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Nuclear reactor primary circuit

A technology for nuclear reactors and loops, applied in the field of nuclear reactors, can solve problems such as increasing leakage or fractures at taps, and fatigue in loop pipeline areas.

Active Publication Date: 2009-01-21
FRAMATOME ANP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These disturbances can cause fatigue in this area of ​​the primary circuit piping, which may increase the risk of leaks or fractures at taps

Method used

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  • Nuclear reactor primary circuit
  • Nuclear reactor primary circuit
  • Nuclear reactor primary circuit

Examples

Experimental program
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Embodiment Construction

[0032] [32] The nuclear reactor 1 partially shown in FIG. 1 includes a container 2 for accommodating nuclear fuel assemblies, a steam generator 4 , a main pump 6 , a pressurizer 8 and a primary circuit 10 . The container 2 is provided with at least one inlet 12 and one outlet 14 . Described primary circuit 10 comprises the thermal branch 16 that makes the outlet 14 of container 2 be connected with steam generator 4, the U-shaped branch 18 that makes steam generator 4 be connected with main pump 6, and connects pump 6 and container 2. The inlet 12 is connected to the cold branch 20.

[0033] [33] The primary circuit 10 contains a primary fluid, usually water, which circulates in a closed circuit. The primary fluid is sent by the main pump 6 to the container 2, and passes through the container while becoming heated due to contact with the nuclear fuel assembly, and then transfers its heat to the secondary fluid circulating in the secondary circuit (not shown) and enters the In...

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PUM

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Abstract

The invention relates to a nuclear reactor primary circuit comprising a primary pipeline (30), which defines an internal volume (32) and in which a primary nuclear reactor coolant downwardly runs, an additional pipeline (26) which is branched to the primary pipeline (30) and defines an internal volume communicating with the internal volume (32) of the primary pipeline (30) and a cuff (36) whose first end (50) is connected to the additional pipeline (26) and the second free end (52) is positioned in the internal volume (32) of the primary pipeline (30). According to said invention, the second end (52) is delimited by a free peripherial edge (53) comprising at least one upstream and downstream sections (56, 58) which are oriented towards the upstream, wherein the upstream section (56) penetrates into the internal volume (32) deeper from the primary pipeline (30) than the downstream section (58).

Description

technical field [0001] [01] The present invention relates generally to nuclear reactors. [0002] [02] More precisely, according to a first aspect, the present invention relates to a primary circuit of a nuclear reactor, comprising: [0003] [03] A primary loop pipeline, which defines an internal space in which the primary cooling fluid of the nuclear reactor circulates, and the primary fluid circulates from upstream to downstream of the primary loop pipeline; [0004] [04] An additional pipeline connected to the primary circuit pipeline, the additional pipeline defining an internal space communicated with the internal space of the primary circuit pipeline; [0005] [05] A sleeve extending at least partially inside the additional conduit, the sleeve having a first end connected to the additional conduit, and a second end located in the inner space of the primary circuit conduit free end. Background technique [0006] [06] Document FR-A-2561030 describes such a circuit. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/22G21D1/02G21C13/032B01F3/08B01F5/06F15D1/02
CPCB01F5/045G21Y2002/303G21Y2004/302B01F3/0865G21C15/22G21D1/02Y02E30/40G21C13/032Y02E30/30Y02E30/00B01F23/451B01F25/313G21C15/02F15D1/02B01F23/40B01F25/40
Inventor G·巴鲁瓦J-G·阿利博T·米勒C·迪梅
Owner FRAMATOME ANP
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