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Explosion arrestment flap valve

A flap valve and explosion-proof technology, which is applied to valve details, safety valves, balance valves, etc., can solve the problems of being easily deformed by impact, increasing equipment maintenance costs, and poor sealing effects, so as to prolong the service life and benefit Action and sealing, close contact effect

Pending Publication Date: 2018-12-18
河北锐智纳米科技有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide an explosion-proof flap valve to solve the problem that the explosion-proof flap is set in a flat shape and is easy to be impacted and deformed, which increases the maintenance cost of the equipment and the gap between the explosion-proof flap and the dust delivery port. The problem of poor sealing effect due to the setting of the sealing ring structure

Method used

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Embodiment Construction

[0027] The present invention will be further described in detail in conjunction with specific inventions below.

[0028] A flameproof flap valve, combined with Figure 1 to Figure 8 As shown, it includes a valve body 1, an air inlet 5, an air outlet 4, and an explosion-proof mechanism.

[0029] The valve body 1 includes a valve housing 2 and a valve cover 3 . The valve housing 2 is a rectangular upper part and a semi-cylindrical lower part. The top of the valve housing 2 is provided with a rectangular opening, and is fixedly provided with an outer edge. The top array of the outer edge is provided with a plurality of threaded holes. The bonnet 3 is arranged above the valve casing 2 for sealing the valve body 1. The bonnet 3 is provided with a threaded hole corresponding to the threaded hole on the top of the valve casing 2. The bonnet 3 and the valve casing 2 are fixedly connected by bolts. The bottom end of the valve casing 2 is fixedly provided with two supports 8, and the ...

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Abstract

The invention discloses an explosion arrestment flap valve. The explosion arrestment flap valve comprises a valve body. The valve body comprises a valve shell and a valve deck. The bottom end of the valve deck is fixedly provided with support seats. The two ends of the valve deck are provided with a gas inlet and a gas outlet correspondingly. An explosion arrestment mechanism is arranged in the valve body and comprises a blocking pipeline. An explosion arrestment flap is arranged at a pipe opening, located in the valve body, of the blocking pipeline. An overturning mechanism is arranged on theupper side of the blocking pipeline. The pipeline opening, matched with the explosion arrestment flap, of the blocking pipeline is arranged to be of an inclined round face structure. The circumferential face, facing the explosion arrestment flap, of the pipeline opening of the blocking pipeline is provided with an annular seal rubber ring groove and an annular seal rubber ring embedded into the annular seal rubber ring groove. According to the explosion arrestment flap valve, in the manner that the explosion arrestment flap is arranged to be a concave plate, the middle portion of the explosion arrestment flap is not prone to deformation under the action of impact force, and the service life of the explosion arrestment flap is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of dust explosion-proof isolating devices, in particular to an explosion-proof flap valve, which is applied to railway bridge decks. Background technique [0002] With the development of modern industry, the potential danger of dust explosion has greatly increased. Dust explosion is prone to occur in food grade agricultural product dust, metal dust, coal powder, pharmaceutical engineering powder, petrochemical dust, textile industrial fiber, wood processing and other industries. In order to prevent fires and bandaging accidents, relevant state departments require these workplaces to take strict explosion-proof measures. Explosion-proof technology can prevent the explosion from propagating from the initial position to other process units, avoid secondary explosion or system explosion accidents, and reduce explosion disasters. [0003] The explosion-proof valve is a popular explosion-proof device in the world...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/36F16K27/02F16K37/00
CPCF16K17/363F16K27/0209F16K37/0083
Inventor 王宪钦张永春
Owner 河北锐智纳米科技有限公司
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