A device for detecting thermal conductivity of self-insulation wall material

Abstract

The application relates to a self-thermal insulation wall material thermal conductivity detection device and relates to the field of thermal conductivity detection devices. The device comprises a detection table, the upper end surface of the detection table is provided with a detection box, the detection box is fixedly connected with the detection table, a heat source is fixedly arranged on the inner side of the rear end surface of the detection box, a partition frame is further arranged in the middle of the detection box, the partition frame is vertically fixed on the upper end surface of the detection table, two groups of auxiliary clamps are symmetrically arranged on the two sides of the partition frame, and the auxiliary clamps are slidably connected with the partition frame. The stable clamping of the auxiliary clamps and the auxiliary positioning of the positioning clamping strips ensure the position fixation of the detection materials in the detection process, and the detection errors caused by the material movement are reduced. Meanwhile, the setting of the heat insulation cover and the turnover baffle effectively reduces the heat loss, improves the stability of the detection environment, and improves the accuracy of the thermal conductivity detection result.

Description

Technical Field

[0001] This application relates to the technical field of thermal conductivity testing devices, and in particular to a thermal conductivity testing device for self-insulating wall materials. Background Technology

[0002] In the field of building energy conservation, the thermal conductivity of self-insulating wall materials is a core indicator for measuring their insulation performance, directly affecting the building's energy efficiency and occupant comfort. Currently, traditional devices used to test the thermal conductivity of self-insulating wall materials have many limitations in structural design and functional implementation, making it difficult to meet the requirements for high-precision testing.

[0003] Traditional thermal conductivity testing devices often employ simple open or semi-open structures. These devices lack effective thermal insulation design, allowing heat to easily dissipate to the outside environment during testing through air convection and radiation, resulting in significant temperature fluctuations in the testing environment. In some devices, the heating and temperature sensing components are poorly arranged, limiting the contact area between the heat source and the material surface, leading to uneven heating. Furthermore, the single temperature sensing point setting fails to comprehensively reflect the temperature conduction in different areas of the material, making it difficult to calculate the average thermal conductivity. Utility Model Content

[0004] To achieve stable and accurate thermal conductivity testing, this application provides a device for testing the thermal conductivity of self-insulating wall materials.

[0005] The thermal conductivity testing device for self-insulating wall materials provided in this application adopts the following technical solution: A device for testing the thermal conductivity of self-insulating wall materials includes a testing platform. A testing box is mounted on the upper surface of the testing platform and is fixedly connected to the testing platform. A heat source is fixedly mounted on the inner side of the rear end face of the testing box. A partition frame is also provided in the middle of the testing box. The partition frame is vertically fixed to the upper surface of the testing platform. Two sets of auxiliary clamps are symmetrically mounted on both sides of the partition frame. The auxiliary clamps are slidably connected to the partition frame. An electric cylinder for driving the auxiliary clamps to move horizontally is also mounted on the partition frame.

[0006] By adopting the above technical solutions, the testing platform provides a stable supporting foundation for the entire device, and the testing chamber creates a relatively closed testing environment, reducing interference from external factors on the testing results. The heat source provides the necessary heat transfer conditions for testing; an electric heating element can be used. The partition divides the interior of the testing chamber into two areas, facilitating simultaneous testing of two materials and enabling comparative testing. The cooperation of the auxiliary clamps and electric cylinders allows for flexible adjustment of the clamp position according to the size of the material being tested, achieving stable clamping and ensuring the material's position remains fixed during testing, thus improving the accuracy of the test results.

[0007] Optionally, the testing station includes a bottom support and a platform, the platform being horizontally mounted on the upper surface of the bottom support and fixedly connected to the bottom support.

[0008] By adopting the above technical solution, the testing station uses a structure of a bottom support and a platform. The bottom support can be made of high-strength metal materials, such as carbon steel, which has good load-bearing capacity and stability. The platform is horizontally installed on the bottom support, providing a flat mounting surface for the testing box and other components, ensuring the stable operation of the entire device.

[0009] Optionally, a flip-up baffle is installed on the front end face of the platform, the lower end of the flip-up baffle is rotatably connected to the platform, and a bracket supporting the flip-up baffle is also fixedly installed on the front end face of the platform. A positioning seat for installing the temperature measuring component is also provided on the flip-up baffle.

[0010] By adopting the above technical solution, the flip-up baffle on the front surface of the platform can be flipped up when needed, forming a protective structure supported by the bracket to prevent heat loss during the testing process. The positioning seat facilitates the installation of temperature measuring components, such as thermocouple temperature sensors (K-type thermocouples can be selected), which can accurately measure the surface temperature of the tested material and provide accurate data for calculating thermal conductivity.

[0011] Optionally, the testing chamber includes a main housing and an insulation cover, the insulation cover being installed on the upper surface of the main housing, and the rear end of the insulation cover being rotatably connected to the main housing.

