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Technical characteristics of two-stage compressor
Classification: Technical Data
Time：2017-09-26 20:05
Two common two-stage compression host structures on the market are shown in the following figure. The A structure adopts the upper and lower integrated structure of the main machine, and the single motor is directly driven by the helical gear, so that each rotor can obtain the optimal speed, and the transmission efficiency is the highest than compression. Structure B adopts the upper and lower integrated structure of the main machine, and adopts dual motors to drive each stage of rotor. Energy-saving principle Natural air enters the first stage of compression through the air filter, mixes with a small amount of lubricating oil in the compression chamber, and compresses the mixed gas to the pressure between the electrodes. The compressed gas enters the cooling channel and comes into contact with a large amount of oil mist, thereby greatly reducing the temperature. The cooled compressed gas enters the second-stage rotor
Two common two-stage compression host structures on the market are shown in the following figure. The A structure adopts the upper and lower integrated structure of the main machine, and the single motor is directly driven by the helical gear, so that each rotor can obtain the optimal speed, and the transmission efficiency is the highest than compression. Structure B adopts the upper and lower integrated structure of the main machine, and adopts dual motors to drive each stage of rotor.
Energy-saving principle
Natural air enters the first stage of compression through the air filter, mixes with a small amount of lubricating oil in the compression chamber, and compresses the mixed gas to the pressure between the electrodes. The compressed gas enters the cooling channel and comes into contact with a large amount of oil mist, thereby greatly reducing the temperature. The cooled compressed gas enters the second-stage rotor for secondary compression and is compressed to the final exhaust pressure. Finally, the compressor is discharged through the exhaust flange to complete the entire compression process.
After the first stage of compression, the air is cooled by enhanced fuel injection to reduce the second stage suction temperature, and the air is compressed at equal pressure to reduce the compression work.
Two-stage compression generally uses an equal pressure ratio to set the inter-stage pressure, so the compression ratio of each stage is much lower than the single-stage compression ratio, the reflux leakage between the rotors is greatly reduced, and the volumetric efficiency and adiabatic efficiency are greatly improved. The corresponding increase in compressed gas production.