CN108533255A - Coal petrography sample aerogenesis under temperature-pressure effect tests system and method - Google Patents
Coal petrography sample aerogenesis under temperature-pressure effect tests system and method Download PDFInfo
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- CN108533255A CN108533255A CN201810264486.8A CN201810264486A CN108533255A CN 108533255 A CN108533255 A CN 108533255A CN 201810264486 A CN201810264486 A CN 201810264486A CN 108533255 A CN108533255 A CN 108533255A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses coal petrography sample temperature and pressure effect under aerogenesis test system comprising sample loading device and gas collecting monitoring device, the sample loading device include three axis aerogenesis mechanism of high temperature and confining pressure load maintainer；Three axis aerogenesis mechanism of the high temperature includes sample component, three axocoel rooms, axial load mechanism and heating structure with the accommodating chamber for holding coal petrography sample；The gas collecting monitoring device includes collection air pump, measurement structure and the gas sampling bag for collecting gas being connected to the accommodating chamber of the sample component, and vacuumize process is carried out to whole system before test；The complicated geological mechanical condition residing for raw coal layer is simulated in laboratory using the test system, as different buried depth press and ground temperature condition, coal petrography sample gas happening law of the coal bed gas in the different conditions stage in such circumstances for studying different rank, for instructing actual production.
Description
Technical field
The present invention relates to underground coal mine coal-mining technique fields, specifically, being related to a kind of coal petrography sample in temperature-pressure effect
Lower aerogenesis tests system and method.
Background technology
Coal bed gas refer to be stored in coal seam using methane as main component, to be adsorbed on based on matrix of coal particle surface, portion
Divide the hydrocarbon gas for being free in coal hole or being dissolved in coal seam water, be the associated minerals resource of coal, belongs to Unconventional gas,
It is cleaning, high-grade energy and the industrial chemicals to emerge in the world in nearly ten or twenty year.Coal bed gas is commonly called as coal mine gas, is a kind of treasured
Expensive clean energy resource resource, calorific value are 2-5 times of general coal, the calorific value of 1 cubic metre of pure coal bed gas be equivalent to 1.13kg gasoline,
1.21kg standard coals, calorific value is suitable with natural gas, can be mixed with natural gas it is defeated mixed, and burn after it is very clean, hardly
Any exhaust gas is generated, is first-class industry, chemical industry, power generation and resident living fuel.
But when coal bed gas is when air concentration reaches 5%-16%, meeting open fire will explode；China's high methane, coal with watt
This projecting mine is more, and the particularly serious gas explosion accident of coal mine happens occasionally, and heavy losses are caused to people's life's property；
Meanwhile unprocessed or recycling coal bed gas is directly discharged in air, also results in serious environmental pollution and the wasting of resources,
It is extremely strong to ecological environment destruction.
Therefore, a kind of coal petrography sample aerogenesis test system and method under temperature-pressure effect is now provided, sample testing knot is passed through
Fruit understands and grasp the gas happening law of different coal, reference and optimization operation, management is provided for practical coal mining, to carry
The coal bed gas methane drainage and utilization project dynamics that increases is risen, strengthens control of coalmine gas and mitigates coal mine gas disaster.
Invention content
For this purpose, the present invention provides a kind of coal petrography sample aerogenesis test system under temperature-pressure effect comprising sample load dress
Set with gas collecting monitoring device, the sample loading device includes three axis aerogenesis mechanism of high temperature and confining pressure load maintainer,
Three axis aerogenesis mechanism of the high temperature includes
Sample component has the accommodating chamber for holding coal petrography sample；The sample component is by exhaust structure by coal petrography sample
The gas generated during the test drains into the gas collecting monitoring device；
Three axocoel rooms, including connect and formed the triaxial chamber babinet and triaxial chamber block of closed triaxial chamber, the closed triaxial chamber
It is inside placed with the sample component, the confining pressure load maintainer is connected with the closed triaxial chamber, and when test, the confining pressure adds
Mounted mechanism pressurizes to the closed triaxial chamber；
Axial load mechanism is mounted on by mounting structure on three axocoel room, and when test, the axial load mechanism is to institute
It states sample component and carries out axial pressure；And
Heating structure heats three axocoel room；
The gas collecting monitoring device include the collection air pump being connected to the accommodating chamber of the sample component, measurement structure with
And collect the gas sampling bag of gas；
Wherein, it before test, removes the gas sampling bag and opens the collection air pump, vacuumize process is carried out to whole system.
