离心式屋顶风机因受叶轮特性限制一般均为排风机，其特点为余压较高，主要应用于局部排风系统。因该类屋顶风机无蜗壳，叶轮高速旋转所产生的空气动压不能有效的转变为静压，因而空气动力性能很不理想，耗电量较高，仅用于排风阻力较大的系统，一般全室通风系统应橡胶托辊 槽型托辊 皮带托辊 平行托辊 保定搬家 保定搬家电话 保定搬家公司 保定搬家 铜鼎 铜狮子 尽可能避免采用此种屋顶风机。
Centrifugal roof fans are generally exhaust fans due to the limitation of impeller characteristics, which are characterized by high residual pressure and mainly used in local exhaust system. Because this kind of roof fan has no volute, the aerodynamic pressure produced by the high-speed rotation of the impeller can not be effectively converted into static pressure, so the aerodynamic performance is not ideal, the power consumption is high, and it is only used in the system with large exhaust resistance. Generally, this kind of roof fan should be avoided in the whole room ventilation system as much as possible