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BTA-2500 unit on the gas turbine engine

PURPOSE AND FIELD OF APPLICATION

The fuel equipment unit is intended for supply of fuel gas and starting gas to the gas turbine engine injectors, as well as for gas metering and discontinuation of its supply to the engine. It is used in the gas turbine engine regulating system.


ТECHNICAL DATA

Parameter

Significance

1.Working medium

natural gas

2.Inlet gas pressure, MPa

1,6...3,0

3.Nominal diameter, mm

40

4.Area of metering ports, mm2

350

5.Cutout valve opening time, s

0,5

6.Cutout valve closing time, s

0,1

7.Metering valve drive

step motor

8.Metering valve step, dg

0,056

9.Solenoid valve supply voltage, V

- 24

10.Step motor pickup, step/s

100...2000

11.Overall dimensions, mm

360х310х220

12.Weight, kg

15

BTA DESIGN FEATURES

Comprises two valves - metering and cutout ones, and also a starting fuel solenoid valve and a cutout control solenoid valve;

The metering valve is started from the step motor;

The BTA is furnished with a set of switches for switching;

Fuel supply is controlled by a rotary metering valve with gas pressure relief at the expense of special-shaped metering ports;

The quick-response cutout valve cuts off fuel supply to the gas turbine engine injectors and provides drainage of residual fuel;

The cutout valve is controlled by one or two solenoid-operated valves:

- by one constantly energized solenoid valve;

- by two solenoid-operated valves energized in response to a command;

The BTA interacts with the gas turbine engine automatic control system, which forms control pulses and transmits them to the step motor.


SERVICE

  • Installation, starting-up and adjustment operations
  • Customer's technical personnel training
  • Warranty service
  • All types of repair
  • Manufacture's supervision
  • Consulting

SCOPE OF SUPPLY

  • BTA unit with one solenoid valve
  • SPTA set
  • Set of operational documents

Supply options

  • With two solenoid valves
  • With additional complete parts, as per Customer's requirements:

           - input screen filter 90 micron;

           - minimum gas pressure transmitter;

           - metering valve angle gage


Application

Number

Ukraine

for GTD 1 МW

3

Russia

for GTD 2,5 МW

1