What are the effective energy-saving methods of screw air compressors?
Views : 1060
Author : Runningway
Update time : 2020-07-03 10:24:38
In recent years, more and more topics have been discussed about energy conservation and environmental protection. Even if there is no hard document issued by the central government, energy saving and emission reduction should be the responsibility of every enterprise and everyone. In order to fulfill the promise of energy saving and emission reduction to the world, we have taken a series of measures to increase the intensity of energy saving and emission reduction, including the air compressor of high power consumption equipment.
However, due to the continuous updating and application of new technologies in the direction of energy saving and emission reduction, the potential of screw air compressor equipment in energy saving has been gradually tapped.
Changsheng Air Compressor mainly promotes energy-saving and silent screw air compressors, and has made energy-saving solutions for air compressors for many energy-consuming enterprises. With unique core technology and years of experience in energy-saving industrial operations, service agencies are located all over the country. The following Changsheng analyzes the operation principle and performance characteristics of the air compressor power saving system:
Operating principle of power saving system of screw air compressor:
In view of the many problems in the traditional air compressor air supply control method, it is a good choice to apply an intelligent power-saving protection system for constant pressure air supply control. When this scheme is adopted, the pressure of the pipe network is used as the control object, and the pressure transmitter YB converts the pressure P of the gas storage tank into an electrical signal and sends it to the PID intelligent regulator, which is compared with the pressure setting value P0 and according to the difference The size is calculated according to the established PID control mode, and a control signal is generated to send to the intelligent power-saving protection system, and the output power of the motor is controlled by the system, so that the actual pressure P is always close to the set pressure P0. At the same time, the scheme can increase the function of switching between city power and energy saving, and retain the original control and protection system. In addition, after using this scheme, the air compressor motor can be soft-started from the power saving system from static to rotating work, avoiding Starting impulse current and mechanical shock caused by starting to the air compressor.
Performance characteristics of air compressor power saving system:
1. The power factor is increased from 0.7 to 0.8 to more than 0.96, which greatly reduces the reactive current, reduces the line loss, and improves the quality of the power grid and the efficiency of power supply. For the power supply equipment, it is equivalent to increasing the capacity;
2. Soft start, smooth start without impact. On the one hand, it can reduce the impact on the motor and the grid at the start, which not only protects the motor and extends its service life, but also increases the installed capacity of the system for the grid;
3. Change the control method of the upper and lower pressure limit of the air compressor to constant pressure control, so that the output of the air compressor system accurately matches the required power, reduce unnecessary loss of high energy consumption in areas with high pressure, and avoid low pressure during unloading or no-load operation. Efficiency working state, power saving rate can reach 10～30%;
4. There is no need to adjust power-saving equipment in production, automatic tracking control throughout, and there are multiple (overcurrent, overload, overvoltage, owe, etc.) protection functions, simple, safe and convenient;
5. The noise of the equipment is reduced by about 10DB, the movement of the equipment is more stable, and the environment is improved;
6. The bypass/energy saving conversion function is convenient for users to switch between energy saving and bypass operating states at any time to ensure stable operation.
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