JP5748169B2 - 加圧水型原子炉の冷却水に有機化合物を添加するプロセス - Google Patents
加圧水型原子炉の冷却水に有機化合物を添加するプロセス Download PDFInfo
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- JP5748169B2 JP5748169B2 JP2010004189A JP2010004189A JP5748169B2 JP 5748169 B2 JP5748169 B2 JP 5748169B2 JP 2010004189 A JP2010004189 A JP 2010004189A JP 2010004189 A JP2010004189 A JP 2010004189A JP 5748169 B2 JP5748169 B2 JP 5748169B2
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- 150000002894 organic compounds Chemical class 0.000 title claims description 44
- 238000000034 method Methods 0.000 title claims description 26
- 230000008569 process Effects 0.000 title claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 22
- 239000000498 cooling water Substances 0.000 title description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 46
- 229910052799 carbon Inorganic materials 0.000 claims description 46
- 239000002826 coolant Substances 0.000 claims description 36
- 238000005260 corrosion Methods 0.000 claims description 36
- 230000007797 corrosion Effects 0.000 claims description 36
- 239000001257 hydrogen Substances 0.000 claims description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 150000001299 aldehydes Chemical class 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 235000005985 organic acids Nutrition 0.000 claims description 3
- 230000009257 reactivity Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 150000002484 inorganic compounds Chemical class 0.000 claims 1
- 229910010272 inorganic material Inorganic materials 0.000 claims 1
- 235000013619 trace mineral Nutrition 0.000 claims 1
- 239000011573 trace mineral Substances 0.000 claims 1
- 238000005253 cladding Methods 0.000 description 69
- 239000000446 fuel Substances 0.000 description 25
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 24
- 239000004246 zinc acetate Substances 0.000 description 24
- 238000000151 deposition Methods 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- 230000008021 deposition Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 239000006259 organic additive Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 238000001983 electron spin resonance imaging Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- -1 but not limited to Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004660 morphological change Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000003608 radiolysis reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
- G21C17/0225—Chemical surface treatment, e.g. corrosion
-
- 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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
さらに、クラッド付着物の付着及びその形態に有利な変化を生ぜしめる原子炉冷却材添加物であって、既知の添加物の課題とは無縁の添加物を見つけるのが望ましい。かかる添加物は、水を冷却材として用いる原子炉の炉心設計において世界中の種々の発電所への使用が望ましい。
原子炉は加圧水型原子炉である。
、また、炉心滞留時間が短く、炭素含有量が高くなるが、これは炉心外の酸化物薄膜に及ぼす影響は最小またはほとんどなく、亜鉛の添加なしに得られる。
酢酸亜鉛の添加は、”Pressurized Water Reactor Primary Water Zinc Application Guidelines”, EPRI, Palo Alto, CA:2006.1013420に論じされているように、多くのPWRにおいて、炉心外の照射野を低下させ、RCSの圧力境界だけでなくRCS内の構造コンポーネントの構成にも使用されるオーステナイトステンレス鋼及びニッケル系合金にPWSCC保護を与えるために用いられている。Evaluation of Zinc Addition to the Primary Coolant of PWRs, EPRI, Palo Alto, CA, October 1996, TR-106358, Vol. 1に記載されるように、サイクル10の間プラントAで最初に亜鉛が添加された後、燃料交換による運転停止時に炉心を可視検査した結果、均一に見える黒色付着物が燃料集合体の高さ全体を覆っていることが判明した。これらの燃料集合体から削り取ったクラッドの試料を測定したところ、クラッド付着物は、最大のサブクール核沸騰が予想され且つ通常はクラッドが最大厚さになることが観察された最高温度のスパンにおいてさえ、このプラントの前の運転サイクルに比較すると極端に薄い(<0.5μm)ことがわかった。このクラッドの目で見える外観は非常に特異であると記載されていた。
of Poolside Measurements Following Two Cycles of Zinc Addition, EPRI, Palo Alto
CA: 2006.1013425に記載されている。サイクル14後の炉心クラッド検査では、炭素が炉心クラッド付着物の元素成分であることが注目された。サイクル13の間活性度が低かった(即ち、比放射能が少なく滞留時間が少なかった)クラッドへの移行がサイクル14において継続していた。
