A multi-zone thermal vacuum environment test simulation system

Abstract

The application discloses a multi-partition thermal vacuum environment test simulation system, which comprises a vacuum tank body, a bottom plate mounting frame, a first bottom plate frame and a second bottom plate frame are arranged in the vacuum tank body; a first low-power liquid cooling temperature control plate, a first high-power liquid cooling temperature control plate and a first radiation heat cage small cabin are mounted on the first bottom plate frame; a second low-power liquid cooling temperature control plate, a second high-power liquid cooling temperature control plate and a second radiation heat cage small cabin are mounted on the second bottom plate frame; an expansion plate type auxiliary heat sink is arranged on the first bottom plate frame and the second bottom plate frame; the temperature controller in the multi-partition thermal vacuum environment test simulation system can control the temperature of each region according to the temperature control requirements of each region, two sets of refrigeration compressors arranged in the temperature controller can make each temperature control region have the ability of independent temperature control, and the technical problems that the temperature of each temperature region in the multi-partition structure of the spacecraft part, component and single machine satellite-borne traveling wave tube amplifier thermal vacuum environment test cannot be independently controlled and each region interferes with each other in the control process are solved.

Description

Technical Field

[0001] This invention belongs to the field of aerospace technology and relates to thermal vacuum testing of spacecraft components and single-unit spaceborne traveling wave tube amplifiers, specifically to a multi-zone thermal vacuum environment testing simulation system. Background Technology

[0002] With the continuous development and upgrading of satellite products, and the increasing degree of mass production, thermal vacuum testing, as a key verification test item for spaceborne traveling wave tube amplifiers in space simulation environment testing, has a long test cycle, high thermal load, and a limited number of test equipment. The single-unit test capacity of traditional thermal vacuum testing equipment can no longer meet the needs of test production. Based on the above situation and the shortcomings of existing conventional thermal vacuum testing equipment, a multi-zone thermal vacuum environment simulation test system is needed to simulate the thermal vacuum test conditions of various parts and components of spacecraft. Through thorough verification with ground equipment, the independent research and development capabilities and technical level of aerospace single units can be continuously improved. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a multi-zone thermal vacuum environment test simulation system, which solves the technical problems in existing technologies where the temperature of each zone in the multi-zone structure of thermal vacuum environment testing of spacecraft parts and component single-unit spaceborne traveling wave tube amplifiers cannot be independently controlled and the zones interfere with each other during the control process.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A multi-zone thermal vacuum environment test simulation system includes a vacuum tank, a base plate mounting frame is provided inside the vacuum tank, a first base plate frame and a second base plate frame are fixedly mounted on the base plate mounting frame, and the first base plate frame is located below the second base plate frame.

[0006] On the first base plate frame, a rectangular plate-shaped first low-power liquid-cooled temperature control plate and a first high-power liquid-cooled temperature control plate are installed in sequence. The long side of the first high-power liquid-cooled temperature control plate is connected to the first radiant heat cage chamber, which is located between the first base plate frame and the second base plate frame.

[0007] The second base plate frame is equipped with a rectangular plate-shaped second low-power liquid-cooled temperature control plate and a second high-power liquid-cooled temperature control plate in sequence. The long side of the second high-power liquid-cooled temperature control plate is connected to the second radiant heat cage chamber.

[0008] An expansion plate type auxiliary heat sink is provided on one side frame of the first base plate frame and the second base plate frame. The expansion plate type auxiliary heat sink includes a plate segment expansion plate type auxiliary heat sink and an arc segment expansion plate type auxiliary heat sink. The plate segment expansion plate type auxiliary heat sink does not contact the first low-power liquid cooling temperature control plate, the first high-power liquid cooling temperature control plate, the second low-power liquid cooling temperature control plate, and the second high-power liquid cooling temperature control plate. The arc segment expansion plate type auxiliary heat sink is located above the second radiant heat cage chamber.

[0009] The first low-power liquid-cooled temperature control plate, the first high-power liquid-cooled temperature control plate, the second low-power liquid-cooled temperature control plate, the second high-power liquid-cooled temperature control plate, the second radiant heat cage chamber, the first radiant heat cage chamber, and the expansion plate type auxiliary heat sink are each independently divided into seven areas.

