Seal valve switch electric machine

Abstract

The invention relates to a seal valve switch electric machine which is suitable for various seal valves. The seal valve switch electric machine comprises a shell body, a stator, a rotor, a rotor shaft, an insulation sleeve and a base. The insulation sleeve is arranged between the rotor and the stator and fixed on the base through bolts. A first seal ring is arranged between the insulation sleeve and the base. The upper end of the rotor shaft is installed on the top wall of the insulation sleeve, and the lower end of the rotor shaft stretched out of the base. The stator comprises stator iron cores and stator coils. Each stator coil is arranged on the corresponding stator magnetic pole in a sleeved mode. An annular groove which is used for placing seal rubber rings is formed in the bottom surface of the base. The shell body is fixed on the base through bolts. The seal valve switch electric machine has the advantages that due to the fact that the motive seal of the valve is replaced by the static seal of the valve, the seal effect is greatly improved; due to the fact that a switch of the valve is controlled by electric pulse, the flow of media in pipelines can be accurately controlled; and the seal valve switch electric machine is simple in structure and low in cost.

Description

technical field [0001] The invention relates to a sealing valve switching motor, which is suitable for sealing driving motors for various valves. Background technique [0002] At present, the valve shaft and the valve body of various valves are sealed by a sealing rubber ring. After the valve shaft extends out of the valve body, it is connected with a handwheel or an electric device. The number of layers, and exert a greater pressure on the sealing rubber ring, so that a greater braking force is generated on the valve shaft. When the valve is opened and closed, a greater driving force is required, which wastes energy; The greater the pressure applied, the faster the wear of the sealing rubber ring, which increases the frequency of replacement of the sealing rubber ring. Under such circumstances, leakage is prone to occur, causing vicious accidents and polluting the environment. The above-mentioned sealing measures between the valve body and the valve shaft also have the fo...

AI Technical Summary

Problems solved by technology

[0003] (1) Large valves must be equipped with a large and complex transmission mechanism, resulting in increased costs;

[0004] (2) The flow of the valve medium cannot be accurately controlled. When the valve needs to be rotated at a small angle, the above valve cannot be realized;

[0005] (3) When the valve is closed, the electric device has no self-locking ability, resulting in large flow fluctuations;

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