专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

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. 发明授权

EP0458086B2 Nuclear fuel rod bundle 失效
标题翻译：管束核反应堆
公开(公告)号：EP0458086B2
公开(公告)日：1999-02-03
申请号：EP91106794.0
申请日：1991-04-26
申请人： GENERAL ELECTRIC COMPANY
发明人： Elkins, Robert Bruce
IPC分类号： G21C3/322 , G21C3/328 , G21C3/33
CPC分类号： G21C3/322 , G21C3/328 , G21C3/33 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , Y02E30/31 , Y02E30/38

9. 发明授权

EP0561589B1 Fuel bundle for boiling water nuclear reactors with at least one top filled water enclosed region overlying part length fuel rods 失效
标题翻译：核燃料束为Siedewasserkernreaktoren从上方载水空间，其位于上述部分长度燃料棒的至少一个进料。
公开(公告)号：EP0561589B1
公开(公告)日：1996-11-13
申请号：EP93301941.6
申请日：1993-03-15
申请人： GENERAL ELECTRIC COMPANY
发明人： Dix, Gary Errol , Matzner, Bruce
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21C2003/3225 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , Y02E30/31 , Y02E30/38

10. 发明公开

EP0516307A1 Non circular water rod features 失效
标题翻译： Nicht rundes Wasserrohrfüreinen Kernreaktor。
公开(公告)号：EP0516307A1
公开(公告)日：1992-12-02
申请号：EP92304240.2
申请日：1992-05-12
申请人： GENERAL ELECTRIC COMPANY
发明人： Johansson, Eric Bertil
IPC分类号： G21C3/332 , G21C3/322
CPC分类号： G21C3/322 , G21C3/332 , G21C2003/3225 , G21Y2002/201 , G21Y2002/302 , G21Y2004/305 , Y02E30/38
摘要： A fuel bundle and fuel bundle assembly sequence utilizing a peanut sectioned large water rod is shown locking spacers into place along the axial length of the water rod. In a first embodiment, clearance is defined relative to tabs welded on the large water rod so that spacer assembly to the water rods can occur. In a second and preferred embodiment, spacers are individually equipped with springs locking into complimentary apertures in the peanut sectioned water rod. In both embodiments, the spacers are threaded onto the peanut sectioned water rod and locked into alignment for the receipt of the fuel rods. An improved suspension of the water rod relative to the lower tie plate is disclosed in which a transition piece connects the large water rod to a flexible rod which is threaded at its lower end. This rod is screwed into a threaded aperture in the lower tie plate. Connection of the water rod to the upper tie plate does not occur with the result that assembly is simplified and total fuel bundle part count reduced.
摘要翻译：使用花生切片的大水杆的燃料束和燃料束组件序列示出了沿着水杆的轴向长度的锁定垫片。在第一实施例中，相对于焊接在大水杆上的突出部限定间隙，使得可能发生到水杆的间隔件组件。在第二和优选实施例中，间隔件分别配备有弹簧锁定在花生切片水杆中的互补孔中。在两个实施例中，间隔件被螺纹连接到花生切片水杆上并被锁定成对准以便接收燃料棒。公开了水杆相对于下连接板的改进的悬架，其中过渡件将大水杆连接到在其下端螺纹的柔性杆。该杆被拧入下连接板中的螺纹孔中。水杆与上连接板的连接不会发生，从而简化组装，并减少总燃料束部件数量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式