| 摘要 |
The invention discloses a bird wing type high-pressure axial flow fan vane and a counter rotating axial flow fan comprising the same. The vane comprises a vane body and a vane handle. The vane body is composed of a vane head, a vane top, a vane tail and a vane root. The windward side of the vane is a vane basin. The lee side of the vane is a vane arch. The vane is in a twisted shape from the vane root to the vane top. The vane basin of the vane is provided with an arc-shaped protrusion penetrating from the vane top to the vane root along the axis of the vane body. The fan comprises wind inlet side vanes and wind outlet side vanes. The wind inlet side vanes and the wind outlet side vanes are driven by independent motors arranged oppositely. Vane tails of the wind inlet side vanes and vane heads of the wind outlet side vanes are arranged oppositely. The vane tails of the wind inlet side vanes and the vane heads of the wind outlet side vanes are straight edges parallel to the central axis. According to the bird wing type high-pressure axial flow fan vane and the counter rotating axial flow fan comprising the same, the distance between two sets of vane wheels is shortened according to the modified vane shape structure; when the air inlet side vane wheel is operated, the air density of a counter rotating space between the air inlet side vane wheel and the air outlet side vane wheel is basically consistent, and the airflow interference caused by inconsistent spaces between the end faces of the interaction ends is obviously relieved. |
