CN108593457A - A kind of coal petrography high temperature and pressure deformation testing device and test method - Google Patents

A kind of coal petrography high temperature and pressure deformation testing device and test method Download PDF

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Publication number
CN108593457A
CN108593457A CN201810539243.0A CN201810539243A CN108593457A CN 108593457 A CN108593457 A CN 108593457A CN 201810539243 A CN201810539243 A CN 201810539243A CN 108593457 A CN108593457 A CN 108593457A
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China
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pressure
confining pressure
coal petrography
centre bore
graphite
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CN108593457B (en
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刘杰刚
姜波
刘和武
李明
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18Performing tests at high or low temperatures

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of coal petrography high temperature and pressure deformation testing device and test methods,Coal petrography sample is set in graphite-pipe group,Descend both ends that axis pressure loading unit and lower axle pressure loading unit is respectively set to generate axis pressure to coal petrography sample on it,It is arranged with the first protective case successively from the inside to the outside around graphite-pipe group,Second protective case and water cold sleeve,And it is from top to bottom arranged with confining pressure oil pocket successively on upper axis pressure unit,Confining pressure piston and confining pressure pressure head,By injecting hydraulic oil into confining pressure oil pocket,So that hydraulic oil is pushed confining pressure, piston moves downward,And the confining pressure pressure head positioned at confining pressure piston is driven to move downward,Pyrophyllite sleeve is compressed by confining pressure pressure head,Make pyrophyllite sleeve compressive deformation to lateral transport pressure,Confining pressure is generated to coal petrography sample,Axis may be implemented by the experimental rig and press load synchronous with confining pressure,It can ensure the integrality of coal petrography sample structure when sampling,Geological environment can accurately be simulated,It is reasonable for structure,It is easy to disassemble,Safety coefficient is high.

Description

A kind of coal petrography high temperature and pressure deformation testing device and test method
Technical field
The present invention relates to coal rock deformation testing equipment field more particularly to a kind of coal petrography high temperature and pressure deformation testing device with Test method.
Background technology
With the utilization of continually developing of superficial part coal and petroleum resources, preservation amount gradually tends to atrophy, and deep becomes me The following advantageous target prospecting area of state.The powerful support deep energy is capable of in the research of deep coal and rock physics and chemical structure characteristic Exploration and development.China is located in the intersection of the Eurasian, Pacific Ocean and Indian, and total structure complexity is higher than the U.S., Australia The western countries such as big Leah.It is notable that more phase tectonic movement superimposed reformation effects make the physical property of coal and rock occur with chemical property Divide different.Severe deformation constructs coal petrography and coal in progress of coal mining (rock) and the generation of Gas Outburst disaster are closely bound up, is to restrict The bottleneck of the healthy and safe development of China coal industry;The non-of unconventionaloil pool reservoir has been significantly greatly increased in the strong deformation of coal petrography simultaneously Homogenieity increases exploitation and utilizes difficulty.Therefore the coal and rock deformation behaviour under the conditions of different geology in situ is simulated to differently The exploration and development of coal and petroleum resources under matter occurrence condition also has important practical significance with utilization.
In the prior art, the Chinese invention patent of Publication No. CN103884604 discloses a kind of multifunctional high-temperature high pressure Three axis coal petrography experimental rigs and method, the first apparatus structure are unreasonable, take out coal petrography experiment in provision for disengagement after the test It is easy to be destroyed during sample, complete sample structure can not be obtained, be unfavorable for analyzing the sample after experiment And research;And the load mode of the device is single, it is difficult to realize the load synchronous with confining pressure of axis pressure, geological environment is simulated Accuracy it is relatively low;Furthermore the equipment safety coefficient is not high.
Invention content
In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a kind of changes of coal petrography high temperature and pressure Shape experimental rig, the experimental rig may be implemented that axis pressure is synchronous with confining pressure to be loaded, and reasonable for structure, when sampling can ensure coal petrography The integrality of sample structure, can accurate simulation geological environment, easy to disassemble, safety coefficient is high.
To achieve the goals above, the present invention provides a kind of coal petrography high temperature and pressure deformation testing device, the experimental provision It is movably disposed on track, including:Flat bogie, the flat bogie is movably arranged on track, and which is provided with First centre bore of lower perforation;Shell, the enclosure interior limit accommodating chamber, and its lower end and the flat bogie it Between be connected;Confining pressure end cap, the confining pressure end cap are fixed on the accommodating chamber upper end, which is provided with second up and down Centre bore and fuel feed hole;Confining pressure piston, the confining pressure piston include bar portion compatible with second centre bore and a bodily form The piston portion of bar portion lower end described in Cheng Yu, the confining pressure piston are equipped with third centre bore up and down;Confining pressure pressure head, it is described Confining pressure pressure head is fixed on the lower end of the piston portion, which is provided with the 4th centre bore up and down, in the 4th centre bore, third Heart hole, the second centre bore and the coaxial arrangement of the first centre bore;Graphite tube assembly, the graphite tube assembly include:Sample casing, One graphite-pipe, the second graphite-pipe and pyrophyllite sleeve, the sample casing coaxially be set to first centre bore upper end, and with institute Flat bogie is stated to be fixedly connected;First graphite-pipe is arranged along the inner wall of the sample casing, the second graphite pipe sleeve Cavity is formed inside first graphite-pipe and between first graphite-pipe, the confining pressure pressure head is suitable for and the sky Chamber coordinates;The pyrophyllite sleeve filling is in the cavity;Lower axle pressure loading unit, the lower axle pressure loading unit include:Bottom Seat and down-pressed pole, the pedestal are connected with the flat bogie, and the down-pressed pole is matched with first centre bore, and one End is connected with the pedestal, and the other end is matched with second graphite-pipe, and coal petrography sample is placed in the upper of the down-pressed pole End is coaxially disposed with the down-pressed pole and is additionally provided with confining pressure cushion block positioned at second graphite-pipe lower end, the confining pressure cushion block and Dead ring is equipped between the sample casing;It is additionally provided with mica sheet between the pyrophyllite sleeve and the confining pressure cushion block, described It is additionally provided with insulation sleeve between one centre bore and the down-pressed pole;Water cold sleeve, the first protective case and the second protective case are from outside to inside It is sequentially sleeved between the shell and the sample casing, the upper-end inner diameter of the first protective case inner wall is more than in its lower end Diameter, the outer wall of second protective case are matched with first protective case;The outer wall of the water cold sleeve is equipped with water-flowing trough;On Axis pressure loading unit, the upper axis pressure unit include:Seaming chuck and upperpush rod, the seaming chuck match with the third centre bore It closes;The upperpush rod is matched with the 4th centre bore, and one end is connected to the lower end of the seaming chuck, the other end with Second graphite-pipe matches to merge to offset only with the coal petrography sample;Collection tube group, collection tube group include the first collection tube and Second collection tube, the first collection tube sequentially pass through the seaming chuck and the upperpush rod, and one end is connected to the coal petrography sample Upper end, the other end is the first acquisition port on the seaming chuck;Second collection tube sequentially passes through the pedestal and institute Down-pressed pole is stated, one end is connected to the lower end of coal petrography sample, and the other end is the second acquisition port on pedestal;And electrode Board group, the electrode plate groups include the electric pole plate being connected with the seaming chuck and the lower electrode plate that is connected with the support base, The anode of power supply is sequentially communicated seaming chuck, upperpush rod, confining pressure pressure head to the upper end of graphite-pipe group by electric pole plate;Power supply is born Pole is sequentially communicated pedestal, down-pressed pole, confining pressure cushion block to the lower end of graphite-pipe group by lower electrode plate, with to the coal petrography sample into Row heating.
