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A liquid metal electromagnetic pump for space nuclear environment

A liquid metal, electromagnetic pump technology, applied in the direction of electromechanical devices, electrical components, etc., can solve the problem that the electromagnetic pump is difficult to meet the application requirements of the space nuclear power system, achieve the control of temperature distribution, ensure reliability, improve life and The effect of reliability

Active Publication Date: 2018-12-28
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that the existing electromagnetic pump is difficult to meet the application requirements of the space nuclear power supply system, and realize the electromagnetic pump transportation of liquid metal coolant in space and strong radiation environment, the invention provides a liquid metal electromagnetic pump for space nuclear environment

Method used

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  • A liquid metal electromagnetic pump for space nuclear environment
  • A liquid metal electromagnetic pump for space nuclear environment
  • A liquid metal electromagnetic pump for space nuclear environment

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Embodiment

[0032] The liquid metal electromagnetic pump for space nuclear environment of the present invention includes a pump channel assembly 1 , an electromagnetic excitation structure assembly 2 , a gas-tight casing assembly 3 and a power transmission assembly 4 .

[0033] The pump groove assembly 1 includes a central magnetizer 5 and a pressure-bearing outer pipe 6; the central magnetizer 5 includes a hydraulic shell 7 and a central magnetic core 8, and the hydraulic shell 7 has a torpedo shape. The magnetic conductor core 8 is made up of several bar-shaped iron cores of the same size, and each bar-shaped iron core is radially and evenly arranged on the central magnetic conductor 5; the central magnetic conductor 5 is located inside the pressure-bearing outer tube 6, and the central magnetic conductor The hydraulic casing 7 of 5 is fixedly connected with the inner surface of the pressure-bearing outer tube 6 through several fixing pieces 9, and an annular flow path of liquid metal is...

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Abstract

The invention relates to a liquid-state metal electromagnetic pump. Aiming at solving the problem that an existing electromagnetic pump cannot meet application requirements of a space nuclear power supply system, the invention provides a liquid-state metal electromagnetic pump for a space nuclear environment. The electromagnetic pump is composed of a pump groove assembly, an electromagnetic excitation structure assembly, a gas sealing shell assembly and a power transmission assembly. According to the liquid-state metal electromagnetic pump, an iron core structure has relatively good magnetism conducting efficiency and the weight and volume of the electromagnetic pump are easy to reduce; an annular flow channel of liquid-state metal can effectively improve the working efficiency of the electromagnetic pump; the electromagnetic pump is compact and firm in structure and can bear vibration and impacts from a launching phase to an orbit injection phase of a spacecraft; the gas sealing shell assembly and inert gas can provide effective protection for an electromagnetic excitation structure so that the service life is extremely prolonged and the reliability is extremely improved; and the electromagnetic pump adopts a relatively reasonable design structure so that the control of temperature distribution is facilitated and the electromagnetic pump can stably work for a long period in a vacuum environment.

Description

technical field [0001] The invention relates to a liquid metal electromagnetic pump, in particular to a liquid metal electromagnetic pump for space nuclear environment. Background technique [0002] The development of deep space exploration spacecraft urgently needs a high-power, long-life, all-weather space power system. At present, only the space nuclear power system using thermionic conversion and Stirling cycle can meet the above load requirements. [0003] The space nuclear power system generates heat from nuclear energy, and uses electromagnetic pumps to pump liquid metal coolant into the core of the nuclear reactor to export the heat. Under normal circumstances, in order to save the launch load, the space nuclear power system can only be equipped with one electromagnetic pump. However, since the electromagnetic pump is the core equipment of the space nuclear power system, which is equivalent to its heart, once an unexpected failure occurs, the entire system will be s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K44/04
CPCH02K44/04
Inventor 毕可明柴宝华赵守智杨夷杜开文魏国锋龙俞伊韩冶卫光仁冯波薛松龄邢丽娜高山
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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