When the air compressor is not used for a long time: the cooling water of the air compressor system should not freeze and crack when it goes underground, but in the early spring, the temperature is not stable. If the air compressor is suddenly cold and not very often opened, the water should also be released. The power consumption of compressed air increases slightly with the decrease of low specific volume of air temperature in winter, but the power consumption of cooling water decreases. The idea of good routine protection for air compressor is given, mainly for the protection of lubricating oil to avoid blocking and high temperature carbonization to further block oil pipeline.
In addition, about the start-up of air compressor: screw air compressor in winter start-up mode is: first disconnect the cooling fan switch, press the "Start" button, so that the screw air compressor idle operation. The operating condition of the screw air compressor is investigated by the display device. When the temperature of the screw air compressor reaches about 75-80 C during unloading operation, the constant temperature control valve is admitted to be opened by using the temperature measuring gun or touching the temperature of the inlet and outlet of the cooler by hand.
If the outlet temperature does not rise, the screw air compressor can continue to operate to about 90 C under the unloading condition. Once again, the inlet and outlet of the cooler are recognized. When the temperature difference between the outlet and the import is 20-30 C, the screw air compressor can be loaded and operated. Check the oil level of the oil tank of the screw air compressor. When loading and running, it is better to keep the oil level in the middle of the oil mirror.
When loading and running, the operator must not leave the screw air compressor starter cabinet, should carefully investigate the screw air compressor display data, and accurately judge whether the screw air compressor can continue to operate according to the results of practice. If all the data are normal, the exhaust temperature of screw air compressor should be mainly investigated at this time. When the temperature rises to 9O-95 C, the fan control switch should be closed. At this time, the operator should check the operation status of the unit under full load through the controller, whether there is oil leakage around the unit and cooler, and wait for the screw air compressor to run for 15-25 minutes. If everything is normal, it indicates that the screw air compressor has entered the normal operation, the operator can leave the startup cabinet.
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