利用变更泵轴转速来调节离心式泵的运行工况的方法,算是最理想的调节方法了。因为,利用闸阀调节法,会产生很大的调节阻力损失,不够经济,且难以实现自控调节操作;减小离心式泵叶轮直径的调节法,虽然可免除调节阻力损失之弊,但是,这种调节仅为一次性的调节,泵送系统工况改变,叶轮直径又要随之变更,适应性差.而变更泵轴转速调节法,不但电耗省,而且工况调节可随生产需要,实现无级调节,所以适应范围广,另外,还易于实现自控调节操 The use of changing the pump shaft speed to adjust centrifugal pump operating conditions, be considered the most ideal method of adjustment. Because the use of gate valve regulation method, will have a great loss of regulation resistance, not economical, and difficult to achieve automatic adjustment operation; to reduce centrifugal pump impeller diameter adjustment method, although the adjustment of resistance loss can be removed, but this Adjustment is only a one-time adjustment, pump system conditions change, but also to change the impeller diameter, poor adaptability.While changing the pump shaft speed regulation method, not only power consumption, and condition adjustment can be produced with the need to achieve no Level adjustment, so adapt to a wide range, in addition, also easy to achieve self-regulation operation