MY171943A - Combined active and passive emergency shutdown system and method - Google Patents
Combined active and passive emergency shutdown system and methodInfo
- 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
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.
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)
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)
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 |
-
2012
- 2012-09-27 CN CN201210374796.8A patent/CN102881340B/en active Active
-
2013
- 2013-09-24 MY MYPI2015700869A patent/MY171943A/en unknown
- 2013-09-24 WO PCT/CN2013/084045 patent/WO2014048291A1/en active Application Filing
- 2013-09-24 GB GB1504153.6A patent/GB2519920B/en active Active
-
2015
- 2015-04-23 ZA ZA2015/02771A patent/ZA201502771B/en unknown
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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