CN201412140Y - Bedding hole coal bed gas pressure measuring device - Google Patents
Bedding hole coal bed gas pressure measuring device Download PDFInfo
- Publication number
- CN201412140Y CN201412140Y CN2009200008544U CN200920000854U CN201412140Y CN 201412140 Y CN201412140 Y CN 201412140Y CN 2009200008544 U CN2009200008544 U CN 2009200008544U CN 200920000854 U CN200920000854 U CN 200920000854U CN 201412140 Y CN201412140 Y CN 201412140Y
- Authority
- CN
- China
- Prior art keywords
- capsule
- hole
- gas pressure
- pvc tube
- coal bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title abstract description 13
- 239000002775 capsule Substances 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000004604 Blowing Agent Substances 0.000 claims description 8
- 238000009530 blood pressure measurement Methods 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 230000006378 damage Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a bedding hole coal bed gas pressure measuring device, which comprises a PVC tube and a capsule hole sealing system arranged in the PVC tube. Vesicant is wound on the outerlayer of the PVC tube, and after being expanded and foamed, the vesicant tightly seals the clearance between the outer wall of the PVC tube and the wall of the hole. The interior of the PVC tube is plugged through the capsule sealing system; the pressure of the emulsified liquid filled in the capsule is 1.5MPa larger than the gas pressure; and the high-pressure emulsified liquid enables the capsule to expand to plug the PVC tube. The interior and the exterior of the PVC tube tightly are sealed to prevent gas leakage, so the coal bed gas pressure value measured can be true and reliable. The bedding hole coal bed gas pressure measuring device is applicable for measuring gas pressure in soft rock or coal bed drilling and hole sealing.
Description
Technical field
The utility model relates to a kind of coal seam and drills and utilize behind the sealing of hole measuring instrument to measure the device of boring coal-bed gas pressure or its change curve.
Background technology
Safety regulations in coal mine requires will carry out the detection of gas pressure before seam mining, composes the situation of depositing for understanding coal-bed gas, estimates colliery exploitation condition, determines that the development and use of safety of coal mines measure and gas provide foundation.Before detecting gas pressure, to beat detected coal seam earlier and detect the hole, will guarantee to detect the sealing in hole in the testing process.There are two kinds of methods to carry out shutoff at present to boring, a kind of is to inject materials such as yellow mud, mortar and cement in detecting the hole, these materials are difficult to infiltrate the crack of detecting the hole periphery, its sealing often can not reach requirement, makes the gas pressure value that detects can not truly reflect the actual gas pressure value in coal seam.Another kind method is to utilize the sealing of hole principle of " solid sealing liquid body; liquid envelope gas ", general capsule-pressure mucus the sealing of hole that adopts, this sealing of hole mode has guaranteed to detect the seal in hole, but make boring destruction cause the hole of collapsing owing to detect the stress effect of hole periphery, the capsule that is used to seal directly contacts with hole wall and is difficult to it is extracted out, and the capsule after the extraction also damages to some extent and causes reduce greatly application life.
The utility model content
The purpose of this utility model is to provide a kind of and measures the coal-bed gas pressure device along layer hole, this device can tight shutoff detect the hole, solve the steadiness problem of boring during pressure measurement, and after finishing, pressure measurement can extract the capsule plugging device easily out, increase the access times of capsule, simultaneously accurately and reliably under the prerequisite, reduce the cost of sealing of hole pressure measurement widely in the coal-bed gas pressure value that guarantees to measure.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of along layer hole mensuration coal-bed gas pressure device, this device is made up of the pvc pipe of skin winding blowing agent and the capsule sealing of hole system that is installed in the pvc pipe.The outer blowing agent that twines of pvc pipe is used to seal the gap between pvc pipe outer wall and the drill hole wall and the crack of drill hole wall itself.Capsule sealing of hole system in the pvc pipe is used for the shutoff pvc pipe, and external seal is tight in the pvc pipe, prevents the gas leakage.The blowing agent material may be selected to be that horse is beautiful to loose etc.
Described capsule sealing of hole system comprises capsule, capsule discount, capsule seal nipple.The capsule two ends are by the joint shutoff, be pasted with circular rubber cushion to guarantee the joint sealing at the discount end face, joint leaves screwed hole, is provided with a high-voltage tube in the capsule, one end of high-voltage tube is connected with the pressure measurement tube head by high-pressure pipe connector, and the other end is communicated with high-voltage tube by screwed pipe.Screwed pipe one end places in the capsule, and the other end is communicated with high-voltage tube, and emulsion makes capsule expand the shutoff pvc pipe by high-voltage tube and screwed pipe.Pillar is installed on the joint, prevents that high-voltage tube is impaired.
