热力发电Issue(11)：12-14,3.DOI:10.3969/j.issn.1002-3364.2014.11.012
机组冷态启动中几种投运方案经济性分析
Economic analysis on several operation schemes for steam-driven feedwater pump group during unit cold starting
朱慧强1
作者信息
- 1. 东北电力大学能源与动力工程学院，吉林 吉林 132012
- 折叠
摘要
Abstract
By taking a subcritical 350 MW unit in Huaneng Dandong Power Plant as an example,the opera-tion schemes of the steam-driven feedwater pump group of which the booster pump and small steam turbine are driven coaxially were investigated.Moreover,the calculated economy of three schemes was compared. The results show that,the Scheme III has the optimum economy and safety,in which the motor-driven feedwater pumps were adopted during water feeding,boiler washing and furnace temperature enhancing un-til the steam turbine speed increases to 2 900 r/min in the initial stage of unit cold state startup,then the first steam-driven feedwater pump was put into service when the unit load reached 30%.Therefore,not all units are fitted for using steam-driven turbine to accomplish cold state startup.The reasonable startup schemes should be proposed by considering the actual situation of each unit comprehensively.关键词
亚临界/350 MW机组/冷态启动/汽动给水泵/电动给水泵Key words
subcritical/350 MW unit/cold state startup/steam-driven feed pump/motor-driven feed pump分类
能源科技引用本文复制引用
朱慧强..机组冷态启动中几种投运方案经济性分析[J].热力发电,2014,(11):12-14,3.
