JP5291869B2 - 液面測定システム及び方法 - Google Patents
液面測定システム及び方法 Download PDFInfo
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- JP5291869B2 JP5291869B2 JP2006243298A JP2006243298A JP5291869B2 JP 5291869 B2 JP5291869 B2 JP 5291869B2 JP 2006243298 A JP2006243298 A JP 2006243298A JP 2006243298 A JP2006243298 A JP 2006243298A JP 5291869 B2 JP5291869 B2 JP 5291869B2
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- 239000007788 liquid Substances 0.000 title claims description 113
- 238000000034 method Methods 0.000 title claims description 7
- 238000005259 measurement Methods 0.000 claims description 32
- 238000012544 monitoring process Methods 0.000 claims description 21
- 238000009833 condensation Methods 0.000 claims description 20
- 230000005494 condensation Effects 0.000 claims description 20
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 51
- 238000009825 accumulation Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
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- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
- G01F23/162—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid by a liquid column
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/035—Moderator- or coolant-level detecting 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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Description
上で留意したように、凝縮室中の非凝縮性ガスの蓄積、その結果として基準管路および/または可変管路中のそれらの存在は、常時監視容器の液面測定における不正確さにつながり得る。上で論じた従来技術の努力を反映するように、一般にシステム内に存在する液体中のガスの除去(例えば、ブローダウン作業)および/または溶解によって、非凝縮性ガスの蓄積を抑制し、かつ/またはその蓄積を軽減するための様々な装置が開発されてきた。
凝縮液中の非凝縮性ガスの濃度が平衡値を超過し、かつ凝縮液がシステムの他の部分の中へ分配されるとき、例えば、基準脚液面を維持するために水蒸気凝縮液が凝縮室から基準脚の中へ流入するとき、非凝縮性ガスは、基準脚および/またはシステムの他の部分の中へ運搬すべき凝縮液の中に溶解される恐れがある。このような溶解または同伴されたガスが溶液から放出されると、それは液面計器測定システムの基準脚の中に蓄積し、それによって測定液面を変化させ、不規則でかつ/または不正確な液面読取り値を供給し得る。
K 臨界充填水準
1 計測/測定システム/凝縮容器
2 原子炉圧力容器/外側壁
3 水蒸気域
4 水蒸気管路/内部
5 入口
6 凝縮液域
7 排出装置
7a 凝縮液域
8 放出管路/圧力測定管
8a 第1の管脚
8b 弓状上方連結部
8c 管脚
9 冷却段
10 圧力容器/U字管路/下方端
11 上方端
12 ドライウェル構造/ジャケット管
14 原子炉棟
14A 第1の流路
14B 第2の流路
15 圧力容器口
16 基準脚/上昇管
16A 下方流出領域
16B 上方流出領域
17 差圧測定管路
18 圧力検出器/測定装置
18A 第1の測定管路
18B 第2の測定管路
19 圧力板
20 冷却液/差圧変換器
22 液面/空気圧弁
24 原子炉燃料/圧縮ガス管路
26 下方空間/遮断弁
28 上方空間/横溢管路
30 水蒸気または蒸気/通気弁
32 基部
36 上方タップ
38 傾斜水蒸気吸入口
40 断熱材
42 下方タップ
44 可変脚
50 凝縮室
100 液面測定システム
102 常時監視容器
104 上方部分
106 下方部分
106 液体部分
108 水蒸気脚(SL)
110 改良型凝縮室(CC)
114 可変脚(VL)
118 基準脚(RL)
120 制御弁
122 駆動水システム
124 検知器
124A 配線
Claims (5)
- 上表面を有する一定量の液体と、非凝縮性ガスを含有する蒸気とを収容する常時監視容器(102)の中の液面を測定するための液面測定システム(100)であって、
第1の量の液体を収容し、かつ前記蒸気を凝縮するように構成された凝縮室(110)と、
前記蒸気および非凝縮性ガスを前記凝縮室の中へ導入するために前記常時監視容器と前記凝縮室との間に延びる水蒸気脚(108)と、
液体を前記凝縮室から受け入れ、かつそれを前記液体の前記上表面の下方箇所で前記常時監視容器の中へ導入するための可変脚(114)と、
液体を前記常時監視容器(102)の外部に設けられた液体源から受け入れ、かつ前記液体を前記凝縮室の中へ導入するための基準脚(118)と、
圧力差を測定するために前記可変脚と前記基準脚との間に配置された差圧検知器(124)と、
を備え、
前記常時監視容器(102)が原子炉圧力容器である、
液面測定システム(100)。 - 前記可変脚は、前記凝縮室の中に設けられた第1の開口部を介して液体を前記凝縮室から受け入れ、
前記基準脚は、第2の開口部を介して前記液体を前記凝縮室の中へ導入し、
前記第1の開口部は、垂直離隔距離DVだけ前記第2の開口部より上方に配置される、請求項1記載の液面を測定するための液面測定システム(100)。 - 前記常時監視容器(102)は原子炉圧力容器(RPV)であり、
前記液体は水溶液であり、
前記液体源は、前記非凝縮性ガスの平衡状態以下の濃度を有する前記水溶液を供給する、請求項1記載の液面を測定するための液面測定システム(100)。 - 前記水蒸気管脚(108)は概ね水平な構成を有する、請求項1記載の液面を測定するための液面測定システム(100)。
