Temperature-controlled test garment

Abstract

The application provides a temperature control test clothes, and relates to the technical field of space engine test, which is used for coating outside the engine shell of a spacecraft, can warm up or cool down the engine to perform temperature control test, and comprises at least one temperature control test module, wherein the temperature control test module comprises: a first clothes layer, the upper surface of the first clothes layer is provided with a liquid flow groove and a plurality of assembly grooves; a second clothes layer, the second clothes layer is glued to the upper surface of the first clothes layer, and the liquid flow groove and the assembly grooves are respectively sealed to form a liquid flow channel and sealed assembly grooves, the second clothes layer is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the head end of the liquid flow channel, and the liquid outlet is communicated with the tail end of the liquid flow channel. The application provides a temperature control test clothes, which can continuously warm up or cool down the engine, the temperature control is accurate, the structural design form can be compatible with various series of engine size, and the engine can be moved when simultaneously performing temperature control test.

Description

Technical Field

[0001] This application relates to the field of aerospace engine testing technology, and in particular to a temperature-controlled testing suit. Background Technology

[0002] In the aviation industry, engines require temperature control testing. Temperature control testing involves heating or cooling the exterior of the engine casing to simulate the actual temperature environment changes it faces during storage, transportation, and operation. This comprehensively assesses the long-term reliability and adaptability of materials, structures, and components, ensuring that the engine maintains stable performance under extreme temperature fluctuations and avoiding structural damage or functional failure caused by thermal stress.

[0003] Current engine temperature control testing requires moving the entire engine into an insulated oven. This oven has a large footprint and a fixed location, making it impossible to move. As a fixed asset, it is expensive and inefficient, as it cannot simultaneously perform ground testing and verification of multiple engines. The overall temperature control testing process in the oven is time-consuming, with each transfer taking at least one to two hours. The oven also cannot achieve high-resolution monitoring of localized engine casing temperatures, leading to distorted thermal stress test data. For high-thrust engines, the overall casing dimensions exceed limits, sometimes making them unsuitable for fixed ovens. The oven uses heated and cooled airflow for heat transfer to the engine surface. The internal airflow at the oven's outlets and vents often contains vortex zones, resulting in insufficient surface temperature uniformity across different engine locations, impacting testing efficiency.

[0004] Furthermore, if the engine needs to be moved during the temperature control test, the engine cannot be moved either because the oven is fixed in place. If the engine is moved, a temperature change will occur after the engine is removed from the oven, which may lead to errors in the overall test data and reduce accuracy. Summary of the Invention

[0005] The purpose of this application is to address the above problems by providing a temperature-controlled testing garment that can continuously heat or cool an engine, with precise temperature control, suitable for engines of various sizes, and allows the engine to be moved during temperature control testing.

[0006] This application provides a temperature control testing garment for covering the exterior of a spacecraft engine casing, capable of heating or cooling the engine for temperature control testing. The garment includes at least one temperature control testing module, comprising: a first layer with a liquid flow channel and multiple assembly slots on its upper surface, the first layer having a thermal conductivity of not less than 1 W / (m·K); and a second layer bonded to the upper surface of the first layer, sealing the liquid flow channel and the assembly slots to form the liquid flow channel and the sealed assembly slots, respectively. The thermal conductivity is no greater than 0.3 W / (m·K). The second layer has a liquid inlet and a liquid outlet. The liquid inlet is connected to the first end of the liquid flow channel, and the liquid outlet is connected to the tail end of the liquid flow channel. A flexible sensor is disposed between the first layer and the second layer, and multiple temperature sensing units of the flexible sensor are respectively disposed in multiple assembly slots. An insulation layer is bonded to the upper surface of the second layer. A fixing layer is disposed on the upper surface of the insulation layer. The thermal conductivity of both the fixing layer and the insulation layer is less than that of the second layer.

[0007] According to the technical solutions provided in certain embodiments of this application, both the first coating layer and the second coating layer are formed to net size by a customized mold process. The first coating layer is made of modified flexible high-temperature resistant silicone rubber, and the second coating layer is made of modified flexible low-temperature resistant silicone rubber.

[0008] According to the technical solutions provided in certain embodiments of this application, the temperature resistance range of the first and second coating layers is from -50°C to 70°C, and the material hardness of the first and second coating layers is between 30HA and 60HA.

[0009] According to the technical solutions provided in certain embodiments of this application, the projection of the temperature control test module on the horizontal plane is rectangular, and the liquid flow channel includes: a first flow channel segment, which is opened parallel to one side of the temperature control test module, and one end of the first flow channel segment is connected to the liquid inlet; a second flow channel segment, which is opened parallel to the other side of the temperature control test module and is perpendicular to the first flow channel segment, and one end of the second flow channel segment is connected to the end of the first flow channel segment that is not connected to the liquid inlet; a third flow channel segment, which is opened parallel to the other side of the temperature control test module, is perpendicular to the first flow channel segment, is parallel to the second flow channel segment, and one end of the third flow channel segment is connected to the liquid outlet; and a fourth flow channel segment, whose two ends are respectively connected to the end of the third flow channel segment that is not connected to the liquid outlet and the end of the second flow channel segment that is not connected to the first flow channel segment, and the fourth flow channel segment is S-shaped.

