空压机的原理和结构
Principle and structure of air compressor
空气压缩机是一种用以压缩气体的设备。空气压缩机与水泵构造类似，按形式可分为往复活塞式，旋转叶片、旋转螺杆、离心式、轴流式等等多种形式，油脂加工厂最常用的的是螺杆式，通常所称的螺杆压缩机即指双螺杆压缩机
Air compressor is a kind of equipment used to compress gas. The structure of air compressor is similar to that of water pump. According to the form, it can be divided into reciprocating plug type, rotating blade, rotating screw, centrifugal type, axial flow type and other forms. The screw type is the most commonly used in oil processing plants, and the commonly referred to screw compressor refers to twin-screw compressor