CN117250223B - Device for measuring transverse heat conductivity coefficient of rock sample - Google Patents
Device for measuring transverse heat conductivity coefficient of rock sample Download PDFInfo
- Publication number
- CN117250223B CN117250223B CN202311527831.XA CN202311527831A CN117250223B CN 117250223 B CN117250223 B CN 117250223B CN 202311527831 A CN202311527831 A CN 202311527831A CN 117250223 B CN117250223 B CN 117250223B
- Authority
- CN
- China
- Prior art keywords
- rock sample
- pressure
- confining pressure
- piece
- heat conduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 103
- 238000005259 measurement Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 17
- 239000002927 high level radioactive waste Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 8
- WABPQHHGFIMREM-FTXFMUIASA-N lead-202 Chemical compound [202Pb] WABPQHHGFIMREM-FTXFMUIASA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
Abstract
Embodiments of the present application relate to testing or analyzing materials by measuring thermal variations, and in particular to an apparatus for lateral thermal conductivity measurement of a rock sample that can measure lateral thermal conductivity of a rock sample under pressure, the apparatus comprising: a confining pressure assembly and a heat conduction measurement assembly. The confining pressure assembly is arranged to apply pressure to the rock sample; the heat conduction measurement assembly is arranged to measure the lateral heat conductivity of the rock sample when the confining pressure assembly applies pressure to the rock sample; wherein a portion of the heat conduction measurement assembly is disposed within the confining pressure assembly and is capable of communication connection with an exterior of the confining pressure assembly. The device provided by the embodiment of the application can test the transverse heat conductivity coefficient of the rock sample in the confining pressure process in real time through the heat conduction measurement assembly, so that the relationship between the transverse heat conductivity coefficient of the rock sample and the pressure, deformation and temperature of the rock sample received by the rock sample can be analyzed conveniently, and data support is provided for high level waste disposal.
Description
Technical Field
Embodiments of the present application relate to testing or analyzing materials by measuring changes in heat, and in particular to an apparatus for lateral thermal conductivity measurement of rock samples.
Background
In the thermal properties of rock, the thermal conductivity is a key parameter describing the heat transfer capacity of the rock. In the process of disposing high level waste, confining pressure is continuously changed; meanwhile, heat of high-level waste treatment is mainly transmitted in a direction perpendicular to an excavation surface, so how to accurately evaluate the heat conductivity coefficient of rock under different confining pressure conditions in the direction is a major concern in the field of high-level waste treatment engineering at present.
Currently, the measurement of the thermal conductivity of rock under pressure is usually performed by a uniaxial test, which enables the measurement of the thermal conductivity of rock when uniaxial stress is applied, but there is no way to measure the thermal conductivity of rock when triaxial stress is applied.
Disclosure of Invention
In view of at least one aspect of the above technical problem, embodiments of the present application provide an apparatus for measuring lateral thermal conductivity of a rock sample, which may measure lateral thermal conductivity of the rock sample while the rock sample is under pressure, the apparatus comprising: a confining pressure assembly and a heat conduction measurement assembly. The confining pressure assembly is arranged to apply pressure to the rock sample; the heat conduction measurement assembly is arranged to measure the lateral heat conductivity of the rock sample when the confining pressure assembly applies pressure to the rock sample; wherein a portion of the heat conduction measurement assembly is disposed within the confining pressure assembly and is capable of communication connection with an exterior of the confining pressure assembly.
The device provided by the embodiment of the application can test the transverse heat conductivity coefficient of the rock sample in the confining pressure process in real time through the heat conduction measurement assembly, so that the relationship between the transverse heat conductivity coefficient of the rock sample and the pressure, deformation and temperature of the rock sample received by the rock sample can be analyzed conveniently, and data support is provided for high level waste disposal.
Drawings
Other objects and advantages of the present application will become apparent from the following description of the embodiments thereof, which is to be read in connection with the accompanying drawings, and may be set forth a full understanding of the present application.
Fig. 1 is a schematic structural view of a measuring device of an embodiment of the present application.
Fig. 2a is a schematic perspective view of a second pressure member of the measuring device of an embodiment of the present application.
