CN108107115A - A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig - Google Patents
A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig Download PDFInfo
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- CN108107115A CN108107115A CN201810088341.7A CN201810088341A CN108107115A CN 108107115 A CN108107115 A CN 108107115A CN 201810088341 A CN201810088341 A CN 201810088341A CN 108107115 A CN108107115 A CN 108107115A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 80
- 239000003245 coal Substances 0.000 title claims abstract description 61
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 31
- 239000000523 sample Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000019491 signal transduction Effects 0.000 claims description 13
- 239000011888 foil Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 4
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000011160 research Methods 0.000 abstract description 2
- 230000002123 temporal effect Effects 0.000 abstract description 2
- 230000010534 mechanism of action Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 206010061688 Barotrauma Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
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Abstract
The present invention provides a kind of high pressure resistant coal petrography absorption damage deformation acoustic-electric combined monitoring experimental rig, is related to coal petrography gas technical field.A kind of high pressure resistant coal petrography absorption damage deformation acoustic-electric combined monitoring experimental rig includes air-charging and air-discharging system, adsorbing cylinder system, DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge monitoring system；The air-charging and air-discharging system connects adsorbing cylinder system, and adsorbing cylinder system connects DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge monitoring system respectively again.High pressure resistant coal petrography absorption damage deformation acoustic-electric combined monitoring experimental rig provided by the invention, real-time deformation under realization coal petrography sample is acted on when high adsorption pressure is long monitors, the temporal and spatial evolution of strain, sound emission and charge signal is recorded simultaneously, reach research gas field, the inner link of deformation field and linkage mechanism of action, the damage control for deep coal, rock mass engineering project and experiment and theoretical foundation are provided.
Description
Technical field
The present invention relates to coal petrography gas technical field more particularly to a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric is multiple
Close monitoring test device.
Background technology
Coal and rock is the porous media that complicated hole, fissured structure coexist.Under Mining in Deep-lying Conditions, because of stress field-watt
This migration field-collective effect of mining stress field, mechanical behavior show more complicated discreteness feature, cause coal petrography
Body easily unstability, so as to induce dynamic disaster.Existing result of study show gas Coal body Instability trigger such as bump, coal
The mechanical behavior complicated and changeable with it is closely related with the generation of Gas Outburst and other secondary disasters, gas adsorption damage influence
Coal and rock mechanical behavior and unstability law study have become field of coal mine safety key scientific problems urgently to be resolved hurrily it
One.
With the increase of China's coal-mine mining depth, gas pressure constantly increases, the dynamic disaster accident frequency that gas is dominated
Numerous generation.In order to study the mechanical behavior of gas coal rock, its Failure Mechanism is disclosed, it is necessary to carry out the research work of coal petrography adsorption gas
Make, obtain the damage deformation rule of gas adsorption process coal body.The generation of some monitoring devices such as sound emission, charge can be certain
The generation prevented accident in degree, but caused data accuracy not high by extraneous factor interference, monitoring effect is undesirable.And coal
After exploitation is transferred to deep, is redistributed by Engineering Disturbance coal petrography body stress, made jointly in high-ground stress, High-geotemperature and hyperosmosis
With experimental provision also needs to meet high voltage bearing condition, therefore, finds a kind of more efficient and accurately prior-warning device is to be badly in need of
It solves the problems, such as, inquire into the coal petrography strain characteristics for considering Adsorption Effect when high pressure gas is long, further investigation coal petrography adsorbed when long
Relation between generation feature, changing rule and the absorption of the physical signals such as journey sound emission-charge damage, inverting is by gas pressure
The mechanical property of coal seam changing rule of influence to disclosing Deep Mine gas dynamical disaster genesis mechanism there is important science to anticipate
Justice and practical value.
The content of the invention
The defects of for the prior art, the present invention provide a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring
Experimental rig monitors sound emission-the variation characteristic of charge signal in coal petrography adsorption process.
A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig, including air-charging and air-discharging system, absorption
Cylinder system, DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge monitoring system；The adsorbing cylinder system include absorption cylinder body and
Multiple high pressure resistant signal transduction devices；The absorption cylinder body includes cylinder barrel, upper cylinder lid and lower cylinder lid, lower cylinder lid peripheral hardware
There is air bleeding valve；Coal petrography sample and charge signal collector in the cylinder barrel are set, foil gauge harmony is pasted on coal petrography sample
Transmitting probe；The air-charging and air-discharging system by pipeline be connected to absorption cylinder body upper cylinder cover, foil gauge, acoustic emission probe and
Charge signal collector respectively by conducting wire and high pressure resistant signal transduction device and DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and
Charge monitoring system is connected.
