Title:
BOILER CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3297118
Kind Code:
B
Abstract:
PURPOSE: To provide a boiler control device capable of performing a high performance operation of a boiler without being influenced against a surface moisture amount of coal applied.
CONSTITUTION: There are provided a heat balance calculation device 26 in which a mill outlet air temperature 21s, an inlet air temperature 22s, an inlet air volume 23s, a coal feeding amount 24s, a power 25s and a coal specific moisture 26s are inputted and then a surface moisture signal for coal is outputted under a heat balance, and a coal calorific value calculation device 27 in which an output from the heat balance calculation device 26 and a coal specific moisture signal are inputted and a coal calorific value signal is outputted. In addition, as front stage of a boiler control device 30 there are provided a fuel flow rate correction calculation device 28 which receiving an output of the coal calorific value calculation device 27 outputs a fuel flow rate correcting signal, and an economizer necessary gas bypassing amount discriminating device 29 which receiving an output from the heat balance calculation device 26 outputs a bypass signal when the input is more than a predetermined value.
Inventors:
Naito, Shoji
Application Number:
JP1993000012482
Publication Date:
April 12, 2002
Filing Date:
January 28, 1993
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F22B35/00; F23B90/00; F23K3/02; F23N1/00; F22B35/00; F23B90/00; F23K3/00; F23N1/00; (IPC1-7): F23K3/02; F22B35/00; F23B7/00; F23N1/00
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