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1. 发明专利

JP2007232533A Steam separator and boiling water reactor 审中-公开
标题翻译：蒸汽分离器和沸腾水反应器
公开(公告)号：JP2007232533A
公开(公告)日：2007-09-13
申请号：JP2006053727
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： CHAGI MASAO , MURASE MICHIO , ISHIDA NAOYUKI , TAKAHASHI SHIRO , TSUBAKI MASAAKI
IPC分类号： G21C15/16 , G21C15/243
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To provide a simple structure capable of suppressing oscillation produced in a stand pipe of a steam separator and reduce work load on a shroud head.
SOLUTION: A strip-like oscillation reinforcement plate 12p is fixed on the side face of a standpipe 12b of the steam separator 12. The oscillation reinforcement plate 12p has one end spaced apart from the top end of the standpipe 12b and the other end spaced apart from the bottom end of the standpipe 12b, and is fixed along the generating line of the standpipe 12b. Three oscillation reinforcement plates 12p are arranged at an interval of approximately 120 degrees on the generating line of the standpipe 12b.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种简单的结构，其能够抑制在蒸汽分离器的立管上产生的振荡并减少护罩头上的工作负荷。解决方案：条形振荡加强板12p固定在蒸汽分离器12的立管12b的侧面上。振荡加强板12p的一端与竖管12b的顶端间隔开，另一端与立管12b的顶端间隔开端部与竖管12b的底端间隔开，并且沿着立管12b的生成线固定。在立管12b的生成线上以大约120度的间隔布置三个振动加强板12p。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007232442A Natural circulation boiling water reactor 审中-公开
标题翻译：自然循环锅炉水反应堆
公开(公告)号：JP2007232442A
公开(公告)日：2007-09-13
申请号：JP2006051923
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI SHIRO , OTSUKA MASAYA , TSUBAKI MASAAKI , HIROKAWA FUMIHITO , ISHII YOSHIHIKO
IPC分类号： G21C17/02 , G21C15/26
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To efficiently grasp flow characteristics such as void ratios, flow induced vibration and flow rate in a chimney of a natural circulation boiling water reactor.
SOLUTION: The natural circulation boiling water reactor comprises: a first pressure transmitting path 19 transmitting a pressure through a measurement hole 2a disposed in an open end of a chimney lattice channel 12 or an upper plenum 13; a second pressure transmitting path 19 transmitting pressure from a measurement hole 2c disposed in an arbitrary position of an upper lattice plate 10 channel or a lattice channel 12 or a measurement hole 2b in the bottom end of the chimney; and a differential pressure detection device 3 for detecting differential pressure.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：有效地掌握自然循环沸水反应器的烟囱中的流动特性，例如空隙率，流动引起的振动和流速。自然循环沸水反应器包括：第一压力传递路径19，其传递压力通过设置在烟囱格子通道12或上部通风室13的开口端的测量孔2a; 第二压力传递路径19，其传递来自设置在烟囱底部的上格子板10通道的任意位置的测量孔2c或格子通道12或测量孔2b的压力; 以及用于检测差压的差压检测装置3。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2007232430A Monitoring method of boiling water reactor and its monitoring program 有权
标题翻译：锅炉水反应器监测方法及监测方案
公开(公告)号：JP2007232430A
公开(公告)日：2007-09-13
申请号：JP2006051765
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OTSUKA MASAYA , FUJIMOTO KIYOSHI , TSUBAKI MASAAKI
IPC分类号： G21C17/00 , G21C17/02
CPC分类号： Y02E30/31 , Y02E30/39
摘要： PROBLEM TO BE SOLVED: To provide a monitoring method of a boiling water reactor not damaging a steam drier or the like in a reactor pressure vessel by pressure vibration following acoustic resonance generated in a main steam system. SOLUTION: In this boiling water reactor, a resonance frequency and a sound pressure distribution in the system are determined by acoustic analysis in the main steam system by paying attention to the fact that a main cause of the pressure vibration in the main steam system is the acoustic resonance, and an analysis result of the resonance frequency and a sound pressure is compared with an actual machine fluctuation pressure measurement result, and an analysis condition is determined so that both results agree best with each other. An exciting force applied to the steam drier (drier) is evaluated by the analysis condition agreeing with the actual machine fluctuation pressure measurement result. A restriction value of the sound pressure wherein a fatigue damage is not generated is determined by fatigue evaluation, and a fluctuation pressure of the actual machine is monitored by using the restriction value of the sound pressure. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供在主蒸汽系统中产生的声共振之后通过压力振动在反应堆压力容器中不破坏蒸汽干燥器等的沸水反应器的监测方法。解决方案：在这种沸水反应器中，通过主蒸汽系统中的声学分析来确定系统中的共振频率和声压分布，注意主蒸汽中压力振动的主要原因系统是声共振，并将共振频率和声压的分析结果与实际机器波动压力测量结果进行比较，并且确定分析条件，使得两个结果彼此最佳一致。通过与实际机器波动压力测量结果一致的分析条件评估施加到蒸汽干燥器（干燥器）的激励力。通过疲劳评估来确定不产生疲劳损伤的声压的限制值，并且通过使用声压的限制值来监视实际机器的波动压力。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007017244A Steam dryer of boiling water reactor 审中-公开
标题翻译：锅炉水反应堆蒸汽干燥机
公开(公告)号：JP2007017244A
公开(公告)日：2007-01-25
申请号：JP2005198209
申请日：2005-07-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIZAWA KOJI , TSUBAKI MASAAKI
IPC分类号： G21C15/16
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To raise the rigidity of a section of a steam dryer of a boiling water reactor on which a vibration load caused by fluid vibration is applied.