Preferably, the air-charging and air-discharging system includes gas cylinder, pressure regulator valve and pressure gauge；The gas cylinder passes through resistance to height
Pressure stainless steel tubing and closed transmission screw are connected with adsorbing the upper cylinder lid of cylinder body；The pressure regulator valve and pressure gauge are arranged on resistance to
In high pressure stainless steel tubing.
Preferably, there is prominent plane in the middle part of the cylinder barrel outer surface, plane central is cut with circular hole, and circular is set
Multiple fixing threaded holes, cylinder barrel top and bottom are both provided with sealed groove；The upper cylinder lid and lower cylinder are covered and set respectively
There are inflation through hole and deflation through hole；It is close that high pressure resistant multichannel is fixed on the circular hole of the cylinder barrel outer surface protrusion plane
Seal ring flange.
Preferably, multiple closed transmission holes and multiple fixing threaded holes are provided on the high pressure resistant multichannel sealing flange
An and sealed groove.
Preferably, the high pressure resistant signal transduction device includes high-conductivity copper bar, plain cushion, O-ring and hex nut, and
It is fixed in the closed transmission hole of high pressure resistant multichannel sealing flange.
Preferably, the charge signal collector is micro- electrically susceptible sense nickel cobalt pole piece.
Preferably, the DEFORMATION MONITORING SYSTEM includes bridge box, strain monitoring instrument and strain storage system；The bridge box it is defeated
Enter end to be connected with the high-conductivity copper bar in high pressure resistant signal transduction device by conducting wire, strain signal is transferred out into absorption cylinder body
Outside, the output terminal of bridge box is connected with the input terminal of strain monitoring instrument, and bridge box is transferred to strain monitoring instrument after strain signal is converted,
The output terminal of strain monitoring instrument is connected with straining the input terminal of storage system, and strain signal is transferred to strain storage system carries out
Storage.
Preferably, the acoustic emission monitoring system includes acoustic emission signal amplifier, acoustic emission automonitor and sound emission letter
Number storage system；The input terminal of the acoustic emission signal amplifier is by carrying BNC connector shielding line and high-conductivity copper bar phase
Even；The output terminal of the acoustic emission signal amplifier is connected with the input terminal of acoustic emission automonitor, the output of acoustic emission automonitor
The input terminal again with acoustic emission signal storage system is held to be connected, acoustic emission signal transmission is stored in acoustic emission signal storage system
System.
Preferably, the charge monitoring system includes charge signal amplifier, charge monitoring instrument and charge signal storage system
System；The input terminal of the charge signal amplifier is connected using BNC connector with high-conductivity copper bar；The charge signal amplifier
Output terminal be connected with the input terminal of charge monitoring instrument, the output terminal of charge monitoring instrument and the input terminal of charge signal storage system
It is connected, charge signal is stored.
As shown from the above technical solution, the beneficial effects of the present invention are：A kind of high pressure resistant coal petrography provided by the invention is inhaled
Additional loss wound deformation-acoustic-electric combined monitoring experimental rig, can coal petrography be inhaled more under accurately detecting condition of high voltage under test conditions
Attached gas damages variation characteristic, deformation, sound during long-term evolution damage and failure of the monitoring coal petrography under adsorptive pressure effect
Transmitting, charge signal temporal and spatial evolution, and then strain field can be specified-the inner link of fluid field establishes solid-gas coupling work
With lower deformation-sound emission-charge signal mechanism of Evolution, coal and rock is disclosed by effects of air pressure deformation rule, is coal and rock power
Diaster prevention and control provides theoretical direction and scientific basis.
Description of the drawings
Fig. 1 is a kind of high pressure resistant coal petrography absorption damage deformation provided in an embodiment of the present invention-acoustic-electric combined monitoring experiment dress
The structure diagram put；
Fig. 2 is the structure diagram of high pressure resistant multichannel sealing flange provided in an embodiment of the present invention, wherein, (a) is
Method phase schematic diagram, (b) are tangential schematic diagram；
Fig. 3 is the structure diagram of high pressure resistant signal transduction device provided in an embodiment of the present invention.
