CN108195741A - It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method - Google Patents
It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method Download PDFInfo
- Publication number
- CN108195741A CN108195741A CN201810053026.0A CN201810053026A CN108195741A CN 108195741 A CN108195741 A CN 108195741A CN 201810053026 A CN201810053026 A CN 201810053026A CN 108195741 A CN108195741 A CN 108195741A
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- body frame
- sealing cover
- lift part
- 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.)
- Pending
Links
- 238000010998 test method Methods 0.000 title abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 239000003245 coal Substances 0.000 claims abstract description 46
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000013480 data collection Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003519 ventilatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
The invention discloses a kind of gas experimental rig and test method for adding constant pressure based on intracavitary, which includes sealed body frame, intracavitary adds constant-voltage equipment, gas is for giving control system, gas flow dynamic monitoring system and data acquisition computer；The main body frame is mainly made of circular cylindrical cavity, air inlet, gas outlet, sealing cover, O-shaped sealing rubber ring, and sealing cover is connected through a screw thread with seal cavity；The gas is located at sealed body frame left for giving control system；The gas flow dynamic monitoring system and data acquisition computer are located at sealed body frame right；The rigid top lift part is wanted to connect with sealing cover by screw thread, by injecting the amount of hydraulic oil come the size of control pressure；The sealed body frame, gas are for giving control system, gas flow dynamic monitoring system is attached by gas pipeline；The present invention can be according to the situation of practical overlying rock, adjust the pressure size above the coal body during analog simulation and provide experimental study equipment that is good and emulating.
Description
Technical field
The present invention relates to the gas experimental rigs and test method for adding constant pressure in annular seal space
Background technology
Gas permeability of coal seam has a significant impact the occurrence status of gas, flow behavior in coal body, and coal body and its preservation are enclosed
Porosity in rock has a major impact effect to the gas permeability in coal seam.The porosity of coal body not only influence coal to the absorption of gas,
Desorption, can also influence the channel that gas is flowed in coal micropore.In the actual production process, one of coal body porosity is influenced very
Big factor is the pressure that overlying rock gives coal body, and during the analog simulation of laboratory, overlying strata are had ignored mostly
Layer gives influence of the pressure of coal body to coal body porosity, and the result of simulation is caused not match with practical.Therefore, in laboratory
, can be according to the situation of practical overlying rock during analog simulation, the pressure on coal body during adjustment analog simulation
Size, develops reliable simulation test device, and the test method of reasonable design for improving gas pumping rate, ensures coal mine peace
Full production has great importance.
Invention content
It is an object of the invention to which existing laboratory gas experimental rig is overcome to ignore in actual production process, overlying rock
Weight is influenced caused by the porosity of coal body, provides gas experimental rig and the experiment side for adding constant pressure in a kind of annular seal space
Method realizes the consistency of sample porosity and live coal body porosity during analog simulation experiment.
To achieve these goals, the present invention adopts the following technical scheme that：
It is a kind of based in annular seal space plus constant pressure gas experimental rig, including sealed body frame, intracavitary add constant-voltage equipment,
Gas is for giving control system, gas flow dynamic monitoring system and data acquisition computer；The sealed body frame is one
Cylinder cavity, and one cube of intracoelomic cavity is dug among cylinder, seal cavity is connected through a screw thread with sealing cover；The sealing
There is a circular hole at the sealing cover center of main body frame upper end, and hydraulic oil is passed through oil filler point injection plus constant pressure by small size hydraulic pump station
Device；Rigid top lift part is combined by described plus constant-voltage equipment with sealing cover, by injecting the amount of hydraulic oil come control pressure
Size；The gas is located at sealed body frame left for giving control system, including high pressure gas tank, pressure reducing valve, gas pipe
Road, gas switch, Gas-Flow gauge, gas pressure table；The gas flow dynamic monitoring system is located at the sealed body frame right side
Side, including gas switch, Gas-Flow gauge, gas pressure table, hose.
