EP1304530A1 - Humidifier requiring no feed water - Google Patents

Humidifier requiring no feed water Download PDF

Info

Publication number
EP1304530A1
EP1304530A1 EP01948036A EP01948036A EP1304530A1 EP 1304530 A1 EP1304530 A1 EP 1304530A1 EP 01948036 A EP01948036 A EP 01948036A EP 01948036 A EP01948036 A EP 01948036A EP 1304530 A1 EP1304530 A1 EP 1304530A1
Authority
EP
European Patent Office
Prior art keywords
cooling
humidifying
air
passage
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01948036A
Other languages
German (de)
French (fr)
Other versions
EP1304530A4 (en
Inventor
Toshihiro Shiga-seisakusho Daikin Ind. Lt KIZAWA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1304530A1 publication Critical patent/EP1304530A1/en
Publication of EP1304530A4 publication Critical patent/EP1304530A4/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-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
    • F24F3/12—Air-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 characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—Air-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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements
    • F24F2006/065—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements using slowly rotating discs for evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1016—Rotary wheel combined with another type of cooling principle, e.g. compression cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F24F2203/1036—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1056—Rotary wheel comprising a reheater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1068—Rotary wheel comprising one rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1084—Rotary wheel comprising two flow rotor segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1088—Rotary wheel comprising three flow rotor segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1092—Rotary wheel comprising four flow rotor segments

