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公开(公告)号：US20240050893A1
公开(公告)日：2024-02-15
申请号：US18196774
申请日：2023-05-12
发明人： Sohei FUKUI , Yoichi WADA , Kazuo TOMINAGA , Motoi TANAKA , Masaaki TANAKA , Daiki NUNOKAWA
CPC分类号： B01D53/78 , B01D53/70 , B01D53/75 , B01D53/1487 , B01D53/1493 , B01D2257/202 , B01D2257/2068 , B01D2252/103
摘要： A filtered containment venting system includes a filtered containment venting tank having: an organic iodine remover for collecting organic iodine; scrubbing water for collecting inorganic iodine; and an alkalizing agent for adding an action of buffering a pH value to the scrubbing water.
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公开(公告)号：US20240233967A1
公开(公告)日：2024-07-11
申请号：US18616833
申请日：2024-03-26
发明人： Sohei FUKUI , Motoi TANAKA , Masaaki TANAKA , Fumio TOTSUKA , Tomoharu HASHIMOTO , Kazuo TOMINAGA
CPC分类号： G21C9/004 , G21C13/022 , G21F9/02 , G21F9/06
摘要： An organic iodine trapping apparatus and method efficiently traps organic iodine in a nuclear reactor container vessel. A liquid vessel contains a non-volatile liquid (e.g., ionic liquid or interfacial active agent solution) capable of decomposing organic iodine. An introduction pipe introduces a fluid containing organic iodine in the nuclear reactor container vessel to the non-volatile liquid. The non-volatile liquid is heated by heat in the nuclear reactor container vessel or reaction heat of the fluid in the nuclear reactor container vessel. Then, the trapping apparatus decomposes and traps the organic iodine. The organic iodine trapping method includes heating a non-volatile liquid capable of decomposing organic iodine by heat in the nuclear reactor container vessel or reaction heat of fluid in the nuclear reactor container vessel; making the fluid containing organic iodine pass through the heated non-volatile liquid; and decomposing and trapping the organic iodine in the non-volatile liquid.
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公开(公告)号：US20230032273A1
公开(公告)日：2023-02-02
申请号：US17787105
申请日：2020-12-01
发明人： Sohei FUKUI , Motoi TANAKA , Kazuo TOMINAGA , Masaaki TANAKA , Fumio TOTSUKA , Tomoharu HASHIMOTO
摘要： An organic iodine remover is a remover for removing organic iodine and is a substance composed of a cation and an anion, and the cation (for example, a phosphonium cation, an ammonium cation, or a sulfonium cation) has a molecular structure in which an electron donating group (for example, a phosphino group, an amino group, a sulfanyl group, a hydroxy group, or an alkoxy group) is bonded to a phosphorus atom, a nitrogen atom or a sulfur atom. An organic iodine removing apparatus includes: a vessel into which the organic iodine remover for removing the organic iodine is charged; and introduction pipes through which a fluid containing organic iodine is introduced into the organic iodine remover.
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公开(公告)号：US20220139586A1
公开(公告)日：2022-05-05
申请号：US17433271
申请日：2020-01-21
发明人： Sohei FUKUI , Motoi TANAKA , Masaaki TANAKA , Fumio TOTSUKA , Tomoharu HASHIMOTO , Kazuo TOMINAGA
摘要： As an organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor, an organic agent (for example, an ionic liquid, an interfacial active agent, a quaternary salt, or a phase transfer catalyst) having a function of dissolving and decomposing the organic iodine and retaining iodine is used. The organic iodine remover is a substance composed of a cation and an anion. The organic iodine remover is, in particular, an organic iodine remover in which, in a structure of the cation of the organic agent, carbon or oxygen is bonded to, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, the number of carbon chains is 2 or more, and an anionic structure is configured with a substance with high nucleophilicity. By using such an organic agent, the organic iodine is removed with an efficiency of 99% or more.
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公开(公告)号：US20220139587A1
公开(公告)日：2022-05-05
申请号：US17512591
申请日：2021-10-27
发明人： Sohei FUKUI , Kazushige ISHIDA , Tsuyoshi ITO , Kazuo TOMINAGA , Motoi TANAKA , Masaaki TANAKA
IPC分类号： G21F9/02 , B01D53/70 , B01D53/78 , G21C19/303
摘要： To provide an iodine trapping apparatus capable of trapping organic iodine in a wide temperature range with high efficiency. The iodine trapping apparatus includes a first trapping agent 2 capable of trapping organic iodine in a gas in a nuclear power structure main body. The first trapping agent 2 contains a generating and trapping component which generates an iodide ion (I−) from organic iodine (RI) and traps the generated iodide ion, and a generating component which is different from the generating and trapping component, generates an iodide ion from the organic iodine at least at 100° C. to 130° C., and traps the generated iodide ion in the generating and trapping component.
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公开(公告)号：US20130195238A1
公开(公告)日：2013-08-01
申请号：US13753629
申请日：2013-01-30
发明人： Shinya OHMORI , Koichi KUROSAWA , Masaaki TANAKA , Takanori SATOH
IPC分类号： G21C19/00
CPC分类号： G21C19/00 , G21C13/024 , G21C19/02 , G21C19/207 , G21Y2004/50
摘要： A shroud support of a BWR includes a shroud support cylinder, shroud support legs welded to a bottom of a reactor pressure vessel (RPV) and a shroud support cylinder, and an annular shroud support plate disposed between the RPV and the shroud support cylinder and welded to the RPV and the shroud support cylinder. A support apparatus is set a CRD housings installed to the bottom of the RPV. A rail guide member horizontally set to the support apparatus reaches directly below the shroud support plate through an opening between the shroud support legs. A bent rail is set on the rail guide member. The bent rail setting a repair device is pushed out along the rail guide member toward the RPV through the opening portion by the rail push-out apparatus set on the support apparatus. The bent rail is spread at directly below the shroud support plate.
摘要翻译： BWR的护罩支撑件包括护罩支撑筒，焊接到反应堆压力容器（RPV）的底部的护罩支撑腿和护罩支撑筒，以及设置在RPV和护罩支撑筒之间并被焊接的环形护罩支撑板 到RPV和护罩支撑筒。 设置支撑装置，安装在RPV底部的CRD外壳。 水平设置到支撑装置的导轨构件通过护罩支撑腿之间的开口直接到达护罩支撑板的正下方。 轨道导轨构件上设有弯轨。 设置修理装置的弯曲轨道通过设置在支撑装置上的轨道推出装置通过开口部沿导轨构件向RPV推出。 弯曲的轨道分布在护罩支撑板的正下方。
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