shuili_123 发表于 2024-5-24 01:59:25

空气源热泵设计选型与配置大全!(专业)


    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><strong style="color: blue;"><span style="color: green;">设计、选型与配置</span></strong></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">一、空调负荷计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.空调负荷计算的组成(QL)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(1)由于室内外温差和太阳辐射作用,通过建筑物围护结构传入室内</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">的热量形成的冷负荷;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(2)人体散热、散湿形成的冷负荷;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(3)灯光照明散热形成的冷负荷;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(4)其他设备散热形成的冷负荷;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(5)渗透空气所形成的冷负荷</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(6)新风量负荷</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.空调负荷计算方法简单介绍</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">空调动态负荷的计算显得比较繁琐,即便是采用一些简化手段,计算工作量也是比较大的。估算最简便,捷径行路,人之通性,慢慢的被它取而代之了。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">但是估算的根据并不坚定,偏于保守是不可避免的,总是顾虑怕估算的小了,这也是可以理解的。估算法也要注意与实际相符合,要根据实际的经验以及不同建筑的各自不同的情况。目前空调负荷的计算还是以估算为主。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.民用建筑空调单位面积冷负荷(qL)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJgNChRUd22S1y3s2ls89Qb6LDkX1zZtDMRX7HUxgj493wqRKVmF0nqA/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;">4.负荷计算——单位面积冷负荷法</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">QL=qL×S</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">式中:QL——建筑物空调房间总冷负荷 (W)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; QL—— 冷负荷 (W/m2&nbsp;)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; S—— 空调房间面积 (m2)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">二、 空调末端(风机盘管)的计算与选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(1)根据风量:房间面积、层高(吊顶后)和房间气体循环次数三者的乘积即为房间的循环风量。其对应的风机盘管高速风量,即可确定风机盘管型号。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(2)根据冷负荷:根据单位面积负荷和房间面积,可得到房间所需的冷负荷值。利用房间冷负荷对应风机盘管的中速风量时的制冷量即可确定风机盘管型号</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">一般采用第二种方法——根据冷负荷选择风机盘管,在特殊场合如对噪音要求较高的场所,可用第一种方法进行校核。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">确定型号以后,还需确定风机盘管的安装方式(明装或安装),送回风方式(底送底回,侧送底回等)以及水管连接位置(左或右)等条件。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">房间面积较大时应考虑使用多个风机盘管,房间单位面积负荷较大,对噪音要求不高时可考虑使用风量和制冷量较大的风机盘管。注意:对于风管超过一定长度的风盘,应采用中、高静压的风盘,且出风管道上不宜多于两个出风口。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">三、 采暖负荷计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.采暖负荷计算的组成(Qn)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">冬季采暖通风系统的热负荷,应根据建筑物下列散失和获得的热量确定:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)围护结构的耗热量,包括基本耗热量和附加耗热量,</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)加热由门窗缝隙渗入室内的冷空气的耗热量</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3)加热由门、孔沿及相邻房间浸入的冷空气的耗热量;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4)建筑内部设备得热;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5)通过其他途径散失或获得的热量。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">对于一般民用住宅层高在3m&nbsp;以下工程上可采用面积热负荷法进行概算。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">单位面积热负荷法:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">Qn=K×qn×S</strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">式中:Qn—— 建筑物的采暖设计热负荷,W</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; S&nbsp;—— 建筑物的建筑面积,m2;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; qn—— 建筑物的采暖单位面积热负荷,W/m2,</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; K&nbsp;—— 附加系数</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">建筑各个区域的围护结构、冷空气渗透情况均有差别,如果需要计算的较为准确,应根据各个区域在建筑中的位置(如:是否靠近外墙、外墙上的门窗)和门窗(是否有冷空气渗透)进行分别计算。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;室内采暖单位面积热负荷计算(qn)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)一般原则</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">别墅的负荷一般要比住宅的大一些。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">别墅的顶层负荷要大于中间层或底层。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">普通卫生间根据面积提供500~1000W的定值来计算。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">别墅地下室一般不配。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">客卧一般负荷相对较大。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">对于外墙较大或玻璃面积较大的,建议做负荷计算</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)室内采暖单位面积热负荷估算表(qn)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/xqDqXo02URMVz0Y46Keo0gazumEsiaaL1QnrcV5QHicUkdSosRTCS28AueSVCTUA1T4qfajUiaJiaPJ6tz3FxYEysA/640?wx_fmt=jpeg&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;">3.&nbsp;附加系数</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">附加系数为采暖面积与全房间面积的比值,根据下表进行选择:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJLfWRicj7GMsPuWicO1xkQ37VNiahaptDKGQrp4icqwPySlghbia1yeM9biaQ/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">上表的附加系数为标准推荐数值,在实际工程中应根据实际情况做出具体调整。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">房间进深大于6&nbsp;米时,以距外墙6&nbsp;米为界分区当作不同的单独房间,分别计算供暖热负荷。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4.另一种采暖热负荷的估算办法</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">Qn=a</span></strong><strong style="color: blue;"><span style="color: green;">×Rn×V×(tn-tw)</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Qn—— 采暖热负荷 W</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">tn—— 室内空气温度 ℃</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">tw—— 室外供暖计算温度 ℃</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">V&nbsp;—— 建筑的体积 m3</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Rn—— 体积热指标 根据建筑的保温情况宜取0.4-0.7</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">a&nbsp;——&nbsp;修正系数。