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公开(公告)号：US3746029A
公开(公告)日：1973-07-17
申请号：US3746029D
申请日：1971-08-23
申请人： SIEMENS AG
发明人： RISSLER P
CPC分类号： G21C9/012 , Y02E30/40 , Y10T137/2012 , Y10T137/7323
摘要： Release device for flooding spaces subject to pressure includes a water supply tank having a wall formed with an opening therein and adapted to contain a supply of water up to a given level below the top of the wall, at least one hinged flap extending across the opening for closing the opening and hinged at the upper end thereof to the wall, the flap being openable toward the outside of the tank, tow hook means secured at one end thereof to the lower end of the hinged flap and at the other end thereof in a recess formed in the wall, the wall being formed with a chamber located above the hinged flap and communicating with the interior of the tank, the chamber being adapted to contain water up to the given level and air above the given level and including a partition extending from the top of the wall to a location below the given water level, float means disposed in the chamber so as to float at the given level on water contained in the chamber, and a pull rope connecting the float means and the tow hook for lifting the tow hook to open the hinged flap when a pressure increase occurs in the air above the water in the interior of the supply tank causing the given level of water in the interior of the tank to drop and the given level of water in the chamber to rise.
摘要翻译： 用于经受压力的溢流空间的释放装置包括供水箱，其具有在其中形成有开口的壁，并且适于在水平面的顶部下方容纳高达给定水位的水，至少一个延伸穿过开口 为了封闭开口并在其上端铰接到壁上，该挡板能够朝向罐的外部打开，牵引钩装置在其一端固定到铰接翼片的下端，并在其另一端处于 形成在壁中的凹部，壁形成有位于铰链翼片上方并与罐内连通的腔室，该腔室适于容纳达到给定水平的水和高于给定水平面的空气，并且包括延伸 从壁的顶部到低于给定水位的位置，浮动装置设置在室中，以便在容纳在室中的水上浮动到给定的水平，并且连接浮子的拉绳 以及当在供应罐内部的水上方的空气中发生压力增加时，提升牵引钩以打开铰链翼片的牵引钩，导致罐内部的给定水位下降，给定的 水箱内的水位上升。
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公开(公告)号：US3649451A
公开(公告)日：1972-03-14
申请号：US3649451D
申请日：1968-09-23
摘要： A nuclear reactor containment system wherein a nuclear reactor vessel is supported within a normally dry well and means are provided for flooding the dry well to protect the nuclear core against melt down in the event of a vessel failure. A first quantity of coolant fluid, for example, borated water, is provided to fill the dry well to a level beneath the vessel, and a second quantity of coolant fluid, which may be obtained from condensed primary coolant that had been lost through a rupture in the primary system, is utilized to fill the dry well to a sufficient level to protect the nuclear core.
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公开(公告)号：US11289214B2
公开(公告)日：2022-03-29
申请号：US16288494
申请日：2019-02-28
发明人： Wayne Marquino , Jun Yang , Md Almagir , David L. Major
IPC分类号： G21C9/012 , F28B1/00 , F28B7/00 , F28B9/10 , G21C9/06 , G21C15/22 , G21C15/12 , G21C15/18 , F28D1/053 , F22B35/00 , F28B9/00 , F28B11/00 , F28D21/00 , F28F9/02
摘要： A passive containment cooling system (PCCS) condenser, for reducing some non-condensable gases in the PCCS, includes a first and a second stage condenser that each include channels in fluid communication between an inlet and an outlet header. The inlet header of the first stage condenser is configured to receive a fluid mixture through a first inlet opening. The channels are configured to condense water from the fluid mixture flowing through the channels from the inlet header to the outlet header, respectively, of the first and second stage condenser. The PCCS condenser includes a catalyst in at least one of the outlet header of the first stage condenser or the inlet header of the second stage condenser. The catalyst catalyzes a reaction for forming water from hydrogen and oxygen in the fluid mixture. The outlet header of the second stage condenser is in fluid communication with a combined vent-and-drain line.
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公开(公告)号：US10784003B2
公开(公告)日：2020-09-22
申请号：US15821929
申请日：2017-11-24
发明人： Liping Deng
摘要： A containment cooling apparatus includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank via a first communicating pipe, wherein the spray header is disposed on an outside of the containment for spraying cooling water to an outer wall of the containment; a bell shaped shield covering the containment, wherein the cooling water tank is disposed on a top portion of the shield; a space formed between an inner wall of the shield and the outer wall of the containment, wherein the spray header is disposed in the space; an exhaust hole disposed on the top portion of the shield; and a water separator disposed in the exhaust hole and/or the space. The containment cooling apparatus has higher utilization of coolant.
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公开(公告)号：US10755825B2
公开(公告)日：2020-08-25
申请号：US16176716
申请日：2018-10-31
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.
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公开(公告)号：US10726961B2
公开(公告)日：2020-07-28
申请号：US15689724
申请日：2017-08-29
申请人： BWXT mPower, Inc.
发明人： Thomas G. Graham
摘要： In conjunction with a pressurized water reactor (PWR) and a pressurizer configured to control pressure in the reactor pressure vessel, a decay heat removal system comprises a pressurized passive condenser, a turbine-driven pump connected to suction water from at least one water source into the reactor pressure vessel; and steam piping configured to deliver steam from the pressurizer to the turbine to operate the pump and to discharge the delivered steam into the pressurized passive condenser. The pump and turbine may be mounted on a common shaft via which the turbine drives the pump. The at least one water source may include a refueling water storage tank (RWST) and/or the pressurized passive condenser. A pressurizer power operated relief valve may control discharge of a portion of the delivered steam bypassing the turbine into the pressurized passive condenser to control pressure in the pressurizer.
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公开(公告)号：US10726959B2
公开(公告)日：2020-07-28
申请号：US15099398
申请日：2016-04-14
发明人： Kenichi Katono , Masao Chaki , Kazuaki Kito
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.
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