Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask
This article focuses on the study of the flow field inside the breathing chamber of a half-face power supply respiratory protection device. The research method is numerical simulation, and the control variables are used to study the effects of the number and angle of air intakes on the CO2 concentra...
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| Format: | Article |
| Language: | zho |
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Harbin University of Science and Technology Publications
2024-08-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2351 |
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| author | ZHAO Xintong TANG Yichang SHEN Wenli GUAN Jianhui |
| author_facet | ZHAO Xintong TANG Yichang SHEN Wenli GUAN Jianhui |
| author_sort | ZHAO Xintong |
| collection | DOAJ |
| description | This article focuses on the study of the flow field inside the breathing chamber of a half-face power supply respiratory protection device. The research method is numerical simulation, and the control variables are used to study the effects of the number and angle of air intakes on the CO2 concentration, airflow velocity, pressure, and CO2 inhalation in the breathing chamber. The simulation analysis of the CO2 concentration field and airflow velocity field in the breathing chamber was carried out, and combined with the CO2 concentration distribution nephogram and airflow velocity curve in the mask under different inlet numbers and angles. It was concluded that under the dual inlet structure, the air inlet was facing the front end of the mask, and the angle within 20 ° - 25 ° could not only meet the safety requirements, but also be conducive to the gas exchange in the breathing chamber. The human body was comfortable to wear providing relevant theoretical basis for optimizing the structure of the half-face mask. |
| format | Article |
| id | doaj-art-ecea557ee1fe4dcba56d5897cc0b3b35 |
| institution | DOAJ |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2024-08-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-ecea557ee1fe4dcba56d5897cc0b3b352025-08-20T03:17:40ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832024-08-012904697910.15938/j.jhust.2024.04.008Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face MaskZHAO Xintong0TANG Yichang1SHEN Wenli2GUAN Jianhui3School of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080 , ChinaSchool of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080 , ChinaSchool of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080 , ChinaSchool of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080 , ChinaThis article focuses on the study of the flow field inside the breathing chamber of a half-face power supply respiratory protection device. The research method is numerical simulation, and the control variables are used to study the effects of the number and angle of air intakes on the CO2 concentration, airflow velocity, pressure, and CO2 inhalation in the breathing chamber. The simulation analysis of the CO2 concentration field and airflow velocity field in the breathing chamber was carried out, and combined with the CO2 concentration distribution nephogram and airflow velocity curve in the mask under different inlet numbers and angles. It was concluded that under the dual inlet structure, the air inlet was facing the front end of the mask, and the angle within 20 ° - 25 ° could not only meet the safety requirements, but also be conducive to the gas exchange in the breathing chamber. The human body was comfortable to wear providing relevant theoretical basis for optimizing the structure of the half-face mask.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2351half-face maskinternal flow fieldnumber of air intakesinlet angle |
| spellingShingle | ZHAO Xintong TANG Yichang SHEN Wenli GUAN Jianhui Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask Journal of Harbin University of Science and Technology half-face mask internal flow field number of air intakes inlet angle |
| title | Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask |
| title_full | Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask |
| title_fullStr | Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask |
| title_full_unstemmed | Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask |
| title_short | Analysis of the Influence of Air Inlet Parameters on Positive Pressure Respiratory Protection Device with Half-face Mask |
| title_sort | analysis of the influence of air inlet parameters on positive pressure respiratory protection device with half face mask |
| topic | half-face mask internal flow field number of air intakes inlet angle |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2351 |
| work_keys_str_mv | AT zhaoxintong analysisoftheinfluenceofairinletparametersonpositivepressurerespiratoryprotectiondevicewithhalffacemask AT tangyichang analysisoftheinfluenceofairinletparametersonpositivepressurerespiratoryprotectiondevicewithhalffacemask AT shenwenli analysisoftheinfluenceofairinletparametersonpositivepressurerespiratoryprotectiondevicewithhalffacemask AT guanjianhui analysisoftheinfluenceofairinletparametersonpositivepressurerespiratoryprotectiondevicewithhalffacemask |