1000MW超超临界机组炉水循环泵汽蚀原因分析及解决措施  

Analysis and Solving Measures of Boiler Water Circulation Pump Cavitation for 1000MW Ultra-supercritical Unit

作　　者：刘刚[1] 周忠涛[1] 刘海明[1] 杨杰[1] 

机构地区：[1]湖北省电力公司电力科学研究院,湖北武汉430077

出　　处：《湖北电力》2013年第3期53-55,共3页Hubei Electric Power

摘　　要：某1000MW超超临界机组在锅炉快速降压异常工况下炉水循环泵发生汽蚀现象,对炉水循环泵的安全运行造成了不利影响。本文在全面分析炉水循环泵汽蚀原因的基础上,针对炉水循环泵和给水泵串联布置方式的特性,通过对锅炉启动系统运行方式的调整,避免炉水循环泵汽蚀现象的发生,保证炉水循环泵在异常工况下尽快恢复启动。Boiler water circulation pump （BCP） cavitation occurs in 1 000 MW ultra-supercritical unit during the pressure of boiler drops abnormally, which has an adverse impact on the safe operation of the BCP. In this paper, based on the comprehensive analysis of the reason of BCP cavitation, accord- ing to the characteristics of tandem arrangement of BCP and feed water pump, the adjusted operation method of boiler startup system is proposed, then the BCP cavitation is avoided, and the BCP can be recovered startup in abnormal condition as soon as possible.

关 键 词：1000MW 炉水循环泵 汽蚀 串联布置 

分 类 号：TM621.2[电气工程—电力系统及自动化]