How to extend the service life of pump
How to extend the service life of pump
Vulnerable parts are the most vulnerable parts of the pump. In the process of use, repair and maintenance, the vulnerable parts need special care.What are the wearing parts of a pump?What should I pay attention to?
1.The pump shell is generally cast iron, special pump lining material, it is easy to crack mechanical force or thermal stress.When the pump in the work due to the impact of cavitation or in the winter did not release the water in the pump shell is also easy to break, such as heavy damage can not be repaired should replace a new pump shell.
2.The pump shaft is generally carbon steel, but due to the quality of manufacturing, use or installation and other reasons are also easy to damage.Pump shaft may appear cracks, bending, journal wear, thread damage, etc., may also appear fracture accident.If the damage is too serious to repair, a new shaft should be replaced.
3. IImpeller is an important part of the pump, made of cast iron.It is also vulnerable to damage due to manufacturing quality and use.Impeller may appear cracks, due to cavitation effect on the surface to form a hole or perforation, long-term washed to make the blade thin or partial wear, or even be crushed by sundry.Some defects can be fixed;Some defects can not be repaired, that is, should be replaced with a new impeller.
4. Sliding bearing bearing bush is generally copper tin alloy cast, wear resistance is very poor, is the most easy to wear and burn out one of the wear parts, bearing bush can generally be repaired, also can be replaced with new pieces.The average service life of rolling bearings is 5000 hours, but improper installation, long service time or poor maintenance, but also easy to wear or damage.Rolling bearings in addition to the individual parts can be replaced by new, generally have to replace the whole.
5. Mouth ring is also known as reducing leakage or wear ring, it is one of the most easily worn parts of the pump.It can be repaired or replaced after being worn out.When replacing the new leak reduction ring, its inner diameter should be configured according to the outer diameter of the impeller inlet.If the outer diameter of the impeller inlet is worn, it can be turned to eliminate the groove and ellipse, and then configured with a smaller inner diameter of the leakage reduction ring, the outer diameter of the impeller inlet can generally be turned three times.
6. The filler will become hard and lose elasticity after using for a long time, will make the pump leakage, water leakage, generally should be replaced with a new filler
7. Water pump oil seal is rubber products, easy to wear and aging, generally to replace a new piece.