Power-adjustable space radiation heat dissipation system and working method thereof

A space radiation and heat dissipation system technology, applied in the direction of indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of not being able to control the cooling power of the radiation radiator according to the demand, not being able to adjust the cooling power of the radiation radiator, and increasing the time of the heat pipe, etc. , to achieve the effect of ensuring long-term flight, avoiding freezing of working fluid, and improving adaptability

Active Publication Date: 2020-04-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

The fins of different materials are attached to the condensation section of the heat pipe by brazing or bonding, and the heat is transferred to the fins through heat conduction, and then the heat is radiated to the outer space by the fins with a high emissivity surface. The general heat dissipation method of the system, when the power of the nuclear reactor changes, the required heat dissipation power will also change accordingly. If the required heat dissipation power is lower than the design power of the radiation radiator, it may cause h

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  • Power-adjustable space radiation heat dissipation system and working method thereof
  • Power-adjustable space radiation heat dissipation system and working method thereof
  • Power-adjustable space radiation heat dissipation system and working method thereof

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention will be further explained.

[0026] A power adjustable space radiation cooling system (such as figure 1 ), including a magnetic fluid power generation system and a power conditioning system, the magnetic fluid power generation system includes a magnetic fluid power generation permanent magnet 1 and a magnetic fluid power generation permanent magnet 2, an anode plate 3 and a cathode plate 7 arranged inside the coolant pipeline inner wall 14 and Coolant liquid metal NaK with a flow direction of 15, the power adjustment system includes a pair of DC electromagnets 4, 5 placed inside the fins 13 covered with low-emissivity coatings, and the master control switch 6 is placed on the surface of the fins A pair of permanent magnets 8, 9 inside the film 12 covered with a high-emissivity coating, a pair of springs 10, 11 connecting the film and the fins; the anode plate 3 is connected to the DC electromagnet 4, 5,

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Abstract

The invention discloses a power-adjustable space radiation heat dissipation system and a working method thereof, and belongs to the field of energy comprehensive utilization. The system is characterized in that a magnetofluid power generation device arranged in a coolant pipeline is connected to direct-current electromagnets arranged in a radiation radiator fin through a wire and a switch so as tosupply power to the electromagnets; the direct-current electromagnets attract permanent magnets in a fin surface thin film to control the fin surface thin film to be opened and closed; and the effective working area of a radiation radiator is controlled by arranging and adjusting a circuit, so that the purpose of adjusting the radiating power of the heat pipe type radiation radiator is achieved.According to the adopted multi-gear heat pipe type space radiation heat dissipation system, the service life of a control device power supply is long, the radiation heat dissipation effect adjustmentcapability is good, the stability and adaptability of a space nuclear-power power supply system can be remarkably improved, and the requirement of long-term flight of a spacecraft can be well met.

Description

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Claims

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Application Information

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Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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