Since the balance of horizontal multi-stage centrifugal pump out the water flow regulation of several commonly used methods

Self balancing horizontal multi-stage centrifugal pump out the water flow regulation method are many, more common has the following kinds:

it is a variable flow regulation method

by changing the balance of horizontal multi-stage centrifugal pump outlet pipe gate valve open degree to regulate traffic on the road. Its advantage is to guarantee the pump water yield and water well balanced, avoid smoke descending ambassador surface water inlet of the pump, causing forced outage, the disadvantage is that would cause the pump vibration, shorten the service life of equipment. Therefore, under normal circumstances should not take this method to adjust flow. Variable speed regulation method

by lowering ( Higher) The speed of the pump to regulate traffic. Change the water pump speed, can make some changes to the pump performance, to make the change of water pump point, this method is called variable speed adjustment. The change of the water pump rotation speed, can be different by changing the diameter of the water pump pulley or change the speed of the engine to realize it is important to note that the pump speed should not be decreased more than 30% of the rated speed, increase should be controlled within 10% of the rated speed. In general should be preferred. Three is the variable diameter adjustment method

is the appropriate cutting impeller diameter smaller, in order to reduce the capacity and head of the pump. After turning impeller, pump performance will change according to certain rules, so that the pump point change. We change the cutting impeller pump working point method, called a variable diameter. Four is the variable voltage regulating method

is the self balancing multistage centrifugal water pump by using the method of reducing impeller series, to reduce the capacity and head of the pump, improve the efficiency of the device, so as to achieve the goal of economic operation. Five is variable Angle adjustment method

change the blade installation Angle change can make the performance of the pump, so as to achieve the aim of changing the point for the pump working condition. The way the change point is called the pump variable Angle adjustment. Six is throttling

for water pipeline installation of gate valve of the pump device, the gate valve off hours, increased the local resistance in the pipeline, the pipeline characteristic curve steepening, the point Q - along the water water pump H curve move above to the left. The smaller the gate locked, resistance increases, the greater the flow becomes smaller. This pass the small gate valve to change the pump point method, called the throttling adjustment or valve adjustment.

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