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One-way explosive-proof valve

An explosion-proof, one-way technology, used in valve details, control valves, safety valves, etc., can solve problems such as inability to reach and protect, and achieve the effect of avoiding secondary explosions, increasing the area of ​​action, and ensuring equipment safety.

Pending Publication Date: 2017-08-18
江苏爵格工业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing isolation devices for dust explosion protection cannot provide good protection in working conditions with high dust explosion levels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Figure 1-4 The one-way explosion-proof valve according to an embodiment of the present invention is schematically shown. Such as Figure 1-5 As shown, the one-way explosion-proof valve includes a valve housing 1, a valve disc 2, a proximity switch 3, and a latch 4.

[0025] Both ends of the valve housing 1 are provided with an inlet flange 111 and an outlet flange 112 respectively. The valve housing 1 is provided with a cavity for containing the valve flap 2. The valve housing 1 includes a valve body 11 and a valve cover 12. The top and both ends of the valve body 11 are open. The openings at both ends facilitate the flow of medium and gas through the valve body 11. The opening at one end of the valve body 11 is connected with the inlet flange 111, and the opening at the other end of the valve body 11 is connected with the outlet flange 112. The flanges at both ends of the valve body 11 function as a connection, so that the one-way explosion-proof valve can be connec...

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PUM

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Abstract

The invention discloses a one-way explosive-proof valve. The one-way explosive-proof valve comprises a valve shell, a valve clack, an approach switch and a bolt lock. The two ends of the valve shell are provided with an inlet flange and an outlet flange correspondingly, the valve shell is internally provided with a cavity, the valve clack is located in the cavity, and the valve clack is in rotation connection with one end of the valve shell; when the valve is in the non-work state or explosive-proof state, the inner surface of the valve clack is attached to the end face of the end, located in the cavity, of the inlet flange, the shaft is provided with a locking rod located on the valve shell, and the bottom of the valve shell is provided with the approach switch for detecting the position of the valve clack; the bolt lock is connected with the outer side wall of one end of the valve shell, the bolt lock is internally provided with a lock rod for blocking the locking rod, the approach switch is connected with the bolt lock, and the approach switch controls the lock rod to stretch out; and the approach switch gives out a signal when sensing that the valve clack reaches the designated position, the lock rod of the bolt lock is bounced out to block the locking rod. Secondary explosion is prevented, it is prevented that explosion shock waves and flames return to a pipe system again, and personnel safety and equipment safety of the upstream of the explosive-proof valve are guaranteed.

Description

Technical field [0001] The invention belongs to the field of isolation devices for dust explosion prevention, and more specifically relates to a one-way explosion-proof valve for preventing secondary dust explosion. Background technique [0002] With the development of the national economy, dust explosion protection has received more and more attention. There have been several major dust explosion accidents in my country, which have caused heavy casualties and property losses. Most of the existing isolation devices for dust explosion protection cannot achieve good protection in working conditions with higher dust explosion levels. Summary of the invention [0003] The purpose of the present invention is to provide a one-way explosion-proof valve which can better prevent the secondary explosion of powder. [0004] According to one aspect of the present invention, there is provided a one-way explosion-proof valve, including [0005] A valve housing, an inlet flange and an outlet flang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03F16K17/36F16K27/04F16K27/12F16K37/00
CPCF16K15/03F16K17/363F16K27/044F16K27/12F16K37/0025
Inventor 徐建军许京海
Owner 江苏爵格工业集团有限公司
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