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【英文篇名】 Test and experiment of a micropunched plate muffler 【下载频次】 ★ 【作者】 林来豫; 孙凯; 肖秋生; 【英文作者】 Lin Laiyu; Sun Kai and Xiao Qiusheng Branch 96531 of the PLA; Luoyang; Henan Province; China; 【作者单位】 解放军96531部队; 【文献出处】 暖通空调 , Heating Ventilating nbsp; 期刊荣誉：中文核心期刊要目总览 ASPT来源刊 中国期刊方阵 CJFD收录刊 【中文关键词】 微穿孔板; 消声器; 消声量; 检测; 【英文关键词】 micropunched plate; muffler; sound attenuating capacity; test; 【摘要】 指出了当前通风空调工程中使用的微穿孔板消声器由于缺乏质量监管而存在消声效果差的问题,介绍了消声器的检测方法。通过实测证实了单层微穿孔板消声器的消声量太小,必须停止使用。双层微穿孔板消声器的实测消声量也小于手册中给出的数值,工程设计中应适当增加其有效长度才能满足消声量要求。 【英文摘要】 Points out the problems of undesirable effects in operation of micropunched plate mufflers in ventilating and air conditioning projects due to lack of adequate quality supervision, and explains an effective testing method for mufflers. Based on actual measurements, proves the sound attenuating capacity of the single-layer micropunched plate muffler is very limited, and therefore its usage should be terminated. Tests the double-layer micropunched plate muffler, the sound attenuating capacity is still lower t...