JPS60156492U

JPS60156492U - Nuclear fuel assembly for boiling water reactor

Info

Publication number: JPS60156492U
Application number: JP1984044691U
Authority: JP
Inventors: 博行熊谷
Original assignee: 原子燃料工業株式会社
Priority date: 1984-03-28
Filing date: 1984-03-28
Publication date: 1985-10-18

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の沸騰水形炉用核燃料集合体の縦断正面図
、第２図は同平面説明図、第３図と第４図は本考案に係
る核燃料集合体の夫々異種例を示した平面説明図である
。・　１・・・上部タイプレート、２ｏ・・・下部タイプ
レート、３・・・燃料棒束、４・・・チャンネルボック
ス、５・・・燃料棒、６・・・水管、７・・・タイ燃料
棒、７ａ、７ｂ・・・上、下端枠部、訃・・スペーサ。第１図　　　− 第４図Fig. 1 is a longitudinal sectional front view of a conventional nuclear fuel assembly for a boiling water reactor, Fig. 2 is an explanatory plan view of the same, and Figs. 3 and 4 show different examples of nuclear fuel assemblies according to the present invention. FIG.・ 1... Upper tie plate, 2o... Lower tie plate, 3... Fuel rod bundle, 4... Channel box, 5... Fuel rod, 6... Water pipe, 7... Tie Fuel rods, 7a, 7b...upper and lower end frames, butts...spacers. Figure 1 - Figure 4

Claims

[Scope of utility model registration request]

(1) Between the upper tie plate and the lower tie plate □
A plurality of fuel rods, one or more wood pipes, and a plurality of tie fuel rods whose upper and lower end frame portions are fixed to each of the above-mentioned tie plates are vertically spaced apart by a plurality of spacers to form a lattice arrangement. Then, in a nuclear fuel assembly including a fuel rod bundle and a channel box covered with the fuel rod bundle, the plurality of tie fuel rods are arranged in the outermost peripheral arrangement in the lattice arrangement. A nuclear fuel assembly for a boiling water reactor arranged in a circumferential arrangement position inside the position.

(2) Utility model registration claim 1, in which a plurality of tie fuel rods are arranged in an equal number on each of the four vertical and horizontal sides of the inner peripheral array position adjacent to the outermost peripheral array position.
A nuclear fuel assembly for a boiling water reactor as described in .

(3) The nuclear fuel assembly for a boiling water reactor according to claim 1, wherein a plurality of tie fuel rods are arranged in clusters at the innermost circumferential arrangement position, which is the axis.