Fig. 2b is a schematic bottom view of a second pressure member of the measuring device of the embodiment of the present application.
Fig. 2c is a schematic cross-sectional view of a second pressure member of a measuring device of an embodiment of the present application.
Fig. 3 is a schematic structural view of a chassis of the measuring device of the embodiment of the present application.
Fig. 4 is a schematic structural view of a base of the measuring device of the embodiment of the present application.
FIG. 5 is a schematic illustration of the connection of the base of the measuring device to the chassis of an embodiment of the present application.
Fig. 6 is a schematic structural view of a heat conduction measurement assembly of a measurement apparatus of an embodiment of the present application.
FIG. 7 is a schematic illustration of the connection of the confining pressure chamber to the chassis of the measuring device of an embodiment of the application.
Reference numerals illustrate:
1. a measuring device; 2. an axial extensometer; 3. a lateral extensometer; 4. a rock sample;
10. a confining pressure assembly; 101. a confining pressure chamber; 1011. an axial piston; 1012. a groove; 102. a first pressure member; 1021. a guide ring; 103. a second pressure member; 1031. a receiving groove; 1032. a groove; 104. a base; 1041. a first column; 1042. a second column member; 1043. a first space; 105. a chassis; 1051. a first disc; 1052. a second disc; 1053. a second space; 10511. a first columnar structure; 10512. a second column structure; 106. a clamping block;
20. a heat conduction measurement assembly; 201. a heat conduction measurement member; 202. a wire; 203. a thermally conductive connection.
It should be noted that the drawings are not necessarily to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It will be apparent that the described embodiments are one embodiment of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without the benefit of the present disclosure, are intended to be within the scope of the present application based on the described embodiments.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which this application belongs. If, throughout, reference is made to "first," "second," etc., the description of "first," "second," etc., is used merely for distinguishing between similar objects and not for understanding as indicating or implying a relative importance, order, or implicitly indicating the number of technical features indicated, it being understood that the data of "first," "second," etc., may be interchanged where appropriate. If "and/or" is present throughout, it is meant to include three side-by-side schemes, for example, "A and/or B" including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. Furthermore, for ease of description, spatially relative terms, such as "above," "below," "top," "bottom," and the like, may be used herein merely to describe the spatial positional relationship of one device or feature to another device or feature as illustrated in the figures, and should be understood to encompass different orientations in use or operation in addition to the orientation depicted in the figures.
In order to measure the lateral thermal conductivity of rock, providing data support for high level waste disposal, embodiments of the present application provide a device for lateral thermal conductivity measurement of rock samples that can measure the lateral thermal conductivity of rock samples while the rock samples are under pressure. As shown in fig. 1, which shows a schematic structural diagram of a measurement device 1 of an embodiment of the present application, the device comprises: a confining pressure assembly 10 and a heat conduction measurement assembly 20. The confining pressure assembly 10 is arranged to apply pressure to the rock sample 4; the heat conduction measurement assembly 20 is arranged to measure the lateral thermal conductivity of the rock sample 4 when the confining pressure assembly 10 applies pressure to the rock sample 4; wherein a portion of the heat transfer measurement assembly 20 is disposed within the confining pressure assembly 10 and is capable of communicating with the exterior of the confining pressure assembly 10.
The device provided by the embodiment of the application can test the transverse heat conductivity coefficient of the rock sample in the confining pressure process in real time through the heat conduction measurement assembly, so that the relationship between the transverse heat conductivity coefficient of the rock sample and the pressure, deformation and temperature of the rock sample received by the rock sample can be analyzed conveniently, and data support is provided for high level waste disposal.
In some embodiments, the rock sample 4 may be prepared by cutting a rock sample. The rock sample can be a cylindrical standard rock sample with the height-diameter ratio of 2-2.5:1; the rock sample can be cut along the axial direction when being cut, the chord length of the cutting line on the end face of the rock sample is slightly smaller than the diameter of the rock sample, and the cutting line divides the diameter perpendicular to the cutting line into two parts of 3:2, so that the rock sample 4 is obtained.
The method for preparing the rock sample 4 can meet the installation requirements of the transverse extensometer 3 and the axial extensometer 2, can ensure that the heat conduction measuring piece 201 is arranged in the rock sample 4, and can also meet the size requirements of the heat conduction measuring piece 201 on the rock sample.
The confining pressure assembly 10 may include a confining pressure chamber 101, a first pressure member 102, a second pressure member 103, the first pressure member 102 and the second pressure member 103 being disposed within the confining pressure chamber 101, the rock sample 4 being located within the confining pressure chamber 101 and between the first pressure member 102 and the second pressure member 103. When the device is used, the confining pressure chamber 101 can be filled with confining pressure oil.
As shown in fig. 1 and 6, fig. 6 shows a schematic structural diagram of a heat conduction measurement assembly of a measurement device according to an embodiment of the present application, and the heat conduction measurement assembly 20 may include a heat conduction measurement member 201, a wire 202, and a heat conduction connection member 203, where the heat conduction measurement member 201 is connected to the wire 202 through the heat conduction connection member 203. Wherein a heat conducting measurement member 201 is arranged in the rock sample 4, a heat conducting connection member 203 is arranged in the second pressure member 103, and a part of the wire 202 is arranged outside the confining pressure chamber 101.
In the related art, a transient plane heat source method is mostly adopted for testing the heat conductivity coefficient of the rock under the pressure condition, and the method can be divided into a single-sided method and a double-sided method. When the thermal conductivity is measured by a single-sided method, the material with lower thermal conductivity is needed to assist, and the heat isolation performance of the material is reduced in a triaxial pressure state, so that the measurement of the thermal conductivity fails; in addition, even if the heat insulating performance of the material with low thermal conductivity is not reduced in the triaxial pressure state, the single-sided method also affects the sealing effect of the sample, resulting in failure in measurement of the thermal conductivity.
In embodiments of the present application, a double sided method may be selected to measure the thermal conductivity of the rock sample 4. When the double-sided method is applied to measure the thermal conductivity of the rock sample 4, the thermal conductivity measurement member 201 may be disposed within the rock sample 4, with the thermal conductivity measurement member 201 being subjected only to the pressure transmitted from the confining pressure oil to the rock sample, and not to the vertical axial pressure. The sealing performance of the rock sample 4 is not affected, and the transverse heat conductivity coefficient of the rock sample 4 can be measured under the triaxial pressure state.
During the test, both the confining pressure chamber 101 and the rock sample 4 are in a sealed state, so the position of the heat conduction measurement assembly 20 should not affect the tightness of both. In selecting the position of the wire 202, the wire 202 cannot pass through the seal of the rock sample 4 and cannot be exposed to the confining pressure environment in the confining pressure chamber 101, otherwise the wire 202 would be subjected to confining pressure and damage the signal transmission; meanwhile, since the first pressure member 102 is subjected to pressure in the test, the lead 202 cannot be disposed in the first pressure member 102. Accordingly, the heat conducting wires can be arranged in the second pressure piece 103, the base 104 and the chassis 105, and meanwhile, the wires 202 can be led out of the confining pressure chamber through the holes arranged on the chassis 105, so that the influence of confining pressure on the wires 202 is avoided.
In some embodiments, an axial piston 1011 is provided at the upper end of the confining pressure chamber 101.
In some embodiments, the first pressure member 102 may be provided with a guide ring 1021, when the confining pressure chamber 101 is lowered, the guide ring 1021 may abut against the axial piston 1011 of the confining pressure chamber 101, so as to ensure that the applied pressure acts on the axial position of the first pressure member 102, so as to make the stress uniform.
In some embodiments, the thermal conductivity measurement assembly may include a thermal conductivity measurement device for measuring the lateral thermal conductivity of the rock sample 4.
The first pressure member 102, the rock sample 4 and the second pressure member 103 may be cylindrical members. As shown in fig. 2a, 2b and 2c, which show schematic structural views of a second pressure member of the measuring device according to the embodiment of the present application, a receiving groove 1031 is opened at a radial 3:2 position of the second pressure member 103, a heat conduction connection member 203 is received, and a heat conduction measurement member 201 protrudes from a surface of the second pressure member 103.
