Title:
REHEAT BOILER
Document Type and Number:
WIPO Patent Application WO/2010/032593
Kind Code:
A1
Abstract:
Provided is a reheat boiler in which the unbalanced temperature distribution of the gas temperature of a combustion gas on the outlet side of a reheat furnace is reduced by changing the gas flow pattern of a reheat burner. A reheat boiler (10A) is provided with a main boiler (106) which is configured in such a manner that a main combustion gas produced by the combustion of a burner (101) flows from a furnace (102) through a superheater (104) and a evaporation tube bank (105), a reheat furnace (108) which is disposed on the wake flow side of the evaporation tube bank (105) and produces a reheated combustion gas by the combustion of a reheat burner (107), and a reheater (109) which is disposed on the upper side of the reheat furnace (108), wherein a drift preventing portion is formed by providing a closing plate (130) for narrowing the cross-sectional area of the flow path of the combustion gas in a reheat furnace outlet portion (120) which forms the flow path of the combustion gas and the reheated combustion gas by connecting the reheat furnace (108) and the reheater (109).
Inventors:
IMADA, Junji (C/O NAGASAKI Research & Development Center, MITSUBISHI HEAVY INDUSTRIES LTD., 717-1, Fukahori-machi 5-chome, Nagasaki-sh, Nagasaki 92, 〒8510392, JP)
今田 潤司 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社 長崎研究所内 Nagasaki, 〒8510392, JP)
UCHIDA, Isao (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, JP)
内田 勲 (〒10 長崎県長崎市飽の浦町１番１号 三菱重工業株式会社 長崎造船所内 Nagasaki, 〒8508610, JP)
今田 潤司 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社 長崎研究所内 Nagasaki, 〒8510392, JP)
UCHIDA, Isao (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, JP)
内田 勲 (〒10 長崎県長崎市飽の浦町１番１号 三菱重工業株式会社 長崎造船所内 Nagasaki, 〒8508610, JP)
Application Number:
JP2009/064880
Publication Date:
March 25, 2010
Filing Date:
August 26, 2009
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)
IMADA, Junji (C/O NAGASAKI Research & Development Center, MITSUBISHI HEAVY INDUSTRIES LTD., 717-1, Fukahori-machi 5-chome, Nagasaki-sh, Nagasaki 92, 〒8510392, JP)
今田 潤司 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社 長崎研究所内 Nagasaki, 〒8510392, JP)
UCHIDA, Isao (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, 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)
IMADA, Junji (C/O NAGASAKI Research & Development Center, MITSUBISHI HEAVY INDUSTRIES LTD., 717-1, Fukahori-machi 5-chome, Nagasaki-sh, Nagasaki 92, 〒8510392, JP)
今田 潤司 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社 長崎研究所内 Nagasaki, 〒8510392, JP)
UCHIDA, Isao (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES LTD., 1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, JP)
International Classes:
F22B37/40; F22G1/04; F22G1/16
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (37F The Landmark Tower Yokohama, 2-2-1 Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 37, 〒2208137, JP)