空气压缩机（空压机）的种类很多。
There are many kinds of air compressors.
1、按工作原理可分为三大类：容积型、动力型（速度型或透平型）、热力型压缩机。
1. According to the working principle, it can be divided into three categories: volumetric type, dynamic type (speed type or turbine type) and thermal type compressor.
空压机分类
Classification of air compressor
空压机分类
Classification of air compressor
2、按润滑方式可分为无油空压机和机油润滑空压机。
2. According to the lubrication mode, it can be divided into oil-free air compressor and oil lubricated air compressor.
3、按性能可分为：低噪音、可变频、防爆等空压机。
3. According to the performance can be divided into: low noise, variable frequency, explosion-proof air compressor.
4、按用途可分为：冰箱压缩机、空调压缩机、制冷压缩机、油田用压缩机、天然气加气站用、凿岩机用、风动工具、车辆制动用、门窗启闭用、纺织机械用、轮胎充气用、塑料机械用压缩机、矿用压缩机、船用压缩机、医用压缩机、喷砂喷漆用。
4. It can be divided into refrigerator compressor, air conditioning compressor, refrigeration compressor, oil field compressor, natural gas filling station, rock drill, pneumatic tool, vehicle brake, door and window opening and closing, textile machinery, tire inflation, plastic machinery compressor, mining compressor, marine compressor, medical compressor, sand blasting and painting.
5、按型式可分为：固定式、移动式、封闭式。
5. According to the type, it can be divided into fixed type, mobile type and closed type.
容积式压缩机——直接依靠改变气体容积来提高气体压力的压缩机。
Positive displacement compressor -- a compressor that directly depends on changing the gas volume to increase the gas pressure.
活塞式压缩机——是容积式压缩机，其压缩元件是一个活塞，在
Piston compressor is a positive displacement compressor whose compression element is a piston
活塞式空气压缩机
Piston air compressor
活塞式空气压缩机气缸内做往复运动。
Reciprocating motion is done in the cylinder of piston air compressor.
回转式压缩机——是容积式压缩机，压缩是由旋转元件的强制运动实现的。
Rotary compressor - positive displacement compressor, compression is realized by the forced movement of rotating elements.
滑片式压缩机——是回转式变容压缩机，其轴向滑片在同圆柱缸体偏心的转子上作径向滑动。截留于滑片之间的空气被压缩后排出。
Sliding vane compressor is a rotary variable volume compressor. Its axial sliding blades slide radially on the rotor which is eccentric with the cylinder block. The air trapped between the sliding blades is compressed and discharged.
液体-活塞式压缩机——是回转容积式压缩机，在其中水或其它液体当作活塞来压缩气体，然后将气体排出。
Liquid piston compressor is a rotary positive displacement compressor in which water or other liquids act as pistons to compress gas and then discharge the gas.
罗茨双转子式压缩机——属回转容积式压缩机，在其中两个罗茨转子互相啮合从而将气体截住，并将其从进气口送到排气口。没有内部压缩。
Roots double rotor compressor is a rotary positive displacement compressor, in which two roots rotors mesh with each other to intercept the gas and send it from the inlet to the exhaust port. There is no internal compression.
螺杆压缩机——是回转容积式压缩机，在其中两个带有螺旋型齿轮的转子相互啮合，使两个转子啮合处体积由大变小，从而将气体压缩并排出。螺杆式空气压缩机中的螺杆压缩组件，采用最新型数控磨床内部制造， 并配合在线激光技术，确保制造公差精确无比 。其可靠性和性能可确保 压缩机的运转费用在使用期内一直极低。调整压缩机、一体式压缩机和干燥剂系列都是L/LS系列压缩机中的新产品。
Screw compressor is a rotary positive displacement compressor, in which two rotors with spiral gears are meshed with each other, so that the volume of the two rotors at the meshing place changes from large to small, so as to compress and discharge the gas. The screw compression component of screw air compressor is manufactured by the latest CNC grinder, combined with on-line laser technology, to ensure the manufacturing tolerance is incomparably accurate. Its reliability and performance can ensure that the operating cost of the compressor is extremely low during the service life. Adjustment compressor, integrated compressor and desiccant series are all new products of L / LS series compressor.
速度型压缩机——是回转式连续气流压缩机，在其中高速旋转的叶片使通过它的气体加速，从而将速度能转化为压力。这种转化部分发生在旋转叶片上，部分发生在固定的扩压器或回流器挡板上。
Speed type compressor is a rotary continuous flow compressor in which the high-speed rotating blades accelerate the gas passing through it, thus converting the speed into pressure. This conversion occurs partly on the rotating blade and partly on the fixed diffuser or reflux baffle.
离心式压缩机——属速度型压缩机，在其中有一个或多个旋转叶轮（叶片通常在侧面）使气体加速。主气流是径向的。
Centrifugal compressor-a speed type compressor in which one or more rotating impellers (usually on the side) accelerate the gas. The main flow is radial.
轴流式压缩机——属速度型压缩机，在其中气体由装有叶片的转子加速。主气流是轴向的。
Axial compressor is a speed type compressor in which the gas is accelerated by a rotor equipped with blades. The main flow is axial.
混合流式压缩机——也属速度型压缩机。其转子的形状结合了离心式和轴流式两者的一些特点。
Mixed flow compressor - also speed type compressor. The shape of the rotor combines some characteristics of centrifugal and axial flow.
喷射式压缩机——利用高速气体或蒸汽喷射流带走吸入的气体，然后在扩压器上将混合气体的速度转化为压力。
Jet compressor - the use of high-speed gas or steam jet stream to take away the inhaled gas, and then convert the speed of mixed gas into pressure in the diffuser.
永磁变频压缩机——由于变频化的螺杆空压机利用了变频器的无级调速特点，通过控制器或变频器内部的PID调节器，能平缓启动；对用气量波动比较大的场合，又能快速调节响应。
Permanent magnet variable frequency compressor: because the variable frequency screw air compressor makes use of the stepless speed regulation characteristics of the frequency converter, it can start smoothly through the controller or the PID regulator inside the frequency converter, and can quickly adjust and respond to the situation with large fluctuation of air consumption.
单极压缩螺杆空压机——机头是由一对阴阳转子组成的螺杆空压机。此机型是目前广泛使用的螺杆空压机。
Single pole compression screw air compressor head is a screw air compressor composed of a pair of male and female rotors. This type of screw air compressor is widely used at present.
双极压缩螺杆空压机——机头是由两对阴阳转子组成，气体经过一级压缩完毕后进入二级压缩，压缩比高，功率较以及压缩空压机降低一个档位。
Bipolar compression screw air compressor head is composed of two pairs of positive and negative rotors. After the first stage of compression, the gas enters the second stage of compression. The compression ratio is high, the power is higher and the compression air compressor is reduced by one gear.
双极永磁变频空压机——自2014年后发展的新型节能产品，结合永磁变频和双极压缩技术，具有很高的节能效率。
Bipolar permanent magnet variable frequency air compressor, a new energy-saving product developed since 2014, has high energy-saving efficiency by combining permanent magnet frequency conversion and bipolar compression technology.