HEINZMANN Company Group

HEINZMANN
Engine & Turbine Management

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REGULATEURS EUROPA
Control & Monitoring

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Control & Actuation

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HEINZMANN Australia
Steam Turbine Control

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Emission Control

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HEINZMANN UK

Optimal control technology for gas turbines

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
  • RBV-80

Overview Air Controls

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.

 

Hydraulic Governors

 

VGV-L Linear Guide Vane Actuator

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

  • Force: Up to +/- 4500 N
  • Power supply: 24 VDC
  • Cerficates: ATEX

More information

Technical Drawing

Data Sheet

  • Stroke configurable at the time of ordering
  • Mounting options to suit most applications
  • Process feedback of position and force
  • Highly efficient gearhead optimises utilisation of electrical power

VGV-R Rotary Guide Vane Actuator

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

  • Force: Up to +/- 4500 N
  • Power supply: 24 VDC
  • Cerficates: ATEX

More information

Technical Drawing

Data Sheet

  • Any rotary positioning applications
  • Force uo to 350 Nm
  • Mounting options to suit most applications
  • Process feedback of position and force
  • Highly efficient gearhead opimises utilisation of electrical power
  • 24 VDC, 4-20 mA control

RBV-80 Rotary Bleed Valve

Servo assembly complete with valve which provides fast and precise bleeding of gas turbine compressor discharge air.

Technical data

  • Power supply voltage range: 18 ... 32 VDC
  • Power supply current range: 1 A steady state through 10 A
  • Temperature range: -20 ... +85 °C
  • Slew rate: 300 ms

More information

Technical Drawing

Data Sheet

  • Electric rotary positioning servo
  • Valve specified for high temperature and pressure with low leakage
  • Direct connection to 80 mm butterfly valve
  • Precise, drift-free operation

This assists with:
1. Dry low emission fuel systems
2. Improving part load compressor efficiency of single shaft gas turbines
3. Increasing part load exhaust temperatures for combined cycle power generation systems
4. Improving power turbine overspeed limitation on multi-shaft gas turbines

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