CN204758592U - Go up solid gas coupling simulation modeling experiment device of protective layer exploitation - Google Patents
Go up solid gas coupling simulation modeling experiment device of protective layer exploitation Download PDFInfo
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- CN204758592U CN204758592U CN201520484066.2U CN201520484066U CN204758592U CN 204758592 U CN204758592 U CN 204758592U CN 201520484066 U CN201520484066 U CN 201520484066U CN 204758592 U CN204758592 U CN 204758592U
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- protective layer
- gas
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Abstract
The utility model discloses a go up solid gas coupling simulation modeling experiment device of protective layer exploitation, including experiment box and permeability test system, the experiment box is sealed to be set up, offer corresponding inlet port and test hole on organic glass board and the steel sheet of experiment on the box, the force transducer that answers of experiment box connects gradually data acquisition instrument and computer, the permeability test system is by air compressor, the gas holder, the high pressure rubber tube, the branching unit, the stop valve, manometer and electronic flowmeter constitute, inflate the headtotail the experiment box inflate the hole on, the permeability test system is connected on the test hole of experiment box. The utility model discloses determinable the underlie change rule and the distribution characteristics of of coal petrography body stress, deformation and permeability when the exploitation, operation process is simple and convenient, and the effect is clear directly perceived, and test duration is short, facilitates for the exploitation of research protective layer.
Description
Technical field
The utility model relates to technical field of coal exploitation, specifically a kind of up-protective layer exploitation solid-gas coupling analog simulation experimental device.
Background technology
Coal is the main energy sources of China, accounts for about 70% of primary energy for a long time.According to the prediction of International Energy Agency (IEA), to the year two thousand thirty, 60% of Mei Rengzhan China total energy consumption.Along with mine coal seam exploitation is to the deepening in deep, the outburst hazard of mine coal seam strengthens further, some superficial parts be change into gradually after the coal seam of non-protruding enters deep projecting coal bed, China has become the country that coal and gas prominent disaster is the most serious in the world, and the frequency of Gas Outburst disaster and intensity of outburst are the first in the world.And the perviousness in the most coal seam, mining area of China is low at present, gas pressure large and terrestrial stress high, seriously constrain coal mine gas drainage and utilization.Depressurized mining is the major measure reducing coal seam terrestrial stress, increase coal seam permeability and raising gas pumping effect; show through long-term theoretical research and engineering practice, protective seam Depressurized mining improves gas permeability of coal seam and reduces the most effective technical measures of Gas Disaster accident.Due to the needs of engineering practice; protective seam Depressurized mining technology is applied in coal seam group mining area; but relevant release theoretical basis research still lags behind engineer applied; especially after Depressurized mining, the through mechanism of coal body permeability evolution characteristic sum crack propagation is still unclear, has had a strong impact on the effect of protective seam Depressurized mining technology.Therefore, the deep research of system is carried out to the coal-bed gas penetration theory of protective seam Depressurized mining, can be efficient gas pumping method and extraction technique provides theory and technology to support, realize coal and non-coal highly effective and safe and adopt altogether.
Utility model content
The purpose of this utility model is to provide a kind of up-protective layer to exploit solid-gas coupling analog simulation experimental device, from theory with experimentally to solve the problem proposed above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of up-protective layer exploitation solid-gas coupling analog simulation experimental device, comprise experimental box body and permeability test macro, described experimental box body is the experimental box body of sealing, described experimental box body comprises framework and base, the front end of described framework is provided with poly (methyl methacrylate) plate, the rear end of framework is by the steel plate in tape test hole, engagement plate and general steel plate are sealed to form, the top of framework is provided with steel plate, framework is fixed on base, experimental box body is by the poly (methyl methacrylate) plate of front end, the steel plate of rear end, the steel plate on top and base form seal case, the lower end of base is provided with roller, the bottom of described poly (methyl methacrylate) plate offers 15 air admission holes, the steel plate in back-end framework tape test hole offers 15 instrument connections corresponding with air admission hole, strain gauge is covered with bottom experimental box body, strain gauge is connected with data collecting instrument and computing machine in turn by data conductor, described permeability test macro is made up of air compressor, gas-holder, high-pressure rubber hose, shunt, tensimeter and electronic flow-meter, tensimeter and electronic flow-meter are arranged between shunt and the instrument connection of experimental box body, high-pressure rubber hose between shunt and experimental box body is also provided with stop valve, the high-pressure rubber hose between air compressor and gas-holder is provided with air pump valve.
As preferably, the air pressure maximum load capacity of described experimental box body is 2MPa.
As preferably, described framework is of a size of 1600mm × 1250mm × 200mm.
Compared with prior art; the beneficial effects of the utility model are: the utility model can measure the coal and rock that underlies and adopt stress under emotionally condition, the Changing Pattern of distortion and permeability and distribution characteristics; experimental implementation process is easy; effect is clear directly perceived; test period is short, for research protective coat extracted provides convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram on the organic glass on the utility model middle frame.
