Airborne coupling cooling system with high heat flux

Abstract

The invention relates to the technical field of cooling equipment, in particular to a high-heat-flux airborne coupling cooling system which comprises a liquid storage tank, a cooling pump, a first heat exchange part and a second heat exchange part which are sequentially connected, and the second heat exchange part communicates with the liquid storage tank; the first heat exchange part comprises a shell and a heat exchanger making contact with a cooled device, the heat exchanger is located in the shell, at least one nozzle communicating with a cooling pump is arranged in the shell, and the heat exchanger is located in front of the nozzle. The size is small, the weight is light, and high-heat-flux cooling of a heat source of airborne equipment can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling equipment, and specifically to an airborne coupled cooling system with a high heat flux density. Background Art

[0002] When a directed energy weapon is launched, it has the characteristics of short working time, large heat generation, concentrated heat, and difficulty in quickly releasing heat. With the improvement of the performance of aircraft, the requirements for defense performance are also continuously increasing. Installing a directed energy weapon on an aircraft for defense or attack is a feasible technical solution. Such weapons generate huge amounts of heat when launched, and the local surface heat flux density is on the order of hundreds or even thousands of W / cm 2 , and the cooling heat flux density is high; in addition, the power of high-power electronic countermeasure equipment is getting larger and larger, and the heat flux density required for cooling has reached hundreds of W / cm 2 , showing a further increasing trend. If effective measures cannot be taken to efficiently cool high-power heat-generating devices and reduce their surface temperature, it will not only affect their working efficiency, but also burn out the devices, affecting flight safety and mission execution.

[0003] Under ground or vehicle-mounted conditions, there is a relatively large space to install cooling equipment for directed energy weapons. Cooling can be achieved through technical measures such as increasing the heat dissipation area of the heat source surface, reducing the heat flux density, and increasing the volume of the liquid storage tank for cold storage, which can meet the heat dissipation requirements of rapid cooling to a certain extent.

[0004] In an airborne environment, the installation space is limited, and the volume and weight of the cooling system cannot be too large. How to solve the cooling of high heat flux density, quickly dissipate the huge heat generated when the airborne directed energy weapon is working, prevent the device from being burned due to excessive temperature, and ensure stable performance is the key problem that urgently needs to be solved for the cooling of airborne directed energy weapons. Commonly used is spray cooling, such as patents CN 2018102806932 and CN2018101313980; however, this conventional cooling technology can no longer meet the cooling requirements of high heat flux density in an airborne environment, and a new refrigeration device is needed to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an airborne coupled cooling system with a high heat flux density to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: An airborne coupled cooling system with a high heat flux density, comprising a liquid storage tank, a cooling pump, a first heat exchange part, and a second heat exchange part connected in sequence, and the second heat exchange part is communicated with the liquid storage tank; The first heat exchange part includes a housing and a heat exchanger in contact with the device to be cooled. The heat exchanger is located inside the housing. At least one nozzle communicating with a cooling pump is arranged inside the housing, and the heat exchanger is in front of the liquid spraying direction of the nozzle. The heat exchanger is provided with guide grooves and / or guide holes. One end of the guide grooves and / or guide holes faces the nozzle, and the guide grooves and / or guide holes pass through the heat exchanger and communicate with the outside of the housing of the first heat exchange part.

[0007] As a further solution of the present invention: the liquid storage tank is a pressurized liquid storage tank. The liquid storage tank includes a liquid outlet interface communicating with the cooling pump and a liquid return interface communicating with the second heat exchange part. An electric heater and a liquid level sensor are arranged inside the liquid storage tank. A third sensor group is connected to the liquid storage tank. The third sensor group includes pressure and temperature sensors.

[0008] As a further solution of the present invention: a piston ring is arranged inside the liquid storage tank. The outer edge of the piston ring communicates with the inner wall of the liquid storage tank through a sealing ring. One end of the piston ring is provided with an accumulator, and an exhaust valve is arranged at a position of the liquid storage tank close to the accumulator.

[0009] As a further solution of the present invention: a filter is connected between the liquid storage tank and the cooling pump. A differential pressure sensor is connected between the liquid inlet end and the liquid outlet end of the filter. The liquid outlet end of the cooling pump is connected with a relief valve through a pipeline. A reflux interface is arranged on the liquid storage tank. The relief valve communicates with the liquid storage tank through the reflux interface, and a liquid adding valve is connected to the reflux interface.

