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作 者:刘文龙 张蕾 张建伟 邵明伟 孙盛雷 万升理 LIU Wenlong;ZHANG Lei;ZHANG Jianwei;SHAO Mingwei;SUN Shenglei;WAN Shengli(Institute of Basalt Fiber in Eco-Application,School of Environmental Science and Engineering,Qingdao University,Qingdao 266071,Shandong,China;Zhongke Basalt Fiber New Material Technology Co.,Ltd,Beijing 100029,China;Shandong Dahu New Material Technology Co.,Ltd,Jinan 250024,Shandong,China)
机构地区:[1]青岛大学环境科学与工程学院玄武岩纤维生态应用研究院,山东青岛266071 [2]中科石源新材料科技(北京)有限公司,北京100029 [3]山东大湖新材料有限公司,山东济南250024
出 处:《声学技术》2025年第1期116-121,共6页Technical Acoustics
基 金:省部共建生物多糖纤维成形与生态纺织国家重点实验室(青岛大学)开放课题(RZ2200002491);青岛大学学科建设人才项目(DC2100004477)。
摘 要:玄武岩纤维是一种绿色环保的无机纤维材料,其多孔结构被证实具有较好的吸声性能。为了探究掺玄武岩纤维毛毡的隔声效果,将掺玄武岩纤维毛毡与普通棉纺纤维毛毡包裹在同一个变频压缩机上并测试在多种工况和不同工作频率下的噪声大小,分析掺玄武岩纤维毛毡对变频压缩机的降噪作用。在同一室外工况下,变频压缩机的噪声随着其工作频率的升高而升高。在变频压缩机频率运行的低频段45 Hz、中频段65 Hz和高频段85 Hz所对应三个工作频率时的噪声都随着室外侧干球温度的上升有小幅度的升高。掺玄武岩纤维毛毡与普通棉纺纤维毛毡对变频压缩机的隔声效果在高频段均好于低频段。相同工作频率下,掺玄武岩纤维毛毡相对于普通棉纺纤维隔声毛毡具有更好的降噪效果,且在室外侧干球温度较低时隔声效果更好。文中研究可为玄武岩纤维在降低噪声污染应用方面提供参考。As a kind of green inorganic fiber material,basalt fiber has been proved to possess excellent sound-absorbing performance for its porous structure.To explore the sound insulation effect of basalt fiber felt,basalt fiber felt and ordinary cotton fiber felt are wrapped in the same inverter compressor in this research,the noise of basalt fiber felt is tested and analyzed under various working conditions and different operation frequencies.Results reveal that under same outdoor working condition,the noise of inverter compressor increases with the increase of its operation frequency.Moreover,the noise values increase slightly with the increase of the outdoor side dry bulb temperature at all three operation frequencies corresponding to 45 Hz in the low frequency band,65 Hz in the middle frequency band and 85 Hz in the high frequency band inverter compressor.The sound insulation effect of basalt fiber felt and cotton fiber felt in the high frequency band of inverter compressor is better than that in the low frequency band.Especially,basalt fiber felt has better noise reduction effect than ordinary cotton fiber soundproof felt at the same operation frequency,and the sound insulation effect is also better when the outdoor side dry bulb temperature is low.This study can provide a reference for the application of basalt fiber in reducing noise pollution.
分 类 号:X593[环境科学与工程—环境工程]
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