JP5702553B2 - 振動を減衰するシステム - Google Patents
振動を減衰するシステム Download PDFInfo
- Publication number
- JP5702553B2 JP5702553B2 JP2010147640A JP2010147640A JP5702553B2 JP 5702553 B2 JP5702553 B2 JP 5702553B2 JP 2010147640 A JP2010147640 A JP 2010147640A JP 2010147640 A JP2010147640 A JP 2010147640A JP 5702553 B2 JP5702553 B2 JP 5702553B2
- Authority
- JP
- Japan
- Prior art keywords
- slip joint
- diffuser
- collar
- inlet
- inlet mixer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000013016 damping Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 18
- 238000009835 boiling Methods 0.000 claims description 6
- 239000003758 nuclear fuel Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
- G21C15/243—Promoting flow of the coolant for liquids
- G21C15/25—Promoting flow of the coolant for liquids using jet pumps
-
- 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)
- Jet Pumps And Other Pumps (AREA)
Description
a.圧力容器(RPV)と;
b.入口ミキサと;
c.滑り継手を介して入口ミキサと一体に結合されたディフューザと;滑り継手と関連する漏れを減少するように構成された鍔部とを具備し、流路は滑り継手から流出する流体の流れを制限し且つ滑り継手に隣接して配置される。
15 給水入口
20 給水スパージャ
25 ダウンカマーアニュラス
30 炉心シュラウド
35 核燃料炉心
40 燃料束集合体
45 トップガイド
50 炉心支持板
55 炉心下部プレナム
60 炉心上部プレナム
65 シュラウドヘッド
70 直立管
75 汽水分離器
80 再循環水出口
85 ジェットポンプ構体
90 再循環水入口
95 入口ミキサ
100 入口上昇管
105 炉心スプレー管
110 ノズル
115 ディフューザ
120 中間部材
125 ポンプデッキ
130 上昇管
135 上昇管エルボ
140 抑制ブラケット
145 上昇管ブレース
155 中間構体
160 滑り継手
165 外壁面
170 内壁面
175 隙間
180 境界面
185 開放端部
190 開放端部
225 ディフューザ鍔部
230 溝穴
Claims (8)
- 搬送する流体の中に一部が浸漬されている導管系が受ける流体励起振動(FIV)を軽減するように構成されたシステムにおいて、
a)入口ミキサ(95)及びディフューザ(115)を一体に結合する圧力容器の滑り継手(160)と、
b)前記滑り継手(160)から流出する流体の流れを制限し且つ前記滑り継手(160)に隣接して配置され、前記滑り継手(160)と関連する漏れを減少するように構成された鍔部(225)と、
を具備し、
前記鍔部(225)は、前記滑り継手(160)を通して起こる圧力降下を増加する形状に形成され、
前記形状は前記滑り継手(160)の出口流れを制限する、
システム。 - 前記鍔部(225)の一部は前記ディフューザ(115)の外面を越えて延出する、請求項1に記載のシステム。
- 前記鍔部(225)はU字状の形状を有する請求項1または2に記載のシステム。
- 前記鍔部(225)は前記入口ミキサ(95)の外面に装着される請求項3に記載のシステム。
- 前記鍔部(225)は、前記ディフューザ(115)の案内棒の一部が貫通する溝穴(230)を具備する請求項4に記載のシステム。
- 前記圧力降下の増加は以前の圧力降下の約2倍から約4倍の範囲である請求項1から5のいずれかに記載のシステム。
- 前記圧力容器は原子炉圧力容器(10)である請求項1から6のいずれかに記載のシステム。
- 前記原子炉圧力容器(10)は沸騰水型軽水炉の一部である請求項7に記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/494,395 | 2009-06-30 | ||
US12/494,395 US8948335B2 (en) | 2009-06-30 | 2009-06-30 | System for dampening vibration |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011012679A JP2011012679A (ja) | 2011-01-20 |
JP5702553B2 true JP5702553B2 (ja) | 2015-04-15 |
Family
ID=43037716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010147640A Active JP5702553B2 (ja) | 2009-06-30 | 2010-06-29 | 振動を減衰するシステム |
Country Status (6)
Country | Link |
---|---|
US (1) | US8948335B2 (ja) |
EP (1) | EP2287857B1 (ja) |
JP (1) | JP5702553B2 (ja) |
ES (1) | ES2556801T3 (ja) |
MX (1) | MX2010006905A (ja) |
TW (1) | TWI537513B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012116283A1 (en) * | 2011-02-25 | 2012-08-30 | Areva Np Inc. | Vibration reduction techniques for jet pump slip joints |
US9589684B2 (en) | 2012-05-16 | 2017-03-07 | Ge-Hitachi Nuclear Energy Americas Llc | Apparatuses and methods for controlling movement of components |
US10458578B2 (en) | 2015-12-02 | 2019-10-29 | Ge-Hitachi Nuclear Energy Americas Llc | Method and apparatus for repairing a jet pump slip joint |
US10753374B2 (en) | 2016-05-09 | 2020-08-25 | Ge-Hitachi Nuclear Energy Americas Llc | Slip joint clamps and methods for use in a nuclear reactor jet pump |
CN109473194B (zh) * | 2018-11-12 | 2024-05-14 | 中国原子能科学研究院 | 一种用于深水池式低温供热堆的衰减筒 |
CN114458854B (zh) * | 2022-02-17 | 2023-08-04 | 中国核电工程有限公司 | 一种降低管道振动疲劳的方法、管道 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4285770A (en) * | 1979-07-12 | 1981-08-25 | General Electric Company | Jet pump with labyrinth seal |
JPS5841610Y2 (ja) | 1979-12-17 | 1983-09-20 | 小泉産業株式会社 | 照明器具 |
JPS57204499U (ja) | 1981-06-24 | 1982-12-25 | ||
JPS5815798A (ja) | 1981-07-20 | 1983-01-29 | Hitachi Ltd | ジエツトポンプ |
US5876146A (en) * | 1995-10-27 | 1999-03-02 | General Electric Company | Apparatus and methods for repairing jet pump diffusers in a nuclear reactor |
US6438192B1 (en) * | 2000-10-30 | 2002-08-20 | General Electric Company | Jet pump slip joint seal |
US6450774B1 (en) * | 2000-12-21 | 2002-09-17 | General Electric Company | Method and system for a jet pump slip joint ovalization |
US20080031741A1 (en) * | 2006-08-02 | 2008-02-07 | Torres Martin R | Jet pump slip joint with axial grooves |
US20080029969A1 (en) * | 2006-08-02 | 2008-02-07 | Torres Martin R | Jet pump slip joint piston ring seal |
-
2009
- 2009-06-30 US US12/494,395 patent/US8948335B2/en not_active Expired - Fee Related
-
2010
- 2010-06-18 MX MX2010006905A patent/MX2010006905A/es unknown
- 2010-06-22 TW TW099120307A patent/TWI537513B/zh active
- 2010-06-28 ES ES10167571.8T patent/ES2556801T3/es active Active
- 2010-06-28 EP EP10167571.8A patent/EP2287857B1/en active Active
- 2010-06-29 JP JP2010147640A patent/JP5702553B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
ES2556801T3 (es) | 2016-01-20 |
TW201104128A (en) | 2011-02-01 |
US8948335B2 (en) | 2015-02-03 |
EP2287857B1 (en) | 2015-10-28 |
US20100329412A1 (en) | 2010-12-30 |
TWI537513B (zh) | 2016-06-11 |
EP2287857A1 (en) | 2011-02-23 |
MX2010006905A (es) | 2011-01-05 |
JP2011012679A (ja) | 2011-01-20 |
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