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公开(公告)号：US20180023423A1
公开(公告)日：2018-01-25
申请号：US15713831
申请日：2017-09-25
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Rajkumar
IPC: F01K25/08 , F28D7/16 , F28D15/02 , G21C15/243 , F22B1/16 , G21C19/08 , F28B1/06 , F28F1/16 , G21C15/18 , F28D21/00 , G21C19/07
CPC classification number: F01K25/08 , F22B1/162 , F28B1/06 , F28D7/1607 , F28D7/1669 , F28D15/0266 , F28D2021/0031 , F28D2021/0064 , F28F1/16 , G21C15/185 , G21C15/243 , G21C19/07 , G21C19/08 , Y02E30/40
Abstract: 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：US20200049030A1
公开(公告)日：2020-02-13
申请号：US16592765
申请日：2019-10-04
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Rajkumar
Abstract: 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：US11569001B2
公开(公告)日：2023-01-31
申请号：US17095834
申请日：2020-11-12
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Gerald Leo Rajkumar
Abstract: A neutron absorbing insert for use in a fuel rack. In one aspect, the insert includes: a plate structure having a first wall and a second wall that is non-coplanar to the first wall; the first and second walls being formed by a single panel of a metal matrix composite having neutron absorbing particulate reinforcement that is bent into the non-coplanar arrangement along a crease; and a plurality of spaced-apart holes formed into the single panel along the crease prior to bending.
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4.发明申请公开(公告)号：US20180029175A1
公开(公告)日：2018-02-01
申请号：US15715897
申请日：2017-09-26
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Rajkumar , Frank David Sanderlin
IPC: B23P15/26 , F28B1/06 , F28B9/10 , F28F1/20 , F28D7/10 , F28F1/00 , F28F1/16 , B21C23/00 , F28D1/02
CPC classification number: B23P15/26 , B21C23/00 , F28B1/06 , F28B9/10 , F28D1/024 , F28D7/10 , F28F1/003 , F28F1/16 , F28F1/20 , F28F2215/04 , F28F2275/125 , Y10T29/4938 , Y10T29/49393
Abstract: A vertical bundle air-cooled heat exchanger. In one embodiment, the invention can be a vertical bundle air-cooled condenser comprising: at least one tube bundle assembly comprising: a tube bundle comprising a plurality of finned tubes arranged in a substantially vertical and side-by-side orientation, each of the plurality of finned tubes comprising a cavity; a top header pipe comprising an inlet header cavity operably coupled to a source of steam; a bottom header pipe comprising an outlet header cavity for collecting condensate; top ends of the plurality of finned tubes coupled to the top header pipe and the bottom ends of the plurality of finned tubes coupled to the bottom header pipe; and a shell having an open top end and open bottom end, the at least one tube bundle assembly positioned within the shell.
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公开(公告)号：US20170051980A1
公开(公告)日：2017-02-23
申请号：US15243180
申请日：2016-08-22
Applicant: Holtec International
Inventor： Krishna P. Singh , Vytautas Vincas Maciunas , Indresh Rampall
IPC: F28B1/06
CPC classification number: F28B1/06 , F28B1/02 , F28B9/06 , F28D1/05366 , F28F9/0243 , F28F9/262
Abstract: An indirect dry cooling system suitable for steam condensing applications in a power plant Rankine cycle includes an air blast chiller having a plurality of interconnected modular cooler cells. Each cell comprises a blower and tube bundle including inlet headers, outlet headers, and plurality of tubes extending between the headers. In one embodiment, the tube bundles form an A-frame cell construction being structurally self-supporting from a base. Each of the tubes may be finned. Cooling water circulating in a closed flow loop on the tube side between the air blast chiller and turbine steam condenser is cooled by ambient air blown through the tube bundles. The cooled water flows through a second tube bundle in the condenser which condenses steam. The heated cooling water returns through the air blast chiller to complete the cooling water cycle.
Abstract translation: 适用于发电厂朗肯循环中的蒸汽冷凝应用的间接干式冷却系统包括具有多个互连的模块式冷却器单元的鼓风冷水机组。 每个电池包括鼓风机和管束，其包括入口集管，出口集管和在集管之间延伸的多个管。 在一个实施例中，管束形成从底部在结构上自支撑的A框单元结构。 每个管可以是翅片。 在气流冷却器和涡轮蒸汽冷凝器之间的管侧上的封闭流动回路中循环的冷却水由穿过管束的环境空气冷却。 冷却的水流过冷凝器中的第二管束，其冷凝蒸汽。 加热的冷却水通过鼓风冷却器返回，以完成冷却水循环。
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Patent Agency Ranking
公开(公告)号：US10472996B2
公开(公告)日：2019-11-12
申请号：US15713831
申请日：2017-09-25
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Rajkumar
IPC: F01K25/08 , F28B1/06 , F28D7/16 , F28D15/02 , F28F1/16 , G21C19/08 , G21C15/243 , F22B1/16 , G21C15/18 , F28D21/00 , G21C19/07
Abstract: 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：US10343240B2
公开(公告)日：2019-07-09
申请号：US15715897
申请日：2017-09-26
Applicant: Holtec International
Inventor： Krishna P. Singh , Indresh Rampall , Joseph Rajkumar , Frank David Sanderlin
IPC: B23P15/26 , F28D7/10 , F28B1/06 , F28B9/10 , F28F1/16 , F28F1/20 , F28D1/02 , B21C23/00 , F28F1/00
Abstract: A vertical bundle air-cooled heat exchanger. In one embodiment, the invention can be a vertical bundle air-cooled condenser comprising: at least one tube bundle assembly comprising: a tube bundle comprising a plurality of finned tubes arranged in a substantially vertical and side-by-side orientation, each of the plurality of finned tubes comprising a cavity; a top header pipe comprising an inlet header cavity operably coupled to a source of steam; a bottom header pipe comprising an outlet header cavity for collecting condensate; top ends of the plurality of finned tubes coupled to the top header pipe and the bottom ends of the plurality of finned tubes coupled to the bottom header pipe; and a shell having an open top end and open bottom end, the at least one tube bundle assembly positioned within the shell.
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公开(公告)号：US10161683B2
公开(公告)日：2018-12-25
申请号：US15271818
申请日：2016-09-21
Applicant: Holtec International
Inventor： Krishna P. Singh , Vytautas Vincas Maciunas , Indresh Rampall
Abstract: An indirect dry cooling system suitable for steam condensing applications in a power plant Rankine cycle in one embodiment includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a blower and tube bundle assemblies each including inlet headers, outlet headers, and plurality of tubes extending between the headers. In one embodiment, the tube bundle assemblies may be shop fabricated as a unit to form an A-frame or V-frame cell construction The tubes may be finned. Steam circulating in a closed flow loop on the tube side from a steam turbine is cooled in each cell by ambient air blown through the tube bundles, thereby forming liquid condensate. The condensate is collected and returned to the Rankine cycle for reheating to form steam to drive the turbine.
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公开(公告)号：US10132568B2
公开(公告)日：2018-11-20
申请号：US15243180
申请日：2016-08-22
Applicant: Holtec International
Inventor： Krishna P. Singh , Vytautas Vincas Maciunas , Indresh Rampall
Abstract: An indirect dry cooling system suitable for steam condensing applications in a power plant Rankine cycle includes an air blast chiller having a plurality of interconnected modular cooler cells. Each cell includes a blower and tube bundle including inlet headers, outlet headers, and plurality of tubes extending between the headers. In one embodiment, the tube bundles form an A-frame cell construction being structurally self-supporting from a base. Each of the tubes may be finned. Cooling water circulating in a closed flow loop on the tube side between the air blast chiller and turbine steam condenser is cooled by ambient air blown through the tube bundles. The cooled water flows through a second tube bundle in the condenser which condenses steam. The heated cooling water returns through the air blast chiller to complete the cooling water cycle.
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公开(公告)号：US09593598B2
公开(公告)日：2017-03-14
申请号：US14710852
申请日：2015-05-13
Applicant: Holtec International
CPC classification number: F01K17/04 , F01K3/18 , F01K9/003 , F22G5/12 , F28B1/02 , F28B9/02 , F28F2250/06 , F28F2265/00
Abstract: A steam conditioning system for discharging bypass steam into a condenser of a steam powered generating plant and other uses. The system includes a steam conditioning device comprising an inner evaporative core and an outer shell. The core may be formed of a tubular piping section disposed at least partially inside the outer shell forming an annular space therebetween. An inlet end of the core receives steam from a piping header fluidly connected to an upstream desuperheating pressure reducing station which injects liquid coolant into the steam stream. Steam discharges through the core outlet end into the outer shell, reverses direction, and flows into the condenser. In one embodiment, the steam conditioning device may be disposed inside the dome of the condenser except for the inlet end. The device intends to increase flow residence time to evaporate entrained carryover coolant droplets in the incoming steam before release to the condenser.
Abstract translation: 一种用于将旁路蒸汽排放到蒸汽发电设备的冷凝器中的蒸汽调节系统和其它用途。 该系统包括蒸汽调节装置，其包括内部蒸发核心和外部壳体。 芯部可以由至少部分地设置在外壳内部的管状管道部分形成，在其间形成环形空间。 芯的入口端部从流体连接到上游减温减压站的管道集管接收蒸汽，其将液体冷却剂注入到蒸汽流中。 蒸汽通过芯出口端排放到外壳中，反向，并流入冷凝器。 在一个实施例中，除了入口端之外，蒸汽调节装置可以设置在冷凝器的圆顶内部。 该装置旨在增加流动停留时间，以在释放到冷凝器之前蒸发进入的蒸汽中夹带的携带冷却剂液滴。
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