In some embodiments, the receiving groove 1031 may be coplanar with the cutting location of the rock sample 4. The second pressure member 103 may be slotted 1031 at a radial 3:2 position to accommodate the thermally conductive connection 203. The position of the receiving groove 1031 is in the same plane as the cutting position of the rock sample 4, so that the bearing capacity of the second pressure piece 103 on the rock sample 4 can be ensured, and the heat conduction connecting piece 203 can be protected from being influenced by confining pressure.
In some embodiments, the receiving groove 1031 may be a through passage of a rectangular parallelepiped.
In some embodiments, a plurality of anti-slip structures extending along the extending direction of the receiving groove 1031 may be disposed on the wall of the second pressure member 103 forming the receiving groove 1031, so as to prevent the heat conductive connecting member 203 from sliding out of the receiving groove 1031 during the test, thereby affecting the measurement of the heat conductivity coefficient.
As shown in fig. 4, which illustrates a schematic structural diagram of the base 104 of the measuring device according to the embodiment of the present application, the base 104 may include a first column 1041 and a second column 1042.
In some embodiments, the confining pressure assembly 10 may further include a base 104, the second pressure member 103 is disposed on the base 104, the base 104 is located in the confining pressure chamber 101, a first space 1043 for passing the wire 202 is formed in the base 104, as shown in fig. 2a, 2b and 2c, a recess 1032 is formed at a position where the second pressure member 103 contacts the base 104, and the recess 1032 may receive a portion of the wire 202. In some embodiments, the first space may be a cylindrical through channel that matches the dimensions of the wire 202.
In some embodiments, the recess 1032 may be configured to receive a portion of the thermally conductive connector 203 that is coupled to the wire 202.
The groove 1032 can protect the connection part of the heat conduction connecting piece 203 and the lead 202, ensure the stability of connection, play a role in positioning in the base 104 and prevent the second pressure piece 103 and the base 104 from generating dislocation in the test process; at the same time, the volumes of the respective passages of the second pressure piece 103 and the base 104 can be minimized, and the bearing capacity of the base 104 and the second pressure piece 103 is ensured to the greatest extent.
As shown in fig. 3, which shows a schematic structural view of the chassis of the measuring device according to the embodiments of the present application, in some embodiments, the confining pressure assembly 10 may further include a chassis 105, the confining pressure chamber 101 is disposed on the chassis 105, the chassis 105 is formed with a second space 1053 through which the wire 202 passes, and the wire 202 is at least partially located outside the chassis 105.
In some embodiments, the chassis 105 may be fixed to a test stand.
In some embodiments, the base 104 may be bolted to the chassis 105.
In some embodiments, the centroids of the base 104, the second pressure member 103, the rock sample 4, and the first pressure member 102 may be on the same vertical line.
In some embodiments, a sealing ring may be disposed between the chassis 105 and the base 104, and the chassis 105 and the base 104 may be fixed by a bolt to compress the sealing ring, so as to ensure sealing between the chassis 105 and the base 104.
In some embodiments, the second space 1053 may be an "L" shaped through channel that matches the dimensions of the wire 202, the first space 1043.
As shown in fig. 5, which is a schematic diagram illustrating a connection relationship between a base and a chassis of the measuring device according to the embodiment of the present application, in some embodiments, the first space 1043 and the second space 1053 may be formed as an "L" shape, so that the wire 202 may reach the outside of the chassis 105 through the first space 1043 and the second space 1053, so as to avoid the wire from being squeezed when the hydraulic pump of the test stand below lifts the chassis 105.
Meanwhile, the "L" channel formed by the first space 1043 and the second space 1053 guides the wire 202 to the outside of the confining pressure chamber 101, and in some embodiments, the first space 1043 and the second space 1053 may be located directly below the groove 1032 of the second pressure member 103 for accommodating the heat conductive connector 203, so that the wire 202 connected to the heat conductive connector 203 may conveniently and directly enter the first space 1043 and the second space 1053, thereby avoiding the wire 202 from being bent and damaged to affect signal transmission.
In some embodiments, the first pressure member 102, the second pressure member 103, the rock sample 4, and the base 104 may be configured to have a seal around their exterior to ensure sealing of the rock sample 4 and the heat transfer measurement assembly 20 throughout the test.