The sealed body frame include circular cylindrical cavity, air inlet, gas outlet, sealing cover, O-shaped sealing rubber ring, into
Gas port is respectively placed in sealed body frame both sides with gas outlet, and the sealing cover inner ring is inlaid with O-shaped sealing rubber ring.
The intracavitary adds constant-voltage equipment, and there is screw thread at sealing cover center there are one circular hole in hole wall；It is noted in rigid top lift part
Also there is screw thread at oilhole, rigid top lift part is connected through a screw thread with sealing cover, and the rigid top lift part pedestal is inlaid with O-shaped sealing
Rubber ring.After seal cavity sealing, pressure by rigid top lift part is passed to the steel plate of the top of intracavitary coal body, makes coal body
It is under pressure and is maintained at a stable degree.
The gas includes high pressure gas tank, pressure reducing valve, gas pipeline, gas switch, Gas-Flow for giving control system
Gauge, gas pressure table, the high pressure gas tank, gas switch, Gas-Flow gauge, gas pressure table are mutual by gas pipeline
It connects and is attached with the connector on the air inlet of sealed body frame left.
The seal cavity inner wall gas inlet combines metallic sieve with being equipped at gas outlet.
The Methane Diffusion mechanism includes gas switch, Gas-Flow gauge, gas pressure table, hose；The gas switch,
Gas-Flow gauge, gas pressure table, hose are serially connected by gas pipeline, and on sealed body frame right gas outlet
Connector is attached.
Based on the test method for the gas experimental rig for adding constant pressure in annular seal space, include the following steps：
A. device is installed：
Be packed into sealed body frame cube intracoelomic cavity appropriate coal sample and steel plate place with coal sample on, by rigid top
It lifts part to connect with sealing cover by screw thread, and O-shaped sealing rubber ring is placed in the bottom of rigid top lift part.
B. device seals：
It will be sealed equipped with O-shaped sealing rubber ring and be placed on the top of seal cavity, be tightened in sealing cover by screw thread close
It seals on cavity, and air inlet connections is connected with gas for giving control system, gas outlet connector and gas flow dynamic monitoring
System connects, and ventilates and be examined in each sealing joint.
C. ventilation absorption：
By setting gas pressure through high pressure gas tank, based on numerical control flux, combination metallic sieve continues into seal cavity
Coal sample leads to constant pressure gas 24 hours, makes the abundant adsorption gas of coal sample, and closes air inlet switch.
Plus constant pressure d.：
Coal sample is carried out by the way of following by the present invention plus constant pressure：
The oil filler point of rigid top lift part among small size hydraulic pump station and sealing cover is connected, by liquid by way of pressurization
In pressure oil injection rigid top lift part, rigid top lift part gradually contacts with each other with the steel plate of intracavitary, the lower section of steel plate is applied downward
Pressure, by small size hydraulic pump station control coal sample suffered by pressure, it can be achieved that different pressures value pressurize, reaching setting pressure
After value, small size hydraulic pump station is controlled, keeps pressure value constant, coal sample is made to be acted on by a stable external pressure, so as to real
The simulation that coal gas flows under pressure influence is supported when now to digging in-situ.
F, flow monitoring：
During sample is entirely tested, Gas-Flow gauge is connected with computer, passes through data collection and analysis software dynamic
Monitor the size of gas flow in sample.
Beneficial effects of the present invention：
1. being equipped with O-shaped sealing rubber ring between seal cavity of the present invention and sealing cover, sealing cover is connect with rigid top lift part
Place is equipped with O-shaped sealing rubber ring, and sealing means are simple and good airproof performance；Several layers of combination metallic sieve are equipped at gas gas outlet,
Realize the face ventilatory function to sample.
2. the present invention, can real-time dynamic monitoring sample watt using gas flow dynamic monitoring system and data acquisition computer
This changes in flow rate, data acquisition is convenient, high degree of automation.
