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为提高工业锅炉自动化运行的水平,在锅炉的给水管道上安装回转式给水调节阀调节锅炉给水流量。操作阀门时,通过DKj电动执行器,将调节仪表输来的0～10mA的控制电信号转变成力矩,由执行器来操纵阀门的杠杆,改变阀瓣窗口的面积,达到调节来自给水泵的给水流量的目的。阀门的流通能力决定于它的结构尺寸和工作条件,特别是阀门二侧的压力降和被调介质有关,如果提供给设计的压力降和实际运行工
In order to improve the level of automation of industrial boilers, a rotary feed water control valve was installed on the boiler water supply pipe to regulate the feed water flow of the boiler. When the valve is operated, the 0 ~ 10mA control signal input by the regulating instrument is converted to torque by the DKj electric actuator, the lever of the valve is manipulated by the actuator, the valve window area is changed, and the water supply from the water supply pump is adjusted The purpose of traffic. Valve flow capacity depends on its structure and working conditions, especially the pressure drop on both sides of the valve and the medium to be adjusted, if the pressure drop provided to the design and the actual operation