CN106050295A - Gas gushing simulating system used in physics resemble simulation experiments - Google Patents
Gas gushing simulating system used in physics resemble simulation experiments Download PDFInfo
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- CN106050295A CN106050295A CN201610298450.2A CN201610298450A CN106050295A CN 106050295 A CN106050295 A CN 106050295A CN 201610298450 A CN201610298450 A CN 201610298450A CN 106050295 A CN106050295 A CN 106050295A
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- 238000004088 simulation Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 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 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 16
- 239000003245 coal Substances 0.000 abstract description 10
- 238000011160 research Methods 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 145
- 238000005086 pumping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001617 migratory effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a gas gushing simulating system used in physics resemble simulation experiments. The system comprises a gas injection mechanism and a gas dissipation simulating mechanism. The gas injection mechanism comprises a gas cylinder cabinet, a gas cylinder, a gas reducing valve, a master gas pipeline, a gas injection control cabinet, branch gas mass flow meters, a fine tuning knob, a gas buffer tank, a digital display pressure gage, a master gas mass flow meter, a data transmission line and a computer. The gas dissipation simulating mechanism comprises a branch pipeline, a mining steel bar, an experiment box, a base and mining hydraulic cylinders. The gas gushing simulating system used in physics resemble simulation experiments can be used for simulating the gushing rule of gas under the coal mining condition and brings convenience to research on gas migration and gas extraction in overlying strata under the influence of mining moves.
Description
Technical field
The present invention relates to seam mining experimental provision technical field, more particularly relate to a kind of real for physical simulation
Gas analog systems in testing.
Background technology
China is world's first coal power, and coal production accounts for the 48.3% of the world, and coal is again the main of China simultaneously
The energy, accounts for the 76% and 69% of primary energy production and consumption total amount respectively.It is current scientific research one that coal and gas safety are adopted altogether
Great problem.The large scale mining of coal so that the seam mining degree of depth is constantly deepened, and in coal seam, gas pressure is increased dramatically,
Causing face gas outburst amount to steeply rise, serious mash gas dynamic phenomenon occurs again and again, and gas combustion, blast even occur
And the serious accident of coal and gas prominent etc, serious threat mine safety production, causes great casualties, economy
Loss and bad social influence.For effectively eliminating the loss that Gas Disaster brings to economic society, scholars have been carried out greatly
Quantity research, one of effective means of gas preventing and control formulates rational gas pumping scheme exactly, but gas pumping scheme is reasonable
Whether, there is greatest relation with the migratory concentration of seam mining gas.Present stage, many scholars exist for research seam mining gas
Migratory concentration rule in overlying strata crack, a kind of effective means are through physical simulation experiment, but in prior art,
Gushing out of seam mining after gas of simulation is still difficult to accurately, it is therefore necessary to researches and develops and a kind of can simulate Gas
Device.
Summary of the invention
It is an object of the invention to provide a kind of Gas analog systems in physical simulation is tested, be used for
Under the conditions of simulation seam mining, the Emission Law of gas, is carried by gas migration, gas pumping in overlying strata under mining influence for research
For convenient.
The present invention is achieved in that a kind of Gas analog systems in physical simulation is tested, including
Gas injecting mechanism and gas dissipation simulation mechanism；
Described gas injecting mechanism includes that gas cabinet, gas cylinder, gas pressure reducer, gas main road, gas inject control
Cabinet processed, point mass-flow gas meter, vernier knob, gas buffer tank, digital display manometer, total mass-flow gas meter, data pass
Defeated line and computer；Described gas cylinder is arranged in gas cabinet, and described gas is provided with gas buffer tank, number in injecting switch board
Aobvious Pressure gauge, total mass-flow gas meter and multiple points of mass-flow gas meters, described gas cylinder is provided with gas pressure reducer,
Described gas pressure reducer connects then access gas buffer tank with gas main road, and described gas buffer tank is provided with digital display pressure
Table, described gas buffer tank connects total mass-flow gas meter by gas transfer pipeline, and total mass-flow gas meter is out
Gas is respectively connecting to each point of mass-flow gas meter through multi-channel pipeline, connects each passage of each point of mass-flow gas meter
Pipeline enters the size of gas flow and is adjusted by vernier knob, and the gas outlet of each point of mass-flow gas meter connects respectively
Branch pipeline, described digital display manometer, total mass-flow gas meter is had to be connected to computer through data line；
Described gas dissipation simulation mechanism includes branch pipeline, exploitation bar steel, experimental box body, pedestal and exploitation hydraulic cylinder, institute
The bottom stating experimental box body is provided with pedestal, is provided with exploitation hydraulic cylinder in described pedestal, and being provided above of described pedestal is many
Individual exploitation bar steel closely, the bottom of each exploitation bar steel is supported by 2 exploitation hydraulic cylinders in parallel, described branch pipeline
Deliver the gas to exploit bar steel.
