Working Principle Of A Heating Furnace

The working principle of a heating furnace is relatively straightforward. Fuel is ejected from the burner and combusted, generating a high-temperature flame and high-temperature flue gas. The high-temperature flame transfers heat through radiation to the furnace tubes within the radiation chamber, and further to the medium within the tubes. Simultaneously, the high-temperature flue gas, drawn upward by the chimney or the induced draft fan, enters the convection chamber of the heating furnace, where it transfers heat to the tubes within the convection chamber through convection.