FIELD: oil industry; oil refining plants. SUBSTANCE: proposed ejector pumping unit has separator, pump, liquid-gas jet device and pressure main line. Liquid - gas device is connected by in liquid medium inlet to pump outlet and by steam-gas pumped medium inlet to vacuum fractionating tower. Liquid-gas medium outlet of jet device is connected to separator by means of pressure main line, and separator is connected by its liquid medium outlet to pump inlet. Pressure main line is made contacting in direction of liquid-gas medium movement. EFFECT: provision of homogeneity of gas-liquid mixture moving along pressure main line with resulting reduction of energy losses in process of gas-liquid mixture movement and increased efficiency of refining process in vacuum fractionating tower. 5 cl, 2 dwg
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