[0010] As a further solution of the present invention: a check valve and a flow sensor are sequentially connected between the cooling pump and the nozzle of the first heat exchange part. A plurality of nozzles are provided, and the plurality of nozzles are connected in parallel through a check valve in the cooling pipeline. A first sensor group is arranged at the liquid outlet end of the check valve. The first sensor group includes pressure and temperature sensors.

[0011] As a further solution of the present invention: a spray cavity is arranged inside the housing of the first heat exchange part. The heat exchanger is located inside the spray cavity. A cavity for accommodating the device to be cooled is arranged in the middle of the heat exchanger. One end of the heat exchanger far from the device to be cooled is close to the liquid spraying port of the nozzle. The heat exchanger includes a heat conductive material and a phase change material, and the heat conductive material and the phase change material are arranged at intervals in the height direction.

[0012] As a further solution of the present invention: the phase change material is a metal phase change material, and the metal phase change material includes but is not limited to NiTi-based alloys, Cu-based alloys, Fe-based alloys; the heat conductive material includes but is not limited to copper, aluminum, graphene, single-layer graphite, carbon-carbon composite materials, foam carbon, synthetic diamond.

[0013] As a further solution of the present invention: external guide grooves and internal guide grooves are respectively provided on the outer surface of the heat-conducting material and / or the phase-change material close to the nozzle and the inner surface close to the device to be cooled. A guide hole is provided inside the heat-conducting material and / or the phase-change material, and both ends of the guide hole are communicated with the external guide groove and the internal guide groove respectively.

[0014] As a further solution of the present invention: a flow guide groove arranged in the height direction is provided on the inner side of the heat-conducting material and the phase-change material close to the device to be cooled. The flow guide groove passes through the internal guide groove on the heat-conducting material and / or the phase-change material. A liquid collecting cavity is provided at the lower end of the heat exchanger, and the flow guide groove is communicated with the liquid collecting cavity.

[0015] As a further solution of the present invention: the liquid collecting cavity is connected with a liquid outlet. The liquid outlet is communicated with the second heat exchange part through a gas-liquid separator. A safety valve and a second sensor group are provided at the liquid inlet end of the gas-liquid separator. The second sensor group includes a pressure sensor and a temperature sensor. The second heat exchange part includes a gas-vapor heat exchanger and a gas-liquid heat exchanger. The outlet ends of the gas-vapor heat exchanger and the gas-liquid heat exchanger are communicated with a liquid storage tank through a proportional regulating valve. The outlet end of the gas-vapor heat exchanger is communicated with the proportional regulating valve. The proportional regulating valve is communicated with the liquid outlet end of the gas-liquid separator.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This application adopts a coupled cooling method, comprehensively applying spray cooling technology, air cooling technology, liquid cooling technology, micro-channel high-efficiency heat exchange technology, metal phase-change heat storage technology, directional high heat conduction technology, liquid storage pressurization technology, and sensing control technology, and quickly releases a large amount of heat generated instantaneously by the heating device into the cooling medium; a large amount of heat carried by the cooling medium in the system will be released into the external atmosphere by the second heat exchange part along with the high-speed circulation of the cooling medium; when the temperature of the first heat exchange part is abnormally high, the phase-change material inside it will undergo a phase change to absorb a large amount of heat and gradually release the heat as the temperature decreases, thereby suppressing the further increase of the temperature of the component to be cooled. The system adopts a hierarchical cooling technology, converting the cooling of high heat flux density into the cooling of low heat flux density, and converting the cooling of local point heat sources into the cooling of surface heat sources, overcoming the problem of difficult heat dissipation of airborne point heat sources; the system adopts a pressurized liquid storage tank with a special structure, reducing the output pressure of the pump, and reducing the pump power consumption and weight. The system adopts an integrated and modular design, with a compact structure and high cooling efficiency, achieving the purpose of small volume, light weight, low power consumption, convenient airborne installation, and high-efficiency cooling.

