Pressure relief explosion-proof valve

An explosion-proof valve and pressure relief technology, which is applied in safety valves, balance valves, valve devices, etc., can solve problems such as limited application range, inconvenient use, and limited installation methods, so as to achieve a wide range of applications, avoid secondary explosions, and prevent air pollution. entry effect
CN103244722BActive Publication Date: 2015-12-02XIECHANG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XIECHANG ENVIRONMENTAL PROTECTION TECH CO LTD
Publication Date
2015-12-02

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Patent Text Reader

Abstract

The invention relates to a pressure-relief anti-explosion valve comprising a flange, a sealing cap and an explosion door. The flange sealed with a device having explosion hazards is fixedly connected with the same, the sealing cap is sealed with the flange, and the explosion door is installed inside the sealing cap and sealed to the periphery of a center hole of the flange. The explosion door comprises at least one guide rail, an explosion door body and a spring. The guide rails vertical to the flange are connected between the sealing cap and the flange, the explosion door body is used for relieving pressure when the device is popped open due to large pressure inside, the spring is used for connecting the explosion door body and the periphery of the center hole of the flange in a sealed manner, and the explosion door body is slidably connected with the guide rails and sealed with the periphery of the center hole of the flange. Since the explosion door body and the flange are connected in a sealed manner by the spring, when the pressure inside the device is large, the explosion door body is restored rapidly after being popped open to prevent air from entering, and a secondary explosion is avoided; and the pressure-relief anti-explosion valve is pressed against the flange relying on elastic force of the spring, so can be used repeatedly on the device in any manner of installation, and is wide in application.
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Description

technical field

[0001] The invention relates to the explosion-proof field, in particular to a pressure relief explosion-proof valve. Background technique

[0002] Existing explosion-proof valve has two kinds, and a kind of is to make explosion-proof door cover on air outlet by gravity, and another kind is to arrange explosion-proof sheet at air outlet. Because the explosion-proof door of the first type of explosion-proof valve is sealed on the air outlet by gravity, its installation method will be limited, and its application range is relatively limited; while the second type of explosion-proof valve is a one-time product because the explosion-proof disc is a one-time product. After the pressure is released, the explosion-proof disc needs to be replaced, which is inconvenient to use. Contents of the invention

[0003] The purpose of the present invention is to provide a pressure relief explosion-proof valve which can be used repeatedly and widely used.

[0004] In order ...

Claims

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