IT1251760B - Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo - Google Patents

Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo

Info

Publication number
IT1251760B
IT1251760B ITMI912930A ITMI912930A IT1251760B IT 1251760 B IT1251760 B IT 1251760B IT MI912930 A ITMI912930 A IT MI912930A IT MI912930 A ITMI912930 A IT MI912930A IT 1251760 B IT1251760 B IT 1251760B
Authority
IT
Italy
Prior art keywords
reactor
container
integrity
molten material
protection
Prior art date
Application number
ITMI912930A
Other languages
English (en)
Inventor
Arnaldo Turricchia
Original Assignee
Ente Naz Energia Elettrica
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 Ente Naz Energia Elettrica filed Critical Ente Naz Energia Elettrica
Priority to ITMI912930A priority Critical patent/IT1251760B/it
Publication of ITMI912930A0 publication Critical patent/ITMI912930A0/it
Priority to EP92203353A priority patent/EP0541167A1/en
Priority to US07/969,986 priority patent/US5315625A/en
Priority to JP4317945A priority patent/JPH05249273A/ja
Publication of ITMI912930A1 publication Critical patent/ITMI912930A1/it
Application granted granted Critical
Publication of IT1251760B publication Critical patent/IT1251760B/it

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

Per la protezione dell'integrità del fondo del contenitore di un reattore in centrali nucleari, nel caso di incidenti severi comportanti la fusione del nocciolo del reattore e la fuoriuscita di materiale fuso, vengono proposti un metodo ed un dispositivo che prevedono un funzionamento in tre fasi:a) l'intercettazione e la redistribuzione regolare e tridimensionale del materiale fuso fuoriuscente dal reattore sulla superficie di travi disposte a catasta, in ambiente secco, al di sotto del recipiente in pressione del reattore, nella cavità del contenitore accogliente il reattore;b) la risolidificazione ed il raffreddamento iniziale del materiale fuso depositato in strati di piccolo spessore sulle travi e, dopo tale risolidificazione,c) il raffreddamento definitivo ad opera di un fluido raffreddante, fatto affluire da un serbatoio, per allagare la cavità contenente la catasta di travi. In questo modo oltre a salvaguardare l'integrità del fondo del contenitore, vengono evitate esplosioni di vapore.
ITMI912930A 1991-11-05 1991-11-05 Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo IT1251760B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITMI912930A IT1251760B (it) 1991-11-05 1991-11-05 Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo
EP92203353A EP0541167A1 (en) 1991-11-05 1992-10-30 Method for protecting the base of the reactor container in nuclear power plants, and a device for implementing the method
US07/969,986 US5315625A (en) 1991-11-05 1992-11-02 Method for protecting the base of the reactor container in nuclear power plants, and a device for implementing the method
JP4317945A JPH05249273A (ja) 1991-11-05 1992-11-04 原子炉格納容器の基部を保護する方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI912930A IT1251760B (it) 1991-11-05 1991-11-05 Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo

Publications (3)

Publication Number Publication Date
ITMI912930A0 ITMI912930A0 (it) 1991-11-05
ITMI912930A1 ITMI912930A1 (it) 1993-05-05
IT1251760B true IT1251760B (it) 1995-05-23

Family

ID=11361029

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI912930A IT1251760B (it) 1991-11-05 1991-11-05 Metodo per la protezione dell'integrita' del fondo del contenitore di un reattore in centrali nucleari e dispositivo per l'attuazione del metodo

Country Status (4)