The sample component includes two end cylindrical briquettings, hollow tracheae and coal petrography sample；Wherein, the sky
Motive pipe is set as stainless steel tracheae, and two end cylindrical briquettings and the hollow tracheae sealing assembling form described for accommodating
The accommodating chamber of coal petrography sample forms the venthole for connecting the exhaust structure on the end cylindrical briquetting.
The sample component includes two end cylindrical briquettings, shrinkable sleeve and coal petrography sample；Wherein, two ends
Portion's cylindrical briquettes and shrinkable sleeve sealing assembling form the accommodating chamber for accommodating the coal petrography sample, the end circle
The venthole for connecting the exhaust structure is formed on cylindricality briquetting.
The end cylindrical briquetting is tightly connected by auxiliary seal component and the shrinkable sleeve；The auxiliary seal
Component includes that at least two circles being wrapped in outside the end cylindrical briquetting are wrapped in the pyrocondensation from after melting property glue and assembling
Pipe sleeve corresponds at least two circle steel wires from the outer wall position of melting property glue.
The exhaust structure includes two bleeding points being molded on three axocoel room, and the bleeding point is led to described
Stomata corresponds the connecting tube of connection, and the pumping hard tube that two bleeding points are connected to the collection air pump.
Measurement structure is set as between the collection air pump and the gas sampling bag in the gas collecting monitoring device
Electronics soap film flowmeter.
The confining pressure load maintainer includes the oil inlet pipe being connected to the closed triaxial chamber of three axocoel room and flowline, sets
In in the oil pocket of confining pressure load maintainer high-temperature silicon oil and the driving high-temperature silicon oil carry out the closed triaxial chamber-of oil inlet pipe-and go out
The control structure of oil pipe-oil pocket-oil inlet pipe circulated.
It is formed on the triaxial chamber babinet for being connected to the fuel-displaced of the closed triaxial chamber and the confining pressure load maintainer
The confining pressure oil export of pipe is formed for being connected to the closed triaxial chamber and the confining pressure load maintainer on the triaxial chamber case lid
Oil inlet pipe confining pressure oil-in；The triaxial chamber babinet is cylindrical in shape, and the triaxial chamber babinet passes through with the triaxial chamber block
Several fastening bolt/fastening screws are fixedly connected, and the axial load mechanism is mounted on the upper end of the triaxial chamber babinet and survey
Axial pressure is carried out to the sample component from top to bottom when examination.
The heating structure includes several circle fire-bar bands being wrapped in outside three axocoel room, and is set to three axis
On chamber seat and close to the several groups thermocouple temperature sensor of sample component setting.
On the basis of the above, aerogenesis test method that the present invention further provides a kind of coal petrography samples under the effect of temperature-pressure,
Include the following steps：
S1, the coal petrography sample of sampling is placed in the sample component equipped with gas vent；
S2, the three axocoel rooms that sample component is placed in three axis aerogenesis mechanism of high temperature closed triaxial chamber in, and seal assembling three axis
Chamber body and triaxial chamber block；
S3, the closed triaxial chamber of three axocoel rooms is connected to confining pressure load maintainer, by gas collecting monitoring device and the sample
Gas vent connection on component, and vacuumize process is carried out to whole system.
S4, start confining pressure load maintainer to the sample component progress surrounding pressurization in closed triaxial chamber, startup three axis of high temperature
The axial load mechanism of aerogenesis mechanism carries out axial pressure to sample component and starts the heating structure of three axis aerogenesis mechanism of high temperature
Three axocoel rooms are heated；
Coal petrography sample aerogenesis in S5, sample component, starts the collection air pump of gas collecting monitoring device, and the aerogenesis of coal petrography sample exists
By being received by the gas sampling bag of gas collecting monitoring device after the measurement structure of gas collecting monitoring device under gas collection pumping action
Collection.
The above technical solution of the present invention has the following advantages over the prior art：
In the present invention, the sample component in closed triaxial chamber is carried out to be parallel to three axis by the realization of confining pressure load maintainer
The pressurization of both direction in the plane of chamber seat carries out the pressurization on third direction by axial load mechanism, and by adding
Heat structure heats the sample component in closed triaxial chamber, to be simulated in laboratory using the test system
Complicated geological mechanical condition residing for natural coal seam, as different buried depth press with ground temperature condition, study different rank
Coal petrography sample gas happening law of the coal bed gas in the different conditions stage in such circumstances, for instructing actual production；That is, this
Invention understands and grasp the gas happening law of different coal by sample testing result, and reference and excellent is provided for practical mine
Change operation, management, to promoting the coal bed gas methane drainage and utilization project dynamics that increases, strengthening control of coalmine gas and mitigating coal mine gas calamity
Evil.
