Fuel subassembly fixing device of reloadable liquid heavy metal reactor

A liquid heavy metal and fuel assembly technology, which is applied in the assembly of fuel elements, climate sustainability, and greenhouse gas reduction, etc., can solve the problems of high buoyancy, large safety impact, poor stability, etc. Stress, strengthen the effect of positioning
CN102610286AInactive Publication Date: 2012-07-25HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Publication Date
2012-07-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a fuel subassembly fixing device of a reloadable liquid heavy metal reactor, which consists of an upper grid tray of a reactor core, a fuel assembly and a lower grid tray of the reactor core. The main body of the fuel assembly is hexagonal, wherein the upper part of the fuel assembly extends into a honeycomb structure of the upper grid tray of the circular reactor core and is supported by a double-bump spring on the inner wall of the honeycomb structure. A slipknot is arranged at a pin of the fuel assembly to hook a circular groove of an installation hole of the upper grid tray of the reactor core to form lower constraint. The device has the functions of fixing the fuel assembly of the reactor and fixing the assembly, prevents the fuel elements from shuttling in the liquid heavy metal reactor and can reload the reactor online.
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Description

technical field

[0001] The invention belongs to the field of core structural components of a heavy metal cooling nuclear reactor, in particular to a fuel assembly fixing device of a refuelable liquid heavy metal reactor. Background technique

[0002] With the intensification of the global warming effect and the change of the world's climate, nuclear power has been paid more and more attention. The rapid development of nuclear power will inevitably bring about the problem of nuclear waste disposal. Accelerator-driven subcritical system (ADS) has the functions of realizing transmutation treatment of high-level nuclear waste and production of nuclear fuel, and has received extensive attention from the international community in recent years.

[0003] The accelerator-driven subcritical system (ADS) uses the neutrons generated by the high-energy protons produced by the accelerator to bombard the spallation target as the neutron source, and a continuous chain reaction occurs with...

Claims

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