[0010] According to the technical solutions provided in certain embodiments of this application, the lower surface of the second garment layer is provided with a plurality of first assembly protrusions and a plurality of second assembly protrusions in the area corresponding to the plurality of assembly slots. The protrusion height of the first assembly protrusions is greater than the protrusion height of the second assembly protrusions. The plurality of first assembly protrusions and the plurality of second assembly protrusions can be inserted into the plurality of assembly slots one by one and then glued to bond the second garment layer to the first garment layer and form the liquid flow channel.

[0011] According to the technical solutions provided in certain embodiments of this application, the thermal conductivity of the insulation layer is not greater than 0.03 W / (m·K); the fixing layer is Velcro material or strapping.

[0012] According to the technical solutions provided in certain embodiments of this application, the liquid inlet and the liquid outlet are located on the same side edge of the second coating layer.

[0013] According to the technical solutions provided in certain embodiments of this application, the flexible sensor includes a flexible substrate and a sensor connector laid in multiple assembly slots. Multiple temperature sensing units are electrically connected to the sensor connector through temperature sensing circuits extending along the assembly slots. The thickness of the flexible substrate, the temperature sensing units, and the temperature sensing circuits is less than 0.5mm-2mm. The flexible sensor is electrically connected to an external power supply.

[0014] According to the technical solutions provided in certain embodiments of this application, the assembly groove and the assembly protrusion have a gap of 0.2mm to 0.7mm after insertion to enable bonding.

[0015] According to the technical solutions provided in certain embodiments of this application, the temperature control test garment is integrally formed by a mold, and the temperature control test garment includes: the number of temperature control test modules is three, and the three temperature control test modules are arranged in parallel to form the temperature control test garment.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: A liquid flow channel and multiple assembly slots are formed in the first layer. After the first and second layers are bonded together, a sealed liquid flow channel and sealed assembly slots can be directly formed. An inlet and an outlet are formed in the second layer, and these inlets and outlets are respectively connected to the beginning and end of the liquid flow channel to form a liquid circuit. Therefore, by controlling the temperature of the liquid introduced into the temperature control testing module, the temperature control testing garment can be heated. After the temperature control testing garment is wrapped around the outside of the engine housing, the engine can be heated or cooled to reach the target temperature for temperature control testing. The thermal conductivity of the first layer is not less than 1 W / (m·K), and the thermal conductivity of the second layer is not greater than 0.3 W / (m·K), thus heat can be transferred towards the engine, preventing heat transfer from the second layer to the outside. The thermal conductivity of both the insulation and fixing layers is lower than that of the second layer. Therefore, a gradient insulation effect can be formed through the first, second, insulation, and fixing layers. Heat is transferred from the first layer towards the engine, preventing heat transfer from the second layer towards the insulation and fixing layers to the outside. Multiple temperature-sensing units of the flexible sensor can detect temperature at multiple locations, improving the temperature control accuracy of the temperature-controlled test garment. The direct liquid flow channel design allows direct contact between the first layer (the heat-conducting material) and the heated liquid. Compared to using a water pipe between the first and second layers to transfer heat, this avoids heat loss caused by heat transfer between the two materials, ensuring accurate temperature control and faster temperature transfer. Furthermore, unlike using a water pipe which expands and reduces the contact area with the first layer, the direct flow channel design maintains a stable contact area, resulting in uniform heat transfer to the first layer and the engine casing, thus ensuring accurate test data. This method utilizes a heated liquid for temperature transfer, avoiding the use of heating wires, preventing static electricity buildup, and thus preventing the combustion of propellants inside the engine due to static electricity, thereby improving the safety of the temperature control testing garment. The temperature control testing garment of this application simply covers the outside of the engine casing, unaffected by environmental conditions or location restrictions. During testing, the temperature control testing garment can be moved synchronously with the engine, while still ensuring the accuracy of the engine temperature control test data.

