CN107389859A - Man-machine ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process - Google Patents
Man-machine ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process Download PDFInfo
- Publication number
- CN107389859A CN107389859A CN201710492158.9A CN201710492158A CN107389859A CN 107389859 A CN107389859 A CN 107389859A CN 201710492158 A CN201710492158 A CN 201710492158A CN 107389859 A CN107389859 A CN 107389859A
- Authority
- CN
- China
- Prior art keywords
- sensor
- pressure sensor
- coal
- straight tube
- tunnel
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Multimedia (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses " man-machine ring " in a kind of coal and gas prominent Catastrophe Process to be damaged simulation experiment method, and step is：1) tunnel is assembled；2) install sensor and " man-machine " model；3) camera and high-speed camera are installed；4) moulded coal making and box sealing；5) protrusion breeds；6) it is prominent to start；7) experiment is terminated.The present invention is using the form for simulating tunnel, transport conditions of the coal dust in tunnel and the destruction situation to " man-machine ring " after coal and gas prominent occurs can directly be observed by high-definition camera and high-speed camera, and unlike signal and synchronization process can be gathered by the sensor of the diverse location in tunnel, realize the visualization of coal and gas prominent, the test method can at utmost reduce field working conditions and have tunnel form changeable, collection signal enriches, the advantages that safe operation, calamity mechanism is caused to provide new research technique and method to " man-machine ring " for research coal and gas prominent.
Description
Technical field
The present invention relates to " people-machine-ring " in a kind of coal and gas prominent Catastrophe Process to be damaged simulation experiment method.
Background technology
Largely there is gas-coal dust of storm property when coal and gas prominent occurs within the of short duration time to roadway injection
Stream, mine facility is damaged, is caused casualties, or cause gas explosion, serious threat mine safety.Coal and gas prominent is well
It is lower to excavate the most complicated dynamic disaster phenomenon triggered.Coal and gas prominent occurs from theory to experiment for domestic and foreign scholars
General condition, coal and gas prominent mechanism and outburst prediction technology and outburst prevention measures have carried out numerous studies, in all fields
All have made great progress.
Because the danger that comprehensive real-time tracking research is carried out to live coal and gas prominent process is too big, researcher is big
More by developing corresponding experimental rig, the exploration of coal and gas prominent mechanism is carried out by laboratory simulation means.Learn in China
Person has carried out series of studies with reference to live coal and gas prominent data and has obtained good effect, if Jiang Cheng woodss are with one-dimensional experiment mould
Coal and gas prominent process when crossdrift under ideal conditions opens coal seam is intended；Meng Xiangyue etc. utilizes the experiment dress voluntarily developed
Put, carried out the two-dimensional analog experimental study of coal and gas prominent, it is found that the destruction of coal sample is present and ftracture and protrude two quasi-representatives
Failure mode；The three-dimensional coal and gas prominent simulation test device of Cai's successful design, drawn intensity of outburst and gas pressure,
The mathematical modeling of the relations such as coal mass strength, three-dimensional stress, gas pressure.
But the design of existing simulation test device is more single, can not more truly simulate mine laneway network, especially
It is to be rarely reported on " people-machine-ring " during coal and gas prominent impaired simulation experiment system and method；Sensor laying side
Formula is simple, and when studying the propagation law of two phase flow, existing apparatus is respectively mounted sensor in tunnel wall, can not obtain
Its real transport characteristics cannot also be furtherd investigate by the parameter in the middle part of coal-gas two phase flow migration section；Data are adopted
Collection is more single, and the data of collection can not be utilized to cause calamity mechanism to carry out further investigation coal and gas prominent；Visualization is not
Foot, it is still unclear to the true migration form of coal-gas two phase flow after associated analog experiment is carried out.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of coal and dashed forward with gas
Go out in Catastrophe Process " people-machine-ring " and be damaged simulation experiment method.
Technical solution of the present invention is as follows：
1) tunnel is assembled
1a) by left and right side by side in a manner of two row cross pipes are set, the number of the row cross pipe of the left side one is six,
The number of the row cross pipe of the right one is five, is connected in same column between two adjacent cross pipes by the square straight tube in longitudinal direction
Connect, the right one arranges the cross pipe of foremost one and connected by second cross pipe of laterally square straight tube and one row of the left side
Connect, the right one arranges the 3rd cross pipe, and by another, laterally square straight tube arranges the 4th cross pipe company with the left side one
Connect, the front port that the left side one arranges the cross pipe of foremost one connects pre-small post-large enlarging adapter, laterally square straight tube and
Observation window is equipped with the square straight tube in longitudinal direction, the rear port that a cross pipe backmost is arranged two connects dustproof cloth bag, respectively
The untapped port of cross pipe is by guard seal；
1b) connect tunnel and coal and gas prominent simulator stand：In the chamber of coal and gas prominent simulator stand
Rupture disk ring flange is installed in body position, reconnects ring flange and rupture disk clamper, and load testing program predetermined dimension simultaneously
Rupture disk two panels and blast signal sensor, with complete be classified explosion venting device installation, rupture disk is clamped using tracheae
Device is connected with methane gas cylinder；Rupture disk clamper is connected by guiding the enlarging of pipe and tunnel front end to take over；
2) install sensor and " people-machine " model
2a) pressure and temperature sensor：The square straight tube in longitudinal direction is identical with the mode of setting sensor on horizontal square straight tube,
That is, the both ends of each square straight tube are equipped with axially measured section, and the middle part of square straight tube sets side pressure Measure section, the axial direction
Measure section is provided with three pressure sensors, three temperature sensors and two concentration sensors, wherein, first pressure sensing
For device on the center line of corresponding square straight tube, second pressure sensor and the 3rd pressure sensor are located at first pressure sensor
On different concentric circles, and second pressure sensor and the 3rd pressure sensor be in the same side of first pressure sensor, and second
Pressure sensor is located at the oblique upper of first pressure sensor, the 3rd pressure sensor be located at first pressure sensor it is oblique under
It is square, it is equipped with temperature sensor beside first, second, third pressure sensor；Side pressure Measure section be provided with three by etc.
