CN206769948U - A kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system - Google Patents
A kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system Download PDFInfo
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- CN206769948U CN206769948U CN201720515123.8U CN201720515123U CN206769948U CN 206769948 U CN206769948 U CN 206769948U CN 201720515123 U CN201720515123 U CN 201720515123U CN 206769948 U CN206769948 U CN 206769948U
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- steel cylinder
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- 238000000605 extraction Methods 0.000 title claims abstract description 43
- 239000003245 coal Substances 0.000 title claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 163
- 239000007789 gas Substances 0.000 claims abstract description 158
- 238000005553 drilling Methods 0.000 claims abstract description 119
- 238000005086 pumping Methods 0.000 claims abstract description 112
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 82
- 238000002635 electroconvulsive therapy Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000003860 storage Methods 0.000 claims abstract description 49
- 238000009826 distribution Methods 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
This new cold alternating of one kind heat that is related to breaks coal permeability-increasing gas enhanced gas extraction system, including mash gas pumping drilling, shock treatment drills, carrier, walking mechanism, liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, hot high pressure blower fan, liquid nitrogen booster pump, temperature sensor, pressure sensor, Gas-Flow gauge, impact tube, relief tube, gas pumping pipe, gas pumping pump and control circuit, mash gas pumping drilling, shock treatment drilling is in the wall of coal seam, liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, hot high pressure blower fan, liquid nitrogen booster pump, gas pumping pump and control circuit are arranged on carrier upper surface by slide rail and are slidably connected with carrier.On the one hand the utility model effectively increases the effect and efficiency of the anti-reflection operation of pressure break, on the other hand can carry out gas pumping operation while anti-reflection operation is carried out.
Description
Technical field
A kind of anti-reflection equipment in coal seam is the utility model is related to, is exactly that a kind of cold alternating of heat breaks the reinforcing of coal permeability-increasing gas
Extraction system.
Background technology
China's coal-mine underground gas extraction method for providing is a lot, and current this coal seam to high methane low-permeable mainly uses
Anti-reflection technology have large-diameter borehole, hydraulic flushing in hole, hydraulic slotted liner technique, hydraulic fracturing, deep hole blasting, chemistry is anti-reflection etc., its reclaimed water
Power fracturing methods are one of anti-reflection means in conventional coal seam, but the measure is present that effect of increasing production is not satisfactory, water resource pollution is unrestrained
The technical problem such as take, while be often straight to mash gas pumping drilling currently when carrying out anti-reflection operation to mash gas pumping drilling
The anti-reflection operation of row is tapped into, although can meet to use needs, on the one hand this drainage holes structural failure of invar is easily caused and causes
Gas pumping hole seals damaged, causes gas gas leakage, on the other hand when carrying out anti-reflection operation, it is impossible to directly device in Gas is entered
Row extraction operation, while gas gas leakage is caused, the operating efficiency of device in Gas extraction operation is also had a strong impact on, therefore work as
Anti-reflection technology in force, causes the leakage of device in Gas in various degree used by preceding, while the wasting of resources is caused,
The danger of gas pumping operation is also increased, while also reduces the operating efficiency of gas pumping operation, therefore is directed to this
Problem, there is an urgent need to develop a kind of anti-reflection system of brand-new gas pumping, to meet the needs of actual use.
