| 引用本文: | 郑洁,谢柱维,田亚军,卢军.一种新型隔音通风装置的性能分析[J].哈尔滨工业大学学报,2020,52(4):195.DOI:10.11918/201901053 |
| ZHENG Jie,XIE Zhuwei,TIAN Yajun,LU Jun.Performance analysis of a new sound insulation ventilation device[J].Journal of Harbin Institute of Technology,2020,52(4):195.DOI:10.11918/201901053 |
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| 摘要: |
| 针对交通噪声对人体听力、血压及心血管系统产生的不良影响,降低交通噪声干扰与实现室内自然通风成为临街建筑亟待解决的关键性技术难题. 为有效解决此技术难题,设计了一种新型隔音通风装置,并建立了针对该装置的隔音通风模型及装置新风量计算模型；根据简化的隔音通风模型,建立了Simulink仿真模型；通过隔声实验分析了不同环境噪声及频率对装置隔声性能的影响,将通风实验数据与Simulink仿真结果进行对比,对Simulink仿真模型的准确性进行了验证；利用Simulink仿真模型研究了通风量及通风腔室体积对装置通风效果的影响,提出了改善装置经济性的优化方案,并模拟了优化后的装置通风效果. 结果表明: 装置运行时室内噪声与关闭窗户时相当,尤其对于中、高频环境噪声,装置的隔声效果更理想；Simulink仿真模型能较好地反映装置的通风效果,当通风腔室体积与经济通风量匹配时,装置的经济性最佳；采用进一步优化后的装置,单人间卧室新风量能达到35.16 m3/h,CO2体积分数可控制在1 030×10-6范围内,满足室内空气质量要求. |
| 关键词: 隔音 通风 噪声 CO2 仿真 |
| DOI：10.11918/201901053 |
| 分类号:TU87 |
| 文献标识码:A |
| 基金项目:科技部国家重点研发计划(2016YFC0700705) |
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| Performance analysis of a new sound insulation ventilation device |
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ZHENG Jie,XIE Zhuwei,TIAN Yajun,LU Jun
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（School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China）
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| Abstract: |
| Due to the adverse effects of traffic noise on human hearing, blood pressure, and cardiovascular system, reducing traffic noise interference and realizing indoor natural ventilation have become the key technical problems of street-facing buildings. To effectively solve this problem, a new sound insulation ventilation device was designed, and a corresponoling sound insulation ventilation model as well as a calculation model of fresh air volume was established. According to the simplified model of sound insulation ventilation, a Simulink simulation model was constructed. Effects of ambient noise and frequency on the sound insulation performance of the device were analyzed through experiments. The ventilation experimental data were compared with the simulation results to verify the accuracy of the Simulink simulation model. Influence of ventilation volume and ventilation chamber volume on the ventilation effect of the device was studied by Simulink simulation model. Then an optimization scheme was put forward, and the ventilation effect of the optimized device was simulated. Experiment results show that the indoor noise of running device was approximately the same as that when the window was closed. The sound insulation effect of the device was more ideal for medium and high frequency ambient noise. The Simulink simulation model could reflect the ventilation effect well. When the ventilation chamber volume was matched with the economic ventilation volume, the economic efficiency was the best. By adopting the further optimized device, the fresh air volume of single bedroom could reach 35.16 m3/h and the CO2 volume fraction could be controlled within 1 030×10-6, which meets the requirements of indoor air quality. |
| Key words: sound insulation ventilation noise CO2 simulation |