[0017] 2. The cooling medium of this application can directly contact the surface of the device to be cooled, achieving efficient cooling. The microchannel heat exchanger is composed of a composite of metal phase change material and high thermal conductivity material, presenting a microchannel and porous structure. Fluids can penetrate into it, facilitating fluid flow and heat conduction, and most of the heat can be dissipated in the form of phase change of the cooling medium. At the same time, when the temperature of the microchannel porous heat exchanger rises, it will induce the metal phase change material to generate a phase change, further absorbing a large amount of heat and inhibiting the further rise of the temperature on the surface of the heat-generating device.

[0018] 3. The system can quickly reduce the temperature on the surface of the heat source, and convert the cooling of local high heat flux density into cooling with a lower heat flux density, reducing the manufacturing cost.

[0019] 4. It makes full use of the cooling resources in the airborne environment, reducing energy consumption, and is especially suitable for flight platforms. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the principle of the cooling system in this embodiment; Figure 2 It is a schematic diagram of the structure of the pressurized liquid storage tank in this embodiment; Figure 3 It is an axonometric view of the first heat exchange part in this embodiment; Figure 4 It is a main sectional view of the first heat exchange part in this embodiment; Figure 5 It is a top view of the first heat exchange part in this embodiment; Figure 6 It is a top view of the heat conduction material in this embodiment; Figure 7 It is an axonometric view of the phase change material in this embodiment; Figure 8 It is a sectional top view of the phase change material in this embodiment; Figure 9 It is a main sectional view of the phase change material in this embodiment.

[0021] In the figure: 1 - liquid storage tank, 2 - liquid filling valve, 3 - overflow valve, 4 - differential pressure sensor, 5 - filter, 6 - cooling pump, 7 - check valve, 8 - flow sensor, 9 - first sensor group, 10 - device to be cooled, 11 - first heat exchange part, 12 - safety valve, 13 - second sensor group, 14 - gas-liquid separator, 15 - second heat exchange part, 16 - proportional regulating valve; 101 - exhaust valve, 102 - third sensor group, 103 - electric heater, 104 - liquid level sensor, 105 - piston ring, 106 - sealing ring, 107 - accumulator, 108 - return interface, 109 - liquid return interface, 110 - liquid outlet interface; 1101 - Heat exchanger, 1102 - Nozzle, 1103 - Liquid collection chamber, 1104 - Liquid outlet, 1105 - Spray chamber, 1106 - Heat conducting material, 1107 - Phase change material, 1108 - Diversion groove, 1109 - External diversion groove, 1110 - Guide hole, 1111 - Internal diversion groove; 1501 - Gas - vapor heat exchanger, 1502 - Gas - liquid heat exchanger. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0023] Please refer to Figure 1 , in the embodiment of the present invention, an airborne coupled cooling system with a high heat - flux density includes a liquid storage tank 1, a filter 5, a cooling pump 6, a check valve 7, a flow sensor 8, a first sensor group 9, a first heat exchange part 11, a safety valve 12, a second sensor group 13, a gas - liquid separator 14, a second heat exchange part 15, and a proportional regulating valve 16 that are connected in sequence. The proportional regulating valve 16 is communicated with the liquid storage tank 1. The liquid outlet end of the cooling pump 6 is communicated with the liquid storage tank 1 through an overflow valve 3. A differential pressure sensor 4 is connected to both ends of the filter 5.

[0024] As Figure 2 shown, the liquid storage tank 1 is a pressurized liquid storage tank. By setting a pressurized liquid storage tank, the cooling medium of the system can be pre - pressurized, reducing the output pressure and power consumption of the cooling pump and the weight of the liquid outlet pump. The liquid storage tank 1 includes a liquid outlet interface 110 communicated with the filter 5 and a liquid return interface 109 communicated with the proportional regulating valve 16. A return interface 108 is provided on the liquid storage tank 1. The overflow valve 3 is communicated with the liquid storage tank 1 through the return interface 108, and a liquid filling valve 2 is connected to the return interface 108.

[0025] An electric heater 103 is provided in the liquid storage tank 1. The electric heater can appropriately heat the refrigerant in a high - altitude low - temperature environment to avoid the refrigerant temperature being too low and control the refrigerant within a set temperature range. A liquid level sensor 104 is provided. A third sensor group 102 is connected to the liquid storage tank 1. The third sensor group 102 includes pressure and temperature sensors. A piston ring 105 is provided in the liquid storage tank 1. The outer edge of the piston ring 105 is in contact with the inner wall of the liquid storage tank 1 through a sealing ring 106. The piston ring can move up and down in the liquid storage tank 1 to pressurize the refrigerant in the liquid storage tank. One end of the piston ring 105 is provided with an accumulator 107, and an exhaust valve 101 is provided at a position of the liquid storage tank 1 close to the accumulator 107.