The side pressure sensor of lumbar triangle shape distribution, two of which side pressure sensor are located on the stringcourse of square straight tube both sides side wall, and the 3rd
Individual side pressure sensor is located at the bottom wall of square straight tube, and the side pressure sensor is pressure sensor or temperature sensor；Above-mentioned pressure
It is connected after after force snesor and temperature sensor installation with high-speed data acquisition instrument；
2b) concentration sensor：The upper and lower part of each square straight tube side wall is respectively arranged with concentration sensor, concentration sensor and
Second pressure sensor is lived apart in the both sides of first pressure sensor, the leading-out terminal and high-speed data acquistion system of concentration sensor
Connection；
2c) flowmeter：Flowmeter, connection flow gauge and high-speed data acquistion system are installed on guiding pipe；
Setting position 2d) being placed on manikin and machine mould in tunnel；
The tunnel preformed hole of non-install sensor position 2e) is sealed using closure plate or plug；
2f) after sensor installation, data logging software is opened, is checked all whether working properly with sensor；
3) camera and high-speed camera are installed
3a) camera：Camera is installed at the top of each cross pipe, camera is located in cross pipe,
Adjust camera shooting direction, make its be aligned coal-gas two phase flow come to；
3b) high-speed camera：Blast signal sensor and high-speed camera are connected, using camera mount by high-speed camera
Frame is located at the side of enlarging adapter, the enlarging of high-speed camera face is taken over the window opened up, and connect high-speed camera
Machine and visualization host computer；
The power switch for the light bar that camera, high-speed camera and tunnel top both sides are set 3c) is opened, is checked at a high speed
Video camera and camera and light bar whether normal work；
3d) by first, second, third predetermined pressure sensor, temperature sensor and side pressure sensor and DEWESoft
Hardware module is connected, and it is connected with visualization host computer；
4) moulded coal makes and experiment casing seals
4a) 4 formable layers of moulded coal point, i.e., one layer of coal sample first is spread in experiment casing bottom relevant position, while buried in coal sample
Enter sensor, be then press-formed；Then the second layer, third layer, the 4th layer of briquette molding are carried out successively；
Test specimen cover plate 4b) is installed and checks sealing effectiveness；
4c) joint test tank sensor device and computer；Connect air inlet pipe and vavuum pump and methane gas cylinder；
5) protrusion breeds
In 5a) the stress loading stage, stress loading and high-speed data acquistion system are opened, three directions of experiment casing are applied
Predeterminated level stress；
In 5b) the gas adsorption stage, start vavuum pump first and coal sample is vacuumized, to discharge air plankton, Ran Houguan
Vavuum pump is closed, and opens methane gas cylinder and is inflated, is adsorbed according to predetermined adsorption equilibrium air pressure；
6) it is prominent to start
6a) after coal body is adsorbed to predetermined state in experiment casing, data acquisition equipment is opened, camera signals collection is set
Standby, DEWESoft hardware and their corresponding software；
6b) classification explosion venting device is inflated, rupture disk venting of dust explosion moment closes gas cylinder, now blast signal sensor
Blast signal is transmitted to high-speed camera, and starts high-speed camera and is recorded a video；The signal of each sensor collection passes simultaneously
Transport to computer storage, DEWESoft hardware acceptances sensor signal and using high-speed camera gather image handled, it is right
The Evolution of each parameter cloud atlas of two phase flow is shown in tunnel；
After 6c) two phase flow injection stops, preserving related data, and continue to be monitored data, to gas density and
After dust concentration is reduced to predetermined safety value, related data is stored again, and closes all data collecting systems；
7) experiment is terminated
7a) protrude after terminating, the stacking states of coal dust in tunnel are observed by observation window, and photograph to record human body
The relevant position of model and machine mould；Observation window is dismantled, collects coal sample in tunnel and Dust-proof bag, gained coal sample is sieved whole
Reason；
7b) cleaning is completed in tunnel after coal sample, dismantles the device such as closure plate, sensor, high-speed camera in tunnel, and classification is whole
Replaced after reason, in case next time, experiment used.
The invention mainly comprises " the large-scale coal and gas prominent simulator stand of multi- scenarios method " with " coal and gas prominent moves
Power causes calamity Visualization roadway system ".The former for provide coal-gas two phase flow power set, the latter mainly provide coal-watt
The underground network that this two phase flow is migrated in underground.Clamper is provided with air-filled pore to meet tunnel venting of dust explosion demand, two rupture disks
Between leave certain space, the transition of air pressure and tunnel air pressure in the experiment casing on testing stand.
