施清清,赵旭敏,周伯儒,叶晓飞,丁少鹏
SHI Qingqing,ZHAO Xumin,ZHOU Boru,YE Xiaofei,DING Shaopeng

• 1:珠海格力电器股份有限公司
• 2:空调设备及系统运行节能国家重点实验室
• 3:广东省制冷设备节能环保技术企业重点实验室

摘要(Abstract)：

针对应用容积可变转子压缩机的多联机空调制热工作过程中，出现的室内机管路脉动嗡嗡声和室外机压缩机启动不连续撞击声问题，利用音质体验和时频分析的方法，确定了2个噪声问题的产生机理，同时通过仿真手段和理论研究提出了降噪设计方案，经过试验验证，室内机管路脉动嗡嗡声频谱主要峰值分别降低13.2，11.2 dB，室外机压缩机启动下气缸滑片处外壳位置，振动加速度时域信号幅值减小94.4%，撞击声消失。试验结果表明，降噪设计方案合理、技术可行。
For the problems of the pulsating hum of the indoor unit pipeline and the discontinuous collision of the outdoor unit compressor during the heating process of the multi-line air conditioning with variable volume rotor compressor，the mechanism of the two noise problems was determined by using the method of sound quality experience and time-frequency analysis.At the same time，a noise reduction scheme was proposed through simulation and theoretical research.The experimental results show that the main spectral peaks of the pulsating humming sound of the indoor compressor pipeline are reduced by 13.2，11.2 dB，respectively.The amplitude of the time-domain signal of the vibration acceleration is reduced by 94.4% at the casing of the sliding vane of the cylinder under the start-up of the outdoor compressor，and the impact sound disappears.The experimental results show that the design scheme of noise reduction is reasonable and feasible technically.

关键词(KeyWords)： 容积可变;压缩机;多联机空调;噪声
variable volume;compressor;multi-line air conditioning;noise

Abstract:

Keywords:

基金项目(Foundation): 广东省自然科学基金面上项目(2020A1515011386)

作者(Author): 施清清,赵旭敏,周伯儒,叶晓飞,丁少鹏
SHI Qingqing,ZHAO Xumin,ZHOU Boru,YE Xiaofei,DING Shaopeng

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