Title:
水中移動補修検査装置および水中移動補修検査方法
Document Type and Number:
Japanese Patent JP4965867
Kind Code:
B2
Abstract:
Disclosed is a system that performs inspection and repair of an underwater structure, specifically core internals in a pressure vessel. An underwater vehicle is provided with a drive wheel, a contact force generating unit (e.g., thruster) that presses the drive wheel to a vertical wall of the underwater structure, an ascending force control unit (e.g., ballast) that controls the buoyancy of the vehicle, a guide roller that engages with and is pressed against an undersurface of the underwater structure by the ascending force controlled by the ascending force control unit. The underwater vehicle is appropriately positioned with respect to the vertical direction by the guide roller. The drive wheel is driven for rotation so that the underwater vehicle runs horizontally along the vertical wall to reach the inspection or repair site, where the inspection or repair is carried out by work tool mounted to the underwater vehicle.
Inventors:
Tetsuro Nakagawa
Yasuhiro Yuguchi
Koichi Soma
Hiroshi Iimori
Mitsuaki Shimamura
Yasuhiro Yuguchi
Koichi Soma
Hiroshi Iimori
Mitsuaki Shimamura
Application Number:
JP2006035209A
Publication Date:
July 04, 2012
Filing Date:
February 13, 2006
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G21C17/003; G21C19/02
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Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori