How a Boiler Economiser Works?

How a Boiler Economiser Works?

A boiler economiser (Boiler Economizer) is a device used to increase the heat utilisation of a boiler. It is usually installed on the flue gas discharge pipe of the boiler, and is used to recover the waste heat in the flue gas and transfer it to the boiler feed water or other medium that needs to be heated, so as to reduce the fuel consumption of the boiler.

The working principle of boiler economiser is as follows:

Flue gas recovery: The waste heat in the flue gas is captured when the boiler flue gas passes through the boiler economiser. The heat in the flue gas comes from the combustion of the fuel during the combustion process and is usually discharged to the atmosphere in the form of flue gas through the flue.

Heat transfer: The captured waste heat from the flue gas is transferred to the boiler feed water or other media to warm it up. This reduces the energy consumption of the feed water and lowers the fuel requirement.

By using a boiler economiser, several benefits can be realised:

Improved energy utilisation: boiler economisers recover the heat energy in the flue gas and transfer it to the boiler feed water or other media, increasing the heat utilisation of the boiler. This reduces fuel consumption and lowers energy costs.

Reducing emissions: By recovering the waste heat in the flue gas, the boiler economiser can effectively lower the flue gas temperature and reduce the heat loss in the flue gas emissions. This helps reduce greenhouse gas emissions and environmental pollution.

Cost saving: By improving energy efficiency and reducing fuel consumption, boiler economiser can help enterprises save energy costs and operating costs.