Cooling system and method of airborne heating element based on air expansion refrigeration

Abstract

The invention discloses a cooling system and method of an airborne heating element based on air expansion refrigeration, and belongs to the field of airborne equipment cooling. The cooling system comprises a high heat-flow heating element spray cooling circulation subsystem, an air expansion refrigeration circulation subsystem and a regenerator (7), wherein the high heat-flow heating element spray cooling circulation subsystem comprises a buffer tank (8), a circulation pump (9), a filter (10), a flow regulating valve (11), a spray chamber (14) and a bypass valve (15); the air expansion refrigeration circulation subsystem comprises a primary heat exchanger (2), a secondary heat exchanger (4), a water separator (5), a turbine (6) and a fan (16). The system can achieve rapid cooling of high heat-flow heating element, and achieve the purpose of circulation cooling for multiple times through the regenerator; an intermediate regenerator structure makes full use of the characteristics of large working time intervals of the heating element and large phase change latent heat of phase change materials, greatly reduces the volume of system equipment, and meets the requirements of airborne equipment.

Description

technical field [0001] The invention relates to a cooling system and method for an airborne heating element based on air expansion 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...

AI Technical Summary

Problems solved by technology

The cooling source of the aircraft is limited. In addition to the aircraft's own heat capacity, fuel, and consumable coolant, only ram air is used as the cooling source. If the ram air is used to directly exchange heat with the spray cooling medium, the corresponding heat exchanger is bulky and heavy. Poor economy, and seriously reduce fighter performance

Considering that the airborne laser weapon has a short firing time and high heat flux density, but the firing interval is long, this invention provides a cooling system with high cooling efficiency, small size and light weight

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