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Air separation plant maintenance

Air separation plant maintenance
DEAR air separation undertakes the air separation plant maintenance business, whether it is equipment installation or maintenance debugging, we can provide comprehensive support for customers. The technical service network composed of experienced and skilled debugging experts is active in many areas and continuously receives technical skills training. The air separation plant maintenance, overhaul and commissioning of DEAR air separation plant is systematic, and strict inspection list and agreement shall be filled in to meet the standard delivery requirements.
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Aug 26, 2020
On August 24, it was reported that Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) and Hanyuan Bilif
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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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.
Small air separation plant KDON (Ar)-3500/2000-75 solution for oil industry
DEAR air separation has many years of air separation plant manufacturing experience and has provided many sets of air separation plant for different customers in the oil industry for many years. The KDON (Ar) - 3500 / 2000-75 small air separation plant project cooperated by DEAR air separation and customers has helped enterprises to build more high-performance and high-quality products, which has been praised by customers.
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In the air separation unit, the water cooling column is a hybrid heat exchange equipment which uses the crude nitrogen to reduce the temperature of the cooling water from the air cooling column after cooling air, so as to provide the air cooling column with recycling. In the water cooling column, the crude nitrogen from the reversible heat exchanger (or accumulator) is 27-28 ℃ and the relative humidity is about 30%, while the temperature of the cooling water from the air cooling column is 35-45 ℃. When the crude nitrogen meets the hot water sprayed, it absorbs heat, thus reducing the water temperature. Generally, the structure of water cooling column is packed column, cyclone plate column and sieve plate column.
Jul 04, 2025
According to a DEAR air separation user, during the operation of a set of air separation plant that has been in operation for 5 years, it is found that under the condition that the inlet guide vane does not change, the expansion air volume of the expander gradually decreases, and the rotation speed of the expander gradually decreases, the outlet pressure of the booster end of the expander rises from 0.76MPa to 0.8MPa, the inlet temperature rises from - 110 ° C to - 95 ° C, and the working condition of the chilled water pump is poor.
Jun 13, 2025
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