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What is an air separation unit

What is an air separation unit
What is an air separation unit? In short, the air separation unit is a set of industrial unit that separates the components of air to produce oxygen, nitrogen and argon. Some special needs will also purify noble gases, such as helium, neon, argon, krypton, xenon, etc.
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Sep 11, 2020
On September 7, it was reported that in order to prevent and control environmental pollution by solid waste, protect public health, maintain ecologica
Jul 24, 2020
On July 22, the signing ceremony of Kaifeng Kehui-DEAR project between Kaifeng DEAR air separation and Zhengzhou Kehui Technology was successfully hel
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Large air separation plant KDON (Ar)-18000/36000-600 solution for chemical industry
Chemical industry has the characteristics of large scale, long industrial chain and so on. It is the basic industry and an important part of Chinese national economy. In recent years, environmental protection has been paid more and more attention, and the green development of chemical industry is also very important. In addition, the chemical industry in the industrial integration, scientific and technological innovation is also in constant efforts to advance. DEAR air separation helps the chemical industry to transform and upgrade to be environmental-friendly. DEAR’s large-scale air separation plant KDON (Ar) - 18000 / 36000-600 can use ultra-low pressure discharge energy-saving air separation technology patent, which can reduce the energy consumption of equipment operation by 5% - 15% and save a lot of production costs.
Large air separation plant KDON-15000/35000 solution for metallurgical industry
DEAR air separation has cooperated with customers in metallurgical industry domestic and abroad in many projects, and has rich project experience. DEAR has continuously invested in the research and development of large-scale air separation plant. In view of different fields, DEAR combined with the characteristics of these industry, develops high-efficiency energy-saving air separation plant. DEAR air separation uses the rapid development of internet technology to establish a remote monitoring system to collect real-time operation data of each air separation plant, and provides the best suggestions for users by using big data analysis. The KDON-15000 / 35000 large scale air separation plant, cooperated with customers, has achieved rapid, stable and efficient operation, and highly affirmed by customer.
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The pressure relief of molecular sieve in the purification system is generally rapid in the early stage, not complete and running overtime in the later stage. The pressure relief degree is adjusted by the manual stop valve in front of the pressure relief valve. Through practical adjustment, no matter how it is adjusted, the pressure relief in front is fast, or the pressure can not be exhausted. It is suggested that the valve positioner should be added to the automatic pressure relief valve, and the pressure linear adjustment should be programmed, so that the impact on molecular sieve will be much smaller.
Apr 01, 2025
When the same pressure is reduced, the temperature drop of throttling is far greater than that of expansion. This is because the gas does not work externally during throttling, but when the molecular spacing increases, the potential energy of molecules increases, and the kinetic energy decreases correspondingly, reflecting the decrease of temperature. The expansion refrigeration not only increases the potential energy between molecules, but also makes external work to push the impeller to rotate or push the piston to move. All these energies need to reduce the kinetic energy of molecules, so the molecular kinetic energy decreases more and the temperature drop is larger.
Mar 06, 2025
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