Fusion reactor liquid tritium breeder cladding module for realizing remote replacement by using single layer guide tube

Abstract

The invention discloses a fusion reactor liquid tritium breeder cladding module for realizing remote replacement by using a single layer guide tube. The fusion reactor liquid tritium breeder cladding module comprises a first wall, wherein parallel first wall helium gas flow channels are distributed in the first wall; the outlets of the first wall helium gas flow channels are communicated with a second-stage helium gas header; the front face of the first wall is provided with a reserved hole; the single layer guide tube passes through a U-shaped tritium breeding zone which is not blocked by any clapboard, and is arranged in the preserved hole in a way of being vertical to the front face of the first wall; the end face of one end of the single layer guide tube is flush with the back walls of the first wall helium gas flow channels; the other end of the single layer guide tube is fixed on an internal back plate; the pipe orifice of one end, which is far away from the preserved hole, of the single layer guide tube is provided with a sealing plate; the single layer guide tube comprises a single layer guide tube which is provided with a branch tube, and a single layer guide tube which is provided with a ventilation hole; and the branch tube and the ventilation hole are communicated with the second-stage helium gas header. The fusion reactor liquid tritium breeder cladding module has the advantages of safety, reliability, simple structure, easiness in processing and manufacturing, and the like, and can be applied to a nuclear fusion device.

Description

technical field [0001] The invention relates to the technical field of a cladding module of a liquid tritium breeder of a fusion reactor, in particular to a cladding module of a liquid tritium breeder of a fusion reactor for remote replacement by using a single-layer guide tube. Background technique [0002] Fusion reactor cladding is a key energy conversion component for fusion energy applications with high environmental adaptability and low power generation costs. In fusion devices, its main functions include containing high-temperature fusion plasma, breeding tritium, energy conversion, and radiation shielding. Cladding-related technologies are core technologies that must be resolved for fusion energy to be applied commercially. At present, fusion reactor envelopes can be divided into two types from the material form of tritium breeders used: solid tritium breeder envelopes and liquid tritium breeder envelopes. The liquid tritium breeder cladding is very attractive due ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: (1) The space outside the vacuum chamber is limited, and the feasibility of opening a large enough vertical upper window is very small; (2) The horizontal window is too large, and the problem of neutron leakage is serious, which makes it difficult to meet the shielding requirements; (3) One-time Operating a row of cladding modules is bulky, heavy, and requires high external operations and space; (4) If only individual cladding modules need to be replaced, according to the above scheme, it will take too long and will affect the use of other components life

[0005] In order to complete the replacement of a single cladding module in a vacuum chamber, in 2005, based on the relatively mature technical basis of remote cutting and welding in the pipeline, it was proposed to use a remote operation tool to enter the double cooling tube from the inner tube of the concentric hollow tube. The method of replacing the cladding module inside the liquid lithium-lead cladding module has the following disadvantages: (1) The internal structure of the concentric hollow tube is complicated, the processing is difficult, and the reliability is poor; (2) The concentric hollow tube directly penetrates The first wall and the internal components of the tritium breeding zone make the assembly of the cladding module very difficult and the feasibility is low; (3) the arrangement of the helium flow channel in the penetrated first wall and the cladding internal component structure is difficult, and It is easy to cause the local temperature to be too high, which affects the safety and reliability of the cladding module

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