Title:
STEAM GENERATOR AND COOLING WATER FLOW RESISTANCE REGULATING METHOD IN STEAM GENERATOR
Document Type and Number:
WIPO Patent Application WO/2007/060915
Kind Code:
A1
Abstract:
A steam generator and a cooling water flow resistance regulating method in a steam generator,
wherein a heat transfer pipe group (38) consisting of a plurality of heat transfer
pipes (37) in an inverted U-shape to allow primary cooling water to flow therethrough
is disposed in a shell portion (31), the end of each heat transfer pipe (37) is supported
by a pipe sheet (33), a lower semispherical end plate (39) is fixed to the lower
end of the shell portion (31), an inlet side water chamber (41) communicating
with one end of each heat transfer pipe (37) is provided and an outlet side water
chamber (42) communicating with the other end of each heat transfer pipe (37)
is also provided, and two flow resistance regulating plates (51, 52) as primary
cooling water flow resistance regulating means are detachably provided at an
inlet nozzle (43) provided at the inlet side water chamber (41) to regulate primary
cooling water flow resistance flowing through the heat transfer pipe group,
whereby it is possible to prevent heat recovery efficiency from lowering.
Inventors:
WATAKABE, Hisato (())
渡壁 壽人 (())
渡壁 壽人 (())
Application Number:
JP2006/323119
Publication Date:
May 31, 2007
Filing Date:
November 20, 2006
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)
WATAKABE, Hisato (())
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)
WATAKABE, Hisato (())
International Classes:
F22B1/16; G21D1/00
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent, Office Kasumigaseki Building, 2-5, Kasumigaseki 3-chom, Chiyoda-ku Tokyo 19, 1006019, JP)
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