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1. 发明授权

US11348699B2 Cooling water safety injection device powered by steam discharged during an accident and nuclear power plant having the same 有权
公开(公告)号：US11348699B2
公开(公告)日：2022-05-31
申请号：US16959875
申请日：2018-08-31
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE , KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGY
发明人： Youngin Kim , Hyungi Yoon , Seungyeob Ryu , Youngmin Bae , Joohyung Moon , Hunsik Han , Soojai Shin , Cheongbong Chang , Seok Kim , Junewoo Kee , Hyunjun Cho , Minkyu Lee , Bonghyun Cho
IPC分类号： G21C15/18 , G21C9/012 , G21C15/243
摘要： A safety injection device includes, a cooling water storage section accommodating cooling water injected into the reactor coolant system, a power producing section producing power with steam discharged from the reactor coolant system in case of an accident, a steam supply pipe transmitting steam discharged from the reactor coolant system to the power producing section, a steam discharge pipe discharging steam used to drive the power producing section and a safety injection line supplying cooling water accommodated in the cooling water storage section to the inside of the reactor coolant system. In addition, cooling water accommodated in the cooling water storage section is supplied to the inside of the reactor coolant system, based on the power produced by the power producing section, through a cooling water inlet pipe connecting the cooling water storage section and the power producing section.

2. 发明授权

US11081242B2 Coolant tank, and passive containment cooling system comprising same 有权
公开(公告)号：US11081242B2
公开(公告)日：2021-08-03
申请号：US16338247
申请日：2017-09-28
申请人： KOREA HYDRO & NUCLEAR POWER CO., LTD
发明人： Sang Gyu Lim , Dae Hun Kim , Hui Un Ha , Han Gon Kim , Sang Won Lee , Sun Heo , Jong Cheon
IPC分类号： G21C15/18 , G21D3/04 , G21C9/012
摘要： In order to provide a coolant tank for preventing a containment from being recompressed and reheated during the cooling of the containment upon occurrence of a design basis accident and a severe accident and a passive containment cooling system comprising the same, the present invention comprises: a storage tank for storing a coolant; a division part which is arranged within the storage tank and divides the inside of the storage tank into a first storage tank and a second storage tank to separate the coolant; a first heat exchanger which is extended from the storage tank to the containment and cools the containment on the basis of the coolant; and a unidirectional valve which is provided on the division part and allows the coolant of the second storage tank to be introduced into the first storage tank when the water level of the first storage tank is reduced.

3. 发明授权

US10811147B2 Passive residual heat removal system and atomic power plant comprising same 有权
公开(公告)号：US10811147B2
公开(公告)日：2020-10-20
申请号：US15108767
申请日：2014-12-29
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Young In Kim , Keung Koo Kim , Jae Joo Ha , Ju Hyeon Yoon , Young Min Bae , Soo Jai Shin , Hun Sik Han , Kyung Jun Kang , Tae Wan Kim
IPC分类号： G21C15/18 , G21C1/32 , G21C9/012 , G21C15/243 , G21D1/00 , F22B1/02 , G21C15/26 , G21C15/08
摘要： The present invention provides a passive residual heat removal system and an atomic power plant comprising the same, the passive heat removal system comprising: a plate-type heat exchanger for causing heat exchange between a primary system fluid or a secondary system fluid which, in order to remove sensible heat from an atomic reactor cooling material system and residual heat from a reactor core, has received the sensible heat and the residual heat, and a cooling fluid which has been introduced from outside of a containment unit; and circulation piping for connecting the atomic reactor cooling material system to the plate-type heat exchanger, thereby forming a circulation channel of the primary system fluid, or connecting a steam generator, which is arranged at the boundary between the primary and secondary systems, to the plate-type heat exchanger, thereby forming a circulation channel of the secondary system fluid.