In the technical scheme, before the test, first graphite tube assembly is mounted on flat bogie, coal petrography sample is placed in In second graphite-pipe, and its lower end support only on down-pressed pole, between the shell and the sample casing, and from outside to inside according to It is secondary to be arranged water cold sleeve, the first protective case and the second protective case;Confining pressure piston is arranged into the second centre bore, confining pressure pressure head upper end It is connected to the lower end of confining pressure piston;Then by after combination confining pressure end cap, confining pressure piston, confining pressure pressure head by the shell receiving The upper open ports of chamber enter accommodating chamber, and the lower end of the confining pressure pressure head is made to support only on the pyrophyllite sleeve;Finally make phase Seaming chuck and upperpush rod even sequentially passes through third centre bore and the 4th centre bore, supports only in the upper end of coal petrography sample;When experiment, It can upwards be jacked by the hydraulic elevator platform positioned at pedestal lower end, the forcing press positioned at seaming chuck upper end is pressed downward seaming chuck reality Now to the axial compressive force of coal petrography sample;It can be by injecting hydraulic oil by oil inlet, hydraulic oil pushes confining pressure piston along the Two centre bores move downward, and the confining pressure pressure head positioned at confining pressure piston is driven to move downward, and compress pyrophyllite by confining pressure pressure head Set, makes pyrophyllite sleeve compressive deformation to lateral transport pressure, and confining pressure is generated to coal petrography sample;By electrode plate groups to coal petrography sample It is heated to realize hot environment;After the completion of experiment, shell and flat bogie are dismantled, the device on flat bogie top is whole Body lift by crane, i.e., by shell, confining pressure end cap, confining pressure piston, confining pressure pressure head, water cold sleeve, the first protective case, the second protective case and Seaming chuck and upperpush rod lift by crane together, then utilize mold by the first graphite-pipe, pyrophyllite sleeve, the second stone of sample inside pipe casing Mo Guan, coal petrography sample and corundum pad take out, and are taken out coal petrography sample using incision tool.The experimental rig may be implemented axis pressure with The synchronous load of confining pressure, when sampling, will not destroy the structure of coal petrography sample, can accurate simulation geological environment, safety coefficient It is high.
In addition, coal petrography high temperature and pressure deformation testing device according to the present invention and method, can also have following technology special Sign:
Further, the experimental rig further includes guide rod, by described between the flat bogie and the shell Guide rod connects, and two symmetrically arranged first positioning holes are at least configured on the flat bogie, and the shell is equipped with and institute The corresponding second location hole of first positioning hole is stated, the guide rod sequentially passes through the second location hole and first positioning hole.
Further, the flat bogie includes:The diameter of axle, first centre bore are set on the diameter of axle;Flange, it is described Flange is extended outwardly by the periphery wall of the diameter of axle, and the multiple first positioning hole is set on the flange.
Further, the shell prolongs plate equipped with interior, and the interior plate that prolongs deviates from the shell along the inner wall of the shell Body simultaneously extends to the center position of shell to form the 5th centre bore, and the 5th centre bore is matched with the diameter of axle, and institute It states water cold sleeve, first protective case and supports and only prolong on plate inside.
Preferably, it is adjustably connected by adjusting bolt between the pedestal and the flat bogie.
Further, the upper end of the confining pressure end cap is fixed with hangers.
Preferably, the sink in the shape of a spiral, the lower end of the water cold sleeve is wound to by the upper end of the water cold sleeve.
Preferably, also it is arranged with sealing ring on the periphery wall of the piston portion, the water cold sleeve.
It is another object of the present invention to provide a kind of coal petrography high temperature and pressure deformation test method, this method can obtain Complete coal petrography sample, it is easy to operate, it is more safe and reliable.
To achieve the goals above, a kind of coal petrography high temperature and pressure deformation test method of the invention, the method includes such as Lower step:
S1:Fill sample:First high-temperature and high-presure resistent lubrication is sprayed on the inner wall of the first graphite-pipe and the outer wall of the second graphite-pipe Agent is formed by cavity between the first graphite-pipe and the second graphite-pipe and is arranged mold, and paraffin set is then inserted in mold, In order to more really simulate geological conditions, pyrophyllite powder is subjected to segmentation and is pressed into multiple pyrophyllite sleeves;In down-pressed pole Corundum pad is set on upper surface, and coal petrography sample is placed on corundum pad.
S2:Installation:Between the shell and the sample casing, and be arranged successively from outside to inside water cold sleeve, One protective case and the second protective case;Confining pressure piston is arranged into the second centre bore, confining pressure pressure head upper end is connected to confining pressure piston Lower end, and the second centre bore, third centre bore and the coaxial arrangement of the 4th centre bore;Then by the confining pressure end cap after combination, confining pressure Piston, confining pressure pressure head enter accommodating chamber by the upper open ports of the accommodating chamber of the shell, make the lower end of the confining pressure pressure head To only on the pyrophyllite sleeve, and being connected by fixing piece between confining pressure end cap and the shell;Then by upperpush rod and upper Pressure head is placed in third centre bore and the 4th centre bore successively.
S3:Pressurization and heating:It is respectively arranged with forcing press in the lower end of the upper end of seaming chuck and pedestal, carries out axial pressure When, seaming chuck moves downward in third centre bore, and seaming chuck is pressed downward upperpush rod and is moved down in the 4th centre bore at this time, To which upperpush rod compresses downwards coal petrography sample;Pedestal moves upwards simultaneously, drives the down-pressed pole being located in the first centre bore upward Movement, compresses the lower face of coal petrography sample;When carrying out confining pressure, hydraulic oil is injected by oil inlet, hydraulic oil promotion is enclosed Pressure piston is moved downward along the second centre bore, drives the confining pressure pressure head positioned at confining pressure piston to move downward, by confining pressure pressure Head compression pyrophyllite sleeve, makes pyrophyllite sleeve compressive deformation to lateral transport pressure, and confining pressure is generated to coal petrography sample;Open electrode plate Group heats coal petrography sample.
