变风量空调系统室内噪声研究

Research on indoor noise of VAV air-conditioning system

通过对上海某高层办公建筑变风量空调系统运行产生的噪声进行现场实测及分析,从而提出改进措施,并得出结论:在风平衡调试完成的情况下,办公区噪声影响最大的来源是空调机房内空调机组的运行,降低噪声主要取决于空调机房出墙风管封堵的好坏。另外,设计时要考虑顶棚回风风量的大小和回风管的长度。

Based on field measurement and analysis of the noise generated by the VAV air conditioning system in a high-rise office building in Shanghai,improvement measures were proposed,and it was concluded that when wind balance commissioning was completed,the biggest source of office noise impact is the operation of air-conditioning units in air-conditioning rooms.Reducing noise mainly depends on the quality of the air duct in the air-conditioning room.The design should consider the amount of return air from the ce iling and the length of the return air duct.