摘要：
通過對(duì)電廠#1、#2汽輪機(jī)組給水泵密封水回水系統(tǒng)研究，結(jié)合汽動(dòng)給水泵結(jié)構(gòu)特點(diǎn)，綜合了單級(jí)水封、多級(jí)水封、和帶水箱密封水回收系統(tǒng)的優(yōu)點(diǎn)，經(jīng)過對(duì)機(jī)組密封水系統(tǒng)的改造，徹底地解決了給水泵潤(rùn)滑油系統(tǒng)進(jìn)水、密封水不能回收的問題。對(duì)同類型660MW超超臨界機(jī)組給水泵密封水回收系統(tǒng)和給水泵組穩(wěn)定運(yùn)行有一定的借鑒作用。
關(guān)鍵詞：給水泵密封水回收系統(tǒng)；迷宮密封；單級(jí)U型水封

Abstract:
Through to Xinchang Power plant #1, the #2 steamship unit feed pump seal water backwater system research, the union steam moves the feed pump unique feature, synthesized the single stage hydraulic packing, the multistage hydraulic packing, and the belt water tank seal water recovery system merit, passes through seals the aqueous system to the Xinchang unit the transformation, solved the feed pump lubricating oil system to enter the question thoroughly which the water, the seal water could not recycle.Has certain model function to the same type 660MW ultra supercritical unit feed pump seal water recovery system and the feed pump group stable movement.
Key word: Feed pump seal water recovery system; Labyrinth; Single stage U hydraulic packing