In some embodiments, the seal may be a heat shrink tube.
As shown in fig. 7, which illustrates a schematic view of the connection of the confining pressure chamber to the chassis of the measuring device of embodiments of the present application, in some embodiments, confining pressure assembly 10 may further include a clamping block 106.
The chassis 105 may include a first plate 1051, a second plate 1052, the first plate 1051 formed with a first columnar structure 10511, and the first plate 1051 and the second plate 1052 formed with a second columnar structure 10512.
The base 104 is fixedly connected with the first columnar structure 10511, the confining pressure chamber 101 is sleeved outside the first columnar structure 10511, the confining pressure chamber 101 is provided with a groove 1012 at a part contacted with the first disc 1051, and the second columnar structure 10512 is positioned between the first disc 1051 and the second disc 1052 to form a space for placing the clamping block 106.
The clamping block 106 is arranged to be clamped between the space between the first disc 1051 and the second disc 1052 and the groove 1012, so that the confining pressure chamber 101 is fixedly connected with the chassis 105, and the confining pressure chamber 101 is prevented from being separated from the chassis 105 in the test process, so that the measurement of the heat conductivity coefficient is prevented from being influenced.
In the embodiments of the present application, the measuring device 1 provided in the embodiments of the present application can also be used for measuring the thermal conductivity of the rock sample 4, both in the axial extensometer 2 and in the lateral extensometer 3. The axial extensometer 2 and the lateral extensometer 3 may be installed at a middle position of the rock sample 4 for measuring axial deformation and lateral deformation of the rock sample 4.
The process of measuring the thermal conductivity of the rock sample 4 using the measuring device 1 provided in the embodiments of the present application will be described in detail below with reference to specific embodiments, and the measuring device used in the measuring process may be any measuring device 1 in the embodiments of the present application.
The measurement process may include the steps of:
cutting a cylindrical standard rock sample with the height-diameter ratio of 2-2.5:1 into two parts along the axial direction, wherein the chord length of a cutting line on the end face of the sample is slightly smaller than the diameter of the rock sample, and the cutting line divides the diameter perpendicular to the cutting line into two parts with the diameter of 3:2, so that a rock sample 4 is obtained.
Fixing the chassis 105 to the test stand, fixing the base 104 to the chassis 105 by bolts, and placing the second pressure member 103 on the base 104; connecting the heat conduction measuring piece 201, the lead 202 and the heat conduction connecting piece 203, leading the lead 202 out of the confining pressure chamber 101 through the first space 1043 and the second space 1053 in sequence, placing the heat conduction measuring piece 201 and the heat conduction connecting piece 203 along the direction of the containing groove 1031 of the second pressure piece 103, enabling the heat conduction measuring piece 201 to extend out of the surface of the second pressure piece 103, placing the heat conduction connecting piece in the containing groove 1031, and placing the junction between the heat conduction connecting piece 203 and the lead 202 and part of the lead 202 into the groove 1032; placing the rock sample 4 on the second pressure member 103, placing the heat conduction measurement member 201 in both parts of the rock sample 4, ensuring that the heat conduction measurement member 201 is in close proximity to the rock sample 4; the first pressure member 102 is placed on the rock sample 4 and the guide ring 1021 is placed on the first pressure member 102.
The sealing ring between the base 104 and the chassis 105 is fixed by bolts, and the base 104, the second pressure piece 103, the rock sample 4 and the first pressure piece 102 are sealed by sealing pieces after being placed.
An axial extensometer 2 and a lateral extensometer 3 are installed in the middle of the rock sample 4.
Lowering the confining pressure chamber 101, and enabling the first pressure piece 102 to be abutted with an axial piston 1011 of the confining pressure chamber 101 through a guide ring 1021; the triaxial compression tester is adopted to apply different pressure and temperature conditions to the rock sample 4, the heat conductivity coefficient of the rock sample 4 under different conditions is measured through the heat conduction measuring assembly 20, the axial stress, the axial strain and the transverse stress of the rock sample 4 are measured through the axial extensometer 2 and the transverse extensometer 3, and parameters such as confining pressure, temperature and the like in the test process are recorded.
