EP1746355B1 - Air conditioner system - Google Patents

Air conditioner system Download PDF

Info

Publication number
EP1746355B1
EP1746355B1 EP05736755.9A EP05736755A EP1746355B1 EP 1746355 B1 EP1746355 B1 EP 1746355B1 EP 05736755 A EP05736755 A EP 05736755A EP 1746355 B1 EP1746355 B1 EP 1746355B1
Authority
EP
European Patent Office
Prior art keywords
air
heating medium
room
heating
conditioning system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05736755.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1746355A4 (en
EP1746355A1 (en
Inventor
Manabu; c/o Kanaoka Factory Sakai Plant YOSHIMI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1746355A1 publication Critical patent/EP1746355A1/en
Publication of EP1746355A4 publication Critical patent/EP1746355A4/en
Application granted granted Critical
Publication of EP1746355B1 publication Critical patent/EP1746355B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F3/001—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 in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • 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
    • F24F3/1417—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • 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
    • F24F2003/1435—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 comprising semi-permeable membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1068—Rotary wheel comprising one rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1084—Rotary wheel comprising two flow rotor segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide

Definitions

  • the present invention relates to an air conditioning system. More specifically, the present disclosure relates to an air conditioning system capable of heating the room.
  • an air conditioning system capable of heating the room
  • conventionally known is a system configured by connecting room heating devices such as a radiator and a fan convector to a heat source unit having a vapor compression type refrigerant circuit (for example, see Japanese Patent Application Publication No. 2003-50050 , Japanese Patent Application Publication No. 2003-172523 , and Japanese Patent Application Publication No. 2003-50035 .
  • Such an air conditioning system heats the room by heating a floor and indoor air.
  • a unit having a refrigerant circuit that uses CO2 as the refrigerant is used in some cases.
  • the refrigerant temperature on a discharge side of a compressor can be increased, and therefore, for example, when an air conditioning system is configured such that the heat of a heating medium heated in a utilization side heat exchanger in the heat source unit is released into the room by the room heating devices, the temperature level that can be used for heating the room in the room heating devices can be increased. This will achieve comfortable room heating.
  • JP 62-91134 U discloses a heating system capable of heating a room, comprising a heat source unit and a utilisation side radiator, the heat source unit being capable of heating water that is used for heating the room in the radiator, and a water circuit having at least one under floor heating device configured to release the heat of water heated in the utilisation side heat exchanger in to the room, and an outdoor air heating device configured to heat the ventilation air with the heat of the water heated in the heat exchanger, the water circuit being configured to circulate the water between the room heating device, the outdoor air heating device, and the utilisation side heat exchanger.
  • An air conditioning system is an air conditioning system capable of heating a room, comprising: a heat source unit having a vapor compression type refrigerant circuit including a compressor, a heat source side heat exchanger, an expansion mechanism, and a utilization side heat exchanger, the heat source unit being capable of heating a heating medium that is used for heating the room in the utilization side heat exchanger; an air supply device configured to supply an outdoor air to a room as a ventilation air; and a heating medium circuit having at least one room heating device configured to release the heat of a heating medium heated in the utilization side heat exchanger into the room, and an outdoor air heating device, configured to heat the ventilation air with the heat of the heating medium heated in the utilization side heat exchanger, the heating medium circuit being configured to circulate the heating medium between the room heating device and each of the outdoor air heating device and the utilization side heat exchanger, wherein the air conditioning system further comprises a room heating device and/or an outdoor air heating device arranged for refrigerant that is arranged to flow through the refrigerant circuit to flow
  • This ventilation heat load will be treated by the room heating devices after the ventilation air is supplied to the room and mixed with indoor air, which consequently causes the room occupant to feel discomfort due to the supply of low temperature ventilation air (hereinafter referred to as a cold draft).
  • a cold draft low temperature ventilation air
  • improved heat insulation properties can reduce the total amount of heat load; however, the ventilation heat load necessary for maintenance of IAQ cannot be reduced. Therefore, the proportion of the ventilation heat load to the total amount of heat load to be treated in the air conditioning system is relatively large. Accordingly, it is desired to prevent a cold draft while treating the ventilation heat load in an air conditioning system capable of heating the room.
  • the temperature level that can be used in the room heating devices can be increased, however, the temperature difference between an inlet and an outlet of the utilization side heat exchanger will be reduced, resulting in a reduced coefficient of performance (hereinafter referred to as COP) of the heat source unit. Accordingly, it is desired to improve the COP in an air conditioning system capable of heating the room, which uses a heat source unit that uses CO2 as the refrigerant.
  • an advantage achieved by embodiments of the present invention is to prevent, in an air conditioning system capable of heating the room, a cold draft due to the ventilation air that is supplied to the room for ventilation in the room.
  • the high temperature and high pressure refrigerant compressed in and discharged from the compressor heats the heating medium in the utilization side heat exchanger.
  • the heating medium heated in this utilization side heat exchanger is sent to at least one room heating device, and used to heat the room by releasing the heat of the heating medium into the room. Also, this heating medium is sent to the outdoor air heating device, and used for heating the outdoor air that is supplied to the room as the ventilation air by the air supply device. Then, the heating medium used in the room heating device and by the outdoor air heating device respectively for heating the room and for heating the ventilation air is again returned to the utilization side heat exchanger.
  • the refrigerant cooled in the utilization side heat exchanger by heating the heating medium is decompressed by the expansion mechanism, heated in the heat source side heat exchanger, converted into a low pressure refrigerant, and then again, sucked into the compressor.
  • the room heating device includes, for example, a radiator, a fan convector, and a floor heating device.
  • this air conditioning system is provided with the outdoor air heating device, the ventilation air can be first heated and then supplied to the room, when heating the room. This will enable prevention of a cold draft due to the ventilation air that is supplied to the room to ventilate the room, therefore improving the comfort of the room.
  • An air conditioning system is the air conditioning system according to the present invention, in which the heating medium circuit is connected to the utilization side heat exchanger such that the heating medium heated in the utilization side heat exchanger is sequentially supplied to the room heating devices and the outdoor air heating device.
  • the heating medium circuit is connected to the utilization side heat exchanger such that the heating medium heated in the utilization side heat exchanger is sequentially supplied to the room heating devices and the outdoor air heating device. Consequently, the room heating devices can use the heat of a high temperature heating medium that just has been heated in the utilization side heat exchanger, and the outdoor air heating device can use the heat of the heating medium cooled by releasing its heat into the room in the room heating device.
  • the ventilation air that is supplied to the room by the air supply device has a lower temperature than the indoor air, and it is possible to heat the ventilation air by using the heating medium cooled by releasing its heat into the room by the room heating devices.
  • the heating medium used for heating the ventilation air that is supplied to the room by the outdoor air heating device is further cooled by heating the ventilation air, and then returned to the utilization side heat exchanger.
  • the heating medium cooled by releasing its heat in the room heating devices is supplied to the outdoor air heating device, and used to heat the ventilation air that is supplied to the room. Consequently, the temperature difference between the inlet and the outlet of the utilization side heat exchanger can be increased, therefore improving the COP of the heat source unit.
  • An air conditioning system is the air conditioning system according to the first preferred embodiment, in which the heating medium circuit further includes at least one bypass heating medium circuit that bypasses the room heating devices and the outdoor air heating device.
  • the heating medium circuit includes the bypass heating medium circuit that bypasses at least one of the room heating devices and the outdoor air heating device, so that the heating medium can be supplied to only some of the room heating devices and the outdoor air heating device, according to need.
  • the bypass heating medium circuit may be provided to each of the room heating devices and the outdoor air heating device, or to only some of these devices. Alternatively, some of the room heating devices and the outdoor air heating device may be collected together such that these devices are bypassed together.
  • An air conditioning system is the air conditioning system according to the second preferred embodiment, in which the bypass heating medium circuit includes a heating medium flow control mechanism.