[0017] It should be understood that the descriptions of technical features, technical solutions, beneficial effects, or similar language in this application do not imply that all features and advantages can be achieved in any single embodiment. Rather, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution, or beneficial effect is included in at least one embodiment. Therefore, the descriptions of technical features, technical solutions, or beneficial effects in this specification do not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions, and beneficial effects described in this embodiment can be combined in any suitable manner. Those skilled in the art will understand that embodiments can be implemented without one or more specific technical features, technical solutions, or beneficial effects of a particular embodiment. In other embodiments, additional technical features and beneficial effects may be identified in specific embodiments that do not embody all embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a temperature control testing garment provided in an embodiment of this application, which hides the insulation layer and the fixing layer;

[0020] Figure 2 A cross-sectional view of a temperature control testing unit of a temperature control testing garment provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of a temperature control testing unit of a temperature control testing garment provided in an embodiment of this application, which hides the insulation layer and the fixing layer;

[0022] Figure 4 This is a schematic diagram of the structure of the first layer of a temperature control testing unit provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the second layer of a temperature control testing unit provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the structure of a flexible sensor for a temperature control testing unit provided in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram showing the connection between a temperature-controlled testing garment and a water supply pipeline system and an intelligent temperature control system, provided as an embodiment of this application.

[0026] The text labels in the image represent:

[0027] 100. Temperature control testing garment;

[0028] 10. Temperature control testing module;

[0029] 1. First layer of clothing;

[0030] 11. Liquid flow channel; 111. First flow channel section; 112. Second flow channel section; 113. Third flow channel section; 114. Fourth flow channel section;

[0031] 12. Assembly tank; 13. Fluid flow tank;

[0032] 2. Second layer of clothing;

[0033] 21. Liquid inlet; 22. Liquid outlet; 23. First assembly protrusion; 24. Second assembly protrusion;

[0034] 3. Insulation layer; 4. Fixing layer;

[0035] 5. Flexible sensor; 51. Flexible substrate; 52. Temperature sensing unit; 53. Sensor connector; 54. Temperature sensing circuit;

[0036] 6. First adhesive layer; 7. Second adhesive layer;

[0037] 200. Water supply piping system; 210. Main pipe; 220. Combinator; 221. Diverter; 222. Manifold; 230. Ball valve; 240. Supply branch; 250. Return branch; 260. Return main pipe;

[0038] 300. Intelligent temperature control system; 310. Circulating pump; 320. Heat exchanger; 330. Heater; 340. Temperature sensor; 350. Three-way valve; 360. Compressor; 370. Condenser; 380. Throttling valve; 390. Liquid receiver; 40. Air compressor;

[0039] 400, bracket. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The descriptions in this section are merely illustrative and explanatory, and should not be construed as limiting the scope of protection of this application. Specifically, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the scope of protection of this invention.

[0041] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0042] As mentioned in the background section, aerospace engines require temperature control testing. Temperature control testing involves heating or cooling the exterior of the engine casing to simulate the actual temperature changes it faces during storage, transportation, and operation. This comprehensively assesses the long-term reliability and adaptability of materials, structures, and components, ensuring the engine maintains stable performance under extreme temperature fluctuations and preventing structural damage or functional failure due to thermal stress.

[0043] Current engine temperature control testing requires moving the entire engine into an insulated oven. This oven has a large footprint and a fixed location, making it impossible to move. As a fixed asset, it is expensive and inefficient, as it cannot simultaneously perform ground testing and verification of multiple engines. The overall temperature control testing process in the oven is time-consuming, with each transfer taking at least one to two hours. The oven also cannot achieve high-resolution monitoring of localized engine casing temperatures, leading to distorted thermal stress test data. For high-thrust engines, the overall casing dimensions exceed limits, sometimes making them unsuitable for fixed ovens. The oven uses heated and cooled airflow for heat transfer to the engine surface. The internal airflow at the oven's outlets and vents often contains vortex zones, resulting in insufficient surface temperature uniformity across different engine locations, impacting testing efficiency.

[0044] Furthermore, if the engine needs to be moved during the temperature control test, the engine cannot be moved either because the oven is fixed in place. If the engine is moved, a temperature change will occur after the engine is removed from the oven, which may lead to errors in the overall test data and reduce accuracy.

[0045] To address the problems in the prior art, this embodiment provides a temperature control testing suit 100. The temperature control testing suit 100 is used to cover the exterior of a spacecraft engine casing, enabling it to heat or cool the engine for temperature control testing. The following description, in conjunction with the appendix, details the specific requirements. Figure 1-7 The temperature control test garment 100 of this application is described in detail.

[0046] like Figure 1 As shown, this is the temperature control test garment 100 of this application. Figure 3The image shows the temperature control testing module 10 of the temperature control testing garment 100 of this application, with the insulation layer 3 and the fixing layer 4 concealed. The temperature control testing garment 100 includes at least one temperature control testing module 10. "At least one" indicates a minimum of one module; therefore, the temperature control testing garment 100 may include one, two, three, four, or more temperature control testing modules 10.

[0047] like Figure 2 As shown, the temperature control test module 10 includes a first clothing layer 1, a second clothing layer 2, a heat insulation layer 3, a fixing layer 4, and a flexible sensor 5.

