The variable-frequency air compressor immediately senses the actual air pressure and air consumption

The variable-frequency air compressor immediately senses the actual air pressure and air consumption in the system using a pressure sensor. Through the precise coordination of electrical control and variable-frequency control, the motor speed (i.e., the output power) can be instantly controlled without changing the torque of the air compressor motor (i.e., the ability to drive the load). By changing the compressor speed, it responds to changes in system pressure and maintains a stable system pressure (set value) to achieve the on-demand output of high-quality compressed air. When the system's air consumption decreases, at this time the compressed air provided by the compressor is greater than the system's consumption. The variable-frequency compressor will reduce the speed and simultaneously decrease the output of compressed air volume; conversely, it will increase the motor speed to increase the compressed air volume to maintain a stable system pressure value. Just like the energy-saving of fan, motor and water pump, it controls the input voltage and frequency according to the load changes, following the same principle as the variable-frequency controller. 11.pngThe pressure setting of the variable-frequency air compressor can be at a single point. That is, the minimum pressure that meets the requirements of the production equipment can be set as the pressure value. The variable-frequency air compressor will adjust the speed of the compressor based on the fluctuation trend of the pipeline pressure, and even eliminates the unloaded operation of the compressor, thereby saving electricity. 2. Due to the variable-frequency air compressor, the pressure on the pipeline becomes stable, which can reduce or even eliminate the pressure fluctuations. As a result, all the operating air compressors in the system operate under a lower pressure that meets the production requirements, thereby reducing the power loss caused by the upward pressure fluctuations. 3. Since the air compressor cannot operate continuously at full load for a long time, the capacity of the motor must be determined based on the maximum demand. Therefore, the designed capacity is usually larger. In actual operation, the proportion of light-load operation is very high. Hence, using variable frequency speed control can significantly improve the operational efficiency. As a result, there is great potential for energy savings. 4. Some adjustment methods (such as adjusting the valve opening and changing the angle of the blades, etc.) cannot reduce the operating power of the motor even when the demand is low. After adopting variable frequency speed regulation, when the demand is low, the rotational speed of the motor can be reduced, thereby decreasing the operating power of the motor and further achieving energy conservation. 5. Most single-motor drive systems cannot adjust continuously according to the load's weight. However, with the adoption of variable frequency speed regulation, continuous adjustment can be carried out very conveniently, maintaining the parameters such as pressure, flow rate, and temperature, thereby significantly improving the working performance of the air compressor. Energy-saving of air compressors When manufacturers design the installation capacity of air compressors, they usually consider the maximum production conditions of their factory. However, in normal circumstances, due to various reasons, only 60% to 80% of the production capacity can be utilized. This factor is one of the reasons for energy-saving air compressors. The loading and unloading of the air compressor is an important performance of the air compressor's operating condition. The loading time and unloading time are important parameters for the operation of the air compressor. The loading process occurs when the load demand is high, at this time, the motor operation data is monitored and recorded. The unloading process occurs when the load demand is low, at this time, the motor operation data is also monitored and recorded. By comparing the data, it can be seen that there are different electrical energy consumptions during loading and unloading. The loading and unloading are caused by the fluctuation of the outlet gas supply pressure. By adjusting the motor speed and eliminating the loading and unloading process, the purpose of constant pressure gas supply can be achieved. If the loading rate of an air compressor reaches or exceeds 80%, then its energy-saving space is very small and there is no need for improvement. This factor is also one of the energy-saving renovation spaces. The loading and unloading of the air compressor is an important performance of the air compressor's operating condition. The loading time and unloading time are important parameters for the operation of the air compressor. The loading process occurs when the load demand is high, at this time, the motor operation data is monitored and recorded. The unloading process occurs when the load demand is low, at this time, the motor operation data is also monitored and recorded. By comparing the data, it can be seen that there are different electrical energy consumptions during loading and unloading. The loading and unloading are caused by the fluctuation of the outlet gas supply pressure. By adjusting the motor speed and eliminating the loading and unloading process, the purpose of constant pressure gas supply can be achieved. If the loading rate of an air compressor reaches or exceeds 80%, then its energy-saving space is very small and there is no need for improvement. This factor is also one of the energy-saving renovation spaces.