Spatial high-power nuclear power system based on closed Brayton cycle

A Brayton cycle, high-power technology, applied in the power supply system of aerospace vehicles, propulsion system devices of aerospace vehicles, motor vehicles, etc., can solve the problems that have not collected data, have not found explanations or reports, etc., and achieve reduction Effect of weight and structural complexity, efficient conversion

Active Publication Date: 2019-04-26
SHANGHAI INST OF SPACE PROPULSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no description or report of similar technology of the present invention found in China, and similar data at home and abroad have not been collected yet.

Method used

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  • Spatial high-power nuclear power system based on closed Brayton cycle

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Embodiment 1

[0030] figure 1 A schematic structural diagram of a space high-power nuclear power system based on a closed Brayton cycle provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the space high-power nuclear power system based on the closed Brayton cycle provided by the present invention includes a space nuclear reactor 1, a Brayton thermoelectric conversion subsystem 2, a heat dissipation subsystem 3, a circulating working fluid storage and supply subsystem 4, Reactor auxiliary cooling subsystem 5, electric propulsion subsystem 6, and electric load subsystem 7. The space nuclear reactor 1 increases the temperature of the helium-xenon circulating working medium in the Brayton thermoelectric conversion subsystem 2 through the internal heating tube 21, and the turbine 22 in the Brayton thermoelectric conversion subsystem 2 converts the heat energy of the high-temperature and high-pressure circulating working medium into shaft power, and part of the shaft T...

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Abstract

The invention provides a spatial high-power nuclear power system based on a closed Brayton cycle. The spatial high-power nuclear power system comprises a spatial nuclear reactor, a Brayton thermoelectric conversion subsystem, a heat dissipation subsystem, a cycle working medium storage and supply subsystem, an electric propulsion subsystem and an electric loading subsystem. Helium-xenon mixed gasis taken as a cycle working medium so as to realize efficient thermoelectric conversion, and a high-specific-impulse high-thrust electric thruster directly driven by high voltage is utilized for realizing efficient propulsion. According to the spatial high-power nuclear power system, the efficient thermoelectric conversion problem of a nuclear power air vehicle and the large-range electric power adjusting problem are solved, and the problem that the high voltage of a motor end is not matched with the lower voltage of the electric thruster is solved.

Description

technical field [0001] The invention relates to the field of aircraft power systems, in particular to a space high-power nuclear power system based on a closed Brayton cycle. Background technique [0002] At present, space nuclear-powered aircraft mainly use isotope decay, and a small part of reactor nuclear power is still in the small power range within the kilowatt level. At the same time, in terms of thermoelectric conversion methods, static conversion such as thermocouples and thermions is still the main method, and the thermoelectric conversion efficiency does not exceed 10%. With the continuous development of aerospace technology, space vehicles show a trend of diversification of loads and complex tasks, and the composition of aircraft equipment is becoming more and more complex, and the demand for energy is gradually developing to hundreds of kilowatts or even megawatts. Therefore, it is necessary to develop a high-power, high-efficiency nuclear power system to meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/40B64G1/42F01K25/06F01D15/08
CPCB64G1/408B64G1/422F01D15/08F01K25/06
Inventor 程诚王浩明林庆国张志远田桂尤罡贾晴晴李小芳
Owner SHANGHAI INST OF SPACE PROPULSION
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