600MW机组汽动给水泵烧瓦原因分析及对策

华电技术 ›› 2009, Vol. 31 ›› Issue (2): 63-66.

600MW机组汽动给水泵烧瓦原因分析及对策

王勇，曾跃虎

湖南华电长沙发电有限公司，湖南长沙 410203

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-02-25

Reason analysis of bush burning loss fault of steamdriven feed pump in 600MW unit and countermeasure

WANG Yong，ZENG Yuehu

Hunan Huadian Changsha Power Generation Corporation Limited, Changsha 410203, China

Received:1900-01-01 Revised:1900-01-01 Published:2009-02-25

摘要/Abstract

摘要： 湖南华电长沙发电有限公司2×600MW机组多次发生汽动给水泵烧瓦事故，严重威胁了机组的安全运行。通过对比烧瓦前后的参数、分析烧瓦现象以及进行各种试验，找出了烧瓦的根本原因是油中含大的颗粒物和运行中油温偏低。采取了增大汽动给水泵润滑油压力、扩大汽动给水泵进油节流板、严格控制小汽轮机油温等一系列措施，有效地解决了烧瓦问题。

关键词: 汽动给水泵, 烧瓦, 油温

Abstract: The bush burning loss fault of steamdriven feed pump was happened repeatedly in 2×600MW units of Hunan Huadian Changsha Power Generation Corporation Limited, and which caused a grave threat to units safety operation. The parameters before and after bush burning loss were compared, the bush burning loss appearance was analyzed, and some experiments were accomplished. Then the basic reasons of bush burning loss fault were found which is that there were large particulates in oil and the oil temperature was lower at operation. A series of measures were adopted which includes to increase the lubricating oil pressure, to enlarge the oil inlet throttling plate and to control the oil temperature of small turbine strictly and others, so the problem of bush burning loss was resolved effectively.

Key words: steam-driven feed bump, bush burning loss, oil temperature

王勇;曾跃虎. 600MW机组汽动给水泵烧瓦原因分析及对策[J]. 华电技术, 2009, 31(2): 63-66.

WANG Yong;ZENG Yuehu. Reason analysis of bush burning loss fault of steamdriven feed pump in 600MW unit and countermeasure[J]. Huadian Technology, 2009, 31(2): 63-66.

[1]	白蕾. 汽动给水泵在变工况下运行的经济性分析[J]. 华电技术, 2018, 40(4): 50-51.
[2]	邱化海，李峰，景豹. 某335MW机组启动过程中烧瓦事故原因分析及处理[J]. 华电技术, 2018, 40(3): 21-23.
[3]	王大伟. 一种控制油冷却回路改造方案及分析[J]. 华电技术, 2017, 39(8): 50-52.
[4]	陈树科，薛森贤，任绍军. 600MW超临界机组纯汽动给水泵启动方式探讨[J]. 华电技术, 2017, 39(1): 40-42.
[5]	王平波. 300MW机组无电动给水泵运行方案[J]. 华电技术, 2015, 37(6): 52-53.
[6]	张奇. ６００ＭＷ大型水轮发电机组推力轴承瓦温和油温高原因分析及处理[J]. 华电技术, 2015, 37(10): 54-57.
[7]	严晓生. 300MW机组启动阶段锅炉上水优化[J]. 华电技术, 2013, 35(6): 56-57.
[8]	曾琦;李强;薛鹏. 采用汽动给水泵替代电动给水泵上水的改进方案[J]. 华电技术, 2013, 35(3): 55-56.
[9]	燕洪明. 670 MW机组FA1D67型前置泵节能优化改造[J]. 华电技术, 2013, 35(2): 76-78.
[10]	夏尊宇. 全厂停电过程中对大机润滑油的控制[J]. 华电技术, 2013, 35(10): 42-43.
[11]	闵承勇. 汽动给水泵前置泵电流偏大的原因分析及处理[J]. 华电技术, 2012, 34(6): 60-62.
[12]	刘俊峰;范运修. 全容量给水泵汽轮机的技术特点及节能效果分析[J]. 华电技术, 2012, 34(10): 57-59.
[13]	李友亮. WGZ220/9.8-13型锅炉扩容特性分析[J]. 华电技术, 2010, 32(9): 33-36.
[14]	苗晓冬;徐涌超;殷佩山. 浅析200MW发电机密封油系统存在的问题[J]. 华电技术, 2010, 32(3): 36-39.
[15]	杨建平. 汽动给水泵前置泵锅炉冷态上水方案优化及实施[J]. 华电技术, 2009, 31(9): 53-54.