Normally-open one-way explosion-proof valve

A normally open, one-way technology, used in control valves, safety valves, balance valves, etc., can solve the problems of dust explosion, inability to block explosion shock wave and flame propagation, etc., to protect safety, reduce pressure loss, reduce The effect of pressure loss

Inactive Publication Date: 2017-06-13
江苏爵格工业集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, solve the problems in the prior art that the explosion caused by dust will not be able to cut off the propagation of the explosion shock wave and flame, and provide a normally open one-way explosion-proof valve that can cut off the explosion. The generated shock wave and flame propagate through the pipeline to the upstream of the dust removal equipment to prevent secondary explosions and protect the safety of personnel and equipment

Method used

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  • Normally-open one-way explosion-proof valve
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  • Normally-open one-way explosion-proof valve

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Embodiment Construction

[0028] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] Depend on Figure 1 to Figure 7 As shown, the present invention discloses a normally open one-way explosion-proof valve, which includes a valve body 8, a valve flap 6, a magnet 3, a deflector 10, and a pipe flange 9, and the valve flap 6 is connected to the guide The flow plate 10, the pipe flange 9 includes a pipe flange slope, and the valve disc 6 is attracted by the magnet 3 under normal conditions and is kept away from the pipe flange slope. When an explosion occurs, the The valve clack 6 is impacted by the explosion shock wave, pushing the deflector 10 and the valve clack 6, so that the valve clack 6 fits with the inclined surface of the pipe flange to form a mechanical seal, and the one-way explosion-proof valve is closed. The normally open one-way explosion-proof valve of the present invention can bl...

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Abstract

The invention discloses a normally-open one-way explosion-proof valve which is characterized by comprising a valve body, a valve clack, a magnet, a guide plate and a pipe flange; the valve clack is connected with the guide plate; the pipe flange comprises a pipe flange bevel; in a normal state, the valve clack is attracted to the magnet under the function of the magnet, and is away from the pipe flange bevel; and when an explosion occurs, the valve clack is subjected to impacting of explosion impact waves, the guide plate and the valve clack are pushed, the valve clack is attached to the pipe flange bevel, accordingly mechanical seal is formed, and the one-way explosion-proof valve is closed. The normally-open one-way explosion-proof valve can be used for preventing the impact waves and flames generated by the explosion from spreading, through a pipeline, towards the upper stream of dedusting equipment, a secondary explosion is avoided, and personnel and equipment safety is ensured.

Description

technical field [0001] The invention relates to the explosion-proof field of dust transportation, in particular to a normally open one-way explosion-proof valve. Background technique [0002] The dust generated inside large-scale manufacturing plants and buildings, especially the dust transportation process will cause potential safety hazards. Several major dust explosion accidents have occurred in my country, causing heavy casualties and property losses. With the development of the national economy, Dust explosion protection has been paid more and more attention, and some dust removal equipment has emerged as the times require. However, the dust inlet pipes on most of the existing dust removal equipment have no explosion isolation device during transmission. Once the dust explodes, it will not be able to isolate the explosion shock wave and flame propagation. [0003] Therefore, there is a need for a technology that can block the shock wave and flame generated by the explos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/36F16K15/03
CPCF16K17/363
Inventor 徐建军许京海
Owner 江苏爵格工业集团有限公司
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