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Self-decompression type check valve

A technology of check valve and self-relieving pressure, which is applied in the direction of control valves, valve devices, and functional valve types, etc., can solve the problems of unadjustable pressure relief, uncontrollable pressure relief, and automatic pressure relief of check valves, etc., to achieve The opening pressure is adjustable, the pressure relief effect is controllable, and the effect of reducing manufacturing costs

Active Publication Date: 2018-12-25
ANHUI TUNXI HIGH PRESSURE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a self-relieving check valve to solve the technical problems in the prior art that the check valve cannot automatically relieve pressure, the pressure relief is uncontrollable, and the pressure relief pressure cannot be adjusted.

Method used

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  • Self-decompression type check valve
  • Self-decompression type check valve

Examples

Experimental program
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Effect test

Embodiment 1

[0024] see figure 1 , this embodiment provides a self-pressure relief check valve, including a check valve body 1, a water inlet chamber 2, a water outlet chamber 3, and a first connecting chamber 2 and water outlet chamber 3 are arranged in the check valve body 1. A channel 4 and a non-return structure 5 for blocking and opening the first channel 4, and also includes a communication structure 6 connecting the water inlet chamber 2 and the water outlet chamber 3. The communication structure 6 only needs to be able to communicate with the water inlet chamber 2 and the water outlet chamber 3, it can be arranged on the outside of the check valve body 1 or can be opened on the check valve body 1;

[0025] The communication structure 6 is also equipped with a partition structure 7 that can block and open the medium to circulate in it. The partition structure 7 only needs to be able to achieve the purpose of partitioning the communication structure 6. The partition structure 7 can b...

Embodiment 2

[0031] The manufacturing cost of the equipment in the first embodiment is relatively high. Therefore, in order to reduce the manufacturing cost of the equipment and realize the stable operation of the equipment (when the equipment contains electronic equipment, it is very easy to be damaged, and it is very easy to be affected by external power sources, etc.), therefore, this The embodiment is to improve the equipment.

[0032] In this embodiment, the adjusting device is specifically an adjusting shaft 14, and the adjustable pressure control structure 8 is specifically composed of a first housing 10, a second housing 11, an elastic diaphragm 12, a spring 13, an adjusting shaft 14, and an output shaft 15. Both the first housing 10 and the second housing 11 have a hollow cavity structure with one end open, and the opening end of the first housing 10 and the opening end of the second housing 11 are connected by bolts 16 to form an integral cavity structure, and An elastic diaphrag...

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Abstract

The invention discloses a self-decompression type check valve, and relates to a check valve. The check valve comprises a check valve body. The check valve body is internally provided with a water inlet cavity, a water outlet cavity, a first channel for making the water inlet cavity communicated with the water outlet cavity, and a check structure for closing and opening the first channel, and further comprises a communicating structure for making the water inlet cavity communicated with the water outlet cavity. A blocking structure capable of starting and stopping the circulation of a medium inthe communicating structure is arranged on the communicating structure. The control end of the blocking structure is connected with an adjustable pressure control structure capable of controlling theblocking structure to be opened and closed. A medium flowing in the water outlet cavity flows in the adjustable pressure control structure through a guide pipe to exert pressure so as to control theadjustable pressure control structure to be opened and closed. When the pressure of the flowing medium reaches a set value, the adjustable pressure control structure is opened, and the blocking structure is controlled through the output end to be opened. The aims of being automatic in decompression, adjustable in decompression starting pressure and controllable in decompression effect of the device are realized, and the defect that a traditional device cannot be adjusted is avoided.

Description

technical field [0001] The invention relates to a check valve, in particular to an adjustable self-relieving check valve. Background technique [0002] Check valve refers to a kind of valve whose opening and closing parts are circular discs, which can block the reverse flow of medium by acting on its own weight and medium pressure. It is an automatic valve, also known as check valve, one-way valve, return valve or isolation valve. The disc movement mode is divided into lift type and swing type. The lift check valve is similar in structure to the globe valve, except that it lacks the valve stem to drive the disc. The medium flows in from the inlet port (lower side) and flows out from the outlet port (upper side). When the inlet pressure is greater than the sum of disc weight and its flow resistance, the valve is opened. Conversely, the valve is closed when the medium flows backwards. The swing check valve has an oblique disc that can rotate around the axis, and its worki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06
CPCF16K15/063
Inventor 吴尖斌吴志军王飞钱勇汪涛李煜
Owner ANHUI TUNXI HIGH PRESSURE VALVE
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