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Cooling system and method of airborne heating elements based on evaporative refrigeration

A heating element, evaporative refrigeration technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problem that the cooling technology cannot meet the cooling requirements

Inactive Publication Date: 2015-06-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0003] For high-power electronic components, traditional cooling technology can no longer meet the cooling requirements

Method used

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  • Cooling system and method of airborne heating elements based on evaporative refrigeration

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Embodiment Construction

[0011] like figure 1 As shown, an airborne high heat flow heating element cooling system combined with electric power according to the present invention includes a condenser 1, a ram air port 2, a regenerator 3, an expansion valve 4, a cold storage device 5, a buffer tank 6, and a circulation Pump 7, filter 8, flow regulating valve 9, cooling nozzle 10, heating element 11, spray chamber 12, bypass valve 13, compressor 14.

[0012] The specific implementation process of the spray cooling process is as follows: the low-temperature brine is pressurized by the circulating pump 7 and then sent to the cooling nozzle 10, atomized into micron-sized droplets, and forced to spray to the surface of the heating element 11 to take away a large amount of heat. In non-boiling spray cooling, the heat transfer mechanism is mainly forced convection and liquid film evaporation, while in phase change spray cooling, nucleate boiling and secondary nucleation play a more obvious role. Spray cooling...

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Abstract

The invention discloses a cooling system and method of airborne heating elements based on evaporative refrigeration, and belongs to the field of cooling airborne equipment. The cooling system comprises a spray cooling cycle subsystem of high heat-flow heating elements, an evaporative refrigeration cycle subsystem, and a cold accumulator (5) for connecting the spray cooling cycle subsystem and the evaporative refrigeration cycle subsystem, wherein the spray cooling cycle subsystem of high heat-flow heating elements comprises a buffer tank (6), a circulating pump (7), a filter (8), a flow regulating valve (9), a spray cavity (12) and a bypass valve (13); the evaporative refrigeration cycle subsystem comprises a condenser (1), a heat regenerator (3), an expansion valve (4) and a compressor (14). Through adoption of the cooling system, the rapid heat dissipation of the high heat-flow heating elements can be realized, and the purpose of repeated circular heat dissipation is achieved through the cold accumulator; besides, the cold accumulator is arranged in the middle, the working time intervals of the heating elements and the characteristic of high latent heat of phase-change materials are fully utilized, so that the volume of the equipment of the system is greatly reduced, and the requirements of airborne equipment are satisfied.

Description

technical field [0001] The invention relates to a cooling system and method for an airborne heating element based on evaporative refrigeration, belonging to the field of airborne equipment cooling. Background technique [0002] With the continuous improvement of aircraft maneuverability, stealth performance, and defense performance requirements, technologies such as high-power laser technology, high integration and miniaturization of electronic components have developed rapidly and have gradually been successfully applied to many fields such as material chemistry and astronomical detection; at the same time The successful development of high-power diode lasers has increased the application of high-power solid-state lasers in the aerospace and military fields, and has been widely used in various laser weapon development projects in the United States. The ensuing problem is that in the case of high power, a large amount of useless heat generated by the solid-state laser will r...

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Application Information

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IPC IPC(8): F25B25/00
CPCF25B25/00F25B2400/24
Inventor 蒋彦龙周年勇孙程斌胡沛李自强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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