Air circulation device for gas prevention and control

Abstract

The utility model belongs to the technical field of air circulation devices, in particular to an air circulation device for gas prevention and control, which comprises a box body, a fixing plate parallel to the horizontal plane is fixedly arranged in the box body, a first air pump and a second air pump are fixedly arranged above the box body, the air exhaust end of the first air pump is communicated with a first air exhaust pipe, and the air exhaust end of the second air pump is communicated with a second air exhaust pipe. The first exhaust pipe penetrates through a bottom plate of the filter box and is fixedly connected with the filter box, a first air inlet pipe penetrates through a top plate of the filter box and is fixedly connected with the top plate of the filter box, the first air inlet pipe penetrates through the top plate of the box body, two air storage tanks are arranged below the box body, and two damping mechanisms are fixedly arranged on the top face of a bottom plate of the box body. Firstly, the two air storage tanks are used for alternate use and replacement, the problem that the air circulation device cannot continue to work when the air storage tanks are full is solved, secondly, the filter box can prevent pulverized coal and dust from entering the first air pump and the air storage tanks, and the service life of the air circulation device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air circulation devices, in particular to an air circulation device used for gas prevention and control. Background Art

[0002] Gas is insoluble in water and does not support combustion, but it is flammable and explosive. When mixed with air to a certain concentration, it can burn or explode when it encounters a fire source. In addition, gas is also suffocating. When the concentration of gas in the air is too high, it will reduce the oxygen content and cause suffocation due to lack of oxygen.

[0003] Coal will produce a certain amount of gas during its generation or deterioration process, so when the coal mine is mined, the gas will cover the mine, threatening the personal safety of miners;

[0004] Patent publication number CN116293409A discloses an air circulation device for coal mine gas prevention and control, and its structure includes: a positioning module, a main body, a regulating end, a partition plate, a suction component, and a gas extraction member. The positioning module is welded to both sides of the main body, the center of the surface layer of the main body is electrically connected to the regulating end, and the partition plate is fixed to the upper end of the main body; the present invention is further improved by the gas extraction member, and the gas can be introduced into the storage box for fixed-point storage after the gas is separated from the mine by the gas extraction valve through the storage box connected to the gas extraction valve, and the original direct discharge is replaced by the storage method, thereby preventing the waste of available energy and the generation of environmental pollution. At the same time, according to the threaded connection and the snap-fit ​​effect of the assembly plate of the storage box and itself, the connection firmness between the two can be increased, and according to the gap elimination characteristics of the airtight layer, the slow leakage in the gas storage process can be prevented, thereby improving the gas storage effect;

[0005] Although the air circulation device for coal mine gas prevention and control can separate the gas from the mine cave through the air extraction valve and introduce the gas into the storage box for fixed-point storage, thereby preventing the waste of available energy and the generation of environmental pollution, if the storage box is full of gas, the air circulation device for coal mine gas prevention and control can only be closed, causing the miners to stop working;

[0006] In order to solve the above problems, the present application proposes an air circulation device for gas prevention and control. Utility Model Content

[0007] The purpose of the utility model is to provide an air circulation device for gas prevention and control, which solves the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is an air circulation device for gas prevention and control, comprising a box body, a cavity is opened in the box body, a fixing plate parallel to the horizontal plane is fixedly arranged in the box body, a first air pump and a second air pump are fixedly arranged above the box body, an air suction end of the first air pump is connected with an air suction pipe, the air suction pipe passes through the bottom plate of the filter box and is fixedly connected to the filter box, the top plate of the filter box is penetrated by an air intake pipe and is fixedly connected to the air intake pipe, the air intake pipe passes through the top plate of the box body, two gas storage tanks are arranged below the box body, and two shock absorbing mechanisms are fixedly arranged on the top surface of the bottom plate of the box body.

[0010] Furthermore, the air outlet end of the first air pump is connected with an exhaust pipe 1, the exhaust pipe 1 passes through a fixed plate and is connected with a connecting pipe, an air inlet pipe 2 is provided at the top of the air storage tank, a valve 2 is provided on the air inlet pipe 2, the air inlet pipe 2 is respectively connected with two ends of the connecting pipe, the air inlet pipe 2 and the connecting pipe are connected by a flange, a valve 1 is respectively provided at both ends of the connecting pipe, and a pressure gauge is installed on the air storage tank.

