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41.发明公开PRESSURIZED WATER REACTOR WITH UPPER VESSEL SECTION PROVIDING BOTH PRESSURE AND FLOW CONTROL 有权与上锅炉部件压水反应堆用于产生压力和流量控制
公开(公告)号：EP2710608A1
公开(公告)日：2014-03-26
申请号：EP12785072.5
申请日：2012-05-17
发明人： SHARGOTS, Scott, J.
IPC分类号： G21C19/28
CPC分类号： F04D7/08 , F04D29/606 , G21C1/086 , G21C1/32 , G21C15/243 , G21C19/207 , G21C19/28 , G21D1/006 , Y02E30/32 , Y10T29/49229
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 internal 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 internal pressurizer. A central riser may be disposed concentrically inside the pressure vessel, and the RCP impels primary coolant downward into a downcomer annulus between the central riser and the pressure vessel. A steam generator may be disposed in the downcomer annulus and spaced apart from with the impeller by an outlet plenum. A manway may access the outlet plenum so tube plugging can be performed on the steam generator via access through the manway without removing the RCP.
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42.发明授权Methods for operating and methods for reducing post-shutdown radiation levels of nuclear reactors 有权操作核反应堆和方法，用于降低其关闭辐射水平后本的方法
公开(公告)号：EP1939891B1
公开(公告)日：2013-03-27
申请号：EP07123684.8
申请日：2007-12-19
CPC分类号： G21C19/28 , G21F9/28 , G21Y2002/103 , G21Y2002/501 , G21Y2004/20 , G21Y2004/40
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43.发明公开Methods for operating and methods for reducing post-shutdown radiation levels of nuclear reactors 有权操作核反应堆和方法，用于降低其关闭辐射水平后本的方法
公开(公告)号：EP1939891A3
公开(公告)日：2010-07-14
申请号：EP07123684.8
申请日：2007-12-19
CPC分类号： G21C19/28 , G21F9/28 , G21Y2002/103 , G21Y2002/501 , G21Y2004/20 , G21Y2004/40
摘要： A method for operating a nuclear reactor may include adding one or more chemicals to water in the reactor prior to reactor shutdown, during reactor shutdown, or prior to and during reactor shutdown. The one or more chemicals may trigger release of one or more radioactive substances from at least one out-of-core surface of the reactor into the reactor water. A method for reducing post-shutdown radiation levels of a nuclear reactor may include adding one or more chemicals to water in the reactor prior to reactor shutdown, during reactor shutdown, or prior to and during reactor shutdown. The one or more chemicals may include, for example, one or more metals, metal ions, metal compounds, metals and metal ions, metals and metal compounds, metal ions and metal compounds, or metals, metal ions, and metal compounds.
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44.发明公开Chemical injection system and chemical delivery process/method of injecting into an operating power reactor 有权注入到反应器操作的动力的化学注射系统和化学品输送过程/方法
公开(公告)号：EP2073217A1
公开(公告)日：2009-06-24
申请号：EP08171242.4
申请日：2008-12-10
发明人： Tran, Luong Carn , Diaz, Thomas P.US , Hettiarachchi, Samson , Shu, Paul Y. , Siegwarth, David P.
IPC分类号： G21C19/28
CPC分类号： G21C17/0225 , G21C19/28
摘要： An injection system 10 designed to deliver a chemical solution into a reactor through feedwater system taps 22 during normal operating condition of a power reactor is disclosed. The process of delivery is via positive displacement pumps 12 and 14. Injection of chemical is in a concentrated solution form, which is internally diluted by the system 10 prior to discharging from the skid. The injection system 10 minimizes chemical loss due to deposition on the transit line 15, enables a higher concentrated solution to be used as the injectant, eliminates the time consuming laborious process of chemical dilution, raises chemical solution to the pressure required for injection, prevents solid precipitations out of solution at the injection pump head through the use of a flush solution, and deposits fresh chemical on new crack surfaces that develop during a power reactor start-up, shutdown and operation.
