CN202900256U - Draining device for measuring elevation angel hole coal bed gas pressure - Google Patents
Draining device for measuring elevation angel hole coal bed gas pressure Download PDFInfo
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- CN202900256U CN202900256U CN 201220542539 CN201220542539U CN202900256U CN 202900256 U CN202900256 U CN 202900256U CN 201220542539 CN201220542539 CN 201220542539 CN 201220542539 U CN201220542539 U CN 201220542539U CN 202900256 U CN202900256 U CN 202900256U
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- coal bed
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Abstract
The utility model discloses a draining device for measuring elevation angel hole coal bed gas pressure. The draining device for measuring the elevation angel hole coal bed gas pressure comprises a coal bed gas chamber and a pressure measuring pipe, wherein the top end of the pressure measuring pipe is arranged inside the coal bed gas chamber, the bottom end of the pressure measuring pipe is arranged outside a rock mass layer, and a water outlet pipe and a pressure measuring device are arranged on the pressure measuring pipe outside the rock mass layer. An inner plug is arranged at the position of an opening of the coal bed gas chamber, an outer plug is arranged at the position of an opening of a rock air chamber, a grouting pipe and a thick liquid returning pipe are communicated between the inner plug and the outer plug, and cement grout is further arranged between the inner plug and the outer plug. The water outlet pipe, the grouting pipe and the thick liquid returning pipe are all provided with valves. The draining device for measuring the elevation angel hole coal bed gas pressure is simple in structure, convenient to operate, good in hole sealing effect, low in cost, and capable of timely draining out a great deal of water which is accumulated inside a pressure measuring gas chamber when the shape of an elevation angle is measured, thereby improving the accuracy for measuring the coal bed gas pressure.
Description
Technical field
The utility model relates to the measuring technique of gas pressure in coal seam field, relates in particular to a kind of jettison gear for elevation angle hole coal bed gas piezometry.
Background technology
Coal-bed gas pressure is one of important gas parameter, and gas pressure is larger, and coal seam gas-bearing capacity is larger, and coal and gas outburst risk are also larger.Determination of coal seam gas pressure is one of important process of expiloration of coal mines and exploitation, keeps the safety in production significant to effective improvement gas, prediction outburst hazard, assurance.Its assay method has direct manometric method and method of indirectly measuring blood pressure, comprises yellow mud sealing of hole, light water mud sealing of hole, cushion rubber-mucus sealing of hole, polyurethane foam sealing of hole, the original gas bearing capacity method of extraordinary expansive cement sealing of hole and coal seam, residual gas content method etc.There is application in the many coal mining enterprises of the whole bag of tricks, but owing to not having finished product external member and the operation sequence of standard, all exist the not high problem of accuracy, and measured next gas pressure difference is very large.Determination of coal seam gas pressure requires suitable standard, when the hole coal bed gas piezometry of the elevation angle, has the problem of a draining, if water is arranged in piezometer tube, water column is high will be influential to the gas pressure measurement value, and the determination of coal seam gas pressure value is inaccurate.
Summary of the invention
The utility model purpose is to solve the aforementioned problems in the prior, and provides a kind of easy and simple to handle, measures the jettison gear that is used for accurately elevation angle hole coal bed gas piezometry.
The utility model is for achieving the above object, the technological means that adopts is, a kind of jettison gear for elevation angle hole coal bed gas piezometry, comprise coal seam air chamber and piezometer tube, it is indoor that the top of described piezometer tube is located at coal bed gas, its bottom is located at the lithosphere outside, and the piezometer tube of described lithosphere outside is provided with outlet pipe and pressure tester; Block in air chamber mouth place, described coal seam is provided with, described rock air chamber mouth place is provided with outer blocking, and is communicated with Grouting Pipe and return pipe between blocking and block in described outward, also is provided with cement grout between blocking and block in described outward; Be equipped with valve on described outlet pipe, Grouting Pipe and the return pipe.
As preferably, distance 0.5 meter, described piezometer tube top has been opened a plurality of air inlets and has been wrapped up with gauze.
As preferably, described valve is ball valve.
As preferably, described outer blocking is quick hardening cement.