[0048] Specifically, such as Figure 4 As shown, the upper surface of the first coating layer 1 has a liquid flow groove 13 and multiple assembly grooves 12. The thermal conductivity of the first coating layer 1 is not less than 1 W / (m·K). As the structure that directly contacts the engine housing for heat transfer, the first coating layer 1 needs to have high thermal conductivity, with a thermal conductivity of not less than 1 W / (m·K), thus ensuring efficient heat transfer and reducing heat loss. Figure 5 The diagram shows the second garment layer 2. The second garment layer 2 is glued to the upper surface of the first garment layer 1, thereby forming a structure as shown in the diagram. Figure 3 The temperature control test module 10 is shown. (As shown) Figure 2 As shown, the second coating layer 2 is bonded to the upper surface of the first coating layer 1, and seals the liquid flow channel 13 and the assembly groove 12 respectively to form a liquid flow channel 11 with the first coating layer 1 and a sealed assembly groove 12. The thermal conductivity of the second coating layer 2 is not greater than 0.3 W / (m·K). As a structural layer that forms the liquid flow channel 11 with the first coating layer 1, the second coating layer 2 needs to ensure that heat is transferred towards the engine housing, and needs to prevent heat from being transferred in the direction away from the engine housing, thereby preventing heat leakage.

[0049] Therefore, by bonding the first coating layer 1 and the second coating layer 2, the liquid flow groove 13 in the first coating layer 1 is sealed to form a liquid flow channel 11 integrated with the temperature control test module 10. Compared with the method of introducing liquid through a water pipe, where the water pipe expands and the contact area with the first coating layer 1 decreases, the method of directly forming a flow channel can ensure that the contact area with the first coating layer 1 remains stable, thereby making the heat transfer to the first coating layer 1 area uniform and the heat transfer to the engine housing uniform, thus ensuring the accuracy of the test data.

[0050] like Figure 5As shown, the second layer 2 has a liquid inlet 21 and a liquid outlet 22. The liquid inlet 21 is connected to the first end of the liquid flow channel 11, and the liquid outlet 22 is connected to the last end of the liquid flow channel 11. This forms a loop for circulating water supply and drainage, thus enabling the internal circulation of water to the temperature control test module 10. By controlling the temperature of the liquid introduced into the temperature control test module 10, the temperature control test garment 100 is heated. After the temperature control test garment 100 is wrapped around the outside of the engine housing, the engine can be heated or cooled to reach the target temperature for temperature control testing. The direct generation of the flow channel allows the first layer 1, which is a heat-conducting material, to directly contact the heated liquid. Compared to setting a water pipe between the first layer 1 and the second layer 2 and transferring heat through the water pipe, this avoids heat loss caused by heat transfer between the two materials, ensuring the accuracy of temperature control and providing a faster temperature transfer speed.

[0051] Furthermore, the use of a heated liquid for temperature transfer results in rapid heating and reduced test preparation time. This avoids the use of heating wires, preventing static electricity buildup and thus avoiding the combustion of propellants inside the engine due to static electricity, thereby improving the safety of the temperature control test suit 100. The temperature control test suit 100 of this application simply covers the outside of the engine casing, unaffected by environmental conditions or location restrictions. During testing, the temperature control test suit 100 can be moved synchronously with the engine, while still ensuring the accuracy of the engine temperature control test data.

[0052] like Figure 2 and Figure 4 As shown, the flexible sensor 5 is positioned between the first layer 1 and the second layer 2, and multiple temperature-sensing units 52 of the flexible sensor 5 are respectively positioned within multiple mounting slots 12. Therefore, the multiple temperature-sensing units 52 of the flexible sensor 5 can detect temperature at multiple locations, making the temperature detection more accurate and thus improving the temperature control accuracy of the temperature-controlled testing garment 100. The flexible sensor 5 enables temperature measurement, ensuring the temperature control accuracy of the temperature-controlled testing garment 100, specifically within ±1℃, while international requirements stipulate a temperature control accuracy within ±2℃. The flexible sensor 5 can conform to the engine housing along with the temperature-controlled testing garment 100.

[0053] like Figure 2 As shown, the temperature control testing module 10 also includes an insulation layer 3 and a fixing layer 4. The insulation layer 3 is bonded to the upper surface of the second clothing layer 2, as shown. Figure 2As shown, the insulation layer 3 is bonded to the upper surface of the second layer 2 to form a second adhesive layer 7. The overall adhesive strength is high, preventing the insulation layer 3 from detaching from the second layer 2. A fixing layer 4 is disposed on the upper surface of the insulation layer 3. The thermal conductivity of both the fixing layer 4 and the insulation layer 3 is lower than that of the second layer 1. Thus, the insulation performance can be further improved through the insulation layer 3 and the fixing layer 4, preventing heat loss.