  • the bypass heating medium circuit includes the heating medium flow control mechanism, so that it is possible to control the flow of the heating medium that is supplied to at least some of the room heating devices and the outdoor air heating device to which the bypass heating medium circuit is provided.
  • the heating medium flow control mechanism herein refers to a solenoid valve that blocks a heating medium that flows through the bypass heating medium circuit according to need, a motor operated valve that controls the flow of a heating medium that flows through the bypass heating medium circuit, and the like.
  • An air conditioning system is the air conditioning system according to the invention, in which the heating medium circuit is constituted by a plurality of divided heating medium circuits that independently circulate the heating medium between at least one of the room heating devices and the outdoor air heating device, and the utilization side heat exchanger.
  • the heating medium circuit is constituted by a plurality of divided heating medium circuits that independently circulate the heating medium between at least one of the room heating devices and the outdoor air heating device, and the utilization side heat exchanger, so that it is possible to supply the heating medium to only some of the room heating devices and the outdoor air heating device, according to need.
  • the divided heating medium circuits "independently circulate the heating medium between at least one of the room heating devices and the outdoor air heating device, and the utilization side heat exchanger," so that the divided heating medium circuits may be provided so as to circulate the heating medium through each of the room heating devices and the outdoor air heating device, or so as to circulate the heating medium through some of the room heating devices and the outdoor air heating device together.
  • An air conditioning system is the air conditioning system according to the fourth preferred embodiment, in which the utilization side heat exchanger is constituted by a plurality of divided utilization side heat exchangers divided to correspond to the plurality of divided heating medium circuits.
  • An air conditioning system is the air conditioning system of the fifth preferred embodiment, in which the heat source unit further includes at least one bypass refrigerant circuit that bypasses the plurality of divided utilization side heat exchangers.
  • the heat source unit further includes at least one bypass refrigerant circuit that bypasses the plurality of divided utilization side heat exchangers, so that it is possible to supply the refrigerant to only some of the plurality of divided utilization side heat exchangers, according to need.
  • the bypass refrigerant circuit may be provided to each of the plurality of divided utilization side heat exchangers, or to some of the circuits. Alternatively, some of the plurality of divided utilization side heat exchangers can be collected together such that these heat exchangers are bypassed together.
  • An air conditioning system is the air conditioning system according to the sixth preferred embodiment, in which the bypass refrigerant circuit includes a refrigerant flow control mechanism.
  • the bypass refrigerant circuit includes the refrigerant flow control mechanism, so that it is possible to control the flow of the refrigerant that is supplied to at least some of the plurality of divided utilization side heat exchangers to which the bypass refrigerant circuit is provided.
  • the refrigerant flow control mechanism herein refers to a solenoid valve that blocks the refrigerant that flows through the bypass refrigerant circuit according to need, a motor operated valve that controls the flow of the refrigerant that flows through the bypass refrigerant circuit, and the like.
  • An air conditioning system is the air conditioning system according to any one of the fourth to seventh preferred embodiments, in which the plurality of divided heating medium circuits are connected to the utilization side heat exchanger such that the temperature of the heating medium that is supplied to the outdoor air heating device is equal to or lower than the temperature of the heating medium used in the room heating devices.
  • the plurality of divided heating medium circuits are connected to the utilization side heat exchanger such that the temperature of the heating medium that is supplied to the outdoor air heating device is equal to or lower than the temperature of the heating medium used in the room heating devices. Accordingly, the room heating devices can use the heat of a high temperature heating medium that just has been heated in the utilization side heat exchanger, and the outdoor air heating device can use the heat of the heating medium whose temperature is equal to or lower than the temperature of the heating medium used in the room heating devices.
  • the ventilation air that is supplied to the room by the air supply device has a lower temperature than the indoor air, so that it is possible to heat the ventilation air by using the heating medium whose temperature is lower than the temperature of the heating medium cooled by releasing its heat into the room in the room heating devices. Then, the heating medium used by the outdoor air heating device for heating the ventilation air that is supplied to the room is further cooled by heating the ventilation air, and then returned to the utilization side heat exchanger.
  • the heating medium cooled by releasing its heat in the room heating devices is supplied to the outdoor air heating device, and used to heat the ventilation air to be supplied to the room, so that it will be possible to increase the temperature difference between the inlet and the outlet of the utilization side heat exchanger, therefore improving the COP of the heat source unit.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to eighth preferred embodiments, in which some of the room heating devices and the outdoor air heating device use refrigerant that flows through the refrigerant circuit without flowing through the heating medium circuit.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to ninth preferred embodiments, in which the heating medium circuit includes a heating medium storage container.
  • the heating medium circuit includes the heating medium storage container, it is possible to prevent problems such as breakage of devices that constitute the heating medium circuit, which may occur when the heating medium circulating in the heating medium circuit expands in volume along with its change in temperature.
  • an increase in the amount of the heating medium in the heating medium circuit will increase the heat capacity in the entire heating medium circuit, and the temperature of the heating medium that is supplied to the room heating devices and the outdoor air heating device, and the temperature of the heating medium that is returned to the utilization side heat exchanger will become stable.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to tenth preferred embodiments, further comprising a humidifier that humidifies the ventilation air that is heated by the outdoor air heating device and supplied to the room.
  • the ventilation air that is heated by the outdoor air heating device and supplied to the room can be humidified. Therefore, even when the absolute humidity of the ventilation air is lower than the absolute humidity of the room air, it is possible to prevent the room from becoming dry due to the supply of ventilation air to the room.
  • An air conditioning system is the air conditioning system according to the eleventh preferred embodiment, in which the humidifier includes a moisture permeable film that allows moisture to permeate therethrough, and water that is supplied to the moisture permeable film is caused to contact with the ventilation air via the moisture permeable film, thereby enabling to humidify the ventilation air.
  • An air conditioning system is the air conditioning system according to the eleventh preferred embodiment, in which the humidifier includes moisture absorbing liquid capable of both absorbing moisture and desorbing the absorbed moisture through heating. Accordingly, it is possible to humidify the ventilation air by using the ventilation air to heat the moisture absorbing liquid in which moisture is absorbed and by desorbing moisture back into the ventilation air.
  • An air conditioning system is the air conditioning system according to the thirteenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by absorbing, into the moisture absorbing liquid, moisture in the exhaust air that is exhausted from the room to the outside.
  • moisture in the exhaust air that is exhausted from the room to the outside is used as moisture to be absorbed into the moisture absorbing liquid, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier.
  • An air conditioning system is the air conditioning system according to the thirteenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by absorbing moisture in an outdoor air different from the ventilation air into the moisture absorbing liquid.
  • moisture in the outdoor air different from the ventilation air is used as moisture to be absorbed into the moisture absorbing liquid, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier.
  • An air conditioning system is the air conditioning system according to the thirteenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by absorbing, into the moisture absorbing liquid, moisture in mixed air between the exhaust air that is exhausted from the room to the outside and the outdoor air different from the ventilation air.
  • moisture in the mixed air between the exhaust air that is exhausted from the room to the outside and an outdoor air different from the ventilation air is used as moisture to be absorbed into the moisture, absorbing liquid, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier.
  • An air conditioning system is the air conditioning system according to the eleventh preferred embodiment, in which the humidifier includes an adsorbent capable of both adsorbing moisture and desorbing the adsorbed moisture. Accordingly, it is possible to humidify the ventilation air by using the ventilation air to heat the adsorbent in which moisture is adsorbed and by desorbing moisture back into the ventilation air.
  • An air conditioning system is the air conditioning system according to the seventeenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by adsorbing, into the adsorbent, moisture in the exhaust air that is exhausted from the room to the outside.
