A test device for anti-icing coatings using rapid cooling with liquid carbon dioxide

Abstract

This utility model relates to the field of anti-icing coating testing technology, and provides an anti-icing coating testing device using rapid cooling with liquid carbon dioxide. The device includes an aluminum substrate, an aluminum vaporization grid, and a test sample. The test sample is positioned on the top of the aluminum substrate, and the aluminum vaporization grid is positioned on the bottom of the aluminum substrate. A liquid carbon dioxide inlet is located in the middle of the left side of the aluminum vaporization grid, and a carbon dioxide outlet is located in the middle of the right side of the aluminum vaporization grid. This utility model utilizes the principle of heat absorption during liquid carbon dioxide vaporization to rapidly reduce the temperature of the aluminum substrate in a short time, quickly simulating the icing / icing phenomenon under actual extreme low-temperature environments. Compared to traditional testing methods, this significantly shortens the testing cycle, allowing for rapid testing of the anti-icing coating performance, effectively improving testing efficiency, and saving considerable time and costs for research and development and production. Simultaneously, the realistic simulation of extreme environments enhances the practicality and reference value of the test results.

Description

Technical Field

[0001] This utility model relates to the field of anti-icing coating testing technology, and in particular to an anti-icing coating testing device that uses liquid carbon dioxide for rapid cooling. Background Technology

[0002] In nature, when the ambient temperature drops below 0°C and the air humidity is high, or when there is rain or snow, ice formation / icing occurs on material surfaces. As the temperature changes, the ice layer either stops growing or thickens rapidly. While ice formation / icing has aesthetic value in the arts, such as beautiful ice crystal landscapes and exquisite ice sculptures, it poses numerous hazards in industry and society. In aviation, ice formation / icing on aircraft surfaces significantly affects their aerodynamic performance, threatening flight safety; in power transmission, icing can overload power lines, causing line breaks, tower collapses, and other accidents, severely impacting the stable operation of the power system.

[0003] Currently, while existing anti-icing coating testing devices can perform preliminary verification of the anti-icing performance of coatings, they still have many limitations:

[0004] Firstly, testing conditions are limited. Most devices use cooling chips based on the Peltier effect of semiconductor materials. Due to the limitation of their cooling power, it is difficult to create an extreme low temperature environment as low as -50°C, and thus cannot fully simulate real harsh working conditions.

[0005] Secondly, the testing efficiency is low. In the process of simulating extreme low temperature environment, a lot of time needs to be spent observing the freezing process, which not only prolongs the testing cycle, but also increases the testing cost. Utility Model Content

[0006] The purpose of this invention is to provide a test device for anti-icing coatings that uses liquid carbon dioxide for rapid cooling. By using this device, the above-mentioned problems can be solved.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a test device for anti-icing coating with rapid cooling by liquid carbon dioxide, comprising an aluminum substrate, an aluminum vaporization grid and a test sample. The test sample is provided on the top of the aluminum substrate, the aluminum vaporization grid is provided on the bottom of the aluminum substrate, a liquid carbon dioxide inlet is provided at the middle position on the left side of the aluminum vaporization grid, a carbon dioxide outlet is provided at the middle position on the right side of the aluminum vaporization grid, and a temperature control component is provided around the bottom of the aluminum substrate.

[0008] Preferably, the test sample is provided with sample fixing clips on both sides, the sample fixing clips are installed on both sides of the top of the aluminum substrate, and the aluminum substrate is provided with fixing screws on both sides.

[0009] Preferably, two sets of template fixing clips are provided, with the two sets of template fixing clips on both sides of the top center line of the aluminum substrate.

[0010] Preferably, the temperature control component includes temperature probes installed around the bottom of an aluminum substrate, a temperature controller at one end of the aluminum substrate, and an electromagnetic regulating valve at the liquid carbon dioxide inlet.

[0011] Preferably, four sets of temperature probes are provided, and the four sets of temperature probes are connected to the temperature controller, which is connected to the electromagnetic regulating valve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a liquid carbon dioxide rapid cooling anti-icing coating testing device. Utilizing the principle of heat absorption during liquid carbon dioxide vaporization, it can rapidly reduce the temperature of an aluminum substrate in a short time, quickly simulating the icing / icing phenomenon under actual extreme low-temperature environments. Compared to traditional testing methods, this significantly shortens the testing cycle, enabling rapid testing of the anti-icing coating performance, effectively improving testing efficiency, and saving considerable time and costs for R&D and production. Simultaneously, the realistic simulation of extreme environments enhances the practicality and reference value of the test results.

[0014] 2. This utility model provides a liquid carbon dioxide rapid cooling anti-icing coating testing device. By optimizing the injection and control process of liquid carbon dioxide, the cooling process is precisely controlled. When the temperature reaches the set value, the temperature controller promptly closes the electromagnetic regulating valve to stop the injection of liquid carbon dioxide, avoiding energy waste and reducing energy consumption. Simultaneously, the efficient testing process reduces experimental time, indirectly lowering the operating cost of the equipment. This allows the entire testing process to achieve improved economy and energy efficiency while ensuring effectiveness.

[0015] 3. This utility model provides a liquid carbon dioxide rapid cooling anti-icing coating testing device. The device is equipped with a temperature probe to monitor the temperature of an aluminum substrate in real time and feeds the data back to a temperature controller, achieving precise control of the temperature field. By combining real-time temperature data with direct observation of icing / icing on the sample surface, testers can comprehensively and accurately evaluate the performance of the anti-icing coating. This multi-dimensional data acquisition and evaluation method, compared to single observation methods, ensures the accuracy and reliability of the test results, providing solid data support for determining the performance of the anti-icing coating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the testing device structure of this utility model.