[0054] According to the temperature control test garment 100 of this application, a liquid flow channel 13 and multiple assembly slots 12 are formed in the first garment layer 1. After the first garment layer 1 and the second garment layer 2 are glued together, a sealed liquid flow channel 13, i.e., a liquid flow channel 11, and sealed assembly slots 12 can be directly formed. An inlet 21 and an outlet 22 are formed on the second garment layer 2, and the inlet 21 and the outlet 22 are respectively connected to the beginning and end of the liquid flow channel 11 to form a liquid circuit. Thus, by controlling the temperature of the liquid introduced into the temperature control test module 10, the temperature control test garment 100 can be heated. After the temperature control test garment 100 is wrapped around the outside of the engine housing, the engine can be heated or cooled to reach the target temperature for temperature control testing. The thermal conductivity of the first garment layer 1 is not less than 1 W / (m·K), and the thermal conductivity of the second garment layer 2 is not greater than 0.3 W / (m·K). Therefore, heat can be transferred to the direction of the engine, while preventing heat from being transferred to the outside from the second garment layer 2. The thermal conductivity of both the insulation layer 3 and the fixing layer 4 is lower than that of the second layer 2. Therefore, a gradient insulation effect can be formed through the first layer 1, the second layer 2, the insulation layer 3, and the fixing layer 4. That is, heat is transferred towards the engine through the first layer 1, while preventing heat from being transferred to the outside through the second layer 2 towards the insulation layer 3 and the fixing layer 4. The multiple temperature sensing units 52 of the flexible sensor 5 can detect temperature at multiple locations, thereby improving the temperature control accuracy of the temperature control test garment 100. The direct generation of the liquid flow channel 11 allows the first layer 1, which is a heat-conducting material, to be in direct contact with the heated liquid. Compared to the method of placing a water pipe between the first layer 1 and the second layer 2 and transferring heat by passing liquid through the water pipe, this avoids heat loss caused by heat transfer between the two materials, ensuring the accuracy of temperature control and providing a fast temperature transfer speed. Furthermore, compared to using a water pipe to introduce liquid, which expands and reduces the contact area with the first layer 1, the direct flow channel method ensures a stable contact area with the first layer 1. This results in uniform heat transfer to the first layer 1 and the engine casing, thus guaranteeing the accuracy of the test data. Using a heated liquid for temperature transfer avoids the need for heating wires, preventing static electricity and thus preventing the combustion of propellant inside the engine due to static electricity, improving the safety of the temperature control test garment 100. The temperature control test garment 100 of this application simply covers the outside of the engine casing, unaffected by environmental conditions or location restrictions. During testing, the temperature control test garment 100 can be moved synchronously with the engine while still ensuring the accuracy of the engine temperature control test data.

[0055] In some embodiments of this application, such as Figure 3 and Figure 4As shown, the projection of the temperature control test module 10 onto the horizontal plane is rectangular, that is, the projection of the temperature control test garment 100 when it is laid flat on the ground. The liquid flow channel 11 includes a first flow channel section 111, a second flow channel section 112, a third flow channel section 113, and a fourth flow channel section 114. The first flow channel section 111 is opened parallel to one side of the temperature control test module 10, for example... Figure 4 The left side of the temperature control test module 10 shown. One end of the first flow channel section 111 is connected to the liquid inlet 21, for example... Figure 4 The upper end is shown. The second flow channel section 112 is opened parallel to the other side of the temperature control test module 10, for example... Figure 4 The lower edge of the temperature control test module 10 shown is shown, and the second flow channel section 112 is perpendicular to the first flow channel section 111. One end of the second flow channel section 112 is connected to the end of the first flow channel section 111 that is not connected to the liquid inlet 21. The third flow channel section 113 is opened parallel to the other side of the temperature control test module 10, for example... Figure 4 The upper edge of the temperature control test module 10 shown has a third flow channel section 113 perpendicular to the first flow channel section 111 and parallel to the second flow channel section 112. One end of the third flow channel section 113 is connected to the liquid outlet 22. The two ends of the fourth flow channel section 114 are connected to the end of the third flow channel section 113 that is not connected to the liquid outlet 22 and the end of the second flow channel section 112 that is not connected to the first flow channel section 111, respectively, and the fourth flow channel section 114 is S-shaped.

[0056] Therefore, the liquid flow channels 11 are evenly distributed throughout the temperature-controlled testing garment 100, ensuring a uniform temperature distribution throughout the garment during heat transfer. In other words, when heated liquid is introduced through the inlet 21, the temperature in the inlet 21 region is initially higher than the S-shaped region of the fourth flow channel section 114. As the liquid flows through the second flow channel section 112, the fourth flow channel section 114, and the third flow channel section 113, it gradually transfers the temperature to the corresponding regions and finally exits through the outlet 22, forming a liquid flow cycle. As the temperature is transferred, the liquid that passes through each flow channel section loses heat and its temperature decreases. Therefore, when the liquid passes through the outlet 22, its temperature is lower than when it entered through the inlet 21. The liquid flow channels 11 of this application ensure a uniform overall heat distribution in the temperature-controlled testing module 10.

