CN210977562U - Coal mine gas explosion-proof device - Google Patents

Abstract

The utility model discloses a coal mine gas explosion-proof device, which relates to the explosion-proof safety device field of coal mine gas pumping and discharging underground gas, and concretely comprises a tank body, wherein one side of the tank body is provided with an air inlet pipe, the other end of the air inlet pipe penetrates through the side surface of the tank body and extends into the tank body, the other side of the tank body is fixedly communicated with an air outlet pipe, the upper surface of the tank body is fixedly communicated with a piston pipe, when explosion occurs, because water in the tank body isolates the air inlet pipe from the air outlet pipe, the explosion is prevented in the tank body, the pressure in the tank body suddenly rises due to the explosion, a piston in the piston pipe moves upwards under the impact of air flow, a compression spring is compressed, so that a pressure relief pipe is communicated with the tank body to perform pressure relief, after the pressure in the tank body is reduced, the piston is pushed to move downwards through the elasticity of the spring, the, thereby the condition that the gas in the tank body leaks after the pressure relief is finished is avoided, and the use is safer.

Description

Coal mine gas explosion-proof device

Technical Field

The utility model relates to an explosion-proof safety device field of gas in pit is taken out and put in colliery specifically is a colliery gas explosion-proof equipment.

Background

According to the one hundred forty-six provisions of coal mine safety regulations, a safety device with functions of backfire prevention, gas return prevention and explosion prevention is required to be arranged in a gas suction side pipeline system of a dry type gas suction and discharge pump; and periodically checked to maintain good performance. The existing 'constant water level water seal type explosion-proof device' has design defects: firstly, when explosion occurs, a sealing gland on a pressure relief port at the top of the tank body is instantaneously flushed away by airflow in the tank body, and the gland can break away from a fixing device and fly out to hurt people or cause safety accidents; secondly, the explosion-proof bolt assembly is made of common carbon steel, and is easy to rust into a whole after a long time, so that the sealing gland cannot be opened in time during pressure relief, and the pressure relief and explosion prevention significance is lost; thirdly, the arrangement of the gas inlet pipe and the gas outlet pipe is unreasonable, which is not beneficial to the suction and discharge of gas.

The patent coal mine gas explosion-proof device (publication number: 202187791U) comprises a circular tank body, and is characterized in that a gas inlet pipe and a gas exhaust pipe are respectively arranged at two sides of the tank body, the gas inlet pipe is of a right-angle structure, one end of the gas inlet pipe in the tank body faces downwards, a gap is reserved between the end part of the gas inlet pipe and the bottom of the tank body, a water outlet is arranged at one side below the tank body, a gas outlet of the gas exhaust pipe is positioned in the opposite direction of the gas inlet pipe, a buffer spring device is arranged at the top of the tank body, when the device is in use, the pressure in an inner cavity of the tank body rises suddenly due to explosion, a sealing gland on a pressure relief port is impacted by airflow in the inner cavity of the tank body, a bolt drives an inner bushing to be pulled out from a fixed sleeve, the sealing gland is forcibly opened to relieve, the in-process of collision can lose partial energy to gland can't restore to original sealed effect automatically, and the pressure release in-process, the air current can last impact gland, makes it be difficult to automatic restoration, thereby leads to the internal gas of jar after the pressure release to leak by the pressure release mouth, uses and has certain danger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery gas explosion-proof equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a colliery gas explosion-proof equipment, which comprises a tank body, one side of the jar body is provided with the intake pipe, the other end of intake pipe runs through the side of the jar body and extends to the jar internally, the fixed intercommunication of opposite side of the jar body has the outlet duct, the last fixed surface intercommunication of the jar body has the piston pipe, the last fixed surface of piston pipe is connected with the shrouding, the lower fixed surface of shrouding is connected with two parallel arrangement's telescopic link, the cover is equipped with the assorted spring on the telescopic link, be provided with the assorted piston in the piston pipe, the lower extreme of two telescopic links and the last fixed surface of piston are connected, the fixed.

As a further aspect of the present invention: the piston tube is internally and fixedly connected with a baffle matched with the piston tube, and the upper surface of the baffle is provided with a through cavity.

As a further aspect of the present invention: and a drain pipe is fixedly communicated with one side surface of the tank body, and a matched control valve is installed on the drain pipe.

As a further aspect of the present invention: an automatic water replenishing device is installed on one side face of the tank body, and an outlet of the automatic water replenishing device is fixedly communicated with the side face of the tank body through a water conveying pipe.

As a further aspect of the present invention: the lower surface of the tank body is fixedly connected with a plurality of feet.

Compared with the prior art, the beneficial effects of the utility model are that:

when the utility model is used, the air outlet pipe is externally connected and communicated with the vacuum pump, the interior of the tank body is in a negative pressure state through the vacuum pump, the underground gas enters the water at the lower part of the tank body through the gas inlet pipe along the pipeline, gas separated out from the water is pumped out and collected through the gas outlet pipe by the vacuum pump, when explosion occurs, because the water in the tank body separates the air inlet pipe from the air outlet pipe, the explosion is prevented in the tank body, the pressure in the tank body is suddenly increased due to the explosion, the piston in the piston pipe moves upwards under the impact of the air flow to compress the spring, thereby communicating the pressure relief pipe with the tank body for pressure relief, pushing the piston to move downwards through the elasticity of the spring after the pressure in the tank body is reduced, isolating the pressure relief pipe from the inner part of the tank body, completing the process of one-time pressure relief, thereby the condition that the gas in the tank body leaks after the pressure relief is finished is avoided, and the use is safer.

