专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US09786394B2 Component cooling water system for nuclear power plant 有权
公开(公告)号：US09786394B2
公开(公告)日：2017-10-10
申请号：US14423149
申请日：2013-08-21
申请人： SMR Inventec, LLC
发明人： Krishna P. Singh , Joseph Rajkumar
IPC分类号： G21C15/18 , G21C15/12 , G21C15/26 , G21C11/08 , G21D1/04 , G21C9/012 , G21C11/02 , G21C13/02 , G21C19/07
CPC分类号： G21C15/18 , G21C9/012 , G21C11/02 , G21C11/088 , G21C13/02 , G21C15/12 , G21C15/26 , G21C19/07 , G21D1/04 , Y02E30/40
摘要： A component cooling water system for a nuclear power plant. In one embodiment, the system includes an inner containment vessel housing a nuclear reactor and an outer containment enclosure structure. An annular water reservoir is formed between the containment vessel and containment enclosure structure which provides a heat sink for dissipating thermal energy. A shell-less heat exchanger is provided having an exposed tube bundle immersed in water held within the annular water reservoir. Component cooling water from the plant flows through the tube bundle and is cooled by transferring heat to the annular water reservoir. In one non-limiting embodiment, the tube bundle may be U-shaped.

72. 发明授权

US09786393B2 Passive reactor containment protection system 有权
公开(公告)号：US09786393B2
公开(公告)日：2017-10-10
申请号：US14403082
申请日：2013-05-21
申请人： SMR Inventec, LLC
发明人： Krishna P. Singh
IPC分类号： G21C15/12 , G21C9/00 , G21C9/004 , G21C13/02 , G21C15/18 , G21C15/26
CPC分类号： G21C15/12 , G21C9/00 , G21C9/004 , G21C13/02 , G21C15/18 , G21C15/26 , Y02E30/40
摘要： A nuclear reactor containment system with passive cooling capabilities. In one embodiment, the system includes an inner containment vessel for housing a nuclear steam supply system and an outer containment enclosure structure. An annular water-filled reservoir may be provided between the containment vessel and containment enclosure structure which provides a heat sink for dissipating thermal energy, in the event of a thermal energy release incident inside the containment vessel, the reactor containment system provides passive water and air cooling systems operable to regulate the heat of the containment vessel and the equipment inside. In one embodiment, cooling water makeup to the system is not required to maintain containment vessel and reactor temperatures within acceptable margins.

73. 发明授权

US09779840B2 PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel 有权
公开(公告)号：US09779840B2
公开(公告)日：2017-10-03
申请号：US14064291
申请日：2013-10-28
申请人： Babcock & Wilcox mPower, Inc
发明人： Thomas G. Graham
IPC分类号： G21C15/18 , G21C1/09 , G21D1/00 , G21D3/06 , G21C9/012
CPC分类号： G21C15/182 , G21C1/09 , G21C9/012 , G21C2015/185 , G21D1/00 , G21D3/06 , Y02E30/32
摘要： In conjunction with a pressurized water reactor (PWR) and a pressurizer configured to control pressure in the reactor pressure vessel, a decay heat removal system comprises a pressurized passive condenser, a turbine-driven pump connected to suction water from at least one water source into the reactor pressure vessel; and steam piping configured to deliver steam from the pressurizer to the turbine to operate the pump and to discharge the delivered steam into the pressurized passive condenser. The pump and turbine may be mounted on a common shaft via which the turbine drives the pump. The at least one water source may include a refueling water storage tank (RWST) and/or the pressurized passive condenser. A pressurizer power operated relief valve may control discharge of a portion of the delivered steam bypassing the turbine into the pressurized passive condenser to control pressure in the pressurizer.

74. 发明申请

US20170263340A1 PASSIVE SAFETY SYSTEM AND NUCLEAR POWER PLANT COMPRISING SAME 审中-公开
公开(公告)号：US20170263340A1
公开(公告)日：2017-09-14
申请号：US15505019
申请日：2015-08-19
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In KIM , Suhn CHOI , Keung Koo KIM , Young Min BAE , Soo Jai SHIN
IPC分类号： G21C15/18
摘要： The present disclosure relates to a passive safety system which uses a heat exchanger together with a thermoelectric element, and a nuclear power plant comprising the same. Disclosed are a passive safety system and a nuclear power plant comprising the same, the passive safety system comprising: a heat exchanger; a thermoelectric element; and a fan unit. The heat exchanger is formed at a space inside or outside a sealed housing, and in the heat exchanger, atmosphere is introduced and heat exchange is carried out in order to lower the pressure or temperature of the atmosphere inside the housing if an accident occurs in a reactor coolant system or a secondary system disposed inside the housing. The thermoelectric element is disposed in the heat exchanger, and when a cooling fluid, for performing heat exchange with the atmosphere, performs heat exchange with the atmosphere, the thermoelectric element is configured to generate electricity due to a temperature difference between the atmosphere and the cooling fluid. The fan unit is connected to the thermoelectric element via an electricity path so as to receive electricity generated by the thermoelectric element, and is configured to increase the flow rate of the atmosphere or the cooling fluid which passes through the heat exchanger such that the heat exchange of the atmosphere and the cooling fluid can be smoothly carried out.

