关键词: 高压蒸汽, 高温液体, 防护性能, 防护服装

Abstract:

To properly evaluate the protective performance of protective clothing against hot water spray and pressurized steam, the current domestic and foreign studies using simulated laboratory tests were comprehensively reviewed. The potential factors influencing the protective performance against hot liquid spray and steam were analyzed from the perspective of “human-protective clothing-environment” system. The present test technologies and evaluation standards were introduced. Then, the effects of influencing factors on the protective performance were summarized. These factors were consisted of three factors, i.e., clothing factor such as basic properties of protective material and static air gap size, human factor such as body shape, sweating status, garment deformation and abrasion caused by body movement, and environmental factor, including types of thermal hazards, temperature, distance, pressure, impingement angle, etc. Finally, the drawbacks of current studies were pointed out and the development trends of protective performance evaluation were predicted. It is imperative to establish a comprehensive evaluation system to improve the accuracy of protective performance against hot liquid spray and steam.

Key words: pressurized steam, hot liquid spray, thermal protection, protective clothing