给水泵汽轮机高压汽源控制逻辑的改进

华电技术 ›› 2014, Vol. 36 ›› Issue (3): 32-33.

给水泵汽轮机高压汽源控制逻辑的改进

(广东珠海金湾发电有限公司，广东珠海〓519000)

出版日期:2014-03-25

Reformation of control logic of highpressure steam source for feed pump driving turbine

(Guangdong Zhuhai Jinwan Power Generation Company Limited, Zhuhai 519000, China)

Published:2014-03-25

摘要/Abstract

摘要： 摘要：某电厂600MW机组3B给水泵汽轮机运行中后轴承x方向振动不断增大，最终达到跳闸值，导致给水泵汽轮机保护动作。通过分析对比跳闸前、后给水泵汽轮机运行参数，结合配汽方式和控制逻辑，确定振动原因为给水泵汽轮机高压汽源控制方式存在问题。根据分析结果，对控制逻辑进行了改进，消除了汽轮机的振动问题。

关键词: 关键词：给水泵汽轮机, 电液调节系统, 主汽门, 调节汽门, 振动, 跳闸, 控制逻辑

Abstract: Abstract:In operation of the feed pump No.3B driving turbine of the 600MW unit in a power plant, the vibration of the rear bearing in xdirection continuously increased and achieved the trip value finally, and the protection of the feed pump driving turbine tripped. The operation parameters of the feed pump driving turbine before and after the tripping were analyzed and compared. Combing with the steam distribution mode and the control logic, it was determined that the reason of the vibration is poor highpressure steam source control mode of the feed pump driving turbine. According to the analysis result, the control logic was improved, and the larger vibration of the feed pump driving turbine was eliminated.

Key words: Keywords:feed pump driving turbine, microelectrohydrulic control system (MEH), main stop valve, regulating valve, vibration, trip, control logic

刘杰. 给水泵汽轮机高压汽源控制逻辑的改进[J]. 华电技术, 2014, 36(3): 32-33.

LIU Jie. Reformation of control logic of highpressure steam source for feed pump driving turbine[J]. Huadian Technology, 2014, 36(3): 32-33.

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