Definitions

  • the present invention relates to a humidifier without water supply, which collects water in the air and humidifies, for example, the air fed to the inside of a room.
  • a disc-shape humidifying rotor 2 composed of an adsorbent such as silica gel and zeolite is rotated as shown by an arrow R by an unshown motor, so that each portion of the humidifying rotor 2 passes in sequence a moisture absorbing area A, a humidifying area H, and a heat recovering area T.
  • a moisture absorbing passage 3 runs across the moisture absorbing area A
  • a humidifying passage 4 runs across the humidifying area H
  • a heat recovering passage 5 runs across the heat recovering area T.
  • the humidifying rotor 2 performs humidification by absorbing moisture from the air that passes the moisture absorbing passage 3 in the moisture absorbing area A, and discharging moisture to high-temperature air in the humidifying passage 4, that is heated by a heater 6, in the humidifying area H.
  • the air passing the heat recovering passage 5 recovers heat in the heat recovering area T, so that each portion of the humidifying rotor 2 is cooled before reaching the moisture absorbing area A, which enables the humidifying rotor 2 to sufficiently adsorb moisture in the moisture absorbing area A and reduces a load on the heater 6.
  • the humidifier without water supply has an advantage of disusing water supply equipment because the humidifying rotor 2 adsorbs moisture from the air in the moisture absorbing passage 3 and discharging the moisture to the air in the humidifying passage 4.
  • the conventional humidifier without water supply absorbs moisture in the moisture absorbing area A after each portion of the humidifying rotor 2 is cooled in the heat recovering area T. Because the humidifying rotor 2 has considerably large heat capacity, the humidifying rotor 2 may go into the moisture absorbing area A before undergoing full cooling. This decreases relative humidity of the air in the vicinity of the surface of the humidifying rotor 2, and causes a problem that sufficient humidification is not provided in the low-temperature and low-humid winter season when a moisture content is discontented and humidification is most required.
  • a humidifier without water supply in the present invention comprises:
  • the humidifying rotor is sufficiently cooled by cooling air flowing in the cooling passage before it encounters the humidifying passage. Consequently, relative humidity of the air in the vicinity of the surface of the humidifying rotor becomes high, which enables sufficient adsorption of moisture from the air running in the moisture absorbing passage, thereby implementing sufficient humidification of the air in the humidifying passage.
  • the humidifier without water supply in one embodiment comprises a heat recovering passage which locates upstream of the heating means in the humidifying passage and runs through the humidifying rotor, wherein the cooling passage is disposed in between the heat recovering passage and the moisture absorbing passage.
  • the air flowing in the heat recovering passage recovers heat
  • the cooled humidifying rotor is further cooled by cooling air flowing in the cooling passage.
  • the humidifying rotor is cooled by the air flowing in the heat recovering passage, and then cooled by the cooling air flowing in the cooling passage, which enables effective cooling of the humidifying rotor.
  • heat is recovered from the humidifying rotor to the air in the heat recovering passage before the humidifying rotor is cooled by cooling air in the cooling passage, which enables effective heat recovery.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air running in the moisture absorbing passage, and thereby implements sufficient humidification of the air in the humidifying passage.
  • the humidifier without water supply in one embodiment comprises a passage for leading cooling air passed through an evaporator to the cooling passage.
  • the air cooled by the evaporator travels through the passage and the cooling passage to the humidifying rotor, and cools the humidifying rotor.
  • obtaining cooling air with use of an evaporator of an air conditioner enables cooling of the humidifying rotor without increased costs and energy.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing passage, and thereby implements sufficient, humidification of the air in the humidifying passage without increased costs and energy.
  • One embodiment comprises a humidifying rotor, each portion of which passes in sequence a moisture absorbing area, a humidifying area, and a cooling area.
  • the cooling area is disposed between the humidifying area and the moisture absorbing area. Consequently, each portion of the humidifying rotor heated in the humidifying area is sufficiently cooled by cooling air in the cooling area before each portion reaches the moisture absorbing area. Therefore, in each portion of the humidifying rotor, relative humidity of the air in the vicinity of the surface becomes high, which enables sufficient adsorption of moisture from the air in the moisture absorbing area, and implements sufficient humidification of the air in the humidifying area.
  • the heat recovering area is disposed between the humidifying area and the cooling area.
  • the humidifying rotor cooled through heat recovery in the heat recovering area is further cooled by cooling air flowing in the cooling area.
  • the humidifying rotor is cooled by the air flowing in the heat recovering area and then cooled by cooling air flowing in the cooling area, which enables effective cooling of the humidifying rotor.
  • heat is recovered from each portion of the humidifying rotor to the air in the heat recovering area before each portion of the humidifying rotor is cooled in the cooling area, which enables effective heat recovery.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying area.
  • the humidifier without water supply in one embodiment comprises a passage for leading cooling air passed through an evaporator to the cooling passage that runs through the cooling area.
  • the air cooled by the evaporator travels through the passage and the cooling passage to the cooling area of the humidifying rotor, and cools the humidifying rotor.