Description of the drawings
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is the structural schematic diagram that coal petrography sample of the present invention aerogenesis under temperature-pressure effect tests system；
Fig. 2 is the structural schematic diagram of three axis aerogenesis mechanism of high temperature of the present invention；
Fig. 3 is the structural schematic diagram of sample component of the present invention；
Fig. 4 is the structural schematic diagram of confining pressure load maintainer of the present invention；
Fig. 5 is the structural schematic diagram of gas collecting monitoring device of the present invention；
Description of the drawings：1- sample loading devices；2- gas collecting monitoring devices；Three axis aerogenesis mechanism of 3- high temperature；4- confining pressures load
Mechanism；5- axial loads mechanism；6- triaxial chamber babinets；7- sample components；8- confining pressures oil-in；9- confining pressure oil exports；10- is evacuated
Mouthful；11- fire-bar bands；12- coal petrography samples；13- end cylindrical briquettings；14- ventholes；15- is from melting property glue；16- heat-shrink tubes
Set；17- steel wires；18- oil inlet pipes；19- flowlines；20- high-temperature silicon oils；21- control structures；22- collection air pumps；23- is evacuated hard tube；
24- exhaust pipes；25- electronics soap film flowmeters；26- gas sampling bags；27- triaxial chamber blocks.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not used to the limit value present invention.
Embodiment 1
As shown in Figure 1, a kind of coal petrography sample provided in this embodiment aerogenesis under temperature-pressure effect tests system comprising sample
Loading device 1 and gas collecting monitoring device 2, the sample loading device 1 include that three axis aerogenesis mechanism 3 of high temperature and confining pressure load
Mechanism 4,
Three axis aerogenesis mechanism 3 of the high temperature includes
Sample component 7 has the accommodating chamber for holding coal petrography sample 12；The sample component 7 is by exhaust structure by coal petrography
The gas that sample 12 generates during the test drains into the gas collecting monitoring device 2；
Three axocoel rooms, including the triaxial chamber babinet 6 and triaxial chamber block 27 of closed triaxial chamber are connected and are formed, closed three axis
Interior is placed with the sample component 7, and the confining pressure load maintainer 4 is connected with the closed triaxial chamber, described to enclose when test
Pressure load maintainer 4 pressurizes to the closed triaxial chamber；
Axial load mechanism 5 is mounted on by mounting structure on three axocoel room, and when test, the axial load mechanism 5 is right
The sample component 7 carries out axial pressure；And
Heating structure heats three axocoel room；
The gas collecting monitoring device 2 includes the collection air pump 22 being connected to the accommodating chamber of the sample component 7, metering knot
Structure and the gas sampling bag 26 for collecting gas；
Wherein, it before test, removes the gas sampling bag 26 and opens the collection air pump 22, whole system is carried out to vacuumize place
Reason.
In the present embodiment, the sample component 7 in closed triaxial chamber is parallel to by the realization of confining pressure load maintainer 4
The pressurization of both direction in the plane of the triaxial chamber block 27 carries out adding on third direction by axial load mechanism 5
Pressure, and the sample component 7 in closed triaxial chamber is heated by heating structure, to utilize the test system in reality
Test indoor simulation and go out complicated geological mechanical condition residing for natural coal seam, as different buried depth press with ground temperature condition, research is not
With gas happening law of the coal bed gas in the different conditions stage in such circumstances of coal petrography sample 12 of degree of metamorphism, for instructing practical life
Production；That is, the present invention understands and grasp the gas happening law of different coal by sample testing result, actually to adopt
Coal provides reference and optimization operation, management, to promote the coal bed gas methane drainage and utilization project dynamics that increases, reinforcing control of coalmine gas and subtract
Light coal mine Gas Disaster.
Specifically, the sample component 7 includes two end cylindrical briquettings 13, hollow tracheae and coal petrography sample 12；
Wherein, the hollow tracheae is set as stainless steel tracheae, two end cylindrical briquettings 13 and the hollow tracheae sealing assembling shape
At the accommodating chamber for accommodating the coal petrography sample 12, formed on the end cylindrical briquetting 13 for connecting the exhaust
The venthole 14 of structure.
