vacuum pump

简明释义

真空泵

英英释义

例句

1.A vacuum pump is often employed in laboratories to create a controlled environment for sensitive experiments.

真空泵通常用于实验室，以为敏感实验创造受控环境。

2.To ensure proper sealing, the manufacturer tests the packaging with a vacuum pump.

为了确保密封良好，制造商用真空泵测试包装。

3.The laboratory uses a vacuum pump to remove air from the chamber before conducting experiments.

实验室使用真空泵在进行实验之前从腔体中抽取空气。

4.In the food packaging industry, a vacuum pump is essential for extending shelf life by removing oxygen.

在食品包装行业，真空泵对于通过去除氧气来延长保质期至关重要。

5.The mechanic used a vacuum pump to evacuate the air conditioning system before adding refrigerant.

机械师使用真空泵在添加制冷剂之前抽空空调系统中的空气。

作文

A vacuum pump is a device that removes gas molecules from a sealed volume to create a partial vacuum. The importance of a vacuum pump can be seen in various industries, including manufacturing, scientific research, and food preservation. These pumps are essential for processes that require a controlled environment devoid of air or other gases. For instance, in the semiconductor industry, a vacuum pump is crucial for creating the conditions necessary for depositing thin films of materials onto silicon wafers. This process is fundamental to the production of microchips that power modern electronics.In the laboratory setting, a vacuum pump is often used for distillation. By reducing the pressure within the system, the boiling point of liquids is lowered, allowing for the separation of components at lower temperatures. This is particularly useful when dealing with heat-sensitive substances that might decompose if exposed to high temperatures. Moreover, a vacuum pump can facilitate the drying of samples by removing moisture without the need for excessive heat.Another significant application of a vacuum pump is in the field of food packaging. Vacuum sealing extends the shelf life of products by removing air from the packaging, thereby slowing down the oxidation process and inhibiting the growth of microorganisms. This method has become increasingly popular among consumers who wish to preserve the freshness of their food.The operation of a vacuum pump can vary depending on its design. There are several types of vacuum pumps, including positive displacement pumps, momentum transfer pumps, and entrapment pumps. Positive displacement pumps work by trapping a fixed volume of gas and then expelling it, while momentum transfer pumps utilize high-speed blades to push gas molecules out of the chamber. Entrapment pumps, on the other hand, capture gas molecules on a solid surface or within a liquid.When selecting a vacuum pump, it is essential to consider factors such as the desired vacuum level, the type of gases being removed, and the required pumping speed. Each application may demand different specifications, making it vital to choose the right pump for the job. Additionally, maintenance plays a critical role in the longevity and efficiency of a vacuum pump. Regular checks and servicing can prevent breakdowns and ensure optimal performance.In conclusion, the vacuum pump is a versatile and indispensable tool across multiple sectors. Its ability to create a vacuum environment opens up numerous possibilities for innovation and efficiency in processes ranging from industrial manufacturing to culinary arts. Understanding the function and applications of a vacuum pump allows professionals to harness its potential effectively, ultimately leading to advancements in technology and improvements in product quality. As industries continue to evolve, the role of the vacuum pump will undoubtedly remain significant in shaping our future.

真空泵是一种设备，能够从封闭的空间中去除气体分子，以创造部分真空。真空泵的重要性可以在多个行业中看到，包括制造业、科学研究和食品保存。这些泵对于需要无空气或其他气体的受控环境的过程至关重要。例如，在半导体行业中，真空泵对于创造必要条件以将薄膜材料沉积到硅晶圆上是至关重要的。这个过程是现代电子产品微芯片生产的基础。在实验室环境中，真空泵通常用于蒸馏。通过降低系统内的压力，液体的沸点降低，从而允许在较低温度下分离成分。这在处理热敏感物质时尤其有用，因为这些物质如果暴露于高温下可能会分解。此外，真空泵还可以通过去除水分而不需要过多的热量来促进样品的干燥。真空泵的另一个重要应用是在食品包装领域。真空密封通过从包装中去除空气来延长产品的保质期，从而减缓氧化过程并抑制微生物的生长。这种方法在希望保持食品新鲜的消费者中越来越受欢迎。真空泵的操作可以根据其设计而有所不同。有几种类型的真空泵，包括正排量泵、动量转移泵和捕获泵。正排量泵通过捕获固定体积的气体然后排出，而动量转移泵利用高速叶片将气体分子推送出腔室。捕获泵则通过固体表面或液体捕获气体分子。在选择真空泵时，考虑所需的真空水平、被去除的气体类型以及所需的抽气速度等因素至关重要。每个应用可能需要不同的规格，因此选择合适的泵至关重要。此外，维护在真空泵的使用寿命和效率中也起着关键作用。定期检查和维护可以防止故障并确保最佳性能。总之，真空泵是一种多功能且不可或缺的工具，广泛应用于多个领域。它创造真空环境的能力为工业制造到烹饪艺术等过程中的创新和效率开辟了许多可能性。理解真空泵的功能和应用使专业人士能够有效地利用其潜力，最终推动技术进步和产品质量的提高。随着各行业的不断发展，真空泵在塑造我们未来中的作用无疑将继续保持重要。