Air compressor temperature is too high is how to return a responsibility

Screw air compressor sometimes work for a long time, resulting in the phenomenon of high temperature, especially in the summer, when the temperature is too high fault often occurs, then the air compressor temperature is too high is how to return a responsibility?

1. Poor environmental ventilation and heat dissipation

there are three main situations in which the surrounding environment of the air compressor affects heat dissipation: first, it is too close to wall obstacles; Second, there are other heat sources near the air compressor; third, the front door and side door of the air compressor are open during operation, and the fan cannot form strong airflow.

2. The radiator is blocked

when there is a lot of dust in the environment around the air compressor, long-term operation will cause a layer of dust or sludge to adhere to the outer surface of the radiator, and its internal copper pipe will be easily blocked due to the accumulation of grease, thus affecting the heat dissipation effect.

3. The oil filter is too dirty

the machine has three oil filters side by side. When it is too dirty, the resistance oil cannot enter the compressor according to the normal flow rate, and the compressor will heat up rapidly due to insufficient cooling and lubricating oil. When the inlet and outlet oil pressure difference exceeds 0.18MPa, the filter element needs to be replaced.

4. The oil level of the cooling oil is too low

when the cold machine inspection, the oil level is lower than the lower end of the inspection tube should be immediately replenished.

5. Low oil grade or poor oil quality

the machine uses the manufacturer's special compressor oil. When using other low-grade or inferior oils, the viscosity and specific heat will not reach the standard and the temperature will be too high.

6. The fan belt is broken or loose

when the tape breaks, the air compressor will automatically stop when it runs for about 5 minutes due to excessive temperature. If the tape is too loose, it will slip, which will reduce the fan speed and affect the heat dissipation. At this time, the tightness of the fan tape should be replaced or adjusted.

7. Failure of oil cut-off valve

there is an oil cut-off valve between the oil filter and the compressor. When the oil cut-off valve cannot be opened, the temperature of the compressor rises rapidly after starting due to no oil lubrication and cooling, and it will automatically stop in about 1min. Remove the temperature plug at the discharge end of the compressor host, and you will find that the plug is dry and oil-free, and there will be smoke floating out of the hole. Open the manhole at the bottom of the air compressor, remove the oil cut-off valve, and gently move the valve stem with your fingers to see if it can be pushed back and forth and reset easily. If it is difficult to move or return, the oil cut-off valve needs to be further disassembled. If the valve stem or valve hole has grease, it needs to be polished with fine sandpaper until it can slide easily. If the spring is broken or there is foreign matter stuck, the movement of the valve stem will also be affected. At this time, the spring or spring and spring seat need to be replaced or cleaned.

8. The filter element of oil and gas separator is too dirty

when it is too dirty, the oil will affect the circulation due to excessive resistance, causing overheating and shutdown. This situation is judged from the pressure difference before and after loading. When the pressure difference between the two ends is 3 times of that at the beginning of the startup or the maximum pressure difference reaches 0.1MPa, it should be cleaned or replaced.