What are the reasons for the high power consumption of air compressor?

The main reason for the high power consumption of air compressor is the energy-saving solution of the single screw air compressor lubricated by Gellanklin water.

As the core energy-consuming equipment in industrial production, the power consumption of air compressor accounts for 20%-40% of the total electricity consumption of enterprises. Excessive power consumption not only increases operating costs, but also contradicts the energy-saving requirements under the "double carbon" goal. The following is a systematic analysis of the core reasons for the high power consumption of air compressors from the three dimensions of technical principles, operation management and equipment selection, and describes the energy-saving technical advantages of Granklin water-lubricated single screw air compressors.

1. technology principle level: compression efficiency and heat loss is the key

1. large heat loss during compression
   the traditional air compressor (such as oil-injected screw type) uses oil to cool the compression heat, but the oil film lubrication causes the rotor gap to increase and the compression efficiency to decrease. At the same time, the increase of oil temperature requires additional energy consumption for cooling, forming an energy consumption cycle of "compression-heating-cooling. For example, the actual energy efficiency of the fuel injection air compressor is 15%-20% lower than the theoretical value, mainly due to heat loss.

2. High mechanical friction loss
   mechanical parts such as gear transmission and bearing lubrication have frictional resistance, especially when running at full load, the frictional power consumption can account for 8%-12% of the total input power of the air compressor. The friction loss of traditional twin-screw air compressor is more significant due to the large meshing gap between the male and female rotors.

granklin solution:
water-lubricated single screw technology is used to replace lubricating oil with water to realize the compression process. The specific heat capacity of water is 4 times that of oil, which can quickly absorb the heat of compression, so that the compression process is close to the isothermal state, and the heat loss is reduced by 30%. At the same time, the single screw structure has no speed increasing gear, the star wheel plate directly meshes with the screw, the mechanical friction loss is reduced by 50%, and the comprehensive energy efficiency is improved by more than 20%.

2. operation management level: improper gas matching and maintenance increase power consumption.

1. Gas consumption and gas supply do not match
   if the selection of air compressor is too large or the gas consumption fluctuates frequently, the equipment is in the state of "big horse-drawn trolley" for a long time, and the power consumption per unit gas volume increases sharply when the empty load rate exceeds 30%. For example, a 75kW air compressor still consumes 25% of the rated power when it is unloaded, and the annual waste of electricity exceeds 50000 yuan.

2. Performance degradation due to insufficient maintenance
   filter element clogging, cooler dust, rotor wear and other problems will reduce the compression efficiency. According to statistics, the power consumption of air compressors without scheduled maintenance can be increased by 10%-15%, and the service life of equipment can be shortened by 40%.

granklin solution:

• intelligent frequency conversion control: Equipped with pressure sensor and frequency converter, adjust the motor speed in real time to ensure accurate matching of air supply and air consumption, and control the empty load rate within 5%.
• Maintenance-free design: The water lubrication system does not need to replace the filter element. The star wheel is made of polymer wear-resistant material, and the service life exceeds 100000 hours, reducing performance attenuation caused by improper maintenance.
• remote monitoring platform real-time feedback of equipment operation data through Internet of Things technology, early warning of failures, and avoiding energy consumption fluctuations caused by unplanned downtime.

3. equipment selection level: traditional technology limitations lead to long-term high power consumption

1. twin-screw structure efficiency bottleneck
   the traditional twin-screw air compressor has a large meshing gap between the yin and yang rotors, and the leakage triangle area accounts for 5%-8% of the exhaust volume, which leads to the reduction of compression efficiency. Especially in partial load operation, the leakage is further increased, and the power consumption per unit gas volume is increased.

2. Additional energy consumption of oil lubrication system
   oil injection air compressor shall be equipped with oil separator, cooler and other ancillary equipment, and oil temperature control requires additional energy consumption. For example, maintaining the oil temperature below 45°C consumes 5%-8% of the input power.

granklin solution:

• single screw + star wheel structure: The screw and the star wheel are precisely matched, the leakage is controlled within 1%, and the compression efficiency is 10% higher than that of the twin screw.
• Water Lubricated Alternative Oil System: Eliminate auxiliary equipment such as oil separators and coolers, and reduce additional energy consumption by 5%-8%.
• two-stage compression technology: Reduce single-stage compression ratio through staged compression, reduce compression power, and increase energy efficiency by 15%-20% compared with first-stage compression.

Conclusion: The high power consumption of air compressor is mainly due to the limitation of technical principle, extensive operation management and improper equipment selection. Granklin water lubricated single screw air compressor through water lubrication technology, single screw structure, intelligent control and other innovative design, to achieve "efficient compression, accurate gas supply, maintenance-free operation", is the ideal choice for enterprises to reduce energy consumption and enhance competitiveness.