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Advantages of Turbomachinery of large air separation plant

Advantages of Turbomachinery of large air separation plant
Dec 31, 2021
Author: DEAR AST

Dear Air Separation process simulation, 3D design, stress analysis, safety analysis and other software are among the best in the world, providing users with quality and advanced design services.

 

Compared to piston expanders, turbine expanders have many advantages: the efficiency of turbine expanders is higher than that of piston expanders; when turbine expanders work, gas can pass through continuously and at high speed, and the smaller size can expand a large amount of gas; there are no friction parts in the circulation part of turbine expanders, so there is no need for lubrication, which is conducive to reliable operation of the equipment as well as improving product quality.

 

The technical team of Dear Air Separation Equipment consists of experienced experts and specialised engineering designers to provide customers with engineering design solutions in accordance with international standards, national standards and industry standards, including preliminary design and construction drawing design.

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When the amount of treated air increases, the rising steam in the distillation column will increase, and the amount of liquid to be condensed in the main cooler will increase accordingly, so it has no effect on the reflux ratio in the column. The purity of oxygen and nitrogen remained unchanged in a certain range with the increase of gas volume, and the output increased proportionally with the increase of gas volume. However, with the increase of the amount of condensate in the main cooler, the heat load of the main cooler increases. When the heat transfer area is insufficient, the temperature difference of the main cooler will inevitably expand, and the pressure of the lower column will increase accordingly. At the same time, with the increase of gas velocity in the column, the amount of downflow liquid increases, and the liquid layer on the tray thickens, which increases the resistance of the tray and the pressure of the upper and lower columns. This will adversely affect the sepa
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