Research on influence of pipeline structure of mine ventilation clothing on interior microclimate

doi:10.16265/j.cnki.issn1003-3033.2022.07.2244

Abstract

Abstract:

In order to explore the local cooling effect of mine ventilation clothes on the human body and reveal the characteristics of changes in human skin temperature and climate within the micro-system composed of ventilation clothes, interior space and the human body, the influence mechanism of different ventilation clothes pipeline structure, ventilation volume and human labor intensity on human skin temperature and microclimate was analyzed by simulation. The results show that the cooling effect of ventilation clothing with the transverse pipeline structure is better than that of the longitudinal one. With increasing air volume, the cooling amplitude of transverse ventilation clothing on human skin temperature is better than that of longitudinal ventilation clothing. The distribution characteristics of wind speed in the micro-system of the two kinds of ventilation suits are different. The front and back sides of the transverse type are quite different, and the longitudinal type is more uniform. The influence of air volume on the temperature in the longitudinal ventilation system is more obvious than that in the transverse ventilation system. However, the average temperature in the transverse ventilation system is lower.

Key words: mine ventilation clothing, pipeline structure, microclimate, interior space, skin temperature

YOU Bo, MAO Cong, SHI Shiliang, LIU Heqing, LU Yi, WU Guoshan. Research on influence of pipeline structure of mine ventilation clothing on interior microclimate[J]. China Safety Science Journal, 2022, 32(7): 195-204.

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服装结构	风量/ (m³·h^-1)	微气候区风速								平均风速
服装结构	风量/ (m³·h^-1)	左胸	右胸	左腹	右腹	左肩	右肩	左背	右背	平均风速
横向型	6	0.034	0.034	0.044	0.044	0.84	0.82	0.75	0.73	0.41
	9	0.054	0.054	0.070	0.069	1.28	1.25	1.13	1.10	0.62
	12	0.075	0.074	0.097	0.095	1.67	1.65	1.52	1.48	0.83
	15	0.095	0.094	0.124	0.122	1..98	1.91	1.86	1.85	1.00
竖向型	6	0.27	0.12	0.49	0.068	0.33	0.16	0.26	0.14	0.22
	9	0.41	0.25	0.72	0.21	0.53	0.31	0.65	0.24	0.41
	12	0.65	0.35	0.97	0.32	0.72	0.43	0.88	0.38	0.59
	15	0.87	0.52	1.24	0.53	0.89	0.58	1.21	0.50	0.79

服装结构	风量/ (m³·h^-1)	微气候区温度
服装结构	风量/ (m³·h^-1)	左胸	右胸	左腹	右腹	左肩	右肩	左背	右背
横向型	6	32.43	32.50	32.30	32.29	31.51	31.49	31.48	31.50
	9	32.02	32.09	31.93	31.92	31.24	31.22	31.23	31.24
	12	31.76	31.82	31.67	31.67	31.06	31.05	31.04	31.06
	15	31.57	31.62	31.49	31.48	30.92	30.91	30.91	30.92
竖向型	6	32.54	32.08	31.89	32.69	32.26	32.79	32.68	33.04
	9	32.12	31.69	31.42	32.35	31.49	32.04	32.46	32.77
	12	31.86	31.46	31.25	32.15	31.22	31.70	31.94	32.22
	15	31.59	31.18	31.07	31.77	30.84	31.51	31.61	31.89

服装结构	风量/ (m³·h^-1)	微气候区温度
服装结构	风量/ (m³·h^-1)	左胸	右胸	左腹	右腹	左肩	右肩	左背	右背
横向型	6	32.75	32.74	32.60	32.59	31.84	31.84	31.82	31.84
	9	32.29	32.28	32.18	32.17	31.51	31.53	31.50	31.52
	12	31.99	31.99	31.89	31.89	31.20	31.19	31.18	31.20
	15	31.79	31.77	31.68	31.67	31.06	31.04	31.03	31.05
竖向型	6	32.87	32.54	32.14	33.04	31.92	32.73	32.56	33.46
	9	32.40	31.94	31.48	32.58	31.56	32.35	31.94	32.62
	12	32.06	31.61	31.29	32.29	31.31	31.94	31.41	32.35
	15	31.95	31.54	31.16	31.91	30.98	31.55	31.12	32.05

服装结构	风量/ (m³·h^-1)	微气候区温度
服装结构	风量/ (m³·h^-1)	左胸	右胸	左腹	右腹	左肩	右肩	左背	右背
横向型	6	33.10	33.09	32.99	32.95	31.97	31.92	31.98	31.99
	9	32.59	32.58	32.50	32.49	31.60	31.56	31.60	31.61
	12	32.26	32.25	32.19	32.17	31.35	31.34	31.34	31.39
	15	32.03	32.00	31.93	31.91	31.20	31.16	31.18	31.19
竖向型	6	33.21	32.86	32.45	32.79	32.27	32.95	32.88	33.77
	9	32.70	32.12	31.83	32.42	31.79	32.48	32.53	33.15
	12	32.49	31.88	31.51	32.13	31.47	32.17	32.08	32.78
	15	32.32	31.76	31.38	32.07	31.09	31.87	32.01	32.63