Heat Pipe Alkali Metal Conversion Integrated Reactor

A reactor and alkali metal technology, applied in the field of heat pipe type alkali metal conversion integrated micro-reactors, can solve the problems of low energy conversion efficiency, complex mechanical structure, poor radiation resistance, etc., and achieve high passive safety performance and high safety. performance, improved reliability

Active Publication Date: 2020-08-11
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermocouple conversion device has poor radiation resistance and low energy conversion efficiency - to achieve high conversion efficiency, it must have a very high hot end temperature. Therefore, Europe, the United States and my country are also vigorously promoting the Stirling cycle. Research on energy conversion methods such as closed Brayton cycle; the latter has high energy conversion efficiency, but as an energy conversion unit, compared with a thermocouple, the equipment per unit conversion power has a larger mass, a more complicated mechanical structure, and more moving parts. Many, especially closed Brayton cycles

Method used

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  • Heat Pipe Alkali Metal Conversion Integrated Reactor
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  • Heat Pipe Alkali Metal Conversion Integrated Reactor

Examples

Experimental program
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Embodiment 1

[0043] (1) The main body of the reactor is a nearly cylindrical pressure vessel, the outer diameter of the pressure vessel shroud is 280mm, the height is 690mm, the wall thickness of the pressure vessel cylinder is 10mm, the nominal diameter of the main bolt is 10mm, and the number is 24; the reactor core, energy conversion structure, alkali The metal thermoelectric conversion mechanism and circulating medium are all arranged in the pressure vessel; the reflective layer structure with a rotating drum used to control the reactivity of the core is arranged outside the pressure vessel with thermodynamic working fluid tubes.

[0044] (2) A porous uranium nitride fuel element with a diameter of 16 mm and a length of 200 mm is located at the bottom center of a fuel tube with a diameter of 20 mm; 105 fuel tubes are arranged in a cylindrical internal structure with a diameter of 260 mm and a height of 600 mm. The height is 200mm; the fuel enrichment degree is 98%.

[0045] (3) The mat...

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Abstract

The invention discloses a heat-pipe-type alkali metal conversion integrated reactor. The interior of the reactor comprises a reactor pressure container, a reactor core and an in-reactor cooling base.The reactor pressure container is composed of an almost-cylindrical barrel, a cover body covering the top of the barrel and a bottom seal head supported at the bottom of the barrel; the exterior of the reactor comprises a rotary drum control rod, a heat pipe cooler and a shielding structure. The heat-pipe-type alkali metal conversion integrated reactor is suitable for both fast reactors and thermal reactors, and also suitable for isotope heat sources and other durable heat sources; meanwhile, the adjustable range of the structural size and the output power of the reactor is large.

Description

technical field [0001] The invention belongs to the technical field of space small-scale nuclear power devices, and in particular relates to a heat pipe type alkali metal conversion integrated micro-reactor with full-environment automatic circulation capability and no moving parts. Background technique [0002] As the clean energy that is most likely to achieve large-scale and stable power generation, nuclear energy is one of the important ways to alleviate the contradiction between the environment and energy demand. The key to the application of nuclear energy lies in its safety. With the development of nuclear power technology, third-generation and fourth-generation nuclear power systems generally have passive safety features such as natural circulation of full power or partial power, and passive waste heat discharge. [0003] At the same time, with the expansion of the scope of human space exploration and the extension of exploration time, it has become an important requi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C1/32G21C15/12G21C15/14G21C15/28G21C15/18G21C7/28
CPCG21C1/32G21C7/28G21C15/12G21C15/14G21C15/18G21C15/28Y02E30/30
Inventor 夏彦周钦刘国青丁义刚杨艳斌
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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