请参考下表</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJpzkhMS4XNcicLYvv0nuR5ibYHbu6rcegME59ouvdOy0W3ahx9dKRuLibw/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span><span style="color: green;"><strong style="color: blue;"><span style="color: green;">四、 采暖末端计算与选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;地暖盘管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">地暖面盘管的管间距直接影响到地板的散热量,而地板散热量需满足室内负荷的要求。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管间距根据管材、室内设计温度、供水温度、地板材料等因素而定。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">下表是PE-RT管材,地面材料为水泥地砖,在不同水温、室内温度和管间距的条件下的地面散热量(其他地面材料的散热量数据见附录1)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/xqDqXo02URMVz0Y46Keo0gazumEsiaaL1LXib4qCahvgU7EbyxCyISUaCic8rsgfh2QFPQAh9G4PLG3Vew6xXG0icg/640?wx_fmt=jpeg&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;散热片</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">根据散热片进出口水温,求出散热片平均水温;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">根据室内设计温度求出散热温差;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">根据散热温差查散热片选型表,获得单片散热量q。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">五、 空气源热泵冷暖机组配置计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;确定建筑的负荷</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">由设计院获取</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">根据建筑物的负荷指标和相应建筑面积的乘积,得出建筑的负荷。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">将各空调房间的负荷逐个相加得出空调总负荷。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;机组台数和容量的确定</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">机组总负荷的确定:建筑的负荷或空调总负荷×80%左右的同时使用率。公寓房可不考虑同时使用率。特殊情况需根据建筑功能和使用情况确定。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">大、中型工程应选二台以上,但不宜过多,并考虑备用机组的可能性。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">若建筑物的最大负荷与最小负荷的差距过大,宜大、小容量机组搭配工作。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">六、 机组安装位置规划和环境控制</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;机组安装位置规划</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)&nbsp;热泵主机的安装与空调室外机的安装要求相似。可安装在屋顶、阳台、地面上。出风口应避开迎风方向。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)&nbsp;主机(侧出风)与四周墙壁或其他遮挡物之间的距离不能太小,出风口1米内不应有遮挡物,保证主机换热器的吸热散热不受阻碍。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3)&nbsp;主机(顶出风)进风口1米内不能有遮挡物,出风口2米内不应有障碍物,保证主机换热器的吸热散热不受阻碍。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">当机组安装在屋檐下或机组上方有水平障碍物时,机组的安装位置必须在通风良好的地方,否则容易发生气流短路,造成机组散热能力差。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;机组安装环境控制</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)&nbsp;尽量不在阳光直射的地方。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)&nbsp;不在卧室的窗台或卧室的附近。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3)&nbsp;进、出风有足够的距离,便于散热。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4)&nbsp;能承受室外机自重的&nbsp;2-3&nbsp;倍以上的地方。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5)&nbsp;没有油烟或其它腐蚀气体的地方。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">6)&nbsp;不影响其它因素或环境的地方。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">七、 采暖和冷暖系统介绍</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;采暖和冷暖系统分类</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)&nbsp;开式循环系统:管路中的循环水与大气相通的系统。循环水水与大气接触,易腐蚀管路;用户与机房高差较大时,水泵则需克服高差造成的静水压力,耗电量大。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)&nbsp;闭式循环系统:管路系统不与大气接触,在系统最高点设有排气阀的系统。管道与设备不易腐蚀;不需克服高度差,从而循环水泵功率小。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3)&nbsp;同程式系统:并联环路中的各支路的流程都是相等的系统。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">◆优点:系统的水力稳定性好,各设备间的水量分配均衡。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">◆缺点:由于采用回程管,管道的长度增加,水阻力增大,使水泵的能耗增加,并且增加了初投资。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJNibLctRPCWZJHK2ViburqJdHO3Z9gyIehUG1shHaTK8rXmicNJcQBUT3w/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4)&nbsp;异程式系统:并联环路中的各支路流程不等的系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">◆优点:异程式系统简单,耗用管材少,施工难度小。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">◆缺点:各并联环路管路长度不等,阻力不等,流量分配难以平衡。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJYCXoJaGRfhic9eqZqibZj4ZaobwV1gVp8G9SHNHH05kX3VoKf0afuJDA/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5)&nbsp;定水量系统:系统中循环水量为定值,或夏季和冬季分别采用不同的定水量,负荷变化时,改变供、回水温度以改变制冷量或制热量的系统。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">特点:定水量系统简单,操作方便,不需要复杂的自控设备和变水量定压控制。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">6)&nbsp;变水量系统,一般适用于间歇性降温的系统(影院、剧场、大会议厅等):保持供水温度在一定范围内,当负荷变化时,改变供水量的系统。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">特点:变水量系统的水泵的能耗随负荷较少而降低,在配管设计时可考虑同时使用系数,管径可相应减少,降低水泵和管道系统的初投资;但是需要采用供、回水压差进行流量控制,自控系统比较复杂。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;空气源热泵采暖和冷暖常用系统型式</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">采暖系统图——不带缓冲水箱</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJUW6DMkC48HGYXG5kwonPXk02sWKXUdY3ZlxYHtawOz9Uttz1pqJ1nQ/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;">采暖系统图——带缓冲水箱</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJI1wxIC8Jz8R1M0jemicf5zTrGmIwnQFM09zsQoVyWu3edAArmtZPRUA/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;">冷暖系统图——不带缓冲水箱</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJSia66HAiafcoYzzt3nj8IxJowOia674Cwx6lLgGn55EVUZibMr3H3xgzdQ/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;">冷暖系统图——带缓冲水箱</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">八、 水泵选型计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">冷暖系统按空调系统的水流量和水阻力选定水泵流量和扬程。