a magnetic pump

Abstract

A magnetic drive pump comprises a pump body (A). A front cavity, a middle cavity and a rear cavity are formed and spaced in the inner side of the pump body (A). An impeller (3) is arranged in the front cavity, and a permanent magnet rotor (5) is arranged in the rear cavity. The middle cavity is a closed water baffle cavity, an electromagnetic stator (4) matched with the permanent magnet rotor (5) is arranged in the middle cavity, and the permanent magnet rotor (5) is connected to the impeller (3) through a central shaft (6) penetrating the middle cavity. In the provided magnetic drive pump, a driving permanent magnet rotor in a magnetic drive mechanism of an existing magnetic drive pump is directly used as a rotor of a motor, and a driven permanent magnet rotor in the existing drive mechanism is replaced with the electromagnetic stator, so that the design concept of the existing magnetic drive pump is overturned completely, the complex internal and external magnetic drive framework of the existing magnetic drive pump is changed completely, the axial length and size of the general magnetic drive pump are greatly reduced, and the magnetic drive pump has a more compact overall structure, a smaller size and lighter weight, saves materials effectively and reduces the production and maintenance costs.

Description

technical field [0001] The invention relates to a magnetic pump. Background technique [0002] The structure of an ordinary water pump is to use a sliding water seal to isolate the inside and outside of the pump. Although the sliding water seal can play an isolation role in most cases, the sliding friction plate of the sliding water seal is easy to seep water, and the inside and outside of the pump are not completely isolated. When the water pump is used to extract toxic or corrosive liquid, a small amount of leakage will have a great impact on the water pump itself and the surrounding environment. The existing magnetic pump is aimed at the above problems. The specially designed and manufactured water pump is completely isolated from the inside and outside of the pump body. [0003] The structure of the existing magnetic pump is a pump in which a conventional motor 13 drives the pump shaft 15 to rotate by means of an intermediate magnetic transmission mechanism 14, and then...

AI Technical Summary

Problems solved by technology

[0004]Obviously, the biggest problem existing in the existing magnetic drive pump is that in order to completely isolate the inside and outside of the pump, a motor with almost the same size and weight as the motor is added, the structure is complex, and the cost The transmission mechanism is very high, and the maintenance and maintenance are troublesome, and because the motor 13 needs to use the intermediate body of the magnetic transmission mechanism 14 to transmit power, it is difficult to ensure that the magnetic transmission mechanism will not be damaged or cause problems during long-term operation

Therefore, the working reliability and service life of conventional magnetic pumps are difficult to be guaranteed, which often increases maintenance costs and affects production and normal work.

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