[0010] The vacuum tank is equipped with two independent temperature control units. One temperature control unit consists of a three-unit temperature control unit, and the other temperature control unit consists of a two-unit temperature control unit.

[0011] The aforementioned dual-temperature control unit includes a first refrigeration compressor, which independently controls the temperature of a second low-power liquid-cooled temperature control plate and a second high-power liquid-cooled temperature control plate.

[0012] The aforementioned three-phase temperature control unit includes a second refrigeration compressor. The second refrigeration compressor independently controls the temperature of the first low-power liquid-cooled temperature control plate, the first high-power liquid-cooled temperature control plate, and the expansion plate auxiliary heat sink. The temperature control method is mechanical refrigeration with heat transfer oil.

[0013] The present invention also has the following technical features:

[0014] Both the first and second radiant heat cage chambers are equipped with herringbone-type heat sinks, and both are cooled by liquid nitrogen.

[0015] The temperatures of the first low-power liquid-cooled temperature control plate and the second low-power liquid-cooled temperature control plate are -70℃ to +120℃.

[0016] The temperature range of the first and second high-power liquid-cooled temperature control boards is -70℃ to +120℃.

[0017] The temperature range of the expansion plate type auxiliary heat sink is -70℃ to +120℃.

[0018] The temperatures of the first and second radiant heat cage chambers range from -180℃ to +120℃.

[0019] The no-load temperature change rate of the first low-power liquid-cooled temperature control board, the second low-power liquid-cooled temperature control board, the first high-power liquid-cooled temperature control board, and the second high-power liquid-cooled temperature control board is not less than 3℃ / min.

[0020] The temperature control accuracy of the first low-power liquid-cooled temperature control board, the second low-power liquid-cooled temperature control board, the first high-power liquid-cooled temperature control board, and the second high-power liquid-cooled temperature control board is better than ±0.4℃.

[0021] The first low-power liquid-cooled temperature control plate, the second low-power liquid-cooled temperature control plate, the first high-power liquid-cooled temperature control plate, and the second high-power liquid-cooled temperature control plate all adopt a reasonable flow channel design and are equipped with heat insulation baffles.

[0022] The vacuum tank is also equipped with a vacuum device, auxiliary devices, and a measurement and control device.

[0023] The vacuum tank has a rectangular shell structure.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] (I) The temperature controller in the multi-zone thermal vacuum environment test simulation system proposed in this invention is designed according to the temperature control requirements of each zone. The two sets of refrigeration compressors in the temperature controller enable each temperature control zone to have independent temperature control capabilities. The design of the temperature control base plate ensures that each temperature control zone does not interfere with each other. This solves the technical problem in the existing multi-zone structure of thermal vacuum environment test of spacecraft parts, component single-unit spaceborne traveling wave tube amplifiers that the temperature of each zone cannot be controlled independently and that the zones interfere with each other during the control process.

[0026] (II) The workstation height and space design between the various areas proposed in this invention are in line with ergonomics, and the test operation space is sufficient, simple and reliable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the temperature control zone distribution of a multi-zone thermal vacuum environment test simulation system.

[0028] Figure 2 This is a schematic diagram of the partitions of a multi-zone thermal vacuum environment test simulation system.

[0029] Figure 3 This is a schematic diagram of the installation structure of the temperature control base plate.

[0030] Figure 4 This is a schematic diagram illustrating the principle of temperature control for the second refrigeration compressor.

[0031] The labels in the diagram represent the following: 2-First base plate frame, 3-Second base plate frame, 4-First low-power liquid-cooled temperature control plate, 5-First high-power liquid-cooled temperature control plate, 6-First radiant heat cage compartment, 7-Second low-power liquid-cooled temperature control plate, 8-Second high-power liquid-cooled temperature control plate, 9-Second radiant heat cage compartment, 10-Expansion plate auxiliary heat sink, 11-Temperature control unit, 12-Vacuum device, 13-Auxiliary device, 14-Measurement and control device, 15-Power supply, 16-Spaceborne traveling wave tube amplifier, 17-Base plate mounting bracket, 18-Expansion oil tank, 19-Heat transfer oil pump, 20-Oil cooler, 21-Refrigeration valve assembly, 22-Heater.

[0032] 1001 - Plate segment expansion type auxiliary heat sink, 1002 - Arc segment expansion type auxiliary heat sink.

[0033] 1102 - Second refrigeration compressor.

[0034] The specific content of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, all devices and components in this invention are based on devices and components known in the prior art.

[0036] In this embodiment, the PID (Proportional-Integral-Derivative) is a proportional-integral-derivative controller.

[0037] In this embodiment, the "low power" of the first low-power liquid-cooled temperature control board specifically refers to a heat consumption ≤ 300W; the "high power" of the first high-power liquid-cooled temperature control board specifically refers to a heat consumption ≤ 600W.

[0038] Following the above technical solutions, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0039] Example:

[0040] This embodiment proposes a multi-zone thermal vacuum environment test simulation system, including a vacuum tank, such as... Figure 1 As shown, a base plate mounting bracket 17 is provided inside the vacuum tank. A first base plate frame 2 and a second base plate frame 3 are fixedly mounted on the base plate mounting bracket 17. The first base plate frame 2 is located below the second base plate frame 3.

[0041] like Figures 1 to 3As shown, a rectangular plate-shaped first low-power liquid-cooled temperature control plate 4 and a first high-power liquid-cooled temperature control plate 5 are sequentially installed on the first base frame 2. The long side of the first high-power liquid-cooled temperature control plate 5 is connected to the first radiant heat cage chamber 6, which is located between the first base frame 2 and the second base frame 3.

[0042] like Figures 1 to 3 As shown, a rectangular plate-shaped second low-power liquid-cooled temperature control plate 7 and a second high-power liquid-cooled temperature control plate 8 are sequentially installed on the second base frame 3. The long side of the second high-power liquid-cooled temperature control plate 8 is connected to the second radiant heat cage chamber 9.

[0043] In this embodiment, the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, the second low-power liquid-cooled temperature control plate 7, and the second high-power liquid-cooled temperature control plate 8 are divided into upper and lower layers. The inlet and outlet liquid pipelines of the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, the second low-power liquid-cooled temperature control plate 7, and the second high-power liquid-cooled temperature control plate 8 are independent of each other. The purpose is to enable the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, the second low-power liquid-cooled temperature control plate 7, and the second high-power liquid-cooled temperature control plate 8 to have the ability to carry out test control of different single-machine test temperatures in the same spatial environment.

[0044] In this embodiment, the first low-power liquid cooling temperature control plate 4, the first high-power liquid cooling temperature control plate 5, the second low-power liquid cooling temperature control plate 7, and the second high-power liquid cooling temperature control plate 8 are processed by vacuum brazing to weld the upper aluminum alloy plate, the lower aluminum alloy plate, the heat transfer oil channel, and the inlet and outlet pipes into one piece. The flatness of the plate surface meets the requirement of 0.1mm / 100mm*100mm.

[0045] like Figure 1 As shown, an expansion plate type auxiliary heat sink 10 is provided on one side frame of the first base plate frame 2 and the second base plate frame 3. The expansion plate type auxiliary heat sink 10 includes a plate segment expansion plate type auxiliary heat sink 1001 and an arc segment expansion plate type auxiliary heat sink 1002. The plate segment expansion plate type auxiliary heat sink 1001 does not contact the first low-power liquid cooling temperature control plate 4, the first high-power liquid cooling temperature control plate 5, the second low-power liquid cooling temperature control plate 7, and the second high-power liquid cooling temperature control plate 8. The arc segment expansion plate type auxiliary heat sink 1002 is partially located above the second radiant heat cage chamber 9.

[0046] In this embodiment, the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, the second low-power liquid-cooled temperature control plate 7, the second high-power liquid-cooled temperature control plate 8, the second radiant heat cage chamber 9, the first radiant heat cage chamber 6, and the expansion plate type auxiliary heat sink 10 are each independently divided into seven regions.

[0047] In this embodiment, the first low-power liquid cooling temperature control plate 4, the second low-power liquid cooling temperature control plate 7, the first high-power liquid cooling temperature control plate 5, and the second high-power liquid cooling temperature control plate 8 all adopt a reasonable flow channel design and are equipped with heat insulation baffles, in order to solve the thermal interference problem in different areas.

[0048] In this embodiment, two independent temperature control units 11 are further installed outside the vacuum tank. One temperature control unit 11 consists of a three-unit temperature control system, and the other consists of a two-unit temperature control system. The temperature control unit 11 uses an intelligent control system, which consists of a PID processor, a communication interface, and communication indicator lights. The PID processor embeds an artificial intelligence PID expert-level algorithm. This algorithm can automatically identify the heat transfer properties of the controlled product and adjust the system control parameters according to these properties, thereby achieving intelligent temperature control. Before the test, the operator only needs to perform a product self-tuning operation on the system. The system will automatically calculate the appropriate control parameters based on the heat transfer properties of the tested product. After self-tuning is complete, the operator can start the equipment and conduct the test without any adjustment to the system parameters.

[0049] In this embodiment, the dual-temperature control unit includes a first refrigeration compressor, which independently controls the temperature of the second low-power liquid-cooled temperature control plate 7 and the second high-power liquid-cooled temperature control plate 8. The temperature control method is mechanical refrigeration with heat transfer oil.

[0050] Furthermore, in this embodiment, the first refrigeration compressor, the second low-power liquid-cooled temperature control plate 7, and the second high-power liquid-cooled temperature control plate 8 adopt a modular design, which facilitates later installation and maintenance.

[0051] In this embodiment, the three-way temperature control unit includes a second refrigeration compressor 1102. The second refrigeration compressor 1102 independently controls the temperature of the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, and the expansion plate type auxiliary heat sink 10. The temperature control method is mechanical refrigeration with heat transfer oil.

[0052] Furthermore, in this embodiment, the second refrigeration compressor 1102, the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, and the expansion plate type auxiliary heat sink 10 adopt a modular design, which facilitates later installation and maintenance.

[0053] In this embodiment, the refrigeration principle of the first refrigeration compressor is the same as that of the second refrigeration compressor 1102.

[0054] In this embodiment, the refrigeration principle of the second refrigeration compressor 1102 is as follows: Figure 4As shown, the second refrigeration compressor 1102 is divided into three circuits, which respectively control the temperature of the first low-power liquid-cooled temperature control plate 4, the first high-power liquid-cooled temperature control plate 5, and the expansion plate auxiliary heat sink 10. The heat transfer oil is pumped from the expansion tank 18 to the oil cooler 20 by the heat transfer oil pump 19. The refrigeration unit in the refrigeration valve group 21 cools the heat transfer oil. The low-temperature oil is heated and temperature-controlled by the heater 22, and then enters the expansion plate auxiliary heat sink 10, the first low-power liquid-cooled temperature control plate 4, or the first high-power liquid-cooled temperature control plate 5 through the quick-release interface, allowing for independent temperature control of each circuit. The heat-absorbing heat transfer oil is pumped away by the heat transfer oil pump 19, completing a closed loop, ultimately achieving temperature control of the test sample and enabling the spaceborne traveling wave tube amplifier to conduct thermal vacuum tests in parallel.

[0055] Specifically in this embodiment, a fishbone-type heat sink is installed in both the first radiant heat cage chamber 6 and the second radiant heat cage chamber 9. Both the first radiant heat cage chamber 6 and the second radiant heat cage chamber 9 are cooled by liquid nitrogen. The high temperature is controlled by heating the electric heating wire with a DC power supply.

[0056] Specifically, in this embodiment, the temperatures of the first low-power liquid-cooled temperature control plate 4 and the second low-power liquid-cooled temperature control plate 7 are -70℃ to +120℃; the temperatures of the first high-power liquid-cooled temperature control plate 5 and the second high-power liquid-cooled temperature control plate 8 are -70℃ to +120℃; the temperature of the expansion plate type auxiliary heat sink 10 is -70℃ to +120℃; and the temperatures of the first radiant heat cage chamber 6 and the second radiant heat cage chamber 9 are -180℃ to +120℃, so that different temperature controls of 30℃ in the same direction can be achieved between the temperature control zones.

