Screw air compressor has been widely used in the modern industry for its advanced nature, reliability and energy saving. Correct maintenance and maintenance screw air compressor, b>Spiral air compressor The reliability of the service life of the reef plays an important role. In this paper, according to my actual work experience, the author makes a simple analysis on how to properly maintain and maintain the screw air compressor. ◆Maintenance and maintenance of the intake air filter The air filter is a component that filters out dust such as dust in the air. The filtered clean air enters the compression chamber of the screw rotor for compression. Because the screw compressor internal clearance allows only a particle size of less than 15u. If the air filter is clogged or broken, a large amount of particles larger than 15u will enter the screw machine, which not only greatly shortens the service life of the lubricating oil filter and the oil separator, but also causes a large amount of particulate matter to directly enter the bearing cavity. Accelerating bearing wear increases the rotor clearance, the compression efficiency is ridiculous, and even the rotor impacts friction due to unreasonable clearance, shortening the service life of the rotor. Air filter core It is best to maintain it once a week, R-9 gland nut, take out the filter element, use 0.2 & mdash; 0.4Mpa compressed air, sweep from the filter cavity to the outside, clean The rag wipes the dirt on the inside of the filter housing. When reloading the air filter. It should be noted that the sealing ring on the front of the air filter should be in close contact with the inner end surface of the casing. Air filter normal condition 1 000 & mdash; 1 500 hours to replace, in particularly harsh environments or different seasons, such as the northern winter and spring and autumn wind season, it is recommended to replace the air filter every 500 hours. After cleaning or replacing the air filter, the components must be reassembled in the original assembly form and sequence to prevent foreign objects from falling into the eight intake valves. In normal times, it is necessary to check the intake telescopic tube for damage, flattening deformation, and whether the joint between the expansion joint and the air filter intake valve is loose or leaking. If abnormalities are found, they must be repaired and replaced in time. ◆Replacement of Lubricating Oil Filter After the first operation for 500 hours, the lubricating oil filter should be replaced. Use a special wrench to remove the oil filter. It is best to add screw oil before installing the new filter. The filter element is screwed back to the oil filter seat with both hands and tightened tightly. It is recommended to replace the new filter element every 1500— 2000 hours. It is best to replace the oil filter at the same time when changing the oil. The replacement cycle should be shortened when the environment is bad. It is strictly forbidden to use the oil filter overdue. Otherwise, due to the serious blockage of the filter element, the pressure difference exceeds the bearing capacity of the bypass valve, the bypass valve is automatically opened, and a large amount of dirt and particles will directly enter the screw main engine, causing serious consequences. ◆Maintenance and replacement of the oil separator The oil separator is a component that separates the screw oil from the compressed air. Under normal operation, the service life of the oil separator is about 3,000 hours, but the quality of the oil and the filtration of the air The degree of twist has a great influence on its longevity. It can be seen that in the harsh environment, the maintenance and replacement cycle of the air filter must be shortened, and even the front air filter should be considered. The oil fine separator must be replaced after the expiration or the pressure difference between the front and the back exceeds 0.12Mpa, otherwise it will cause the electric over-loading and the oil fine separator to break the oil. ◆, screw oil maintenance and replacement of screw oil good or bad for the performance of the screw machine has a decisive impact, good oil has good oxidation stability, separation, rapid foaming High viscosity and good corrosion resistance, therefore, users must use pure special screw oil. The screw oil should be replaced for the first time after 500 hours of the new machine running-in period, and the screw oil should be replaced every 2000 hours after the operation. It is best to change the oil filter at the same time when changing oil. Reduce the replacement cycle when using in harsh environments. Replacement method: 1) Start air compressor for 5 minutes to raise the oil temperature to above 50 °C, and the viscosity of the oil drops. 2) Stop running. When the fuel tank has a pressure of 0.1 Mpa, open the oil drain valve at the bottom of the fuel tank and connect the oil draining barrel. The oil drain valve should be opened slowly to avoid injury from the pressurized oil. When the lubricating oil is dripping, close the drain valve. Unscrew the oil filter and drain the oil in each line and replace it with a new one. 3) Open Li-cho from the mouth to block, inject Li, so that the oil level is within the range of the oil mark, tighten the filling port to check for leaks o4) Lubricating oil must be checked frequently during use, found When the oil level is too low, it should be replenished with new oil in time. The condensed water must be discharged frequently during use. Generally, it should be discharged once a week. It should be 2&mdash in high temperature climate; once every 3 days. Stop for more than 4 hours, open the oil drain valve without pressure in the fuel tank, drain the condensate, and quickly close the valve when the organic oil flows out. 5) Lubricating oil is strictly forbidden to be mixed with different brands. It is strictly forbidden to use the lubricating oil over time. Otherwise, the lubricating oil quality will decrease, the lubricating performance will decrease, the burning point will be lowered, and the high temperature shutdown will be easily caused, causing the oil to spontaneously ignite. ◆The maintenance of the cooler The cooling effect of the cooler directly affects the operating temperature of the air compressor. The plate-fin structure is also easy to accumulate dust, so the maintenance of the cooler requires blowing dry air from 0.4Mpa or more per shift. After blowing, the dust and particles in the air hood are cleaned to prevent the dirt from being blown into the cooler again by the fan, causing blockage and causing high temperature of the machine. If the machine is used in a harsh environment and the surface of the wall is full of oil, it must be cleaned with a carbon cleaning agent.
Label [screw air compressor maintenance]【DSNEair screw air compressor maintenance
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