KR830003107A

KR830003107A - Nuclear fuel assembly

Info

Publication number: KR830003107A
Application number: KR1019800002308A
Authority: KR
Inventors: 씨. 슐더버그 도날드
Original assignee: 로버트 제이. 에드위스; 더 뱁콕 앤드 윌콕스 캄패니
Priority date: 1980-06-12
Filing date: 1980-06-12
Publication date: 1983-05-31
Also published as: KR830001354B1

Abstract

내용 없음No content

Description

Nuclear fuel assembly

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시형태에 따라 구성된 핵연료 집합체의 평단면도,1 is a cross-sectional plan view of a nuclear fuel assembly constructed in accordance with an embodiment of the present invention,

제2도는 원자로의 한 수평면에서 냉각제의 직교류(直交流) 형태를 보인 제1도와 유사한 평단면도,FIG. 2 is a cross sectional view similar to FIG. 1 showing a cross-flow of coolant in a horizontal plane of the reactor,

제3도는 원자로의 다른 수평면에서의 직교류형태를 보인 단면도,3 is a cross-sectional view showing the cross-flow pattern in another horizontal plane of the reactor,

제4도는 핵연료봉의 갑체와 일체로 형성된 6개의 핀(fin)을 가진 핵연료봉의 측면도,4 is a side view of a nuclear fuel rod having six fins integrally formed with the shell of the nuclear fuel rod;

제5도는 제4도의 5-5선 단면도,5 is a cross-sectional view taken along line 5-5 of FIG.

제6도는 세계의 종방향 핀이 주면에 일정한 간격을 두고 일체로 형성된 핵연료봉의 측면도,6 is a side view of the nuclear fuel rod integrally formed with the longitudinal fins of the world at regular intervals,

제7도는 제6도의 7-7선 단면도,7 is a cross-sectional view taken along line 7-7 of FIG.

제8도는 하나의 종방향 핀이 측방향으로 간격을 두고 형성된 핵연료봉의 측면도,8 is a side view of a nuclear fuel rod formed with one longitudinal pin laterally spaced apart,

제9도는 제8도의 9-9선 단면도.9 is a sectional view taken along line 9-9 of FIG.

Claims

A plurality of nuclear fuel rods arranged in parallel at regular intervals in the form of equilateral triangular pitch and formed to form a longitudinal coolant flow passage through which coolant flows in the longitudinal direction, and one or more of the nuclear fuel rods in succession at a common axial interval; It consists of longitudinal pins, which are excreted in the same angular direction with respect to the longitudinal axis of the nuclear fuel rods, each fin extending between a portion of the main surface of the nuclear fuel rods and the adjacent coolant passages. A fuel assembly having a peripheral point in contact with the circumference of an adjacent fuel rod, said points lying on the same transverse plane such that the transverse flow component of the longitudinal coolant flow can be flowed through the fuel assembly as a whole;

Each fin includes a leading edge in one passageway and a trailing edge in an adjacent passage, the leading edges of the two fins being in all other passageways adjacent to the passages arranged for alternating flow components in which the multiple sides of a single fin are not equal. Nuclear fuel assembly according to claim 1 as disposed.

Fuel assembly according to claim 1 or 2, wherein the first fuel rod contacts the pins of the adjacent fuel rod and each pin of the first fuel rod contacts the adjacent fuel rod such that the first fuel rod supports the first fuel rod at six lateral supports. .

The array of fuel assemblies has a hexagonal cross-section, a central fuel rod with three pins, and five fuel rods disposed at positions of each fuel rod placed diagonally across the center between the central fuel rod and the corners of the hexagonal array. Fuel rods with pins, fuel rods with one pin placed adjacent to the diagonal between the central fuel powder and the edges, fuel rods with four pins arranged at all the other corners, on at least one side of the main sequence in the middle of the edges A fuel assembly according to claim 1 or 2, comprising a nuclear fuel rod having two pins placed and a nuclear fuel rod having three pins disposed at a location not occupied by the fuel rods.

※ Note: The disclosure is based on the initial application.