专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US5180546A Boiling water reactor with downcomer steam release channel 失效
标题翻译：具有降液管蒸汽排放通道的沸水反应堆
公开(公告)号：US5180546A
公开(公告)日：1993-01-19
申请号：US777465
申请日：1991-10-17
申请人： Rudolf M. Van Kuijk
发明人： Rudolf M. Van Kuijk
IPC分类号： G21C1/08 , G21C15/16
CPC分类号： G21C15/16 , G21C1/084 , Y02E30/31
摘要： A natural circulation boiling water reactor system using free-surface steam separation incorporates a series of tubes near the inner wall of its reaction vessel extending from a downcomer to well-above the downcomer. These tubes allow steam bubbles which would otherwise be trapped within the downcomer to escape from the recirculating water toward the steam exit of the vessel. This lowers the volume of steam in the downcomer, lowering the water velocity required to maintain a given volume of water recirculation. The reduced water velocity results in less carryunder which results in smaller voids in the reactor core. The smaller voids provide longer fuel burnups and enhance reactor stability.
摘要翻译：使用自由表面蒸汽分离的自然循环沸水反应堆系统在其反应容器的内壁附近包含一系列管，其从降液管延伸到井下方。这些管子允许蒸汽气泡，否则这些蒸汽气泡将被捕获在降液管内，以便从再循环水向容器的蒸汽出口逸出。这降低了降液管中的蒸汽体积，降低了维持给定体积的水循环所需的水速。减少的水流速度导致更少的结果，这导致反应堆堆芯中的较小的空隙。较小的空隙提供更长的燃料燃耗并增强反应堆的稳定性。

52. 发明授权

US5124115A BWR series pump recirculation system 失效
标题翻译： BWR系列泵回收系统
公开(公告)号：US5124115A
公开(公告)日：1992-06-23
申请号：US667799
申请日：1991-03-11
申请人： Charles W. Dillmann
发明人： Charles W. Dillmann
IPC分类号： F04D7/08 , F04D9/06 , F04D13/04 , F04D13/12 , F04D15/00 , F04D29/04 , F04D29/047 , F04D29/42 , F04D29/44 , F04D29/66 , G21C1/08 , G21C1/28 , G21C5/02 , G21C15/24 , G21C15/243
CPC分类号： F04D29/047 , F04D13/043 , F04D13/12 , F04D15/0005 , F04D29/426 , F04D29/448 , F04D29/669 , F04D7/08 , F04D9/06 , G21C1/084 , G21C15/24 , G21C15/243 , G21C1/28 , G21C5/02 , G21Y2002/201 , G21Y2002/601 , G21Y2004/40 , Y02E30/31
摘要： A recirculation system is disclosed for driving reactor coolant water contained in an annular downcomer defined between a reactor vessel and a reactor core spaced radially inwardly therefrom. The system includes a plurality of circumferentially spaced pumps disposed in the downcomer, each pump including an inlet for receiving coolant water from the downcomer as pump inlet flow, and an outlet for discharging the pressurized water. The recirculation system firstly increases the pressure of the pump inlet flow at the pump inlet before being sucked into the pump for being further pressurized by the pump.
摘要翻译：公开了一种用于驱动反应堆冷却水的再循环系统，该反应堆冷却水包含在反应堆容器与其径向向内间隔开的反应堆核心之间的环形降液管中。该系统包括设置在降液管中的多个周向间隔开的泵，每个泵包括用于从作为泵入口流动的下降管接收冷却水的入口和用于排出加压水的出口。循环系统首先在泵入口之前增加泵入口处的泵入口的压力，以便被泵进一步加压。

53. 发明授权

US5120494A Reactor-core isolation cooling system with dedicated generator 失效
标题翻译：具有专用发电机的反应器芯分离冷却系统
公开(公告)号：US5120494A
公开(公告)日：1992-06-09
申请号：US709456
申请日：1991-06-03
申请人： Edgardo V. Nazareno , Charles W. Dillmann
发明人： Edgardo V. Nazareno , Charles W. Dillmann
IPC分类号： G21C9/00 , F04D7/08 , F04D13/04 , F04D15/00 , F04D29/04 , F04D29/047 , F04D29/42 , F04D29/44 , G21C1/08 , G21C1/28 , G21C5/02 , G21C15/18 , G21C15/24 , G21C15/243 , G21D3/04
CPC分类号： F04D29/047 , F04D13/043 , F04D15/0005 , F04D29/426 , F04D29/448 , F04D7/08 , G21C1/084 , G21C15/18 , G21C15/24 , G21C15/243 , G21C1/28 , G21C5/02 , G21Y2002/201 , G21Y2002/601 , G21Y2004/40 , Y02E30/31
摘要： A boiling water nuclear water plant includes a reactor core isolation cooling (RCIC) system in which a turbine used to pump feedwater to the reactor also drives a generator. The generator is used to drive RCIC components, such as a room cooler and control electronics, during station blackout.
摘要翻译：沸水核水厂包括反应堆堆芯隔离冷却（RCIC）系统，其中用于将给水泵送到反应器的涡轮机也驱动发电机。发电机用于在车站停电期间驱动RCIC组件，如室内冷却器和控制电子设备。

