Invention Grant
- Patent Title: Jet pump measurement pipe repair method
- Patent Title (中): 喷射泵测量管修复方法
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Application No.: US13315887Application Date: 2011-12-09
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Publication No.: US09312036B2Publication Date: 2016-04-12
- Inventor: Yuki Minato , Toshihiro Yasuda , Kunihiko Kinugasa , Hajime Mori , Satoshi Yamamoto , Jun Suzuki , Tadahiro Mitsuhashi
- Applicant: Yuki Minato , Toshihiro Yasuda , Kunihiko Kinugasa , Hajime Mori , Satoshi Yamamoto , Jun Suzuki , Tadahiro Mitsuhashi
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-276188 20101210
- Main IPC: G21C15/25
- IPC: G21C15/25 ; F04F5/54 ; G21C17/017 ; G21C19/14 ; G21C17/10
Abstract:
In a jet pump measurement pipe repair method according to the present embodiment, a breakage part of a measurement pipe horizontally fixed to a lower part of a jet pump provided in reactor water in a reactor pressure vessel is repaired. The method has: a step of cutting and removing the measurement pipe including the breakage part; a step of retaining a connection pipe for connecting the remaining measurement pipe on the jet pump by means of a clamp; and a step of connecting ends of the remaining measurement pipe by means of the connection pipe.
Public/Granted literature
- US20120144641A1 JET PUMP MEASUREMENT PIPE REPAIR METHOD Public/Granted day:2012-06-14
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