FR2435784A1 - Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes - Google Patents

Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes

Info

Publication number
FR2435784A1
FR2435784A1 FR7821493A FR7821493A FR2435784A1 FR 2435784 A1 FR2435784 A1 FR 2435784A1 FR 7821493 A FR7821493 A FR 7821493A FR 7821493 A FR7821493 A FR 7821493A FR 2435784 A1 FR2435784 A1 FR 2435784A1
Authority
FR
France
Prior art keywords
water
vessel
floor
nuclear reactor
case
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.)
Granted
Application number
FR7821493A
Other languages
French (fr)
Other versions
FR2435784B1 (en
Inventor
Didier Costes
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7821493A priority Critical patent/FR2435784A1/en
Publication of FR2435784A1 publication Critical patent/FR2435784A1/en
Application granted granted Critical
Publication of FR2435784B1 publication Critical patent/FR2435784B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/016—Core catchers
    • 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)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

A water-cooled nuclear reactor, comprising an enclosure with a lower floor contg. a vessel with a base enclosing the reactor core with its fuel assemblages, concrete structures within the enclosure including a cylindrical vertical central shaft resting on the floor and supporting the vessel at its upper end and communicating compartments holding borated water, comprises in addn. a compact assemblage resting on the floor within the cylindrical shaft and below the bottom of the vessel. This assemblage is realised in a material pref. refractory blocks of e.g. basalt, or lead, which does not produce explosive reactions with the melted material coming from the fuel assemblages and the structures they pass through in case of accident. The structure is traversed by parallel tubes, pref. at 20 degrees to the horizontal, opening at their ends into the communicating compartments contg. borated water. The installation can withstand an accidental fusion of the vessel with discharge of melted uranium oxide without there following a process capable of inducing destruction of the enclosure and partic. of the floor.
FR7821493A 1978-07-20 1978-07-20 Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes Granted FR2435784A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7821493A FR2435784A1 (en) 1978-07-20 1978-07-20 Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821493A FR2435784A1 (en) 1978-07-20 1978-07-20 Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes

Publications (2)

Publication Number Publication Date
FR2435784A1 true FR2435784A1 (en) 1980-04-04
FR2435784B1 FR2435784B1 (en) 1981-10-16

Family

ID=9210938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821493A Granted FR2435784A1 (en) 1978-07-20 1978-07-20 Water-cooled nuclear reactor - incorporates structure stopping melted materials in case of accidental fusion, comprising lead blocks traversed by tubes

Country Status (1)

Country Link
FR (1) FR2435784A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0632470A1 (en) * 1993-07-01 1995-01-04 General Electric Company Corium shield
EP0766264A1 (en) * 1995-09-29 1997-04-02 Siemens Aktiengesellschaft Nuclear reactor installation comprising a cooling device for a molten core catcher
WO1998032134A1 (en) * 1997-01-16 1998-07-23 Siemens Aktiengesellschaft Nuclear reactor installation with a cooling device for core melt-through collectors
EP1102281A2 (en) * 1999-11-17 2001-05-23 General Electric Company Core catcher cooling by heat pipe
US6285727B1 (en) * 1997-03-07 2001-09-04 Abb Atom Ab Nuclear plant
WO2007099698A1 (en) * 2006-02-22 2007-09-07 Kabushiki Kaisha Toshiba Core catcher and its manufacturing method, and reactor container and its modifying method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035089A1 (en) * 1965-04-13 1971-03-25 Combustion Eng Safety system in the event of the core of a nuclear reactor being melted down
US3702802A (en) * 1971-06-16 1972-11-14 Atomic Energy Commission Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core meltdown
FR2193233A1 (en) * 1972-07-14 1974-02-15 Siemens Ag
FR2226727A1 (en) * 1973-04-19 1974-11-15 Siemens Ag
DE2363844A1 (en) * 1973-12-21 1975-06-26 Kernforschung Gmbh Ges Fuer Barrier layer on emergency core-catcher of nuclear reactor - contg. an oxide, borate, phosphate, chromate, carbonate and opt. silver
FR2266940A1 (en) * 1974-04-05 1975-10-31 Atomic Energy Authority Uk
DE2525554B1 (en) * 1975-06-07 1976-06-24 Kernforschungsanlage Juelich NUCLEAR ENERGY PLANT WITH CONTAINER FOR MELTING COREMASES
DE2459339A1 (en) * 1974-12-16 1976-07-01 Kraftwerk Union Ag Collection and cooling system for molten core material - from nuclear reactor under emergency conditions
FR2307338A1 (en) * 1975-04-09 1976-11-05 Westinghouse Electric Corp RECEPTACLE FOR DEBRIS OF NUCLEAR REACTORS
FR2321175A1 (en) * 1975-08-11 1977-03-11 Interatom BOTTOM COOLER FOR LIQUID METAL NUCLEAR REACTORS
DE2653258A1 (en) * 1976-11-24 1978-06-01 Kernforschung Gmbh Ges Fuer METHOD FOR REDUCING THE HAZARDS THAT MAY RESULT FROM AN ACCIDENT THROUGH MELTING DOWN A CORE REACTOR CORE

