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Where is the air separation unit used

Where is the air separation unit used
Where is the air separation unit used? Air separation unit is a key unit widely used in metallurgy, petroleum and petrochemical industries, providing oxygen, nitrogen and argon for the production process. The main technical difficulties of air separation unit lie in system design and calculation, air separation unit processing technology, new air pre cooling system, overall design of cold box, etc. The technology of air separation unit is also in continuous progress, and is developing towards large-scale production and diversified product gas.
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Oct 30, 2020
Recently, it is reported from Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) that DEAR air separati
Sep 30, 2020
On September 24, a delegation from QinZhou Federation of Industry and Commerce of Guangxi province came to DEAR air separation for investigation and i
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Small air separation plant KDON-6000 / 3200 solution for circular economy industry
Garbage classification, environmental protection and circular economy have been widely advocated in recent years. At present, Chinese lead-acid battery industry and waste battery recycling industry are undergoing profound changes. The integration of the upstream and downstream industry chain of lead-acid battery industry will become the future development trend. KDON-6000 / 3200, a small air separation plant cooperated by DEAR air separation and its customers, is applied in the circular economy industry to practice the green environmental protection, low consumption and high efficiency. Make a contribution to beautify the environment and realize the transformation of garbage into resources. The high-quality air separation plant provided by DEAR air separation has been praised by customers for making contribution to the rise of circular economy.
2400/1000-type solution for small and medium-sized air separation plant in nonferrous industry
Formulate construction guidelines for non-ferrous metal intelligent mines and factories, and guide the construction of industry intelligent standardization. Reducing production energy efficiency and overall controllable cost, promoting the rapid iteration of production equipment and improving enterprise profits are the problems that need to be solved urgently in current industry. Recently, DEAR air separation cooperated with customers and signed a 2400/1000-type small and medium-sized air separation plant project, which was highly recognized by customers through reasonable scheme design.
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The temperature condition adjustment of the cooler (or switching heat exchanger) is based on the central temperature. The "middle" mentioned here does not refer to the central position of geometric dimension, but refers to the temperature on the barrel (or switching channel) near the central air extraction or the outlet of circulation. It is also related to the location where the thermometer is installed. The purpose of temperature condition adjustment is to keep the temperature difference between cold end and hot end within the specified range. Then, why should the temperature in the middle prevail? We need to take a look at the relationship between the temperature of the middle part and the temperature difference of the cold end and the temperature difference of the hot end, and what rules the temperature changes along the height direction of the cooler (or the switching heat exchanger) follow. The temperature condition change of the cooler (or switching heat exchanger) is general...
Apr 23, 2025
The start-up phase of the whole low-pressure oxygen generator is that liquid empty appears first in the lower tower, and then liquid oxygen appears in the upper tower. The cold energy needed to accumulate liquid in the tower mainly comes from the expansion machine, which uses the low temperature gas after expansion to make part of the air liquefaction in the liquid purifier. But the upper tower itself can not produce liquid, it mainly depends on the liquid from the lower tower into the upper tower. In the phase of hydrops, in order to accumulate the liquid level as soon as possible, the cooling volume should be transferred to the tower as much as possible, the phenomena of overcooling, temperature difference at the hot end and cold loss increase caused by excess cooling of switching heat exchanger should be avoided. As for how to recycle and transfer the cold volume of the air expansion into the tower, whether it is by the liquid purifier to transfer the cold volume to the lower tow...
Apr 15, 2025
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