蒸发式微气候间隔冷却可以降低保温隔热防护服中的热应力
Karl Jochen Glitz1, Stefan Freitag2, Uwe Seibel2
1Bundeswehr Institute of Preventive Medicine, Aktienstraße 87, D-56626, Andernach, Germany. instpraevmedbwa4@bundeswehr.org.
Journal of occupational medicine and toxicology (London, England)
|October 14, 2025
概括
使用干燥空气舒适 (DAC) 的间隔微气候冷却有效地防止穿着防护服的工人受到热应激. 这种方法增强了散热,并在间歇性工作期间提高了职业安全.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 热生理学 热生理学
- 防护服 技术 保护服 技术
背景情况:
- 防护服阻碍汗水蒸发,增加热应激风险和潜在的热病.
- 微气候冷却,特别是干空舒适 (DAC) 是减轻热应激的经过验证的方法.
- 这项研究调查了DAC在间歇性工作休息周期中的有效性.
研究的目的:
- 评估使用DAC间隔冷却在防止热积累方面的有效性.
- 评估间隔冷却对生理热应激指标的影响.
- 确定DAC是否可以在苛刻的热环境中提高工人安全.
主要方法:
- 采用了一个主题内设计,其中有十二名男性参与者穿着防护衣.
- 在受控的环境条件下,参与者接受了工作休息时间表 (20分钟工作/20分钟休息5个周期).
- 间隔冷却包括在休息期间将冷却空气灌入内衣,而不是在没有冷却的情况下.
主要成果:
- 间隔冷却允许所有参与者在不超过38.0°C的平均核心温度的情况下完成暴露.
- 在没有冷却的情况下,由于高核心温度,疲劳或心率升高,八名参与者终止了试验.
- 观察到心率和皮肤温度的显著差异,间隔冷却显示出更低的热应力和更好的散热.
结论:
- 使用DAC间歇性蒸发冷却有效地防止在交替工作休息周期期间的热积累.
- DAC方法显著改善了热保护服工作人员的职业健康和安全.
- 这种方法为管理高风险工作环境中的热应激提供了可行的解决方案.
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