[0026] AsFigures 3 - 9 As shown, the first heat exchange part 11 includes a housing and a heat exchanger 1101 in contact with the device to be cooled. The heat exchanger 1101 is located inside the housing. A spray chamber 1105 is arranged inside the housing. The heat exchanger 1101 is located inside the spray chamber 1105. At least one nozzle 1102 communicating with a cooling pump 6 is arranged inside the housing. The front end of the nozzle 1102 is of a conical structure, and the spray orifice is at the annular step of the conical section. The mist-like liquid droplets ejected by the nozzle 1102 are evenly dispersed on the surface of the first heat exchanger 1101. The heat exchanger 1101 is located in front of the liquid spraying direction of the nozzle 1102. A receiving cavity for accommodating the device to be cooled is arranged inside the heat exchanger 1101. In this embodiment, the heat exchanger 1101 is of an annular structure, and the device to be cooled is inserted into the middle of the heat exchanger 1101. The heat exchanger 1101 includes a heat-conducting material 1106 and a phase-change material 1107. The heat-conducting material 1106 and the phase-change material 1107 are arranged at intervals along the height direction. External guide grooves 1109 and internal guide grooves 1111 are respectively arranged on the outer surface of the heat-conducting material 1106 and / or the phase-change material 1107 close to the nozzle 1102 and on the inner surface close to the device to be cooled. Guide holes 1110 are arranged inside the heat-conducting material 1106 and / or the phase-change material 1107. Both ends of the guide holes 1110 are communicated with the external guide grooves 1109 and the internal guide grooves 1111 respectively. Flow guide grooves 1108 arranged along the height direction are arranged on the inner side of the heat-conducting material 1106 and the phase-change material 1107 close to the device to be cooled. The flow guide grooves 1108 pass through the internal guide grooves 1111 on the heat-conducting material 1106 and / or the phase-change material 1107. A liquid collecting cavity 1103 is arranged at the lower end of the heat exchanger 1101. The flow guide grooves 1108 are communicated with the liquid collecting cavity 1103. Therefore, a heat exchange flow channel is formed inside the first heat exchange part 11, that is, the nozzle sprays out a liquid refrigerant, the refrigerant contacts the surfaces of the heat-conducting material 1106, the phase-change material 1107 and the device to be cooled 10, and successively flows into the liquid collecting cavity 1103 through the external guide grooves 1109, the guide holes 1110, the internal guide grooves 1111 and the flow guide grooves 1108. This flow direction is forced, and the refrigerant will not directly enter the liquid collecting cavity from the nozzle. Therefore, the heat exchange effect can be improved and the cooling capacity can be increased.

[0027] The surface of the heat exchanger 1101 is attached to the surface of the device to be cooled 10, and the heat of the heat-generating device can be quickly conducted to the microchannel heat exchanger. The mist-like liquid sprayed by the nozzle 1102 will cover the surfaces of the heat exchanger and the device to be cooled, and a liquid film can be formed on the surface of the heat sink to quickly undergo a phase change to absorb most of the heat. The coolant flows at a high speed and has a large volume, and nucleate boiling will not occur on the surface of the heat sink to reduce the cooling effect; at the same time, the metal phase-change material will also undergo a phase change with the abnormal rise of the temperature, and then absorb and store a part of the heat to inhibit the further rise of the temperature on the surface of the device to be cooled.

[0028] In this embodiment, the phase change material 1107 is a metal phase change material, and the metal phase change material includes, but is not limited to, NiTi-based alloys, Cu-based alloys, and Fe-based alloys; the heat conducting material 1106 includes, but is not limited to, copper, aluminum, graphene, monolayer graphite, carbon-carbon composite materials, carbon foam, and synthetic diamond.

