| 摘要 |
condensation-evaporation devices of rectification columns. SUBSTANCE: condensation- evaporation section has vertical bundle of heat-exchange tubes secured in tube plates, pipe union for discharge of liquid, cylindrical shell, drain branch pipe tightly connected with pipe union of liquid discharge, cylindrical shell and contact devices. Cylindrical shell is tightly secured to lower tube plate and its part located above tube plate has height comparable with length of heat-exchange tubes. Contact devices are located in lower part of cylindrical shell. EFFECT: produced products featuring low content of high-boiling components, reduced power input. 2 ck, 1 dwg
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