Condensate pumps' arrangement analysis of 300 MW class thermal power plant

YANG Xiao-lu1， CAI Ming-zhe2
（1. Liaoning Electric Power Survey and Design Institute， Shenyang 110005， China；
2. The Fourth Company of Liaoning Electric Power， Liaoyang 111000， China）

Abstract： In order to solve the 300 MW level heating unit's condenser pump disposition problem，four plans was enumerated，respectively including 2×100% capacity condensate pump；3×50% capacity condensate pump；2×100% capacity condensate pump equipped with the frequency changer；3×50% capacity condenser pump equipped with the frequency changer. And the security reliability，the beginning  investment，operating cost，overhaul maintenance and so on，were compared and proved. When carried on the economical comparison in various plans，the expense smallest method was used. The result indicates that the most economic plan is 2×100% capacity condenser pump equipped with the frequency changer one，that the year expense is only 1，594，000 Yuan/year，and it is also safe and reliable，therefore，which is referenced to the same type power plant design.
Key words： power plant； unit； condensate pump； reliability