Selection and installation of compressed air piping

Compressed air is mainly used to drive pneumatic tools or equipment spray paint to play a role in transmission and atomization is also the technician wearing air supply mask breathing gas source. Compressed air contains oil particles and oil vapor, condensed water, suspended material metal debris and organic gas and other impurities. In general, compressed air systems include air compressors, freeze dryers, air storage tanks, main and branch pipelines, valves, condensate automatic drain valves, and terminal oil-water separators. Next, let's look at the selection and installation of equipment in the compressed air system.

The compressed air pipeline in hot regions should be laid overhead and thermal compensation should be considered. When the compressed air pipeline is laid overhead in cold area, anti-freezing measures should be taken. For buried pipelines, pay attention to the problems of soil corrosiveness and water seepage. When crossing the road inconvenient to excavate, use the casing to ensure the pipeline life. Use elbow as little as possible, elbow too much will cause the compressed air flow rate down, increase the air compressor load; The connection and welding of compressed air pipeline can ensure the leakage in the conveying process is small.

The compressed air main pipe shall be in a circular loop to ensure adequate flow and steady pressure in each branch pipe, and the whole main loop shall be tilted at an Angle of about 0.5-1% to allow for the installation of automatic drainage valves at the lower level of the pipe to discharge collected condensate. The main pipe should be installed as far as possible to avoid downward bending, if the structure of the building is not avoided, can be installed at each low point automatic drainage valve.

All compressed air used by pneumatic tools or equipment should be filtered by oil and water separators before use. This can reduce the loss of tools and equipment, extend the service life. Depending on the application field or tool, the appropriate oil and water separator should be selected to ensure clean compressed air. Generally, the general pneumatic equipment, dust gun, washing gun, the compressed air quality requirements are lower, can choose single-stage filter equipment, such as SATA filter 424 single oil-water separator.