燃机电厂凝汽器水环真空泵节能分析  

Analysis on the Energy-saving of the Liquid-ring Type Vacuum Pump for the Condenser in a Gas Turbine Power Plant

作　　者：王少峰 

机构地区：[1]深圳前湾燃机电厂,深圳518054

出　　处：《发电设备》2012年第4期248-251,255,共5页Power Equipment

摘　　要：针对凝汽器水环式真空系统的经济性,从变频控制节能原理及转速对真空泵效率的影响两方面进行了分析,得出凝汽器真空系统变频改造节能效果不显著的结论,进而提出两班制运行的联合循环机组停机时可不破真空而直接停运真空泵,待机组重新启动时再投运真空泵,以达到有效节能的目的。In view of the economy of the condenser liquid-ring type vacuum system, analysis on both the energy-saving principle of frequency conversion controlling and the effect of the revolution against the vacuum pump efficiency the has been carried out and the conclusion which the energy-saving result is not obvious has been obtained by the frequency conversion improvement of the condenser vacuum system. The way of direct stopping operation of the vacuum pump without breaking vacuum will be adopted while the combined cycle unit with two-shift operations stops. The vacuum pump will be put into operation when the combined cycle unit starts up again so as to achieve effective conservation of energy.

关 键 词：联合循环机组 水环式真空泵 两班制运行 节能 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]