Cooling Tower Acid feed distribution header design
Cooling Tower Acid feed distribution header design
(OP)
Does anyone know how to design a distribution header (sparger) for a cooling tower for 93% sulfuric acid.?
The normal flow rate is 0.014 gpm (0.038 gpm max). Can this be even done using pure acid. or should a water carrier line be used....what water flow rate should be used if water carrier is used? Any other ideas welocomed.
The normal flow rate is 0.014 gpm (0.038 gpm max). Can this be even done using pure acid. or should a water carrier line be used....what water flow rate should be used if water carrier is used? Any other ideas welocomed.





RE: Cooling Tower Acid feed distribution header design
What we do is we have a small side stream of cooling water. Probably twenty gallons a minute that feeds back to the return line for the towers. We feed our chemicals into the side stream at what ever rate required and they are diluted with the side stream so there are no fancy alloys involved. Mostly PVC piping.
Regards
StoneCold
RE: Cooling Tower Acid feed distribution header design
RE: Cooling Tower Acid feed distribution header design
StoneCold
RE: Cooling Tower Acid feed distribution header design
The problem with diluting the acid is finding the right materials for the job that will stand up to the heat of solution and the corrosion.
If you use a perforated pipe for the distributor, size the holes for a 3 - 5 psi drop across the holes to get good distribution.
Put a backpressure regulator at the discharge of the acid feed pump. Use a set point of about 35 psig. This puts enough backpressure on the metering pump so that it will accurately meter the acid and prevents siphoning of acid from the charge tank or bulk storage tank.
RE: Cooling Tower Acid feed distribution header design