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  Why does supercooling of switching heat exchanger often occur in DEAR air separation equipment during liquid accumulation stage? How to prevent low temperature after expander?
01/27
Why does supercooling of switching heat exchanger often occur in DEAR air separation equipment during liquid accumulation stage? How to prevent low temperature after expander?
Due to the increase of cooling capacity released by circulating air in DEAR air separation unit, the cooling capacity released by the return gas in the cold sec
  Why does oxygen output and purity decrease when intake pressure of DEAR air separation column of air separation unit drops suddenly?
01/26
Why does oxygen output and purity decrease when intake pressure of DEAR air separation column of air separation unit drops suddenly?
DEAR Air separation equipment also contains trace acetylene and hydrocarbons. Although adsorbed by acetylene absorber, its adsorptive efficiency can only reach
  DEAR air separation:What is average nitrogen purity? What conditions are it subject to?
01/25
DEAR air separation:What is average nitrogen purity? What conditions are it subject to?
When the resistance between the groups of switching heat exchangers of DEAR air separation units is different, the gas will deflect and cause uneven gas flow di
  How does the actual air supply to the centrifugal compressor of DEAR air separation unit change automatically?
01/21
How does the actual air supply to the centrifugal compressor of DEAR air separation unit change automatically?
The pressure of the lower tower is reduced due to the condensation of some gases, so that more air is "sucked in". Therefore, with the rise of the main cooling
  Why does oxygen output and purity decrease when intake pressure of air separation column of DEAR air separation unit drops suddenly?
01/20
Why does oxygen output and purity decrease when intake pressure of air separation column of DEAR air separation unit drops suddenly?
For the 6000m3 / h DEAR air separation plant, the expansion amount is about 19.6% of the process air amount when producing gaseous products, and 27% of the proc
  Why control high pressure air pressure when DEAR air separation unit is warming up? How much control is appropriate?
01/19
Why control high pressure air pressure when DEAR air separation unit is warming up? How much control is appropriate?
The average temperature difference is related to the relative flow direction of cold and hot fluids. The parallel flow of two fluids in the same direction is ca
  How many kinds of refrigeration materials are available for DEAR air separation equipment? What are the characteristics of each?
01/18
How many kinds of refrigeration materials are available for DEAR air separation equipment? What are the characteristics of each?
The air from the cold end of the accumulator enters the lower tower through the automatic valve box (through-1 valve). During the start-up, the expander is expa
  The electric motor connected to the piston expander of the DEAR air separation unit drives the expander to turn when it is started. Why does the generator output electric energy when it is in normal operation?
01/14
The electric motor connected to the piston expander of the DEAR air separation unit drives the expander to turn when it is started. Why does the generator output electric energy when it is in normal operation?
Large size gate valves and pneumatic control valves should be installed vertically to avoid deviation due to the heavy weight of the valve core, which will incr
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