当前位置: Home / Faq / Small air separation FAQ /

Why does the time it takes for the oxygen concentrator of the air separation equipment to accumulate liquid during startup differ

Why does the time it takes for the oxygen concentrator of the air separation equipment to accumulate liquid during startup differ
Dec 05, 2023
Author: DEAR AST

The process of accumulating the necessary low-temperature liquid for distillation in a distillation tower is actually a process of storing cold energy. The cooling balance relationship during this process is: total cooling capacity=total cooling loss+cooling capacity required for liquid accumulation

For the same oxygen concentrator, the amount of accumulated liquid required is the same, so the required cooling capacity is also the same. However, the total cooling capacity and total cooling loss of an oxygen concentrator are related to specific conditions, and sometimes there is a significant difference. It is related to the installation, maintenance quality, and operation during the start-up phase of the oxygen concentrator.

The time it takes to accumulate liquid is also related to the heating of the equipment (including the heating of the insulation layer) before startup, as well as whether the equipment and insulation layer inside the cooling tower cool evenly and thoroughly after startup. If the temperature is too high at the end of heating and the cooling stage is not fully cooled, the liquid that appeared earlier will evaporate a large amount after being injected into the upper tower. At the same time, the heat stored in the insulation layer (the amount of cooling required to cool the insulation layer is often greater than the amount of cooling required for the entire liquid accumulation stage) continues to flow into the tower, causing the liquid level to remain stagnant or rise slowly, prolonging the time required for this stage.

DEAR Air Separation customers with complete and efficient engineering and technical solutions to meet their needs.

DEAR Air Separation Solve YourWhy does the time it takes for the oxygen concentrator of the air separation equipment to accumulate liquid during startup differYou can also learn about otherSmall air separation FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
The amount of liquid nitrogen removed from the lower column of the air separation unit will affect the purity of the liquid nitrogen in the lower column and the oxygen enriched liquid air at the bottom of the column. When the liquid nitrogen removal amount of the lower column increases, the reflux liquid participating in the heat and mass exchange of the lower column will be reduced, the temperature rise of the rising steam on the column plate will be correspondingly reduced, the condensation of the rising steam will not be sufficient, the oxygen component will be condensed less, the purity of nitrogen at the column top will be reduced, and the purity of liquid nitrogen will be naturally reduced. At the same time, the temperature rise of the downflow liquid will increase, the liquid evaporation will be more sufficient, more nitrogen components will be evaporated to the top of the column, and the purity of the liquid air at the bottom of the column will be improved accordingly.
2026.01.23
What is the function of oil cooler of air separation equipment?
2026.01.22
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top