CN201548462U - Triaxial rock sample heating device under pressure - Google Patents
Triaxial rock sample heating device under pressure Download PDFInfo
- Publication number
- CN201548462U CN201548462U CN2009200492246U CN200920049224U CN201548462U CN 201548462 U CN201548462 U CN 201548462U CN 2009200492246 U CN2009200492246 U CN 2009200492246U CN 200920049224 U CN200920049224 U CN 200920049224U CN 201548462 U CN201548462 U CN 201548462U
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- Prior art keywords
- rock sample
- thick cyclinder
- temperature
- triaxial
- pressing head
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- 239000011435 rock Substances 0.000 title claims abstract description 50
- 238000010438 heat treatment Methods 0.000 title claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 239000010445 mica Substances 0.000 claims abstract description 13
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000004826 seaming Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000011253 protective coating Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 238000005065 mining Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 206010057175 Mass conditions Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
A triaxial rock sample heating device under pressure mainly comprises a traction trolley base, a thiaxial pressure chamber furnace body, an up-and-down pressing head and confining pressure material, wherein the triaxial pressure chamber furnace body sleeved by an inner cylinder and an outer cylinder is arranged on the traction trolley base, the up-and-down pressing head is arranged in the thiaxial pressure chamber furnace body, a heat insulating layer is attached to the inner wall of the triaxial pressure chamber furnace body, an insulating thermal protective coating is attached to the outer periphery of the up-and-down pressing head, a space surrounded by a shaft pressing head, the up-and-down pressing head, a rock sample and the inner cylinder is provided with a pressure layer and a plurality of thermal couples, and a cooling copper pipe is arranged on the periphery of the outer cylinder. A triaxial press machine is utilized to pressurize the shaft pressing head and a confining pressure sleeve to regulate output current of a temperature control cabinet, thereby changing heat energy of electrothermal alloy sheets, heat energy is transmitted to the rock sample after passing through mica paper, the thermal couples can measure temperature around the electrothermal alloy sheets in real time, the temperature is displayed and recorded by the temperature control cabinet, and the current is regulated through comparing displayed temperature with the experiment set temperature so as to control temperature of the rock sample.
Description
Technical field
The utility model relates to a kind of rock sample heating arrangement, and especially a kind of rock sample heating arrangement that is applicable to rock triaxial test belongs to rock mechanics engineering field.
Background technology
Progress at full speed along with development of human society and science and technology, more and more such as the engineering problem that underground coal gasification(UCG), high temperature rock mass geothermal exploitation, deep oil-gas mining, waste disposal etc. are relevant with temperature, press for and understand the coupled characteristic of deep rock mass under temperature, stress and fluid acting in conjunction, and the solution of these problems be unable to do without the development and progress of experimental technique, be unable to do without the development of testing machine technology.For example: the degree of depth of petroleum drilling has reached 8000m, and high temperature rock mass geothermal energy resources mining depth is more than 5000m, and the metal mine mining depth reaches 3000m, and underground coal gasification(UCG) and underground fire temperature are more than 1000 ℃.Domestic and international existing high temperature and pressure test machine, although the temperature and pressure of test is all very high, but institute's test block mostly is φ 20 * 40mm, very little, and function singleness, only can carry out the research of geophysics aspects such as deformation characteristic and elastic wave, the rock mass condition relevant with the human engineering activity can't be provided at all.
American MTS MTS8504600KW testing machine can be tested the sample that is of a size of Φ 50 * 100mm, adopts hydraulic oil to load confined pressure, the oil temperature control is within ℃ scope of-20 ℃≤T≤200, generally between 200 tons to 300 tons, to load temperature low but still exist, the shortcoming that pressure is little.Engineering geomechanics key lab of Chinese Academy of Sciences rock mechanics experiment chamber TAW-2000 electro-hydraulic servo testing machine has axial compression, country rock, pore water pressure and temperature independence closed-loop control system, main frame adopts three main machine structures of American MTS, rigidity is greater than 10GN/m, axial compression 2000kN, confined pressure 100MPa, pore water pressure 60MPa, temperature-50~200 ℃, test specimen diameter 25mm~100mm, minimal sampling time is spaced apart 1ms.Can carry out single shaft, the test of triaxial stress strain overall process, constant speed, speed change, circulation add unloading and the test of multiple Waveform Control, pore water and property at high and low temperature test etc.
At present, rock mechanics laboratory research both at home and abroad is mainly based on the rocklet sample of Φ 50 * 100mm, and pressure testing machine rigidity is little, the phenomenon that has disrumpent feelings back resilience in the practical operation, in triaxial test, adopt liquid to apply confined pressure simultaneously, do not possess the condition of high temperature, high pressure coupling.The rock mechanics engine request has more deep research and understanding to rock mass mechanics, solves the problem that runs into the actual engineering from macroscopic view.
