医院动力设备振动噪声超标改造技术研究

Study on the reformation technology of hospital power equipment with excessive vibration and noise

医院动力设备一般安装于结构地下室的混凝土基础上,设备与基础之间硬连接或安装简易橡胶垫,而管道直接吊挂在上层楼板下,动力设备工作时,其产生的振动将通过结构柱、墙及管道等传递到上层建筑结构中,容易造成上层建筑结构的振动及噪声超标。现有改造技术一方面需要设备停机,另一方面改造后减振效率较低。基于现场振动及噪声测试结果,考虑振动及噪声的传递路径,研究了动力设备零拆卸无尘化施工改造技术,施工过程中设备不停机,且减振效率较高,有效解决了各类动力设备造成的建筑结构振动、噪声超标问题。实际工程改造结果表明,经过改造后,减振效率可达78%以上,噪声可降低8~20dB,从而有效地改善了上部楼层的舒适度问题。该项改造技术,可为其他医院动力设备的振动及噪声超标改造提供参考。

Hospital power equipment is generally installed on the concrete foundation of the structural basement. The equipment is rigid connected with the foundation or installed with simple rubber pads, and the pipes are directly suspended under the upper floor slab. When the power equipment works, the vibration generated by it will be transmitted to the superstructure through the structural columns, walls and pipelines, which is easy to cause the vibration and noise of the superstructure to exceed the standard. The existing transformation technology requires equipment shutdown, and the vibration reduction efficiency is also low after transformation. Based on the field vibration and noise test results, and considering the transmission path of vibration and noise, the zero disassembly and dust-free construction transformation technology of power equipment is studied. The equipment does not stop during the construction process, and the vibration reduction efficiency is high, which effectively solves the problems of building structure vibration and noise caused by various power equipment. The results of practical engineering transformation show that the vibration reduction efficiency can reach more than 78%, and the noise can be reduced by 8~20dB, which effectively improves the comfort of the upper floor. This transformation technology can provide reference for the transformation of vibration and noise exceeding the standard of power equipment in other hospitals.