PETROLEUM PRODUCT VAPOUR RECOVERY SYSTEM FOR TANKS AT FUEL MARKET FACILITIES

摘要

The invention relates to petrochemical industry and is intended for use at tankfarm facilities and fuel-filling stations. The technical results include lower fuel losses, higher degree of vapour-air mixture of air, and better environmental situation. A system 1 comprises a tank 2 for petroleum products, a gas-equalizing line 3 with a gasholder 4, a condensate collector tank 5, a closed process module 6 with an additional gasholder 7 and a recovery conveyor 8 for separation of vapour-air mixture (VAM). The conveyor 8 is built in the gas-equalizing line 3 and is provided with a pipeline 9 for vapour-air mixture returning to the petroleum product tank 2. The gasholder 7 is connected through a shutoff valve 10 with a cock 11 of a fuel-dispensing unit 12. The petroleum product tank 2 comprises a lid 13 with pipelines 14 connected to drain equipment 15, the lid 13 being connected, by means of a breather pipeline 17 with a breather valve 16, through a shutoff valve 21, to the gasholder 4 of the gas-equalizing line 3.