双级压缩螺杆空压机是如何节能的？
How does the two-stage compression screw air compressor save energy?
其实二级压缩就是把一级压缩转子和二级压缩转子组合在一个机壳内，并分别通过斜齿轮直接传动。自然空气通过空气过滤器进入第一级压缩，在压缩腔与少量润滑油混合，同时将混合气体压缩到级间压力。压缩后的气体进入冷却通道，与大液压钢坝 量油雾接触，从而大大降低了温度。降温后的压缩气体进入第二级转子，进行二次压缩，被压缩到最终排气压力。最后通过排气法兰排出压缩机，完成整个压缩过程。
In fact, the two-stage compression refers to the combination of the first stage compression rotor and the second stage compression rotor in a casing, which are directly driven by helical gears respectively. 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 interstage pressure at the same time. The compressed gas enters the cooling channel and contacts with a large amount of oil mist, which greatly reduces 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 whole compression process.
