医疗氧气供应系统的可靠性评估由FTA基于直观的模糊集
Yeganeh Yousofnejad1, Mahboubeh Es'haghi1
1Department of Occupational Health Engineering and Safety at Work, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
这项研究评估了医疗氧气供应系统的可靠性. 断层树分析确定压力开关故障和密封问题是释放氧气的关键风险,提高了患者的安全.
科学领域:
- 生物医学工程 生物医学工程
- 化学工程是化学工程的重要组成部分.
- 安全工程安全工程
背景情况:
- 医疗保健中心需要持续,高纯度的医疗氧供应,以确保患者的安全.
- 压力波动吸附 (PSA) 系统被广泛用于医疗氧气生成,但由于氧气的易燃性,会造成火灾风险.
- 系统故障可能导致严重的医院火灾,需要进行可靠性评估.
研究的目的:
- 评估压力波动吸附 (PSA) 医疗氧气供应系统的可靠性.
- 识别可能导致氧气释放和相关火灾危险的关键故障点.
- 将传统的断层树分析 (FTA) 与直觉模糊分析进行比较,以量化风险.
主要方法:
- 使用断层树分析 (FTA) 来建模导致氧气释放的潜在故障途径.
- 传统的FTA和直觉模糊分析都被用于定量风险评估.
- 专家意见是使用直觉模糊系统来处理不确定性的.
主要成果:
- 该研究确定了导致氧气释放的关键基本事件,包括压力开关故障,密封不充分以及使用不当的密封材料.
- FTA成功地绘制了导致氧气释放的顶级事件事件的逻辑序列.
- 直觉模糊分析提供了一种灵活的方法来量化在模两可的情况下的专家判断.
结论:
- 对PSA氧气系统的可靠性评估对于预防医院火灾至关重要.
- 特定部件的故障 (压力开关,密封) 是氧气释放风险的主要原因.
- 整合直觉模糊分析可以提高医疗氧气供应等复杂系统中风险评估的稳定性.
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