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How to solve the overload of air separation equipment?

How to solve the overload of air separation equipment?
Jun 17, 2024
Author: DEAR AST

Overloading is when the load on a piece of equipment exceeds its rated load, resulting in erratic behaviour such as noise, vibration and excessive heat. Overload may be caused by factors such as bottlenecks in the production process, overloading of production capacity, or operational errors.
Solution:
1, Check the air pressure, flow rate and temperature parameters of the equipment and make sure they are within the normal range.
2、Ensure that the operating conditions and ambient temperature of the equipment are appropriate.
3、Limit the load of the equipment and avoid overloading.
Solving the overloading problem of air separation equipment needs to start from many aspects, including adjusting parameters, optimising the operating environment, limiting loads, checking and replacing damaged parts, enhancing heat dissipation measures, installing or updating protection devices, and carrying out regular maintenance and inspection. Together, these measures can effectively reduce the risk of equipment overload and ensure the stable operation of air separation equipment.

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When the amount of processing air is reduced, the rising steam and reflux liquid in the upper column will be reduced, but the reflux ratio will not change. Therefore, the reduction of processing air in a small range will not affect the purity of oxygen and nitrogen, and the reduction of processing air volume will help to reduce the pressure of the upper and lower columns. However, according to the material balance, the production of oxygen and nitrogen will naturally decrease when the amount of processing air is reduced. If the amount of processing air is too small, there will be leakage on the tray. If the heat and mass exchange of the leaked liquid is not sufficient, the purity of oxygen and nitrogen will be greatly affected, and even the normal production can not be realized. Therefore, the minimum allowable load of distillation column is generally specified.
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