Patent ID: 7571735
Filing Date: 2009-08-11
Classification: B05B,B08B,F01D,F04D,F05D

Abstract:
1. A nozzle assembly for cleaning turbines, the nozzle assembly installed in a nozzle opening on a wall of an inlet air duct of a turbine facing a compressor inlet of the turbine, the nozzle assembly comprising: a nozzle body; an offline washing nozzle comprising a nozzle head and disposed on an end of the nozzle body, the offline washing nozzle being structured and positioned to direct a cleaning liquid towards the compressor inlet of the turbine in a direction substantially parallel with airflow within the inlet air duct in an immediate vicinity of the offline nozzle head; at least one online washing nozzle, each of the at least one online washing nozzles comprising a nozzle head and disposed on the end of the nozzle body, each of the at least one online washing nozzles being structured and positioned to direct a cleaning liquid substantially perpendicular to a direction of airflow within the inlet air duct in an immediate vicinity of the online nozzle heads; and means for selectively supplying the cleaning liquid to either the offline washing nozzle or to the at least one online washing nozzle while resisting fluid flow to the other of the offline washing nozzle and the at least one online washing nozzle.