Academic Journal
Study on the influence of gas transmission characteristics of positive pressure beam tube system under graded pressurization
| Title: | Study on the influence of gas transmission characteristics of positive pressure beam tube system under graded pressurization |
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| Authors: | Qingsong Zhang, Wanjun Lu, Hui Zhuo, Xin Zheng, Changping Yang, Hongxia Wang, Changyuan Xiao, Rui Luo |
| Source: | Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024) |
| Publisher Information: | Nature Portfolio, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Monitoring and early warning, Positive pressure beam tubes, Staged pressurization, Transmission characteristics, Medicine, Science |
| More Details: | Abstract The positive pressure beam tube system addresses issues related to gas composition distortion, concentration variations, and long transmission delays observed in traditional negative pressure systems. It has increasingly become the primary system for early monitoring and warning of coal spontaneous combustion in goaf areas. Nevertheless, there remains a deficiency in comprehensive research concerning critical aspects like gas transmission characteristics and transmission lag time in the positive pressure beam tube system. This study aims to construct an experimental platform for the positive pressure beam tube monitoring system and systematically investigate how the choice of pressurization device, pipe length, pipe diameter, and driving pressure in the transmission pipeline affect gas transmission characteristics. The findings indicate that the most effective pressurization occurs under conditions of two-stage high positive pressure transport, with a driving gas pressure of 0.65 MPa. The optimal diameter for positive pressure gas transmission is 7 mm. Long-distance negative pressure pipelines result in decreased transmission efficiency, necessitating increased output pressure with the lengthening of positive pressure pipelines to maintain efficiency. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-024-81963-1 |
| Access URL: | https://doaj.org/article/89ba76a485a54174bea1c7939d9035f6 |
| Accession Number: | edsdoj.89ba76a485a54174bea1c7939d9035f6 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 20452322 |
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| DOI: | 10.1038/s41598-024-81963-1 |
| Published in: | Scientific Reports |
| Language: | English |