调速泵任意三取二并列运行直控汽包水位

Parallel Operation of Arbitrary Two from Three Variable Speed Feedwater Pumps Directly Controls Water Level of Boil Drum

在国产２００ＭＷ机组上，通过ＰＭＫ单回路调节器组构成的自动调节系统，调节给水泵转速来直接控制锅炉汽包水位是一种有效的节能手段，可基本消除给水调整门的节流损失，降低给水泵电耗，经济效益明显。

On domestically made 200 MW generating units, through automatic regulation system composed of PMK single loop regulator group to regulate the speed of feedwater pumps to directly control the water level of boiler drum is an effective for saving energy, which can basically eliminate throtting loss in the feedwater regulating valve and reduce the power consumption of feedwater pump. The economical benefit is obvions.