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;水泵的流量:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">在没有考虑同时使用率的情况下选定的机组,可根据产品样本提供的数值乘以1.1~1.2倍的系数选用。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">如果考虑了同时使用率,建议用如下公式进行计算。公式中的Q为没</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">有考虑同时使用率情况下的总负荷。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">L = Q</span></strong><strong style="color: blue;"><span style="color: green;">×0.86/ △T</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">L&nbsp;—— 循环水流量 m3/h</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Q&nbsp;—— 总负荷 kW</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">△T —— 进回水温差 ℃(采暖系统取10℃,冷暖系统取5℃)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水泵的流量 = (1.1~1.2)×系统循环水量</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;水泵的扬程:应为它承担的供回水管网最不利环路的总水压降。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">最不利环路阻力计算经验公式如下:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">Hmax&nbsp;=</span></strong><strong style="color: blue;"><span style="color: green;">Δp1+Δp2+0.05L(1+ K)</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">△P1:机组内部的水压降;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">△P2:最不利环路中并联的各末端装置的水压损失最大一台(或部分)的水压降。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.05L:沿程损失取每100m管长约5mH2O;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">式中K为最不利环路中局部阻力当量长度总和与直管总长的比值。当最不利环路较长时K取0.2~0.3;最不利环路较短时K取0.4~0.6。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">水泵扬程(mH2O)= (1.1~1.2)× Hmax</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.&nbsp;其他要求:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水泵必须选用热水泵,其Q~H&nbsp;特性曲线,应是随着流量的增大,扬程逐渐下降的曲线。同时适用于水/乙二醇(最高30%)溶液。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">应根据水泵提供商提供的参数要求,并根据现场水力系统的要求选泵,水泵应在其高效区内运行。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">九、 膨胀罐选型计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="https://mmbiz.qpic.cn/mmbiz_png/1XHj0hKXRcuScMW5BckDGwfib1OJOP2PJu4JibkAwmiaSqxG5VzhIOIUJR87SFPuAscGWHicDZtTKeVNVPDBVtr5yw/640?tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">C =&nbsp;系统中的水容量(包括热泵主机、管道、末端等)约为系统循环</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水流量的1/15&nbsp;到1/20。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">e =&nbsp;水的热膨胀系数(系统冷却时水温和锅炉运行时的最高水温的水</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">膨胀率之差,见下表),标准设备中e=0.0359(90℃)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">P1=膨胀罐的预充压力(绝对压力)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">P2=系统运行的最高压力(绝对压力)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">V =&nbsp;膨胀罐的体积</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">选型经验:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5HP&nbsp;以下 选用的2L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5-10HP&nbsp;选用的5L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10-18HP&nbsp;选用的8L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">18-30HP&nbsp;选用的12L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">30-45HP&nbsp;选用的18L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">45-60HP&nbsp;选用的24L 膨胀罐</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">(其中制冷/热量KW 和HP 的换算关系为1HP ≈ 2.5KW)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十、 储能(缓冲)水箱计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水暖系统需要考虑系统水容量对系统稳定性的影响,对于空气源热泵地暖系统,最大的影响因素是冬季机组除霜。空气源热泵机组化霜时间为&nbsp;3-8min,取化霜时间&nbsp;4&nbsp;min&nbsp;来计算蓄能水箱容积。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">系统热稳定性要求:冬季运行时,主机除霜时间&nbsp;4&nbsp;min,供水温度允许降低不超过3℃。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">系统最小水容量M1:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">= Q * T /(C*3) (kg)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Q&nbsp;—— 主机制热量 (kw)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">T —— 化霜时间 (S)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">C —— 水的比热取4.2 (kJ/kg℃)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">系统水容量M2:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">= 0.15*L (kg)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">L&nbsp;—— 系统管路总长 (m)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">储能水箱有效容积M:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp;= M1-M2 (kg)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十一、 系统管道计算</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.管径计算公式如下:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Q:管段内流经的水流量(L/s)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">D:管道内径(mm)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">V:假定的水流速(m/s)&nbsp;(管内水流速推荐表如下,单位m/s)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.管径经验选定法——系统水流量和单位长度阻力损失表</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.&nbsp;连接各末端装置的供回水支管的管径,宜与设备的进出水管接管管径一致,可查产品样本获知。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十二、 分集水器选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;材质为黄铜材质或不锈钢材质,同时适用于水/乙二醇(最高30%)溶液。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;一般规格:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.&nbsp;选型建议:根据盘管环路数选择分集水器支路数,支路数应控制在8路以内,若超过8&nbsp;路,可增设多一套分集水器解决。分集水器主管管径应至少比系统供水管管径大一个规格,支路数越多,分集水器主管管径宜越大,具体以实际水力计算为准。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十三、 地暖管的选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.&nbsp;地暖管管径</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1)&nbsp;在水阻力不超限的情况下,水流速度越大管道内越不容易积气,有利于减小传热热阻从而增加散热量。