Wherein, 1, gas cylinder；2nd, pressure regulator valve；3rd, pressure gauge；4th, cylinder body is adsorbed；5th, coal petrography sample；6th, foil gauge；7th, sound
Transmitting probe；8th, closed transmission screw；9th, air bleeding valve；10th, upper cylinder lid；11st, lower cylinder lid；12nd, charge signal collector；
13rd, high pressure resistant multichannel sealing flange；14th, acoustic emission signal amplifier；15th, acoustic emission automonitor；16th, acoustic emission signal is deposited
Storage system；17th, charge signal amplifier；18th, charge monitoring instrument；19th, charge signal storage system；20th, strain monitoring instrument；21、
Strain storage system；22nd, cylinder barrel；23rd, bridge box；24th, closed transmission hole；25th, fixing threaded hole；26th, sealed groove；27th, height is led
Electrical copper bar；28th, plain cushion；29th, O-ring；30th, hex nut.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig, as shown in Figure 1, including inflation/deflation
System, adsorbing cylinder system, DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge monitoring system；
Adsorbing cylinder system includes absorption cylinder body 4, high pressure resistant multichannel sealing flange 13 and high pressure resistant signal transduction device.
Adsorbing cylinder body 4 includes cylinder barrel 22, upper cylinder lid 10 and lower cylinder lid 11, and the coal petrography of experiment to be monitored is placed in cylinder barrel 22
There is prominent plane at sample 5,22 outer surface of cylinder barrel middle part, and plane central is cut with circular hole, and circular sets multiple fixed spiral shells
Hole, 22 top and bottom of cylinder barrel are both provided with sealed groove, and sealing is realized by placing rubber seal in sealed groove.
Inflation through hole and deflation through hole are respectively equipped on upper cylinder lid 10 and lower cylinder lid 11；Meanwhile upper cylinder lid 10 and lower gas
Outer-hexagonal bolt is also equipped on cylinder cap 11.Shown in high pressure resistant multichannel sealing flange 13 such as Fig. 2 (a) and (b), set thereon
There are multiple closed transmission holes 24 and multiple fixing threaded holes 25 and a sealed groove 26, cylinder is fixed on by fixing threaded hole 25
22 outer surfaces of cylinder are protruded on the circular hole of plane, and realize sealing by placing rubber seal in sealed groove 26.It is multiple close
It closes in transmission hole 24 and is respectively and fixedly provided with high pressure resistant signal transduction device；High pressure resistant signal transduction device is as shown in figure 3, including highly conductive
Property copper bar 27, plain cushion 28, O-ring 29 and hex nut 30, plain cushion 28 and O-ring 29 play the role of obturaging, hex nut 30 will
High pressure resistant signal transduction device is fastened in the closed transmission hole of high pressure resistant multichannel sealing flange.
Air-charging and air-discharging system includes gas cylinder 1, pressure regulator valve 2, pressure gauge 3, drain tap 9 and closed transmission screw 8.High pressure
Gas cylinder 1 is carried out by the outer-hexagonal bolt of high pressure resistant stainless steel tubing and closed transmission screw 8 and the upper cylinder lid 10 of adsorbing cylinder
It connects, simultaneously equipped with pressure regulator valve 2 and pressure gauge 3 in high pressure resistant stainless steel tubing；Drain tap 9 passes through high pressure resistant stainless steel tubing
On the outer-hexagonal bolt for the lower cylinder lid 11 for being connected to adsorbing cylinder with closed transmission screw 8.
DEFORMATION MONITORING SYSTEM includes foil gauge 6, bridge box 23, strain monitoring instrument 20 and strain storage system 21.Foil gauge 6 is viscous
It is attached on the coal petrography sample 5 of experiment to be monitored, then passes through the high conductivity in conducting wire and high pressure resistant multichannel sealing flange 13
One end of copper bar 27 is connected, and the other end of high-conductivity copper bar 27 passes through the input of the bridge box 23 outside conducting wire and cylinder barrel 22 again
End is attached, and it is external that strain signal is transferred out adsorbing cylinder.The input terminal phase of the output terminal of bridge box 23 and strain monitoring instrument 20
Even, bridge box 23 is transferred to strain monitoring instrument 20, output terminal and the strain storage system of strain monitoring instrument 20 after strain signal is converted
The input terminal of system 21 is connected, and strain signal is transferred to strain storage system 21 stores.
