| 摘要 |
FIELD: oil-and-gas industry.SUBSTANCE: proposed unit comprises interconnected electric desalting unit including sets of heat exchangers and four electric hydrators, gasoline pre-evaporation unit including stripping column, reflux tank and refrigerator-condenser, atmospheric distiller unit including atmospheric column, reflux tank and refrigerator-condenser, gasoline stabilisation unit stabilising column, pump reflux tanks and refrigerator-condenser. Besides, this unit comprises crude oil feed pump, stripping columns, tubular furnaces, vacuum distiller column, reflux tank, refrigerator-condenser, stem ejection pump, six group of heat exchangers and after coolers. Note here that desalting unit comprises additionally two groups of heat exchangers. Note also that gasoline pre-stripping unit and atmospheric distillation unit comprise extra compressor and reducing throttle. Note here that unit compressor of gasoline pre-stripping unit is arranged between reducing unit and seventh group of heat exchangers of electric desalting unit. Aforesaid reducing throttle is arranged between refrigerator-condenser and seventh group of desalting unit heat exchangers, compressor of atmospheric distillation unit is arranged between atmospheric column and eighth group of desalting unit heat exchangers. Atmospheric distillation unit reducing throttle is arranged between refrigerator-condenser and eighth group of desalting unit heat exchangers.EFFECT: minimised thermal head between cold and hot flows, primary power source saving.1 dwg |
