元宝山600MW机组汽轮机跳闸引起锅炉灭火的原因及解决方法

Cause and Solution of Boiler Extinction Due To Turbine Trip-ping of the 600 MW Unit in Yuanbaoshan Power Station

单元协调控制机组直流锅炉给水调节因汽轮机进汽阀速关扰动失控引起给水流量低限保护动作而使锅炉灭火,直接影响大机组的安全和稳定运行.本文介绍了在元宝山发电厂600MW机组上采用的解决办法.

Extinction of a once-through boiler, that may imperil safe and steady operation, due to functional action of feed water limit flow protection effected by misscoordinated response of the stop valve close off. The paper presents a solution of the problem for the 600 MW unit in Yuanbaoshen Power Station.