Further, the inner hollow of described exploitation bar steel, the upper surface of described exploitation bar steel is evenly arranged with dissipation hole, institute
The lower surface stating exploitation bar steel is provided with pipeline air inlet and is fixed with downwards steel pipe, under described steel pipe in pipeline air inlet position
End is connected with branch pipeline.
Further, described total mass-flow gas meter and a point mass-flow gas meter are MF mass-flow gas meter.
There is advantages that
The invention provides a kind of Gas analog systems in physical simulation is tested, inject including gas
Mechanism and gas dissipation simulation mechanism, it is possible to the Emission Law of gas under the conditions of simulating seam mining, adopted for research
Under the influence of in overlying strata gas migration, gas pumping provide convenient.The present invention can simulate Gas by regulation gas flow,
Gas circuit design uses surge tank buffering voltage stabilizing, simulates gas pressure size, be also the big characteristic of one, and by pressure, flow
Preserve etc. the most incoming computer of data, experiment subsequent analysis data are had the biggest help.In analog systems of the present invention, gas by
Gas cylinder injects switch board to gas, then respectively enters bar steel through branch pipeline, eventually passes the dissipation hole of bar steel upper surface
Being emitted to goaf uniformly, simulating by mining influence Gas is also one to innovate greatly, not only solves experimental model
Seam mining problem, also solves the problem of modelling that gas point source gushes out.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 provides a kind of signal of Gas analog systems in physical simulation is tested for the embodiment of the present invention
Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
What Fig. 1 was exemplary shows that a kind of gas in physical simulation is tested that the embodiment of the present invention provides gushes
Go out to simulate system schematic.A kind of Gas simulation in physical simulation is tested that the embodiment of the present invention provides is
System, dissipates simulation mechanism including gas injecting mechanism and gas；
As it is shown in figure 1, gas injecting mechanism include gas cabinet 1, gas cylinder 2, gas pressure reducer 3, gas main road 4,
Gas injects switch board 5, point mass-flow gas meter 6, vernier knob 7, gas buffer tank 8, digital display manometer 9, total gas matter
Amount effusion meter 10, data line 11 and computer 12；Gas cylinder 2 is arranged in gas cabinet 1, and gas sets in injecting switch board 5
It is equipped with gas buffer tank 8, digital display manometer 9, total mass-flow gas meter 10 and multiple points of mass-flow gas meters 6, gas steel
Bottle 2 is provided with gas pressure reducer 3, and gas pressure reducer 3 connects then access gas buffer tank 8, gas buffer with gas main road 4
Tank 8 is provided with digital display manometer 9, and gas buffer tank 8 connects total mass-flow gas meter 10, total gas by gas transfer pipeline
Mass flowmenter 10 gas out is respectively connecting to each point of mass-flow gas meter 6 through multi-channel pipeline, connects each point of gas
Each passage tube of mass flowmenter 6 enters the size of gas flow and is adjusted by vernier knob 7, each point of gas mass flow
The gas outlet of gauge 6 is connected to branch pipeline 13, and digital display manometer 9, total mass-flow gas meter 10 are through data line
11 are connected to computer 12；
Described gas dissipation simulation mechanism includes branch pipeline 13, exploitation bar steel 14, experimental box body 15, pedestal 16 and exploitation liquid
Cylinder pressure 17, the bottom of experimental box body 15 is provided with pedestal 16, is provided with exploitation hydraulic cylinder 17 in pedestal 16, and the top of pedestal 16 sets
Being equipped with multiple exploitation bar steel 14 closely, each exploitation bar steel 14 is supported by 2 exploitation hydraulic cylinders 17 in parallel, is in charge of
Road 13 delivers the gas to exploit bar steel 14.
Total mass-flow gas meter 10 and a point mass-flow gas meter 6 are MF5700 mass-flow gas meter.
A kind of Gas analog systems in physical simulation is tested that the embodiment of the present invention provides, mainly uses
In physical simulation is tested, simulate the Emission Law by mining influence gas, and then research gas is in overlying strata crack
Migratory concentration.The present invention is gas injecting mechanism autonomous Design researched and developed and gas dissipation simulation mechanism combination, can
Gas in accurate simulation goaf.When utilizing this system to carry out Gas Emission Law simulation, can be according to as follows
Mode is carried out:
(1) calculated by the theory of similarity, obtain the coal petrography characteristic for a certain specific mine, obtain joining of analog material
Ratio.According to the amount of analog material needed for layer each in good modelling, weigh up its weight respectively, add water and various dispensings are loaded
In agitating device, stir, the material stirred is poured in experimental box body 15, then carry out Ramming operation.For certain
The rock stratum block diagram of one specific mine, according to proportioning, continues to allot second layer analog material, loads experiment porch casing after stirring
In 15, by that analogy, completing experimental model and make, model is 3m × 2.5m × 1.8m after completing.
