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1. 发明授权

US11340023B1 Counter gravity heat pipe techniques 有权
公开(公告)号：US11340023B1
公开(公告)日：2022-05-24
申请号：US15921800
申请日：2018-03-15
申请人： Triad National Security, LLC
发明人： Robert S. Reid , Robert A. Zimmerman , Cody M. Williams , Morgan T. Biel , Stephen J. Obrey , Todd A. Jankowski , Justin Simpson , Martin J. Ward , Lydia Wermer
IPC分类号： F28D15/04 , F28D15/02 , G21C15/02 , G21C15/257 , G21C15/243 , F28D21/00
摘要： A pump assisted heat pipe may combine the low mass flow rate required of latent heat pipe transfer loops with a hermetically sealed pump to overcome the typical heat pipe capillary limit. This may result in a device with substantially higher heat transfer capacity over conventional pumped single-phase loops, heat pipes, loop heat pipes, and capillary pumped loops with very modest power requirements to operate. Further, one or more embodiments overcome the gravitation limitations in the conventional heat pipe configuration, e.g., when the heat addition zone is above the heat rejection zone, the capillary forces are required to transfer the liquid from the heat rejection zone to the heat addition zone against gravity.

2. 发明授权

US11079054B2 Cross-over fluid coupling 有权
公开(公告)号：US11079054B2
公开(公告)日：2021-08-03
申请号：US15735374
申请日：2016-06-22
申请人： ATOMIC ENERGY OF CANADA LIMITED
发明人： James M. King , Andrew B. Kittmer , Terry J. Schaubel
IPC分类号： F16L39/00 , F16L9/19 , F28F9/26 , F28D7/10 , F28F13/06 , G21C3/322 , G21C15/02 , G21C3/328 , G21C1/20 , G21C21/00
摘要： A cross-over fluid coupling includes a first coupling end and a second coupling end. A plurality of first conduits have inner ends disposed toward the first coupling end and outer ends spaced apart from the inner end toward the second coupling end and being outboard of the inner end. A plurality of second conduits have outer ends that are disposed toward the first coupling end and positioned laterally outboard of the inner end of at least one of the first conduits, and inner ends that are spaced apart from the outer end toward the second coupling end in the axial direction and is laterally inboard of the outer end of the at least one of the first conduits.

3. 发明授权

US10937557B2 Systems and methods for airflow control in reactor passive decay heat removal 有权
公开(公告)号：US10937557B2
公开(公告)日：2021-03-02
申请号：US15785548
申请日：2017-10-17
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： James P. Sineath , Dean D. Molinaro , William C. Dawn , Eric P. Loewen
IPC分类号： G21C15/02 , G21C15/18 , G21C9/00 , G21C13/02 , G21C15/26
摘要： Damper systems selectively reduce coolant fluid flow in nuclear reactor passive cooling systems, including related RVACS. Systems include a damper that blocks the flow in a coolant conduit and is moveable to open, closed, and intermediate positions. The damper blocks the coolant flow when closed to prevent heat loss, vibration, and development of large temperature gradients, and the damper passively opens, to allow full coolant flow, at failure and in transient scenarios. The damper may be moveable by an attachment extending into the coolant channel that holds the damper in a closed position. When a transient occurs, the resulting loss of power and/or overheat causes the attachment to stop holding the damper, which may be driven by gravity, pressure, a spring, or other passive structure into the open position for full coolant flow. A power source and temperature-dependent switch may detect and stop holding the damper closed in such scenarios.

4. 发明授权

US10677502B2 Heat transport apparatus 有权
公开(公告)号：US10677502B2
公开(公告)日：2020-06-09
申请号：US15893811
申请日：2018-02-12
申请人： Kabushiki Kaisha Toshiba
发明人： Takuya Hongo , Rei Kimura , Tomonao Takamatsu , Chikako Iwaki , Hideki Horie
IPC分类号： F25B39/00 , F28D15/00 , F25B47/00 , F28D15/02 , G21C15/02 , G21C15/28 , F25B23/00 , H01L23/427 , F28D15/06 , F25B39/04 , F25B39/02 , F28D21/00
摘要： According to one embodiment, a heat transport apparatus includes an evaporator, a cooling unit, a channel structure, and a heating mechanism. The evaporator vaporizes a refrigerant by heat generated by a heat-generating element. The cooling unit is provided above the evaporator and cools and condenses the refrigerant vaporized in the evaporator. The channel structure constitutes a channel through which the refrigerant circulates between the evaporator and the cooling unit. The heating mechanism heats the cooling unit and suppresses solidification of the refrigerant at the cooling unit.

5. 发明授权

US10600520B2 Riser cone apparatus to provide compliance between reactor components and minimize reactor coolant bypass flow 有权
公开(公告)号：US10600520B2
公开(公告)日：2020-03-24
申请号：US15483466
申请日：2017-04-10
申请人： BWXT mPower, Inc.
发明人： Tyler A. Edwards , Scott J. Shargots
IPC分类号： G21C13/028 , G21C13/02 , G21C13/04 , G21C1/32 , G21C15/00 , G21C15/02
摘要： A riser cone has a lower end sized to engage a cylindrical lower riser section of a nuclear reactor and an upper end sized to engage a cylindrical upper riser section of the nuclear reactor. The riser cone defines a compression sealing ring that is compressed between the lower riser section and the upper riser section in the assembled nuclear reactor. In some embodiments the riser cone comprises: a lower element defining the lower end of the riser cone; an upper element defining the upper end of the riser cone; and a compliance spring compressed between the lower element and the upper element. In some embodiments the riser cone comprises a frustoconical compression sealing ring accommodating a reduced diameter of the upper riser section as compared with the diameter of the lower riser section.

6. 发明授权

US10553322B2 Modular fluid flow distribution system in which differently shaped plates can be rearranged to different positions 有权
公开(公告)号：US10553322B2
公开(公告)日：2020-02-04
申请号：US14867936
申请日：2015-09-28
申请人： GE-HITACHI NUCLEAR ENERGY AMERICAS LLC
发明人： Mitra Hosseini , Gerald A. Deaver , Jesus G. Diaz-Quiroz , Randy M. Brown
IPC分类号： G21C15/02 , F28F9/02
摘要： Modular flow control systems include several differently-shaped structures to achieve desired flow characteristics in fluid flow. Systems include one or many plates held in desired positions by a retainer within the flow. The plates are uniquely shaped based on their position, or vice versa, to shape flow in a desired manner. The plates may fill an entire flow area or may extend partially throughout the area. Plates can take on any shape and are useable in systems installed in any type of flow conduit. When used in a PCCS upper manifold in a nuclear reactor, a chevron plate directly below the inlet divides flow along the entire upper manifold. Perforated plates allow flow to pass at ends of the PCCS upper manifold. The plates can be installed along a grooved edge during an access period and held in static position by filling the length of the PCCS upper manifold.

7. 发明授权

US10446284B2 Instrumentation conduit housing 有权
公开(公告)号：US10446284B2
公开(公告)日：2019-10-15
申请号：US15377601
申请日：2016-12-13
申请人： TerraPower, LLC
发明人： Peter W. Gibbons , P. Harley Park
IPC分类号： G21C17/116 , G21C1/02 , G21C15/02 , G21C5/00
摘要： A conduit housing includes a top face, a pair of side faces disposed opposite each other and adjacent to the top face, a front side, and a rear side. The top face includes a plurality of vertical conduit ports arranged in a plurality of rows. The front side is positioned between the pair of side faces and defines a plurality of stepped faces. The rear side is disposed opposite the front side and adjacent the top face. The stepped faces include a plurality of downward faces and each of the plurality of downward faces defines a downward face plane. The stepped faces also include a plurality of upward faces, where each of the plurality of upward faces defines an upward face plane. Each upward face includes a plurality of pitched conduit ports.

8. 发明授权

US09773572B2 Pressure-tube reactor with pressurized moderator 有权
公开(公告)号：US09773572B2
公开(公告)日：2017-09-26
申请号：US13641627
申请日：2011-04-21
申请人： Robert Bodner , Jonathan Tyo , Dan Popov , Sermet Kuran
发明人： Robert Bodner , Jonathan Tyo , Dan Popov , Sermet Kuran
IPC分类号： G21C1/08 , G21C5/02 , G21C19/19 , G21C1/10 , G21C15/02
CPC分类号： G21C1/20 , G21C1/086 , G21C1/10 , G21C5/02 , G21C15/02 , G21C15/08 , G21C15/20 , G21C19/14 , G21C19/19 , Y02E30/40
摘要： A nuclear reactor can include a pressure vessel for containing a pressurized moderator at a first pressure. The nuclear reactor can also include a plurality of fuel channels for a coolant fluid at a second pressure. The plurality of fuel channels are fluidly connected at inlet ends thereof to a coolant supply conduit and are adapted to receive nuclear fuel bundles and to be mounted within the pressure vessel and surrounded by the moderator. The outlet ends of the fuel channels are fluidly connected to a coolant outlet conduit to enable the coolant fluid to circulate from the coolant supply conduit through the fuel channels to the coolant outlet conduit. The plurality of fuel channels maintain separation between the coolant fluid circulating within the fuel channels and the moderator.

9. 发明申请

US20170162280A1 PIPING ENHANCEMENT FOR BACKFLOW PREVENTION IN A MULTIPLE LOOP, METAL COOLED NUCLEAR REACTOR SYSTEM 审中-公开
公开(公告)号：US20170162280A1
公开(公告)日：2017-06-08
申请号：US14960511
申请日：2015-12-07
申请人： Eric Paul LOEWEN , Seth Ryan Paul STREGE , Nicholas Francis O'NEILL , Colin Christopher O'CONNOR , Chelsea Ann CURTIN , Edwin WU
发明人： Eric Paul LOEWEN , Seth Ryan Paul STREGE , Nicholas Francis O'NEILL , Colin Christopher O'CONNOR , Chelsea Ann CURTIN , Edwin WU
IPC分类号： G21C15/02
CPC分类号： G21C15/247 , F04B17/00 , F04B17/04 , Y02E30/35
摘要： A sodium-cooled nuclear reactor includes at least one electromagnetic pump assembly and a backflow reduction pipe. The backflow reduction pipe may include an inlet, an outlet, at least one tubular section having a first length and a first diameter, and at least one fluid diode section between the inlet and the outlet.

10. 发明申请

US20160010749A1 LEAKAGE PREVENTION SEAL, AND PUMP FOR NUCLEAR REACTOR COOLING MATERIAL 有权
标题翻译：泄漏防护密封件和核反应堆冷却材料泵
公开(公告)号：US20160010749A1
公开(公告)日：2016-01-14
申请号：US14769714
申请日：2013-12-24
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Hidetaka Kafuku , Hidekazu Uehara , Yukihiro Sakaguchi
IPC分类号： F16J15/16 , G21C15/02
CPC分类号： F16J15/164 , F04D7/08 , F04D29/126 , F16J15/008 , G21C15/02
摘要： This leakage prevention seal is provided with: a first seal ring which surrounds a rotating shaft and which is in circumferential contact with the surface of a housing which faces the upstream side; a second seal ring, which, on the upstream side of the first seal ring, surrounds the rotating shaft and which is in circumferential contact with the first seal ring; and a heat-driven section which, when high-temperature pressurized water reaches the heat-driven section, reduces the diameter of both the first seal ring and the second seal ring and causes the inner peripheral surfaces of both the first seal ring and the second seal ring to be in contact with the rotating shaft. The circumferential positions of both a first range between the first seal ring and the rotating shaft and a second range formed by the second seal ring are different.
摘要翻译：该防漏密封件设置有：围绕旋转轴并且与面向上游侧的壳体的表面周向接触的第一密封环; 第二密封环，其在所述第一密封环的上游侧围绕所述旋转轴并与所述第一密封环周向接触; 以及热驱动部，当高温加压水到达所述热驱动部时，所述第一密封环和所述第二密封环的直径减小，并且使所述第一密封环和所述第二密封环的内周面密封环与旋转轴接触。第一密封环和旋转轴之间的第一范围和由第二密封环形成的第二范围的周向位置是不同的。

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