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11.发明授权公开(公告)号：US10892061B2
公开(公告)日：2021-01-12
申请号：US16028594
申请日：2018-07-06
申请人： BWXT mPower, Inc.
发明人： Scott J. Shargots
摘要： A pressurized water reactor (PWR) includes a vertical cylindrical pressure vessel having a lower portion containing a nuclear reactor core and a vessel head defining an integral pressurizer. A reactor coolant pump (RCP) mounted on the vessel head includes an impeller inside the pressure vessel, a pump motor outside the pressure vessel, and a vertical drive shaft connecting the motor and impeller. The drive shaft does not pass through the integral pressurizer. The drive shaft passes through a vessel penetration of the pressure vessel that is at least large enough for the impeller to pass through.
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公开(公告)号：US10784004B2
公开(公告)日：2020-09-22
申请号：US15843098
申请日：2017-12-15
发明人： Liping Deng
IPC分类号： G21C15/18 , G21C15/12 , G21C9/012 , G21C15/243
摘要： A containment cooling system capable of improving coolant utilization rate comprises a cooling water tank disposed above the containment, a spray header connected to the cooling water tank by a first communicating pipe, a bell-shaped shield, and a clearance, wherein the cooling water tank is disposed on top of the shield, and the spray header is located in the clearance; cooling fins are disposed in the clearance, wherein a flow passage is disposed between the cooling fins and the outer wall of the containment. The containment cooling system has a higher coolant utilization rate.
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公开(公告)号：US10784002B2
公开(公告)日：2020-09-22
申请号：US15821926
申请日：2017-11-24
发明人： Liping Deng
IPC分类号： G21C15/18 , G21C9/012 , G21C15/12 , G21C15/243
摘要： A nuclear reactor cooling system includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank through a first communicating pipe; and an air tank disposed inside the containment; wherein the spray header is disposed outside the containment and used for spraying cooling water to the outer wall of the containment; the cooling water tank is a closed container, and the air tank is connected to the top portion of the cooling water tank through a second communicating pipe. The nuclear reactor cooling system has higher reliability in cooling containment.
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公开(公告)号：US10672524B2
公开(公告)日：2020-06-02
申请号：US14877048
申请日：2015-10-07
申请人： BWXT mPower, Inc.
发明人： John D. Malloy, III
IPC分类号： G21C7/32 , G21C15/243 , G21D3/04 , G21C13/02 , F16K1/38 , G21C19/307 , G21C15/14 , G21C1/32 , F16K15/18
摘要： A valve assembly includes a flange connected to a vessel penetration of a reactor pressure vessel of a nuclear reactor. A valve is disposed inside the flange or protrudes from the flange into the vessel penetration. The valve includes a valve seat and a movable valve member positioned so that pressure inside the reactor pressure vessel urges the movable valve member against the valve seat to close the valve. The valve assembly further includes a plenum having an inlet via which the plenum can be pressurized to apply pressure to the movable valve member that urges the movable valve member away from the valve seat to open the valve. The plenum may be defined in part by a surface of the movable valve member. The valve assembly preferably does not include a valve actuator.
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公开(公告)号：US10580539B2
公开(公告)日：2020-03-03
申请号：US15715631
申请日：2017-09-26
申请人： SMR INVENTEC, LLC
IPC分类号： G21C15/24 , G21C13/02 , G21C15/243 , G21C9/04
摘要： A nuclear reactor in one embodiment includes a cylindrical body having an internal cavity, a nuclear fuel core, and a shroud disposed in the cavity. The shroud comprises an inner shell, an outer shell, and a plurality of intermediate shells disposed between the inner and outer shells. Pluralities of annular cavities are formed between the inner and outer shells which are filled with primary coolant such as demineralized water. The coolant-filled annular cavities may be sealed at the top and bottom and provide an insulating effect to the shroud. In one embodiment, the shroud may comprise a plurality of vertically-stacked self-supported shroud segments which are coupled together.
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公开(公告)号：US10472996B2
公开(公告)日：2019-11-12
申请号：US15713831
申请日：2017-09-25
申请人： Holtec International
IPC分类号： F01K25/08 , F28B1/06 , F28D7/16 , F28D15/02 , F28F1/16 , G21C19/08 , G21C15/243 , F22B1/16 , G21C15/18 , F28D21/00 , G21C19/07
摘要： An autonomous self-powered system for cooling radioactive materials comprising: a pool of liquid; a closed-loop fluid circuit comprising a working fluid having a boiling temperature that is less than a boiling temperature of the liquid of the pool, the closed-loop fluid circuit comprising, in operable fluid coupling, an evaporative heat exchanger at least partially immersed in the liquid of the pool, a turbogenerator, and a condenser; one or more forced flow units operably coupled to the closed-loop fluid circuit to induce flow of the working fluid through the closed-loop fluid circuit; and the closed-loop fluid circuit converting thermal energy extracted from the liquid of the pool into electrical energy in accordance with the Rankine Cycle, the electrical energy powering the one or more forced flow units.
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公开(公告)号：US20180358138A1
公开(公告)日：2018-12-13
申请号：US15821926
申请日：2017-11-24
发明人： Liping Deng
IPC分类号： G21C15/18 , G21C15/243 , G21C15/12
CPC分类号： G21C15/182 , G21C15/12 , G21C15/18 , G21C15/243 , Y02E30/40
摘要： A nuclear reactor cooling system includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank through a first communicating pipe; and an air tank disposed inside the containment; wherein the spray header is disposed outside the containment and used for spraying cooling water to the outer wall of the containment; the cooling water tank is a closed container, and the air tank is connected to the top portion of the cooling water tank through a second communicating pipe. The nuclear reactor cooling system has higher reliability in cooling containment.
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公开(公告)号：US20180358135A1
公开(公告)日：2018-12-13
申请号：US15821929
申请日：2017-11-24
发明人： Liping Deng
IPC分类号： G21C15/18 , G21C15/243 , G21C15/12
CPC分类号： G21C15/18 , G21C15/12 , G21C15/185 , G21C15/243 , Y02E30/40
摘要： A containment cooling apparatus includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank via a first communicating pipe, wherein the spray header is disposed on an outside of the containment for spraying cooling water to an outer wall of the containment; a bell shaped shield covering the containment, wherein the cooling water tank is disposed on a top portion of the shield; a space formed between an inner wall of the shield and the outer wall of the containment, wherein the spray header is disposed in the space; an exhaust hole disposed on the top portion of the shield; and a water separator disposed in the exhaust hole and/or the space. The containment cooling apparatus has higher utilization of coolant.
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公开(公告)号：US20180068751A1
公开(公告)日：2018-03-08
申请号：US15715631
申请日：2017-09-26
申请人： SMR INVENTEC, LLC
IPC分类号： G21C15/24 , G21C15/243 , G21C13/02 , G21C9/04
CPC分类号： G21C15/24 , G21C9/04 , G21C13/02 , G21C15/243 , Y02E30/40
摘要： A nuclear reactor in one embodiment includes a cylindrical body having an internal cavity, a nuclear fuel core, and a shroud disposed in the cavity. The shroud comprises an inner shell, an outer shell, and a plurality of intermediate shells disposed between the inner and outer shells. Pluralities of annular cavities are formed between the inner and outer shells which are filled with primary coolant such as demineralized water. The coolant-filled annular cavities may be sealed at the top and bottom and provide an insulating effect to the shroud. In one embodiment, the shroud may comprise a plurality of vertically-stacked self-supported shroud segments which are coupled together.
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20.发明授权Pressurized water reactor with upper plenum including cross-flow blocking weir 有权具有上部通风室的加压水反应器包括横流阻塞堰公开(公告)号：US09558855B2
公开(公告)日：2017-01-31
申请号：US13293899
申请日：2011-11-10
申请人： Scott J. Shargots , Matthew W. Ales , Michael J. Edwards , Andrew C. Whitten , Yuanming R. Li , Jeffrey C. Millman , Roy McGillvray
发明人： Scott J. Shargots , Matthew W. Ales , Michael J. Edwards , Andrew C. Whitten , Yuanming R. Li , Jeffrey C. Millman , Roy McGillvray
IPC分类号： G21C15/18 , G21C15/243 , G21C1/08 , G21C1/32 , F04D7/08 , F04D3/00 , F04D29/54 , F04D29/60 , G21C15/00 , G21C13/02
CPC分类号： G21C15/18 , F04D3/005 , F04D7/08 , F04D29/548 , F04D29/605 , G21C1/086 , G21C1/322 , G21C13/02 , G21C15/00 , G21C15/243 , Y02E30/32
摘要： A pressurized water reactor (PWR) comprises: a nuclear core comprising a fissile material; a cylindrical pressure vessel having a vertically oriented cylinder axis and containing the nuclear core immersed in primary coolant water; and a hollow cylindrical central riser disposed concentrically with and inside the cylindrical pressure vessel. A downcomer annulus is defined between the hollow cylindrical central riser and the cylindrical pressure vessel. The hollow cylindrical central riser has a radially expanding upper orifice that merges into an annular divider plate that separates an upper plenum above the annular divider plate from a lower plenum below the annular divider plate. The upper plenum is in fluid communication with the radially expanding upper orifice and the lower plenum is in fluid communication with the downcomer annulus. A weir may extend away from a bottom wall of the lower plenum into the lower plenum. An emergency core cooling system (ECCS) return line nozzle may be arranged to inject water into the upper plenum. A pump support plate spans the inner diameter of the cylindrical pressure vessel and forms a portion of the pressure boundary of the cylindrical pressure vessel, and reactor coolant pumps (RCPs) are supported by the pump support plate. Alternatively, reactor coolant pumps (RCPs) are supported by an arcuate annular ledge formed in the upper portion of the cylindrical pressure vessel.
摘要翻译： 压水反应堆（PWR）包括：包含裂变材料的核芯; 圆柱形压力容器具有垂直取向的圆柱轴线并且包含浸入一次冷却水中的核芯; 以及与圆柱形压力容器同心地设置的中空圆柱形中心提升器。 在中空圆柱形中央提升管和圆柱形压力容器之间限定降液管环。 中空的圆柱形中央提升管具有径向扩张的上部孔口，其合并成环形分隔板，其将环形分隔板上方的上部增压室与环形分隔板下方的下部增压室分隔开。 上部气室与径向膨胀的上部孔口流体连通，下部气室与降液管环流体连通。 堰可以从下部通风室的底壁延伸到下部增压室中。 可以安排应急芯冷却系统（ECCS）返回管线喷嘴将水注入上部通风室。 泵支撑板跨过圆柱形压力容器的内径并形成圆柱形压力容器的压力边界的一部分，并且反应堆冷却剂泵（RCP）由泵支撑板支撑。 或者，反应堆冷却剂泵（RCP）由形成在圆柱形压力容器的上部中的弧形环形凸缘支撑。
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