离心风机的出口大小对风机的风量和风压有什么影响吗?



apple：引风机一般控制风机进口，鼓风机一般控制出口，进出口大小均影响风量和风压。
Apple: the induced draft fan generally controls the fan inlet, the blower generally controls the outlet, and the size of the inlet and outlet affect the air volume and pressure.


hallow1688：出口小输出流量小，风机内压力增大，输出压力和输出口的流形有关系，有渐谁缩出口和渐扩出口，和等等径出口，渐缩输出压力小，速度高。渐扩输出压力大，速度低，等径压力速度几乎不变(不考虑负载形式)。
Hallow1688: the outlet is small, the output flow is small, the pressure in the fan increases, and the output pressure is related to the manifold of the output port. If there is a gradually shrinking outlet and gradually expanding outlet, and an equal diameter outlet, the gradually shrinking output pressure is small and the speed is high. The output pressure of the gradual expansion is large and the speed is low, and the speed of the equal diameter pressure is almost constant (regardless of the load form).


kobe1984：这个题目也太宽泛了吧，至少也要说明是什么性质的影响因素吧，比如是指风机结构方面的，还是指管路调节方面的因素呢？
Kobe1984: this topic is too broad, at least it should also explain what kind of influencing factors, such as fan structure or pipeline regulation?


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