S4:Sampling:Shell and flat bogie are dismantled, by the device integral lifting on flat bogie top, i.e., by shell, enclose Pressure side lid, confining pressure piston, confining pressure pressure head, water cold sleeve, the first protective case, the second protective case and seaming chuck and upperpush rod are together Lifting, then utilize mold by the first graphite-pipe of sample inside pipe casing, pyrophyllite sleeve, the second graphite-pipe, coal petrography sample and just Jade mattress is taken out, and is taken out coal petrography sample using incision tool.
Description of the drawings
Fig. 1 is the structural schematic diagram of coal petrography high temperature and pressure deformation testing device;
Fig. 2 is the partial enlarged view at I in Fig. 1;
Fig. 3 is the partial enlarged view at Q in Fig. 1;
Fig. 4 is the mold structure diagram for taking coal petrography sample.
In figure:100. experimental rig;1A. flat bogies;1A1. the diameter of axle;1A2. flange;1A11. the first centre bore;1AA. Idler wheel;2A. shells;Prolong plate in 2A1.;The 5th centre bores of 2AA.;3A. confining pressure end caps;The second centre bores of 3A1.;3A2. fuel feed hole; 4A. confining pressure pistons;4A1. bar portion;4A2. piston portion;4AA. third centre bores;5A. confining pressure pressure heads;The 4th centre bores of 5A1.;6A. Graphite tube assembly;6A1. sample casings;The first graphite-pipes of 6A2.;The second graphite-pipes of 6A3.;6A4. pyrophyllite sleeve;6AA. cavitys; 7A. lower axles press loading unit;7A1. pedestal;7A11. adjusting bolt;7A2. down-pressed pole;7A3. confining pressure cushion blocks;8A. coal petrography samples; 9A. corundum pads;10A. dead rings;11A. mica sheets;12A. water cold sleeves;12A1. sinks;The first protective cases of 13A.;14A. Two protective cases;The upper axis of 15A. presses loading unit;15A1. seaming chucks;15A2. upperpush rods;16A. electrode plate groups;16A1. top electrodes Plate;16A2. lower electrode plate;17A. guide rods;18A. hangers;19A. sealing rings;20A. insulation sleeves;21A. thermocouples;AA. it acquires Pipe group;AA1. the first collection tube;AA11. the first acquisition port;AA2. the second collection tube;AA21. the second acquisition port;AAC. central shaft Line;300. mold;The first molds of 1C.;1C1. chamber;The second molds of 2C.;2C1. spring;2C2. pedestal;2C3. through hole.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
A kind of coal petrography high temperature and pressure deformation testing device according to the present invention, as shown in FIG. 1 to 3, including:Flat bogie 1A, shell 2A, confining pressure end cap 3A, confining pressure piston 4A, confining pressure pressure head 5A, graphite tube assembly 6A, lower axle pressure loading unit 7A, pedestal 7A1, down-pressed pole 7A2, confining pressure cushion block 7A3, water cold sleeve 12A, the first protective case 13A, the second protective case 14A, the pressure load of upper axis Unit 15A, collection tube group AA and electrode plate groups 16A.
Flat bogie 1A, the flat bogie 1A are movably arranged on track, and which is provided with up and down first Centre bore 1A11, specifically, one side flat bogie 1A play the role of support to experimental rig 100, and on the other hand its is removable It is arranged dynamicly in orbit, for example, idler wheel 1AA is arranged in the both sides of flat bogie 1A, idler wheel 1AA is suitable for matching with track, It in this way can be with experimental rig 100 easy to remove.
Accommodating chamber, and phase between its lower end and the flat bogie 1A are limited inside shell 2A, the shell 2A Connection, specifically, the upper end of shell 2A are to open wide mouth structure, can facilitate in this way other connecting components pouring into shell 2A It is interior, the lower end of shell 2A is connected with flat bogie 1A, the integral frame of experimental rig 100 can be formed in this way.
Confining pressure end cap 3A, the confining pressure end cap 3A are fixed on the accommodating chamber upper end, which is provided with up and down Second centre bore 3A1 and fuel feed hole 3A2, that is to say, that confining pressure end cap 3A is connected with the open shell 2A in upper end with by its envelope Lid is arranged the second centre bore 3A1 in the center of confining pressure end cap 3A, can connect other connecting components;Deviateing in second The position of heart hole 3A1 is provided with fuel feed hole 3A2, so that hydraulic oil is by fuel feed hole 3A2 injection accommodating chambers.
Confining pressure piston 4A, the confining pressure piston 4A include bar portion 4A1 compatible with the second centre bore 3A1 and one The piston portion 4A2, the confining pressure piston 4A for being formed in the lower ends the bar portion 4A1 are equipped with third centre bore 4AA up and down, Specifically, confining pressure oil pocket being formed between piston portion 4A2 and confining pressure end cap 3A can be noted when pistons work by fuel feed hole 3A2 Enter hydraulic oil, confining pressure piston 4A is moved down.
Confining pressure pressure head 5A, the confining pressure pressure head 5A be fixed on the lower end of the piston portion 4A2, which is provided with and penetrates through downwards 4th centre bore 5A1, the 4th centre bore 5A1, the third centre bore 4AA, the second centre bore 3A1 and described first Centre bore 1A11 is coaxially disposed, i.e. the 4th centre bore 5A1, the third centre bore 4AA, the second centre bore 3A1 and institute The first centre bore 1A11 is stated to be coaxially disposed with central axis AAC.It specifically, can be between confining pressure pressure head 5A and piston portion 4A2 It is bolted connection, this connection type is safe and reliable, and is easily installed and dismantles;And by the first centre bore 1A11, Two centre bore 3A1, third centre bore 4AA and the 4th centre bore 5A1 coaxial arrangements can ensure the accurate of experimental provision installation Degree.
Graphite tube assembly 6A, the graphite tube assembly 6A include:Sample casing 6A1, the first graphite-pipe 6A2, the sample Casing 6A1 is same to be located in the upper end of the first centre bore 1A11, and is fixedly connected with the flat bogie 1A, can be by tight Firmware is fixedly connected, for example, being bolted;The first graphite-pipe 6A2 is arranged along the inner wall of the sample casing 6A1, institute The second graphite-pipe 6A3 is stated to be sheathed on inside the first graphite-pipe 6A2 and form cavity between the first graphite-pipe 6A2 6AA, the confining pressure pressure head 5A are suitable for coordinating with the cavity 6AA;It is filled in institute with pyrophyllite sleeve 6A4, the pyrophyllite sleeve 6A4 It states in cavity 6AA, in other words, graphite tube assembly 6A links together with flat bogie 1A, as shell 2A and flat bogie 1A When separation, graphite tube assembly 6A will not leave flat bogie 1A with the rise of shell 2A.
