FI81698B - Foerfarande foer foerhindrande av oavsiktligt kritiskt tillstaond i en kaernbraensledriven elkraftgenererande enhet. - Google Patents
Foerfarande foer foerhindrande av oavsiktligt kritiskt tillstaond i en kaernbraensledriven elkraftgenererande enhet. Download PDFInfo
- Publication number
- FI81698B FI81698B FI832876A FI832876A FI81698B FI 81698 B FI81698 B FI 81698B FI 832876 A FI832876 A FI 832876A FI 832876 A FI832876 A FI 832876A FI 81698 B FI81698 B FI 81698B
- Authority
- FI
- Finland
- Prior art keywords
- reactor
- average
- signal
- boron
- flux count
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
-
- 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
-
- 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
-
- 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)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Radiation (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Claims (3)
1. Förfarande för att detektera ett av förbiseende uppträ-dande närmande tili kriticitet i en elektrisk effekt genere-rande anläggning med en kärnreaktor, innefattande följande stegs alstring av en momentan neutronilödesräknesignal som är representativ för det momentana neutronilödet i reaktorn när reaktorn ligger vid en reaktivitetsnivä av omkring 10—* procent eller nedre reaktoreffekt, kännetecknat av att därunder alstras ur den momentana neutronilödesräkningen en första och en andra genomsnittlig flödesräknesignal representativ för den genomsnittliga neutronflödesräknesig-nalen under minst första och andra stegringstidsperioder, vilka är skilda ät i tiden av ett förutbestämt tidintervall, inkluderande repetitiv sampling av den momentana neutronflö-desräknesignalen under nämnda stegringstidsperioder och alstring av nämnda första och andra genomsnittsflödesräk-nesignaler som genomsnittet av de sampel som tagits under respektive intervall; och jämföras nämnda första och andra genomsnittsflödesräknesignaler och alstras en alarm när den andra av genomsnittsflödesräknesignaler överstiger den första genomsnittsflödesräknesignalen med minst en förvald multiplikationsfaktor.
2. Förfarande enligt patentkrav 1, kännetecknat av att det förutbestämda tidintervallet är en multipel av nämnda stegringsperiod och innefattande stegen att repetitivt och kontinuerligt alstra nämnda genomsnittsflödesräknesignaler, lagring av den sista av dessa signaler, vars antal är nämnda multipel och vai som nämnda andra genomsnittsflödesräknesignal av den sista sä alstrade signalen.
3. Förfarande enligt patentkrav 2, kännetecknat av att nämnda sista genomsnittsflödesräknesignal jämförs med var och en av de nämnda lagrade genomsnittsflödesräknesignalerna och alarmsignalen alstras när den sista genomsnittsflödesräknesignalen överskrider nägon av de nämnda lagrade ge- 25 81 698 nomsnittsflödesräknesignalerna med minst nämnda multiplika-tionsfaktor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/407,231 US4582672A (en) | 1982-08-11 | 1982-08-11 | Method and apparatus for preventing inadvertent criticality in a nuclear fueled electric powering generating unit |
US40723182 | 1982-08-11 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI832876A0 FI832876A0 (fi) | 1983-08-10 |
FI832876A FI832876A (fi) | 1984-02-12 |
FI81698B true FI81698B (fi) | 1990-07-31 |
FI81698C FI81698C (sv) | 1990-11-12 |
Family
ID=23611187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI832876A FI81698C (sv) | 1982-08-11 | 1983-08-10 | Förfarande för förhindrande av oavsiktligt kritiskt tillstånd i en kär nbränsledriven elkraftgenererande enhet |
Country Status (10)
Country | Link |
---|---|
US (1) | US4582672A (sv) |
EP (1) | EP0101242B1 (sv) |
JP (1) | JPS5948694A (sv) |
KR (1) | KR910004191B1 (sv) |
DE (1) | DE3372555D1 (sv) |
ES (1) | ES524844A0 (sv) |