The laying of sensor should measure as far as possible more data messages using as far as possible few sensor.In each straightway
Arrange two axially measured sections, a side pressure Measure section.Axially measured section is mainly used in coal in tunnel-gas two phase flow
The measurement of Latitudinal section, side pressure section are mainly used in Pressure Analysis of the coal-gas two phase flow to tunnel wall action.
Axially measured section, during experiment, aspis center is centrally located in same horizontal line with tunnel, and aspis is
Circle, therefore can speculate that the parameter distribution rules such as the pressure of coal-gas two phase flow, temperature have certain centre symmetry, therefore,
The pressure of axially measured section, temperature sensor installation position are on the concentric circles different as the center of circle, radius using tunnel center；
Using the wherein side of laneway midline as main sensor arrangement scope, and intend accordingly analyzing each parameter on right side.Meanwhile
After prominent stop, gas concentration does not have mutation in the distribution of drift section, i.e. tunnel wall and tunnel center is dense
Degrees of data difference is little, considers fabrication design and concentration sensor mounting means, another side wall respectively disposes one up and down in tunnel
Individual concentration sensor.
Side pressure Measure section, each one of both sides on stringcourse, the lower surface in tunnel one, can install pressure sensor on center line
Or temperature sensor.Because axle pressure sensor is located inside tunnel, sensor sensing face is hung down with coal-gas two phase flow direction of motion
Directly, the data obtained is the result of solids and gas mixture comprehensive function.Side pressure sensor is then installed on tunnel wall, and the data obtained is main
For the result of gas pressure expansion.
Relative to other sensors, high-definition camera area of bed is larger, and can omnibearing observation lane in order to facilitate turning to
The flowing law of coal-gas two phase flow in road, in tunnel, the top of cross pipe sets high-definition camera.
High-speed camera is used as Photron high-speed cameras, its highest shooting speed is 800000fps, can to coal-watt
The movement locus of pulverized coal particle is captured in this two phase flow, beneficial to the meter for realizing the parameters such as coal-gas two phase flow instantaneous velocity
Calculate, it is used in combination with DEWESoft software and hardwares and respective sensor, and each parameter three-dimensional cloud of coal-gas two phase flow can be achieved
The drafting of figure.
Dummy, device model are placed on diverse location in tunnel by the present invention, while contrast the destruction of model before and after protrusion
Situation, transport conditions simultaneously combine the temporal and spatial evolution comprehensive analysis Gas Outbursts such as diverse location hitting power, gas density, temperature
Destruction situation and cause calamity mechanism to " people-machine-ring ".
In order to simplify structure, facilitate high-definition camera to install, turn to high-definition camera unaffected, and be advantageous to outside
The work pose of high-definition camera is observed in face, is provided with rectangular window in the middle part of the cross pipe roof, the rectangular window
Upper cover glass, the edge of the glass are compressed by the first press strip of square frame-shaped, and the first press strip passes through screw and cross pipe
It is fixed, in the bottom suspended fixing high-definition camera of glass.
For the ease of connection, make disassembling operations more convenient, four ports of the cross pipe are provided with square flange.
For the ease of with cross pipe, make disassembling operations easier, and be advantageous to observe coal-gas two phase flow outside
Situation, the port at each square straight tube both ends is provided with square flange, and the top of square straight tube sets two along its length
Watch window, transparent panel is covered on each watch window, the transparent panel is compressed by the second press strip of square frame-shaped.
For the ease of sensor install, it is ensured that sensor installation it is firm, first pressure sensor, second pressure sensor and
3rd pressure sensor is installed in the free end for the support being correspondingly arranged, and the temperature sensor beside each pressure sensor is also pacified
Loaded on same support, the side wall of the support from square straight tube stretches into, the side of the mounting seat of stent root and corresponding square straight tube
Wall is mutually fixed.
Preferably, the distance between the second pressure sensor and first pressure sensor are more than the 3rd pressure sensing
The distance between device and first pressure sensor, and the line of centres of second pressure sensor and first pressure sensor perpendicular to
The line of centres of 3rd pressure sensor and first pressure sensor.
Dismounted for the ease of concentration sensor, the first installing port is opened up in the side wall of square straight tube, concentration sensor is stretched
Enter in first installing port, the concentration sensor is installed on the first locating piece, and first locating piece is outer with square straight tube
Wall is close to, and is fixed by screw.
Dismounted for the ease of side pressure sensor, corresponded in square straight tube and the second installing port is opened up on the wall of side pressure sensor,
Side pressure sensor is stretched into second installing port, and the side pressure sensor is installed on the second locating piece, the second locating piece and side
The outer wall of shape straight tube is close to, and is fixed by screw.
Beneficial effect：The present invention can directly be seen using the form in simulation tunnel by high-definition camera and high-speed camera
Transport conditions of the coal dust in tunnel and the destruction situation to " people-machine-ring " after coal and gas prominent occurs are examined, and can be passed through
The sensor collection unlike signal and synchronization process of diverse location, realize the visualization of coal and gas prominent in tunnel,
The test method can at utmost reduce field working conditions and with tunnel form is changeable, collection signal it is abundant (strike force signal,
Vision signal, air pressure signal, temperature signal, concentration signal, flow signal etc.), safe operation the advantages that, be Study on Coal and gas
It is prominent to cause calamity mechanism to provide new research technique and method to " people-machine-ring ".
