特殊消声器的种类很多,用途也十分广泛,因而我们无法详细地逐一尽述,在此仅以几种消声器的用途和基本结构为例,来说明特殊消声器的设计方法。一、排气消声器高压蒸汽或气体在排放时,会产生极强的噪声,如蒸汽锅炉、减压阀、排气阀、调节阀、压缩机、高压气罐,气体处理机等设备排气时产生的噪声就属于此类。气体的突然膨胀会导致高速喷射的湍流,辐射出宽带空气动力性噪声。例如,从蒸汽排气口辐射 There are many types of special mufflers and they are used in a wide range of applications. Therefore, we can not describe them in detail one by one. Here, we only describe the use of several mufflers and the basic structure as an example to illustrate the design of special mufflers. First, the exhaust muffler High-pressure steam or gas emissions, it will have a very strong noise, such as steam boilers, pressure reducing valves, exhaust valves, regulating valves, compressors, high pressure gas tank, gas processor and other equipment exhaust The noise generated belongs to this category. Sudden expansion of the gas can cause turbulence in high-speed jetting and wideband aerodynamic noise. For example, it is radiated from a steam exhaust port