阻性片式折角消声器分析

借用消声弯头的概念及特点,对片式消声器增加折角段,将具有吸收中、高频噪声的阻性片与具有吸收低频噪声消声的膨胀室性质的折角结构共同应用在消声器中。它的片式吸声的间距、片数、片厚、片式吸声体的规格系根据消声器的截面积、流经风量、风速确定的。片式吸声体结构的大小、长度及与折角结构的组合可根据工程现场的条件灵活调整,片式吸声体与折角结构组合的个数及顺序均可形成不同的组合。

Analysis of Impedance Chip Muffler with Elbow Portions

In engineering application, the impedance muffler has the problem of failure in high-frequencies and poor effect of silencing for low frequencies. This paper provides an approach for solving the problem. Using the characteristics of the silencing elbow, the function of the muffler can be improved by adding elbow portions to the impedance chip muffler. This kind of mufflers has both the functions to absorb the high frequency noise due to the impedance chip silencer and to absorb low-frequency noise due to the elbow structure. The spacing, number and thickness of the chips and the type of sound-absorption body can be determined according to the cross-sectional area, wind flow flux and wind speed of the muffler. And the size, length and the elbow structure can also be adjusted according to engineering requirements.