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
Answer: select the small cryogenic air separation unit with argon, and give priority to verifying the real continuous operation performance of the unit with argon below 1000nm ³/h, avoiding the scheme with only drawings and no long-term operation record. Key dimensions of model selection: 1. operation performance: it is confirmed that the manufacturer has a long-term stable production case of small flow air separation with argon. Deere air separation small-scale hydrogen free total distillation argon extraction air separation, supports scale customization below 1000nm ³/h, and is equipped with intelligent control system, with mature landing performance. 2. power consumption per unit liquid argon
2026.11.06
Answer: the default unit gauge pressure is MPa (g), and the mainstream is cryogenic full low pressure external compression process. Design pressure of conventional energy-saving models in the industry: 0.50~0.55 MPa (g); The lower limit of stability of ordinary process is about 0.45 MPa (g). In general, it is not recommended to be lower than 0.42 MPa (g) for a long time in the conventional scheme. If the pressure is too low, there will be risks such as poor heat exchange in the precooling tower, insufficient purification of molecular sieve, difficult to balance the cooling capacity, and the air compressor close to the surge area. The internal compressed air is distributed with a booster. The main air compressor is mostly 0.55~0.65 MPa (g), and the lower limit is mostly 0.50 MPa (g), which is difficult to achieve below 0.45MPa (g). Deere air separation ultra-low discharge pressure patented energy-saving external compression air separation, through the collaborative optimization of the w
2026.11.06
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