  • moisture in the exhaust air that is exhausted from the room to the outside is used as moisture to be adsorbed into the adsorbent, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier.
  • An air conditioning system is the air conditioning system according to the seventeenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by adsorbing, into the adsorbent, moisture in the outdoor air different from the ventilation air.
  • moisture in the outdoor air different from the ventilation air is used as moisture to be adsorbed into the adsorbent, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier.
  • An air conditioning system is the air conditioning system according to the seventeenth preferred embodiment, in which the humidifier is used to humidify the ventilation air by adsorbing, into the adsorbent, moisture in the mixed air between the exhaust air that is exhausted from the room to the outside and an outdoor air different from the ventilation air.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to twentieth preferred embodiments, in which the heating medium that flows through the heating medium circuit is water.
  • the heating medium circuit can be configured at low cost.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to twentieth preferred embodiments, in which the heating medium flowing through the heating medium circuit is brine that does not freeze below 0 degrees C.
  • brine that does not freeze below 0 degrees C is used as the heating medium that flows through the heating medium circuit, so that the heating medium is prevented from freezing in the outdoor air heating device even during the low outdoor air temperature period, and the ventilation air that is supplied to the room by the air supply device will be more reliably heated by using the outdoor air heating device.
  • An air conditioning system is the air conditioning system according to the invention or any one of the first to twenty-second preferred embodiments, in which the refrigerant that flows through the refrigerant circuit is CO2.
  • CO2 is used as the refrigerant that flows through the vapor compression type refrigerant circuit in the heat source unit, so that the refrigerant temperature on the discharge side of the compressor can be increased, and the temperature level that can be used in the room heating devices can be increased. This will achieve comfortable room heating.
  • FIG. 1 is a schematic block diagram of an air conditioning system 101 according to the present invention.
  • the air conditioning system 101 is a system capable of heating the room by operating a vapor compression type refrigerating cycle.
  • the air conditioning system 101 mainly comprises a heat source unit 102, an air supply device 103, and a heating medium circuit 104.
  • the heat source unit 102 is installed outside, for example, is provided with a vapor compression type refrigerant circuit 120 that mainly includes a compressor 121, a heating medium - refrigerant heat exchanger 122 as a utilization side heat exchanger, an expansion mechanism 123, and a heat source side heat exchanger 124; and is capable of heating, in the heating medium - refrigerant heat exchanger 122, a heating medium that is used to heat the room in a building U.
  • a vapor compression type refrigerant circuit 120 that mainly includes a compressor 121, a heating medium - refrigerant heat exchanger 122 as a utilization side heat exchanger, an expansion mechanism 123, and a heat source side heat exchanger 124; and is capable of heating, in the heating medium - refrigerant heat exchanger 122, a heating medium that is used to heat the room in a building U.
  • the compressor 121 is a compressor that is rotatably driven by a drive mechanism such as an electric motor so as to compress a low pressure refrigerant and discharge the refrigerant as the high temperature and high pressure refrigerant.
  • the expansion mechanism 123 is an electric expansion valve that decompresses the refrigerant that flows out from the heating medium - refrigerant heat exchanger 122.
  • the heat source side heat exchanger 124 is a heat exchanger that evaporates the refrigerant decompressed by the expansion mechanism 123, by exchanging heat between the refrigerant and water or outdoor air as a heat source.
  • the heating medium - refrigerant heat exchanger 122 is a heat exchanger that heats the heating medium by exchanging heat between the high temperature and high pressure refrigerant compressed by and discharged from the compressor 121 and the heating medium that circulates in the heating medium circuit 104.
  • the heating medium - refrigerant heat exchanger 122 has passages through which the heating medium flow and the refrigerant flow such that the heating medium and the refrigerant are in counter current flow.
  • HCFC refrigerant As an operating refrigerant in the refrigerant circuit 120 in the heat source unit 102, it is possible to use HCFC refrigerant, HFC refrigerant, HC refrigerant, and CO 2 .
  • CO 2 having a low critical temperature is used, and it is possible to provide a supercritical refrigerating cycle in which the pressure of the refrigerant on the discharge side of the compressor 121 is equal to or higher than the critical pressure of the refrigerant.
  • the air supply device 103 is a device that supplies the outdoor air (shown as OA in Figure 1 ) to a room in the building U, and in the present embodiment, mainly includes a supply air outlet (not shown) that supplies the outdoor air from the outside to the room as the ventilation air, an exhaust air outlet (now shown) that exhausts the room air (shown as RA in Figure 1 ) from the room to the outside, and an exhaust fan 131 which is provided to the exhaust air outlet and which exhausts a portion of the room air as the exhaust air (shown as EA in Figure 1 ) from the room to the outside.
  • the room can be ventilated by the operation of the exhaust fan 131.
  • the exhaust fan 131 is used to ventilate the room, however, the room may be ventilated by, for example, providing a supply air fan to the supply air outlet, or by providing both the exhaust fan and the supply air fan to the supply air outlet.
  • the heating medium circuit 104 includes a radiator 141, a fan convector 142, and a floor heating device 143 as room heating devices that release the heat of the heating medium heated in the heating medium - refrigerant heat exchanger 122 into the room, and an outdoor air heating device 144 that heats the ventilation air that is supplied to the room by the air supply device 103 with the heat of the heating medium heated in the heating medium - refrigerant heat exchanger 122.
  • the heating medium circuit 104 is a circuit that circulates the heating medium between the radiator 141, the fan convector 142, the floor heating device 143 and the outdoor air heating device 144, and the heating medium - refrigerant heat exchanger 122.
  • the radiator 141 is placed in the room for example, and is a device that mainly releases the heat of the heating medium into the room by radiation heat transfer.
  • the radiator 141 includes a radiator heat exchanger 141a through which the heating medium passes and exchanges its heat with surrounding room air (here, the room air that just has been heat-exchanged in the radiator: heat exchanger 141a is referred to as SA l' shown in Figure 1 ).
  • the fan convector 142 is placed in the room for example, and is a device that mainly releases the heat of the heating medium into the room by forced convection heat transfer.
  • the fan convector 142 includes a convector heat exchanger 142a through which the heating medium passes and exchanges its heat with surrounding air, and a convector fan 142b which supplies the room air to the convector heat exchanger 142a and supplies the indoor air having been heat-exchanged in the convector heat exchanger 142a to the room as the supply air (shown as SA1' in Figure 1 ).
  • the floor heating device 143 is placed under the floor of the building U for example, and is a device that mainly includes a floor heating pipe 143a that releases the heat of the heating medium into the room via a heat transfer panel provided on a floor surface.
  • the outdoor air heating device 144 is placed outside for example, and is a device that mainly includes an outdoor air heat exchanger 144a that heats the ventilation air that is supplied to the room by the air supply device 103 with the heat of the heating medium (here, the supply air that is supplied to the room after being heat-exchanged in the outdoor air heat exchanger 144a is referred to as SA3 shown in Figure 1 ).
  • the heating medium circuit 104 is connected to the heating medium - refrigerant heat exchanger 122 such that the heating medium heated in the heating medium - refrigerant heat exchanger 122 is sequentially supplied to the radiator heat exchanger 141a in the radiator 141, the convector heat exchanger 142a of the fan convector 142, the floor heating pipe 143a of the floor heating device 143, and the outdoor air heat exchanger 144a of the outdoor air heating device 144.
  • the heating medium circuit 104 constitutes a single heating medium circuit connected in series such that the heating medium heated in the heating medium - refrigerant heat exchanger 122 by exchanging its heat with the refrigerant passes from a heating medium outlet of the heating medium - refrigerant heat exchanger 122 sequentially through the radiator heat exchanger 141 a, the convector heat exchanger 142a, the floor heating pipe 143a, and then the outdoor air heat exchanger 144a, and returns to a heating medium inlet of the heating medium - refrigerant heat exchanger 122 by a heating medium circulating pump 145 connected to the heating medium outlet of the outdoor air heat exchanger 144a.
  • the heating medium circuit 104 will be connected in order from the radiator heat exchanger 141a that requires the highest temperature heating medium to the outdoor air heat exchanger 144a that can use even the lowest temperature heating medium.
  • the heating medium circulating pump 145 is connected between the heating medium outlet of the outdoor air heat exchanger 144a and the heating medium inlet of the heating medium - refrigerant heat exchanger 122, and is a pump that is rotatably driven by a drive mechanism such as an electric motor so as to circulate the heating medium between the radiator heat exchanger 141 a, the convector heat exchanger 142a, the floor heating pipe 143a and the outdoor air heat exchanger 144a, and the heating medium - refrigerant heat exchanger 122.
  • a drive mechanism such as an electric motor
  • water and brine may be used as the heating medium that flows through the heating medium circuit 104.
