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

• Main Authors: KOKUBO, MAKOTO, SUDO, JIN, GUNJI, SHUN, KANEMORI, SHINYA
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2020
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FLUES; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; TRANSPORTING; WEAPONS

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