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What are the air compression settings for air separation equipment?

What are the air compression settings for air separation equipment?
Jul 03, 2024
Author: DEAR AST

There are self-cleaning air filters, steam turbines, air compressors, booster engines, instrument compressors, etc.
(1) Self cleaning filters generally increase with the increase of air volume, the number of filter cartridges, and the number of layers. Generally, a single compressor needs to be equipped with a separate filter, which is also installed at the upper air outlet.
(2) A steam turbine is a type of work in which high-pressure steam expands and does work, driving the coaxial impeller to rotate, thereby achieving work on the working fluid.
(3) The investment in large air separation units for air compressors is generally single axis isothermal centrifugal compressors. The air compressor adopts outlet venting without setting reflux pipelines, and generally has minimum suction flow anti surge requirements. The inlet guide vanes are used for flow regulation. The main air compressor is equipped with a water washing system to flush the surface sediments of impellers and volutes at all levels.
(4) Boosters are generally invested in two types of large air separation units: single axis isothermal centrifugal compressors and gear centrifugal compressors. Among them, gear compressors have a significant advantage in energy consumption, especially in high pressure conditions.
(5) There are generally three forms of instrument air compressors: oil-free screw compressor, piston type, and centrifugal type. Due to the natural oil-free nature of piston type and centrifugal type, there is no need for an oil removal device. Only a drying device (for water removal) and a precision filter (for solid particles removal) are needed; Screw machines generally have two types: oil with oil and oil without oil, and then oil is removed. Oil injection screw machines need to be equipped with oil removal devices and high-precision oil removal filters to meet process requirements; When the gas volume is large, centrifugal compressors have advantages, such as fewer vulnerable parts, easy maintenance, and high cost-effectiveness.

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