Improving the operation efficiency of hydraulic equipment and reducing its energy consumption is an important way to reduce costs and improve economic benefits, which has always attracted people's attention. The following measures can be taken to improve the energy efficiency of hydraulic equipment:
1. Reasonably configure the hydraulic pump and motor to make them match the power required by the system.
2. Convert the fixed displacement pump into a variable displacement pump so that the flow output of the pump changes according to the usage requirements, thereby reducing the overflow loss.
3. Adopt a multi-pump combined pump station, which can not only meet the technological requirements but also contribute to energy conservation.
4. Change the throttle speed control to volumetric speed control to reduce the throttle loss.
5. Install an accumulator. When the actuator requires a large flow rate, the accumulator can supply oil to the actuator together with the hydraulic pump.
6. Replace the piston pump with a vane pump. A pressurizing pump needs to be installed on the suction pipeline of the piston pump, so it consumes more energy. The vane pump does not have this problem.
7. Strive to reduce the friction and wear of the hydraulic system, minimize various leaks, and improve the efficiency of the system.
8. Simplify the technological process and eliminate steps that are of little significance.
9. Optimize the structure and layout of the connectors and pipelines, and strive to reduce the frictional loss along the pipeline and the local loss.
10. Replace with hydraulic components with good energy-saving performance. For example, the valve pressure drop of the electro-hydraulic servo valve is larger than that of the electro-hydraulic proportional directional valve, so the latter has lower energy consumption.
11. Use the self-weight as the power source to reduce power consumption. For example, the electrode lifting hydraulic cylinder in an electric furnace is driven upward by hydraulic pressure and descends by overcoming the resistance with its own gravity.
With the development of science and technology, the economy, and the progress of society, environmental protection issues have attracted more and more attention. The main tasks of improving the environmental friendliness of hydraulic equipment are to reduce external leakage and noise. The former is achieved by improving the sealing condition, and the latter is achieved by selecting high-quality hydraulic components and rationally designing the hydraulic circuit.
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