75. 发明申请

US20170200515A1 PASSIVE REACTOR COOLING SYSTEM 审中-公开
公开(公告)号：US20170200515A1
公开(公告)日：2017-07-13
申请号：US15419227
申请日：2017-01-30
申请人： SMR Inventec, LLC
发明人： Krishna P. Singh , Joseph Rajkumar
IPC分类号： G21C15/18 , G21C15/12 , G21C13/02
摘要： A nuclear reactor cooling system with passive cooling capabilities operable during a reactor shutdown event without available electric power. In one embodiment, the system includes a reactor vessel with nuclear fuel core and a steam generator fluidly coupled thereto. Primary coolant circulates in a flow loop between the reactor vessel and steam generator to heat secondary coolant in the steam generator producing steam. The steam flows to a heat exchanger containing an inventory of cooling water in which a submerged tube bundle is immersed. The steam is condensed in the heat exchanger and returned to the steam generator forming a closed flow loop in which the secondary coolant flow is driven by natural gravity via changes in density from the heating and cooling cycles. In other embodiments, the cooling system is configured to extract and cool the primary coolant directly using the submerged tube bundle heat exchanger.

76. 发明授权

US09646726B2 Alternate passive spent fuel pool cooling systems and methods 有权
公开(公告)号：US09646726B2
公开(公告)日：2017-05-09
申请号：US13760263
申请日：2013-02-06
申请人： WESTINGHOUSE ELECTRIC COMPANY LLC
发明人： Jeffrey T. Dederer , William L. Brown , Frank Vereb
IPC分类号： G21C19/00 , G21C15/18 , G21D3/06 , G21C19/07
CPC分类号： G21C15/18 , G21C19/07 , G21C19/40 , G21D3/06 , G21Y2002/207 , Y02E30/40
摘要： The present invention relates to passive cooling systems and methods for cooling a spent fuel pool in a nuclear power plant in the absence of onsite and offsite power, e.g., in a station blackout event. The systems include a gap formed along the periphery of the spent fuel pool, a heat sink, one or more thermal conductive members, a water supply system for delivering water to at least partially fill the gap and conduct heat generated from the spent fuel pool through the gap to at least one thermal conductive member for transporting heat to the heat sink, and a thermal switch mechanism for activating and deactivating the water supply system. In particular, the passive spent fuel pool cooling systems and methods of the invention are useful when the active spent fuel pool cooling system is unavailable or inoperable.

77. 发明授权

US09640286B2 Passive cooling apparatus of spent fuel pool 有权
公开(公告)号：US09640286B2
公开(公告)日：2017-05-02
申请号：US13593115
申请日：2012-08-23
申请人： Sang Jong Lee , Geol Woo Lee , Young Baek Kim , Jae Don Choi , Jae Il Lee , Sung Ju Cho , Jung Seon An , Dong Kyu Lee , Hye Jin Kim , Dong Uk Choi
发明人： Sang Jong Lee , Geol Woo Lee , Young Baek Kim , Jae Don Choi , Jae Il Lee , Sung Ju Cho , Jung Seon An , Dong Kyu Lee , Hye Jin Kim , Dong Uk Choi
IPC分类号： G21C19/07 , G21C15/18 , G21D1/04 , G21D3/04 , G21C15/24
CPC分类号： G21C19/07 , G21C15/18 , G21C15/24 , G21D1/04 , G21D3/04 , Y02E30/40
摘要： An apparatus for cooling a spent fuel pool having a heat exchanger includes a cooling water pool positioned above the spent fuel pool; a floating device configured to be elevated according to a water level of a cooling water in the spent fuel pool; and an emergency cooling water supply pipe configured to form a path through which the cooling water of the cooling water pool is moved to the spent fuel pool and configured to include a floating valve that opens or closes a flow passage of the cooling water in connection with the elevation of the floating device.

78. 发明授权

US09595357B2 Passive cooling system of nuclear power plant 有权
标题翻译：核电站被动冷却系统
公开(公告)号：US09595357B2
公开(公告)日：2017-03-14
申请号：US13606413
申请日：2012-09-07
申请人： Sang Jong Lee , Young Baek Kim , Byung Chan Baek , Hae Nam Yang , Dae Jin Lee , Young Jae Choi , Jae Kyu Lee , Kyun Heo , Kyung Woo Shim , Seoung Eun Chun
发明人： Sang Jong Lee , Young Baek Kim , Byung Chan Baek , Hae Nam Yang , Dae Jin Lee , Young Jae Choi , Jae Kyu Lee , Kyun Heo , Kyung Woo Shim , Seoung Eun Chun
IPC分类号： G21C15/18 , G21D3/06
CPC分类号： G21D3/06 , G21C15/18 , Y02E30/40
摘要： A passive cooling system of a nuclear power plant includes a steam generator, a cooling water storage tank, a water cooling heat exchanger, an air cooling heat exchanger, a divergence valve, and a cooling tower. The steam generator generates steam by heat exchange with a primary coolant system, and the cooling water storage tank stores cooling water therein. The water cooling heat exchanger is disposed in the cooling water storage tank, and the air cooling heat exchanger is connected to the steam generator. The divergence valve is controllable to divert steam from the steam generator into both the water cooling heat exchanger and the air cooling heat exchanger. Each of the cooling water storage tank, the water cooling heat exchanger, and the air cooling heat exchanger are located in the cooling tower.
摘要翻译：核电站的被动冷却系统包括蒸汽发生器，冷却水储存箱，水冷式热交换器，空气冷却热交换器，发散阀和冷却塔。蒸汽发生器通过与主冷却剂系统的热交换产生蒸汽，并且冷却水储存罐在其中存储冷却水。水冷式热交换器配置在冷却水储存箱内，空气冷却用热交换器与蒸汽发生器连接。分流阀是可控制的，以将来自蒸汽发生器的蒸汽转移到水冷却热交换器和空气冷却热交换器中。冷却水存储箱，水冷式热交换器和空气冷却热交换器各自位于冷却塔中。

79. 发明申请

US20170025194A1 PASSIVE SAFETY SYSTEM FOR REMOVING DECAY HEAT AND METHOD OF PASSIVELY INCREASING A COOLANT FLOW USING THE SAME 审中-公开
标题翻译：用于去除衰减热的被动安全系统及其使用方法随意增加冷却剂流量
公开(公告)号：US20170025194A1
公开(公告)日：2017-01-26
申请号：US14804488
申请日：2015-07-21
申请人： Eric Paul LOEWEN , Seth Ryan Paul STREGE , Nicholas Francis O'NEILL , Levon Pierre KEUSSEYAN
发明人： Eric Paul LOEWEN , Seth Ryan Paul STREGE , Nicholas Francis O'NEILL , Levon Pierre KEUSSEYAN
IPC分类号： G21C15/18 , G21C15/24 , H01L35/30
CPC分类号： G21C15/18 , G21C15/182 , G21C15/24 , H01L35/30 , Y02E30/40
摘要： A passive safety system for removing decay heat from a nuclear power system may comprise a shroud structure and a heat generator that is within the shroud structure. A thermoelectric device may be disposed in thermal contact with the heat generator. The thermoelectric device is configured to generate a voltage based on a temperature difference between opposite parts of the thermoelectric device. A fan arrangement is disposed above the heat generator and in electrical connection with the thermoelectric device. The fan arrangement is configured to increase a coolant flow through the coolant passage to the outlet opening based on the voltage from the thermoelectric device.
摘要翻译：用于从核动力系统去除腐蚀热的被动安全系统可以包括护罩结构和位于护罩结构内的热发生器。可以将热电装置设置成与发热体热接触。热电装置被配置为基于热电装置的相对部分之间的温度差产生电压。风扇布置设置在热发生器上方并与热电装置电连接。风扇装置构造成基于来自热电装置的电压增加通过冷却剂通道的冷却剂流到出口开口。

80. 发明授权

US09502143B2 Floating nuclear power reactor with a self-cooling containment structure 有权
标题翻译：具有自冷却遏制结构的浮式核动力反应堆
公开(公告)号：US09502143B2
公开(公告)日：2016-11-22
申请号：US14109072
申请日：2013-12-17
申请人： Palvannanathan Ganesan
发明人： Palvannanathan Ganesan
IPC分类号： G21C15/18 , G21C11/04 , G21C13/024 , G21C17/112 , G21D5/02
CPC分类号： G21C15/18 , G21C11/04 , G21C13/024 , G21C17/112 , G21D5/02 , G21Y2002/207 , G21Y2004/30 , Y02E30/40
摘要： A floating nuclear power reactor including one or two nuclear power reactors positioned in a floating vessel such as a barge or the like. Means is disclosed for flooding the containment structure of the nuclear reactor and for flooding the reactor vessels to cool the same.
摘要翻译：包括一个或两个核动力反应堆的浮式核动力反应堆，其位于诸如驳船等的浮动容器中。公开了用于淹没核反应堆的容纳结构并用于淹没反应器容器以冷却其的装置。

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