The utility model beneficial effect is: simple in structure, easy to operate; Sealing of hole is effective, and cost is lower; Elevation angle type is measured, and can in time discharge a large amount of water of pressure measurement air chamber inner accumulated, thereby improve the accuracy of determination of coal seam gas pressure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model structural representation.
Among the figure: 1, coal seam air chamber, 2, piezometer tube, 3, lithosphere, 4, valve, 5, coal seam air chamber mouth, 6, in block 7, rock air chamber mouth, 8, block, 9, Grouting Pipe, 10, return pipe, 21, outlet pipe, 22, pressure tester, 23, air inlet outward.
The specific embodiment
A kind of jettison gear for elevation angle hole coal bed gas piezometry as shown in Figure 1, comprise coal seam air chamber 1 and piezometer tube 2, the top of described piezometer tube 2 is located in the coal seam air chamber 1, its bottom is located at lithosphere 3 outsides, and the piezometer tube 2 of described lithosphere 3 outsides is provided with outlet pipe 21 and pressure tester 22; Block 6 in air chamber mouth 5 places, described coal seam are provided with, described rock air chamber mouth 7 places are provided with and outer block 8, block in described 6 and block 8 outward between be communicated with Grouting Pipe 9 and return pipe 10, block in described 6 and block 8 outward between also be provided with cement grout; Be equipped with valve 4 on described outlet pipe 21, Grouting Pipe 9 and the return pipe 10.
As preferably, distance 0.5 meter, described piezometer tube 2 tops has been opened a plurality of air inlets 23 and has been wrapped up with gauze.
As preferably, described valve 4 is ball valve.
As preferably, describedly block 8 and be quick hardening cement outward.
After the cleaning of coal seam air chamber 1 usefulness air line, connect piezometer tube 2, Grouting Pipe 9 and return pipe 10 are put into from rock air chamber mouth 7, after having connected pipeline, block 6 in the use and block coal seam air chamber mouth 5, with blocking 8 shutoff rock air chamber mouths 7 outward at least more than the 1m, be used for fixedly piezometer tube 2, Grouting Pipe 9 and return pipe 10; Then inject the rapid hardening expansive cement slurries that prepare from Grouting Pipe 9.Piezometer tube 2 in lithosphere 3 outsides is provided with outlet pipe 21 and pressure tester 22, and outlet pipe 21 is provided with valve 4.Like this, when pressure tester 22 readings reach certain position, slowly open the valve 4 on the outlet pipe 21, see if there is water out, slowly open, if there is gas to discharge, then close, the numerical value that pressure tester 22 at this moment shows is the actual numerical value of the gas pressure in the coal seam air chamber 1 at once.If there are flowing out, slowly emit water, wait water to discharge after, immediate action valve 4, the data that at this moment show also are the actual numerical values of the gas pressure in the coal seam air chamber 1.Water in the coal seam air chamber 1 can be discharged from, and so just can in time discharge a large amount of water of coal seam air chamber 1 inner accumulated, thereby improve the accuracy of determination of coal seam gas pressure.
The above; be the specific embodiment of the present utility model only, be not limited to this, anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. jettison gear that is used for elevation angle hole coal bed gas piezometry, it is characterized in that: comprise coal seam air chamber (1) and piezometer tube (2), the top of described piezometer tube (2) is located in the coal seam air chamber (1), its bottom is located at lithosphere (3) outside, and the outside piezometer tube (2) of described lithosphere (3) is provided with outlet pipe (21) and pressure tester (22); Described coal seam air chamber mouth (5) blocks (6) in locating to be provided with, described rock air chamber mouth (7) locates to be provided with outer block (8), block (6) in described and block outward and be communicated with Grouting Pipe (9) and return pipe (10) between (8), block (6) and block outward in described and also be provided with cement grout between (8); Be equipped with valve (4) on described outlet pipe (21), Grouting Pipe (9) and the return pipe (10).
2. the jettison gear for elevation angle hole coal bed gas piezometry according to claim 1 is characterized in that: distance 0.5 meter, described piezometer tube (2) top has been opened a plurality of air inlets (23) and has been wrapped up with gauze.
3. the jettison gear for elevation angle hole coal bed gas piezometry according to claim 1, it is characterized in that: described valve (4) is ball valve.
