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Shell type reactor in normal presure and low temperature

A reactor and reactor container technology, applied in the field of nuclear reactors, can solve the problems of not being too far away, and achieve the effects of low fuel hoisting height, good inherent safety and operational reliability, and low construction and operating costs

Inactive Publication Date: 2007-02-21
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology

At present, there are many kinds of conceptual designs of low-temperature heating reactors at home and abroad, but because the economy and safety have not been widely accepted by people, especially the low-temperature heating reactors cannot be too far away from densely populated areas, and nuclear safety is more important. The reactor type with high reliability and low cost is the key to the promotion of nuclear heating reactors

Method used

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  • Shell type reactor in normal presure and low temperature

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] like figure 1 As shown, taking an atmospheric pressure low-temperature shell reactor with a thermal power of 200MW as an example, its structure includes a reactor vessel 2, inside which are provided reactor internals and fuel assemblies 10, and a control rod drive mechanism is arranged above the reactor vessel 2 1. The stack internals include lower stack internals and upper stack internals. The lower reactor internals are the main supporting structure of the core components, and are composed of a hanging basket assembly 4 and a coaming-formed plate assembly 9. The lower reactor internals are hung on the supporting steps of the reactor vessel 2 through the hanging basket middle flange 6, The top is compressed by the compression spring, the bottom is free to expand in the axial direction, and the four key grooves on the flange of the hanging basket are matched w...

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Abstract

A reactor of constant pressure and normal temperature as well as shell type consists of reactor container; in-pile component including bottom in-pile component with hanged cradle and plate set as well as top in-pile component with top support, guide cylinder of control rod and support plate of guide cylinder; fuel component and driving mechanism of control rod. It is featured as hanging reactor core at support stage in reactor container by utilizing middle flange of hanged cradle and using said flange to divide coolant in and out openings to be top and bottom layers for forming coolant channel passing through reactor core from bottom to top.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactors, and in particular relates to a nuclear reactor structure suitable for low-temperature heating and seawater desalination. Background technique [0002] The use of nuclear energy for heating is an important means to solve heating and seawater desalination. At present, there are many kinds of conceptual designs of low-temperature heating reactors at home and abroad, but because the economy and safety have not been widely accepted by people, especially the low-temperature heating reactors cannot be too far away from densely populated areas, and nuclear safety is more important. A reactor type with high reliability and low cost is the key to the promotion of nuclear heating reactors. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a new atmospheric pressure low temperature shell reactor with simple structure, low construction cost, good inherent safety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C1/00
CPCY02E30/40Y02E30/30
Inventor 段远刚李燕李红鹰吕华权
Owner NUCLEAR POWER INSTITUTE OF CHINA
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