DG185-385型给水泵芯包改造  

UPGRADING OF DG185-385 FEED WATER PUMP FOR A POWER PLANT

作　　者：吕红缨[1] 卢建林 

机构地区：[1]重庆电力高等专科学校动力工程系,重庆400053 [2]国网新源公司重庆发电厂,重庆400053

出　　处：《热力发电》2012年第12期109-110,89,共3页Thermal Power Generation

摘　　要：基于DG185-385型给水泵的比转速,采用二元设计、三元校核的方法对DG185-385型芯包进行改造,并通过改造前、后的给水泵性能试验验证改造效果。结果表明,给水泵改造后其流量、扬程和效率均有较大提高,可满足单机在150MW负荷以下2台给水泵高效轮换运行。Based on the specific speed of DG185-385 feed water pump,upgrading of the pump was conducted by using dualistic designing and ternary checking method.The optimization effect was verified through performance test of the pump before and after the retrofitting.Results showed that,after improvement,the flow,delivery lift and efficiency of the pump was improved a lot.Two water pumps run alternately and efficiently to insure safe operation of single generator under load of 150 MW can be realized.

关 键 词：DG185-385型 给水泵 芯包 比转速 流量 扬程 效率 二元设计 三元校核 

分 类 号：TK223.5[动力工程及工程热物理—动力机械及工程]