It should also be noted that, in the embodiments of the present application, the features of the embodiments and the embodiments of the present application may be combined with each other to obtain new embodiments without conflict.
The above is only a specific embodiment of the present application, but the scope of the present application should not be limited thereto, and the scope of the present application should be determined by the scope of the claims.
Claims (6)
1. A device for measuring the lateral thermal conductivity of a rock sample, the device measuring the thermal conductivity of a rock sample using a double-sided method, the device measuring the lateral thermal conductivity of the rock sample while the rock sample is under pressure, the rock sample being prepared by cutting a rock sample; cutting along the axial direction when cutting rock sample, the diameter that the cutting line will be perpendicular to it falls into two parts of 3:2, obtains rock sample, its characterized in that includes:
a confining pressure assembly arranged to apply pressure to the rock sample;
a thermal conductivity measurement assembly arranged to measure a lateral thermal conductivity of the rock sample when the confining pressure assembly applies pressure to the rock sample;
wherein a portion of the heat conduction measurement assembly is disposed inside the confining pressure assembly and is capable of communication connection with the outside of the confining pressure assembly;
the confining pressure assembly comprises a confining pressure chamber, a first pressure piece and a second pressure piece, wherein the first pressure piece and the second pressure piece are arranged in the confining pressure chamber,
the rock sample being located within the confining pressure chamber and between the first pressure member and the second pressure member,
the heat conduction measurement assembly comprises a heat conduction measurement piece, a wire and a heat conduction connection piece, wherein the heat conduction measurement piece is connected with the wire through the heat conduction connection piece;
wherein the heat conduction measuring piece is arranged in two parts of the rock sample, the heat conduction measuring piece is clung to the rock sample, the heat conduction connecting piece is arranged in the second pressure piece, and one part of the wire is arranged outside the confining pressure chamber;
the first pressure member, the rock sample and the second pressure member are columns;
in the radial direction 3 of the second pressure member: 2 to form a space for accommodating the thermally conductive connector, the accommodating groove being located in the same plane as the cutting position of the rock sample and the thermally conductive measuring member protruding from the second pressure member surface;
a plurality of anti-slip structures extending along the extending direction of the accommodating groove are arranged on the wall of the second pressure piece forming the accommodating groove;
the confining pressure assembly further comprises a base, the second pressure piece is arranged on the base, and the base is positioned in the confining pressure chamber;
forming a first space in the base for the wires to pass through;
and the second pressure member is further formed with a groove at a position contacting the base, the groove being capable of accommodating a portion of the wire.
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the confining pressure assembly further comprises a chassis, the confining pressure chamber is arranged on the chassis, a second space for the wires to pass through is formed in the chassis, and the wires are at least partially located outside the chassis.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the first space and the second space are formed in an L shape.
4. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the first space and the second space are located directly below the receiving groove of the second pressure member, which receives the heat conductive connecting member.
5. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the first pressure member, the second pressure member, the rock sample and the base are arranged to be surrounded by a seal member at their outer portions.
6. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the device also comprises a clamping block;
the chassis comprises a first disk and a second disk, wherein the first disk is formed with a columnar structure, and a columnar structure is formed between the first disk and the second disk;
the base is fixedly connected with the columnar structure,
the confining pressure chamber is sleeved outside the columnar structure, a groove is arranged at the part of the confining pressure chamber, which is in contact with the first disk-shaped piece,
the clamping block is arranged to be clamped between the space between the first disc-shaped piece and the second disc-shaped piece and the groove, so that the confining pressure chamber is fixedly connected with the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311527831.XA CN117250223B (en) | 2023-11-16 | 2023-11-16 | Device for measuring transverse heat conductivity coefficient of rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311527831.XA CN117250223B (en) | 2023-11-16 | 2023-11-16 | Device for measuring transverse heat conductivity coefficient of rock sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117250223A CN117250223A (en) | 2023-12-19 |
| CN117250223B true CN117250223B (en) | 2024-02-23 |
Family
ID=89137235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311527831.XA Active CN117250223B (en) | 2023-11-16 | 2023-11-16 | Device for measuring transverse heat conductivity coefficient of rock sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117250223B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204789164U (en) * | 2015-07-10 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Testable rock coefficient of heat conductivity's conventional triaxial test device |
| CN106770449A (en) * | 2017-02-22 | 2017-05-31 | 中国地质调查局南京地质调查中心 | The measurement apparatus of rock thermal conductivity factor under high-temperature and high-pressure conditions |
| WO2017152473A1 (en) * | 2016-03-08 | 2017-09-14 | 中国科学院南海海洋研究所 | System and method for testing thermophysical properties of rock under high pressure condition |
| CN108051477A (en) * | 2017-12-28 | 2018-05-18 | 核工业北京地质研究院 | The measuring method of rock transverse direction thermal conductivity factor under a kind of Uniaxial Compression |
| CN112903740A (en) * | 2021-01-22 | 2021-06-04 | 中国石油大学(华东) | Device and method for measuring thermal expansion coefficient of rock under confining pressure |
-
2023
- 2023-11-16 CN CN202311527831.XA patent/CN117250223B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204789164U (en) * | 2015-07-10 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Testable rock coefficient of heat conductivity's conventional triaxial test device |
| WO2017152473A1 (en) * | 2016-03-08 | 2017-09-14 | 中国科学院南海海洋研究所 | System and method for testing thermophysical properties of rock under high pressure condition |
| CN106770449A (en) * | 2017-02-22 | 2017-05-31 | 中国地质调查局南京地质调查中心 | The measurement apparatus of rock thermal conductivity factor under high-temperature and high-pressure conditions |
| CN108051477A (en) * | 2017-12-28 | 2018-05-18 | 核工业北京地质研究院 | The measuring method of rock transverse direction thermal conductivity factor under a kind of Uniaxial Compression |
| CN112903740A (en) * | 2021-01-22 | 2021-06-04 | 中国石油大学(华东) | Device and method for measuring thermal expansion coefficient of rock under confining pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117250223A (en) | 2023-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5435187A (en) | End-cap-to-piston coupling for triaxial test apparatus | |
| US5025668A (en) | Cell for the triaxial stress testing of a rock sample and a testing method using such a cell | |
| US6591690B1 (en) | Material testing machine with dual test space and integral axisymmetric triaxial measurement system | |
| CN107941615B (en) | Triaxial test machine and test system | |
| US4561289A (en) | Perforated end plug plate for testing core samples | |
| CN110082214B (en) | Sandstone oil and gas well casing string simulation test device and evaluation method thereof | |
| CN104913976A (en) | Temperature-controllable rock uniaxial compression sound emission test device and temperature-controllable rock uniaxial compression sound emission test method | |
| CN110927212A (en) | Testing device for thermal conductivity and contact thermal resistance of gas diffusion layer in compression state | |
| CN117250223B (en) | Device for measuring transverse heat conductivity coefficient of rock sample | |
| KR20050014568A (en) | Instrumented capsule for nuclear fuel irradiation test in research reactor | |
| CN211453275U (en) | Soft rock damage failure instability and dynamic permeability characteristic basic data acquisition device | |
| CN108593884A (en) | Wheeled THMC- rocks multifunction test instrument and wheeled rock test method | |
| CN107505213A (en) | A kind of new small punch test device and its test method | |
| US3577883A (en) | Capacitive strain sensor | |
| CN112595366A (en) | Integrated temperature and pressure measuring device | |
| US3471758A (en) | Capacitive strain sensor | |
| CN105445501A (en) | Electric detecting device for environmental testing | |
| CN210952924U (en) | Sensing device | |
| CN210347466U (en) | Raman probe cold and hot table and gas environment testing cavity assembly thereof | |
| CN113916647A (en) | Rock fracture shearing seepage coupling test device and test method thereof | |
| CN213956467U (en) | Integrated temperature and pressure measuring device | |
| CN220251804U (en) | Three-in-one integrated electrode | |
| US20220326136A1 (en) | Distributed pressure measurement system for core flood experiments | |
| CN211877834U (en) | Testing device for thermal conductivity and contact thermal resistance of gas diffusion layer in compression state | |
| CN219414457U (en) | Temperature compensation's monomer formula supersound on-line monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |