EXPANDER-GENERATOR PRESSURE REGULATOR WITH ADDITIONAL ELECTRICAL CONTROL Russian patent published in 2022 - IPC F17D1/04 G05D16/16 F25B11/00 

FIELD: gas industry.

SUBSTANCE: invention relates to the field of the gas industry, namely to pressure regulators, and can be used to lower, regulate and maintain the pressure of natural gas at a given level with the associated utilization of its pressure energy for power generation. The expander-generator pressure regulator with additional electrical control contains a pressure sensor, an electric generator, an actuator and a volumetric pneumatic motor, the input of which is connected to its output through a control valve. A tachometer is additionally installed on the shaft of the electric generator, the output of which is connected to the input of the control system. The load block is included in the rotor circuit and is connected to the electric generator and the input/output of the control system. The inverter is connected to an automatic charger, a rectifier and to the input of the control system. The rectifier is connected to the load unit and to the input/output of the control system. The automatic charger is connected to the battery and to the input/output of the control system.

EFFECT: increase in the accuracy and reliability of pressure control at the outlet of the reduction point in wide ranges of gas flow rates.

1 cl, 1 dwg