SOLUTION: A support plate 24 is interposed between a corrugated plate 9 and a corrugated plate 9 in the center section of a steam dryer unit 12 and welded to a top plate 18 and a unit support 19. The side face of the support plate 24 located on the steam passage side is corrugated in the same way as the liquid droplet collection plate 15 welded to the corrugated plate 9 adjacent to the support plate 24 to secure a steam passage on the side face of the support plate 24. The steam inflow width reduced by the thickness of the support plate 24 can be compensated by forming corrugations on the side plate 14 between the side plate 14 and the corrugated plate 9 in the same way as on the liquid droplet collection plate 15. A vibration having nodes on the side plates 14 on both sides and a hood support 20 is further provided with a node by adding the support plate 24 in the approximately center part to raise rigidity against the vibration.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提高施加了由流体振动引起的振动负荷的沸水反应堆的蒸汽干燥器的一部分的刚度。解决方案：支撑板24插入在蒸汽干燥器单元12的中心部分中的波纹板9和波纹板9之间，并焊接到顶板18和单元支撑件19.支撑件的侧面位于蒸汽通道侧的板24与以与支撑板24相邻的波纹板9焊接的液滴收集板15相同的方式被波纹化，以将支撑板24的侧面上的蒸汽通道固定。蒸汽通过以与液滴收集板15相同的方式在侧板14和波纹板9之间的侧板14上形成波纹来补偿通过支撑板24的厚度减小的流入宽度。具有节点的振动两侧的侧板14和发动机罩支撑件20还通过将支撑板24添加到大致中心部分中来提供节点，以提高抵抗振动的刚性。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006138799A Nuclear reactor 审中-公开
标题翻译：核反应堆
公开(公告)号：JP2006138799A
公开(公告)日：2006-06-01
申请号：JP2004330437
申请日：2004-11-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUBAKI MASAAKI
IPC分类号： G21C15/02 , G21C3/322 , G21C5/06 , G21C7/14 , G21C7/16
CPC分类号： Y02E30/38 , Y02E30/39
摘要： PROBLEM TO BE SOLVED: To provide a nuclear reactor facilitating as-designed setting of an orifice.
SOLUTION: In the nuclear reactor, orifices 7 and 8 are provided by directly providing openings 7 and 8 on at least one of a fuel support metal fitting 3 and a control rod guide tube 2. According to this structure, the formation of two or more kinds of exclusive orifices and orifice mount seats matched thereto is dispensed with, and the orifices 7 and 8 can be easily set as designed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种便于设计孔的设计的核反应堆。解决方案：在核反应堆中，通过在燃料支撑金属配件3和控制棒导管2中的至少一个上直接提供开口7和8来提供孔口7和8。根据该结构，省略了与其相配的两种或更多种专用孔和孔安装座，并且孔7和8可以容易地按照设计设置。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004205302A Steam dryer 有权
公开(公告)号：JP2004205302A
公开(公告)日：2004-07-22
申请号：JP2002373392
申请日：2002-12-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ASAKURA HIROAKI , KINOSHITA HIROBUMI , TSUBAKI MASAAKI , TAMAKO HIROAKI
IPC分类号： G21C15/16
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To curb the enlargement of the size of a steam dryer and restrain droplets from rescattering as the flow speed of steam accelerates.