4. the jettison gear for elevation angle hole coal bed gas piezometry according to claim 1 is characterized in that: block (8) outside described and be quick hardening cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542539 CN202900256U (en) | 2012-10-23 | 2012-10-23 | Draining device for measuring elevation angel hole coal bed gas pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542539 CN202900256U (en) | 2012-10-23 | 2012-10-23 | Draining device for measuring elevation angel hole coal bed gas pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900256U true CN202900256U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220542539 Expired - Lifetime CN202900256U (en) | 2012-10-23 | 2012-10-23 | Draining device for measuring elevation angel hole coal bed gas pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN202900256U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306721A (en) * | 2013-06-18 | 2013-09-18 | 中铁隧道集团有限公司 | Sealing device and method of pilot vacuum downcast pipe end head |
| CN103742115A (en) * | 2013-12-18 | 2014-04-23 | 中国矿业大学 | Underground coal mine fracture sealing device and method |
| CN107014554A (en) * | 2017-06-01 | 2017-08-04 | 华北科技学院 | Gas parametric measurement probe in a kind of coal seam |
| CN107524435A (en) * | 2017-10-09 | 2017-12-29 | 开滦(集团)有限责任公司技术中心 | Aqueous determination of coal seam gas pressure device and assay method |
| CN109236375A (en) * | 2018-11-13 | 2019-01-18 | 煤科集团沈阳研究院有限公司 | Water column method for testing length and test device in gas pressure measurement drilling |
| CN110017168A (en) * | 2019-03-25 | 2019-07-16 | 淮北矿业股份有限公司 | A kind of lower exploiting field gas pressure on-Line Monitor Device and on-line monitoring method |
| CN111456721A (en) * | 2020-04-16 | 2020-07-28 | 西安科技大学 | Device and method for measuring gas pressure of multistage air bag rapid hole sealing |
-
2012
- 2012-10-23 CN CN 201220542539 patent/CN202900256U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306721A (en) * | 2013-06-18 | 2013-09-18 | 中铁隧道集团有限公司 | Sealing device and method of pilot vacuum downcast pipe end head |
| CN103306721B (en) * | 2013-06-18 | 2016-04-20 | 中铁隧道集团有限公司 | A kind of sealing device of pilot vacuum downcast pipe end head and method thereof |
| CN103742115A (en) * | 2013-12-18 | 2014-04-23 | 中国矿业大学 | Underground coal mine fracture sealing device and method |
| CN103742115B (en) * | 2013-12-18 | 2016-03-23 | 中国矿业大学 | A kind of coal mine underground fracturing sealing device and method |
| CN107014554A (en) * | 2017-06-01 | 2017-08-04 | 华北科技学院 | Gas parametric measurement probe in a kind of coal seam |
| CN107524435A (en) * | 2017-10-09 | 2017-12-29 | 开滦(集团)有限责任公司技术中心 | Aqueous determination of coal seam gas pressure device and assay method |
| CN109236375A (en) * | 2018-11-13 | 2019-01-18 | 煤科集团沈阳研究院有限公司 | Water column method for testing length and test device in gas pressure measurement drilling |
| CN110017168A (en) * | 2019-03-25 | 2019-07-16 | 淮北矿业股份有限公司 | A kind of lower exploiting field gas pressure on-Line Monitor Device and on-line monitoring method |
| CN111456721A (en) * | 2020-04-16 | 2020-07-28 | 西安科技大学 | Device and method for measuring gas pressure of multistage air bag rapid hole sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd. Assignor: Cai Changhui Contract record no.: 2013340000119 Denomination of utility model: Draining device for measuring elevation angel hole coal bed gas pressure Granted publication date: 20130424 License type: Exclusive License Record date: 20130723 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU JINDING TECHNOLOGY SECURITY CO., LTD. Free format text: FORMER OWNER: CAI CHANGHUI Effective date: 20150217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150217 Address after: 234000 north side of Jinhe Road, west of Jinhai Road, Suzhou Development Zone, Anhui Patentee after: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd. Address before: 234000 road in Anhui Province, Suzhou City Yongqiao District of Suzhou city science and Technology Bureau five floor Patentee before: Cai Changhui |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd. Assignor: Cai Changhui Contract record no.: 2013340000119 Date of cancellation: 20150202 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |