Aerogel thermal insulation material performance testing device

Abstract

The utility model discloses an aerogel thermal insulation material performance testing device which comprises a testing mechanism with supporting legs at four corners of the bottom, a detection mechanism is installed on one side of the upper end face of the testing mechanism, the testing mechanism comprises a mechanism shell, a testing groove is formed in the upper end face of the mechanism shell, a bearing plate is connected in the testing groove in a sliding mode, and the bearing plate is connected with the testing mechanism. A heating assembly is fixedly connected to the upper end face of the bearing plate, an elastic assembly is fixedly connected to the lower end face of the bearing plate, the detection mechanism comprises an L-shaped supporting arm, a data processing device and a detection assembly are installed on the side wall of the L-shaped supporting arm, and the detection assembly detects the heat insulation performance of the aerogel heat preservation and insulation material in the pressure bearing state. According to the utility model, by arranging the testing mechanism and the detection mechanism, the thermal insulation performance of the aerogel thermal insulation material in a pressed state is detected, and the temperature measurement accuracy is improved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation material performance testing, in particular to an aerogel thermal insulation material performance testing device. Background Art

[0002] Aerogel has a high porosity and more than 80% of it is air, so it has a very good thermal insulation effect. It has been applied in solar energy utilization and building energy conservation. Thermal insulation is one of the important characteristics of aerogel thermal insulation materials. By heating one side of the material and testing the temperature on both sides at the same time, the thermal insulation performance of the material can be detected.

[0003] After searching, the application number CN202320265264.4 discloses an aerogel coating thermal insulation performance testing device, including a testing main unit and a column at the top of the rear end, wherein a top seat extending forward is arranged on the outside of the top of the column. By adding a new heat locking device to the column, the flame is concentrated to burn, thereby preventing the flame from dispersing and affecting the thermal insulation performance detection.

[0004] Existing testing equipment tests the thermal insulation performance of aerogel insulation materials under normal temperature and pressure conditions. However, aerogel thermal insulation materials are widely used and inevitably need to withstand external forces when in use. There is a large gap between the thermal insulation performance test conducted at normal temperature and pressure and the thermal insulation performance in actual use. Utility Model Content

[0005] The utility model aims to provide a device for testing the performance of an aerogel thermal insulation material to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides an aerogel thermal insulation material performance testing device, comprising a testing mechanism with supporting legs at the four corners of the bottom, a detection mechanism is installed on one side of the upper end surface of the testing mechanism, the testing mechanism comprises a mechanism housing, a test slot is provided on the upper end surface of the mechanism housing, a receiving plate is slidably connected in the test slot, a heating component is fixedly connected to the upper end surface of the receiving plate, an elastic component is fixedly connected to the lower end surface of the receiving plate, and one end of the elastic component facing away from the receiving plate is fixedly connected to the bottom of the test slot, the detection mechanism comprises an L-shaped support arm, a data processing device and a detection component are installed on the side wall of the L-shaped support arm, the detection component pushes the aerogel thermal insulation material to the bottom of the test slot, and at the same time detects the thermal insulation performance of the aerogel thermal insulation material under pressure.

[0007] As a further preference, an L-shaped heat insulating material is fixedly connected to the inner wall of the test slot, and the receiving plate is slidably connected to the inner wall of the L-shaped heat insulating material.

[0008] As a further preference, the heating component includes a heating box, and two groups of internal temperature measuring heads are symmetrically arranged on the upper end surface of the heating box away from the center of the circle. A heating plate is installed in the heating box, and the heating plate and the inner wall of the heating box are filled with insulation rings.

[0009] As a further preference, the detection component includes a motor, the output end of the motor passes through the L-shaped support arm and is fixedly connected to a driving wheel, the front end surface of the driving wheel is rotatably connected to a lever, the end of the lever facing away from the driving wheel is rotatably connected to a driving rod, the lower end of the driving rod is fixedly connected to a detection head, the side wall of the L-shaped support arm is fixedly connected to a limiting sleeve, and the detection head is slidably connected in the limiting sleeve.

[0010] As a further preference, an inner installation groove is opened at the lower end of the driving rod, and the detection head includes a suction cup, and a pressure measuring ring and an external temperature measuring head are installed on the top of the suction cup, and the external temperature measuring head is partially located in the inner installation groove.

[0011] As a further preference, a mounting ring is fixedly connected to the inner wall of the mounting inner groove, a support spring is fixedly connected to the lower end face of the mounting ring, an external temperature measuring head is fixedly connected to one end of the support spring facing away from the mounting ring, a through hole is provided in the middle of the pressure measuring ring, and the lower end of the external temperature measuring head extends out through the through hole.

[0012] Through the above technical solution, the aerogel thermal insulation material performance testing device provided by the utility model has the following benefits:

[0013] 1. The utility model sets a testing mechanism and a detection mechanism. The motor works to drive the driving wheel to rotate, and the driving rod is driven to move by the lever. The limiting effect of the limit sleeve makes the driving rod move back and forth in the vertical direction. The driving rod drives the detection head to push the aerogel thermal insulation material and the receiving plate to move downward along the test groove. When the receiving plate moves, the elastic component is compressed and the pressure gradually increases with the increase of the moving distance. At the same time, the heating plate works to heat the lower end surface of the aerogel thermal insulation material. The internal temperature measuring head and the external temperature measuring head monitor the temperature on both sides of the material. At the same time, the pressure measuring ring records the pressure on the material. The data is transmitted to the data processing device. The data processing device draws the temperature difference and pressure curve of the aerogel thermal insulation material, thereby detecting the thermal insulation performance of the aerogel thermal insulation material under pressure.

[0014] 2. The utility model sets a detection head, and the suction cup pushes the aerogel thermal insulation material downward to move and deform. The pressure measuring ring contacts the thermal insulation material and records the pressure on the material in real time. At the same time, the thermal insulation material pushes the external temperature measuring head to compress the support spring and move it upward. The reaction force of the support spring makes the external temperature measuring head always contact with the thermal insulation material, while avoiding damage caused by excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of a performance testing device for an aerogel thermal insulation material of the present utility model.

[0016] Figure 2 The figure is a partially sectional schematic diagram of the testing mechanism of the present utility model

[0017] Figure 3 The figure is a partially sectional structural schematic diagram of the heating component of the present utility model.

[0018] Figure 4 The figure is a schematic structural diagram of the detection mechanism of the present utility model.

[0019] Figure 5 The figure is a partially sectional structural schematic diagram of the detection head of the present utility model.

[0020] In the figure: 1 is the testing mechanism, 11 is the testing groove, 12 is the receiving plate, 13 is the mechanism housing, 14 is the L-shaped thermal insulation material, 15 is the elastic component, 16 is the heating component, 161 is the internal temperature measuring head, 162 is the heating box, 163 is the heat insulation ring, 164 is the heating plate, 2 is the detection mechanism, 21 is the L-shaped support arm, 22 is the data processing device, 23 is the detection component, 231 is the motor, 232 is the driving wheel, 233 is the dial rod, 234 is the limiting sleeve, 235 is the driving rod, 236 is the detection head, 2361 is the mounting ring, 2362 is the external temperature measuring head, 2363 is the suction cup, 2364 is the pressure measuring ring, 2365 is the support spring, 237 is the mounting inner groove. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model will be further described in detail in conjunction with the accompanying drawings.

[0023] Please refer to Figure 1 - Figure 5 , which is a performance testing device for an aerogel thermal insulation material provided by the present utility model, including a testing mechanism 1 and a detection mechanism 2.

[0024] Among them, please refer to Figure 1 , Figure 2 and Figure 4The testing mechanism 1 includes a mechanism housing 13, a testing slot 11 is provided on the upper end surface of the mechanism housing 13, an L-shaped heat insulating material 14 is installed on the inner wall of the testing slot 11, a receiving plate 12 is slidably connected to the inner wall of the L-shaped heat insulating material 14, a heating component 16 is fixedly connected to the top of the receiving plate 12, an elastic component 15 is fixedly connected to the bottom of the receiving plate 12, and one end of the elastic component 15 facing away from the receiving plate 12 is fixedly connected to the bottom of the testing slot 11, and the testing mechanism 2 includes an L-shaped supporting arm 21, the lower end of the L-shaped supporting arm 21 is fixedly connected to one side of the upper end surface of the mechanism housing 13, and a data processing device 2 is installed on the top of the L-shaped supporting arm 21 2 and a detection component 23, the detection component 23 is located directly above the heating component 16, the aerogel thermal insulation material is placed on the upper end surface of the heating component 16, the lower end of the detection component 23 pushes the aerogel thermal insulation material to move downward along the test slot 11, the aerogel thermal insulation material pushes the receiving plate 12 through the heating component 16 to compress the elastic component 15 to move, and at the same time the heating component 16 works to heat and detect the temperature of the lower end surface of the aerogel thermal insulation material, the detection component 23 detects the pressure on the aerogel thermal insulation material and the temperature of the upper end surface, and the temperature and pressure data are transmitted to the data processing device 22 for processing.

[0025] For details, please refer to Figure 2 The L-shaped insulation material 14 is set in reverse, and the short end of the L-shaped insulation material 14 is limited to the receiving plate 12, so that the receiving plate 12 is always in the test slot 11. The bottom of the heating component 16 is connected with a spiral transmission line to avoid interference of the transmission line on the movement of the receiving plate 12. The receiving plate 12 is provided with insulation material on the side in contact with the heating component 16 to reduce the heat radiation of the heating component 16 to the elastic component 15 and the spiral transmission line, while ensuring the concentration of heat on the lower end surface of the aerogel thermal insulation material.

[0026] See also Figure 3 In one embodiment of the utility model, in order to improve the accuracy of the temperature test on the lower end surface of the aerogel thermal insulation material, the heating component 16 includes a heating box 162, and two groups of mounting holes are symmetrically opened on the upper end surface of the heating box 162. An internal temperature measuring head 161 is slidably connected in the mounting hole. A spring is provided in the adjacent area between the internal temperature measuring head 161 and the bottom of the mounting hole. The spring pushes the internal temperature measuring head 161 to contact the lower end surface of the aerogel thermal insulation material, thereby improving the accuracy of temperature measurement.

[0027] Specifically, a first threading hole is provided at the bottom of the mounting hole, the data line passes through the first threading hole and extends out through the lower end surface of the heating box 162, a heating plate 164 is fixedly connected inside the heating box 162, and the heating plate 164 and the adjacent area of ​​the inner wall of the heating box 162 are filled with a heat insulation ring 163 to reduce the heat radiation of the heating plate 164 to the data line and the side wall and bottom of the heating box 162, and a second threading hole is opened at the bottom of the inner cavity of the heating box 162, and the connecting line at the bottom of the heating plate 164 passes through the second threading hole.

[0028] For further information, see Figure 4 The detection component 23 includes a motor 231, which is installed on the side wall of the L-shaped support arm 21, and the output end of the motor 231 passes through the L-shaped support arm 21 and is fixedly connected to a driving wheel 232. The front end of the driving wheel 232 is rotatably connected to a lever 233, and the end of the lever 233 away from the driving wheel 232 is rotatably connected to a driving rod 235. The bottom of the driving rod 235 is fixedly connected to a detection head 236, which is located directly above the heating component 16 and is used to push the aerogel thermal insulation material to move up and down periodically.

[0029] Specifically, the side wall of the L-shaped support arm 21 is fixedly connected to a limiting sleeve 234, which is located directly below the driving wheel 232. The driving rod 235 is slidably connected in the limiting sleeve 234. Through the limiting effect of the limiting sleeve 234, the driving rod 235 always moves up and down in the vertical direction.

[0030] For further information, see Figure 5 An installation inner groove 237 is provided at the lower end of the driving rod 235, and the detection head 236 includes a suction cup 2363. The top of the suction cup 2363 is connected to the installation inner groove 237. A mounting ring 2361 is fixedly connected to the inner wall of the installation inner groove 237. A supporting spring 2365 is fixedly connected to the lower end surface of the mounting ring 2361. An external temperature measuring head 2362 is fixedly connected to the end of the supporting spring 2365 away from the mounting ring 2361. A pressure measuring ring 2364 is fixedly connected to the top of the external temperature measuring head 2362. The temperature and pressure of the upper end surface of the aerogel thermal insulation material are tested by the external temperature measuring head 2362 and the pressure measuring ring 2364.

[0031] Specifically, a mounting hole is provided inside the pressure measuring ring 2364, and the lower end of the external temperature measuring head 2362 extends out through the mounting hole. When the suction cup 2363 pushes the aerogel thermal insulation material downward, the upper end surface of the aerogel thermal insulation material pushes the external temperature measuring head 2362 to compress the support spring 2365 and move it upward along the inner wall of the installation inner groove 237. The reaction force of the support spring 2365 ensures that the external temperature measuring head 2362 is always in close contact with the upper end surface of the aerogel thermal insulation material, while avoiding damage to the external temperature measuring head 2362 as the pressure increases.

[0032] Furthermore, a third threading hole is opened at the top of the mounting ring 2361 , and the data line of the external temperature measuring head 2362 and the pressure measuring ring 2364 passes through the third threading hole and extends to the outside of the driving rod 235 , and is electrically connected to the data processing device 22 .

[0033] Working principle: Place the aerogel thermal insulation material on the upper end face of the heating component 16. When the motor 231 operates, it drives the driving wheel 232 to rotate. Through the limiting action of the lever 233 and the limiting sleeve 234, the driving rod 235 moves up and down in the vertical direction. When the driving rod 235 moves, it drives the detection head 236 to push the aerogel thermal insulation material to move downward along the test groove 11. At the same time, it drives the receiving plate 12 to compress the elastic component 15 and move downward. As the elastic component 15 is gradually compressed, the pressure borne by the aerogel thermal insulation material gradually increases. At the same time, the heating plate 164 operates to heat the lower end face of the aerogel thermal insulation material. The two groups of internal temperature measuring heads 161 measure the temperature of the lower end face of the material. At the same time, the suction cup 2363 deforms, causing the pressure measuring ring 2364 to contact the upper end face of the material and record the pressure borne by the material in real time. The upper end face of the material pushes the external temperature measuring head 2362 to compress the support spring 2365 and slide into the installation inner groove 237. The reaction force of the support spring 2365 causes the external temperature measuring head 2362 to always be in close contact with the upper end face of the material, so as to detect the temperature of the upper end of the material. The temperature and pressure data are transmitted to the data processing device 22 through the data line, and after being processed by the data processing device 22, the thermal insulation performance of the material under pressure is measured.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the performance of an aerogel thermal insulation material, comprising a testing mechanism (1) with legs at the four corners of the bottom, characterized in that: A detection mechanism (2) is installed on one side of the upper end surface of the test mechanism (1). The test mechanism (1) comprises a mechanism housing (13). The upper end surface of the mechanism housing (13) is provided with a test slot (11). A receiving plate (12) is slidably connected in the test slot (11). A heating component (16) is fixedly connected to the upper end surface of the receiving plate (12). An elastic component (15) is fixedly connected to the lower end surface of the receiving plate (12). One end of the elastic component (15) facing away from the receiving plate (12) is fixedly connected to the bottom of the test slot (11). The detection mechanism (2) comprises an L-shaped support arm (21). A data processing device (22) and a detection component (23) are installed on the side wall of the L-shaped support arm (21). The detection component (23) pushes the aerogel thermal insulation material toward the bottom of the test slot (11) and detects the thermal insulation performance of the aerogel thermal insulation material under pressure.

2. The aerogel thermal insulation material performance testing device according to claim 1, characterized in that: The inner wall of the test slot (11) is fixedly connected with an L-shaped heat insulating material (14), and the receiving plate (12) is slidably connected to the inner wall of the L-shaped heat insulating material (14).

3. The aerogel thermal insulation material performance testing device according to claim 1, characterized in that: The heating component (16) comprises a heating box (162), the upper end surface of the heating box (162) being symmetrically provided with two groups of internal temperature measuring heads (161) away from the center of a circle, a heating plate (164) being installed in the heating box (162), and the heating plate (164) and the inner wall of the heating box (162) being filled with a heat insulation ring (163).

4. The aerogel thermal insulation material performance testing device according to claim 1, characterized in that: The detection component (23) comprises a motor (231); the output end of the motor (231) passes through the L-shaped support arm (21) and is fixedly connected to a driving wheel (232); a front end surface of the driving wheel (232) is rotatably connected to a lever (233) at an eccentric position; an end of the lever (233) facing away from the driving wheel (232) is rotatably connected to a driving rod (235); a lower end of the driving rod (235) is fixedly connected to a detection head (236); a side wall of the L-shaped support arm (21) is fixedly connected to a limiting sleeve (234); and the detection head (236) is slidably connected in the limiting sleeve (234).

5. The aerogel thermal insulation material performance testing device according to claim 4, characterized in that: The lower end of the driving rod (235) is provided with an inner installation groove (237), and the detection head (236) includes a suction cup (2363). A pressure measuring ring (2364) and an external temperature measuring head (2362) are installed on the top of the suction cup (2363), and a portion of the external temperature measuring head (2362) is located in the inner installation groove (237).

6. The aerogel thermal insulation material performance testing device according to claim 5, characterized in that: The inner wall of the inner mounting groove (237) is fixedly connected with a mounting ring (2361), the lower end surface of the mounting ring (2361) is fixedly connected with a support spring (2365), the end of the support spring (2365) facing away from the mounting ring (2361) is fixedly connected with an external temperature measuring head (2362), a through hole is provided in the middle of the pressure measuring ring (2364), and the lower end of the external temperature measuring head (2362) protrudes through the through hole.

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