水环式真空泵工作水温度过高对机组真空的影响及应对措施  

Influence of Over-high Water Temperature of Water-ring Vacuum Pump on Vacuum System of Generator Unit and Response

作　　者：周兰欣[1] 林琦[1] 周玉[1] 

机构地区：[1]华北电力大学,河北省保定市071003

出　　处：《电力建设》2010年第12期98-101,共4页Electric Power Construction

摘　　要：针对水环式真空泵在夏季工况常因工作水温度过高导致抽吸能力严重下降的问题,提出了采用中央空调冷冻水冷却真空泵以降低工作水温度的措施。通过分析比较,得出该方法在夏季工况能明显提高真空泵的工作效率、机组的真空以及机组的经济性,对提高抽气设备的抽吸能力具有一定的参考意义。The capacity of water-ring vacuum pumps will be reduced due to the high water temperature under summer working condition.In order to solve this problem,this paper proposed a method,which uses the central air-conditioning chilled water to cool vacuum pumps and thus reduce the working water temperature.Through analysis and comparison,it was showed that this method can significantly improve the operation efficiency of vacuum pumps,increase the vacuum capacity of generator units,and enhance the benefit of the system in summer working conditions.

关 键 词：真空泵 冷冻水 工作水 机组真空 凝汽器 经济性 

分 类 号：TK223.5[动力工程及工程热物理—动力机械及工程]