Study on Effects of Plateau Environment on Mine Fans' Parameters of Characteristic Curves

Xiaodong Wang; Xiaoyun Wang; Jie Liu; Youcheng Jiang; Yuanyuan Pu

doi:10.18311/jmmf/2017/26942

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Authors

Xiaodong Wang
Kunming University of Science and Technology, Kunming 650093 ,CN
Xiaoyun Wang
College of Civil Engineering, Tongji University, Shanghai 200092 ,CN
Jie Liu
Kunming University of Science and Technology, Kunming 650093 ,CN
Youcheng Jiang
Kunming University of Science and Technology, Kunming 650093 ,CN
Yuanyuan Pu
Number One Middle School of Huaning, Yuxi 652899 ,CN

DOI:

https://doi.org/10.18311/jmmf/2017/26942

Keywords:

Characteristic Curve of Air Pressure, Characteristic Curve Of Fan Power, Air Flow of Fans, The Test of Fans, Similarity Law of Fans.

Abstract

In order to improve the lower performance of mine fans in China's Tibetan plateau, this article mainly studies the effects of plateau environment on the fans' parameters. The results show that (1) the main contributory factor of the variation of the air pressure and power is the air density, while the air flow and efficiency cannot be influenced by the air density; (2) through the tests of fan performance at different altitudes, it can be found that the characteristic curve of air pressure declines by about 1/2 at an altitude of 4000 m or more and by about 1/4 at an altitude of about 2000 m, compared to it in the standard state. It indicates that the higher the altitude is, the poorer the working condition of fan performance is. Based on the above results and the analysis of the influence of an altitude on miners' physiological conditions, this article has established a mathematical model of modified performance parameters of mine fans referring the atmospheric pressure at an altitude of 3000 m.