CN206489134U - A kind of coal and gas prominent dynamic impact problem experiment on evolution device - Google Patents
A kind of coal and gas prominent dynamic impact problem experiment on evolution device Download PDFInfo
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- CN206489134U CN206489134U CN201621408065.0U CN201621408065U CN206489134U CN 206489134 U CN206489134 U CN 206489134U CN 201621408065 U CN201621408065 U CN 201621408065U CN 206489134 U CN206489134 U CN 206489134U
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Abstract
Include the prominent dynamical system of simulation the utility model discloses a kind of coal and gas prominent dynamic impact problem experiment on evolution device, Roadway model system, digital image acquisition system, wherein Roadway model system and data image capturing system is both placed in experimental provision supporting table, the prominent dynamical system of simulation is connected with Roadway model system by flange, digital image acquisition system is connected at the digital image acquisition of Roadway model system mouthful, gas coal powder two-phase flow is induced to protrude by simulating prominent dynamical system, and then realize the monitoring to two phase flow Evolution in the simulation system of tunnel using digital image acquisition system, the utility model is novel in design, by monitoring dish out coal dust migration characteristics and gas air-flow streamline, the velocity variations of impact air-flow of the prominent power of monitoring in different bifurcation angle tunnels, pressure change, realize and coal and gas prominent dynamic impact problem evolution Feature is simulated.
Description
Technical field
The utility model belongs to laboratory simulation coal and gas prominent, and coal is moved with gas two phase flow during research is prominent
The protrusion dynamical evolution experimental provision of rule.
Background technology
Coal and gas prominent is disaster extremely serious in coal production, and the prominent enormous motivation produced can destroy underground
Facility, cause casualties.Because coal and gas prominent process dynamical evolution field experiment is difficult to carry out, laboratory research coal with
The important means that the dynamical evolution feature that Gas Outburst is protruded turns into；The experimental provision tunnel of existing coal and gas prominent simulation
Arrangement is relatively simple, the influence that tunnel bifurcation angle change decays to power during protrusion is not considered, and lack to projecting over
The monitoring of coal dust and gas air-flow interaction experiment parameter in journey, and coal dust is that coal and gas prominent is moved with gas interaction
The important parameter of power decay, therefore in order to preferably study coal and gas prominent dynamic impact problem evolutionary process, it is necessary to existing
Experimental provision be improved.The operation of coal and gas prominent dynamical evolution experimental provision is relatively simple quick, the data of generation and
Image can test speed of the prominent power in the communication process of different bifurcation angle tunnels and become by computer system processor
Change, pressure change and flow pattern, realize that coal dust impact air-flow attenuation law in process monitoring and different type tunnel of dishing out is tested, take off
Show the characteristics of motion for projecting over rear coal and gas two phase flow, study dynamical evolution feature after protruding.
Utility model content
The utility model analyses in depth coal dust gas after protruding to further investigate the dynamic effect after coal and gas prominent
The characteristics of motion of two phase flow passes through prison there is provided a kind of coal and gas prominent dynamic impact problem experiment on evolution device, the experimental provision
The migration characteristics of prominent coal dust and gas air-flow are surveyed, different bifurcation angle roadway bump wave pressures are tested, a variety of feelings of simulation are realized
Coal and gas prominent dynamic impact problem evolution Feature under condition.
The utility model is adopted the following technical scheme that：A kind of coal and gas prominent dynamic impact problem experiment on evolution device, including
The prominent dynamical system of simulation, Roadway model system, digital image acquisition system, experimental provision supporting table, wherein simulation is prominent dynamic
Force system, Roadway model system and data image capturing system are both placed in experimental provision supporting table, the prominent dynamical system of simulation
System is connected with Roadway model system by flange, and digital image acquisition system is connected to the digital image acquisition of Roadway model system
At mouthful.
Described simulation, which protrudes dynamical system, includes the prominent power house of simulation, valve, pressure gauge, vacuum meter, inflation inlet, mould
It is the circular cylindrical cavity that stainless steel is made to intend prominent power house, and compressive resistance is 5MPa, and sealing is fabulous, the prominent power house of simulation
Left end be provided with inflation inlet, the prominent power house upper end of simulation is equipped with can by inflation inlet in pressure gauge and vacuum meter, experimentation
Certain density methane gas is filled with toward the prominent power house of simulation.
Described valve is arranged on the right-hand member of the prominent power house of simulation, during coal and gas prominent Preparatory work of experiment, beats
Valve opening door, coal dust needed for can loading experiment toward the prominent power house of simulation, after the completion of coal dust is filled, closes valve, is carried out in experiment
During, rotatable opening, which induces, to be protruded.
