The difference between magnetic pump and centrifugal pump

Time:2023.03.23Browse:

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Magnetic pump is a type of centrifugal pump. Ordinary centrifugal pump motors directly drive the pump leaf wheels, or drive the impeller magnetic pump by a coupling to drive the impeller through magnetic force. No mechanical sealing, effectively prevent leakage. However, the magnetic pump can only be composed of a small -power magnetic transmission part consisting of internal and external magnetic rotors; the segregation segregates the internal magnetic rotor and medium with the external magnetic rotor; the external magnetic rotor is driven by the motor. Rotate and complete the non -contact torque transmission, so as to achieve the purpose of the driving pump. Set the internal magnetic rotor and medium to completely isolated from external magnetic, so the magnetic drive pump is different from other mechanical seal pumps. There is no sealing, only quiet seal, which fundamentally solves the running and risen of the mechanical seal pump in the process in the process. , Drop, omissions, have no leaks.

Magnetic pump, simple and compact structure. Using unique lubrication and cooling circuits, some process liquid self -lubricating and cooling transmission parts saves complicated custody systems such as cooling, rinse, and cold cold required for mechanical seal pumps. The design entrance pressure can be maximum to 30MPa, and it is difficult to do this for mechanical seal pumps. Compared with a centrifugal pump with mechanical sealing or fillers, the magnetic pump has the following advantages;


1. The pump axis changes from dynamic seal to a closed static seal, which completely avoids the leakage of the medium;


2. No need to lubricate and cool water independently, reduce energy consumption;


3. The transmission of the axis to a synchronous drag, no contact and friction. Small power consumption, high efficiency, and damping vibration reduction, which reduces the effects of motor vibration on the pump and the effect of air erosion vibration on the motor;


4. During overload, the internal and external magnetic rotors are relatively slippery, which has a protective effect on motors and pumps.


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