THE BOILER HOUSE SOLUTIONEQUIPMENT
12 to 30 t/h,8,1 to 18,5 MW
The BWR is a 3-pass boiler with tubularconstruction wet back, specially desi-
gned by BABCOCK WANSON, and
offering the combined advantages of
fire-tube and water-tube technologies.
Its design provides a high maximum
permissible pressure of the boiler shell.
High efficiency, more than 97%
The BWR boilers are equipped with systems which optimise the efficiency up to 95%with economisers, capable of reaching 97 % with additional water-water and/or
water-air exchangers. These results are obtained due to the optimised matching
of the firing equipment and the boiler shell, designed and produced by BABCOCKWANSON. Efficiency is stable as a result of a well-controlled excess air curve, due tothe geometry of the
professional burner head and electronic cam modulation. BWR boilers bene-
fits from the innovative Ecosteam
Sturdiness and long life
® developments reaching more than 97% of efficiencyand integrating the improvement of the thermal exchange in the boiler and the low
level of exhaust gases (NOx, CO The water-tube gas transfer chamberenables the
professional furnace tube to be centred.
The longitudinal stresses on the tube
plates are therefore symmetrical.The expansion of the tubes is evenlydistributed over the whole diameter of
the boiler. The active circulation in the
water tubes ensures continuous cooling
of the walls, regardless of the operating
conditions and steaming rates.
2 …) as well as very low heat losses from the boiler skin.
Efficiency
® PACK without ECONOMISER with ECONOMISERwith ECOSTEAM Efficiency % Simplified andeconomical maintenance
7525507510080859010095 The absence of refractory (apart from theburner throat and the rear inspection
cover) is a significant advantage in terms
of maintenance and down-time and helpsprovide very high on-line availabilityfurther reducing operating costs.
Non contractual values Steam load % Flexibility of use
The technology of the water-tube
chamber provides quicker load
recovery following heavy steam
demand fluctuations and coldstarts.