[0057] It should be noted that, in this application, if Figure 1 , Figure 4 and Figure 5 The directions shown as up, down, left, and right are for ease of description and indicate that the temperature control test garment 100 is in a certain position. Figure 1 , Figure 4 and Figure 5The orientation for placement. In actual use, the temperature control testing garment 100 can be placed according to actual usage needs.

[0058] In some embodiments of this application, both the first coating layer 1 and the second coating layer 2 are formed to net dimensions using a custom mold process, which is convenient to form, easy to manufacture, and provides stable and high-precision molding. The first coating layer 1 is made of modified flexible high-temperature resistant silicone rubber, and the second coating layer 2 is made of modified flexible low-temperature resistant silicone rubber.

[0059] Specifically, those skilled in the art will understand that silicone rubber can be modified to achieve both high and low thermal conductivity. As mentioned above, the first coating layer 1, being a structure that directly contacts the engine casing for heat transfer, needs to have high thermal conductivity, with a thermal conductivity of not less than 1 W / (m·K), thus ensuring efficient heat transfer and reducing heat loss. The second coating layer 2, as a structural layer bonded to the first coating layer 1 to form the liquid flow channel 11, needs to ensure heat transfer towards the engine casing and prevent heat transfer away from the engine casing. Therefore, the second coating layer 2 uses a low thermal conductivity material, with a thermal conductivity of not more than 0.3 W / (m·K), thereby preventing heat leakage.

[0060] Furthermore, both the first coating layer 1 and the second coating layer 2 are made of silicone rubber. Using the same material for both structures ensures good compatibility and sealing effect when the first coating layer 1 and the second coating layer 2 are bonded together.

[0061] Furthermore, both the first layer 1 and the second layer 2 are made of silicone rubber. Silicone rubber itself is insulating, thus preventing the generation of static electricity and improving the safety of the temperature control test garment 100.

[0062] In some embodiments of this application, the temperature resistance range of the first coating layer 1 and the second coating layer 2 is -50°C to 70°C, specifically supporting temperature cycling from -50°C to 200°C for more than 5,000 cycles. The material hardness of the first coating layer 1 and the second coating layer 2 is between 30HA and 60HA.

[0063] Specifically, the hardness of the materials of the first layer 1 and the second layer 2 needs to be sufficient to allow the temperature control test garment 100 to conform to the curved surface of the engine housing during use. A hardness less than 30HA will result in high flexibility of the temperature control test garment 100, but reduced abrasion resistance. A hardness greater than 60HA will result in high rigidity of the temperature control test garment 100, leading to poor conformity with the curved surface of the engine housing.

[0064] In some embodiments of this application, such as Figure 2As shown, the lower surface of the second garment layer 2, corresponding to the multiple mounting slots 12, is provided with multiple first mounting protrusions 23 and multiple second mounting protrusions 24. The protrusion height of the first mounting protrusions 23 is greater than that of the second mounting protrusions 24. The multiple first mounting protrusions 23 and multiple second mounting protrusions 24 can be inserted into the multiple mounting slots 12 one-to-one and then glued together to form a first adhesive layer 6, thereby bonding the second garment layer 2 to the first garment layer 1 and forming a liquid flow channel 11.

[0065] Specifically, the assembly protrusion 23 can be inserted into the assembly groove 12. By applying sealant to both the protruding surface of the assembly protrusion 23 and the groove wall of the assembly groove 12, multi-sided bonding between the assembly protrusion 23 and the assembly groove 12 can be ensured, increasing the bonding area and improving sealing performance and bonding strength. The sidewall of the assembly protrusion 23 also intersects with the sidewall of the assembly groove 12, which can prevent the first coating layer 1 and the second coating layer 2 from tearing and separating longitudinally, thereby improving the tensile strength between the first coating layer 1 and the second coating layer 2.

[0066] In some embodiments of this application, the insulation layer 3 can be made of aerogel felt with a thermal conductivity of no more than 0.03 W / (m·K), thus preventing heat transfer to the outside of the temperature control test garment 100. The fixing layer 4 can be made of Velcro or straps, allowing the temperature control test garment 100 to wrap around and cover the outer surface of the engine. Directly sewing the fixing layer 4 to the silicone material of the second garment layer 2 would cause damage to the silicone of the second garment layer 2. Therefore, the fixing layer 4 is first bonded to the insulation layer 3, and then the edges of the two are sewn together. That is, the insulation layer 3 and the fixing layer 4 are encapsulated and formed through an adhesive and sewing process. The insulation layer 3 and the fixing layer 4 can further improve the insulation performance and prevent heat leakage.

