Integrated sfr nuclear reactor with enhanced convective operation

A nuclear reactor, stop operation technology, applied in the direction of nuclear reactor, overall reactor, uniform reactor, etc., can solve the problems such as unfavorable conception from the economic point of view, and achieve the effect of simple hydraulic path, easy realization, and natural convection enhancement

Inactive Publication Date: 2011-12-14
COMMISSARIAT À L ÉNERGIE ATOMIQUE & AUX ÉNERGIES ALTERNATIVES FR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0041] ·Large-sized container, which is not conducive to conception from an economical point of view

Method used

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  • Integrated sfr nuclear reactor with enhanced convective operation
  • Integrated sfr nuclear reactor with enhanced convective operation
  • Integrated sfr nuclear reactor with enhanced convective operation

Examples

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Embodiment Construction

[0118] Figure 1 to Figure 2B These are respectively SFR loop reactors according to the prior art and integrated SFR reactors according to the prior art. They have already been explained above and therefore will not be described in detail below.

[0119] For clarity, like reference numerals refer to like elements that are used in the figure 2 The integrated SFR reactor illustrated in and according to the prior art and the integrated SFR reactor according to the present invention are common.

[0120] References throughout this application to the terms "horizontal", "vertical", "lower", "upper", "below" and "above" shall refer to vertically arranged reactor vessels and arrangements relative to cold or hot zones come to understand. Thus, according to the invention, the upper wall refers to the wall closest to the hot zone and the lower wall refers to the wall closest to the cold zone. Similarly, according to the present invention, an electromagnetic pump being arranged below...

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Abstract

The invention relates to a novel architecture for a nuclear reactor of the integrated type. The invention comprises: realising the hot area and cold area separation device for the primary sodium flow in the form of two walls with cuts, providing two pumping groups hydraulically in series, one for the flow of sodium from the hot area to the cold area through the intermediate exchangers and the other in the cold area; providing outlet windows of the intermediate exchangers below the lower wall; providing outlet windows of the removal exchangers of the decay heat above the cold area, wherein all of clearances between the walls with cuts and the heat removal exchangers and the height between the two walls with cuts are previously determined so as to, during normal operation, take up differential movements between the walls, exchangers and vessel and to make it possible to establish during normal operation a thermal stratification of the primary sodium in the space defined between the horizontal portions of the two walls and so as to reduce, in case of an unexpected stop of a single pumping group, the mechanical stress applied to the walls and due to the portion of the primary sodium flow passing between said clearances.

Description

technical field [0001] The present invention relates to a sodium-cooled nuclear reactor, known as SFR (Sodium Fast Reactor), which forms part of the family of reactors known as Generation IV. [0002] More specifically, the present invention relates to an integrated sodium-cooled nuclear reactor, in other words, wherein the reactor primary circuit is completely contained within the vessel, which also contains the main pump and heat exchanger. [0003] The present invention proposes an innovative structure in which the primary circuit of the reactor is contained within the vessel of the reactor, making it possible to increase the compactness of said reactor, to facilitate the design of certain parts and to improve the natural convection of sodium in said vessel. Background technique [0004] A sodium-cooled fast reactor (SFR) generally includes a container, in which a core is placed, and above the core is a core control insert. The heat removal takes place through a sodium c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C1/02G21C1/03G21C1/32G21C15/18G21C15/247
CPCG21C1/32G21C1/03G21C15/247G21C15/18Y02E30/35G21Y2002/302G21Y2004/302Y02E30/40G21Y2004/30Y02E30/34G21Y2002/301G21C1/02G21Y2002/304Y02E30/30G21C1/28
Inventor 盖伊·玛丽·戈蒂埃
Owner COMMISSARIAT À L ÉNERGIE ATOMIQUE & AUX ÉNERGIES ALTERNATIVES FR
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