电厂水环式真空泵密封水温度对单元机组效率的影响  

Influence of seal water temperature of water ring vacuum bumps on unit efficiency

作　　者：邹征宇[1] 石奇光[1] 王占武 李遂甫 何强 

机构地区：[1]上海电力学院,上海200090 [2]龙岗发电有限公司,河南许昌461690

出　　处：《华东电力》2006年第2期54-56,共3页East China Electric Power

摘　　要：定量分析电厂水环式真空泵密封水温度对凝汽器压力的影响,并利用等效焓降法得到凝汽器压力与单元机组效率的关系,从而得到真空泵密封水温度和单元机组经济性的定量关系。实例计算表明,可通过降低真空泵密封水的温度提高机组效率,为机组的进一步节能提供了理论依据。The influence of the seal water temperature of water ring vacuum bumps on the condenser pressure is analyzed quantitatively, and the relationship hetween the condenser pressure and the unit efficiency was identified with equivalent enthalpy drop method. Consequently, the quantitative relation between the seal water temperature of water ring vacuum bumps and the unit economy is given. Example computation shows that the unit＇s efficiency can he improved by reducing the seal water temperature of the water ring vacuum bump.

关 键 词：真空泵 等效焓降 热经济性 密封水 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]