Liquid purification or separation – Structural installation – Closed circulating system
Patent
1982-03-05
1983-11-01
Spitzer, Robert H.
Liquid purification or separation
Structural installation
Closed circulating system
210172, 2101981, 222420, B01D 3338
Patent
active
044129181
ABSTRACT:
An automatic and continuous chemical feed system for the introduction of a chemical solution into a liquid body. The system comprises a vessel for containing the chemical solution, a means for filtering the solution as it flows out of the vessel, a downcomer means having an inner diameter sufficiently large to spontaneously vent any gases which are formed in the solution back through the filter means and into the vessel, an adjustable standpipe means to regulate changes in the flow of the solution, a tubular connecting means to connect the downcomer means and the standpipe means and which initially determines the flow rate of the solution, and a tubular conveyance means attached to the standpipe to convey the chemical solution to a selected location in or above the liquid body. Once the vessel has been filled with the chemical solution, the flow of the solution is automatic and continuous. The effective flow rate can be varied by changing the height of the tubular connecting means in the standpipe means; the length and/or the diameter of the tubular connecting means; the height of the liquid in the container; and the concentration of the chemical solution. And anticlogging nozzle may be attached to the tubular conveyance means to permit the introduction of a scale-forming chemical solution below the surface level of the liquid body.
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