As a kind of positive displacement rotary pump, the rotary-rotary pump is widely used in the process of all walks of life due to its unique working principle. The materials suitable for conveying are various. Regardless of whether it is clean water, sewage, chemical raw materials, beverages, dairy products, sweets, cosmetics, etc., it can be said that as long as it is a liquid material, whether it is water or difficult-to-flow gels, etc., it can be transported using a rotor pump. The pump is a truly universal pump.

Although the rotary pump has unmatched conveying performance, if the power matching is unreasonable, the superior pumping performance of the rotary pump can not be exerted. Therefore, in the process of selecting the rotor pump, selecting a power mechanism that meets the material conveying characteristics and requirements for the rotor pump is the most important part of the rotor pump in the selection process. The power configuration of our commonly used rotor pumps generally has the following options:

1. Manual speed regulation:

This type of rotor pump power transmission mechanism is equipped with a planetary friction wheel speed reduction system. The rotor pump equipped with such a system has a wide range of adaptation, simple operation and maintenance, but the disadvantages are also obvious, is due to planetary friction The speed regulation lower limit of the wheel speed control system is relatively large, the speed reduction is more difficult, and the torque is smaller, and it is generally suitable for conveying a medium with a relatively low viscosity. However, if used in conjunction with a gear reducer, the output torque can be greatly increased to meet the delivery needs of larger viscosity media.

2. Frequency control type:

The power transmission mechanism of the variable frequency speed-regulating type rotary pump is equipped with a hard gear fixed speed ratio transmission reducer and a variable frequency motor that can change the speed by changing the frequency. This structure configuration can realize the automatic adjustment of the speed through the inverter, which means that the flow can be adjusted steplessly. Its advantages are high degree of automation and large output torque. The disadvantage is that there is a need to additionally match a frequency converter and there will be some additional costs. However, with the relatively stable quality of domestic inverters, the prices of domestic inverters are still relatively attractive. This configuration can be said to be an ideal power configuration of the rotary pump.

3. Fixed speed output type:

The rotor pump of this configuration is generally used in places where the control of the process flow is not high, and it is only necessary to transport the medium that needs to be conveyed within a certain period of time, and it is used when there is no strict requirement on the process details. The general configuration is the fixed speed ratio reducer and the ordinary motor, but also has the configuration motor and the belt deceleration system. This configuration has the advantages of simple structure, almost no operation and maintenance-free. In a certain process flow, this type of configured rotor pump is also a better choice.

Of course, in addition to the above configuration, there are many other configurations depending on the use environment, such as DC electromagnetic speed control structure transmission, pneumatic transmission mechanism, and explosion-proof motor. However, the most widely used is the above three configurations. The frequency conversion control structure is strongly recommended because of its high degree of automation, wide application range, and large torque, making it the most cost-effective choice.