JPS5990900U

JPS5990900U - Reactor core heat transfer flow simulation test device

Info

Publication number: JPS5990900U
Application number: JP1982188339U
Authority: JP
Inventors: 畠中　秀雄
Original assignee: 富士電機株式会社
Priority date: 1982-12-13
Filing date: 1982-12-13
Publication date: 1984-06-20
Also published as: JPH0219758Y2

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 the drawing]

第１図は従来における試験装置全体の構成断面図、第２
図は第１図の矢視■−■断面図、第３図はこの考案の実
施例の全体構成を示す構成断面図、第４図は第３図にお
ける矢視ｒＶ−ＩＶ断面図、第５図は第３図における模
擬燃料棒の下部詳細構造を示す断面図である。１・・・圧力容器、２・・・模擬ブロック積層体、２１
−　・・・電極受は座、３・・・冷却材通路孔、４・・
・模擬燃料棒、４４・・・下部電極、４７・・・電極取
付台、４８・・・連結胴、９・・・ヒータ本体。」ｆｆｌｌFigure 1 is a cross-sectional view of the entire conventional test equipment;
The figures are a sectional view taken along arrows ■--■ in FIG. The figure is a sectional view showing the detailed structure of the lower part of the simulated fuel rod in FIG. 3. 1... Pressure vessel, 2... Simulated block laminate, 21
−... Electrode holder is seat, 3... Coolant passage hole, 4...
- Simulated fuel rod, 44... Lower electrode, 47... Electrode mounting base, 48... Connection shell, 9... Heater main body. ” ffll

Claims

[Scope of utility model registration request]

(1) A simulated block stack made of graphite that simulates the reactor core block of an actual reactor, and a built-in electric heater equipped with electrodes at the upper and lower ends loaded into the coolant passage holes that vertically penetrate the simulated block stack. A test device that simulates the heat transfer flow state of a reactor core by incorporating a test assembly with a fuel rod into a pressure vessel, and heating the simulated fuel rod with electricity while flowing coolant through the upper blade into the coolant passage hole. In this, the lower electrode protruding downward from the lower end of the simulated fuel rod is a contact type electrode made of graphite, and the electrode holder formed on the side of the simulated block that faces the lower electrode at the fuel rod loading position is in contact with the seat. What is claimed is: 1. A heat transfer flow simulation test device for a nuclear reactor core, characterized in that the simulated block is grounded to an earth side, and the simulated block is grounded to an earth side.

(2) Utility Model Registration Scope of the Claims In the test device according to claim 1, the lower electrode of the simulated fuel rod has a tapered shape. Further, a heat transfer flow simulation test of a nuclear reactor core characterized in that the electrode support on the side of the simulated block that comes into contact with the electrode is configured as a tapered hole with the seat located in the center of the coolant passage hole. Device.

(3) Utility Model Registration Scope of the Claims In the test device as set forth in claim 1, the lower electrode made of graphite of the simulated fuel rod is screwed to an electrode mounting base made of a metal material having a coefficient of thermal expansion similar to that of graphite, and A nuclear reactor core heat transfer flow simulation test device characterized in that the electrode mounting base is connected and welded to the lower end of an electric heater with a built-in fuel rod through a thin-walled cylindrical metal connection body.