Summary of the invention
Technical matters: the purpose of this utility model is at having problem in the prior art, provide a kind of simple in structure, easy to operate, can carrying out three-axis force to the major diameter rock sample and learn performance test apparatus.
Technical scheme: rock sample heating arrangement of the present utility model, comprise and pass the dolly base, pass that to be provided with by the inside and outside two-layer thick cyclinder prestress cover that contracts on the dolly base be triaxial cell's body body of heater of one, the middle part of passing dolly base has the through hole with interior thick cyclinder same diameter, be provided with the confined pressure cover in the through hole, be provided with the axial compression head in the confined pressure cover, the axial compression head is provided with the push-down head that is supported on rock sample body lower end, and rock sample body upper end is provided with seaming chuck; Be attached with thermofin on the inwall of interior thick cyclinder; Be attached with the electrothermal alloy sheet that is communicated with up and down on the excircle of seaming chuck and axial compression head, be attached with insulated thermal insulating layer on the excircle of rock sample body; In the space that axial compression head and push-down head and interior thick cyclinder are surrounded pyrophyllite powder is housed down, in the space that rock sample body and interior thick cyclinder are surrounded Nacl is housed, and a plurality of thermopairs are housed; Pyrophyllite powder is housed in the space that seaming chuck and interior thick cyclinder surrounded; Interior thick cyclinder top is provided with the cover plate that has copper electrode, and cover plate is provided with the tapered plug that thermocouple lead is derived, and is furnished with the water cooling copper pipe on the excircle of outer thick cyclinder.
Described insulated thermal insulating layer is made of the interior mica paper layer and the outer mica paper layer that are located at inside and outside the electrothermal alloy sheet; Described thermofin is a mica paper; Electrothermal alloy sheet outside on described seaming chuck and the push-down head excircle is provided with the copper sheathing with its banding; Thick cyclinder, outer thick cyclinder adopt the casting of H13 steel in described; Described thermopair armouring has porcelain tube.
Beneficial effect: the utility model solved for a long time little rock sample, low temperature, liquid applies the experiment condition of confined pressure; Device adopts the big rock sample of Φ 200 * 400mm, is 64 times of common rocks sample, allows rock sample that big crack is arranged simultaneously, can simulate the influence of structural surface to rock mass strength; Adopt the solid particle Nacl to apply confined pressure, allow high temperature, high pressure coupled field, maximum temperature can reach 600 ℃, test specimen maximum axial pressure 318MPa, maximum side direction solid pressure transmission pressure 250MPa, maximum pore pressure pressure 250MPa; The high temperature triaxial cell has high-precision temperature stabilization control function, and temperature control sensitivity is not more than ± and 0.3%;
Under can the researching high-temperature high pressure, or under the normal temperature, the deformation behaviours of rock mass, strength characteristics, flow thermal coupling characteristic, rheological characteristics, Penetration Signature, thermal conduction characteristic admittedly; Under research heat and the stress compound action, solid mineral (coal, oil shale etc.) phase transformation, fusion, heat and mass, liquefaction, gasification, characteristic and rules such as chemical reaction; Under the researching high-temperature high pressure, the interaction of rock mass deformation and rig tool, waterfrac treatment rule etc.
Equipment is mainly used in explores deep mining, the underground direct liquefaction of coal and gasification, underground heat exploitation, coal-bed gas exploitation, deep oil-gas mining, waste disposal, mine safety, building safety etc. the deep scientific law and the spontaneous phenomenon in engineering field very widely, and the thinking and the research direction of originality is provided for the energy and development of resources.
Description of drawings
Fig. 1 is a rock sample heating arrangement structural representation of the present utility model.
Fig. 2 is a local I enlarged drawing among the utility model Fig. 1.
Fig. 3 is a local I I enlarged drawing among the utility model Fig. 1.