[0057] Specifically in this embodiment, the no-load temperature change rate of the first low-power liquid cooling temperature control plate 4, the second low-power liquid cooling temperature control plate 7, the first high-power liquid cooling temperature control plate 5, and the second high-power liquid cooling temperature control plate 8 is not less than 3℃ / min.

[0058] Specifically, in this embodiment, the temperature control accuracy of the first low-power liquid cooling temperature control plate 4, the second low-power liquid cooling temperature control plate 7, the first high-power liquid cooling temperature control plate 5, and the second high-power liquid cooling temperature control plate 8 is better than ±0.4℃.

[0059] Specifically, in this embodiment, a vacuum device 12, an auxiliary device 13, and a measurement and control device 14 are also provided outside the vacuum tank. The vacuum device 12 is used to maintain the vacuum level in the multi-zone thermal vacuum environment test simulation system; the auxiliary device 13 is used to supply gas, water, etc. to the multi-zone thermal vacuum environment test simulation system; and the measurement and control device 14 is used for measurement and control.

[0060] In this embodiment, the vacuum tank has a rectangular shell structure, which effectively increases the space utilization of the equipment.

[0061] Specifically, this embodiment designs a multi-zone thermal vacuum environment simulation test system. The system comprises seven independent zones: a first low-power liquid-cooled temperature control plate 4, a first high-power liquid-cooled temperature control plate 5, a second low-power liquid-cooled temperature control plate 7, a second high-power liquid-cooled temperature control plate 8, a second radiant heat cage chamber 9, a first radiant heat cage chamber 6, and an expansion-plate auxiliary heat sink 10. During the simulation, power supplies are installed on the first low-power liquid-cooled temperature control plate 4 and the second low-power liquid-cooled temperature control plate 7. Spaceborne traveling wave tube amplifiers are placed on the first high-power liquid-cooled temperature control plate 5 and the second high-power liquid-cooled temperature control plate 8. The power supply on the first low-power liquid-cooled temperature control plate 4 controls whether the spaceborne traveling wave tube amplifier on the second high-power liquid-cooled temperature control plate 8 is tested. However, the first low-power liquid-cooled temperature control plate 4 and the second high-power liquid-cooled temperature control plate 5 have different temperature requirements. Therefore, a first refrigeration compressor independently controls the temperature of the second low-power liquid-cooled temperature control plate 7 and the second high-power liquid-cooled temperature control plate 8. The first radiant heat cage chamber 6 uses liquid nitrogen refrigeration. Cooling is achieved through a single method, while high-temperature temperatures are controlled by heating electric heating wires with a DC power supply to ensure the thermal control performance and functional reliability of the spaceborne traveling wave tube amplifier. The second low-power liquid-cooled temperature control board 7 and the second high-power liquid-cooled temperature control board 8 operate on the same principle. The second refrigeration compressor 1102 independently controls the temperature of the first low-power liquid-cooled temperature control board 4, the first high-power liquid-cooled temperature control board 5, and the expansion plate auxiliary heat sink 10. The second radiant heat cage compartment 9 uses liquid nitrogen cooling, and high-temperature temperatures are controlled by heating electric heating wires with a DC power supply. This allows different areas to have independent test temperatures, thus enabling the test control to be carried out in the same space environment. This solves the technical problems of multi-zone structure and independent temperature control of each temperature zone in the thermal vacuum test of spacecraft components and single-unit spaceborne traveling wave tube amplifiers, ensuring that each area does not interfere with each other during the control process, and providing a reliable verification scheme for ground simulation of various thermal vacuum tests.

