DEAR Air Separation Industry Co.

The environmental conditions considered by the air separation plant include: altitude, atmospheric pressure, ambient temperature, air humidity, the content of impurities such as carbon monoxide in the air, etc. These conditions vary with different regions and environments. Different environmental conditions have different effects on the performance of the same air separation plant. 1. Influence of atmospheric pressure on air separation plant: Atmospheric pressure is the pressure exerted on objects in the atmosphere by the gravity of the atmosphere itself. In general, the atmospheric pressure is about 0.1MPa. When the atmospheric pressure decreases, the compression ratio of the air compressor will increase, which will increase the energy consumption of the air separation plant. 2. Influence of ambient temperature and humidity on air separation plant: The increase of ambient temperature will reduce the air compressor's exhaust volume, increase the exhaust temperature, increas

In order to realize the separation of oxygen and nitrogen in the air separation plant, the first thing is to make the air liquefaction, which must try to reduce the air temperature to the liquefaction temperature. The absolute pressure of the lower tower of the air separation tower is about 0.6MPa. Under this pressure, the temperature at which the air begins to liquefaction is about-172 ℃. Therefore, in order to make the air liquefaction, there must be a cold fluid with lower temperature to cool the air. As we know, the air separation plant is cooled by the inflated low temperature air. If the Air wants to expand, it needs to be compressed first, and the compression needs to consume energy. Air expansion can be through throttling expansion or expansion machine expansion. However, the temperature drop of this kind of expansion is limited. For high pressure air of 20MPa ℃ and 30℃, the temperature drop is only 32℃ when throttling to 0.1MPa. In the turbine expander, the maximum temperat...