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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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Generally, the actual cooling capacity of expander is always less than the theoretical cooling capacity. Under the same inlet and outlet pressure and inlet gas temperature, the lower the efficiency of expander, the smaller the unit refrigerant cooling capacity and the smaller the temperature drop efficiency of expander. The efficiency of expander depends on the size of various losses inside the expander. Due to the existence of various losses, the ability of gas to do external work is reduced in varying degrees. To sum up, the losses mainly include the following aspects: 1. When the air flow passes through the work wheel and the deflector, the loss caused by friction and air flow impact on the runner surface is called flow loss. 2. When the impeller is rotating, the friction heat generated by the gas around the wheel disc will increase the temperature of the gas, which is called friction blast loss. 3. When the gas passes through the deflector, the leakage from the gap bet
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