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Compound accident residual heat removal system for accelerator-driven sub-critical reactor

A waste heat removal system, accelerator-driven technology, applied in reactors, greenhouse gas reduction, nuclear engineering and other directions, can solve problems such as poor passive performance and poor effectiveness, and achieve the effect of meeting safety design requirements and improving passive safety characteristics.

Inactive Publication Date: 2012-08-01
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technology of the present invention solves the problem: Aiming at the problem of poor passivity and poor effectiveness of the accident waste heat discharge system of the existing accelerator-driven subcritical reactor, it provides a passive system that can effectively discharge the waste heat of the core by relying on natural circulation , safety features and independence, and can provide a composite accelerator-driven subcritical reactor accident waste heat removal system that can provide great reliability

Method used

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  • Compound accident residual heat removal system for accelerator-driven sub-critical reactor
  • Compound accident residual heat removal system for accelerator-driven sub-critical reactor
  • Compound accident residual heat removal system for accelerator-driven sub-critical reactor

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Embodiment Construction

[0017] Such as figure 1 As shown, the present invention consists of two sets of passive and independent cooling systems, each of which relies on natural circulation for cooling without the need for an AC power supply, including a reactor core direct cooling system and a reactor safety vessel auxiliary cooling system.

[0018] The reactor core direct cooling system is composed of two mutually independent loops with the same structure. The two independent loops with the same structure belong to the same system, but they are independent of each other during operation and have redundancy Sexual characteristics, in order to improve the reliability and effectiveness of the system. Each loop includes an independent heat exchanger 2 installed in the lead-bismuth pool, an air heat exchanger 3 outside the containment, a first exhaust chimney 4 and measuring and controlling instruments 12 . Among them, the measurement and control instrument 12 belongs to a part of the reactor measuremen...

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Abstract

The invention relates to a compound accident residual heat removal system for an accelerator-driven sub-critical reactor. The system consists of a reactor core direct cooling system and a reactor safe container auxiliary cooling system. The reactor core direct cooling system is connected with a main loop and consists of an independent heat exchanger, an air heat exchanger, a smoke discharge chimney and a connecting pipe. In addition, the reactor safe container auxiliary cooling system realizes natural cooling by virtue of ambient air outside the safe container, cold air reaches the bottom of the container through a descending pipe, hot air flows out of a safety shell through an ascending pipe, and the process has the characteristic of being non-active. The compound residual heat removal system has high efficiency, non-activity, independence and high reliability, and meets the safety design requirements of an accelerator-driven sub-critical reactor.

Description

technical field [0001] The invention relates to an accident residual heat discharge system of an accelerator-driven subcritical reactor, and belongs to the technical field of safety facilities for an accelerator-driven subcritical reactor. Background technique [0002] Accelerator-driven subcritical reactor is an ideal device for transmutation of radioactive nuclear waste, effective use of nuclear resources and production of nuclear energy. It is mainly composed of proton accelerator, spallation target and subcritical reactor. It is a lead-bismuth cooled pool fast reactor. The basic principle is: the proton beam generated by the accelerator bombards the heavy metal target (lead-bismuth alloy) in the subcritical reactor, causing a spallation reaction, and then generates neutrons through the internal and external cascades, 1 A proton with an energy of 1GeV produces about 30 neutrons on the thick target, and the spallation neutron target provides external neutrons for the subc...

Claims

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Application Information

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IPC IPC(8): G21C15/18
CPCY02E30/37Y02E30/30
Inventor 盛美玲金鸣柏云清汪卫华
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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