METHOD FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE, DEVICE FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE, AND REMOTE MONITORING SYSTEM COMPRISING DEVICE FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE

Title:

Document Type and Number:

WIPO Patent Application WO/2020/013220

Kind Code:

A1

Abstract:

The method for controlling a wet flue gas desulfurization device according to the present invention includes: a step for constructing, with machine learning, a first learning model for the relationship between future sulfur dioxide concentration at an absorption tower outlet, and operation data for a combustion device and operation data including the circulation flow rate of an absorbing solution for a wet flue gas desulfurization device; a step for creating, using the first learning model, a first relational table of the circulation flow rate of the absorbing solution at a first time and sulfur dioxide concentration in the effluent gas flowing out from the absorption tower at a second time, which is a time further in the future than the first time; a step for determining, on the basis of the first relational table, the circulation flow rate of the absorbing solution at the first time so that the sulfur dioxide concentration in the effluent gas at the second time does not drop below a preset value; and a step for regulating operation conditions for at least one circulation pump on the basis of the determined circulation flow rate at the first time.

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Inventors:

SUDO JIN (JP)
KANEMORI SHINYA (JP)
GUNJI SHUN (JP)
KOKUBO MAKOTO (小久保　誠)

Application Number:

PCT/JP2019/027308

Publication Date:

January 16, 2020

Filing Date:

July 10, 2019

Export Citation:

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Assignee:

MITSUBISHI HITACHI POWER SYS (JP)

International Classes:

B01D53/50; B01D53/14; B01D53/80; F23J15/00; G06N20/00; G05B13/02

Domestic Patent References:

WO2018165029A1

2018-09-13

Foreign References:

JPH03267115A	1991-11-28
JPH06319941A	1994-11-22
JPH05317643A	1993-12-03
JPH057728A	1993-01-19
JPH07116455A	1995-05-09
JP2984933B2	1999-11-29

Other References: