A solid-liquid-gas three-phase thermal cycle experimental device and experimental method

Abstract

The present application discloses a solid-liquid-gas three-phase thermal cycle experimental device and an experimental method. The solid-liquid-gas three-phase thermal cycle experimental device includes a sample carrying platform, a sample lifting device, a heating furnace and a cooling component. Among them, the sample carrying platform is used to load the sample, and the sample lifting device is used to drive the sample to rise and fall and enter the heating furnace or cooling component. The heating furnace is used to heat the sample, and the cooling component is used to cool the sample. The present application uses the sample lifting device to drive the bracket to enter the heating furnace and the cooling tank. After the sample in the bracket is heated in the heating furnace, it quickly enters the cooling tank for cooling, thereby reducing heat loss during the movement of the sample. Moreover, baffles are provided on the top and bottom of the bracket. When the sample is heated in the heating furnace, the baffles prevent heat loss. When the sample is cooled in the cooling tank, the baffles prevent cold loss, thereby improving the accuracy of the experimental results. The present application relates to the technical field of high-temperature-related engineering disasters.

Description

Technical Field

[0001] The present application relates to the technical field of high-temperature related engineering disasters, and in particular to a solid-liquid-gas three-phase thermal cycle experimental device and experimental method. Background Art

[0002] As human engineering activities continue to expand into extreme environments, thermal cycling has become a crucial topic in the study of material and structural performance. Thermal cycling generally refers to the temperature fluctuations experienced by a material or structure during repeated heating and cooling. The thermal stresses and deformations caused by these temperature fluctuations can lead to the initiation and propagation of microcracks, thereby affecting the physical and mechanical properties of the material. Consequently, thermal cycling experiments are becoming increasingly important in fields such as aerospace, energy development, electronics manufacturing, and geotechnical engineering.

[0003] Currently, thermal cycling experiments on materials remain largely theoretical. The core challenge of thermal cycling experiments is how to quickly cool materials after heating them. Furthermore, to achieve more accurate experimental results, both heating and cooling temperatures must be precisely controlled. However, heat transfer between the heat source and cooling source in the experimental setup inevitably affects the experimental results.

[0004] Therefore, there is an urgent need for a thermal cycling experimental device and experimental method that can quickly heat and cool the material being tested and can accurately control the heating temperature and cooling temperature. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a solid-liquid-gas three-phase thermal cycle experimental device that can rapidly heat and cool the material under test and can precisely control the heating and cooling temperatures.

[0006] The present application also proposes an experimental method having the above-mentioned solid-liquid-gas three-phase thermal cycle experimental device.

[0007] The solid-liquid-gas three-phase thermal cycle experimental device according to the first embodiment of the present application includes:

[0008] A sample carrying platform comprises a bracket, a first baffle and a second baffle, wherein the first baffle is arranged on the top of the bracket and the second baffle is arranged on the bottom of the bracket, and the bracket is used to fix the sample;

[0009] a sample lifting device connected to the bracket and driving the bracket to move in a vertical direction;

[0010] A heating furnace is provided with a heating channel, the bracket can pass through the heating channel, and the edges of the first baffle and the second baffle can be in contact with the heating channel to prevent heat flow;

[0011] The cooling assembly comprises a cooling tank, wherein the cooling tank is arranged below the heating furnace, and the bracket can extend into the cooling tank for cooling.

[0012] The solid-liquid-gas three-phase thermal cycle experimental apparatus according to the embodiment of the present application has at least the following beneficial effects: the sample lifting device can be used to drive the bracket into the heating furnace and the cooling tank, and the sample in the bracket is quickly cooled in the cooling tank after being heated in the heating furnace, thereby reducing heat loss during the movement of the sample. In addition, baffles are provided at the top and bottom of the bracket. When the sample is heated in the heating furnace, the baffles prevent heat loss, and when the sample is cooled in the cooling tank, the baffles prevent cold loss, thereby making the heating and cooling temperatures more precise and improving the accuracy of the experimental results.

[0013] According to some embodiments of the present application, the sample carrying platform also includes a flange, which is installed to the heating furnace and covers the top of the heating channel. The bracket is provided with a sliding rod, which is slidably connected to the flange, and the sliding rod is connected to the sample lifting device.

[0014] According to some embodiments of the present application, the flange is installed with a thermocouple and a pressure relief valve, the thermocouple is used to detect the temperature in the heating channel, and the pressure relief valve is used to urgently reduce the gas pressure in the heating furnace.

[0015] According to some embodiments of the present application, a movable baffle is hinged on the bottom of the heating furnace, and the movable baffle can cover the bottom of the heating channel. The second baffle can push open the movable baffle when it moves downward.

[0016] According to some embodiments of the present application, the sample lifting device includes a motor, a transmission wheel, a chain and a counterweight, the chain is wound around the transmission wheel, the motor drives the transmission wheel to rotate, the two ends of the chain are respectively connected to the bracket and the counterweight, and the motor pulls the bracket to move in the vertical direction through the chain.

[0017] According to some embodiments of the present application, the sample lifting device further includes a belt and a driving wheel, the driving wheel is mounted on the output shaft of the motor, the belt is wound around the transmission wheel and the driving wheel, and the motor drives the transmission wheel to rotate through the belt.

[0018] According to some embodiments of the present application, the cooling assembly includes a rotating platform, on which at least two cooling tanks are arranged, and the cooling tanks are distributed in a circular array around the rotation axis of the rotating platform.

[0019] According to some embodiments of the present application, a lifting mechanism is installed on the rotating platform, and the lifting mechanism is used to drive the cooling tank to lift so that the top of the cooling tank is docked with the bottom of the heating furnace.

[0020] According to some embodiments of the present application, the cooling tank is provided with an inlet and an outlet, the inlet is used to guide the cooling medium into the cooling tank, and the outlet is used to guide the cooling medium to be discharged from the cooling tank.

[0021] According to the experimental method of the second embodiment of the present application, based on the above-mentioned solid-liquid-gas three-phase thermal cycle experimental device, the following steps are included:

[0022] Fixing the sample on the support;

[0023] Turning on the heating furnace to make the temperature in the heating channel reach a preset heating temperature;

[0024] Injecting a cooling medium into the cooling tank to make the temperature inside the cooling tank reach a preset cooling temperature;

[0025] Starting the sample lifting device to drive the bracket into the heating channel, and the first baffle and the second baffle respectively block both ends of the heating channel to reduce heat loss;

[0026] The sample in the holder is heated to a preset temperature, and the holder is driven into the cooling tank by the sample lifting device;

[0027] The first baffle blocks the top opening of the cooling tank to reduce cooling loss;

[0028] The sample in the holder is cooled to a preset temperature, and the holder is pulled out by the sample lifting device;

[0029] The sample in the bracket is taken out, and the structure of the sample is observed and recorded.

[0030] According to the experimental method of the embodiment of the present application, there are at least the following beneficial effects: the sample lifting device can drive the bracket to carry the sample and move between the heating furnace and the cooling tank, so as to achieve rapid heating and cooling; and the baffle on the bracket can reduce the loss of heat and cold, so that the heating temperature and cooling temperature are more accurate.

[0031] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the technical solution disclosed in this application and constitute a part of the specification. Together with the embodiments disclosed in this application, they are used to explain the technical solution disclosed in this application and do not constitute a limitation on the technical solution disclosed in this application.

[0033] Figure 1 A three-dimensional diagram of the solid-liquid-gas three-phase thermal cycle experimental device according to an embodiment of the present application;

[0034] Figure 2 A three-dimensional diagram of the sample carrying platform in the solid-liquid-gas three-phase thermal cycle experimental device of the embodiment of the present application;

[0035] Figure 3 A three-dimensional diagram of the sample lifting platform in the solid-liquid-gas three-phase thermal cycle experimental device of the embodiment of the present application;

[0036] Figure 4 A three-dimensional diagram of the heating furnace in the solid-liquid-gas three-phase thermal cycle experimental device of the embodiment of the present application;

[0037] Figure 5 This is a front view of the movable baffle in the solid-liquid-gas three-phase thermal cycle experimental device of the embodiment of the present application;

[0038] Figure 6 This is a front view of the cooling assembly in the solid-liquid-gas three-phase thermal cycle experimental device of an embodiment of the present application.

[0039] Figure markings: 100-sample carrying platform, 110-bracket, 111-slide rod, 120-first baffle, 130-second baffle, 140-flange, 141-thermocouple, 142-pressure relief valve, 200-sample lifting device, 210-motor, 220-transmission wheel, 230-chain, 240-counterweight, 250-belt, 260-driving wheel, 300-heating furnace, 310-heating channel, 320-movable baffle, 400-cooling assembly, 410-cooling tank, 420-rotating platform, 430-lifting mechanism, 500-sample. DETAILED DESCRIPTION

[0040] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0041] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0042] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0043] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0044] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0045] As human engineering activities continue to expand into extreme environments, thermal cycling has become a crucial topic in the study of material and structural performance. Thermal cycling generally refers to the temperature fluctuations experienced by a material or structure during repeated heating and cooling. The thermal stresses and deformations caused by these temperature fluctuations can lead to the initiation and propagation of microcracks, thereby affecting the physical and mechanical properties of the material. Consequently, thermal cycling experiments are becoming increasingly important in fields such as aerospace, energy development, electronics manufacturing, and geotechnical engineering.

[0046] Currently, thermal cycling experiments on materials remain largely theoretical. The core challenge of thermal cycling experiments is how to quickly cool materials after heating them. Furthermore, to achieve more accurate experimental results, both heating and cooling temperatures must be precisely controlled. However, heat transfer between the heat source and cooling source in the experimental setup inevitably affects the experimental results.

[0047] To address this issue, this application proposes a solid-liquid-gas three-phase thermal cycle experimental device. A sample lifting device is used to drive a bracket into a heating furnace and a cooling tank. After being heated in the heating furnace, the sample in the bracket is quickly cooled in the cooling tank, reducing heat loss during sample movement. Furthermore, baffles are provided at the top and bottom of the bracket. These baffles prevent heat loss when the sample is heated in the heating furnace, and prevent cold loss when the sample is cooled in the cooling tank. This allows for more precise heating and cooling temperatures, improving the accuracy of experimental results.

[0048] In addition, the present application also proposes an experimental method based on the above-mentioned solid-liquid-gas three-phase thermal cycle experimental device. The sample lifting device can drive the bracket to carry the sample and move between the heating furnace and the cooling tank to achieve rapid heating and cooling; and the baffle on the bracket can reduce the loss of heat and cold, making the heating temperature and cooling temperature more accurate.

[0049] Reference Figure 1 The solid-liquid-gas three-phase thermal cycle experimental device in the embodiment of the first aspect of the present application includes a sample loading platform 100, a sample lifting device 200, a heating furnace 300, and a cooling assembly 400. The sample loading platform 100 is used to load the sample, and the sample lifting device 200 is used to drive the sample up and down and into the heating furnace 300 or the cooling assembly 400. The heating furnace 300 is used to heat the sample, and the cooling assembly 400 is used to cool the sample.

[0050] Specifically, refer to Figure 2 The sample loading platform 100 includes a support 110, a first baffle 120, and a second baffle 130. The first baffle 120 is located at the top of the support 110, and the second baffle 130 is located at the bottom of the support 110. The support 110 is used to fix the sample 500. The support 110 is provided with a thorn-like structure to ensure sufficient contact with the sample 500. The bottom of the support 110 also has an outwardly protruding extension to support the sample 500.

[0051] Specifically, the sample loading platform 100 also includes a flange 140, which is mounted to the heating furnace 300 and covers the top of the heating channel 310. The bracket 110 is provided with a slide bar 111, which is slidably connected to the flange 140 and connected to the sample lifting device 200. Thus, the flange 140 can further prevent heat from escaping from the heating channel 310, providing a better sealing effect. Furthermore, the slide bar 111 is exposed from the flange 140 and connected to the sample lifting device 200, without hindering the movement of the bracket 110.

[0052] Furthermore, the bracket 110 , the first baffle 120 and the second baffle 130 are all made of quartz material, thus having good heat resistance.

[0053] Furthermore, flange 140 is equipped with a thermocouple 141 and a pressure relief valve 142. Thermocouple 141 is used to detect the temperature in heating channel 310, thereby implementing closed-loop control of the heating temperature of heating furnace 300. Pressure relief valve 142 is used to urgently reduce the pressure in the heating furnace, thereby providing emergency relief when the pressure in heating furnace 300 is too high.

[0054] The sample lifting device 200 is connected to the bracket 110 and drives the bracket 110 to move in the vertical direction. In some embodiments, the sample lifting device 200 uses an electric telescopic rod, a hydraulic rod or a screw mechanism to drive the bracket 110 to move up and down. In this embodiment, refer to Figure 3 The sample lifting device 200 includes a motor 210, a transmission wheel 220, a chain 230, and a counterweight 240. The chain 230 is made of a heat-resistant alloy and is wound around the transmission wheel 220. The transmission wheel 220 is provided with teeth for engagement with the chain. The motor 210 drives the transmission wheel 220 to rotate. The ends of the chain 230 are respectively connected to the bracket 110 and the counterweight 240. The motor 210 pulls the bracket 110 in a vertical direction through the chain 230. The chain drive thus drives the bracket 110 up and down, and the counterweight 240 reduces the load on the motor 210.

[0055] Furthermore, the sample lifting device 200 includes a belt 250 and a driving pulley 260. The driving pulley 260 is mounted on the output shaft of the motor 210. The belt 250 is wound around the transmission pulley 220 and the driving pulley 260. The motor 210 drives the transmission pulley 220 to rotate via the belt 250. The motor 210 drives the transmission pulley 220 via a belt drive, and the transmission ratio can be changed, thereby further reducing the load burden on the motor 210.

[0056] Reference Figure 4 The heating furnace 300 is provided with a heating channel 310, the bracket 110 can pass through the heating channel 310, and the edges of the first baffle 120 and the second baffle 130 can be attached to the heating channel 310 to hinder the flow of heat, thereby achieving the technical effect of keeping the heating channel 310 warm.

[0057] Further, refer to Figure 5 A movable baffle 320 is hingedly connected to the bottom of the heating furnace 300, covering the bottom of the heating channel 310. When the bracket 110 moves downward, the downwardly moving second baffle 130 pushes open the movable baffle 320, allowing the bracket 110 to move further downward and into the cooling assembly 400. Thus, when the movable baffle 320 is closed, it prevents heat from escaping from the heating furnace 300 and also clears the channel when the bracket 110 moves downward to avoid interference with the bracket 110.

[0058] Specifically, the movable baffle 320 may also be driven by a motor, and the opening and closing of the movable baffle 320 may be controlled by the motor.

[0059] Reference Figure 6 The cooling assembly 400 includes a cooling tank 410 , which is disposed below the heating furnace 300 , and the bracket 110 can extend into the cooling tank 410 for cooling.

[0060] Furthermore, the cooling assembly 400 includes a rotating platform 420, on which are disposed at least two cooling tanks 410, each of which is arranged in a circular array around the rotation axis of the rotating platform 420. By rotating the rotating platform 420, different cooling tanks 410 can be switched to cool the sample 500, thereby achieving different cooling effects.

[0061] Furthermore, a lifting mechanism 430 is installed on the rotating platform 420, and the lifting mechanism 430 is used to drive the cooling tank 410 to rise, so that the top of the cooling tank 410 is docked with the bottom of the heating furnace 300, reducing the distance between the cooling tank 410 and the heating furnace 300, thereby reducing the heat loss of the sample 500 during the transfer process.

[0062] Specifically, the cooling tank 410 is provided with an inlet and an outlet, the inlet is used to guide the cooling medium into the cooling tank 410, and the outlet is used to guide the cooling medium out of the cooling tank 410. The cooling medium can be a coolant, ice or other medium that can provide cooling capacity.

[0063] An experimental method in an embodiment of the second aspect of the present application is performed based on the above-mentioned solid-liquid-gas three-phase thermal cycle experimental device, comprising the following steps:

[0064] S100. The sample 500 is fixed on the bracket 110;

[0065] S200 turns on the heating furnace 300, so that the temperature within the heating channel 310 reaches a preset heating temperature;

[0066] S300. Injecting a cooling medium into the cooling tank 410 so that the temperature inside the cooling tank 410 reaches a preset cooling temperature;

[0067] S400 starts the sample lifting device 200, driving the bracket 110 into the heating channel 310, the first baffle 120 and the second baffle 130 are respectively blocking both ends of the heating channel 310 to reduce heat loss;

[0068] S500. The sample 500 in the holder 110 is heated to a preset temperature. After a period of heat preservation, the sample lifting device 200 drives the holder 110 into the cooling tank 410;

[0069] S600. The first baffle 120 blocks the top opening of the cooling tank 410 to reduce cooling loss;

[0070] S700. The sample 500 in the holder 110 is cooled to a preset temperature, and the sample lifting device 200 drives the holder 110 out;

[0071] S800. Take out the sample 500 from the bracket 110 and observe and record the structure of the sample 500.

[0072] During the subsequent observation and recording process, the sample 500 after the thermal cycle treatment and the blank group sample 500 can be scanned using CT to detect surface and internal cracks and compared. The sample 500 after the thermal cycle treatment and the blank group sample 500 can also be subjected to relevant mechanical experiments and compared, which will serve as a basis for determining subsequent damage changes in indicators such as sample stability and strength.

[0073] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A solid-liquid-gas three-phase thermal cycle experimental device, characterized in that: include: A sample carrying platform comprises a bracket, a first baffle and a second baffle, wherein the first baffle is arranged on the top of the bracket and the second baffle is arranged on the bottom of the bracket, and the bracket is used to fix the sample; a sample lifting device, connected to the bracket and driving the bracket to move in a vertical direction; A heating furnace is provided with a heating channel, the bracket can pass through the heating channel, and the edges of the first baffle and the second baffle can be in contact with the heating channel to prevent heat flow; A cooling assembly comprising a cooling tank, wherein the cooling tank is disposed below the heating furnace, and the bracket can extend into the cooling tank for cooling; In which, the sample carrying platform also includes a flange, which is installed to the heating furnace and covers the top of the heating channel. The bracket is provided with a sliding rod, which is slidably connected to the flange, and the sliding rod is connected to the sample lifting device; the bottom of the heating furnace is hinged with a movable baffle, which can cover the bottom of the heating channel, and the second baffle can push open the movable baffle by moving downward.

2. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 1, characterized in that: The flange is equipped with a thermocouple and a pressure relief valve. The thermocouple is used to detect the temperature in the heating channel, and the pressure relief valve is used to urgently reduce the gas pressure in the heating furnace.

3. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 1, characterized in that: The sample lifting device includes a motor, a transmission wheel, a chain and a counterweight. The chain is wound around the transmission wheel, and the motor drives the transmission wheel to rotate. The two ends of the chain are respectively connected to the bracket and the counterweight. The motor pulls the bracket to move in the vertical direction through the chain.

4. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 3, characterized in that: The sample lifting device further includes a belt and a driving wheel. The driving wheel is mounted on the output shaft of the motor. The belt is wound around the transmission wheel and the driving wheel. The motor drives the transmission wheel to rotate via the belt.

5. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 1, characterized in that: The cooling assembly includes a rotating platform, on which at least two cooling tanks are arranged, and the cooling tanks are distributed in a circular array around the rotating axis of the rotating platform.

6. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 5, characterized in that: A lifting mechanism is installed on the rotating platform, and the lifting mechanism is used to drive the cooling tank to lift so that the top of the cooling tank is docked with the bottom of the heating furnace.

7. The solid-liquid-gas three-phase thermal cycle experimental device according to claim 5, characterized in that: The cooling tank is provided with an inlet and an outlet. The inlet is used to guide the cooling medium into the cooling tank, and the outlet is used to guide the cooling medium to be discharged from the cooling tank.

8. An experimental method for the solid-liquid-gas three-phase thermal cycle experimental device according to any one of claims 1 to 7, characterized in that: include: Fixing the sample on the support; Turning on the heating furnace to make the temperature in the heating channel reach a preset heating temperature; Injecting a cooling medium into the cooling tank to make the temperature inside the cooling tank reach a preset cooling temperature; Starting the sample lifting device to drive the bracket into the heating channel, and the first baffle and the second baffle respectively block both ends of the heating channel to reduce heat loss; The sample in the holder is heated to a preset temperature, and the holder is driven into the cooling tank by the sample lifting device; The first baffle blocks the top opening of the cooling tank to reduce cooling loss; The sample in the holder is cooled to a preset temperature, and the holder is pulled out by the sample lifting device; The sample in the bracket is taken out, and the structure of the sample is observed and recorded.

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