The difference between the total heat released by the complete combustion of the fuel in the boiler and the heat used by the boiler.It includes the heat taken away by the flue gas from the boiler, the heat lost in the air around the furnace, the heat not released by the fuel combustion or incomplete combustion and the physical heat taken away by the ash.These losses are expressed separately as a percentage of the total heat released by the complete combustion of the fuel.
Methods for reducing heat loss
Automatic regulation of combustion is to regulate the amount of fuel under the premise of controlling the steam pressure at the boiler outlet for a certain value.In order to achieve reasonable combustion, it is necessary to control the quality of combustion, according to the flue gas oxygen content in the boiler exhaust to control the ventilation system, regulate ventilation, in order to maintain an appropriate amount of excess coefficient of air, reduce the boiler heat loss.Therefore, a complete combustion regulation, in fact, includes the boiler steam pressure regulation, combustion Settings, combustion volume regulation, air volume regulation, furnace negative pressure regulation and the control of the drum, induced draft fan.