Country Link
US (1) US5315625A (it)
EP (1) EP0541167A1 (it)
JP (1) JPH05249273A (it)
IT (1) IT1251760B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307543A1 (de) * 1993-03-10 1994-09-15 Siemens Ag Wärmeabfuhrsystem für einen Kernreaktor, insbesondere für einen Druckwasserreaktor
US5347556A (en) * 1993-07-01 1994-09-13 General Electric Company Corium shield
FR2722606B1 (fr) * 1994-07-12 1996-08-09 Commissariat Energie Atomique Dispositif de recuperation d'un coeur fondu de reacteur nucleaire
DE59505131D1 (de) * 1994-11-18 1999-03-25 Siemens Ag Ausbreitungsraum zur aufnahme eines abschmelzenden reaktorkerns sowie verfahren zur wärmeabfuhr aus dem ausbreitungsraum
US5907588A (en) * 1995-04-05 1999-05-25 Siemens Aktiengesellschaft Device for collecting core melt from a reactor pressure vessel
DE19512287C1 (de) * 1995-04-05 1996-08-08 Siemens Ag Einrichtung zum Auffangen von Kernschmelze aus einem Reaktordruckbehälter
SE508995C2 (sv) * 1997-03-07 1998-11-23 Asea Atom Ab Kärnreaktoranläggning
KR100419194B1 (ko) * 2000-11-13 2004-02-19 한국전력공사 원자로보호용기와 압축탱크를 이용한 비상노심냉각 방법과장치
US7558360B1 (en) * 2003-12-31 2009-07-07 General Electric Company Core catcher cooling
KR100856501B1 (ko) * 2007-04-06 2008-09-04 한국원자력연구원 피동살수계통을 이용한 일체형원자로 안전설비
EP2562764A4 (en) * 2010-03-29 2016-11-09 Toshiba Kk DEVICE FOR STORING A MELTED CORE MATERIAL
JP5859902B2 (ja) * 2012-04-13 2016-02-16 日立Ｇｅニュークリア・エナジー株式会社 原子炉設備
JP2015031614A (ja) * 2013-08-05 2015-02-16 日立Ｇｅニュークリア・エナジー株式会社 原子炉格納容器
JP6363381B2 (ja) * 2014-04-11 2018-07-25 日立Ｇｅニュークリア・エナジー株式会社 床材ユニット
JP6415874B2 (ja) * 2014-06-30 2018-10-31 株式会社東芝 原子炉格納容器底部保護装置および原子炉格納設備
JP6466704B2 (ja) * 2014-12-04 2019-02-06 日立Ｇｅニュークリア・エナジー株式会社 燃料／冷却材相互作用の影響緩和システム及びそれを備えた原子力発電プラント
JP6510889B2 (ja) * 2015-05-25 2019-05-08 日立Ｇｅニュークリア・エナジー株式会社 コアキャッチャ
CN105047236B (zh) * 2015-06-09 2017-03-08 中国核动力研究设计院 反应堆严重事故状态下熔融物滞留非能动冷却系统
CN105047235B (zh) * 2015-06-09 2017-12-29 中国核动力研究设计院 核反应堆严重事故状态下熔融物堆内滞留非能动冷却系统
CN108962408A (zh) * 2018-06-21 2018-12-07 中国船舶重工集团公司第七〇九研究所 一种基于真空腔室的压力容器冷却系统
RU2698462C1 (ru) * 2018-11-01 2019-08-27 Акционерное Общество "Атомэнергопроект" Способ охлаждения расплава активной зоны ядерного реактора и система контроля охлаждения расплава активной зоны ядерного реактора
CN109659898B (zh) * 2018-12-05 2020-06-30 中国南方电网有限责任公司超高压输电公司广州局 一种高压直流干式空心电抗器非电气量保护系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113560A (en) * 1975-07-14 1978-09-12 Massachusetts Institute Of Technology Core catcher for nuclear reactor core meltdown containment
IT1228999B (it) * 1989-04-13 1991-07-12 Ente Naz Energia Elettrica Sistema di protezione dell'edificio di contenimento del reattore in centrali nucleari.
US5080857A (en) * 1989-09-19 1992-01-14 General Electric Company Passive lower drywell flooder
DE4032736C2 (de) * 1990-10-15 1995-01-05 Kernforschungsz Karlsruhe Kühleinrichtungen im Fundamentbereich eines Kernreaktors zur Kühlung einer Kernschmelze in einem hypothetischen Störfall

Also Published As

Publication number Publication date
JPH05249273A (ja) 1993-09-28
EP0541167A1 (en) 1993-05-12
US5315625A (en) 1994-05-24
ITMI912930A1 (it) 1993-05-05
ITMI912930A0 (it) 1991-11-05

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Legal Events

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0001 Granted