Circulating water pump outlet Hydraulic Control Butterfly valve is related to the unit itself and even the safe operation of the entire. However compared with the traditional interior layout of the hydraulic control valve the open layout is facing worse operating environment, which brings many hidden dangers into the system's security. Aiming at my plant's problems, this article proposed some suggestions on the selection ,installation and maintenance, from the angle of thermal control.%循环水泵出口液控蝶阀关系到循环水泵自身乃至整台机组的安全运行。但露天布置的液控蝶阀跟传统室内布置的液控蝶阀比，其运行环境比较恶劣，对系统的安全投运带来许多隐患。针对浙江大唐乌沙山发电厂出现的问题，本文从热控角度提出选型、安装、维护等方面的几点建议。
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