[0029] The liquid collection chamber 1103 is connected to a liquid outlet 1104. The liquid outlet 1104 is communicated with the second heat exchange part 15 through a gas-liquid separator 14. A safety valve 12 and a second sensor group 13 are arranged at the liquid inlet end of the gas-liquid separator 14. The second sensor group 13 includes pressure and temperature sensors. The second heat exchange part 15 includes a gas-steam heat exchanger 1501 and a gas-liquid heat exchanger 1502. The outlet ends of the gas-steam heat exchanger 1501 and the gas-liquid heat exchanger 1502 are communicated with a liquid storage tank 1 through a proportional regulating valve 16. The outlet end of the gas-steam heat exchanger 1501 is communicated with the proportional regulating valve 16. The proportional regulating valve 16 is communicated with the liquid outlet end of the gas-liquid separator 14.

[0030] The fluid flows out from the first heat exchange part 11. The fluid with a higher temperature will enter the second heat exchange part 15. The second heat exchange part 15 includes a gas-steam heat exchanger 1501 and a gas-liquid heat exchanger 1502. The gas-liquid separator 14 separates the gas-liquid mixture, so that the gaseous refrigerant enters the gas-steam heat exchanger, and the liquid refrigerant enters the gas-liquid heat exchanger. The air inlet of the second heat exchange part 15 is introduced with engine bleed air through a duct. According to the actual situation of the installation platform, it can also be introduced with air from the body surface. The air outlet leads to the outside of the body; after the cooling medium is cooled by the second heat exchange part, it flows back into the liquid storage tank again; when the system works continuously, the temperature of the heat source surface can be reduced to the set temperature within the set time.

[0031] The accumulator 107 of the expansion liquid storage tank can pre-pressurize the coolant, thereby reducing the power of the cooling pump 6; when the temperature of the coolant in the liquid storage tank is too low, the electric heating starts to work, and the temperature of the coolant can be maintained at the set temperature; the liquid level sensor can sense the liquid level state of the liquid storage tank to avoid affecting the normal work due to too low liquid level.

[0032] When the cooling pump works, the pressure and flow sensors will detect the pressure and flow states of the fluid. The system controller will adjust the speed of the cooling pump according to the actual situation to ensure that the flow and pressure are within the set range; when the output pressure and flow of the pump are too high, the overflow valve will work to relieve the pressure.

[0033] The system works as follows: When the heating device is not working during the flight phase, the system is in the standby state; when the heating device starts to work, the cooling system will receive the working instruction in advance, and the cooling system starts to work several seconds in advance. The heat generated by the heating device will be released into the refrigerant through the first heat dissipation component, and the refrigerant circulates at high speed, releasing the heat to the external atmosphere through the second heat exchange component. The temperature sensor will detect the temperature of the first heat exchange component and the refrigerant in real time. When the temperature of the first heat exchange component and the refrigerant reaches the set temperature value, the cooling system stops cooling operation and switches to the standby state, waiting for the execution of the next task.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved. In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An airborne coupled cooling system with a high heat flux density, characterized in that, It includes a liquid storage tank (1), a cooling pump (6), a first heat exchange part (11), and a second heat exchange part (15) connected in sequence. The second heat exchange part (15) is communicated with the liquid storage tank (1). The first heat exchange part (11) includes a housing and a heat exchanger (1101) in contact with the device to be cooled. The heat exchanger (1101) is located inside the housing. At least one nozzle (1102) communicated with the cooling pump (6) is arranged inside the housing. The heat exchanger (1101) is located in front of the liquid spraying direction of the nozzle (1102). The heat exchanger (1101) is provided with a guide groove and / or a guide hole. One end of the guide groove and / or the guide hole faces the nozzle (1102). The guide groove and / or the guide hole penetrates through the heat exchanger (1101) and is communicated with the outside of the housing of the first heat exchange part (11).

2. The airborne coupled cooling system with a high heat flux density according to claim 1, characterized in that The liquid storage tank (1) is a pressurized liquid storage tank. The liquid storage tank (1) includes a liquid outlet interface (110) communicated with the cooling pump (6) and a liquid return interface (109) communicated with the second heat exchange part (15). An electric heater (103) and a liquid level sensor (104) are arranged inside the liquid storage tank (1). A third sensor group (102) is connected to the liquid storage tank (1). The third sensor group (102) includes pressure and temperature sensors.

3. The airborne coupled cooling system with a high heat flux density according to claim 1, wherein A piston ring (105) is arranged inside the liquid storage tank (1). The outer edge of the piston ring (105) is communicated with the inner wall of the liquid storage tank (1) through a sealing ring (106). One end of the piston ring (105) is provided with an accumulator (107). An exhaust valve (101) is arranged at the position of the liquid storage tank (1) close to the accumulator (107).

