中国机械工程2025，Vol.36Issue(6)：1352-1362,1370,12.DOI:10.3969/j.issn.1004-132X.2025.06.023
正压防护服用供气背包设计及其数值模拟与实验
Design and Numerical Simulation and Experiments of Gas Supply Backpacks for Positive Pressure Protective Clothing
摘要
Abstract
At present,the function of positive pressure protective clothing is relatively single,the high internal temperature and difficult pressure control resulted in low safety and comfort.Therefore,a supporting device integrating supply/exhaust,filtration and cooling functions was proposed.The da-ta required to maintain a slightly positive pressure state within the protective clothing was tested,and the structure of the air-supply backpack was designed in modules.A heat transfer analysis was con-ducted on the semiconductor refrigeration module,and a simulation model was established to analyze the impacts of profile dimensions on refrigeration performance based on CFD(computational fluid dy-namics).The parameters of temperature and pressure were stabilized by fuzzy PID control,the trans-fer function was solved,the controller was designed and verified by Simulink simulation.The FLU-ENT simulation model of micro positive pressure protective clothing was built to analyze the distribu-tion law of flow field and temperature field in protective clothing and the influences of air supply tem-perature.The prototype of air supply backpacks was developed and the temperature and humidity of protective clothing were tested.The results show that the air supply backpacks may dehumidify to normal ambient humidity within 30 s and reduce 5℃ compared with room temperature within 100 s.关键词
正压防护服/供气背包/半导体制冷/FLUENT仿真/温度湿度测试Key words
positive pressure protective clothing/gas supply backpack/semiconductor refrigera-tion/FLUENT simulation/temperature and humidity testing分类
信息技术与安全科学引用本文复制引用
侯雨雷,李希萌,索槐,李岳,曾达幸..正压防护服用供气背包设计及其数值模拟与实验[J].中国机械工程,2025,36(6):1352-1362,1370,12.基金项目
河北省重点研发计划(23317701D) （23317701D）
广东省基础与应用基础研究基金自然科学基金(2023A1515012103) （2023A1515012103）
广东高校科研平台和项目—创新团队项目(自科)(2022KCXTD033) （自科）