Claims (11)
- 一次回路と炉心を有し、炉心冷却材が一次回路を流れる加圧水型原子炉において、有機化合物を添加して炭素元素を生成させるプロセスであって、
加圧水型原子炉の一次回路を流れる炉心冷却材に十分な量の有機化合物を添加するステップより成り、有機化合物は
炭素及び水素
炭素、水素及び窒素
炭素、水素及び酸素
炭素、水素、窒素及び酸素
より成る群から選択した元素を含み、
十分な量の、反応度を制御するためのホウ酸、還元条件を提供するための水素及びpHを目標制御領域に維持するための添加物並びに炉心冷却材中に自然に存在する微量元素を除き、炉心冷却材には無機化合物が存在しない
ことを特徴とする加圧水型原子炉のためのプロセス。 - 等価炭素元素添加率が約1mg/時乃至約10g/時の範囲に維持される請求項1のプロセス。
- 炉心冷却材は原子炉の原子炉冷却系内にある請求項1のプロセス。
- 有機化合物は有機酸類、アルコール類、アミン類、アルデヒド類、ケトン類及びそれらの混合物より成る群から選択される請求項1のプロセス。
- 有機化合物は酢酸、メタノール、エタノール、エチルアミン、エタノールアミン、及びそれらの混合物から成る群から選択される請求項1のプロセス。
- 有機化合物は実質的に可溶性である請求項1のプロセス。
- 原子炉炉心に重量比で約15乃至約20%の範囲の炭素元素を含有する腐食生成物を付着させる請求項1のプロセス。
- 原子炉炉心の放射線レベルは、ガンマ線及び中性子から最大約4000Mrad/時である請求項1のプロセス。
- 原子炉炉心の水素濃度を約25乃至約50cc/kgの値に維持することを含む請求項1のプロセス。
- 有機化合物の添加を連続式で行なう請求項1のプロセス。
- 有機化合物の添加をバッチ方式で行なう請求項1のプロセス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/414,748 US8233581B2 (en) | 2009-03-31 | 2009-03-31 | Process for adding an organic compound to coolant water in a pressurized water reactor |
US12/414,748 | 2009-03-31 |
Publications (2)
Publication Number | Publication Date |
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JP2010243474A JP2010243474A (ja) | 2010-10-28 |
JP5748169B2 true JP5748169B2 (ja) | 2015-07-15 |
Family
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JP2010004189A Expired - Fee Related JP5748169B2 (ja) | 2009-03-31 | 2010-01-12 | 加圧水型原子炉の冷却水に有機化合物を添加するプロセス |
Country Status (4)
Country | Link |
---|---|
US (2) | US8233581B2 (ja) |
JP (1) | JP5748169B2 (ja) |
CN (1) | CN101853707B (ja) |
FR (1) | FR2943833B1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US9266756B2 (en) | 2012-04-19 | 2016-02-23 | Westinghouse Electric Company Llc | Mobile boration system |
US9281087B2 (en) | 2012-04-19 | 2016-03-08 | Westinghouse Electric Company Llc | Mobile boration system |
US9384862B2 (en) | 2012-06-22 | 2016-07-05 | Ge-Hitachi Nuclear Energy Americas Llc | Method of fabricating liquid-metal coolants for nuclear reactors |
JP6412099B2 (ja) | 2013-03-15 | 2018-10-24 | セラダイン,インコーポレイティド | 原子炉を冷却する方法及び、多面体水素化ホウ素アニオン又はカルボランアニオンを含む原子炉 |
EP3134902B1 (en) | 2014-04-25 | 2021-03-31 | Ceradyne Inc. | Nuclear fuel storage pool including aqueous solution of polyhedral boron hydride anions or carborane anions and methods of using the same |
DE102015120722B4 (de) * | 2015-11-30 | 2017-07-27 | Areva Gmbh | Kernkraftwerk und Verfahren zum Betreiben eines Kernkraftwerks |
CN109036598B (zh) * | 2018-08-03 | 2021-08-24 | 中国核动力研究设计院 | 一种适用于棒控堆芯的反应堆冷却剂水质控制方法 |
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JP2002055193A (ja) * | 2000-08-10 | 2002-02-20 | Toshiba Corp | 原子力発電プラントの給水系及びそのクラッド低減方法 |
JP2002162370A (ja) | 2000-11-22 | 2002-06-07 | Matsushita Electric Ind Co Ltd | 基板のx線検査方法及びそれに用いるx線検査装置 |
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-
2009
- 2009-03-31 US US12/414,748 patent/US8233581B2/en active Active
- 2009-06-09 CN CN200910159590.1A patent/CN101853707B/zh not_active Expired - Fee Related
- 2009-07-20 FR FR0955015A patent/FR2943833B1/fr active Active
-
2010
- 2010-01-12 JP JP2010004189A patent/JP5748169B2/ja not_active Expired - Fee Related
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2012
- 2012-06-20 US US13/528,557 patent/US9443622B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR2943833A1 (fr) | 2010-10-01 |
US8233581B2 (en) | 2012-07-31 |
FR2943833B1 (fr) | 2014-09-05 |
US9443622B2 (en) | 2016-09-13 |
CN101853707B (zh) | 2014-09-03 |
US20100246746A1 (en) | 2010-09-30 |
US20120288050A1 (en) | 2012-11-15 |
CN101853707A (zh) | 2010-10-06 |
JP2010243474A (ja) | 2010-10-28 |
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