Nuclear reactor safety casing

A reactor and containment technology, applied in the field of containment, can solve the problems that the height cannot be reduced, the volume of the reactor containment 2 cannot be reduced, etc.

Inactive Publication Date: 2004-03-03
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the required height of the upper dry shaft 3 cannot be reduc

Method used

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  • Nuclear reactor safety casing
  • Nuclear reactor safety casing
  • Nuclear reactor safety casing

Examples

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no. 1 example

[0025] Refer below figure 1 with 2 , the first embodiment of the reactor containment vessel according to the present invention will be described. The reactor containment vessel 2 accommodates the reactor pressure vessel 1 . The shape of the horizontal cross section of the reactor pressure vessel 1 and the reactor containment vessel 2 is substantially circular. The penetration point 8 of the main steam pipeline and the penetration point 20 of the feed water pipeline are both arranged on the "0 degree" side. In this embodiment, the center of the reactor pressure vessel 1 is deviated from the center of the reactor containment vessel 2 along a direction of 180 degrees. That is, the space between the inner surface of the reactor containment vessel 2 and the outer surface of the reactor pressure vessel 1 is wider on the 0-degree side than on the 180-degree side.

[0026] exist figure 1 Among them, the dotted line along the direction of 0-180 degrees is the centerline (first a...

no. 2 example

[0043] Refer below image 3 with Figure 4 , the second embodiment of the reactor containment vessel according to the present invention is described. The reactor containment vessel 2 of this embodiment has an oval horizontal cross section. The length of the horizontal cross-sectional shape in the directions of 0 degrees and 180 degrees is greater than its length in the vertical direction.

[0044] exist image 3 , the dotted line along the 0-180 degree direction is the major axis (first axis) of the reactor containment vessel 2, and the other dotted line along the 90-270 degree direction is the short axis (the second axis) of the reactor containment vessel 2 axis). The center of the reactor pressure vessel 1 deviates from the second axis of the reactor containment vessel 2 along a direction of 180 degrees. The span of the inner surface of the reactor containment 2 on the first axis may not be the maximum span of the inner surface of the reactor containment 2 if the horizo...

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PUM

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Abstract

A reactor containment vessel of a boiling water reactor configured to contain a reactor pressure vessel. The reactor pressure vessel is connected to at least one main steam pipe which penetrates the reactor containment vessel at a main-steam-line penetration point. The main-steam-line penetration point is disposed on a first side of the reactor containment vessel. Distance between outer surface of the reactor pressure vessel and inner surface of the reactor containment vessel on the first side is longer than the distance on a second side which is opposite to the first side.

Description

technical field [0001] The present invention generally relates to a containment vessel for a boiling water type nuclear reactor, and in particular, relates to a containment vessel capable of being compactly designed in terms of piping system. Background technique [0002] Figure 5 with 6 A prior art boiling water reactor containment vessel is shown. The reactor pressure vessel 1 is contained in the reactor containment vessel 2 . The horizontal cross sections of the reactor pressure vessel 1 and the reactor containment vessel 2 are concentric circles. In this example, four main steam pipes 4 and two feed water pipes 5 are connected to the reactor pressure vessel 1 . These main steam pipes 4 and feed water pipes 5 are placed in the upper dry well in the reactor containment vessel 2 and penetrate into the wall of the reactor containment vessel 2 at the main steam line penetration point 8 and the feed water line penetration point 20 respectively. [0003] The connection poi...

Claims

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Application Information

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IPC IPC(8): G21C9/00G21C13/00
CPCG21Y2004/30G21C9/00G21Y2002/301G21C13/00Y02E30/31Y02E30/30
Inventor 高桥宗孝
Owner KK TOSHIBA
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