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Design of piping in cold boxes for large air separation units

Design of piping in cold boxes for large air separation units
The design of the piping in the cold box of the large air separation units is complex and complicated, and each pipeline has its own process requirements. The design needs to meet the stability of the gas and liquid during normal operation and to make a comprehensive assessment of the manufacturing, installation, operation, stopping and maintenance aspects.
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Dec 11, 2020
On December 7, 2020, Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as: DEAR air separation) and Shaangu Group once again j
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
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1500/100 Y-type solution for small air separation plant in new material industry
The new material industry system of our country has been initially formed and the development situation is good. With the introduction of national strategic planning such as "The development plan of national strategic emerging industries in the 13th Five-Year Plan" and "The development plan of new material industry in the 13th Five-Year PlanThe new material industry system of DEAR air separation has been initially formed and the development situation is good. With the introduction of national strategic planning such as "The development plan of national strategic emerging industries in the 13th Five-Years Plan" and "The development plan of new material industry in the 13th Five-Years Plan", it has created a good policy environment for the development of new material industry. Recently, DEAR air separation cooperated with clients on the 1500/100 Y-type project of small air separation plant. The overall design of the project is reasonable, and the one-time drive is successful, and all the
4500/4500-type solution for small and medium-sized air separation plant in nonferrous industry
According to the influence and reform of the general environment of the non-ferrous industry, the problems faced by this industry are becoming more and more serious, and the control of production capacity is particularly important. Recently, the 4500/4500 type small air separation equipment project signed with customers by DEAR Air Separation, through the trial run stage, all the technical indicators have reached or exceeded the design standard, and have been continuously sending nitrogen for several days, which has been well received by users.
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Under certain conditions, the unit volume of the packing layer, the volume of liquid accumulated on the surface of the packing and in the packing void is the liquid holding capacity of the packing. The liquid-holding capacity of the filler is related to the shape and size of the filler, the nature of the filler, the surface characteristics of the filler and so on. Also with the gas-liquid two-phase physical properties, the structure of the tower and the tower operating conditions. In practice, w...
Mar 24, 2022
  Slight cold scale (<0.5mm). a.Quick treatment: increase the water temperature or use hot steam to heat the soft scale b.Daily treatment: add polymer dispersant in the small air separation unit freezer, and increase the amount of low temperature scale inhibitor. B.Severe cold scale(>1mm) : Physical method : Clean the copper pipe with hard brushes clamped by electric drill. b.. Chemical method : Use chemical agent, clean the freezer alone and do scale sample analysis bef...
Mar 24, 2022
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