I am an EE and really have no knowledge in fluid dynamics. I need to inject CO2 gas into an air line. This is a regular air line as someone would have in a shop. It has an air pressure regulator and a hose of 25 ft. At the end of the hose there is a air nozzle gun. When I actuate the gun I would like air and CO2 gas to come out of the gun. I was thinking that if I put the CO2 gas at a higher pressure it would inject it to the hose (like adding the CO2 at the start of the hose with a Tee). But I am not sure what that would do to the air regulator. Am I going on the right direction here, or is there an easier way to do what I want to do. FTI the air pressure upstream the regulator is 100 psi and down stream is 50 psi.
Thank you very much in advance!