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公开(公告)号：US07970094B2
公开(公告)日：2011-06-28
申请号：US11968502
申请日：2008-01-02
申请人： Kazuaki Kitou , Masao Chaki , Kouji Shiina , Motoo Aoyama , Masaya Ohtsuka , Masayuki Nagasawa , Minoru Okura , Seiji Nemoto , Yasuhiro Takahashi
发明人： Kazuaki Kitou , Masao Chaki , Kouji Shiina , Motoo Aoyama , Masaya Ohtsuka , Masayuki Nagasawa , Minoru Okura , Seiji Nemoto , Yasuhiro Takahashi
CPC分类号： G21C1/08 , G21D3/00 , G21Y2002/201 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A nuclear power plant and method of operation for augmenting a second reactor thermal power output in a second operation cycle to a level larger than a first reactor thermal power output in the previous operation cycle. The plant is equipped, for example, with a reactor; a steam loop comprising high and low pressure turbines; a condenser for condensing steam discharged therefrom the low pressure turbine; a feedwater heater for heating feedwater supplied from the condenser; and a feedwater loop for leading feedwater discharged from the feedwater heater to the reactor. The operation method includes decreasing a ratio of extraction steam which is led to the feedwater heater from a steam loop in the second operation cycle.
摘要翻译： 一种核电站和操作方法，用于在第二操作周期中将第二反应堆热功率输出增加到大于先前操作周期中的第一反应堆热功率输出的水平。 该工厂装备有例如反应堆; 包括高压和低压涡轮机的蒸汽回路; 用于冷凝从其排出的蒸汽的冷凝器; 用于加热从冷凝器供给的给水的给水加热器; 以及用于从给水加热器排放到反应器的引导给水的给水回路。 操作方法包括在第二操作循环中从蒸汽回路减少引导给水加热器的抽取蒸汽的比例。
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公开(公告)号：US20080181349A1
公开(公告)日：2008-07-31
申请号：US11968502
申请日：2008-01-02
申请人： Kazuaki Kitou , Masao Chaki , Kouji Shiina , Motoo Aoyama , Masaya Ohtsuka , Masayuki Nagasawa , Minoru Okura , Seiji Nemoto , Yasuhiro Takahashi
发明人： Kazuaki Kitou , Masao Chaki , Kouji Shiina , Motoo Aoyama , Masaya Ohtsuka , Masayuki Nagasawa , Minoru Okura , Seiji Nemoto , Yasuhiro Takahashi
IPC分类号： G21C7/32
CPC分类号： G21C1/08 , G21D3/00 , G21Y2002/201 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A nuclear power plant and method of operation for augmenting a second reactor thermal power output in a second operation cycle to a level larger than a first reactor thermal power output in the previous operation cycle. The plant is equipped, for example, with a reactor; a steam loop comprising high and low pressure turbines; a condenser for condensing steam discharged therefrom the low pressure turbine; a feedwater heater for heating feedwater supplied from the condenser; and a feedwater loop for leading feedwater discharged from the feedwater heater to the reactor. The operation method includes decreasing a ratio of extraction steam which is led to the feedwater heater from a steam loop in the second operation cycle.
摘要翻译： 一种核电站和操作方法，用于在第二操作周期中将第二反应堆热功率输出增加到大于先前操作周期中的第一反应堆热功率输出的水平。 该工厂装备有例如反应堆; 包括高压和低压涡轮机的蒸汽回路; 用于冷凝从其排出的蒸汽的冷凝器; 用于加热从冷凝器供给的给水的给水加热器; 以及用于从给水加热器排放到反应器的引导给水的给水回路。 操作方法包括在第二操作循环中从蒸汽回路减少引导给水加热器的抽取蒸汽的比例。
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公开(公告)号：US20060197638A1
公开(公告)日：2006-09-07
申请号：US11320972
申请日：2005-12-30
申请人： Shiro Takahashi , Kouji Shiina , Shoji Hayashi , Hideyo Saito , Minoru Masuda , Satoshi Kanno , Kenichi Nihei , Hiroaki Asakura
发明人： Shiro Takahashi , Kouji Shiina , Shoji Hayashi , Hideyo Saito , Minoru Masuda , Satoshi Kanno , Kenichi Nihei , Hiroaki Asakura
IPC分类号： H01F1/00
CPC分类号： C21D1/42 , C21D9/08 , C21D9/50 , C21D11/00 , Y02P10/253
摘要： In implementing an induction heating stress improvement (IHSI) method in a nuclear plant, cooling characteristic with respect to the inner surface of piping is improved by appropriate structure/layout of nozzles, and further, the cooling effect when applying IHSI to a real machine is verified by installing a thermometer, as well as air in the portion subjected to IHSI is removed by heating the piping prior to the execution of IHSI.
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公开(公告)号：US07997078B2
公开(公告)日：2011-08-16
申请号：US12574219
申请日：2009-10-06
申请人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
发明人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
摘要翻译： 在核电站中，核反应堆的第二操作循环中的热功率在第二操作周期之前的第一操作周期内从热功率上升至少一个操作周期。 在蒸汽系统中提取的蒸汽的比例相对于主蒸汽的流量被引入特定从高压汽轮机的中间点和出口抽出的给水加热器在第二操作 循环，从而在第二操作循环中使得从给水加热器排出的给水温度降低1℃至40℃。
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公开(公告)号：US20110162363A1
公开(公告)日：2011-07-07
申请号：US13046294
申请日：2011-03-11
申请人： Masao CHAKI , Kazuaki KITOU , Motoo AOYAMA , Masaya OOTSUKA , Kouji SHIINA
发明人： Masao CHAKI , Kazuaki KITOU , Motoo AOYAMA , Masaya OOTSUKA , Kouji SHIINA
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
摘要翻译： 在核电站中，核反应堆的第二操作循环中的热功率在第二操作周期之前的第一操作周期内从热功率上升至少一个操作周期。 在蒸汽系统中提取的蒸汽的比例相对于主蒸汽的流量被引入特定从高压汽轮机的中间点和出口抽出的给水加热器在第二操作 循环，从而在第二操作循环中使得从给水加热器排出的给水温度降低1℃至40℃。
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公开(公告)号：US20070000250A1
公开(公告)日：2007-01-04
申请号：US11340643
申请日：2006-01-27
申请人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
发明人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
IPC分类号： G21D5/00
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： A nuclear power plant and an operation method of the nuclear power plant, which can uprate plant power without greatly modifying the construction of plant equipment, while keeping a core's pressure loss characteristic, a safety margin, and a design margin in the transient state substantially the same as those before the power uprate. Thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam is reduced in the second operation cycle from that in the first operation cycle such that temperature of feedwater discharged from the feedwater heater lowers in the range of 1° C. to 40° C. in the second operation cycle.
摘要翻译： 一个核电站和核电厂的运行方式，可以在不大幅度修改工厂设备的情况下，提高设备功率，同时保持核心的压力损失特性，安全裕量和瞬态状态下的设计余量 与上电前相同。 核反应堆的第二操作循环中的热功率在第二操作循环之前的第一操作循环中从热功率升高至少一个操作周期。 在第二操作循环中，相对于主蒸汽的流量，从蒸汽系统提取并被引入特定从高压涡轮的中间点和出口抽出的给水加热器的一部分蒸汽减少 从第一操作循环中的过程中，使得从给水加热器排出的给水温度在第二操作循环中在1℃至40℃的范围内降低。
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公开(公告)号：US08514998B2
公开(公告)日：2013-08-20
申请号：US11320972
申请日：2005-12-30
申请人： Shiro Takahashi , Kouji Shiina , Shoji Hayashi , Hideyo Saito , Minoru Masuda , Satoshi Kanno , Kenichi Nihei , Hiroaki Asakura
发明人： Shiro Takahashi , Kouji Shiina , Shoji Hayashi , Hideyo Saito , Minoru Masuda , Satoshi Kanno , Kenichi Nihei , Hiroaki Asakura
IPC分类号： G21C17/032 , G21C17/022
CPC分类号： C21D1/42 , C21D9/08 , C21D9/50 , C21D11/00 , Y02P10/253
摘要： In implementing an induction heating stress improvement (IHSI) method in a nuclear plant, cooling characteristic with respect to the inner surface of piping is improved by appropriate structure/layout of nozzles, and further, the cooling effect when applying IHSI to a real machine is verified by installing a thermometer, as well as air in the portion subjected to IHSI is removed by heating the piping prior to the execution of IHSI.
摘要翻译： 在核电站实施感应加热应力改善（IHSI）方法时，通过适当的喷嘴结构/布局改善了管道内表面的冷却特性，此外，将IHSI应用于真实机器时的冷却效果是 通过安装温度计进行验证，以及通过在执行IHSI之前加热管道来除去经受IHSI的部分中的空气。
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公开(公告)号：US08291704B2
公开(公告)日：2012-10-23
申请号：US13046329
申请日：2011-03-11
申请人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
发明人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
摘要翻译： 在核电站中，核反应堆的第二操作循环中的热功率在第二操作周期之前的第一操作周期内从热功率上升至少一个操作周期。 在蒸汽系统中提取的蒸汽的比例相对于主蒸汽的流量被引入特定从高压汽轮机的中间点和出口抽出的给水加热器在第二操作 循环，从而在第二操作循环中使得从给水加热器排出的给水温度降低1℃至40℃。
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公开(公告)号：US20110162364A1
公开(公告)日：2011-07-07
申请号：US13046329
申请日：2011-03-11
申请人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
发明人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
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公开(公告)号：US07614233B2
公开(公告)日：2009-11-10
申请号：US11340643
申请日：2006-01-27
申请人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
发明人： Masao Chaki , Kazuaki Kitou , Motoo Aoyama , Masaya Ootsuka , Kouji Shiina
IPC分类号： G21D5/00
CPC分类号： G21C1/084 , G21D1/02 , G21D3/00 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/40 , Y02E30/31 , Y02E30/39
摘要： In a nuclear power plant, thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle by at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam, is reduced in the second operation cycle from that in the first operation cycle such that the temperature of feedwater discharged from the feedwater heater is lowered by 1° C. to 40° C. in the second operation cycle.
摘要翻译： 在核电站中，核反应堆的第二操作循环中的热功率在第二操作周期之前的第一操作周期内从热功率上升至少一个操作周期。 在蒸汽系统中提取的蒸汽的比例相对于主蒸汽的流量被引入特定从高压汽轮机的中间点和出口抽出的给水加热器在第二操作 循环，从而在第二操作循环中使得从给水加热器排出的给水温度降低1℃至40℃。
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