3. the present invention can by way of external pressurized, according to actual pressure value in actual production process, to coal sample into
The equivalent pressurization of row, while the size of pressure can be adjusted in real time, meet different requirements.
Description of the drawings
Fig. 1 is a kind of front view based on the gas experimental rig for adding constant pressure in annular seal space of the present invention
Fig. 2 is sealing cover of the present invention and seal cavity vertical view
In figure：1- high pressure gas tanks；2- pressure reducing valves；3- gas pipelines；4- gas switch；5- Gas-Flow gauge；6- gas
Pressure gauge；7- seal cavities；8- combines metallic sieve；9-O type sealing rubber rings；10- rigid top lift parts；11- oil filler points；12-O
Type sealing rubber ring；13- steel plates；14- gas switch；15- Gas-Flow gauge；16- gas pressure tables；17- hoses；18- outlets
Mouthful；19- air inlets；20- sealing covers
Specific embodiment
Below in conjunction with the accompanying drawings, specific implementation of the patent mode is further described.
As depicted in figs. 1 and 2, it is a kind of based in annular seal space plus constant pressure gas experimental rig, including sealed body frame,
Intracavitary adds constant-voltage equipment, gas for giving control system, gas flow dynamic monitoring system and data acquisition computer；It is described close
Envelope main body frame is a cylinder seal cavity 7, and one cube of intracoelomic cavity, seal cavity 7 and sealing cover are dug among cylinder
20 are connected through a screw thread；The sealed body frame includes square cavity, air inlet 19, gas outlet 18, sealing cover 20, air inlet
19 are respectively placed in sealed body frame both sides with gas outlet 18；The gas is located at a sealed body frame left side for giving control system
Side, including high pressure gas tank 1, pressure reducing valve 2, gas pipeline 3, gas switch 4, Gas-Flow gauge 5, gas pressure table 6；Described watt
This flow dynamics monitoring system is located at sealed body frame right, including gas switch 14, Gas-Flow gauge 15, gas pressure table
16th, hose 17.
Coal sample is positioned in sealed body frame cube intracoelomic cavity and steel plate 13 is placed in coal sample, sealing cover inner ring edge
Embedded with O-shaped sealing rubber ring 9, seal cavity 7 screws compression seal rubber ring 9 with sealing cover 20 by screw thread, ensures air-tightness.
The intracavitary adds constant-voltage equipment, and there is screw thread at 20 center of sealing cover there are one circular hole in hole wall；In rigid top lift part
Also there is screw thread at 10 oil filler points 11, rigid top lift part 10 is connected through a screw thread with sealing cover 20,10 pedestal of rigid top lift part
It is inlaid with O-shaped sealing rubber ring 12；After seal cavity sealing, pressure is passed to by intracavitary coal body by rigid top lift part 10
The steel plate 13 of top makes coal body be under pressure and is maintained at a stable degree.
The gas for give control system include high pressure gas tank 1, pressure reducing valve 2, gas pipeline 3, gas switch 4, watt
This flowmeter 5, gas pressure table 6；The high pressure gas tank 1, pressure reducing valve 2, gas switch 4,5 gas pressure table of Gas-Flow gauge
6 are attached by 3 dependent Series of gas pipeline and with the connector on the air inlet 19 of sealed body frame left.
Combination metallic screen is housed at cavity wall gas inlet 19 and gas outlet 18 in sealing in the sealed body frame
Net 8.
The Methane Diffusion mechanism includes gas switch 14, Gas-Flow gauge 15, gas pressure table 16, hose 17；It is described
Gas switch 14, Gas-Flow gauge 15, gas pressure table 16, hose 17 are serially connected by gas pipeline 3, and and sealed body
Connector on frame right gas outlet 18 is attached.
Based on the test method for the gas experimental rig for adding constant pressure in annular seal space, include the following steps：
A. device is installed：
Appropriate coal sample is packed into sealed body frame cube intracoelomic cavity and steel plate 13 is placed on coal sample, inciting somebody to action rigidity
Top lift part is connected by screw thread and the sealing cover of seal cavity, and places O-shaped sealing rubber ring 12 in the bottom of rigid top lift part.
