| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a dust collecting device in which dust collection efficiency does not decrease even when an air amount is changed, in the dust collecting device for separating and collecting the dust in airflow by swirling the airflow.SOLUTION: A dust collection device 1 includes a vortex flow generation unit 4 and a dust collection chamber 5 for collecting and storing the separated dust. The vortex flow generation unit 4 includes: an inflow port 6 for air at one end on an upstream side; an outflow port 7 for air at the other end on a downstream side; an exhaust port 8 connected to the dust collection chamber; and an opening/closing unit 10 for opening/closing the outlet port 7. The dust collection device 1 is acquired which can maintain dust collection efficiency by opening/closing the outflow port 7 according to the amount of the air, and making airflow speed in the vortex flow generation unit constant.</p> |
