The pipeline noise reduction module is a noise reduction module specially designed by us for the process pipelines in gas transmission stations. During the operation, high-speed airflow noise is generated inside the pipeline. The traditional solution is to install aluminum wrapping on the site, which is inconvenient for pipeline inspection and has poor noise reduction effect. The pipeline sound absorber developed by us is detachable, is convenient for pipeline inspection and is reusable. Meanwhile, it has the advantages of noise reduction, insulation and anti-corrosion. The noise reduction capacity of the pipeline silencer is up to 25dB (A).