Lower axle pressure loading unit 7A, the lower axle pressure loading unit 7A include:Pedestal 7A1, the pedestal 7A1 are put down with described Plate trolley 1A be connected, down-pressed pole 7A2, the down-pressed pole 7A2 are matched with the first centre bore 1A11, and one end with it is described Pedestal 7A1 is connected, and the other end is matched with the second graphite-pipe 6A3, and coal petrography sample 8A is placed in the down-pressed pole 7A2's Upper end is coaxially disposed with the down-pressed pole 7A2 and is additionally provided with confining pressure cushion block 7A3 positioned at the lower ends the second graphite-pipe 6A3, described Dead ring 10A is equipped between confining pressure cushion block 7A3 and the sample casing 6A1;The pyrophyllite powder and the confining pressure cushion block 7A3 Between be additionally provided with mica sheet 11A, be additionally provided with insulation sleeve 20A between the first centre bore 1A11 and the down-pressed pole 7A2;It needs , it is noted that confining pressure cushion block 7A3 is set on down-pressed pole 7A2, main function be the carrier that bears of load confining pressure is provided, and It is designed into this movable structure, dead ring 10A is on the one hand added for convenience, avoids experimental rig 100 from occurring short On the other hand road is that movable preferably coal petrography sample 8A can be disassembled.At work, it is located at the lower ends pedestal 7A1 Hydraulic elevator platform jacking pedestal 7A1 move upwards, to make the down-pressed pole 7A2 positioned at the upper ends pedestal 7A1 move upwards and support It is pressed on coal petrography sample 8A.
Between the shell 2A and the sample casing 6A1, and be arranged successively from outside to inside water cold sleeve 12A, First protective case 13A and the second protective case 14A, the water cold sleeve 12A, the first protective case 13A connect with the shell 2A It connects, the upper-end inner diameter of the first protective case 13A inner walls is more than its bottom diameter, and the outer wall of the second protective case 14A is suitable for It is matched with the first protective case 13A;The outer wall of the water cold sleeve 12A is equipped with sink 12A1;Specifically, on shell 2A Equipped with inlet and outlet, water inlet is connected with the upper port of sink 12A1, and water outlet is connected with the lower port of sink 12A1, Cooling water enters sink 12A1 by water inlet, and flow to water outlet along the outer wall of water cooling tube, can play reduction experiment in this way The effect of the surface temperature of device 100, and water cold sleeve 12A can also avoid the temperature of 100 inner lead of experimental rig Temperature is excessively high to generate destruction to conducting wire;Certain cooling effect can also be played to the oil temperature of hydraulic oil simultaneously.
Upper axis pressure loading unit 15A, the upper axis pressure unit include:Seaming chuck 15A1, the seaming chuck 15A1 with it is described Third centre bore 4AA is matched;Upperpush rod 15A2, the upperpush rod 15A2 is matched with the 4th centre bore 5A1, and one End is connected to the lower end of the seaming chuck 15A1, and the other end merges and the coal petrography sample with the second graphite-pipe 6A3 matchings Product 8A offsets only;Specifically, forcing press is set on seaming chuck 15A1, makes seaming chuck 15A1 along third center by forcing press Hole 4AA is moved down, and to push the upperpush rod 15A2 being attached thereto, upperpush rod 15A2 is made to compress the upper end of coal petrography sample 8A; That is, pressing loading unit 15A and lower axle to press loading unit 7A that can complete to coal petrography sample 8A in axial side by upper axis To pressurization.
Collection tube group AA, the collection tube group AA include the first collection tube AA1 and the second collection tube AA2, and described first adopts Collector AA1 sequentially passes through the seaming chuck 15A1 and the upperpush rod 15A2, is connected to the upper end of the coal petrography sample 8A;And institute It states seaming chuck 15A1 and sequentially passes through the bottom equipped with the first the acquisition port AA11, the second collection tube AA2 communicated with outside The seat 7A1 and down-pressed pole 7A2 is connected to the lower end of the coal petrography sample 8A, and the pedestal 7A1 is equipped with and is communicated with outside The second acquisition port AA21.Specifically, in the central axis of seaming chuck 15A1, upperpush rod 15A2, pedestal 7A1 and down-pressed pole 7A2 It is provided with through-hole, in order to which the first collection tube AA1 to be plugged in seaming chuck 15A1 and upperpush rod 15A2, by the second collection tube AA2 is plugged in pedestal 7A1 and down-pressed pole 7A2, can pass through during pressurizeing for coal petrography sample 8A in this way Gas caused by one acquisition port AA11 and the second acquisition port AA21 acquisition coal petrography samples 8A.And
Electrode plate groups 16A, the electrode plate groups 16A include the electric pole plate 16A1 being connected with the seaming chuck and with it is described The anode of the connected lower electrode plate 16A2 of support base, power supply are sequentially communicated seaming chuck 15A1, upperpush rod by electric pole plate 16A1 15A2, confining pressure pressure head 5A are to the upper end of graphite-pipe group 6A;The cathode of power supply by lower electrode plate 16A2 be sequentially communicated pedestal 7A1, Down-pressed pole 7A2, confining pressure cushion block 7A3 are to the lower end of graphite-pipe group 6A, to be heated to the coal petrography sample 8A;That is, Electric pole plate 16A1 is connected with the anode of power supply, and lower electrode plate 16A2 is connected with the cathode of power supply, and the anode of power supply is made to connect successively Lead to seaming chuck, upperpush rod and confining pressure pressure head to the upper end of graphite-pipe group;The cathode of power supply is set to be sequentially communicated pedestal, down-pressed pole and enclose Pressure pad block is to the lower end of graphite-pipe group;Graphite-pipe group can be heated by electrode plate groups 16A.It is worth noting that examination Experiment device 100 further includes thermocouple 21A, and the thermocouple 21A is plugged in the second collection tube AA2 and is connected to the coal The lower end of rock sample product 8A, that is to say, that thermocouple 21A is plugged to along the second collection tube AA2 at coal petrography sample 8A, in this way Coal petrography sample 8A can be measured into trip temperature.It should be pointed out that thermocouple 21A is plugged in the second collection tube AA2 not The second collection tube AA2 can be blocked, the acquisition to gas is interfered, and for the ease of installation thermocouple 21A and acquisition gas, Ke Yi Second acquisition port AA21, the second acquisition port AA21 is set on the gusset of pedestal 7A1 and sequentially passes through pedestal 7A1, down-pressed pole 7A2 connections To the second collection tube AA2 of down-pressed pole 7A2, and will be positioned at the acquisition port of the lower ends pedestal 7A1, i.e. the second collection tube AA2 or more Acquisition port at the pedestal 7A1 is sealed after thermocouple 21A is packed into, and can both facilitate installation thermocouple in this way 21A can acquire gas again.
It is understood that before the test, first graphite tube assembly 6A is mounted on flat bogie 1A, by coal petrography sample 8A Be placed in the second graphite-pipe 6A3, and its lower end is supported only on down-pressed pole 7A2, the shell 2A and the sample casing 6A1 it Between, and it is arranged water cold sleeve 12A, the first protective case 13A and the second protective case 14A successively from outside to inside;Confining pressure piston 4A is covered If entering the second centre bore 3A1, the upper ends confining pressure pressure head 5A are connected to the lower end of confining pressure piston 4A;Then by the confining pressure end cap after combination 3A, confining pressure piston 4A, confining pressure pressure head 5A enter accommodating chamber by the upper open ports of the accommodating chamber of the shell 2A, make described enclose The lower end of pressure head 5A is pressed to support only on the pyrophyllite sleeve 6A4;Finally make connected seaming chuck 15A1 and upperpush rod 15A2 successively Across third centre bore 4AA and the 4th centre bore 5A1, support only in the upper end of coal petrography sample 8A;It, can be by being located at bottom when experiment The hydraulic elevator platform of the lower ends seat 7A1 jacks upwards, the forcing press positioned at the upper ends seaming chuck 15A1 is pressed downward seaming chuck 15A1 and realizes To the axial compressive force of coal petrography sample 8A;Can by by oil inlet inject hydraulic oil, hydraulic oil push confining pressure piston 4A along Second centre bore 3A1 is moved downward, and drives the confining pressure pressure head 5A positioned at the lower ends confining pressure piston 4A to move downward, by confining pressure pressure head 5A Pyrophyllite sleeve 6A4 is compressed, makes pyrophyllite sleeve 6A4 compressive deformations to lateral transport pressure, confining pressure is generated to coal petrography sample 8A;Pass through Electrode plate groups 16A heats coal petrography sample 8A to realize hot environment;After the completion of experiment, by shell 2A and flat bogie 1A It dismantles, by the device integral lifting on the tops flat bogie 1A, i.e., by shell 2A, confining pressure end cap 3A, confining pressure piston 4A, confining pressure pressure head 5A, water cold sleeve 12A, the first protective case 13A, the second protective case 14A and seaming chuck 15A1 and upperpush rod 15A2 are lifted by crane together, Then utilize mold by the first graphite-pipe 6A2, pyrophyllite sleeve 6A4, the second graphite-pipe 6A3, the coal petrography sample inside sample casing 6A1 Product 8A and corundum pad 9A take out, and are taken out coal petrography sample 8A using the tool of incision.The experimental rig 100 may be implemented axis pressure and enclose The synchronous load of pressure, when sampling, can ensure the integrality of coal petrography sample structure, can accurately simulate geological environment, structure is closed Reason, easy to disassemble, safety coefficient is high.
In one embodiment of the invention, described as shown in Figure 1, the experimental rig 100 further includes guide rod 17A By the guide rod 17A connections between flat bogie 1A and the shell 2A, two are at least configured on the flat bogie 1A Symmetrically arranged first positioning hole, the shell 2A is equipped with second location hole corresponding with the first positioning hole, described Guide rod 17A sequentially passes through the second location hole and first positioning hole;That is, in test, shell 2A is down to flat When rising far from flat bogie 1A on plate trolley 1A or by shell 2A, guide rod 17A plays the role of guiding to shell 2A, this Sample can improve the precision of the installation and dismounting of shell 2A, improve the accuracy of experiment.
In one embodiment of the invention, as shown in Figure 1, the flat bogie 1A includes:Diameter of axle 1A1, described first Centre bore 1A11 is set on the diameter of axle 1A1;Flange 1A2, the flange 1A2 are extended outwardly by the periphery wall of the diameter of axle 1A1, The multiple first positioning hole is set on the flange 1A2, specifically, being provided at circumferentially spaced along the diameter of axle 1A1 Multiple first positioning holes can connect guide rod 17A by the way that first positioning hole is arranged, so that the moving range of shell 2A is limited to and lead To on bar 17A;This structure can improve the bearing capacity of experimental rig 100.
In one embodiment of the invention, as shown in figure 3, the shell 2A be equipped with it is interior prolong plate 2A1, it is described in prolong plate 2A1 extends to away from the directions the shell 2A to form the 5th centre bore 2AA along the inner wall of the shell 2A, in the described 5th Heart hole 2AA is matched with the diameter of axle 1A1, and the water cold sleeve 12A, the first protective case 13A are supported and only prolonged plate inside On 2A1.It is understood that the lower end of water cold sleeve 12A and the first protective case 13A be pressed in prolong on plate 2A1, can rise When dropping shell 2A, make water cold sleeve 12A, the first protective case 13A, the second protective case 14A with shell 2A synchronous ascendings;Specifically Ground, in lifting, water cold sleeve 12A and the first protective case 13A prolong under the support of plate 2A1 inside as shell 2A is lifted, and by It is more than its bottom diameter, the outer wall of the second protective case 14A with matching in the upper-end inner diameter of the inner wall of the first protective case 13A Upper end outer diameter be more than its lower end outer diameter, the inner wall of the first protective case 13A can be made to block the second protective case 14A, to make the Two protective case 14A are lifted together with the first protective case 13A.
In another embodiment of the present invention, the shell 2A and the water cold sleeve 12A, first protective case It can also be connected by connection structure between 13A, for example, being said by taking shell 2A and the connection of water cold sleeve 12A as an example here Bright, connection structure includes the sliding slot being arranged on the inner wall of shell 2A and is connected and is arranged in water cold sleeve with the sliding slot Protrusion on the outer wall of 12A, sliding slot by the upper end of shell extend downwardly through the upper edge of the shell 2A and not through described The lower ora terminalis of shell 2A, and the sliding slot lower end extend position can make water cold sleeve 12A be mounted on sliding slot in when, lower end with The lower end of shell 2A flushes, and this mounting means is simple and reliable;It is worth noting that sliding slot can also be arranged in water cold sleeve On the outer wall of 12A, protrusion can also be arranged on the inner wall of shell 2A, and the present invention is not restricted to this;Water cold sleeve 12A and It can also be connected by this connection structure between one protective case 13A, which is not described herein again.
