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Discussion on membrane separation, pressure swing adsorption, and deep (normal) cryogenic technologies-----1. Problems with the oil coolers in screw air compressors. 2. What materials should be used in the air circuits of air compressors to prevent oxidation? 3. What is the function of the capacitor that comes with oil-free air compressors? 4. Working principle of the 4v-0.67/7 type air compressor. 5. What measures are generally taken to reduce noise and vibration in air compressor rooms? 6. Why is a flow meter installed at the inlet of the air compressor? 7. Analysis of factors affecting the energy consumption of air compressors. 8. Is it necessary to install a flow meter at the outlet of the air compressor? 9. Has any organization successfully carried out frequency conversion-based energy-saving modifications on the centrifugal air compressors used in air separation equipment? What are the advantages and disadvantages? 10 Installation of the Atlas air compressor. 11 What are the routine inspection methods for oil in the gas coming out of the air compressor? 12 Should surge in the raw material air compressor be monitored with an alarm? How is this action signal introduced into the DCS? 13 I would like to ask the experts: what should be paid attention to when operating a turbine air compressor? Thank you! 14 Analysis of an air compressor accident 15 Reasons for the fracture of the first-stage impeller in Mantou air compressors 16 Reasons for excessive oil in the exhaust port of twin-screw air compressors 17 When using inlet vanes to regulate the load on air separation centrifugal compressors, to what extent can the vanes be closed without causing surging? 18 What is the relationship between the flow rate of the air compressor and the size of the air separation unit? 19. Air compressor energy consumption; 20. Switch from electric drive to steam-driven air compressor. 21. 300,000 cubic psa. What type of air compressor should be used for nitrogen generation? For 2210000 air separation units, are single-axis or multi-axis (commonly known as dual-axis) compressors better? 23 Problems with the drain valve of screw air compressors 24 Selection of air compressors