Acoustic emission monitoring system includes acoustic emission probe 7, acoustic emission signal amplifier 14,15 harmony of acoustic emission automonitor hair
Penetrate storage system 16.Acoustic emission probe 7 is adhesively fixed using binding agent and the coal petrography sample 5 of experiment to be monitored, and is passed through
Shielding line with BNC connector is connected with one end of the high-conductivity copper bar 27 in high pressure resistant multichannel sealing flange 13, high
The other end of electric conductivity copper bar 27 is by carrying BNC connector shielding line and the acoustic emission signal amplifier 14 outside cylinder barrel 22
Input terminal is connected.The output terminal of acoustic emission signal amplifier 14 is connected with the input terminal of acoustic emission automonitor 15, acoustic emission monitor(ing)
Input terminal of the output terminal of instrument 15 again with acoustic emission signal storage system 16 is connected, and acoustic emission signal transmission is stored in sound emission
Storage system 16.
Charge monitoring system includes charge signal collector 12, charge signal amplifier 17, charge monitoring instrument 18 and charge
Storage system 19.Charge signal collector 12 is micro- electrically susceptible sense nickel cobalt pole piece, by carrying BNC connector in cylinder barrel 22
Hardmask line be connected with one end of the high-conductivity copper bar 27 in high pressure resistant multichannel sealing flange 13, high-conductivity copper
The other end of bar 27 is connected using BNC connector with the input terminal of charge signal amplifier 17.The output of charge signal amplifier 17
End is connected with the input terminal of charge monitoring instrument 18, the output terminal of charge monitoring instrument 18 and the input terminal of charge signal storage system 19
It is connected, charge signal is stored.
Coal petrography sample 5 to be tested takes out bulk by Deep Mine used by the present embodiment, is cut into using cutting machine
Then cylinder coal petrography is cut into the coal petrography sample 5 of high 100mm by Φ 50mm cylinders；
In the present embodiment, high pressure resistant coal petrography absorption damage deformation-the acoustic-electric combined monitoring experimental rig pair of the present invention is used
The test method that coal petrography sample is monitored is：
Test the preparation stage：Foil gauge 6 is pasted onto by stress change principle first and is chosen on ready coal petrography sample, it is to be checked
It tests after foil gauge fixes, conducting wire is connected with foil gauge 6 using welding machine and scolding tin.Then air-charging and air-discharging system and absorption are assembled
Gas is filled with adsorbing cylinder system, check device air-tightness by cylinder system；24 it is small when after observe adsorbing cylinder in air pressure change, such as
Fruit air-tightness well continues preparing experiment, otherwise re-assemblies device.
Finally, the lower cylinder lid 11 of adsorbing cylinder system and high pressure resistant multichannel sealing flange 13 are opened, then deformation is installed
Mounted each instrument is carried out signal debugging by monitoring system, acoustic emission monitoring system and charge monitoring system, and detection signal passes
It is defeated whether sensitive, after each instrument testing is good, the valve of gas cylinder 1 is opened, gas slowly is filled in cylinder and the row of opening
Air valve 9 discharges air in adsorbing cylinder system, closes the valve of gas cylinder 1 and air bleeding valve 9, preparing experiment.
Experimental stage：Each strain, sound emission, charge monitoring equipment are reset and adjust relevant parameter, opens gas cylinder 1
Valve, while open strain, sound emission, charge monitoring equipment and the variation for gathering each parameter, air pressure in cylinder system to be adsorbed
Close the valve of gas cylinder 1 when reaching predetermined value, absorption when coal petrography sample carries out long, when absorption 24 is small after stop acquisition, storage
Deposit result of the test.
Test post-processing stages：After each parameter storage, gas pressure in adsorbing cylinder system is first shed, then opens and inhales
Test coal petrography is taken out in attached cylinder system lower cylinder lid 11, the connection of dismounting coal petrography sample 5 and high pressure resistant multichannel sealing flange 13
Sample 5 is sealed coal petrography sample 5 and takes pictures in case follow-up test uses.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
Either which part or all technical characteristic are equal with modifying to the technical solution recorded in previous embodiment
It replaces；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the model that the claims in the present invention are limited
It encloses.
Claims (9)
1. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig, including air-charging and air-discharging system, adsorbing cylinder system
System, DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge monitoring system, it is characterised in that：The adsorbing cylinder system includes inhaling
Attached cylinder body (4) and multiple high pressure resistant signal transduction devices；The absorption cylinder body (4) includes cylinder barrel (22), upper cylinder lid (10)
With lower cylinder lid (11), lower cylinder lid (11) is externally provided with air bleeding valve (9)；Set in the cylinder barrel (22) coal petrography sample (5) and
Charge signal collector (12) is pasted with foil gauge (6) and acoustic emission probe (7) on coal petrography sample (5)；The air-charging and air-discharging system
It is connected to by pipeline on the upper cylinder lid (10) of absorption cylinder body (4), foil gauge (6), acoustic emission probe (7) and charge signal are received
Storage (12) is supervised respectively by conducting wire and high pressure resistant signal transduction device with DEFORMATION MONITORING SYSTEM, acoustic emission monitoring system and charge
Examining system is connected.
2. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The air-charging and air-discharging system includes gas cylinder (1), pressure regulator valve (2) and pressure gauge (3)；The gas cylinder (1) passes through
High pressure resistant stainless steel tubing and closed transmission screw (8) are connected with the upper cylinder lid (10) of absorption cylinder body (4)；The pressure regulator valve
(2) it is arranged on pressure gauge (3) in high pressure resistant stainless steel tubing.
3. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：There is prominent plane in the middle part of cylinder barrel (22) outer surface, plane central is cut with circular hole, and circular sets multiple
Fixing threaded hole, cylinder barrel (22) top and bottom are both provided with sealed groove；The upper cylinder lid (10) and lower cylinder lid (11)
On be respectively equipped with inflation through hole and deflation through hole；It is fixed on the circular hole of cylinder barrel (22) the outer surface protrusion plane resistance to
High pressure multichannel sealing flange (13).
4. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 3, special
Sign is：Multiple closed transmission holes (24) and multiple fixing threaded holes are provided on the high pressure resistant multichannel sealing flange (13)
(25) and a sealed groove (26).
5. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The high pressure resistant signal transduction device includes high-conductivity copper bar (27), plain cushion (28), O-ring (29) and hexagonal spiral shell
Female (30), and be fixed in the closed transmission hole (24) of high pressure resistant multichannel sealing flange (13).
6. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The charge signal collector (12) is micro- electrically susceptible sense nickel cobalt pole piece.
7. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The DEFORMATION MONITORING SYSTEM includes bridge box (23), strain monitoring instrument (20) and strain storage system (21)；The bridge box
(23) input terminal is connected by conducting wire with the high-conductivity copper bar (27) in high pressure resistant signal transduction device, and strain signal is passed
Export adsorbing cylinder is external, and the output terminal of bridge box (23) is connected with the input terminal of strain monitoring instrument (20), and bridge box (23), which will strain, to be believed
Strain monitoring instrument (20) is transferred to after number conversion, the output terminal of strain monitoring instrument (20) and the input terminal of strain storage system (21)
It is connected, strain signal is transferred to strain storage system (21) stores.
8. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The acoustic emission monitoring system includes acoustic emission signal amplifier (14), acoustic emission automonitor (15) and sound emission letter
Number storage system (16)；The input terminal of the acoustic emission signal amplifier (14) by carry BNC connector shielding line with it is highly conductive
Property copper bar (27) be connected；The input terminal phase of the output terminal and acoustic emission automonitor (15) of the acoustic emission signal amplifier (14)
Even, input terminal of the output terminal of acoustic emission automonitor (15) again with acoustic emission signal storage system (16) is connected, and sound emission is believed
Number transmission is stored in acoustic emission signal storage system (16).
9. a kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig according to claim 1, special
Sign is：The charge monitoring system includes charge signal amplifier (17), charge monitoring instrument (18) and charge signal storage system
It unites (19)；The input terminal of the charge signal amplifier (17) is connected using BNC connector with high-conductivity copper bar (27)；The electricity
The output terminal of lotus signal amplifier (17) is connected with the input terminal of charge monitoring instrument (18), the output terminal of charge monitoring instrument (18) with
The input terminal of charge signal storage system (19) is connected, and charge signal is stored.
