This paper briefly introduces the sealing principle of the screw sealing feed water pump, and deals with its frequent trip problem arising from inadequate pressure difference of seal water.
在对螺旋密封式给水泵的密封原理作简要介绍的基础上，针对其因密封水压差小而导致频繁跳泵的问题进行了讨论。
The boiler MFT (master fuel trip) protection was actuated during start up of feed water pump A of Unit 1 and 2 in Huaneng Shantou Power Plant.
华能汕头发电厂1号、2号机组发生启动给水泵时锅炉主燃料跳闸（MFT）的事故。
The boiler MFT (master fuel trip) protection was actuated during start up of feed water pump A of Unit 1 and 2 in Huaneng Shantou Power Plant.
华能汕头发电厂1号、2号机组发生启动给水泵时锅炉主燃料跳闸（MFT）的事故。
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