SOLUTION: The steam dryer adopts a structure where the downstream side is wider than the upstream one in the width of a steam flow channel 27 by relatively lessening the share made up by the width sizes 21a to 21h of the steam flow channel 27 between steam flow channel forming members 6 included in the steam dryer to the intervals between the steam flow channel forming members 6 of a moisture removal mechanism 7 on the downstream side in comparison with the upstream side. Consequently, the dryer can adopt a structure where the width of the steam flow channel 27 is gradually enlarged along the flow channel of it after the intervals between respective corrugated plates 32 of each steam flow channel forming member are held constant from upstream to downstream. Since the width of the flow channel is enlarged downstream from the steam flow channel 27 between the steam flow channel forming members 6 of the steam dryer to make the flow speed of the steam slower downstream than upstream and the dryer can be equipped with the moisture removal mechanism 7 required by the whole flow channels, the restraint on the rescattering of the droplets involved in the acceleration of the flow speed of the steam can be achieved while the upsizing of the steam dryer is curbed.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2007232440A Boiling water reactor, and acoustic vibration suppression method in boiling water reactor 有权
标题翻译：锅炉水反应器锅炉水反应器的振动抑制方法
公开(公告)号：JP2007232440A
公开(公告)日：2007-09-13
申请号：JP2006051910
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OTSUKA MASAYA , FUJIMOTO KIYOSHI , TSUBAKI MASAAKI
IPC分类号： G21D3/00 , G21C17/02 , G21D3/08
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a boiling water reactor free from damaging a steam drier or the like in a reactor pressure vessel by suppressing effectively pressure vibration generated in a main steam system without reducing reactor heat output. SOLUTION: Pressure sensors 17, 18 always detect a fluctuating pressure following acoustic resonance generated inside a steam dome 7 and a steam pipe 8. A monitoring/control device 19 controls a bleeding amount supplied from a high-pressure turbine 9 to a feed water heater 13 by controlling opening of a bleeding valve 14, based on the level of the fluctuating pressure detected by the pressure sensors 17, 18, and controls fission energy from an uranium fuel in a core shroud 2 by controlling control rods 16 through a control rod driving device 15. Hereby, since the steam quantity generated in the reactor pressure vessel 1 is decreased, a steam flow passing the main steam system is reduced and the pressure vibration based on the acoustic resonance is suppressed. Since the enthalpy difference between feed water 3 and steam 4 in the input/output of the reactor pressure vessel 1 is increased, the reactor heat output is maintained constant. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过在有效地抑制主蒸汽系统中产生的压力振动而不减少反应堆热量输出的同时，提供一种在反应堆压力容器内不会损坏蒸汽干燥器等的沸水反应器。解决方案：压力传感器17,18总是检测在蒸汽穹顶7和蒸汽管8内产生的声共振之后的波动压力。监视/控制装置19控制从高压涡轮9供应到基于由压力传感器17,18检测到的波动压力的水平，通过控制排出阀14的打开来控制进料热水器13，并通过控制控制棒16控制核心护罩2中的铀燃料的裂变能量因此，由于在反应堆压力容器1中产生的蒸汽量减少，所以通过主蒸汽系统的蒸汽流减少，并且基于声共振的压力振动被抑制。由于反应堆压力容器1的输入/输出中的给水3和蒸汽4之间的焓差增加，反应堆的热量输出保持恒定。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2007232421A Natural circulation type boiling water reactor and its handling method 有权
标题翻译：自然循环型锅炉水反应器及其处理方法
公开(公告)号：JP2007232421A
公开(公告)日：2007-09-13
申请号：JP2006051501
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE ATSUSHI , WADA YOICHI , NAGASE MAKOTO , ISHIDA KAZUNARI , HOSOKAWA HIDEYUKI , HIROKAWA FUMIHITO , TSUBAKI MASAAKI , TAKAHASHI SHIRO
IPC分类号： G21C5/00 , G21C15/02
CPC分类号： G21C1/084 , G21C15/00 , G21Y2002/402 , G21Y2004/30 , Y02E30/31
摘要： PROBLEM TO BE SOLVED: To provide a natural circulation type boiling water reactor equipped with a chimney easily dismountable from a reactor pressure vessel, capable of reducing welded zones compared with the chimney of a conventional natural circulation type boiling water reactor.
SOLUTION: In this natural circulation type boiling water reactor 1, a plurality of square tubes 11b constitute the chimney 11. Namely, each of the plurality of square tubes 11b partitions each passage of a coolant over the core. Therefore, in the chimney 11 of the natural circulation type boiling water reactor 1, welded zones can be reduced, because each edge of four corners is not required to be welded in each passage, differently from the case wherein a coolant passage is partitioned by a plate material welded integrally such as a grid-like passage bulkhead in the conventional natural circulation type boiling water reactor.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有烟囱的自然循环型沸水反应器，该反应堆容易从反应堆压力容器中拆卸，与传统的自然循环型沸水反应器的烟囱相比，能够减少焊接区域。解决方案：在这种自然循环型沸水反应器1中，多个方管11b构成烟囱11.即，多个方管11b中的每一个分别在芯上通过冷却剂。因此，在自然循环式沸水堆1的烟囱11中，由于在每个通路中不需要焊接四个角的每个边缘，所以可以减少焊接区域，其中冷却剂通道被在常规的自然循环型沸水反应堆中整体焊接如栅格状通道隔板的板材。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006153869A Boiling water reactor and its acoustic vibration suppression method 有权
标题翻译：锅炉水反应器及其振动抑制方法
公开(公告)号：JP2006153869A
公开(公告)日：2006-06-15
申请号：JP2005320566
申请日：2005-11-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OTSUKA MASAYA , AOYAMA TADAO , SHIINA KOJI , CHAGI MASAO , KITO KAZUAKI , TAKAHASHI SHIRO , FUJIMOTO KIYOSHI , TSUBAKI MASAAKI
IPC分类号： G21D3/08 , F01D25/00
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To suppress pressure vibration accompanying acoustic resonance occurring in a main steam system of a boiling water reactor.
SOLUTION: Pressure sensors 13 and 14 are disposed in a steam dome 6 and a steam pipe 9, and pressure vibration amplitude is detected. The steam dome 6 or steam pipe 9 is provided with a Helmholtz resonance tube 12, and an opening regulating valve 11 is mounted to an inlet pipe 121. The opening of the opening regulating valve 11 is regulated in the direction of decreasing the detected pressure vibration amplitude. Thus, when the detected pressure vibration amplitude becomes minimum, the resonance frequency of the Helmholtz resonance tube 12 matches with (is close to) resonance vibration frequency of the steam system, and can effectively suppress the pressure vibration due to the acoustic resonance.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：抑制在沸水反应堆的主蒸汽系统中发生的伴随声共振的压力振动。解决方案：压力传感器13和14设置在蒸汽穹顶6和蒸汽管9中，并且检测压力振动振幅。蒸汽穹顶6或蒸汽管9设置有亥姆霍兹共振管12，并且开口调节阀11安装在入口管121上。打开调节阀11的开口沿减小检测到的压力振动的方向振幅。因此，当检测到的压力振动振幅变得最小时，亥姆霍兹共振管12的共振频率与蒸汽系统的（接近）共振振动频率相匹配，并且可以有效地抑制由于声共振引起的压力振动。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004245658A Nuclear reactor with built-in primary cooling water circulation pump 审中-公开
公开(公告)号：JP2004245658A
公开(公告)日：2004-09-02
申请号：JP2003034494
申请日：2003-02-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YASUDA KENICHI , SONEDA HIDEO , MATSUURA MASAYOSHI , TSUBAKI MASAAKI
IPC分类号： G21C15/02 , G21C15/243
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To uniformize the flow of cooling water in a plenum under a nuclear reactor and change discharged flow from a leg opening part to flow along the bottom of a nuclear reactor pressure vessel in the nuclear reactor.
SOLUTION: This nuclear reactor comprises a shroud support 13 in the nuclear reactor pressure vessel 1, a plurality of primary cooling water circulation pumps 2 distributedly disposed in the circumferential direction on the outer periphery of the shroud support 13, a plurality of shroud support legs 14, the large number of which more than that of the primary cooling water circulation pumps 2 is disposed so as to support the shroud support 13 on the nuclear reactor pressure vessel 1 at a position out of a line connecting the centers of the primary cooling water circulation pumps to the center of the shroud support 13 and only one of which is disposed at the position of the center of a disposition angle at least between the primary cooling water circulation pumps 2 adjacent to each other, and a plurality of leg openings formed between the shroud support legs 14.
COPYRIGHT: (C)2004,JPO&NCIPI

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