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1. 发明申请

US20040136489A1 Nuclear reactor containment vessel 审中-公开
标题翻译：核反应堆安全壳
公开(公告)号：US20040136489A1
公开(公告)日：2004-07-15
申请号：US10625844
申请日：2003-07-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Munetaka Takahashi
IPC分类号： G21C009/00
CPC分类号： G21C13/00 , G21C9/00 , Y02E30/31
摘要： A reactor containment vessel of a boiling water reactor configured to contain a reactor pressure vessel. The reactor pressure vessel is connected to at least one main steam pipe which penetrates the reactor containment vessel at a main-steam-line penetration point. The main-steam-line penetration point is disposed on a first side of the reactor containment vessel. Distance between outer surface of the reactor pressure vessel and inner surface of the reactor containment vessel on the first side is longer than the distance on a second side which is opposite to the first side.
摘要翻译：沸水反应器的反应堆容器，其构造成容纳反应堆压力容器。反应堆压力容器连接至至少一个主蒸汽管道，该蒸汽管道以主蒸汽管线穿透点穿透反应堆容纳容器。主蒸汽管线穿透点设置在反应堆容纳容器的第一侧。反应堆压力容器的外表面和第一侧的反应堆容器的内表面之间的距离比第一侧相反的第二侧的距离长。

2. 发明申请

US20040037385A1 Condensate demineralization 有权
标题翻译：冷凝水脱矿质
公开(公告)号：US20040037385A1
公开(公告)日：2004-02-26
申请号：US10636370
申请日：2003-08-06
发明人： Tomoaki Ito , Makoto Fukami , Jumpei Fukawa
IPC分类号： G21C009/00
CPC分类号： C02F1/42 , B01J47/04 , G21F9/12
摘要： In a demineralization apparatus, a mixed bed of a gel type cation exchange resin having a moisture holding capacity of 41% or less or a degree of crosslinkage of 12% or greater is employed along with a porous type anion exchange resin. As a result, oxidation degradation of the cation exchange resin due to hydrogen peroxide can be inhibited and the performance of the ion exchange resins and of the condensate water demineralizer can be stabilized and maintained for a long period of time.
摘要翻译：在脱矿质装置中，与多孔型阴离子交换树脂一起使用水分保持能力为41％以下或交联度为12％以上的凝胶型阳离子交换树脂的混合床。结果，可以抑制由于过氧化氢引起的阳离子交换树脂的氧化降解，并且可以长时间稳定和维持离子交换树脂和冷凝水脱盐装置的性能。

3. 发明申请

US20030202627A1 REACTOR PRESSURE VESSEL AND PROCESS FOR TEMPERATURE EQUALIZATION IN A REACTOR PRESSURE VESSEL 失效
标题翻译：反应器压力容器和反应器压力容器中温度均衡的方法
公开(公告)号：US20030202627A1
公开(公告)日：2003-10-30
申请号：US09854656
申请日：2001-05-14
发明人： Heinz-Werner Hartmann , Jurgen Model
IPC分类号： G21C009/00
CPC分类号： G21C13/02 , G21C15/02 , G21Y2002/201 , G21Y2002/202 , G21Y2004/30 , G21Y2004/403 , Y02E30/40
摘要： A reactor pressure vessel with an upper support plate, in which an equalization opening is provided as a bypass is described. A process for temperature equalization between an upper dome chamber above a support plate and a lower chamber below it is described. It is proposed that the cross section of the equalization opening be variable as a function of the temperature, so that the flow of medium between the upper dome chamber and the lower chamber is varied as a function of the temperature.
摘要翻译：描述了具有上支撑板的反应堆压力容器，其中设置有作为旁路的均衡开口。描述了在支撑板上方的上穹顶室和其下方的下室之间的温度均衡的过程。提出均衡开口的横截面随着温度的变化而变化，使得上穹顶室和下室之间的介质流动随着温度的变化而变化。

