Movable nuclear material reactive inhibition system suitable for accident condition

A technology for accident conditions and nuclear materials, applied in the design of nuclear material reactivity suppression systems, can solve problems such as chain reaction loss of nuclear materials, and achieve the effect of improving availability and effectiveness and ensuring safety

Active Publication Date: 2013-04-03
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Regardless of the working conditions, the means to be adopted, and the ultimate cost, criticality safety must be guaranteed, otherwise the chain reaction of nuclear materials that occurs intermittently or continuously will cause immeasurable losses

Method used

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  • Movable nuclear material reactive inhibition system suitable for accident condition
  • Movable nuclear material reactive inhibition system suitable for accident condition
  • Movable nuclear material reactive inhibition system suitable for accident condition

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Experimental program
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Embodiment

[0025] Such as figure 1 As shown, a mobile nuclear material reactivity suppression system suitable for accident conditions consists of three subsystems, namely: poison storage subsystem 1 , poison injection subsystem 2 and mobile subsystem 3 .

[0026] The poison storage subsystem 1 has three mutually independent containers, namely the soluble gadolinium salt storage tank 5, the non-adherent gadolinium-containing particle storage tank 6 and the adherent gadolinium-containing particle storage tank 7, and the storage tanks store corresponding types of neutron poison. Adhesive gadolinium-containing particle storage tank 7 stores gadolinium-containing particles with mechanical adhesion or heat adhesion, and the mechanical adhesion particles can be attached to the damaged surface of the nuclear material and in the gap of the melt; Gelling occurs and adheres to the surface of the heat source.

[0027] The poison injection subsystem 2 has a pressurized gas storage tank 8 , a salt a...

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Abstract

The invention belongs to the design of nuclear material reactive inhibition systems, in particular to a movable nuclear material reactive inhibition system suitable for accident condition. The system comprises a poison storage subsystem, a poison injection subsystem and a movable subsystem, wherein the poison storage subsystem is used for storing soluble gadolinium salt, unattached gadolinium-containing particles and attached gadolinium-containing particles; the poison injection subsystem is used for realizing poison dissolution and high-pressure or normal-pressure target injection; and the movable subsystem is used for transferring the system to a proper site, so that the availability and effectiveness of the system under the accident condition are improved. According to the system, effective neutron poisons can be provided for the system under the accident condition, and the system has enough subcritical depth.

Description

technical field [0001] The invention belongs to the design of a nuclear material reactivity suppression system, in particular to a mobile nuclear material reactivity suppression system suitable for accident working conditions. Background technique [0002] The criticality safety of nuclear materials is the cornerstone of nuclear safety and the safety prerequisite that all processes, methods and systems must ensure. Regardless of the working conditions, the means to be adopted, and the final price paid, criticality safety must be guaranteed, otherwise the intermittent or continuous chain reaction of nuclear materials will cause immeasurable losses. The present invention seeks to build a mobile nuclear material reactivity suppression system suitable for accident conditions, in order to provide a large amount of effective neutron poisons for the system in case of accidents and ensure that the system has sufficient subcritical depth. The element gadolinium has the largest therm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C7/08
CPCY02E30/30
Inventor 韩旭赵侠李军李博
Owner CHINA NUCLEAR POWER ENG CO LTD
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