Title:
WORKING DEVICE FOR INSIDE OF WATER CHAMBER, AND INSTALLATION METHOD FOR WORKING DEVICE FOR INSIDE OF WATER CHAMBER
Document Type and Number:
WIPO Patent Application WO/2011/148731
Kind Code:
A1
Abstract:
Disclosed is a working device (1) for the inside of a water chamber which performs predetermined work inside a water chamber (131) of a steam generator and which is provided with: at least two engaging means (2) which are respectively inserted into and which engage with a heat transfer tube (132) disposed on a tube plate (137) in the water chamber (131); a supporting means (3) which bridges between each engaging means (2); and a moving body (4) which is disposed so as to be movable along the bridged supporting means (3). As a consequence, the moving body (4) is stably supported within the water chamber (131) and can be easily moved.
Inventors:
HOSOE, Fumihiro (())
Application Number:
JP2011/059276
Publication Date:
December 01, 2011
Filing Date:
April 14, 2011
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
International Classes:
G21C17/003; F22B37/02; G21C19/02
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (Sakai International Patent Office, Kasumigaseki Building 2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 20, 〒1006020, JP)
Claims: