Steam Boilers

GeneralBare water tube, oil-fired boiler fuelled with diesel oil, heavy fuel or sludge/waste oil Low capacity types designed without refractory Provided with a stationary water washing cleaning system Supplied with rotary cup burner, steam atomizing burner or pressure jet burner Design Data Steam capacity: 0.75 - 15 t/h Design pressure 10 - 16 bar(g) Thermal output: up to 10 MW Description The UNEX" CHB boiler consists of a large furnace welded to vertical, plain-type convection tubes. The low-alloyed plate material is durable against cracking, and it is easy to weld. CHB boilers with a steam capacity of up to 5 t/h have fully water-cooled furnaces. They are constructed without refractory. The furnaces of boilers with larger capacities are welded using gas-tight membrane water tubes connected to the dome-shaped top of the furnace.Adequate furnace dimensioning guarantees good combustion, moderate loading and low material stresses. With an efficiency level of approx. 85%, the CHB has an economical operation and offers savings in fuel costs. Due to the standard built-in water washing device, the UNEX" CHB boiler is easy to clean.UNEX" CHB can operate as a steam drum for an exhaust gas economizer. If the economizer capacity is high, the height of the boiler will be increased accordingly.