Drawings

Fig. 1 is a schematic structural diagram of a coal mine gas explosion-proof device.

Fig. 2 is a schematic structural view of a coal mine gas explosion-proof device in section.

In the figure: the water discharging pipe comprises a water discharging pipe 1, a control valve 2, a tank body 3, an air inlet pipe 4, a baffle plate 5, a pressure relief pipe 6, a piston pipe 7, a sealing plate 8, a ground foot 9, a water conveying pipe 10, an automatic water replenishing device 11, an air outlet pipe 12, a through cavity 13, a piston 14, a contraction rod 15 and a spring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, in the embodiment of the utility model, a coal mine gas explosion-proof equipment, including a jar body 3, one side of jar body 3 is provided with intake pipe 4, the other end of intake pipe 4 runs through the side of jar body 3 and extends to in jar body 3, the fixed intercommunication of opposite side of jar body 3 has outlet duct 12, the fixed surface intercommunication of the last fixed surface of jar body 3 has piston tube 7, the last fixed surface of piston tube 7 is connected with shrouding 8, the lower fixed surface of shrouding 8 is connected with two parallel arrangement's telescopic link 15, the cover is equipped with assorted spring 16 on the telescopic link 15 (the elastic coefficient of spring 16 carries out mechanical analysis according to the impact force when the release and calculates and reachs), be provided with assorted piston 14 in the piston tube 7, the lower extreme of two telescopic links 15 and the fixed surface of piston 14 are connected, the fixed.

When the explosion-proof tank is used, the gas outlet pipe 12 is externally connected with a communicated vacuum pump, the interior of the tank body 3 is in a negative pressure state through the vacuum pump, underground gas enters the water at the lower part of the tank body 3 through the gas inlet pipe 4 along a pipeline, the gas separated out from the water is pumped out through the gas outlet pipe 12 through the vacuum pump and collected, when the explosion happens, the explosion is prevented in the tank body 3 because the water in the tank body 3 isolates the gas inlet pipe 4 from the gas outlet pipe 12, the pressure in the tank body 3 suddenly rises due to the explosion, the piston 14 in the piston pipe 7 moves upwards under the impact of air flow, the spring 16 is compressed, the pressure relief pipe 6 is communicated with the tank body 3 for pressure relief, after the pressure in the tank body 3 is reduced, the piston 14 is pushed to move downwards through the elasticity of the spring 16, the pressure relief pipe 6 is isolated from the interior of the tank body 3, the one-time, the use is safer.

A baffle 5 matched with the piston tube 7 is fixedly connected in the piston tube, a through cavity 13 is arranged on the upper surface of the baffle 5, the baffle 5 is arranged to prevent the piston 14 from moving downwards, so as to prevent the piston 14 from moving downwards when the vacuum pump makes the interior of the tank body 3 be in a negative pressure state, the through cavity 13 is arranged to facilitate the passage of the pressure relief air flow, a drain pipe 1 is fixedly communicated with one side surface of the tank body 3, a matched control valve 2 is arranged on the drain pipe 1, through the drain pipe 1 that sets up, the drainage of being convenient for, through the control valve 2 that sets up, the control drain pipe 1 drainage of being convenient for, automatic water supply device 11 (automatic water supply device 11 is current device) is installed to a side of jar body 3, and the export of automatic water supply device 11 passes through the fixed intercommunication in raceway 10 and the side of jar body 3, the replenishment of the internal water of jar of being convenient for, and the lower fixed surface of jar body 3 is connected with the lower margin 9 of a plurality of quantity, and lower margin 9 is convenient for install whole device.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention, and in the present invention, unless otherwise explicitly specified or limited, the terms "set", "mount", "connect", and "fix" and the like are to be construed broadly, for example, as being fixedly connected, detachably connected, or integrated; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a colliery gas explosion-proof equipment, which comprises a tank body (3), a serial communication port, one side of the jar body (3) is provided with intake pipe (4), the other end of intake pipe (4) runs through the side of the jar body (3) and extends to in the jar body (3), the fixed intercommunication of the opposite side of the jar body (3) has outlet duct (12), the last fixed surface intercommunication of the jar body (3) has piston tube (7), the last fixed surface of piston tube (7) is connected with shrouding (8), the lower fixed surface of shrouding (8) is connected with two parallel arrangement's telescopic link (15), the cover is equipped with assorted spring (16) on telescopic link (15), be provided with assorted piston (14) in piston tube (7), the lower extreme of two telescopic link (15) is connected with the last fixed surface of piston (14), the fixed intercommunication in side of piston tube (7) has the pipe.

2. The coal mine gas explosion-proof device according to claim 1, characterized in that a matched baffle (5) is fixedly connected in the piston tube (7), and a through cavity (13) is formed on the upper surface of the baffle (5).

3. The coal mine gas explosion-proof device according to claim 1, characterized in that a drain pipe (1) is fixedly communicated with one side surface of the tank body (3), and a matched control valve (2) is installed on the drain pipe (1).

4. The coal mine gas explosion preventer according to claim 1, wherein an automatic water replenishing device (11) is installed on one side surface of the tank body (3), and an outlet of the automatic water replenishing device (11) is fixedly communicated with the side surface of the tank body (3) through a water conveying pipe (10).

5. A coal mine gas explosion vent according to claim 1, characterized in that a plurality of ground feet (9) are fixedly connected to the lower surface of the tank (3).

Images