JP2014501927A - 原子制御棒位置指示システム - Google Patents
原子制御棒位置指示システム Download PDFInfo
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- JP2014501927A JP2014501927A JP2013546273A JP2013546273A JP2014501927A JP 2014501927 A JP2014501927 A JP 2014501927A JP 2013546273 A JP2013546273 A JP 2013546273A JP 2013546273 A JP2013546273 A JP 2013546273A JP 2014501927 A JP2014501927 A JP 2014501927A
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 29
- 239000002826 coolant Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 8
- 239000007769 metal material Substances 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 26
- 239000000446 fuel Substances 0.000 claims description 23
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000004992 fission Effects 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/12—Sensitive element forming part of control element
-
- 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
- G21C7/12—Means for moving control elements to desired position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
- G01D5/251—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel
- G01D5/2515—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel with magnetically controlled switches, e.g. by movement of a magnet
-
- 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
- G21C7/10—Construction of control elements
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
【選択図】図4
Description
本出願は、米国特許法第119条(e)に基づき、2010年12月20日に出願された米国仮特許出願第61/424,745号(発明の名称:“HIGH TEMPERATURE REED SWITCH POSITION INDICATOR”)の優先権を主張する。
Claims (15)
- 圧力容器(12)と、
前記圧力容器(12)内に封入され、前記圧力容器を通り抜ける冷却材が通過する、核分裂性物質の炉心(14)と、
前記炉心(14)内へ、また、前記炉心(14)外へ往復移動可能な少なくとも1つの制御棒(16)であって、磁化された上部(40)と、前記制御棒がその移動範囲全体に亘って移動すると、前記磁化された上部(40)をその移動長さに亘って移動させる駆動機構(CRDM)とを備え、前記駆動機構は前記駆動機構に電力を供給する給電部を除き実質的に完全に冷却材に浸かっている、前記少なくとも1つの制御棒(16)と、
前記移動長さの少なくとも一部に沿って支持され、冷却材に取り囲まれている制御棒位置指示器(26,46,48)と、
を備えた原子炉(10)であって、
前記制御棒位置指示器は、
前記移動長さに沿う離散的な離隔位置に支持され、それぞれを前記制御棒(16)の前記磁化された上部(40)が通過すると磁気回路を閉じる複数の磁気スイッチモジュール(26)と、
前記磁気スイッチ(26)を封入し、前記取り囲む冷却材から前記磁気スイッチを遮蔽する気密封止された非磁性の管体(42)と、
を備えることを特徴とする原子炉(10)。 - 前記気密封止された非磁性の管体(42)は、実質的に金属材料及び/又はセラミック材料で構成されることを特徴とする、請求項1に記載の原子炉(10)。
- 前記磁気スイッチモジュール(26)のうち少なくとも一部は、直列接続した2つの磁気スイッチ(44)から成ることを特徴とする、請求項1に記載の原子炉(10)。
- 前記磁気スイッチモジュール(26)の各々はモジュール入力及びモジュール出力を有し、前記モジュール入力は直列抵抗負荷(52)とともに前記モジュール入力の各々と第1の位置指示器出力端子との間に接続され、前記モジュール出力は第2の位置指示器出力端子に並列接続され、直列の抵抗負荷が分圧回路網を形成することを特徴とする、請求項1に記載の原子炉(10)。
- 前記磁気スイッチモジュール(26)は非磁性の端子板(64)の上に支持されることを特徴とする、請求項1に記載の原子炉(10)。
- 前記非磁性の端子板(64)は実質的にセラミック材料でできていることを特徴とする、請求項5に記載の原子炉(10)。
- 前記磁気スイッチモジュール(26)の離散的な離隔位置の間隔は、約1 1/2インチ(3.8cm)であることを特徴とする、請求項1に記載の原子炉(10)。
- 前記移動長さの最下部から1 1/4インチ(3.2cm)のところに配置された最も下の前記磁気スイッチモジュールよりも下方にさらに別の磁気スイッチモジュール(26)を含むことを特徴とする、請求項7に記載の原子炉(10)。
- 前記さらに別の磁気スイッチモジュール(26)は、それ以外の磁気スイッチモジュールに並列接続されることを特徴とする、請求項8に記載の原子炉(10)。
- 圧力容器(12)と、
前記圧力容器(12)の炉心(14)に収容された複数の燃料集合体と、
複数の制御棒(18)を前記燃料集合体の少なくとも一部に対して出し入れする制御棒駆動装置(16)と、
前記燃料集合体の少なくとも一部に対する前記制御棒(16)の少なくとも一部の位置を特定する制御棒位置指示システム(26,46,48)と、
を備えた原子炉発電システム(10)であって、
前記制御棒位置指示システムは、前記制御棒駆動装置(CRDM)の一部の上に又はそれに隣接して取り付けられた能動的構成要素と、前記圧力容器(12)を貫通して外に延びる給電リード線とを含み、
前記能動的構成要素は全体が前記圧力容器に格納されることを特徴とする原子炉発電システム(10)。 - 前記制御棒位置指示システム(26,46,48)はリードスイッチ(44)位置指示システムであり、
