lower flammable limit

简明释义

可燃下限

英英释义

例句

1.In our facility, we have strict protocols to monitor the lower flammable limit 下限可燃浓度 of all chemicals.

在我们的设施中，我们有严格的协议来监测所有化学品的lower flammable limit 下限可燃浓度。

2.The technician explained that exceeding the lower flammable limit 下限可燃浓度 can lead to dangerous situations.

技术员解释说，超过lower flammable limit 下限可燃浓度可能会导致危险情况。

3.Understanding the lower flammable limit 下限可燃浓度 is crucial when working with volatile substances.

了解lower flammable limit 下限可燃浓度在处理挥发性物质时至关重要。

4.During the experiment, we monitored the lower flammable limit 下限可燃浓度 of the gas to ensure safety.

在实验过程中，我们监测了气体的lower flammable limit 下限可燃浓度以确保安全。

5.The safety manual states that the lower flammable limit 下限可燃浓度 for methane is 5% in air.

安全手册指出，甲烷的lower flammable limit 下限可燃浓度为空气中5%。

作文

Understanding the concept of the lower flammable limit is essential for anyone involved in handling flammable substances. The lower flammable limit, often abbreviated as LFL, refers to the minimum concentration of a gas or vapor in the air that can ignite and sustain combustion when exposed to an ignition source. This threshold is critical because it determines the safety measures needed in environments where flammable materials are present. For instance, consider a manufacturing facility that uses solvents in its production processes. If the concentration of these solvents in the air falls below the lower flammable limit, there is no risk of fire or explosion under normal conditions. However, if the concentration rises above this limit, even a small spark could trigger a hazardous situation. Therefore, understanding and monitoring the lower flammable limit is vital for maintaining a safe working environment.In practical terms, the lower flammable limit varies for different substances. For example, the LFL for methane is approximately 5% by volume in air, while for gasoline vapors, it can be around 1.4%. This means that in a confined space, if the concentration of methane exceeds 5%, there is a potential risk of fire or explosion. Hence, industries must implement proper ventilation and monitoring systems to ensure that concentrations remain below the lower flammable limit.Moreover, the lower flammable limit is not static; it can change based on various factors such as temperature, pressure, and the presence of other chemicals. As temperatures rise, for instance, the volatility of certain substances may increase, potentially lowering their lower flammable limit. This dynamic nature highlights the importance of regular training and education for employees who work with flammable materials, ensuring they understand how to identify and manage risks associated with the lower flammable limit.In addition to workplace safety, the concept of the lower flammable limit is also crucial in emergency response scenarios. Firefighters and emergency responders need to be aware of the LFL of various substances to effectively handle incidents involving flammable materials. Knowing the lower flammable limit allows them to assess the risk of fire and take appropriate actions to mitigate hazards, thereby protecting lives and property.In conclusion, the lower flammable limit plays a significant role in the safety and management of flammable substances in various settings. By understanding its implications, industries can better protect their workers and facilities from potential fire hazards. Furthermore, this knowledge is invaluable for emergency responders who must act quickly and decisively in crisis situations. Ensuring that all personnel are educated about the lower flammable limit and its importance can lead to safer working environments and more effective emergency management practices.

理解下可燃极限的概念对于任何处理易燃物质的人来说都是至关重要的。下可燃极限，通常缩写为LFL，是指在空气中能够点燃并维持燃烧的气体或蒸汽的最低浓度。当暴露于点火源时，这个阈值是关键的，因为它决定了在存在易燃材料的环境中所需的安全措施。例如，考虑一个在生产过程中使用溶剂的制造设施。如果这些溶剂在空气中的浓度低于下可燃极限，在正常条件下就没有火灾或爆炸的风险。然而，如果浓度超过这个限度，即使是微小的火花也可能引发危险情况。因此，理解和监测下可燃极限对于维护安全的工作环境至关重要。在实际操作中，下可燃极限因不同物质而异。例如，甲烷的LFL大约为5%（体积比），而汽油蒸汽的LFL大约为1.4%。这意味着在一个封闭空间中，如果甲烷的浓度超过5%，就存在火灾或爆炸的潜在风险。因此，工业必须实施适当的通风和监测系统，以确保浓度保持在下可燃极限以下。此外，下可燃极限并不是静态的；它会根据温度、压力和其他化学物质的存在等各种因素而变化。例如，随着温度的升高，某些物质的挥发性可能增加，从而可能降低其下可燃极限。这种动态特性突显了对与易燃材料一起工作的员工进行定期培训和教育的重要性，确保他们了解如何识别和管理与下可燃极限相关的风险。除了工作场所安全外，下可燃极限的概念在紧急响应场景中也至关重要。消防员和应急响应人员需要了解各种物质的LFL，以有效处理涉及易燃材料的事件。了解下可燃极限使他们能够评估火灾风险，并采取适当措施来减轻危害，从而保护生命和财产。总之，下可燃极限在各种环境中易燃物质的安全和管理中发挥着重要作用。通过理解其影响，行业可以更好地保护工人和设施免受潜在火灾危害。此外，这一知识对于在危机情况下必须迅速果断行动的应急响应者来说也是无价的。确保所有人员都了解下可燃极限及其重要性可以导致更安全的工作环境和更有效的应急管理实践。