4. The airborne coupled cooling system with a high heat flux density according to claim 1, characterized in that, A filter (5) is connected between the liquid storage tank (1) and the cooling pump (6). A differential pressure sensor (4) is connected between the liquid inlet end and the liquid outlet end of the filter (5). The liquid outlet end of the cooling pump (6) is connected with an overflow valve (3) through a pipeline. A reflux interface (108) is arranged on the liquid storage tank (1). The overflow valve (3) is communicated with the liquid storage tank (1) through the reflux interface (108). A liquid adding valve (2) is connected to the reflux interface (108).

5. The airborne coupled cooling system with a high heat flux density according to claim 1, characterized in that, A check valve (7) and a flow sensor (8) are connected in sequence between the cooling pump (6) and the nozzle (1102) of the first heat exchange part (11). A plurality of the nozzles (1102) are arranged. The plurality of nozzles (1102) are connected in parallel and then communicated through a cooling pipeline check valve (7). A first sensor group (9) is arranged at the liquid outlet end of the check valve (7). The first sensor group (9) includes pressure and temperature sensors.

6. The airborne coupled cooling system with a high heat flux density according to claim 1, wherein A spray chamber (1105) is arranged inside the housing of the first heat exchange part (11). The heat exchanger (1101) is located inside the spray chamber (1105). A cavity for accommodating the device to be cooled is arranged in the middle of the heat exchanger (1101). One end of the heat exchanger (1101) far from the device to be cooled is close to the nozzle orifice of the nozzle (1102). The heat exchanger (1101) comprises a heat-conducting material (1106) and a phase-change material (1107), and the heat-conducting material (1106) and the phase-change material (1107) are arranged at intervals in the height direction.

7. An airborne coupled cooling system with a high heat flux density according to claim 6, characterized in that, The phase-change material (1107) is a metal phase-change material, and the metal phase-change material includes but is not limited to NiTi-based alloys, Cu-based alloys, and Fe-based alloys; the heat-conducting material (1106) includes but is not limited to copper, aluminum, graphene, single-layer graphite, carbon-carbon composite materials, foamed carbon, and synthetic diamond.

8. The airborne coupled cooling system with a high heat flux density according to claim 6, characterized in that, External guide grooves (1109) and internal guide grooves (1111) are respectively arranged on the outer surface of the heat-conducting material (1106) and / or the phase-change material (1107) close to the nozzle (1102) and on the inner surface close to the device to be cooled. A guide hole (1110) is arranged inside the heat-conducting material (1106) and / or the phase-change material (1107), and two ends of the guide hole (1110) are respectively communicated with the external guide groove (1109) and the internal guide groove (1111).

9. The airborne coupled cooling system with a high heat flux density according to claim 6, characterized in that Flow guide grooves (1108) arranged in the height direction are arranged on the inner sides of the heat-conducting material (1106) and the phase-change material (1107) close to the device to be cooled. The flow guide grooves (1108) penetrate through the internal guide grooves (1111) on the heat-conducting material (1106) and / or the phase-change material (1107). A liquid collection chamber (1103) is arranged at the lower end of the heat exchanger (1101), and the flow guide grooves (1108) are communicated with the liquid collection chamber (1103).

10. The airborne coupled cooling system with high heat flux density according to claim 9, characterized in that, The liquid collection chamber (1103) is connected with a liquid outlet (1104). The liquid outlet (1104) is communicated with the second heat exchange part (15) through a gas-liquid separator (14). A safety valve (12) and a second sensor group (13) are arranged at the liquid inlet end of the gas-liquid separator (14). The second sensor group (13) comprises pressure and temperature sensors. The second heat exchange part (15) comprises a gas-steam heat exchanger (1501) and a gas-liquid heat exchanger (1502). The outlet ends of the gas-steam heat exchanger (1501) and the gas-liquid heat exchanger (1502) are communicated with a liquid storage tank (1) through a proportional regulating valve (16). The outlet end of the gas-steam heat exchanger (1501) is communicated with the proportional regulating valve (16), and the proportional regulating valve (16) is communicated with the liquid outlet end of the gas-liquid separator (14).

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