1.ventilation and heat
high temperature in summer, the daily demand for water surge, the corresponding frequency and time of use of the pump is also greatly increased. The motor is the source of pump operation power, overloaded use or frequent start and stop, will make the motor temperature rises rapidly. High-temperature environment so that the heat generated by its operation is not easy to disseminate, easy to cause permanent damage to metal parts, shortening the service life of the pump.
Solution: 1, the pump in the installation as far as possible to choose a cool place, avoid direct sunlight exposure.
2, "accumulation of dust" is the main reason for the decline in cooling efficiency, regular cleaning of cooling components, such as motor casing and wind cover, wind blade, heat sink (if any) on the dust, oil and debris, etc. 3, to ensure that there is sufficient space around the pump, especially the inlet and outlet, to avoid the accumulation of debris blocking the air flow, if necessary, can be added to the exhaust fan. Exhaust fan can be added if necessary.
2. Moisture sealing
Check seals to prevent aging and failure of seals
Summer climate is humid, you need to check the mechanical seals, interface seals, shaft seals and other key sealing parts, leakage found in a timely manner to replace the seals. Motor Moisture Prevention Avoid moisture intrusion into the core components
Some of the indoor pumps with low IP protection level need to ensure that the junction box is well sealed to avoid rain and moisture from entering the interior, and humid environments can be considered for the addition of a moisture heater (activated during shutdown). Preventing Flooding Preventing the Risk of Pump Short Circuit
Heavy rainfall is frequent in some areas in summer, and water pumps with IP waterproofing ratings lower than 7 should be installed in a location that is higher than the ground and less prone to waterlogging, so as to prevent the pump body from being flooded and resulting in short circuits or damage.
3 Regular Inspection
Impeller Component Inspection 01 It is necessary to regularly check whether there are cracks on the impeller and whether the impeller is fixed on the bearings is loose, if such a situation occurs, be sure to repair and replace the impeller in a timely manner.
Lubricant Maintenance and Replacement 02 The grease is easy to thin and oxidize under high temperature, and the replacement interval can be shortened if necessary due to the accelerated deterioration of the grease. Maintaining a good degree of lubrication is conducive to the performance of the bearings and prolongs their service life.
Ensure that the pipeline seal is good 03 cavitation is more likely to occur at high temperatures, noise and damage to the impeller, need to check the inlet and outlet pipelines are not loose, leakage, to ensure that the pipeline seal is good.
Comprehensive inspection of the pump body 04 tighten all the bolts to see if they are loose (thermal expansion and contraction); for the old pump to regularly measure the insulation resistance of the motor winding (especially after the humid environment), to ensure that the insulation is good, to prevent electrocution and burn the machine.
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