Liquefied air separation FAQ

The air separation equipment generally uses rivers, lakes or underground water as cooling water. This kind of water usually contains suspended solids (sediment and other dirt) and calcium, magnesium and other heavy carbonate [-Ca (hissu2) 2 and Mg (hissu2) 2], which is called hard water. When there are many suspended substances, it is easy to block the passage, filter screen, Valve and so on of the cooler. When the water temperature rises, calcium carbonate, magnesium and other heavy carbonate are easy to generate calcium carbonate and magnesium carbonate precipitates, which are commonly called scale. Generally, when the water temperature is above 45℃, scale will begin to form, and the higher the water temperature is, the easier it is to scale. The scale attaches to the tube wall of the cooler, the stuffing of nitrogen-water precooler, nozzle or sieve hole, which not only affects the heat transfer and reduces the cooling effect, but also hinders the circulation of cooling water or a...

What should be paid attention to when filling cold insulation materials in air separation equipment

Liquid oxygen, liquid nitrogen and liquid argon are widely used in liquid gasification stations to supply gas directly or fill bottles. In order to ensure the safe operation of the aerator, safety control points should be set up and the following matters should be paid attention: 1) set the low temperature control interlock point of the low temperature liquid outlet air purifier. Control the gas outlet temperature to 5 ~ 30℃. When the outlet temperature is lower than 0℃, the liquid pump will be cut off automatically and the liquid will be stopped from entering the air purifier. The air purifier without liquid pump will give out sound and light alarm; 2) set air purifier water temperature control interlock point. Control the water temperature at 40 ~ 60℃. When the water temperature is lower than 30℃, the liquid pump will be cut off automatically, and the liquid will stop entering the air purifier; 3) set the pressure control interlocking point of gasification gas outlet, and control ...

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