  • obtaining cooling air with use of an evaporator of an air conditioner enables cooling of the humidifying rotor without increased costs and energy.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air in the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.
  • the humidifier without water supply has a disc-shape humidifying rotor 12.
  • the humidifying rotor 12 is composed of an adsorbent such as silica gel, zeolite, and alumina formed, for example, in the shape of a honeycomb or a porous multiparticle.
  • the humidifying rotor 12 is rotated around a central axis in the direction of an arrow R by an unshown motor. As the humidifying rotor 12 is rotated, each portion thereof passes in sequence a moisture absorbing area A, a humidifying area H, a heat recovering area T, and a cooling area C.
  • the humidifying rotor 12 is housed in an unshown casing.
  • the inside of the casing is partitioned by unshown partition plates so as to form a moisture absorbing passage 3 running across the moisture absorbing area A, a humidifying passage 4 running across the humidifying area H, a heat recovering passage 5 running across the heat recovering area T, and a cooling passage 21 running across the cooling area C.
  • a section of the cooling passage 21 that encounters the humidifying rotor 12 is located between the heat recovering passage 5 and the moisture absorbing passage 3.
  • the humidifying passage 4 locates downstream of the heat recovering passage 5, and has a heater 6 as a heating means for further heating the air preheated in the heat recovering area T.
  • a humidifying side fan 14 is provided in a section of the humidifying passage 4 that is downstream from the humidifying rotor 12 for flowing the air as shown with an arrow to feed the air humidified with moisture taken in the humidifying area H to the inside of an unshown room.
  • a moisture absorbing side fan 24 is provided in a section of the moisture absorbing passage 3 that is downstream from the humidifying rotor 12 and in a section of the cooling passage 21 that is downstream from the humidifying rotor 12 for sucking and flowing outside air with a temperature of, for example, 0°C as shown with an arrow.
  • the outside air is sucked to the moisture absorbing passage 3, and when the outside air passes the moisture absorbing area A of the humidifying rotor 12, moisture thereof is adsorbed by the humidifying rotor 12.
  • the outside air sucked by the humidifying side fan 14 to the heat recovering passage 5 is first preheated by utilizing the heat recovered from the humidifying rotor 12 in the heat recovering area T, and then the outside air is heated by the heater 6 in the humidifying passage 4. In this way, the air is preheated in the heat recovering area T and then heated by the heater 6, which makes it possible to provide high-temperature heated air with small energy.
  • the heated air is humidified with moisture evaporated from the humidifying rotor 12, and becomes humidified air, which is fed through the humidifying side fan 14 to the inside of an unshown room.
  • the humidifying rotor 12 is in the state of extremely low temperature of -3 to -5°C, which enables sufficient collection of moisture even if the outside air is in low temperature.
  • a portion of the humidifying rotor 12 that sufficiently collects moisture then reaches the humidifying area H, where the portion fully discharges moisture to high-temperature heated air.
  • Thus-obtained humidified air is fed to the inside of a room through the humidifying side fan 14.
  • the heat recovering area T and the heat recovering passage 5 are provided, they may be omitted.
  • the area proportion of the moisture absorbing area A, the humidifying area H, the heat recovering, area T, and the cooling area C is not limited to the proportion shown in Figs. 1 and 2, and may take various values depending on the situations.
  • a heater is used as a heating means
  • a condenser may be used instead thereof.
  • a cooling passage for flowing cooling air that cools a portion of the humidifying rotor before the portion encounters the moisture absorbing passage.
  • the humidifying rotor is cooled by the air flowing in the heat recovering passage, and then cooled by the cooling air flowing in the cooling passage, which enables effective cooling of the humidifying rotor. Further, heat is recovered from the humidifying rotor to the air in the heat recovering passage before the humidifying rotor is cooled by cooling air in the cooling passage, which enables effective heat recovery.
  • the air cooled by the evaporator travels through the passage and the cooling passage to the humidifying rotor, and cools the humidifying rotor, so that cooling air may be obtained for cooling the humidifying rotor without increased costs and energy.
  • This enables sufficient adsorption of moisture from the air running through the moisture absorbing passage to the humidifying rotor, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.
  • the cooling area is disposed between the humidifying area and the moisture absorbing area. Consequently, each portion of the humidifying rotor heated in the humidifying area is sufficiently cooled by cooling air in the cooling area before each portion reaches the moisture absorbing area. This enables sufficient adsorption of moisture from the air in the moisture absorbing area to the humidifying rotor, and implements sufficient humidification of the air in the humidifying area.
  • the humidifying rotor cooled through heat recovery in the heat recovering area is further cooled by cooling air flowing in the cooling area, which implements effective cooling of the humidifying rotor. Further, heat is recovered from each portion of the humidifying rotor to the air in the heat recovering area before each portion of the humidifying rotor is cooled in the cooling area, which implements effective heat recovery.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying area.
  • the air cooled by the evaporator is led to the cooling area through the passage and the cooling passage for cooling the humidifying rotor, which makes it possible to obtain cooling air for cooling the humidifying rotor without increased costs and energy.
  • the humidifying rotor therefore, enables sufficient adsorption of moisture from the air in the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Humidification (AREA)

Abstract

There is provided a humidifier without water supply, which enables sufficient cooling of a humidifying rotor and implements sufficient humidification even in the low-temperature and low-humid winter season. Into a cooling passage (21) running through a cooling area C, there flows cooling air cooled by passing an outdoor heat exchanger (22) of an air conditioner, by which a humidifying rotor (12) is cooled to extremely low temperature in the cooling area C. Cooling air is obtained by taking heat of evaporation out of the outside air with the outdoor heat exchanger (22) of an air conditioner, which makes it .possible to obtain the cooling air without increased costs and energy. Since the humidifying rotor (12) cooled in the cooling area C is cooled with the air with extremely low temperature in the cooling area C, the humidifying rotor (12) can sufficiently collect moisture from the outside air even in the winter season when the outside air is in low temperature. A portion of the humidifying rotor (12) that sufficiently collected moisture discharges the moisture to high-temperature heated air in a humidifying area.

Description

TECHNICAL FIELD
The present invention relates to a humidifier without water supply, which collects water in the air and humidifies, for example, the air fed to the inside of a room.
BACKGROUND ART
As this kind of humidifier without water supply, there has been one that shown in Fig. 3. In the humidifier without water supply, a disc-shape humidifying rotor 2 composed of an adsorbent such as silica gel and zeolite is rotated as shown by an arrow R by an unshown motor, so that each portion of the humidifying rotor 2 passes in sequence a moisture absorbing area A, a humidifying area H, and a heat recovering area T. A moisture absorbing passage 3 runs across the moisture absorbing area A, a humidifying passage 4 runs across the humidifying area H, and a heat recovering passage 5 runs across the heat recovering area T.
The humidifying rotor 2 performs humidification by absorbing moisture from the air that passes the moisture absorbing passage 3 in the moisture absorbing area A, and discharging moisture to high-temperature air in the humidifying passage 4, that is heated by a heater 6, in the humidifying area H. The air passing the heat recovering passage 5 recovers heat in the heat recovering area T, so that each portion of the humidifying rotor 2 is cooled before reaching the moisture absorbing area A, which enables the humidifying rotor 2 to sufficiently adsorb moisture in the moisture absorbing area A and reduces a load on the heater 6.
The humidifier without water supply has an advantage of disusing water supply equipment because the humidifying rotor 2 adsorbs moisture from the air in the moisture absorbing passage 3 and discharging the moisture to the air in the humidifying passage 4.
As shown in Figs. 3 and 4, the conventional humidifier without water supply absorbs moisture in the moisture absorbing area A after each portion of the humidifying rotor 2 is cooled in the heat recovering area T. Because the humidifying rotor 2 has considerably large heat capacity, the humidifying rotor 2 may go into the moisture absorbing area A before undergoing full cooling. This decreases relative humidity of the air in the vicinity of the surface of the humidifying rotor 2, and causes a problem that sufficient humidification is not provided in the low-temperature and low-humid winter season when a moisture content is discontented and humidification is most required.
DISCLOSURE OF THE INVENTION
Accordingly, it is an object of the present invention to provide a humidifier without water supply, which enables sufficient cooling of a humidifying rotor and implements sufficient humidification even in the low-temperature and low-humid winter season.
In order to accomplish the above object, a humidifier without water supply in the present invention comprises:
  • a humidifying rotor; a moisture absorbing passage running through the humidifying rotor; a humidifying passage running through the humidifying rotor; and heating means for heating air in the humidifying passage, wherein the humidifying rotor absorbs moisture from air in the moisture absorbing passage while humidifying heated air in the humidifying passage, and further comprises:
  • a cooling passage for flowing cooling air for cooling a portion of the humidifying rotor before the portion encounters the moisture absorbing passage.
    • In the above structured humidifier without water supply, the humidifying rotor is sufficiently cooled by cooling air flowing in the cooling passage before it encounters the humidifying passage. Consequently, relative humidity of the air in the vicinity of the surface of the humidifying rotor becomes high, which enables sufficient adsorption of moisture from the air running in the moisture absorbing passage, thereby implementing sufficient humidification of the air in the humidifying passage.
    The humidifier without water supply in one embodiment comprises a heat recovering passage which locates upstream of the heating means in the humidifying passage and runs through the humidifying rotor, wherein
       the cooling passage is disposed in between the heat recovering passage and the moisture absorbing passage.
    In the above embodiment, the air flowing in the heat recovering passage recovers heat, and the cooled humidifying rotor is further cooled by cooling air flowing in the cooling passage. In this way, the humidifying rotor is cooled by the air flowing in the heat recovering passage, and then cooled by the cooling air flowing in the cooling passage, which enables effective cooling of the humidifying rotor. Further, heat is recovered from the humidifying rotor to the air in the heat recovering passage before the humidifying rotor is cooled by cooling air in the cooling passage, which enables effective heat recovery. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air running in the moisture absorbing passage, and thereby implements sufficient humidification of the air in the humidifying passage.
    The humidifier without water supply in one embodiment comprises a passage for leading cooling air passed through an evaporator to the cooling passage.
    According to the above embodiment, the air cooled by the evaporator travels through the passage and the cooling passage to the humidifying rotor, and cools the humidifying rotor. In this way, obtaining cooling air with use of an evaporator of an air conditioner enables cooling of the humidifying rotor without increased costs and energy. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing passage, and thereby implements sufficient, humidification of the air in the humidifying passage without increased costs and energy.
