| 摘要 |
A gas scrubber of the wet collector type induces a gas flow under a negative pressure through a housing between a gas inlet and a gas outlet. The housing includes a scrubbing liquid reservoir, and means in the housing cooperating therewith to define a gas scrubbing zone above the reservoir and through which the gas moves. A tunnel open to the atmosphere extends transversely of the housing adjacent the scrubbing zone with the interior of the tunnel being at atmospheric pressure, which is higher than the gas pressure in the housing. A spinner shaft in the tunnel projects through the tunnel wall and carries a liquid diffusing spinner in the scrubbing zone. The shaft is solely supported by bearing means in the tunnel. A pump draws liquid from the reservoir and directs it against the spinner to diffuse the liquid across the scrubbing zone. By virtue of the higher pressure in the tunnel the bearings supporting the spinner are not contaminated by the scrubbing action in the housing. The spinner shaft may be free wheeling and driven by the action of the liquid impingement from the pump against the spinner.
|