Among the figure: 1-thermocouple lead, 2-tapered plug, 3-cover plate, 4-seaming chuck, the last pyrophyllite powder of 5-, 6-Nacl, 7-rock sample, 8-cooling copper tube, 9-passes dolly base, pyrophyllite powder under the 10-, 11-push-down head, 12-axial compression head, thick cyclinder in the 13-confined pressure cover, 14-, the outer thick cyclinder of 15-, 16-copper sheathing, mica paper layer in the 17-, 18-electrothermal alloy sheet, the outer mica paper layer of 19-, the 20-thermopair, 21-porcelain tube, 22-mica paper.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Rock sample heating arrangement of the present utility model, mainly last push-down head and the confined pressure material by the fixedly rock sample body 7 of passing dolly base 9, being located at triaxial cell's body of heater of passing on the dolly base 9, be provided with in triaxial cell's body of heater constitutes, triaxial cell's body of heater adopts the casting of H13 steel to form by interior thick cyclinder 14 and outer thick cyclinder 15, be the different thick cyclinders of two diameters, the internal diameter of interior thick cyclinder 14
External diameter
The internal diameter of outer thick cyclinder 15 is
External diameter
Highly all be about 1000mm, inwall carries out the nitriding processing after the finishing of internal layer thick cyclinder, and two cylinder prestress contract and overlap assembling afterwards; The middle part of passing dolly base 9 has the through hole with interior thick cyclinder 14 same diameter, be provided with confined pressure cover 13 in the through hole, be provided with axial compression 12 in the confined pressure cover 13, axial compression 12 is provided with the push-down head 11 that is supported on rock sample body 7 lower ends, and rock sample body 7 upper ends are provided with seaming chuck 4; Be attached with mica paper thermofin 22 on the inwall of interior thick cyclinder 14; Be attached with the electrothermal alloy sheet 18 that is communicated with up and down on the excircle of seaming chuck 4 and push-down head 12, electrothermal alloy sheet 18 outsides are provided with the copper sheathing 16 with its banding.Be attached with insulated thermal insulating layer on the excircle of rock sample body 7, insulated thermal insulating layer constitutes by being located at electrothermal alloy sheet 18 inside and outside interior mica paper layer 17 and outer mica paper layer 19.In the space that axial compression 12 and push-down head 11 and interior thick cyclinder 14 are surrounded pyrophyllite powder 10 is housed down, Nacl 6 is housed and a plurality of thermopairs 20 are housed in the space that rock sample body 7 and interior thick cyclinder 14 are surrounded, each thermopair 20 equal armouring except that contact has porcelain tube 21, to guarantee insulation effect.In the space that seaming chuck 4 and interior thick cyclinder 14 are surrounded pyrophyllite powder 5 is housed; Interior thick cyclinder 14 tops are provided with the cover plate made from the H13 steel 3, cover plate 3 is provided with copper electrode, and be provided with the tapered plug 2 that thermocouple lead 1 is derived, in order to prevent that the cast steel temperature is too high in the experimentation, surpass 300 ℃ of design temperatures, the exterior circular column of thick cyclinder 15 circumferentially twines the copper pipe 8 of cooling usefulness outside being close to.The diameter of copper pipe 8 is
The water spacer of intaking out is installed, and chilled water enters copper pipe 8 behind supercharge pump, and the high-temperature water that is produced enters the chilled water water tank by water return outlet.
Claims (6)
1. rock specimen under triaxial pressure heating arrangement, it is characterized in that: it comprises passes dolly base (9), passing dolly base (9) is provided with by inside and outside two-layer thick cyclinder (14,15) the prestress cover that contracts and is triaxial cell's body of heater of one, the middle part of passing dolly base (9) has the through hole with interior thick cyclinder (14) same diameter, be provided with confined pressure cover (13) in the through hole, be provided with axial compression head (12) in the confined pressure cover (13), axial compression head (12) is provided with the push-down head (11) that is supported on rock sample body (7) lower end, and rock sample body (7) upper end is provided with seaming chuck (4); Be attached with thermofin (22) on the inwall of interior thick cyclinder (14); Be attached with the electrothermal alloy sheet (18) that is communicated with up and down on the excircle of seaming chuck (4) and axial compression head (12), be attached with insulated thermal insulating layer on the excircle of rock sample body (7); In the space that axial compression head (12) and push-down head (11) and interior thick cyclinder (14) are surrounded pyrophyllite powder (10) is housed down, in the space that rock sample body (7) and interior thick cyclinder (14) are surrounded Nacl (6) is housed, and a plurality of thermopairs (20) are housed; In the space that seaming chuck (4) and interior thick cyclinder (14) are surrounded pyrophyllite powder (5) is housed; Interior thick cyclinder (14) top is provided with the cover plate (3) of band copper electrode, and cover plate (3) is provided with the tapered plug (2) that thermocouple lead (1) is derived, and is furnished with water cooling copper pipe (8) on the excircle of outer thick cyclinder (15).
2. rock sample heating arrangement according to claim 1 is characterized in that: described insulated thermal insulating layer constitutes by being located at inside and outside interior mica paper layer (17) of electrothermal alloy sheet (18) and outer mica paper layer (19).
3. rock sample heating arrangement according to claim 1 is characterized in that: described thermofin (22) is a mica paper.
4. rock sample heating arrangement according to claim 1 is characterized in that: described heating layer (22) is the electrothermal alloy sheet.
