You should also know the knowledge of magnetic pump

Magnetic drive pump is a new centrifugal chemical process pump based on the centrifugal pump, which adopts magnetic coupling to realize non-contact transmission of torque, no shaft seal, full seal, no leakage, corrosion resistance, and no pollution.

Below is a list of contents

1. Dielectric principle of magnetic pump

2. Application scope and transmission medium of magnetic pump

3. Transmission characteristics and transmission mode of magnetic pump

Dielectric principle of magnetic pump

1. Magnetic drive pump (referred to as magnetic pump for short) is usually composed of the motor, strong coupler, and centrifugal pump. Its main feature is to use a magnetic coupler to transmit power. When the motor drives the outer magnetic rotor of the magnetic coupler to rotate, the magnetic force line passes through the gap and isolation sleeve and acts on the inner magnetic rotor to make the pump rotor rotate synchronously with the motor and transmit torque without mechanical contact. At the power input end of the pump shaft, Because the liquid is enclosed in a static isolation sleeve, there is no dynamic seal, so there is no leakage.

2. The magnetic drive pump adopts advanced technical design and follows the high efficiency and reliability of the original centrifugal pump in terms of water power. It cancels the traditional mechanical sealing device and changes the rigid connection between the motor and the pump into a contactless flexible connection, which fundamentally eliminates the leakage of the shaft seal.

Application scope and transmission medium of magnetic pump

Magnetic driven centrifugal chemical process pump is widely used in the production process of chemical, petrochemical, metallurgical, pharmaceutical, printing and dyeing, papermaking, electroplating, and other enterprises to transport corrosive or nonpolluting liquids with a relative density below 1.84 and viscosity similar to water and free of iron filings and solid particles. It is especially suitable for the transportation of flammable, explosive, volatile liquids and toxic and valuable media.

Transmission characteristics and transmission mode of magnetic pump

1. Transmission characteristics

The magnetic drive of the magnetic pump adopts the pull-push dense cylindrical structure. Under the same magnetic volume, the torque it can transmit is about 1.5 times that of the decentralized magnetic structure. This structure maximizes the utilization of magnetic energy. At the same time, the weight of the inner and outer rotors is greatly reduced, reducing the influence of the weight and imbalance of the rotor system on the sliding bearing.

2. Transmission form

The magnetic drive has two structural forms.

(1) Disc magnetic coupling

The disk-shaped magnetic coupling is composed of two face-to-face annular magnets and an isolation sleeve in the middle. The large axial force will be generated between the two magnets. Measures to balance the axial force and thicken the isolation sleeve must be adopted, otherwise, the isolation sleeve will be deformed and damaged.

(2) Cylindrical magnetic coupling

The cylindrical magnetic coupling has no axial force. The cylindrical magnetic coupling is composed of inner and outer rotors. The matrix of the inner and outer rotors is made of ordinary steel that can be magnetized. A plurality of permanent magnets is closely arranged in the parallel axis direction of the outer circular surface of the inner rotor and the inner circular surface of the outer rotor to form a "combined pull-push magnetic circuit". Theory and practice have proved that this cylindrical "combined pull-push magnetic circuit" can obtain large transmission torque per unit magnetic volume under the same magnetic circuit parameters, which is about 4 times that of the traditional dispersed magnetic circuit. The magnetic pump adopts this kind of cylindrical "combined pull and pushes magnetic circuit"

Taicang magnetic pump Co., Ltd. was born in 1979. It cooperated with Shanghai Chemical Design Institute to form a unique core research project with magnetic drive pump, and achieved great success. It has become the first company in China to comprehensively design and produce magnetic drive pump. Today, Taicang magnetic pump Co., Ltd. has become a leading manufacturer of magnetic drive pumps in China, with many patents and 12 utility model patents.