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Decline in heat transfer performance of heat exchangers for liquid air separation units

Decline in heat transfer performance of heat exchangers for liquid air separation units
In addition, the heat transfer temperature difference between the hot and cold fluid also has an impact on the temperature distribution of the heat exchanger, the greater the temperature difference, intensifying the difference in heat transfer between the different flow channels of fluid, is the heat exchanger channel between the axial and circumferential guide heat increases, resulting in an increase in the temperature distribution parameters of each section.
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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-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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There are 10 ways to transilluminate the welding seam of air separation unit, which are suitable for different occasions. Single wall is the most commonly used transilluminating method, but when the radiation source or film cannot enter the inside small diameter vessel and pipeline, double wall transilluminating method is adopted. The selection of transillumination method should consider all factors synthetically. For example, according to the principle of selecting the transillumination method which is beneficial and improves the sensitivity, single wall transillumination should be selected as far as possible. According to the principle which is conducive to the detection of corresponding defects, the outside radiation source is preferred for the detection of cracks on the inner wall of the container.
Jun 09, 2026
  The cavitation of centrifugal pumps is very harmful. It causes great stress on the surface of the impeller and also reduces the head of the pump of small air separation unit, increases the power and reduces the efficiency. Therefore, measures should be taken in the process of use to avoid cavitation as far as possible. In order to avoid cavitation of small air separation unit, in the process design, should make the liquid into the pump before a certain degree of subcooling, while the pum...
May 26, 2026
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