freon

简明释义

英[ˈfriːɒn]美[ˈfriˌɑːn]

n. 氟里昂（一种推进剂、制冷剂或有机溶剂）

英英释义

单词用法

同义词

反义词

例句

1.Provide oil back design of refrigeration piping under various conditions of evaporator and compressor in freon refrigeration system.

介绍了氟里昂制冷系统中，在压缩机和蒸发器的各种使用情况下，制冷管道的回油设计。

2.This paper is an experimental report on heat transfer enhancement of freon-12 dry evaporator using integral internal spiral fin tube.

本文是一篇关于利用整体型内螺旋翅片管强化沸利昂12干式蒸发器传热的试验报告。

3.Grey system theory is applied to analyze the experimental data of onset of nuclear boiling in Freon natural circulation.

运用灰色系统理论对以氟利昂为工质的自然循环过冷沸腾起始点实验结果进行分析。

4.According to require of temperature and humidity of the intermediate stage genebank, introduced a kind of hot Freon defrosting system.

根据中期种质库的温湿度要求，介绍了一种热氟冲霜系统。

5.It also supplies liquid oxygen, liquid nitrogen, acetylene, carbon dioxide, hydrogen, propane, freon, liquid ammonia, and rare element gas.

还兼营液氧、液氮、液氩、乙炔气、二氧化碳、氢气、丙烷气、氟里昂、液氨及其他高纯和稀有气体。

6.Accommodation air-condition freon piping to be done air-tightness test.

房舱空调氟利昂管系密性试验。

7.The technician checked the air conditioning unit for any leaks of freon.

技术员检查了空调设备是否有氟利昂泄漏。

8.Using freon in refrigeration systems is being phased out due to environmental concerns.

由于环境问题，制冷系统中使用氟利昂的做法正在逐步淘汰。

9.It is illegal to release freon into the atmosphere.

将氟利昂释放到大气中是违法的。

10.Many older refrigerators still use freon as a coolant.

许多旧冰箱仍然使用氟利昂作为冷却剂。

11.You should never try to recharge your AC system with freon yourself.

你绝不应该自己尝试给空调系统充入氟利昂。

作文

Freon is a brand name for a group of chemicals known as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), which have been widely used as refrigerants in air conditioning systems, refrigeration units, and aerosol propellants. The use of freon (氟利昂) has significantly transformed the way we cool our homes and preserve food. However, the environmental impact of these substances has raised serious concerns over the years. The discovery of freon (氟利昂) in the 1920s was a breakthrough in refrigeration technology. It was hailed as a safe and efficient alternative to the toxic ammonia and sulfur dioxide that were previously used. Its non-toxic nature, combined with its ability to remain stable at room temperature, made freon (氟利昂) an ideal choice for many applications. As a result, it quickly became the standard refrigerant in household refrigerators and air conditioning systems. However, as research progressed, scientists discovered that freon (氟利昂) and other CFCs were contributing to the depletion of the ozone layer. The ozone layer plays a crucial role in protecting the Earth from harmful ultraviolet (UV) radiation. When freon (氟利昂) is released into the atmosphere, it eventually rises to the stratosphere, where it is broken down by UV radiation, releasing chlorine atoms that can destroy ozone molecules. This alarming finding led to international efforts to phase out the use of CFCs and HCFCs, culminating in the Montreal Protocol of 1987. The Montreal Protocol was a landmark agreement that aimed to reduce the production and consumption of substances that deplete the ozone layer, including freon (氟利昂). Since then, many countries have successfully transitioned to more environmentally friendly alternatives, such as hydrofluorocarbons (HFCs) and natural refrigerants like ammonia and carbon dioxide. These alternatives are designed to have a lower impact on the ozone layer and contribute less to global warming. Despite the phase-out of freon (氟利昂), it is important to note that some older appliances still contain these substances. Therefore, proper disposal and recycling of refrigeration equipment are essential to prevent any remaining freon (氟利昂) from being released into the atmosphere. Regulations have been put in place in many regions to ensure the safe handling of refrigerants during servicing and disposal. In conclusion, while freon (氟利昂) played a vital role in the development of modern refrigeration technology, its environmental impact has necessitated a shift towards more sustainable alternatives. The journey to phase out freon (氟利昂) reflects the broader commitment to protecting our planet and ensuring a healthier future for generations to come. As we move forward, it is crucial to continue exploring innovative solutions that balance technological advancements with environmental stewardship.

氟利昂是氯氟烃（CFCs）和氢氯氟烃（HCFCs）的一种品牌名称，这些化学物质广泛用作空调系统、制冷设备和气雾剂推进剂中的制冷剂。freon（氟利昂）的使用显著改变了我们冷却家庭和保存食物的方式。然而，这些物质对环境的影响多年来引发了严重的担忧。 freon（氟利昂）在20世纪20年代的发现是制冷技术的一项突破。它被誉为一种安全有效的替代品，取代了以前使用的有毒氨和二氧化硫。它的无毒特性，加上在室温下保持稳定的能力，使得freon（氟利昂）成为许多应用的理想选择。因此，它迅速成为家庭冰箱和空调系统的标准制冷剂。 然而，随着研究的深入，科学家发现freon（氟利昂）和其他CFCs正在导致臭氧层的削弱。臭氧层在保护地球免受有害紫外线（UV）辐射方面发挥着至关重要的作用。当freon（氟利昂）释放到大气中时，它最终会上升到平流层，在那里被紫外线辐射分解，释放出可以破坏臭氧分子的氯原子。这一令人震惊的发现导致了国际社会采取行动，逐步淘汰CFCs和HCFCs的使用，最终形成了1987年的《蒙特利尔议定书》。 《蒙特利尔议定书》是一项具有里程碑意义的协议，旨在减少对臭氧层造成破坏的物质的生产和消费，包括freon（氟利昂）。自那时起，许多国家成功转向更环保的替代品，如氢氟碳化合物（HFCs）和天然制冷剂，如氨和二氧化碳。这些替代品旨在对臭氧层的影响较小，并对全球变暖的贡献较少。 尽管已经逐步淘汰了freon（氟利昂），但重要的是要注意，一些旧设备仍然含有这些物质。因此，妥善处置和回收制冷设备对于防止残余的freon（氟利昂）释放到大气中至关重要。许多地区已制定法规，以确保在维修和处置过程中安全处理制冷剂。 总之，虽然freon（氟利昂）在现代制冷技术的发展中发挥了重要作用，但其对环境的影响使我们必须转向更可持续的替代品。逐步淘汰freon（氟利昂）的过程反映了保护我们的星球和确保未来世代健康的更广泛承诺。在前进的过程中，继续探索平衡技术进步与环境管理的创新解决方案至关重要。