Dalian Empire Shield Pump Repair
Thread Content
Inspection and maintenance status of Dalian Empire shield pumps.
Dirt got in, or it was used up over time; both the sliding bearings and thrust bearings are completely ruined
The material is a 30% KOH solution.
TRG indicated that no attention was paid at the time; it was disassembled after the body was directly carried away. The vibration level on the rear side of the pump currently in operation is relatively high; today’s measured value for X was 7.6 ； Y10.3 ； Z: 0.3, yet the TRG reading is still around 3/5 in the green zone; disassembly and inspection are planned for tomorrow.
It is determined that the pump was not selected properly; the actual operating conditions are far from optimal, and the medium is not clean, which may cause blockages in the main circulation channels and result in poor heat dissipation for the bearings.
A significant difference between the actual operating conditions and optimal performance inevitably leads to excessive vibration in the pump; motors operating above their rated capacity tend to overheat. In shielded pumps, the inability to dissipate heat results in the medium vaporizing, which in turn causes damage to the bearings