    One embodiment comprises a humidifying rotor, each portion of which passes in sequence a moisture absorbing area, a humidifying area, and a cooling area.
    According to the above embodiment, the cooling area is disposed between the humidifying area and the moisture absorbing area. Consequently, each portion of the humidifying rotor heated in the humidifying area is sufficiently cooled by cooling air in the cooling area before each portion reaches the moisture absorbing area. Therefore, in each portion of the humidifying rotor, relative humidity of the air in the vicinity of the surface becomes high, which enables sufficient adsorption of moisture from the air in the moisture absorbing area, and implements sufficient humidification of the air in the humidifying area.
    According to one embodiment, the heat recovering area is disposed between the humidifying area and the cooling area.
    According to the above embodiment, the humidifying rotor cooled through heat recovery in the heat recovering area is further cooled by cooling air flowing in the cooling area. In this way, the humidifying rotor is cooled by the air flowing in the heat recovering area and then cooled by cooling air flowing in the cooling area, which enables effective cooling of the humidifying rotor. Further, heat is recovered from each portion of the humidifying rotor to the air in the heat recovering area before each portion of the humidifying rotor is cooled in the cooling area, which enables effective heat recovery. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying area.
    The humidifier without water supply in one embodiment comprises a passage for leading cooling air passed through an evaporator to the cooling passage that runs through the cooling area.
    According to the above embodiment, the air cooled by the evaporator travels through the passage and the cooling passage to the cooling area of the humidifying rotor, and cools the humidifying rotor. In this way, obtaining cooling air with use of an evaporator of an air conditioner enables cooling of the humidifying rotor without increased costs and energy. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air in the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.
    BRIEF DESCRIPTION OF THE DRAWINGS
  • Fig. 1 is a schematic view showing a humidifier without water supply in an embodiment of the present invention;
  • Fig. 2 is a plan view showing a humidifying rotor in the embodiment;
  • Fig. 3 is a schematic view showing a conventional humidifier without water supply; and
  • Fig. 4 is a plan view showing a humidifying rotor of the conventional humidifier without water supply.
    • BEST MODE FOR CARRYING OUT THE INVENTION
    Hereinbelow, the embodiments of the present invention will be described in detail with accompanied drawings.
    As shown in Fig. 1, the humidifier without water supply has a disc-shape humidifying rotor 12. The humidifying rotor 12 is composed of an adsorbent such as silica gel, zeolite, and alumina formed, for example, in the shape of a honeycomb or a porous multiparticle. The humidifying rotor 12 is rotated around a central axis in the direction of an arrow R by an unshown motor. As the humidifying rotor 12 is rotated, each portion thereof passes in sequence a moisture absorbing area A, a humidifying area H, a heat recovering area T, and a cooling area C. The humidifying rotor 12 is housed in an unshown casing. The inside of the casing is partitioned by unshown partition plates so as to form a moisture absorbing passage 3 running across the moisture absorbing area A, a humidifying passage 4 running across the humidifying area H, a heat recovering passage 5 running across the heat recovering area T, and a cooling passage 21 running across the cooling area C. A section of the cooling passage 21 that encounters the humidifying rotor 12 is located between the heat recovering passage 5 and the moisture absorbing passage 3.
    The humidifying passage 4 locates downstream of the heat recovering passage 5, and has a heater 6 as a heating means for further heating the air preheated in the heat recovering area T.
    A humidifying side fan 14 is provided in a section of the humidifying passage 4 that is downstream from the humidifying rotor 12 for flowing the air as shown with an arrow to feed the air humidified with moisture taken in the humidifying area H to the inside of an unshown room.
    A moisture absorbing side fan 24 is provided in a section of the moisture absorbing passage 3 that is downstream from the humidifying rotor 12 and in a section of the cooling passage 21 that is downstream from the humidifying rotor 12 for sucking and flowing outside air with a temperature of, for example, 0°C as shown with an arrow. The outside air is sucked to the moisture absorbing passage 3, and when the outside air passes the moisture absorbing area A of the humidifying rotor 12, moisture thereof is adsorbed by the humidifying rotor 12.
    To a section of the cooling passage 21 that is upstream to the humidifying rotor 12, there is connected a passage 23 for leading cooling air with a temperature of, for example, -3 to -5°C cooled by passing an outdoor heat exchanger 22 as the evaporator. Therefore, the humidifying rotor 12 cooled by heat recovery in the heat recovering area T is further cooled in the cooling area C to be in extremely low temperature. Accordingly, even if the outside air is in low temperature of, for example, 0°C, the humidifying rotor 12 is cooled to be in extremely low temperature of, for example, -3 to -5°C. Therefore, even in the winter season when moisture adsorption is difficult, relative humidity of the air in the vicinity of the surface of the humidifying rotor 12 is high, and therefore sufficient moisture adsorption is implemented in the moisture absorbing area A.
    In the above structured humidifier without water supply, the outside air sucked by the humidifying side fan 14 to the heat recovering passage 5 is first preheated by utilizing the heat recovered from the humidifying rotor 12 in the heat recovering area T, and then the outside air is heated by the heater 6 in the humidifying passage 4. In this way, the air is preheated in the heat recovering area T and then heated by the heater 6, which makes it possible to provide high-temperature heated air with small energy. When passing the humidifying area H, the heated air is humidified with moisture evaporated from the humidifying rotor 12, and becomes humidified air, which is fed through the humidifying side fan 14 to the inside of an unshown room.
    Since the humidifying rotor 12 is rotated in the direction of the arrow R, a portion of the humidifying rotor 12 located in the heat recovering area T reaches the cooling area C. Into the cooling passage 21 running across the cooling area C, there flows from the passage 23 cooling air cooled to -3 to -5°C by passing through the outdoor heat exchanger (evaporator) 22 of an air conditioner. This makes the humidifying rotor 12 cooled to an extremely low temperature in the cooling area C. In this way, cooling air is obtained by heat of evaporation taken from the outside air by the outdoor heat exchanger 22 of an air conditioner. Therefore, cooling air is obtained without increased costs and energy. The cooling air which cooled the humidifying rotor 12 in the cooling area C is sucked and discharged outside by the moisture absorbing side fan 24.
    A portion of the humidifying rotor 12 cooled in the cooling area C then reaches the moisture absorbing area A. Into the moisture absorbing area A, outside air with a low temperature of approx. 0°C flows from the moisture absorbing passage 3. Since the humidifying rotor 12 is cooled in the cooling area C with the air in extremely low temperature of -3 to -5°C coming from the outdoor heat exchanger 22, relative humidity of the outside air in the vicinity of the surface of the humidifying rotor 12 becomes high, enabling sufficient collection of water from the outside air even in the winter season when the outside air is in low temperature and low humidity. Particularly, in an area A1 in the moisture absorbing area A that is close to the cooling area C, the humidifying rotor 12 is in the state of extremely low temperature of -3 to -5°C, which enables sufficient collection of moisture even if the outside air is in low temperature.
    A portion of the humidifying rotor 12 that sufficiently collects moisture then reaches the humidifying area H, where the portion fully discharges moisture to high-temperature heated air. Thus-obtained humidified air is fed to the inside of a room through the humidifying side fan 14.
    In the above embodiment, by taking heat of evaporation out of the outside air with the outdoor heat exchanger 22 of an air conditioner, there is obtained the cooling air with extremely low temperature, which cools the humidifying rotor 12 to an extremely low temperature. This enables the humidifying rotor 12 to sufficiently absorb moisture from the air running through the moisture absorbing area A, and to implement sufficient humidification of the air in the humidifying area H without increased costs and energy.
    In the above embodiment, although the heat recovering area T and the heat recovering passage 5 are provided, they may be omitted.
    The area proportion of the moisture absorbing area A, the humidifying area H, the heat recovering, area T, and the cooling area C is not limited to the proportion shown in Figs. 1 and 2, and may take various values depending on the situations.
    In the above embodiment, although a heater is used as a heating means, a condenser may be used instead thereof.
    As is clear from the above description, according to the present invention, there is provided a cooling passage for flowing cooling air that cools a portion of the humidifying rotor before the portion encounters the moisture absorbing passage. This enables sufficient cooling of the humidifying rotor before the humidifying rotor's encountering the moisture absorbing passage. Consequently, even in the winter season when temperature and humidity are low, relative humidity of the air in the vicinity of the surface of the humidifying rotor becomes high, thereby enabling sufficient adsorption of moisture from the outside air to the humidifying rotor, and implementing sufficient humidification of the air in the humidifying passage.
    In the humidifier without water supply according to one embodiment, the humidifying rotor is cooled by the air flowing in the heat recovering passage, and then cooled by the cooling air flowing in the cooling passage, which enables effective cooling of the humidifying rotor. Further, heat is recovered from the humidifying rotor to the air in the heat recovering passage before the humidifying rotor is cooled by cooling air in the cooling passage, which enables effective heat recovery.
    In the humidifier without water supply according to one embodiment, the air cooled by the evaporator travels through the passage and the cooling passage to the humidifying rotor, and cools the humidifying rotor, so that cooling air may be obtained for cooling the humidifying rotor without increased costs and energy. This enables sufficient adsorption of moisture from the air running through the moisture absorbing passage to the humidifying rotor, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.
    In the humidifier without water supply according to one embodiment, the cooling area is disposed between the humidifying area and the moisture absorbing area. Consequently, each portion of the humidifying rotor heated in the humidifying area is sufficiently cooled by cooling air in the cooling area before each portion reaches the moisture absorbing area. This enables sufficient adsorption of moisture from the air in the moisture absorbing area to the humidifying rotor, and implements sufficient humidification of the air in the humidifying area.
    In the humidifier without water supply according to one embodiment, the humidifying rotor cooled through heat recovery in the heat recovering area is further cooled by cooling air flowing in the cooling area, which implements effective cooling of the humidifying rotor. Further, heat is recovered from each portion of the humidifying rotor to the air in the heat recovering area before each portion of the humidifying rotor is cooled in the cooling area, which implements effective heat recovery. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air running through the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying area.
    In the humidifier without water supply according to one embodiment, the air cooled by the evaporator is led to the cooling area through the passage and the cooling passage for cooling the humidifying rotor, which makes it possible to obtain cooling air for cooling the humidifying rotor without increased costs and energy. The humidifying rotor, therefore, enables sufficient adsorption of moisture from the air in the moisture absorbing area, and thereby implements sufficient humidification of the air in the humidifying passage without increased costs and energy.

    Claims (6)

    1. A humidifier without water supply comprising:
      a humidifying rotor (12); a moisture absorbing passage (3) running through the humidifying rotor (12); a humidifying passage (4) running through the humidifying rotor (12); and heating means (6) for heating air in the humidifying passage (4), wherein the humidifying rotor (12) absorbs moisture from air in the moisture absorbing passage (3) while humidifying heated air in the humidifying passage (4), and further comprising:
      a cooling passage (21) for flowing cooling air for cooling a portion of the humidifying rotor (12) before the portion encounters the moisture absorbing passage (3).
    2. The humidifier without water supply as defined in Claim 1, further comprising a heat recovering passage (5) which locates upstream of the heating means (6) in the humidifying passage (4) and runs through the humidifying rotor (12), wherein
         the cooling passage (21) is disposed in between the heat recovering passage (5) and the moisture absorbing passage (3).
    3. The humidifier without water supply as defined in Claim 1 or 2, further comprising a passage (23) for leading cooling air passed through an evaporator (22) to the cooling passage (3).
    4. A humidifier without water supply, comprising a humidifying rotor (12), each portion of which passes in sequence a moisture absorbing area (A), a humidifying area (H), and a cooling area (C).
    5. The humidifier without water supply as defined in Claim 4, wherein the heat recovering area (T) is disposed between the humidifying area (H) and the cooling area (C).
    6. The humidifier without water supply as defined in Claim 4 or 5, further comprising a passage (23) for leading cooling air passed through an evaporator (22) to the cooling passage (21) that runs through the cooling area (C).
    EP01948036A 2000-07-25 2001-07-17 HUMIDIFIER NOT REQUIRING WATER SUPPLY Withdrawn EP1304530A4 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    JP2000223717 2000-07-25
    JP2000223717A JP2002039575A (en) 2000-07-25 2000-07-25 Non-water supply humidifier
    PCT/JP2001/006154 WO2002008672A1 (en) 2000-07-25 2001-07-17 Humidifier requiring no feed water

    Publications (2)

    Publication Number Publication Date
    EP1304530A1 true EP1304530A1 (en) 2003-04-23
    EP1304530A4 EP1304530A4 (en) 2006-05-17

    Family

    ID=18717772

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01948036A Withdrawn EP1304530A4 (en) 2000-07-25 2001-07-17 HUMIDIFIER NOT REQUIRING WATER SUPPLY

    Country Status (5)

    Country Link
    EP (1) EP1304530A4 (en)
    JP (1) JP2002039575A (en)
    KR (1) KR20020032617A (en)
    CN (1) CN1149358C (en)
    WO (1) WO2002008672A1 (en)

    Families Citing this family (14)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP3649236B2 (en) * 2003-10-09 2005-05-18 ダイキン工業株式会社 Air conditioner
    CN100430659C (en) * 2004-06-09 2008-11-05 浙江省普瑞科技有限公司 Manufacturing method for non-water humidifying reel of air-conditioner and special apparatus thereof
    US8847833B2 (en) 2009-12-29 2014-09-30 Pulse Finland Oy Loop resonator apparatus and methods for enhanced field control
    US9406998B2 (en) 2010-04-21 2016-08-02 Pulse Finland Oy Distributed multiband antenna and methods
    US9673507B2 (en) 2011-02-11 2017-06-06 Pulse Finland Oy Chassis-excited antenna apparatus and methods
    US8648752B2 (en) 2011-02-11 2014-02-11 Pulse Finland Oy Chassis-excited antenna apparatus and methods
    US9450291B2 (en) 2011-07-25 2016-09-20 Pulse Finland Oy Multiband slot loop antenna apparatus and methods
    CN104764094B (en) * 2015-03-26 2017-06-06 广东美的制冷设备有限公司 The control method of humidifying air conditioner and humidifying air conditioner
    CN111076313B (en) * 2018-10-22 2022-04-29 大金工业株式会社 Air treatment device
    CN111947246A (en) * 2020-07-20 2020-11-17 青岛海尔空调器有限总公司 device for humidity control
    CN111928353B (en) * 2020-07-20 2026-02-13 青岛海尔空调器有限总公司 Device for humidity control
    CN111928355B (en) * 2020-07-20 2026-02-10 青岛海尔空调器有限总公司 Device for humidity control
    CN111928356A (en) * 2020-07-20 2020-11-13 青岛海尔空调器有限总公司 Device for humidity control
    CN111928354B (en) * 2020-07-20 2026-02-10 青岛海尔空调器有限总公司 Device for humidity control