As disposable embodiment, as shown in figure 3, the sample component 7 include two end cylindrical briquettings 13,
Shrinkable sleeve and coal petrography sample 12；Wherein, two end cylindrical briquettings 13 and shrinkable sleeve sealing assembling are formed and are used
It is formed in the accommodating chamber for accommodating the coal petrography sample 12, the end cylindrical briquetting 13 for connecting the exhaust structure
Venthole 14.In the present embodiment, the preferably described venthole 14 is L-type hole, i.e., from 13 centre of end cylindrical briquetting to end
Cylindrical briquettes 13 side in portion's is drilled with 90 ° of venthole 14.
As preferred embodiment, the end cylindrical briquetting 13 passes through auxiliary seal component and the shrinkable sleeve
It is tightly connected；The auxiliary seal component includes that at least two be wrapped in outside the end cylindrical briquetting 13 enclose from melting property glue
15 and assembling after be wrapped in the shrinkable sleeve and correspond at least two circle steel wires from the outer wall position of melting property glue 15
17。
The assembling steps of sample component 7 described in the present embodiment are：
First, it is tied up on the end cylindrical briquetting 13 described in two circles from melting property glue 15；
Secondly, between the coal petrography sample 12 is put in two end cylindrical briquettings 13, the heat-shrink tube is then put on
Set 16, being blown the shrinkable sleeve 16 with hair-dryer tightly makes its end be locked with two end cylindrical briquettings 13；
Again, two circle steel wires 17 are tied up outside the shrinkable sleeve 16 and the overlapping from melting property glue 15, on the one hand anti-
The gas that only the coal petrography sample 12 generates spills into the closed triaxial chamber, another party by the position of the non-venthole 14
Face prevents the high-order silicone oil in the closed triaxial chamber from penetrating into sample component 7.
In the present embodiment, the exhaust structure includes two bleeding points 10 being molded on three axocoel room, will be described
Bleeding point 10 and the venthole 14 correspond the connecting tube being connected to, and by two bleeding points 10 and the collection air pump
The pumping hard tube 23 of 22 connections.
In the present embodiment, as shown in figure 5, measurement structure is set as being located at the collection in the gas collecting monitoring device 2
Electronics soap film flowmeter 25 between air pump 22 and the gas sampling bag 26, the electronics soap film flowmeter 25 pass through exhaust pipe
24 are connected with the collection air pump 22；Wherein, the electronics soap film flowmeter 25 can check system whether aerogenesis and aerogenesis
Rate.
Further, as shown in figure 4, the confining pressure load maintainer 4 includes being connected to the closed triaxial chamber of three axocoel room
Oil inlet pipe 18 and flowline 19, the high-temperature silicon oil 20 in the oil pocket of the confining pressure load maintainer 4 and driving high temperature silicon
Oil 20 carries out the control structure 21 of the closed triaxial chambers of oil inlet pipe 18--flowline 19- oil pockets-oil inlet pipe 18 circulated.At this
In embodiment, the confining pressure load maintainer 4 is used to fill high-temperature silicon oil 20 into the closed triaxial chamber, and applies needed for experiment
Confining pressure value, it can be achieved that manually and automatically control two ways, maximum confining pressure range is 140MPa.
Specifically, as shown in Fig. 2, being formed on the triaxial chamber babinet 6 for being connected to the closed triaxial chamber and described
The confining pressure oil export 9 of the flowline 19 of confining pressure load maintainer 4 is formed for being connected to described closed three on the triaxial chamber case lid
The confining pressure oil-in 8 of the oil inlet pipe 18 of axis room and the confining pressure load maintainer 4；The triaxial chamber babinet 6 is cylindrical in shape, three axis
Chamber body 6 is fixedly connected with the triaxial chamber block 27 by several fastening bolt/fastening screws, the axial load mechanism 5
Axial pressure is carried out to the sample component 7 from top to bottom when mounted on the upper end of the triaxial chamber babinet 6 and test.
