First. An overview of the magnetic pump

The magnetic pump is through the synchronous rotation of the internal and external magnetic rotor to realize the non contact transmission of power, and transform the dynamic seal into a static seal of the rotary volume pump. It is suitable for petroleum, chemical, pharmaceutical, smelting, electroplating, environmental protection, food, national defense and other industries. It is an ideal equipment for transporting flammable, explosive, volatile, toxic, rare and valuable liquids and various corrosive liquids. Stainless steel gear pumps can be used for corrosive or hygienic conditions. Magnetic pump shaft, the rotor is within a magnetic pump, isolated sets of completely closed to completely solve the “ leakage ” problems, eliminate all kinds of flammable, explosive, toxic and harmful media through the pump seal leakage security risks, effectively ensure the workers health and safety of. Magnetic pump is an ideal green chemical equipment, it will on the chemical industry, petroleum chemical industry, pharmaceutical and dye production enterprises increase savings, eliminate pollution, protect the environment, safety and labor protection and other aspects to bring high economic benefits and social benefits.

Magnetic pump is composed of pump, magnetic actuators, motors of three parts, the magnetic actuator is outside the magnetic rotor magnetic induction effect, because, by coupling the magnet force, the power transfer from a magnet to another magnet, constitute a non-contact torque transmission mechanism. Work through the motor (or motor reducer) driven by an external permanent magnet rotates, and coupling drive closed at Isolation Kit another group of permanent magnet and rotor for synchronous rotation, and no contact, no friction to external power is transferred to the internal rotor, drive pump rotor rotation. The pressure in the pump is borne by a reliable and static isolation sleeve. The isolation sleeve and the pump body form a closed sealed cavity, so that the medium in the pump is completely closed. Therefore, it can achieve static seal, high pressure and no leakage.

Two. Selection principle of magnetic pump

There are many kinds of magnetic pumps in the market. The key to the design of the whole device is to determine the usage and performance parameters of the magnetic pump and select the pump type. The selection principles of magnetic pump are as follows:

1, the pump for conveying corrosive medium requires corrosion resistant materials for convective components, such as fluoroplastic corrosion resistant pumps.

2, for transporting inflammable, explosive, toxic or valuable media, the shaft seal should be reliable or no leakage pump should be used, such as magnetic drive pump (no shaft seal, isolated magnetic indirect drive).

3, for the pump containing solid particle medium, wear resistant material is used for the convective components. When necessary, the shaft seal is flushed with clean liquid.

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