Claims

1. A multi-zone thermal vacuum environment test simulation system, comprising a vacuum tank, wherein a base plate mounting frame (17) is installed inside the vacuum tank, characterized in that, The first base plate frame (2) and the second base plate frame (3) are fixedly installed on the base plate mounting bracket (17), with the first base plate frame (2) located below the second base plate frame (3); The first base frame (2) is sequentially equipped with a rectangular plate-shaped first low-power liquid-cooled temperature control plate (4) and a first high-power liquid-cooled temperature control plate (5). The long side of the first high-power liquid-cooled temperature control plate (5) is connected to the first radiant heat cage chamber (6). The first radiant heat cage chamber (6) is located between the first base frame (2) and the second base frame (3). The second base frame (3) is equipped with a rectangular plate-shaped second low-power liquid-cooled temperature control plate (7) and a second high-power liquid-cooled temperature control plate (8) in sequence. The long side of the second high-power liquid-cooled temperature control plate (8) is connected to the second radiant heat cage chamber (9). An expansion plate type auxiliary heat sink (10) is provided on one side frame of the first base plate frame (2) and the second base plate frame (3). The expansion plate type auxiliary heat sink (10) includes a plate segment expansion plate type auxiliary heat sink (1001) and an arc segment expansion plate type auxiliary heat sink (1002). The plate segment expansion plate type auxiliary heat sink (1001) does not contact the first low power liquid cooling temperature control plate (4), the first high power liquid cooling temperature control plate (5), the second low power liquid cooling temperature control plate (7) and the second high power liquid cooling temperature control plate (8). The arc segment expansion plate type auxiliary heat sink (1002) is located above the second radiant heat cage chamber (9). The first low-power liquid-cooled temperature control plate (4), the first high-power liquid-cooled temperature control plate (5), the second low-power liquid-cooled temperature control plate (7), the second high-power liquid-cooled temperature control plate (8), the second radiant heat cage chamber (9), the first radiant heat cage chamber (6), and the expansion plate auxiliary heat sink (10) are each independently divided into seven regions. The vacuum tank is equipped with two independent temperature control units (11) on its exterior. One temperature control unit (11) consists of a three-unit temperature control unit, and the other temperature control unit (11) consists of a two-unit temperature control unit. The aforementioned dual-temperature control unit includes a first refrigeration compressor, which independently controls the temperature of the second low-power liquid-cooled temperature control plate (7) and the second high-power liquid-cooled temperature control plate (8). The aforementioned three-phase temperature control unit includes a second refrigeration compressor (1102). The second refrigeration compressor (1102) independently controls the temperature of the first low-power liquid-cooled temperature control plate (4), the first high-power liquid-cooled temperature control plate (5), and the expansion plate auxiliary heat sink (10). The temperature control method is mechanical refrigeration with heat transfer oil.

2. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, Both the first radiant heat cage chamber (6) and the second radiant heat cage chamber (9) are equipped with fishbone-type heat sinks, and both the first radiant heat cage chamber (6) and the second radiant heat cage chamber (9) are cooled by liquid nitrogen.

3. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, The temperatures of the first low-power liquid-cooled temperature control plate (4) and the second low-power liquid-cooled temperature control plate (7) are -70℃ to +120℃; The temperatures of the first high-power liquid-cooled temperature control plate (5) and the second high-power liquid-cooled temperature control plate (8) are -70℃ to +120℃; The temperature of the expansion plate type auxiliary heat sink (10) is -70℃ to +120℃; The temperatures of the first radiant heat cage chamber (6) and the second radiant heat cage chamber (9) are -180℃ to +120℃.

4. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, The no-load temperature change rate of the first low-power liquid cooling temperature control plate (4), the second low-power liquid cooling temperature control plate (7), the first high-power liquid cooling temperature control plate (5), and the second high-power liquid cooling temperature control plate (8) is not less than 3℃ / min. The temperature control accuracy of the first low-power liquid cooling temperature control plate (4), the second low-power liquid cooling temperature control plate (7), the first high-power liquid cooling temperature control plate (5), and the second high-power liquid cooling temperature control plate (8) is better than ±0.4℃.

5. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, The first low-power liquid cooling temperature control plate (4), the second low-power liquid cooling temperature control plate (7), the first high-power liquid cooling temperature control plate (5), and the second high-power liquid cooling temperature control plate (8) all adopt a reasonable flow channel design and are equipped with heat insulation baffles.

6. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, The vacuum tank is also equipped with a vacuum device (12), an auxiliary device (13), and a measurement and control device (14).

7. The multi-zone thermal vacuum environment test simulation system as described in claim 1, characterized in that, The vacuum tank has a rectangular shell structure.

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