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| CN201810088341.7A CN108107115A (en) | 2018-01-30 | 2018-01-30 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490482A (en) * | 2018-12-05 | 2019-03-19 | 重庆大学 | Device and method for simulating composite dynamic disaster in coal mine deep mining |
| CN115127919A (en) * | 2022-08-25 | 2022-09-30 | 北京科技大学 | Synchronous test experimental device for multiple physical quantities of coal rock solid-gas coupling |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740717U (en) * | 2010-08-18 | 2011-02-09 | 河南理工大学 | Desorbing character test tank for water injection coal sample under pressure condition |
| CN102928457A (en) * | 2012-10-15 | 2013-02-13 | 中国石油化工股份有限公司 | Experimental facility for testing autoignition temperature of gas in high-pressure oxygen-enriched environment |
| CN104198679A (en) * | 2014-09-17 | 2014-12-10 | 辽宁工程技术大学 | Full-waveform synchronous integrated monitoring system and method for deformation and fracture process of coal rock |
| CN105973712A (en) * | 2015-12-21 | 2016-09-28 | 河南理工大学 | Acoustic emission testing device used in gassy coal rock fracturing process |
| CN106197943A (en) * | 2016-06-29 | 2016-12-07 | 北京理工大学 | Vaporization based on pressure and temperature control bubble assay device |
| CN106442736A (en) * | 2016-12-06 | 2017-02-22 | 河南理工大学 | Test apparatus, test system and test method for measuring impact orientation indexes and acoustics features of gas-containing coal by use of uniaxial compression |
| US20170122822A1 (en) * | 2014-08-04 | 2017-05-04 | China University Of Mining And Technology | Multipoint Coal and Rock Mass Stress Real-Time Monitoring Device and Method |
| CN106872334A (en) * | 2017-03-09 | 2017-06-20 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water |
| CN207937401U (en) * | 2018-01-30 | 2018-10-02 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
-
2018
- 2018-01-30 CN CN201810088341.7A patent/CN108107115A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740717U (en) * | 2010-08-18 | 2011-02-09 | 河南理工大学 | Desorbing character test tank for water injection coal sample under pressure condition |
| CN102928457A (en) * | 2012-10-15 | 2013-02-13 | 中国石油化工股份有限公司 | Experimental facility for testing autoignition temperature of gas in high-pressure oxygen-enriched environment |
| US20170122822A1 (en) * | 2014-08-04 | 2017-05-04 | China University Of Mining And Technology | Multipoint Coal and Rock Mass Stress Real-Time Monitoring Device and Method |
| CN104198679A (en) * | 2014-09-17 | 2014-12-10 | 辽宁工程技术大学 | Full-waveform synchronous integrated monitoring system and method for deformation and fracture process of coal rock |
| CN105973712A (en) * | 2015-12-21 | 2016-09-28 | 河南理工大学 | Acoustic emission testing device used in gassy coal rock fracturing process |
| CN106197943A (en) * | 2016-06-29 | 2016-12-07 | 北京理工大学 | Vaporization based on pressure and temperature control bubble assay device |
| CN106442736A (en) * | 2016-12-06 | 2017-02-22 | 河南理工大学 | Test apparatus, test system and test method for measuring impact orientation indexes and acoustics features of gas-containing coal by use of uniaxial compression |
| CN106872334A (en) * | 2017-03-09 | 2017-06-20 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water |
| CN207937401U (en) * | 2018-01-30 | 2018-10-02 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
Non-Patent Citations (7)
| Title |
|---|
| 刘京红 等: "煤岩单轴压缩破坏过程声发射试验研究", 河北农业大学学报, vol. 35, no. 5, pages 105 - 108 * |
| 殷山;李忠辉;钮月;邱黎明;孙英豪;程富起;魏洋;: "煤岩受载损伤演化电位特征实验研究", 煤炭学报, no. 1 * |
| 潘一山;罗浩;李忠华;赵扬锋;肖晓春;: "含瓦斯煤岩围压卸荷瓦斯渗流及电荷感应试验研究", 岩石力学与工程学报, no. 04 * |
| 秦虎;黄滚;蒋长宝;李文璞;: "不同瓦斯压力下煤岩声发射特征试验研究", 岩石力学与工程学报, no. 2 * |
| 肖晓春;朱洪伟;潘一山;徐军;罗浩;吕祥锋;: "瓦斯煤岩变形破裂过程声发射预警信号变化规律研究", 中国安全科学学报, no. 06 * |
| 钮月 等: "含瓦斯煤受载损伤演化声发射特性实验研究", 工矿自动化, vol. 42, no. 6, pages 37 - 41 * |
| 钮月 等: "煤系岩样单轴压缩表面电位实验研究", 煤矿安全, vol. 46, no. 5, pages 28 - 31 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490482A (en) * | 2018-12-05 | 2019-03-19 | 重庆大学 | Device and method for simulating composite dynamic disaster in coal mine deep mining |
| CN109490482B (en) * | 2018-12-05 | 2019-08-06 | 重庆大学 | Device and method for simulating composite dynamic disaster in coal mine deep mining |
| CN115127919A (en) * | 2022-08-25 | 2022-09-30 | 北京科技大学 | Synchronous test experimental device for multiple physical quantities of coal rock solid-gas coupling |
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