Device for rapidly evaluating thermal insulation effect of thermal insulation coating

Abstract

A device for rapidly evaluating the thermal insulation effect of a thermal insulation coating comprises a heating plate, a heating device is arranged in the heating plate, a metal plate is arranged on the upper side of the heating plate, a temperature measuring device is arranged on the side face of the metal plate, a metal net is arranged above the metal plate in parallel, a gap is formed between the metal net and the metal plate, and a supporting frame is connected to the side face of the metal net. Packaging paper is arranged on the upper side of the metal net, at least two pieces of temperature measuring paper are arranged above the packaging paper at intervals in the horizontal direction, and a windproof cover is arranged on the upper side of the heating plate. The thermal insulation effect of different thermal insulation coatings can be rapidly and accurately compared and evaluated, a specific shape does not need to be prepared, the sample preparation mode during testing is close to the actual application process of the thermal insulation coatings, the actual effects of the different thermal insulation coatings can be more accurately reflected, and the test efficiency is improved. A faster and more accurate evaluation method is provided for the research and development process of the thermal insulation coating, and the research and development efficiency of the thermal insulation coating is improved.

Description

Technical Field

[0001] This utility model relates to the field of physics, and in particular to a technology for testing the thermal insulation capacity of thermal insulation coatings, especially a device for rapidly evaluating the thermal insulation effect of thermal insulation coatings. Background Technology

[0002] With social development and technological progress, the packaging industry has also experienced rapid growth, and packaging structures with thermal insulation functions are receiving increasing attention. However, current technology lacks methods or devices for quickly and accurately evaluating the thermal insulation effect of thermal insulation coatings. A commonly used method for evaluating thermal insulation effect is to test the thermal conductivity of the material. This method requires the thermal insulation coating to be prepared into a specific shape. This testing method is not only time-consuming and labor-intensive, but also sometimes differs significantly from the actual application process of the thermal insulation coating, causing uncertainties and interference in the evaluation, resulting in inaccurate test results. Utility Model Content

[0003] The purpose of this utility model is to provide a device for quickly evaluating the thermal insulation effect of thermal insulation coatings. The device aims to solve the technical problems of time-consuming, labor-intensive, and inaccurate testing methods for the thermal insulation effect of thermal insulation coatings in the prior art.

[0004] This utility model discloses a device for rapidly evaluating the thermal insulation effect of thermal insulation coatings, comprising a heating plate, a heating device disposed in the heating plate, a metal plate disposed on the upper side of the heating plate, a temperature measuring device disposed on the side of the metal plate, a metal mesh disposed parallel above the metal plate, a gap being provided between the metal mesh and the metal plate, a support frame being connected to the side of the metal mesh, a wrapping paper disposed on the upper side of the metal mesh, at least two temperature measuring papers being disposed horizontally spaced above the wrapping paper, and a windproof cover disposed on the upper side of the heating plate, covering the heating plate, the metal plate, the metal mesh, the wrapping paper, and the temperature measuring papers.

[0005] Furthermore, the heating device includes a tortuous copper heat-conducting oil pipe disposed in the heating plate, with both ends of the copper heat-conducting oil pipe connected to the outlet and inlet of a mold temperature controller, respectively.

[0006] Furthermore, the heating plate is made of marble or refractory brick material.

[0007] Furthermore, the area of ​​the heating plate is larger than the area of ​​the metal plate.

[0008] Furthermore, the heat-conducting oil copper pipe is semi-cylindrical, with the flat side of the semi-cylindrical shape facing upwards and coinciding with the upper surface of the heating plate.

[0009] Furthermore, the metal plate is a stainless steel plate, an iron plate, or a copper plate.

[0010] Furthermore, the metal mesh is a stainless steel mesh.

[0011] Furthermore, the metal mesh is surrounded by a border.

[0012] Furthermore, the temperature measuring device is a thermocouple or a thermometer.

[0013] Compared with existing technologies, the advantages of this invention are positive and significant. This invention can quickly and accurately compare and evaluate the thermal insulation effects of different thermal insulation coatings without requiring them to be prepared in a specific shape. The sample preparation method during testing is similar to the actual application process of thermal insulation coatings, thus more accurately reflecting the actual effects of different thermal insulation coatings. This provides a faster and more accurate evaluation method for the research and development of thermal insulation coatings, improving the efficiency of thermal insulation coating research and development. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of a device for rapidly evaluating the thermal insulation effect of thermal insulation coatings according to the present invention.