On the basis of the above, the heating structure in the present embodiment includes several circles being wrapped in outside three axocoel room
Fire-bar band 11, and on the triaxial chamber block 27 and close to the several groups thermojunction type of the sample component 7 setting
Temperature sensor.In the present embodiment, by several circle fire-bar bands 11 for being wrapped in outside three axocoel room by described three
The high-temperature silicon oil 20 in the closed triaxial chamber is heated in the conduction of axis chamber body 6, then again to examination placed within
Sample component 7 heats；Meanwhile by being arranged in the thermocouple temperature sensor on the triaxial chamber block 27 into trip temperature
Feedback and temperature control.
Embodiment 2
On the basis of above-described embodiment 1, the present embodiment further provides for a kind of coal petrography sample aerogenesis test under temperature-pressure effect
Method comprising following steps：
S1, the coal petrography sample 12 of sampling is placed in the sample component 7 equipped with gas vent；
S2, the three axocoel rooms that sample component 7 is placed in three axis aerogenesis mechanism 3 of high temperature closed triaxial chamber in, and seal assembling three
Axis chamber body 6 and triaxial chamber block 27；
S3, the closed triaxial chamber of three axocoel rooms is connected to confining pressure load maintainer 4, by gas collecting monitoring device 2 and the examination
Gas vent connection on sample component 7, and vacuumize process is carried out to whole system.
S4, start confining pressure load maintainer 4 to the progress surrounding of sample component 7 pressurization in closed triaxial chamber, startup high temperature three
The axial load mechanism 5 of axis aerogenesis mechanism 3 carries out axial pressure to sample component 7 and starts adding for three axis aerogenesis mechanism 3 of high temperature
It heats three axocoel room of heat structure pair；
12 aerogenesis of coal petrography sample in S5, sample component 7 starts the collection air pump 22 of gas collecting monitoring device 2, coal petrography sample 12
Aerogenesis collection air pump 22 act under by the measurement structure of gas collecting monitoring device 2 after by gas collecting monitoring device 2
Gas sampling bag 26 is collected.
In the present embodiment, the complicated geological mechanics residing for raw coal layer is simulated in laboratory using the test system
Condition, as different buried depth press with ground temperature condition, study the coal petrography sample 12 of different rank coal bed gas in such circumstances
In the gas happening law in different conditions stage, for instructing actual production.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. coal petrography sample aerogenesis under temperature-pressure effect tests system comprising sample loading device（1）It monitors and fills with gas collecting
It sets（2）, it is characterised in that：The sample loading device（1）Including three axis aerogenesis mechanism of high temperature（3）With confining pressure load maintainer（4）,
Three axis aerogenesis mechanism of the high temperature（3）Including
Sample component（7）, have for holding coal petrography sample（12）Accommodating chamber；The sample component（7）Pass through exhaust structure
By coal petrography sample（12）The gas generated during the test drains into the gas collecting monitoring device（2）It is interior；
Three axocoel rooms, including connect and formed the triaxial chamber babinet of closed triaxial chamber（6）With triaxial chamber block（27）, described closed
The sample component is placed in triaxial chamber（7）, the confining pressure load maintainer（4）It is connected with the closed triaxial chamber, tests
When, the confining pressure load maintainer（4）It pressurizes to the closed triaxial chamber；
Axial load mechanism（5）, it is mounted on three axocoel room by mounting structure, when test, the axial load mechanism
（5）To the sample component（7）Carry out axial pressure；And
Heating structure heats three axocoel room；
The gas collecting monitoring device（2）Including with the sample component（7）The accommodating chamber connection collection air pump（22）、
Measurement structure and the gas sampling bag for collecting gas（26）；
Wherein, before test, the gas sampling bag is removed（26）And open the collection air pump（22）, whole system take out true
It manages in vacancy；
The confining pressure load maintainer（4）It include the oil inlet pipe being connected to the closed triaxial chamber of three axocoel room（18）And flowline
（19）, be set to confining pressure load maintainer（4）Oil pocket in high-temperature silicon oil（20）And the driving high-temperature silicon oil（20）Into traveling
Oil pipe（18）Closed triaxial chamber-flowline（19）Oil pocket-oil inlet pipe（18）The control structure circulated（21）；
The heating structure includes several circle fire-bar bands being wrapped in outside three axocoel room（11）, and it is set to three axis
Chamber seat（27）The upper and close sample component（7）The several groups thermocouple temperature sensor of setting.
