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Air separation unit maintenance procedures

Air separation unit maintenance procedures
Air separation unit maintenance procedures need to determine the maintenance cycle and content, maintenance quality standards, commissioning and acceptance maintenance and troubleshooting. Before the maintenance, the staff should prepare the air separation unit maintenance procedures according to the regulations, so as to avoid missing items and causing unnecessary economic losses.
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Oct 14, 2020
On October 13, it was reported that Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) and Luoyang Zhon
Aug 28, 2020
On August 27, Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as Kaifeng DEAR air separation) and Kaifeng Mobile jointly hel
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Small air separation plant KDON-10000/10000 solution for metallurgical industry
The metallurgical industry has its unique industry characteristics and high requirements for oxygen purity. DEAR air separation has cooperated with domestic and foreign metallurgical industry customers in many projects, has rich project experience, and has continuously invested funds to develop energy-saving and intelligent air separation plant. KDON-10000/10000 is highly praised by customers for its high efficiency and stable operation.
Large air separation plant KDON (Ar)-12000/24000-400 solution for metallurgical industry
Metallurgical industry is an industry to develop metal mineral resources and produce various kinds of raw materials for metal products. With the progress of science and technology, the metallurgical industry has new requirements for the process, process, management and application research and development of air separation plant. For many years, DEAR air separation has provided a number of complete solutions for the metallurgical industry, relying on the deep understanding of the industry and excellent product quality to help the efficient development of the metallurgical industry. KDON (Ar) - 12000 / 24000-400, a large scale air separation plant cooperated by DEAR air separation company and customers, has realized the rapid, stable and efficient operation of the production process, which is highly affirmed by customers. It also provides strong technical and product support for customers to cope with the fierce market competition.
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Under the design working condition, the positive and return air volume of the Heat section of the switching heat exchanger (or cooler) is basically equal. While in the cold section, the return flow volume must be larger than the positive flow air volume, and keep a certain proportion relationship, so that the temperature difference of the cold end is within the required range of moisture and carbon dioxide self-elimination, and the temperature difference of the hot end should be appropriate. In actual operation, when the temperature condition fluctuates, the method of changing the air volume or the distribution of product gas volume is also often used to adjust. When the middle temperature deviation occurs between two groups of switching heat exchanger (or between two groups of refrigerators), air inlet stop valve (or thin film butterfly valve) can be used for adjustment. The group with lower temperature in the middle part is larger, increasing air ventilation. In this way, the requ...
Aug 22, 2024
Besides reducing air loss as much as possible, reducing equipment resistance to increase air volume and reducing loss of running cooling, incomplete loss of heat exchange and leakage as much as possible to reduce expansion air volume, here we analyze the methods of adjusting output mainly from the angle of adjusting rectification working condition: 1) the liquid level should be stable. The stability of liquid oxygen level marks the cooling balance of the equipment. If the liquid oxygen level is high and low, it is very difficult to adjust the purity. Reasonably adjust the expansion amount and the opening degree of liquid-air and liquid-oxygen regulating valve to make the liquid-oxygen surface stable. 2) adjust the purity of liquid air and liquid nitrogen. Rectification in the lower tower is the foundation of the upper tower. The change of the amount of liquid nitrogen and liquid nitrogen will affect the purity of liquid nitrogen and the reflux ratio of the distillation section of th...
Jun 24, 2024
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