Brief description of the drawings
Fig. 1 is the structural representation in tunnel of the present invention.
Fig. 2 is the structural representation of cross pipe.
Fig. 3 is Fig. 2 top view.
Fig. 4 is the arrangement schematic diagram of axially measured section and side pressure Measure section.
Fig. 5 is the arrangement schematic diagram of each sensor of axially measured section.
Fig. 6 is the diagrammatic cross-section of square straight tube.
Fig. 7 is the arrangement schematic diagram of each sensor of side pressure Measure section.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figures 1 to 7, " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process, has
Following steps：
1) tunnel is assembled
1a) by left and right side by side in a manner of the cross pipe 1 that two row are parallel to each other, four ends of cross pipe 1 are set
Mouth is provided with square flange, and rectangular window is provided with the middle part of the roof of cross pipe 1, cover glass 14 on the rectangular window,
The edge of glass 14 is compressed by the first press strip 15 of square frame-shaped, and the first press strip 15 is connected by screw with cross pipe 1.The left side
The number of one row cross pipe 1 is six, and the number of the row cross pipe 1 of the right one is five, two adjacent cross in same column
Connected between pipe joint 1 by the square straight tube 2 in longitudinal direction, the row cross pipe 1 of foremost one of the right one passes through laterally square straight
Pipe 4 is connected with the left side one row, second cross pipe 1, and the right one arranges the 3rd cross pipe 1 by another transverse direction side
Shape straight tube 4 arranges the 4th cross pipe 1 with the left side one and is connected.Laterally square straight tube 4 is transversely to the machine direction square straight tube 2, both
Both preferably 400mmX400mm square tube, the both ends of each square straight tube are equipped with anti-flange.The left side one arranges foremost one ten
The front port of word pipe joint 1 connects pre-small post-large enlarging adapter 3, is laterally all provided with the square straight tube 2 of square straight tube 4 and longitudinal direction
There is observation window, connect dustproof cloth bag in the rear port that two arrange a cross pipe 1 backmost, each cross pipe 1 is not used
Port by guard seal.At the top of each square straight tube, two watch windows, each watch window are set along its length
Upper covering transparent panel 16, the transparent panel 16 compresses by the second press strip 17 of square frame-shaped, the second press strip 17 by screw with it is corresponding
Square straight tube is mutually fixed.
1b) connect tunnel and coal and gas prominent simulator stand：In the chamber of coal and gas prominent simulator stand
Rupture disk ring flange is installed in body position, reconnects ring flange and rupture disk clamper, and load testing program predetermined dimension simultaneously
Rupture disk two panels and blast signal sensor, with complete be classified explosion venting device installation, rupture disk is clamped using tracheae
Device is connected with methane gas cylinder；By rupture disk clamper by guiding pipe 11 to be connected with the enlarging adapter 3 of tunnel front end.
2) install sensor and " people-machine " model
2a) pressure and temperature sensor：The square straight tube 2 in longitudinal direction and the mode phase that sensor is laterally set on square straight tube 4
Together, i.e. the both ends of each square straight tube are equipped with axially measured section A, and the middle part of square straight tube sets side pressure Measure section B, axle
Three pressure sensors are provided with to Measure section A, respectively first pressure sensor 5, second pressure sensor the 6, the 3rd is pressed
Force snesor 7, these three pressure sensors are respectively positioned in corresponding square straight tube.Wherein, first pressure sensor 5 is positioned at corresponding
On the center line of square straight tube, it is different that the pressure sensor 7 of second pressure sensor 6 and the 3rd is located at first pressure sensor 5
On concentric circles, and the pressure sensor 7 of second pressure sensor 6 and the 3rd is in the same side of first pressure sensor 5, the second pressure
Force snesor 6 is located at the oblique upper of first pressure sensor 5, the 3rd pressure sensor 7 be located at first pressure sensor 5 it is oblique under
Side.First pressure sensor 5, the pressure sensor 7 of second pressure sensor 6 and the 3rd are installed in the support 18 being correspondingly arranged
Free end, the side wall of support 18 from the square straight tube stretches into, the mounting seat of the root of support 18 and the side wall of laterally square straight tube 6
It is mutually fixed.Preferably, the distance between second pressure sensor 6 and first pressure sensor 5 are more than the 3rd pressure sensor 7
The distance between first pressure sensor 5, and second pressure sensor 6 is vertical with the line of centres of first pressure sensor 5
In the line of centres of the 3rd pressure sensor 7 and first pressure sensor 5.
Three temperature sensors 8 and two concentration sensors 10 are additionally provided with the axially measured section A of each square straight tube,
Wherein, three temperature sensors 8 and first pressure sensor 5,6 and the 3rd pressure sensor of second pressure sensor 7 one a pair
Should, each temperature sensor 8 is located at the side of corresponding pressure sensor, and both are close, and temperature sensor 8 and corresponding pressure
Sensor is installed on same support 18.