Utility model content
In view of the shortcomings of the prior art, this new one side effectively increases the effect and effect of the anti-reflection operation of pressure break
Rate, on the other hand effectively realize while anti-reflection operation is carried out, can synchronously carry out gas pumping operation, and greatly reduce
Gas pumping hole sealing structure breakoff phenomenon occurs for anti-reflection operation, so as to reach improve gas pumping operational security and
The purpose of reliability
To achieve these goals, the utility model is to realize by the following technical solutions：
A kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system, including mash gas pumping drilling, shock treatment are drilled, held
Carrier, walking mechanism, liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, hot high pressure blower fan, liquid nitrogen booster pump, temperature sensor, pressure
Sensor, Gas-Flow gauge, impact tube, relief tube, gas pumping pipe, gas pumping pump and control circuit, mash gas pumping drilling,
Shock treatment drilling is in the wall of coal seam, and mash gas pumping drilling, shock treatment drilling axis and 90 ° of the preceding surface of coal seam wall folder
Angle, is in 0 ° of angle between mash gas pumping drilling, shock treatment drilling axis, and the aperture that mash gas pumping drilling and shock treatment drill is
60mm -100mm, depth are 50m -80m, between mash gas pumping drilling and mash gas pumping drilling and mash gas pumping drilling and impact
Spacing between processing drilling be 2-5m, wherein in mash gas pumping drilling, shock treatment drilling, three mash gas pumping drillings with
One shock treatment drilling forms an extraction operation group, and extraction operation group at least two, and on the wall of uniform coal seam, extraction is made
Structure distribution triangular in shape between three mash gas pumping drillings in industry group, shock treatment drilling are located at three mash gas pumping drilling structures
Into triangular structure in, and shock treatment drilling axis is identical to three mash gas pumping drilling axle wire spacings, impact tube, lets out
Pressure pipe, gas pumping pipe some, wherein gas pumping pipe are embedded in mash gas pumping drilling, and coaxial with mash gas pumping drilling
It is distributed, in impact tube, relief tube, an impact tube and a relief tube form an impact group, and impact group is embedded in shock treatment
In drilling, and an impact group is all provided with each shock treatment drilling, impact group is taken out with the coaxial distribution of shock treatment drilling, gas
Pipe and impact group is adopted to be connected with mash gas pumping drilling, shock treatment drilling front end port by pressure adaptive pouch respectively, and
Drilling is sealed by pressure adaptive pouch, temperature sensor, pressure sensor are distributed on the punching press of each impact group respectively
Manage, on the outer surface of relief tube, Gas-Flow gauge is arranged on each gas pumping tube outer surface, and impact tube is distinguished by airway tube
It is interconnected with liquid nitrogen booster pump and hot high pressure blower fan, wherein liquid nitrogen booster pump is interconnected with liquid nitrogen storage steel cylinder, hot high pressure
Blower fan is interconnected with nitrogen storage steel cylinder, and in shock treatment drilling, the other end is located at shock treatment brill for relief tube one end
Outside hole, and relief valve being set on the relief tube outside shock treatment drilling, gas pumping pipe is interconnected with gas pumping pump,
Liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, hot high pressure blower fan, liquid nitrogen booster pump, gas pumping pump and control circuit pass through cunning
Rail is arranged on carrier upper surface and is slidably connected with carrier, and carrier lower surface is connected with each other with walking mechanism, hot high pressure
Blower fan, liquid nitrogen booster pump and airway tube, liquid nitrogen storage steel cylinder, control valve, control electricity are all provided with nitrogen storage steel cylinder link position
Road respectively with walking mechanism, hot high pressure blower fan, liquid nitrogen booster pump, temperature sensor, pressure sensor, Gas-Flow gauge and gas
Extraction pump is electrically connected.
Further, described liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder are at least one, and when liquid nitrogen storage steel cylinder,
It is parallel with one another between each liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder when nitrogen storage steel cylinder is two or more.
Further, the impact tube in described impact group, between relief tube pass through at least two spacer ferrules connect.
Further, described carrier include base, working panel, lift drive mechanism, turntable mechanism, guide pad and
Guided way, described base are the frame structure that cross section is rectangle, and described working panel is installed by lift drive mechanism
Coaxially it is distributed directly over base and with base, described lift drive mechanism is mutually perpendicular to point with base and working panel respectively
Cloth, described lift drive mechanism end are connected with each other by turntable mechanism and base, and described guided way is arranged on base
Surface simultaneously surround turntable mechanism axis structure distribution annular in shape, described guide pad at least two, around working panel axis point
Cloth is in working panel lower surface, and described guide pad end is slidably connected with guided way.
Further, described guide pad includes expansion link, directive wheel, bearing spring, wherein described flexible rod axis
It is hinged with working panel lower surface, and is in 0 ° -90 ° angles, described directive wheel is connected by wheel carrier with expansion link front end, and
In the guided way, described bearing spring is coated on outside expansion link directive wheel, and described bearing spring both ends respectively with work
Make panel lower surface and wheel carrier offsets.
Further, the coal seam wall gross area that described extraction operation group is covered is more than the 90% of coal seam wall area.
This new structure simple and flexible, operating cost is cheap, on the one hand effectively increase the anti-reflection operation of pressure break effect and
Efficiency, have so as to greatly improve drilling gas extraction flow, extraction efficiency, add drilling coal-bed gas gas extraction operation
Coverage is imitated, while the extraction cycle is extended, effectively reaches the purpose for reducing gas pumping cost, on the other hand effectively
Realization while anti-reflection operation is carried out, can synchronously carry out gas pumping operation, and greatly reduce anti-reflection operation to watt
This drainage holes sealing structure breakoff phenomenon occurs, and reaches while gas pumping operating efficiency is improved, and separately effectively reduces watt
This gas leakage and cause wasting of resources phenomenon, environmental pollution and inflammable and explosive risk, improve gas pumping operation so as to reach
The purpose of safety and reliability.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is mash gas pumping drilling, shock treatment drilling in coal seam wall surface distributed architecture intention；
Fig. 2 is mash gas pumping drilling, shock treatment drilling in coal seam pars intramuralis side view distributed architecture diagram intention；
Fig. 3 is this novel system structural representation.
Embodiment
Technological means, creation characteristic, reached purpose and effect to realize the utility model are easy to understand, below
With reference to embodiment, the utility model is expanded on further.
The cold alternating of one kind heat as described in Fig. 1,2 and 3 breaks coal permeability-increasing gas enhanced gas extraction system, including mash gas pumping drilling
1st, shock treatment drilling 2, carrier 3, walking mechanism 4, liquid nitrogen storage steel cylinder 5, nitrogen storage steel cylinder 6, hot high pressure blower fan 7, liquid
Nitrogen booster pump 8, temperature sensor 9, pressure sensor 10, Gas-Flow gauge 11, impact tube 12, relief tube 13, gas pumping pipe
14th, gas pumping pump 15 and control circuit 16, mash gas pumping drilling 1, shock treatment drilling 2 are embedded in coal seam wall 17, and watt
Drill 2 axis and 17 preceding surface of coal seam wall of this extraction borehole 1, shock treatment is in 90 ° of angles, mash gas pumping drilling 1, shock treatment
It is in 0 ° of angle to drill between 2 axis, and the aperture of mash gas pumping drilling 1 and shock treatment drilling 2 is 60mm -100mm, and depth is
50m -80m, between mash gas pumping drilling 1 and mash gas pumping drilling 2 and between mash gas pumping drilling 1 and shock treatment drilling 2
Spacing is 2-5m, wherein in mash gas pumping drilling 1, shock treatment drilling 2, three mash gas pumping drillings 1 and a shock treatment
Drilling 2 forms an extraction operation group, and extraction operation group at least two, and on uniform coal seam wall 17, in extraction operation group
Structure distribution triangular in shape between three mash gas pumping drillings 1, what shock treatment drilling 2 was formed positioned at three mash gas pumping drillings 1
In triangular structure, and shock treatment 2 axis of drilling are identical to three axle wire spacings of mash gas pumping drilling 1.
In the present embodiment, described impact tube 12, relief tube 13, gas pumping pipe 14 some, wherein gas pumping
Pipe 14 is coaxially distributed in mash gas pumping drilling 1 with mash gas pumping drilling 1, in impact tube 12, relief tube 13, Yi Tiaochong
Pressure pipe 12 and a relief tube 13 form an impact group, and impact group is in shock treatment drilling 2, and each shock treatment is bored
An impact group, impact group and shock treatment 2 coaxial distributions of drilling are all provided with hole 2, gas pumping pipe 14 and impact group are led to respectively
Over-pressed force adaptive pouch 18 is connected with mash gas pumping drilling 1, shock treatment 2 front-end ports of drilling, and by pressure adaptive capsule
18 pairs of drillings of bag seal.
In the present embodiment, described temperature sensor 9, pressure sensor 10 are distributed on the impact tube of each impact group respectively
12nd, on the outer surface of relief tube 13, Gas-Flow gauge 11 is arranged on each outer surface of gas pumping pipe 14, and impact tube 12 is by leading
Tracheae 19 is interconnected with liquid nitrogen booster pump 8 and hot high pressure blower fan 7 respectively, wherein liquid nitrogen booster pump 8 and the phase of liquid nitrogen storage steel cylinder 5
Intercommunicated, hot high pressure blower fan 7 is interconnected with nitrogen storage steel cylinder 6, and the one end of relief tube 13 is in shock treatment drilling 2, separately
One end is located at outside shock treatment drilling 2, and sets relief valve 20 on the relief tube 13 outside shock treatment drilling 2, and gas is taken out
Adopt pipe 14 to be interconnected with gas pumping pump 15, liquid nitrogen storage steel cylinder 5, nitrogen storage steel cylinder 6, hot high pressure blower fan 7, liquid nitrogen supercharging
Pump 8, gas pumping pump 15 and control circuit 16 are arranged on the upper surface of carrier 3 and slided with carrier 3 by slide rail 21 to be connected
Connect, the lower surface of carrier 3 is connected with each other with walking mechanism 4, and hot high pressure blower fan 7, liquid nitrogen booster pump 8 and airway tube 19, liquid nitrogen store up
Deposit steel cylinder 5, control valve 22 be all provided with the link position of nitrogen storage steel cylinder 6, control circuit 16 respectively with walking mechanism 4, hot high pressure
Blower fan 7, liquid nitrogen booster pump 8, temperature sensor 9, pressure sensor 10, Gas-Flow gauge 11 and gas pumping pump 15 electrically connect
Connect.
In the present embodiment, described liquid nitrogen storage steel cylinder 5, nitrogen storage steel cylinder 6 are at least one, and work as liquid nitrogen storage steel
It is parallel with one another between each liquid nitrogen storage steel cylinder 5, nitrogen storage steel cylinder 6 when bottle 5, nitrogen storage steel cylinder 6 are two or more.
In the present embodiment, connected between the impact tube 12, relief tube 13 in described impact group by least two spacer ferrules 23
Connect.
In the present embodiment, described carrier 3 includes base 31, working panel 32, lift drive mechanism 33, turntable mechanism
34th, guide pad 35 and guided way 36, described base 31 are the frame structure that cross section is rectangle, and described working panel 32 is logical
Cross lift drive mechanism 33 to be coaxially distributed directly over base 31 and with base 31, described lift drive mechanism 33 is distinguished
It is mutually perpendicular to be distributed with base 31 and working panel 32, the described end of lift drive mechanism 33 passes through turntable mechanism 34 and base
31 are connected with each other, and described guided way 35 is arranged on base upper surface and surround the axis of turntable mechanism 34 structure distribution annular in shape,
Described guide pad 35 at least two, the lower surface of working panel 32, and described guiding are distributed in around the axis of working panel 32
The end of block 35 is slidably connected with guided way 36.
In the present embodiment, described guide pad 35 includes expansion link 351, directive wheel 352, bearing spring 353, wherein described
The axis of expansion link 351 be hinged with the lower surface of working panel 32, and be in 0 ° -90 ° angles, described directive wheel 352 passes through wheel carrier
354 are connected with the front end of expansion link 351, and directive wheel 352, in guided way 36, described bearing spring 353 is coated on flexible
Outside bar 351, and the described both ends of bearing spring 353 offset with the lower surface of working panel 32 and wheel carrier 354 respectively.
In the present embodiment, the mash gas pumping drilling, shock treatment drilling are when coal seam wall bilateral opens up simultaneously, then each watt
This extraction borehole, shock treatment drilling are spaced apart, and adjacent mash gas pumping drilling, shock treatment boring end opening position are provided with
Pressure stubble length no less than 10m
In the present embodiment, the coal seam wall gross area that described extraction operation group is covered is more than the 90% of coal seam wall area.
This is new in the specific implementation, first according to the needs of gas pumping operation, in the coal seam wall side surface of the scope of operation
On open up some mash gas pumping drillings, shock treatment drilling, and some form extraction operation group and then by gas pumping pipe
Together it is installed in drilling by borehole sealing equipment with impact group, then connects gas pumping pipe with gas pumping pump, will
Impact tube in impact group is interconnected by airway tube and hot high pressure blower fan, liquid nitrogen booster pump, finally by hot high pressure blower fan, liquid
Nitrogen booster pump is interconnected with liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder respectively, and control circuit and each electrical equipment are carried out
Electrical connection, complete equipment assembling.
When carrying out gas pumping, first by hot high pressure blower fan by the nitrogen temperature in nitrogen storage steel cylinder to 200 DEG C-
300 DEG C, 2-5MPa is pressurized to, is then imported into by impact tube in shock treatment drilling, injects nitrogen being drilled to shock treatment
Gas carries out gas pumping to three mash gas pumping drillings of shock treatment borehole circumference simultaneously, by gas pumping pump, and when watt
Temperature reaches 100 DEG C in this extraction borehole and gas flow drops to 0.003-0.009m3In/min during any one, close
Hot high pressure blower fan, stop drilling conveying high temperature nitrogen operation to shock treatment, and simultaneously by liquid nitrogen booster pump by liquid nitrogen storage
Liquid nitrogen in steel cylinder be pressurized to 2-5MPa and be transported to shock treatment drilling in, to shock treatment drilling cool, to
Injection liquid nitrogen is drilled to shock treatment simultaneously, crosses gas pumping pump and three mash gas pumping drillings of shock treatment borehole circumference are entered
Row gas pumping, and work as gas flow in mash gas pumping drilling and drop to 0.003-0.009m3During/min, liquid nitrogen supercharging is closed
Pump, so as to complete an anti-reflection circulation of impact, and after an anti-reflection circulation of impact is completed, again return in the anti-reflection circulation of impact
Startup pressure air-heater running status, so as to realize carry out gas pumping simultaneously, to shock treatment drill carry out cold cycling
Impact anti-reflection operation.
