耦合相变蓄冷材料的新型防护服特性实验研究

Experimental Study on the Characteristics of New Protective Clothing Coupled with Phase Change Cold Storage Materials

通过真人试穿耦合相变蓄冷材料的医用防护服,测试不同室内温度及多劳动强度工况下,受试人员不同部位的温湿度。结果表明,相变材料的平均降温率在工况17℃、24℃、28℃时分别为9.64%、1.73%、2.58%;同种温湿度工况和劳动强度下前胸、大腿、后背、头部和上臂部位降温率分别为4.26%、2.38%、1.17%、0.54%、3.12%;相变材料的降温效果随着劳动强度的增强而增强。其中,轻度劳动和重度劳动的平均降温率分别为2.55%,4.26%。人体的相对湿度随劳动时间的增加而升高,人体在28℃、24℃、和17℃温度工况、同一劳动强度下相对湿度分别约为85%、65%和60%。测量并研究相变材料对人体的降温、降湿效果,为医用降温服的设计提供实验依据。

The temperature and humidity of different people parts of under different indoor temperatures and multi-labor intensity indoor conditions by trying on medical protective clothing coupled with phase change cold storage materials through real people was tested.The results show that the average cooling rates of phase change materials are 9.64%,1.73%and 2.58%when the indoor ambient temperature is respectively 17°C,24°C and 28°C.The cooling rates of chest,thighs,back,head and upper arms under the same temperature and humidity indoor conditions and the same labor intensity were respectively 4.26%,2.38%,1.17%,0.54%and 3.12%.The cooling effect of phase change materials increases with the increase of exercise intensity.The average cooling rate of light exercise was 2.55%and the heavy exercise was 4.26%among them.The relative humidity of the human body increases with the increase of working time,and the relative humidity of the human body at 28°C,24°C,17°C indoor temperature conditions and the same labor intensity is about 85%,65%and 60%,respectively.Measuring and researching the cooling and humidification effects of phase change materials on the human body can provide experimental basis for the design of medical cooling clothing.