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1.发明授权公开(公告)号：US11837370B2
公开(公告)日：2023-12-05
申请号：US17145743
申请日：2021-01-11
申请人： BWXT mPower, Inc.
发明人： Scott J. Shargots
CPC分类号： G21C1/32 , F04D13/10 , G21C1/086 , G21C1/09 , G21C15/24 , G21C15/243 , G21C21/00 , G21D1/04 , Y02E30/30 , Y10T29/49236 , Y10T29/49245
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：US20170154694A1
公开(公告)日：2017-06-01
申请号：US15287890
申请日：2016-10-07
发明人： Yoon Jae CHOI
IPC分类号： G21D1/00
CPC分类号： G21D1/00 , G21C1/09 , G21Y2002/50 , G21Y2004/40 , Y02E30/40
摘要： A pressurizer spray apparatus with half-circle type nozzles, which is provided in a pressurizer of a pressurized light-water reactor type nuclear power plant, includes a spray inlet pipe penetrating the pressurizer from outside to inside and having a hollow tube shape, a spray ring arranged inside the pressurizer and having a ring shape and a hollow tube shape, a connecting pipe connecting the spray ring and the spray inlet pipe and having a hollow tube shape, and a spray nozzle provided on an outer circumferential surface of the spray ring and capable of discharging a low-temperature coolant into the pressurizer.
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3.发明授权公开(公告)号：US09478317B2
公开(公告)日：2016-10-25
申请号：US13476191
申请日：2012-05-21
摘要： An integral pressurized light water reactor having most of the components of a primary side of a pressurized water reactor nuclear steam supply system housed in a single pressure vessel with a pressurizer separated from the remaining reactor system by a surge separator having multiple layers of separated steel plates with a number of concentric baffles extending therebetween. A circuitous flow path is provided through and between the plates and concentric baffles and a relatively stagnant pool of coolant is maintained within an innermost zone between the plates to provide thermal isolation.
摘要翻译： 一体式加压轻水反应器，其具有容纳在具有加压器的单个压力容器中的加压水反应堆核蒸汽供应系统的初级侧的大部分组分，其具有通过具有多层分离钢板的浪涌隔离器与剩余反应器系统分离 具有在其间延伸的多个同心挡板。 提供通过板和同心挡板之间的迂回流动路径，并且相对滞留的冷却剂池被保持在板之间的最内区域中以提供热隔离。
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公开(公告)号：US20160125962A1
公开(公告)日：2016-05-05
申请号：US14894956
申请日：2014-05-27
发明人： Frédéric Rey
CPC分类号： G21C1/09 , F16K5/0605 , G21C1/02 , G21C19/207 , G21C19/31 , Y02E30/34
摘要： This invention relates to a system for regulating a liquid in a circuit, with the system comprising: a plug valve comprising at least one inlet and one outlet, the plug comprising an internal passage through which is intended to pass the liquid flowing from the inlet to the outlet of the valve when the valve is open at least partially, an expansion reservoir in communication with the liquid flowing in the circuit and intended to contain liquid and a compensating gas, characterised in that the plug comprises at least partially an expansion channel which has at least one lateral opening located on a lateral face of the plug and which is conformed to provide a permanent communication between said lateral opening and the expansion reservoir, the valve being conformed in such a way that: at least when the valve is closed: the lateral opening is in direct communication with the liquid coming from the inlet or from the outlet of the valve, when the valve is open at least partially, the lateral opening cooperates with an inner wall integral with a body of the valve in such a way as to form a conduit in communication on the one hand with the expansion reservoir and on the other hand with the internal passage. The invention also relates to a circuit integrating this system as well as a use of this system.
摘要翻译： 本发明涉及一种用于调节回路中的液体的系统，该系统包括：一个包括至少一个入口和一个出口的塞阀，塞子包括内部通道，通过该内部通道将从入口流出的液体通过 当所述阀至少部分地打开时所述阀的出口，与在所述回路中流动的液体连通并且旨在容纳液体和补偿气体的膨胀储存器，其特征在于，所述插塞至少部分地包括膨胀通道，所述膨胀通道具有 至少一个侧向开口，其位于所述插塞的侧面上并且被配合以在所述侧向开口和所述膨胀容器之间提供永久连通，所述阀符合以下结构：至少当所述阀关闭时： 横向开口与来自阀门的入口或出口的液体直接连通，当阀门至少部分打开时， l开口与与阀体一体的内壁配合，以形成一方面与膨胀容器连通的管道，另一方面形成与内部通道连通的管道。 本发明还涉及集成该系统的电路以及该系统的使用。
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5.发明授权公开(公告)号：US09169527B2
公开(公告)日：2015-10-27
申请号：US13639241
申请日：2011-04-06
CPC分类号： C21D1/09 , C21D1/10 , C21D7/06 , C21D9/0068 , C21D2201/03 , G21C1/09 , G21C17/017 , H05B3/42 , Y02P10/253
摘要： A treatment of a heater tube intended to be used in a pressurizer of the primary cooling system of a nuclear reactor. In particular, the heater tube comprises a heater housed in a substantially cylindrical sheath. The material of which this sheath is made is a work-hardened austenitic stainless steel. In particular, the external surface of the sheath is liable to undergo a stress corrosion during use of the heatertube. The method includes a heat treatment step, preferably using induction heating, in which the external surface of the sheath is heat-treated so as to recrystallize the material of the sheath at least on the surface thereof.
摘要翻译： 一种旨在用于核反应堆的一次冷却系统的加压器的加热管的处理。 特别地，加热器管包括容纳在基本上圆柱形护套中的加热器。 制成这种护套的材料是加工硬化的奥氏体不锈钢。 特别地，护套的外表面在加热管的使用期间容易发生应力腐蚀。 该方法包括优选使用感应加热的热处理步骤，其中鞘的外表面至少在其表面上进行热处理，以使壳的材料再结晶。
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公开(公告)号：US20150162105A1
公开(公告)日：2015-06-11
申请号：US14350946
申请日：2012-10-12
CPC分类号： G21C15/18 , F22B35/004 , G21C1/09 , G21C1/10 , G21C1/12 , G21C9/00 , G21C15/253 , G21C15/28 , G21D1/006 , G21D1/04 , G21D3/04 , G21D3/08 , Y02E30/33
摘要： A high temperature gas cooled reactor steam generation system (1) includes a nuclear reactor (2) that has helium gas as a primary coolant and heats the primary coolant by heat generated by a nuclear reaction that decelerates neutrons by a graphite block, a steam generator (3) that has water as a secondary coolant and heats the secondary coolant by the primary coolant via the nuclear reactor (2) to generate steam, a steam turbine (4) that is operated by the steam from the steam generator (3), and a generator (5) that generates electricity according to an operation of the steam turbine (4). Moreover, the system (1) includes pressure adjustment means for setting a pressure of the secondary coolant in the steam generator (3) to be lower than a pressure of the primary coolant in the nuclear reactor (2).
摘要翻译： 高温气体冷却反应器蒸汽发生系统（1）包括具有氦气作为主要冷却剂的核反应堆（2），并通过由石墨块减速中子产生的热量加热主冷却剂，蒸汽发生器 （3），其具有作为二次冷却剂的水，并且通过所述核反应堆（2）通过所述主冷却剂加热所述二次冷却剂以产生蒸汽;蒸汽涡轮机（4），其由来自所述蒸汽发生器（3）的蒸汽操作， 以及根据所述蒸汽轮机（4）的动作发电的发电机（5）。 此外，系统（1）包括用于将蒸汽发生器（3）中的二次冷却剂的压力设定为低于核反应堆（2）中的一次冷却剂的压力的压力调节装置。
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7.发明申请公开(公告)号：US20140047692A1
公开(公告)日：2014-02-20
申请号：US14002818
申请日：2012-03-05
申请人： Jerome Ambacher , Brice Massazza , Denis Pollier
发明人： Jerome Ambacher , Brice Massazza , Denis Pollier
IPC分类号： F22B37/58
CPC分类号： F22B37/58 , F22B1/025 , F22B37/003 , G21C1/09 , G21C17/017 , G21C19/02 , G21C19/207 , Y02E30/40 , Y10T29/49815 , Y10T29/53987
摘要： A method for working on a defective heating element of a pressuriser comprising a tank lying flat along a longitudinal axis and elongate heating elements extending within the tank, and at least one spacer plate through which the heating elements pass and which is capable of maintaining a transverse spacing between the heating elements is provided. The method includes cutting at least one spacer plate around the heating element so as to detach said heating element from said spacer plate, and then extracting the heating element from the tank in one single piece.
