Working principle of magnetic pump

The magnetic pump consists of three parts: a pump, a magnetic actuator, and an electric motor. The key components are the magnetic actuator, which consists of an outer magnetic rotor, an inner magnetic rotor, and a non-magnetic isolation sleeve.

When the motor drives the external magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic materials and drive the internal magnetic rotor connected to the impeller.

The rotors rotate synchronously to realize contactless transmission of power and convert dynamic sealing into static sealing. Since the pump shaft and internal magnetic rotor are completely sealed by the pump body and isolation sleeve, the problem of "running, popping, dripping, and leaking" is completely solved, and the leakage of flammable, explosive, toxic, and harmful media through the pump seal in the refining and chemical industry is eliminated. potential safety hazards, effectively ensuring the physical and mental health and safe production of employees.

n pairs of magnets (n is an even number) are regularly arranged and assembled on the inner and outer magnetic rotors of the magnetic transmission, so that the magnet parts form a complete coupled magnetic system.

When the inner and outer magnetic poles are opposite to each other, that is, the displacement angle between the two magnetic poles is Φ = 0, the magnetic energy of the magnetic system is the lowest at this time; when the magnetic poles rotate to face the same pole, that is, the displacement angle between the two magnetic poles is Φ = 2π /n, at this time the magnetic energy of the magnetic system is maximum.

After the external force is removed, the magnetic force will return the magnet to the state with the lowest magnetic energy because the poles of the magnetic system repel each other. Then the magnet moves and drives the magnetic rotor to rotate.