摘要
目的:研究并设计一种可应用于集装箱式生物隔离方舱的负压环境,以满足在陆、海、空多式联运转运过程中及空运条件下箱内的负压环境稳定及压差动态智能调控.方法:综合分析国内外传染病负压隔离装备的压差设计规范及研究成果,设计一种动力分布式无风道通风系统,通过预设压力冗余、传感器实时监测以及压力动态跟随,实现在空运过程中集装箱内的负压稳定和智能调控.结果:设计的集装箱式生物隔离方舱负压环境经测试,箱内清洁区、缓冲区、污染区、医务人员通道和患者通道的"三区两通道"各区压差满足预设要求,清洁区室外、清洁区卫生间、缓冲区二更的清洁区卫生间、缓冲区一更的污染区、污染区卫生间和污染区室外的压差分别为34.2、38.8、-8.0、-31.7、-15.1和-44.6 Pa.通过箱内布设的传感器及智能显控设备,测试验证箱内各区压差动态能够满足生物安全三级实验室(BSL-3)要求.结论:箱内各区稳定的负压环境和智能压差调控,使集装箱具有更高的生物安全特性,有效保障烈性传染病患者全域安全转运及空运条件下的转运救治.
Abstract
Objective:To research and design a negative pressure environment that can be applied in container type of biological isolation shelter,so as to meet the stable negative pressure environment and dynamic intelligent regulation of pressure difference in the container during multimodal transportation,especially under air freight conditions.Methods:The design specifications and research achievements of pressure differences of negative pressure isolation equipment for infectious diseases at home and abroad were comprehensively analyzed.And then,one kind of power-distributed ventilation system without air duct was designed to achieve.The preseted pressure redundancy,real-time monitoring of sensors and dynamic follow-up of pressure were used to realize stable and intelligent regulation of negative pressure within the container during air freight.Results:After testing,the pressure differences of each region of the"three regions and two channels"included clean region,buffer region,contamination region,medical staff passage and patient passage within container type of biological isolation shelter under the negative pressure environment could meet the preseted requirements.The values of pressure differences at the outside of room of clean region,the toilet of clean region,the toilet of clean region of the second dressing room of the buffer region,the contamination region of the first dressing room of the buffer region,the toilet of contamination region and the outside of the room of contamination region were respectively 34.2,38.8,-8.0,-31.7,-15.1 and-44.6.The conditions of the pressure differences within each region of container,which dynamically met the requirements of Biosafety Level-Ⅲ(BSL-3)laboratory,were tested through the sensors,and intelligent display and control equipment that deployed inside of container.Conclusion:The stable negative pressure environment and intelligent regulation for pressure difference in each region of the container can take container to have more high biosafety characteristics,which can effectively ensure the safe transportation of whole region for patients with severe infectious diseases,and the transport and treatment under air freight condition.
国家科技期刊平台
NSTL
万方数据