| 摘要 |
FIELD: gas-filling compressor stations for automobiles. ^ SUBSTANCE: proposed gas-filling compressor station includes natural gas compression system for filling the automobile reservoirs with natural gas. Part of high-pressure air compressed in compressor is directed through preliminary recuperative heat exchanger. Then gas is additionally cooled in heat exchanger-evaporator by evaporating coolant, Freon or propane for example and is divided into two flows after low-temperature recuperative heat exchanger in vapor compression refrigerating machine. One flow is fed through throttle valve to receiver-separator where finished product-liquefied natural gas- is separated in form of liquid phase and then to storage reservoir and technological reservoir. Second flow after passing the throttle valve is combined with cold vapor escaping from receiver-separator in form of return flow giving cold to direct flow in recuperative heat exchangers and returns to compressor suction end to which vapor of liquefied natural gas is fed from drainage lines of storage reservoir and technological reservoir. Both reservoirs are equipped with individual supercharging systems for supercharging the reservoirs from compressor. ^ EFFECT: maximum loading of equipment. ^ 2 cl,, 1 dwg |
