TRANSPORT NITROGEN GENERATOR FOR OIL AND GAS INDUSTRY Russian patent published in 2002 - IPC

FIELD: fire-fighting equipment used in oil extraction and adjacent branches of industry. SUBSTANCE: nitrogen generator has membrane-type gas separating unit adapted for producing nitrogen and provided with air admission opening and nitrogen outlet end, compressor and control system arranged on lorry chassis. Compressor 2 is made multiple stepped. Air delivered from, for example, penultimate stage of compressor is supplied to inlet end of gas separating unit 3 equipped with air cleaning system for removal of vapors and drops of moisture 4 from air and with fine filter 5. Nitrogen outlet end of gas separating unit is communicating with, for example, terminating stage of compressor. Nitrogen generator is used in oil well development, as well as for performing preventive and repair works in gas pipelines. EFFECT: improved hydrodynamic characteristics of separating gas in gas separating unit and increased efficiency in ignition prevention. 1 dwg