FI (1) | FI81698C (sv) |
FR (1) | FR2531802B1 (sv) |
GB (1) | GB2125200B (sv) |
ZA (1) | ZA835144B (sv) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115300A (ja) * | 1984-06-29 | 1986-01-23 | ホーチキ株式会社 | 火災警報装置 |
US4678622A (en) * | 1985-08-20 | 1987-07-07 | General Electric Company | Transient monitor for nuclear reactor |
US4671919A (en) * | 1985-08-23 | 1987-06-09 | Westinghouse Electric Corp. | Reactor power level monitoring system using an alpha-beta tracker |
US4804514A (en) * | 1986-12-09 | 1989-02-14 | Westinghouse Electric Corp. | Method and apparatus for neutron dosimetry |
US4783307A (en) * | 1987-03-05 | 1988-11-08 | Commonwealth Edison Company | Reactor control system verification |
US4920548A (en) * | 1988-09-28 | 1990-04-24 | Westinghouse Electric Corp. | Source range neutron flux count rate system incorporating method and apparatus for eliminating noise from pulse signal |
US5164895A (en) * | 1990-03-16 | 1992-11-17 | Westinghouse Electric Corp. | Neutron flux mapping system for nuclear reactors |
US5076998A (en) * | 1990-06-21 | 1991-12-31 | Westinghouse Electric Corp. | Monitoring of low frequency pulse rate |
US5555279A (en) * | 1994-11-16 | 1996-09-10 | Nir; Israel | System for monitoring and controlling nuclear reactors |
US6061412A (en) * | 1995-10-05 | 2000-05-09 | Westinghouse Electric Company Llc | Nuclear reaction protection system |
US6577697B2 (en) * | 1997-07-09 | 2003-06-10 | Southwest Research Institute | Field analysis of geological samples using delayed neutron activation analysis |
US6181759B1 (en) | 1999-07-23 | 2001-01-30 | Westinghouse Electric Company Llc | Method and apparatus for determining nearness to criticality of a nuclear fueled electric power generating unit |
EA005192B1 (ru) * | 2000-11-24 | 2004-12-30 | Синельникова-Мурылева, Елена Ирбековна | Способ защиты ядерных реакторов и устройство для его осуществления |
US6801593B2 (en) * | 2002-11-21 | 2004-10-05 | Westinghouse Electric Company Llc | Subcritical reactivity measurement method |
CA2456284A1 (en) * | 2004-01-26 | 2005-07-26 | Ontario Power Generation Inc. | Method and system for testing in-core flux detectors |
JP4863068B2 (ja) * | 2006-09-29 | 2012-01-25 | 大日本印刷株式会社 | カートン |
KR101139619B1 (ko) * | 2010-10-13 | 2012-04-27 | 한국수력원자력 주식회사 | 가압경수로 냉각재 내 붕소농도 자동조절 방법 및 장치 |
US9875818B2 (en) | 2012-10-11 | 2018-01-23 | Bwx Technologies, Inc. | Fail-safe reactivity compensation method for a nuclear reactor |
US9423516B2 (en) * | 2013-03-15 | 2016-08-23 | Westinghouse Electric Company Llc | Systems and methods for spent fuel pool subcriticality measurement and monitoring |
US9761335B2 (en) * | 2013-10-21 | 2017-09-12 | Westinghouse Electric Company Llc | Method for monitoring boron dilution during a reactor outage |
ES2723433T3 (es) | 2013-11-26 | 2019-08-27 | Ingenieria Y Marketing S A | Dispositivo portátil para la boración de un flujo continuo de agua |
US20170263342A1 (en) * | 2016-03-10 | 2017-09-14 | Westinghouse Electric Company Llc | Real-time reactor coolant system boron concentration monitor utilizing an ultrasonic spectroscpopy system |
CN109785980B (zh) * | 2019-01-24 | 2021-01-26 | 中广核工程有限公司 | 核电站硼稀释事故处理方法以及系统 |
EP4415001A1 (en) | 2021-10-05 | 2024-08-14 | Ingeniería Y Marketing, S.A. | Portable device for the boration of continuously flowing water |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB827436A (en) * | 1958-01-07 | 1960-02-03 | Atomic Energy Authority Uk | Improvements in or relating to instrumentation for nuclear reactors |
NL280001A (sv) * | 1961-06-22 | 1900-01-01 | ||
US3188470A (en) * | 1963-03-05 | 1965-06-08 | Charles W Ricker | Method of determining the negative reactivity of neutronic multiplying systems |
GB1047152A (en) * | 1964-01-08 | 1966-11-02 | English Electric Co Ltd | Control systems |
