新型消声材料在某电弧试车台的降噪应用  

Noise Reduction Application of New Muffler Material in an Electric Arc Test Facility

作　　者：王熙伟 燕翔[1] 车建 WANG Xiwei;YAN Xiang;CHE Jian(Acoustic Lab of School of Architecture,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学建筑学院建筑声学实验室,北京100084

出　　处：《噪声与振动控制》2024年第6期298-302,共5页Noise and Vibration Control

摘　　要：某电弧试车台运行时因其末端排气口排放噪声较大而造成厂界超标,因为电弧试车台排气成分具有很强的腐蚀性,之前安装的传统消声材料被逐渐腐蚀,导致之前安装的消声措施出现消声失效。本项目属于技术改造工程,必须解决消声材料的抗腐蚀问题,应采用非金属材料建造消声通道。常见非金属消声材料在阻燃、材料强度、防潮性、吸声性能等方面无法全面满足本项目的要求。多孔硅砂降噪板是一种新型吸隔声板材,具有吸声和隔声的双重声学功能,本项目利用多孔硅砂降噪板的优异特点,进行板拼式蜂窝通风消声装置研发,工程应用前在实验室进行消声与通风的一系列试验分析,最终设计出一种适合本项目的消声结构并进行成功应用。利用多孔硅砂降噪板开发的非金属消声装置,开创出风道消声工程应用的一种新型的产品形式。The noise from the exhaust outlet of an electric arc test facility exceeds factory boundary emission standard,and the exhaust composition is highly corrosive.The noise reduction measures are ineffective due to the corrosion of the traditional noise reduction materials.The project belongs to technical transformation engineering,the trouble of material corrosion must be solved,so non-metallic materials should be used to build muffler duct.However,conventional non-metallic noise reduction materials can`t meet the requirements of flame retardation,material strength,moisture resistance,sound absorption performance,etc.While the cellular silicate sand noise reduction plate is a new type of sound-absorbing and soundinsulating plates.In this project,the excellent characteristics of the plate was used to carry out the research and development of honeycomb ventilation and muffler duct by means of plate splicing.The test analysis of anechoic and ventilation was completed in the laboratory,and a suitable anechoic structure for this project was finally designed and successfully applied to the project.The non-metallic anechoic structure developed using cellular silicate sand noise reduction plate has created a new product form for the engineering application of duct anechoic structure.

关 键 词：声学 多孔硅砂降噪板 通风消声 消声装置 板拼式 蜂窝 

分 类 号：TB53[理学—物理]