This coal-bed gas pressure tester adopts the mode of double-layer seal, promptly in detecting the hole, place pvc pipe with the hole depth equivalent length, keep about 20cm distance as the methane gas chamber at the bottom of pvc pipe end and the hole, use blowing agent to realize PVC outer tube wall and the sealing that detects hole wall, utilize the characteristics in the smooth no crack of pvc pipe wall, adopt capsule shutoff pvc pipe road, capsule expands after pressurization and closely contacts with the PVC inner tubal wall, the emulsion pressure that charges into capsule makes the pvc pipe shutoff tight greater than gas pressure 1.5MPa.The leakage of gas has been stopped in the inside and outside sealing of pvc pipe, thereby makes the gas pressure value of measuring equal the real gas pressure value in coal seam.
The beneficial effects of the utility model are: this device has good sealing effect through experimental test, and is simple to operate, capsule damages little, and the gas pressure value of mensuration is accurate, the low cost and other advantages that sealing of hole detects, make things convenient for the loading and unloading of working site under the coal mine, saved the time of pressure measurement.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, a suitable layer of hole mensuration coal-bed gas pressure device of the present utility model twines the pvc pipe (2) of blowing agent by skin and is installed in the interior capsule sealing of hole system (25) of pvc pipe (2) and form.Capsule sealing of hole system (25) comprises capsule (8), capsule discount (7) (11), capsule seal nipple (5) (14) (20).Capsule (8) one ends are by joint (5) shutoff, the other end is by joint (14) and (20) shutoff, discount (11) end face is pasted with circular rubber cushion (21), screwed hole is left in joint (5), (14), establish a high-voltage tube (9) in the capsule (8), one end of high-voltage tube (9) is connected with pressure measurement tube head (4) by high-pressure pipe connector (6), and the other end is communicated with high-voltage tube (17) by screwed pipe (13); Screwed pipe (22) one ends place in the capsule (8), and the other end is communicated with high-voltage tube (24), and pillar (16) is installed on the joint (14).
During use, earlier the outer beautiful blowing agent diffusing or similar functions of one deck horse that twines of pvc pipe (2) is pushed boring, pvc pipe (2) lateral distance boring end face certain distance is to form gas chamber (1).Blowing agent expanded in 15 minutes, shutoff pvc pipe surface and the space of drill hole wall and the crack on the infiltration sealing drill hole wall.Capsule sealing of hole system (25) is put into boring, and pressure measurement tube head (4) is apart from pvc pipe (2) end face certain distance, and emulsion charges into capsule (8) by high-voltage tube (24), makes capsule (8) expansion seal fully with pvc pipe (2) inwall.Charge into high pressure nitrogen to high-pressure hose (17), pressure is slightly larger than gas pressure 0.1 ~ 0.4MPa, the pressure gauge that observation is connected with high-pressure hose, the gas pressure value in the force value coal seam when the pressure gauge reading is constant.
Claims (1)
1, a kind of along layer hole mensuration coal-bed gas pressure device, it is characterized in that: this device twines the pvc pipe (2) of blowing agent by skin and is installed in the interior capsule sealing of hole system (25) of pvc pipe (2) to be formed; Described capsule sealing of hole system (25) comprises capsule (8), capsule discount (7) (11), capsule seal nipple (5) (14) (20); Capsule (8) one ends are by joint (5) shutoff, the other end is by joint (14) and (20) shutoff, discount (11) end face is pasted with circular rubber cushion (21), screwed hole is left in joint (5), (14), establish a high-voltage tube (9) in the capsule (8), one end of high-voltage tube (9) is connected with pressure measurement tube head (4) by high-pressure pipe connector (6), and the other end is communicated with high-voltage tube (17) by screwed pipe (13); Screwed pipe (22) one ends place in the capsule (8), and the other end is communicated with high-voltage tube (24), and pillar (16) is installed on the joint (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200008544U CN201412140Y (en) | 2009-01-13 | 2009-01-13 | Bedding hole coal bed gas pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200008544U CN201412140Y (en) | 2009-01-13 | 2009-01-13 | Bedding hole coal bed gas pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412140Y true CN201412140Y (en) | 2010-02-24 |
