-The first load operation of the compressor is carried out after empty running and blowing. The compressor shall operate under the following load:


Release time:

2021-09-15

The first load operation of the compressor is carried out after empty running and blowing. The compressor shall operate under the following load:

The first load operation of the compressor is carried out after empty running and blowing. The compressor shall operate under the following load:
1. Gradually close the blowoff valve or oil-water blowoff valve after driving, and run for 1 hour at 1/4 rated pressure of the compressor; Run at 1/2 rated pressure for 4-8 hours.

2, the compressor in the minimum pressure operation, no abnormal phenomenon, the pressure will be gradually increased;

3. For large high pressure compressors, the operation time under nominal pressure shall not be less than 24 hours;

4. During operation, check the following items:

1. Pressure, temperature and oil supply of lubricating oil. Oil pressure shall not be less than 1kg/cm 2 before it is fed into the distribution piping. The lubricating oil in the crankcase or fuselage shall be wet: The compressor with a crosshead shall not exceed 60℃. Those without crosshead shall not exceed 70℃.

2. The compressor runs smoothly, and the sound of all moving parts should be normal.

3. Measure the inlet and outlet water temperature and check the supply of cooling water. The cooling water is not allowed to flow intermittently and there are bubbles and blockage. Cooling water drainage temperature shall not exceed 40℃.

4. All connecting flanges, shaft seals, inlet and exhaust valves, cylinder heads and water jackets shall not leak air, oil or water.

compressor
compressor
5. The inlet and exhaust valves should work normally and be safe and sensitive.

6. The connecting parts shall not be loose.

7. All levels of exhaust temperature and pressure should be measured in accordance with the provisions of the technical conditions.

8. The heating condition and current value of the motor shall meet the regulations.

5. After completion of operation, disassemble and inspect the following items:

1. Remove the air valve at all levels and the front cover of the cylinder at all levels, check the mirror friction of the cylinder, and find out the reason if there is any friction trace.

2. Check the friction situation of the piston rod surface, and there should be no wear marks and pulling phenomenon.

3. Remove the air valve at all levels, check the fit between the valve plate and the valve body, and replace the cutting plate with spare parts if there is a crack.

4. Check the friction between the cross slide plate and the friction surface of the fuselage guide rail.

5. Remove the big head tile and crosshead pin of the connecting rod, and check the friction of the friction surface.

6. Replace the lubricating oil in the fuselage. After the initial operation of the compressor; Due to the running-in of various parts and the cleaning of lubricating oil, there are a large number of fine metal powder into the lubricating oil, therefore, the machine should be replaced after 24 hours of work. After 200 hours of operation, renew the oil again. After replacement twice, oil should be changed according to regular maintenance requirements.

In order to make the blending even, the initial operation must be sufficient lubrication everywhere.