The side pressure Measure section B of square straight tube is provided with three side pressure sensors 10 by isosceles triangle distribution, wherein
Two side pressure sensors 10 are located on the stringcourse of square straight tube both sides side wall, and the 3rd side pressure sensor 10 is located at square straight tube
Bottom wall, side pressure sensor 10 is pressure sensor or temperature sensor.The mounting means of side pressure sensor 10 is：Square
Straight tube is corresponded to and the second installing port is opened up on the wall of side pressure sensor 10, and side pressure sensor 10 is stretched into second installing port, side pressure
Sensor 10 is installed on the second locating piece 20, and the second locating piece 20 is close to the outer wall of square straight tube, and is fixed by screw.
Above-mentioned pressure sensor and temperature sensor are connected after installing with high-speed data acquisition instrument.
2b) concentration sensor：Concentration sensor 9, concentration sensor 9 are respectively arranged with the upper and lower part of square straight tube side wall
Live apart with second pressure sensor 6 in the both sides of first pressure sensor 5.The mounting means of concentration sensor 9 is：Square straight
The first installing port is opened up in the side wall of pipe, concentration sensor 9 is stretched into first installing port, and the concentration sensor 9 is installed on
On a positioning block 19, the first locating piece 19 is close to the outer wall of square straight tube, and is fixed by screw.Concentration sensor 9 goes out
Line end is connected with high-speed data acquistion system.
2c) flowmeter：Flowmeter 12, connection flow gauge 12 and high-speed data acquistion system are installed on guiding pipe 11.
Manikin 21 and machine mould 22 2d) are placed on to the testing position set in tunnel.
The tunnel preformed hole of non-install sensor position 2e) is sealed using closure plate or plug.
2f) after sensor installation, data logging software is opened, is checked all whether working properly with sensor.
3) camera and high-speed camera are installed
3a) camera：In the bottom suspended fixing camera of glass 14, camera is located in cross pipe 1, and adjustment is taken the photograph
As the shooting direction of head, make its be aligned coal-gas two phase flow come to.
3b) high-speed camera：Blast signal sensor and high-speed camera 13 are connected, will be taken the photograph at a high speed using camera mount
Camera 13 is set up in the side of enlarging adapter 3, makes the window opened up in the face enlarging adapter 3 of high-speed camera 13, and connect
High-speed camera 13 and visualization host computer.
The power switch for the light bar that camera, high-speed camera and tunnel top both sides are set 3c) is opened, is checked at a high speed
Video camera and camera and light bar whether normal work.
3d) by first, second, third predetermined pressure sensor 5,6,7, temperature sensor 8 and side pressure sensor 10 with
DEWESoft hardware modules are connected, and it is connected with visualization host computer.
4) moulded coal makes and experiment casing seals
4a) 4 formable layers of moulded coal point, i.e., one layer of coal sample first is spread in experiment casing bottom relevant position, while buried in coal sample
Enter sensor, be then press-formed；Then the second layer, third layer, the 4th layer of briquette molding are carried out successively.
Test specimen cover plate 4b) is installed and checks sealing effectiveness.
4c) joint test tank sensor device and computer；Connect air inlet pipe and vavuum pump and methane gas cylinder.
5) protrusion breeds
In 5a) the stress loading stage, stress loading and high-speed data acquistion system are opened, three directions of experiment casing are applied
Predeterminated level stress.
In 5b) the gas adsorption stage, start vavuum pump first and coal sample is vacuumized, to discharge air plankton, 4 hours
After close vavuum pump, and open methane gas cylinder and be inflated, adsorbed according to predetermined adsorption equilibrium air pressure, adsorption time 48 is small
When.
6) it is prominent to start
6a) after coal body is adsorbed to predetermined state in experiment casing, data acquisition equipment is opened, camera signals collection is set
Standby, DEWESoft hardware and their corresponding software.
6b) classification explosion venting device is inflated, rupture disk venting of dust explosion moment closes gas cylinder, now blast signal sensor
Blast signal is transmitted to high-speed camera, and starts high-speed camera and is recorded a video；The signal of each sensor collection passes simultaneously
Transport to computer storage, DEWESoft hardware acceptances sensor signal and using high-speed camera gather image handled, it is right
The Evolution of each parameter cloud atlas of coal-gas two phase flow is shown in tunnel.
After 6c) coal-gas two phase flow injection stops, related data is preserved, and continues to be monitored data, it is dense to gas
After degree and dust concentration are reduced to predetermined safety value, related data is stored again, and close all data collecting systems.
7) experiment is terminated
7a) protrude after terminating, the stacking states of coal dust in tunnel are observed by observation window, and photograph to record human body
The relevant position of model 21 and machine mould 22；Observation window is dismantled, collects coal sample in tunnel and Dust-proof bag, gained coal sample is sieved
Divide and arrange.
7b) cleaning is completed in tunnel after coal sample, dismantles the device such as closure plate, sensor, high-speed camera in tunnel, and classification is whole
Replaced after reason, in case next time, experiment used.
In above scheme, coal and gas prominent simulator stand is prior art, and its structure and working principle is not made herein
Repeat.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (8)
1. " people-machine-ring " is damaged simulation experiment method in a kind of coal and gas prominent Catastrophe Process, it is characterised in that including following
Step：
1) tunnel is assembled
1a) by left and right side by side in a manner of two row cross pipes (1) are set, the number of the row cross pipe (1) of the left side one is six
Individual, the number of the row cross pipe (1) of the right one is five, passes through longitudinal side between two adjacent cross pipes (1) in same column
Shape straight tube (2) connects, and the right one arranges the cross pipe (1) of foremost one and arranges the by laterally square straight tube (4) and the left side one
The connection of two cross pipes (1), the right one arrange the 3rd cross pipe (1) by another laterally square straight tube (4) with
The left side one arranges the 4th cross pipe (1) connection, before the left side one arranges the front port connection of the cross pipe (1) of foremost one
Big enlarging adapter (3) after small, observation window laterally is equipped with the square straight tube (2) of square straight tube (4) and longitudinal direction, it is last in two row
The rear port connection dustproof cloth bag of one, face cross pipe (1), the untapped port of each cross pipe (1) are close by baffle plate
Envelope；
1b) connect tunnel and coal and gas prominent simulator stand：In the chamber position of coal and gas prominent simulator stand
Installation rupture disk ring flange is put, reconnects ring flange and rupture disk clamper, and load the quick-fried of testing program predetermined dimension simultaneously
Fragmentation two panels and blast signal sensor, with complete be classified explosion venting device installation, using tracheae by rupture disk clamper with
Methane gas cylinder is connected；By rupture disk clamper by guiding pipe (11) to be connected with the enlarging adapter (3) of tunnel front end；
2) install sensor and " people-machine " model
2a) pressure and temperature sensor：The square straight tube (2) in longitudinal direction and the mode phase that sensor is laterally set on square straight tube (4)
Together, i.e. the both ends of each square straight tube are equipped with axially measured section (A), and the middle part of square straight tube sets side pressure Measure section
(B), it is dense to be provided with three pressure sensors (5,6,7), three temperature sensors (8) and two for the axially measured section (A)
Sensor (9) is spent, wherein, first pressure sensor (5) is on the center line of corresponding square straight tube, second pressure sensor
(6) it is located at the 3rd pressure sensor (7) on the different concentric circles of first pressure sensor (5), and second pressure sensor (6)
It is located at first pressure in the same side of first pressure sensor (5), second pressure sensor (6) with the 3rd pressure sensor (7)
The oblique upper of sensor (5), the 3rd pressure sensor (7) are located at the obliquely downward of first pressure sensor (5), and first, second,
Three pressure sensors are equipped with temperature sensor (8) beside (5,6,7)；Side pressure Measure section (B) presses isosceles provided with three
The side pressure sensor (10) of Triangle-Profile, two of which side pressure sensor (10) are located at the stringcourse of square straight tube both sides side wall
On, the 3rd side pressure sensor (10) is located at the bottom wall of square straight tube, and the side pressure sensor (10) is pressure sensor or temperature
Spend sensor；It is connected after after above-mentioned pressure sensor and temperature sensor installation with high-speed data acquisition instrument；
2b) concentration sensor：The upper and lower part of each square straight tube side wall is respectively arranged with concentration sensor (9), concentration sensor (9)
Live apart with second pressure sensor (6) in the both sides of first pressure sensor (5), leading-out terminal and the high speed of concentration sensor (9)
Data collecting system connects；
2c) flowmeter：Flowmeter (12), connection flow gauge (12) and high-speed data acquisition system are installed on guiding pipe (11)
System；
Setting position 2d) being placed on manikin (21) and machine mould (22) in tunnel；
The tunnel preformed hole of non-install sensor position 2e) is sealed using closure plate or plug；
2f) after sensor installation, data logging software is opened, is checked all whether working properly with sensor；
3) camera and high-speed camera are installed
3a) camera：Camera is installed at the top of each cross pipe (1), camera is located at cross pipe (1)
It is interior, adjust the shooting direction of camera, make its be aligned coal-gas two phase flow come to；
3b) high-speed camera：Blast signal sensor and high-speed camera (13) are connected, using camera mount by high-speed camera
Machine (13) is set up in the side of enlarging adapter (3), makes the window opened up in high-speed camera (13) face enlarging adapter (3),
And connect high-speed camera (13) and visualization host computer；
The power switch for the light bar that camera, high-speed camera and tunnel top both sides are set 3c) is opened, checks high-speed camera
Machine and camera and light bar whether normal work；
3d) by predetermined first, second, third pressure sensor (5,6,7), temperature sensor (8) and side pressure sensor (10)
It is connected with DEWESoft hardware modules, and it is connected with visualization host computer；
4) moulded coal makes and experiment casing seals
4a) 4 formable layers of moulded coal point, i.e., one layer of coal sample is first spread in experiment casing bottom relevant position, while be embedded to and pass in coal sample
Sensor, then it is press-formed；Then the second layer, third layer, the 4th layer of briquette molding are carried out successively；
Test specimen cover plate 4b) is installed and checks sealing effectiveness；
4c) joint test tank sensor device and computer；Connect air inlet pipe and vavuum pump and methane gas cylinder；
5) protrusion breeds
In 5a) the stress loading stage, stress loading and high-speed data acquistion system are opened, three directions of experiment casing are applied predetermined
Horizontal stress；
In 5b) the gas adsorption stage, start vavuum pump first and coal sample is vacuumized, to discharge air plankton, be then shut off true
Empty pump, and open methane gas cylinder and be inflated, adsorbed according to predetermined adsorption equilibrium air pressure；
6) it is prominent to start
6a) after coal body is adsorbed to predetermined state in experiment casing, open data acquisition equipment, camera signals collecting device,
DEWESoft hardware and their corresponding software；
6b) classification explosion venting device is inflated, rupture disk venting of dust explosion moment closes gas cylinder, and now blast signal sensor will be quick-fried
Broken signal is transmitted to high-speed camera, and is started high-speed camera and recorded a video；The signal of each sensor collection simultaneously transmit to
Computer storage, DEWESoft hardware acceptances sensor signal and the image gathered using high-speed camera are handled, to tunnel
The Evolution of middle each parameter cloud atlas of two phase flow is shown；
After 6c) two phase flow injection stops, related data is preserved, and continues to be monitored data, to gas density and dust
After concentration is reduced to predetermined safety value, related data is stored again, and closes all data collecting systems；
7) experiment is terminated
7a) protrude after terminating, the stacking states of coal dust in tunnel are observed by observation window, and photograph to record manikin
(21) and machine mould (22) relevant position；Observation window is dismantled, collects coal sample in tunnel and Dust-proof bag, gained coal sample is sieved
Divide and arrange；
7b) cleaning is completed in tunnel after coal sample, the device such as closure plate, sensor, high-speed camera in dismounting tunnel, after taxonomic revision
Replace, in case next time, experiment used.
2. " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process as claimed in claim 1, it is special
Sign is：Rectangular window is provided with the middle part of the cross pipe (1) roof, cover glass (14) on the rectangular window, institute
The edge for stating glass (14) is compressed by the first press strip (15) of square frame-shaped, and the first press strip (15) passes through screw and cross pipe
(1) it is fixed, in the bottom suspended fixing high-definition camera of glass (15).
3. " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process as claimed in claim 2, it is special
Sign is：Four ports of the cross pipe (1) are provided with square flange.
4. " people-machine-ring " is damaged simulated test side in the coal and gas prominent Catastrophe Process as described in claim 1 or 2 or 3
Method, it is characterised in that：The port at each square straight tube both ends is provided with square flange, and the top of square straight tube is set along its length
Put two watch windows, cover transparent panel (16) on each watch window, the transparent panel (16) by square frame-shaped the second press strip (17)
Compress.
5. " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process as claimed in claim 1, it is special
Sign is：First pressure sensor (5), second pressure sensor (6) and the 3rd pressure sensor (7) are installed in and are correspondingly arranged
Support (18) free end, the temperature sensor (8) beside each pressure sensor is also installed on same support (18), the branch
Frame (18) is stretched into from the side wall of square straight tube, and the mounting seat of support (18) root is mutually fixed with the side wall of corresponding square straight tube.
6. " people-machine-ring " is damaged simulation experiment method in the coal and gas prominent Catastrophe Process as described in claim 1 or 5, its
It is characterised by：The distance between the second pressure sensor (6) and first pressure sensor (5) are more than the 3rd pressure sensor
The distance between (7) with first pressure sensor (5), and the center of second pressure sensor (6) and first pressure sensor (5)
Line is perpendicular to the 3rd pressure sensor (7) and the line of centres of first pressure sensor (5).
7. " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process as claimed in claim 6, it is special
Sign is：The first installing port is opened up in the side wall of square straight tube, concentration sensor (9) is stretched into first installing port, and this is dense
Degree sensor (9) is installed on the first locating piece (19), and first locating piece (19) is close to the outer wall of square straight tube, and leads to
Screw is crossed to fix.
8. " people-machine-ring " is damaged simulation experiment method in coal and gas prominent Catastrophe Process as claimed in claim 6, it is special
Sign is：Corresponded in square straight tube and the second installing port is opened up on the wall of side pressure sensor (10), side pressure sensor (10) stretches into this
In second installing port, the side pressure sensor (10) is installed on the second locating piece (20), the second locating piece (20) with it is square straight
The outer wall of pipe is close to, and is fixed by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492158.9A CN107389859B (en) | 2017-06-26 | 2017-06-26 | People-machine-ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492158.9A CN107389859B (en) | 2017-06-26 | 2017-06-26 | People-machine-ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107389859A true CN107389859A (en) | 2017-11-24 |
| CN107389859B CN107389859B (en) | 2019-06-21 |
Family
ID=60332154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710492158.9A Active CN107389859B (en) | 2017-06-26 | 2017-06-26 | People-machine-ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107389859B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308258A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of multi- scenarios method visualization coal and gas postponing bursting experimental rig |
| CN112051303A (en) * | 2020-09-04 | 2020-12-08 | 新乡医学院 | Experimental method for researching real roadway gas explosion composite damage |
| CN114061453A (en) * | 2021-11-10 | 2022-02-18 | 临沂大学 | Gob-side entry retaining goaf caving gangue accumulation characteristic measuring device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1357571A1 (en) * | 1986-03-04 | 1987-12-07 | Институт Геотехнической Механики Ан Усср | Method of simulating outburst of gas/water/coal mixture in coal excavation |
| CN102095835A (en) * | 2011-01-19 | 2011-06-15 | 河南理工大学 | Device for simulating coal and gas outburst experiment |
| CN203275388U (en) * | 2013-06-14 | 2013-11-06 | 黑龙江科技学院 | Coal and gas outburst test device |
| CN103529188A (en) * | 2013-10-12 | 2014-01-22 | 安徽理工大学 | Coal and gas outburst permeation instability test device |
| CN203858239U (en) * | 2014-06-12 | 2014-10-01 | 中煤科工集团重庆研究院有限公司 | Pipe system for coal and gas outburst simulation experiment |
| CN104458490A (en) * | 2014-12-09 | 2015-03-25 | 山东大学 | True-triaxial coal and gas adsorption-desorption and outburst test device system and test method |
| CN105891440A (en) * | 2016-04-11 | 2016-08-24 | 辽宁工程技术大学 | Coal and gas outburst testing device with supplemental gas source and method |
