CN202946147U - Active rapid pressure gauge for shaft coal uncovering - Google Patents
Active rapid pressure gauge for shaft coal uncovering Download PDFInfo
- Publication number
- CN202946147U CN202946147U CN 201220661666 CN201220661666U CN202946147U CN 202946147 U CN202946147 U CN 202946147U CN 201220661666 CN201220661666 CN 201220661666 CN 201220661666 U CN201220661666 U CN 201220661666U CN 202946147 U CN202946147 U CN 202946147U
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- pressure
- capsules
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- capsule
- high pressure
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Abstract
The utility model relates to an active rapid pressure gauge for shaft coal uncovering. The pressure gauge comprises a capsule pressurization system, a high-pressure grouting system, a drainage system and a pressure measurement system, wherein the capsule pressurization system comprises two high-pressure capsules, a connection water pipe which connects wall sandwiches of the two high-pressure capsules and a hand-operating test pump; a pressure water pipe of the capsule pressurization system is connected with a connector at the outer end of the water pipeline; the high-pressure grouting system comprises a grouting DN15 pipe provided with a check valve at one inner end; the check valve is arranged between the two high-pressure capsules; the drainage system comprises a pressure measurement depressurization pipe provided with a leak mesh at one inner end and a depressurization valve at the outer end; the pressure measurement system comprises a three-way pressure gauge; the three-way pressure gauge is connected with the high-pressure capsules; the two high-pressure capsules are connected with the cavity of the three-way pressure gauge through a methane-gas connecting pipe, and filter ports are formed in front ends of high-pressure capsules.
Description
Technical field
The utility model relates to safety of coal mines field, the active quick measuring cell of especially a kind of pit shaft exposed coal.
Background technology
In the prediction of pit shaft exposed coal outburst hazard, measure coal-bed gas pressure of crucial importance, especially quick, Accurate Determining coal-bed gas pressure bring huge economic benefit can for mining construction side, and mine is put into production as early as possible, create economic worth.
The conventional determining coal-bed gas pressure need to be installed orifice tube slip casting, then crack and the water in secondary grouting shutoff boring.At least need three day time from the boring perforate to the pressure measurement capsule is installed, add the pressure observation in later stage, whole pressure measurement process need five, six days, the work period is longer.
The utility model content
In order to address the above problem, the utility model has been carried the active quick measuring cell of a kind of pit shaft exposed coal, saved the slip casting process time twice, adopt active pressure measurement, reduced the pressure observation time, if artesian water is arranged in pressure measuring chamber, when hydraulic pressure surpasses the setup pressure value of relief valve, the drainage system of pressure measuring chamber can be discharged pressure measuring chamber with water automatically, thereby guarantees the accuracy of gas pressure measurement system measurement gas pressure.
The utility model is realized by the following technical solutions: the active quick measuring cell of pit shaft exposed coal, comprise capsule compression system, high-pressure slip-casting system, drainage system and piezometry system, described capsule compression system comprises two high pressure capsules, connect connecting water pipe and the Manual pressure test pump of two high pressure capsule wall body interlayers, the pressure pipe of described Manual pressure test pump is connected with the joint of connecting water pipe outer end; Described high-pressure slip-casting system comprises that the inner slip casting four that one way valve is installed is in charge of, and described one way valve is located between two high pressure capsules; Described drainage system comprise an inner end be equipped with slip through the net, pressure measuring chamber relief tube that the outer end is equipped with relief valve; Described piezometry system comprises the threeway pressure meter, and described threeway pressure meter is connected with high pressure capsule by the gas tube connector, and two high pressure capsules are connected its inner chamber by the gas tube connector, and the front end of described high pressure capsule is provided with and filters mouthful.
The beneficial effects of the utility model are: the active quick pressure measurement etiquette of pit shaft exposed coal has been economized the slip casting process time twice, adopt active pressure measurement, reduced the pressure observation time, if artesian water is arranged in pressure measuring chamber, when hydraulic pressure surpasses the setup pressure value of relief valve, the drainage system of pressure measuring chamber can be discharged pressure measuring chamber with water automatically, thereby guarantees the accuracy of gas pressure measurement system measurement gas pressure.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the structural representation of the active quick measuring cell of pit shaft exposed coal.
