METHOD OF VACUUM GENERATION FOR PETROLEUM DISTILLATION DEVICES AND VACUUM GENERATION SYSTEM Russian patent published in 2015 - IPC C10G7/06 B01D3/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil refining industry, namely to the method of vacuum generation in petroleum distillation devices and to vacuum generating system of devices using the given method. The method of vacuum generation includes pumpdown from devices and stage compression with partial condensation of vapour-gas mixture containing gases, vapours of water and liquid hydrocarbons, using pump ejecting vacuum generation system and the circulating working fluid, partially refreshed by inflow, forcing circulation of working fluid along the circuit, comprising main, conjugate and mated parts of the circulation circuit including, at least, first jet ejector in the main part, at least, the second jet ejector and main separator under pressure preferably higher atmospheric one in the conjugate part and, at least, vacuum separator, heat exchange device and high-pressure pump in the mated part, and also containing the lines for discharge from the circulation circuit of gases, water and hot water tracing return, as balance excess of working fluid. Meanwhile the partial separate evacuation of working fluid from the main separator is performed by means of its supply to the contact device installed the vacuum separator, and the gas-vapour is supplied into jet ejectors in parallel with ejecting jet of the working fluid.

EFFECT: offered devices allow to improve performance of the vacuum generating system, increase the depth of generated vacuum or to decrease the amount of working fluid, circulating in the system.

28 cl, 2 dwg