  • water it will be advantageous in that inexpensive devices and pipes can be used to constitute the heating medium circuit 104.
  • brine it is preferable to use brine that does not freeze below 0 degrees C even during the low outdoor air temperature period, in order to prevent the heating medium from freezing in the outdoor air heating device 144 (specifically, in the outdoor air heat exchanger 144a).
  • This type of brine includes, for example, calcium chloride aqueous solution, sodium chloride aqueous solution, magnesium chloride aqueous solution, etc.
  • Figure 2 is a temperature-entropy diagram of the operation of the air conditioning system 101.
  • Figure 3 is a pressure-enthalpy diagram of the operation of the air conditioning system 101.
  • Figure 4 is a psychrometric chart of the operation of the air conditioning system 101.
  • the heating medium circulating pump 145 is started to circulate the heating medium in the heating medium circuit 104.
  • the compressor 121 of the heat source unit 102 will be started.
  • the low pressure refrigerant sucked into the compressor 121 will be compressed by the compressor 121 and discharged therefrom as the high temperature and high pressure refrigerant (see dot Ri shown in Figures 1 to 3 ).
  • This high temperature and high pressure refrigerant will flow into the heating medium - refrigerant heat exchanger 122 and heat the heating medium, and the refrigerant itself will be cooled and become a low temperature and high pressure refrigerant (see dot Ro3 shown in Figures 1 to 3 ).
  • the refrigerant cooled in the heating medium - refrigerant heat exchanger 122 by heating the heating medium will be decompressed by the expansion mechanism 123 and become a low temperature and low pressure refrigerant in a vapor-liquid two-phase state (see dot Re3 in Figures 1 to 3 ).
  • This refrigerant in a vapor-liquid two-phase state will be heated in the heat source side heat exchanger 124 by a heat source such as water or outdoor air, and will evaporate into a low temperature and low pressure gas refrigerant (see dot Rc in Figures 1 to 3 ). Then, this low temperature and low pressure gas refrigerant will be again sucked into the compressor 121.
  • the heating medium that circulates in the heating medium circuit 104 flows into the heating medium - refrigerant heat exchanger 122 from the heating medium inlet (see dot Wi3 in Figures 1 , 2 , and 4 ), and will be heated in the heating medium - refrigerant heat exchanger 122 by exchanging its heat with the high temperature and high pressure refrigerant compressed in and discharged from the compressor 121 (see dot Wo shown in Figures 1 , 2 , and 4 ).
  • a high temperature heating medium heated in the heating medium - refrigerant heat exchanger 122 will flow into the radiator heat exchanger 14 a of the radiator 141, release the heat of the heating medium into the room (specifically, the room air surrounding the radiator heat exchanger 141 a will be heated), and the heating medium itself will be cooled and the temperature thereof will decrease (for example, the temperature will decrease from about 70 degrees C to about 65 degrees C as shown in Figure 2 ).
  • the room air see RA shown in Figure 4
  • the heating medium that flowed out from the radiator heat exchanger 141 a will flow into the convector heat exchanger 142a of the fan convector 142, and release the heat of the heating medium into the room (specifically, the room air that is supplied by the convector fan 142b will be heated), and the heating medium itself will be cooled and the temperature thereof will decrease (for example, the temperature will decrease from about 65 degrees C to about 55 degrees C as shown in Figure 2 ).
  • the room air (see the arrow RA shown in Figure 1 ) becomes a supply air SA1' by the convector heat exchanger 142a (see Figure 1 ) and will be supplied to the room.
  • the heating medium that flowed out from the convector heat exchanger 142a will flow into the floor heating pipe 143a of the floor heating device 143, and release the heat of the heating medium into the room (specifically, a floor surface will be heated by the floor heating pipe 143a), and the heating medium itself will be cooled and the temperature thereof will decrease (for example, the temperature will decrease from about 55 degrees C to about 40 degrees C as shown in Figure 2 ).
  • the heating medium that flowed out from the floor heating pipe 143a will flow into the outdoor air heat exchanger 144a of the outdoor air heating device 144, and will heat the ventilation air that is supplied to the room by the air supply device 103 with the heat of the heating medium, and the heating medium itself will be cooled and the temperature thereof will decrease (for example, the temperature will decrease from about 40 degrees C to about 5 degrees C as shown in Figure 2 ).
  • the ventilation air (see dot OA shown in Figure 4 , about -10 degrees C) will be heated to a state of dot SA3 shown in Figure 4 (about 20 degrees C in Figure 4 ) by the outdoor air heat exchanger 144a.
  • the temperature of the room air RA is heated to about 20 degrees C (see dot RA shown in Figure 4 ) by the heating operation using the radiator 141, the fan convector 142, and the floor heating device 143. Accordingly, even when the ventilation air heated by the outdoor air heat exchanger 144a is supplied to the room and mixed with the room air RA, the temperature of the room air will hardly change.
  • the heating medium that flowed out from the outdoor air heat exchanger 144a again will flow into the heating medium - refrigerant heat exchanger 122 through the heating medium circulating pump 145 (see dot Wi3 in Figures 1 , 2 , and 4 ).
  • the air conditioning system 101 of this embodiment has the following characteristics.
  • an air conditioning system 901 that comprises the heat source unit 102 same as those in the air conditioning system 101 of the this embodiment, the air supply device 103, and a heating medium circuit 904 including the radiator 141, the fan convector 142, and the heating medium circulating pump 145.
  • the heating medium circuit 904 does not have the outdoor air heating device 144, so that when heating the room, the ventilation air (shown as OA in Figure 5 ) will be supplied to the room as is by the air supply device 103.
  • the room air (see dot RA shown in Figure 6 ) will be mixed (see dot MA shown in Figure 6 ) with the ventilation air (see dot OA in Figure 6 ), and consequently the temperature of this room air will be lower (about 12 degrees C in Figure 6 ) than the temperature of the room air heated by the heating operation using the radiator 141 and the fan convector 142. Consequently, the ventilation air that is supplied to the room for ventilating the room will cause a cold draft.
  • the air conditioning system 101 of this embodiment comprises the outdoor air heating device 144, when heating the room, as shown in Figure 4 , the outdoor air OA as the ventilation air that is supplied to the room by the air supply device 103 can be heated and then supplied to the room as the supply air SA3. Consequently, a cold draft due to the ventilation air that is supplied to the room for ventilating the room will be prevented, therefore improving the comfort of the room.
  • the heating medium circuit 904 does not have either the floor heating device 143 or the outdoor air heating device 144. Therefore, as shown in Figures 2, 3 , and 5 , the heating medium heated by exchanging its heat with the refrigerant in the heating medium - refrigerant heat exchanger 122 will circulate in the heating medium circuit 904 such that the heating medium will change from a state of dot Wo to a state of dot Wi1 and again returned to the heating medium - refrigerant heat exchanger 122.
  • the refrigerant will circulate in the refrigerant circuit 120 such that the refrigerant changes in order from a state of dot Rc on a suction side of the compressor 121 to a state of dot Ri that corresponds to dot Wo, to a state of dot Ro1 that corresponds to dot Wi1, and then to a state of dot Re1, and again is sucked into the compressor 121.
  • the heating medium circuit 104 includes the floor heating device 143 and the outdoor air heating device 144, and is further connected to the heating medium - refrigerant heat exchanger 122 such that the heating medium heated in the heating medium - refrigerant heat exchanger 122 is sequentially supplied to the radiator 141, the fan convector 142, the floor heating device 143, and the outdoor air heating device 144, so that the heating medium heated by exchanging heat with refrigerant in the heating medium - refrigerant heat exchanger 122 will circulate in the heating medium circuit 104 such that the heating medium changes from a state of dot Wo to a state of dot Wi3 and again is returned to the heating medium - refrigerant heat exchanger 122, as shown in Figures 1 , 2, and 3 .
  • the refrigerant will circulate in the refrigerant circuit 120 such that the refrigerant changes in order from a state of dot Rc on the suction side of the compressor 121 to a state of dot Ri that corresponds to dot Wo, to a state of dot Ro3 that corresponds to dot Wi3, and then to a state of Re3, and again is sucked into the compressor 121.
  • the radiator 141, the fan convector 142, and the floor heating device 143 can use the heat of a high temperature heating medium that just has been heated in heating medium - refrigerant heat exchanger 122, and the outdoor air heating device 144 can use the heat of the heating medium cooled by releasing its heat into the room in the radiator 141, the fan convector 142, and the floor heating device 143 (see dot Wi2 in Figures 1 and 2 ).
  • the ventilation air (shown as OA in Figure 1 ) that is supplied to the room by the air supply device 103 has a lower temperature than the indoor air (shown as RA in Figure 1 ), so that the heating medium cooled by releasing its heat into the room in the radiator 141, the fan convector 142, and the floor heating device 143 can be used to heat the ventilation air. Then, the heating medium used for heating the ventilation air that is supplied to the room by the outdoor air heating device 144 is further cooled by heating the ventilation air (see dot Wi3 shown in Figures 1 and 2 ), and then returned to the heating medium - refrigerant heat exchanger 122.
  • the heating medium cooled by releasing its heat in the radiator 141, the fan convector 142, and the floor heating device 143 is supplied to the outdoor air heating device 144 in order to heat the ventilation air that is supplied to the room. Therefore, compared to the air conditioning system 901, the temperature difference between the inlet and the outlet of the heating medium - refrigerant heat exchanger 122 (in other words, the temperature difference between the temperature of the heating medium in a state of dot Wo and the temperature of the heating medium in a state of dot Wi3) can be increased.