[0011] Furthermore, the shock absorbing mechanism includes a shock absorbing seat and a plurality of hydraulic shock absorbers, the top surface of the shock absorbing seat is provided with a placement groove downwardly, the placement groove is penetrated by the bottom end of the air storage tank, the top end of the hydraulic shock absorber is fixedly connected to the bottom surface of the shock absorbing seat, and the bottom end of the hydraulic shock absorber is fixedly connected to the top surface of the bottom plate of the box body.

[0012] Furthermore, the air suction end of the second air pump is connected to one end of the second air suction pipe, the other end of the second air suction pipe passes through the side wall of the box and extends to the outside, and the air outlet end of the second air pump is connected to the second exhaust pipe.

[0013] Furthermore, a plurality of filter plates are arranged in the filter box, and the filter plates are arranged parallel to the horizontal plane.

[0014] Furthermore, a refrigerator is provided below the fixing plate, and the refrigerator is fixedly connected to the inner wall of the box body.

[0015] Furthermore, the fixing plate is provided with a plurality of through slots, and the through slots pass through the fixing plate.

[0016] The utility model has the following beneficial effects:

[0017] The utility model uses a connecting pipe with valves at both ends and a gas storage tank with valves at two intake pipes. When the air circulation device is working, gas is filled into one gas storage tank, and the other gas storage tank is kept in standby mode. When the gas storage tank filled with gas is full, the second valve of the intake pipe of the gas storage tank full of gas and the first valve at the end of the connecting pipe connected with the intake pipe of the gas storage tank are closed, and at the same time, the second valve of the intake pipe of the standby gas storage tank and the first valve at the end of the connecting pipe connected with the intake pipe of the gas storage tank are opened to allow gas to be filled into the standby gas storage tank. Finally, the gas storage tank full of gas is disassembled and an empty gas storage tank is installed, so that the air circulation device solves the problem that the gas storage tank cannot work when it is full.

[0018] The utility model filters the gas entering the first air pump through a filter box, and a plurality of filter plates are arranged in the filter box to intercept coal powder and dust, thereby preventing the coal powder and dust from entering the first air pump or the gas storage tank.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the first air pump of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the gas storage tank of the utility model;

[0024] Figure 4 This is a schematic diagram of the connecting pipe structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the shock absorbing mechanism of the utility model;

[0026] Figure 6 This is a schematic diagram of the fixed plate structure of the utility model;

[0027] Figure 7 This is a schematic diagram of the filter box structure of the utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] In the figure: 1, box body; 2, first air pump; 3, filter box; 4, air storage tank; 5, shock absorbing mechanism; 6, second air pump; 7, refrigerator; 101, fixing plate; 1011, through groove; 201, exhaust pipe 1; 202, exhaust pipe 1; 203, connecting pipe; 2031, valve 1; 301, intake pipe 1; 302, filter plate; 401, intake pipe 2; 402, pressure gauge; 4011, valve 2; 501, shock absorbing seat; 502, hydraulic shock absorber; 5011, placement groove; 601, exhaust pipe 2; 602, exhaust pipe 2. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] See also Figure 1-7 As shown, the utility model is an air circulation device for gas prevention and control, comprising a box body 1, a cavity is opened in the box body 1, a fixing plate 101 parallel to the horizontal plane is fixedly arranged in the box body 1, a first air pump 2 and a second air pump 6 are fixedly arranged above the box body 1, the air extraction end of the first air pump 2 is connected to an air extraction pipe 201, the air extraction pipe 201 passes through the bottom plate of the filter box 3 and is fixedly connected to the filter box 3, the top plate of the filter box 3 is penetrated by an air intake pipe 301 and is fixedly connected to the air intake pipe 301, the air intake pipe 301 passes through The top plate of the box body 1 is connected, and two gas tanks 4 are arranged under the box body 1. Two shock absorbing mechanisms 5 are fixedly arranged on the top surface of the bottom plate of the box body 1. A plurality of filter plates 302 are arranged in the filter box 3, and the filter plates 302 are arranged parallel to the horizontal plane. In this embodiment, the gas extracted by the first air pump 2 is filtered by the filter box 3 to prevent coal powder and dust from entering the first air pump 2 or the gas tank 4, thereby improving the service life of the air circulation device. By alternately replacing the gas tank 4, the problem that the air circulation device cannot continue to work after the gas tank 4 is full is solved.

