炉水循环泵的失效性分析及预防措施

Analysis on the failure of water circulating pump and the protective measures

控制锅炉炉水循环泵是锅炉汽水循环的重要辅助设备,它的工作环境非常恶劣,承受着高温、高压炉水的冲击,它若失效将对锅炉运行产生严重影响。分析了国电山东石横发电厂近10年来炉水循环泵失效的3个原因:绕组引线绝缘工艺不过关、检修维护不到位、不合理的运行参数及启停方式。针对这些因素采取了相应的措施和技术改进,有效地降低了炉水循环泵的失效次数,提高了设备运行的可靠性。

Boiler water circulating pump is the important auxiliary equipment for boiler steam and water circulating,because of having to bear with the impact of high temperature and high pressure water,its working condition is extremely wretched,while its failure would have serious influent on boiler operation.This paper analyzed three reasons which have made pump failures in the last 10 years: unqualified insulation craftwork of winding lead wire,halfhearted overhaul,unreasonable parameters and manners of operation and starting-up/shutting-down.After implementing the improved measures aiming at those problems,the failures times of boiler water pump have been reduced,and the reliability of the pump operation has been raised.