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1. (WO2014208228) BOILER CONTROL DEVICE

Pub. No.:    WO/2014/208228    International Application No.:    PCT/JP2014/063636
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Sat May 24 01:59:59 CEST 2014
IPC: F22B 35/00
F23J 3/00
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: HAYASHI Yoshiharu
林 喜治
SEKIAI Takaaki
関合 孝朗
FUKAI Masayuki
深井 雅之
MURAKAMI Masahiro
村上 正博
KITAGAWA Katsuhide
北川 勝秀
SHIMIZU Satoru
清水 悟
Title: BOILER CONTROL DEVICE
Abstract:
In order to prevent a reduction in the primary steam temperature in a boiler when a soot blower injection is performed at the furnace wall of a boiler, this boiler control device is characterized in that the flow volume of the fuel and/or the air supplied to the boiler is controlled in advance, prior to a change in the primary steam temperature in response to the soot blower injection at the furnace wall of the boiler. Furthermore, preferably this boiler control device is characterized in that a control for increasing the flow of fuel to the boiler and/or a control for increasing the air flow volume distribution in an after-air port is performed in accordance with the soot blower injection at the furnace wall of the boiler.