When high temperature nitrogen and liquid nitrogen operation are wherein passed through in being drilled to shock treatment, pressure is more than in shock treatment drilling
On relief tube after relief valve setting pressure, pressure release is carried out to high temperature nitrogen in shock treatment drilling by relief tube.
Present device structure and implementation simple and flexible, operating cost is cheap, on the one hand effectively increases pressure break increasing
The effect and efficiency of saturating operation, so as to greatly improve drilling gas extraction flow, extraction efficiency, add drilling coal seam watt
This gas extraction operation effective coverage range, while the extraction cycle is extended, effectively reach the mesh for reducing gas pumping cost
, on the other hand effectively realize while anti-reflection operation is carried out, can synchronously carry out gas pumping operation, and greatly reduce
Gas pumping hole sealing structure breakoff phenomenon occurs for anti-reflection operation, reaches while gas pumping operating efficiency is improved,
Separately effectively reduce gas gas leakage and cause wasting of resources phenomenon, environmental pollution and inflammable and explosive risk, improved so as to reach
The purpose of gas pumping operational security and reliability.
It should be understood by those skilled in the art that the utility model is not restricted to the described embodiments.Above-described embodiment and
Simply illustrate principle of the present utility model described in specification.On the premise of the spirit and scope of the utility model is not departed from,
The utility model also has various changes and modifications.These changes and improvements both fall within claimed the scope of the utility model
It is interior.The utility model requires protection scope is by appended claims and its equivalent thereof.
Claims (6)
1. a kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：Described hot cold shock three-level breaks coal
Device bag mash gas pumping drilling, shock treatment drilling, carrier, walking mechanism, liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, height
Press air-heater, liquid nitrogen booster pump, temperature sensor, pressure sensor, Gas-Flow gauge, impact tube, relief tube, gas pumping
Pipe, gas pumping pump and control circuit, in the wall of coal seam, gas is taken out for described mash gas pumping drilling, shock treatment drilling
Borehole, shock treatment drilling is vertical with rib be in 90 ° of angles, described mash gas pumping drilling, shock treatment drilling axis
Between be in 0 ° of angle, the aperture of described mash gas pumping drilling and shock treatment drilling be 60mm -100mm, depth for 50m -
80m, spacing between mash gas pumping drilling and mash gas pumping drilling and between mash gas pumping drilling and shock treatment drilling for 2-
5m, wherein in the drilling of described mash gas pumping drilling, shock treatment, three mash gas pumping drillings and a shock treatment drilling structure
Into an extraction operation group, and described extraction operation group is distributed on the wall of coal seam, three watts in described extraction operation group
Structure distribution triangular in shape between this extraction borehole, the triangle that the drilling of described shock treatment is formed positioned at three mash gas pumping drillings
In shape structure, and described shock treatment drilling axis is to identical, the described punching press of three mash gas pumping drilling axle wire spacings
Pipe, relief tube, gas pumping pipe some, wherein described gas pumping pipe is embedded in mash gas pumping drilling, and and gas
Extraction borehole is coaxially distributed, and in described impact tube, relief tube, an impact tube and a relief tube form an impact group,
Described impact group is all provided with an impact group, described impact in shock treatment drilling in each shock treatment drilling
Group and the coaxial distribution of shock treatment drilling, described gas pumping pipe and impact group pass through pressure adaptive pouch and gas respectively
Extraction borehole, the connection of shock treatment drilling front end port, and drilling is sealed by pressure adaptive pouch, described temperature
Sensor, pressure sensor are distributed on the outer surface of the impact tube of each impact group, relief tube respectively, described Gas-Flow gauge
On each gas pumping tube outer surface, described impact tube by airway tube respectively with liquid nitrogen booster pump and hot high pressure blower fan
It is interconnected, wherein described liquid nitrogen booster pump is interconnected with liquid nitrogen storage steel cylinder, described hot high pressure blower fan and nitrogen storage
Deposit steel cylinder to be interconnected, described relief tube one end is in shock treatment drilling, and the other end is located at outside shock treatment drilling, and position
Relief valve is set on relief tube outside shock treatment drills, the gas pumping pipe is interconnected with gas pumping pump, described
Liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder, hot high pressure blower fan, liquid nitrogen booster pump, gas pumping pump and control circuit pass through
Slide rail is arranged on carrier upper surface and is slidably connected with carrier, and described carrier lower surface mutually interconnects with walking mechanism
Connect, it is described hot high pressure blower fan, liquid nitrogen booster pump and airway tube, liquid nitrogen storage steel cylinder, equal at nitrogen storage steel cylinder link position
If control valve, described control circuit passes with walking mechanism, hot high pressure blower fan, liquid nitrogen booster pump, temperature sensor, pressure respectively
Sensor, Gas-Flow gauge and the electrical connection of gas pumping pump.
