WO2008088930A3 - Permanent seal ring for a nuclear reactor cavity - Google Patents

Permanent seal ring for a nuclear reactor cavity Download PDF

Info

Publication number
WO2008088930A3
WO2008088930A3 PCT/US2008/050077 US2008050077W WO2008088930A3 WO 2008088930 A3 WO2008088930 A3 WO 2008088930A3 US 2008050077 W US2008050077 W US 2008050077W WO 2008088930 A3 WO2008088930 A3 WO 2008088930A3
Authority
WO
WIPO (PCT)
Prior art keywords
seal ring
reactor
cavity
reactor cavity
permanent
Prior art date
Application number
PCT/US2008/050077
Other languages
French (fr)
Other versions
WO2008088930A2 (en
Inventor
Alexander W Harkness
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to KR1020097014509A priority Critical patent/KR101428119B1/en
Priority to ES200990011A priority patent/ES2390336B1/en
Publication of WO2008088930A2 publication Critical patent/WO2008088930A2/en
Publication of WO2008088930A3 publication Critical patent/WO2008088930A3/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • F16K47/12—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths the throttling channel being of helical form
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • G21C13/028—Seals, e.g. for pressure vessels or containment vessels
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Gasket Seals (AREA)

Abstract

A permanent cavity seal ring that replaces the function of the temporary cavity seal ring typically used in narrow thermal expansion gap pressurized water reactors, to seal the gap between the reactor cavity well and the reactor during refueling. The permanent seal ring uses a C-shaped flexure that is shielded by a rigid cantilevered support arm from any accidentally dropped equipment from above in the refueling canal. The construction accommodates the thermal expansion of the reactor vessel while permitting the reactor cavity cooling air to exit the annulus between the vessel and the reactor cavity wall during plant operation, without a significant increase in pressure drop.
PCT/US2008/050077 2007-01-12 2008-01-03 Permanent seal ring for a nuclear reactor cavity WO2008088930A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020097014509A KR101428119B1 (en) 2007-01-12 2008-01-03 Permanent seal ring for a nuclear reactor cavity
ES200990011A ES2390336B1 (en) 2007-01-12 2008-01-03 PERMANENT SEALING GASKET FOR NUCLEAR REACTOR CAVITY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88470707P 2007-01-12 2007-01-12
US60/884,707 2007-01-12

Publications (2)

Publication Number Publication Date
WO2008088930A2 WO2008088930A2 (en) 2008-07-24
WO2008088930A3 true WO2008088930A3 (en) 2008-10-09

Family

ID=39636614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/050077 WO2008088930A2 (en) 2007-01-12 2008-01-03 Permanent seal ring for a nuclear reactor cavity

Country Status (3)

Country Link
KR (1) KR101428119B1 (en)
ES (1) ES2390336B1 (en)
WO (1) WO2008088930A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2753764C1 (en) * 2021-01-25 2021-08-23 Федеральное государственное бюджетное образовательное учреждение высшего образования Северо-Кавказский горно-металлургический институт государственный технологический университет) Reactor section of npp with increased seismic resistance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747993A (en) * 1985-07-25 1988-05-31 Westinghouse Electric Corp. Permanent seal ring for a nuclear reactor cavity
US5434894A (en) * 1992-12-31 1995-07-18 Combustion Engineering Inc. Reactor cavity seal joint

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753768A (en) * 1983-10-12 1988-06-28 Nuclear Energy Services, Inc. Reactor cavity pool seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747993A (en) * 1985-07-25 1988-05-31 Westinghouse Electric Corp. Permanent seal ring for a nuclear reactor cavity
US5434894A (en) * 1992-12-31 1995-07-18 Combustion Engineering Inc. Reactor cavity seal joint

Also Published As

Publication number Publication date
ES2390336A1 (en) 2012-11-12
KR20090098979A (en) 2009-09-18
KR101428119B1 (en) 2014-08-07
WO2008088930A2 (en) 2008-07-24
ES2390336B1 (en) 2013-07-02

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