CN210217716U - Coal bed gas pressure measuring device - Google Patents
Coal bed gas pressure measuring device Download PDFInfo
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- CN210217716U CN210217716U CN201920591381.3U CN201920591381U CN210217716U CN 210217716 U CN210217716 U CN 210217716U CN 201920591381 U CN201920591381 U CN 201920591381U CN 210217716 U CN210217716 U CN 210217716U
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Abstract
The utility model discloses a coal seam gas pressure survey device belongs to coal mining technical field, including coal seam and rock stratum, the coal seam is in the top of rock stratum, still including drilling, blow-off pipe and intake pipe, and the blow-off pipe setting is in the drilling, and the intake pipe setting is in the blow-off pipe, and the one end and the water source of blow-off pipe are connected, and the other end is connected with airtight water storage tank, and the tip of intake pipe sets up valve and pressure-measuring meter, sets up the manometer on the pipeline on airtight water storage tank upper portion, and the bottom of blow-off pipe sets up the slip casting and. The utility model discloses a coal seam gas pressure measurement device can effectively administer surrounding rock crack, water, prevents that the surrounding rock leakproofness from pressing, going out water and causing the influence to the drilling pressure measurement. Water is discharged from the drainage channel through a gas-water separation process, so that the water is prevented from being mixed into the air pipe, and the pressure measurement is prevented from being inaccurate. The device greatly improves the accuracy of drilling pressure measurement, provides reliable and real data for formulating a gas treatment scheme, and improves the scientificity of gas treatment.
Description
Technical Field
The utility model relates to a coal mining technical field, specifically speaking, the utility model relates to a coal seam gas pressure survey device.
Background
The coal mine underground gas pressure measurement is influenced by roadway cracks and rock stratum water for a long time, the pressure measurement drilling hole has poor measurement accuracy, the coal seam gas pressure condition cannot be truly reflected, the determination of a gas treatment scheme is influenced, the expected treatment effect cannot be achieved, and how to accurately measure the coal seam gas pressure is an inevitable requirement for safety production in the coal mining process.
Disclosure of Invention
The utility model aims to solve the technical problem that a gas pressure survey device is provided, the device can improve the accuracy of drilling pressure measurement, provides reliable true data for formulating the gas treatment scheme, has improved the scientificity that gas was administered.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: coal seam gas pressure survey device, including coal seam and stratum, the coal seam sets up drilling in the top of stratum, the stratum, still includes drilling, blow-off pipe and intake pipe, the blow-off pipe sets up in the drilling, and the intake pipe setting is in the blow-off pipe, and the one end and the drilling top of blow-off pipe are connected, and the other end is connected with airtight water storage tank, the tip of intake pipe sets up valve and manometer, sets up the manometer on the pipeline on airtight water storage tank upper portion, and the bottom of blow-off pipe sets up the slip casting and connects.
Preferably, the air inlet pipe is provided with a sealing joint hoop.
Preferably, a sealing joint hoop is arranged inside the grouting joint.
Adopt the technical scheme of the utility model, can obtain following beneficial effect:
the utility model discloses a coal seam gas pressure measurement device can effectively administer surrounding rock crack, water, prevents that the surrounding rock leakproofness from pressing, going out water and causing the influence to the drilling pressure measurement. Water is discharged from the drainage channel through a gas-water separation process, so that the water is prevented from being mixed into the air pipe, and the pressure measurement is prevented from being inaccurate. The device greatly improves the accuracy of drilling pressure measurement, provides reliable and real data for formulating a gas treatment scheme, and improves the scientificity of gas treatment.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural view of the apparatus;
the labels in the above figures are: 1. a coal seam; 2. a water discharge pipe; 3. an air inlet pipe; 4. grouting joints; 5. a sealing joint hoop; 6. a pressure gauge; 7. a pressure gauge; 8. sealing the water storage tank; 9. and (6) drilling.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, in which the shapes, structures, mutual positions and connection relationships of the respective members, the functions of the respective portions, the operation principles, and the like of the respective members are described.
As shown in figure 1, this coal seam gas pressure survey device includes coal seam 1 and stratum, coal seam 1 is in the top of stratum, set up drilling 9 in the stratum, still include drilling 9, bleeder 2 and intake pipe 3, bleeder 2 sets up in drilling 9, intake pipe 3 sets up in bleeder 2, the one end and the drilling 9 top of bleeder 2 are connected, the other end is connected with airtight water storage tank 8, the tip of intake pipe 3 sets up valve and pressure-measuring meter 7, set up manometer 6 on the pipeline on airtight water storage tank 8 upper portion, the bottom of bleeder 2 sets up slip casting joint 4, set up sealed joint hoop 5 on the intake pipe 3, slip casting joint 4 inside sets up sealed joint hoop 5.
During construction, a hole 9 is drilled in a rock stratum at the lower part of a coal seam 1, a water pipe 2 is placed in the drilled hole 9, an air inlet pipe 3 is placed in the water outlet pipe 2, water in the rock stratum flows into a closed water storage tank 8 along the water outlet pipe 2, and gas in the coal seam 1 flows to a gas measuring device through the air inlet pipe 3, so that the content of the gas in the coal seam 1 is measured accurately, and the coal mining safety is guaranteed.
This coal seam gas pressure survey device can effectively administer surrounding rock crack, water, prevents that the surrounding rock leakproofness from pressing, going out water and causing the influence to the drilling pressure measurement. Water is discharged from the drainage channel through a gas-water separation process, so that the water is prevented from being mixed into the air pipe, and the pressure measurement is prevented from being inaccurate. The device greatly improves the accuracy of drilling pressure measurement, provides reliable and real data for formulating a gas treatment scheme, and improves the scientificity of gas treatment.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (3)
1. Coal seam gas pressure survey device, including coal seam and stratum, the coal seam sets up drilling, its characterized in that in the top of stratum in the stratum: the water drainage pipe is arranged in a drill hole, the air inlet pipe is arranged in the water drainage pipe, one end of the water drainage pipe is connected with the top of the drill hole, the other end of the water drainage pipe is connected with the airtight water storage tank, the end of the air inlet pipe is provided with a valve and a pressure measuring meter, the pipeline on the upper portion of the airtight water storage tank is provided with a pressure meter, and the bottom of the water drainage pipe is provided with a grouting joint.
2. The coal bed gas pressure measuring apparatus according to claim 1, characterized in that: and the air inlet pipe is provided with a sealing joint hoop.
3. The coal bed gas pressure measuring apparatus according to claim 1, characterized in that: and a sealing joint hoop is arranged in the grouting joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591381.3U CN210217716U (en) | 2019-04-28 | 2019-04-28 | Coal bed gas pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591381.3U CN210217716U (en) | 2019-04-28 | 2019-04-28 | Coal bed gas pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217716U true CN210217716U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920591381.3U Active CN210217716U (en) | 2019-04-28 | 2019-04-28 | Coal bed gas pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931051A (en) * | 2019-04-28 | 2019-06-25 | 淮北矿业股份有限公司 | Determination of coal seam gas pressure device |
| CN113153273A (en) * | 2021-03-18 | 2021-07-23 | 华能煤炭技术研究有限公司 | Coal bed gas pressure measuring structure and measuring method |
-
2019
- 2019-04-28 CN CN201920591381.3U patent/CN210217716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931051A (en) * | 2019-04-28 | 2019-06-25 | 淮北矿业股份有限公司 | Determination of coal seam gas pressure device |
| CN113153273A (en) * | 2021-03-18 | 2021-07-23 | 华能煤炭技术研究有限公司 | Coal bed gas pressure measuring structure and measuring method |
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