Oil free scroll compressors are known for their high efficiency and energy saving, but in the actual operation process, there are still many factors that can lead to energy loss, affecting its performance and economic benefits. Combined with the working principle and structural characteristics of oil free scroll compressors, we can take measures from the following aspects to effectively reduce energy loss.
I. Improve the operating environment conditions
(A) Control intake air temperature and humidity
Inlet air temperature and humidity have a significant impact on the energy consumption of oil free scroll air compressors. Under high temperature environment, the air density decreases, and more energy is consumed to compress the same volume of air. Therefore, the compressor should be installed in a well ventilated place with low temperature, and if necessary, a cooling device can be installed to pre-cool the intake air. At the same time, high humidity air contains a large amount of water vapor, water vapor condensation in the compression process will increase the compression resistance, but also may cause corrosion of the equipment. Drying and filtering equipment can be installed at the air inlet to remove water from the air, reduce humidity and improve the quality of the air inlet, thus reducing energy loss.
(ii) adapt to changes in altitude
At high altitude, due to low atmospheric pressure and thin air, the compressor needs to consume more energy to reach the set exhaust pressure. For oil free scroll air compressors operating at high altitude, appropriate performance adjustments can be made to the equipment according to the actual altitude or configure pressure boosting devices to compensate for the lack of air intake and pressure loss due to elevation, ensuring that the equipment operates in a highly efficient state and reducing energy waste.
Second, optimize the equipment selection and configuration
When purchasing oil free scroll air compressors, accurately match the exhaust volume and exhaust pressure of the equipment according to the actual air demand. Avoid choosing too high power or exhaust volume far beyond the actual demand for the model, to prevent the “big marat car” phenomenon, resulting in unnecessary waste of energy. At the same time, pay attention to the energy efficiency level of the equipment, give priority to the selection of high energy-efficiency products, such air compressors are usually more advanced manufacturing processes and technologies, in the process of compressed air to reduce energy loss . In addition, the reasonable configuration of auxiliary equipment, such as the size and location of the storage tank, to ensure that the storage tank can effectively buffer the air flow, reduce the frequent start and stop of the air compressor, reduce the start-up energy consumption.
Third, strengthen equipment maintenance
(a) Regular inspection and maintenance of scroll disk
Scroll disk is the core component of oil-free scroll compressor, and its performance directly affects the energy loss. Regularly check the wear and tear of the scroll disk, and if serious wear is found, repair or replace it in time. At the same time, ensure the installation accuracy of the scroll disk, ensure that the engagement gap between the dynamic and static scroll disk meets the requirements, to prevent gas leakage due to excessive gap, increasing the energy loss in the compression process. In addition, clean and maintain the scroll disk, remove surface dirt and impurities, to maintain its good working condition.
(ii) Maintenance of other key components
In addition to the scroll disk, it is also necessary to carry out regular maintenance of the eccentric shaft, bearings and other key components. Ensure the running stability of the eccentric shaft, regularly check whether there is deformation, vibration and other abnormalities, timely adjustment and repair. Provide good lubrication for the bearings and regularly replace the lubricant (if any) to ensure the normal operation of the bearings, reduce the friction resistance, and lower the energy loss. At the same time, carry out regular cleaning and maintenance of air filters, cooling systems and other components to ensure their normal operation, improve the overall operating efficiency of the equipment and reduce energy loss .
Fourth, standardize the operation and operation management
(A) Reasonable setting of operating parameters
It is crucial to set the operating parameters of oil free scroll compressor in a scientific and reasonable way. According to the actual gas consumption, precisely adjust the exhaust pressure to avoid setting the pressure too high, exceeding the actual demand. For every 1 bar increase in pressure, the energy consumption will increase by about 7% - 10%. At the same time, the speed of the air compressor is reasonably controlled, and under the premise of meeting the demand for air, a lower speed is adopted as far as possible, so as to reduce the mechanical friction loss and energy consumption during the operation of the equipment. In addition, the use of intelligent control systems to realize the automatic start-stop and variable load operation of the air compressor, real-time adjustment of the equipment operating state according to the actual air consumption, to reduce unnecessary energy consumption.
(ii) Optimize the management of gas consumption system
Optimize the management of the entire gas consumption system to reduce pipeline leakage and resistance. Regularly check the gas supply pipeline and repair the leakage points in time to avoid the waste of compressed air. Reasonable design of pipeline layout, reduce unnecessary elbows, valves and pipeline length, reduce airflow resistance, reduce energy loss in the process of transportation. At the same time, reasonable deployment of air-using equipment to avoid multiple high consumption equipment started at the same time, resulting in peak air consumption, leading to frequent loading and unloading of air compressors, increasing energy loss.
Through the above measures from equipment selection, operating environment, operation and management to maintenance and other aspects, can effectively reduce the oil free scroll compressor in the operation process of energy loss, improve the energy efficiency of the equipment and operating economy, for the enterprise to save operating costs, but also help to promote industrial production to the direction of green energy-saving development.
