Nanjing Forever Sewage Treatment Equipments Co., LTD. commonly used the following methods to regulate the flow of submersible pump: speed control, variable diameter adjustment, variable angle adjustment, throttle regulation.
1.Variable speed adjustment
Change the speed of the submersible pump, you can make the performance of the pump changes, so that the operating point of the pump changes, this method known as the speed of mediation.
Impeller after turning, the performance of the pump will change according to certain laws, so that the operating point of the pump to change. We turn the impeller to change the pump operating point method, known as the adjustable diameter.
3.Variable angle adjustment
Change the angle of the installation of the blade can make the performance of the pump changes, so as to achieve the purpose of changing pump operating point. This way of changing the operating point is called the variable angle adjustment of the pump.
For the water pipeline installation of the gate valve of the water pump device, the gate valve is small, in the pipeline to increase the local resistance, the pipeline characteristic curve becomes steep, its operating point along the pump Q-H curve to the upper left. The smaller the gate valve is closed, the greater the increased resistance, the smaller the flow becomes. This pass to close the small gate valve to change the pump working point method, known as the throttle adjustment or variable valve adjustment.