From the concrete ducting the hot dirty flue gas enters the booster fan and then passes the inlet of the GGH.
从混凝土烟道来的热脏烟气通过升压风机，再通过热交换器入口进入热交换器。
2
The result is that from inlet to outlet of the blade channel, Axial fan blade effected on air flow is a gradually changed process of energy transmitting.
结果表明，从叶道的进口到出口，轴流通风机叶片对气流的作用是一个渐变的能量传递过程。
3
Vortexs are observed after the beams, which greatly influence the inlet air-flow of fan, reduces the air-flux, causes noise and wastes energy.