WNS Series Horizontal Return Tubular Boiler

The WNS series oil/gas steam boiler is a horizontal return tubular boiler design that helps improve thermal efficiency and reduce NOx emissions while also facilitating inspection and maintenance. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere. The Corrugated furnace chamber design reduces thermal expansion forces, while the efficient threaded smoke tubes greatly improve heat transfer. The eccentric arrangement of the furnace chamber increases steam space and enhances steam quality. These designs give the WNS series boilers a high overload capacity during operation, allowing them to adapt to different operating conditions.