[0012] By adopting the above technical solution, the main shell and insulation cover of the testing chamber are designed so that the insulation cover can be made of a material with good thermal insulation properties, such as polyurethane foam, which can effectively reduce heat loss inside the testing chamber and improve the stability of the testing environment. The rear end of the insulation cover is rotatably connected to the main shell, which facilitates opening and closing of the testing chamber and makes it easy to place and remove the testing materials.

[0013] Optionally, the main housing includes a back panel and side panels, the side panels being installed on both sides of the back panel and integrally formed with the back panel.

[0014] By adopting the above technical solution, the back panel and side baffles of the main enclosure are integrally molded, enhancing the structural strength and sealing of the main enclosure. The back panel and side baffles can be made of stainless steel, which has good corrosion resistance and thermal insulation properties, ensuring the long-term use of the testing box.

[0015] Optionally, the inner side of the side baffle is provided with a positioning clamping strip that cooperates with the auxiliary clamp. The positioning clamping strip is vertically installed at the front end of the inner side of the side baffle, and the positioning clamping strip is integrally formed with the side baffle.

[0016] By adopting the above technical solution, the positioning clips on the inner side of the side baffle, in conjunction with the auxiliary fixture, further improve the positioning accuracy of the test material. The positioning clips are integrally formed with the side baffle, ensuring the stability and reliability of the structure and better assisting the auxiliary fixture in fixing the test material.

[0017] Optionally, the divider includes an angle plate and guide blocks for sliding installation of auxiliary clamps. The guide blocks are installed at both ends of the angle plate and are integrally formed with the angle plate.

[0018] By adopting the above technical solution, the angle plate and guide block of the separator are integrally molded, resulting in a compact structure and high strength. The guide block provides precise sliding guidance for the slide bar of the auxiliary fixture, ensuring that the auxiliary fixture can move smoothly and accurately, achieving effective clamping of the test material.

[0019] Optionally, the auxiliary clamp includes a clamping plate, a sliding rod, and a linkage plate. The sliding rod is slidably mounted on the guide block, and the clamping plate and linkage plate are fixedly mounted on both ends of the sliding rod.

[0020] By adopting the above technical solution, the auxiliary fixture's clamping plate, sliding rod, and linkage plate have a simple structure and are easy to operate. The clamping plate can be made of rubber to increase friction with the surface of the material being tested, preventing the material from slipping. The sliding rod slides on the guide block and is connected to the electric cylinder through the linkage plate, realizing the synchronous movement of the clamping plate, which can quickly and accurately clamp the material being tested.

[0021] In summary, this application includes at least one of the following beneficial technical effects: By using the stable clamping of the auxiliary fixture and the auxiliary positioning of the positioning strip, this application ensures the fixed position of the test material during the testing process, reducing testing errors caused by material movement. Simultaneously, the design of the heat-insulating cover and the flip-up baffle effectively reduces heat loss, improves the stability of the testing environment, and thus improves the accuracy of the thermal conductivity test results. The electric cylinder-driven movement of the auxiliary fixture enables rapid clamping and releasing of the test material, making operation simple and convenient. The rotating connection design of the heat-insulating cover facilitates the placement and removal of the test material, improving testing efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the overall structure in the embodiments of this application.

[0023] Figure 2 yes Figure 1 Front view of the device shown.

[0024] Figure 3 yes Figure 1 Top view of the device shown.

[0025] Figure 4 yes Figure 1Side view of the device shown.

[0026] Figure 5 yes Figure 1 The device shown is viewed from below.

[0027] Explanation of reference numerals in the attached drawings: 1. Testing table; 11. Bottom support; 12. Platform; 121. Bracket; 13. Flip-over baffle; 131. Positioning seat; 2. Testing box; 20. Heat source; 21. Main box shell; 211. Back plate; 212. Side baffle; 213. Positioning clamp; 22. Insulation cover; 3. Divider frame; 30. Electric cylinder; 31. Angle plate; 32. Guide block; 4. Auxiliary fixture; 41. Clamping plate; 42. Slide rod; 43. Linkage plate. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a device for detecting the thermal conductivity of self-insulating wall materials.

