1 Compressed air 1.1 defines compressed air, that is, air compressed by an external force. The air has compressibility. The air is compressed by the air compressor to reduce the volume of the air. The air after the pressure is increased is called compressed air.
1.2 Principle Air has a certain amount of space, but it does not have a fixed shape and volume. When the pressure is applied to the air in the closed container, the volume of the air is compressed, and the internal pressure is strong. When the external force is withdrawn, the air will return to its original volume under the action of internal pressure. If there is an object that can move in the container, when the air returns to its original volume, the object will be pushed outward by the pressure of the air inside the container.
1.3 Features The role of compressed air is an important source of power. Compared with other energy sources, it has the following obvious characteristics. Clear and transparent transportation is convenient. There is no special harmful performance. There is no danger of fire, no overload, and the working air can be indispensable everywhere on the ground in many adverse environments.