[0067] In some embodiments of this application, such as Figure 2 As shown, the assembly groove 12 and the first assembly protrusion 23 have a gap of 0.2mm to 0.7mm after insertion to allow for adhesive bonding. This gap facilitates subsequent adhesive application, ensuring uniform adhesive application between the assembly groove 12 and the assembly protrusion 23, resulting in high bond strength. The second assembly protrusion 24, after insertion into the assembly groove 12, forms a sealed space to accommodate the flexible sensor 5. Adhesive material can be applied to the entire surface of the flexible sensor 5, ensuring stable bonding with both the assembly groove 12 and the second assembly protrusion 24. Furthermore, the adhesive material applied to the flexible sensor 5 can be a thermally conductive adhesive, ensuring temperature transfer while preventing heat loss and guaranteeing temperature detection accuracy.

[0068] In some embodiments of this application, such as Figure 5As shown, the liquid inlet 21 and the liquid outlet 22 are located on the same side edge of the second garment layer 2. The liquid inlet 21 and the liquid outlet 22 are arranged side by side, which can ensure that the temperature of the liquid inlet 21 and the temperature of the liquid outlet 22 are average, and can ensure the overall temperature uniformity of the temperature control test garment 100.

[0069] In some embodiments of this application, such as Figure 6 As shown, the flexible sensor 5 includes a flexible substrate 51 and a sensor connector 53 embedded in multiple assembly slots 12. Multiple temperature sensing units 52 are electrically connected to the sensor connector 53 via temperature sensing circuits 54 extending along the assembly slots 12. The flexible sensor is electrically connected to an external power supply. Temperature measurement can be performed using the flexible sensor 5, ensuring the temperature control accuracy of the temperature-controlled testing garment 100. The thickness of the flexible substrate 51, temperature sensing units 52, and temperature sensing circuits 54 is all less than 1 mm, ensuring that the thickness of the temperature-controlled testing garment 100 is not increased after the flexible sensor 5 is installed.

[0070] In some embodiments of this application, such as Figure 1 As shown, the temperature-controlled testing garment 100 is integrally molded using a mold, thereby improving manufacturing convenience and facilitating production. The temperature-controlled testing garment 100 includes three temperature-controlled testing modules 10, which are arranged side-by-side to form the temperature-controlled testing garment 100. Figure 1 As shown, the temperature control test garment 100 is integrally formed by a mold, forming three temperature control test modules 10 arranged sequentially along the length of the temperature control test garment 100.

[0071] Specifically, the engine sizes include engines with a diameter of φ200mm and below, φ300mm engines, and φ500mm engines. Therefore, the temperature control test garment 100, manufactured using a mold, has three temperature control test modules 10. As mentioned earlier, each temperature control test module 10 has a liquid flow channel 11, thus allowing for independent operation. This enables tailoring to different engine sizes, accommodating smaller engine diameters through cutting and processing. For example, for engines with a diameter of φ200mm and below, a single temperature control test module 10 can be cut and wrapped around the engine casing. For a φ300mm engine, two separate temperature control test modules 10 can be cut and wrapped around the engine casing. For a φ500mm engine, a temperature control test garment 100 with three temperature control test modules 10 can be used to wrap around the engine casing. For larger engines, multiple temperature control test garments 100 can be wrapped around the engine casing for temperature control testing. The temperature control test modules 10 are molded, facilitating manufacturing and achieving high processing precision.

[0072] To facilitate understanding by those skilled in the art, the workflow of the temperature-controlled testing garment 100 provided in this application is further as follows:

[0073] like Figure 7 As shown in the diagram, multiple temperature control test garments 100 are wrapped around an engine. The temperature control test modules 10 of each temperature control test garment 100 are all connected to an external water supply system 200, which in turn is connected to an intelligent temperature control system 300. This allows the intelligent temperature control system 300 to control the temperature of the supplied liquid. The water supply system 200 also enables the circulation and temperature regulation of the liquid, ensuring that the temperature control test garments 100 can effectively control the temperature of the engine casing.

[0074] Therefore, when the liquid passes through the temperature-controlled test garment 100, it can transfer heat to the engine casing through the first layer 1. The temperature of the engine casing can be monitored in real time by the flexible sensor 5, thus achieving precise temperature control.

[0075] This invention is not limited to this; connectors can be provided at both the inlet 21 and the outlet 22 to connect to the end of the pipeline to form a connector. The intelligent temperature control system 300 includes a circulating pump 310, a heat exchanger 320, a heater 330, a temperature sensor 340, a three-way valve 350, a compressor 360, a condenser 370, a throttle valve 380, a liquid storage tank 390, and an air compressor 40. The liquid storage tank 390 can store liquid and deliver it to the temperature control test suit 100. The engine also includes two brackets 400. The water supply pipeline system 200 includes an inlet main pipe 210, a collector 220, a distributor 221, a manifold 222, a ball valve 230, a liquid delivery branch 240, a liquid return branch 250, and a return main pipe 260.