Preferably, as shown in figure 3, it is adjustable by adjusting bolt 7A11 between the pedestal 7A1 and the flat bogie 1A Save land connection, specifically, multiple third location holes is equipped on pedestal 7A1, and multiple 4th positioning are arranged on flat bogie 1A Hole, the multiple third location hole and the multiple 4th location hole correspond, and adjusting bolt 7A11 sequentially passes through described the Three location holes and the 4th location hole, more specifically, in circumferentially disposed multiple journal stirrups of pedestal 7A1, third location hole is set It sets on journal stirrup.By adjustable adjusting bolt 7A11 connections, adjustment base 7A1 can be carried out with experimental actual conditions and existed Coal petrography sample 8A is then adjusted to suitable position by the height in upper and lower directions.
In one embodiment of the invention, as shown in Figure 1, the upper end of the confining pressure end cap 3A is fixed with hangers 18A, Hangers 18A is arranged on confining pressure end cap 3A can facilitate confining pressure end cap 3A liftings, it is preferable that can be symmetrical on confining pressure end cap 3A Multiple hangers 18A are set, make being more uniformly stressed for confining pressure end cap 3A in lifting in this way.
Preferably, the sink 12A1 in the shape of a spiral, the water cold sleeve is wound to by the upper end of the water cold sleeve 12A The lower end of 12A, sink 12A1 settings is spiral, to increase the length of sink 12A1, cooling water can be extended in this way Cooling time.
Preferably, it is also arranged with sealing ring 19A on the periphery wall of the piston portion 4A2, the water cold sleeve 12A, passed through Piston portion 4A2, water cold sleeve 12A periphery wall on be arranged sealing ring 19A, it is ensured that confining pressure piston 4A and confining pressure end cap 3A Between leakproofness, ensure fluid will not be leaked in confining pressure oil pocket;And sink on water cold sleeve 12A can be made Cooling water in 12A1 will not be revealed, it is further preferred that sealing can be respectively set in the top and bottom of water cold sleeve 12A Enclose 19A.In addition, between the seaming chuck 15A1 and upperpush rod 15A2, between upperpush rod 15A2 and confining pressure pressure head 5A, confining pressure pressure head Between 5A and graphite-pipe 6A1, between confining pressure cushion block 7A3 and down-pressed pole 7A2, between confining pressure cushion block 7A3 and dead ring 10A, insulation There is multiple-sealed circle 19 between ring 10A and graphite-pipe 6A1 and between down-pressed pole 7A2 and pedestal 7A1
To achieve the goals above, a kind of coal petrography high temperature and pressure deformation test method of the invention, the method includes such as Lower step:
S1:Fill sample:First high temperature high voltage resistant is sprayed on the inner wall of the first graphite-pipe 6A2 and the outer wall of the second graphite-pipe 6A3 Lubricant, be formed by cavity 6AA between the first graphite-pipe 6A2 and the second graphite-pipe 6A3 and be arranged mold, then in mould Tool in insert paraffin stone powder, in order to more really simulation geological conditions, by pyrophyllite powder carry out segmentation be pressed into it is multiple Pyrophyllite sleeve 6A4;Corundum is set on the upper surface of down-pressed pole 7A2 and pads 9A, coal petrography sample 8A is placed on corundum pad 9A, more has Body, corundum pad 9A can play heat-insulated effect.
S2:Installation:Between the shell 2A and the sample casing 6A1, and the water-cooled jacket being arranged successively from outside to inside Pipe 12A, the first protective case 13A and the second protective case 14A;Confining pressure piston 4A is arranged into the second centre bore 3A1, confining pressure pressure head 5A Upper end is connected to the lower end of confining pressure piston 4A, and the second centre bore 3A1, third centre bore 4AA and the 4th centre bore 5A1 are coaxially set It sets;Then confining pressure end cap 3A, confining pressure piston 4A, the confining pressure pressure head 5A after combination are opened by the upper of accommodating chamber of the shell 2A Opening enter accommodating chamber, make the confining pressure pressure head 5A lower end support only on the pyrophyllite sleeve 6A4, and confining pressure end cap 3A with It is connected by fixing piece between the shell 2A;Then upperpush rod 15A2 and seaming chuck 15A1 are placed in third centre bore successively 4AA and the 4th centre bore 5A1.
S3:Pressurization and heating:It is respectively arranged with forcing press in the lower end of the upper end of seaming chuck 15A1 and pedestal 7A1, is carried out When axial pressure, seaming chuck 15A1 is moved downward in third centre bore 4AA, and seaming chuck 15A1 is pressed downward upperpush rod 15A2 at this time It is moved down in the 4th centre bore 5A1, to which upperpush rod 15A2 compresses downwards coal petrography sample 8A;Pedestal 7A1 is transported upwards simultaneously It is dynamic, it drives the down-pressed pole 7A2 being located in the first centre bore 1A11 to move upwards, the lower face of coal petrography sample 8A is compressed; When carrying out confining pressure, hydraulic oil is injected by oil inlet, hydraulic oil pushes confining pressure piston 4A to be transported downwards along the second centre bore 3A1 It is dynamic, it drives the confining pressure pressure head 5A positioned at the lower ends confining pressure piston 4A to move downward, pyrophyllite sleeve 6A4 is compressed by confining pressure pressure head 5A, is made Pyrophyllite sleeve 6A4 compressive deformations generate confining pressure to lateral transport pressure, to coal petrography sample 8A;Electrode plate groups 16A is opened to coal petrography Sample 8A is heated, to simulate hot environment.Coal petrography sample 8A in confining pressure, axis pressure and hot environment, in this way may be used simultaneously More accurately to simulate geological environment.
