The inlet gas stream enters the converging section and, as area decreases, gas velocity increases (in accordance with Bernoulli Equation). Liquid is introduced either at the throat or at the entrance to the converging section.
The inlet gas, forced to move at extremely high velocity in the small throat section, shears the liquid from its walls, producing an enormous number of very tiny droplets.
Particle and gas removal occur in the throat section as the inlet gas stream mixes with the fog of tiny liquid droplets. The inlet stream then exits through the diverging section, where it is force to slow down.
Venturi can be used to collect both particulate and gaseous pollutants, but they are more effective in removing particles than gaseous pollutants
Liquid can be injected at the converging section or at the throat. Thus, the liquid coats the venturi throat making it very effective for handling hot, dry inlet gas that contains dust. Otherwise, the dust would have tendency to cake on or abrade a dry throat.
All venturi scrubbers require an Entrainment separator because the high velocity of gas through the scrubber will have a tendency to entrain the droplets with the outlet clean gas stream.
Drizgas Tech is specialists in all types of venturi scrubber system. We are the leading manufacturer of venture scrubber in India for various industrial application.
A venturi scrubber consists of three sections: a converging section, a throat section, and a diverging section.
The inlet of polluted gases is passed through the converging section of the scrubber. Whereas, water containing the washed away particles and dissolved gases finds an outlet at the diverging section.