High-efficient radiating system applicable to multiple point heat sources in small space

Abstract

The invention discloses a high-efficient radiating system applicable to multiple point heat sources in a small space, belonging to the technical field of aerospace thermal control. The system comprises a loop heat pipe capillary pump, a steam pipeline, a liquid pipeline, a condensation heat exchanger and flat evaporators, wherein the loop heat pipe capillary pump is heated by utilizing the heat of an active heater; a working medium in the loop heat pipe capillary pump is evaporated, and is transferred to the condensation heat exchanger for condensation through the steam pipeline; condensed liquid returns to the flat evaporators through the liquid pipeline, and is evaporated again after absorbing the heat of the point heat sources in the small space; the working medium returns to the condensation heat exchanger for condensation again; the working medium flows back to the loop heat pipe capillary pump after condensation to finish one time of cooling circulation; one or more cooling loops each consisting of the flat evaporators, the steam pipeline, the condensation heat exchanger and the liquid pipeline are connected in series between the condensation heat exchanger and the loop heat pipe capillary pump, so that heat carried by the system can be further increased. By adopting the high-efficient radiating system, high-efficient radiating in the small space can be realized.

Description

technical field [0001] The invention relates to a cooling system, in particular to a high-efficiency cooling system with multiple heat sources in a small space, and belongs to the technical field of aerospace thermal control. Background technique [0002] With the development of electronic technology, the degree of integration of electronic devices is getting higher and higher, and their heat generation is getting larger and larger. With the increase in the number of electronic devices, the installation space is getting smaller and smaller. The problem of heat dissipation of many point heat sources in electronic devices It has become a technical bottleneck restricting its integration and upgrading. [0003] Currently commonly used heat dissipation methods include air cooling and single-phase water cooling. The disadvantage of air cooling is that it occupies limited space resources. At the same time, in the field of aviation and aerospace, this cooling method cannot be used d...

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Problems solved by technology

[0003] Currently commonly used heat dissipation methods include air cooling and single-phase water cooling. The disadvantage of air cooling is that it occupies limited space resources. At the same time, in the field of aviation and aerospace, this cooling method cannot be used due to the thin air; pump-driven single-phase fluid circuit scheme Limited by the flow rate of the mechanical pump, it is impossible to solve the heat dissipation requirements of the high-power phased array antenna. At the same time, the reliability and stability of the long-term operation of the mechanical pump are poor, and maintenance is often required

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