消声降噪需要知道的事项

Release time：

2023/12/18 20:04

暖通空调中用到的消声器大都是片式消声器，如ZP100和ZP200系列消声器。阵列式消声器为阻性消声器，采用规格一致柱状消声体在垂直于气流方向的平面上阵列式排布，具有运输方便、布置灵活、气流适应性好、降噪频带宽、降噪量高、阻力小等优点。在相同降噪效果下，较片式消声器阻力小。在相同的通风阻力下，比片式消声器降噪量大。因此，近10年来在大量地铁项目和一些电厂项目中得到应用。

吸气消声器是压缩机降噪研究的主要方向，本文通过仿真计算与实际测试分析了消声器对压缩机及冰箱的降噪效果，验证了消声效果存在差异性的原因，得到如下结论：

鼓风机有两个主要的消声器件，一个是进口消声器，一个是出口消声器，还有一个常见的排空消声器。这些消声器对鼓风机的降噪效果有明显的影响。

（2）在进风口处加装进风消声器或消声百叶。这种降噪措施适用于施工场地比较狭促，但又必须满足热泵机组降噪且正常维修需求的工程。由于这种局部加装的消声装置，降噪效果不够显著，通常还可以在噪声源和受噪声影响区域之间设置复合吸隔声屏障，进一步控制低频噪声的空气传播。

对降噪要求高的系统，消声器不宜集中设置在一起，可以在主管、各层分支管、风口前等位置分别设置，这样做可以分别按气流速度的大小选用相应的消声器，把气流再生噪声的影响减到程度。返回搜狐，查看更多

（1）按照保护目标声环境允许标准，或降噪设计需要达到的目标，来确定的所需消声量，即所选消声器的消声性能与需要消声量相适应；

（1）在整体噪声治理思路框架上，采用隔声罩的降噪方式，使用出风消声器处理顶部排风噪声，使用进风消声器处理侧面淋水噪声，使用吸隔声板包覆设备整体。因此首先按照该设想搭建钢结构框架，框架的搭建同时考虑设备的检修需求。

某生产车间如燃气轮机、电动机、空气压缩机、离心风机、液压油泵、冲压模具、板金、柴油发动机试生产车间等强噪声生产车间，总体噪声水准很。根据消声量确定消声器长度和消声弯头的数量。消声器有效长度长,采用消声弯头时,消声效果好,但压力损失大,较高的气流速度又会产生新的噪声。水泥厂的噪声主要是设备噪声，包括风机、球磨、车间等，其影响范围包括厂房、厂区及周边住宅区，本文小编为大家介绍的降噪主要是通过噪声设备降噪和传输途径进行的。

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