  • the air conditioning system 101 of this embodiment includes the floor heating device 143 in addition to the outdoor air heating device 144, so that the temperature difference between the inlet and the outlet of the heating medium - refrigerant heat exchanger 122 and the COP are further increased, compared to the conventional air conditioning system 901.
  • the air conditioning system 101 of this embodiment when water is used as a heating medium that flows through the heating medium circuit 104, it is possible to configure the heating medium circuit 104 at low cost.
  • the heating medium is prevented from freezing in the outdoor air heating device 144 even during the low outdoor air temperature period, and the ventilation air that is supplied to the room by the air supply device 103 will be more reliably heated by using the outdoor air heating device 144.
  • the air conditioning system 101 of this embodiment uses CO 2 as the refrigerant that flows through the vapor compression type refrigerant circuit 120 of the heat source unit 102. Accordingly, the refrigerant temperature on the discharge side of the compressor 121 can be increased, and the temperature level that can be used in the radiator 141, the fan convector 142, the floor heating device 143, and the outdoor air heating device 144 can be increased. This will achieve comfortable room heating.
  • the heating medium circuit 104 may further include a bypass heating medium circuit that bypasses at least one of the radiator 141, the fan convector 142, the floor heating device 143, and the outdoor air heating device 144.
  • the heating medium circuit 104 that does not include the fan convector 142 as shown in Figure 7 may be provided with bypass heating medium circuits 151, 153, 154 respectively for the radiator 141, the floor heating device 143, and the outdoor air heating device 144. This will enable to supply the heating medium to only some of the radiator 141, the floor heating device 143, and the outdoor air heating device 144 according to need.
  • bypass heating medium circuits 151, 153, 154 are respectively provided with a solenoid valve 151a, a motor operated valve 153a, and a solenoid valve 154a as a heating medium flow control mechanism. Consequently, the bypass heating medium circuits 151, 154 will be able to block the heating medium that flows through each of the bypass heating medium circuits 151, 154 according to need, and thereby enabling to control the flow of the heating medium that is supplied to the radiator 141 and the outdoor air heating device 144. In addition, the bypass heating medium circuit 153 will be able to control the flow of the heating medium that flows through the bypass heating medium circuit 153, and thereby enabling highly precise control of the flow of the heating medium that is supplied to the floor heating device 143.
  • the bypass heating medium circuit may be provided to each of the radiator 141, the floor heating device 143, and the outdoor air heating device 144, or to only some of the radiator 141, the floor heating device 143, and the outdoor air heating device 144.
  • some of the radiator 141, the floor heating device 143, and the outdoor air heating device 144 may be collected together such that these devices are bypassed together.
  • the type of a valve to be provided to the bypass heating medium circuit it is possible to select a valve according to the precision of flow control of the heating medium required in each bypass heating medium circuit.
  • some of the radiator 141, the fan convector 142, the floor heating device 143, and the outdoor air heating device 144 may use refrigerant that flows through the refrigerant circuit 120 without flowing through the heating medium circuit 104.
  • the floor heating device 143 and the outdoor air heating device 144 use the heat of the refrigerant that flows through the refrigerant circuit 120 in the heat source unit 102 via the heating medium that circulates in the heating medium circuit 104.
  • the high temperature and high pressure refrigerant compressed in and discharged from the compressor 121 may be caused to flow into the radiator heat exchanger 141 a of the radiator 141 so as to directly release the heat of the refrigerant into the room. This will enable simplification of the heating medium circuit 104.
  • refrigerant that flows through the refrigerant circuit 120 may be caused to flow into the floor heating pipe 143a and the outdoor air heat exchanger 144a so as to use the heat of the refrigerant.
  • the air conditioning system 101 of this modified example may be provided with the bypass heating medium circuit of the modified example 1.
  • the heating medium circuit 104 may be provided with a heating medium storage tank.
  • the heating medium circulating pump 145 may be provided with a heating medium storage tank 161 on the suction side thereof. This will enable to prevent problems such as breakage of devices constituting the heating medium circuit 104, which may occur when the heating medium circulating in the heating medium circuit 104 expands in volume along with its change in temperature.
  • an increase in the amount of heating medium in the heating medium circuit 104 will increase the heat capacity in the entire heating medium circuit 104, and the temperature of the heating medium that is supplied to the radiator 141, the floor heating device 143, and the outdoor air heating device 144, and the temperature of the heating medium that is returned to the heating medium - refrigerant heat exchanger 122 will become stable. As a result, controllability of the heat source unit 102 and the heating medium circuit 104 will improve.
  • the heating medium circuit 104 may be constituted by a plurality of divided heating medium circuits that independently circulate the heating medium between at least one of the radiator 141, the fan convector 142, the floor heating device 143 and the outdoor air heating device 144, and the heating medium - refrigerant heat exchanger 122.
  • the heating medium circuit 104 may be constituted by a first divided heating medium circuit 104a that independently circulates the heating medium between the radiator 141 and the heating medium - refrigerant heat exchanger 122; by a second divided heating medium circuit 104b that independently circulates the heating medium between the floor heating device 143 and the heating medium - refrigerant heat exchanger 122; and by a third divided heating medium circuit 104c that independently circulates the heating medium between the outdoor air heating device 144 and the heating medium - refrigerant heat exchanger 122.
  • the divided heating medium circuits 104a, 104b, 104c respectively include heating medium circulating pumps 145a, 145b, and 145c. This will enable to supply the heating medium to only some of the radiator 141, the floor heating device 143, and the outdoor air heating device 144 according to need.
  • the second divided heating medium circuit 104b is connected to the heating medium - refrigerant heat exchanger 122 such that the temperature of the heating medium that is supplied to the floor heating device 143 is equal to or lower than the temperature of the heating medium used in the radiator 141
  • the third divided heating medium circuit 104c is connected to the heating medium - refrigerant heat exchanger 122 such that the temperature of the heating medium that is supplied to the outdoor air heating device 144 is equal to or lower than temperature of the heating medium used by the floor heating device 143.
  • the radiator 141 can use the heat of the heating medium (see dots Wo and Wi1 shown in Figures 2, 3 , and 10 ) that just has been heated by the refrigerant (see dot Ri shown in Figures 2, 3 , and 10 ) compressed in and discharged from the compressor 121 in the heating medium - refrigerant heat exchanger 122;
  • the floor heating device 143 can use the heat of the heating medium whose temperature is lower than the temperature of the heating medium (see dots Wi1 and Wi2 in Figures 2, 3 , and 10 ) used in the radiator 141 heated by the refrigerant (see dot Ro1 shown in Figures 2, 3 , and 10 ) that heat-exchanged with the heating medium that flows through the first divided heating medium circuit 104a in the heating medium - refrigerant heat exchanger 122; and the outdoor air heating device 144 can use the heat of the heating medium (see dots Wi2 and Wi3 shown in Figures 2, 3 and 10 ) whose temperature is equal to or lower than the temperature of the heating medium used by the floor
  • the refrigerant will circulate in the refrigerant circuit 120 such that the refrigerant changes in order from a state of dot Rc on the suction side of the compressor 121 to a state of dot Ri that corresponds to dot Wo, to a state of dot Ro3 that corresponds to dot Wi3, and then to a state of Re3, and again is sucked into the compressor 121.
  • the heating medium whose temperature is equal to or lower than the temperature of the heating medium cooled by releasing its heat in the radiator 141 and the floor heating device 143 is supplied to the outdoor air heating device 144 and used to heat the ventilation air that is supplied to the room.
  • the air conditioning system of the above described embodiment and the modified example it will be possible to increase the temperature difference between the inlet and the outlet of the heating medium - refrigerant heat exchanger 122, therefore improving the COP of the heat source unit 102.
  • the heating medium - refrigerant heat exchanger 122 may be constituted by three divided heating medium - refrigerant heat exchangers 122a, 122b, and 122c serving as divided utilization side heat exchangers, which are divided so as to correspond to the divided heating medium circuits 104a, 104b, 104c.
  • the radiator 141 can use the heat of the heating medium (see dots Wo and Wi1 shown in Figures 2, 3 , and 11 ) that just has been heated by the refrigerant (see dot Ri shown in Figures 2, 3 , and 11 ) compressed in and discharged from the compressor 121 in the first divided heating medium - refrigerant heat exchanger 122a;
  • the floor heating device 143 can use the heat of the heating medium (see dots Wi1 and Wi2 in Figures 2, 3 , and 11 ) whose temperature is lower than the temperature of the heating medium used in the radiator 141 heated by the refrigerant (see dot Ro1 shown in Figures 2, 3 , and 11 ) that heat-exchanged with the heating medium that flows through the first divided heating medium circuit 104a in the first divided heating medium - refrigerant heat exchanger 122a;
  • the outdoor air heating device 144 can use the heat of the heating medium (see dots Wi2 and Wi3 shown in Figures 2, 3 and 11 ) whose temperature is equal to or lower than the temperature of
  • the refrigerant will circulate in the refrigerant circuit 120 such that the refrigerant changes in order from a state of dot Rc on the suction side of the compressor 121 to a state of dot Ri that corresponds to dot Wo, to a state of dot Ro1 that corresponds to dot Wi1, to a state of dot Ro2 that corresponds to dot Wi2, to a state of Ro3 that corresponds to dot Wi3, and then to a state of dot Re3, and again is sucked into the compressor 121.
  • the heating medium circuit 104 is divided into the divided heating medium circuits 104a, 104b, 104c which respectively correspond to the radiator 141, the floor heating device 143, and the outdoor air heating device 144; and the heating medium - refrigerant heat exchanger 122 is also divided into the divided heating medium - refrigerant heat exchangers 122a, 122b, 122c which respectively correspond to the divided heating medium circuits 104a, 104b, 104c.
  • the heating medium circuit 104 may be divided into the first divided heating medium circuit 104a including a first heating medium circulating pump 145a dedicated to the radiator 141, and the second divided heating medium circuit 104d including a second heating medium circulating pump 145d shared by the floor heating device 143 and the outdoor air heating device 144, and also, the heating medium - refrigerant heat exchanger 122 may be divided into the first divided heating medium - refrigerant heat exchanger 122a dedicated to the radiator 141 and a second divided heating medium - refrigerant heat exchanger 122d shared by the floor heating device 143 and the outdoor air heating device 144.
  • the refrigerant circuit 120 may further include at least one bypass refrigerant circuit that bypasses the divided heating medium - refrigerant heat exchangers.
  • the first divided heating medium - refrigerant heat exchanger 122a may be provided with a bypass refrigerant circuit 171. This will enable to supply the refrigerant to only the divided heating medium - refrigerant heat exchangers 122b, 122c according to need.
  • the bypass refrigerant circuit 171 is provided with a solenoid valve 171 a as a heating medium flow control mechanism. Consequently, it will be possible to block the heating medium that flows through the bypass heating medium circuit 171 according to need, and thereby enabling to control the flow of refrigerant that is supplied to the divided heating medium - refrigerant heat exchanger 122a.
  • the bypass refrigerant circuit may be provided to only the first divided heating medium - refrigerant heat exchanger 122a, or to each of the divided heating medium - refrigerant heat exchangers 122a, 122b, 122c. Alternatively, some of the divided heating medium - refrigerant heat exchangers 122a, 122b, 122c may be collected together such that these devices are bypassed together.
  • the type of a valve to be provided to the bypass refrigerant circuit it is possible to select a valve according to the precision of flow control of the heating medium required in each bypass heating medium circuit. For example, use of a motor operated valve instead of a solenoid valve will enable highly precise control of the flow of refrigerant that is supplied to the bypass refrigerant circuit.
  • some of the radiator 141, the fan convector 142, the floor heating device 143, and the outdoor air heating device 144 may use refrigerant that flows through the refrigerant circuit 120 without flowing through the heating medium circuit 104.
  • the floor heating device 143 and the outdoor air heating device 144 use the heat of the refrigerant that flows through the refrigerant circuit 120 in the heat source unit 102 via the heating medium that circulates in the divided heating medium circuits 104b, 104c.
  • the high temperature and high pressure refrigerant compressed in and discharged from the compressor 121 may be caused to flow into the radiator heat exchanger 141a of the radiator 141 so as to directly release the heat of the refrigerant into the room. This will enable simplification of the heating medium circuit 104.
  • refrigerant that flows through the refrigerant circuit 120 may be caused to flow into the floor heating pipe 143a and the outdoor air heat exchanger 144a so as to use the heat of the refrigerant.
  • the heating medium circuit 104 may be provided with a heating medium storage tank.
  • the heating medium circulating pumps 145a, 145b, 145c may be provided with heating medium storage tanks 161 a, 161b, 161c on the suction side each thereof. Consequently, it will be possible to prevent problems such as breakage of devices constituting the divided heating medium circuits 104a, 104b, and 104c, which may occur when the heating medium circulating in the heating medium circuit 104 expands in volume along with its change in temperature.
  • an increase in the amount of heating medium in the divided heating medium circuits 104a, 104b, 104c will increase the heat capacity of each of the divided heating medium circuits 104a, 104b, 104c, and the temperature of the heating medium that is supplied to the radiator 141, the floor heating device 143, and the outdoor air heating device 144, and the temperature of the heating medium that is returned to the divided heating medium - refrigerant heat exchangers 122a, 122b, 122c will become stable.
  • controllability of the heat source unit 102 and the divided heating medium circuits 104a, 104b, 104c will improve.
  • the air conditioning system 101 of the above described embodiments and modified examples comprises the outdoor air heating device 144. Consequently, a cold draft due to the ventilation air that is supplied to the room for ventilation in the room is prevented and the comfort of the room is improved. However, when the absolute humidity of the ventilation air is lower than the absolute humidity of the room air, the supply of ventilation air may dry the room. Therefore, according to this modified example, the air conditioning system 101 of the above described embodiments and modified examples is further provided with a humidifier that humidifies the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room.
  • the air conditioning system 101 the same as the one in Figure 1 as shown in Figure 16 can be provided with a humidifier 182 having a spray nozzle 182a that sprays water to the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room, and a water supply pipe 181 that supplies water to a spray nozzle 182a of the humidifier 182.
  • the ventilation air (shown as SA3 in Figure 16 ) heated by exchanging heat with the heating medium in the outdoor air heating device 144 is to be supplied to the room
  • the ventilation air is introduced into the humidifier 182, humidified with water sprayed from the spray nozzle 182a of the humidifier 182, and then supplied to the room (shown as SA3' in Figure 16 ).
  • the air conditioning system 101 of this modified example can humidify the ventilation air, so that even when the absolute humidity of the ventilation air is lower than the absolute humidity of the room air, it is possible to prevent the room from becoming dry due to the supply of ventilation air to the room.
  • the temperature of the ventilation air humidified by the humidifier 182 will be lower than the temperature of the ventilation air heated by the outdoor air heating device 144.
  • the amount of heating.the ventilation air in the outdoor air heating device 144 is increased with consideration of evaporation of water in the humidifier 182.
  • the ventilation air (shown as SA3 in Figure 17 ) is heated by the outdoor air heating device 144 so as to increase its temperature (to about 30 degrees C in Figure 17 ) higher than the temperature (about 20 degrees C in Figure 4 ) of the ventilation air (shown as SA 3 in Figure 4 ) in the air conditioning system that does not include the humidifier 182 shown in Figure 1 .
  • the temperature of the ventilation air (shown as SA 3' in Figure 17 ) that is supplied to the room will be close to the temperature (about 20 degrees C in Figure 17 ) of the room air (shown as RA in Figure 17 ).
  • the absolute humidity of the ventilation air SA 3' is also almost equal to the absolute humidity of the room air RA (in Figure 17 , it is equivalent to relative humidity 50%). Accordingly, in the air conditioning system 101 of this modified example, the ventilation air having a low temperature and a low humidity compared to the room air is heated and humidified respectively by the outdoor air heating device 144 and the humidifier 182 so that the ventilation air and the room air will have the same temperature and humidity conditions, and then is supplied to the room. As a result, it is possible to further enhance the comfort of the room.
  • an air washer may be used instead of a spray nozzle.
  • a spray nozzle or an air washer is used as a humidifier for humidifying the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room.
  • a moisture permeable film having a moisture permeability may be used.
  • the air conditioning system 101 that does not include the fan convector 142 as shown in Figure 18 may be provided with a humidifier 183 comprising a moisture permeable film module 183a having a plurality of tube shaped moisture permeable films, and a water supply pipe 181 for supplying water to the moisture permeable film module 183a of the humidifier 183.
  • the moisture permeable film module 183a is provided with a passage such that the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room passes over the outside of the moisture permeable film.
  • the inside of the moisture permeable film is configured such that water supplied to the moisture permeable film module 183a is introduced therein, and is capable of humidifying the ventilation air by causing water that is supplied to the moisture permeable film to contact with the ventilation air via the moisture permeable film.
  • PTFE polytetrafluoroethylene
  • the ventilation air can be humidified by causing water that is supplied to the moisture permeable film of the moisture permeable film module 183a of the humidifier 183 to contact with the ventilation air via the moisture permeable film. Therefore, as in the modified example 10, even when the absolute humidity of the ventilation air is lower than the absolute humidity of the room air, it is possible to prevent the room from becoming dry due to the supply of ventilation air to the room.
  • the amount of heating the ventilation air in the outdoor air heating device 144 is increased with consideration of evaporation of water in the humidifier 183. Consequently, as in the modified example 10, the ventilation air having a low temperature and a low humidity compared to the room air is heated and humidified so that the ventilation air and the room air will have the same temperature and humidity conditions, and then supplied to the room. As a result, it is possible to further improve the comfort of the room.
  • a water supply type humidifier in which water is supplied to the humidifier via the water supply pipe 181 is used.
  • a humidifier that uses moisture absorbing liquid capable of both absorbing moisture and desorbing the absorbed moisture.
  • the air conditioning system 101 that does not include the fan convector 142 as shown in Figure 19 may be provided with a humidifier 184 comprising first and second moisture permeable film modules 184a, 184b having a plurality of tube shaped moisture permeable films, and a moisture absorbing liquid circulating pump 184c that circulates the moisture absorbing liquid between the first and second moisture permeable film modules 184a, 184b.
  • a humidifier 184 comprising first and second moisture permeable film modules 184a, 184b having a plurality of tube shaped moisture permeable films
  • a moisture absorbing liquid circulating pump 184c that circulates the moisture absorbing liquid between the first and second moisture permeable film modules 184a, 184b.
  • the first moisture permeable film module 184a is provided with a passage such that the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room passes over the outside of the moisture permeable film.
  • the inside of the moisture permeable film of the first moisture permeable film module 184a is configured such that moisture absorbing liquid that is circulated by the moisture absorbing liquid circulating pump 184c is introduced therein, and is capable of humidifying the ventilation air, by causing moisture absorbing liquid that is supplied to the moisture permeable film to contact with the ventilation air via the moisture permeable film and by using the ventilation air to heat the moisture absorbing liquid in which moisture is absorbed to desorb moisture back into the ventilation air.
  • the second moisture permeable film module 184b is provided with a passage such that the exhaust air that is exhausted from the room to the outside passes over the outside of the moisture permeable film.
  • the inside of the moisture permeable film of the second moisture permeable film module 184b is configured such that moisture absorbing liquid that is circulated by the moisture absorbing liquid circulating pump 184c is introduced therein, and the moisture absorbing liquid that is supplied to the moisture permeable film is caused to contact with the exhaust air via the moisture permeable film so that moisture in the exhaust air can be absorbed into the moisture absorbing liquid.
  • the moisture permeable film polytetrafluoroethylene (PTFE) and the like may be used.
  • a moisture absorbing liquid lithium chloride aqueous solution and the like may be used.
  • This humidifier 184 operates to circulate the moisture absorbing liquid by the moisture absorbing liquid circulating pump 184c in order from the second moisture permeable film module 184b to the first moisture permeable film module 184a.
  • moisture in the exhaust air will be absorbed into the moisture absorbing liquid via the moisture permeable film of the second moisture permeable film module 184b.
  • the moisture absorbing liquid that absorbed this moisture will be sent to the first moisture permeable film module 184a.
  • the ventilation air heated by the outdoor air heating device 144 is passed through the first moisture permeable film module 184a, the moisture absorbing liquid sent from the second moisture permeable film module 184b to the first moisture permeable film module 184a will be heated via the moisture permeable film. Then, moisture is desorbed from this heated moisture absorbing liquid back to the ventilation air via the moisture permeable film, and the ventilation air is humidified and supplied to the room.
  • the air conditioning system 101 of this modified example is provided with the humidifier 184 that uses the moisture absorbing liquid, so that it is possible to humidify the ventilation air by using the ventilation air to heat the moisture absorbing liquid in which moisture is absorbed and by desorbing moisture back into the ventilation air.
  • moisture included in the exhaust air that is exhausted from the room to the outside is used as moisture to be absorbed into the moisture absorbing liquid, so that it is possible to humidify the ventilation air without the need to supply water to the humidifier 184.
  • the exhaust air that is exhausted from the room to the outside (shown as RA on the left side of the second moisture permeable film module 184b in Figure 20 ) is mixed with the outdoor air (shown as OA on the left side of the second moisture permeable film module 184b in Figure 20 ) different from the ventilation air, and this mixed air may be passed through the second moisture permeable film module 184b so that moisture will be absorbed into the moisture absorbing liquid via the moisture permeable film of the second moisture permeable film module 184b, and this absorbed moisture may be caused to be desorbed back to the ventilation air via the moisture permeable film of the first moisture permeable film module 184a.
  • the humidifier 184 that uses the moisture absorbing liquid is configured so as to exchange moisture between the moisture absorbing liquid and the air via the moisture permeable film modules 184a, 184b having the moisture permeable film.
  • it is not limited thereto and it may be configured such that the moisture absorbing liquid and the air are in direct contact with each other.
  • both the exhaust air that is exhausted from the room to the outside and the outdoor air different from the ventilation air are caused to pass through the second moisture permeable film module 184b, however, only the outdoor air different from the ventilation air may be caused to pass therethrough.
  • the air conditioning system 101 of the above described modified example 12 uses a humidifier that uses the moisture absorbing liquid capable of both absorbing moisture and desorbing the absorbed moisture through heating.
  • a humidifier that uses an adsorbent capable of both adsorbing moisture and desorbing the adsorbed moisture through heating may be used.
  • the air conditioning system 101 that does not include the fan convector 142 as shown in Figure 21 may be provided with a humidifier 185 having a desiccant rotor 185a in which an adsorbent is carried.
  • the humidifier 185 is provided with a passage such that the ventilation air that is heated by the outdoor air heating device 144 and supplied to the room passes through a portion of the desiccant rotor 185a.
  • a passage in which the exhaust air that is exhausted from the room to the outside passes therethrough is provided on a different portion of the desiccant rotor 185a.
  • the desiccant rotor 185a is configured to be capable of being rotatably driven by a drive mechanism such as an electric motor, and is capable of flowing the ventilation air and the exhaust air through each portion of the desiccant rotor 185a.
  • zeolite, silica gel, activated alumina, and the like may be used.
  • this humidifier 185 when the exhaust air is passed through a portion of the desiccant rotor 185a other than a portion through which the ventilation air is passed, moisture in the exhaust air will be adsorbed onto the adsorbent of the desiccant rotor 185a. Then, the desiccant rotor 185a is rotated, and a portion in which moisture is adsorbed is moved to a portion corresponding to the passage through which the ventilation air is passed.
  • the ventilation air will pass through a portion of the desiccant rotor 185a in which moisture in the exhaust air is adsorbed, and the ventilation air heated by the outdoor air heating device 144 will heat the portion of the desiccant rotor 185a in which moisture is adsorbed. Consequently, it will be possible to desorb moisture from this heated adsorbent back to the ventilation air, humidify the ventilation air, and supply the humidified ventilation air to the room.
  • the air conditioning system 101 of this modified example is provided with the humidifier 185 that uses an adsorbent, so that the adsorbent onto which moisture is adsorbed can be heated by using the ventilation air to desorb the moisture back to the ventilation air, thereby humidifying the ventilation air.
  • the air conditioning system 101 uses moisture in the exhaust air that is exhausted from the room to the outside, so that the ventilation air can be humidified without the need to supply water to the humidifier 185.
  • the exhaust air that is exhausted from the room to the outside (shown as RA on the left side of the desiccant rotor 185a in Figure 21 ) is mixed with the outdoor air (shown as OA on the left side of the desiccant rotor 185a in Figure 21 ) different from the ventilation air, and this mixed air may be passed through the desiccant rotor 185a so as to adsorb moisture onto the adsorbent of the desiccant rotor 185a and desorb the moisture back to the ventilation air.
  • both the exhaust air that is exhausted from the room to the outside and the outdoor air different from the ventilation air are caused to pass through the desiccant rotor 185a, however, only the outdoor air different from the ventilation air may be caused to pass therethrough.
  • the air conditioning system of the above described embodiment uses, as a heat source unit, a heat source unit that has a refrigerant circuit dedicated to heating.
  • a heat source unit capable of switchably performing cooling and heating operations may be used.
  • Application of the present invention will enable, in the air conditioning system capable of heating the room, the prevention of a cold draft due to the ventilation air that is supplied to the room to ventilate the room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Central Air Conditioning (AREA)
  • Air Conditioning Control Device (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Air Humidification (AREA)
EP05736755.9A 2004-04-28 2005-04-28 Air conditioner system Not-in-force EP1746355B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004134352A JP2005315516A (ja) 2004-04-28 2004-04-28 空気調和システム
PCT/JP2005/008190 WO2005106341A1 (ja) 2004-04-28 2005-04-28 空気調和システム

