Daily maintenance precautions for refrigerated compressed air dryer

The refrigerated dryer is widely used in the air separation industry for pre-cooling the air at the back end of the air compressor, removing a large amount of moisture in the air, reducing the load of molecular sieve and purifier. It has the characteristics of small volume, low energy consumption and good operating stability. The daily maintenance of the refrigerated dryer has an important role in playing the performance of the machine and improving the production efficiency. Daily maintenance of the dryer needs to pay attention to the following matters:

1, the use and maintenance of the refrigerated dryer must be strictly in accordance with the requirements, especially the inspection and replacement of lubricating oil and grease. The grease replacement cycle of the refrigerated dryer is affected by the temperature of the compression end. If the temperature of the compression end is high, the replacement cycle of lubricating oil is appropriately shortened. Generally, the lubricating oil should be checked once every 10000h of continuous operation. When the compressor is operated for the first time. It is recommended to change the oil at 2000h of operation and clean the oil filter. Check if the system is clean and if the system is in good operating condition. Change the oil every 20,000 hours. When checking and replacing the lubricant, avoid prolonged exposure to air, because the refrigeratedr has water absorption.

2, refrigeratedr failure must be thoroughly investigated after the cause. If necessary, ask the professional company to find and eliminate.

3, refrigerated-drying machine burned then its varnish and other impurities will be all over the refrigeration system, in the maintenance of the system to be thoroughly cleaned. The filter system of the whole system should be thoroughly checked and replaced if necessary. Poor handling will be a threat to the long-term operation of the compressor, and may even be a small loss, resulting in irreparable consequences.

4, after the compressor overhaul, the system should be dehumidified. It is recommended to use dry nitrogen gas through the system for drying, and then vacuum processing. The lower the vacuum level is, the more favorable to the later operation of the system and the higher the efficiency. Leak test and pressure maintenance should be taken seriously, most of the failures of the refrigeration system are rooted in the leakage within the system.

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