JPS5484195A - Control-rod driving apparatus - Google Patents

Control-rod driving apparatus

Info

Publication number
JPS5484195A
JPS5484195A JP15180677A JP15180677A JPS5484195A JP S5484195 A JPS5484195 A JP S5484195A JP 15180677 A JP15180677 A JP 15180677A JP 15180677 A JP15180677 A JP 15180677A JP S5484195 A JPS5484195 A JP S5484195A
Authority
JP
Japan
Prior art keywords
bellows
fixed end
thicker
welded
vicinity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15180677A
Other languages
Japanese (ja)
Inventor
Shigehiro Shimoyashiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15180677A priority Critical patent/JPS5484195A/en
Publication of JPS5484195A publication Critical patent/JPS5484195A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Diaphragms And Bellows (AREA)
  • Actuator (AREA)

Abstract

PURPOSE: To prevent the generation of cracks by forming the fixed end neighbouring part of a bellows from a U-shaped bellows or making the thickness of a welded bellows thicker than other parts and making the vicinity of the fixed end thicker and obtaining a large spring constant in the vicinity of the fixed end.
CONSTITUTION: A U-shaped bellows 47 is arranged between the plate 42 of a control-rod driving apparatus and a welded bellows 49, and connection is formed between welded bellows 49 and the U-shaped bellows 47 through a welding part 48. The number of mountains of the bellows 47 is determined according to the stress value generated on the bellows 49. In other cases, the thickness of the thin plate 44 constituting the welded bellows 49 is made thicker than other parts, and the plate is formed thicker in the direction towards the fixed end, then the spring constant becomes large in the vicinity of the fixed end, and the resistant force in the direction of expansion of bellows is increased, and the generation of cracks can be prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP15180677A 1977-12-19 1977-12-19 Control-rod driving apparatus Pending JPS5484195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15180677A JPS5484195A (en) 1977-12-19 1977-12-19 Control-rod driving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15180677A JPS5484195A (en) 1977-12-19 1977-12-19 Control-rod driving apparatus

Publications (1)

Publication Number Publication Date
JPS5484195A true JPS5484195A (en) 1979-07-04

Family

ID=15526703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15180677A Pending JPS5484195A (en) 1977-12-19 1977-12-19 Control-rod driving apparatus

Country Status (1)

Country Link
JP (1) JPS5484195A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104996U (en) * 1982-01-08 1983-07-16 三菱重工業株式会社 Reactor control rod drive system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104996U (en) * 1982-01-08 1983-07-16 三菱重工業株式会社 Reactor control rod drive system

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