US 12,747,896 B2Granted

Evaporator-condenser system without external heating and cooling

AssigneeIlluminated Extractors, Ltd.

InventorZachary R. Lantz

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Abstract

An apparatus and method for evaporating and condensing liquids in the absence of external heating and cooling. A volatile liquid, contained in either the core or outer chambers of a jacketed container is cooled by depressurization, which results in auto-refrigeration of the liquid as it evaporates. The resulting vapor may be directed to the inlet of a compressor, where the vapor is pressurized and heated, and then directed into the other chamber of the jacketed container from which it was vaporized. Heat is removed from the compressed, heated vapor by the auto-cooled liquid in the other chamber causing the hot, pressurized vapor to transition in turn to a hot vapor, a cooler vapor, a warm liquid, and finally a cold liquid. The resulting condensed and chilled solvent liquid can then be removed from the jacketed container through a back pressure valve, for re-use.

Claims19

Dependent claims

A refrigerant evaporator-condenser system without heating and cooling external thereto, comprising:

a source of liquid refrigerant;
an evaporator-condenser, comprising:
a core chamber having an outer wall, a top and a bottom, forming a fluid-tight core chamber for receiving liquid refrigerant from said source of liquid refrigerant and for holding liquid and vapor refrigerant;
an outer chamber surrounding the core chamber, comprising an outer wall a top and a bottom, and having an inner wall comprising the outer wall of the core chamber, forming a fluid-tight outer chamber for receiving compressed and heated refrigerant vapor;
and
a back-pressure control valve in fluid communication with the outer chamber near proximate the bottom thereof for controlling refrigerant vapor pressure therein and for removing liquid refrigerant;
and
a gas compressor having an inlet for receiving refrigerant vapor from the core chamber, thereby creating reduced pressure on the liquid and vapor refrigerant in the core chamber, and for generating pressurized, heated refrigerant vapor therefrom, and having an outlet for directing the pressurized, heated refrigerant vapor into the outer chamber.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/608,745Filed 18 Mar 2024 · us provisional application
Priority: 18 Mar 2023
Published: US 2024/0310091 A119 Sep 2024
Granted: 29 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F25B 39/02
Evaporators; Condensers: evaporators
F25B 41/20
Fluid-circulation arrangements: disposition of valves, e.g. of on-off valves or flow control valves
F25B 39/04
Evaporators; Condensers: condensers
F25B 49/022
For compression type machines, plants or systems: compressor control arrangements