S4:Sampling:Shell 2A and flat bogie 1A are dismantled, that is, the device integral lifting on the tops flat bogie 1A will Shell 2A, confining pressure end cap 3A, confining pressure piston 4A, confining pressure pressure head 5A, water cold sleeve 12A, the first protective case 13A, the second protective case 14A and seaming chuck 15A1 and upperpush rod 15A2 are lifted by crane together, then utilize mold by the first graphite inside sample casing 6A1 Pipe 6A2, pyrophyllite sleeve 6A4, the second graphite-pipe 6A3, coal petrography sample 8A, corundum pad 9A and positioned at the upper of the upper ends coal petrography sample 8A Compression bar 15A2 and down-pressed pole 7A2 positioned at its lower end integrally take out, i.e. sample external member;Using cut tool by coal petrography sample 8A from It is taken out in sample external member.Specifically, as shown in figure 4, mold 300 includes the first mold 1C and the second mold 2C, the first mold 1C It for tubular structure, being internally provided with chamber 1C1, is inverted sample external member when taking coal petrography sample 8A, i.e. upperpush rod 15A2 is downward, under Compression bar 7A2 is upward.First mold 1C is placed in the upper end of the sample external member after being inverted, and the second mold 2C is placed in the Sample sleeve after being inverted The lower end of part, sample casing 6A1 are pressed on the lower end of the first mold, and the second mold 2C is pressed on pyrophyllite sleeve 6A4, while right First mold 1C and the second mold 2C implements opposite pressure 3C pressurizations, pyrophyllite sleeve 6A4, the second graphite-pipe 6A3 and coal petrography sample Product 8A and corundum pad 9A are moved upwardly into 1C1 in the chamber of the first mold 1C under the action of the second mold 2C, then sharp Coal petrography sample 8A is taken out with cutting tool.It is worth noting that being equipped with up and down at the central axis of the second mold 2C Through hole 2C3, through hole 2C3 is adapted for engagement with upperpush rod 15A2.For more weighted sampling, bullet is arranged on the outside of the second mold 2C Spring 2C1, the one end for making spring 2C1 and the pedestal 2C2 of the second mold 2C offset only, and the other end is pressed against each other with sample casing 6A1, It sample casing 6A1 can suddenly fall during anti-retaining sample in this way, to influence the integrality of coal petrography sample 8A.This method energy Complete coal petrography sample 8A is enough obtained, it is easy to operate, it is more safe and reliable.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (9)

1. a kind of coal petrography high temperature and pressure deformation testing device, which is characterized in that including:
Flat bogie (1A), flat bogie (1A) are movably arranged on track, and which is provided with the first center up and down Hole (1A11);
Shell (2A), the shell (2A) is internally provided with accommodating chamber, and its lower end is connected with flat bogie (1A);
Confining pressure end cap (3A), the confining pressure end cap (3A) are fixed on accommodating chamber upper end, which is provided with second up and down Centre bore (3A1) and fuel feed hole (3A2);
Confining pressure piston (4A), the confining pressure piston (4A) include compatible bar portion (4A1) and one with the second centre bore (3A1) It is formed in the piston portion (4A2) of the lower end bar portion (4A1), the confining pressure piston (4A) is equipped with third centre bore up and down (4AA);
Confining pressure pressure head (5A), the confining pressure pressure head (5A) are fixed on the lower end of piston portion (4A2), which is provided with up and down Four centre bores (5A1), the 4th centre bore (5A1), third centre bore (4AA), the second centre bore (3A1) and the first centre bore (1A11) is coaxially disposed;
Graphite tube assembly (6A), the graphite tube assembly (6A) include:Sample casing (6A1), the first graphite-pipe (6A2), second Graphite-pipe (6A3) and pyrophyllite sleeve (6A4), the same upper end for being located in the first centre bore (1A11) of the sample casing (6A1), and It is fixedly connected with the flat bogie (1A);First graphite-pipe (6A2) sets along the inner wall of the sample casing (6A1) It sets, the second graphite-pipe (6A3) is sheathed on the first graphite-pipe (6A2) inside and forms cavity between the first graphite-pipe (6A2) (6AA), the confining pressure pressure head (5A) coordinate with cavity (6AA);The pyrophyllite sleeve (6A4) is filled in cavity (6AA);
Lower axle pressure loading unit (7A), lower axle pressure loading unit (7A) include:Pedestal (7A1) and down-pressed pole (7A2), the pedestal (7A1) is connected with the flat bogie (1A), and the down-pressed pole (7A2) matches with first centre bore (1A11), and its One end is connected with pedestal (7A1), and the other end is matched with the second graphite-pipe (6A3), and coal petrography sample (8A) is placed in down-pressed pole The upper end of (7A2) is coaxially disposed with the down-pressed pole (7A2) and is additionally provided with confining pressure cushion block positioned at the lower end the second graphite-pipe (6A3) (7A3) is equipped with dead ring (10A) between the confining pressure cushion block (7A3) and sample casing (6A1);Pyrophyllite sleeve (6A4) and confining pressure It is additionally provided with mica sheet (11A) between cushion block (7A3), insulation sleeve is additionally provided between the first centre bore (1A11) and down-pressed pole (7A2) (20A);
Water cold sleeve (12A), the first protective case (13A) and the second protective case (14A) are sequentially sleeved at the shell from outside to inside Between (2A) and the sample casing (6A1), water cold sleeve (12A), the first protective case (13A) are connect with shell (2A), and first The upper-end inner diameter of protective case (13A) inner wall is more than its bottom diameter, the outer wall and the first protective case of the second protective case (14A) (13A) is matched;The outer wall of water cold sleeve (12A) is equipped with water-flowing trough (12A1);
Upper axis pressure loading unit (15A), the upper axis pressure unit include:Seaming chuck (15A1) and upperpush rod (15A2), seaming chuck (15A1) is matched with the third centre bore (4AA);Upperpush rod (15A2) is matched with the 4th centre bore (5A1), and One end is connected to the lower end of the seaming chuck (15A1), and the other end merges with second graphite-pipe (6A3) matching and institute Coal petrography sample (8A) is stated to offset only;
Collection tube group (AA), collection tube group (AA) include the first collection tube (AA1) and the second collection tube (AA2), the first collection tube (AA1) seaming chuck (15A1) and the upperpush rod (15A2) are sequentially passed through, one end is connected to the coal petrography sample (8A) Upper end, the other end is the first acquisition port (AA11) on the seaming chuck (15A1);Second collection tube (AA2) is successively Through the pedestal (7A1) and the down-pressed pole (7A2), one end is connected to the lower end of coal petrography sample (8A), and the other end is The second acquisition port (AA21) on pedestal (7A1);And
Electrode plate groups (16A), the electrode plate groups (16A) include the electric pole plate (16A1) being connected with the seaming chuck (15A1) The anode of the lower electrode plate (16A2) being connected with the pedestal (7A1), power supply is sequentially communicated by electric pole plate (16A1) Pressure head (15A1), upperpush rod (15A2), confining pressure pressure head (5A) to the upper end of graphite-pipe group (6A);The cathode of power supply passes through lower electrode Plate (16A2) is sequentially communicated pedestal (7A1), down-pressed pole (7A2), confining pressure cushion block (7A3) to the lower end of graphite-pipe group (6A), with right The coal petrography sample (8A) is heated.
2. coal petrography high temperature and pressure deformation testing device according to claim 1, which is characterized in that experimental rig (100) is also Including guide rod (17A), it is connect by guide rod (17A) between the flat bogie (1A) and the shell (2A), it is described flat Two symmetrically arranged first positioning holes are at least configured on plate trolley (1A), shell (2A) is equipped with corresponding with first positioning hole Second location hole, guide rod (17A) sequentially passes through second location hole and first positioning hole.
3. coal petrography high temperature and pressure deformation testing device according to claim 2, which is characterized in that the flat bogie (1A) Including:
The diameter of axle (1A1), first centre bore (1A11) are set on the diameter of axle (1A1);
Flange (1A2), the flange (1A2) are extended outwardly by the periphery wall of the diameter of axle (1A1), and the multiple first positioning hole is set to On flange (1A2).
