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公开(公告)号：US20170016678A1
公开(公告)日：2017-01-19
申请号：US15279730
申请日：2016-09-29
申请人： Holtec International
CPC分类号： F28D7/1646 , F28D7/1607
摘要： A tubular heat exchanger comprising a plurality of shell-side and tube-side fluid passes. The heat exchanger includes an elongated cylindrical shell, a head coupled thereto, and a tube bundle positioned in the shell and supported in part by a tube sheet attached to the head. In one embodiment, the shell of the heat exchanger comprises a plurality of vertically stacked shell-side compartments each defining a shell-side pass. The head of the heat exchanger comprises a plurality of tube-side compartments each defining a tube-side pass. A tube-side fluid enters the head and flows through the tube bundle progressively through a series of tube-side passes to heat the fluid with a shell-side fluid. Each shell-side pass contains multiple tube-side passes. In one embodiment, the tube-side fluid performs a plurality of horizontally arranged tube-side fluid passes in each vertically stacked shell-side fluid pass before cascading vertically to a next shell-side fluid pass.
摘要翻译： 一种管状热交换器，其包括多个壳侧和管侧流体通道。 热交换器包括细长的圆柱形壳体，与其连接的头部和位于壳体中的管束，并且部分地由附接到头部的管板支撑。 在一个实施例中，热交换器的壳体包括多个垂直堆叠的壳侧隔室，每个隔室限定壳侧通道。 热交换器的头部包括多个管侧隔室，每个隔室限定管侧通道。 管侧流体进入头部并逐渐通过管束流过一系列管侧通道，以用壳侧流体加热流体。 每个壳侧通道都包含多个管侧通道。 在一个实施例中，管侧流体在垂直于下一个壳侧流体通道级联之前，在每个垂直堆叠的壳侧流体通道中执行多个水平布置的管侧流体通道。
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公开(公告)号：US10295266B2
公开(公告)日：2019-05-21
申请号：US15279730
申请日：2016-09-29
申请人： Holtec International
摘要： A tubular heat exchanger having a plurality of shell-side and tube-side fluid passes. The heat exchanger includes an elongated cylindrical shell, a head coupled thereto, and a tube bundle positioned in the shell and supported in part by a tube sheet attached to the head. The shell of the heat exchanger may include a plurality of vertically stacked shell-side compartments each defining a shell-side pass. The head of the heat exchanger may have a plurality of tube-side compartments each defining a tube-side pass. A tube-side fluid enters the head and flows through the tube bundle progressively through a series of tube-side passes to heat the fluid with a shell-side fluid. Each shell-side pass contains multiple tube-side passes. The tube-side fluid may perform a plurality of horizontally arranged tube-side fluid passes in each vertically stacked shell-side fluid pass before cascading vertically to a next shell-side fluid pass.
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公开(公告)号：US11796255B2
公开(公告)日：2023-10-24
申请号：US17073976
申请日：2020-10-19
申请人： Holtec International
摘要： An air-cooled condenser system for steam condensing applications in a power plant Rankine cycle includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a frame-supported fan, inlet steam headers, outlet condensate headers, and tube bundle assemblies having extending between the headers. The tube bundle assemblies may be arranged in a V-shaped tube structure. A plurality of deflection limiter beams are arranged coplanar with the tube bundles. Top ends of each deflection limiter beam are slideably inserted in an associated floating end cap affixed to an upper tubesheet which moves vertically relative to the beams via thermal expansion/contraction concomitantly with the tubes. The deflection limiter beams provides guided restraint system for expansion/contraction of the tube bundles which prevents out of plane tube bowing.
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公开(公告)号：US11604030B2
公开(公告)日：2023-03-14
申请号：US16906382
申请日：2020-06-19
申请人： Holtec International
摘要： An air-cooled condenser system for steam condensing applications in a power plant Rankine cycle includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a frame-supported fan, inlet steam headers, outlet condensate headers, and tube bundle assemblies having extending between the headers. The tube bundle assemblies may be arranged in a V-shaped tube structure. A plurality of deflection limiter beams are arranged coplanar with the tube bundles. Top ends of each deflection limiter beam are slideably inserted in an associated floating end cap affixed to an upper tubesheet which moves vertically relative to the beams via thermal expansion/contraction concomitantly with the tubes. The deflection limiter beams provides guided restraint system for expansion/contraction of the tube bundles which prevents out of plane tube bowing.
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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
申请人： Holtec International
IPC分类号： F28B1/06
CPC分类号： F28B1/06 , F28B1/02 , F28B9/06 , F28D1/05366 , F28F9/0243 , F28F9/262
摘要： 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.
摘要翻译： 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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公开(公告)号：US10161683B2
公开(公告)日：2018-12-25
申请号：US15271818
申请日：2016-09-21
申请人： Holtec International
摘要： 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
申请人： Holtec International
摘要： 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
申请人： Holtec International
CPC分类号： F01K17/04 , F01K3/18 , F01K9/003 , F22G5/12 , F28B1/02 , F28B9/02 , F28F2250/06 , F28F2265/00
摘要： 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.
摘要翻译： 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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公开(公告)号：US12072151B2
公开(公告)日：2024-08-27
申请号：US17193536
申请日：2021-03-05
申请人： HOLTEC INTERNATIONAL
IPC分类号： F28B1/06
CPC分类号： F28B1/06
摘要： An induced draft air-cooled condenser for steam condensing applications includes a pair of inclined tube bundles defining a interior space therebetween in fluid communication with ambient air heated as it flows through the tube bundles. A fan supported above the interior space comprises rotatable fan blades disposed inside a cylindrical annular fan shroud. A drive mechanism operable to rotate the fan blades includes a motor operably coupled to the fan blades. The motor is supported inside the fan shroud and may be housed in a protective enclosure which may be insulated. A motor cooling system includes an air inlet duct fluidly coupled to ambient air outside the shroud and the enclosure. When the fan operates, cool ambient air is drawn via a vacuum formed by the fan through the duct to cool the motor. The air thus bypasses and is not heated by the tube bundles.
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公开(公告)号：US20200318909A1
公开(公告)日：2020-10-08
申请号：US16906382
申请日：2020-06-19
申请人： Holtec International
摘要： An air-cooled condenser system for steam condensing applications in a power plant Rankine cycle includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a frame-supported fan, inlet steam headers, outlet condensate headers, and tube bundle assemblies having extending between the headers. The tube bundle assemblies may be arranged in a V-shaped tube structure. A plurality of deflection limiter beams are arranged coplanar with the tube bundles. Top ends of each deflection limiter beam are slideably inserted in an associated floating end cap affixed to an upper tubesheet which moves vertically relative to the beams via thermal expansion/contraction concomitantly with the tubes. The deflection limiter beams provides guided restraint system for expansion/contraction of the tube bundles which prevents out of plane tube bowing.
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