OFF-LINE DEVICE FOR GAS ENERGY RECOVERY Russian patent published in 2004 - IPC

FIELD: pressure reducing devices for gas mains; excess gas energy recovery.

SUBSTANCE: device has turbine and high-frequency multipole synchronous generator with field capacitors placed in gas-tight chamber incorporating gas-conveying inlet and outlet pipes, bushing insulators, power rectifiers, and load. Plus and minus leads of power rectifier are connected to current inverter or to electrolyzing unit. Turbine is connected to speed sensor and to driving shaft of electromagnetic clutch whose output shaft is coupled with generator rotor. Generator windings are connected through bushing insulators to input of switching unit. Output of the latter is connected to field capacitors, power rectifier, voltage regulator, and pulse shaper, the latter being connected to first input of synchronizing device whose second input is connected to master frequency oscillator. Output of synchronizing device is connected to input of amplifier and the latter is connected through bushing insulators to control winding of electromagnetic clutch.

EFFECT: enlarged functional capabilities and extended gas-pressure variation range for regulating generator parameters.

1 cl, 2 dwg