Flue gas cooler

Boiler condenser, also known as flue gas condenser, can effectively save production costs, reduce the exhaust temperature of the boiler, and improve the thermal efficiency of the boiler after using the flue gas condenser. Ensure that the boiler operates in compliance with national energy-saving and emission reduction standards.

The waste heat recovery device for flue gas condensation uses low-temperature water or air to cool the flue gas, achieving a decrease in flue gas temperature. Near the heat exchange surface area, water vapor condenses in the flue gas, while releasing sensible heat and latent heat of water vapor condensation. The water or air in the heat exchanger absorbs heat and is heated, achieving heat recovery and improving boiler thermal efficiency.

Boiler thermal efficiency improvement: The theoretical flue gas volume produced by burning 1NM3 natural gas is about 10.3NM3 (approximately 12.5KG). Taking the excess air coefficient of 1.05 as an example, 14NM3 (approximately 16.6KG) of flue gas is produced. When the flue gas temperature is reduced from 200 degrees Celsius to 70 degrees Celsius, about 1600KJ of physical sensible heat is released, the water vapor condensation rate is taken as 50%, and the latent heat of vaporization is released as about 1850KJ. The total heat release is 3450KJ, which is about 10% of the low-level heat generation of natural gas. If 80% of the flue gas is taken into the heat recovery device, the thermal energy utilization rate can be increased by more than 8%, saving nearly 10% of natural gas fuel.

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