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Yilang-ERC-120SW (conventional machine)
The oil injected screw air compressor has extremely superior and reliable performance, with characteristics such as low vibration, low noise, high eff
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Overview of two-stage screw air compressor
The oil injected screw air compressor has extremely superior and reliable performance, with characteristics such as low vibration, low noise, high efficiency, good power balance, and few vulnerable parts. The use of a two-stage compression screw compressor further improves its energy efficiency. In principle, two-stage compression can save 15-25% energy compared to single-stage compression. It has the following characteristics:
1. The decrease in pressure ratio at each stage improves volumetric efficiency and reduces internal and external leakage at each stage;
2. Reduced the load on the bearings, improved their lifespan, and extended the lifespan of the main engine.
3. Adopting superior profiles to reduce friction resistance during rotor operation, significantly reducing energy consumption and vibration, reducing leakage area, and increasing efficiency by 3-8%, resulting in a larger exhaust volume.
4. The main engine adopts axial intake to reduce intake noise.
5. Low speed direct drive, higher transmission efficiency, less vibration, and lower noise.
6. New inter stage fuel injection atomization cooling design:
Advanced inter stage automatic atomization lubrication technology is adopted in the design. Multiple spray holes are installed on the gas channel after the first stage compression to form a mist like spray curtain. The atomized cooling lubricating oil can quickly absorb the heat generated during the first stage compression process, ensuring that the compressed air is fully cooled before entering the second stage compression, greatly reducing energy loss. Eliminate the need for an intercooler, reduce pressure loss, and lower maintenance costs. From the perspective of engineering thermodynamics, the most energy-efficient compression mode is isothermal compression. : The compression process of fully mixed oil gas mixture cooled by spray entering the second stage is closer to the isothermal process, which improves the energy efficiency of the compressor.
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