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1. WO1999032841 - LIQUID DESICCANT DEHUMIDIFIER AND AIR CONDITIONER

Publication Number WO/1999/032841
Publication Date 01.07.1999
International Application No. PCT/US1998/025189
International Filing Date 25.11.1998
Chapter 2 Demand Filed 28.05.1999
IPC
B01D 53/26 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
26Drying gases or vapours
F24F 3/14 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
3Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
12characterised by the treatment of the air otherwise than by heating and cooling
14by humidification; by dehumidification
F24F 5/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
5Air-conditioning systems or apparatus not covered by group F24F1/ or F24F3/119
F28B 1/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
BSTEAM OR VAPOUR CONDENSERS
1Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser
02using water or other liquid as the cooling medium
F28D 7/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
10the conduits being arranged one within the other, e.g. concentrically
F28F 1/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
08Tubular elements crimped or corrugated in longitudinal section
CPC
B01D 53/263
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
26Drying gases or vapours
263by absorption
F24F 2003/144
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
3Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
12characterised by the treatment of the air otherwise than by heating and cooling
14by humidification; by dehumidification
144by dehumidification only
F24F 3/1411
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
3Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
12characterised by the treatment of the air otherwise than by heating and cooling
14by humidification; by dehumidification
1411by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
F24F 3/1417
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
3Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
12characterised by the treatment of the air otherwise than by heating and cooling
14by humidification; by dehumidification
1411by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
1417with liquid hygroscopic desiccants
F24F 5/0014
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
5Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00 ; , e.g. using solar heat or combined with household units such as an oven or water heater
0007cooling apparatus specially adapted for use in air-conditioning
0014using absorption or desorption
F25D 17/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
17Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
04for circulating air, e.g. by convection
06by forced circulation
Applicants
  • FEDDERS CORPORATION [US]/[US] (AllExceptUS)
  • POTNIS, Shailesh, V. [IN]/[US] (UsOnly)
  • GURLEY, Kevin [US]/[US] (UsOnly)
  • MCKITTRICK, Phillip, T., Sr. [US]/[US] (UsOnly)
  • BAUMANN, Robert [US]/[US] (UsOnly)
  • RAO, Srikant, Ram [US]/[US] (UsOnly)
  • LAURENT, Robert, L., Jr. [US]/[US] (UsOnly)
Inventors
  • POTNIS, Shailesh, V.
  • GURLEY, Kevin
  • MCKITTRICK, Phillip, T., Sr.
  • BAUMANN, Robert
  • RAO, Srikant, Ram
  • LAURENT, Robert, L., Jr.
Agents
  • MONKA, Gary, H.
Priority Data
08/984,74104.12.1997US
09/131,28707.08.1998US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LIQUID DESICCANT DEHUMIDIFIER AND AIR CONDITIONER
(FR) DESHUMIDIFICATEUR ET CLIMATISEUR A DESHYDRATANT LIQUIDE
Abstract
(EN) The present invention provides a liquid desiccant dehumidifier (200) and a liquid desiccant air conditioner (10) including an absorption air conditioner and a liquid desiccant dehumidifier. The dehumidifier includes a liquid desiccant absorber (12) for absorbing moisture contained in ambient air entering the dehumidifier and passing through the desiccant absorber. A boiler (34) is provided for boiling partially preheated dilute liquid desiccant to evaporate moisture to reconstitute the liquid desiccant into concentrated liquid desiccant. A first heat exchanger (58) fluidly communicates with the desiccant absorber and a second heat exchanger (66). The first heat exchanger is operable to transfer heat from the concentrated liquid desiccant to the dilute liquid desiccant directed to the first heat exchanger (58) from the desiccant absorber (12) to raise the temperature of the dilute liquid desiccant to a first temperature. A condenser (86) fluidly communicates with the boiler (34) to receive steam generated by boiling the liquid desiccant in the boiler, and with the first heat exchanger to receive partially heated dilute liquid desiccant from the first heat exchanger at the first temperature. A second heat exchanger (66) fluidly communicates with the condenser, the boiler and the first heat exchanger (58).
(FR) L'invention se rapporte à un déshumidificateur / climatiseur à déshydratant liquide qui comprend un climatiseur fonctionnant par absorption et un déshumidificateur à déshydratant liquide. Le déshumidificateur comprend un absorbeur à déshydratant liquide servant à absorber l'humidité contenue dans l'air environnant qui pénètre dans le déshumidificateur et passe par l'absorbeur à déshydratant liquide. Un bouilleur sert à faire bouillir un déshydratant liquide dilué partiellement préchauffé afin d'en évacuer l'humidité et faire retourner le déshydratant liquide à l'état concentré. Dans un mode de réalisation préféré, un premier échangeur de chaleur est en communication fluidique avec l'absorbeur de déshydratant et avec un deuxième échangeur de chaleur. Le premier échangeur de chaleur fonctionne de manière à transmettre la chaleur depuis le déshydratant liquide concentré vers le déshydratant liquide dilué, dirigé vers le premier échangeur de chaleur depuis l'absorbeur de déshydratant afin d'augmenter la température du déshydratant liquide dilué jusqu'à une première valeur. Un condenseur est en communication par fluides avec le bouilleur afin de recevoir la vapeur générée par la mise en ébullition du déshydratant liquide à l'intérieur du bouilleur, ainsi qu'avec le premier échangeur de chaleur pour recevoir du premier échangeur de chaleur le déshydratant liquide dilué partiellement préchauffé jusqu'à une première température. Le condenseur sert à chauffer sensiblement le déshydratant liquide dilué jusqu'à une deuxième température en récupérant la chaleur latente de condensation à mesure que la vapeur provenant du bouilleur se condense. Le deuxième échangeur de chaleur est en communication par fluides avec le condenseur, le bouilleur et le premier échangeur de chaleur. Le deuxième échangeur de chaleur communique par fluides avec le condenseur, le bouilleur et le premier échangeur de chaleur. Le deuxième échangeur de chaleur fonctionne de manière à transmettre la chaleur depuis le déshydratant liquide concentré, dirigé vers le deuxième échangeur de chaleur depuis le bouilleur, au déshydratant liquide dilué, dirigé vers le deuxième échangeur de chaleur depuis le condenseur à une deuxième température, et ce pour porter la température du déshydratant liquide dilué à une troisième valeur. Le déshydratant liquide dilué, qui a une troisième température, est dirigé vers le bouilleur, le déshydratant liquide concentré qui provient du deuxième échangeur de chaleur étant envoyé au premier échangeur de chaleur. Le deuxième échangeur de chaleur est disposé par rapport au bouilleur de manière à récupérer du bouilleur la chaleur perdue. Une pompe sert à alimenter l'absorbeur en déshydratant liquide concentré. Une fraction de la vapeur provenant du bouilleur est utilisée pour régénérer le réfrigérant dans le climatiseur à absorption d'air.
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