No major types of leakage pump and structure

No leakage pump including shielding pump, magnetic pump, positive displacement diaphragm pump, electromagnetic pump and so on. According to engineering practice, this article describes the non-leakage pump shielding pump and magnetic pump, foreign literature often referred to as the shaft seal pump. Shielded pump leak-free pump, shielded pump is widely used. The shield pump is mainly composed of a pump body, an impeller, a stator, a rotor, front and rear bearings, and a thrust plate. The motor and the pump are integrated. The shield and the rotor are separated by a shielding sleeve made of non-magnetic thin-walled material. The rotor is supported by the front and rear bearings Immersed in the transport medium. After the stator windings are energized, the electromagnetic energy can be transmitted through the shielding sleeve to drive the rotor to rotate, which in turn drives the impeller to transport the medium. Magnetic pump Magnetic pump is installed by the pump shaft and the motor shaft, the magnetic force generated by the rotor, the motor torque is transmitted to the pump shaft, and then drive the impeller to transport medium. When the motor rotates, the outer magnet rotor attracts each other through the isolation sleeve and the inner magnet rotor to drive the pump shaft and the impeller to rotate. The same number of magnet blocks inside and outside the rotor, forming a one-to-one relationship between the poles, the two synchronous rotation. As the isolation sleeve will be completely closed shaft, so as to achieve no shaft seal, no leakage.

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