SE9600108D0 - Self-aligning sealing system for maintenance work at pressure vessels in nuclear reactors - Google Patents

Self-aligning sealing system for maintenance work at pressure vessels in nuclear reactors

Info

Publication number
SE9600108D0
SE9600108D0 SE9600108A SE9600108A SE9600108D0 SE 9600108 D0 SE9600108 D0 SE 9600108D0 SE 9600108 A SE9600108 A SE 9600108A SE 9600108 A SE9600108 A SE 9600108A SE 9600108 D0 SE9600108 D0 SE 9600108D0
Authority
SE
Sweden
Prior art keywords
opening
sealing
periphery
stub
self
Prior art date
Application number
SE9600108A
Other languages
Swedish (sv)
Other versions
SE9600108L (en
Inventor
Kirti Kumar
Karl Bomann Larsen
Original Assignee
Gen Electric
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
Priority claimed from US08/371,736 external-priority patent/US5586154A/en
Application filed by Gen Electric filed Critical Gen Electric
Publication of SE9600108D0 publication Critical patent/SE9600108D0/en
Publication of SE9600108L publication Critical patent/SE9600108L/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • G21C13/06—Sealing-plugs
    • G21Y2002/301—
    • G21Y2002/40—
    • G21Y2004/30—
    • G21Y2004/501—
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PROBLEM TO BE SOLVED: To easily replace parts for repair by allowing a sealing guide member to abut on the periphery of an opening of diffuser when a sealing device is lowered, leading a sealing unit to the center of a stub until a sealing means is brought into contact with the upper end of the stub, and sealing an inside opening of pump penetration structure. SOLUTION: When a sealing device 40 is lowered within a diffuser opening 38, a leg part 64 is first brought into contact with the periphery of the opening 38, and when it is further lowered, the periphery thereof abuts on the outer side of a sealing guide member 58, thereby centering the member 58 and a coupled sealing unit 42. Finally, the member 58 is fitted in the inside of the opening 38, and both are securely centered when the unit 42 is placed on the stub 22. Thus, when a driving motor, drive shaft, etc., are removed for maintenance while a cooling water is sealed by an inside opening 20, the cooling water can be prevented from flowing out from the opening 20.
SE9600108A 1995-01-12 1996-01-12 Self-aligning sealing system for maintenance work at pressure vessels in nuclear reactors SE9600108L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/371,736 US5586154A (en) 1991-11-01 1995-01-12 Self-aligning seal system for maintenance service in nuclear reactor pressure vessels

Publications (2)

Publication Number Publication Date
SE9600108D0 true SE9600108D0 (en) 1996-01-12
SE9600108L SE9600108L (en) 1996-07-13

Family

ID=23465200

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9600108A SE9600108L (en) 1995-01-12 1996-01-12 Self-aligning sealing system for maintenance work at pressure vessels in nuclear reactors

Country Status (2)

Country Link
JP (1) JPH08278392A (en)
SE (1) SE9600108L (en)

Also Published As

Publication number Publication date
SE9600108L (en) 1996-07-13
JPH08278392A (en) 1996-10-22

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