4. 发明申请

US20020101951A1 Boiling water reactor nuclear power plant 审中-公开
标题翻译：沸水堆核电站
公开(公告)号：US20020101951A1
公开(公告)日：2002-08-01
申请号：US09978304
申请日：2001-10-17
发明人： Mikihide Nakamaru , Hideaki Heki , Takehiko Saito , Kouji Hiraiwa , Tadashi Narabayashi , Satoru Oomizu , Tsuyoshi Shimoda , Kenji Arai , Shinichi Morooka , Seijiro Suzuki
IPC分类号： G21C009/00
CPC分类号： G21C15/18 , G21C1/084 , G21C9/004 , Y02E30/31
摘要： The present invention provides a boiling water-type nuclear power plant comprising: a passive safety system having depressurization valves and a gravity driven core cooling system as an emergency core cooling system; a passive containment vessel cooling system in which reactor steam released in the containment vessel is cooled by a heat exchanger in a cooling water pool installed in the upper portion of the containment vessel; and a containment vessel flooding system which injects cooling water into a dry well of the containment vessel on an accident; wherein a containment vessel spray cooling system for injecting cooling water into the containment vessel via a pump is further added as a safety system. According to the above configuration, it becomes possible to achieve reliable depressurization by an active safety system of the containment vessel on the basis of a simplified passive safety system, and to depressurize the containment vessel and limit radioactive leakage over extended periods after an accident.
摘要翻译：本发明提供了一种沸水型核电站，包括：具有减压阀的无源安全系统和作为应急芯冷却系统的重力驱动核心冷却系统; 被动容纳容器冷却系统，其中在容纳容器中释放的反应器蒸汽由安装在安全壳上部的冷却水池中的热交换器冷却; 以及在事故中将冷却水注入安全壳的干井内的遏制船只淹水系统; 其特征在于，进一步添加用于将冷却水经由泵将冷却水喷射到所述容纳容器内的收容容器喷雾冷却系统作为安全系统。根据上述结构，能够以简化的被动安全系统为基础，通过安全壳的主动安全系统实现可靠的减压，并且能够在事故发生后的长时间内使密闭容器减压并限制放射性泄漏。

5. 发明申请

US20020080906A1 Noble metal catalysis for mitigation of corrosion, erosion and stress corrosion cracking in pressurized water reactor and related high temperature water environments 审中-公开
标题翻译：贵金属催化用于减轻压水反应堆和相关高温水环境中的腐蚀，侵蚀和应力腐蚀开裂
公开(公告)号：US20020080906A1
公开(公告)日：2002-06-27
申请号：US09742893
申请日：2000-12-21
发明人： Peter L. Andresen , Young Jin Kim , Robert L. Cowan II , Robert J. Law , Samson N. M. N. Hettiarachchi
IPC分类号： G21C009/00
CPC分类号： G21C17/0225 , C23F11/18 , G21C19/307
摘要： Method for controlling erosion and cracking in a metal component of a nuclear reactor, particularly in the highly concentrated primary and secondary systems of a PWR, comprising creating a catalytic surface on the component; and generating a stoichiometric excess of reductant the water of the reactor to reduce the oxidant concentration at the surface to substantially zero.
摘要翻译：用于控制核反应堆的金属组分中的侵蚀和裂化的方法，特别是在PWR的高度集中的一级和二级系统中，包括在所述组分上产生催化表面; 并产生化学计量过量的还原剂的反应器的水，以将表面处的氧化剂浓度降低至基本为零。

6. 发明申请

US20020021778A1 Method of operating nuclear power plant, nuclear power plant, and method of controlling water chemistry of nuclear power plant 失效
标题翻译：核电站运行方式，核电厂，核电厂水化学控制方法
公开(公告)号：US20020021778A1
公开(公告)日：2002-02-21
申请号：US09839368
申请日：2001-04-23
发明人： Yoshiyuki Takamori , Masanori Sakai , Yamato Asakura , Masato Nakamura , Hideyuki Hosokawa , Nagao Suzuki , Kouji Hayashi
IPC分类号： G21C009/00
CPC分类号： G21C19/28 , G21Y2002/103 , G21Y2002/201 , G21Y2002/207 , G21Y2002/40 , G21Y2004/10 , G21Y2004/20 , G21Y2004/40
摘要： In a nuclear power plant, by injecting an amount of hydrogen small enough not to increase a radiation dose rate of the main steam system, ECP of metallic component materials composing a nuclear reactor can be decreased to suppress the potential of occurrence of IGSCC, and the control can be easily performed, and the operating cost can be suppressed to increase. Occurrence of intergranular stress corrosion cracking in metallic component materials in contact with reactor cooling water is suppressed by injecting zirconium hydroxide and hydrogen into the reactor cooling water to decrease the electrochemical corrosion potential of the metallic component materials.
摘要翻译：在核电厂，通过注入足够小的氢量来增加主蒸汽系统的辐射剂量率，可以降低构成核反应堆的金属成分材料的ECP，以抑制IGSCC发生的可能性，能够容易地进行控制，能够抑制运转成本的上升。通过将氢氧化锆和氢气注入反应器冷却水中来抑制与反应器冷却水接触的金属组分材料中晶间应力腐蚀开裂的发生，以降低金属组分材料的电化学腐蚀电位。

7. 发明申请

US20020015462A1 BOILING WATER REACTOR AND OPERATION THEREOF 有权
标题翻译：锅炉水反应器及其运行
公开(公告)号：US20020015462A1
公开(公告)日：2002-02-07
申请号：US09376983
申请日：1999-08-19
发明人： KOUJI HIRAIWA
IPC分类号： G21C009/00
CPC分类号： G21C7/02 , G21C1/084 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/402 , G21Y2004/403 , Y02E30/31 , Y02E30/39
摘要： In a nuclear reactor, in-core stability is improved, power density is increased, and an economical natural-circulation reactor (or partial forced-circulation reactor) is achieved. The reactor core has a void reactivity coefficient between null0.07 and null0.03 % null k/k/% void fraction. This void reactivity coefficient range is achieved by, for example, the design of the by-pass portion and channel box, the enrichment distribution along the axial direction, the provision of blanket areas, and/or the arrangement of water rods and fuel rods within a channel box.
摘要翻译：在核反应堆中，内核稳定性提高，功率密度提高，实现了经济的自然循环反应器（或部分强制循环反应器）。反应堆芯的空穴反应性系数在-0.07和-0.03％之间，ΔTAk / k /％的空隙率。这种空隙反应性系数范围通过例如旁路部分和通道箱的设计，沿着轴向的浓缩分布，提供橡皮布区域和/或水杆和燃料棒的布置来实现一个通道盒。

8. 发明申请

US20020012414A1 Polymer dispersants and methods of use in a nuclear steam generator 有权
公开(公告)号：US20020012414A1
公开(公告)日：2002-01-31
申请号：US09810682
申请日：2001-03-16
申请人： Commonwealth Edison Company/BetzDearborn, Inc.
发明人： Phillip M. Egebrecht , Joseph D. Bates , John A. Kelly , James D. Haff , Ralph Minnis
IPC分类号： G21C009/00 , C08F020/56 , C08F120/56 , C08F220/56
CPC分类号： C08F220/00 , F22B37/483 , F22B37/486
摘要： A novel high-purity polymer dispersant and sludge conditioner added to the feedwater entering the secondary side of a nuclear steam generator for minimizing the accumulation of metal-oxide deposits within the nuclear steam generator during the continuing operation of the generator is disclosed. The high-purity polymer is selected from a group consisting of acrylic acid polymer, methacrylic acid polymer, acrylate polymer, methacrylate polymer, copolymers, and terpolymers, acrylate/acrylamide copolymer, acrylate/methacrylate copolymer, terpolymers, and mixtures thereof. Methods of making and applying the polymer dispersant and sludge conditioner are described. Means for removing the metal oxides and polymer from the blowdown stream are disclosed.

9. 发明申请

US20040196947A1 Reactor cooling system 审中-公开
标题翻译：反应堆冷却系统
公开(公告)号：US20040196947A1
公开(公告)日：2004-10-07
申请号：US10387372
申请日：2003-03-14
发明人： Toshimitsu Usui , Koji Ando , Masayoshi Matsuura
IPC分类号： G21C009/00
CPC分类号： G21C15/00 , G21C15/24 , Y02E30/40
摘要： The present invention is characterized by a reactor cooling system, which comprises a lower drywell which is a space for containing a bottom side portion of the reactor pressure vessel, the lower drywell being disposed in a lower portion of the reactor pressure vessel; reactor recirculation pumps for circulating cooling water in the reactor pressure vessel, the reactor recirculation pump being disposed in the bottom side portion of the reactor pressure vessel in such a manner that a side of a motor portion of the reactor recirculation pump is projected into the lower drywell; and heat exchangers disposed in the lower drywell, the cooling water circulated by the reactor recirculation pump passing through the heat exchanger, wherein number of the reactor recirculation pumps is 4 or 6, and the reactor recirculation pumps are arranged with nearly equal angular spacing.
摘要翻译：本发明的特征在于反应器冷却系统，其包括下部干井，其是用于容纳反应堆压力容器底部的空间，下部干井设置在反应堆压力容器的下部; 用于在反应堆压力容器中循环冷却水的反应器再循环泵，反应堆再循环泵以这样的方式设置在反应堆压力容器的底侧部分，使得反应堆再循环泵的马达部分的一侧投影到下部干井以及设置在下部干井中的热交换器，由反应器再循环泵循环通过热交换器的冷却水，其中反应器再循环泵的数量为4或6，并且反应器再循环泵以几乎相等的角度间隔排列。

10. 发明申请

US20030174802A1 MOULDED RADIATION SHIELD 无效
标题翻译：模制辐射屏蔽
公开(公告)号：US20030174802A1
公开(公告)日：2003-09-18
申请号：US08793416
申请日：1997-10-23
发明人： JOHN THOMAS HARE
IPC分类号： G21C009/00
CPC分类号： G21F1/106 , G21F1/125
摘要： A moulded shield for a source of gamma-rays said shield defining a cavity to receive said source and comprising a core layer of cured liquid silicone resin loaded with particulate gamma radiation-shielding material adapted to surround a radiation source located in said cavity, said core layer being located between two outer layers of solid polymeric material. Also a method of forming a tubular shield.
摘要翻译：一种用于伽马射线源的模制屏蔽，所述屏蔽件限定空腔以接收所述源并且包括固化液体硅树脂的核心层，所述固化液体硅树脂负载有适于包围位于所述空腔中的辐射源的微粒γ辐射屏蔽材料，所述芯层位于固体聚合材料的两个外层之间。还有一种形成管状护罩的方法。

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