The reason for the temperature increase of permanent magnet variable frequency air compressor

The normal operating temperature of the permanent magnet variable frequency air compressor is 75 ℃ -95 ℃. When the temperature exceeds this upper limit, it belongs to high temperature. There are many reasons for high temperature, and it is analyzed and judged that the permanent magnet variable frequency air compressor is high

The reason for temperature is a prerequisite for solving problems. Why is the temperature of the permanent magnet variable frequency screw air compressor high?

1. Lack of lubricating oil

The lubricating oil of permanent magnet variable frequency screw air compressor not only has lubrication and sealing functions, but also can cool the unit, so it is also called "coolant". Solution: Add air compressor oil. If the temperature is too high due to the deterioration of the lubricating oil, replace it.

2. The cooler is blocked

A cooler, also known as a "radiator". The lubricating oil circulating in the permanent magnet variable frequency screw air compressor needs to be cooled by a cooler before it can flow back to the main air compressor. When cooling

When the equipment is dirty and blocked, the lubricating oil of the air compressor cannot be cooled, so the temperature will remain high after recovery. Solution: Clean the cooler with dry compressed air. If cleaning is not possible, please remove and clean.

3. Oil filter blockage

The function of the oil filter is to filter impurities in the lubricating oil and protect the main engine of the permanent magnet variable frequency air compressor. Long term non replacement, or harsh usage environment, clogged oil filter, empty

The internal oil flow of the press is small, and the main engine cannot receive sufficient lubricating oil for timely cooling, resulting in high temperature phenomenon. Solution: Replace the oil filter or perform oil circuit maintenance.

4. Temperature control valve malfunction

The function of the temperature control valve is to control the fuel injection temperature of the main engine of the fuel injection permanent magnet variable frequency air compressor; It uses a temperature control element to control the opening of the element valve core based on the oil temperature, thereby controlling

By using the oil volume of the oil cooler, the hot and cold oil is mixed and sent to the main engine, thereby controlling the fuel injection and exhaust temperature! Solution: Replace the temperature control valve.

5. Main controller failure of permanent magnet variable frequency screw air compressor

6. Temperature sensor malfunction