Title:
CLAMPING DEVICE FOR MAINTAINING MEASUREMENT PIPING IN NUCLEAR REACTOR
Document Type and Number:
WIPO Patent Application WO/2013/111574
Kind Code:
A1
Abstract:
Provided is a clamping device for maintaining measurement piping in nuclear reactors, the device being capable of easily accomplishing the work of securely fixing measurement piping, which is disposed in a very cramped space, to the diffuser by remote control from just above the reactor core. The clamping device comprises a first clamping mechanism and a second clamping mechanism. The first clamping mechanism has: multiple clamps that clamp the measurement piping; multiple first clamp-operating bolts that can be rotated by remote control from just above the reactor core; and a wedge mechanism, which converts the rotation of said clamp-operating bolts into movement of the multiple clamps in the radial direction of the diffuser and generates a clamping force that secures the measurement piping. The second clamping mechanism has: support clamps for clamping the support; a second clamp-operating bolt that can be rotated by remote control from just above the reactor core; and a wedge mechanism, which converts the rotation of the second clamp-operating bolt into movement of said support clamps in the tangential direction of the diffuser and generates a clamping force that secures the support.
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Inventors:
OZAWA YUSUKE
KINUGASA KUNIHIKO
MORI HAJIME
MINATO YUKI
WATANABE MASANOBU
ADACHI HIROYUKI
MITSUHASHI TADAHIRO
KINUGASA KUNIHIKO
MORI HAJIME
MINATO YUKI
WATANABE MASANOBU
ADACHI HIROYUKI
MITSUHASHI TADAHIRO
Application Number:
PCT/JP2013/000300
Publication Date:
August 01, 2013
Filing Date:
January 23, 2013
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
G21C15/25; G21C17/032; G21C19/02
Foreign References:
| JP2007333431A | 2007-12-27 | |||
| JPS62170887A | 1987-07-27 | |||
| JP2010085140A | 2010-04-15 | |||
| JP2004212336A | 2004-07-29 | |||
| JP2009075077A | 2009-04-09 | |||
| JP2013015465A | 2013-01-24 |
Attorney, Agent or Firm:
SAGOI, MASAYUKI (JP)
Masayuki Sunai (JP)
Masayuki Sunai (JP)
Download PDF:
Claims:
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