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制冷机房顶部楼板与管道振动分析及控制设计

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制冷机房内通常设置有多台制冷主机和循环水泵,当机房位于噪声敏感房间正下方时,对上方区域产生的噪声和振动影响不容忽视.针对某办公建筑内制冷机房上方楼板产生的振动与噪声问题开展分析研究,首先对振源进行诊断,然后进行改造,设计管道隔振支座,最后对比改造前、后的测试数据.改造后办公室内背景噪声和振动加速度均方根值达到国家规范标准,隔振支座隔振效率良好,使原有的振动与噪声问题得到解决.该项目结果表明:当制冷机房上方为噪声敏感房间时,管道吊架不宜与楼板直接连接,应该将吊架通过隔振系统连接在梁、柱上或设置管道落地隔振支座;为保证立柱的稳定性,应将所有立柱连接起来形成系统.研究成果可为制冷机房内管道的隔振降噪提供一种效果良好的方式.
Vibration Analysis and Control Design of Top Floor and Pipeline of Refrigeration Rooms
There are usually multiple refrigeration facilities and circulating water pumps in the refrigeration room.When the refrigeration room is located directly below the noise sensitive room,the impact of noise and vibration on the upper area cannot be ignored.In this paper,the vibration and noise problems generated by the floor above the refrigerator room in an office building were analyzed.Firstly,the vibration source was diagnosed.Then the pipeline vibration isolation support was designed through modification.Comparing the test data before and after the renovation,the root mean square value of the background noise and vibration acceleration in the office above the refrigeration room after the renovation has reached the national standard,and vibration isolation support has a great vibration isolation efficiency.The original noise and vibration problems have been solved.According to the results,it is suggested that the pipe hanger should not be directly connected to the floor when there is a noise sensitive room above the refrigeration room,and the pipe hanger should be fixed on the beam or column through the vibration isolation system;Or the pipelines vibration isolation support should be installed;All vibration isolation support should be connected one-another to form a system to ensure stability.This paper provides an effective method for vibration isolation and noise reduction of pipelines in the refrigeration rooms.

vibration and waverefrigeration roomfloorpipelinevibration isolation supportnoise reduction

陈頔、韩梦涛、王凡、嵇严、胡小明

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中信建筑设计研究总院有限公司,武汉 430014

华中科技大学 建筑与城市规划学院,武汉 430074

振动与波 制冷机房 楼板 管道 隔振支座 降噪

中央高校基本科研业务费专项资金资助项目

2021XXJS053

2024

噪声与振动控制
中国声学学会

噪声与振动控制

CSTPCD北大核心
影响因子:0.622
ISSN:1006-1355
年,卷(期):2024.44(4)
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