[0033] The outlet end of the first air pump 2 is connected to the exhaust pipe 1 202, the exhaust pipe 1 202 passes through the fixed plate 101 and is connected to the connecting pipe 203, the top of the air storage tank 4 is provided with an intake pipe 2 401, the intake pipe 2 401 is provided with a valve 2 4011, the intake pipe 2 401 is respectively connected to the two ends of the connecting pipe 203, the intake pipe 2 401 and the connecting pipe 203 are connected by a flange, and the two ends of the connecting pipe 203 are respectively provided with valves 4011. Door 1 2031, a pressure gauge 402 is installed on the gas tank 4. In this embodiment, valve 2 4011 of intake pipe 2 401 can prevent gas leakage after the gas tank 4 filled with gas is disassembled. Valves 2031 arranged at both ends of the connecting pipe 203 can control which gas tank 4 the gas enters. The intake pipe 2 401 and the connecting pipe 203 are connected by a flange to facilitate the disassembly and installation of the gas tank 4. The pressure gauge 402 can be used to observe whether the gas tank 4 is full.

[0034] Among them, the shock absorbing mechanism 5 includes a shock absorbing seat 501 and multiple hydraulic shock absorbers 502. The top surface of the shock absorbing seat 501 is provided with a placement groove 5011 downwardly, and the placement groove 5011 is penetrated by the bottom end of the gas storage tank 4. The top of the hydraulic shock absorber 502 is fixedly connected to the bottom surface of the shock absorbing seat 501, and the bottom end of the hydraulic shock absorber 502 is fixedly connected to the top surface of the bottom plate of the box body 1. In this embodiment, the shock absorbing mechanism 5 is used to place the gas storage tank 4 to reduce the impact and vibration of the gas storage tank 4.

[0035] Among them, the suction end of the second air pump 6 is connected to one end of the second suction pipe 601, the other end of the second suction pipe 601 passes through the side wall of the box body 1 and extends to the outside, and the air outlet end of the second air pump 6 is connected to the second exhaust pipe 602. In this embodiment, the second air pump 6 draws external air through the second suction pipe 601 and discharges it through the second exhaust pipe 602, so that the air in the coal mine forms a circulation, thereby ensuring the air circulation in the coal mine.

[0036] Among them, a refrigerator 7 is arranged under the fixed plate 101, and the refrigerator 7 is fixedly connected to the inner wall of the box body 1. The fixed plate 101 is provided with a plurality of through grooves 1011, and the through grooves 1011 penetrate the fixed plate 101. In this embodiment, the refrigerator 7 cools the gas storage tank 4 to prevent the gas storage tank 4 from being overheated and causing gas leakage or explosion. The fixed plate 101 is provided with through grooves 1011, and the cold air cools the first air pump 2 and the second air pump 6 through the through grooves 1011 to prevent the first air pump 2 and the second air pump 6 from stopping working due to overheating.

[0037] It can be understood that the two air tanks 4 are firstly provided for alternate use and replacement, which solves the problem that the air circulation device cannot continue to work when the air tanks 4 are full. Secondly, the filter box 3 is provided to prevent coal powder and dust from entering the first air pump 2 and the air tank 4, thereby improving the service life of the air circulation device.