[0076] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A temperature-controlled test garment, characterized in that, The temperature control test suit (100) is used to cover the exterior of the engine casing of a spacecraft, and is capable of heating or cooling the engine for temperature control testing, including: At least one temperature control test module (10), the temperature control test module (10) comprising: The first garment layer (1) has a liquid flow groove (13) and a plurality of assembly grooves (12) on its upper surface, and the thermal conductivity of the first garment layer (1) is not less than 1W / (m·K). The second layer (2) is glued to the upper surface of the first layer (1) and seals the liquid flow channel (13) and the assembly channel (12) to form a liquid flow channel (11) and a sealed assembly channel (12). The thermal conductivity of the second layer (2) is not greater than 0.3 W / (m·K). The second layer (2) has an inlet (21) and an outlet (22). The inlet (21) is connected to the first end of the liquid flow channel (11), and the outlet (22) is connected to the tail end of the liquid flow channel (11). A flexible sensor (5) is disposed between the first garment layer (1) and the second garment layer (2), and a plurality of temperature sensing units (52) of the flexible sensor (5) are respectively disposed in a plurality of the assembly slots (12); The insulation layer (3) is bonded to the upper surface of the second clothing layer (2); A fixing layer (4) is disposed on the upper surface of the insulation layer (3), and the thermal conductivity of both the fixing layer (4) and the insulation layer (3) is less than that of the second clothing layer (2).

2. The temperature-controlled testing garment according to claim 1, characterized in that, Both the first coating layer (1) and the second coating layer (2) are formed to net size by custom mold process. The first coating layer (1) is made of modified flexible high temperature resistant silicone rubber, and the second coating layer (2) is made of modified flexible low temperature resistant silicone rubber.

3. The temperature-controlled testing garment according to claim 2, characterized in that, The temperature resistance range of the first layer (1) and the second layer (2) is from -50°C to 70°C, and the material hardness of the first layer (1) and the second layer (2) is between 30HA and 60HA.

4. The temperature-controlled testing garment according to claim 3, characterized in that, The temperature control test module (10) has a rectangular projection on the horizontal plane, and the liquid flow channel (11) includes: The first flow channel section (111) is opened parallel to one side of the temperature control test module (10), and one end of the first flow channel section (111) is connected to the liquid inlet (21). The second flow channel section (112) is opened parallel to the other side of the temperature control test module (10), and the second flow channel section (112) is perpendicular to the first flow channel section (111). One end of the second flow channel section (112) is connected to the end of the first flow channel section (111) that is not connected to the liquid inlet (21). The third flow channel section (113) is opened parallel to the other side of the temperature control test module (10). The third flow channel section (113) is parallel to the second flow channel section (112). One end of the third flow channel section (113) is connected to the liquid outlet (22). The fourth flow channel section (114) has two ends connected to the end of the third flow channel section (113) that is not connected to the outlet (22) and the end of the second flow channel section (112) that is not connected to the first flow channel section (111), and the fourth flow channel section (114) is arranged in an S-shape.

5. The temperature-controlled testing garment according to claim 4, characterized in that, The lower surface of the second garment layer (2) is provided with a plurality of first assembly protrusions (23) and a plurality of second assembly protrusions (24) in the area corresponding to the plurality of assembly grooves (12). The protrusion height of the first assembly protrusions (23) is greater than the protrusion height of the second assembly protrusions (24). The plurality of first assembly protrusions (23) and the plurality of second assembly protrusions (24) can be inserted into the plurality of assembly grooves (12) one by one and then glued to bond the second garment layer (2) to the first garment layer (1) and form the liquid flow channel (11).

6. The temperature-controlled testing garment according to claim 1, characterized in that, The thermal conductivity of the insulation layer (3) is no greater than 0.03 W / (m·K), and the fixing layer (4) is Velcro material or strap.

7. The temperature-controlled testing garment according to claim 1, characterized in that, The inlet (21) and the outlet (22) are located on the same side edge of the second coating layer (2).

8. The temperature-controlled testing garment according to claim 5, characterized in that, The flexible sensor (5) also includes a flexible substrate (51) and a sensor connector (53) laid in multiple assembly slots (12). Multiple temperature sensing units (52) are electrically connected to the sensor connector (53) through a temperature sensing circuit (54) extending along the assembly slot (12). The thickness of the flexible substrate (51), the temperature sensing unit (52) and the temperature sensing circuit (54) is less than 1 mm. The flexible sensor (5) is electrically connected to an external power source.

9. The temperature-controlled testing garment according to claim 8, characterized in that, The assembly groove (12) has a gap of 0.2 mm to 0.7 mm after being inserted into the first assembly protrusion (23) to allow for adhesive bonding. The second assembly protrusion (24) can form a sealed space after being inserted into the assembly groove (12) to accommodate the flexible sensor (5).

10. The temperature-controlled testing garment according to any one of claims 1-9, characterized in that, The temperature control test garment is integrally formed by a mold, and the temperature control test garment includes: The number of temperature control test modules (10) is three, and the three temperature control test modules (10) are arranged side by side to form a temperature control test garment (100).

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