330MW机组电动给水泵改汽动给水泵的研究与实践

发布时间：2018-03-19 00:26

本文选题：330MW机组　切入点：给水泵驱动方式　出处：《华北电力大学》2014年硕士论文　论文类型：学位论文

【摘要】：锅炉给水泵是火力发电机组的重要辅机,国内常用的给水泵驱动方式主要有小汽轮机驱动及液力耦合器调速电动机驱动两种,如何比较这两种驱动方式的经济性一直存在争议。本文对330MW机组给水泵在电动机驱动和汽轮机驱动两种不同驱动方式下,机组的主要热经济性指标进行了比较分析,论证了对330MW机组给水泵由电动改为汽动的可行性。对海勃湾发电厂330MW机组采用小汽轮机拖动给水泵进行了热经济性对比试验,给出了330MW机组进行汽动给水泵改造的经验与建议。结果表明,330MW机组给水泵驱动改为小汽轮机驱动,热经经济性与电驱动方式基本持平,但改造后相当于增加了机组容量,因此,具有很大的经济实用价值。
[Abstract]:Boiler feed water pump is an important auxiliary unit of thermal power generating set. There are mainly two kinds of driving ways of feed water pump in China: small steam turbine drive and hydraulic coupler speed regulating motor drive. How to compare the economic efficiency of these two driving modes has always been controversial. This paper compares and analyzes the main thermal economic indexes of feed water pump of 330 MW unit under two different driving modes: motor drive and steam turbine drive. The feasibility of changing the feed water pump of 330 MW unit from electric to steam is demonstrated. The comparison test of heat economy of 330 MW unit driven by small steam turbine in Haibo Bay Power Plant is carried out. The experience and suggestion of retrofitting steam feed water pump for 330 MW unit are given. The result shows that the feed pump drive of 330MW unit is changed to small steam turbine drive, and the heat economy is basically equal to the electric drive mode, but the capacity of the unit is increased after the retrofit. It has great economic and practical value.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

【参考文献】