前記リードスイッチ位置指示システムはセラミック及び/又はステンレス鋼のハウジング(42)内に気密封止されることを特徴とする、請求項10に記載の原子炉発電システム(10)。 - 前記ステンレス鋼は非磁性であることを特徴とする、請求項11に記載の原子炉発電システム(10)。
- 前記リードスイッチ位置指示システム(26,46,48)は高温埋め込み化合物に埋設された複数のリードスイッチ(44)を備えることを特徴とする、請求項11に記載の原子炉発電システム(10)。
- 前記リードスイッチ位置指示システム(26,46,48)は複数のリードスイッチ(44)を備え、前記複数のリードスイッチ(44)の一部は直列接続され、一部は並列接続されることを特徴とする、請求項11に記載の原子炉発電システム(10)。
- 前記リードスイッチ位置指示システム(26,46,48)は、実質的に金属材料、セラミック材料及びガラス材料で構成されることを特徴とする、請求項11に記載の原子炉発電システム(10)。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201061424745P | 2010-12-20 | 2010-12-20 | |
US61/424,745 | 2010-12-20 | ||
US13/326,465 US9620255B2 (en) | 2010-12-20 | 2011-12-15 | Nuclear control rod position indication system |
US13/326,465 | 2011-12-15 | ||
PCT/US2011/065729 WO2012087871A1 (en) | 2010-12-20 | 2011-12-19 | Nuclear control rod position indication system |
Publications (2)
Publication Number | Publication Date |
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JP2014501927A true JP2014501927A (ja) | 2014-01-23 |
JP5863826B2 JP5863826B2 (ja) | 2016-02-17 |
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Country Status (5)
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US (1) | US9620255B2 (ja) |
JP (1) | JP5863826B2 (ja) |
KR (1) | KR101980387B1 (ja) |
CN (1) | CN103329208A (ja) |
WO (1) | WO2012087871A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US9407131B2 (en) | 2012-04-17 | 2016-08-02 | Bwxt Nuclear Operations Group, Inc. | Positional encoder and control rod position indicator for nuclear reactor using same |
CN103778978B (zh) * | 2012-10-25 | 2016-08-10 | 中国核动力研究设计院 | 一体化反应堆主泵检修排水及余热排出方法 |
US9671472B2 (en) | 2014-03-03 | 2017-06-06 | Northrop Grumman Systems Corporation | Linear positioning system utilizing helically polarized magnet |
KR101616004B1 (ko) | 2014-11-27 | 2016-04-27 | 주식회사 우진 | 원자로의 제어봉 위치 확인 장치 및 방법 |
CN104751919B (zh) * | 2015-03-03 | 2017-05-31 | 美核电气(济南)股份有限公司 | 核电控制棒棒位显示系统及其抗干扰显示方法 |
US10269460B2 (en) * | 2015-07-31 | 2019-04-23 | Nuscale Power, Llc | Control rod position indicator |
CN105185422B (zh) * | 2015-08-20 | 2017-08-25 | 绵阳市维博电子有限责任公司 | 一种测量冗余棒位检测装置 |
KR101659822B1 (ko) * | 2015-10-16 | 2016-09-26 | 주식회사 우진 | 원자로의 제어봉 위치 지시기 및 원자로의 제어봉 위치 지시 방법 |
US10020081B2 (en) * | 2016-01-15 | 2018-07-10 | Westinghouse Electric Company Llc | Nuclear control rod position indication system |
US10625949B2 (en) * | 2016-03-25 | 2020-04-21 | Azbil Corporation | Transfer apparatus and storage apparatus |
CN106653121A (zh) * | 2016-11-30 | 2017-05-10 | 中广核研究院有限公司北京分公司 | 用于显示核电站堆芯控制棒位置的棒位指示装置 |
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- 2011-12-19 WO PCT/US2011/065729 patent/WO2012087871A1/en active Application Filing
- 2011-12-19 JP JP2013546273A patent/JP5863826B2/ja active Active
- 2011-12-19 CN CN2011800657215A patent/CN103329208A/zh active Pending
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Also Published As
Publication number | Publication date |
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KR101980387B1 (ko) | 2019-05-20 |
KR20130132943A (ko) | 2013-12-05 |
US9620255B2 (en) | 2017-04-11 |
JP5863826B2 (ja) | 2016-02-17 |
WO2012087871A1 (en) | 2012-06-28 |
US20120155596A1 (en) | 2012-06-21 |
CN103329208A (zh) | 2013-09-25 |
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