[0015] Figure 2 This is a top view of the heat-conducting oil copper pipe in a device for rapidly evaluating the thermal insulation effect of thermal insulation coatings according to this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0017] like Figures 1-2 As shown, this utility model discloses a device for rapidly evaluating the thermal insulation effect of thermal insulation coatings, comprising a heating plate 1, a heating device disposed in the heating plate 1, a metal plate 3 disposed on the upper side of the heating plate 1, a temperature measuring device (not shown in the figure) disposed on the side of the metal plate 3, a metal mesh 4 disposed parallel above the metal plate 3, a gap being provided between the metal mesh 4 and the metal plate 3, a support frame (not shown in the figure) being connected to the side of the metal mesh 4, a wrapping paper 5 disposed on the upper side of the metal mesh 4, at least two temperature measuring papers 7 being disposed horizontally spaced above the wrapping paper 5, and a windproof cover 8 disposed on the upper side of the heating plate 1, covering the heating plate 1, the metal plate 3, the metal mesh 4, the wrapping paper 5, and the temperature measuring papers 7.

[0018] Furthermore, the heating device includes a tortuous copper heat-conducting oil pipe 2 disposed in the heating plate 1, with both ends of the copper heat-conducting oil pipe 2 connected to the outlet and inlet of a mold temperature controller (not shown in the figure), respectively.

[0019] Furthermore, the heating plate 1 is made of marble or refractory brick material.

[0020] Furthermore, the area of ​​the heating plate 1 is larger than the area of ​​the metal plate 3.

[0021] Furthermore, the heat-conducting oil copper pipe 2 is semi-cylindrical, with the flat side of the semi-cylindrical shape facing upwards and coinciding with the upper surface of the heating plate 1.

[0022] Furthermore, the metal plate 3 is a stainless steel plate, an iron plate, or a copper plate.

[0023] Furthermore, the metal mesh 4 is a stainless steel mesh.

[0024] Furthermore, the metal mesh 4 is provided with a border around its perimeter.

[0025] Furthermore, the temperature measuring device is a thermocouple or a thermometer.

[0026] Specifically, the specific structure and principle of the heating device, metal plate 3, temperature measuring device, metal mesh 4, support frame, packaging paper 5, temperature measuring paper 7, mold temperature controller, thermocouple, thermometer and other components in this utility model, as well as other aspects not described in detail, all adopt known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0027] The working principle of this embodiment:

[0028] The temperature measuring device can measure the actual temperature of the metal plate 3. A support frame supports the metal mesh 4, ensuring it is installed parallel to the metal plate 3. The packaging paper 5 is of uniform and flat material. Different areas of the packaging paper 5 are coated with different insulating coatings 6 of uniform thickness and size. Each type of insulating coating 6 has a uniformly sized temperature measuring paper 7 adhered to it. The temperature measuring paper 7 is a heat-sensitive paper with adhesive backing, allowing it to adhere tightly to the insulating coating 6. The temperature value of the area where the color changes is the measured temperature value.

[0029] During the test, the mold temperature controller was turned on and heat transfer oil at a certain temperature was introduced into the copper heat transfer oil pipe 2 to heat the metal plate 3. The mold temperature controller can adjust the temperature of the heat transfer oil. The copper heat transfer oil pipe 2 is zigzag to ensure uniform heating temperature. After several minutes, the color change of the temperature measuring paper 7 on each insulation coating 6 was compared to determine the heat insulation effect of each insulation coating 6. The lower the temperature shown by the temperature measuring paper 7, the better the heat insulation effect of the insulation coating 6.

[0030] The gap between the metal mesh 4 and the metal plate 3 is used to avoid uneven heat transfer at the contact point between the metal mesh 4 and the metal plate 3, which would affect the results of the comparative test. The mesh size of the metal mesh 4 reduces obstruction to heat transfer. The main function of the wind shield 8 is to reduce the influence of ambient airflow on the temperature of different areas, thereby reducing the impact of environmental factors on the test results.

[0031] This invention can quickly and accurately compare and evaluate the thermal insulation effects of different thermal insulation coatings 6. It does not require preparation into a specific shape. The sample preparation method during testing is close to the actual application process of thermal insulation coatings, which can more accurately reflect the actual effects of different thermal insulation coatings 6. It provides a faster and more accurate evaluation method for the research and development process of thermal insulation coatings and improves the research and development efficiency of thermal insulation coatings.

