Experimental study on effect of mine ventilation suit on human thermal physiological response

doi:10.16265/j.cnki.issn1003-3033.2023.06.1171

Abstract

Abstract:

In order to analyze the effect of mine ventilation clothing on human thermal physiology, and to explore the relationship between different ambient temperature, human labor intensity, pipeline structure and ventilation volume of mine ventilation clothing and human thermal physiological response, a human training test was carried out based on artificial environment test chamber and test measuring instrument, and test data were collected and recorded. By analyzing the human thermal physiological changes of three different pipeline structures of mine ventilation clothing under 36 different working conditions, combined with bivariate correlation analysis function, the correlation between three factors of different ambient temperature, clothing ventilation volume and labor intensity and human thermal physiology under three pipeline structures was sought. The results show that the uniformity of air volume distribution in the micro space of three kinds of ventilated clothes is transverse type > mixed type > vertical type. In terms of the overall effect, under the same working condition, the influence of pipeline structure from high to low is transverse type, mixed type and vertical type; the ambient temperature mainly affects the average skin temperature and heart rate, the ventilation volume mainly affects the systolic blood pressure and diastolic blood pressure, and the labor intensity mainly affects the sweating volume.

Key words: mine ventilation suit, thermal physiological response, pipeline structure, labor intensity

YOU Bo, WANG Siqi, HAN Qiaoyun, MAO Cong, YANG Xinyu. Experimental study on effect of mine ventilation suit on human thermal physiological response[J]. China Safety Science Journal, 2023, 33(6): 223-230.

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环境温度 t/℃	劳动强度/运动速度/(m·s^-1)	通风量 Q/(m³·h^-1)		服装结构
30	轻度/(3.0)	6		混合型
32	中度/(4.8)	9		横向型
34	重度/(6.0)	12	15	竖向型

测量指标	名称	范围	精度
皮肤温度	温度传感器/℃	-40~85	0.01 ℃
血压	电子血压计/mmHg	0~299	1
心率	Apple watch SE/(次·min^-1)	0~200	≤5%
出汗量	电子体质量秤/kg	0~150	0.01

服装结构		劳动强度	环境温度	通风量
混合型	皮尔逊相关性	0.565^**	0.676^**	-0.453^**
混合型	显著性(双尾)	0.000	0.000	0.006
横向型	皮尔逊相关性	0.577^**	0.669^**	-0.440^**
横向型	显著性(双尾)	0.000	0.000	0.007
竖向型	皮尔逊相关性	0.587^**	0.671^**	-0.431^**
竖向型	显著性(双尾)	0.000	0.000	0.009

服装结构		劳动强度	环境温度	通风量
混合型	皮尔逊相关性	0.717^**	-0.149^*	-0.587^**
混合型	显著性(双尾)	0.000	0.047	0.000
横向型	皮尔逊相关性	0.638^**	-0.120^*	-0.602^**
横向型	显著性(双尾)	0.000	0.043	0.000
竖向型	皮尔逊相关性	0.431^**	-0.166^*	-0.507^**
竖向型	显著性(双尾)	0.009	0.033	0.002

服装结构		劳动强度	环境温度	通风量
混合型	皮尔逊相关性	-0.100	-0.332^*	-0.866^**
混合型	显著性(双尾)	0.563	0.048	0.000
横向型	皮尔逊相关性	-0.137	-0.330^*	-0.807^**
横向型	显著性(双尾)	0.427	0.049	0.000
竖向型	皮尔逊相关性	-0.167	-0.577^**	-0.693^**
竖向型	显著性(双尾)	0.331	0.000	0.000