54. 发明授权

US5019328A Natural circulation type boiling light-water reactor 失效
标题翻译：自然循环型沸水轻水反应堆
公开(公告)号：US5019328A
公开(公告)日：1991-05-28
申请号：US330318
申请日：1989-03-29
申请人： Tsuyoshi Niino , Tadakazu Nakayama , Ryozo Tsuruoka , Minoru Miki , Nobukatsu Iwata , Kazuhito Koyama
发明人： Tsuyoshi Niino , Tadakazu Nakayama , Ryozo Tsuruoka , Minoru Miki , Nobukatsu Iwata , Kazuhito Koyama
IPC分类号： G21C1/08 , G21C15/02 , G21C15/12 , G21C15/16 , G21C15/26
CPC分类号： G21C1/084 , Y02E30/31
摘要： A natural circulation type boiling light-water reactor comprises a pressure vessel, a reactor core disposed within said pressure vessel to heat light water so as to generate main steam, a steam outlet provided in a wall of said pressure vessel for drawing out the main steam therethrough to supply the same to a turbine system, and a steam path along which the main steam flows from the reactor core to the steam outlet. The reactor further comprises a steam guide for prolonging the steam path and/or a radially increased chimney for reducing the velocity of the main steam flowing through the steam path. These causes radioactive isotope .sup.16 N contained in the main steam to flow within the pressure vessel for a time period exceeding its own half-life, so that the inventory of .sup.16 N in the main steam directed towards the turbine system is reduced remarkably. In consequence, shield structures for piping and turbine systems can be reduced in size and weight.
摘要翻译：一种自然循环式沸腾轻水反应器包括压力容器，设置在所述压力容器内的反应堆堆芯，以加热轻水以产生主蒸汽;设置在所述压力容器的壁中的蒸汽出口，用于抽出主蒸汽从而将其提供给涡轮机系统，以及蒸汽通道，主蒸汽沿着蒸汽路径从反应堆堆芯流到蒸汽出口。反应器还包括用于延长蒸汽通道的蒸汽引导件和/或径向增加的烟囱，用于降低流经蒸汽通道的主蒸汽的速度。这些原因使得主蒸汽中所含的放射性同位素16N在压力容器内流动超过其自身的半衰期，使得主蒸汽中导向涡轮机系统的16N的清单明显减少。因此，可以减小管道和涡轮机系统的屏蔽结构的尺寸和重量。

55. 发明授权

US4871508A Method for operation of a light water boiling reactor 失效
标题翻译：轻水沸腾反应器的操作方法
公开(公告)号：US4871508A
公开(公告)日：1989-10-03
申请号：US126504
申请日：1987-11-30
申请人： Johann Lindner
发明人： Johann Lindner
IPC分类号： G21C7/00 , G21C1/08 , G21C5/00
CPC分类号： G21C5/00 , G21C1/084 , Y02E30/31
摘要： A core of a light water boiling reactor comprises a plurality of vertical fuel assemblies (10) and a plurality of control rods, each control rod comprising four vertical blades arranged in a cruciform. The control rods are arranged with each one of their blades between two fuel assemblies located in the same row, such that each control rod together with four fuel assemblies arranged around the blades of the control rod form a unit, the control rod unit (30, 30-o), having an at least substantially square cross-section. The control rod units are arranged in a symmetrical lattice with each control rod unit included in two rows of control rod units perpendicular to each other. After a period of operation of the reactor, when exchanging fuel rods which are present in the reactor at the time of exchange and have been used during the operating period, for new control rods, there are arranged in some control rod units (dark squares) control rods with a reactivity worth which is higher than the original reactivity worth of the control rods which have been used, whereas in other control rod units (light squares) there are used control rods which have been used in the reactor during the operating period (FIG. 2).
摘要翻译：轻水沸腾反应堆的核心包括多个垂直燃料组件（10）和多个控制杆，每个控制杆包括布置在十字形中的四个垂直叶片。控制杆布置成它们的每个叶片位于同一排中的两个燃料组件之间，使得每个控制杆与设置在控制杆的叶片周围的四个燃料组件一起形成一个单元， 30-o），具有至少基本正方形的横截面。控制杆单元布置成对称的格子，每个控制杆单元包括在彼此垂直的两排控制杆单元中。在反应堆运行一段时间之后，在更换时在反应器中存在并且在运行期间被使用的燃料棒，当用于新的控制棒时，布置有一些控制棒单元（黑色方块）控制棒的反应性值高于已经使用的控制棒的原始反应性值，而在其他控制棒单元（光正方形）中，使用在操作期间已经在反应器中使用的控制棒图2）。

