公开(公告)号：US3212984A

公开(公告)日：1965-10-19

申请号：US19609062

申请日：1962-05-21

Applicant: ANGLO BELGE VULCAIN SA SOC

Inventor： JOSEPH TOLLET LOUIS HENRI ,  MARIE MALDAGUE PIERRE EDMOND J

IPC: G21C7/22 ,  G21C7/26

CPC classification number: G21C7/26 ,  G21C7/22 ,  Y02E30/39

公开(公告)号：US3193467A

公开(公告)日：1965-07-06

申请号：US15685650

申请日：1950-04-19

Applicant: EVANS LILEY A

Inventor： EVANS LILEY A

IPC: G21C7/22

CPC classification number: G21C7/22 ,  Y02E30/39

公开(公告)号：US2967809A

公开(公告)日：1961-01-10

申请号：US67825257

申请日：1957-08-13

Applicant: REED GLENN A

Inventor： REED GLENN A

IPC: G21C1/08 ,  G21C3/36 ,  G21C7/22 ,  G21C13/00 ,  G21D5/06

CPC classification number: G21C7/22 ,  G21C1/08 ,  G21C3/36 ,  G21C13/00 ,  G21D5/06 ,  Y02E30/39

公开(公告)号：US20240339231A1

公开(公告)日：2024-10-10

申请号：US18744364

申请日：2024-06-14

Applicant: Deep Fission, Inc.

Inventor： Richard A. Muller ,  Elizabeth Muller

IPC: G21C15/12 ,  G21C3/54 ,  G21C5/10 ,  G21C7/117 ,  G21C7/22 ,  G21C15/243 ,  G21C15/28

CPC classification number: G21C15/12 ,  G21C5/10 ,  G21C7/117 ,  G21C7/22 ,  G21C15/243 ,  G21C15/28 ,  G21C3/54

Abstract: A nuclear reactor system includes a first drillhole extending from a terranean surface through one or more subterranean formations; a reactor core positioned in the first drillhole, and including at least one nuclear fuel element; a second drillhole extending from the terranean surface through the one or more subterranean formations and separated from the first drillhole by a portion of a rock formation; a heat exchanger positioned in the second drillhole in thermal communication with the reactor core through the portion of the rock formation; and a coolant system thermally coupled to the heat exchanger and configured to transport a fluid coolant between the heat exchanger and the terranean surface.

公开(公告)号：US20240339230A1

公开(公告)日：2024-10-10

申请号：US18294810

申请日：2022-08-02

Applicant: Azrudi BIN MUSTAPHA @ PA ,  Keith Henry ARDRON

Inventor： Azrudi BIN MUSTAPHA @ PA ,  Keith Henry ARDRON

IPC: G21C1/14 ,  G21C7/22 ,  G21C15/26

CPC classification number: G21C1/14 ,  G21C7/22 ,  G21C15/26

Abstract: A low pressure water reactor (LPWR) and a method for controlling a LPWR; the LPWR comprises a reactor vessel with an internal cavity comprising a primary coolant, a riser tube, and a core located below ground level with 6-15 bars atmosphere pressure; a steam drum connected to the riser tube at ground level at a pressure of 1-10 bars absolute; a water storage tank to store borated water; a passive injection system injecting the borated water from the water storage tank into the vessel; and low pressure steam turbines generating power at 1-10 bars atmosphere. The vessel heats water up to temperature and the riser tube converts the heated water to steam, delivered to the turbine(s). The conversion creates a difference in a primary coolant density that initiates a density-driven natural circulation of the primary coolant in the riser tube, downcomer, steam drum and core.

公开(公告)号：US20180277262A1

公开(公告)日：2018-09-27

申请号：US15933758

申请日：2018-03-23

Applicant: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.

Inventor： Jin Seok PARK ,  Myoung Goo LEE ,  Yeon Ho CHO ,  Hyunmin KIM ,  Cheol Soo MAENG ,  Hyeong Heon KIM ,  Byung Jin LEE ,  Chang Kyu CHUNG

IPC: G21C9/02 ,  G21C7/22

CPC classification number: G21C9/02 ,  G21C5/02 ,  G21C7/22 ,  G21C9/027 ,  H01F7/08 ,  Y02E30/40

Abstract: Provided is a secondary shutdown structure of a nuclear reactor, which uses sliding doors, and more particularly, to a secondary shutdown structure of a nuclear reactor, which uses sliding doors and is capable of shutting down a nuclear reactor reliably with a simple structure without using a boric acid solution.

公开(公告)号：US20180190394A1

公开(公告)日：2018-07-05

申请号：US15858462

申请日：2017-12-29

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yonghee Kim ,  Chihyung Kim ,  Jeong Ik Lee

IPC: G21C7/22 ,  G21C9/02

CPC classification number: G21C7/22 ,  G21C7/08 ,  G21C9/022 ,  Y02E30/39

Abstract: The present invention relates to a nuclear reactor, more precisely a passive safety device applicable to a thermal neutron reactor and a nuclear fuel assembly equipped with the same. The nuclear fuel assembly for a thermal neutron reactor of the present invention includes multiple fuel rods; multiple guide thimbles arranged between the fuel rods; and a passive safety device including neutron absorber parts which are inserted in one or more guide thimbles.

公开(公告)号：US20150200021A1

公开(公告)日：2015-07-16

申请号：US14154593

申请日：2014-01-14

Applicant: Eric Paul LOEWEN ,  Weston Matthew CUNDIFF ,  Pradip SAHA ,  Derek BASS

Inventor： Eric Paul LOEWEN ,  Weston Matthew CUNDIFF ,  Pradip SAHA ,  Derek BASS

IPC: G21C7/22 ,  G21C7/32

CPC classification number: G21C7/22 ,  G21C1/02 ,  G21C7/08 ,  G21C7/32 ,  G21C9/027 ,  G21C15/247 ,  G21D3/06 ,  Y02E30/35 ,  Y02E30/39

Abstract: A passive shutdown system for a liquid metal cooled reactor may include a tube and a neutron absorber within the tube. The tube may be configured to extend through a core of the liquid metal cooled reactor. The tube has an upper end and a lower end. The tube defines a flow path for a liquid metal coolant. The neutron absorber is a mobile structure configured to partially obstruct a flow of the liquid metal coolant within the flow path. A method of operating a liquid metal cooled reactor may involve the use of the passive shutdown system.

Abstract translation: 用于液体金属冷却反应器的被动关闭系统可以包括在管内的管和中子吸收器。 管可以被配置成延伸穿过液态金属冷却反应器的芯。 管具有上端和下端。 管限定了液态金属冷却剂的流动路径。 中子吸收器是被配置为部分地阻塞液体金属冷却剂在流动路径内的流动的移动结构。 操作液态金属冷却反应器的方法可涉及使用被动关闭系统。

公开(公告)号：US06728328B1

公开(公告)日：2004-04-27

申请号：US03429712

申请日：1954-05-13

Applicant: Howard C. Ellsworth

Inventor： Howard C. Ellsworth

IPC: G21C9027

CPC classification number: G21D3/06 ,  G21C7/22 ,  G21C9/027 ,  G21Y2002/207 ,  G21Y2002/50 ,  G21Y2004/304 ,  G21Y2004/402 ,  Y02E30/39

Abstract: A neutronic reactor comprising an active portion containing material fissionable by neutrons of thermal energy, means to control a neutronic chain reaction within the reactor comprising a safety device and a regulating device, a safety device including means defining a vertical channel extending into the reactor from an aperture in the upper surface of the reactor, a rod containing neutron-absorbing materials slidably disposed within the channel, means for maintaining the safety rod in a withdrawn position relative to the active portion of the reactor including means for releasing said rod on actuation thereof, a hopper mounted above the active portion of the reactor having a door disposed at the bottom of the hopper opening into the vertical channel, a plurality of bodies of neutron-absorbing materials disposed within the hopper, and means responsive to the failure of the safety rod on actuation thereof to enter the active portion of the reactor for opening the door in the hopper.

Abstract translation: 一种中子反应器，包括含有可由热能中子裂变的材料的活性部分，用于控制反应器内的中子链反应的装置，该反应器包括安全装置和调节装置，安全装置包括限定从反应器中延伸进入反应器的垂直通道的装置 在反应器的上表面中的孔，包含可滑动地设置在通道内的中子吸收材料的杆，用于将安全杆相对于反应器的有效部分保持在撤回位置的装置，包括用于在致动时释放所述杆的装置， 安装在反应器的有效部分上方的料斗，其具有设置在料斗开口的底部进入垂直通道的门，设置在料斗内的多个中子吸收材料体，以及响应于安全杆故障的装置 在其启动时进入反应器的活动部分，以打开料斗中的门。

公开(公告)号：US6160863A

公开(公告)日：2000-12-12

申请号：US108118

申请日：1998-07-01

Applicant: Philip H. Hepner

Inventor： Philip H. Hepner

IPC: G21C15/24 ,  G21C7/22 ,  G21C15/243 ,  G21C9/00

CPC classification number: G21C15/243 ,  G21C7/22 ,  Y02E30/39

Abstract: A nuclear reactor coolant system includes a primary coolant circuit connected to a secondary coolant circuit. A desired amount of coolant is bled from the primary circuit to the secondary circuit for purification and controlling chemical composition of the coolant. Variable speed charging pumps are provided in the secondary circuit to pump coolant back into the primary circuit at variable pressures and flow rates. A pressurizer level control system is also disclosed for controlling pump speeds.

Abstract translation: 核反应堆冷却剂系统包括连接到二次冷却剂回路的主冷却剂回路。 所需量的冷却剂从初级回路排放到次级回路，用于净化和控制冷却剂的化学成分。 在二次回路中提供变速充气泵，以可变的压力和流量将冷却剂泵回主回路。 还公开了一种用于控制泵速度的加压器液位控制系统。