| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact duct fan capable of improving maintenance performance in inspecting centrifugal air blowers from an opening for maintenance and capable of reducing input, with respect to the duct fan incorporating the plurality of centrifugal air blowers. <P>SOLUTION: A partitioning plate 19 partitioning a machine body suction port 1 side and a machine body supply port 2 side, is disposed in a machine body 3, two centrifugal air blowers 10 are disposed back and forth toward the opening 18 for maintenance, and the centrifugal air blowers 10 on a side far from the opening 18 for maintenance is disposed closer to the machine body suction port 1 side than the centrifugal air blower 10 on a side close to the opening 18 for maintenance, so that its impeller can be seen through the opening 18 for maintenance, and thus the maintenance of the plurality of centrifugal air blowers 10 can be easily and independently performed from the opening 18 for maintenance, which improves maintenance performance, makes the duct fan compact, and reduces the input. <P>COPYRIGHT: (C)2013,JPO&INPIT |
