牙科气溶胶负压吸附消杀设备管道气动噪声研究  

Research on pneumatic noise in the pipeline of dental aerosol negative pressure adsorption and disinfection equipment

作　　者：李玉刚 杨林[1] LI Yugang;YANG Lin

机构地区：[1]贵州装备制造职业学院,贵州贵阳550014 [2]贵州大学机械工程学院,贵州贵阳550025

出　　处：《现代机械》2024年第4期63-68,共6页Modern Machinery

基　　金：贵州省科技支撑计划项目:口腔诊疗微生物气溶胶吸附与高能离子复合消杀装备研制与应用(黔科合支撑[2022]一般196);数据中心机房轨道式智能巡检机器人装备研制(黔科合支撑[2024]一般185)。

摘　　要：针对牙科诊疗过程中气溶胶负压吸附设备运行造成诊疗环境噪声污染问题,本文通过研究现有负压吸附消杀设备结构组成与运行原理,分析噪声来源;选用非平衡壁面RNG k-ε湍流模型,结合SIMPLEC算法,基于Ansys Fluent流体力学有限元分析软件分析吸附管道气动噪声。根据分析结果,提出结构优化方案,并通过对比优化前后吸附管道流场压力、速度云图和平均噪声强度,验证方案可行性。实验结果表明:通过采用吸附管道平滑过渡结构,有效降低了气动噪声,提高了口腔疾病患者牙科诊疗舒适度。Aiming at the problem of noise pollution generated during the operation of the negative pressure adsorption and disinfection equipment in the dental treatment environment,this paper analyzed the sources of noise by studying the structural components and operational principles of existing negative pressure adsorption and disinfection equipment.Furthermore,the pneumatic noise in the adsorption pipeline was analyzed by using the non-equilibrium wall RNG k-ε turbulence model with the SIMPLEC algorithm based on Ansys Fluent fluid dynamics finite element analysis software.According to the analysis results,a structural optimization scheme was proposed.The feasibility of the scheme was validated through comparison of the flow field pressure,velocity cloud diagram,and average noise intensity of the adsorption pipeline before and after optimization.The experimental results indicated that,by adopting a smooth transition structure in the adsorption pipeline,the pneumatic noise was effectively reduced,thereby enhancing the comfort degree of patients.

关 键 词：负压吸附消杀设备 气动噪声 吸附管道 FLUENT 平滑过渡 

分 类 号：U270[机械工程—车辆工程]