What are the common problems with circulation pumps?

Circulating pump is a commonly used conveying equipment, widely used in chemical, metallurgical, petroleum, power, papermaking and other fields. However, there may also be some common problems with the circulation pump during use, which can affect the normal operation of the equipment. Let's take a look at the common problems and solutions of circulating pumps.
1. Pump body leakage
During the use of a circulating pump, water leakage from the pump body is a common problem, mainly caused by poor sealing or aging of the sealing ring. The solution is to check if the sealing components need to be replaced or adjust the sealing area.
2. Pump shaft shaking
When the circulating pump is running, severe shaking of the pump shaft can affect the normal operation of the equipment. This may be due to excessive clearance between the pump shaft and bearings or damage to the bearings. The solution is to repair or replace the damaged bearings and adjust the clearance between the shaft and the bearings.
3. Excessive pump noise
During the operation of the circulating pump, if there is excessive noise, it may be caused by wear or improper assembly of internal components of the pump. The solution is to check whether the internal components of the pump are worn, replace damaged parts in a timely manner, and adjust the assembly position of the pump.
4. Pump leakage
If there is air leakage during the operation of the circulating pump, it may be caused by poor sealing or blocked air inlet. The solution is to check if the sealing components need to be replaced and clean the blockage in the air inlet.
5. The outlet temperature of the pump is too high
When the circulating pump runs for a period of time and the outlet water temperature is too high, it may be caused by wear of internal components of the pump or cooling system failure. The solution is to promptly check whether there is wear on the internal components of the pump, clean or replace the faulty components in the cooling system.
6. Difficulty in starting the pump
If there are difficulties during the start-up process of the circulating pump, it may be caused by unstable power supply or motor failure. The solution is to check the stability of the power supply and promptly repair or replace damaged motor components.
7. Decrease in pump flow rate
After a period of use, the flow rate of the circulating pump will gradually decrease, which may be due to wear and tear of internal components or damage to pump blades. The solution is to check whether the internal components of the pump need to be replaced, and promptly repair or replace damaged pump blades.
8. The operating temperature of the pump is too high
When the circulating pump is running, excessive temperature may cause equipment failure and shutdown. It may be caused by excessive wear of internal components of the pump or a malfunction in the cooling system. The solution is to check whether the internal components of the pump need to be replaced, clean or replace the faulty components in the cooling system.
In general, common problems with circulating pumps during use mainly focus on water leakage, pump shaft shaking, noise, air leakage, water outlet temperature issues, difficulty starting, decreased flow rate, and high operating temperature. We can take corresponding measures to address these issues to ensure the normal operation of the equipment and extend its service life. At the same time, regular maintenance and upkeep of the circulation pump can effectively reduce the occurrence of these problems.