一般管道内水流速度不得小于0.25m/s,一般流速应在0.25m/s-0.5m/s&nbsp;之间为宜,分集水器内的水流速一般不宜超过0.8m/s,过小的流速会影响散热量,过大的流速则会增加水泵的负担,且水流噪声会较明显。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2)&nbsp;一般要求在任何情况下系统水流量不得小于系统额定水流量的&nbsp;60%,如果实际中有可能出现流量小于60%的情况,需加装压差旁通阀或其他旁通措施,否则可能导致机组保护。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3)&nbsp;从减少加热盘管的水侧阻力,提高采暖效果的角度考虑,加热管道宜选择外径Φ20&nbsp;管道,从施工安装方便的角度考虑,加热管道宜选择外径Φ16&nbsp;管道,根据工程实际情况选择合适的方案。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.&nbsp;地暖管长度</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">加热盘管的长度和环路简易计算(例:采暖房间内面积10&nbsp;㎡,分集水器与采暖房间连接距离10&nbsp;米)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">加热盘管长度建议:每环路加热盘管长度宜控制在60~80&nbsp;米,最长不应超过100&nbsp;米,各环路长度宜相等或相近,管长差值应控制在15&nbsp;米内。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.&nbsp;地暖管材质</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">PE-X&nbsp;:交联聚乙烯&nbsp;,力学性能好,耐低温和高温。但是没有热塑性,不能采用热熔接,通常采用卡式连接。是目前欧洲在地暖系统中使用量最大的一个品种。进口和国产的差价更大,低价位的产品应用存在一定的风险。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">PE-RT:中密度聚乙烯,力学性能好,耐应力开裂,低温冲击,耐水压,耐热蠕变的性能。具有可以热熔连接、原料性能稳定可靠和柔韧性好等优点,其综合的优良特性使之在地板辐射采暖领域中具有一定的竞争力。价格适中。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">PB:聚丁烯&nbsp;,管材最柔软,相同压力下,管壁设计最薄,是当前几种用于热水的塑料管中价格最贵和可靠性最高的品种。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">由于采暖系统中渗入氧会加速系统的氧化腐蚀,选择PB、PE-X、PE-RT塑料管道时宜选择含有阻氧层的管道。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十四、 散热片的选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1、根据房间的热负荷和散热片的散热量相匹配的原则进行选型;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2、兼顾房间的舒适性、美观性来确定与之相符的散热片的型号;</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3、散热片选型的计算方法:</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">A=Q/q×β1×β2</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">A:&nbsp;散热片片数</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">Q:&nbsp;房间热负荷</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">q:&nbsp;单片散热量</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">β1:&nbsp;散热片片数修正系数</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">β2:&nbsp;散热片连接形式修正系数</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;">十五、 风机盘管的选择</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">风机盘管分类</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按形式:卧式暗装、卧式明装、立式暗装、立式明装、卡式五种</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按厚度:超薄型、普通型</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按有无冷凝水泵:普通型、豪华型</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按机组静压:0Pa、12Pa、30Pa、50Pa、80Pa&nbsp;(机外静压)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按照排管数量&nbsp;:两排管、三排管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">按制式:两管制、四管制</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">确定型号以后,还需确定风机盘管的安装方式(明装或安装),送回风方式(底送底回,侧送底回等)以及水管连接位置(左或右)等条件。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">房间面积较大时应考虑使用多个风机盘管,房间单位面积负荷较大,对噪音要求不高时可考虑使用风量和制冷量较大的风机盘管。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">考虑所接风管的沿程阻力、出风口的阻力、软接的阻力,&nbsp;低静压(12pa)直接接风口或接不超过1米的风管,中静压的风盘(30pa)接不超过四米的风管,高静压(50pa)的风盘接不超过七米的风管。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.比摩阻宜控制在100~300Pa/m,不应大于400Pa/m;且房间内空调管道流量不宜超过下表的限值。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">空调房间内空调水管流速限值</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管径DN(mm)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">20</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">25</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">32</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">50</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">70</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">80</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">最大流速(m/s)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">注:摘自全国民用建筑工程设计技术措施</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.空调冷冻水系统,根据流量确定管径可按下表选择</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">钢管管径/㎜</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">闭式水系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">开式水系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;">流量/(m</span><span style="color: green;">³</span><span style="color: green;">/h)</span></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">kPa/100m</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;">流量/(m</span><span style="color: green;">³</span><span style="color: green;">/h)</span></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">kPa/100m</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">15</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0~0.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">20</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.5~1.