Lu Yehu, Song Guowen, Li Jun
Protective Clothing Research Centre, Donghua University, Shanghai, China.
Ann Occup Hyg. 2013 Jul;57(6):793-804. doi: 10.1093/annhyg/mes109. Epub 2013 Jan 16.
Hot liquid hazards existing in work environments present a common risk in workplace safety in numerous industries. In this study, a newly developed instrumented manikin system was used to assess the protective performance provided by protective clothing against hot liquid splash. The skin burn injury and its distribution for the selected clothing system were predicted and the effects of clothing design features (fabric properties and garment size) on protective performance were investigated. The air gap size and distribution existing between protective clothing and human skin were characterized using 3D body scanning, and their relation to skin burn injury was identified. The mechanism associated with heat and mass transfer under exposure to hot liquid splashes was discussed. The findings provided technical bases to improve the performance of protective clothing. For protective clothing design, minimizing mass transfer through clothing system is very important to provide high performance. Keeping the air gap between the garment and the human body is an essential approach to improve thermal performance. This can be achieved by proper design in size and fit, or applying functional textile materials.
工作环境中存在的热液体危害是众多行业 workplace safety 中的常见风险。在本研究中，一种新开发的仪器化人体模型系统被用于评估防护服对热液体飞溅的防护性能。预测了所选服装系统的皮肤烧伤损伤及其分布，并研究了服装设计特征（织物性能和服装尺寸）对防护性能的影响。使用 3D 人体扫描对防护服与人体皮肤之间存在的气隙大小和分布进行了表征，并确定了它们与皮肤烧伤损伤的关系。讨论了在热液体飞溅暴露下与传热传质相关的机制。这些发现为提高防护服性能提供了技术基础。对于防护服设计，尽量减少通过服装系统的传质对于提供高性能非常重要。保持服装与人体之间的气隙是提高热性能的重要方法。这可以通过在尺寸和贴合度上进行适当设计或应用功能性纺织材料来实现。
