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Title:
EXHAUST-GAS TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/169310
Kind Code:
A1
Abstract:
This exhaust-gas treatment system is equipped with: a heat recovery unit 104 which is equipped with a heat transfer tube 115 for partially recovering the heat of exhaust gas G2; an electric dust collector 105 which removes the dust in the exhaust gas G3 after heat recovery; a desulfurization device 107 which removes the sulfur oxide in exhaust gas G5; a reheater 108 which is equipped with a heat transfer tube 115 for heating exhaust gas G6; a heat medium circulation pipe 110 which circulates a heat medium 83 between the heat recovery unit 104 and the reheater 108; a heat medium heater 86 which is provided in the heat medium circulation pipe 110 so as to heat the heat medium 83; an ammonia meter 200 which detects the state of ammonia at the outlet of a denitrification device 102; and a control device 201 which controls the heat medium heater 86 on the basis of the ammonia concentration value of the ammonia meter 200. The control device 201 causes the heat medium heater 86 to heat the heat medium 83 if the ammonia concentration is a predetermined value or more.

Inventors:
MIYACHI, Tsuyoshi (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
KAGAWA, Seiji (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
KAMIYAMA, Naoyuki (16-5, Konan 2-chome, Minato-k, Kanagawa 15, 〒1088215, JP)
USHIKU, Tetsu (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2017/006430
Publication Date:
October 05, 2017
Filing Date:
February 21, 2017
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F23J15/08; B01D53/50; B01D53/78; B01D53/86; B01D53/90; B03C3/019; B03C3/02; F23J15/00; F28F27/00
Domestic Patent References:
WO2012043411A12012-04-05
WO2011142376A12011-11-17
Foreign References:
JP2013119983A2013-06-17
JP2001334129A2001-12-04
JPH11333251A1999-12-07
JP2011200781A2011-10-13
JP2012149792A2012-08-09
JP2013119982A2013-06-17
JPH09122438A1997-05-13
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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