声波反吹清灰特性的研究(一)

Study on properties of reversegas sonic cleaning(Ⅰ)

利用低频信号发生器和电磁扬声器产生的声波，实验研究了在不同强度和不同频率的声波作用下滤布产生的受迫振动以及对滤袋进行声波反吹清灰的效果。结果表明，滤布的振动以及滤袋的残余压力降低率（ＰＤＲ）和清灰周期延长率（ＰＴＥ）随声波频率的减小和声压的增大而增大。

By means of sound waves generated from the low frequency signal generator and the electromagnetic loud speaker, the experiment deals with the forced vibration which the cloth produces under the sound wave action of different intensity and frequency, and the effect on the patch undergoing reverse gas sonic cleaning. The results obtained demonstrate that the cloth vibration, the residual pressure drop rate and the cleaning cycle extention rate of the bag increase as the sound frequency decreases or as the sound pressure increases.