Zobrazeno 1 - 10
of 168
pro vyhledávání: '"flameproof"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 5, Pp 243-250 (2024)
With the increase of coal mine excavation distance, in order to meet the actual needs that the terminal voltage of the long-distance cable end motor in the coal mine is greater than 95% of the rated voltage when it is running and 75% of the rated vol
Externí odkaz:
https://doaj.org/article/634e759fa80347e38adcc509630d41d2
Publikováno v:
Applied Sciences, Vol 14, Iss 23, p 11209 (2024)
Temperature monitoring is the main indicator to ensure the safe operation of the coal mine explosion-proof box. In this study, a three-way flameproof cable box was considered for coal mines. A three-dimensional transient temperature field simulation
Externí odkaz:
https://doaj.org/article/13a5a004e10744569bc0c91868ff1665
Publikováno v:
Meikuang Anquan, Vol 54, Iss 2, Pp 229-233 (2023)
The maximum explosion pressure and maximum explosion pressure rate produced by different filling ratios in the flameproof chamber are different. In order to study the change characteristics of gas explosion under different filling ratios in flameproo
Externí odkaz:
https://doaj.org/article/375d8af1047245bb810f54675bb5a93e
Publikováno v:
Meikuang Anquan, Vol 54, Iss 4, Pp 216-221 (2023)
In order to study the variation law of the maximum explosion pressure and the maximum pressure rise rate of the premixed gas in the flameproof enclosure, three different flameproof enclosures were selected as the test samples, and the explosion was c
Externí odkaz:
https://doaj.org/article/19ea10f337ed4d56a8b1d81bd0065002
Autor:
MA Yunlong
Publikováno v:
Meikuang Anquan, Vol 53, Iss 7, Pp 70-73 (2022)
In order to study the influence of circular hole obstacles on pressure overlap, different circular hole obstacles were tested to obtain different methane air explosion propagation process by explosion test system. The analysis of the explosion proces
Externí odkaz:
https://doaj.org/article/fcbdbae6f41642b38e15eba3ea855324
Publikováno v:
Meikuang Anquan, Vol 52, Iss 11, Pp 139-146 (2021)
Compared with the ordinary electric drive system, there is a wide range of explosive environment formed by flammable mixtures in modern industrial production such as coal mines and petrochemicals. The existence of potential ignition sources (electric
Externí odkaz:
https://doaj.org/article/b1f1467a725c419aae632b6c204f8cf9
Akademický článek
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Publikováno v:
Meikuang Anquan, Vol 51, Iss 10, Pp 98-107 (2020)
In this paper, the research progress and development trend of gas and coal dust explosion suppression and isolation technology in China are reviewed and discussed from the aspects of basic research, passive explosion suppression and isolation technol
Externí odkaz:
https://doaj.org/article/211131861a3e42d48a8832b895d8e2a4
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 5, Pp 36-41 (2018)
In order to analyze influence of air gaps or impurities in insulation layer on temperature rise of windings of mine-used flameproof dry-type transformer, a mine-used 1 000 kVA/10 kV dry-type transformer with continuous winding was selected as researc
Externí odkaz:
https://doaj.org/article/fc8af6a8a2d04dd7938cfac36da09b5a
Publikováno v:
Gong-kuang zidonghua, Vol 43, Iss 7, Pp 32-36 (2017)
In view of problems of energy waste and environmental pollution caused by high power consumption and low efficiency of existing motors, a mine-used flameproof three-phase asynchronous motor with high voltage and high efficiency was developed. Develop
Externí odkaz:
https://doaj.org/article/15a83df2ae374ff191bdca56dccc4b13