Characteristics of pneumatic systems 1
1. The characteristics of compressed air are as follows:
Dosage: Air is available everywhere, and there is no limit to the amount of air you can use.
Transportation: Air can easily be transported by pipelines regardless of distance.
Storage: Compressed air can be stored in the air storage tank and can be used at any time. Therefore, continuous operation of the compressor is not required.
Temperature: Compressed air is not affected by temperature fluctuations and can work reliably even under extreme temperatures.
Hazards: Compressed air has no risk of explosion or fire, so expensive explosion-proof facilities are not required.
Clean: Compressed air discharged without lubrication is clean. Air escaping from leaking ducts or pneumatic components will not contaminate objects. This is extremely important for the food, wood and textile industries.
Structure: The structure of various working parts is simple, so the price is cheap.
Speed: Compressed air is a fast-flowing working medium, so a high working speed can be obtained.
Adjustability: Using various pneumatic components, its speed and output can be infinitely changed.
Overload: The pneumatic mechanism and working parts can be overloaded and stopped, so there is no danger of overloading.
Treatment: The compressed air used by the equipment must not contain dust and moisture, so water and dust removal must be carried out.
Compressibility: The scalability of compressed air makes it impossible for the piston speed to always be uniform and constant.
Output conditions: Compressed air is only economical to use under certain output conditions. The normal working air pressure is 6-7bar
(600-700kPa). Due to different strokes and speeds, the output is limited to between 20,000 and 30,000N.
Exhaust noise: The sound of exhaust air is loud. This problem has now been largely solved through the development of sound-absorbing materials and silencers.
Cost: Compressed air is a relatively expensive method of energy transfer. However, this can be partially compensated by cost-effective pneumatic components.