Boiler Flue Waste Heat Recovering System

Low-Temperature-Ecnomizer

Effective Energy Saving MGGH

Coal-fired power station boiler flue temperature is located between 120℃ to 140℃, Desurforation Tower work temperature is commonly at 50℃,As contrary to waste large quantity of water to reduce the flue temperature to the desurfortaion tower work temperature,we propose to recover the waste flue heat and in this way we can save the energy and the water to do benefit to the man kind.

As the left picture has showed,flue temperature is reduced from 137℃ to 83℃,Condensation water temperature is risen from 75℃ to 101℃。

in the event we reduce the electric dust collecter inlet flue temperterature to the section from 85℃ to 100℃,we can make out to set the electric dust collecter into the best condition, meanwhile the dust quantity in the chimney flue emision is lower to 5 mg/m3. In this method, we receieve the triple harvest of saving the coal, saving the water and reducing the emmision.

The discharged flue from the desurforation tower has high water content,and it can make white smoke rolling when the flue emmision is shaped from the chinmey. Taking the advantage of heating the pure flue gas from flue desulfuration to the section from 72℃ to 92℃ in the flue waste recovery , we can eliminate the situation of white smoke polution to restore the blue color to the sky.And in this method,we receieve the triple harvest of saving the coal, saving the water and reducing the emmsion.