What is a Boiler Economiser?

What is a Boiler Economiser?

A boiler economiser is a device used to increase the thermal efficiency of a boiler. It is a type of heat exchanger in a boiler system that is primarily used to recover heat from the boiler flue gas and use that heat to preheat the boiler feed water or air. In this way, the economiser reduces the temperature of the boiler flue gas while increasing the temperature of the feed water or air, enabling the boiler to provide more heat under the same fuel conditions.

The main features and benefits of a boiler coal economiser include:

Increased thermal efficiency: A coal economiser is able to recover heat from the flue gases and use it to preheat the boiler's feed water or air. This enables the boiler to utilise heat energy more efficiently, increasing thermal efficiency and reducing fuel consumption.

Reduced Energy Costs: By increasing the thermal efficiency of the boiler, the economiser reduces energy consumption and therefore energy costs. This is important for large energy consumers such as industrial companies and power plants.

Reduced environmental pollution: As the coal economiser reduces fuel consumption and lowers flue gas emissions, it helps to reduce the emission of pollutants such as carbon dioxide into the atmosphere and reduces the burden on the environment.

Extend boiler life: Coal economisers reduce corrosion and wear and tear inside the boiler, extending the life of the boiler and reducing maintenance costs.

Improve the ecological environment: By reducing energy consumption and environmental pollution, the coal economiser has a positive impact on improving the surrounding ecological environment and improves the quality of life of local residents.