Gas Distribution Station

Gas Distribution Station

 

an installation that serves to reduce gas pressure to the level required for the safe consumption of gas.

There are several different types of gas distribution stations, each for a different purpose: stations on the branch of a main gas pipeline (at the terminal portion of its branch to a populated area or an industrial destination) having a capacity of 5,000-10,000 to 300,000-500,000 cu m per hour; gas distribution stations for processing gas (removal of dust and moisture) extracted from a gas field and also for supplying gas to populated areas near the gas field; control-and-distribution points located on branches from main gas pipelines to industrial and agricultural destinations and also for supplying a ring system of gas pipelines around a city (capacities of 2,000-3,000 to 10,000-12,000 cu m per hour); automatic gas distribution stations for delivering gas to small populated areas and to sovkhoz and kolkhoz settlements, when these are located on branches from main gas pipelines (capacities of 1,000-3,000 cu m per hour); gas-regulating points (capacities of 1,000 to 30,000 cu m per hour) for lowering gas pressure and maintaining it at a preset level in high and medium pressure municipal gas networks; and gas-regulating installations for feeding gas networks or entire units with a gas consumption rate of 1,500 cu m per hour.

Gas distribution stations on main gas pipelines reduce the initial gas pressure (for example, 5 meganewtons [MN] per m2, that is, 50 kilograms-force per cm2) according to a single-, double-, or triple-stage arrangement, down to 0.1 MN/m2 or less. In an automatic gas-distribution station the pressure is reduced from 5.5 to 3·10—2 MN/m2. At gas-regulating points a high pressure (1.2 or 0.6 MN/m2) is lowered to a medium pressure (0.3 MN/m2) or a low pressure (300 mm of water gage).

IU. M. BELODVORSKII

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