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Dust backpressure explosive-proof valve

A back pressure, explosion-proof technology, applied in the direction of control valve, safety valve, balance valve, etc., can solve problems such as power explosion, and achieve the effect of increasing safety, improving effect, and reducing sealing prevention.

Inactive Publication Date: 2017-03-08
闫正伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, if only the explosion-proof plate is used to vent the explosion, and the explosion isolation is not done well, the flame and pressure wave generated by the explosion will be transmitted to other connected equipment through the connected pipeline, causing a secondary or even more powerful explosion.

Method used

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  • Dust backpressure explosive-proof valve
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  • Dust backpressure explosive-proof valve

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Embodiment Construction

[0015] The present invention is described in further detail below by embodiment, and embodiment is only used for illustrating the present invention, does not limit the scope of the present invention.

[0016] Such as figure 1 , 3 1. A dust back pressure explosion-proof valve shown in 4 includes a valve body 1 and a valve disc 2. The valve body 1 is integrally fixed with an inclined end face 22. The integral fixation has a better flameproof effect than other fixing methods. The valve disc 2 Matched with the inclined end surface 22, the valve disc 2 can cover the inclined end surface 22. The valve disc 2 is fixedly connected with the valve disc rocker 3 through the first bolt 4. The upper end of the valve disc rocker 3 is fixed with a positioning shaft 8, and the positioning shaft 8 By rotating the rocker 3 to control the rotation of the disc rocker, at least one end of the positioning shaft 8 can be rotatably installed on the side of the valve body. After the contact end is se...

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Abstract

The invention relates to the field of explosive-proof equipment, in particular to a dust backpressure explosive-proof valve. The dust backpressure explosive-proof valve comprises a valve body and a valve disk. An inclined end face is integrally and fixedly installed in the valve body, the valve disk is fixedly connected with a valve disk rocker, a positioning shaft is fixedly arranged at the upper end of the valve disk rocker, a limiting plate is fixedly installed on one side of the inclined end face, and the positioning shaft is connected with a transmission device installed outside the valve body. A valve cover is fixedly connected with the valve body, and a sealing gasket is installed at the position, making contact with the valve body, on the valve cover. A detonation or an explosion occurs on the outlet side of the explosive-proof valve, as the backpressure is increased, air flow flows in the reverse direction, the backpressure valve disk is closed, the pressure wave produced by the explosion will enable the valve disk to be closed to the inclined end face on the inlet side, the explosion is prevented from being transmitted to an upstream pipeline and equipment, and an isolation effect is achieved.

Description

technical field [0001] The invention relates to the field of explosion-proof equipment, in particular to a dust back pressure explosion-proof valve. Background technique [0002] With the development of modern industry, the potential danger of dust explosion has greatly increased. In actual production, if the explosion-proof plate is only used to vent the explosion, and the explosion isolation is not done well, the flame and pressure wave generated by the explosion will be transmitted to other connected equipment through the connected pipeline, causing a secondary or even more powerful explosion. Explosion-proof technology can prevent the explosion from propagating from the initial position to other process units, avoid the occurrence of "secondary" explosion or system explosion accidents, and reduce explosion disasters. The dust explosion isolation valve is used as an original passive device for occasions where dust explosions are likely to occur. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/00F16K15/03
CPCF16K17/00F16K15/03
Inventor 闫正伟
Owner 闫正伟
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