- 上表面を有する一定量の液体と、非凝縮性ガスを含有する蒸気とを収容する常時監視容器(102)の中の液面を測定する方法において、
蒸気を前記常時監視容器から凝縮室(110)の中へ導入し、かつ前記蒸気の一部を凝縮して第1の比率Lsで液体を生成する段階と、
基準脚(118)を介して液体を前記常時監視容器(102)の外部に設けられた液体源から第2の率Lrで前記凝縮室の中へ導入する段階と、
可変脚(114)を介して液体を第3の率Lvで前記凝縮室から除去し、それを前記常時監視容器に戻す段階であって、平均して式
Ls+Lr=Lv
を満たし、それによって前記凝縮室の中で平均基準液面を維持し、且つ前記可変脚の中で可変液面を確立する段階と、
前記平均基準液面と前記可変液面との間の圧力差(124)を検知する段階と、
を含み、
前記常時監視容器(102)が原子炉圧力容器である、
方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/220,672 | 2005-09-08 | ||
US11/220,672 US7845223B2 (en) | 2005-09-08 | 2005-09-08 | Condensing chamber design |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007071878A JP2007071878A (ja) | 2007-03-22 |
JP5291869B2 true JP5291869B2 (ja) | 2013-09-18 |
Family
ID=37565124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006243298A Active JP5291869B2 (ja) | 2005-09-08 | 2006-09-07 | 液面測定システム及び方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7845223B2 (ja) |
EP (1) | EP1762830A3 (ja) |
JP (1) | JP5291869B2 (ja) |
CN (1) | CN1928515A (ja) |
TW (1) | TWI379984B (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8229687B2 (en) * | 2008-12-22 | 2012-07-24 | General Electric Company | System and method for measuring a level of a liquid in a container |
JP6081127B2 (ja) * | 2011-11-11 | 2017-02-15 | 株式会社東芝 | 原子炉水位計の水張り設備 |
JP6270333B2 (ja) * | 2013-04-16 | 2018-01-31 | 日立Geニュークリア・エナジー株式会社 | 原子炉水位計測装置 |
US10576393B2 (en) * | 2015-12-18 | 2020-03-03 | General Electric Company | System and method for condensing moisture in a bioreactor gas stream |
CN107358984A (zh) * | 2017-06-07 | 2017-11-17 | 中国核电工程有限公司 | 反应堆严重事故后安全壳内气体浓度监测*** |
JP7349123B2 (ja) * | 2019-03-18 | 2023-09-22 | 株式会社ヒラカワ | ボイラの水位測定装置 |
CN111337101A (zh) * | 2020-03-13 | 2020-06-26 | 国家能源集团宁夏煤业有限责任公司 | 液位测量装置 |
CN112098268A (zh) * | 2020-09-16 | 2020-12-18 | 巫协森 | 线上测量溶液自动校正液位、容量与浓度方法及*** |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2232840A (en) * | 1938-02-24 | 1941-02-25 | United Gas Improvement Co | Distillation control |
US2678434A (en) * | 1949-09-22 | 1954-05-11 | Reliance Gauge Column Company | Electrically operated boiler alarm control device |
US2870635A (en) * | 1955-10-20 | 1959-01-27 | Justus T Vollbrecht | Compensated water level indicator |
DE1185830B (de) * | 1962-07-27 | 1965-01-21 | Siemens Ag | Hydrostatischer Fluessigkeitsstandmesser fuer Behaelter von heissen kondensierenden Fluessigkeiten |
US3164991A (en) * | 1963-02-05 | 1965-01-12 | Robert E Potthoff | Liquid level indicator |
GB1124961A (en) * | 1965-05-03 | 1968-08-21 | Elliott Brothers London Ltd | Improvements in or relating to apparatus for water level measurement in pressure vessels |
DE2206957C3 (de) * | 1971-02-12 | 1975-03-20 | Fiat S.P.A., Turin (Italien) | Einrichtung zur Messung des Wasserstandes in Dampferzeugern |
US4299116A (en) * | 1979-12-03 | 1981-11-10 | Atlantic Richfield Company | Methods involving differential pressure determinations |
US4394346A (en) * | 1979-12-20 | 1983-07-19 | Tokyo Shibaura Denki Kabushiki Kaisha | Water level gauge for a nuclear reactor |
US4389888A (en) * | 1979-12-21 | 1983-06-28 | Tokyo Shibaura Denki Kabushiki Kaisha | Level meter |