In figure: 1-air compressor; 2-gas-holder; 3-shunt; 4-framework; 5-data collecting instrument; 6-computing machine; 7-poly (methyl methacrylate) plate; 8-strain gauge; 9-data conductor; 10-high-pressure rubber hose; 11-air pump valve; 12-tensimeter; 13-electronic flow-meter; 14-base; 15-roller; 16-stop valve.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of up-protective layer exploitation solid-gas coupling analog simulation experimental device, comprise experimental box body and permeability test macro, described experimental box body is the experimental box body of sealing, described experimental box body comprises framework 4 and base 14, the front end of described framework 4 is provided with poly (methyl methacrylate) plate 7, the rear end of framework 4 is by the steel plate in tape test hole, engagement plate and general steel plate are sealed to form, the top of framework 4 is provided with steel plate, framework 4 is fixed on base 14, experimental box body is by the poly (methyl methacrylate) plate 7 of front end, the steel plate of rear end, steel plate and the base 14 on top form seal case, the lower end of base 14 is provided with roller 15, the bottom of described poly (methyl methacrylate) plate 7 offers 15 air admission holes, the steel plate in tape test hole, framework 4 rear end offers 15 instrument connections corresponding with air admission hole, strain gauge 8 is covered with bottom experimental box body, strain gauge 8 is connected with data collecting instrument 5 and computing machine 6 in turn by data conductor 9, described permeability test macro is made up of air compressor 1, gas-holder 2, high-pressure rubber hose 10, shunt 3, tensimeter 12 and electronic flow-meter 13, tensimeter and electronic flow-meter are arranged between shunt and the instrument connection of experimental box body, high-pressure rubber hose 10 between shunt 3 and experimental box body is also provided with stop valve 16, the high-pressure rubber hose 10 between air compressor 1 and gas-holder 2 is provided with air pump valve 11.
As preferably, the air pressure maximum load capacity of described experimental box body is 2MPa.
As preferably, described framework 4 is of a size of 1600mm × 1250mm × 200mm.
Obviously, embodiment described above is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Claims (3)
1. a up-protective layer exploitation solid-gas coupling analog simulation experimental device, comprises experimental box body and permeability test macro, it is characterized in that, described experimental box body is the experimental box body of sealing; Described experimental box body comprises framework and base, described framework is fixed on base, poly (methyl methacrylate) plate is installed in the front end of described framework, the rear end of framework is sealed to form by the steel plate in tape test hole, engagement plate and general steel plate, the top of framework is provided with steel plate, and the lower end of described base is provided with roller, and the bottom of described poly (methyl methacrylate) plate offers 15 air admission holes, the steel plate in back-end framework tape test hole offers 15 instrument connections corresponding with air admission hole, bottom experimental box body, be covered with strain gauge; Strain gauge is by data conductor connection data Acquisition Instrument and computing machine successively; Described permeability test macro is made up of air compressor, gas-holder, high-pressure rubber hose, shunt, tensimeter and electronic flow-meter, tensimeter and electronic flow-meter are arranged between shunt and the instrument connection of experimental box body, high-pressure rubber hose between shunt and experimental box body is also provided with stop valve, the high-pressure rubber hose between air compressor and gas-holder is provided with air pump valve.
2. up-protective layer exploitation solid-gas coupling analog simulation experimental device according to claim 1, it is characterized in that, the air pressure maximum load capacity of described experimental box body is 2MPa.
3. up-protective layer exploitation solid-gas coupling analog simulation experimental device according to claim 1, it is characterized in that, described framework is of a size of 1600mm × 1250mm × 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484066.2U CN204758592U (en) | 2015-07-07 | 2015-07-07 | Go up solid gas coupling simulation modeling experiment device of protective layer exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484066.2U CN204758592U (en) | 2015-07-07 | 2015-07-07 | Go up solid gas coupling simulation modeling experiment device of protective layer exploitation |
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| Publication Number | Publication Date |
|---|---|
| CN204758592U true CN204758592U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520484066.2U Expired - Fee Related CN204758592U (en) | 2015-07-07 | 2015-07-07 | Go up solid gas coupling simulation modeling experiment device of protective layer exploitation |
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| CN (1) | CN204758592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931675A (en) * | 2015-07-07 | 2015-09-23 | 西安科技大学 | Analog simulation experiment device and method for solid gas coupling of upper protective layer mining |
-
2015
- 2015-07-07 CN CN201520484066.2U patent/CN204758592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931675A (en) * | 2015-07-07 | 2015-09-23 | 西安科技大学 | Analog simulation experiment device and method for solid gas coupling of upper protective layer mining |
| CN104931675B (en) * | 2015-07-07 | 2017-05-31 | 西安科技大学 | A kind of up-protective layer exploits solid-gas coupling analog simulation experimental device and experimental technique |
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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: 20151111 Termination date: 20160707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |