WO2005036063A1 - 空気調和装置 - Google Patents
空気調和装置 Download PDFInfo
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- WO2005036063A1 WO2005036063A1 PCT/JP2004/014943 JP2004014943W WO2005036063A1 WO 2005036063 A1 WO2005036063 A1 WO 2005036063A1 JP 2004014943 W JP2004014943 W JP 2004014943W WO 2005036063 A1 WO2005036063 A1 WO 2005036063A1
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- WIPO (PCT)
- Prior art keywords
- air
- heat exchanger
- adsorption
- heat exchange
- room
- Prior art date
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/26—Drying gases or vapours
-
- 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
-
- 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
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- 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
- F24F3/1429—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 alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02343—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during dehumidification
Definitions
- the present invention relates to an air conditioner, and more particularly to an air conditioner capable of performing sensible heat treatment and latent heat treatment of room air separately.
- an air conditioner capable of separately performing sensible heat treatment and latent heat treatment of room air
- Some air conditioning systems perform sensible heat treatment of air mainly using a vapor compression refrigeration cycle, and perform latent heat treatment of air using an adsorbent that adsorbs moisture in the air and can be desorbed (for example, And JP-A-09-318126).
- This air conditioning system includes an air conditioner that circulates air indoors to perform sensible heat treatment, and a desiccant outside air conditioner that regulates the humidity of outdoor air and supplies it indoors to perform latent heat treatment. .
- the desiccant external conditioner requires a heating means for regenerating the adsorbent, and the system of the above publication uses a heat pump device as the heating means.
- the system of the above publication uses a heat pump device as the heating means.
- COP coefficient of performance
- the present invention has been made in view of such problems, and an object of the present invention is to increase the size of an air conditioner in which sensible heat treatment and latent heat treatment of air can be performed separately. Prevention and operation at high COP.
- the present invention relates to a plurality of heat exchangers that exchange heat between a heat medium such as a refrigerant and cold and hot water and air.
- the first invention includes a heat medium circuit (20, 40) through which a heat medium flows, and the heat medium and air exchange heat in the heat medium circuit (20, 40).
- An air conditioner with multiple heat exchangers (11, 12, 13, 14) is assumed.
- the air conditioner is constituted by adsorption heat exchange (13, 14) having at least one heat exchange ⁇ (13,14) force surface carrying an adsorbent.
- At least one of the plurality of heat exchangers (11, 12, 13, 14) performs latent heat treatment of indoor air in at least one adsorption heat exchanger (13, 14), and performs other latent heat treatment.
- Sensible heat treatment can be performed in the heat exchangers (11, 12). If the adsorption heat exchange (13, 14) power is the evaporator of the refrigerant circuit (20) or the cooler of the chilled / hot water circuit (40), it absorbs the moisture in the air while cooling the adsorbent.
- the refrigerant circuit (20) or a heater in the cold / hot water circuit (40) it can dehumidify the air and humidify the air by releasing moisture into the air while heating the adsorbent it can. When the air is humidified, the adsorbent is regenerated. According to the present invention, since a device exclusively for regeneration of the adsorbent is not required in addition to the heat medium circuit (20, 40), efficient operation is possible.
- a second invention is the air conditioner of the first invention, wherein the heat medium circuit (20, 40) 1S at least two air heat exchangers (11, 12) for mainly performing sensible heat treatment of air; It mainly includes one adsorption heat exchange (13) for performing latent heat treatment of air.
- the latent heat treatment of the indoor air is performed by the adsorption heat exchanger (13), and the sensible heat treatment of the indoor air can be performed by at least one air heat exchange (ll).
- the adsorption heat exchanger (13) alternately adsorbs moisture in the indoor air with the adsorbent and regenerates the adsorbent, and the air heat exchangers (11, 12) cool or cool the indoor air. Heating is performed continuously. That is, in the present invention, it is possible to intermittently perform dehumidification during cooling or intermittently perform humidification during heating.
- a third invention is the air conditioner according to the first invention, wherein the heat medium circuit (20, 40) 1S is an air heat exchanger (11) that mainly performs sensible heat treatment of air; It has at least two adsorption heat exchanges (13, 14) for performing latent heat treatment.
- one of the two adsorption heat exchangers (13, 14) is used as an evaporator (or a cooler), and the other is used as a condenser (or a heater).
- Heat exchange (13,14) to become a condenser) and adsorption heat exchange (13,14) to become a condenser (or a heater) are alternately switched to continuously dehumidify and humidify indoor air.
- the adsorption heat exchangers (13, 14) mainly perform latent heat treatment of room air, but also perform sensible heat treatment.
- the amount of sensible heat treatment of air increases as the amount of adsorption reaches a saturated state when adsorbing water
- the amount of sensible heat treatment of air increases as the amount of water decreases during regeneration.
- a fourth invention is the air conditioner of the first invention, wherein the heat medium circuit (20, 40) has at least two air heat exchangers (11, 12) for mainly performing sensible heat treatment of air; It has at least two adsorption heat exchanges (13, 14) that mainly perform latent heat treatment of air.
- one of the two adsorption heat exchangers (13, 14) is used as an evaporator (or a cooler), and the other is used as a condenser (or a heater).
- Heat exchange (13,14) to become a condenser) and adsorption heat exchange (13,14) to become a condenser (or a heater) are alternately switched to continuously dehumidify and humidify indoor air. Can be done.
- dehumidification can be performed continuously during cooling using both the air heat exchange (l 1, 12) for sensible heat treatment and the adsorption heat exchanger (13, 14) for latent heat treatment. It is possible, and humidification can be performed continuously during heating.
- a fifth invention is the air conditioner according to the first invention, wherein the heat medium circuit (20) is configured by a refrigerant circuit (20) that circulates a refrigerant to perform a vapor compression refrigeration cycle. It is.
- the adsorption heat exchangers (13, 14) are replaced by the evaporators or condensers of the refrigerant circuit (20), so that moisture can be adsorbed or regenerated, and air heat exchange can be performed.
- ⁇ (11,12) as the condenser or evaporator of the refrigerant circuit (20)
- the adsorbent can be regenerated only by using at least one of the plurality of heat exchanges ai, 12, 13, 14) of the refrigerant circuit (20) as the adsorption heat exchanger (13, 14), so that the adsorbent can be regenerated. No special equipment is required, and efficient operation is possible.
- a sixth invention is the air conditioner of the first invention, wherein the heat medium circuit (40) is configured by a cold / hot water circuit (40) through which cold / hot water flows.
- the adsorption heat exchangers (13, 14) can be used as heaters or coolers in the cold / hot water circuit (40) to adsorb or regenerate moisture, and can provide air heat.
- the heating or cooling of the air can be performed by using the interchange (ll, 12) as a heater or a cooler in the cold / hot water circuit (40).
- at least one of the multiple heat exchanges (11, 12, 13, 14) of the cold / hot water circuit (40) is used as the adsorption heat exchanger (13, 14), and the adsorbent is exclusively used for regeneration. Efficient operation is possible because no equipment is required.
- a seventh invention is the air conditioner of the first invention, wherein the refrigerant circuit (20) for performing a vapor compression refrigeration cycle by circulating a refrigerant through a heat medium circuit (20, 40) comprises: It consists of a flowing cold and hot water circuit (40).
- the adsorption heat exchanger (13, 14) is used as a condenser or an evaporator of the refrigerant circuit (20) or a heater or a cooler of the chilled / hot water circuit (40), so that moisture is removed.
- Adsorption or regeneration can be performed, and air heat exchange ⁇ (11, 12) should be used as a condenser or evaporator in the refrigerant circuit (20) or a heater or cooler in the cold / hot water circuit (40). To heat or cool the air.
- At least one of the plurality of heat exchangers (11, 12, 13, 14) of the refrigerant circuit (20) and the chilled / hot water circuit (40) is used as the adsorption heat exchanger (13, 14), and the adsorption is performed. Since a device exclusively for regenerating the agent is not required, the operation can be performed with high efficiency.
- An eighth invention is the air conditioner of the first invention, wherein the air flowing through the adsorption heat exchanger (13, 14) is cooled while cooling the adsorbent with the adsorption heat exchanger (13, 14).
- a moisture absorption operation in which water is adsorbed by an adsorbent, and water is released into the air flowing through the adsorption heat exchanger (13, 14) while heating the adsorbent in the adsorption heat exchanger (13, 14) to remove the adsorbent.
- the moisture of the air flowing through the adsorption heat exchangers (13, 14) is reduced while cooling the adsorbent by the adsorption heat exchangers (13, 14). Is adsorbed.
- the adsorbent is regenerated by releasing moisture into the air flowing through the adsorption heat exchanger (13, 14) while heating the adsorbent with the adsorption heat exchanger (13, 14). You. And control The device (15) alternately switches between the moisture absorption operation and the moisture release operation.
- a ninth invention is directed to the air conditioner according to the eighth invention, wherein the control device (15) includes a switching interval setting unit that sets a time interval for switching between the moisture absorbing operation and the dehumidifying operation according to the latent heat load.
- the switching interval setting section (16) reduces the set value of the time interval for switching between the moisture absorbing operation and the dehumidifying operation as the latent heat load increases. It is configured as follows.
- the amount of water adsorbed and released by the adsorbent gradually decreases as the time elapses immediately after the start, so that when the indoor latent heat load is large.
- An eleventh invention is directed to the air conditioner according to the first invention, further comprising a heat exchange element (50) for exchanging heat between the first air and the second air, wherein the first air and the second air are provided. At least one of them is the air for adsorption or the air for regeneration before passing through the adsorption heat exchanger (13, 14).
- the air can be dehumidified by adsorbing moisture in the air while cooling the adsorbent, while releasing moisture into the air while heating the adsorbent (adsorbent (Reproduction) can humidify the air.
- the adsorption air or regeneration air passing through the adsorption heat exchange (13, 14) has passed through the heat exchange element (50) in advance. Therefore, in the present invention, after the adsorption air is cooled or the regeneration air is heated by the heat exchange element (50), the adsorption air or the regeneration air is passed through the adsorption heat exchanger (13, 14). be able to. As a result, dehumidification or humidification of air in adsorption heat exchange (13, 14) can be performed efficiently.
- a latent heat treatment element (60) for performing latent heat treatment of air is provided in a flow passage of adsorption air or regeneration air passing through an adsorption heat exchanger (13, 14). Things.
- moisture in the air is adsorbed while cooling the adsorbent, and the air can be supplied into the room to reduce the humidity of the room.
- water The room can be humidified by releasing the air (regenerating the adsorbent) and supplying this air to the room.
- the adsorption air or the regeneration air passing through the adsorption heat exchangers (13, 14) also passes through the latent heat processing element (60). Therefore, according to the present invention, the dehumidification of the adsorption air in the latent heat treatment element (60) or the humidification of the regeneration air and the dehumidification of the adsorption air or the regeneration air in the adsorption heat exchanger (13, 14) are performed. Humidification can be performed.
- At least one of the heat exchangers (13, 14) of the plurality of heat exchanges (11, 12, 13, 14) of the heat medium circuit (20, 40) is subjected to adsorption heat exchange.
- latent heat treatment of indoor air can be performed by the adsorption heat exchangers (13, 14) and sensible heat treatment can be performed by other heat exchangers (11, 12).
- the amount of latent heat treatment / the amount of sensible heat treatment can be freely controlled.
- the adsorbent can be regenerated together with the latent heat and sensible heat treatment of the indoor air simply by driving only the heat medium circuit (20, 40), a heating means exclusively for regenerating the adsorbent becomes unnecessary. , It will be possible to operate with excellent COP.
- the air conditioner can be constituted only by the heat medium circuit (20, 40), the device can be constituted compact.
- the second invention by using two air heat exchanges (11, 12) and one adsorption heat exchange (13), dehumidification is performed intermittently at the time of cooling or at the time of heating. It is possible to humidify intermittently. Further, in the present invention, since only three heat exchanges (11, 12, 13) are required, the configuration of the apparatus can be simplified.
- the third invention by using one air heat exchange (11) and two adsorption heat exchanges (13, 14), cooling and dehumidification are continuously performed, and heating and cooling are performed. Humidification can be performed continuously. Also, in the present invention, since only three heat exchanges (11, 13, 14) are required, the device configuration can be simplified.
- the latent heat is obtained by using both the air heat exchanger (11, 12) that performs sensible heat treatment and the adsorption heat exchanger (13, 14) that performs latent heat treatment.
- the amount of treatment divided by the amount of sensible heat treatment can be freely controlled, and indoor comfort can be enhanced.
- the fifth aspect of the present invention by using a vapor compression refrigeration cycle as the heat medium circuit (20, 40) and using the refrigerant circuit (20), the latent heat load and the sensible heat load in the room are separated. It can be processed and efficient operation is possible. Further, since a dedicated heating means other than the refrigerant circuit (20) is not required to regenerate the adsorbent, it is possible to prevent the device configuration from becoming complicated
- the sixth aspect by using the cold / hot water circuit (40) in which cold / hot water circulates as the heat medium circuit (20, 40), the indoor latent heat load and the sensible heat load are separately processed. And efficient operation is possible.
- a dedicated heating means other than the cold / hot water circuit (40) is not required to regenerate the adsorbent, it is possible to prevent the apparatus configuration from becoming complicated.
- the refrigerant circuit (20) and the cold / hot water circuit are used as the heat medium circuit (20, 40).
- the latent heat load and the sensible heat load in the room can be separately treated, and efficient operation becomes possible.
- a dedicated heating means other than the refrigerant circuit (20) and the cold / hot water circuit (40) is not required to regenerate the adsorbent, it is possible to prevent the apparatus configuration from becoming complicated.
- the controller alternately performs the moisture absorbing operation and the moisture releasing operation.
- the interior of the room can be dehumidified by supplying air with moisture adsorbed by the adsorbent to the room during the moisture absorption operation, and the room can be humidified by supplying air regenerated from the adsorbent to the room during the dehumidification operation. can do.
- the switching interval setting section (16) for setting the time interval for switching between the moisture absorbing operation and the dehumidifying operation in accordance with the latent heat load is provided.
- the set value of the time interval for switching between the moisture absorption operation and the dehumidification operation is reduced, so when the indoor latent heat load is large, the switching frequency is increased to increase the amount of dehumidification or humidification.
- the amount of dehumidification or humidification can be reduced by reducing the switching frequency, and comfortable operation control according to the indoor latent heat load becomes possible.
- the heat exchange element (50) for exchanging heat between the first air and the second air is provided, and the adsorption air or the regeneration air is supplied to the heat exchange element (50).
- the cooling air can be cooled or the regeneration air can be heated by the heat exchange element (50).
- dehumidification or humidification of air in the adsorption heat exchangers (13, 14) can be performed efficiently, and a decrease in dehumidification ability or humidification ability can be prevented.
- the latent heat treatment element (60) for performing latent heat treatment of air is provided in the flow path of the adsorption air or the regeneration air passing through the adsorption heat exchanger (13, 14).
- the adsorption air or the regeneration air passing through the adsorption heat exchanger (13, 14) also passes through the latent heat treatment element (60). Therefore, since the air for adsorption or the air for regeneration can be treated by the latent heat treatment element (60) and the adsorption heat exchangers (13, 14), the dehumidifying ability or humidifying ability of air can be enhanced.
- FIG. 1 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 1.
- FIG. 2 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a heating and humidifying operation of the air-conditioning apparatus according to Embodiment 1.
- FIG. 3 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 2.
- FIG. 4 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a heating and humidifying operation of the air-conditioning apparatus according to Embodiment 2.
- FIG. 5 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 3.
- FIG. 6 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during a heating and humidifying operation of the air-conditioning apparatus according to Embodiment 3.
- FIG. 7 is an installation diagram of an air conditioner according to Embodiment 3.
- FIG. 8 is a configuration diagram of an indoor unit of the air-conditioning apparatus according to Embodiment 3.
- FIG. 9 is a conceptual diagram showing an installation state and an air flow during operation of the air-conditioning apparatus according to Embodiment 3.
- FIG. 10 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 4.
- FIG. 11 shows the first operation (A) and the first operation (A) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 4.
- FIG. 3 is a circuit configuration diagram showing two operations (B).
- FIG. 12 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 5.
- FIG. 13 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 5.
- FIG. 14 is a conceptual diagram showing an installation state and an air flow during operation of the air-conditioning apparatus according to Embodiment 5.
- FIG. 15 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 6.
- FIG. 16 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 6.
- FIG. 17 is a conceptual diagram showing an installation state and an air flow during operation of the air-conditioning apparatus according to Embodiment 6.
- FIG. 18 is a conceptual diagram showing an installation state of the air conditioner according to Embodiment 6 and a modification of the air flow during operation.
- FIG. 19 is a conceptual diagram showing an installation state and an air flow during operation of the air-conditioning apparatus according to Embodiment 7.
- FIG. 20 is a configuration diagram of an air-conditioning apparatus according to Embodiment 7.
- FIG. 21 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 8.
- FIG. 22 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 8.
- FIG. 23 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 9;
- FIG. 24 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 9;
- FIG. 25 is a circuit diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 10.
- FIG. 26 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 10.
- FIG. 27 is a circuit diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 11.
- FIG. 28 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 11.
- FIG. 29 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 12.
- FIG. 30 is a circuit diagram showing a first operation (A) and a second operation (B) during a heating and humidifying operation of the air-conditioning apparatus according to Embodiment 12.
- FIG. 31 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 13.
- FIG. 32 is a circuit diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 13.
- FIG. 33 is a conceptual diagram showing an installation state of an air conditioner according to Embodiment 13 and an air flow during operation.
- FIG. 34 is a configuration diagram of an air conditioner according to Embodiment 13.
- FIG. 35 is a conceptual diagram showing an installation state and an air flow during operation of an air conditioner according to a modification of Embodiment 13.
- FIG. 36 is a circuit diagram showing a first operation (A) and a second operation (B) during the cooling and dehumidifying operation of the air-conditioning apparatus according to Embodiment 14.
- FIG. 37 is a circuit configuration diagram showing a first operation (A) and a second operation (B) during the heating and humidifying operation of the air-conditioning apparatus according to Embodiment 14.
- Embodiments 114 and 14 relate to an exhaust fan type air conditioner in which the amount of air discharged from the room to the outside is larger than the amount of air supplied to the room.
- Embodiment 5 is an example in which the present invention is applied, and Embodiment 5 has a smaller amount of air supplied to the room than an amount of air discharged outside the room.
- Embodiments 6-13 which are examples applied to many air supply fan types, are examples applied to a ventilation fan type in which the amount of air discharged outside and the amount of air supplied to the room are balanced.
- the air conditioner (10) includes a refrigerant circuit (20) in which refrigerant circulates and performs a vapor compression refrigeration cycle.
- This air conditioner (10) has a plurality of heat exchanges (11, 12, 13) for exchanging heat between a refrigerant and air.
- the refrigerant circuit (20) includes two air heat exchangers (11, 12) that mainly perform sensible heat treatment of air and a plurality of air And one adsorption heat exchanger (13) for performing latent heat treatment.
- the adsorption heat exchange (13) is a heat exchange in which an adsorbent is carried on the surface, and the adsorbent can perform latent heat treatment of air.
- the air heat exchangers (11, 12) and the adsorption heat exchanger (13) are each constituted by a cross-fin type fin-and-tube heat exchanger.
- the fin includes a large number of fins formed in a rectangular plate shape, and heat transfer tubes penetrating the fins.
- the adsorbent is carried on the outer surfaces of the fins and the heat transfer tubes by dip molding (immersion molding).
- the adsorbent include zeolite, silica gel, activated carbon, organic polymer materials having hydrophilicity or water absorption, ion-exchange resin materials having carboxylic acid groups or sulfonic acid groups, and temperature-sensitive polymers. Functional polymer materials are included.
- the air heat exchangers (11, 12) and the adsorption heat exchangers (13) are not limited to cross-fin type fin-and-tube heat exchangers, but may be other types of heat exchangers, For example, a corrugated fin type heat exchanger may be used.
- the method of supporting the adsorbent on the fins of the adsorption heat exchanger (13) and the outer surface of the heat transfer tube is not limited to dip molding, and any method may be used as long as the performance of the adsorbent is not impaired.
- the refrigerant circuit (20) is configured as a closed circuit in which a compressor (21), an outdoor heat exchanger (22), an expansion mechanism (23), and an indoor heat exchanger (24) are connected.
- a four-way switching valve (25) is provided as a shelf structure for reversing the circulation direction of the refrigerant.
- the outdoor heat exchange (22) is composed of the first air heat exchanger (11)
- the indoor heat exchanger (24) is composed of the adsorption heat exchanger (13) and the second air heat exchanger (12). It is configured.
- the expansion mechanism (23) transfers the refrigerant to the first air heat exchanger.
- An expansion valve (31) as a first expansion mechanism capable of reducing the pressure between (11) and adsorption heat exchange (13), and a refrigerant for adsorption heat exchanger (13) and second air heat exchanger (12)
- a capillary tube (32a) as a second expansion mechanism (32) capable of reducing pressure between the valve and a solenoid valve (32b).
- the capillary tube (32a) and the solenoid valve (32b) are connected in parallel with each other. Note that an electric expansion valve may be used for the second expansion mechanism (32).
- the discharge side of the compressor (21) is connected to the first port (P1) of the four-way switching valve (25).
- the second port (P2) of the four-way switching valve (25) is connected to the first air heat exchange (11), and the first air heat exchange (11) has the first expansion mechanism (31) and adsorption heat exchange. Inversion (13), second expansion mechanism (32), and second air heat exchange (12) are connected in series in this order.
- the second air heat exchanger (12) is connected to the third port (P3) of the four-way switching valve (25), and the fourth port (P4) of the four-way switching valve (25) is connected to the suction side of the compressor. Have been.
- the four-way switching valve (25) is in a first state in which the first port (P1) communicates with the second port (P2), and the third port (P3) communicates with the fourth port (P4). (See the solid lines in Fig. 1 (A) and Fig. 1 (B)), the first port (P1) and the third port (P3) communicate, and the second port (P2) communicates with the fourth port (P4) 2 (see the solid lines in FIGS. 2A and 2B).
- the air conditioner (10) also includes a moisture absorption operation (13) in which the adsorbent is cooled by the adsorption heat exchanger (13) to adsorb the moisture of the air flowing through the adsorption heat exchange (13). (See Fig. 1 (A) and Fig. 2 (B)), and while adsorbent is heated by adsorption heat exchange (13), moisture is released into the air flowing through the adsorption heat exchange (13) to remove the adsorbent. It is configured so that the dehumidifying operation for regeneration (see Fig. 1 (B) and Fig. 2 (A)) is possible.
- the air conditioner (10) operates the four-way switching valve (25) and the expansion mechanism (23) and the shelves (not shown) so that the air conditioner (10) operates during the moisture absorption operation and the discharge operation.
- Switching between refrigerant flow and air flow in refrigerant circuit (20) between wet operation A controller (control device) (15) is provided.
- the controller (15) includes a switching timer (switching interval setting unit) (16) for setting a time interval for switching between the moisture absorbing operation and the dehumidifying operation according to the latent heat load in the room.
- the switching timer (16) is configured to decrease the set value of the time interval for switching between the moisture absorption operation and the moisture release operation as the latent heat load increases.
- the four-way switching valve (25) switches to the first state, and the first operation (moisture absorption operation) in FIG. 1 (A) and the second operation (humidification operation) in FIG. 1 (B) Are performed alternately. Then, during the first operation, the expansion valve (31) is throttled to a predetermined opening, and the solenoid valve (32b) is opened. In the second operation, the expansion valve (31) is opened and the solenoid valve (32b) is closed.
- the refrigerant discharged from the compressor (21) condenses in the first air heat exchange (11), expands in the expansion valve (31), and adsorbs heat. It is evaporated by the inversion (13) and the second air heat exchange (12) and is sucked into the compressor (21).
- the outdoor air (OA) passing through the first air heat exchange (11) is discharged outside as outdoor air (EA), and the adsorption heat exchange (13) and the second air heat exchanger (12) ) Returns to the room as supply air (SA).
- latent heat treatment of air is mainly performed in the adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the room air (RA) passing through the indoor heat exchanger (24) is dehumidified mainly by passing through the adsorption heat exchanger (13), and returns to the room.
- the part is cooled mainly by passing through the second air heat exchanger (12) and returns to the room.
- the refrigerant discharged from the compressor (21) is condensed by the first air heat exchanger (11) and the adsorption heat exchange (13), and then is cooled by the capillary tube (32a). ), Evaporates in the second air heat exchange (12), and is sucked into the compressor (21).
- the outdoor air (OA) that passed through the first air heat exchange (11) is discharged outside as outdoor air (EA)
- the indoor air (RA) that passed through the adsorption heat exchange (13) is Exhausted air (EA) is discharged outside the room and the second air heat exchange
- the room air (RA) that has passed through (12) returns to the room as supply air (SA).
- part of the room air (RA) passing through the indoor heat exchanger (24) is regenerated as an adsorbent when passing through the adsorption heat exchanger (13), and is discharged outside the room.
- the second air heat exchanger (12) only the sensible heat load in the room is mainly processed, and the latent heat load is hardly processed, but the state is slightly processed by the second air heat exchange (12).
- Indoor cooling is mainly performed.
- the indoor latent heat load can be intermittently processed while the indoor sensible heat load is continuously processed.
- the first operation and the second operation are switched by the controller (15) at shorter time intervals as the indoor latent heat load increases.
- the frequency of switching can be increased to increase the amount of dehumidification, thereby improving the indoor comfort.
- the frequency of switching can be reduced to reduce the amount of dehumidification and improve energy savings.
- the four-way switching valve (25) is switched to the second state, and the first operation (humidifying operation) in FIG. 2 (A) and the second operation (humidifying operation) in FIG. 2 (B) are performed. Are performed alternately.
- the expansion valve (31) is throttled to a predetermined opening, and the solenoid valve (32b) is opened.
- the solenoid valve (32b) is opened.
- the refrigerant discharged from the compressor (21) condenses in the second air heat exchanger (12) and the adsorption heat exchanger (13), and then expands. It expands in (31), evaporates in the first air heat exchanger (11), and is sucked into the compressor (21).
- the outdoor air (OA) passing through the first air heat exchange (11) is discharged outside as outdoor air (EA), and the adsorption heat exchange (13) and the second air heat exchanger (12) ) Returns to the room as supply air (SA).
- the indoor air (RA) passing through the indoor heat exchanger (24) is mainly humidified by regenerating the adsorbent when passing partly through the adsorption heat exchange (13), and is indoors.
- the remaining part is mainly heated by passing through the second air heat exchange (12) and returns to the room.
- the refrigerant discharged from the compressor (21) condenses in the second air heat exchanger (12), expands in the capillary tube (32a), and absorbs heat. It is evaporated by the alternation (13) and the first air heat alternation (11) and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the first air heat exchange (11) is discharged outside as outdoor air (EA), and adsorption heat exchange is performed.
- the indoor air (RA) that has passed through (13) is discharged outside as outdoor air (EA), and the room air (RA) that has passed through the second air heat exchanger (12) is indoors as supply air (SA). Return.
- part of the room air (RA) passing through the indoor heat exchanger (24) gives moisture to the adsorbent when passing through the adsorption heat exchanger (13), and is discharged outside the room.
- the remaining part is mainly heated by passing through the second air heat exchanger (12) and returns to the room. That is, during the second operation, only the indoor sensible heat load is processed, and the latent heat load is not processed. Therefore, the indoor heating is mainly performed.
- the indoor latent heat load can be intermittently processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the indoor latent heat load.
- an air conditioner (10) is configured by a refrigerant circuit (20) including two air heat exchanges (11, 12) and one adsorption heat exchange (13).
- the indoor unit since the indoor unit only needs to have an adsorption heat exchanger (13) and a second air heat exchanger (12), the equipment can be compared to a case where an air conditioner and desiccant external air conditioner are installed separately. Can be prevented from increasing in size, and costs can be reduced.
- the latent heat load is treated by using the adsorption heat exchanger (13) having the adsorbent supported on the surface, the heat of condensation of the refrigerant can be utilized during the regeneration of the adsorbent. Therefore, there is no need to provide a dedicated means for heating the adsorbent separately from the refrigerant circuit (20), and in this respect, it is possible to prevent an increase in the size of the apparatus and to avoid complication of the configuration.
- the first operation and the second operation are switched off.
- the frequency of switching between the first operation and the second operation is reduced. This makes it possible to drive with a good balance between indoor comfort and energy saving.
- the air conditioner according to Embodiment 2 is an example in which the configuration of the refrigerant circuit (20) is changed from Embodiment 1 as shown in FIGS.
- This refrigerant circuit (20) includes one air heat exchanger (11) and two adsorption heat exchangers (11) as a plurality of heat exchangers (11,13,14) that perform heat exchange between refrigerant and air. 13, 14).
- the adsorption heat exchangers (13, 14) mainly perform latent heat treatment of air, but also perform sensible heat treatment.
- the refrigerant circuit (20) includes a compressor (21), an outdoor heat exchange (22), an expansion mechanism (23), and an indoor heat exchange (24).
- a four-way switching valve (25, 26) is provided as a switching mechanism configured to form a connected closed circuit and to reverse the circulation direction of the refrigerant.
- the outdoor heat exchange (22) is composed of air heat exchange (11), and the indoor heat exchange (24) is connected to the first adsorption heat exchange (24) connected in series via an expander (23). 13) and the second adsorption heat exchange (14).
- the expansion mechanism (23) is configured by an expansion valve.
- the shelves (25, 26) are provided with a first four-way switching valve (first switching mechanism) (25) for reversing the overall refrigerant circulation direction in the refrigerant circuit (20), A second four-way switching valve (second cutout) (26) for reversing the flow direction of the refrigerant between the adsorption heat exchanger (13) and the second adsorption heat exchanger (14).
- the discharge side of the compressor (21) is connected to the first port (P1) of the first four-way switching valve (25).
- the second port (P2) of the first four-way switching valve (25) is connected to the air heat exchange (11), and this air heat exchange (11) is the first port of the second four-way switching valve (26).
- the second port (P2) of the second four-way switching valve (26) is connected to the first adsorption heat exchange (13), and the first adsorption heat exchanger (13) has the expansion valve (23) and the second adsorption Heat exchangers (14) are connected in series in order.
- the second adsorption heat exchange (14) is connected to the third port (P3) of the second four-way switching valve (26), and the fourth port (P4) of the second four-way switching valve (26) is Connected to third port (P3) of directional control valve (25).
- the fourth port (P4) of the first four-way switching valve (25) is connected to the suction side of the compressor (21). [0072]
- the first four-way switching valve (25) has a first port (P1) and a second port (P2) communicating with each other, and a third port (P2).
- the first port (P1) communicates with the second port (P2)
- the third port (P3) communicates with the fourth port KP4).
- the first state (see solid lines in Fig. 3 (A) and Fig. 4 (A)) communicates with the first port (P1) and the third port KP3), and the second port (P2) and the fourth port ( The state can be switched to the second state where P4) communicates (see the solid lines in FIGS. 3B and 4B).
- the first four-way switching valve (25) switches to the first state, and alternately performs the first operation in FIG. 3 (A) and the second operation in FIG. 3 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the expansion valve (23) is throttled to a predetermined opening.
- the refrigerant discharged from the compressor (21) condenses in the air heat exchanger (11) and the first adsorption heat exchanger (13), and then expands (23) ), Evaporates in the second adsorption heat exchanger (14), and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the air heat exchange (11) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the first adsorption heat exchange (13). Is discharged outside the room as exhaust air (EA), and the room air (RA) that has passed through the second adsorption heat exchange (14) returns to the room as supply air (SA).
- the latent heat treatment and the sensible heat treatment of the air are performed in the second adsorption heat exchanger (14). That is, the room air (RA) passing through the second adsorption heat exchanger (14) is gradually cooled after the water is mainly adsorbed by the adsorbent, and returns to the room. On the other hand, the room air (RA) that has passed through the first adsorption heat exchanger (13) regenerates the adsorbent at that time and is discharged outside the room.
- the refrigerant discharged from the compressor (21) is condensed in the air heat exchanger (11) and the second adsorption heat exchange (14), and then condensed in the expansion valve (23). It expands, evaporates in the first adsorption heat exchange (13), and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the air heat exchange (11) is exhausted.
- Room air (RA) is discharged outside the room as outlet air (EA) and passes through the first adsorption heat exchange (13), returns to the room as supply air (SA), and passes through the second adsorption heat exchanger (14).
- the passed indoor air (RA) is discharged outside as outdoor air (EA).
- the latent heat treatment and the sensible heat treatment of the air are performed in the first adsorption heat exchanger (13). That is, the room air (RA) passing through the first adsorption heat exchanger (13) is gradually cooled after the water is mainly adsorbed by the adsorbent, and returns to the room. On the other hand, the room air (RA) that has passed through the second adsorption heat exchanger (14) regenerates the adsorbent at that time and is discharged outside the room.
- the indoor latent heat load can be continuously processed while the indoor sensible heat load is continuously processed.
- the first operation and the second operation are switched by the controller (15) at shorter time intervals as the indoor latent heat load increases.
- the first four-way switching valve (25) switches to the second state, and alternately performs the first operation in FIG. 4 (A) and the second operation in FIG. 4 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the expansion valve (23) is throttled to a predetermined opening.
- the refrigerant discharged from the compressor (21) condenses in the second adsorption heat exchange (14), expands in the expansion valve (23), and expands in the first adsorption heat exchanger (23). It evaporates by heat exchange (13) and air heat exchange (11) and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the air heat exchange (11) is discharged outside as air (EA), and the indoor air (RA) that has passed through the first adsorption heat exchange (13). Is discharged outside the room as exhaust air (EA), and the room air (RA) that has passed through the second adsorption heat exchange (14) returns to the room as supply air (SA).
- the room air (RA) that has passed through the second adsorption heat exchanger (14) is firstly humidified by regenerating the adsorbent, is gradually heated, and returns to the room.
- the indoor air (RA) that has passed through the first adsorption heat exchanger (13) gives moisture to the adsorbent and is discharged outside the room.
- the refrigerant discharged from the compressor (21) condenses in the first adsorption heat exchanger (13), expands in the expansion valve (23), and expands in the second adsorption heat exchanger. It evaporates in the exchanger (14) and the air heat exchanger (11) and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the air heat exchange (11) is discharged outside as outdoor air (EA)
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is The indoor air (RA) returned to the room as the supply air (SA) and passed through the second air heat exchanger (12) is discharged outside as a discharge air (EA).
- the room air (RA) that has passed through the first adsorption heat exchanger (13) is first humidified by mainly regenerating the adsorbent, is gradually heated, and returns to the room.
- the room air (RA) that has passed through the second adsorption heat exchanger (14) gives moisture to the adsorbent and is discharged outside the room.
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation can be switched at time intervals according to the indoor latent heat load.
- the indoor latent heat load and the sensible heat load can be continuously processed. Therefore, the humidity in the room can be more stably adjusted as compared with the first embodiment.
- An air conditioner (10) according to Embodiment 3 is an example in which the configuration of the refrigerant circuit (20) is changed from Embodiments 1 and 2, as shown in FIGS.
- This refrigerant circuit (20) is composed of two air heat exchangers ( ⁇ ⁇ , (11, 12, 13, 14)) that mainly perform sensible heat treatment of air, 11, 12) and two adsorption heat exchangers (13, 14) that mainly perform latent heat treatment of air.
- the refrigerant circuit (20) includes a compressor (21), an outdoor heat exchanger (22), an expansion mechanism (23), and an indoor heat exchanger (24).
- a four-way switching valve (25, 26) is provided as a switching mechanism configured to form a connected closed circuit and to reverse the circulation direction of the refrigerant.
- the outdoor heat exchanger (22) is constituted by a first air heat exchanger (11), and the indoor heat exchanger (24) is connected to a first heat of adsorption heat connected in series with each other via an expansion mechanism (23).
- the heat exchanger comprises a heat exchanger (13), a second adsorption heat exchanger (14), and a second air heat exchanger (12).
- the switching mechanism (25, 26) includes a first four-way switching valve (first cutting shelf) (25) for reversing the overall refrigerant circulation direction in the refrigerant circuit (20), A second four-way switching valve (second switching mechanism) (26) and capillar for reversing the flow direction of the refrigerant between the first adsorption heat exchange (13) and the second adsorption heat exchanger (14) It is configured.
- the discharge side of the compressor (21) is connected to the first port (P1) of the first four-way switching valve (25).
- the second port (P2) of the first four-way switching valve (25) is connected to the first air heat exchange (11), and this first air heat exchanger (11) is connected to the second four-way switching valve (26).
- the second port (P2) of the second four-way switching valve (26) is connected to the first adsorption heat exchange (13), and the first adsorption heat exchange (13) has the expansion valve (23) and the second Adsorption heat exchange (14) is connected in series in order.
- the second adsorption heat exchange (14) is connected to the third port (P3) of the second four-way switching valve (26), and the fourth port (P4) of the second four-way switching valve (26) is connected to the second air. It is connected to the third port (P3) of the first four-way switching valve (25) via the heat exchanger (12). The fourth port (P4) of the first four-way switching valve (25) is connected to the suction side of the compressor (21).
- the first port (P1) and the second port (P2) communicate with each other.
- the first port (P1) communicates with the second port (P2)
- the third port (P3) communicates with the fourth port KP4).
- the first state (see solid lines in Fig. 5 (A) and Fig. 6 (A)) communicates with the first port (P1) and third port KP3), and the second port (P2) and fourth port ( The state can be switched to the second state (see solid lines in FIGS. 5B and 6B) where P4) communicates.
- the air conditioner (10) includes an outdoor unit (110) installed outdoors, an indoor unit (120) installed on a wall surface of the room, and an outdoor unit (120) installed on the wall surface of the room. It comprises a unit (110) and a connecting pipe (130) connecting the indoor unit (120).
- the outdoor heat exchange K110) includes the first air heat exchange (11), which is the outdoor heat exchange (22), and the outdoor heat exchange An outdoor fan (111) for blowing air to (22) is provided. As shown in FIG.
- the indoor unit (120) includes a first adsorption heat exchanger (13), which is an indoor heat exchanger (24), a second adsorption heat exchanger (14), and a second adsorption heat exchanger (14).
- a second air heat exchanger (12), an indoor fan (121) for blowing air to the indoor heat exchanger (24), and a damper (122) for switching an air passage in the indoor unit (120) are provided.
- adsorption heat exchange (13, 14) is arranged on the back side
- second air heat exchange (12) is arranged on the front side.
- the second air heat exchange (12) is constituted by two heat exchanges.
- the indoor unit (120) is provided with an exhaust pipe (123) communicating with the outdoor and an exhaust fan (124) for discharging air from the exhaust pipe (123) to the outdoor.
- the damper (122) includes a first damper (122a) corresponding to the first adsorption heat exchange (13) and a second damper (122b) corresponding to the second adsorption heat exchange (14).
- the indoor air (RA) that has passed through (14) is configured to be switchable to a second position where the indoor air (RA) is discharged outside through the exhaust fan (124) and the exhaust passage (123).
- FIG. 9 is a conceptual diagram showing the installation state of this air conditioner (10) and the flow of air during operation.
- this air conditioner (10 in the indoor unit (120), the indoor air (RA) that has passed through one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) Is discharged outside the room, and the room air (RA) passing through the other side and the room air (RA) passing through the second air heat exchange (12) circulate in the room.
- outdoor air (OA) passes through the first air heat exchanger (11) and circulates outside the room.
- the first four-way switching valve (25) switches to the first state, and alternately performs the first operation in FIG. 5 (A) and the second operation in FIG. 5 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the expansion valve (23) is throttled to a predetermined opening.
- the refrigerant discharged from the compressor (21) is subjected to the first air heat exchange.
- the outdoor air (OA) that has passed through the first air heat exchange ai) is discharged outside as outdoor air (EA)
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is discharged.
- the room air (RA) discharged outside the room as air (EA) and passed through the second adsorption heat exchange (14) and the second air heat exchange (12) returns to the room as supply air (SA).
- the refrigerant discharged from the compressor (21) condenses in the first air heat exchanger (11) and the second adsorption heat exchange (14), and then expands the expansion valve (23). ), Evaporates by the first adsorption heat exchange (13) and the second air heat exchange (12), and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the first air heat exchanger (11) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the second adsorption heat exchange (14). Is discharged outside the room as exhaust air (EA), and the room air (RA) that has passed through the first adsorption heat exchanger (13) and the second air heat exchanger (12) returns to the room as supply air (SA) .
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the room air (RA) passing through the indoor heat exchanger (24) is mainly dehumidified by passing through the first adsorption heat exchanger (13) and returns to the room, while the other Is mainly cooled by passing through the second air heat exchange (12) and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- the exhaust air (EA) discharged outside the room after passing through the indoor heat exchange (24) regenerates the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor sensible heat load is reduced. While processing the load continuously, the latent heat load in the room can be continuously processed. Also at this time, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases. As a result, when the indoor latent heat load is large, the frequency of switching is increased to increase the amount of dehumidification to increase indoor comfort, and conversely, when the indoor latent heat load is small, the frequency of switching is reduced to reduce dehumidification. Energy saving can be improved by reducing the amount.
- the first four-way switching valve (25) switches to the second state, and alternately performs the first operation in FIG. 6 (A) and the second operation in FIG. 6 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the expansion valve (23) is throttled to a predetermined opening.
- the refrigerant discharged from the compressor (21) condenses in the second air heat exchanger (12) and the second adsorption heat exchanger (14), It is expanded by the expansion valve (23), evaporated by the first adsorption heat exchange (13) and the first air heat exchange (12), and sucked into the compressor (21).
- the outdoor air (OA) that has passed through the first air heat exchange ai) is discharged outside as outdoor air (EA)
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is discharged.
- the room air (RA) discharged outside the room as air (EA) and passed through the second adsorption heat exchange (14) and the second air heat exchange (12) returns to the room as supply air (SA).
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the indoor air (RA) passing through the indoor heat exchanger (24) is mainly humidified by passing through the second adsorption heat exchanger (14), and returns to the room, while the other part is partially humidified. It is mainly heated by passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room. Further, the discharged air (EA) discharged outside the room after passing through the indoor heat exchange (24) gives moisture to the adsorbent when passing through the first adsorption heat exchanger (13).
- the refrigerant discharged from the compressor (21) condenses in the second air heat exchanger (12) and the first adsorption heat exchanger (13), and then expands the expansion valve ( It expands in 23), evaporates in the second adsorption heat exchanger (14) and the first air heat exchange (11), and is sucked into the compressor (21).
- the outdoor air (OA) that has passed through the first air heat exchanger (11) is discharged outside as outdoor air (EA)
- the room air (RA) that has passed through the adsorption heat exchange (14) is discharged outside as outdoor air (EA), and has passed through the first adsorption heat exchanger (13) and the second air heat exchanger (12).
- the air (RA) returns to the room as supply air.
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the room air (RA) passing through the indoor heat exchanger (24) is mainly humidified by passing through the first adsorption heat exchanger (13), and returns to the room, while the other part is It is mainly heated by passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the exhaust air (EA) discharged outside the room after passing through the indoor heat exchange (24) gives moisture to the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the difference between! / During the cooling dehumidification operation and the heating humidification operation is also obtained by switching between the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14).
- the latent heat load in the room can be continuously treated.
- the indoor sensible heat load can be continuously processed by the second air heat exchanger (12). Therefore, it is possible to more stably adjust the indoor humidity as compared with the first embodiment, and it is also possible to more stably adjust the indoor temperature as compared with the second embodiment.
- the air-conditioning apparatus is an example in which the configuration of the refrigerant circuit (20) is changed from Embodiment 13.
- This refrigerant circuit (20) has a plurality of heat exchanges (11, 12, 13, 14) for performing heat exchange between the refrigerant and the air. It has an air heat exchanger (11, 12) and two adsorption heat exchangers ⁇ (13,14) that mainly perform latent heat treatment of air.
- the refrigerant circuit (20) includes a compressor (21), an outdoor heat exchanger (22), an expansion mechanism (23), and an indoor heat exchanger (24). It is configured in a connected closed circuit, A four-way switching valve (25, 26) is provided as a switching mechanism for reversing the circulation direction of the refrigerant.
- the expansion mechanism includes a first expansion valve (first expansion mechanism) (31) and a second expansion valve (second expansion mechanism) (32).
- the outdoor heat exchanger (22) is constituted by a first air heat exchanger (11), and the indoor heat exchange (24) is connected to a first adsorption heat exchanger (24) connected in series via a second expansion valve (31). It comprises a heat exchanger (13), a second adsorption heat exchanger (14), and a second air heat exchanger (12).
- the switching mechanism (25, 26) is provided with a first four-way switching valve (first open shelf structure) (25) for reversing the overall refrigerant circulation direction in the refrigerant circuit (20), A second four-way switching valve (second switching mechanism) (26) and capillar for reversing the flow direction of the refrigerant between the first adsorption heat exchange (13) and the second adsorption heat exchanger (14) It is configured.
- the discharge side of the compressor (21) is connected to the first port (P1) of the first four-way switching valve (25).
- the second port (P2) of the first four-way switching valve (25) is the first air heat exchange
- the first air heat exchange (11) is connected to the first expansion valve (31) and the second air heat exchange (11).
- the second air heat exchanger (12) is connected to the third port (P3) of the first four-way switching valve (25), and the fourth port (P4) of the first four-way switching valve (25) is connected to the compressor ( It is connected to the suction side of 21).
- the second port (P2) of the first four-way switching valve (25) is connected to the first port (P2) of the second four-way switching valve (26) in parallel with the first air heat exchanger (11).
- P1, and the second port (P2) of the second four-way switching valve (26) is connected to the first adsorption heat exchanger (13), the second expansion valve (32), and the second adsorption heat exchanger. (14) are connected in series in order.
- the second adsorption heat exchanger (14) is connected to the third port (P3) of the second four-way switching valve (26), and the fourth port KP4) of the second four-way switching valve (26) is connected to the first four-way.
- the first port (P1) of the switching valve (25) is connected in parallel with the second air heat exchange (12).
- the refrigerant circuit (20) includes the compressor (21), the first air heat exchanger (11), the first expansion mechanism (31), and the second air heat exchange (12). ) Are connected in order, and in parallel with the first air heat exchange (11), the first expansion mechanism (31) and the second air heat exchange (12), the first adsorption heat exchange (13), The second expansion mechanism (32) and the second adsorption heat exchange (14) are connected.
- the first port (P1) and the second port (P2) communicate with each other.
- the first port (P1) and the second port (P2) communicate with each other, and the third port (P3) communicates with the fourth port KP4).
- the first state see the solid lines in FIGS. 10A and 11A
- the first port (P1) and the third port (P3) communicate, the second port KP2) and the fourth port
- the state can be switched to the second state where P4) communicates (see the solid lines in FIGS. 10 (B) and 11 (B)).
- the first four-way switching valve (25) switches to the first state, and alternately performs the first operation in FIG. 10 (A) and the second operation in FIG. 10 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the first expansion valve (31) and the second expansion valve (32) are reduced to a predetermined opening.
- the outdoor air (OA) that has passed through the first air heat exchange (11) is discharged outside as exhaust air
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is discharged.
- Room air (RA) discharged outside the room as air (EA) and passed through the second adsorption heat exchange (14) and the second air heat exchange (12) returns to the room as supply air (SA).
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the room air (RA) that passes through the indoor heat exchanger (24) is mainly dehumidified by passing through the second adsorption heat exchanger (14), and returns to the room. Is mainly cooled by passing through the second air heat exchange (12) and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- the exhaust air (EA) discharged outside the room after passing through the indoor heat exchange (24) regenerates the adsorbent when passing through the first adsorption heat exchanger (13).
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the room air (RA) passing through the indoor heat exchanger (24) is mainly dehumidified by passing through the first adsorption heat exchanger (13) and returns to the room, while the other Is mainly cooled by passing through the second air heat exchange (12) and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- the exhaust air (EA) discharged outside the room after passing through the indoor heat exchange (24) regenerates the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at shorter time intervals as the indoor latent heat load increases.
- the switching frequency is increased to increase the dehumidification amount to increase indoor comfort, and conversely, when the indoor latent heat load is small, the switching frequency is reduced to reduce dehumidification. Energy saving can be improved by reducing the amount.
- the first four-way switching valve (25) switches to the second state, and alternately performs the first operation in FIG. 11 (A) and the second operation in FIG. 11 (B). Then, during the first operation, the second four-way switching valve (26) switches to the first state, and during the second operation, the second four-way switching valve (26) switches to the second state. In both the first operation and the second operation, the expansion valve (23) is restricted to a predetermined opening.
- the outdoor air (OA) that has passed through the first air heat exchange (11) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the first adsorption heat exchange (13) ) Is discharged outside the room as exhaust air (EA), and the room air (RA) that has passed through the second adsorption heat exchange (14) and the second air heat exchange (12) returns to the room as supply air (SA).
- SA supply air
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the room air (RA) passing through the indoor heat exchanger (24) is mainly humidified and returned to the room by passing through the second adsorption heat exchanger (14), and the other part is Is mainly heated by passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the exhaust air (EA) discharged through the indoor heat exchange (24) and discharged to the outside of the power chamber gives moisture to the adsorbent when passing through the first adsorption heat exchange (13).
- part of the refrigerant discharged from the compressor (21) is supplied to the second air heat exchanger.
- the outdoor air (OA) that has passed through the first air heat exchange (11) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the second adsorption heat exchange (14). Is discharged outside the room as exhaust air (EA), and the room air (RA) that has passed through the first adsorption heat exchange (13) and the second air heat exchanger (12) returns to the room as supply air (SA) .
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the room air (RA) passing through the indoor heat exchanger (24) is mainly humidified by passing through the first adsorption heat exchanger (13), and returns to the room, while the other part is It is mainly heated by passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room. Also, the exhaust air (EA) discharged outside the room after passing through the indoor heat exchange (24) is When passing through the second adsorption heat exchanger (14), moisture is given to the adsorbent.
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) are switched to one another.
- the latent heat load in the room can be continuously treated.
- the indoor sensible heat load can be treated by the second air heat exchange (12). Therefore, similarly to the third embodiment, the indoor humidity can be stably adjusted, and the indoor temperature can be stably adjusted.
- the flow rate of the refrigerant flowing through the air heat exchangers (11, 12) and the flow rate of the refrigerant flowing through the adsorption heat exchange ⁇ (13, 14) are reduced by the two expansion valves (31, 32). Therefore, the control for processing the indoor latent heat load and the sensible heat load can be performed more easily than in the third embodiment.
- the air-conditioning apparatus has the same configuration of the refrigerant circuit (20) as in Embodiment 4 as shown in FIGS. 12 and 13, except for the first adsorption heat exchanger (13) and the second adsorption heat exchanger.
- a heat exchanger (14) is arranged outside a room. That is, in this refrigerant circuit (20), the outdoor heat exchange (22) is composed of the first air heat exchange (11), the first adsorption heat exchange (13), and the second adsorption heat exchange (14).
- the indoor heat exchanger (24) is constituted only by the second air heat exchanger (12).
- the air conditioner (10) is configured as an air supply fan type device in which the amount of air supplied to the room is larger than the amount of exhaust air to the outside.
- FIG. 14 is a conceptual diagram showing the installation state of this air conditioner (10) and the flow of air during operation.
- this air conditioner (10 in the outdoor unit (110), outdoor air (OA) that has passed through one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) But The outdoor air (OA) supplied to the room and passed through the other side and the (OA) air passed through the first air heat exchanger (11) circulates outside the room.
- the room air (RA) passes through the second air heat exchanger (12) and circulates in the room.
- the first operation in FIG. 12 (A) and the second operation in FIG. 12 (B) are alternately performed.
- the first air heat exchanger (11) and the first adsorption heat exchanger (13) become condensers, and the second air heat exchanger (12) and the second adsorption heat exchanger (14) It becomes an evaporator.
- the outdoor air (OA) passing through the first air heat exchanger (11) and the first adsorption heat exchanger (13) is discharged outside as outdoor air (EA), and the second adsorption heat exchange (14) is performed.
- the outdoor air (OA) is supplied as supply air (SA), and the indoor air (RA) that has passed through the second air heat exchange (12) returns to the room as supply air.
- SA supply air
- RA indoor air
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the second adsorption heat exchange (14), and the indoor air (RA) passes through the second air heat exchange (12). After passing, it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- part of the outdoor air (OA) regenerates the adsorbent when passing through the first adsorption heat exchange (13).
- the first air heat exchanger (11) and the second adsorption heat exchanger (14) become condensers, and the second air heat exchange (12) and the first adsorption heat exchange (13) Becomes an evaporator.
- the outdoor air (OA) passing through the first air heat exchanger (11) and the second adsorption heat exchanger (14) is discharged outside as outdoor air (EA), and the first adsorption heat exchange (OA) is performed.
- the outdoor air (OA) that has passed through 13) is supplied into the room as supply air (SA), and the indoor air (RA) that has passed through the second air heat exchange (12) also returns to the room as supply air (RA).
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and the second air
- the sensible heat treatment of air is mainly performed in the heat exchanger (12). That is, part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the first adsorption heat exchange (13), and the indoor air (RA) is passed through the second air heat exchange (12). After passing, it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently. Also, part of the outdoor air (OA) regenerates the adsorbent when passing through the second adsorption heat exchange (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the first operation in FIG. 13A and the second operation in FIG. 13B are alternately performed.
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) become condensers, and the first air heat exchange ai) and the first adsorption heat exchange (13) become the evaporator. Become.
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the second adsorption heat exchange (14), and the indoor air (RA) passes through the second air heat exchange (12). By doing so, it is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- a part of the outdoor air (OA) gives moisture to the adsorbent when passing through the first adsorption heat exchange (13).
- the second air heat exchanger (12) and the first adsorption heat exchanger (13) become condensers, and the first air heat exchanger (11) and the second adsorption heat exchange.
- the vessel (14) becomes the evaporator.
- the outdoor air (OA) that has passed through the first air heat exchanger (11) and the second adsorption heat exchanger (14) is discharged outside as outdoor air (EA), and the first adsorption heat exchange (
- the outdoor air (OA) that has passed through (13) is supplied into the room as supply air (SA), and the indoor air (RA) that has passed through the second air heat exchanger (12) is Return indoors as supply air (SA).
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the first adsorption heat exchange (13), and the room air (RA) passes through the second air heat exchange (12). By doing so, it is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room. Also, a part of the outdoor air (OA) gives moisture to the adsorbent when passing through the second adsorption heat exchange (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the present invention can be applied to an air supply type air conditioner, and in this case, the same effects as those of the above embodiments can be obtained.
- the air-conditioning apparatus has the same configuration of the refrigerant circuit as Embodiment 4.
- This air conditioner (10) is configured as a ventilation fan type device that balances the amount of air supplied to the room and the amount of exhaust air to the outside.
- FIG. 17 is a conceptual diagram showing the installation state of this air conditioner and the flow of air during operation.
- this air conditioner 10
- outdoor air (OA) in the indoor unit (120), outdoor air (OA) has passed through one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14). ) Is supplied into the room, and the room air (RA) passing through the other side is discharged outside the room.
- the indoor air (RA) that has passed through the second air heat exchanger (12) circulates indoors.
- outdoor air (OA) passes through the first air heat exchanger (11) and circulates outdoor.
- the first operation in FIG. 15 (A) and the second operation in FIG. 15 (B) are alternately performed.
- the first air heat exchanger (11) and the first adsorption heat exchanger (13) become condensers, and the second air heat exchanger (12) and the second adsorption heat exchanger (14) become evaporators. It becomes.
- the outdoor air (OA) passing through the first air heat exchanger (11) is discharged outside as outdoor air (EA), and the indoor air (RA) passing through the second air heat exchanger (12) is discharged. Return indoors as supply air (SA).
- the indoor air (RA) that has passed through the first adsorption heat exchanger (13) is discharged outside as outdoor air (EA), and the outdoor air (OA) that has passed through the second adsorption heat exchanger (14) is supplied. It is supplied indoors as air (SA).
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, a part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the second adsorption heat exchange (14), and a part of the indoor air (RA) is supplied to the second air heat exchange (14). After passing through 12), it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently. Also, part of the indoor air (RA) regenerates the adsorbent when passing through the first adsorption heat exchange (13).
- the first air heat exchanger (11) and the second adsorption heat exchanger (14) become condensers, and the second air heat exchange (12) and the first adsorption heat exchange (13) Becomes an evaporator.
- the outdoor air (OA) passing through the first air heat exchanger (11) is discharged outside as exhaust air, and the indoor air (RA) passing through the second air heat exchanger (12) is supplied air.
- SA room air
- the outdoor air (OA) that has passed through the first adsorption heat exchanger (13) is supplied indoors as supply air (SA), and the indoor air (RA) that has passed through the second adsorption heat exchanger (14) is discharged.
- EA Exhausted outside as air
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the first adsorption heat exchange (13)
- part of the indoor air (RA) is supplied to the second air heat exchange (13).
- indoor cooling and dehumidification can be performed efficiently.
- part of the indoor air (RA) regenerates the adsorbent when passing through the second adsorption heat exchange (13).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the first operation in FIG. 16A and the second operation in FIG. 16B are alternately performed.
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) become condensers, and the first air heat exchange ai) and the first adsorption heat exchange (13) become the evaporator. Become.
- the outdoor air (OA) that has passed through (11) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the second air heat exchange (12) is supplied indoors as supply air (SA).
- SA supply air
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is discharged outside as outdoor air (EA)
- the outdoor air (OA) that has passed through the second adsorption heat exchanger (14) is supplied. It is supplied indoors as air (SA).
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the second adsorption heat exchange (14), and part of the indoor air (RA) is supplied to the second air heat exchange (12). ), It is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room. Further, a part of the indoor air (RA) gives moisture to the adsorbent when passing through the first adsorption heat exchange (13).
- the second air heat exchanger (12) and the first adsorption heat exchanger (13) become condensers, and the first air heat exchanger (11) and the second adsorption heat exchange.
- the vessel (14) becomes the evaporator.
- the outdoor air (OA) that has passed through the first air heat exchanger ai) is discharged outside as outdoor air (EA), and the indoor air (RA) that has passed through the second air heat exchanger (12). Returns to the room as supply air (SA).
- the outdoor air (OA) that has passed through the first adsorption heat exchange (13) is supplied into the room as supply air (SA), and the indoor air (RA) that has passed through the second adsorption heat exchange (14) is discharged air ( EA) is discharged outside the room.
- SA supply air
- RA indoor air
- EA discharged air
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and the second air
- the sensible heat treatment of air is mainly performed in the heat exchanger (12). That is, part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the first adsorption heat exchange (13), and part of the indoor air (RA) is supplied to the second air heat exchange (12). ), It is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- part of the room air (RA) gives moisture to the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the present invention can be applied to an air conditioner of a ventilation fan type, and in such a case, the same effects as those of the above embodiments can be obtained.
- two adsorption heat exchanges ⁇ (13,14) are installed in the room. These adsorption heat exchanges (13,14) are as shown in Fig.18. It may be installed outdoors.
- outdoor air (OA) that has passed through one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) is supplied into the room, and passed through the other.
- Indoor air (RA) is exhausted outside the room.
- the indoor air (RA) that has passed through the second air heat exchanger (12) circulates indoors.
- the outdoor air (OA) passes through the first air heat exchanger (11) and circulates outside the room.
- the air conditioner (10) according to Embodiment 7 includes two air heat exchangers (11, 12) and two adsorption heat exchangers (13, 14) in one casing. This is an example where it is housed in (150), integrated and installed behind the ceiling.
- Embodiment 7 is an example of a configuration in which the air conditioner (10) of the present invention is configured as a fully ventilated type.
- FIG. 19 is a conceptual diagram showing the installation state of this air conditioner (10) and the flow of air during operation.
- FIG. 20 is a plan view of FIG. Surface structure diagram, (C) is the right side structure diagram [0166]
- the casing (150) of the air conditioner (10) is formed in a square box shape.
- One of a pair of end surfaces of the casing (150) has a first suction port (151) for taking in outdoor air (OA) into the casing (150) and a first suction port (151) for taking in room air (RA) into the casing (150). 2 A suction port (152) is provided.
- the other of the pair of end faces is provided with a first outlet (153) for supplying supply air (SA) to the room and a second outlet (154) for discharging exhaust air (EA) to the outside of the room.
- Ducts are connected to the first suction port (151), the second suction port (152), the first air outlet (153), and the second air outlet (154), respectively. And the exhaust air is flowing.
- a heat exchange chamber (160) in which the air heat exchange (11, 12) and the adsorption heat exchange (13, 14) are arranged, fans (191, 192), It is divided into a machine room (170) in which machine parts such as the compressor (21) are arranged.
- the heat exchange chamber (160) is divided into three parts in the left-right direction of the casing (150).
- a transfer room (163) and a second air heat exchange room (164) are configured.
- the adsorption heat exchange chambers (161, 162) and the air heat exchange chambers (163, 164) are each divided into two stages vertically in the height direction.
- the adsorption heat exchange chamber (161, 162) is divided into two rows in the front-rear direction (vertical direction in the figure), and the first adsorption heat exchange chamber (161) and the second adsorption heat exchange chamber (162) are divided into two rows. It is configured.
- the first air heat exchanger (11) is arranged above the first air heat exchanger chamber (163), and the second air heat exchanger (12) is arranged above the second air heat exchanger chamber (164). Are located.
- the first adsorption heat exchange (13) is located at the center of the upper and lower stages of the first adsorption heat exchange chamber (161), and the second adsorption heat exchange (14) is located in the second adsorption heat exchange chamber (162). It is located at the center of the upper and lower tiers.
- the first air heat exchanger chamber (163) communicates with the first suction port (151) in both the upper and lower stages.
- a first damper (181) is provided between the first adsorption heat exchanger room (161) and the second adsorption heat exchange room (162).
- a second dambar (182) is provided therebetween.
- a third damper (183) is provided between the first adsorption heat exchange room (161) and the second adsorption heat exchange room (162).
- the second air heat exchanger chamber (164) communicates with the second suction port (152) in both the upper and lower stages. ing. Above the second air heat exchanger chamber (164), a fifth damper (185) is provided between the first adsorption heat exchanger chamber (161) and the second adsorption heat exchanger chamber (162). A sixth dambar (186) is provided between the first and second dampers. Below the second air heat exchange chamber (164), a seventh damper (187) is provided between the second air heat exchange chamber (161) and the first adsorption heat exchange chamber (161). The 8th Danno (188) is provided between and.
- a compressor (21) is arranged at the center, and a first fan (191) and a second fan (192) are arranged on both sides thereof. I have.
- the first fan (191) communicates with the first outlet (153) and the upper stage of the second air heat exchanger chamber (164). Further, the second fan (192) communicates with the second outlet (154) and the upper stage of the first air heat exchanger chamber (163).
- the refrigerant circuit (20) has the same configuration as that shown in Figs. 15 and 16, and the flow of air in each heat exchange (ll-14) is the same as in Figs. The difference is that, in the examples of FIGS. 15 and 16, the compressor (21) and the first air heat exchange ai) are arranged outside the room, whereas in Embodiment 7, all the devices are arranged indoors. The only thing that has been done.
- the first operation (see Fig. 15 (A)) and the second operation (see Fig. 15 (B)) are performed alternately.
- the first air heat exchanger (11) and the first adsorption heat exchanger (13) become condensers
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) It becomes an evaporator.
- the outdoor air (OA) whose first suction port (151) force was also taken into the casing (150) is partially discharged to the first air heat exchanger chamber (163) in the upper stage.
- the force of the second outlet (154) is also discharged outside through the second fan (192).
- the remainder of the outdoor air (OA) taken into the first suction port (151) force casing (150) flows from the lower portion of the first air heat exchanger chamber (163) to the second adsorption heat exchanger chamber (163). 162), is dehumidified by the second adsorption heat exchanger (14), and flows out to the upper stage of the second air heat exchanger chamber (164).
- the air is supplied from the first outlet (153) to the room through the (191).
- part of the room air (RA) taken into the casing (150) from the second suction port (152) is in the upper stage of the second air heat exchanger room (164). ), And is supplied to the room from the first outlet (153) via the first fan (191).
- the remainder of the room air (RA) taken into the casing (150) of the second suction port (152) is reduced by the lower force of the second air heat exchange chamber (164).
- Flows into the chamber (161) to regenerate the first adsorption heat exchange (13) flows out to the upper stage of the first air heat exchanger chamber (163), and then flows through the second fan (192) to the second outlet (154) Power is discharged outside the room.
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the second adsorption heat exchange (14), and part of the indoor air (RA) is supplied to the second air heat exchange (14).
- OA outdoor air
- RA indoor air
- the first air heat exchanger (11) and the second adsorption heat exchanger (14) become condensers, and the second air heat exchanger (12) and the first adsorption heat exchanger (13) Becomes an evaporator.
- the 2nd dambar (182), 3rd dambar (183), 5th dambar (185), and 8th dambar (188) are opened, and 1st dambar (181), 4th dambar (184), 6th dambar (186), 7th dambar (187) is closed.
- the outdoor air (OA) whose first suction port (151) force was also taken into the casing (150) is partially discharged to the first air heat exchanger chamber (163) in the upper stage.
- the force of the second outlet (154) is also discharged outside through the second fan (192).
- the remainder of the outdoor air (OA) taken into the first suction port (151) force casing (150) flows from the lower part of the first air heat exchanger chamber (163) to the first adsorption heat exchanger chamber (163). 161), is dehumidified by the first adsorption heat exchanger (13), flows out to the upper stage of the second air heat exchanger chamber (164), and then flows through the first fan (191) to the first outlet.
- part of the room air (RA) taken into the casing (150) from the second suction port (152) is in the upper stage of the second air heat exchanger room (164). ), And is supplied to the room from the first outlet (153) via the first fan (191).
- the remainder of the room air (RA) taken into the casing (150) from the second suction port (152) is converted to the second air heat exchange chamber (164).
- the lower stage force flows into the second adsorption heat exchange chamber (162) to regenerate the second adsorption heat exchange (14) and flows out to the upper stage of the first air heat exchanger chamber (163), and then the second fan (192)
- the second outlet (154) is discharged to the outside of the room through the power outlet.
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, a part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the first adsorption heat exchange (13), and a part of the indoor air (RA) is supplied to the second air heat exchange (13). After passing through 12), it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the first operation (see Fig. 16 (A)) and the second operation (see Fig. 16 (B)) are performed alternately.
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) become condensers, and the first air heat exchanger (11) and the first adsorption heat exchanger (13) It becomes an evaporator.
- the first dambar (A)
- part of the room air (RA) taken into the casing (150) from the second suction port (152) is in the upper stage of the second air heat exchanger room (164). ) And is supplied to the room from the first outlet (153) via the first fan (191). Also, the second suction port (152) The remainder of the indoor air (RA) taken into the single sing (150) also flows into the first adsorption heat exchange chamber (161) with the lower stage force of the second air heat exchange chamber (164). Moisture is given to the commutator (13), and after flowing out to the upper stage of the first air heat exchanger room (163), it is discharged to the outside of the second outlet (154) power chamber via the second fan (192).
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the second adsorption heat exchange (14), and part of the indoor air (RA) is supplied to the second air heat exchange (12). ), It is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the second air heat exchanger (12) and the first adsorption heat exchanger (13) become condensers, and the first air heat exchanger (11) and the second adsorption heat exchanger ( 14) becomes the evaporator.
- the 2nd dambar (182), 3rd dambar (183), 5th dambar (185), and 8th dambar (188) are opened, and 1st dambar (181), 4th dambar (184), 6th dambar (186), 7th dambar (187) is closed.
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and the second air
- the sensible heat treatment of air is mainly performed in the heat exchanger (12). That is, a part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the first adsorption heat exchange (13), and a part of the indoor air (RA) is supplied to the second air heat exchange (12). ), It is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the air-conditioning apparatus includes a cold / hot water circuit (40) through which cold / hot water flows, instead of the refrigerant circuit (20) in each of the above embodiments.
- the cold / hot water circuit (40) includes a plurality of heat exchanges where cold / hot water and air exchange heat.
- the chilled / hot water circuit (40) includes two air heat exchangers (11, 12) that mainly perform sensible heat treatment of air as the plurality of heat exchanges (11, 12, 13, 14). And two adsorption heat exchangers (13, 14) for performing latent heat treatment of air.
- the cold / hot water circuit (40) includes a hot water source (41), a cold water source (42), an outdoor heat exchanger (43), and an indoor heat exchange (44).
- the outdoor heat exchange (43) is composed of the first air heat exchange (11)
- the indoor heat exchanger (44) is composed of the second air heat exchanger (12) and the first adsorption heat exchanger (13).
- the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) are connected in parallel with each other, and the first air heat exchange (ll) and the second air heat exchange (ll) are connected to each other. It is connected in parallel with the air heat exchanger (12). Furthermore, the first adsorption heat exchange (13) and the second adsorption heat exchange (14), the first air heat exchanger (11) and the second air heat exchanger (12) are connected to a hot water source (41) and a cold water source. (42) is connected in series with each other!
- the cold / hot water circuit (40) is arranged so that hot water flows in one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) and cold water flows in the other direction.
- the three-way valve (Al) connected to one end of the first adsorption heat exchange (13), the three-way valve (A2) connected to the other end, and the second adsorption heat exchange (14) )
- Three-way valve (Bl) connected to one end of And a three-way valve (B2) connected to the other end.
- the cold / hot water circuit (40) controls the flow direction of the cold / hot water so that hot water flows through one of the first air heat exchanger (11) and the second air heat exchanger (12) and cold water flows through the other.
- the three-way valve (Cl) connected to one end of the first air heat exchange ai), the three-way valve (C2) connected to the other end, and the second air heat exchanger (12)
- a three-way valve (Dl) connected to one end of the valve and a three-way valve (D2) connected to the other end.
- the hot water source (41) has a three-way valve (A1) and a three-way valve (B1) connected in parallel at respective hot water inflow ports (Pil), and the cold water source (42) has a three-way valve ( A1) and three-way valve (B1) are connected in parallel to the respective chilled water inflow ports (Pi2).
- the three-way valve (A2) and the three-way valve (B2), and the three-way valve (C1) and the three-way valve (D1) are the three-way valve (C1) and the three-way valve (B2).
- the three-way valves (D1) are connected in parallel, and the three-way valves (A2) and (B2) are connected in parallel to the three-way valves (C1) and (D1).
- the hot water outflow ports (Pol) of the three-way valve (A2) and the three-way valve (B2) communicate with each other, and also communicate with the hot water inflow ports (Pil) of the three-way valve (C1) and the three-way valve (D1). are doing.
- the chilled water outflow ports (Po2) of the three-way valve (A2) and the three-way valve (B2) communicate with each other, and the chilled water inflow port (R2) of the three-way valve (C1) and the three-way valve (D1). Communicating.
- the hot water source (41) has a three-way valve (C2) and a three-way valve (D2) connected in parallel at respective hot water outflow ports (Pol).
- the cold water source (42) has a three-way valve ( C2) and the three-way valve (D2) are connected in parallel to the respective cold water outflow ports (Po2)!
- the first operation in FIG. 21 (A) and the second operation in FIG. 21 (B) are alternately performed.
- the ports indicated by solid lines in Fig. 21 (A) are opened and the ports indicated by broken lines are closed at each three-way valve (A1-D2), so that the first air heat exchange ai) and the first 2 Adsorption heat exchange
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12). That is, a part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the first adsorption heat exchange (13), and a part of the indoor air (RA) is supplied to the second air heat exchange (13). After passing through 12), it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently. In addition, part of the indoor air (RA) regenerates the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases. [0202] (Heating and humidifying operation)
- the first operation in FIG. 22 (A) and the second operation in FIG. 22 (B) are alternately performed.
- the ports indicated by solid lines in Fig. 22 (A) are opened and the ports indicated by broken lines are closed at each three-way valve (A1-D2), and the second air heat exchange (12)
- the second adsorption heat exchange (14) becomes a heater
- the first air heat exchange ai) and the first adsorption heat exchange (13) become a cooler.
- the outdoor air (OA) that has passed through the first air heat exchanger (11) is discharged outside as outdoor air (EA)
- the indoor air (RA) that has passed through the second air heat exchange (12) Returns to the room as supply air (SA).
- the indoor air (RA) that has passed through the first adsorption heat exchange (13) is discharged outside as outdoor air (EA), and the outdoor air (OA) that has passed through the second adsorption heat exchange (14) is supplied air.
- SA is supplied indoors.
- latent heat treatment of air is mainly performed in the second adsorption heat exchanger (14), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the second adsorption heat exchange (14)
- part of the indoor air (RA) is supplied to the second air heat exchange (12).
- It is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- a part of the indoor air (RA) gives moisture to the adsorbent when passing through the first adsorption heat exchange (13).
- the outdoor air (OA) that has passed through the first adsorption heat exchange (13) is supplied indoors as supply air (SA), and the indoor air (RA) that has passed through the second adsorption heat exchanger (14) is discharged. It is discharged outside as air (EA).
- latent heat treatment of air is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment of air is mainly performed in the second air heat exchanger (12).
- one of the outdoor air (OA) Section is mainly humidified and supplied to the room by passing through the first adsorption heat exchange (13), and a part of the room air (RA) is mainly heated by passing through the second air heat exchange (12). Then return to the room.
- OA outdoor air
- RA room air
- part of the indoor air (RA) regenerates the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the air conditioner (10) is considered to be a separate type as in the first to sixth embodiments, and the four heat exchangers (11, 12, 13, 14) are connected to the outdoor heat exchanger (43).
- the indoor heat exchanger (44) it is also possible to adopt a configuration in which there is no distinction between the outdoor heat exchanger (43) and the indoor heat exchanger (44) as an integrated type as in Embodiment 7. .
- Embodiment 9 is an example in which the configuration of the cold / hot water circuit (40) is changed from Embodiment 8 as shown in FIGS.
- the cold / hot water circuit (40) includes a hot water source (41), a cold water source (42), an outdoor heat exchanger (43), and an indoor heat exchange (44). (43) is the first air heat exchange (11) and the first adsorption heat exchange
- indoor heat exchange (44) consists of the second air heat exchange (12) and the second adsorption heat exchange
- the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14) are connected in parallel with each other, and the first air heat exchange (ll) and the second air heat exchange (ll) are connected to each other. It is connected in parallel with the air heat exchanger (12). Furthermore, the first adsorption heat exchange (13) and the second adsorption heat exchange (14), the first air heat exchanger (11) and the second air heat exchanger (12) are connected to a hot water source (41) and a cold water source. (42) is connected in parallel to each other!
- the cold / hot water circuit (40) is connected to one of the first adsorption heat exchanger (13) and the second adsorption heat exchanger (14).
- a three-way valve (Al) connected to one end of the first adsorption heat exchanger (13) and the other end as a first cutting structure (45) that switches the flow direction of cold and hot water so that hot water flows to the other side and cold water flows to the other side.
- a three-way valve (Bl) connected to one end of the second adsorption heat exchange (14), and a three-way valve (B2) connected to the other end.
- the cold / hot water circuit (40) controls the flow direction of the cold / hot water so that hot water flows through one of the first air heat exchanger (11) and the second air heat exchanger (12) and cold water flows through the other.
- the three-way valve (Cl) connected to one end of the first air heat exchange ai), the three-way valve (C2) connected to the other end, and the second air heat exchanger (12)
- a three-way valve (Dl) connected to one end of the valve and a three-way valve (D2) connected to the other end.
- the hot water source (41) has a three-way valve (A1) and a three-way valve (B1) connected in parallel at respective hot water inflow ports (Pil).
- the cold water source (42) has a three-way valve ( A1) and three-way valve (B1) are connected in parallel at their respective chilled water inflow ports (Pi2).
- a three-way valve (C1) and a three-way valve (D1) are connected in parallel at the respective hot water inflow ports (Pil) to the hot water source (41), and a three-way valve ( C1) and the three-way valve (D1) are connected in parallel at the respective chilled water inflow ports (Pi2).
- the hot water source (41) has a three-way valve (A2) and a three-way valve (B2) connected in parallel at respective hot water outflow ports (Pol).
- the cold water source (42) has a three-way valve ( A2) and three-way valve (B2) are connected in parallel at their respective cold water outflow ports (Po2).
- the hot water source (41) has a three-way valve (C2) and a three-way valve (D2) connected in parallel at respective hot water outflow ports (Pol), and the cold water source (42) has a three-way valve (C C2) and three-way valve (D2) are connected in parallel at each chilled water outlet port (Po2).
- the first operation in FIG. 23 (A) and the second operation in FIG. 23 (B) are alternately performed.
- the ports indicated by the solid lines in Fig. 23 (A) are opened and the ports indicated by the broken lines are closed at each three-way valve (A1-D2), so that the first air heat exchange ai) and the 2 Adsorption heat exchange
- the port indicated by the solid line in FIG. 23 (B) is connected to each three-way valve (A1-D2).
- the first air heat exchanger ai) and the first adsorption heat exchanger (13) become heaters
- the exchanger (14) becomes a cooler.
- the first operation in FIG. 24 (A) and the second operation in FIG. 24 (B) are alternately performed.
- the ports indicated by the solid line in Fig. 24 (A) are opened and the ports indicated by the dashed line are closed at each three-way valve (A1-D2), and the second air heat exchange (12)
- the second adsorption heat exchange (14) becomes a heater
- the first air heat exchange ai) and the first adsorption heat exchange (13) become a cooler.
- the air conditioner (10) according to Embodiment 10 is different from the air conditioner (10) in Embodiment 8 in that the chilled / hot water circuit (40) is a closed cycle circuit in which chilled / hot water circulates, as shown in FIGS. This is an example in which the cold / hot water circuit (40) is configured as an open cycle circuit in which cold / hot water is drained.
- the first air heat exchange (11) has a three-way valve (C1) connected to one end, the other end is open, and the second air heat exchange (12)
- the three-way valve (D1) is connected to one end, while the other end is open. Therefore, this cooling / heating water circuit (40)
- the hot and cold water exiting the exchanger (11) and the second air heat exchanger (12) is drained without returning to the hot water source (41) and the cold water source (42).
- the other configuration is the same as that of the eighth embodiment.
- the operation is the same as that of the eighth embodiment except that the cold / hot water is drained without being circulated.
- Embodiment 10 The configuration of the open / close cycle of the cold / hot water circuit (40) as in Embodiment 10 is also applicable to the circuits of Embodiment 9 in FIGS.
- An air conditioner (10) according to Embodiment 11 is an example in which a refrigerant circuit (20) and a cold / hot water circuit (40) are used in combination, as shown in FIGS. 27 and 28.
- a cold / hot water circuit (40) is connected to two adsorption heat exchangers (a first adsorption heat exchanger (13) and a second adsorption heat exchanger (14)), and two air heat exchangers are provided.
- the refrigerant circuit (20) is connected to the (first air heat exchange (11) and the second air heat exchange (12)).
- the first air heat exchange (11) constitutes the outdoor heat exchange (22), and the second air heat exchanger (12), the first adsorption heat exchanger (13), and the second adsorption heat exchanger (14) constitutes indoor heat exchange (24) (44).
- the refrigerant circuit (20) includes a compressor (21), a first air heat exchanger (11), an expansion valve (23) as an expansion mechanism, and a second air heat exchange (12). And a four-way switching valve (25) as a disconnecting structure.
- the discharge side of the compressor (21) is connected to the first port (P1) of the four-way switching valve (25).
- the second port (P2) of the four-way switching valve (25) is connected to the first air heat exchange (11), and the first air heat exchange (11) has the expansion valve (23) and the second air.
- Heat exchange (12) is connected in series in order.
- the second air heat exchange (12) is connected to the third port (P3) of the four-way switching valve (25), and the fourth port (P4) of the four-way switching valve (25) is sucked into the compressor (21) Connected to the side.
- the four-way switching valve (25) is in a first state in which the first port (P1) communicates with the second port (P2), and the third port (P3) communicates with the fourth port (P4). (Refer to the solid lines in Fig. 27 (A) and Fig. 27 (B)) and the first port (P1) and the third port KP3), and the second port (P2) and the fourth port KP4).
- the state can be switched to the second state (see the solid lines in FIGS. 28A and 28B).
- the cold / hot water circuit (40) includes a hot water source (41), a cold water source (42), and a first adsorption heat exchanger (13) and a second adsorption heat exchanger (14 ). Further, the cold / hot water circuit (40) controls the flow direction of the cold / hot water so that hot water flows in one of the first adsorption heat exchange (13) and the second adsorption heat exchange (14) and cold water flows in the other.
- the switching mechanism (45) As the switching mechanism (45), the three-way valve (A1) connected to one end of the first adsorption heat exchanger (13), the three-way valve (A2) connected to the other end, and the second adsorption heat exchanger (14) A three-way valve (Bl) connected to one end and a three-way valve (B2) connected to the other end are provided.
- the hot water source (41) has a three-way valve (A1) and a three-way valve (B1) connected in parallel at respective hot water inflow ports (Pil).
- the cold water source (42) has a three-way valve ( A1) and three-way valve (B1) are connected in parallel at their respective chilled water inflow ports (Pi2).
- a three-way valve (A2) and a three-way valve (B2) are connected to the hot water source (41) in parallel at respective hot water outflow ports (Pol), and the three-way valve (42) is connected to the cold water source (42).
- A2) and three-way valve (B2) are connected in parallel at each chilled water outlet port (Po2).
- the first operation in FIG. 27A and the second operation in FIG. 27B are alternately performed.
- the port indicated by the solid line in FIG. 27 (A) is opened and the port indicated by the broken line is closed at each three-way valve (A1-D2), so that the second adsorption heat exchange (14) is started. It becomes a heater, the first adsorption heat exchange (13) becomes a cooler, and the four-way switching valve (25) switches to the first state, condensing the first air heat exchange (11).
- the second air heat exchanger (12) becomes the evaporator.
- the first operation in FIG. 28A and the second operation in FIG. 28B are alternately performed.
- the port indicated by the solid line in FIG. 28 (A) is opened and the port indicated by the broken line is closed at each three-way valve (A1-D2), so that the second adsorption heat exchange (14) is performed. It becomes a heater, the first adsorption heat exchange (13) becomes a cooler, and the four-way switching valve (25) switches to the second state, condensing the second air heat exchange (12).
- the first air heat exchanger (11) becomes the evaporator.
- the port indicated by the solid line in FIG. 28 (B) is opened and the port indicated by the broken line is closed in each of the three-way valves (A1 to D2), whereby the first heat of adsorption is obtained. Since the exchange (13) becomes a heater, the second adsorption heat exchange (14) becomes a cooler, and the four-way switching valve (25) remains in the second state, the second air heat exchanger ( 12) becomes the condenser, and the first air heat exchanger (11) becomes the evaporator.
- the air-conditioning apparatus uses two adsorption heat exchangers (first adsorption heat exchange) in an example in which a refrigerant circuit (20) and a cold / hot water circuit (40) are used in combination.
- the refrigerant circuit (20) is connected to the heat exchanger (13) and the second adsorption heat exchanger (14)), and two air heat exchangers (the first air heat exchanger (11) and the second air heat exchanger (12)) And a cold and hot water circuit (40).
- the first air heat exchanger (11) constitutes an outdoor heat exchanger (43), the second air heat exchanger (12), the first adsorption heat exchanger (13), and the second adsorption heat exchanger (13).
- Indoor heat exchange (24X44) is constituted by the heat exchanger (14).
- the refrigerant circuit (20) includes a compressor (21), a first adsorption heat exchanger (13), an expansion valve (23) as an expansion mechanism, and a second adsorption heat exchange (14). And a four-way switching valve (25) as a disconnecting structure.
- the discharge side of the compressor (21) is connected to the first port (P1) of the four-way switching valve (25).
- the second port (P2) of the four-way switching valve (25) is connected to the first adsorption heat exchange (13), and the first adsorption heat exchange (13) has an expansion valve (23).
- the second adsorption heat exchange (14) are connected in series in this order.
- the second adsorption heat exchange (14) is connected to the third port (P3) of the four-way switching valve (25), and the fourth port (P4) of the four-way switching valve (25) is on the suction side of the compressor (21). It is connected to the.
- the four-way switching valve (25) is in a first state in which the first port (P1) communicates with the second port (P2), and the third port (P3) communicates with the fourth port (P4). (Refer to the solid lines in Fig. 29 (B) and Fig. 30 (B)) and the first port (P1) and the third port KP3), and the second port (P2) and the fourth port KP4).
- the state can be switched to the second state (see the solid lines in FIGS. 29A and 30A).
- the cold / hot water circuit (40) includes a hot air source (41), a cold water source (42), and a first air heat exchanger (11) and a second air heat exchanger (12 ). Further, the cold / hot water circuit (40) switches the flow direction of the cold / hot water so that hot water flows in one of the first air heat exchange ai) and the second air heat exchange (12) and cold water flows in the other.
- the three-way valve (A1) connected to one end of the first air heat exchanger ai), the three-way valve (A2) connected to the other end, and one end of the second air heat exchanger (12) It has a three-way valve (Bl) connected to it and a three-way valve (B2) connected to the other end.
- the hot water source (41) has a three-way valve (A1) and a three-way valve (B1) connected in parallel at respective hot water inflow ports (Pil), and the cold water source (42) has a three-way valve ( A1) and three-way valve (B1) are connected in parallel at their respective chilled water inflow ports (Pi2).
- a three-way valve (A2) and a three-way valve (B2) are connected to the hot water source (41) in parallel at respective hot water outflow ports (Pol), and the three-way valve (42) is connected to the cold water source (42).
- A2) and three-way valve (B2) are connected in parallel at each chilled water outlet port (Po2).
- the first operation in FIG. 29 (A) and the second operation in FIG. 29 (B) are alternately performed.
- the four-way switching valve (25) switches to the second state, so that the second adsorption heat exchange (14) becomes a condenser and the first adsorption heat exchange (13) becomes an evaporator.
- the port indicated by the solid line in FIG. 29A is opened, and the port indicated by the broken line is closed.
- the first air heat exchange (11) becomes a heater and the second air heat exchange (12) becomes a cooler.
- the four-way switching valve (25) is switched to the first state, so that the first adsorption heat exchange (13) becomes a condenser, and the second adsorption heat exchange (13) becomes a condenser. Since 14) becomes an evaporator and the state of each three-way valve (A1-D2) does not change, the first air heat exchange (11) becomes a heater and the second air heat exchange (12) becomes a cooler. It becomes.
- the first operation in FIG. 30 (A) and the second operation in FIG. 30 (B) are alternately performed.
- the four-way switching valve (25) switches to the second state, so that the second adsorption heat exchange (14) becomes a condenser and the first adsorption heat exchange (13) becomes an evaporator.
- the port indicated by the solid line in Fig. 30 (A) is opened and the port indicated by the broken line is closed at each three-way valve (A1-D2), so that the second air heat exchange (12) And the first air heat exchange (11) becomes the cooler
- the four-way switching valve (25) is switched to the first state, so that the first adsorption heat exchange (13) becomes a condenser and the second adsorption heat exchange (13) Since 14) becomes an evaporator and the state of each three-way valve (A1-D2) does not change, the second air heat exchange (12) becomes a heater and the first air heat exchange (11) becomes a cooler. It becomes.
- the air conditioner (10) according to the thirteenth embodiment has the same refrigerant circuit configuration as the fourteenth embodiment. Therefore, the description of the specific configuration is omitted.
- This device is configured as a ventilation fan type that balances the amount of air supply to the room and the amount of exhaust air to the outside.
- the air conditioner (10) is a heat exchange element that exchanges heat between the first air and the second air.
- the heat exchanging element (50) is configured by a rotatable rotary sensible heat exchanger that is disposed so as to straddle the first air circulation passage and the second air circulation passage.
- the difference between the cooling operation and the heating operation is that the first air passing through the heat exchange element (50) passes through the adsorption heat exchanger (13, 14).
- the second air passing through the heat exchange element (50) is the air for regeneration before passing through the adsorption heat exchanger (13, 14).
- the first air and the second air exchange heat the first air is cooled, and the second air is heated.
- the first air becomes outdoor air (OA) and the second air becomes indoor air (RA) .
- RA indoor air
- OA outdoor air
- FIG. 33 is a conceptual diagram showing the installation state of this air conditioner (10) and the air flow during operation.
- Fig. 34 is a plan view of the air conditioner (A), and a left side view of the air conditioner (B).
- Figures (C) and (C) are the right side structural diagrams.
- this air conditioner (10) two air heat exchangers (l 1,12) and two adsorption heat exchangers (13,14) are housed in a single casing (150). It was installed in The circuit configuration diagrams in FIGS. 31 and 32 and the installation diagram in FIG. 33 show a rotary sensible heat exchange as the heat exchange element (50).
- the element (50) As the element (50), a sensible heat exchanger (a so-called cross-flow sensible heat exchanger) in which the first air and the second air flow crossing each other is illustrated.
- the heat exchange element (50) may be either a rotary type or a cross-flow type.
- the casing (150) of the air conditioner (10) is formed in a square box shape.
- One of a pair of end surfaces of the casing (150) (the upper end surface in the figure) has a first suction port (151) for taking a part of the outdoor air (OA) into the casing (150), and a room air (RA).
- a first suction port (151) for taking a part of the outdoor air (OA) into the casing (150), and a room air (RA).
- a third inlet (153) to take another part of the outdoor air (OA) into the casing (150).
- a fourth suction port (154) for taking another part of the room air (RA) into the casing (150).
- the other of the pair of end faces has a first outlet (155) for supplying supply air (SA) into the room and a second outlet (155) for discharging exhaust air (EA) to the outside of the room.
- An outlet (156) is provided.
- First of these Suction port (151), second suction port (152), third suction port (153), fourth suction port (154), first outlet (155), and second outlet (156) have ducts respectively. Are connected.
- a heat exchange chamber 160 in which the air heat exchange (11, 12), adsorption heat exchange (13, 14), and heat exchange element (50) are arranged.
- a machine room (170) in which machine parts such as fans (191, 192) and a compressor (21) are arranged.
- the heat exchange chamber (160) is divided into three parts in the left and right direction of the casing (150) in the figure, and the adsorption heat exchange chambers (161, 162) and the heat exchange element chamber (165) are provided at the center.
- a first air heat exchange chamber (163) and a second air heat exchange chamber (164) are formed on both sides. Further, the heat exchange chamber (160) is divided into two stages in the height direction (left and right directions in FIGS. 34 (B) and (C)).
- the heat exchange element chamber (165) and the adsorption heat exchange chambers (161, 162) are in the front-rear direction of the casing (150).
- the adsorption heat exchange chamber (161, 162) is further divided into two in the front-rear direction of the casing (150), and the first adsorption heat exchanger chamber (161) and the second adsorption heat exchanger chamber (162) are divided. It is configured.
- the heat exchange element chamber (165) is formed at a lower part in the height direction in the casing (150), and the heat exchange element (50) is arranged therein.
- the space above the heat exchange element room (165) is a closed space.
- the first air heat exchanger chamber (163) and the second air heat exchanger chamber (164) are formed at an upper portion in the height direction in the casing (150), and are provided in the first air heat exchanger chamber (163). ), A second air passage (167) is formed in a space below the second air heat exchanger chamber (164).
- the first air heat exchanger (11) is located in the first air heat exchanger chamber (163), and the second air heat exchanger (12) is located in the second air heat exchanger (164).
- the adsorption heat exchanger chambers (161, 162) are each divided into two stages vertically in the height direction, as described above.
- the first adsorption heat exchange (13) is located between the upper and lower stages of the first adsorption heat exchange chamber (161)
- the second adsorption heat exchanger (14) is the second adsorption heat exchanger chamber (162). It is located between the upper and lower tiers.
- the first air heat exchanger chamber (163) communicates with the first suction port (151).
- the second air heat exchange chamber (164) communicates with the second suction port (152).
- the first air passage (166) It communicates with the third suction port (153) via the heat exchange element (50) of the element chamber (165).
- the second air passage (167) communicates with the fourth suction port (154) via the heat exchange element (50) of the heat exchange element chamber (165).
- the first air heat exchanger chamber (163) has a first damper between the first adsorption heat exchanger chamber (161).
- the first air passage (166) is provided with a third damper (183) between the first adsorption heat exchanger chamber (161) and the fourth damper (183) between the first air passage (166) and the second adsorption heat exchange chamber (162).
- a dambar (184) is provided.
- the second air heat exchanger chamber (164) is provided with a fifth damper (185) between the first adsorption heat exchanger chamber (161) and the second adsorption heat exchanger chamber (162). ) Are provided with a sixth damper (186).
- the second air passage (167) is provided with a seventh damper (187) between the first adsorption heat exchanger chamber (161) and an eighth damper between the second adsorption heat exchanger chamber (162). (188) is provided.
- a compressor (21) is arranged at the center, and a first fan (191) and a second fan (192) are arranged on both sides thereof. I have.
- the first fan (191) is in communication with the first outlet (155) and the second air heat exchange chamber (164).
- the second fan (192) communicates with the second outlet (156) and the first air heat exchange chamber (163).
- the first operation in FIG. 31 (A) and the second operation in FIG. 31 (B) are alternately performed.
- the first air heat exchanger (11) and the first adsorption heat exchanger (13) become condensers
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) It becomes an evaporator.
- the first damper (181), the fourth damper (184), the sixth damper (186), and the seventh damper (187) are opened, and the second damper (182), the third damper (183), and the 5 Damba (185) and 8th Damba (188) are closed.
- part of the room air (RA) taken into the second suction port (152) force casing (150) is passed through the second air heat exchanger (164) in the second air heat exchanger chamber (164). Cooled by passing through 12), it is supplied to the room from the first outlet (155) via the first fan (191). Further, the remainder of the room air (RA) taken into the fourth suction port (154) force casing (150) passes through the heat exchange element (50) and flows into the second air passage (167). After flowing into the first adsorption heat exchange chamber (161), the first adsorption heat exchange (13) is regenerated, and after flowing out to the first air heat exchange chamber (163), the second heat is exchanged via the second fan (192). The outlet (156) force is also discharged outside the room.
- the outdoor air (OA) that has passed through the first air heat exchange ai) is discharged outside as outdoor air (EA), and has passed through the second air heat exchange (12).
- Room air (RA) returns to the room as supply air (SA).
- the outdoor air (OA) which is the first air
- the indoor air (RA) is conversely converted to the outdoor air (OA). Heated.
- the outdoor air (OA) cooled by the heat exchange element (50) is dehumidified when passing through the second adsorption heat exchanger (14), and is supplied indoors.
- the indoor air (RA) heated by the heat exchange element (50) regenerates the adsorbent when passing through the first adsorption heat exchange (13) and is discharged outside the room.
- indoor latent heat treatment is mainly performed in the second adsorption heat exchanger (14), and indoor sensible heat treatment is mainly performed in the second air heat exchanger (12). That is, a part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the second adsorption heat exchange (14), and a part of the indoor air (RA) is supplied to the second air heat exchange. By passing through (12), it is cooled mainly and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- OA outdoor air
- RA indoor air
- the first air heat exchange ai) and the second adsorption heat exchange (14) become a condenser, and the second air heat exchanger (12) and the first adsorption heat exchanger ( 13) becomes the evaporator.
- the second dambar (182), 3rd dambar (183), 5th dambar (185), 8th dambar (188) open, 1st dambar (181), 4th dambar (184), 6th dambar (186), 7 Damba (187) is closed.
- part of the room air (RA) taken into the second suction port (152) force casing (150) is supplied to the second air heat exchanger (164) in the second air heat exchanger chamber (164). Cooled by passing through 12), it is supplied to the room from the first outlet (155) via the first fan (191). Further, the remainder of the room air (RA) taken into the fourth suction port (154) force casing (150) passes through the heat exchange element (50) and flows into the second air passage (167). After flowing into the second adsorption heat exchange chamber (162) to regenerate the second adsorption heat exchanger (14) and flowing out to the first air heat exchanger chamber (163), it flows through the second fan (192). The second outlet (156) force is also discharged outside the room.
- the outdoor air (OA) that has passed through the first air heat exchange ai) is discharged outside as outdoor air (EA), and has passed through the second air heat exchange (12).
- Room air (RA) returns to the room as supply air (SA).
- the outdoor air (OA) which is the first air
- the indoor air (RA) is conversely converted to the outdoor air (OA). Heated.
- the outdoor air (OA) cooled by the heat exchange element (50) is dehumidified when passing through the first adsorption heat exchanger (13), and is supplied indoors.
- the room air (RA) heated by the heat exchange element (50) regenerates the adsorbent when passing through the second adsorption heat exchanger (14) and is discharged outside the room.
- latent heat treatment in the room is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment in the room is mainly performed in the second air heat exchanger (12).
- part of the outdoor air (OA) is mainly dehumidified and supplied to the room by passing through the first adsorption heat exchange (13), and part of the indoor air (RA) is supplied to the second air heat exchange.
- OA outdoor air
- RA indoor air
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also in this case, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases.
- the first operation in FIG. 32 (A) and the second operation in FIG. 32 (B) are alternately performed.
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) become condensers, and the first air heat exchange ai) and the first adsorption heat exchange (13) become the evaporator.
- the first damper (181), the fourth damper (184), the sixth damper (186), and the seventh damper (187) are opened, and the second damper (182), the third damper (183), and the 5 Damba (185) and 8th Damba (188) are closed.
- part of the room air (RA) taken into the second suction port (152) force casing (150) is supplied to the second air heat exchanger (164) in the second air heat exchanger chamber (164). After passing through 12), the heat is heated and supplied to the room from the first outlet (155) via the first fan (191). Further, the remainder of the room air (RA) taken into the fourth suction port (154) force casing (150) passes through the heat exchange element (50) and flows into the second air passage (167). The water flows into the first adsorption heat exchanger (161) to give moisture to the first adsorption heat exchanger (13), flows out to the first air heat exchanger chamber (163), and then flows through the second fan (192). The second outlet (156) force is also discharged outside the room.
- the outdoor air (OA) that has passed through the first air heat exchange ai) is discharged outside as outdoor air (EA), and has passed through the second air heat exchange (12).
- Supply by indoor air (RA) Return indoors as air (SA).
- the outdoor air (OA), which is the second air is heated by the indoor air (RA), which is the first air, and the indoor air (RA) is conversely converted to the outdoor air (OA). Cooled.
- the outdoor air (OA) heated by the heat exchange element (50) is humidified when passing through the second adsorption heat exchanger (14), and is supplied to the room.
- the indoor air (RA) cooled by the heat exchange element (50) gives moisture to the adsorbent when passing through the first adsorption heat exchanger (13) and is discharged outside the room.
- indoor latent heat treatment is mainly performed in the second adsorption heat exchanger (14), and indoor sensible heat treatment is mainly performed in the second air heat exchanger (12). That is, part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the second adsorption heat exchange (14), and part of the indoor air (RA) is supplied to the second air heat exchange (14). By passing through 12), it is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the second air heat exchange (12) and the first adsorption heat exchange (13) become condensers, and the first air heat exchanger (11) and the second adsorption heat
- the exchanger (14) becomes an evaporator.
