AIR BLOWING DEVICE

• Main Author: ONO TOSHIYA
• Format: Patent
• Language: English; Japanese
• Published: 10.12.2020
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

To obtain an air blowing device that realizes both improvement in maintainability of a drain pan and quietness.SOLUTION: An air blowing device 50 comprise: a centrifugal air blower 22 comprising a fan side air intake port 7, a motor side air intake port 8, and an exhaust port; an outside casing 3 having a box shape comprising a bottom surface 3d, housing the centrifugal air blower 22, comprising a suction port 5, a discharge port 6, and an air intake passage 71 extending between the suction port 5 and the fan side air intake port 7 and the motor side air intake port 8 of the centrifugal air blower 22, and in which a drain hole 10 penetrating the bottom surface 3d is formed in a portion on the air intake passage 71 out of the bottom surface 3d; a drain pan installed under the outside casing 3 so as to be opposed to the drain hole 10; and a drain cover 16 installed on the bottom surface 3d, and covering the drain hole 10 while having a gap between itself and the bottom surface 3d.SELECTED DRAWING: Figure 2 【課題】ドレンパンのメンテナンス性の向上と静粛性とを両立させた送風装置を得ること。【解決手段】送風装置５０は、ファン側吸気口７及びモータ側吸気口８と排気口とを備えた遠心送風機２２と、底面３ｄを有する箱状であり、遠心送風機２２を収容し、吸込口５と吐出口６と、吸込口５と遠心送風機２２のファン側吸気口７及びモータ側吸気口８との間に跨がる吸気風路７１を備え、底面３ｄのうち吸気風路７１上の部分に底面３ｄを貫通するドレン穴１０が形成されている外側ケーシング３と、外側ケーシング３の下方にドレン穴１０に対向して設置されたドレンパンと、底面３ｄに設置されて、底面３ｄとの間に隙間を有する状態でドレン穴１０を覆うドレンカバー１６とを備える。【選択図】図２