B. device seals：
The top for being placed on seal cavity will be sealed, the O-shaped sealing rubber ring 9 of sandwich one will be sealed by screw thread
Lid is tightened in seal cavity, and 20 connector of air inlet is given control system, 19 connector of gas outlet and Gas-Flow with gas confession
Dynamic monitoring system connection is measured, and is examined in each sealing joint.
C. ventilation absorption：
By setting gas pressure through 5 based on gas gasing tank 1, numerical control flux, combination metallic sieve 8 continues to seal cavity
Interior coal body leads to constant pressure gas 24 hours, makes the abundant adsorption gas of coal and rock, and closes air inlet 20 and switch.
Plus constant pressure d.：
Coal sample is carried out by the way of following by the present invention plus constant pressure：
Rigid top oil filler point 11 among fuel delivery device and sealing cover is connected, is injected hydraulic oil by way of pressurization
In rigid top lift part 10, rigid top lift part 10 gradually contacts with each other with the steel plate of intracavitary 13, applies pressure to the lower section of steel plate, leads to
The pressure suffered by external fuel delivery device control coal body is crossed, the pressure under different condition can be reached, after reaching, control is defeated
Oily device, pressure is constant, ensure coal body by a stable pressure.
F, flow monitoring：
During sample is entirely tested, Gas-Flow gauge is connected with computer, passes through data collection and analysis software dynamic
Monitor the size of gas flow in sample.
Claims (7)
1. it is a kind of based in annular seal space plus constant pressure gas experimental rig, wherein, the experimental rig include sealed body frame,
Intracavitary adds constant-voltage equipment, gas for giving control system, gas flow dynamic monitoring system and data acquisition computer；It is described close
Envelope main body frame is a cylinder cavity, and one cube of intracoelomic cavity is dug among cylinder, and seal cavity passes through spiral shell with sealing cover
Line connects；There is a circular hole at the sealing cover center of the sealed body frame upper end, is passed through hydraulic oil by small size hydraulic pump station
Oil filler point injection plus constant-voltage equipment；Rigid top lift part is combined by described plus constant-voltage equipment with sealing cover, by injecting hydraulic oil
Amount carry out the size of control pressure；The gas is located at sealed body frame left for giving control system, including high pressure gas
Tank, pressure reducing valve, gas pipeline, gas switch, Gas-Flow gauge, gas pressure table；The gas flow dynamic monitoring system position
In sealed body frame right, including gas switch, Gas-Flow gauge, gas pressure table, hose.
It is 2. a kind of based on the gas experimental rig for adding constant pressure in annular seal space according to claim 1, it is characterised in that：It is described close
It seals main body frame and includes circular cylindrical cavity, air inlet, gas outlet, sealing cover, O-shaped sealing rubber ring, air inlet and gas outlet point
It is not placed in sealed body frame both sides, the sealing cover inner ring is inlaid with O-shaped sealing rubber ring.
It is 3. a kind of based on the gas experimental rig for adding constant pressure in annular seal space according to claim 1, it is characterised in that：Described
Intracavitary adds constant-voltage equipment, and there is screw thread at sealing cover center there are one circular hole in hole wall；Also there is spiral shell at rigid top lift part oil filler point
Line, rigid top lift part are connected through a screw thread with sealing cover, and the rigid top lift part pedestal is inlaid with O-shaped sealing rubber ring；Close
It seals after cavity sealing, pressure by rigid top lift part is passed to the steel plate of the top of intracavitary coal body, coal body is made to be under pressure simultaneously
It is maintained at a stable degree.
It is 4. a kind of based on the gas experimental rig for adding constant pressure in annular seal space according to claim 1, it is characterised in that：Described watt
This includes high pressure gas tank, pressure reducing valve, gas pipeline, gas switch, Gas-Flow gauge, gas pressure for giving control system
Table, the high pressure gas tank, gas switch, Gas-Flow gauge, gas pressure table be serially connected by gas pipeline and with sealing
The connector on air inlet on the left of main body frame is attached.