Publications (3)

Publication Number Publication Date
EP1746355A1 EP1746355A1 (en) 2007-01-24
EP1746355A4 EP1746355A4 (en) 2009-12-02
EP1746355B1 true EP1746355B1 (en) 2013-09-18

Family

ID=35241760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05736755.9A Not-in-force EP1746355B1 (en) 2004-04-28 2005-04-28 Air conditioner system

Country Status (7)

Country Link
US (1) US20080000243A1 (ja)
EP (1) EP1746355B1 (ja)
JP (1) JP2005315516A (ja)
KR (1) KR100735990B1 (ja)
CN (3) CN100507382C (ja)
NO (1) NO20065448L (ja)
WO (1) WO2005106341A1 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813887B1 (en) * 2006-01-31 2009-05-06 Sanyo Electric Co., Ltd. Air conditioning device
JP2009281640A (ja) * 2008-05-21 2009-12-03 Daikin Ind Ltd 空調システム
JP2011127874A (ja) * 2009-12-21 2011-06-30 Kansai Electric Power Co Inc:The 床暖房システム
CN103153434A (zh) * 2010-09-07 2013-06-12 戴斯分析公司 使用选择性传递膜的流体处理***和方法
CN101968243B (zh) * 2010-09-21 2012-11-28 东南大学 同时制取双温度水的空气源热泵装置及驱动方法
CN102537470B (zh) * 2010-12-20 2014-03-19 杨伯钢 自控式双路直流低压电动温控阀
DE102012011519A1 (de) * 2012-06-08 2013-12-12 Yack SAS Klimaanlage
US9869476B1 (en) * 2015-06-03 2018-01-16 II Valdemar R. Losse Non-electric forced air heating and cooling apparatus
CN105509202A (zh) * 2016-01-22 2016-04-20 珠海格力电器股份有限公司 机房空调***
US10655888B2 (en) * 2016-03-08 2020-05-19 Heatcraft Refrigeration Products Llc Modular rack for climate control system
JP7258143B2 (ja) * 2018-12-07 2023-04-14 ダイキン工業株式会社 空調装置

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1801371A (en) * 1929-03-13 1931-04-21 Earl E Snader Automatic temperature-controlled refrigerating system
JPS5531459Y2 (ja) * 1974-02-14 1980-07-26
US4289272A (en) * 1978-03-31 1981-09-15 Matsushita Electric Industrial Co., Ltd. Temperature control apparatus
DE2837248A1 (de) * 1978-08-25 1980-02-28 Hatz Motoren Heizungsanlage mit waermepumpe und zusatzheizung
JPS60178009A (ja) * 1984-02-25 1985-09-12 Color Toronitsuku Kk 合成樹脂乾燥用の高温除湿空気発生方法およびその装置
JPS6291134U (ja) * 1985-11-28 1987-06-11
JPH02225924A (ja) * 1989-02-28 1990-09-07 Hitachi Cable Ltd 床暖房併用蓄熱空調システム
JPH0351677A (ja) * 1989-07-19 1991-03-06 Mitsubishi Electric Corp ヒートポンプ式冷暖房給湯装置
JPH05306849A (ja) * 1992-04-30 1993-11-19 Matsushita Refrig Co Ltd 多室冷暖房装置
KR0152291B1 (ko) * 1993-06-10 1998-11-02 김광호 벌마이어 히트펌프의 냉,난방장치
JP3119062B2 (ja) * 1993-12-29 2000-12-18 ダイキン工業株式会社 空気調和機
FI954953A (fi) * 1995-10-17 1997-04-18 Abb Installaatiot Oy Lämmösiirtoneste
US6026652A (en) 1996-10-18 2000-02-22 Sanyo Electric Co., Ltd. Air conditioning system having single bus line
JPH10197171A (ja) * 1996-12-27 1998-07-31 Daikin Ind Ltd 冷凍装置及びその製造方法
JP3514110B2 (ja) * 1998-05-01 2004-03-31 トヨタ自動車株式会社 エアコンシステムの運転制御方法
JP2000257912A (ja) * 1999-03-05 2000-09-22 Daikin Ind Ltd 吸着体及び空気調和装置
JP2000257936A (ja) * 1999-03-09 2000-09-22 Daikin Ind Ltd 調湿換気装置
JP4066553B2 (ja) * 1999-03-17 2008-03-26 ダイキン工業株式会社 空気調和装置
JP2001241693A (ja) * 2000-02-25 2001-09-07 Daikin Ind Ltd 空気調和装置
JP4378900B2 (ja) * 2001-08-03 2009-12-09 株式会社デンソー ヒートポンプ式給湯装置
JP2003050035A (ja) 2001-08-06 2003-02-21 Matsushita Electric Ind Co Ltd 冷暖房装置
JP3702855B2 (ja) * 2001-09-28 2005-10-05 三菱電機株式会社 ヒートポンプ床暖房空調装置
KR100441008B1 (ko) 2001-12-05 2004-07-21 삼성전자주식회사 냉난방 공기조화시스템
JP4298990B2 (ja) * 2002-04-26 2009-07-22 パナソニック株式会社 二酸化炭素を冷媒として用いた冷凍装置
KR100473823B1 (ko) * 2002-08-06 2005-03-08 삼성전자주식회사 냉수 및 온수 제조 장치를 구비한 공기 조화기
KR20040104300A (ko) * 2003-06-03 2004-12-10 삼성전자주식회사 공기조화시스템
KR100535687B1 (ko) 2003-12-09 2005-12-09 삼성전자주식회사 멀티형 공기조화시스템

Also Published As

Publication number Publication date
EP1746355A4 (en) 2009-12-02
WO2005106341A1 (ja) 2005-11-10
JP2005315516A (ja) 2005-11-10
KR100735990B1 (ko) 2007-07-06
CN101498485A (zh) 2009-08-05
US20080000243A1 (en) 2008-01-03
CN101498486A (zh) 2009-08-05
KR20070003985A (ko) 2007-01-05
EP1746355A1 (en) 2007-01-24
NO20065448L (no) 2007-01-29
CN100507382C (zh) 2009-07-01
CN1942719A (zh) 2007-04-04

Similar Documents

Publication Publication Date Title
EP1746355B1 (en) Air conditioner system
JP6718871B2 (ja) 液体乾燥剤空調システム
US7685835B2 (en) Air conditioning system
JP2019215156A (ja) ミニ分割液体デシカント空調のための方法及びシステム
JP3861902B2 (ja) 調湿装置
JP2000111096A (ja) デシカント空調システム
JP2010151376A (ja) 空気調和装置、空調システム
JP2001241693A (ja) 空気調和装置
JP4683548B2 (ja) デシカント式換気装置
JP2002022291A (ja) 空気調和装置
US20190145640A1 (en) Methods and systems for liquid desiccant air conditioning
JP3373948B2 (ja) 空気調和装置
JP2008304113A (ja) 調湿空調システム
JP2005164220A (ja) 空気調和装置
JP2002130738A (ja) 空気調和装置
JP2004028526A (ja) 除湿兼加湿システム
KR102401747B1 (ko) 공조 시스템
JP2000274734A (ja) 燃料電池排熱利用空調装置
JPH11132505A (ja) 空気調和装置

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20091030

17Q First examination report despatched

Effective date: 20110802

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 3/14 20060101ALI20121030BHEP

Ipc: F24F 3/00 20060101AFI20121030BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602005041266

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F24F0005000000

Ipc: F25B0009000000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 3/00 20060101ALI20130404BHEP

Ipc: F24F 3/14 20060101ALI20130404BHEP

Ipc: F25B 9/00 20060101AFI20130404BHEP

INTG Intention to grant announced

Effective date: 20130417

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 633000

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602005041266

Country of ref document: DE

Effective date: 20131114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130717

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130918

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 633000

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130918

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140118

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602005041266

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140120

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20140619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602005041266

Country of ref document: DE

Effective date: 20140619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140428

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140428

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20050428

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20180329

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180315

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180417

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005041266

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191101

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430