demin water plant turndown
demin water plant turndown
(OP)
I have to purchase a demin water package with rated flow 100 mc/h and min flow 10 mc/h.
Unfortunately The minimum flow for the resins beds is 40 mc/h.
Should have I recycle 30 mc/h at the inlet of the package or to the untreated water storage tank?
Thanks
Unfortunately The minimum flow for the resins beds is 40 mc/h.
Should have I recycle 30 mc/h at the inlet of the package or to the untreated water storage tank?
Thanks





RE: demin water plant turndown
Recirculation around the demin system is probably the least expensive option.
RE: demin water plant turndown
The piping distance is 300 meters, SS, 4". The minimum flow rate to be recirculated is 60 mc/h.All the untreated water line is SS.
RE: demin water plant turndown
RE: demin water plant turndown
Distance and size of the line is not important.
Gary Schreiber, CWS VI
The Purolite Co.
RE: demin water plant turndown
If you are just making demin. water for a boiler and are not that concerned about organic material, recirculation around the demin. plant will probably suffice.
If you are trying to make a higher grade of water such as that used in a semi-conductor plant. You probably want to recirculate the water back to the storage tank.
RE: demin water plant turndown
Would it not be better to fill your demin storage tank and then shut down the demin until you could bring it back up to refill the tank. You would have to rinse to quality again which could hurt your plant's water balance but you save all the kWhs burned recirculating water.