[0032] Example 1:

[0033] First, heat the metal plate 3 to 50℃. Then, apply the prepared thermal insulation coating 1 and thermal insulation coating 2 to the same piece of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coating 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on thermal insulation coating 1 is 37℃, while the temperature of the temperature measuring paper 7 on thermal insulation coating 2 is 41℃, proving that the thermal insulation effect of thermal insulation coating 1 is better than that of thermal insulation coating 2.

[0034] Example 2:

[0035] First, heat the metal plate 3 to 80℃. Then, apply the prepared thermal insulation coating 1 and thermal insulation coating 2 to the same piece of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coating 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on thermal insulation coating 1 is 67℃, and the temperature of the temperature measuring paper 7 on thermal insulation coating 2 is 76℃, proving that the thermal insulation effect of thermal insulation coating 1 is better than that of thermal insulation coating 2.

[0036] Example 3:

[0037] First, heat the metal plate 3 to 65℃. Then, apply the prepared thermal insulation coating 1 and thermal insulation coating 2 to the same piece of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coating 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on thermal insulation coating 1 is 43℃, and the temperature measuring paper 7 on thermal insulation coating 2 is 55℃, proving that the thermal insulation effect of thermal insulation coating 1 is better than that of thermal insulation coating 2.

[0038] Example 4:

[0039] First, heat the metal plate 3 to 80℃. Then, apply the prepared thermal insulation coatings 3 and 4 to the same sheet of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coatings 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on the thermal insulation coating 3 is 52℃, while the temperature measuring paper 7 on the thermal insulation coating 4 is 79℃, proving that the thermal insulation effect of thermal insulation coating 3 is better than that of thermal insulation coating 4.

[0040] Example 5:

[0041] First, heat the metal plate 3 to 70℃. Then, apply the prepared thermal insulation coatings 3 and 4 to the same piece of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coatings 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on the thermal insulation coating 3 is 46℃, and the temperature measuring paper 7 on the thermal insulation coating 4 is 58℃, proving that the thermal insulation effect of thermal insulation coating 3 is better than that of thermal insulation coating 4.

[0042] Example 6:

[0043] First, heat the metal plate 3 to 60℃. Then, apply the prepared thermal insulation coatings 3 and 4 to the same sheet of uniform packaging paper 5. After the coatings are fully dry, attach temperature measuring paper 7 to the thermal insulation coatings 6. The temperature range of the temperature measuring paper 7 is 37-80℃, and the color change span is 3℃. Place the packaging paper 5 on the metal mesh 4. After 10 minutes, observe the color change temperature range of the temperature measuring paper 7. The temperature of the temperature measuring paper 7 on the thermal insulation coating 3 is 37℃, while the temperature of the temperature measuring paper 7 on the thermal insulation coating 4 is 46℃, proving that the thermal insulation effect of thermal insulation coating 3 is better than that of thermal insulation coating 4.

Claims

1. A device for rapidly evaluating the thermal insulation effect of thermal insulation paint, characterized in that, The heating plate is provided with a heating device, a metal plate on the upper side of the heating plate, a temperature measuring device on the side of the metal plate, a metal mesh parallel to the metal plate above the metal plate, a gap between the metal mesh and the metal plate, a support frame connected to the side of the metal mesh, a wrapping paper on the upper side of the metal mesh, at least two temperature measuring papers horizontally and separately arranged above the wrapping paper, and a wind shield on the upper side of the heating plate.

2. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The heating device comprises a zigzag-shaped heat-conducting oil copper pipe arranged in the heating plate, and the two ends of the heat-conducting oil copper pipe are respectively communicated with the outlet and the inlet of a mold temperature controller.

3. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The heating plate is made of marble or refractory brick material.

4. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The area of the heating plate is larger than that of the metal plate.

5. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 2, characterized in that, The heat-conducting oil copper pipe is in a semi-cylindrical shape, and the plane in the semi-cylindrical shape faces upward and coincides with the upper surface of the heating plate.

6. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The metal plate is a stainless steel plate, an iron plate or a copper plate.

7. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The metal mesh is a stainless steel mesh.

8. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The metal mesh is provided with a frame around.

9. The device for rapidly evaluating the heat insulation effect of heat insulation paint according to claim 1, characterized in that, The temperature measuring device is a thermocouple or a thermometer.

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