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1. 发明授权

EP3182416B1 NUCLEAR FUEL ASSEMBLY WITH BALANCING PLATE 有权
公开(公告)号：EP3182416B1
公开(公告)日：2018-09-26
申请号：EP15201167.2
申请日：2015-12-18
申请人： Westinghouse Electric Sweden AB
发明人： MÅNSSON, Markus , ANDERSSON, Patrik
IPC分类号： G21C3/32 , G21C3/322
CPC分类号： G21C3/32 , G21C2003/3225 , Y02E30/40
摘要： A fuel assembly (1) for a boiling water reactor comprising fuel rods (3), two or three water rods (30), a tie plate (4), spacers (6), a handle (10), and a joint arrangement (11, 12, 13, 20-25, 31, 32, 33) is provided. The joint arrangement is configured to transfer a vertical lifting force from the handle to the water rods. The joint arrangement comprises a balancing element (20) arranged between the water rods (30) and the handle (10). The joint arrangement comprises a first joint (13) arranged between the balancing element (20) and the handle (10) and a set of second joints (33) arranged between a respective one of said water rods (30) and said balancing element (20). The first joint (13) and the set of second joints (33) are configured to allow a rotational movement of said balancing element (20) in relation to said handle (10) as well as in relation to said water rods (30) in order to balance lifting forces in the water rods. The first joint (13) and each one of said second joints (33) comprise a pair of spherically rounded joint surfaces (11, 23; 25, 32).

2. 发明公开

EP3001425A1 Fuel assembly for a nuclear boiling water reactor 有权
标题翻译： BrennelementfürSiedewasserkernreaktor
公开(公告)号：EP3001425A1
公开(公告)日：2016-03-30
申请号：EP14186174.0
申请日：2014-09-24
申请人： Westinghouse Electric Sweden AB
发明人： Bergmann, Uffe , Aurén, Jonas , Johansson, Lars-Erik
IPC分类号： G21C3/322 , G21C3/326 , G21C3/328
CPC分类号： G21C3/322 , G21C3/326 , G21C3/328 , G21C3/34 , G21C19/10 , G21C2003/3225 , Y02E30/31 , Y02E30/38
摘要： The present invention concerns a fuel assembly (4) for a nuclear power boiling water reactor, comprising:
a fuel channel (6) defining a central fuel channel axis (8),
fuel rods (10), each having a central fuel rod axis (12),
at least 3 water channels (14) for non-boiling water, each water channel having a central water channel axis (16) and each water channel having a larger cross-sectional area than the cross-sectional area of (the average) fuel rod (10).
The fuel rods (10) comprise a first group of full length fuel rods and a second group of shorter fuel rods. The fuel assembly (4) comprises at least 5 fuel rods which belong to said second group and which are positioned such that the central fuel rod axis (12) of each of these at least 5 fuel rods is closer to the central fuel channel axis (8) than any of the water channel axes (16) of the water channels (14).
摘要翻译：本发明涉及一种用于核电沸水反应堆的燃料组件（4），包括：限定中心燃料通道轴线（8）的燃料通道（6），燃料棒（10），每个具有中心燃料棒轴线 12），至少3个用于非沸水的水通道（14），每个水通道具有中心水通道轴线（16），并且每个水通道具有比横截面积大的横截面积（平均值）燃料棒（10）。燃料棒（10）包括第一组全长燃料棒和第二组较短的燃料棒。燃料组件（4）包括属于所述第二组的至少5个燃料棒，其被定位成使得这些至少5个燃料棒中的每个燃料棒的中心燃料棒轴线（12）更靠近中心燃料通道轴线 8）比水通道（14）的任何一个水通道轴线（16）。

3. 发明授权

EP0526777B1 Boiling water reactor fuel assembly comprising water rods 失效
标题翻译：包含水棒的沸水反应堆燃料组件
公开(公告)号：EP0526777B1
公开(公告)日：1996-06-26
申请号：EP92112018.4
申请日：1992-07-15
申请人： Siemens Power Corporation
发明人： Patterson, John F. , Ewing, Richard H.
IPC分类号： G21C3/322 , G21C3/16
CPC分类号： G21C3/16 , G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38

