INSTALLATION FOR PREPARATION OF IMPULSE GAS FOR PNEUMATIC SYSTEMS OF SHUT-OFF-REGULATOR DEVICES OF GAS MAINS Russian patent published in 2001 - IPC

FIELD: transportation of natural gas over pipe-lines, in particular, devices for preparation of impulse gas used in pneumatic drives of shut-off-regulator devices at pumping gas-compressor stations. SUBSTANCE: the installation uses a gas drying and cleaning system connected to the natural gas main, electrical equipment system and a pipe-line system, the installation inlet and outlet are straight- connected to each other by an auxiliary pipe-line with two stop valves, non-return valve and a diaphragm rupturing device located between the stop valves all installed in succession in the direction of gas flow; connected in parallel with the auxiliary pipe-line to the diaphragm rupturing device is a by-pass pipe with a stop valve installed in it, and the gas cleaning and drying system has successively connected in the direction of gas flow a water-oil separator, intermediate filter, at least one recoverable adsorber having an external heating with the aid of electric heaters located in the external outline of the adsorber cylinder and connected by the recovery line at the installation outlet to the auxiliary pipe-line past the non-return valve, and a final filter; the inlet of the water-oil separator is connected to the auxiliary pipe-line at the installation inlet, the outlet of the final filter is connected at the installation outlet to the auxiliary pipe-line before the non-return valve, and the water-oil separator and the intermediate filter additionally communicate with the vent line of the gas drying and cleaning system. EFFECT: expanded range of hardware components used in the process of drying and cleaning of natural gas, enhanced efficiency, reliability. 8 cl, 6 dwg