基于应急救援的远程测控便携式制氧机的研制

Development of Portable Oxygen Generator for Remote Control of Disaster Scene

目的研发一套适用于灾害现场紧急医学救援的可远程测控的便携式制氧机系统。方法综合优化变压吸附技术,通过供给大流量清洁干燥气源和开发相关核心组件,提高制氧主机空气源的有效使用回收率,实现氧气浓度、产氧流量、产氧压力指标实时监控;通过轻量化设计部件及结构,符合灾害现场特点的便携式可移动特征;结合多变自调整式产氧设计,适应现场环境的广谱适应性;通过数字化控制系统人机界面与通用分组无线技术实时在线监控及浏览参数,构建便捷、稳定的智能操作平台,开发远程监控端实时与客户互动设备的运行状态信息。结果应急场景模拟演练结果表明,该便携式制氧机可移动(95 kg)、输出压力稳定(0.38~0.45 MPa)、流量稳定(15~20 L/min),连接本便携式制氧机可以基本保障急救呼吸机的供氧需求。当呼吸机输出氧浓度达到90%以上时,便携式制氧机实际测得氧气浓度为94.4%、产氧流量为21 L/min、产氧压力为0.404 MPa,输出氧气的理化指标符合GB 8982-2009《医用及航空呼吸用氧》标准。同时在运行过程中,触摸屏人机界面可以实时显示便携式制氧机运行状态,以及自行设置运行参数,实现远程操作并实时监控运行状态。结论研制的远程测控便携式制氧机装置工作响应速度快、转运方便、制氧效率高、操作简便,符合便携式的要求,可用于灾害环境下紧急医学救援的气体供应。

Objective To design a set of portable oxygen generator system that can remote measurement and control for disaster on-site emergency medical rescue.Methods The pressure swing adsorption technology was comprehensively optimized to improve the effective use recovery rate of the air source of the oxygen generator by supplying large flow of clean and dry air source and developing related core components,so as to achieve the real-time monitoring oxygen concentration,oxygen production flow and oxygen production pressure indicators;combined with variable self-adjusting oxygen generation design,adapt to the field environment of broad spectrum adaptability;through the digital control system man-machine interface and general packet wireless technology,real-time online monitoring and browsing parameters,to build a convenient and stable intelligent operating platform,develop the remote monitoring terminal real-time interactive equipment operating status information with customers.Results The simulation results of emergency scenarios showed that the portable oxygen generator could move(95 kg),the output pressure was stable(0.38-0.45 MPa),and the flow rate was stable(15-20 L/min).The connection of the portable oxygen generator can basically guarantee the oxygen supply demand of the emergency ventilator.When the output oxygen concentration of the ventilator reached more than 90%,the portable oxygen generator actually measured the oxygen concentration of 94.4%,oxygen generation flow rate of 21 L/min,oxygen generation pressure of 0.404 MPa,the physical and chemical indexes of the output oxygen were in line with GB 8982-2009 Medical and Aviation Respiratory Oxygen Standard.At the same time,during the operation,the touch screen man-machine interface could display the running state of the portable oxygen generator in real time,and set the running parameters by itself,so as to realize remote operation and real-time monitoring of the running state.Conclusion The remote measurement and control portable oxygen generator device has the advantages of fast response,convenient transfer,high oxygen production efficiency and simple operation.It meets the requirements of portable device and can be used for emergency medical rescue gas supply in disaster environment.