[0017] The following are the labels in the figure: 1. Aluminum substrate; 11. Fixing screw; 12. Sample fixing clip; 2. Liquid carbon dioxide inlet; 21. Electromagnetic regulating valve; 3. Carbon dioxide outlet; 4. Aluminum vaporization grid; 5. Temperature controller; 51. Temperature probe; 6. Test sample. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0020] Combination Figure 1 As shown, the present invention discloses a liquid carbon dioxide rapid cooling anti-icing coating testing device, comprising an aluminum substrate 1, an aluminum vaporization grid 4, and a test sample 6. The test sample 6 is provided on the top of the aluminum substrate 1, the aluminum vaporization grid 4 is provided on the bottom of the aluminum substrate 1, a liquid carbon dioxide inlet 2 is provided at the middle position on the left side of the aluminum vaporization grid 4, a carbon dioxide outlet 3 is provided at the middle position on the right side of the aluminum vaporization grid 4, and a temperature control component is provided around the bottom of the aluminum substrate 1.

[0021] The test sample 6 is provided with sample fixing clips 12 on both sides. The sample fixing clips 12 are installed on both sides of the top of the aluminum substrate 1. The aluminum substrate 1 is provided with fixing screws 11 on both sides.

[0022] Two sets of template fixing clips 12 are provided, with the two sets of template fixing clips 12 located on both sides of the top center line of the aluminum substrate 1.

[0023] The temperature control assembly includes temperature probes 51 installed around the bottom of the aluminum substrate 1, a temperature controller 5 at one end of the aluminum substrate 1, and an electromagnetic regulating valve 21 on the liquid carbon dioxide inlet 2.

[0024] There are four sets of temperature probes 51, which are connected to the temperature controller 5. The temperature controller 5 is connected to the electromagnetic regulating valve 21.

[0025] Working principle:

[0026] The working principle of this testing device is based on simulating the icing / icing phenomenon under real extreme low temperature environments, so as to achieve efficient and accurate testing and evaluation of the performance of anti-icing coatings.

[0027] Test sample 6 is an anti-icing coating sample.

[0028] First, the anti-icing coating sample is fixed under the sample clamp 12, ensuring close contact with the panel of the aluminum substrate 1, thus establishing the basic test structure. The required test temperature is set via the temperature controller 5, and the electromagnetic regulating valve 21 is opened, allowing liquid carbon dioxide to be injected into the aluminum vaporization grid 4 through the liquid carbon dioxide inlet 2. During vaporization, the liquid carbon dioxide absorbs a large amount of heat, causing the temperature of the aluminum substrate 1 to drop rapidly, quickly simulating an extreme low-temperature environment. This process can complete the test in a short time, meeting the high-efficiency requirements.

[0029] During the cooling process, the temperature probe 51 continuously monitors the temperature of the aluminum substrate 1 in real time and feeds the data back to the temperature controller 5. When the temperature probe 51 detects that the temperature has reached the preset design temperature, the temperature controller 5 immediately sends a control signal to close the electromagnetic regulating valve 21, stop the injection of liquid carbon dioxide, and precisely control the test environment temperature.

[0030] During the simulation of extreme low-temperature environments, icing / fogging occurred on the surface of test sample 6. Testers could directly observe the icing / fogging situation on the sample surface and, combined with real-time temperature field monitoring data, conduct a comprehensive and accurate evaluation of the anti-icing coating's performance. This combination of real-time temperature field monitoring and intuitive observation ensured the accuracy and reliability of the test results.

[0031] In addition, by optimizing the injection and control process of liquid carbon dioxide, the device reduces experimental time and energy consumption, and lowers equipment costs. It meets the requirements of high efficiency while also taking into account economy, thereby enabling efficient, accurate, and low-cost testing and evaluation of the performance of anti-icing coatings and ensuring the reliability of the equipment in extreme low-temperature environments.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test device for an anti-icing coating using rapid cooling with liquid carbon dioxide, comprising an aluminum substrate (1), an aluminum vaporization grid (4), and a test sample (6), characterized in that: The aluminum substrate (1) has a test sample (6) on top, an aluminum vaporization grid (4) on the bottom, a liquid carbon dioxide inlet (2) on the middle left side of the aluminum vaporization grid (4), a carbon dioxide outlet (3) on the middle right side of the aluminum vaporization grid (4), and a temperature control component around the bottom of the aluminum substrate (1).

2. The anti-icing coating test device for liquid carbon dioxide rapid refrigeration of claim 1, wherein: The test sample (6) is provided with sample fixing clips (12) on both sides. The sample fixing clips (12) are installed on both sides of the top of the aluminum substrate (1). The aluminum substrate (1) is provided with fixing screws (11) on both sides.

3. The anti-icing coating test device for liquid carbon dioxide rapid refrigeration of claim 2, wherein: The template fixing clips (12) are provided in two sets, with the two sets of template fixing clips (12) on both sides of the top center line of the aluminum substrate (1).

4. The anti-icing coating test device for liquid carbon dioxide rapid refrigeration of claim 1, wherein: The temperature control assembly includes temperature probes (51) installed around the bottom of an aluminum substrate (1), a temperature controller (5) is provided at one end of the aluminum substrate (1), and an electromagnetic regulating valve (21) is provided on the liquid carbon dioxide inlet (2).

5. The anti-icing coating test device for rapid carbon dioxide refrigeration of a liquid according to claim 4, characterized in that: The temperature probe (51) is provided in four sets, and the four sets of temperature probes (51) are connected to the temperature controller (5), which is connected to the electromagnetic regulating valve (21).

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