In figure, 1. filter screen, 2. pressure measuring chamber relief tube, 3. high pressure capsule, 4. connecting water pipe, 5. gas tube connector, 6. one way valve, 7. slip casting four is in charge of, 8. relief valve, 9. pressure pipe, 10. Manual pressure test pump, 11. threeway pressure meters.
The specific embodiment
Can be found out by accompanying drawing, the active quick measuring cell of pit shaft exposed coal, comprise capsule compression system, high-pressure slip-casting system, drainage system and piezometry system, described capsule compression system comprises two high pressure capsules 3, the connecting water pipe 4 and the Manual pressure test pump 10 that connect two high pressure capsule 3 wall body interlayers, the pressure pipe 9 of described Manual pressure test pump 10 is connected with the joint of connecting water pipe 4 outer ends; Described high-pressure slip-casting system comprises that the inner slip casting four that one way valve 6 is installed is in charge of 7, and described one way valve 6 is located between two high pressure capsules 3; Described drainage system comprise an inner end be equipped with slip through the net 1, pressure measuring chamber relief tube 2 that the outer end is equipped with relief valve 8; Described piezometry system comprises threeway pressure meter 11, and described threeway pressure meter 11 is connected with high pressure capsule 3 by gas tube connector 5, and two high pressure capsules 3 are connected its inner chambers by gas tube connector 5, and the front end of described high pressure capsule 3 is provided with and filters mouthful.
During pressure measurement, direct punching 2-3m to the coal seam, this measuring cell is filled in boring, guaranteed that front end high capsule 3 enters coal body fully, will be filled with high pressure (10Mpa) water by the capsule compression system in high pressure capsule 3, utricule is expanded, then by filling system, inject high pressure (12Mpa) cement paste in the space between double-capsule, be filled with the 1Mpa inert gas by the gas pressure measurement system in pressure measuring chamber at last, adopt active pressure measurement, observe the pressure meter situation of change.
Claims (1)
1. active quick measuring cell of pit shaft exposed coal, comprise capsule compression system, high-pressure slip-casting system, drainage system and piezometry system, it is characterized in that: described capsule compression system comprises two high pressure capsules (3), the connecting water pipe (4) and the Manual pressure test pump (10) that connect two high pressure capsules (3) wall body interlayer, the pressure pipe (9) of described Manual pressure test pump (10) is connected with the joint of connecting water pipe (4) outer end; Described high-pressure slip-casting system comprises that the inner slip casting four that one way valve (6) is installed is in charge of (7), and described one way valve (6) is located between two high pressure capsules (3); Described drainage system comprises that an inner end is equipped with the pressure measuring chamber relief tube (2) that slip through the net (1), outer end are equipped with relief valve (8); Described piezometry system comprises threeway pressure meter (11), described threeway pressure meter (11) is connected with high pressure capsule (3) by gas tube connector (5), two high pressure capsules (3) are connected its inner chamber by gas tube connector (5), and the front end of described high pressure capsule (3) is provided with and filters mouth.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661666 CN202946147U (en) | 2012-12-05 | 2012-12-05 | Active rapid pressure gauge for shaft coal uncovering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661666 CN202946147U (en) | 2012-12-05 | 2012-12-05 | Active rapid pressure gauge for shaft coal uncovering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946147U true CN202946147U (en) | 2013-05-22 |
Family
ID=48421854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220661666 Expired - Fee Related CN202946147U (en) | 2012-12-05 | 2012-12-05 | Active rapid pressure gauge for shaft coal uncovering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941435A (en) * | 2017-12-27 | 2018-04-20 | 日丰企业（佛山）有限公司 | Manual pressure test pump test device and method |
| CN108489816A (en) * | 2018-03-16 | 2018-09-04 | 恺信国际检测认证有限公司 | A kind of depth of water compression testing device and application method |
-
2012
- 2012-12-05 CN CN 201220661666 patent/CN202946147U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941435A (en) * | 2017-12-27 | 2018-04-20 | 日丰企业（佛山）有限公司 | Manual pressure test pump test device and method |
| CN107941435B (en) * | 2017-12-27 | 2020-01-31 | 日丰企业（佛山）有限公司 | Manual pressure test pump testing device and method |
| CN108489816A (en) * | 2018-03-16 | 2018-09-04 | 恺信国际检测认证有限公司 | A kind of depth of water compression testing device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131205 |