The invention relates to the technical field of spacecraft thermal control, and provides a two-phase fluid loop system for spacecraft heat dissipation, which comprises an evaporation unit, a pump-driven two-phase fluid loop and a heat pump loop, the micro-channel cold plate comprises a micro-channel cold plate inlet, a micro-channel cold plate liquid phase outlet and a micro-channel cold plate vapor phase outlet; the pump-driven two-phase fluid loop is provided with a mechanical pump and a first radiator, and an outlet of the first radiator is connected with a liquid reservoir liquid-phase fluid inlet of the liquid reservoir; the heat pump loop is provided with a compressor and a second radiator, and the second radiator is connected with the liquid storage device through a throttling valve. The weight of the system can be effectively reduced, the launching cost is reduced, the micro-channel cold plate has a vapor-liquid separation function in a closed system, the internal flow instability is reduced, the heat exchange capacity and the critical heat flux density are improved, and the problems of mechanical pump cavitation and compressor liquid impact are solved.
本发明涉及航天器热控技术领域,提供了一种用于航天器散热的两相流体回路系统,包括蒸发单元、泵驱两相流体回路以及热泵回路,蒸发单元配置有储存传热工质的储液器、微通道冷板,微通道冷板包括微通道冷板入口、微通道冷板液相出口以及微通道冷板汽相出口;泵驱两相流体回路配置有机械泵、第一辐射器,第一辐射器的出口连接储液器所具有的储液器液相流体入口;热泵回路配置有压缩机、第二辐射器,第二辐射器通过节流阀连接储液器。本发明采用可有效降低系统的重量,降低发射成本,且微通道冷板具备在封闭系统内的汽液分离功能,既降低了其内部流动不稳定性,提高了其换热能力及临界热流密度,又解决了机械泵气蚀及压缩机液击的问题。
Two-phase fluid loop system for heat dissipation of spacecraft
用于航天器散热的两相流体回路系统
2023-07-14
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
Spacecraft single-phase fluid loop heat dissipation system
European Patent Office | 2023
|Independent thermal control heat dissipation device for single-phase fluid loop of micro spacecraft
European Patent Office | 2023
|Research on Spacecraft Single-phase Fluid Loop Control Algorithm
British Library Conference Proceedings | 2012
|Heat dissipation device for fixed solar wing of spacecraft
European Patent Office | 2022
|