# US 2002/0116935 A1 · Dehumidifier system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2002/0116935 A1 - Document ID: US20020116935A1 - Status: Published application - Kind: A1 - Application number: 10/052,227 - Filed: 2002-01-18 - Published: 2002-08-29 - Earliest claimed: 1997-11-16 - Assignees: Drykor Ltd. - Inventors: Mordechai Forkosh; Dan Forkosh; Tomy Forkosh - Web page: https://patentgrep.com/patent/US20020116935A1 ## CPC - F24F 3/1417: {with liquid hygroscopic desiccants} - B01D 53/263: {by absorption} - F24F 3/1411: {by absorbing or adsorbing water, e.g. using an hygroscopic desiccant} - F24F 5/001: {Compression cycle type} - F24F 2003/144: {by dehumidification only} - F24F 2003/1458: {using regenerators} - F24F 2203/021: Compression cycle - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A dehumidifier system comprising: a dehumidifier into which moist air is introduced and contacted with a liquid desiccant solution associated with the dehumidifier to remove moisture therefrom; a regenerator having a liquid desiccant solution associated therewith and contacted with air which removes moisture therefrom, said liquid desiccant solution being in liquid communication with the liquid desiccant solution associated with the dehumidifier; a refrigeration system that comprises a plurality of heat exchangers, a refrigerant and a compressor, wherein the refrigerant passes through the heat exchangers, the heat exchangers including a first heat exchanger in thermal contact with the liquid desiccant solution associated with said dehumidifier, a second heat exchanger in thermal contact with the desiccant solution associated with said regenerator and a third heat exchanger that is not in contact with said desiccant solutions. ## Claims ### Claim 1 A dehumidifier system comprising: a dehumidifier into which moist air is introduced and contacted with a liquid desiccant solution associated with the dehumidifier to remove moisture therefrom; a regenerator having a liquid desiccant solution associated therewith and contacted with air which removes moisture therefrom, said liquid desiccant solution being in liquid communication with the liquid desiccant solution associated with the dehumidifier; a refrigeration system that comprises a plurality of heat exchangers, a refrigerant and a compressor, wherein the refrigerant passes through the heat exchangers, the heat exchangers including a first heat exchanger in thermal contact with the liquid desiccant solution associated with said dehumidifier, a second heat exchanger in thermal contact with the desiccant solution associated with said regenerator and a third heat exchanger that is not in contact with said desiccant solutions. ### Claim 2 (depends on 1) A system according to claim 1 and including: at least one reservoir containing said liquid desiccant solution; a first conduit via which liquid desiccant solution is transferred from the at least one reservoir to the humidifier; and a second conduit via which desiccant solution is transferred from the at least one reservoir to the regenerator. ### Claim 3 (depends on 2) A system according to claim 2 wherein the first heat exchanger receives heat from the solution in the first conduit, and the second heat exchanger receives heat from the solution in the second conduit. ### Claim 4 (depends on 1) A system according to claim 1 wherein the regenerator comprises a regenerator chamber in which moisture is removed from the solution by contact with air that is brought into the chamber. ### Claim 5 (depends on 4) A system according to claim 4 wherein the compressor is cooled by said air prior to its entry into the regenerator chamber, such that the moisture removal ability of the air is increased. ### Claim 6 (depends on 1) A system according to claim 1 wherein the dehumidifier comprises a dehumidifying chamber into which said moist air is introduced and from which dried air is removed after dehumidification. ### Claim 7 (depends on 3) A system according to claim 3 wherein the third heat exchanger transfers heat from the refrigerant after the refrigerant leaves the second heat exchanger. ### Claim 8 (depends on 7) A system according to claim 7 wherein the regenerator comprises a regenerator chamber in which moisture is removed from the solution by contact with air that is brought into the chamber. ### Claim 9 (depends on 8) A system according to claim 8 wherein the third heat exchanger is cooled by said air prior to its entry into the regenerator chamber, such that the moisture removal ability of the air is increased. ### Claim 10 (depends on 1) A system according to claim 1 and including a control that controls the amount of heat transferred between the first and second heat exchangers. ### Claim 11 (depends on 2) A system according to claim 2 wherein the at least one reservoir comprises a first reservoir from which solution is transferred via the first conduit and a second reservoir from which solution is transferred via the second conduit, said first reservoir forming a portion of the dehumidifier and said second reservoir forming a portion of the regenerator. ### Claim 12 (depends on 11) A system according to claim 11 and including a conduit that connects the first and second reservoirs, such that the level of solution in them is substantially the same. ### Claim 13 (depends on 12) A system according to claim 12 and providing an additional limited amount of mixing between the two reservoirs. ### Claim 14 (depends on 13) A system according to claim 13 wherein the limited mixing results in a solution concentration differential between the first and second reservoirs. ### Claim 15 (depends on 11) A system according to claim 11 wherein a substantial temperature differential is maintained between the first and second reservoirs. ### Claim 16 (depends on 15) A system according to claim 15 wherein the first reservoir is maintained at a first temperature and the second temperature is maintained at a second temperature at least 5° C. higher than the first temperature. ### Claim 17 (depends on 15) A system according to claim 15 and including a conduit that connects the first and second reservoirs, such that the level of solution in them is substantially the same. ### Claim 18 (depends on 17) A system according to claim 17 wherein the conduit provides for only limited mixing between the two reservoirs such that said temperature differential is maintained. ### Claim 19 (depends on 18) A system according to claim 18 and including means for providing an additional limited amount of mixing between the two reservoirs. ### Claim 20 (depends on 19) A system according to claim 19 wherein the limited mixing results in a solution concentration differential between the solution in the fist and second reservoirs. ### Claim 21 (depends on 16) A system according to claim 16 wherein the temperature differential is at least 10° C. ### Claim 22 (depends on 21) A system according to claim 21 wherein the temperature differential is at least 15° C.