Aiming at the problems of interlock circuit complex and faults frequent of the origin boiler soot blowing control system for 300mw generation unit, elaborates the necessity of improvement.
针对300 MW火力发电机组原锅炉吹灰控制系统存在的联锁回路复杂、故障频繁等问题，阐述了对该系统进行改进的必要性。
The controller comprises a power circuit, a control circuit, an interlock circuit, a delaying reset circuit, a startup recording meter, a sound indication circuit and an interlock circuit.
控制器的结构包括电源电路、控制电路、互锁电路、延迟复位电路、启动记录仪和声音指示电路、互锁电路。
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