PLANT FOR CLEANING GASES FROM SOLVENT VAPORS Russian patent published in 2007 - IPC B01D5/00 B01D7/02 

FIELD: cleaning gases from solvent vapors converted into condensate suitable for further use; mechanical engineering, petrochemical, chemical and other industries.

SUBSTANCE: proposed plant includes hermetic chamber 1 with gas exhaust branch pipe 2 in its upper part and drain branch pipe 23 fitted in lower bottom 22, gas inlet 4 and inlet branch pipe 5 provided with swirler 6 with radial outlet. Secured coaxially with inlet branch pipe 5 is circular collector 7 for cryogenic fluid with inlet branch pipe 8. Contact heat exchanger 9 is formed by truncated taper ferrule 10 whose larger base is secured to upper bottom of chamber through circular collector 7 and lesser base is provided with widening attachment 11 directed towards lower part of chamber. Mounted between contact heat exchanger and side wall of chamber 1 is circular filter 12. Inner wall of cryogenic fluid collector 7 has tangential outlet holes opposite which circular guide made in form of projection on bottom 3 is located. Heating heat exchanger 24 and bottom filter 20 are mounted in lower part of chamber. Heat exchanger is provided with central body 17 located below swirler 6 of inlet branch pipe 5 and screw drive 19 for motion along heat exchanger axis forming circular passage for separated suspension and performing function of pressure fluctuation damper, thus making it possible to increase flow rate of cryogenic fluid at increased concentration of solvent vapor in gas being cleaned and flow section for discharge of suspension formed at dispersion and to reduce flow rate of cryogenic fluid at reduced concentration.

EFFECT: enhanced efficiency.

7 cl, 3 dwg