[0038] A specific application of this embodiment is: when the air circulation device is working, gas is charged into one gas tank 4, and the other gas tank 4 is on standby. Gas is extracted by the first air pump 2, and the gas enters the filter box 3 through the intake pipe 1 301 for filtering. The filtered gas enters the exhaust pipe 1 201 and then enters the gas tank 4 through the first air pump 2, the exhaust pipe 1 202, the connecting pipe 203 and the intake pipe 2 401. It can be judged by the pressure gauge 402 whether the gas tank 4 currently charged with gas is full. When the gas tank 4 charged with gas is full, the valve 2 4011 of the intake pipe 2 401 of the gas tank 4 that is full of gas is closed, and the valve 2 4011 connected to the intake pipe 2 401 of the gas tank 4 that is full of gas is closed. The valve 2031 at the end of the connecting pipe 203 connected to the air inlet pipe 401 of the gas tank 4 is opened, and at the same time, the valve 4011 of the air inlet pipe 401 of the spare gas tank 4 and the valve 2031 at the end of the connecting pipe 203 connected to the air inlet pipe 401 of the gas tank 4 are opened to allow the gas to be filled into the spare gas tank 4. Finally, the gas tank 4 filled with gas is disassembled and an empty gas tank 4 is installed. The gas tank 4 is placed in the placement groove 5011 opened in the shock absorber seat 501. The second air pump 6 is responsible for ensuring that there is sufficient oxygen in the coal mine, extracting outside air and releasing it into the coal mine, and the refrigerator 7 cools the gas tank 4.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An air circulation device for gas prevention and control, comprising a box (1), a cavity is provided in the box (1), a fixing plate (101) parallel to a horizontal plane is fixedly arranged in the box (1), characterized in that: A first air pump (2) and a second air pump (6) are fixedly arranged above the box body (1); an air suction end of the first air pump (2) is connected to an air suction pipe (201); the air suction pipe (201) passes through the bottom plate of the filter box (3) and is fixedly connected to the filter box (3); an air intake pipe (301) passes through the top plate of the box body (1) and is fixedly connected to the air intake pipe (301); the air intake pipe (301) passes through the top plate of the box body (1); two air storage tanks (4) are arranged below the box body (1); and two shock absorbing mechanisms (5) are fixedly arranged on the top surface of the bottom plate of the box body (1).

2. The air circulation device for gas prevention and control according to claim 1, characterized in that: The air outlet end of the first air pump (2) is connected to an exhaust pipe (202), the exhaust pipe (202) passes through the fixed plate (101) and is connected to the connecting pipe (203), the top end of the air storage tank (4) is provided with an air intake pipe (401), the air intake pipe (401) is provided with a valve (4011), the air intake pipe (401) is respectively connected to the two ends of the connecting pipe (203), the air intake pipe (401) and the connecting pipe (203) are connected via a flange, the two ends of the connecting pipe (203) are respectively provided with a valve (2031), and the air storage tank (4) is installed with a pressure gauge (402).

3. The air circulation device for gas prevention and control according to claim 1, characterized in that: The shock absorbing mechanism (5) comprises a shock absorbing seat (501) and a plurality of hydraulic shock absorbers (502); a placement groove (5011) is provided downwardly on the top surface of the shock absorbing seat (501); the placement groove (5011) is penetrated by the bottom end of the gas storage tank (4); the top end of the hydraulic shock absorber (502) is fixedly connected to the bottom surface of the shock absorbing seat (501); and the bottom end of the hydraulic shock absorber (502) is fixedly connected to the top surface of the bottom plate of the box body (1).

4. The air circulation device for gas prevention and control according to claim 1, characterized in that: The suction end of the second air pump (6) is connected to one end of the second suction pipe (601), the other end of the second suction pipe (601) passes through the side wall of the box body (1) and extends to the outside, and the outlet end of the second air pump (6) is connected to the second exhaust pipe (602).

5. The air circulation device for gas prevention and control according to claim 1, characterized in that: A plurality of filter plates (302) are arranged in the filter box (3), and the filter plates (302) are arranged parallel to a horizontal plane.

6. The air circulation device for gas prevention and control according to claim 1, characterized in that: A refrigerator (7) is arranged below the fixing plate (101), and the refrigerator (7) is fixedly connected to the inner wall of the box body (1).

7. The air circulation device for gas prevention and control according to claim 1, characterized in that: The fixing plate (101) is provided with a plurality of through slots (1011), and the through slots (1011) penetrate the fixing plate (101).

Images