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High-pressure check valve

A technology of check valves and discs, which is applied in the direction of control valves, valve devices, and functional valve types, etc., can solve problems such as ineffective effects and weak pressure resistance, and achieve enhanced sealing, extended service life, and slow down friction effect

Inactive Publication Date: 2007-11-28
FANGXIA ENTERPRISE INFORMATION CONSULTING WUJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current high-pressure check valve is not strong in pressure resistance, and the effect is not very obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The invention belongs to the lift type high-pressure check valve, which adopts a combination of multiple springs to increase the anti-pressure effect, and uses rubber pads to protect the valve disc from falling back, and at the same time achieve the compactness of the storage cylinder port. In practical applications, the outside Only when the pressure is greater than the pressure inside can the valve disc be opened, so that the fluid medium enters the storage cylinder. When the external pressure weakens, due to the pressure in the storage cylinder and the anti-compression effect of the spring, the valve disc falls back to the storage cylinder mouth, against The rubber pads at both ends achieve a high sealing effect.

[0008] As a practical case, the present invention can be applied to an environment requiring high pressure for fluid medium, and its effect is 20% higher than that of traditional high-pressure check valves.

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PUM

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Abstract

The invention provides a check valve, comprising spring, valve clack, rubber bearing, metal plate and storage air cylinder. The metal plate is fixed near the port of storage air cylinder. The valve clack is set above the metal plate. There are two rubber bearings, which are set above two sides of valve clack. Multiple springs are added between the valve clack and metal plate for strengthening compressing resistance. Under the ordinary condition, springs are set against the valve clack so that the valve clack is attached the port of storage air cylinder tightly and closing action is achieved. Compared with current technology, the invention adopts springs to strengthen the compression resistance of high-pressure check valve and rubber bearing is used to lessen the friction between valve clack and storage air cylinder. The service life of valve clack is prolonged while the sealing is also improved.

Description

technical field [0001] The invention relates to a valve device, especially a check valve device. Background technique [0002] The opening and closing parts are opened or closed by the flow and force of the medium to prevent the backflow of the medium. The valve is called a check valve. Check valves belong to the category of automatic valves, and are mainly used on pipelines with one-way flow of medium, and only allow the medium to flow in one direction to prevent accidents. For some high-pressure gases, a high-pressure check valve must be installed to cope with it. The current high-pressure check valve is not strong in pressure resistance, and the effect is not very obvious. SUMMARY OF THE INVENTION [0003] The invention provides a high-pressure check valve device aiming at the one-way flow of high-pressure medium. [0004] In order to achieve the above object, the present invention takes the following measures to realize: [0005] A check valve, including a spring, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/00
Inventor 杨贻方
Owner FANGXIA ENTERPRISE INFORMATION CONSULTING WUJIANG