Instrument range of air separation unit

The instrument range of air separation unit should not be too large or too small. If the selected range is too small, the pointer may exceed the maximum value, especially when the measurement parameters are abnormal or the pointer fluctuates frequently and the amplitude is large, it is easier to exceed the maximum value and the measured parameter value can not be read, the fault is timely, it is difficult to find and handle, and the instrument is easy to be damaged. Therefore, the range of the instrument should be greater than the maximum value of the measured parameter.

News of Instrument range of air separation unit

Kaifeng DEAR air separation and Shaangu Group signed contract of KDON (Ar) - 28000 / 28000 / 850 air separation unit for Panhua Group in Philippines

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

Faq of Instrument range of air separation unit

What's the reason for using two-stage distillation column in air separation column?

Jan 28, 2021

Influence of process air quantity on distillation condition of air separation unit

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.

Dec 23, 2020