[0030] Example 1 Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a device for testing the thermal conductivity of self-insulating wall materials includes a testing platform 1. A testing box 2 is mounted on the upper surface of the testing platform 1 and is fixedly connected to the testing platform 1. A heat source 20 is fixedly mounted on the inner side of the rear end face of the testing box 2. A partition frame 3 is also provided in the middle of the testing box 2. The partition frame 3 is vertically fixed to the upper surface of the testing platform 1, and two sets of auxiliary clamps 4 are symmetrically mounted on both sides of the partition frame 3. The auxiliary clamps 4 are slidably connected to the partition frame 3, and an electric cylinder 30 is also mounted on the partition frame 3 to drive the auxiliary clamps 4 to move horizontally. The testing platform 1 provides a stable support foundation for the entire device. The testing box 2 is used to create a relatively closed testing environment to reduce the interference of external factors on the testing results. The heat source 20 provides the necessary heat transfer conditions for testing. The heat source 20 can be an electric heating tube. The partition frame 3 divides the interior of the testing box 2 into two areas, which facilitates the simultaneous testing of two pieces of testing material and can also be used for comparative testing. The auxiliary clamp 4 and the electric cylinder 30 work together to flexibly adjust the position of the clamp according to the size of the material being tested, thereby achieving a stable clamping of the material and ensuring that the position of the material is fixed during the testing process, thus improving the accuracy of the test results.

[0031] Reference Figure 2 , Figure 4 and Figure 5As shown, the testing station 1 includes a bottom support 11 and a platform 12. The platform 12 is horizontally mounted on the upper surface of the bottom support 11 and is fixedly connected to the bottom support 11. The testing station 1 adopts the structure of the bottom support 11 and the platform 12. The bottom support 11 can be made of high-strength metal materials, such as carbon steel, which has good load-bearing capacity and stability. The platform 12 is horizontally mounted on the bottom support 11, providing a flat mounting surface for the testing box 2 and other components, ensuring the stable operation of the entire device. A flip-up baffle 13 is installed on the front end face of the platform 12. The lower end of the flip-up baffle 13 is rotatably connected to the platform 12, and a bracket 121 supporting the flip-up baffle 13 is also fixedly installed on the front end face of the platform 12. A positioning seat 131 for installing the temperature measuring component is also provided on the flip-up baffle 13. The flip-up baffle 13 on the front end face of the platform 12 can be flipped up when needed, supported by the bracket 121, forming a protective structure to prevent heat loss during the testing process. The positioning base 131 is designed to facilitate the installation of temperature measuring components, such as thermocouple temperature sensors (model K thermocouple can be selected), which can accurately measure the temperature of the material surface and provide accurate data for the calculation of thermal conductivity.

[0032] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the testing chamber 2 includes a main shell 21 and an insulation cover 22. The insulation cover 22 is installed on the upper surface of the main shell 21, and its rear end is rotatably connected to the main shell 21. The design of the main shell 21 and insulation cover 22 allows the insulation cover 22 to be made of a material with good thermal insulation properties, such as polyurethane foam, which can effectively reduce heat loss inside the testing chamber 2 and improve the stability of the testing environment. The rotatable connection between the rear end of the insulation cover 22 and the main shell 21 facilitates opening and closing of the testing chamber 2 and makes it easy to place and remove testing materials. The main shell 21 includes a back plate 211 and side baffles 212. The side baffles 212 are installed on both sides of the back plate 211 and are integrally formed with the back plate 211. The integral formation of the back plate 211 and side baffles 212 of the main shell 21 enhances the structural strength and sealing of the main shell 21. The back plate 211 and side baffles 212 can be made of stainless steel, which has good corrosion resistance and heat insulation properties, ensuring the long-term use of the testing box 2. A positioning clamping strip 213 is provided on the inner side of the side baffle 212 to cooperate with the auxiliary clamp 4. The positioning clamping strip 213 is vertically installed at the front end of the inner side of the side baffle 212 and is integrally formed with the side baffle 212. The positioning clamping strip 213 on the inner side of the side baffle 212, in cooperation with the auxiliary clamp 4, further improves the positioning accuracy of the testing material. The integral formation of the positioning clamping strip 213 with the side baffle 212 ensures the stability and reliability of its structure, and can better assist the auxiliary clamp 4 in fixing the testing material.

[0033] Example 2 Reference Figure 1 As shown, a device for testing the thermal conductivity of self-insulating wall materials includes a testing platform 1, a testing box 2 installed on the upper surface of the testing platform 1, the testing box 2 being fixedly connected to the testing platform 1, and a heat source 20 being fixedly installed on the inner side of the rear end face of the testing box 2. A partition frame 3 is also provided in the middle of the testing box 2, the partition frame 3 being vertically fixed on the upper surface of the testing platform 1, and two sets of auxiliary clamps 4 being symmetrically installed on both sides of the partition frame 3. The auxiliary clamps 4 are slidably connected to the partition frame 3, and an electric cylinder 30 for driving the auxiliary clamps 4 to move horizontally is also installed on the partition frame 3.

[0034] Reference Figure 3 As shown, the separator 3 includes an angle plate 31 and guide blocks 32 for sliding installation of the auxiliary clamp 4. The guide blocks 32 are installed at both ends of the angle plate 31 and are integrally formed with the angle plate 31. The angle plate 31 and guide blocks 32 of the separator 3 are integrally formed, resulting in a compact structure and high strength. The guide blocks 32 provide precise sliding guidance for the slide rod 42 of the auxiliary clamp 4, ensuring that the auxiliary clamp 4 can move smoothly and accurately, achieving effective clamping of the test material.

