管路噪声的降噪方案

国内大型钢铁厂、发电厂、制药厂因输送煤气、空气，蒸汽等介质，在厂房内外布满了大直径、大流量的管道，阀门。这些管路在原设计中大多很少考虑到噪声对环境污染的问题，而管路空变、拐弯以及流速高、三通阀门组等更会因湍流、涡流等引发的振动而加大噪声值。我们在这方面经近半年多的实践，摸索出一套简单实用造价低的治理方法，更为突出的是治理效果有较大突破，可供有关单位借鉴。

Optimal Plan to Control Pipeline Noises

A great number of pipelines and valves with major diameter and highdischarge are distributed inside factory buildings to transport mediums as coal gas, air and vapor in domestic large-sizde steel factories, power factories and pharmaceutical plants. However, noisy pollution to environing was little taken into consideration in the former pipeline designing, nevertheless, impacted by the shock caused by onflow and whirlpool, the pipeline's wudden change, turn, high flow and triple valve group produce much stronger noises. After half-yearly practices, we have fcund a simple practical method that costs little and can be utilized in relative units for its superior breakthrough in administrative effect.