局部强热辐射环境条件下热防护服性能研究  

Study on the Performance of Thermal Protective Clothing Under A Local Intense Thermal Radiation Environment

作　　者：彭振 王月梅 张茹影 蒋和营 程向明[1,2] 邵建涛[3] PENG Zhen;WANG Yuemei;ZHANG Ruying;JIANG Heying;CHENG Xiangming;SHAO Jiantao(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;Suzhou University of Science and Technology,Jiangsu Province Engineering Research Center of Construction Carbon Neutral Technology,Suzhou 215011,China;China Construction Eighth Engineering Division Corp.,Ltd.,Shanghai 200112,China)

机构地区：[1]苏州科技大学环境科学与工程学院,苏州215009 [2]苏州科技大学江苏省建筑碳中和技术工程研究中心,苏州215011 [3]中国建筑第八工程局有限公司,上海200122

出　　处：《建筑科学》2024年第10期261-266,共6页Building Science

基　　金：国家自然科学基金“高温热源暴露环境个体热防护系统与性能评价”(52208117);“江苏省建筑碳中和技术工程研究中心资助课题”(JZTZH2023-0401)。

摘　　要：在很多实际生产及生活环境中存在高温热源,作业人员周围呈现局部强热辐射热环境。该类热环境空气温度高且热辐射强度大,极易导致人体热应力产生,进而引发热安全风险。该类热环境下减缓人体热应力的个体热防护需要同时兼顾阻挡热辐射对人体的加热作用并促进人体向环境散热,目前相关研究较少。本研究设计了一款将热辐射反射与通风相结合的热防护服,并通过人体热应力实验对其性能进行了测试。结果表明,在背景空气温度34℃、热辐射强度1.5 kW/m^(2)条件下暴露1 h后,热防护服相比普通工服工况下的热应力相关生理参数(核心温度增加量,心率增加量,出汗量)均显著降低,主观热感觉更向中性方向偏移,且热舒适度和耐受度均显著提高,可显著的减弱人体热应力。同时,热防护服相比通风服也有显著的热应力减弱效果。As there are high-temperature heat sources in many production and living environments,operators are in a thermal environment with local intense heat radiation.Such a thermal environment has high air temperature and high thermal radiation intensity,which can easily lead to human thermal stress and then cause thermal safety risks.Individual thermal protection to reduce human thermal stress in the thermal environment needs to simultaneously block the heating effect of thermal radiation on the human body and promote the heat dissipation from the human body to the environment.Currently,relevant research is scarce.In this study,a thermal protective jacket was designed,which combines thermal radiation reflection and ventilation.Moreover,its performance was tested with 1h exposure by human heat stress experiments at the air temperature of 34℃and the thermal radiation intensity of 1.5 kW/m^(2).Compared with normal jackets,the thermal protective jacket can significantly reduce human thermal stress.Heat stress-related physiological parameters,including increase in core temperature,increase in heart rate and amount of sweat,were significantly reduced.The subjective thermal sensation shifted toward thermal neutrality,and thermal comfort and tolerance were significantly improved.Besides,the thermal protective jacket significantly reduced heat stress compared with ventilation jackets.

关 键 词：热安全 热应力 局部强热辐射环境 热防护服 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]