(2) after model dries, carry out physical simulation experiment, be first to fall exploitation hydraulic cylinder 17, drive exploitation
Bar steel 14, the recovery process in simulation coal seam.
(3) open gas pressure reducer 3, the gases at high pressure of gas cylinder 2 through air relief valve 3 reduce pressure after, gas coming through house steward
Road 4 enters gas and injects switch board 5；Gas injects switch board 5 and plays two effects, and first is stable the blowing pressure, inflation pressure
Power is similar to the coal-bed gas pressure of simulation；Second is the shunting of methane gas, by multi-channel pipeline, is covered with multiple respectively
The bar steel of micropore individually connects, and can play accurate simulation gas effect, i.e. can simulate deep, goaf to superficial part watt
This change of gushing out, and the impact that fltting speed is on Gas.
(4) enter gas and inject the methane gas of switch board 5, first flow through gas buffer tank 8, play blood pressure lowering and the work of voltage stabilizing
With, then flowing through digital display manometer 9, total mass-flow gas meter 10, flow is with pressure data by data line 11 constantly
Incoming computer preserves, and gas enters multi-channel pipeline afterwards, and each path enters the size of flow and adjusted by vernier knob 7
Joint, is shown by MF5700 mass-flow gas meter 6, the amount of entrance draws according to experimental calculation.
(5) flow accurately regulated through each path is entered into by the pedestal 16 of experimental box body 15 by branch pipeline 13
Exploitation bar steel 14, is emitted to goaf uniformly finally by micropore, and accurately simulation is affected the rule of gushing out of gas by Seam Mining
Rule.
(6) gas data collecting system is started, by gathering direction, deep, goaf, along work surface direction and Vertical Square
The upwards concentration parameter of gas, pressure parameter, after experiment terminates, disposal data analyzes gas under this kind of formation geology is adjusted
Migration rule, finds rich region, provides foundation for gas pumping.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. the Gas analog systems in physical simulation is tested, it is characterised in that include gas implanter
Structure and gas dissipation simulation mechanism；
Described gas injecting mechanism includes gas cabinet (1), gas cylinder (2), gas pressure reducer (3), gas main road (4), gas
Body inject switch board (5), point mass-flow gas meter (6), vernier knob (7), gas buffer tank (8), digital display manometer (9),
Total mass-flow gas meter (10), data line (11) and computer (12)；Described gas cylinder (2) is arranged at gas cabinet (1)
In, described gas is provided with gas buffer tank (8), digital display manometer (9), total mass-flow gas meter in injecting switch board (5)
(10) and multiple points of mass-flow gas meters (6), described gas cylinder (2) is provided with gas pressure reducer (3), described gas decompression
Valve (3) connects with gas main road (4) and then accesses gas buffer tank (8), and described gas buffer tank (8) is provided with digital display pressure
Table (9), described gas buffer tank (8) connects total mass-flow gas meter (10), total gas mass flow by gas transfer pipeline
Gauge (10) gas out is respectively connecting to each point of mass-flow gas meter (6) through multi-channel pipeline, connects each point of gas matter
Each passage tube of amount effusion meter (6) enters the size of gas flow and is adjusted by vernier knob (7), each point of gaseous mass
The gas outlet of effusion meter (6) is connected to branch pipeline (13), described digital display manometer (9), total mass-flow gas meter
(10) it is connected to computer (12) through data line (11)；
Described gas dissipation simulation mechanism includes branch pipeline (13), exploitation bar steel (14), experimental box body (15), pedestal (16) and opens
Adopting hydraulic cylinder (17), the bottom of described experimental box body (15) is provided with pedestal (16), and described pedestal is provided with exploitation liquid in (16)
Cylinder pressure (17), described pedestal (16) be provided above multiple exploitation bar steel (14) closely, each exploitation bar steel
(14) being supported by 2 exploitation hydraulic cylinders (17) in parallel, described branch pipeline (13) delivers the gas to exploit bar steel (14).
A kind of Gas analog systems in physical simulation is tested, its feature exists
In, the inner hollow of described exploitation bar steel (14), the upper surface of described exploitation bar steel (14) is evenly arranged with dissipation hole, described in open
The lower surface adopting bar steel (14) is provided with pipeline air inlet and is fixed with downwards steel pipe (18), described steel pipe in pipeline air inlet position
(18) lower end is connected with branch pipeline (13).