摘要翻译： 一种用于对加压器的有缺陷的加热元件进行加工的方法，该加压器包括沿着纵向轴线平坦放置的槽和在罐内延伸的细长的加热元件，以及加热元件通过的至少一个间隔板，并且能够保持横向 提供加热元件之间的间隔。 该方法包括在加热元件周围切割至少一个间隔板，以便将所述加热元件从所述间隔板上分离，然后以一个单件的方式从罐中提取加热元件。
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8.发明申请公开(公告)号：US20130308740A1
公开(公告)日：2013-11-21
申请号：US13476191
申请日：2012-05-21
IPC分类号： G21C15/00
摘要： An integral pressurized light water reactor having most of the components of a primary side of a pressurized water reactor nuclear steam supply system housed in a single pressure vessel with a pressurizer separated from the remaining reactor system by a surge separator having multiple layers of separated steel plates with a number of concentric baffles extending therebetween. A circuitous flow path is provided through and between the plates and concentric baffles and a relatively stagnant pool of coolant is maintained within an innermost zone between the plates to provide thermal isolation.
摘要翻译： 一体式加压轻水反应器，其具有容纳在具有加压器的单个压力容器中的加压水反应堆核蒸汽供应系统的初级侧的大部分组分，其具有通过具有多层分离钢板的浪涌隔离器与剩余的反应器系统分离 具有在其间延伸的多个同心挡板。 提供通过板和同心挡板之间的迂回流动路径，并且相对滞留的冷却剂池被保持在板之间的最内区域中以提供热隔离。
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9.发明授权Reactor power control apparatus of natural circulation reactor, generation system of natural circulation reactor and method for controlling reactor power of natural circulation reactor 失效自然循环反应堆电抗器功率控制装置，自然循环反应器发电系统及自然循环反应堆反应堆功率控制方法公开(公告)号：US08526562B2
公开(公告)日：2013-09-03
申请号：US11678714
申请日：2007-02-26
申请人： Kimiko Isono , Shin Hasegawa
发明人： Kimiko Isono , Shin Hasegawa
IPC分类号： G21C7/32
CPC分类号： G21C1/084 , G21C1/09 , G21C7/00 , G21D3/12 , G21Y2002/207 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In the present invention, a reactor power control apparatus of a natural circulation reactor comprises a power control apparatus for controlling reactor power and a pressure control apparatus for controlling reactor pressure. A power adjustment demand signal S4 is input from the power control apparatus into the pressure control apparatus. The pressure control apparatus controls degree of opening of a inlet port steam control valve provided in a moisture separation heater that is connected to a low-pressure turbine, based on the power adjustment demand signal S4.A reactor power control apparatus of the natural circulation reactor can suppress reactor power variation and obtain stable power.
摘要翻译： 在本发明中，自然循环反应堆的电抗器功率控制装置包括用于控制电抗器功率的功率控制装置和用于控制反应堆压力的压力控制装置。 功率调节要求信号S4从功率控制装置输入压力控制装置。 压力控制装置基于功率调节要求信号S4，控制设置在与低压涡轮机连接的湿度分离加热器中的入口蒸汽控制阀的开度。 自然循环反应器的电抗器功率控制装置可以抑制电抗器功率变化并获得稳定的功率。
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10.发明申请METHOD FOR FILLING WATER INTO A MAIN CIRCUIT OF A NUCLEAR REACTOR, AND CONNECTION DEVICE FOR IMPLEMENTING SAID METHOD 有权将水填充到核反应堆的主电路中的方法以及用于实施所述方法的连接装置公开(公告)号：US20130208845A1
公开(公告)日：2013-08-15
申请号：US13883140
申请日：2011-10-31
申请人： Christophe Legendre
发明人： Christophe Legendre
IPC分类号： G21C19/28
CPC分类号： G21C19/28 , G21C1/09 , G21C13/022 , G21D1/02 , Y02E30/40
摘要： The method for filling water into and changing the air of a main circuit of a water-cooled nuclear reactor includes a step of placing a connection and fluid isolation device which is connected to a hot leg of each cooling loop of the main circuit so as to substantially insulate, from inside the vessel, the assembly of hot legs. The method also includes a step of injecting water through an injection circuit on at least one hot leg until each cooling loop is filled with water having changed the air from a steam generator and until the water level in the vessel reaches above the side openings of the vessel that correspond to the loops, after which the connecting device is taken out of the vessel. The connecting device is capable of using telescopic connection elements.
摘要翻译： 用于将水填充到水冷核反应堆的主回路的空气中并将其更换的方法包括将连接和流体隔离装置放置在与主电路的每个冷却回路的热腿连接的步骤，以便 从容器内部大体上绝热地组装热腿。 该方法还包括通过注射回路在至少一个热腿上注入水的步骤，直到每个冷却回路充满了从蒸汽发生器改变空气的水直到容器内的水位达到 对应于回路的容器，之后将连接装置从容器中取出。 连接装置能够使用伸缩连接元件。
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