CN215804730U

CN215804730U - Coal mine underground coal seam gas pressure testing device

Info

Publication number: CN215804730U
Application number: CN202122201420.4U
Authority: CN
Inventors: 秦江涛; 黄学满; 郝宇; 喻晓峰; 何荣军; 曾月鹏; 秦柱; 方雨乐
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-11
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a coal mine underground coal seam gas pressure testing device which comprises an installation plate, a pressure tank and a sealing cover, wherein a pushing frame is installed on one side of the installation plate, a fixed disk is installed on the top of the installation plate, the pressure tank is installed on the inner side of the fixed disk, the sealing cover is installed on the top of the pressure tank, a fixed frame is installed on the top of a base and located on one side of the fixed disk, a fixing piece is installed on the top of the fixed frame, a fixing pipe is installed on the top of the fixing piece and penetrates through the inner wall of the bottom of the fixing piece, and a sealing pipe is installed on the bottom of the fixing pipe. According to the utility model, the telescopic pipe is arranged at the bottom end of the closed pipe, so that the detection pipe at the bottom end of the telescopic pipe can be stretched to a corresponding length to test the pressure value at the bottom of the coal bed, and meanwhile, the graduated scale is arranged on one side of the telescopic pipe, so that the telescopic pipe can be accurately stretched to a proper position through the graduated scale, and the pressure test is more accurate.

Description

Coal mine underground coal seam gas pressure testing device

Technical Field

The utility model relates to the technical field of coal mine underground coal seam gas pressure testing devices, in particular to a coal mine underground coal seam gas pressure testing device.

Background

In the underground coal seam mine, the gas pressure value of the coal seam is tested to prevent the occurrence of dangerous accidents caused by overlarge gas pressure of the coal seam in the coal seam, and the coal seam is a layered solid combustible mineral product formed by transforming plant remains through complex biochemical action and geological action and is present in a coal-containing rock system and positioned between top and bottom plate rocks.

The existing coal mine underground coal seam gas pressure testing device has the following defects:

1. the comparison document CN210347634U discloses a coal seam gas pressure test system based on drilling sampling actual measurement, and the utility model relates to a coal seam gas pressure test system based on drilling sampling actual measurement, which comprises a gas loss compensation device, a dead volume calibration device, a gas pressure measurement device, a dead volume filling device, a gas loss measurement device and a control system, wherein the gas pressure measurement device is respectively communicated with the gas loss compensation device, the dead volume calibration device, the dead volume filling device and the gas loss measurement device through a guide pipe; the control system is respectively and electrically connected with the gas loss compensation device, the dead volume calibration device, the gas pressure measuring device, the dead volume filling device and the gas loss measuring device, wherein at least one gas pressure measuring device is arranged, the gas pressure measuring device and the gas loss measuring device form a working group, and all the working groups are mutually connected in parallel. This novel can make survey in-process can restore coal seam storage environment, the influence of eduction gear dead volume to gas pressure measuring result gets rid of and measures in the pit hole sealing effect poor, the influence of factors such as easy cluster hole, survey coal seam gas pressure that can be accurate, "traditional colliery coal seam gas pressure testing arrangement in the pit is using or is removing inconvenient very, causes the puzzlement to staff's use.

2. Traditional colliery is coal seam gas pressure testing arrangement in pit, the hole sealing effect is not good, and testing arrangement does not have the effect of extension and mark scale moreover, makes the inconvenient test of staff.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for testing gas pressure of an underground coal seam of a coal mine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the pressure testing device for the gas in the coal seam of the coal mine comprises an installation plate, a pressure tank and a sealing cover, wherein a pushing frame is installed on one side of the installation plate, a fixed disc is installed at the top of the installation plate, the pressure tank is installed on the inner side of the fixed disc, and the sealing cover is installed at the top of the pressure tank;

the top of the base is provided with a fixing frame, the fixing frame is positioned on one side of the fixing disc, the top of the fixing frame is provided with a fixing piece, the top of the fixing piece is provided with a fixing pipe, and the fixing pipe penetrates through the inner wall of the bottom of the fixing piece;

and a closed pipe is arranged at the bottom of the fixed pipe.

Preferably, the bottom of the mounting plate is symmetrically provided with moving wheels.

Preferably, a pushing handle is installed at one side of the pushing frame.

Preferably, the front surface of the pressure tank is provided with a pressurizing port.

Preferably, a first pressure gauge is installed at the top of the sealing cover, the discharging pipe is installed at the top of the sealing cover and is located on one side of the first pressure gauge, the control valve is installed at the top of the discharging pipe, a first connecting port is installed on one side of the discharging pipe, and the connecting pipe is installed on the inner side of the first connecting port.

Preferably, a second connector is installed on one side of the fixed pipe, and a second pressure gauge is installed at the top end of the fixed pipe.

Preferably, a discharge hole is formed in the outer side of the closed pipe, a telescopic pipe is installed at the bottom of the closed pipe, scale marks are carved on the outer side of the telescopic pipe, and a detection pipe is installed at the bottom end of the telescopic pipe.

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

1. according to the utility model, the mobile device is arranged in the device, equipment to be detected can be placed on the mobile device through the mobile device, so that the movement of workers is facilitated, and no trouble is caused to the workers.

2. According to the utility model, the telescopic pipe is arranged at the bottom end of the closed pipe, the telescopic pipe can be used for stretching, so that the detection pipe at the bottom end of the telescopic pipe can be stretched to a corresponding length, the pressure value at the bottom of a coal seam is tested, meanwhile, the graduated scale is arranged on one side of the telescopic pipe, the telescopic pipe can be accurately stretched to a proper position through the graduated scale, the pressure test is more accurate, and meanwhile, the device enables a material for sealing in the pressure tank to be sprayed out from the discharge hole, so that the sealing can be carried out, and the sealing effect is better.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the closed tube structure of the present invention;

FIG. 3 is a schematic view of the pressure tank configuration of the present invention;

fig. 4 is a schematic view of the structure of the discharge pipe of the present invention.

In the figure: 1. mounting a plate; 101. a moving wheel; 102. fixing the disc; 2. a pushing frame; 201. pushing the handle; 3. a pressure tank; 301. a pressurizing port; 4. a closure cap; 401. a first pressure gauge; 402. a discharge pipe; 403. a control valve; 404. a first connection port; 405. a connecting pipe; 5. a fixed mount; 501. a fixing member; 502. a fixed tube; 503. a second connection port; 504. a second pressure gauge; 6. closing the tube; 601. a discharge port; 602. a telescopic pipe; 603. scale lines; 604. and (6) detecting the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 3 and 4, an embodiment of the present invention is provided: a coal mine underground coal bed gas pressure testing device comprises a mounting plate 1, a pressure tank 3 and a sealing cover 4, wherein a pushing frame 2 is mounted on one side of the mounting plate 1, moving wheels 101 are symmetrically distributed and mounted at the bottom of the mounting plate 1, a fixed disc 102 is mounted at the top of the mounting plate 1, the mounting plate 1 is used for placing the testing device, the testing device can be connected, the testing device can be conveniently moved, the moving wheels 101 play a moving role, the device can be moved through rotation of the moving wheels 101, workers can conveniently move the device, physical strength of the workers is saved, the fixed disc 102 plays a fixing role, the pressure tank 3 can be fixed, the testing device is prevented from being unstable when moving, a pushing handle 201 is mounted on one side of the pushing frame 2, the pushing frame 2 provides a mounting position for the pushing handle 201, the pushing handle 201 is convenient for the workers to move the device, the inner side of the fixed disk 102 is provided with a pressure tank 3, the front surface of the pressure tank 3 is provided with a pressurizing port 301, the pressure tank 3 has large pressure and stores materials for sealing, a position is provided for storing the materials, the pressurizing port 301 provides a space for pressure to enter the pressure tank 3, the top of the pressure tank 3 is provided with a sealing cover 4, the top of the sealing cover 4 is provided with a first pressure gauge 401, the top of the sealing cover 4 is provided with a discharge pipe 402, the discharge pipe 402 is positioned at one side of the first pressure gauge 401, the top of the discharge pipe 402 is provided with a control valve 403, one side of the discharge pipe 402 is provided with a first connecting port 404, the inner side of the first connecting port 404 is provided with a connecting pipe 405, the sealing cover 4 provides mounting positions for the first pressure gauge 401 and the discharge pipe 402 at the top, the first pressure gauge 401 is used for detecting the pressure in the pressure tank 3, the discharge pipe 402 enables the materials in the pressure tank 3 to be discharged, the control valve 403 is used for controlling the opening and closing of the discharging pipe 402, the first connecting port 404 is used for connection, and the connecting pipe 405 enables the first connecting port 404 to be connected with the second connecting port 503;

as shown in figure 2, the coal mine underground coal seam gas pressure testing device comprises a fixed frame 5 and a closed pipe 6, wherein the fixed frame 5 is arranged at the top of a mounting plate 1, and the fixing frame 5 is positioned at one side of the fixing disc 102, the fixing piece 501 is installed at the top of the fixing frame 5, the fixing tube 502 is installed at the top of the fixing piece 501, the fixed pipe 502 penetrates through the inner wall of the bottom of the fixing piece 501, a second connecting port 503 is installed on one side of the fixed pipe 502, a second pressure gauge 504 is installed at the top end of the fixed pipe 502, the fixing frame 5 plays a role in fixing and is used for installing a testing device, the fixing piece 501 enables the testing device to be installed more stably, the fixed pipe 502 provides a position for installing the second connecting port 503, the fixed pipe 502 plays a role in connection, the second connecting port 503 is connected with one end of the connecting pipe 405 to play a role in connection, and the second pressure gauge 504 is used for detecting the pressure value of gas inside the coal seam;

the bottom of the fixed pipe 502 is provided with a closed pipe 6, the outer side of the closed pipe 6 is provided with a discharge hole 601, the bottom of the closed pipe 6 is provided with an extension pipe 602, the outer side of the extension pipe 602 is marked with scale marks 603, the bottom end of the extension pipe 602 is provided with a detection pipe 604, the closed pipe 6 plays a role of closing, the discharge hole 601 provides a position, the discharge hole 601 enables a sealing material to be discharged from the inside of the closed pipe 6 so as to reach the outer side of the closed pipe 6 watt, then the material can be solidified to play a role of closing, the extension pipe 602 can extend and retract to enable the detection pipe 604 at the bottom end of the extension pipe 602 to extend to a corresponding length to test the pressure value at the bottom of a coal seam, meanwhile, one side of the extension pipe 602 is provided with scale marks 603, the extension pipe 602 can accurately extend and retract to a proper position through the scale marks 603, so that the pressure test is more accurate, and the detection pipe 604 plays a role of detecting, space can be provided for the detection of pressure by the detection tube 604.

The working principle is as follows: before the coal bed gas pressure testing device is used, whether the coal bed gas pressure testing device affects the use or not is checked, firstly, the coal bed gas pressure testing device is moved to a position to be used through the rotation of the moving wheel 101, the connecting port is connected through the connecting pipe 405, the control valve 403 is opened, materials for sealing inside the pressure tank 3 are sprayed out from the discharge port 601, the sprayed materials can be solidified, the sealing effect is achieved, the second pressure gauge 504 can display the coal bed gas pressure value, the observation by workers is facilitated, meanwhile, the telescopic pipe 602 can be stretched, the detection pipe 604 at the bottom end of the telescopic pipe 602 can be stretched to a corresponding length, the pressure value at the bottom of the coal bed is tested, meanwhile, the scale mark 603 is arranged on one side of the telescopic pipe 602, and the telescopic pipe 602 can be accurately stretched to a proper position through the scale mark 603, the pressure test is more accurate.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a colliery is coal seam gas pressure test device in pit, includes mounting panel (1), overhead tank (3) and closing cap (4), its characterized in that: a pushing frame (2) is installed on one side of the installation plate (1), a fixed disc (102) is installed on the top of the installation plate (1), a pressure tank (3) is installed on the inner side of the fixed disc (102), and a sealing cover (4) is installed on the top of the pressure tank (3);

a fixing frame (5) is installed at the top of the installing plate (1), the fixing frame (5) is located on one side of the fixing disc (102), a fixing piece (501) is installed at the top of the fixing frame (5), a fixing pipe (502) is installed at the top of the fixing piece (501), and the fixing pipe (502) penetrates through the inner wall of the bottom of the fixing piece (501);

the bottom of the fixed pipe (502) is provided with a closed pipe (6).

2. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: the bottom of the mounting plate (1) is symmetrically provided with moving wheels (101).

3. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: and a pushing handle (201) is arranged on one side of the pushing frame (2).

4. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: and a pressurizing port (301) is arranged on the front surface of the pressure tank (3).

5. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: first manometer (401) are installed at the top of closing cap (4), and discharging pipe (402) are located one side of first manometer (401), and control valve (403) are installed at the top of discharging pipe (402), and first connecting port (404) are installed to one side of discharging pipe (402), and connecting pipe (405) are installed to the inboard of first connecting port (404).

6. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: a second connecting port (503) is installed on one side of the fixed pipe (502), and a second pressure gauge (504) is installed at the top end of the fixed pipe (502).

7. The device for testing the gas pressure of the coal mine underground coal seam according to claim 1, which is characterized in that: a discharge hole (601) is formed in the outer side of the closed pipe (6), an extension pipe (602) is installed at the bottom of the closed pipe (6), scale marks (603) are carved on the outer side of the extension pipe (602), and a detection pipe (604) is installed at the bottom end of the extension pipe (602).