A kind of Gas analog systems in physical simulation is tested, its feature exists
In, described total mass-flow gas meter (10) and a point mass-flow gas meter (6) are MF5700 mass-flow gas meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298450.2A CN106050295B (en) | 2016-04-28 | 2016-04-28 | A kind of Gas simulation system in the experiment for physical simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298450.2A CN106050295B (en) | 2016-04-28 | 2016-04-28 | A kind of Gas simulation system in the experiment for physical simulation |
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| Publication Number | Publication Date |
|---|---|
| CN106050295A true CN106050295A (en) | 2016-10-26 |
| CN106050295B CN106050295B (en) | 2018-04-24 |
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| CN201610298450.2A Expired - Fee Related CN106050295B (en) | 2016-04-28 | 2016-04-28 | A kind of Gas simulation system in the experiment for physical simulation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088978A (en) * | 2017-12-13 | 2018-05-29 | 中国矿业大学 | A kind of three-dimensional analog simulation experimental rig for adopting strata movement and gas migration |
| CN109164104A (en) * | 2018-09-18 | 2019-01-08 | 太原理工大学 | A kind of abandoned mine goaf gas-liquid two-phase adverse current visual Simulation pilot system |
| CN109696096A (en) * | 2019-02-01 | 2019-04-30 | 中国矿业大学(北京) | A kind of engineering explosion disturbance physical model experiment device and experimental method |
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| CN103775122A (en) * | 2014-02-25 | 2014-05-07 | 中国矿业大学(北京) | Simulation experiment device of gas extraction and coal spontaneous combustion of spontaneous combustion-prone and high gas concentration coal seam goaf |
| CN103956105A (en) * | 2014-04-23 | 2014-07-30 | 西安科技大学 | Miniature three-dimensional physical similarity simulation experiment table of goaf gas transport rules |
| CN203772840U (en) * | 2014-04-15 | 2014-08-13 | 西安科技大学 | Coal and gas outburst simulation and coal body permeability testing device |
| CN203787002U (en) * | 2014-04-23 | 2014-08-20 | 西安科技大学 | Physical similarity simulation experiment table for coal-seam gas displacement achieved by gas injection |
| CN203949689U (en) * | 2014-07-09 | 2014-11-19 | 西安科技大学 | A kind ofly study the experimental provision that extraction negative pressure affects gas pumping efficiency |
| CN104564125A (en) * | 2014-12-02 | 2015-04-29 | 河南理工大学 | Soft coal reservoir gas enhanced extraction contrast experiment device and experiment method |
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2016
- 2016-04-28 CN CN201610298450.2A patent/CN106050295B/en not_active Expired - Fee Related
Patent Citations (6)
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| CN103775122A (en) * | 2014-02-25 | 2014-05-07 | 中国矿业大学(北京) | Simulation experiment device of gas extraction and coal spontaneous combustion of spontaneous combustion-prone and high gas concentration coal seam goaf |
| CN203772840U (en) * | 2014-04-15 | 2014-08-13 | 西安科技大学 | Coal and gas outburst simulation and coal body permeability testing device |
| CN103956105A (en) * | 2014-04-23 | 2014-07-30 | 西安科技大学 | Miniature three-dimensional physical similarity simulation experiment table of goaf gas transport rules |
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| CN203949689U (en) * | 2014-07-09 | 2014-11-19 | 西安科技大学 | A kind ofly study the experimental provision that extraction negative pressure affects gas pumping efficiency |
| CN104564125A (en) * | 2014-12-02 | 2015-04-29 | 河南理工大学 | Soft coal reservoir gas enhanced extraction contrast experiment device and experiment method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088978A (en) * | 2017-12-13 | 2018-05-29 | 中国矿业大学 | A kind of three-dimensional analog simulation experimental rig for adopting strata movement and gas migration |
| CN109164104A (en) * | 2018-09-18 | 2019-01-08 | 太原理工大学 | A kind of abandoned mine goaf gas-liquid two-phase adverse current visual Simulation pilot system |
| CN109164104B (en) * | 2018-09-18 | 2021-02-12 | 太原理工大学 | Gas-liquid two-phase countercurrent visual simulation test system for abandoned mine goaf |
| CN109696096A (en) * | 2019-02-01 | 2019-04-30 | 中国矿业大学(北京) | A kind of engineering explosion disturbance physical model experiment device and experimental method |
| CN109696096B (en) * | 2019-02-01 | 2020-01-14 | 中国矿业大学(北京) | Engineering blasting disturbance physical model experiment device and experiment method |
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| Publication number | Publication date |
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| CN106050295B (en) | 2018-04-24 |
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