| 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 |
| CN106526094A (en) * | 2016-12-27 | 2017-03-22 | 西安科技大学 | Coal and gas outburst simulation experiment device and experiment method |
-
2017
- 2017-06-26 CN CN201710492158.9A patent/CN107389859B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1357571A1 (en) * | 1986-03-04 | 1987-12-07 | Институт Геотехнической Механики Ан Усср | Method of simulating outburst of gas/water/coal mixture in coal excavation |
| CN102095835A (en) * | 2011-01-19 | 2011-06-15 | 河南理工大学 | Device for simulating coal and gas outburst experiment |
| CN203275388U (en) * | 2013-06-14 | 2013-11-06 | 黑龙江科技学院 | Coal and gas outburst test device |
| CN103529188A (en) * | 2013-10-12 | 2014-01-22 | 安徽理工大学 | Coal and gas outburst permeation instability test device |
| CN203858239U (en) * | 2014-06-12 | 2014-10-01 | 中煤科工集团重庆研究院有限公司 | Pipe system for coal and gas outburst simulation experiment |
| CN104458490A (en) * | 2014-12-09 | 2015-03-25 | 山东大学 | True-triaxial coal and gas adsorption-desorption and outburst test device system and test method |
| CN105891440A (en) * | 2016-04-11 | 2016-08-24 | 辽宁工程技术大学 | Coal and gas outburst testing device with supplemental gas source and method |
| 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 |
| CN106526094A (en) * | 2016-12-27 | 2017-03-22 | 西安科技大学 | Coal and gas outburst simulation experiment device and experiment method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308258A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of multi- scenarios method visualization coal and gas postponing bursting experimental rig |
| CN112051303A (en) * | 2020-09-04 | 2020-12-08 | 新乡医学院 | Experimental method for researching real roadway gas explosion composite damage |
| CN112051303B (en) * | 2020-09-04 | 2023-11-24 | 新乡医学院 | Experimental method for researching real roadway gas explosion composite injury |
| CN114061453A (en) * | 2021-11-10 | 2022-02-18 | 临沂大学 | Gob-side entry retaining goaf caving gangue accumulation characteristic measuring device and method |
| CN114061453B (en) * | 2021-11-10 | 2024-01-02 | 临沂大学 | Device and method for measuring gangue accumulation characteristics of gob-side entry retaining goaf |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107389859B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107290343B (en) | Visual physical simulation test system for coal and gas outburst dynamic disaster | |
| CN107389678A (en) | Coal and gas prominent power causes calamity visual virtual design test method | |
| US11215542B2 (en) | Rock impact loading-unloading confining pressure test system and usage method therefor | |
| Zhou et al. | Test system for the visualization of dynamic disasters and its application to coal and gas outburst | |
| CN102095835B (en) | Device for simulating coal and gas outburst experiment | |
| CN107389859B (en) | People-machine-ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process | |
| CN104407108B (en) | Integral type coal and non-coal adsorption-desorption and outstanding testing apparatus and test method | |
| CN109632509B (en) | Hypergravity true triaxial rock loading experimental apparatus and method | |
| CN203630127U (en) | Burst coal dust gas two-phase mobilization force measurement and experiment device | |
| CN109555519B (en) | Test system and method for simulating hole wall damage condition during natural gas hydrate exploitation | |
| CN102621232B (en) | Multi-field coupling large-sized simulation test system for coal mine dynamic disaster | |
| CN108226441A (en) | The quantitative simulation pilot system and method for crossdrift tunnelling induction coal and gas prominent can be achieved | |
| WO2021159699A1 (en) | Test apparatus for separating and measuring generated gas, water, and sand during natural gas hydrate mining, and method | |
| CN110308258B (en) | Multi-field coupling visual coal and gas delay outburst test device | |
| CN105223336B (en) | A kind of experimental rig and method simulated Shield-bored tunnels stratum cavity and trigger Stratum Loss | |
| Cao et al. | A novel large-scale three-dimensional apparatus to study mechanisms of coal and gas outburst | |
| CN104502047A (en) | Experimental facility and experimental method for verifying aseismic design of spherical tank | |
| CN102621229B (en) | Large simulation test piece box for multi field coupling coal mine dynamic disaster | |
| CN208999423U (en) | Rainfall and reservoir level coupling landslide physical analog test apparatus | |
| CN107389298B (en) | A kind of catastrophe Coal Under-gas two phase flow migration rule test method | |
| CN107153062B (en) | A kind of detection device and detection method of coal and gas prominent | |
| CN204537615U (en) | Physical simulation experiment device is hidden in a kind of structure control | |
| CN201935906U (en) | Simulator for coal and gas outburst tests | |
| CN106979888A (en) | Study the test apparatus and test method of ore pillar digging process obturation carrying mechanism | |
| CN110308246B (en) | Outburst elimination technology for water injection of outburst coal seam and outburst elimination effect test method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |