Long shaft submersible pumpsAs a stereotyped product, it is widely used in petrochemical, pharmaceutical and other fields because of its durability and easy maintenance. However, due to the deviation in installation and manufacturing, it often causes various faults of the pump, especially the vibration problem. Vibration during the operation of the pump is extremely harmful. Serious vibration exceeds the standard, which not only causes loud noise, but also damages the parts, resulting in equipment damage and even equipment shutdown, and large economic losses.
It is very necessary to have a clear understanding of the daily fault diagnosis and maintenance of long shaft submersible pumps, which can improve the service life of the product and avoid unnecessary losses.
Long shaft submersible pumpsThe maintenance mainly has the following aspects to pay attention to:
1. Determine the maintenance items according to the technical status monitoring data of the operation, or carry out preventive inspections on a regular basis, and repair or replace the problematic parts.
Second, when dismantling and replacing the main parts, the quality standards of major maintenance should be met.
3. The maintenance items, contents, and quality of the long-shaft submerged pump, as well as the maintenance of the pump casing (diversion shell) and impeller, should meet the following requirements
1. Remove scale and rust, and non-toxic water-resistant and anti-rust coating can be applied to the non-processing surface
2. The cooling water hole, pressure gauge hole and exhaust hole should be unobstructed
3. When the corrosion thickness of the shell wall or guide vane exceeds the original wall thickness 1 3, it should be repaired or replaced;
4. The shape and fitting tolerance meet the technical requirements of the drawings: the dimensional deviation of the overflow part of the impeller guide shell of the long-shaft deep well pump conforms to the provisions of the current industry standard "General Technical Conditions for Long-shaft Deep Well Pump".