US4332166A (en) * | 1980-08-08 | 1982-06-01 | International Telephone And Telegraph Corporation | Temperature compensation apparatus for a liquid filled conduit |
JPS58140689A (ja) * | 1982-02-16 | 1983-08-20 | 株式会社東芝 | 原子炉圧力容器内の水位測定装置 |
JPS58155317A (ja) * | 1982-03-12 | 1983-09-16 | Hitachi Ltd | 水位計測装置 |
US4927594A (en) * | 1988-08-10 | 1990-05-22 | Westinghouse Electric Corp. | Thermocouple based control rod position indication system |
JPH0694506A (ja) * | 1992-09-11 | 1994-04-05 | Hitachi Ltd | 差圧式水位測定装置 |
US5297174A (en) * | 1993-05-26 | 1994-03-22 | Westinghouse Electric Corp. | Safety system grade apparatus and method for detecting a dropped control rod and malfunctioning exit thermocouples in a pressurized water reactor |
US5365555A (en) * | 1993-06-23 | 1994-11-15 | General Electric Company | Water level measurement system |
JP3230923B2 (ja) * | 1994-03-29 | 2001-11-19 | 株式会社東芝 | 原子炉水位測定装置 |
US5475720A (en) * | 1994-04-08 | 1995-12-12 | Pennsylvania Power & Light Company | Non-condensable gas tolerant condensing chamber |
DE4421273C2 (de) * | 1994-06-21 | 1996-05-23 | Siemens Ag | Kondensgefäß zur Dampfdruckmessung, Verwendung des Kondensgefäßes für eine Füllstandsmessung und eine Dampfdurchsatzmessung sowie Verfahren zum Betrieb eines Kondensgefäßes |
US5541969A (en) * | 1994-08-24 | 1996-07-30 | Combustion Engineering, Inc. | Midloop water level monitor |
US5533074A (en) * | 1995-05-02 | 1996-07-02 | Mansell; Timothy E. | Nuclear reactor coolant level monitoring system |
DE19648688B4 (de) * | 1996-11-25 | 2006-11-09 | Robert Bosch Gmbh | Verfahren zur Erfassung der Füllstandsmenge eines Tanksystems |
US5811690A (en) * | 1997-03-20 | 1998-09-22 | Hershey; George E. | Differential pressure transmitter with highly accurate temperature compensation |
US5901603A (en) * | 1998-07-16 | 1999-05-11 | Isco Inc. | Liquid level monitor |
FR2784311B1 (fr) * | 1998-10-09 | 2000-12-08 | Air Liquide | Dispositif d'agitation d'un liquide dans un reacteur et d'injection d'un gaz dans ce liquide |
JP2001317982A (ja) * | 2000-05-02 | 2001-11-16 | Ishikawajima Harima Heavy Ind Co Ltd | ドラムレベル計測装置 |
DE10156495C1 (de) | 2001-11-16 | 2003-01-02 | Framatome Anp Gmbh | Vorrichtung und Verfahren zum Kühlen eines Reaktordruckbehälters einer Siedewasser-Reaktoranlage |
US7251998B2 (en) * | 2005-05-25 | 2007-08-07 | Bae Systems Information And Electronic Systems Integration Inc. | Liquid measurement system having a plurality of differential pressure probes |
-
2005
- 2005-09-08 US US11/220,672 patent/US7845223B2/en not_active Expired - Fee Related
-
2006
- 2006-08-28 TW TW095131622A patent/TWI379984B/zh active
- 2006-09-04 EP EP06254601A patent/EP1762830A3/en not_active Withdrawn
- 2006-09-07 JP JP2006243298A patent/JP5291869B2/ja active Active
- 2006-09-08 CN CNA2006101513838A patent/CN1928515A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US20080083276A1 (en) | 2008-04-10 |
EP1762830A3 (en) | 2011-01-05 |
TWI379984B (en) | 2012-12-21 |
TW200730777A (en) | 2007-08-16 |
CN1928515A (zh) | 2007-03-14 |
JP2007071878A (ja) | 2007-03-22 |
EP1762830A2 (en) | 2007-03-14 |
US7845223B2 (en) | 2010-12-07 |
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