Specific applications of induced draft fan in boiler:

Excluding flue gas: The flue gas produced after boiler combustion contains a variety of harmful substances, including dust, sulfur dioxide, nitrogen oxides and so on. The induced draft fan extracts these flue gases from the inside of the boiler and transports them through the flue to the flue gas treatment equipment, where they are purified through the steps of dust removal, desulfurization and denitrification before being discharged.

Maintaining negative pressure: The induced draft fan maintains a negative pressure environment inside the boiler by extracting flue gases. Negative pressure serves to prevent flue gas from the combustion zone from leaking into the boiler room or other areas, ensuring air quality in the boiler room and the safety of operators. At the same time, negative pressure also helps to fully mix air and fuel in the boiler, which results in fuller combustion and improves the thermal efficiency of the boiler.

Regulating the combustion process: The operation of the induced draft fan will directly affect the combustion condition in the boiler. By adjusting the running speed of the induced draft fan and controlling the exhaust rate, the pressure difference and combustion intensity inside the boiler can be adjusted, thus controlling the temperature and combustion efficiency of the boiler.

Improve boiler efficiency: The reasonable operation of the induced draft fan ensures that the combustion products inside the boiler can be discharged in time, avoiding insufficient combustion or excessive residual gas build-up, which helps to improve the utilization rate of fuel and the thermal efficiency of the boiler.

Reducing pollutant emissions: The induced draft fan helps to send the flue gas to the flue gas treatment equipment, ensuring that the gas emitted from the boiler meets the environmental requirements. The accurate control of the induced draft fan reduces the emission of pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter, reducing the environmental impact of boiler operation.

The induced draft fan in the boiler is the core equipment to ensure efficient combustion and emission compliance of the boiler. It not only helps remove flue gases from combustion, but also ensures the stability and safety of the combustion process by regulating airflow and maintaining a negative pressure environment. Through the proper use of the induced draft fan, the boiler can achieve higher thermal efficiency and lower pollutant emissions, which meets the needs of modern industry for energy saving and environmental protection.