Air control is becoming more and more necessary to meet the emission requirements for operational GTs. It improves the starting reliability and load flexibility of gas turbines. The tighter demands of necessary emission control call for highly accurate and responsive air control
VGV or VIGV control is vital, with OEMs adding multiple independent drives. Air bleed for compressor control and anti icing is vital.
Overview
VGV-L
VGV-R
In the last ten years HEINZMANN has supplied hundreds of electric guide vane servo systems to a gas turbine OEM in Europe for machines from 4 through 20 MW shaft power. HEINZMANN now offers electric bleed air control valves for the same range of turbines based on its high-performance electric actuation technology.
This is a position servo assembly consisting of a digital electronic controller, rotary servo motor and rotary to linear gearbox. In application, the unit is usually mounted in trunnions and connected by a spherical jointed coupling to a mechanism which transfers the linear motion to rotate several stages of variable inlet stator blades on an axial compressor.
Technical data
With the growing requirement for increased position accuracy and speed multiple rotary VGV actuators are being fitted. Two or three actuators moving less VGVs means accuracy and speed. This is a position servo assembly consisting of a digital electronic controller, rotary servo motor and rotary gearbox. High accuracy position and feedback. Various mounting options are available customer specified by application.
Technical data