- the 2nd dambar (182), 3rd dambar (183), 5th dambar (185) and 8th dambar (188) are opened, and 1st dambar (181), 4th dambar (184), 6th dambar (186), 7th dambar (187) is closed.
- part of the room air (RA) taken into the second suction port (152) force casing (150) is supplied to the second air heat exchanger (164) in the second air heat exchanger chamber (164). After passing through 12), the heat is heated and supplied to the room from the first outlet (155) via the first fan (191). Further, the remainder of the room air (RA) taken into the fourth suction port (154) force casing (150) passes through the heat exchange element (50) and flows into the second air passage (167).
- Second adsorption heat exchanger (162) Flows into the second adsorption heat exchanger (14) to give moisture to the second adsorption heat exchanger (14), flows out to the first air heat exchanger chamber (163), and then passes through the second fan (192) to the second outlet (156). Is discharged to
- the outdoor air (OA) that passed through the first air heat exchange ai) was discharged outside as outdoor air (EA), and passed through the second air heat exchange (12).
- Room air (RA) returns to the room as supply air (SA).
- the outdoor air (OA) which is the second air
- the indoor air (RA) is conversely converted to the outdoor air (OA). Cooled.
- the outdoor air (OA) heated by the heat exchange element (50) is humidified when passing through the first adsorption heat exchanger (13), and is supplied to the room.
- the indoor air (RA) cooled by the heat exchange element (50) gives moisture to the adsorbent when passing through the second adsorption heat exchanger (14) and is discharged outside the room.
- latent heat treatment in the room is mainly performed in the first adsorption heat exchanger (13), and sensible heat treatment in the room is mainly performed in the second air heat exchanger (12). That is, a part of the outdoor air (OA) is mainly humidified and supplied to the room by passing through the first adsorption heat exchange (13), and a part of the indoor air (RA) is supplied to the second air heat exchange (13). By passing through 12), it is mainly heated and returns to the room. This makes it possible to efficiently heat and humidify the room. In addition, part of the indoor air (RA) gives moisture to the adsorbent when passing through the second adsorption heat exchanger (14).
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the present invention can also be applied to the ventilation fan type air conditioner (10), and in this case, the same effects as those of the above embodiments can be obtained.
- the air conditioner (10) in Fig. 35 includes an outdoor unit (110) and an indoor unit (120), and both units (110, 120) are connected by a communication pipe (not shown) to form the refrigerant circuit (20). ) It is made.
- the outdoor unit (no) is provided with a first air heat exchanger (11), a first adsorption heat exchanger (13), a second adsorption heat exchanger (14), and a heat exchange element (50).
- the unit (120) is provided with a second air heat exchange (12). Even with such a configuration, the same operation as that described with reference to FIGS. 31 to 34 can be performed, and the same effect can be obtained.
- the heat exchange element (50) is not limited to sensible heat exchange, but may be total heat exchange.
- Total heat exchange is a heat exchanger that can perform latent heat exchange that can be achieved only by sensible heat exchange between the first air and the second air. Therefore, when the humidity of the first air is higher than the humidity of the second air, the moisture of the first air is removed to the second air by the total heat exchanger. Therefore, when the first air is supplied into the room at the time of dehumidification, the dehumidification capacity of the air conditioner (10) can be increased. When the humidity of the first air is higher than the humidity of the second air, the moisture of the first air is provided to the second air by the total heat exchanger. Therefore, when the second air is supplied into the room at the time of humidification, the humidification capacity of the air conditioner (10) can be increased.
- the air conditioner (10) according to Embodiment 14 has the same configuration of the refrigerant circuit as Embodiment 3, as shown in FIGS. Therefore, the description of the specific configuration is omitted.
- This device is configured as an exhaust fan type.
- the air conditioner (10) includes a latent heat treatment element (60) for performing latent heat treatment on the adsorption air and the regeneration air.
- the latent heat treatment element (60) is constituted by a rotatable suction rotor (60) which is arranged across a flow passage of the suction air and a flow passage of the regeneration air.
- the adsorption rotor (50) is located on the upstream side of the adsorption heat exchanger (13, 14) in the flow path of the adsorption air, and is connected to the adsorption heat exchanger (13, 14) in the flow path of the regeneration air. It is located downstream.
- the adsorption rotor (50) is made up of a gas-permeable disc-shaped base material such as a honeycomb structure, and an adsorbent carried on the base material.
- the adsorbent adsorbs and desorbs moisture. Latent heat treatment of air can be performed.
- the adsorbent used for this adsorption rotor (50) is adsorption heat exchange.
- the same material as the adsorbent of the vessel (13, 14) can be used.
- the air for adsorption passing through the adsorption rotor (60) is an adsorption heat exchanger.
- the room air (13, 14) is the room air (RA) before passing through one of the adsorption heat exchangers (13, 14), and the regeneration air passing through the adsorption rotor (60) is the room air after passing through the other. (RA).
- the adsorption air and the regeneration air are compared in the adsorption rotor (60)
- the adsorption air is at a low temperature and the relative humidity is high. Since the relative humidity is low, the adsorption air is dehumidified and the regeneration air is humidified.
- the latent heat treatment element (60) uses two adsorption elements (a first adsorption element and a second adsorption element) instead of the adsorption rotor, and adsorbs the moisture of the air for adsorption by the first adsorption element.
- the air is reproduced so that the operation of regenerating the second adsorption element with the regeneration air and the operation of regenerating the first adsorption element with the regeneration air and simultaneously adsorbing the moisture of the adsorption air with the second adsorption element are performed alternately.
- the flow direction of the refrigerant in the refrigerant circuit may be switched.
- Each of the two adsorption elements may be provided with a cooling passage through which cooling air for absorbing heat of adsorption at the time of adsorbing moisture (adsorption cooling element).
- the first air heat exchanger (11) and the first adsorption heat exchanger (13) become condensers, and the second adsorption heat exchange (14) and the second air heat exchange (12). Becomes an evaporator.
- indoor latent heat treatment is performed in the second adsorption heat exchanger (14), and indoor sensible heat treatment is performed in the second air heat exchanger (12).
- the indoor air (RA) is dehumidified (latent heat treatment) due to moisture being adsorbed by the adsorbent when a part (air for adsorption) passes through the second adsorption heat exchanger (14).
- the other part is cooled (sensible heat treatment) when passing through the second air heat exchanger (12), and returns to the room. By doing so, indoor cooling and dehumidification can be performed efficiently.
- the adsorbent is regenerated by passing another part (regeneration air) of the room air (RA).
- the outdoor air (OA) exchanges heat with the refrigerant when passing through the air heat exchanger (11), and is discharged outside as outdoor air (EA).
- the suction air having a low temperature and a high relative humidity is dehumidified, and the regeneration air having a high temperature and a low relative humidity is humidified.
- the air for adsorption is supplied to the room after being dehumidified in two stages by the adsorption rotor (60) and the second adsorption heat exchange (14).
- the regeneration air is regenerated twice by the first adsorption heat exchanger (13) and the adsorption rotor (60) and then discharged outside the room.
- the first air heat exchanger (11) and the second adsorption heat exchanger (14) become condensers, and the first air heat exchanger (13) and the second air heat exchanger (13) exchange heat.
- the vessel (12) becomes the evaporator.
- the latent heat treatment in the room is performed in the first adsorption heat exchange (13), and the sensible heat treatment in the room is performed in the second air heat exchange (12). That is, the indoor air (RA) is dehumidified (latent heat treatment) due to the adsorption of moisture by the adsorbent when a part (air for adsorption) passes through the first adsorption heat exchanger (13).
- the other part is cooled (sensible heat treatment) when passing through the second air heat exchanger (12), and returns to the room.
- the adsorbent is regenerated by passing another part of the room air (RA) (regeneration air).
- the outdoor air (OA) exchanges heat with the refrigerant when passing through the air heat exchanger (11), and is discharged outside as outdoor air (EA).
- the adsorption air having a low temperature and a high relative humidity is dehumidified, and regeneration air (RA) having a high temperature and a low relative humidity is humidified. Therefore, the adsorption air is supplied to the room after being dehumidified in two stages by the adsorption rotor (60) and the first adsorption heat exchange (13). The regeneration air is regenerated twice by the second adsorption heat exchanger (14) and the adsorption rotor (60) before being discharged outside the room.
- the indoor latent heat load can be continuously processed while the indoor sensible heat load is continuously processed. . Also at this time, the first operation and the second operation are switched at shorter intervals as the indoor latent heat load increases. As a result, when the latent heat load in the room is large, the switching frequency is increased to increase the dehumidification amount to increase the indoor comfort. On the contrary, when the indoor latent heat load is small, the switching frequency is increased. By reducing the amount of dehumidification, the amount of dehumidification can be reduced and energy saving can be improved.
- the second air heat exchanger (12) and the second adsorption heat exchanger (14) become condensers, and the first adsorption heat exchange (13) and the first air heat exchange ai) It becomes an evaporator.
- indoor latent heat treatment is performed in the second adsorption heat exchanger (14)
- indoor sensible heat treatment is performed in the second air heat exchanger (12). That is, the indoor air (RA) is humidified (latent heat treatment) by regenerating the adsorbent when a part (regeneration air) passes through the second adsorption heat exchanger (14), and returns to the room. Is heated (sensible heat treatment) when passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the first adsorption heat exchanger (13) moisture is given to the adsorbent by passing another part of the room air (RA) (air for adsorption).
- the outdoor air (OA) exchanges heat with the refrigerant when passing through the air heat exchange ai) and is discharged outside as outdoor air (EA).
- the regeneration air having a high temperature and a low relative humidity is humidified, and the adsorption air having a low temperature and a high relative humidity is dehumidified. Therefore, the regeneration air is humidified in two stages by the second adsorption heat exchange (14) and the adsorption rotor (60) before being supplied to the room. In addition, the adsorption air is deprived of water by the adsorbent twice by the adsorption rotor (60) and the first adsorption heat exchange (13), and is discharged out of the power chamber.
- the second air heat exchanger (12) and the first adsorption heat exchanger (13) become condensers, and the second adsorption heat exchange (14) and the first air heat exchange ai ) Is the evaporator.
- the latent heat treatment in the room is performed in the first adsorption heat exchange (13), and the sensible heat treatment in the room is performed in the second air heat exchange (12). That is, the indoor air (RA) is humidified (latent heat treatment) by regenerating the adsorbent when a part (air for regeneration) passes through the first adsorption heat exchanger (13), and returns to the room, The other part is heated (sensible heat treatment) when passing through the second air heat exchange (12) and returns to the room. This makes it possible to efficiently heat and humidify the room.
- the second adsorption heat exchanger 13
- moisture is given to the adsorbent by passing another part of the room air (RA) (air for adsorption).
- the outdoor air (OA) exchanges heat with the refrigerant when passing through the air heat exchange ai) and is discharged outside as outdoor air (EA).
- EA outdoor air
- the adsorption rotor 60
- regeneration air having a high temperature and a low relative humidity is humidified
- adsorption air having a low temperature and a high relative humidity is dehumidified. Therefore, the regeneration air is supplied to the room after being humidified in two stages by the first adsorption heat exchange (13) and the adsorption rotor (60).
- the adsorption air is deprived of moisture by the adsorbent twice by the adsorption rotor (60) and the second adsorption heat exchange (14), and is discharged out of the power chamber.
- the indoor latent heat load is also continuously processed while the indoor sensible heat load is continuously processed. Also at this time, the first operation and the second operation are switched at time intervals according to the latent heat load in the room.
- the adsorption air (room air (RA)) is dehumidified in two stages by the adsorption rotor (60) and the adsorption heat exchangers (13, 14).
- the dehumidifying ability of the device can be increased.
- the regeneration air (room air (RA)) is humidified in two stages by the adsorption heat exchangers (13, 14) and the adsorption rotor (60), so the humidification capacity of the device is increased.
- the present invention may be configured as follows in the above embodiment.
- one or two air heat exchangers (11, 12) and adsorption heat exchangers (13, 14) are used.
- at least one heat exchanger is constituted by an adsorption heat exchanger having an adsorbent supported on its surface.
- Embodiment 8 to Embodiment 10 using the cold / hot water circuit (40) assuming that latent heat treatment is prioritized, the adsorption heat exchanger (13 , 14) and an air heat exchanger (11, 12) on the downstream side. ) May be arranged, and the adsorption heat exchange (13, 14) may be arranged on the downstream side.
- the present invention is useful for an air conditioner that separately processes a latent heat load and a sensible heat load in a room.
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Abstract
Description
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Priority Applications (3)
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AU2004280429A AU2004280429B2 (en) | 2003-10-09 | 2004-10-08 | Air conditioning apparatus |
US10/574,896 US7905108B2 (en) | 2003-10-09 | 2004-10-08 | Air conditioning apparatus |
EP04792212A EP1688674A4 (en) | 2003-10-09 | 2004-10-08 | AIR CONDITIONING |
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JP2003-351195 | 2003-10-09 | ||
JP2003351195A JP3668785B2 (ja) | 2003-10-09 | 2003-10-09 | 空気調和装置 |
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US (1) | US7905108B2 (ja) |
EP (1) | EP1688674A4 (ja) |
JP (1) | JP3668785B2 (ja) |
KR (1) | KR100708289B1 (ja) |
CN (1) | CN100432553C (ja) |
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- 2004-10-08 EP EP04792212A patent/EP1688674A4/en not_active Withdrawn
- 2004-10-08 AU AU2004280429A patent/AU2004280429B2/en not_active Ceased
- 2004-10-08 KR KR1020067006978A patent/KR100708289B1/ko not_active IP Right Cessation
- 2004-10-08 US US10/574,896 patent/US7905108B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
EP1688674A1 (en) | 2006-08-09 |
EP1688674A4 (en) | 2010-10-27 |
JP3668785B2 (ja) | 2005-07-06 |
AU2004280429B2 (en) | 2008-05-08 |
JP2005114291A (ja) | 2005-04-28 |
KR20060085691A (ko) | 2006-07-27 |
KR100708289B1 (ko) | 2007-04-16 |
US20070039343A1 (en) | 2007-02-22 |
AU2004280429A1 (en) | 2005-04-21 |
CN100432553C (zh) | 2008-11-12 |
US7905108B2 (en) | 2011-03-15 |
CN1864033A (zh) | 2006-11-15 |
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