It is 5. according to claim 1 a kind of based on the gas experimental rig for adding constant pressure in annular seal space, it is characterised in that：It is described
Seal cavity inner wall gas inlet combines metallic sieve with being equipped at gas outlet.
It is 6. according to claim 1 a kind of based on the gas experimental rig for adding constant pressure in annular seal space, it is characterised in that：It is described
Methane Diffusion mechanism includes gas switch, Gas-Flow gauge, gas pressure table, hose；The gas switch, Gas-Flow gauge,
Gas pressure table, hose are serially connected by gas pipeline, and are connected with the connector on sealed body frame right gas outlet
It connects.
7. based in annular seal space plus constant pressure gas experiment, using described in one of claim 1 to 7 based in annular seal space plus perseverance
The gas experimental rig of pressure, it is characterised in that：Include the following steps
A. device is installed：
Be packed into sealed body frame cube intracoelomic cavity appropriate coal sample and steel plate place with coal sample on, by rigid top lift part
It is connect by screw thread with sealing cover, and O-shaped sealing rubber ring is placed in the bottom of rigid top lift part.
B. device seals：
The top of seal cavity will be placed on equipped with the sealing of O-shaped sealing rubber ring, sealing cover is tightened in by annular seal space by screw thread
On body, and air inlet connections are connected with gas for giving control system, gas outlet connector and gas flow dynamic monitoring system
Connection, and ventilate and be examined in each sealing joint.
C. ventilation absorption：
By setting gas pressure through high pressure gas tank, based on numerical control flux, combination metallic sieve continue the coal sample into seal cavity
Logical constant pressure gas 24 hours, makes the abundant adsorption gas of coal sample, and closes air inlet switch.
Plus constant pressure d.：
Coal sample is carried out by the way of following by the present invention plus constant pressure：
The oil filler point of rigid top lift part among small size hydraulic pump station and sealing cover is connected, by hydraulic oil by way of pressurization
It injects in rigid top lift part, rigid top lift part gradually contacts with each other with the steel plate of intracavitary, applies downward pressure to the lower section of steel plate
Power, by small size hydraulic pump station control coal sample suffered by pressure, it can be achieved that different pressures value pressurize, reach setup pressure value it
Afterwards, small size hydraulic pump station is controlled, keeps pressure value constant, coal sample is made to be acted on by a stable external pressure, so as to fulfill right
The simulation that coal gas flows under pressure influence is supported during digging in-situ.
F, flow monitoring：
During sample is entirely tested, Gas-Flow gauge is connected with computer, passes through data collection and analysis software dynamic monitoring
The size of gas flow in sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053026.0A CN108195741A (en) | 2018-01-19 | 2018-01-19 | It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053026.0A CN108195741A (en) | 2018-01-19 | 2018-01-19 | It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108195741A true CN108195741A (en) | 2018-06-22 |
Family
ID=62590216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053026.0A Pending CN108195741A (en) | 2018-01-19 | 2018-01-19 | It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108195741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN110320146A (en) * | 2019-07-24 | 2019-10-11 | 北京耐尔得智能科技有限公司 | A kind of concrete air permeability apparatus and measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706528A (en) * | 2012-05-25 | 2012-10-03 | 中国矿业大学(北京) | Gas flow characteristic testing device of fragmented coal rock mass |
| CN102944660A (en) * | 2012-10-19 | 2013-02-27 | 中国矿业大学(北京) | Simulation test system for gas adsorption and desorption of large-scale coal |
| CN104297069A (en) * | 2014-10-21 | 2015-01-21 | 安徽理工大学 | Gas-containing coal hydrofracture-induced dynamic damage simulation monitoring device and method |
