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A Passive Shutdown Protection System for Accelerator Driven Subcritical System

A subcritical system and accelerator-driven technology, applied in emergency protection devices, reactors, nuclear power generation, etc., can solve problems that cannot be completely ruled out, misoperation of control system operators, etc.

Active Publication Date: 2018-05-18
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are all active, rely on external power or manual operation, and require a certain response time. The possibility of control system failure or misoperation by operators cannot be completely ruled out.

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  • A Passive Shutdown Protection System for Accelerator Driven Subcritical System
  • A Passive Shutdown Protection System for Accelerator Driven Subcritical System
  • A Passive Shutdown Protection System for Accelerator Driven Subcritical System

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Embodiment Construction

[0013] The invention provides a temperature-triggered passive shutdown protection system device of an accelerator-driven subcritical system. The present invention will be further explained below with reference to the drawings and examples.

[0014] Such as figure 1 The passive shutdown protection system shown is a temperature-triggered intelligent shutdown device; the specific structure is that the protective container 3 is wrapped with a soft magnetic material 1, and the protective container 3 is installed on the shielding cover of the top of the pile, composed of a spring 10 and an insulating lever 4. A lever, the permanent magnet 2 is connected to the insulated lever 4, the power negative 6 of the accelerator is installed on the upper end of the insulated lever 4, the power positive 7 of the accelerator is installed on the opposite side of the same level as the negative power of the power, and the horizontal distance is the lower soft magnet 1 When the permanent magnet 2 is a...

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Abstract

The invention discloses a passive shutdown protection system of an accelerator-driven undercritical system and belongs to the field of accelerator-driven undercritical system passive shutdown equipment. The passive shutdown protection system is a temperature-triggered intelligent shutdown device. When a coolant temperature of a soft-magnetic material at a core outlet is higher than a Curie-point temperature of the soft-magnetic material, the soft-magnetic material loses magnetism because of its physical properties and is not adsorbed by a permanent magnet so that a positive-negative of the accelerator switch is switched off and passive shutdown is realized. Through the passive shutdown protection system, after an accident, safe shutdown is realized without excessive dependence on timely and accurate determination by operators and supplement of external energy.

Description

Technical field [0001] The invention belongs to the field of equipment of an accelerator-driven subcritical system passive shutdown system. Specifically, it relates to a temperature-triggered passive shutdown protection system device of the backup shutdown system of the accelerator-driven subcritical system to realize the inherent safety of the accelerator-driven subcritical system. The present invention relates to nuclear reactor design technology, nuclear safety technology and Related technology. Background technique [0002] The development of nuclear energy will have to face difficulties in the treatment and disposal of nuclear waste. The sub-actinide nuclides (MA) and long-lived fission products (LLFP) in nuclear waste are highly radioactive. Some nuclides have half-lives as long as millions of years. If they are not safely disposed of, they will always cause harm to human descendants. Potential radiological threat. Accelerator Driven Subcritical System (ADS) is "a newly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C9/02
CPCG21C9/02Y02E30/30
Inventor 金鸣吴国伟
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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