Feeley T W, McClelland K J, Malhotra I V
Lancet. 1975 Jun 28;1(7922):1416. doi: 10.1016/s0140-6736(75)92619-7.
Many hospitals throughout the world obtain oxygen from a supply of bulk liquid oxygen which is delivered throughout the hospital via pipelines. An incident in which, through a series of malfunctions, dangerously high pressure developed in the hospital oxygen pipeline is described. The oxygen delivery systen described lacked a relief valve to vent excessive pressures. In North America such a relief valve is required on all oxygen delivery systems. An alarm system is also required which detects rises in pipeline pressures. Regulations in the U.K. do not provide for pressure-relief valves on liquid oxygen pipeline systems. In the U.K. there is also no regulation on alarms to warn of high pipeline pressures. High-pressure accidents are a real threat to patients and hospital staff unless proper safeguards are built into oxygen delivery systems.
世界上许多医院从大量液态氧供应中获取氧气，这些液态氧通过管道输送到医院各处。本文描述了一起事件，由于一系列故障，医院氧气管道中出现了危险的高压。所述的氧气输送系统缺少一个用于释放过高压力的安全阀。在北美，所有氧气输送系统都需要这样一个安全阀。还需要一个警报系统来检测管道压力的升高。英国的法规没有规定液氧管道系统上要安装泄压阀。在英国，也没有关于警报以警告管道压力过高的规定。除非在氧气输送系统中设置适当的安全措施，否则高压事故对患者和医院工作人员构成真正的威胁。
