| 摘要 |
<p>A two stage extracting blower that cleans liquid and solid contaminants from supply air and provides high velocity air for cooling equipment, personnel and/or structures. In a first air cleaning stage (70), the blower uses air velocity and the centrifugal force of a rotating impeller to separate heavier contaminants entrained in a dirty air stream into a rear partitioned chamber of the blower housing. In a second air cleaning stage (80), the blower uses centrifugal forces imparted by the impeller (20) on lighter contaminants to cause the contaminants to be collected in a skimmer (130) provided in the partially cleaned air stream prior to release of the air stream from the blower.</p> |
