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氦氣回收提純的液化要注意什么？

首頁- 新聞資訊 > 行業(yè)資訊

2023-11-13

氦氣回收是指將氦氣從使用過程中收集起來，以便再利用。氦氣回收提純液化的方法有多種，其中常見的是通過冷卻和壓縮來實現(xiàn)。當氦氣被冷卻到其沸點以下的溫度時，它會變成液體。因此，通過將氦氣暴露在低溫環(huán)境中，可以將其液化。常見的冷卻方法包括使用液氮或制冷機。

Helium recovery refers to the collection of helium from the process of use for reuse. There are various methods for helium recovery, purification, and liquefaction, among which the common ones are achieved through cooling and compression. When helium is cooled to a temperature below its boiling point, it will become a liquid. Therefore, by exposing helium to a low-temperature environment, it can be liquefied. Common cooling methods include using liquid nitrogen or a refrigerator.

在液化過程中，氦氣首先被收集到一個密封的容器中。然后，通過將容器放置在低溫環(huán)境中，氦氣逐漸冷卻并轉化為液體。在這個過程中，需要注意控制溫度和壓力，以確保氦氣能夠順利液化。一旦氦氣液化，它可以被儲存和運輸，以供后續(xù)使用。

During the liquefaction process, helium is first collected into a sealed container. Then, by placing the container in a low-temperature environment, the helium gas gradually cools and converts into a liquid. During this process, attention needs to be paid to controlling temperature and pressure to ensure that helium can be liquefied smoothly. Once helium is liquefied, it can be stored and transported for subsequent use.
沼氣提純

然而，液化只是氦氣回收的步。為了提高氦氣的純度，還需要進行提純過程。氦氣的提純通常涉及到去除雜質和其他氣體。常見的提純方法包括分子篩吸附、膜分離和凝固分離等。

However, liquefaction is only the first step in helium recovery. In order to improve the purity of helium, a purification process is also required. The purification of helium usually involves removing impurities and other gases. Common purification methods include molecular sieve adsorption, membrane separation, and coagulation separation.

分子篩吸附是一種常用的氦氣提純方法。它利用分子篩材料的特殊結構和吸附性能，將雜質和其他氣體從氦氣中吸附出來。通過調節(jié)吸附劑的選擇和操作條件，可以實現(xiàn)對氦氣的高效提純。

Molecular sieve adsorption is a commonly used method for helium purification. It utilizes the special structure and adsorption performance of molecular sieve materials to adsorb impurities and other gases from helium. By adjusting the selection of adsorbents and operating conditions, efficient purification of helium can be achieved.

膜分離是另一種常見的氦氣提純方法。它利用特殊的膜材料，通過選擇性透過和阻擋不同氣體分子的特性，將雜質和其他氣體從氦氣中分離出來。膜分離具有操作簡單、能耗低等優(yōu)點，因此在氦氣提純中得到了廣泛應用。

Membrane separation is another common method for helium purification. It utilizes special membrane materials to selectively penetrate and block different gas molecules, separating impurities and other gases from helium. Membrane separation has been widely used in helium purification due to its advantages of simple operation and low energy consumption.

凝固分離是一種基于物質的凝固點差異的提純方法。通過控制溫度和壓力，使氦氣中的雜質和其他氣體凝固，然后將其分離出來。這種方法適用于氦氣中含有高沸點雜質的情況。

Solidification separation is a purification method based on the differences in solidification points of substances. By controlling temperature and pressure, impurities and other gases in helium are solidified and then separated. This method is suitable for situations where helium contains high boiling point impurities.

總結起來，氦氣回收和提純的液化過程是通過冷卻和壓縮將氦氣轉化為液體，并通過分子篩吸附、膜分離和凝固分離等方法去除雜質和其他氣體。這些過程需要精確的控制和操作，以確保氦氣的高效回收和提純。通過回收和提純氦氣，我們可以更好地利用有限的資源，并為各個領域的應用提供高質量的氦氣。

In summary, the liquefaction process of helium recovery and purification involves converting helium into liquid through cooling and compression, and removing impurities and other gases through methods such as molecular sieve adsorption, membrane separation, and solidification separation. These processes require precise control and operation to ensure efficient recovery and purification of helium. By recycling and purifying helium, we can better utilize limited resources and provide high-quality helium for applications in various fields.

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