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Precautions for Startup Preparation

Time: 2022-03-16

What preparations should be made before starting the air compressor after the holiday,Elang group suggest you to do as following:

  1. 1. Check whether the machine circuit is normal; Check whether the oil level is within the normal range;
  2. 2. Turn on the cooling water circulating system of the water cooling unit and test whether the circulating system operates normally;
  3. 3. Add a small amount of clean engine oil from the air inlet and turn manually (belt and direct connected models);
  4. 4. Power on and check whether the three-phase power supply is normal. If there is a cold dryer, start the cold dryer first;
  5. 5. The machine is not shut down for a short time (one week to two weeks). There is no problem without refueling the inlet valve. Check whether the exhaust valve is open when starting up.

Inching method:

  1. 1. Press the start button, press the emergency stop button after running for about 5 seconds, with an interval of about half a minute (for permanent magnet frequency conversion, press the emergency stop after the end of the pre operation time when inching), repeat the above steps for at least 2 times, and then start normally.
  2. 2. If it is found that the temperature rises rapidly and accompanied by abnormal noise during startup, the internal oil has not been circulated, and it must be stopped immediately according to the emergency stop and jogged several times.
  3. 3. After the screw air compressor starts normally, check the operation data, and start normal air supply only after the air compressor operates normally.

Precautions during operation:

  1. 1. After the normal operation of the air compressor, the patrol inspection personnel in the compression workshop shall conduct a comprehensive inspection regularly, and the patrol inspection shall not be less than once an hour.
  2. 2. The temperature of emulsified oil must be between 75 ℃ and 95 ℃ to avoid condensation.
  3. 3. Confirm that the indication of pressure gauge and oil level gauge is normal, and the oil level must be kept between the two red lines during operation.
  4. 4. Whether various protective devices work normally.
  5. 5. When starting for the first time and after motor maintenance, the running direction of the compressor must be confirmed.
  6. 6. It is strictly prohibited to use emergency shutdown in non emergency situations.
  7. 7. It is strictly forbidden to mix lubricants of different brands.

Special attention:

If the air compressor is stopped for a long time and then started, do not directly press the start button. The machine air end is easy to get stuck due to lack of oil. Be sure to start it by inching!