自激振荡脉冲射流曝气器的实验

Mechanism of Self-excited Oscillation Pulsed Jet Aerator

根据流体力学中边界层理论和旋涡理论,自吸式自激振荡脉冲射流曝气器利用自激振荡腔室代替现有曝气器中的混合管,使吸入的空气和需氧水体在自激振荡腔室内获得充分的搅拌、混合和充氧,以脉冲流的方式通过特殊扩散管释放.理论分析和工业性初步实验表明,该曝气器具有优良的搅拌、混合和曝气性能,并从扩散管喷射出的需氧水体具有较强的脉冲效应.

Based on the theory of boundary layer theory and vortex theory of fluid mechanics, a self-suction self-excited oscillation pulsed jet aerator is introduced . This new type of jet aerator adopts self-excited oscillation cavity to replace the traditional mixing tube, and forces air and oxygen-demand water to intermix, compound and oxygenize violently in the cavity under the effect of self-excited oscillation, eject through the special shaped tail tube in the pulsed mode. Theoretical analysis and preliminary industrial experiments show that the new type of jet aerator has an excellent effect of intermixing, compounding and aerating, and that the oxygen-demand water ejected through the special shaped tail tube has an intensive pulsation effect.