Whether the sieve tray of the fractionation tower is blocked, whether the secondary rectification condition is normal, whether the outer cylinder of the fractionation tower is frosted or sweated, and if so, the fractionation tower should be heated and blown off, and the pearl sand is removed to perform airtightness. The full interview leaked. The leak should be repaired. Whether the purifier molecular sieve regeneration is complete. This is to check whether the regenerative gas volume and temperature meet the requirements. The volume of the blower fan increases, and the amount of adsorbed moisture and carbon dioxide in the purifier increases accordingly, and the original purifier is overloaded. Therefore, it is necessary to switch in time, and the oil-water separators at all levels of the air compressor should be blown off more than the original. The on-site analysis and processing faults are as follows: repair the air compressor first, second and third-stage valves; replace the leaking blow-off valve; the expansion machine inlet and exhaust valves and the valve seat collide for a long time, so that the valve seat part is detached, the tightness is not tight, and the valve is replaced. Rod and valve seat; adjust the gap between the inlet and outlet valve stem and the ejector to meet the equipment requirements; the fractionation tower is thoroughly heated and blown off. Results: The oxygen extraction time was 7 hours and 30 minutes, the output was 50m3/h, and the output of the blower fan was increased to 70m3/h. The problem was solved. Cryogenic technology is a professional publication of the gas separation and liquefaction equipment industry in China, a national core journal. Founded in July 1961, it has a high reputation and great influence in the industry. Pe Foam Sheet Making Machine,Pe Foam Sheet Production Making Machine,Pe Foam Sheet Production Line,Ps Foam Extrusion Line haiyuanmachinery , https://www.lkfoamfoodboxmachine.com