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP2673300B2 (en) * 1988-02-01 1997-11-05 株式会社西部技研 Low concentration gas sorption machine
    DE9316950U1 (en) * 1993-11-05 1994-01-05 Munters GmbH, 21035 Hamburg Device for the continuous dehumidification of moist air
    JPH10332174A (en) * 1997-05-30 1998-12-15 Mitsubishi Electric Corp Air processing equipment
    US6029462A (en) * 1997-09-09 2000-02-29 Denniston; James G. T. Desiccant air conditioning for a motorized vehicle
    JPH11128655A (en) * 1997-10-27 1999-05-18 Matsushita Electric Ind Co Ltd Adsorption element and humidifier using the same
    DE69920994T2 (en) * 1998-02-25 2005-11-03 Sanyo Electric Co., Ltd., Moriguchi Humidity control apparatus
    JP2001201106A (en) * 2000-01-18 2001-07-27 Matsushita Electric Ind Co Ltd Air conditioner

    Also Published As

    Publication number Publication date
    WO2002008672A1 (en) 2002-01-31
    JP2002039575A (en) 2002-02-06
    KR20020032617A (en) 2002-05-03
    EP1304530A4 (en) 2006-05-17
    CN1392942A (en) 2003-01-22
    CN1149358C (en) 2004-05-12

    Similar Documents

    Publication Publication Date Title
    AU2006253864B2 (en) System and method for managing water content in a fluid
    AU2019204433B2 (en) An autonomous apparatus for extracting water from the air
    CN101317040B (en) Dew point cooling equipment
    CN114935180B (en) Air conditioning system, method of cooling and dehumidifying, and method of heating and humidifying
    US4700550A (en) Enthalpic heat pump desiccant air conditioning system
    US4793143A (en) Enthalpic heat pump desiccant air conditioning system
    CN100510558C (en) Single runner two stage dehumidify air-conditioner driven by solar
    CZ2020126A3 (en) Compact device for obtaining water from the air
    EP1304530A1 (en) Humidifier requiring no feed water
    US20100058778A1 (en) Thermoelectrically powered indirect evaporative cooling system with desiccant dehumidification
    JP2014087797A (en) Dehumidifier achieving low power consumption
    US10274210B2 (en) Heat pump humidifier and dehumidifier system and method
    CN201368544Y (en) Moisture removal heating segment for combined type air-conditioning unit
    JP2010091168A (en) Humidifier, dehumidifier and air cleaner
    US20210148587A1 (en) Dehumidifiier cascade system and process
    JP2007255780A (en) Desiccant air conditioning system using solar heat.
    CN107869808B (en) Heat recovery type membrane solution air conditioner
    CN115585510A (en) A composite dehumidifier
    CN222012156U (en) A cabinet type rotary dehumidifier for swimming pools
    CN223663441U (en) A new type of refrigeration and dehumidification device
    CN119389460B (en) Double-air-duct regenerative dehumidification device based on thermoelectric refrigeration
    CN222504134U (en) Condensation heat recovery type low-temperature regeneration rotary dehumidifier unit
    CN220489287U (en) Two-way heat recovery new trend dehumidifier
    CN218972927U (en) Constant-temperature refrigerating system for air conditioning system
    JPS62182534A (en) Warm-air heater having dehumidifying function

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20020422

    AK Designated contracting states

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    A4 Supplementary search report drawn up and despatched

    Effective date: 20060330

    RIC1 Information provided on ipc code assigned before grant

    Ipc: F24F 3/14 20060101AFI20060324BHEP

    Ipc: F24F 3/147 20060101ALI20060324BHEP

    Ipc: F24F 3/153 20060101ALI20060324BHEP

    Ipc: F28D 19/04 20060101ALI20060324BHEP

    17Q First examination report despatched

    Effective date: 20060816

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

    18D Application deemed to be withdrawn

    Effective date: 20101231