The high temperature of the oil-free air compressor exhaust gas is a frequent problem in the use of air compressors, and the causes are various. Regardless of whether the device is turned on or off, it indicates that the exhaust gas is hot, and if it is not turned on, the fault is reset. The panel still shows high exhaust temperatures. The cause of the analysis should be the temperature sensor and the control panel.
(1) Troubleshooting causes
It is better to measure the resistance of the temperature sensor with a multimeter to be around 100 ohms.
If the short circuit and open circuit indicate that the sensor is damaged; 2. If the temperature sensor is normal, the control board is generally damaged.
(2) Water-cooled oil-free air compressor model - mechanical phenomenon
After the power is turned on, the temperature changes and gradually rises to 225 °C to jump. According to the length of the temperature rise time, it is judged that the host is still a waterway problem.
(3) Waterway problems
1. Low water pressure causes high exhaust gas.
Treatment: Please increase the water pressure according to the instructions. Generally 0.25-0.4MPA is more suitable.
2. The high water temperature causes the exhaust gas to be hot.
Treatment: Please press the air compressor manual to lower the water temperature. Generally controlled between 10-35 degrees.
3. Insufficient water volume results in high exhaust temperatures.
Treatment method: According to the instructions of the air compressor, the pipeline is prevented from reducing the diameter and saving.
4. The particles in the water block the cooler, resulting in a small amount of cooling water and high temperature.
Treatment: Install a Y-type filter on the pipeline and regularly tidy the filter.
5. The oil cooler is fouled, resulting in poor heat transfer. The machine is exhausted at high temperatures.
Treatment: Clean the cooler and wash it with scale cleaning solution. It can also be finished with steel brazing.
(4) Wind road problems
1. The ambient temperature is too high, causing the wind entering the radiator to be insufficient to cool the lubricant. This allows the machine to vent high temperatures.
Treatment: Air compressor room ventilation treatment, so that the ambient temperature is maintained within the range of 5-35 degrees.
2. The radiator is clogged, causing the cooling air to pass through the fins, and the hot air is blocked in the oil-free air compressor, causing the exhaust gas to be hot.
Treatment: Use oil-free, water-free, less than 0.2MPA of compressed air to repeatedly purge up and down. The effect of the arrival is to look up from under the radiator, and the object can be seen through each fin.
3. The front filter is clogged, causing the cool air to enter the machine and the machine to vent high temperatures.
Solution: Clean or replace the pre-filter.
4. The cooling fan turns to the wrong or does not turn, so that the hot and cold air can not be replaced, and the machine exhausts high temperature.
Solution: If the steering is wrong, adjust the fan wiring to make the direction correct. If you do not turn to check the power supply, contactors, fans, thermal protectors and other components.
5. The inside of the radiator is glued or carbonized, which causes the cooling area to become smaller and block the tight air circulation. Allow the air compressor to vent high temperatures.
Treatment: Wash with cleaning oil, if the problem remains. The radiator can be removed and cleaned with high temperature steam or acetone. If it is not enough, you need to replace the new product.
6. Air filter blockage leads to high exhaust gas (this problem is rare).
Treatment: Replace with a new air filter element.
(5) oil road problems
The oil pressure of oil-free air compressor is generally maintained between 2.0 and 2.8. If the oil pressure is too high or too low, the bearing of the oil-free air compressor main engine will be damaged.
Oil-free air compressor exhaust high temperature problems can not be underestimated, directly affecting air compressor operating costs and safe use.