Family
ID=41714026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200008544U Expired - Lifetime CN201412140Y (en) | 2009-01-13 | 2009-01-13 | Bedding hole coal bed gas pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412140Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832128A (en) * | 2010-04-30 | 2010-09-15 | 华北科技学院 | Active device and method for measuring pressure of coal-bed gas |
| CN102003173A (en) * | 2010-10-29 | 2011-04-06 | 北京中矿天安科技发展有限公司 | System and method for automatically measuring and recording gas pressure during coal seam hole sealing |
| CN102230375A (en) * | 2011-06-10 | 2011-11-02 | 中国矿业大学 | Method and device for monitoring coal bed gas parameter in real time |
| CN102337920A (en) * | 2011-09-14 | 2012-02-01 | 成都晟鑫机电设备有限公司 | Gas and dust collecting device |
| CN102937011A (en) * | 2012-12-03 | 2013-02-20 | 中国矿业大学 | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group |
| CN103912262A (en) * | 2014-01-26 | 2014-07-09 | 中国矿业大学 | Radial volume deformation measuring device for bedding drilling |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
| CN107859500A (en) * | 2017-10-13 | 2018-03-30 | 大连理工大学 | Rock body quality of mine drilling transmission increasing gas closure unit and measurement system |
| CN108412486A (en) * | 2018-03-15 | 2018-08-17 | 贵州大学 | A kind of one hole multistage gas pressure real-time monitoring device of mine and its installation method |
| CN114575828A (en) * | 2022-03-18 | 2022-06-03 | 平顶山天安煤业股份有限公司 | Remote deep hole coal seam gas pressure measuring device and using method |
| CN114809915A (en) * | 2022-04-15 | 2022-07-29 | 河南理工大学 | An integrated device and pressure measurement method for drilling, sealing, and pressure measurement of deep and long holes in coal seams |
-
2009
- 2009-01-13 CN CN2009200008544U patent/CN201412140Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832128B (en) * | 2010-04-30 | 2013-07-17 | 华北科技学院 | Active device and method for measuring pressure of coal-bed gas |
| CN101832128A (en) * | 2010-04-30 | 2010-09-15 | 华北科技学院 | Active device and method for measuring pressure of coal-bed gas |
| CN102003173A (en) * | 2010-10-29 | 2011-04-06 | 北京中矿天安科技发展有限公司 | System and method for automatically measuring and recording gas pressure during coal seam hole sealing |
| CN102003173B (en) * | 2010-10-29 | 2013-01-23 | 北京中矿天安科技发展有限公司 | System and method for automatically measuring and recording gas pressure during coal seam hole sealing |
| CN102230375A (en) * | 2011-06-10 | 2011-11-02 | 中国矿业大学 | Method and device for monitoring coal bed gas parameter in real time |
| CN102337920A (en) * | 2011-09-14 | 2012-02-01 | 成都晟鑫机电设备有限公司 | Gas and dust collecting device |
| CN102337920B (en) * | 2011-09-14 | 2014-04-02 | 成都晟鑫机电设备有限公司 | Gas and dust collecting device |
| CN102937011B (en) * | 2012-12-03 | 2015-10-21 | 中国矿业大学 | Mash gas pumping drilling group regional crack field secondary grouting plugging device and method |
| CN102937011A (en) * | 2012-12-03 | 2013-02-20 | 中国矿业大学 | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group |
| CN103912262A (en) * | 2014-01-26 | 2014-07-09 | 中国矿业大学 | Radial volume deformation measuring device for bedding drilling |
| CN103912262B (en) * | 2014-01-26 | 2016-08-17 | 中国矿业大学 | A kind of concordant boring radially device for measuring volume variation |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
| CN105927214B (en) * | 2016-05-19 | 2022-11-11 | 六盘水师范学院 | An accurate measurement method of coal seam gas pressure |
| CN107859500A (en) * | 2017-10-13 | 2018-03-30 | 大连理工大学 | Rock body quality of mine drilling transmission increasing gas closure unit and measurement system |
| CN108412486A (en) * | 2018-03-15 | 2018-08-17 | 贵州大学 | A kind of one hole multistage gas pressure real-time monitoring device of mine and its installation method |
| CN114575828A (en) * | 2022-03-18 | 2022-06-03 | 平顶山天安煤业股份有限公司 | Remote deep hole coal seam gas pressure measuring device and using method |
| CN114809915A (en) * | 2022-04-15 | 2022-07-29 | 河南理工大学 | An integrated device and pressure measurement method for drilling, sealing, and pressure measurement of deep and long holes in coal seams |
| CN114809915B (en) * | 2022-04-15 | 2022-11-22 | 河南理工大学 | An integrated device and pressure measurement method for deep and long hole drilling, sealing, and pressure measurement in coal seams |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ling Biaocan Document name: Notification to Pay the Fees |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |
|
| CX01 | Expiry of patent term |