Take centrifugal fan spiral case of water conservancy diversion structure

Take centrifugal fan spiral case of water conservancy diversion structure, including bounding wall, two curb plates and flange, the bounding wall comprises straightway and segmental arc, is provided with the guide plate on the bounding wall, and specifically, the guide plate is installed on the straightway of bounding wall, can stabilize near the air current in centrifugal fan spiral case air outlet effectively, reduction airborne noise, improvement fan operation efficiency. 带导流结构的离心风机蜗壳，包括围板、两个侧板和法兰，围板由直线段和弧形段组成，围板上设置有导流板，具体地，导流板安装在围板的直线段上，能有效地稳定离心风机蜗壳出风口附近的气流，降低空气噪声，提高风机运行效率。