Custom Steam Boiler Economizers

Custom Steam Boiler Economizers

Custom steam boiler economizers are heat - recovery devices designed to improve the energy efficiency of steam boilers. They capture waste heat from the flue gas exiting the boiler and use it to pre - heat the feedwater going into the boiler. By doing so, they reduce the amount of fuel needed to heat the water to the desired steam - producing temperature, resulting in significant energy savings and cost reductions.

Working Principle

Heat Recovery from Flue Gas: As the hot flue gas exits the steam boiler, it still contains a significant amount of heat energy. The flue gas enters the economizer and passes over the tube bundle. Heat is transferred from the flue gas to the tubes through convection. The temperature of the flue gas decreases as it gives up its heat to the tubes.

Pre - heating of Feedwater: Concurrently, the feedwater enters the economizer through the inlet and flows through the tubes. As it does so, it absorbs the heat from the tubes, which was originally from the flue gas. The feedwater temperature rises, and it is then fed into the steam boiler at a higher temperature than it would have been without the economizer. This reduces the amount of additional heat required from the boiler's burner to convert the water into steam.