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Electrically adjusted self-compensating plug valve

A technology of automatic compensation and electric adjustment, which is applied to the cocks, valve details, valve devices, etc. of the cutting device, which can solve the problems of manual adjustment and repair, affecting the normal operation of the supply system, etc., and achieves simplified structure, simplified structure, and production cost. falling effect

Inactive Publication Date: 2012-12-19
ZHEJIANG HENGSEN IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the internal leakage of various plug valve cores is still relatively prominent. After leakage, manual adjustment and repair are often required, and even affect the normal operation of the entire supply system.

Method used

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  • Electrically adjusted self-compensating plug valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The valve body 10 is a three-way body, and the two ends of the straight-through are inlet and outlet, and are provided with external threads connecting the pipe; the center line of the bypass port is perpendicular to the center line of the straight-through pipe, and is arranged in the middle area of ​​the straight-through pipe; the center of the bypass port extends to The intersection of straight pipes is a cylindrical hole, and the orifice is provided with a stepped flange connected to the lower casing 15 of the driver. A large sealing ring is arranged at the step, and threaded holes for mounting screws 8 are provided on the flange. The driver lower case 15 is made of nylon plastic, and is generally in the shape of a cylindrical step. The center is provided with a through hole for installing the valve stem 7 , and the plane is provided with a screw 8 mounting hole connected to the valve body 10 . The lower plane of the driver lower case 15 is provided with a cylindrical...

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Abstract

The invention relates to an electrically adjusted self-compensating plug valve which comprises a check ring, a micro-switch, an upper driver shell, a motor, a cam, a circuit board, a valve rod, a bolt, a big sealing ring, a valve body, a valve chip, a spring, a cylinder pin, a power line, a lower driver shell, a small sealing ring and a gasket. A floating type valve core structure is adopted by the electrically adjusted self-compensating plug valve; the valve chip is made of a nylon plastic soft substrate material; a fluid backpressure is utilized as a locking force for sealing the valve; the traditional method for increasing the locking force for sealing a conical surface by increasing an axial force of the valve core is replaced; the universal key technologies of the valve, such as, the sealing property of the plug valve, the self-compensating value after the sealing surface is abraded, the switching torsion moment, and the like, are greatly increased; the structure of a sealing part of the valve core is simplified; the manufacturing and assembling technologies are simple; and the production cost is lowered.

Description

technical field [0001] The invention relates to an electric adjustment and automatic compensation plug valve. technical background [0002] There are many types of plug valves, and their application fields are very wide. At present, the structure of the valve core is mostly conical. Its advantage is that it has a certain wear compensation space, can prolong the service life, and has better sealing performance. However, the tapered seal has high requirements on the processing of the parts, and the axial locking force of the valve core needs to be increased, so the torque when the valve is opened and closed will also increase accordingly. Plug valves can be subdivided according to the applicable medium, control form, and special working conditions. For example, plug valves made of corrosion-resistant materials, plug valves with different control forms such as manual, electric, and pneumatic, and plug valves with various names such as multi-channel, pressure resistance, and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/04F16K5/08F16K31/04
Inventor 何永水黄幼华
Owner ZHEJIANG HENGSEN IND GROUP
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