矿用气体降温服通风参数对人体皮肤温度的影响

Research on the Influence of Ventilation Parameters of Mine Gas Cooling Suit on Human Skin Temperature

为了探讨矿用气体降温服通风参数对人体皮肤温度的影响,通过真人受训实验得出人体产热率,构建人体皮肤-微空间-气体降温服三维物理模型,采用数值模拟的方法研究在高温高湿环境下矿用气体降温服的通风温度、风量对人体皮肤温度的影响规律.结果表明:着装气体降温服后,人体的不同躯干部位皮肤温度存在差异,左部皮肤温度低于右部,左肩降温最好;气体降温服与通风温度约成线性关系,通风量分别为15,10,5 m^(3)/h时,通风温度每降低5℃,人体平均皮肤温度分别降低约0.7,0.5,0.3℃.研究结果可为矿井降温个体防护装备的推广与应用提供理论依据.

In order to explore the influence of the ventilation parameters of the mine gas cooling suit on the human skin temperature, the human body heat production rate is obtained through the human training experiment, the human skin-microspace-gas cooling suit three-dimensional physical model is constructed, and the numerical simulation method is used to study the influence law of ventilation temperature and air volume of mine gas cooling suit on human skin temperature in high temperature and high humidity environment. Results show that the skin temperature of different trunk parts of the human body is different when wearing a gas cooling suit;the skin temperature of the left part is lower than that of the right part, and the left shoulder has the best cooling effect. The gas cooling suit has a linear relationship with the ventilation temperature. When the ventilation volume is 15, 10, 5 m^(3)/h, the average skin temperature of the human body decreases by about 0.7, 0.5, 0.3 ℃ for every 5 ℃ decrease in the ventilation temperature. The research results can provide a theoretical basis for the promotion and application of personal protective equipment for mine cooling.