暖通室外设备噪声频谱特性及治理策略
Noise spectral characteristics and control strategy of outdoor HVAC equipment
摘要：
暖通系统给人们提供舒适人工环境的同时,所产生的噪声也影响了人们的工作和生活质量,由此引发了众多社会矛盾。本文基于典型暖通室外设备的现场实测声学数据,结合调研情况,经理论计算和声学模拟,总结了典型暖通室外设备噪声频谱特性和传播规律。并基于声学基本原理,提出了将隔声、吸声、消声和隔振等措施综合运用的噪声治理策略,以实现精准高效降噪。
Abstract：
While the HVAC system provides a comfortable artificial environment for people, the noise also affects people’s quality of work and life, which leads to many social contradictions. Based on the field-measured acoustic data of typical outdoor HVAC equipment, combined with investigation, theoretical calculation and acoustic simulation, this paper summarizes the noise spectrum characteristics and propagation rules of typical outdoor HVAC equipment. Based on the basic principles of acoustics, a noise control strategy is proposed that integrates sound insulation, sound absorption, sound reduction and vibration isolation to achieve accurate and efficient noise reduction.
Keywords:outdoor HVAC equipment; noise control; noise spectral characteristic; cooling tower; multiple variable refrigerant flow system (VRF); heat pump