[0035] Reference Figure 3 As shown, the auxiliary clamp 4 includes a clamping plate 41, a sliding rod 42, and a linkage plate 43. The sliding rod 42 is slidably mounted on the guide block 32, and the clamping plate 41 and the linkage plate 43 are fixedly mounted on both ends of the sliding rod 42. The clamping plate 41, sliding rod 42, and linkage plate 43 of the auxiliary clamp 4 have a simple structure and are easy to operate. The clamping plate 41 can be made of rubber to increase the friction with the surface of the material being tested and prevent the material from slipping. The sliding rod 42 slides on the guide block 32 and is connected to the electric cylinder 30 through the linkage plate 43, realizing the synchronous movement of the clamping plate 41, which can quickly and accurately clamp the material being tested.

[0036] The implementation principle of the self-insulating wall material thermal conductivity testing device according to this application embodiment is as follows: During actual testing, the insulation cover 22 is opened, and the self-insulating wall material to be tested is placed between the auxiliary clamps 4 on both sides of the partition frame 3. The electric cylinder 30 is activated to drive the auxiliary clamps 4 to move towards the test material, so that the clamping plate 41 tightly clamps the test material, while the positioning bar 213 assists in positioning. The insulation cover 22 is closed, the heat source 20 is activated, and the thermal conductivity test begins. The surface temperature of the test material is measured in real time by a K-type thermocouple temperature sensor, and the data is transmitted to the controller (a Siemens S7-200SMART model can be selected) for processing and analysis. After the test is completed, the heat source 20 is turned off, the insulation cover 22 is opened, the electric cylinder 30 is activated to release the auxiliary clamps 4, and the test material is removed.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for testing the thermal conductivity of self-insulating wall materials, comprising a testing platform (1), characterized in that: The upper end face of the testing platform (1) is equipped with a testing box (2), which is fixedly connected to the testing platform (1). A heat source (20) is fixedly installed on the inner side of the rear end face of the testing box (2). A partition frame (3) is also provided in the middle of the testing box (2). The partition frame (3) is vertically fixed on the upper end face of the testing platform (1). Two sets of auxiliary clamps (4) are symmetrically installed on both sides of the partition frame (3). The auxiliary clamps (4) are slidably connected to the partition frame (3). An electric cylinder (30) for driving the auxiliary clamps (4) to move horizontally is also installed on the partition frame (3).

2. The thermal conductivity testing device for self-insulating wall materials according to claim 1, characterized in that: The testing station (1) includes a bottom support (11) and a platform (12). The platform (12) is horizontally installed on the upper surface of the bottom support (11) and the platform (12) is fixedly connected to the bottom support (11).

3. The thermal conductivity testing device for self-insulating wall materials according to claim 2, characterized in that: The front end of the platform (12) is equipped with a flip baffle (13), the lower end of the flip baffle (13) is rotatably connected to the platform (12), and the front end of the platform (12) is also fixedly equipped with a bracket (121) to support the flip baffle (13). The flip baffle (13) is also provided with a positioning seat (131) for the installation of the temperature measuring component.

4. The thermal conductivity testing device for self-insulating wall materials according to claim 3, characterized in that: The testing box (2) includes a main shell (21) and a heat insulation cover (22). The heat insulation cover (22) is installed on the upper surface of the main shell (21), and the rear end of the heat insulation cover (22) is rotatably connected to the main shell (21).

5. The thermal conductivity testing device for self-insulating wall materials according to claim 4, characterized in that: The main housing (21) includes a back plate (211) and a side baffle (212). The side baffle (212) is installed on both sides of the back plate (211) and is integrally formed with the back plate (211).

6. The thermal conductivity testing device for self-insulating wall materials according to claim 5, characterized in that: The inner side of the side baffle (212) is provided with a positioning clamp (213) that cooperates with the auxiliary clamp (4). The positioning clamp (213) is vertically installed at the front end of the inner side of the side baffle (212), and the positioning clamp (213) and the side baffle (212) are integrally formed.

7. The thermal conductivity testing device for self-insulating wall materials according to claim 6, characterized in that: The separator (3) includes an angle plate (31) and a guide block (32) for sliding installation of an auxiliary clamp (4). The guide block (32) is installed at both ends of the angle plate (31) and is integrally formed with the angle plate (31).

8. The thermal conductivity testing device for self-insulating wall materials according to claim 7, characterized in that: The auxiliary clamp (4) includes a clamping plate (41), a sliding rod (42) and a linkage plate (43). The sliding rod (42) is slidably mounted on the guide block (32), and the clamping plate (41) and the linkage plate (43) are fixedly mounted on both ends of the sliding rod (42).

Images