Liquid purification or separation – With external supply means for regenerating medium – e.g.,...
Patent
1987-11-02
1989-12-26
Lacey, David L.
Liquid purification or separation
With external supply means for regenerating medium, e.g.,...
1375135, 137514, 137523, C02B 122
Patent
active
048896233
ABSTRACT:
A brining system including a brine reservoir containing a supply of salt and a brine valve assembly disposed in the reservoir below the level of the salt and including a vessel for accumulating a predetermined quantity of fluid to be discharged into the reservoir to form a regeneration solution. A control valve forming part of the brine valve assembly includes a spool member shiftable between two positions. In one position a fluid supply line is communicated with the accumulating vessel and in a second position the vessel is communicated with the brine reservoir. The spool includes effective pressure areas for monitoring pressures in the supply line and the vessel. When a predetermined level in the accumulating vessel is reached, a flow of fluid into the vessel is terminated and the resulting change in pressure sensed by the spool causes it to shift to a position at which fluid in the vessel is discharged into the brine reservoir while fluid flow from the supply line is concurrently terminated. During a regeneration cycle, "suction" pressures generated in the supply line cause the spool to return to its first position. In one embodiment, the vessel includes a check ball controlled vent port whereas in an alternate embodiment an adjustable float mechanism controls the final fluid level in the vessel.
REFERENCES:
patent: 3163394 (1964-12-01), Downin
patent: 3185302 (1965-05-01), Kryzer
patent: 3326377 (1967-06-01), Abos
patent: 3424311 (1969-01-01), Siedenburg
patent: 3891552 (1975-06-01), Prior
patent: 4147629 (1979-04-01), Geurtsen
patent: 4336134 (1982-06-01), Prior
Crozier David W.
Ellis III: George S.
Prior William C.
Dang Thi
Kinetico, Inc.
Lacey David L.
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