MY171943A - Combined active and passive emergency shutdown system and method - Google Patents

Combined active and passive emergency shutdown system and method

Info

Publication number
MY171943A
MY171943A MYPI2015700869A MYPI2015700869A MY171943A MY 171943 A MY171943 A MY 171943A MY PI2015700869 A MYPI2015700869 A MY PI2015700869A MY PI2015700869 A MYPI2015700869 A MY PI2015700869A MY 171943 A MY171943 A MY 171943A
Authority
MY
Malaysia
Prior art keywords
reactor
emergency shutdown
injection
protection system
subsystem
Prior art date
Application number
MYPI2015700869A
Inventor
Xia Zhao
Yong Yu
Weifeng Huang
Bin Zhao
Original Assignee
China Nuclear Power Eng Co Ltd
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 China Nuclear Power Eng Co Ltd filed Critical China Nuclear Power Eng Co Ltd
Publication of MY171943A publication Critical patent/MY171943A/en

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
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • G21C9/033—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by an absorbent fluid
    • 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
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • G21C9/027—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by fast movement of a solid, e.g. pebbles
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/22—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of a fluid or fluent neutron-absorbing material, e.g. by adding neutron-absorbing material to the coolant
    • 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

The present invention relates to reactor design technology, and more particularly, to a system and method for combined active and passive emergency shutdown. The said system comprises a control rod emergency shutdown subsystem (5) and an emergency boron injection subsystem (7). A reactor trip breaker (6) of the control rod emergency shutdown subsystem (5) is connected with a reactor protection system to receive reactor emergency shutdown signals issued by the reactor protection system and to cause control rods to drop in place. The emergency boron injection subsystem (7) comprises a concentrated boron tank (8) and an injection pump (10) disposed on an injection line (11). The concentrated boron tank (8) is connected with a reactor pressure vessel and core (1) through an injection line (11). A control system of the injection pump (10) is connected with a control system of the reactor protection system to receive signals from the reactor protection system indicating failure of emergency shutdown or excessive neutron flux that are issued by the reactor protection system, causing the injection pump (10) to inject concentrated boron into the reactor pressure vessel and core (1). The present invention enhances the reliability of the emergency shutdown system under accident conditions and, consequently, the safety of reactors.
MYPI2015700869A 2012-09-27 2013-09-24 Combined active and passive emergency shutdown system and method MY171943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210374796.8A CN102881340B (en) 2012-09-27 2012-09-27 A kind of active and non-active last moment emergency shut-down of combining and method

Publications (1)

Publication Number Publication Date
MY171943A true MY171943A (en) 2019-11-08

Family

ID=47482632

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2015700869A MY171943A (en) 2012-09-27 2013-09-24 Combined active and passive emergency shutdown system and method

Country Status (5)

Country Link
CN (1) CN102881340B (en)
GB (1) GB2519920B (en)
MY (1) MY171943A (en)
WO (1) WO2014048291A1 (en)
ZA (1) ZA201502771B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102881340B (en) * 2012-09-27 2015-09-23 中国核电工程有限公司 A kind of active and non-active last moment emergency shut-down of combining and method
CN104332207B (en) * 2013-07-22 2017-01-18 中国核动力研究设计院 Method for automatically stopping coolant pump under reactor coolant loss accident condition
US10304575B2 (en) 2013-12-26 2019-05-28 Nuscale Power, Llc Actuating a nuclear reactor safety device
US20170140842A1 (en) * 2015-11-12 2017-05-18 Westinghouse Electric Company Llc Subcritical Reactivity Monitor Utilizing Prompt Self-Powered Incore Detectors
CN106887259A (en) * 2015-12-15 2017-06-23 中国核动力研究设计院 A kind of nuclear power plant fast and safely reactor shut-off system
US11024433B2 (en) 2016-12-30 2021-06-01 Nuscale Power, Llc Control rod damping system
CN109427422A (en) * 2017-08-29 2019-03-05 华北电力大学 A kind of dense boric acid injected system of emergency is as second set of reactor shut-off system of presurized water reactor
US11105526B1 (en) 2017-09-29 2021-08-31 Integrated Global Services, Inc. Safety shutdown systems and methods for LNG, crude oil refineries, petrochemical plants, and other facilities
RU184861U1 (en) * 2018-04-10 2018-11-13 Акционерное общество "Центральный конструкторско-технологический институт арматуростроения" NUCLEAR STEAM PRODUCTION UNIT
CN109473185B (en) * 2018-11-13 2022-07-29 中国核动力研究设计院 Testing device and testing method for automatic chemical reactor shutdown system
CN109686465A (en) * 2018-11-27 2019-04-26 中广核研究院有限公司 A kind of diagnostic method of reactor shutdown failure
CN116313178B (en) * 2023-04-13 2024-03-22 中国原子能科学研究院 Reactor and reactivity control system thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118692A (en) * 1984-11-13 1986-06-05 ウエスチングハウス　エレクトリック　コ−ポレ−ション Method of operating generation system of pressurized water type reactor
JPH03279892A (en) * 1990-03-29 1991-12-11 Toshiba Corp Setup method for trip level of control rod extraction monitor device
CN1447342A (en) * 2003-04-04 2003-10-08 清华大学 Second shutdown system of absorption ball applicable to gas-cooled reactor
CN100341075C (en) * 2004-12-03 2007-10-03 大亚湾核电运营管理有限责任公司 Method for improving integrated reliability of nuclear power station safety injection system
FR2910688A1 (en) * 2006-12-21 2008-06-27 Data Systems & Solutions Soc P CONTROL SYSTEM FOR NUCLEAR REACTOR BAR CONTROL MECHANISMS.
CN202887744U (en) * 2012-09-27 2013-04-17 中国核电工程有限公司 Combined active and passive emergency shut-down system
CN102881340B (en) * 2012-09-27 2015-09-23 中国核电工程有限公司 A kind of active and non-active last moment emergency shut-down of combining and method

Also Published As

Publication number Publication date
GB2519920B (en) 2018-08-08
CN102881340B (en) 2015-09-23
ZA201502771B (en) 2016-02-24
CN102881340A (en) 2013-01-16
WO2014048291A1 (en) 2014-04-03
GB201504153D0 (en) 2015-04-29
GB2519920A (en) 2015-05-06

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