Concentrating evaporators – Processes – Spraying
Patent
1991-06-05
1996-04-23
Manoharan, Virginia
Concentrating evaporators
Processes
Spraying
159 401, 159DIG23, 159DIG40, 203 10, 203 49, 203 90, 203DIG17, B01D 114, B01D 116
Patent
active
055099963
ABSTRACT:
A method for evaporating a starting solution to produce an end solution by spraying the starting solution into a gaseous medium under the conditions that the heat content of the starting solution in contact with the gaseous medium is smaller than the heat content of the gaseous medium; the duration of contact is such that most of the evaporation of solution takes place under conditions of constant enthalpy; and the vapor pressure of the gaseous medium is less than the vapor pressure of the liquid/gas interface of the end solution including the step of spraying the starting solution supplied by delivering devices using a pump through spray heads, each spray head includes a member having a plurality of holes the radii of which are not less than 0.025 mm and the distance between them is at least 0.3 mm for producing a shower of starting solution droplets of substantially constant radius substantially independent of spray head operating pressure. An apparatus for evaporating a starting solution is also provided.
REFERENCES:
patent: 3758651 (1973-09-01), Kaspar
patent: 3895090 (1975-07-01), Kobayashi et al.
patent: 4089120 (1978-05-01), Kozischek
patent: 4370860 (1983-02-01), Assaf
patent: 4464309 (1984-08-01), Linhardt
patent: 4704189 (1987-11-01), Assaf
patent: 4742682 (1988-05-01), Assaf et al.
Geophysical Engineering Company
Manoharan Virginia
Sandler Donald M.
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