Low-pressure small-caliber safety relief valve

A small-diameter, pressure relief valve technology, applied in the field of safety valves, can solve the problems of poor discharge pressure stability, low action sensitivity, complex structure, etc., and achieve the effects of stable discharge pressure, high opening and closing sensitivity, and small volume

Pending Publication Date: 2022-02-08
浙江迎日阀门制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing spring-type safety valve is used in a small-diameter, low-pressure pipeline, it has a large volume, a complicated structure, poor discharge pressure stability, and low action sensitivity.

Method used

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  • Low-pressure small-caliber safety relief valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Such as figure 1 The low-pressure small-diameter safety pressure relief valve shown includes a valve body 1 and a valve cover 2. The valve cover 2 is installed on the upper end of the inner cavity of the valve body 1 by a flange. The inner cavity of the valve body 1 is connected to the inlet channel 14, the outlet channel and the pressure relief valve. The channel 12, the inlet channel 14 coincides with the center line of the pressure relief channel 12, and the center line of the outlet channel and the inlet channel 14 are perpendicular to each other. A spring pressure setting device is arranged between the upper end surface of the diaphragm 4 and the valve cover 2; the spring pressure setting device is composed of a spring 6 and an adjusting stud 7, the adjusting stud 7 is threaded on the upper end of the valve cover 2, and the spring 6 is installed on the Between the adjusting stud 7 and the sealing diaphragm 4, a spring seat 8 is set between the upper end of the spri...

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PUM

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Abstract

The invention relates to a low-pressure small-caliber safety pressure relief valve which comprises a valve body and a valve cover. A sealing diaphragm is installed between the valve body and the valve cover, a spring pressure setting device is arranged between the valve cover and the sealing diaphragm, and a plunger type pressure relief control device is arranged below the sealing diaphragm. Under normal pressure, the spring pushes the sealing diaphragm to move downwards to drive a plunger to be matched with the sealing surface of the port of a pressure relief channel; when over-pressure occurs, medium pressure pushes the sealing diaphragm to move upwards, the plunger is driven to be separated from the pressure relief channel, and pressure relief is conducted. The valve has the advantages of small size, simple structure, good pressure discharge stability, high opening and closing sensitivity and the like.

Description

technical field [0001] The invention belongs to the field of valves, in particular to a safety valve. The invention is suitable for the safety valve of small diameter and low pressure oxygen pipeline. Background technique [0002] The safety valve is used in the pipeline to control the pressure of the medium to protect the safety of the pipeline equipment. The spring type safety valve is a more common structure. However, when the existing spring-type safety valve is used in small-diameter and low-pressure pipelines, it has a large volume, a relatively complicated structure, poor discharge pressure stability, and low action sensitivity. Contents of the invention [0003] Aiming at the shortcomings of the prior art, the present invention provides a low-pressure small-diameter safety relief valve with small volume, simple structure, stable discharge pressure and sensitive opening and closing. [0004] The technical solution of the present invention includes a valve body and...

Claims

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Application Information

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IPC IPC(8): F16K17/06F16K17/164
CPCF16K17/0413F16K17/06F16K17/164
Inventor 汤建和廖秀和徐圣波陈苗苗
Owner 浙江迎日阀门制造有限公司
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