AIR SEPARATOR PLANT RECTIFICATION UNIT Russian patent published in 2005 - IPC

FIELD: low-temperature air separator plants.

SUBSTANCE: proposed rectification unit of air separator plant contains upper rectifying tower with built-in condenser-evaporator and lower rectifying tower. Condenser-evaporator is made up of rigidly interconnected sections. Each section is furnished with heat exchange element with condensing medium inlet and outlet branch pipes and boiling medium bath. Bats of heat exchange elements are installed coaxially. Bottom of upper rectifying tower forms bath of lower heat exchange element. Funnel is rigidly secured over heat exchange element in section of upper heat exchange element. Smaller diameter of funnel is equal to or less than diameter of bath of upper heat exchange element, and distance between upper sections of bath and heat exchange element is defined by equation a=(0-0.3)B where a is distance between upper sections of bath and heat exchange element; B is height of heat exchange element.

EFFECT: provision of compact rectification unit of large capacity.

4 cl, 6 dwg