flammable range

简明释义

可燃区间

英英释义

例句

1.If the concentration of vapors exceeds the flammable range, there is a significant risk of explosion.

如果蒸汽的浓度超过了可燃范围，就会有爆炸的重大风险。

2.Before starting the experiment, we need to check if the chemicals fall within the flammable range to ensure safety.

在开始实验之前，我们需要检查这些化学品是否处于可燃范围内，以确保安全。

3.Understanding the flammable range of materials is crucial for preventing workplace accidents.

了解材料的可燃范围对于防止工作场所事故至关重要。

4.The technician explained that the gas has a flammable range of 5% to 15% in air, which means it can ignite if the concentration is within this range.

技术员解释说，这种气体的可燃范围是空气中5%到15%，这意味着如果浓度在这个范围内，就可能会引发点燃。

5.The fire department advised that the flammable range of the solvent should be monitored closely during storage.

消防部门建议在储存过程中应密切监测溶剂的可燃范围。

作文

Understanding the concept of the flammable range is crucial in various fields, particularly in chemistry, engineering, and safety management. The flammable range, also known as the explosive range, refers to the concentration limits of a gas or vapor in air that can ignite and cause combustion. This range is defined by two key points: the lower flammable limit (LFL) and the upper flammable limit (UFL). When the concentration of a flammable substance falls below the LFL, there is not enough fuel for combustion, while concentrations above the UFL indicate that there is too much fuel present, which can also prevent ignition. In practical terms, understanding the flammable range is vital for ensuring safety in environments where flammable gases are present. For example, in industrial settings where chemicals are processed, workers must be aware of the flammable range of substances they handle. If the concentration of a gas exceeds its UFL, it becomes impossible to ignite, but this scenario does not eliminate the risks associated with high concentrations of flammable materials. Conversely, if the concentration drops below the LFL, there may be no immediate threat of explosion, but the potential for creating an explosive atmosphere still exists if conditions change. Moreover, the flammable range can vary significantly between different substances. For instance, methane has a flammable range of approximately 5% to 15% in air, meaning that only within this concentration will it ignite when exposed to a flame. In contrast, hydrogen has a much wider flammable range, from about 4% to 75%. This characteristic makes hydrogen particularly dangerous in confined spaces, as it can easily reach flammable concentrations. To mitigate risks associated with the flammable range, industries implement various safety measures. These include proper ventilation to dilute flammable vapors, continuous monitoring of gas concentrations, and the use of explosion-proof equipment. Training employees to recognize the significance of the flammable range and how to respond to potential hazards is also essential. Regular safety drills and clear communication protocols can help ensure that everyone understands the risks and knows how to act in case of an emergency. In conclusion, the flammable range is a critical concept that plays a significant role in maintaining safety standards in environments where flammable substances are present. By comprehensively understanding this range, individuals and organizations can take proactive measures to prevent accidents and ensure a safe working environment. Whether in laboratories, factories, or other industrial settings, awareness of the flammable range can save lives and protect property from the devastating effects of fire and explosion.

理解易燃范围的概念在化学、工程和安全管理等多个领域中至关重要。易燃范围，也称为爆炸范围，指的是气体或蒸气在空气中的浓度限制，这些浓度可以点燃并引起燃烧。该范围由两个关键点定义：下限可燃浓度（LFL）和上限可燃浓度（UFL）。当易燃物质的浓度低于LFL时，没有足够的燃料进行燃烧，而高于UFL的浓度则表明存在过多的燃料，这也会阻止点燃。在实际应用中，了解易燃范围对于确保存在易燃气体的环境的安全至关重要。例如，在化学品加工的工业环境中，工人必须了解他们处理的物质的易燃范围。如果气体的浓度超过其UFL，则点燃几乎不可能，但这种情况并不消除与高浓度易燃材料相关的风险。相反，如果浓度下降到LFL以下，则可能没有立即的爆炸威胁，但如果条件发生变化，仍然存在产生爆炸性气氛的潜力。此外，不同物质之间的易燃范围可能差异显著。例如，甲烷的易燃范围大约为5%到15%（在空气中），这意味着只有在这个浓度范围内，它才会在接触火焰时点燃。相比之下，氢气的易燃范围要宽得多，从约4%到75%。这一特性使氢气在密闭空间中特别危险，因为它很容易达到易燃浓度。为了降低与易燃范围相关的风险，行业实施了各种安全措施。这些措施包括适当的通风以稀释易燃蒸气、持续监测气体浓度以及使用防爆设备。培训员工识别易燃范围的重要性以及如何应对潜在危害也是必不可少的。定期的安全演练和清晰的沟通协议可以帮助确保每个人都理解风险，并知道在紧急情况下如何行动。总之，易燃范围是一个关键概念，在维护存在易燃物质的环境的安全标准中发挥着重要作用。通过全面理解这一范围，个人和组织可以采取主动措施来防止事故，确保安全的工作环境。无论是在实验室、工厂还是其他工业环境中，意识到易燃范围可以拯救生命并保护财产免受火灾和爆炸的破坏性影响。