DOAJ Open Access 2020

Experimental study on the characteristics of overpressure wave to ventilation facilities during gas explosion and automatic shock relief devices

Kai Wang Haiqing Hao Shuguang Jiang Weiyao Cai Yuchen Zhang +1 lainnya

Lihat Sumber DOI

Abstrak

Ventilation facilities could easily be destroyed by gas explosion in a coal mine and usually lead to the cascade collapse of the entire ventilation system. Altering the ventilation facilities could increase the value of the overpressure peak and the propagation speed of the shock waves. The attenuation law for blast waves in restricted roadway networks was analysed, and calculation models for the blast wave overpressure and attenuation of the smoke flow velocity in tunnelling roadways were derived. An overpressure relief air door with a magnetic lock was then designed. This air door is opened by the action of the blast overpressure to relieve the pressure in a large section. The air door is automatically reset after the shock wave passes and closes under its load force and body weight. The system has the function of continuous automatic pressure relief and reset, providing support for efficient emergency rescue operations.

Topik & Kata Kunci

Environmental technology. Sanitary engineering Environmental sciences Risk in industry. Risk management

Penulis (6)

Kai Wang

Haiqing Hao

Shuguang Jiang

Weiyao Cai

Yuchen Zhang

Ziting Wang

Format Sitasi

APA MLA BibTeX

Wang, K., Hao, H., Jiang, S., Cai, W., Zhang, Y., Wang, Z. (2020). Experimental study on the characteristics of overpressure wave to ventilation facilities during gas explosion and automatic shock relief devices. https://doi.org/10.1080/19475705.2020.1836039

Akses Cepat

Lihat di Sumber doi.org/10.1080/19475705.2020.1836039

Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1080/19475705.2020.1836039
Akses: Open Access ✓