56. 发明授权

US4810460A Nuclear boiling water reactor upper plenum with lateral throughpipes 失效
标题翻译：核沸水反应堆上部通风室带横向通风管
公开(公告)号：US4810460A
公开(公告)日：1989-03-07
申请号：US158979
申请日：1988-02-22
申请人： Douglas M. Gluntz
发明人： Douglas M. Gluntz
IPC分类号： G21C1/08 , G21C15/02 , G21C15/18
CPC分类号： G21C1/084 , G21C15/18 , G21C1/086 , G21Y2002/30 , G21Y2004/304 , Y02E30/31
摘要： In a boiling water reactor of the type having a reactor core for heating feedwater to generate a two-phase steam/water mixture and a core shroud head overlying the reactor core and defining a core upper plenum region, a plurality of conduits disposed in the upper plenum region to provide supplemental water coolant. Each conduit has at least one open end located in the primary water coolant and a conduit body that extends laterally from the open end through the core shroud head and into the plenum region. Each conduit is closed with respect to the plenum region and is filled with primary water coolant during normal operation of the reactor to provide supplemental water coolant. The supplemental water coolant drains into the reactor pressure vessel when the primary coolant level falls below the open end to cool the reactor core during a loss-of-coolant accident. In one embodiment the conduit comprises a plurality of pipes, each extending laterally from the primary water collant through the core shroud head and into the core upper plenum region. The conduit may also have a grid or array configuration to enhance mixing of the two-phase mixture in the plenum region. The invention increases the total water coolant inventory present in the reactor vessel at the occurrence of a loss-of-coolant accident by displacing some of the contents of the plenum region by the supplemental coolant.

57. 发明授权

US4246068A Boiling reactor with direct feed water input to the fuel boxes 失效
标题翻译：沸腾反应堆，直接进料水输入燃油箱
公开(公告)号：US4246068A
公开(公告)日：1981-01-20
申请号：US906507
申请日：1978-05-16
申请人： Johann Lindner , Olov Nylund
发明人： Johann Lindner , Olov Nylund
IPC分类号： G21C15/16 , G21C1/08 , G21C7/08 , G21C15/18 , G21C19/28
CPC分类号： G21C7/08 , G21C1/084 , G21Y2002/201 , G21Y2004/302 , Y02E30/31 , Y02E30/39
摘要： Boiling reactor comprising a reactor vessel and a moderator tank arranged therein which surrounds a reactor core with a plurality of vertically arranged fuel boxes. A moderator tank space located below the reactor core is provided with inlet openings for cooling water streaming through the reactor core and is in direct hydraulic connection with the lower ends of the fuel boxes. The wall of the rector vessel is provided with an opening for the supply of a first feed water flow to the cooling water flowing into the lower end of the reactor core, with the upper ends of the fuel boxes being arranged in hydraulic connection with a plurality of riser tubes by the aid of which a steam and water mixture flowing out from the fuel boxes is conducted to a plurality of water separators.
摘要翻译：沸腾反应器包括反应器容器和其中布置的缓和罐，其围绕具有多个垂直布置的燃料箱的反应堆堆芯。设置在反应堆芯下方的调节罐空间设置有用于冷却水通过反应堆堆芯流动的入口，并且与燃料箱的下端直接液压连接。反射器容器的壁上设有一个开口，用于向流入反应堆芯的下端的冷却水供应第一给水流，燃料箱的上端与多个借助于这些提升管，从燃料箱流出的蒸汽和水混合物被引导到多个水分离器。

58. 发明授权

US2949414A Self-regulating boiling-water nuclear reactors 失效
标题翻译：自调沸水核反应堆
公开(公告)号：US2949414A
公开(公告)日：1960-08-16
申请号：US77479458
申请日：1958-11-18
申请人： RANSOHOFF JACKSON A , PLAWCHAN JOHN D
发明人： RANSOHOFF JACKSON A , PLAWCHAN JOHN D
IPC分类号： G21C1/08 , G21C3/36 , G21C7/113 , G21C7/28
CPC分类号： G21C7/28 , G21C1/084 , G21C3/36 , G21C7/113 , G21Y2002/205 , G21Y2004/402 , Y02E30/31 , Y02E30/39

59. 发明授权

US801696A Water-tube boiler. 失效
公开(公告)号：US801696A
公开(公告)日：1905-10-10
申请号：US1905240458
申请日：1905-01-10
申请人： URIE WILLIAM T
发明人： URIE WILLIAM T
CPC分类号： G21C1/084 , C10G9/20

60. 发明授权

US796265A Steam-boiler. 失效
公开(公告)号：US796265A
公开(公告)日：1905-08-01
申请号：US1904236957
申请日：1904-12-15
申请人： STURM CHARLES ANDREW
发明人： STURM CHARLES ANDREW
CPC分类号： G21C1/084 , C10G9/20

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