IE A031OJSC STOYLENSKY GOK · REPORT OF 21.01.2011
Compressor 4VM10-100/9: less power and vibration without unit teardown
Idle-running power consumption decreased, vibration of the housing and base fell. 3.0 % — power consumption in unloaded mode, 467.12 → 455.11 kW; 26–37 % — vibration displacement on housing and base, 9.0–83.3 → 6.4–64.2 µm (2011).
with signatures and stamp
Key results
| EQUIPMENT | DUTY AND RUNNING TIME | WHAT WAS MEASURED |
|---|---|---|
| Reciprocating opposed-piston air compressor 4VM10-100/9, serial no. 56 | Regular service; “after” measurements taken after 677 h of operation from the start of treatment | Power consumption, oil pressure and temperature, vibration at six control points |
Compressor operating parameters
| PARAMETER | BEFORE TREATMENT | AFTER TREATMENT | CHANGE |
|---|---|---|---|
| Power consumption, unloaded mode | 467.12 kW | 455.11 kW | −12.01 kW |
| Oil pressure in the lubrication system | 3.6 kgf/cm² | 3.6 kgf/cm² | no change |
| Oil temperature | 52.4 °C | 52.3 °C | −0.1 °C |
Measured with an electronic electricity meter at a rotor current of 220 A, 132 h after the scheduled oil change. According to the report’s conclusions, the average reduction is 3.0 %.
Vibration at control points: housing (No. 1–No. 4) and base (No. 5–No. 6)
| POINT | DIRECTION | VIBRATION ACCELERATION, m/s² | VIBRATION VELOCITY, mm/s | VIBRATION DISPLACEMENT, µm |
|---|---|---|---|---|
| No. 1 | vertical | 4.21 → 2.49 | 1.81 → 1.00 | 9.00 → 6.41 |
| No. 1 | horizontal | 4.92 → 4.17 | 4.80 → 3.22 | 83.3 → 64.2 |
| No. 1 | axial | 3.55 → 3.20 | 1.87 → 0.91 | 15.9 → 8.47 |
| No. 2 | vertical | 2.65 → 1.77 | 1.75 → 0.94 | 9.54 → 6.75 |
| No. 2 | horizontal | 4.81 → 3.21 | 1.38 → 2.79 | 60.7 → 45.5 |
| No. 2 | axial | 4.73 → 2.18 | 1.77 → 0.907 | 13.1 → 8.67 |
| No. 3 | vertical | 4.17 → 2.53 | 2.01 → 1.28 | 15.2 → 13.4 |
| No. 3 | horizontal | 5.89 → 4.52 | 3.56 → 2.77 | 78.2 → 55.9 |
| No. 4 | vertical | 4.12 → 2.08 | 1.96 → 1.03 | 16.6 → 11.2 |
| No. 4 | horizontal | 4.57 → 4.42 | 1.08 → 2.51 | 71.6 → 44.0 |
| No. 5 | vertical | 3.15 → 1.85 | 1.93 → 0.975 | 16.7 → 12.4 |
| No. 5 | horizontal | 3.93 → 2.15 | 3.07 → 2.18 | 65.8 → 42.6 |
| No. 6 | vertical | 3.29 → 1.17 | 1.63 → 0.586 | 11.50 → 7.19 |
| No. 6 | horizontal | 3.15 → 2.03 | 2.36 → 1.43 | 45.5 → 26.8 |
Vibrometer “Sendig – 911”. Vibration displacement decreased in all 14 measurements, vibration acceleration also in all 14.
Report conclusions
Current equivalent
- Revitalizant gel for compressors and bearingsCompressors · bearings · spindles
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
How such units are treated:
About this result:
Limits of this report: The results apply to the reciprocating opposed-piston air compressor 4VM10-100/9 under the conditions of the compressor station of OJSC Stoylensky GOK; on other equipment and in other operating modes the figures may differ.