5. rock sample heating arrangement according to claim 1 is characterized in that: electrothermal alloy sheet (18) outside on described seaming chuck (4) and push-down head (11) excircle is provided with the copper sheathing (16) with its banding.
6. rock sample heating arrangement according to claim 1 is characterized in that: thick cyclinder (14), outer thick cyclinder (15) adopt the casting of H13 steel in described.
Priority Applications (1)
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CN2009200492246U CN201548462U (en) | 2009-10-21 | 2009-10-21 | Triaxial rock sample heating device under pressure |
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CN2009200492246U CN201548462U (en) | 2009-10-21 | 2009-10-21 | Triaxial rock sample heating device under pressure |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102288493A (en) * | 2011-09-13 | 2011-12-21 | 中国矿业大学 | Organic rock mass containing high-temperature and high-pressure triaxial test device and method |
CN102419265A (en) * | 2011-09-13 | 2012-04-18 | 中国矿业大学 | Rock breaking experimental device under high temperature and high pressure condition |
CN104198291A (en) * | 2014-08-11 | 2014-12-10 | 太原理工大学 | Device for measuring radial deformation of rock test sample |
CN105300807A (en) * | 2015-10-14 | 2016-02-03 | 太原理工大学 | High-temperature true triaxial rock testing machine |
CN108593457A (en) * | 2018-05-30 | 2018-09-28 | 中国矿业大学 | A kind of coal petrography high temperature and pressure deformation testing device and test method |
CN108693315A (en) * | 2018-05-30 | 2018-10-23 | 中国矿业大学 | Multifunctional high-temperature high pressure displacement in situ and mining simulation experiment system and test method |
CN111692768A (en) * | 2020-05-12 | 2020-09-22 | 周尚生 | Shallow geothermal energy utilization device and use method thereof |
CN112229739A (en) * | 2020-09-30 | 2021-01-15 | 太原理工大学 | High-temperature high-pressure rock triaxial experimental device matched with CT (computed tomography) online scanning |
CN112284920A (en) * | 2020-10-21 | 2021-01-29 | 中国矿业大学(北京) | Rock high-temperature compression test device and test method |
-
2009
- 2009-10-21 CN CN2009200492246U patent/CN201548462U/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102288493A (en) * | 2011-09-13 | 2011-12-21 | 中国矿业大学 | Organic rock mass containing high-temperature and high-pressure triaxial test device and method |
CN102419265A (en) * | 2011-09-13 | 2012-04-18 | 中国矿业大学 | Rock breaking experimental device under high temperature and high pressure condition |
CN102288493B (en) * | 2011-09-13 | 2013-01-02 | 中国矿业大学 | Organic rock mass containing high-temperature and high-pressure triaxial test device and method |
CN102419265B (en) * | 2011-09-13 | 2014-03-05 | 中国矿业大学 | Rock breaking experimental device under high temperature and high pressure condition |
CN104198291B (en) * | 2014-08-11 | 2016-05-25 | 太原理工大学 | A kind of device of measuring rock sample radial deformation |
CN104198291A (en) * | 2014-08-11 | 2014-12-10 | 太原理工大学 | Device for measuring radial deformation of rock test sample |
CN105300807A (en) * | 2015-10-14 | 2016-02-03 | 太原理工大学 | High-temperature true triaxial rock testing machine |
CN108593457A (en) * | 2018-05-30 | 2018-09-28 | 中国矿业大学 | A kind of coal petrography high temperature and pressure deformation testing device and test method |
CN108693315A (en) * | 2018-05-30 | 2018-10-23 | 中国矿业大学 | Multifunctional high-temperature high pressure displacement in situ and mining simulation experiment system and test method |
CN108593457B (en) * | 2018-05-30 | 2020-06-09 | 中国矿业大学 | Coal rock high-temperature high-pressure deformation test device and test method |
CN108693315B (en) * | 2018-05-30 | 2020-09-29 | 中国矿业大学 | In-situ multifunctional high-temperature high-pressure displacement and drainage-mining simulation test system and test method |
CN111692768A (en) * | 2020-05-12 | 2020-09-22 | 周尚生 | Shallow geothermal energy utilization device and use method thereof |
CN112229739A (en) * | 2020-09-30 | 2021-01-15 | 太原理工大学 | High-temperature high-pressure rock triaxial experimental device matched with CT (computed tomography) online scanning |
CN112229739B (en) * | 2020-09-30 | 2023-03-24 | 太原理工大学 | High-temperature high-pressure rock triaxial experimental device matched with CT (computed tomography) online scanning |
CN112284920A (en) * | 2020-10-21 | 2021-01-29 | 中国矿业大学(北京) | Rock high-temperature compression test device and test method |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111021 |