2. coal petrography sample according to claim 1 aerogenesis under temperature-pressure effect tests system, it is characterised in that：The examination
Sample component（7）Including two end cylindrical briquettings（13）, hollow tracheae and coal petrography sample（12）；Wherein, the hollow gas
Pipe is set as stainless steel tracheae, two end cylindrical briquettings（13）It is formed with the hollow tracheae sealing assembling described for accommodating
Coal petrography sample（12）Accommodating chamber, the end cylindrical briquetting（13）On form ventilation for connecting the exhaust structure
Hole（14）.
3. coal petrography sample according to claim 1 aerogenesis under temperature-pressure effect tests system, it is characterised in that：The examination
Sample component（7）Including two end cylindrical briquettings（13）, shrinkable sleeve（16）And coal petrography sample（12）；Wherein, two ends
Portion's cylindrical briquettes（13）With the shrinkable sleeve（16）Sealing assembling is formed for accommodating the coal petrography sample（12）Receiving
Chamber, the end cylindrical briquetting（13）On form venthole for connecting the exhaust structure（14）.
4. coal petrography sample according to claim 3 aerogenesis under temperature-pressure effect tests system, it is characterised in that：The end
Portion's cylindrical briquettes（13）Pass through auxiliary seal component and the shrinkable sleeve（16）It is tightly connected；The auxiliary seal component packet
It includes and is wrapped in the end cylindrical briquetting（13）Outer at least two enclose from melting property glue（15）And it is wrapped in the heat after assembling
Draw set（16）Corresponding to described from melting property glue（15）Outer wall position at least two circle steel wires（17）.
5. coal petrography sample according to claim 3 aerogenesis under temperature-pressure effect tests system, it is characterised in that：The row
Depressed structure includes two bleeding points being molded on three axocoel room（10）, by the bleeding point（10）With the venthole
（14）The connecting tube of connection is corresponded, and by two bleeding points（10）With the collection air pump（22）The pumping of connection is hard
Pipe（23）.
6. coal petrography sample according to claim 5 aerogenesis under temperature-pressure effect tests system, it is characterised in that：The gas
Body acquires monitoring device（2）Middle measurement structure is set as being located at the collection air pump（22）With the gas sampling bag（26）Between electricity
Sub- soap film flowmeter（25）.
7. coal petrography sample according to claim 1 aerogenesis under temperature-pressure effect tests system, it is characterised in that：Described three
Axis chamber body（6）On form for being connected to the closed triaxial chamber and the confining pressure load maintainer（4）Flowline（19）'s
Confining pressure oil export（9）, form for being connected to the closed triaxial chamber and the confining pressure load maintainer on the triaxial chamber case lid
（4）Oil inlet pipe（18）Confining pressure oil-in（8）；The triaxial chamber babinet（6）It is cylindrical in shape, the triaxial chamber babinet（6）With institute
State triaxial chamber block（27）It is fixedly connected by several fastening bolt/fastening screws, the axial load mechanism（5）Mounted on institute
State triaxial chamber babinet（6）Upper end and when test from top to bottom to the sample component（7）Carry out axial pressure.
8. coal petrography sample aerogenesis test method under temperature-pressure effect, it is characterised in that：It includes the following steps：
S1, the coal petrography sample by sampling（12）It is placed in the sample component equipped with gas vent（7）It is interior；
S2, by sample component（7）It is placed in three axis aerogenesis mechanism of high temperature（3）Three axocoel rooms closed triaxial chamber in, and sealing group
Fill triaxial chamber babinet（6）With triaxial chamber block（27）；
S3, closed triaxial chamber and confining pressure load maintainer by three axocoel rooms（4）Connection, by gas collecting monitoring device（2）With institute
State sample component（7）On gas vent connection, and to whole system carry out vacuumize process；
S4, start confining pressure load maintainer（4）To the sample component in closed triaxial chamber（7）It carries out surrounding pressurization, start high temperature three
Axis aerogenesis mechanism（3）Axial load mechanism（5）To sample component（7）It carries out axial pressure and starts three axis aerogenesis machine of high temperature
Structure（3）Three axocoel room of heating structure pair heat；
S5, sample component（7）Interior coal petrography sample（12）Aerogenesis starts gas collecting monitoring device（2）Collection air pump（22）, coal
Rock sample（12）Aerogenesis collection air pump（22）Effect is lower to pass through gas collecting monitoring device（2）Measurement structure after adopted by gas
Monitor set device（2）Gas sampling bag（26）It collects.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110793899A (en) * | 2019-11-14 | 2020-02-14 | 中国矿业大学 | Multi-phase medium seepage test device and test method under microwave excitation |
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