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

A device for controlling a wet flue gas desulfurization device including:

• an absorption tower;
• and
• at least one circulation pump for circulating an absorption liquid in the absorption tower, and
• performing desulfurization by bringing the absorption liquid into gas-liquid contact with an exhaust gas generated in a combustion device, in the absorption tower, the device comprising:
• a first learning model construction unit for constructing a learning model by machine learning of a relationship between a future sulfur dioxide concentration at an outlet of the absorption tower, and operation data of the combustion device and operation data of the wet flue gas desulfurization device including a circulation flow rate of the absorption liquid;
• a first relationship table creation unit for creating, by using the learning model, a first relationship table between a circulation flow rate of the absorption liquid at first time and a sulfur dioxide concentration in an effluent gas flowing out of the absorption tower at second time which is time in the future relative to the first time;
• a circulation flow rate decision unit for deciding, based on the first relationship table, the circulation flow rate of the absorption liquid at the first time, at which the sulfur dioxide concentration in the effluent gas at the second time is not more than a preset set value;
• and
• a circulation pump adjustment unit for adjusting an operation condition of the at least one circulation pump based on the decided circulation flow rate, at the first time.