4. 发明公开

EP0480702A1 Nuclear fuel assembly comprising a water-by-pass tube 失效
标题翻译： Kernbrennstabbündelmit Wasserrohr。
公开(公告)号：EP0480702A1
公开(公告)日：1992-04-15
申请号：EP91309277.1
申请日：1991-10-09
申请人： GENERAL ELECTRIC COMPANY
发明人： Oosterkamp, Willem Jan
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38
摘要： A fuel bundle for a natural-circulation boiling-water reactor includes at least one coolant bypass tube 210 which is at least partially open at both its top 234 and bottom and extends about 2/3 of the bundle height. Water within the bypass tube remains liquid. As it exits the top of the bypass tubes 234, it merges with and "cools" the flow exterior to the tube. This arrangement reduces the pressure drop across the core, increasing coolant flow. In addition, the merging coolant helps improve heat transfer at the maximum heat flux levels 232 within the core. Lateral holes 236 through the bypass tube 210 can further enhance with heat transfer distribution in the core. The reduced pressure drop in the core and the more uniform heat flux distribution both permit a reactor to operate at higher power ratings.
摘要翻译：用于自然循环沸水反应堆的燃料束包括至少一个冷却剂旁通管210，冷却剂旁通管210在其顶部234和底部至少部分地开口并且延伸约束高度的2/3。旁路管内的水保持液体。当它离开旁路管234的顶部时，它与管外部的流体融合并“冷却”。这种布置减少了芯上的压降，增加了冷却剂流量。此外，合流冷却剂有助于改善芯内最大热通量水平232的热传递。通过旁路管210的横向孔236可以通过芯中的热传递分布进一步增强。芯中减小的压降和更均匀的热通量分布均允许反应堆以更高的额定功率工作。

5. 发明公开

EP0465925A1 Flow diverter with flow tabs for large water rod 失效
标题翻译： FlüssigkeitsverteilermitStrömungsleitblechenfürein Wasserrohr grossen Durchmessers。
公开(公告)号：EP0465925A1
公开(公告)日：1992-01-15
申请号：EP91110505.4
申请日：1991-06-25
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil , Matzner, Bruce (NMN)
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/38
摘要： In a nuclear reactor fuel bundle for a boiling nuclear reactor having a large water rod, provision is made in the two-phase region of the fuel bundle for flow tabs on the large water rod for diverting liquid water moderator flowing along the water rod to adjacent fuel rods for the more efficient generation of steam and power.
摘要翻译：在用于具有大水杆的沸腾核反应堆的核反应堆燃料束中，在大水杆上的用于流动翼片的燃料束的两相区域中设置用于将沿着水杆流动的液体水慢化剂转向相邻燃料棒用于更有效地产生蒸汽和动力。

6. 发明公开

EP0283935A2 Nuclear fuel assembly 失效
标题翻译： Kernbrennstabbündel。
公开(公告)号：EP0283935A2
公开(公告)日：1988-09-28
申请号：EP88104261.8
申请日：1988-03-17
申请人： HITACHI, LTD.
发明人： Masuhara, Yasuhiro , Yokomizo, Osamu , Inoue, Kotaro , Uchikawa, Sadao , Aoyama, Motoo , Yamashita, Junichi , Yoshimoto, Yuichiro , Yasuda, Tetsuo , Hirakawa, Hiromasa
IPC分类号： G21C3/32
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： Herein disclosed is a fuel assembly which includes a plurality of fuel rods (2) and water rods (3). The sum A w (cm²) of the cross sectional areas of the water rods (3) in the fuel assembly, the cross-sectional area A CH (cm²) of the fuel assembly (7), the sum A rod (cm²) of the cross-sectional areas of the fuel rods (2) in the fuel assembly and the cladding thickness δ (mm) are set so that the ratio A rod /A CH satisfies the following three formulas:

(A rod /A CH )
≦ -1.050 (A W /A CH ) + 0.469;
(A rod /A CH )
≦ (0.337δ + 0.1421)(A W /A CH ) + 0.0804δ + 0.302;

and

(A rod /A CH )
> (-0.0428δ - 0.0359) × (A W /A CH ) + 0.1449δ + 0.2745.

Thus, it is possible to augment the stability margin of the fuel assembly and to reduce the fuel cycle cost drastically.
摘要翻译：这里公开了一种燃料组件，其包括多个燃料棒（2）和水棒（3）。燃料组件中的水棒（3）的横截面面积的总和Aw（cm 2），燃料组件（7）的横截面积ACH（cm 2），总和Arod 燃料组件中的燃料棒（2）的横截面面积和包层厚度增量（mm）的比率Arod / ACH满足以下三个公式：（Arod / ACH）（-0.0428δ-0.0359）×（AW / ACH）+0.1449δ+ 0.2745。因此，可以增加燃料组件的稳定裕度并大大降低燃料循环成本。

7. 发明公开

EP0224728A1 Siedewasser-Kernreaktorbrennelement 无效
标题翻译：沸水核反应堆燃料组件。
公开(公告)号：EP0224728A1
公开(公告)日：1987-06-10
申请号：EP86115159.5
申请日：1986-10-31
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Lill, Günther, Dr. Dipl.-Phys. , Holzer, Rolf, Dipl.-Phys. , Lettau, Hans, Dipl.-Ing. (FH)
IPC分类号： G21C3/32
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/38
摘要： Bei einem Kernreaktorbrennelement mit gleichmäßig gekühlten Brennstäben (7) und einem langgestreckten Brennelementkasten (5) mit quadratischem Querschnitt sind die Brennstäbe (7) mit Abstand voneinander in Maschen (12) eines in einem Kastenquerschnitt gedachten Gitters mit zu den Kastenwänden parallelen Seiten angeordnet: der Querschnitt eines prismatisch ausgeführten Wasserrohres (4), das Abstand vom Brennelementkasten (5) hat, deckt mehr als eine Masche (12) des gedachten Gitters (10, 11) ab, während sich überall zwischen dem Wasserrohr (4) und dem Brennelementkasten (5) Maschen (12) befinden, die mit Brennstäben (7) besetzt sind.
摘要翻译：在具有均匀冷却的燃料棒的核反应堆燃料元件（7）和一个细长的燃料元件盒（5）具有正方形横截面是燃料棒（7）布置在彼此相距一定距离在假想的网格（12）中的盒的横截面光栅平行于箱壁侧面; 执行的水管棱柱的横截面（4），从所述燃料通道（5）的距离，覆盖从，而（水管之间的任何位置（4）和所述燃料通道的假想格子的多于一个线圈（12）（10,11） 5）针迹（12），其（与燃料棒7）被填充。

8. 发明公开

EP3001426A1 Fuel assembly for boiling water reactor 审中-公开
标题翻译： BiednelementfürSiedewassereaktor
公开(公告)号：EP3001426A1
公开(公告)日：2016-03-30
申请号：EP14186178.1
申请日：2014-09-24
申请人： Westinghouse Electric Sweden AB
发明人： Helmersson, Sture , Månnson, Markus , Söderlund, Anders
IPC分类号： G21C3/322 , G21C3/33
CPC分类号： G21C3/336 , G21C3/20 , G21C3/322 , G21C3/33 , G21C19/10 , G21C2003/3225 , G21Y2002/206 , Y02E30/31 , Y02E30/38
摘要： A fuel assembly for a boiling water reactor, comprises fuel rods (2), a tie plate (3), a handle device (4), and at least two water rods (7) attached to the tie plate and to the handle device. A plurality of spacers (8a, 8b), define first passages (8') for some of the fuel rods, and second passages (8") for the water rods. Each water rod comprises a tube part (7a) attached to the tie plate, and a solid part (7b) attached to the handle device. The tube part permits a flow of coolant. The spacers comprise primary spacers (8a) and a secondary spacer (8b). The primary spacers are attached to the tube parts. The tie plate, the water rods, the primary spacers and the handle device form a support structure carrying the weight of the fuel rods. The secondary spacer is positioned at the solid part of the respective water rod.
摘要翻译：一种用于沸水反应堆的燃料组件，包括燃料棒（2），连接板（3），手柄装置（4）和至少两个附接到连接板和手柄装置的水杆（7）。多个间隔件（8a，8b）限定了一些燃料棒的第一通道（8'）和用于水杆的第二通道（8“），每个水杆包括一个连接在该系杆上的管件（7a）板和连接到手柄装置的实心部分（7b），管部件允许冷却剂流动，间隔件包括主间隔件（8a）和辅助间隔件（8b），主间隔件附接到管部件。连接板，水杆，主间隔件和手柄装置形成承载燃料棒重量的支撑结构，辅助间隔件定位在相应水杆的实心部分。

9. 发明授权

EP0720765B1 BRENNELEMENT MIT VERKÜRZTEM TRAGENDEN KÜHLMITTELROHR 失效
标题翻译：燃料元件与缩短支冷却管
公开(公告)号：EP0720765B1
公开(公告)日：1997-11-19
申请号：EP94926773.6
申请日：1994-09-13
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： MEIER, Werner
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2002/207 , G21Y2004/302 , Y02E30/38
摘要： In a boiling-water fuel element with a central coolant pipe (WR) as the backbone of the bearing frame, upper end section (WE) of the coolant pipe (WR) becomes a relatively slim linking stud (4) engaging through an aperture in the upper rod holder (1) and secured there. Thus the upper end section (WE) lies at the upper edge of the active zone (AZ) and the coolant outlets of the coolant pipe (WR) take the form of passages (8) which are axial or run inwards to the linking stud. This provides good flow conditions, especially low pressure losses, in the upper part of the fuel element.

10. 发明授权

EP0557039B1 Two compartment water rod for boiling water reactors 失效
标题翻译：双水棒沸水反应堆
公开(公告)号：EP0557039B1
公开(公告)日：1996-10-16
申请号：EP93301076.1
申请日：1993-02-15
申请人： GENERAL ELECTRIC COMPANY
发明人： Matzner, Bruce , Wolters, Richard Arthur
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38

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