Ventilation system for ventilation of fixed parts e.g. stator, of industrial gas power turbine, has variation device varying pressure drop in conduit, where variation device includes regulation unit for regulation of air flow in conduit

摘要

The system (1) has a fan (2) opened into an air extraction conduit (5). A variation device (6) i.e. valve, varies pressure drop in the conduit. The variation device includes a regulation unit for regulation of air flow in the conduit. The regulation unit comprises a flap pivotingly mounted on a casing that is mounted on a wall of the conduit. The variation device includes a non-ferrous contact. An adjusting abutment for adjusting opening of the flap is accessible from outer side of the conduit.