US3366544A (en) * | 1965-07-13 | 1968-01-30 | Atomic Energy Commission Usa | Method of and apparatus for controlling start-up of a nuclear reactor |
US3424653A (en) * | 1967-06-08 | 1969-01-28 | Atomic Energy Commission | Method for start-up of a nuclear reactor utilizing a digital computer |
US4225390A (en) * | 1970-01-14 | 1980-09-30 | Westinghouse Electric Corp. | Boron control system for a nuclear power plant |
GB1298168A (en) * | 1970-05-19 | 1972-11-29 | Westinghouse Electric Corp | Control system for a nuclear power plant |
US3998693A (en) * | 1970-11-23 | 1976-12-21 | Combustion Engineering, Inc. | Thermal margin control |
DE2137504A1 (de) * | 1971-07-27 | 1973-02-01 | Kernforschung Gmbh Ges Fuer | Verfahren und vorrichtung zur statischen messung der unterkritikalitaet eines kernreaktors |
BE791975A (fr) * | 1971-11-30 | 1973-05-28 | Westinghouse Electric Corp | Systemes de concentration d'une solution moderatrice utilisee dans une centrale nucleaire a eau sous pression |
FR2294473A1 (fr) * | 1974-12-11 | 1976-07-09 | Commissariat Energie Atomique | Procede et dispositif electronique de commande a securite positive |
US4060716A (en) * | 1975-05-19 | 1977-11-29 | Rockwell International Corporation | Method and apparatus for automatic abnormal events monitor in operating plants |
US4104117A (en) * | 1977-02-07 | 1978-08-01 | Westinghouse Electric Corp. | Nuclear reactor power generation |
US4122720A (en) * | 1977-04-07 | 1978-10-31 | Alnor Instrument Company | Diesel engine exhaust temperature monitor |
CA1094698A (en) * | 1977-04-21 | 1981-01-27 | Herbert N. Klingbeil | System for detection of process trip |
ZA782493B (en) * | 1978-05-01 | 1979-12-27 | Anglo Amer Corp South Africa | Rate of change detection |
US4297581A (en) * | 1979-01-15 | 1981-10-27 | The Babcock & Wilcox Company | Method for the fast and accurate identification of core power in nuclear reactors |
US4305786A (en) * | 1979-02-12 | 1981-12-15 | Wachter Associates, Inc. | Shutdown reactivity meter system for nuclear fuel storage cells |
GB2050022A (en) * | 1979-05-02 | 1980-12-31 | Moser M | Intruder Alarm |
GB2074721B (en) * | 1980-04-23 | 1983-09-07 | Furnace Construction Co Ltd | Smoke sensor apparatus |
US4427620A (en) * | 1981-02-04 | 1984-01-24 | Westinghouse Electric Corp. | Nuclear reactor power supply |
-
1982
- 1982-08-11 US US06/407,231 patent/US4582672A/en not_active Expired - Fee Related
-
1983
- 1983-07-14 ZA ZA835144A patent/ZA835144B/xx unknown
- 1983-08-02 GB GB08320802A patent/GB2125200B/en not_active Expired
- 1983-08-02 EP EP83304454A patent/EP0101242B1/en not_active Expired
- 1983-08-02 DE DE8383304454T patent/DE3372555D1/de not_active Expired
- 1983-08-10 FI FI832876A patent/FI81698C/sv not_active IP Right Cessation
- 1983-08-10 JP JP58145139A patent/JPS5948694A/ja active Pending
- 1983-08-10 ES ES524844A patent/ES524844A0/es active Granted
- 1983-08-10 FR FR8313184A patent/FR2531802B1/fr not_active Expired
- 1983-08-11 KR KR1019830003755A patent/KR910004191B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI832876A0 (fi) | 1983-08-10 |
EP0101242A3 (en) | 1984-07-04 |
KR910004191B1 (ko) | 1991-06-24 |
JPS5948694A (ja) | 1984-03-19 |
EP0101242A2 (en) | 1984-02-22 |
US4582672A (en) | 1986-04-15 |
FI81698C (sv) | 1990-11-12 |
ZA835144B (en) | 1984-03-28 |
FI832876A (fi) | 1984-02-12 |
GB8320802D0 (en) | 1983-09-21 |
ES8502283A1 (es) | 1984-12-16 |
GB2125200B (en) | 1986-09-10 |
FR2531802B1 (fr) | 1986-12-19 |
ES524844A0 (es) | 1984-12-16 |
EP0101242B1 (en) | 1987-07-15 |
DE3372555D1 (en) | 1987-08-20 |
GB2125200A (en) | 1984-02-29 |
FR2531802A1 (fr) | 1984-02-17 |
KR840005894A (ko) | 1984-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: WESTINGHOUSE ELECTRIC CORPORATION |