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font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>的制冷压缩机<span style="font-family:Calibri">,</span><span style="font-family:宋体">吸气温度</span>就是指制冷压缩机吸气腔中制冷剂气体的温度<span style="font-family:Calibri">;</span>对离心式<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>的制冷压缩机<span style="font-family:Calibri">,</span>就是指吸气导叶片上制冷剂气体温度。</span></p><p><span style=";font-family:宋体;font-size:14px"> <a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>吸气温度的高低<span style="font-family:Calibri">,</span><span style="font-family:宋体">不仅影响</span>冷水机排气温度的高低<span style="font-family:Calibri">,</span><span style="font-family:宋体">而且对压缩机的容积制冷量有重要影响。压缩机吸气温度高时</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">排气温度也高</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">制冷剂被吸入时的比容大</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">此时压缩机的单位容积制冷量小。相反</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">压缩机吸气温度低时</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">其单位容积制冷量则大。</span></span></p><p><span style=";font-family:宋体;font-size:14px"> 如果<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>的吸气温度过低<span style="font-family:Calibri">,</span><span style="font-family:宋体">可能造成制冷剂液体被压缩机吸入</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">使活塞式</span>冷水机的压缩机发生湿行程。对于离心式<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>来说<span style="font-family:Calibri">,</span><span style="font-family:宋体">过低的吸气温度会使压缩机的吸气压力过低</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">从而可能产生喘振。</span></span></p><p><span style=";font-family:宋体;font-size:14px"> 为了保证<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>的正常运行<span style="font-family:Calibri">,</span><span style="font-family:宋体">吸气温度需要比蒸发温度高一些</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">亦即应具有一定过热度。对于活塞</span>式<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>组<span style="font-family:Calibri">,</span><span style="font-family:宋体">其吸气过热度一般为</span><span style="font-family:Calibri">5</span><span style="font-family:宋体">℃～</span><span style="font-family:Calibri">10</span><span style="font-family:宋体">℃</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">如果采用干式蒸发器</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">则通过调节热力膨胀阀的调节螺杆</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">就可以调节过热度的大小。</span>对离心式<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>组的吸气过热度一般为<span style="font-family:Calibri">2</span><span style="font-family:宋体">℃～</span><span style="font-family:Calibri">3</span><span style="font-family:宋体">℃。离心式<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>组一般采用满液式蒸发器。离心式冷水机组一般采用满液式蒸发器。</span></span></p><p><span style=";font-family:宋体;font-size:14px"> 此外<span style="font-family:Calibri">,</span><span style="font-family:宋体">要注意制冷压缩机吸气管道的长短和包扎保温材料性能的好坏</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">对过热度会有一定影响</span>。</span></p><p><span style=";font-family:宋体;font-size:14px"> 蒸发器中制冷剂液位高低<span style="font-family:Calibri">,</span><span style="font-family:宋体">对过热度的大小也可产生较大的影响。当制冷剂充灌量较少</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">蒸发器中液位较低时</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">吸气过热度会增加。因此</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">在<a href="http://www.tfyqchina.cn/" target="_self" style="font-family: 宋体; font-size: 14px; white-space: normal;"><strong>冷水机</strong></a><span style="font-family: 宋体; font-size: 14px;"></span>组运行中</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">必须注意制冷压缩机吸气温度的控制。</span></span></p><p><br/></p><p><br/></p><p><span style="font-size: 12px;">信息来源:</span><a href="http://www.tfyqchina.cn/" style="font-size: 12px; text-decoration: underline;"><span style="font-size: 12px;">上海田枫仪器有限公司</span></a><span style="font-size: 12px;"> www.tfyqchina.cn</span></p><div><a href="http://www.tfyqchina.cn/" style="font-size: 12px; text-decoration: underline;"><span style="font-size: 12px;">上海田枫仪器有限公司</span></a><span style="font-size: 12px;">专业生产各类</span><a href="http://www.tfyqchina.cn/index.php?case=archive&act=list&catid=3" style="font-size: 12px; text-decoration: underline;"><span style="font-size: 12px;">制冷设备</span></a><span style="font-size: 12px;">，包括</span><a href="http://www.tfyqchina.cn/index.php?case=archive&act=list&catid=37" style="font-size: 12px; text-decoration: underline;"><span style="font-size: 12px;">冷库</span></a><span style="font-size: 12px;">，</span><a href="http://www.tfyqchina.cn/index.php?case=archive&act=list&catid=9" style="font-size: 12px; 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