救援直升机中的氧气积累和相关危险
Lisa Marie Kohler1, Andrea Köhler1, Fabian Perschinka1
1Division of Intensive Care and Emergency Medicine, Department of Internal Medicine I, Medical University Innsbruck, Innsbruck, Austria.
BMC emergency medicine
|August 12, 2024
概括
救援直升机中的氧气积累构成严重的火灾风险,迅速超过安全水平. 交叉通风对于飞机机中丰富氧气大气的快速清除至关重要.
科学领域:
- 航空安全航空安全
- 紧急医疗 紧急医疗
- 消防安全工程 消防安全工程
背景情况:
- 在医疗紧急情况下,特别是COVID-19大流行期间,氧气的管理导致事件增加.
- 高度的氧气 (超过23%) 呈指数级增加火灾危险,这是一个已知的,但持续的问题.
- 救援直升机存在独特的风险,原因是狭窄的空间,靠近燃料线和热面.
研究的目的:
- 为了量化不同救援直升机模型的客中氧气的积累.
- 评估通风方法在清除富含氧气的大气中的有效性.
- 为了强调与直升机操作中使用氧气相关的火灾风险.
主要方法:
- 三种直升机型号 (空客H135,H145,MD902) 进行了测试.
- 在60分钟的时间里,使用氧度计测量氧气水平,氧气流量为15升/分钟.
- 使用雾机可视化大气清除,并在各种通风条件下进行评估.
主要成果:
- 在所有测试的直升机中,氧气度在几分钟内超过21%.
- 在10-15分钟后,所有飞机都超过了关键的23%值.
- MD902在60分钟后达到27.4%的氧气;即使门打开",氧气云"仍然存在,尤其是在H145.5中. 快速清除 (1分钟) 仅通过交叉通风才能实现.
结论:
- 严格的预防措施和适应的检查清单对于在救援直升机中处理氧气至关重要.
- 防止氧气积累至关重要,以避免潜在的致命事件.
- 这项研究提供了关于各种救援直升机设置中的氧气度的新数据.
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