我所于1989年进了一台国产中型高压氧仓。该仓供气系统虽附有消声器,但在氧仓进气加压时,仓内噪声强度仍达89.5dF(A)(加压速率0.01MPa/min,以下均同),严重影响了患者的情绪和生理活动,不利于治疗。为了治理噪声环境,我们设计了新的供气系统消声器,减轻了噪声危害。消声器的设计原理及结构压缩空气进气噪声是宽频带高频特性噪 I was in 1989 into a domestic medium-sized hyperbaric oxygen warehouse. Although the muffler is attached to the gas supply system in the warehouse, the noise intensity inside the warehouse still reaches 89.5dF (A) (the rate of pressurization is 0.01MPa / min, the same below) when it is pressurized by the oxygen in the warehouse, which seriously affects the patient’s Emotional and physical activity is not conducive to treatment. In order to manage the noise environment, we designed a new muffler for the air supply system to reduce the noise hazard. Muffler design principles and structure of compressed air intake noise is broadband high-frequency noise characteristics