The working principle and structure of the magnetic pump is introduced

Also called magnetic drive water pump, magnetic pump magnetic pump working principle: when the motor drives the outer magnetic rotor, the magnetic field penetration of sleeve, drive the inner magnetic rotor, which is connected with the impeller synchronous rotation, shaft power contactless synchronous transmission. Easy to leak the dynamic sealing structure into zero leakage static sealing structure. Magnetic transmission can be divided into synchronous or asynchronous design. Most of the magnetic pump adopts synchronous design. United motor by the external coupling and the outer magnetic steel, within the impeller and magnet steel together. Within the outer magnetic steel and is equipped with fully sealed spacer between magnetic steel, separated from the inner and outer magnetic steel completely, make the magnetic steel in medium, the motor shaft by magnetic steel synchronization between the poles of the suction directly to drive the impeller rotation. Asynchronous design of magnetic transmission, also called ring magnetic torque transmission. With squirrel cage ring to replace the magnet steel structure of the torque, torque ring under the appeal of outer magnetic steel to lower the speed of rotation. Due to no inner magnetic steel, so its use temperature is higher than that of synchronous magnetic transmission. Magnetic pump is mainly composed of pump body, impeller, magnetic coupling, isolation, outside the magnetic cylinder, support, motor, base and other parts. shell: also known as a pump cavity, it is the main part of the water pump, the support fixed effect, are important parts of the storage of liquid to complete delivery. Impeller: is a major part of the transmission fluid, magnetic pump impeller is divided into two forms, one is a couplet of impeller, the impeller and the inner magnetic rotor couplet. Another kind is a single impeller, the impeller through the nut is fixed on the water pump shaft. On the impeller blade play a major role, the impeller through static balancing experiments before assembly. Impeller on the inside and outside for smooth surface to reduce friction loss of water flow, when the motor drives the outer magnetic cylinder rotate magnetic field penetration of sleeve, the drive is connected with the impeller made the inner magnetic rotor of synchronous rotation, so as to complete delivery. Magnetic coupler: n to magnet ( N is even) Regularly arrange assembly on the magnetic actuator on the internal and external magnetic rotor, make each other of part of the magnets complete coupling magnetic system. Magnetic coupling structure, magnetic circuit design, and its various parts of the material is related to the reliability of the magnetic water pump, magnetic transmission efficiency and service life. Magnetic coupler shall, in accordance with the provisions of the conditions should not appear to take off the coupling and demagnetization phenomenon. Of sleeve: also called static seal, is an important factor of magnetic pump leak of sleeve. In a sinusoidal alternating magnetic field of sleeve, on cross section perpendicular to the direction of magnetic field lines induced eddy current is converted into heat. Choose high resistivity, high strength of non-metallic materials of sleeve, in terms of reduce the eddy current effect is very obvious. Magnetic cylinder: external magnetic steel is also used adhesive firmly fixed on the outer magnetic steel ring. In order to prevent the assembly when the damage of the outer magnetic steel, the outer magnetic steel inner surface should be covered with coating. High speed motor through outside magnetic cylinder, through isolation cover, drive the magnetic rotor drives the impeller to complete delivery.
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