Described Roadway model system includes bifurcated lane in four-way pipe, the straight lane of simulation driving face, simulation, divides in simulation
Pitch lane, simulation lower bifurcation lane, flange, digital image acquisition mouthful, wherein bifurcated lane, mould in the straight lane of simulation driving face, simulation
In plan three digital image acquisitions mouthful, and the length in the straight lane of simulation driving face are provided with bifurcated lane and simulation lower bifurcation lane
For 90cm, a diameter of 10mm, its left port is connected by the right output port of flange and the prominent power house of simulation, simulates headwork
The length that the right output port in Mian Zhi lanes is connected to bifurcated lane in the left port of four-way pipe, simulation by flange is 359.5cm, a diameter of
10mm, the length that its lower port is connected to bifurcated lane in the upper port of four-way pipe, simulation by flange is 194.5cm, diameter
For 10mm, its left port is connected to the middle port of four-way pipe by flange, and the length in simulation lower bifurcation lane is 219.5cm, directly
Footpath is 10mm, and its upper port is connected to the lower port of four-way pipe, and the upper bifurcated lane of simulation and bifurcated lane in simulation by flange
Angle counterclockwise 60 °, simulation lower bifurcation lane with simulation in bifurcated lane angle clockwise 30 °.
Described digital image acquisition system includes schlieren, high-speed camera, gathering line, data acquisition unit, computer
System, velocity sensor, pressure sensor, wherein schlieren one, for observing Field Characteristics, high-speed camera one is used
Carry out observed image feature, schlieren and high-speed camera are that movement is used, and can need to be placed on different numbers according to experiment
According to observation at IMAQ mouthful.
Described velocity sensor is adopted international standards 0~5V of signal outputs, and the scope that tests the speed is 0~500m/s, and frequency is
1000kHz, class of accuracy is 0.5 grade, has nine, one end of velocity sensor is arranged at digital image acquisition mouthful, separately
One end is connected at data acquisition unit by gathering line, and data acquisition unit is connected in computer system by gathering line.
Described pressure sensor is adopted international standards 0~5V of signal outputs, and pressure measurement scope is 0~1.0MPa, and frequency is
1000kHz, class of accuracy is 0.5 grade, has nine, one end of pressure sensor is arranged at digital image acquisition mouthful, separately
One end is connected at data acquisition unit by gathering line, and data acquisition unit is connected in computer system by gathering line.
The frequency acquisition of described data acquisition unit reaches 1000kHz, has had both the work(of data acquisition, record and controller
Can, support all universal class measurements, the output of 4-20mA electric currents.
Described experimental provision supporting table include Left-side support platform, Right side support platform, connecting tube, telescoping shoring column, wherein
Left-side support platform and Right side support platform are connected by connecting tube, and Left-side support platform is entity structure, and lower end is placed on the ground, right
The lower end of side supporting table is fixed on the ground by telescoping shoring column, and telescoping shoring column is designed as Collapsible structure, scalable branch
The angle of the flexible adjustable Right side support platform of frame.
Brief description of the drawings
Fig. 1 is the utility model integral experiment schematic device
Fig. 2 is the prominent dynamical system schematic diagram of the utility model simulation
Fig. 3 is the utility model Roadway model system schematic
Fig. 4 is the utility model digital image acquisition system schematic
Fig. 5 is the utility model high-speed camera schematic diagram
Fig. 6 is the utility model experimental provision supporting table schematic diagram
Embodiment
As shown in Fig. 1~Fig. 6, the utility model is a kind of coal and gas prominent dynamic impact problem experiment on evolution device, by mould
Intend prominent dynamical system 1, Roadway model system 2, digital image acquisition system 3, experimental provision supporting table 4, wherein simulation is protruded
Dynamical system 1, Roadway model system 2 and data image capturing system 3 are both placed in experimental provision supporting table 4, and simulation is protruded
Dynamical system 1 is connected with Roadway model system 2 by flange 2061, and digital image acquisition system 3 is connected to Roadway model system 2
On digital image acquisition mouthfuls 207 at；The prominent dynamical system 1 of simulation includes the prominent power house 101 of simulation, valve 102, pressure gauge
103, vacuum meter 104, inflation inlet 105 is constituted, and the prominent power house 101 of simulation is the circular cylindrical cavity that stainless steel is made, resistance to pressure
Spend for 5MPa, sealing is fabulous, the left end of the prominent power house 101 of simulation is provided with inflation inlet 105, the prominent power house 101 of simulation
End is equipped with pressure gauge 103 and vacuum meter 104, and the right-hand member of the prominent power house 101 of simulation is equipped with valve 102, and valve 102 is opened and can lured
Conductive gas is protruded, while coal dust needed for valve 102 is experiment is filled in mouth, experimentation, the prominent power house 101 of simulation can lead to
Overcharge the methane gas that gas port 105 is filled with needed for experiment；Roadway model system 2 is by four-way pipe 201, the straight lane of simulation driving face
202, bifurcated lane 203 in simulation, bifurcated lane 204 in simulation, simulation lower bifurcation lane 205, flange 2061,2062,2063,2064,
2065, digital image acquisition mouthful 207 is constituted, wherein bifurcated lane 203 in the straight lane 202 of simulation driving face, simulation, divides in simulation
Three digital image acquisitions mouthful 207, and the straight lane 202 of simulation driving face are provided with fork lane 204 and simulation lower bifurcation lane 205
Length be 90cm, a diameter of 10mm, its left port passes through flange 2061 and the right output port of the prominent power house 102 of simulation connects
Connect, the right output port in the straight lane 202 of simulation driving face, which is connected to by flange 2062 in the left port of four-way pipe 201, simulation, divides
The length for pitching lane 203 is 359.5cm, and a diameter of 10mm, its lower port is connected to the upper end of four-way pipe 201 by flange 2063
Mouthful, the length in bifurcated lane 204 is 194.5cm in simulation, and a diameter of 10mm, its left port is connected to four-way by flange 2064
The middle port of pipe 201, the length in simulation lower bifurcation lane 205 is 219.5cm, and a diameter of 10mm, its upper port passes through flange
2065 are connected to the lower port of four-way pipe 201, and the angle in the upper bifurcated lane 203 of simulation and bifurcated lane 204 in simulation is square counterclockwise
To 60 °, 30 ° clockwise of the angle in simulation lower bifurcation lane 205 and bifurcated lane 204 in simulation；Digital image acquisition system 3 is wrapped
Include schlieren, high-speed camera 301, gathering line 302, data acquisition unit 303, computer system 304, velocity sensor, pressure
Sensor, wherein schlieren one, for observing Field Characteristics, high-speed camera 301 1, for observed image feature, line
Shadow instrument and high-speed camera 301 use for movement, can be needed to be placed at different digital image acquisition mouthful 207 according to experiment
Observation, velocity sensor and pressure sensor have nine, are separately mounted at nine digital image acquisitions mouthful, and pass through collection
Line 302 is connected at data acquisition unit 303, and data acquisition unit 303 is connected in computer system 304 by gathering line 302,
Velocity sensor adopt international standards 0~5V of signal output, the scope that tests the speed be 0~500m/s, frequency is 1000kHz, the degree of accuracy
Grade is 0.5 grade, and pressure sensor is adopted international standards 0~5V of signal outputs, and pressure measurement scope is 0~1.0MPa, and frequency is
1000kHz, class of accuracy is 0.5 grade, and the frequency acquisition of data acquisition unit 303 reaches 1000kHz, has had both data acquisition, note
Record and the function of controller, support all universal class measurements, the output of 4-20mA electric currents；Experimental provision supporting table 4 includes a left side
Side supporting table 401, Right side support platform 402, connecting tube 403, wherein telescoping shoring column 404, Left-side support platform 401 and Right side support
Platform 402 is connected by connecting tube 403, and Left-side support platform 401 is entity structure, and lower end is placed on the ground, Right side support platform 402
Lower end fixed on the ground by telescoping shoring column 404, telescoping shoring column 404 is designed as Collapsible structure, telescoping shoring column
The angle of 404 flexible adjustable Right side support platform 402.
A kind of principle of coal and gas prominent dynamic impact problem experiment on evolution device of the present utility model is described below：
A kind of coal and gas prominent dynamic impact problem experiment on evolution device core be Roadway model it is adjustable bring it is various
Property combination with the real-time high efficiency of digital image acquisition system.After experimental provision is completed, Roadway model is fixed
In adjustable angle type supporting table, in the simulation prominent power house preparatory stage, it is first turned on simulating prominent power house right-hand member
Valve, loads coal dust needed for experiment, after the completion of coal dust is filled, and closes valve, then opens filling for the prominent power house left end of simulation
Gas port is filled with the methane gas needed for experiment, after the completion of inflation, closes inflation inlet；During experiment is carried out, simulation is opened prominent
The valve induction gas-coal powder two-phase flow for going out power house right-hand member is protruded.By monitoring dish out coal dust migration characteristics and device in Gas
Streamline is flowed, the velocity variations of impact air-flow of the prominent power of monitoring in different bifurcation angle tunnels, pressure change is realized to coal
Simulated with Gas Outburst dynamic impact problem evolution Feature.
Claims (9)
1. a kind of coal and gas prominent dynamic impact problem experiment on evolution device, including the prominent dynamical system of simulation, Roadway model system,
Digital image acquisition system, experimental provision supporting table, wherein the prominent dynamical system of simulation, Roadway model system and data image are adopted
Collecting system is both placed in experimental provision supporting table, and the prominent dynamical system of simulation is connected with Roadway model system by flange, number
It is connected to according to image capturing system at the digital image acquisition of Roadway model system mouthful.
2. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 1, it is characterised in that：It is described
Simulation protrude dynamical system and include the prominent power house of simulation, valve, pressure gauge, vacuum meter, inflation inlet, the prominent power house of simulation
The circular cylindrical cavity being made for stainless steel, compressive resistance is 5MPa, and sealing is fabulous, and the left end of the prominent power house of simulation, which is provided with, to be filled
Gas port, the prominent power house upper end of simulation is equipped with pressure gauge and vacuum meter, experimentation can be prominent dynamic toward simulation by inflation inlet
Power room is filled with certain density methane gas.
3. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 2, it is characterised in that：It is described
Valve be arranged on the right-hand member of the prominent power house of simulation, during coal and gas prominent Preparatory work of experiment, open valve, can be toward mould
Intend prominent power house and load coal dust needed for experiment, after the completion of coal dust is filled, close valve, it is rotatable during experiment is carried out
Open to induce and protrude.
4. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 1, it is characterised in that：It is described
Roadway model system include bifurcated lane, bifurcated lane in simulation, under simulation in four-way pipe, simulation driving face straight lane, simulation
Bifurcated lane, flange, digital image acquisition mouthful, wherein bifurcated lane in the straight lane of simulation driving face, simulation, in simulation bifurcated lane with
Three digital image acquisitions mouthful are provided with simulation lower bifurcation lane, and the length in the straight lane of simulation driving face is 90cm, diameter
For 10mm, its left port is connected by the right output port of flange and the prominent power house of simulation, the right side in the straight lane of simulation driving face
Port is connected to the length in bifurcated lane in the left port of four-way pipe, simulation by flange for 359.5cm, a diameter of 10mm, it
Lower port is connected to the length in bifurcated lane in the upper port of four-way pipe, simulation by flange for 194.5cm, a diameter of 10mm, it
Left port be connected to the middle port of four-way pipe by flange, the length in simulation lower bifurcation lane is 219.5cm, a diameter of 10mm,
Its upper port is connected to the lower port of four-way pipe, and the angle inverse time in the upper bifurcated lane of simulation and bifurcated lane in simulation by flange
60 ° of pin direction, 30 ° clockwise of the angle in simulation lower bifurcation lane and bifurcated lane in simulation.
5. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 1, it is characterised in that：It is described
Digital image acquisition system include schlieren, high-speed camera, gathering line, data acquisition unit, computer system, velocity pick-up
Device, pressure sensor, wherein schlieren one, for observing Field Characteristics, high-speed camera one is special for observed image
Levy, schlieren and high-speed camera are that movement is used, can be needed to be placed on different digital image acquisitions mouthful according to experiment
Place's observation.
6. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 5, it is characterised in that：It is described
Velocity sensor adopt international standards 0~5V of signal output, the scope that tests the speed be 0~500m/s, frequency is 1000kHz, accurately
It is 0.5 grade to spend grade, has nine, one end of velocity sensor is arranged at digital image acquisition mouthful, and the other end passes through collection
Line is connected at data acquisition unit, and data acquisition unit is connected in computer system by gathering line.
7. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 5, it is characterised in that：It is described
Pressure sensor adopt international standards 0~5V of signal output, pressure measurement scope be 0~1.0MPa, frequency is 1000kHz, accurately
It is 0.5 grade to spend grade, has nine, one end of pressure sensor is arranged at digital image acquisition mouthful, and the other end passes through collection
Line is connected at data acquisition unit, and data acquisition unit is connected in computer system by gathering line.
8. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 5, it is characterised in that：It is described
The frequency acquisition of data acquisition unit reach 1000kHz, had both the function of data acquisition, record and controller, supported all
Universal class is measured, the output of 4-20mA electric currents.
9. a kind of coal and gas prominent dynamic impact problem experiment on evolution device according to claim 1, it is characterised in that：It is described
Experimental provision supporting table include Left-side support platform, Right side support platform, connecting tube, telescoping shoring column, wherein Left-side support platform and
Right side support platform is connected by connecting tube, and Left-side support platform is entity structure, and lower end is placed on the ground, under Right side support platform
End is fixed on the ground by telescoping shoring column, and telescoping shoring column is designed as Collapsible structure, telescoping shoring column it is flexible adjustable
The angle of whole Right side support platform.
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| CN201621408065.0U CN206489134U (en) | 2016-12-20 | 2016-12-20 | A kind of coal and gas prominent dynamic impact problem experiment on evolution device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501463A (en) * | 2016-12-20 | 2017-03-15 | 中国矿业大学(北京) | A kind of coal and gas prominent dynamic impact problem experiment on evolution device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501463A (en) * | 2016-12-20 | 2017-03-15 | 中国矿业大学(北京) | A kind of coal and gas prominent dynamic impact problem experiment on evolution device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20191220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |