MOBILE GAS SUPPLY ASSEMBLY Russian patent published in 2020 - IPC F17D1/04 

FIELD: physics.

SUBSTANCE: invention relates to the field of gas distribution stations (GDS) and can be used in the period of repair, reconstruction or retooling at the GDS. Mobile gas supply unit (MGSU) performs functions of gas supply to consumer during repair. MGSU includes, as well as GDS, gas switching, cleaning, heating and reducing units. In order to connect the MGSU to the main gas line or to the movable autogas refueling unit (MARU), the switching unit comprises shut-off valves at the main and bypass gas supply lines inlet to the consumer, as well as valve for supply of gas from discharge line of main line and shut-off valve at inlet to line between supply valve and shutoff valve of main line. MARU gas feed cutout with gas pressure regulator equipped with booster and safety valve with three-way valve at inlet are built in gas supply line from PPS. Such circuit of connection of MARU provides for gas supply both along the main gas supply line and by bypass line. Since the pressure at the output of the MARU (from 25 MPa) is substantially higher than the maximum pressure in the main gas line, with respect to which the MGSU is designed, then along with the gas flow cutoff the additional line is equipped with a safety valve to ensure reliability. Adjustment of the pressure regulator of the additional line provides for the level of pressure in this line corresponding to the level of design pressure at the MGSU inlet from the main gas pipeline. Installation of gas flow meter at the outlet of bypass and main gas supply lines provides measurement of commercial gas flow at operation from any lines.

EFFECT: availability of several shut-off valves at the inlet to the additional line provides for the possibility of long-term gas supply to the consumer by connection of several MARUs.

3 cl, 1 dwg