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">25</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1~2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0~1.3</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0~43</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">32</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2~4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.3~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">11~40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4~6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2~4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">50</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">6~11</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4~8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">65</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">11~18</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~14</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">80</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">18~32</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">14~22</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">32~65</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">22~45</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">--</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">125</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">65~115</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~60</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">45~82</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">150</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">115~185</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~47</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">82~130</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~43</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">200</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">185~380</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~37</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">130~200</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~24</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">380~560</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">9~26</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">200~340</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">10~18</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">300</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">560~820</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~23</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">340~470</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~15</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">350</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">820~950</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~18</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">470~610</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~13</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">400</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">950~1250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~17</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">610~750</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">7~12</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">450</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1250~1590</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~15</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">750~1000</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">7~12</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">500</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1590~2000</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">8~13</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1000~1230</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">7~11</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">引自:《暖通空调系统设计手册》</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">3.冷凝水管公称直径可按下表确定</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">冷负荷</p>&nbsp;(kw)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">公称直径</p>&nbsp;(mm)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">冷负荷</p>&nbsp;(kw)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">公称直径</p>&nbsp;(mm)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">冷负荷</p>&nbsp;(kw)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">公称直径</p>&nbsp;(mm)
      
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">7</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">20</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">101~176</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1056~1512</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">7.1~17.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">25</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">177~598</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">50</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1513~12462</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">125</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">17.7~100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">32</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">599~1055</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">80</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">>12462</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">150</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">注:本资料引自美国MCQUAY公司《水源热泵空调设计手册》。</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">4.冷却水管的流速宜按下表选用</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管道类型</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管径DN(mm)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">流速(m/s)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">备注</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水泵出水管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">≤250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.2~1.