4. 发明申请

US20200135353A1 PASSIVE ELECTRICAL COMPONENT FOR SAFETY SYSTEM SHUTDOWN USING FARADAY'S LAW 审中-公开
公开(公告)号：US20200135353A1
公开(公告)日：2020-04-30
申请号：US16176716
申请日：2018-10-31
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： Eric P. LOEWEN , David W. WEBBER , Seth Ryan Paul STREGE , Maria E. PFEFFER , Scott L. PFEFFER
IPC分类号： G21D3/04 , G21C9/012 , G21C9/02 , G21C7/36
摘要： An electro-technical device includes a first coil connected to a first sensor for receiving a current therefrom representative of a sensed condition, the first coil being anchored at first and second ends. A second coil is connected to a second sensor for receiving a current therefrom representative of a sensed condition, the second coil being anchored at first and second ends and being adjacent to the first coil. When the first and second coils receive an increased current from the first and second sensors, the first and second coils each create a magnetic flux that repel one another in order to cause at least one of the coils to break so that a shutdown signal can be sent.

5. 发明申请

US20200043618A1 COOLING WATER STORAGE RESERVOIR AND NUCLEAR REACTOR BUILDING PASSIVE COOLING SYSTEM COMPRISING SAME 审中-公开
公开(公告)号：US20200043618A1
公开(公告)日：2020-02-06
申请号：US16337718
申请日：2017-09-28
申请人： KOREA HYDRO & NUCLEAR POWER CO., LTD
发明人： Dae Hun KIM , Sang Won LEE , Sang Gyu LIM , Han Gon KIM , Hui Un HA , Sun HEO , Jong CHEON , Byoung Jo YOON
IPC分类号： G21C15/18 , G21C9/012 , G21C17/032 , B65D88/02 , B65D90/32 , G08B21/18 , G08B7/06
摘要： The present invention comprises: a storage tank in which cooling water is stored; a partition unit which is disposed inside the storage tank, which partitions the inside of the storage tank into a first storage tank and a second storage tank so that the cooling water can be separated and which has an inlet for causing the cooling water of the second storage tank to naturally introduce into the first storage tank according to the water level difference between the first and second storage tanks; a heat exchanger extending from the first storage tank to the inside of the reactor building to cool the reactor building based on the cooling water of the first storage tank; and a steam discharging unit connected to the heat exchanger and discharging the steam generated in the heat exchanger to the outside of the heat exchanger.

6. 发明授权

US10290379B2 Passive containment cooling and filtered venting system, and nuclear power plant 有权
公开(公告)号：US10290379B2
公开(公告)日：2019-05-14
申请号：US15322649
申请日：2015-07-02
申请人： Kabushiki Kaisha Toshiba
发明人： Takashi Sato , Keiji Matsumoto
IPC分类号： G21C9/00 , G21C15/18 , G21C9/004 , G21C9/012 , G21C1/08 , G21C13/10
摘要： A passive containment cooling and filtered venting system includes: an outer well; a scrubbing pool arranged in the outer well; a cooling water pool installed above the dry well and the outer well; a heat exchanger partly submerged in the cooling water; a gas supply pipe that is connected to the inlet plenum of the ruin of the heat exchanger at one end and connected to a gas phase region of the containment vessel at the other end; a condensate return pipe that is connected to the outlet plenum of the heat exchanger at one end, and connected to inside the containment vessel at other end; and a gas vent pipe that is connected to the outlet plenum of the heat exchanger at one end and is submerged in the scrubbing pool at other end.

7. 发明申请

US20180151262A1 EVACUATED CONTAINMENT VESSEL FOR NUCLEAR REACTOR 审中-公开
公开(公告)号：US20180151262A1
公开(公告)日：2018-05-31
申请号：US15835332
申请日：2017-12-07
申请人： NuScale Power, LLC
发明人： Jose N. Reyes, JR. , John T. Groome
IPC分类号： G21C11/08 , G21C9/012 , G21C13/00 , G21C15/18
CPC分类号： G21C11/08 , G21C9/012 , G21C13/00 , G21C15/18 , Y02E30/40
摘要： A system includes a containment vessel configured to prohibit a release of a coolant, and a reactor vessel mounted inside the containment vessel. An outer surface of the reactor vessel is exposed to below atmospheric pressure, wherein substantially all gases are evacuated from within the containment vessel.

8. 发明申请

US20160293281A1 Nuclear Power Plant 审中-公开
公开(公告)号：US20160293281A1
公开(公告)日：2016-10-06
申请号：US15099398
申请日：2016-04-14
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Kenichi KATONO , Masao CHAKI , Kazuaki KITO
IPC分类号： G21C9/012 , G21C13/02 , G21C15/18
摘要： When a power source is lost after an operation stop of a nuclear power plant, a first open/close valve is opened via a first battery at an early stage and steam in a reactor pressure vessel (RPV) is condensed in a suppression pool. The heat of the water in the suppression pool is transmitted to a cooling water pool located below inner space between first and second reactor containment vessels surrounding the RPV. A second open/close valve is opened via a second battery at the early stage and cooling water in a tank is injected into the RPV. After the early stage, a third open/close valve is opened via a third battery, and a cooling medium becomes steam by an evaporator in the RPV, the steam being condensed by a condenser disposed in the inner space to become a liquid of the cooling medium and is returned to the evaporator.

9. 发明授权

US5456532A Vibrating assembly for pressurized water reactor ice baskets 失效
标题翻译：压水堆冰篮振动组件
公开(公告)号：US5456532A
公开(公告)日：1995-10-10
申请号：US235707
申请日：1994-04-29
申请人： James Powers , Lydia Demski
发明人： James Powers , Lydia Demski
IPC分类号： G21C9/012 , G21C19/00
CPC分类号： G21C9/012 , G21Y2002/206 , G21Y2004/20 , Y02E30/32
摘要： A vibrating assembly for vibrating an ice basket of a pressurized water reactor comprises first and second vibrators and a bracket operatively connected to the vibrators. The bracket includes a horizontally extending first armature portion and a horizontally extending second armature portion pivotably attached to the second armature portion. The first and second armature portions have clamps extending downwardly from each of their ends, and each of the clamps includes an arcuate groove extending vertically upwardly from its bottom surface to engage the rim of the ice basket. An attachment portion extends vertically upwardly from and is formed unitarily with the first armature portion, the vibrators being attached to the sides of the attachment portion. The clamps extending from the second armature portion are pivotably connected to and are also laterally adjustable with respect to the first and second ends of the second armature portion.
摘要翻译：用于振动加压水反应堆的冰篮的振动组件包括第一和第二振动器和可操作地连接到振动器的支架。支架包括水平延伸的第一电枢部分和可枢转地附接到第二电枢部分的水平延伸的第二电枢部分。第一和第二衔铁部分具有从其每个端部向下延伸的夹具，并且每个夹具包括从其底表面垂直向上延伸以与冰篮的边缘接合的弓形凹槽。附接部分从第一衔铁部分垂直向上延伸并且与第一电枢部分一体地形成，所述振动器附接到附接部分的侧面。从第二衔铁部分延伸的夹具可枢转地连接到第二衔铁部分的第一和第二端并且也可相对于第二衔铁部分的第一和第二端侧向可调节。

10. 发明授权

US5082619A Passive heat removal from nuclear reactor containment 失效
标题翻译：从核反应堆容器中被动去除热
公开(公告)号：US5082619A
公开(公告)日：1992-01-21
申请号：US432246
申请日：1989-11-06
申请人： Craig D. Sawyer
发明人： Craig D. Sawyer
IPC分类号： G21C9/004 , G21C9/012 , G21C15/18
CPC分类号： G21C15/18 , G21C9/012 , G21Y2002/205 , G21Y2004/402 , Y02E30/40
摘要： A nuclear system of the type which includes a containment wherein a nuclear reactor pressure vessel is located has a suppression pool to which steam can be vented so that it will condense and reduce the pressure in the pressure vessel upon the happening of an accident such as loss of reactor coolant or a steam pipe failure. Steam also can be vented directly to the containment space to further reduce pressure in the reactor. When reactor pressure is lowered to a certain pressure value, a gravity supply of water from an elevated pool of water will have a sufficient head to flow against the pressure in the reactor and into the reactor to submerge the fuel rods in the reactor. One or more isolation condensers are submerged in a large supply of water this supply being elevated some distance above the pressure vessel. At least one isolation condenser has inlet thereto communicated to an open entry conduit disposed in the containment. Steam in the containment space can enter the isolation condenser to be cooled at any time an accident occurs and steam is vented into the containment. The condensing of steam in the condenser boils water in the large supply but since the large water supply is open to atmosphere the boil-off is vented. Condensate resulting from cooling occurring in the isolation condenser is returned to the suppression pool and non-condensable gases present in the steam being condensed are separated from the condensate and vented to the suppression pool.

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