# US 8,696,805 B2 · Heat exchanger for dehumidifier using liquid desiccant and dehumidifier using liquid desiccant having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,696,805 B2 - Document ID: US8696805B2 - Status: Granted - Kind: B2 - Application number: 12/880,517 - Filed: 2010-09-13 - Published: 2011-03-31 - Granted: 2014-04-15 - Earliest claimed: 2009-09-30 - Assignees: Korea Institute of Science and Technology - Applicants: Young Soo Chang; Dae-Young Lee - Inventors: Young Soo Chang; Dae-Young Lee - Web page: https://patentgrep.com/patent/US8696805B2 ## CPC - F28D 1/05383: {with multiple rows of conduits or with multi-channel conduits (F28D1/05391 takes precedence)} - B01D 53/263: {by absorption} - F24F 3/1417: {with liquid hygroscopic desiccants} - F24F 3/147: with both heat and humidity transfer between supplied and exhausted air - F28F 1/126: {consisting of zig-zag shaped fins (F28F1/105 takes precedence)} - F28F 17/005: {Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence)} - B01D 2259/65: Employing advanced heat integration, e.g. Pinch technology - F24F 2003/1435: {comprising semi-permeable membrane} - F24F 2003/144: {by dehumidification only} - F28D 2021/0038: {for drying or dehumidifying gases or vapours} - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - 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) - 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) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) ## Abstract Disclosed are a heat exchanger for a dehumidifier using a liquid desiccant and a dehumidifier using a liquid desiccant having the same. The heat exchanger for a dehumidifier using a liquid desiccant, comprises: a plurality of plate-type heat exchanger bodies to which a heat transfer medium flows through flow paths formed therein; and a plurality of plates extending between the respective heat exchanger bodies, and inclined with respect to the surfaces of the heat exchanger bodies. ## Claims ### Claim 1 A heat exchanger for a dehumidifier using a liquid desiccant, the heat exchanger comprising: a plurality of plate-shaped heat exchanger bodies to which a heat transfer medium flows through flow paths formed therein; a plurality of plates extending between the respective heat exchanger bodies, and inclined with respect to surfaces of the heat exchanger bodies; an upper header supplying the liquid desiccant to the plurality of plates; a lower header collecting the liquid desiccant from the plurality of plates; and a blow fan supplying air to the plurality of plates; wherein each of the plates is provided with a plurality of through holes for passing a fluid flowing along the surface of the plate to a lower side of the plate, wherein the plurality of plates provide surfaces, which the desiccant and blown air contact each other, and wherein each of the plates is formed of a polyester (PET) non-woven fabric. ### Claim 2 (depends on 1) The heat exchanger of claim 1, wherein each of the plates is arranged in the form of a zigzag when viewed from a side surface of the heat exchanger body. ### Claim 3 (depends on 1) The heat exchanger of claim 1, wherein the heat exchanger body is surface-treated for enhanced wet property. ### Claim 4 (depends on 1) The heat exchanger of claim 1, wherein each of the plates are hydrophilic surface-coated. ### Claim 5 (depends on 1) The heat exchanger of claim 1, wherein at least one of the thorough holes are arranged away from the both edges of the plates. ### Claim 6 (depends on 5) The heat exchanger of claim 5, wherein some of the through holes are formed at contact points between the plates and heat exchanger body. ### Claim 7 A heat exchanger for a dehumidifier using a liquid desiccant, the heat exchanger comprising: a plurality of plate-shaped heat exchanger bodies to which a heat transfer medium flows through flow paths formed therein; a folded plate arranged between the heat exchanger bodies, and having a plurality of inclined surfaces arranged in a zigzag form an upper header supplying a liquid desiccant to the folded plate; a lower header collecting the liquid desiccant from the folded plate; and a blow fan supplying air to the folded plate; wherein each of the inclined surfaces is provided with a plurality of through holes for transferring a liquid desiccant flowing on the inclined surface to a lower side, wherein the folded plate provides surfaces on which the desiccant and blown air contact each other, wherein the plate-shaped heat exchanger body is provided with one or more channels configured to collect part of the liquid desiccant flowing down along the inclined surface, and wherein the folded plate is formed of a polyester (PET) non-woven fabric. ### Claim 8 (depends on 7) The heat exchanger of claim 7, wherein the through holes are arranged away from both edge of the folded plate. ### Claim 9 (depends on 7) The heat exchanger of claim 7, wherein the channel is arranged so as to be extending to upper and lower sides of both ends of the folded plate. ### Claim 10 (depends on 9) The heat exchanger of claim 9, wherein the channel is arranged in parallel to each other. ### Claim 11 (depends on 7) The heat exchanger of claim 7, wherein the channel is configured to have a circular or polygonal sectional surface.