7MW Biogas Fired boiler for hot Water with Italy Burner

7MW Biogas Fired boiler for hot Water with Italy Burner

WNS series horizontal internal combustion boiler is classic 3-pass wetback oil/gas fired boiler. After fuel is atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, called 1st pass; the high temperature flue gasses are collected in reversal chamber and then enter 2nd pass, which is grooved tube bundle area through heat convection, air temperature gradually falls and flows to front smoke box and enter 3rd pass, which is done in the smooth tube bundle area, and then through back smoke box lead to chimney and exhausted to the atmosphere.

Biogas Fired boiler.The way to weld Smoke tube and tube sheet is to first expand to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boiler service life.Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. Biogas Fired boiler..All longitudinal and girth joint are test by radiographic inspection.