Burner with annular nozzle for combustion plant - uses clamped replaceable rims to change nozzle outlet width

摘要

The burner head for combustion plant has tubular cross section round collector connected to gas supply pipe. This collector is enclosed by air supply channel and ensures optimum combustion at all load ranges with large pressure drop across the nozzle. The gas nozzle (11) is an annular gap (12) with edge rims (13, 14) at the nozzle outlet. These rims can be replaced and are fastened on the outlet end flanges of the annular nozzle. Replacement is facilitated by using clamping brackets. The rims change outlet width of annular nozzle gap.