FIELD: process engineering.;SUBSTANCE: proposed device comprises drain pipelines with communicated with tank inlets and drain manifold. Booster evacuated tank is made up of separate sealed heated compartments connected to manifold. Top section of every compartment is communicated with vacuum line while bottom section communicates with intake main line of pump. Sections of pipes inside compartments are not recessed. Said sections are perforated on fluid mirror side and have their ends stopped.;EFFECT: higher efficiency.
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