1. Adopting high-efficiency energy-saving water pumps and high-efficiency low loss motors, and improving the efficiency of the transmission device.
2. Correctly select the power of the water pump motor. Prevent "big horses pulling small cars". Replace the water pump motor with a larger capacity.
When the power of the motor is much greater than the actual needs, the method of replacing the motor can be used to save electricity.
3. Choose a reasonable head.
When there is too much margin left in the head of the water pump, it will waste electrical energy, so the head of the operating point of the water pump should be reasonably determined.
4. Reduce pipeline resistance.
Eliminate excess fittings and unnecessary turns and sharp corners on the pipeline to reduce pipeline resistance and lower the unit power consumption of water transportation. The methods to reduce pipeline resistance include:
① The pipeline design should be reasonable.
② Increase the pipe diameter or use double pipe drainage to reduce flow velocity.
③ Try to shorten the length of the pipeline as much as possible, reduce joints, elbows, and valves, especially avoid sharp corners.
④ Improve the smoothness of the inner wall of the pipeline or add a coating.
⑤ Timely remove the dirt on the inner wall of the pipeline.
5. Water pump speed regulation saves electricity.
The power consumption of the water pump is directly proportional to the cubic power of the unit speed, so changing the unit speed according to the actual load conditions can greatly save electricity. The adoption of pump speed regulation measures results in significant initial investment but significant energy-saving effects, especially suitable for large capacity water pumps. Note that the larger the head, the flatter the resistance curve. Even if there is a slight change in speed, the flow rate will still change significantly, and the energy-saving effect is poor.
6. Renovate the impeller of the water pump.
When the flow rate of the pump in use is greater than the actual required flow rate, and speed control cannot be used or the cost of the speed control device is not cost-effective, the impeller of the original pump can be turned or replaced to reduce the flow rate and head, in order to reduce the operating power consumption of the pump.
7. The multi-stage pump adopts pumping operation.
If there is excess pressure in the multi-stage pump, 1-2 stages can be removed to improve efficiency and reduce losses. If you draw level 1, you can split any level in the middle. If you draw level 2, you can split levels 2, 4, or 3, 5. The first and last levels are not drawn.