Thermodynamic coupling device based on uniaxial compression experiment system and testing method
By using automated temperature control and a high-low temperature separated experimental chamber, combined with liquid nitrogen cold air and high-temperature hot air circulation, the data error problem of the uniaxial compression tester under extreme temperature differences has been solved, realizing the accuracy of high temperature difference experiments and data transmission, which is suitable for uniaxial compression research of rocks.
Patent Information
- Application Number
- CN202510952615.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-12-19
AI Technical Summary
Conventional uniaxial compression testing equipment cannot accurately reflect the real-time effects on specimens at high or low temperatures, and cannot function properly under extreme temperature differences. Existing technology cannot perform high temperature difference experiments, resulting in large errors in experimental results.
It adopts an automated temperature control console, liquid nitrogen cold air circulation and high temperature hot air circulation system, combined with a high and low temperature separated experimental chamber and a polymer thermal insulation rubber block to achieve sensitive and automated temperature control, adapt to extreme temperature difference experiments, and transmit acoustic emission signals through a high temperature resistant waveguide rod.
Extreme temperature difference experiments were achieved in the range of -196℃ to 800℃, which reduced the impact of thermal shock, improved the accuracy of experimental data and environmental adaptability, and is suitable for the study of uniaxial compression of rocks under special working conditions.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of uniaxial compression experimental instrument equipment, in particular, especially relates to a thermal coupling device and test method based on a uniaxial compression experimental system. BACKGROUND
[0002] The uniaxial compression tester is a special equipment for testing the mechanical properties of materials under uniaxial compression, which measures the stress-strain relationship, compressive strength, elastic modulus and other parameters of materials under compression by applying vertical compression load.
[0003] However, the conventional uniaxial compression tester can only obtain the related parameters of the test piece at room temperature. If the related test pieces under high temperature or low temperature are needed, the test pieces need to be subjected to additional temperature rising and falling treatment in advance. In the process of transferring to the uniaxial compression tester, the test pieces will experience obvious thermal shock, and the real-time influence of high and low temperature on the test pieces cannot be accurately reflected. In addition, under certain special working conditions, there will be obvious temperature difference in the rock mass. The existing technology and equipment cannot well realize this high temperature difference experiment. The conventional acoustic emission monitoring cannot work normally under extreme temperature difference, which causes certain delay in the research of related fields.
[0004] Therefore, it is urgent to provide a thermal coupling device and test method based on a uniaxial compression experimental system to solve the technical problems in the prior art. SUMMARY
[0005] According to the technical problems mentioned in the above background art, a thermal coupling device and test method based on a uniaxial compression experimental system are provided. The present application has the experimental advantages of sensitive induction, automatic temperature control, adjustable speed, large temperature difference, etc. and provides a solution for acoustic emission signal monitoring under extreme temperature difference. The modular design is simple to install and has strong environmental adaptability. The temperature range is theoretically-196℃~800℃, which can meet the engineering and scientific research needs of rock uniaxial compression under extremely high temperature difference.
[0006] The technical means adopted by the present application are as follows: A thermal coupling device based on a uniaxial compression experimental system, comprising: an automatic temperature control console, a high and low temperature heat conduction system and a high and low temperature separation experiment box; The high and low temperature heat conduction system comprises: liquid nitrogen cold air circulation and high temperature hot air circulation; the high and low temperature heat conduction system is arranged in the high and low temperature separation experiment box; and the automatic temperature control console is arranged at the top of the high and low temperature separation experiment box. The high-low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor; the test piece is in soft contact with the prefabricated high-molecular temperature insulation rubber block; the test piece in soft contact with the prefabricated high-molecular temperature insulation rubber block is inserted into the high-low temperature separation experiment box, and the single-axis compression test instrument experiment area is divided into two spaces on the left and right from the middle; the two spaces are both provided with air inlets and air returns; the two spaces are both provided with a plurality of temperature sensors; and the main body shell is further provided with an observation window.
[0007] Further, the middle is divided into two spaces which are symmetrically distributed.
[0008] Further, the automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC.
[0009] Further, the high-temperature hot air circulation device comprises a heating element, a high-temperature hot air temperature insulation pipe and a fan; air is heated by the heating element, and the fan continuously sends hot air into the circulating pipeline; the hot air enters the high-temperature half area of the high-low temperature separation experiment box from the high-temperature hot air temperature insulation pipe connected to the air inlet, exchanges heat here, and returns to the fan area from the high-temperature hot air temperature insulation pipe connected to the air return, and the hot air is continuously circulated.
[0010] Further, the liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank, the electronic throttle valve is arranged near the gas outlet of the air compressor, the fan continuously sends cold air into the circulating pipeline, the cold air enters the low-temperature half area of the high-low temperature separation experiment box from the liquid nitrogen cold air temperature insulation pipe connected to the air inlet, exchanges heat here, and returns to the fan area from the liquid nitrogen cold air temperature insulation pipe connected to the air return, and the cold air is continuously circulated in this way.
[0011] Further, the automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to the experimental scheme.
[0012] The application also comprises a thermal coupling device test method based on a single-axis compression experiment system, comprising the following steps: Step 1, assemble the experiment platform completely, start the automatic temperature control console to retrieve whether the related sensors and electronic throttle valves can normally operate, that is, whether there is feedback data display; Step 2, align the to-be-tested piece and the upper and lower extended loading rods based on the center of a circle, place the experimental area of the uniaxial compression tester, and start the uniaxial compression tester to pre-load to the visual contact of the hydraulic rod and the extended loading rod; at this time, the high-molecular thermal insulation rubber is adjusted to fit the side of the test piece, the gap between the two contact surfaces is filled with thermal insulation silicone, and at this time, the left and right two closed spaces are formed; Step 3, adjust the temperature rising and falling rate and the predetermined temperature on the automatic temperature control console according to the experimental scheme, start the high-temperature hot air circulation or liquid nitrogen cold air circulation in turn, and measure the heat conduction time of the predetermined temperature difference in the test piece formed by the built-in thermocouple before the formal experiment, replace the normal test piece and run to the heat conduction time, immediately carry out the uniaxial compression process, at this time, the ring-shaped soft contact of the high-molecular thermal insulation rubber blocks the temperature conduction on both sides while not affecting the related data of the uniaxial compression, and the acoustic emission signal is transmitted through the high-temperature waveguide rod.
[0013] Compared with the prior art, the present application has the following advantages: The present application provides an experimental device for realizing uniaxial compression of rock under extremely high temperature difference, which has the advantages of sensitive induction, automatic temperature control, adjustable rate, large temperature difference, etc. The device is modularized, easy to install, and has strong environmental adaptability. It can realize related experiments of uniaxial compression of rock under extremely high temperature difference in special conditions. The temperature range is theoretically-196℃~800℃. The problem of needing additional equipment for changing high and low temperature states in the conventional uniaxial compression process is solved. In addition, the problem of errors caused by heat shock during the transfer process is solved. The accuracy of the related data obtained by the uniaxial compression of the test piece under high and low temperature states is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0015] Fig. 1 It is the overall orthographic view of the present application.
[0016] Fig. 2 It is the front view of the integrated device box of the present application.
[0017] Fig. 3 It is the orthographic view and front view of the working state of the high and low temperature separation experiment box of the present application.
[0018] Fig. 4 It is the overall side view and B-B sectional view of the working state of the high and low temperature separation experiment box of the present application.
[0019] Fig. 5 It is the core component schematic diagram of high and low temperature separation experiment box of the present application.
[0020] Fig. 6 It is the front isometric view and A-A sectional view of the high and low temperature separation experiment box body of the present application.
[0021] Among them, 1, automatic temperature control console; 2, device box; 3, high and low temperature separation experiment box of working state; 4, extension loading rod; 5, sample to be tested; 6, high temperature waveguide rod; 7, pre-set high molecular temperature insulation rubber block; 8, pre-set temperature insulation block; 9, high temperature hot air circulation temperature insulation pipe; 10, liquid nitrogen cold air temperature insulation pipe; 11, universal wheel; 12, box door. DETAILED DESCRIPTION
[0022] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.
[0023] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0024] As Figs. 1-6 shown, the present application provides a thermal coupling device and testing device based on single-axis compression experiment system, comprising: automatic temperature control console 1, high and low temperature heat conduction system, high and low temperature separation experiment box.
[0025] The automatic temperature control console 1 and the related equipment such as gas storage tank are integrated into the integrated device box 2, and the feedback information of each temperature, pressure and flow sensor in the whole process is uniformly collected and processed, so as to realize real-time feedback and accurate control of the whole process.
[0026] The high-low temperature heat conduction system mainly comprises a refrigeration system and a heating system, and the output power is uniformly adjusted through an automatic temperature control console, thereby controlling the temperature rising and falling rate and the temperature rising and falling range.
[0027] The heating system device mainly comprises a high-temperature hot air circulation, mainly including a heating element, a high-temperature hot air circulation temperature insulation pipe 9 and the like.
[0028] The refrigeration system mainly comprises a liquid nitrogen cold air circulation, mainly including a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe 10, an electronic throttle valve and the like core device.
[0029] The high-low temperature separation experiment box 3 main body shell is composed of high-strength temperature insulation components, wherein a temperature insulation block 8 and a preset high-molecular temperature insulation rubber block 7 are combined in the middle of the box, thereby separating the single-axis testing instrument experiment area into two spaces, the high-molecular temperature insulation rubber 7 is in ring contact with the surface of the test piece 5, and the two separated spaces are symmetrically distributed and uniformly distributed with temperature and pressure sensors inside.
[0030] The high-low temperature separation experiment box 3 uses a heating body embedded steel glass to set an observation window, under the precise adjustment of the automatic temperature control console 1, the temperature rising and falling rate and the target temperature are adjusted by the high-low temperature heat conduction system, thereby realizing two different high-temperature difference spaces, and the heat conduction time is controlled by means of thermal imaging and the like, so that the test piece forms a temperature difference inside under the heat transfer of the high-low temperature space, so as to carry out related research.
[0031] In summary, the application provides a thermal coupling device and test method based on a single-axis compression experiment system, and the working principle is as follows: first, the experiment platform is assembled complete, the automatic temperature control console 1 is started to search whether the related sensors and electronic throttle valves are normal, the test piece to be tested and the upper and lower extension loading rods are connected and fixed, the single-axis compression testing instrument is placed in the predetermined position, the single-axis compression testing instrument is started to be preloaded to basically stick to the loading rod, at this time, the high-molecular temperature insulation rubber 7 is adjusted to stick to the side of the test piece, and part of the gap is filled with temperature insulation silicone grease, at this time, the left and right two closed spaces are formed, the temperature rising and falling rate and the predetermined temperature are adjusted according to the experiment plan in the automatic temperature control console 1, the system is started to start the high-temperature hot air circulation or the liquid nitrogen cold air circulation, through a period of system operation, a high temperature difference is formed in the two spaces, the heat conduction time is determined by combining the thermal imaging technology, when a relatively stable high temperature difference is formed in the test piece, the single-axis compression process is immediately carried out, at this time, the ring contact of the high-molecular temperature insulation rubber blocks the temperature conduction between the two sides while not affecting the related data of the single-axis compression, and the acoustic emission signal is transmitted through the high-temperature resistant waveguide rod 6.
[0032] It should be noted that in order to more comprehensively show the core idea and key components of the present application, the connection of the pipeline is simplified in the related drawings to highlight the key points. Through the thermal coupling device and test method based on a single-axis compression experiment system proposed in the present application, the related experiments of high temperature difference rock uniaxial compression under special working conditions can be realized, and the temperature range is theoretically-196 DEG C to 800 DEG C, so as to carry out the research in the related field.
[0033] The above-mentioned embodiment numbers of the present application are only for description, not representing the advantages and disadvantages of the embodiments. In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments. In the several embodiments provided in the present application, it should be understood that the disclosed technical contents can be realized by other ways.
[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A thermal coupling device based on a uniaxial compression experiment system, characterized in that, The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed.
2. The thermal coupling device based on a single-axis compression experimental system according to claim 1, characterized in that, The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC.
3. The thermal coupling device based on a single-axis compression experimental system according to claim 1, characterized in that, The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan.
4. The thermal coupling device based on a single-axis compression experimental system according to claim 1, characterized in that, The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan.
5. The thermal coupling device based on a single-axis compression experimental system according to claim 1, characterized in that, The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme.
6. The thermal coupling device based on a single-axis compression experimental system according to claim 1, characterized in that, The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system.
7. A method for testing a thermomechanical coupling device based on a uniaxial compression experimental system, using the device according to any one of claims 1 to 6, characterized in that, The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and low temperature separation experiment box comprises a main body shell, a prefabricated temperature insulation block, an air inlet, an air return, an observation window and a temperature sensor. The two spaces are symmetrically distributed. The automatic temperature control console realizes automatic control of the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate through PLC. The high temperature hot air circulation device comprises a heating element, a high temperature hot air temperature insulation pipe and a fan. The liquid nitrogen cold air circulation device comprises a liquid nitrogen high-pressure low-temperature storage tank, a low-temperature nitrogen relay storage tank, an air compressor, a liquid nitrogen cold air temperature insulation pipe, an electronic throttle valve and a fan. The liquid nitrogen in the liquid nitrogen high-pressure low-temperature storage tank is slowly released into the low-temperature nitrogen relay storage tank. The automatic temperature control console preliminarily sets the output power of the heating element, the fan speed, the liquid nitrogen injection flow and the liquid nitrogen injection rate according to an experimental scheme. The utility model relates to a high and low temperature separation experiment box, and automatic temperature control console, high and low temperature heat conduction system. The high and low temperature heat conduction system comprises liquid nitrogen cold air circulation and high temperature hot air circulation, and is arranged in the high and low temperature separation experiment box. The high and Step 3, according to the experimental scheme in the automatic temperature control console to adjust the temperature rising and falling rate and the predetermined temperature, in turn start high temperature hot air circulation or liquid nitrogen cold air circulation, before the formal experiment, first use the thermocouple embedded in the sample to measure the heat conduction time of the predetermined temperature difference in the sample, replace the normal sample and run to the heat conduction time during the formal experiment, immediately carry out the uniaxial compression process, at this time, the circumferential soft contact of the polymer temperature insulation rubber blocks the temperature conduction between the two sides while not affecting the relevant data of uniaxial compression, and the acoustic emission signal transmits data through the high-temperature waveguide rod.