摘要翻译： 旨在提供化学溶液进入通过给水系统中的反应器的喷射系统10的电力反应器盘的游离缺失正常操作条件期间抽头22。 输送的过程中是通过正排量泵12和14注入化学的是在浓溶液的形式，所有这些都在内部由系统从滑板10排出之前稀释。 注射系统10最小化化学损失由于在交通线路15沉积，使得能够使用作为注入剂更高的浓溶液，消除了耗时的化学稀释的费力的过程中，提出了化学溶液注射所需要的压力，防止固体 沉淀出的在通过使用冲洗溶液的注射泵头部溶液中，并沉积在新裂纹表面新鲜化学做了动力反应堆启动，关闭和运行过程中发展。
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公开(公告)号：EP0833962B1
公开(公告)日：2003-03-19
申请号：EP97926366.2
申请日：1997-04-22
IPC分类号： C23F11/08
CPC分类号： G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/304 , G21Y2004/40 , Y10S376/90
摘要： A method for reducing corrosion of metal components in a water cooled nuclear reactor. A compound containing a platinum group metal, e.g. palladium, is injected alone in small amounts into the high temperature water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release atoms of the metal in an amount sufficient when present on the metal components to reduce the electrochemical corrosion potential of the metal components to a level below the critical potential to protect against intergranular stress corrosion cracking.
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公开(公告)号：EP1138046A1
公开(公告)日：2001-10-04
申请号：EP99974114.3
申请日：1999-10-12
发明人： MARBLE, William, Joel , PETERSON, George, Ervin , RUIZ, Carl, Phillip , ROBINSON, Randall, Norman
IPC分类号： G21C17/022 , G21C19/28
CPC分类号： G21F9/28 , G21C17/022 , G21C19/28 , G21Y2002/501
摘要： Method effecting decontamination of metal components carrying an oxide layer in a nuclear powered water cooled reactor wherein a low concentration of zinc ions is introduced into the water to cause loosening and removal of the oxide layer from the metal surface.
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47.发明公开
公开(公告)号：EP0852800A1
公开(公告)日：1998-07-15
申请号：EP96932539.0
申请日：1996-09-16
发明人： PUTHAWALA, Anwer , STÜNKEL, Helmut
CPC分类号： G21C17/022 , G21C19/28 , G21Y2002/204 , G21Y2004/403
摘要： The invention pertains to a nuclear reactor with a cooling circulation for a liquid coolant, in particular water, into which hydrogen is to be introduced. The cooling circulation preferably comprises a volume equalisation container (6) for the coolant and at least one high-pressure pump (60, 62) which injects the coolant drawn from the cooling circulation back into the same circulation. The hydrogen injection point (38) is in the suction line (32) on the suction side of the high-pressure pump (60, 62). On the pressure side of the high-pressure pump (60, 62), a measurement line (82) is connected to the volume compensation container (6) or to a drainage system (94). A device (58) for measuring the hydrogen content of the coolant is incorporated in the said line (82). The measuring device (58) is connected via a regulating device (52) to a control valve (42) by which the hydrogen supply to the injection point (38) can be controlled. The gas-injection system ensures a clear and precisely maintained hydrogen content in the coolant.
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公开(公告)号：EP0833962A1
公开(公告)日：1998-04-08
申请号：EP97926366.0
申请日：1997-04-22
CPC分类号： G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/304 , G21Y2004/40 , Y10S376/90
摘要： A method for reducing corrosion of metal components in a water cooled nuclear reactor. A compound containing a platinum group metal, e.g. palladium, is injected alone in small amounts into the high temperature water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release atoms of the metal in an amount sufficient when present on the metal components to reduce the electrochemical corrosion potential of the metal components to a level below the critical potential to protect against intergranular stress corrosion cracking.
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49.发明授权Minimization of radioactive material deposition in water-cooled nuclear reactors 失效放射性物质沉积在水冷核反应堆中的最小化
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50.发明公开Minimization of radioactive material deposition in water-cooled nuclear reactors 失效放射性物质沉积在水冷核反应堆中的最小化
公开(公告)号：EP0281672A3
公开(公告)日：1988-10-05
申请号：EP87116335
申请日：1987-11-05
IPC分类号： G21F09/00
CPC分类号： G21F9/001 , G21C19/28 , G21D1/003 , Y02E30/40 , Y10S376/904
摘要： In water-cooled nuclear reactors where zinc is added to the water to remove or lessen the accumulation of radioactive cobalt, radioactivity arising from the zinc itself as a result of neutron capture is lessened or eliminated entirely by modifying the isotopic composition of the zinc prior to its injection into the system. The modification of the isotopic composition consists of lowering the proportion of ⁶⁴Zn or removing this isotope entirely.
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