Magnetic pump (magnetic drive pump) is mainly composed of several parts such as pump head, magnetic drive, motor, and connection base plate. The magnetic drive of the magnetic pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic materials, and drive the inner magnetic rotor connected to the impeller to work. Synchronous rotation realizes the non-contact synchronous transmission of power, and converts the easily leaking dynamic seal structure into a zero-leakage static seal structure. N pairs of magnets (n is an even number) are assembled on the inner and outer magnetic rotors of the magnetic actuator in a regular arrangement, so that the magnet parts form a complete coupling magnetic system. When the inner and outer magnetic poles are opposite each other, that is, the displacement angle between the two magnetic poles is Φ=0, the magnetic energy of the magnetic system is low at this time; when the magnetic poles rotate to the same pole, the displacement angle between the two magnetic poles is Φ=2π /n, the magnetic energy of the magnetic system is large at this time. After removing the external force, since the magnetic poles of the magnetic system repel each other, the magnetic force will restore the magnet to a state of low magnetic energy. Then the magnets move, driving the magnetic rotor to rotate.

Magnetic pump is a branch of the chemical pump field, which can transport chlor-alkali, chlorobenzene, chemical conversion foil, pickling, pesticide, medicine, and other industries with strong corrosive media. Magnetic pump is a new product that applies the working principle of permanent magnet coupling to centrifugal pump.