Economizer

The economizer module is a core functional module used in thermal systems such as waste heat boilers and industrial boilers to recover low-temperature flue gas waste heat and preheat boiler feed water. Its main function is to absorb low-temperature heat from the flue gas (usually flue gas temperatures are between 200-400°C) to increase the feed water temperature entering the boiler evaporator, thereby reducing fuel consumption and improving the overall thermal efficiency of the boiler.

By raising the feed water temperature, the economizer module reduces the heat required for fuel combustion, significantly lowering fuel consumption and operating costs, resulting in significant economic benefits. Raising the feed water temperature helps stabilize the boiler's steam pressure and temperature parameters, reducing operational fluctuations. While saving fuel, it also reduces carbon dioxide, nitrogen oxide, and dust emissions. This has positive implications for energy conservation and emission reduction efforts, helping enterprises achieve their "dual carbon" goals. Different economizer designs (smooth tube, pulverized coal, biomass, etc.) can be designed based on boiler type (HRSG, pulverized coal, biomass, etc.) and process requirements. They are adaptable and flexible to varying flue gas temperatures and water quality conditions.