1. Blockage at the inlet of the water pump: Blockage at the inlet of the water pump is one of the main reasons for the low water flow on the water pump. It may be due to the presence of small particles such as sand, stones, mud and other debris in the inlet pipeline, or the pump inlet being obstructed by plants such as leaves and seaweed. Clearing these blockages can restore the normal water flow of the pump.
2. Damage to the impeller of the water pump: A broken or damaged impeller can cause a decrease in water flow to the water pump. During operation, if the aperture of the water pump impeller is deformed, it can also lead to insufficient water supply. At this point, it is necessary to replace the water pump impeller, select an impeller with the same size as the original water pump impeller, and install it correctly.
3. Insufficient power of diesel engine: If the power of the diesel engine is not high enough, it cannot provide sufficient power, thereby reducing the water supply of the water pump. Replacing the diesel engine with a higher power or installing high-performance equipment such as a turbocharger can increase the power of the diesel engine, thereby increasing the water pump's water supply.
4. Motor reversal: Motor reversal can cause a decrease in water pump flow. By changing the wiring method of the motor, the problem can be solved by making the motor rotate forward.
5. Too many bends: Too many bends in the pipeline will increase resistance, resulting in a decrease in water flow to the pump. Reducing the number of bends can improve this situation.
6. Leakage at the mechanical seal: Leakage at the mechanical seal can affect the efficiency of the water pump, resulting in a decrease in the amount of water supplied. Repairing or replacing the mechanical seal can solve this problem.
7. Pipeline too long: Pipeline too long can cause significant losses and affect the water pump's flow rate. Optimizing pipeline design or using more efficient pipeline materials can reduce losses.
8. Air enters the pipeline and pump body: When the suction port is not deeply immersed in water, air is prone to enter the pump body, reducing the amount of water supplied. Ensure that the depth of the water inlet is sufficient to avoid this problem.
Preventive measures and daily maintenance recommendations:
Regular maintenance: Regular maintenance of the water pump and diesel engine is an important step in eliminating the problem of low water intake. It is recommended to maintain the water pump and diesel engine at regular intervals, especially by replacing filters and maintaining the cooling system.
Pay attention to water quality: Using high-quality water sources can prevent some substances with poor water quality from entering the water pump and diesel engine, reducing the possibility of reduced water intake.
Through the above measures, the problem of low water flow in the diesel engine water pump can be effectively solved and prevented, ensuring the normal operation of the equipment.
