How to adjust the performance of vertical axial flow pump

.Vertical axial flow pump performance adjustment, usually what method? Here to understand the next together.
1, variable speed adjustment:vertical axial flow pump is working at a certain speed, and at a certain speed to get the corresponding flow, head, power and efficiency. When the speed changes, its performance parameters are also corresponding changes, so as to achieve the purpose of regulation. If the axial flow pump is powered by a diesel engine or a gasoline engine, it can change the size of the accelerator to change the speed. If the axial flow pump is connected with the power machine is a delta belt or flat belt indirect transmission device, you can change the transmission pulley diameter to change, Wheel or driven wheel can be, the purpose of foot to change the transmission ratio. Variable speed pump performance is more economical, wide range of applications, all agricultural submersible pumps can be used.
2, variable angle adjustment: from the structure point of view, axial pump impeller has a huge hub, easy to install adjustable angle of the blade. When the blade installation angle changes, the blade of the water lift also changed, thus changing the performance of the pump, which is the axial flow pump variable angle adjustment. As the blade mounting angle increases or becomes smaller, the flow rate of the axial flow pump, the head, the power changes, but the highest point of efficiency does not change, it is very advantageous to the axial pump performance adjustment.