4. coal petrography high temperature and pressure deformation testing device according to claim 3, which is characterized in that set on the shell (2A) Prolong plate (2A1) in having, inside prolongs plate (2A1) along the inner wall of shell (2A) away from shell (2A) and to the center of the shell (2A) Direction extends to form the 5th centre bore (2AA), and the 5th centre bore (2AA) is matched with the diameter of axle (1A1), and the water cooling Casing (12A), first protective case (13A) support only to be prolonged on plate (2A1) inside.
5. coal petrography high temperature and pressure deformation testing device according to claim 2, which is characterized in that the pedestal (7A1) and It is adjustably connected by adjusting bolt (7A11) between the flat bogie (1A).
6. according to coal petrography high temperature and pressure deformation testing device according to any one of claims 1 to 5, feature exists In the upper end of the confining pressure end cap (3A) is fixed with hangers (18A).
7. according to coal petrography high temperature and pressure deformation testing device according to any one of claims 1 to 5, feature exists In the sink (12A1) is wound to its lower end in the shape of a spiral, by the upper end of the water cold sleeve (12A).
8. according to coal petrography high temperature and pressure deformation testing device according to any one of claims 1 to 5, feature exists In, the piston portion (4A2), the water cold sleeve (12A) periphery wall on be also arranged with sealing ring (19A).
9. a kind of coal petrography high temperature and pressure deformation test method, which is characterized in that described method includes following steps:
S1:Fill sample:First high temperature high voltage resistant is sprayed on the inner wall of the first graphite-pipe (6A2) and the outer wall of the second graphite-pipe (6A3) Lubricant, be formed by between the first graphite-pipe (6A2) and the second graphite-pipe (6A3) in cavity (6AA) and be arranged mold, so Paraffin stone powder is inserted in mold afterwards, in order to more really simulate geological conditions, pyrophyllite powder is subjected to segmentation compacting At multiple pyrophyllite sleeves (6A4);Corundum pad (9A) is set on the upper surface of down-pressed pole (7A2), and coal petrography sample (8A) is placed in just In jade mattress (9A);
S2:Installation:Between the shell (2A) and the sample casing (6A1), and the water-cooled jacket being arranged successively from outside to inside Manage (12A), the first protective case (13A) and the second protective case (14A);Confining pressure piston (4A) is arranged into the second centre bore (3A1), The upper end confining pressure pressure head (5A) is connected to the lower end of confining pressure piston (4A), and the second centre bore (3A1), third centre bore (4AA) and 4th centre bore (5A1) is coaxially disposed;Then by confining pressure end cap (3A), confining pressure piston (4A), the confining pressure pressure head (5A) after combination Enter accommodating chamber by the upper open ports of the accommodating chamber of the shell (2A), so that the lower end of the confining pressure pressure head (5A) is supported and only exist On the pyrophyllite sleeve (6A4), and it is connect by fixing piece between confining pressure end cap (3A) and the shell (2A);Then by upper pressure Bar (15A2) and seaming chuck (15A1) are placed in third centre bore (4AA) and the 4th centre bore (5A1) successively;
S3:Pressurization and heating:It is respectively arranged with forcing press in the lower end of the upper end of seaming chuck (15A1) and pedestal (7A1), is carried out When axial pressure, seaming chuck (15A1) moves downward in third centre bore (4AA), and seaming chuck (15A1) is pressed downward pressure at this time Bar (15A2) moves down in the 4th centre bore (5A1), to which upperpush rod (15A2) compresses downwards coal petrography sample (8A);Simultaneously Pedestal (7A1) moves upwards, and drives the down-pressed pole (7A2) being located in the first centre bore (1A11) to move upwards, to coal petrography sample It is compressed the lower face of (8A);Hydraulic oil is injected by oil inlet, hydraulic oil pushes confining pressure piston (4A) along the second center (3A1) is moved downward in hole, drives the confining pressure pressure head (5A) positioned at the lower end confining pressure piston (4A) to move downward, by confining pressure pressure head (5A) Pyrophyllite sleeve (6A4) is compressed, makes pyrophyllite sleeve (6A4) compressive deformation to lateral transport pressure, coal petrography sample (8A) generation is enclosed Pressure;Electrode plate groups (16A) are opened to heat coal petrography sample (8A);
S4:Sampling:Shell (2A) and flat bogie (1A) are dismantled, by the device integral lifting on the top flat bogie (1A), i.e., By shell (2A), confining pressure end cap (3A), confining pressure piston (4A), confining pressure pressure head (5A), water cold sleeve (12A), the first protective case (13A), the second protective case (14A) and seaming chuck (15A1) and upperpush rod (15A2) lift by crane together, then utilize mold (300) By internal the first graphite-pipe (6A2) of sample casing (6A1), pyrophyllite sleeve (6A4), the second graphite-pipe (6A3), coal petrography sample (8A) and corundum pad (9A) take out, and are taken out coal petrography sample (8A) using the tool of incision.
CN201810539243.0A 2018-05-30 2018-05-30 Coal rock high-temperature high-pressure deformation test device and test method Expired - Fee Related CN108593457B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN110044686A (en) * 2019-04-29 2019-07-23 合肥工业大学 A kind of portable triaxial stress strain detection testing device loaded using counter-force
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CN113865984A (en) * 2021-08-19 2021-12-31 中国原子能科学研究院 Vacuum/inert gas protection test device suitable for radioactive tubular sample
CN113916702A (en) * 2021-08-26 2022-01-11 华东理工大学 Multi-axis creep-fatigue mechanical property testing device suitable for high-temperature environment

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CN110044686A (en) * 2019-04-29 2019-07-23 合肥工业大学 A kind of portable triaxial stress strain detection testing device loaded using counter-force
CN110044686B (en) * 2019-04-29 2020-12-08 合肥工业大学 Portable triaxial stress-strain testing device loaded by counter-force
CN112179748A (en) * 2020-10-12 2021-01-05 河南理工大学 Coal rock sample CT triaxial experiment sample loading method
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CN112284933B (en) * 2020-10-20 2022-09-16 中国矿业大学(北京) Experimental device and experimental method for measuring rock mass circulating shear seepage under high temperature and high pressure
CN113865984A (en) * 2021-08-19 2021-12-31 中国原子能科学研究院 Vacuum/inert gas protection test device suitable for radioactive tubular sample
CN113865984B (en) * 2021-08-19 2022-11-25 中国原子能科学研究院 Vacuum/inert gas protection test device suitable for radioactive tubular sample
CN113916702A (en) * 2021-08-26 2022-01-11 华东理工大学 Multi-axis creep-fatigue mechanical property testing device suitable for high-temperature environment

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