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035089A1 (en) * 1965-04-13 1971-03-25 Combustion Eng Safety system in the event of the core of a nuclear reactor being melted down
US3702802A (en) * 1971-06-16 1972-11-14 Atomic Energy Commission Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core meltdown
FR2193233A1 (en) * 1972-07-14 1974-02-15 Siemens Ag
FR2226727A1 (en) * 1973-04-19 1974-11-15 Siemens Ag
DE2363844A1 (en) * 1973-12-21 1975-06-26 Kernforschung Gmbh Ges Fuer Barrier layer on emergency core-catcher of nuclear reactor - contg. an oxide, borate, phosphate, chromate, carbonate and opt. silver
FR2266940A1 (en) * 1974-04-05 1975-10-31 Atomic Energy Authority Uk
DE2459339A1 (en) * 1974-12-16 1976-07-01 Kraftwerk Union Ag Collection and cooling system for molten core material - from nuclear reactor under emergency conditions
FR2307338A1 (en) * 1975-04-09 1976-11-05 Westinghouse Electric Corp RECEPTACLE FOR DEBRIS OF NUCLEAR REACTORS
DE2525554B1 (en) * 1975-06-07 1976-06-24 Kernforschungsanlage Juelich NUCLEAR ENERGY PLANT WITH CONTAINER FOR MELTING COREMASES
FR2321175A1 (en) * 1975-08-11 1977-03-11 Interatom BOTTOM COOLER FOR LIQUID METAL NUCLEAR REACTORS
DE2653258A1 (en) * 1976-11-24 1978-06-01 Kernforschung Gmbh Ges Fuer METHOD FOR REDUCING THE HAZARDS THAT MAY RESULT FROM AN ACCIDENT THROUGH MELTING DOWN A CORE REACTOR CORE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0632470A1 (en) * 1993-07-01 1995-01-04 General Electric Company Corium shield
EP0766264A1 (en) * 1995-09-29 1997-04-02 Siemens Aktiengesellschaft Nuclear reactor installation comprising a cooling device for a molten core catcher
WO1998032134A1 (en) * 1997-01-16 1998-07-23 Siemens Aktiengesellschaft Nuclear reactor installation with a cooling device for core melt-through collectors
US6285727B1 (en) * 1997-03-07 2001-09-04 Abb Atom Ab Nuclear plant
EP1102281A2 (en) * 1999-11-17 2001-05-23 General Electric Company Core catcher cooling by heat pipe
EP1102281A3 (en) * 1999-11-17 2001-06-27 General Electric Company Core catcher cooling by heat pipe
WO2007099698A1 (en) * 2006-02-22 2007-09-07 Kabushiki Kaisha Toshiba Core catcher and its manufacturing method, and reactor container and its modifying method
US8358732B2 (en) 2006-02-22 2013-01-22 Kabushiki Kaisha Toshiba Core catcher, manufacturing method thereof, reactor containment vessel and manufacturing method thereof

Also Published As

Publication number Publication date
FR2435784B1 (en) 1981-10-16

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