FIELD: oil and gas industry.
SUBSTANCE: invention can be used in the composition of the gas distribution stations (GDS) and gas control points (GCP) for gas flow energy utilisation. An expander-generator set with a control system, including an electric generator, a drive-operated regulating device, a signal amplifier and a comparison unit, characterized in that a volumetric air motor is additionally installed in the reduction line between the safety shut-off valve and the pressure regulator. The output of the volumetric air motor is connected to its input via a control valve, the pressure difference sensor on the volumetric air motor is connected to the comparison element, the signal amplifier and the actuator connected to the control valve.
EFFECT: possibility of an expander-generator set operation with relatively low pressures and costs, regardless of the unevenness of gas withdrawal by consumers and changes in the moment of resistance, as well as an increase in the utilized energy.
1 dwg
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