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带有固体微粒的气流进入烟气透平,在静止与旋转叶列槽道内,除极细小颗粒基本上随气流一起运动造成比单纯燃气有较大的粘性作用与粘性损失外,较大一些的颗粒必然会有不同于主气流的速度,在叶片槽道内有特定的三元运动轨迹,通过动量及热量交换,影响气流作功能力,并且由于在槽道内碰撞弹跳,对叶片和壳体进行冲蚀磨损。叶片的磨损速率和许多因素有关,如机体与微粒材料性质、微粒的大小、形状、浓度与速度、碰撞弹跳方向和撞击几率等。如果微粒运动轨迹使叶片某一部位有较大撞击几率,这一部分的磨损会加剧。另一现象是随着叶片通道中气流的转弯、加速、二次流和涡流的产生、冷却
The gas flow with solid particles enters the flue gas turbine. In the static and rotating vane channels, except for the extremely small particles that basically move with the gas flow, they have greater viscous effect and viscous loss than the pure gas. Larger Particles will inevitably have a speed different from that of the main gas flow. There is a specific ternary movement path in the vane channel. Through the exchange of momentum and heat, the air flow will affect the work function of the air flow, and as the collision bounces in the channel, Erosion wear. Blade wear rate and many factors, such as body and particle material properties, particle size, shape, concentration and speed, the direction of the collision bounce and impact probability. If the particle trajectory of a blade to a greater probability of impact, this part of the wear and tear will intensify. Another phenomenon is that as the air flow in the vane channel turns, accelerates, secondary flow and eddy current generation, cooling