| CN106645630A (en) * | 2017-02-20 | 2017-05-10 | 中国矿业大学(北京) | Tester for simulating change of gas permeability of coal seam caused by water drainage and permeability-increasing method |
| CN207689332U (en) * | 2018-01-19 | 2018-08-03 | 中国矿业大学(北京) | It is a kind of based in seal chamber plus constant pressure gas experimental rig |
-
2018
- 2018-01-19 CN CN201810053026.0A patent/CN108195741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706528A (en) * | 2012-05-25 | 2012-10-03 | 中国矿业大学(北京) | Gas flow characteristic testing device of fragmented coal rock mass |
| CN102944660A (en) * | 2012-10-19 | 2013-02-27 | 中国矿业大学(北京) | Simulation test system for gas adsorption and desorption of large-scale coal |
| CN104297069A (en) * | 2014-10-21 | 2015-01-21 | 安徽理工大学 | Gas-containing coal hydrofracture-induced dynamic damage simulation monitoring device and method |
| CN106645630A (en) * | 2017-02-20 | 2017-05-10 | 中国矿业大学(北京) | Tester for simulating change of gas permeability of coal seam caused by water drainage and permeability-increasing method |
| CN207689332U (en) * | 2018-01-19 | 2018-08-03 | 中国矿业大学(北京) | It is a kind of based in seal chamber plus constant pressure gas experimental rig |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN110320146A (en) * | 2019-07-24 | 2019-10-11 | 北京耐尔得智能科技有限公司 | A kind of concrete air permeability apparatus and measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112414915B (en) | Test system and method for simulating tunnel excavation seepage change under complex geological conditions | |
| CN105443081B (en) | A kind of gas pumping equipment and pumping method based on thought of rotating | |
| CN202031564U (en) | Coal petrographic drilling hydraulic fracture experimental apparatus | |
| CN103995093B (en) | For the power system of coal and gas prominent dynamic effect simulated experiment | |
| CN107358858B (en) | Coal bed biological gas reservoir process simulation device and experimental method | |
| CN105221122A (en) | The visual experimental apparatus of simulation fractured-cavernous carbonate reservoir gas injection and method | |
| CN103743634B (en) | Fluid structure interaction coal rock shear-seepage test fluid pressure-loaded shear box | |
| CN102031954A (en) | Coal and rock bore hydraulic fracture experimental apparatus | |
| CN105865874B (en) | A kind of sample preparation device suitable for sandy soil laboratory test | |
| CN107288632B (en) | Coal-rock reservoir drainage and production water source and pressure drop path simulation device and method | |
| CN106812523A (en) | A kind of multiple seam coal bed gas well mining physical simulating device and its experimental technique | |
| Cao et al. | A novel large-scale three-dimensional apparatus to study mechanisms of coal and gas outburst | |
| CN108195741A (en) | It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method | |
| CN105842275B (en) | A kind of test method of steam drive coal gas desorption heat transfer | |
| CN103399125B (en) | A kind of firedamp taking-out discharging drilling sealing of hole sealing experimental facility and method | |
| CN107120112B (en) | Multi-coal-bed gas combined mining experimental device | |
| CN104453878A (en) | Multi-element gas displacement coal bed methane testing device based on process real-time tracking control | |
| CN107246255A (en) | Supercritical CO2The analogue means and method of fracturing coal body are combined with hydraulic fracturing | |
| CN107907466A (en) | It is a kind of to change gas humidity and three axis seepage apparatus of port of export positive pressure | |
| CN110284922A (en) | A kind of CO2Geological storage strengthens gas drainage and induces prominent method for testing risk | |
| CN207351871U (en) | A kind of grouting for water plugging simulation test device | |
| CN106645630A (en) | Tester for simulating change of gas permeability of coal seam caused by water drainage and permeability-increasing method | |
| CN104655806B (en) | A kind of nitrogen fracturing coal seam energy variation and permeability method of testing and device | |
| CN205370519U (en) | Gas drainage equipment based on thought of rotating | |
| CN207689332U (en) | It is a kind of based in seal chamber plus constant pressure gas experimental rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |