CN204899914U - Liquid gas piezometry appearance is annotated to negative pressure - Google Patents
Liquid gas piezometry appearance is annotated to negative pressure Download PDFInfo
- Publication number
- CN204899914U CN204899914U CN201520634430.9U CN201520634430U CN204899914U CN 204899914 U CN204899914 U CN 204899914U CN 201520634430 U CN201520634430 U CN 201520634430U CN 204899914 U CN204899914 U CN 204899914U
- Authority
- CN
- China
- Prior art keywords
- mucus
- capsule
- gas
- pipe
- pump
- 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 - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a liquid gas piezometry appearance is annotated to negative pressure, include two at least capsules being connected by the stay tube, space and pore wall formation mucus room between the capsule of drilling back are filled in to the capsule, inner end capsule and bottom of hole formation gas room, be equipped with the mucus pipe in the mucus room, capsule to the outer joint mucus pump of driling is passed to the outer end of mucus pipe, the gas room is equipped with the gas pipe, and it is outside that the gas pipe passes capsule to drilling, is equipped with the gas manometer on the gas pipe, the capsule is equipped with the water pipe, and the outer end of water pipe is connected and is added pressure water pump, the mucus room still is equipped with the mucus pipe, and mucus pump and vacuum pump are connected respectively through the tee bend outside passing capsule to drilling in the outer end of mucus pipe, and the mucus pump is parallelly connected with the vacuum pump to be equipped with the valve respectively, this apparatus utilizes earlier the space of vacuum pump between to two capsules to carry out the evacuation before pouring into mucus into, and the air between two capsules of discharging improves mucus pressure, and then the accuracy of the survey of improvement gas pressure.
Description
Technical field
The utility model relates to the gas pressure measurement instrument that a kind of coal mine underground coal bed negative pressure injects mucus, especially a kind of negative pressure liquid injection gas pressure measurement instrument.
Background technology
Traditional mucus injection mode is injected by pressure pump, before injection mucus, because boring seals by two capsules, therefore the space between two capsules is dead space, about 1 atmospheric air is there is in this space, this portion gas cannot be discharged when mucus is injected, the mucus pressure causing final display may not be real mucus pressure, may be the blend pressure of mucus and air.If mucus fails to be full of this space or actual pressure deficiency, then can affect the effect in mucus sealing borehole circumference crack, gas in pressure measuring chamber leaks in tunnel by borehole circumference crack, thus affect gas pressure measurement effect, even causing the erroneous judgement to coal-bed gas pressure, will major hidden danger be formed when carrying out coal and gas outburst prominent controlling.
Utility model content
For above-mentioned prior art Problems existing, the utility model provides a kind of negative pressure liquid injection gas pressure measurement instrument, before injection mucus, first utilize vacuum pump to vacuumize the space between two capsules, discharge the air between two capsules, improve the measurement accuracy of mucus pressure and gas pressure.
The utility model is achieved through the following technical solutions: a kind of negative pressure liquid injection gas pressure measurement instrument, comprise at least two capsules connected by stay pipe, space after boring filled in by capsule between capsule and hole wall form mucus room, and innermost end capsule forms gas room with the boring end; Be provided with mucilage tube in described mucus room, the outer end of mucilage tube connects viscose pump through capsule to boring is outer; Described gas room is provided with gas pipe, and gas pipe is through capsule to outside of holing, and gas pipe is provided with gas pressure table; Described capsule is provided with water pipe, and the outer end of water pipe connects pressure pump; Described mucus room is also provided with mucilage tube, and the outer end of mucilage tube is through capsule to outside boring, and connect viscose pump and vacuum pump respectively by threeway, viscose pump is in parallel with vacuum pump, and is respectively equipped with valve.
During use, first by support bar, the capsule be connected to each other is pushed to pre-position in boring, then utilize pressure pump to pressurize to capsule, after making its dilatancy, boring is sealed; Then valve one is made to be in closed condition, open valve two, by vacuum pump, the space between two capsules is vacuumized, discharge the air of mucus room, valve-off two afterwards, opens valve one, recycling viscose pump is filled with mucus toward mucus room (length is 1.5m), injection pressure is generally the mucus of 3-4MPa with shutoff borehole circumference crack, and finally outside hole, gas pipe 5 installs gas pressure table, can record coal-bed gas pressure after a period of time balance.
The beneficial effects of the utility model: first utilize vacuum pump to vacuumize the space between two capsules before injection mucus, discharge the air between two capsules, improve mucus pressure, and then the accuracy of the mensuration of raising gas pressure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1. gas room, 2. pressure measurement wireway end protective cover, 3. capsule, 4. mucus room, 5. gas pipe, 6. water pipe, 7. stay pipe, 8. mucilage tube, 9. gas pressure table, 10. water pump, 11. viscose pumps, 12. vacuum pumps, 13. valve one, 14. valves two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, a kind of negative pressure liquid injection gas pressure measurement instrument, comprises at least two capsules 3 connected by stay pipe 7, and the space after boring filled in by capsule 3 between capsule 3 and hole wall form mucus room 4, and innermost end capsule 3 forms gas room 1 with the boring end; Described gas room 1 is provided with gas pipe 5, and gas pipe 5 is outside to boring through capsule 3, and gas pipe 5 is provided with gas pressure table 9; Described capsule 3 is provided with water pipe 6, and the outer end of water pipe 6 connects pressure pump 10; Be provided with mucilage tube 8 in described mucus room 4, the outer end of mucilage tube 8 to outside boring, respectively connects viscose pump 11 and vacuum pump 12 by threeway through capsule 3; Viscose pump 11 is in parallel with vacuum pump 12, and viscose pump 11 is provided with valve 1, and vacuum pump 12 is provided with valve 2 14.
During use, first by support bar 7, the capsule 3 be connected to each other is pushed to pre-position in boring, then utilize pressure pump 10 pairs of capsules 3 to pressurize, after making its dilatancy, boring is sealed; Then valve 1 is made to be in closed condition, open valve 2 14, by vacuum pump 12, the space between two capsules 3 is vacuumized, discharge the air of mucus room 4, valve-off 2 14 afterwards, opens valve 1, recycling viscose pump 11 is 1.5m toward mucus room 4(length) be filled with mucus, injection pressure is generally the mucus of 3-4MPa with shutoff borehole circumference crack, and finally outside hole, gas pipe 5 installs gas pressure table 9, can record coal-bed gas pressure after a period of time balance.
Claims (2)
1. a negative pressure liquid injection gas pressure measurement instrument, comprises two capsules connected by stay pipe, and the space after boring filled in by capsule between capsule and hole wall form mucus room, and inner end capsule forms gas room with the boring end; Described gas room is provided with gas pipe, and gas pipe is through capsule to outside of holing, and gas pipe is provided with gas pressure table; Described capsule is provided with water pipe, and the outer end of water pipe connects pressure pump; It is characterized in that, be provided with mucilage tube in described mucus room, the outer end of mucilage tube connects viscose pump and vacuum pump through capsule to boring is outer, and viscose pump is in parallel with vacuum pump, and is respectively equipped with valve.
2. a kind of negative pressure liquid injection gas pressure measurement instrument according to claim 1, is characterized in that: vacuum pump, viscose pump and mucilage tube, are connected to outside boring by threeway through capsule by the outer end of mucilage tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634430.9U CN204899914U (en) | 2015-08-21 | 2015-08-21 | Liquid gas piezometry appearance is annotated to negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634430.9U CN204899914U (en) | 2015-08-21 | 2015-08-21 | Liquid gas piezometry appearance is annotated to negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899914U true CN204899914U (en) | 2015-12-23 |
Family
ID=54922100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520634430.9U Expired - Fee Related CN204899914U (en) | 2015-08-21 | 2015-08-21 | Liquid gas piezometry appearance is annotated to negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899914U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558990A (en) * | 2017-08-17 | 2018-01-09 | 重庆大学 | A kind of high methane cherry coal drilling production quantity of slag and the test device of drilling deformation |
| CN108457643A (en) * | 2018-02-05 | 2018-08-28 | 中国矿业大学 | A kind of water enchroachment (invasion) drilling gas piezometry method based on vacuum condition |
| CN109488250A (en) * | 2018-12-17 | 2019-03-19 | 煤科集团沈阳研究院有限公司 | Hole sealing device and method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic |
| WO2019100732A1 (en) * | 2017-11-24 | 2019-05-31 | 山东科技大学 | Device and method for coal seam gas pressure measurement and dynamic self-balancing pressurized hole sealing |
-
2015
- 2015-08-21 CN CN201520634430.9U patent/CN204899914U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558990A (en) * | 2017-08-17 | 2018-01-09 | 重庆大学 | A kind of high methane cherry coal drilling production quantity of slag and the test device of drilling deformation |
| CN107558990B (en) * | 2017-08-17 | 2020-06-26 | 重庆大学 | Testing device for high-gas soft coal drilling slag yield and drilling deformation |
| WO2019100732A1 (en) * | 2017-11-24 | 2019-05-31 | 山东科技大学 | Device and method for coal seam gas pressure measurement and dynamic self-balancing pressurized hole sealing |
| US10794174B2 (en) * | 2017-11-24 | 2020-10-06 | Shandong University Of Science And Technology | Dynamically self-balancing pressurized borehole-sealing apparatus and method thereof for coal seam gas pressure measurement |
| CN108457643A (en) * | 2018-02-05 | 2018-08-28 | 中国矿业大学 | A kind of water enchroachment (invasion) drilling gas piezometry method based on vacuum condition |
| CN108457643B (en) * | 2018-02-05 | 2020-07-31 | 中国矿业大学 | Water-invasion drilling gas pressure measuring method based on vacuum condition |
| CN109488250A (en) * | 2018-12-17 | 2019-03-19 | 煤科集团沈阳研究院有限公司 | Hole sealing device and method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204899914U (en) | Liquid gas piezometry appearance is annotated to negative pressure | |
| CN108060903B (en) | Coal-bed gas pressure measures dynamic self-balance pressurization hole sealing device and method | |
| CN108119094B (en) | Two-plugging one-injection one-row hole sealing device for deep coal seam gas extraction drilling and use method | |
| CN106703871B (en) | A kind of method of high pressure water injection prevention and treatment gas and coal dust | |
| CN105239965B (en) | Halogen method is arranged in salt hole air reserved storeroom gas injection | |
| CN205638348U (en) | Secondary high pressure slip casting formula is in same direction as integrative hole sealing device of coal seam drilling gas drainage pressure measurement | |
| CN206439041U (en) | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing | |
| CN104729969B (en) | Surrouding rock stress level of disruption test device | |
| CN209470820U (en) | Air-tightness detection device for expansion tank | |
| CN205025415U (en) | Experimental detection system of gas drainage under suction drilling hole sealing effect | |
| CN103195470B (en) | Drilling construction Gas gathering-device | |
| CN111927528A (en) | Self-adaptive dynamic hole sealing system and hole sealing method thereof | |
| CN204571919U (en) | To mensuration coal-bed gas pressure drilling and sealing device under colliery | |
| CN205805503U (en) | Coal mine gas extraction drill hole band pressure grouting rapid hole packer | |
| CN205314986U (en) | Experimental device for measure coal seam drilling gas flow | |
| CN201214997Y (en) | Metal seal double tube christmas tree wellhead device | |
| CN204186376U (en) | A kind of " sleeve pipe-air bag-mucus sealing of hole " new device measuring gas pressure | |
| CN204571973U (en) | Novel descending hole capsule-pressure mucus sealing of hole draining pressure tester | |
| CN105134285A (en) | Three-blocking and two-injecting gas extraction hole sealing method | |
| CN210217716U (en) | Coal bed gas pressure measuring device | |
| CN105317397A (en) | Double cloth bags type grouting sealing set and method | |
| CN205743828U (en) | The portable quick pressure measurement sealing of hole instrument in a kind of colliery | |
| CN207278295U (en) | Coal mine gas extraction drill hole sealing of hole effect simulation experimental provision | |
| CN201772975U (en) | Experiment device for detecting sealing properties of expanded capsule and sealing liquid | |
| CN206693984U (en) | The long-armed pumping water into coal hole plugging equipment of extra-high voltage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |