VAPOUR RECOVERY SYSTEM DURING OIL PRODUCTS RECEPTION AND STORAGE AT OIL STORAGE TANKS Russian patent published in 2019 - IPC B65D88/06 B65D90/28 B65D90/30 

FIELD: oil industry.

SUBSTANCE: system for catching vapours when receiving and storing oil products at petroleum storage depots relates to devices for trapping oil vapours and can be used in oil industry. Invention includes separate tank for collection of vapours, main steam line with sections, refrigerating unit, compressor, relays, manometers, check valves with different opening pressure, buried reservoir, electric motor, shaft with centrifugal wheels. At the same time the buried reservoir has two sections and is partially filled in one section with low-octane component, and in the other - with gasoline A-76. Technical result is achieved by pumping of vapours by compressor, from "big" breaths into separate reservoir for collection of vapours with subsequent supply through check valve of high pressure of vapours into section of reservoir with low-octane component, which is equipped with shaft with centrifugal wheels and cooling element. At that, compressor, refrigerating unit, electric motor for shaft rotation and gate valve are switched off periodically by means of appropriate manometers and relays. Vapours from "small" breaths enter the second section of reservoir with gasoline A-76 and turn into liquid due to temperature reduction in underground reservoir.

EFFECT: mixture of light fractions of petroleum products with benzene A-76 can be used for addition of commercial grade gasoline normal-80 and A-76.

4 cl, 2 dwg