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管径较小时宜取下限流速,管径大时宜取上限流速</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">>250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">水泵吸水管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">接集水箱</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">≤100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.6~0.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">>100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.8~1.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">接循环干管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">≤250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.0~1.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">>250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">循环干管</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">≤250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">250~500</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.0~2.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">>250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">2.5~3.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">5.管内水流速推荐值</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管内水流速推荐值/(m/s)</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管径/mm</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">15</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">20</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">25</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">32</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">40</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">50</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">65</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">80</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">闭式系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.4~0.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.5~0.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.6~0.7</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.7~0.9</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.8~1.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.9~1.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.1~1.4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.2~1.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">开式系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.3~0.4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.4~0.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.5~0.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.6~0.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.7~0.9</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.8~1.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">0.9~1.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.1~1.4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">管径/mm</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">100</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">125</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">150</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">200</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">250</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">300</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">350</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">400</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">闭式系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.3~1.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.6~2.2</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.8~2.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.8~2.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.9~2.9</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.6~2.5</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.8~2.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">开式系统</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.2~1.6</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.4~1.8</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.5~2.0</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.6~2.3</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.7~2.4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.7~2.4</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.6~2.1</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">1.8~2.3</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">声明:本文转单位者的辛苦付出,转载目的在于传递和分享更多信息,达到交流之目的!</span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><span style="color: green;"> &nbsp; &nbsp; 如今没有什么不能被科技改变,包括企业制度和人性,还有宇宙和太空!</span></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>—<span style="color: green;">END</span>—<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><strong style="color: blue;"><strong style="color: blue;">&nbsp; &nbsp;加友请扫描</strong></strong></strong></span><strong style="color: blue;"><strong style="color: blue;"><strong style="color: blue;">关注</strong></strong></strong><strong style="color: blue;"><strong style="color: blue;"><strong style="color: blue;">!</strong></strong></strong></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;"><strong style="color: blue;"><strong style="color: blue;"> &nbsp; ~贝尔热能科技!</strong></strong></strong></span></p>
    <p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 100%; margin-bottom: 20px;"></p>


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查看完整版本: 空气源热泵设计选型与配置大全!(专业)