MASS-EXCHANGE APPARATUS Russian patent published in 2003 - IPC

FIELD: heat and mass exchange apparatus used for cleaning gases; chemical, petrochemical and other industries. SUBSTANCE: proposed mass exchange apparatus has vertical housing 1, gas supply branch pipe 2 and gas discharge branch pipe 3, liquid receiver 4 located in lower part of housing 1, liquid supply branch pipe 5 and liquid drain branch pipe 6, as well as gas distributing woven contact unit made in form of absorbing plate 7 including screen 8; outlet of gas supply branch pipe 2 is sunken below woven contact unit in under-screen space 9 with absorbing plate 7 including second screen 10 of larger area as compared with first one; screen 10 is located at distance "H" from first screen in way of gas flow; lower screen 8 is provided with bead 11 on upper surface; distance H m, where V_gas is gas velocity, m/s; h_s is height of bead sill of lower screen, m. Apparatus is provided with hydraulic seal 12. Upper screen 10 may be provided with bead 13 mounted on its lower surface. EFFECT: enhanced efficiency of cleaning gases at retained small overall dimensions. 2 dwg