2. a kind of cold alternating of heat according to claim 1 breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：It is described
Liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder it is at least one, and when liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder are two or two
It is parallel with one another between each liquid nitrogen storage steel cylinder, nitrogen storage steel cylinder during the individual above.
3. a kind of cold alternating of heat according to claim 1 breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：It is described
Impact group in impact tube, pass through at least two spacer ferrules between relief tube and connect.
4. a kind of cold alternating of heat according to claim 1 breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：It is described
Carrier include base, working panel, lift drive mechanism, turntable mechanism, guide pad and guided way, described base is horizontal stroke
The frame structure of rectangular cross-section, described working panel are arranged on directly over base and same with base by lift drive mechanism
Axle is distributed, and described lift drive mechanism is mutually perpendicular to be distributed with base and working panel respectively, described lift drive mechanism
End is connected with each other by turntable mechanism and base, and described guided way is arranged on base upper surface and around turntable mechanism axis
Structure distribution annular in shape, described guide pad at least two, working panel lower surface, and institute are distributed in around working panel axis
Guide pad end and the guided way stated are slidably connected.
5. a kind of cold alternating of heat according to claim 4 breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：It is described
Guide pad include expansion link, directive wheel, bearing spring, wherein described flexible rod axis are hinged with working panel lower surface,
And be in 0 ° -90 ° angles, described directive wheel is connected by wheel carrier with expansion link front end, and directive wheel is embedded in guided way, institute
The bearing spring stated is coated on outside expansion link, and described bearing spring both ends respectively with working panel lower surface and wheel carrier phase
Support.
6. a kind of cold alternating of heat according to claim 1 breaks coal permeability-increasing gas enhanced gas extraction system, it is characterised in that：It is described
The coal seam wall gross area that is covered of extraction operation group be more than the 90% of coal seam wall area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515123.8U CN206769948U (en) | 2017-05-10 | 2017-05-10 | A kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720515123.8U CN206769948U (en) | 2017-05-10 | 2017-05-10 | A kind of cold alternating of heat breaks coal permeability-increasing gas enhanced gas extraction system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854221A (en) * | 2019-03-08 | 2019-06-07 | 中国矿业大学 | A kind of underground note is cold, heating works alternatively the anti-reflection coal seam system of circulation fracturing and pumping method |
| CN110513140A (en) * | 2019-07-26 | 2019-11-29 | 中国矿业大学 | A kind of control system and method promoting the efficient mash gas extraction of coal seam network security |
| CN111502740A (en) * | 2020-03-30 | 2020-08-07 | 北京科技大学 | Unit circulating type pressure pumping integrated gas extraction system and method |
-
2017
- 2017-05-10 CN CN201720515123.8U patent/CN206769948U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854221A (en) * | 2019-03-08 | 2019-06-07 | 中国矿业大学 | A kind of underground note is cold, heating works alternatively the anti-reflection coal seam system of circulation fracturing and pumping method |
| CN110513140A (en) * | 2019-07-26 | 2019-11-29 | 中国矿业大学 | A kind of control system and method promoting the efficient mash gas extraction of coal seam network security |
| CN111502740A (en) * | 2020-03-30 | 2020-08-07 | 北京科技大学 | Unit circulating type pressure pumping integrated gas extraction system and method |
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