WO2018158895A1 - Système de climatisation et procédé de commande d'un système de climatisation - Google Patents

Système de climatisation et procédé de commande d'un système de climatisation Download PDF

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Publication number
WO2018158895A1
WO2018158895A1 PCT/JP2017/008195 JP2017008195W WO2018158895A1 WO 2018158895 A1 WO2018158895 A1 WO 2018158895A1 JP 2017008195 W JP2017008195 W JP 2017008195W WO 2018158895 A1 WO2018158895 A1 WO 2018158895A1
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WIPO (PCT)
Prior art keywords
unit
indoor unit
outdoor unit
refrigerant
indoor
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PCT/JP2017/008195
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English (en)
Japanese (ja)
Inventor
正史 芦野
文夫 齋藤
真海 安田
Original Assignee
三菱電機株式会社
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.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2017/008195 priority Critical patent/WO2018158895A1/fr
Priority to JP2019502372A priority patent/JP6732098B2/ja
Publication of WO2018158895A1 publication Critical patent/WO2018158895A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • 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

Definitions

  • the present invention relates to an air conditioning system including a plurality of indoor units including an indoor unit including a humidifier, and a control method of the air conditioning system.
  • Patent Document 1 An operation control device for an air conditioner that stops supplying water to a humidifier and dries the humidifier is proposed in Patent Document 1 (see Patent Document 1).
  • the present invention has been made in view of the above, and an object thereof is to obtain an air conditioning system capable of shortening the time required for drying a humidifier.
  • an air conditioning system includes an outdoor unit.
  • the air conditioning system includes a plurality of indoor units including a first indoor unit including a humidifier.
  • the outdoor unit supplies refrigerant to a plurality of indoor units.
  • the air conditioning system includes a valve that controls the flow rate of the refrigerant supplied to the first indoor unit between the first indoor unit and the outdoor unit.
  • the humidifier humidifies the air whose temperature is controlled by the refrigerant supplied from the outdoor unit.
  • the air conditioning system obtains operation state information indicating the operation state of the outdoor unit from the outdoor unit, and determines whether or not the outdoor unit is performing an operation of supplying a refrigerant for heating or humidification. A part.
  • the first indoor unit stops the operation of the humidifier and then starts a drying operation for drying the humidifier.
  • the outdoor unit is used for heating or humidification.
  • a drive command output unit that outputs a command to open the valve is provided.
  • the air conditioning system according to the present invention can shorten the time required for drying the humidifier and can reduce the power consumption required for drying the humidifier.
  • the figure which shows schematically the structural example of the indoor unit in FIG. The block diagram which shows an example of the hardware constitutions of the control apparatus in FIG.
  • the block diagram which shows an example of a function structure of the indoor unit in FIG. The flowchart of the air-conditioning process which the control part of the indoor unit in FIG. 1 performs
  • coolant for the heating or humidification of the outdoor unit of Embodiment 2 The figure for demonstrating the power consumption reduction amount of the indoor unit of Embodiment 2.
  • region 2 in FIG. The figure for demonstrating the output of the drive command by the drive command output part at the time of the drying operation of the indoor unit of Embodiment 2
  • the block diagram which shows an example of a function structure of the indoor unit of the air conditioning system concerning Embodiment 4 of this invention.
  • Timing chart for explaining an example of the operation of the air-conditioning system according to Embodiment 4 of the present invention.
  • the block diagram which shows an example of a function structure of the indoor unit of the air conditioning system concerning Embodiment 5 of this invention. Flowchart of drying operation processing executed by the indoor unit of the air-conditioning system according to Embodiment 5 of the present invention.
  • the figure for demonstrating the setting information of the open condition of an expansion valve by the function setting circuit of Embodiment 5 The figure for demonstrating the setting information of the operating condition of the air blower by the function setting circuit of Embodiment 5
  • the sequence diagram of the process which the air conditioning system concerning Embodiment 7 of this invention performs The figure for demonstrating an example of the content of the data which an indoor unit transmits to a central monitoring apparatus in sequence SQ03
  • the figure for demonstrating an example of the content of the data which an outdoor unit transmits to a central monitoring apparatus in sequence SQ13 Flowchart of drying operation process executed by the indoor unit in Embodiment 7
  • FIG. 1 is a diagram schematically illustrating a configuration example of an air-conditioning system according to Embodiment 1 of the present invention.
  • an air conditioning system 100 includes an outdoor unit 3 installed outdoors, indoor units 4a, 4b,..., 4n installed indoors, ventilation devices 5a,. , 6n, indoor unit remote controllers 6a, 6b,..., 6n, ventilation device remote controllers 7a,.
  • the indoor units 4a, 4b,..., 4n may be simply referred to as the indoor unit 4
  • the ventilators 5a, ..., 5m may be simply referred to as the ventilator 5
  • the indoor unit remote controllers 6a, 6b,. May be simply referred to as a remote controller 6, and the ventilator remote controllers 7 a,.
  • the indoor unit 4 and the ventilation device 5 are examples of indoor units.
  • the outdoor unit 3 and the indoor unit 4 are connected to each other by a refrigerant pipe 1 through a branch unit 9 that switches a refrigerant flow direction. Similarly, the outdoor unit 3 and the ventilator 5 are also connected by the refrigerant pipe 1 through the branch unit 9.
  • the outdoor unit 3, the indoor unit 4, the ventilation device 5, and the central monitoring device 8 are connected to each other via the communication line 2.
  • the central monitoring device 8 can operate the outdoor unit 3, the indoor unit 4, and the ventilation device 5 individually or collectively through the communication line 2, or monitor the operation state.
  • the central monitoring device 8 includes a command for operating or stopping the indoor unit 4, a command for causing the indoor unit 4 to perform a heating operation or a cooling operation, a command for setting the wind speed of the indoor unit 4, and the indoor unit 4.
  • a command for performing a humidifying operation or a command for stopping the humidifying operation is sent to the indoor unit 4, or execution state information indicating whether the indoor unit 4 and the ventilation device 5 are performing a drying operation is received.
  • the outdoor unit 3 can receive the execution state information indicating the state of whether the indoor unit 4 and the ventilation device 5 are performing the drying operation via the communication line 2.
  • the indoor unit 4 and the remote controller 6 are connected via a wired or wireless connection.
  • the remote controller 6 is, for example, an operation request operation or a stop request operation for the indoor unit 4 from a user, a heating request operation or a cooling request operation for the indoor unit 4, a wind speed setting operation for the indoor unit 4, and a humidification request operation for the indoor unit 4.
  • a humidification stop request operation can be accepted, and the operating state of the indoor unit 4 can be displayed.
  • the remote controller 6 has a command for operating or stopping the indoor unit 4, a command for causing the indoor unit 4 to perform a heating operation or a cooling operation, a command for setting the wind speed of the indoor unit 4, and a humidifying operation of the indoor unit 4.
  • the command for stopping the humidification operation can be sent to the indoor unit 4.
  • the ventilator 5 and the remote controller 7 are connected via a wired or wireless connection.
  • the remote controller 7 is, for example, an operation request operation or a stop request operation of the ventilation device 5 from a user, a heating request operation or a cooling request operation of the ventilation device 5, an operation of the ventilation air volume of the ventilation device 5, and an operation of the ventilation device 5.
  • a humidification request operation or a humidification stop request operation can be received, and the operating state of the ventilator 5 can be displayed.
  • the remote controller 7 includes a command for operating or stopping the ventilator 5, a command for causing the ventilator 5 to perform a heating operation or a cooling operation, a command for setting the ventilation air volume of the ventilator 5, and the ventilator 5. Can be sent to the ventilator 5 for a humidifying operation or a command for stopping the humidifying operation.
  • the indoor unit 4 sends a command sent from the remote controller 6 or the central monitoring device 8, a command sent from the remote control 6 via wired or wireless, and a command sent from the central monitoring device 8 through the communication line 2.
  • the operation setting information such as heating operation or cooling operation, wind speed setting information, temperature setting information, humidity setting information, execution state information of the drying operation for drying the humidifier 13 described later
  • the temperature of the temperature adjustment target space A command for controlling the outdoor unit 3 is generated based on the information and the humidity information of the humidity control target space, and the command is sent to the outdoor unit 3 via the communication line 2.
  • the ventilator 5 communicates a command sent from the remote controller 7 or the central monitoring device 8, a command sent from the remote control 6 via wired or wireless communication, and a command sent from the central monitoring device 8.
  • operation setting information such as heating operation or cooling operation, ventilation air volume setting information, temperature setting information, humidity setting information, execution state information of drying operation for drying the humidifier 13 described later
  • temperature control Based on information such as temperature information of the target space and humidity information of the humidity control target space, a command for controlling the outdoor unit 3 is generated, and the command is sent to the outdoor unit 3 via the communication line 2.
  • the outdoor unit 3 When the outdoor unit 3 receives a command sent from at least one of the indoor unit 4 and the ventilation device 5 via the communication line 2, the outdoor unit 3 controls a compressor (not shown) in the outdoor unit 3 based on the command. The temperature or flow rate of the refrigerant supplied to at least one of the indoor unit 4 and the ventilator 5 via the refrigerant pipe 1 and the branch unit 9 is controlled.
  • FIG. 2 is a diagram schematically showing a configuration example of the indoor unit 4 in FIG.
  • the indoor unit 4 includes a blower 11, an air conditioning coil 12, a humidifier 13, a temperature sensor 14, and a control device 20.
  • the blower 11 sucks air 15 from the room and circulates the air 15 so that the sucked air 15 passes through the air conditioning coil 12 and the humidifier 13 and is supplied to the room.
  • the air conditioning coil 12 is connected to the outdoor unit 3 via the refrigerant pipe 1 and the branch unit 9.
  • the air conditioning coil 12 heats or cools the air 15 using the refrigerant supplied from the outdoor unit 3 through the refrigerant pipe 1 and the branch unit 9. In the following description, heating or cooling air is also referred to as temperature control.
  • the refrigerant pipe 1 connected to the air conditioning coil 12 is provided with an expansion valve 22 for adjusting the refrigerant flow rate.
  • the humidifier 13 is connected to a water supply port 23 via a water supply pipe 24.
  • the humidifier 13 humidifies the air 15 that has been temperature-controlled by the air conditioning coil 12 using water supplied from the water supply port 23 via the water supply pipe 24.
  • the water supply pipe 24 connected to the humidifier 13 is provided with a water supply valve 21 for adjusting the water supply flow rate.
  • the humidification air path part 19 in which the air conditioning coil 12 and the humidifier 13 are arranged is constituted by a humidification air path upper part 17 and a humidification air path lower part 18 arranged in the vertical direction.
  • the humidification air path upper part 17 covers the air conditioning coil 12 and the humidifier 13 with foamed resin.
  • the humidified air passage lower portion 18 includes a foam tray 16 made of foamed resin.
  • the humidified air passage lower portion 18 is a structure in which a plastic material is simultaneously formed on the water receiving surface of the drain pan 16 to prevent water from entering the foaming resin.
  • the humidified air passage upper portion 17 and the humidified air passage lower portion 18 are fitted in the vertical direction, and integrally form the humidified air passage portion 19.
  • the temperature sensor 14 measures the temperature of the air 15 sucked by the blower 11 on the upstream side of the air conditioning coil 12.
  • the control device 20 controls the overall operation of the indoor unit 4.
  • FIG. 3 is a block diagram illustrating an example of a hardware configuration of the control device 20 in FIG.
  • the control device 20 includes a power supply circuit 31, a blower drive circuit 32, a water supply valve drive circuit 33, an expansion valve drive circuit 34, a sensor detection circuit 35, a function setting circuit 36, and a remote controller.
  • a communication circuit 37, a refrigerant communication circuit 38, and a microcomputer 39 are provided.
  • the power supply circuit 31 is connected to the commercial power supply 30.
  • the power supply circuit 31 generates a power supply for driving the hardware of the control device 20, and the power is supplied from the blower drive circuit 32, the feed water valve drive circuit 33, the expansion valve drive circuit 34, the sensor detection circuit 35, the function setting circuit 36, although it is supplied to each of the remote control communication circuit 37, the refrigerant communication circuit 38, and the microcomputer 39, connection lines are not shown in FIG.
  • the blower drive circuit 32 is connected to the blower 11.
  • the blower drive circuit 32 can perform multistage control of the blower capacity of the blower 11 based on a command from the microcomputer 39. For example, the blower drive circuit 32 can switch the blower capacity of the blower 11 to three levels of weak, medium and strong.
  • the water supply valve drive circuit 33 is connected to the water supply valve 21.
  • the water supply valve drive circuit 33 can control the water supply valve 21 to an open state or a closed state based on a command from the microcomputer 39, and can also control the degree of the open state of the water supply valve 21.
  • the expansion valve drive circuit 34 is connected to the expansion valve 22.
  • the expansion valve drive circuit 34 can control the expansion valve 22 to be in an open state or a closed state based on a command from the microcomputer 39, and can also control the degree of the expansion valve 22 in the open state.
  • the sensor detection circuit 35 is connected to the temperature sensor 14.
  • the sensor detection circuit 35 can send temperature information that is a measurement result of the temperature sensor 14 to the microcomputer 39.
  • the function setting circuit 36 can send, for example, setting information for the drying operation of the humidifier 13 to the microcomputer 39.
  • the remote control communication circuit 37 is connected to the remote control 6.
  • the remote control communication circuit 37 receives, for example, a command for operating or stopping the indoor unit 4, a command for causing the indoor unit 4 to perform a heating operation or a cooling operation, and a designation for setting the wind speed of the indoor unit 4. And a command for humidifying the indoor unit 4 or a command for stopping the humidifying operation can be sent to the microcomputer 39.
  • the remote control communication circuit 37 is provided in the microcomputer 39, for example, whether the indoor unit 4 is in operation or stopped, whether the indoor unit 4 is in heating or cooling operation, and the indoor unit 4 is in operation. It is possible to send information to the remote controller 6 such as the current wind speed, whether the indoor unit 4 is performing or stopping the humidification operation, and the temperature measured by the temperature sensor 14.
  • the refrigerant communication circuit 38 is connected to the outdoor unit 3, the other indoor units 4, the ventilation device 5, and the central monitoring device 8 through the communication line 2.
  • the refrigerant communication circuit 38 sets, for example, a command for operating or stopping the indoor unit 4, a command for causing the indoor unit 4 to perform a heating operation or a cooling operation, and a wind speed of the indoor unit 4 via the communication line 2. And a command for humidifying the indoor unit 4 or a command for stopping the humidifying operation can be received.
  • the refrigerant communication circuit 38 includes the microcomputer 39, for example, the state in which the indoor unit 4 is operated or stopped, the state in which the indoor unit 4 is in the heating operation or the cooling operation, and the indoor unit 4 in operation. Information such as the state of the wind speed, whether the indoor unit 4 is performing or stopping the humidification operation, the implementation state of the drying operation for drying the humidifier 13, and the temperature measured by the temperature sensor 14 2 can be sent out.
  • the humidifier 13 provided in the indoor unit 4 remains moist even after the indoor unit 4 is stopped after the humidifying operation of the indoor unit 4. Moreover, the inside of the main body of the indoor unit 4 tends to become wet due to the evaporation of water. If the indoor unit 4 is left in such a wet state, the humidifier 13 may deteriorate, so the humidifier 13 needs to be dried.
  • the drying operation is performed after the humidification operation of the indoor unit 4 by executing the air conditioning process of FIG. 5 and the drying operation process of FIG. To dry the humidifier 13.
  • FIG. 4 is a block diagram showing an example of the functional configuration of the indoor unit in FIG.
  • the indoor unit 4 includes a control unit 110, a communication unit 111, and a measurement unit 112.
  • the control unit 110 includes a drive command output unit 114, an operation state determination unit 115, and a first transmission unit 116.
  • the communication unit 111 transmits / receives data such as commands and information to / from the remote controller 6, the outdoor unit 3, the indoor unit 4, the ventilator 5, or the central monitoring device 8 via the remote control communication circuit 37 or the refrigerant communication circuit 38.
  • the measuring unit 112 measures temperature information of the temperature sensor 14 via the sensor detection circuit 35.
  • the drive command output unit 114 outputs a drive command for the drying operation of the humidifier 13.
  • the operation state determination unit 115 acquires operation state information indicating the operation state of the outdoor unit 3 from the outdoor unit 3, and determines whether or not the outdoor unit 3 is performing an operation of supplying a refrigerant for heating or humidification. To do.
  • the operation state information includes the operation of the outdoor unit 3 such as a state in which the outdoor unit 3 is operating to supply a refrigerant for heating or humidification, or a state in which the outdoor unit 3 is operating to supply a refrigerant for cooling. This is information indicating the state.
  • the drive command output unit 114 opens the expansion valve 22 during the drying operation.
  • the 1st transmission part 116 transmits the information to the effect of performing the drying operation which opens the expansion valve 22 and dries the humidifier 13 to the outdoor unit 3.
  • FIG. 5 is a flowchart of an air conditioning process executed by the control unit 110 of the indoor unit 4 in FIG.
  • control unit 110 of the indoor unit 4 determines whether or not a command for operating the indoor unit 4 has been received from the remote controller 6 or the central monitoring device 8 (step S01).
  • step S01 when the control unit 110 of the indoor unit 4 receives a command for stopping the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S01), the control of the indoor unit 4 is performed.
  • the unit 110 executes the drying operation process of FIG. 6 described later (step S28).
  • control unit 110 of the indoor unit 4 receives a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 as a result of the determination in step S01 (Yes in step S01), the control of the indoor unit 4 is performed.
  • Unit 110 determines whether or not a command for heating operation of indoor unit 4 is received from remote controller 6 or central monitoring device 8 (step S10).
  • step S10 when the control unit 110 of the indoor unit 4 receives a command for heating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (Yes in step S10), the controller 110 determines whether or not a command for humidifying the indoor unit 4 has been received from the remote controller 6 or the central monitoring device 8 (step S11).
  • step S11 when the control unit 110 of the indoor unit 4 has not received a command for humidifying the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S11), the indoor unit The control unit 110 of No. 4 compares the set temperature of the heating operation with the temperature of the air 15 measured by the temperature sensor 14 to determine whether or not the set temperature of the heating operation is equal to or higher than the temperature of the air 15 ( Step S15).
  • step S15 when the set temperature of the heating operation is equal to or higher than the temperature of the air 15 (Yes in step S15), the control unit 110 of the indoor unit 4 sends a refrigerant supply request for heating to the outdoor unit 3 (Step S18).
  • the refrigerant for heating is a refrigerant that is supplied to the air conditioning coil 12 to heat the air 15.
  • control unit 110 of the indoor unit 4 outputs a drive command for heating operation (step S19).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed.
  • step S15 when the heating operation set temperature is not equal to or higher than the temperature of the air 15 (No in step S15), the control unit 110 of the indoor unit 4 issues a refrigerant supply stop request for heating to the outdoor unit 3 (Step S16).
  • control unit 110 of the indoor unit 4 outputs a drive command for stopping the heating operation (step S17).
  • control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for stopping the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed valve 21 to be closed.
  • a drive command to the expansion valve drive circuit 34 for controlling the expansion valve 22 to the closed state is stopped.
  • step S11 when the control unit 110 of the indoor unit 4 receives a command for humidifying the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (Yes in step S11), The control part 110 transmits the supply request
  • the outdoor unit 3 receives a request for supplying a refrigerant for humidification from the indoor unit 4 or the ventilator 5 in order to effectively perform humidification in the room by the indoor unit 4 or the ventilator 5. Produces the same refrigerant as that supplied during the heating operation of the indoor unit 4 or the ventilator 5 and supplies it to the indoor unit 4 or the ventilator 5. That is, the refrigerant for humidification is a refrigerant that is supplied to the air conditioning coil 12 to heat the air 15.
  • the control unit 110 of the indoor unit 4 outputs a drive command for the humidifying operation (step S13).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed valve 21 to be in an open state.
  • step S13 since the humidifier 13 is in a wet state by opening the water supply valve 21, it is necessary to perform a drying operation. Therefore, the control unit 110 of the indoor unit 4 sets a drying operation request flag for managing whether or not the drying operation is necessary (step S14).
  • Setting the drying operation request flag means setting the drying operation request flag to a value indicating that the drying operation is necessary.
  • step S10 when the control unit 110 of the indoor unit 4 has not received a command for heating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S10), the indoor unit 4 determines whether or not a command for cooling the indoor unit 4 is received from the remote controller 6 or the central monitoring device 8 (step S20).
  • step S20 when the control unit 110 of the indoor unit 4 receives a command for cooling the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (Yes in step S20), The control unit 110 compares the set temperature for the cooling operation with the temperature of the air 15 measured by the temperature sensor 14, and determines whether or not the set temperature for the cooling operation is equal to or lower than the temperature of the air 15 (step S21). ).
  • step S21 when the set temperature of the cooling operation is equal to or lower than the temperature of the air 15 (Yes in step S21), the control unit 110 of the indoor unit 4 sends a refrigerant supply request for cooling to the outdoor unit 3 (Step S24).
  • the refrigerant for cooling is a refrigerant that is supplied to the air conditioning coil 12 to cool the air 15.
  • control unit 110 of the indoor unit 4 outputs a drive command for the cooling operation (step S25).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed.
  • step S21 when the set temperature of the cooling operation is not lower than the temperature of the air 15 (No in step S21), the control unit 110 of the indoor unit 4 issues a refrigerant supply stop request for cooling to the outdoor unit 3 (Step S22).
  • control unit 110 of the indoor unit 4 outputs a drive command for stopping the cooling operation (step S23).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for stopping the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed valve 21 to be closed.
  • step S20 when the control unit 110 of the indoor unit 4 has not received a command for cooling the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S20), the indoor unit 4 control unit 110 determines that it has received a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8, and the control unit 110 of the indoor unit 4 transmits a refrigerant supply stop request to the outdoor unit 3. (Step S26).
  • control unit 110 of the indoor unit 4 outputs a drive command for the air blowing operation (step S27).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed.
  • step S14 step S17, step S19, step S23, step S25 or step S27
  • the control unit 110 of the indoor unit 4 executes the drying operation process of FIG. 6 described later (step S28).
  • step S28 the process returns to step S01, and the control unit 110 of the indoor unit 4 repeats this process.
  • FIG. 6 is a flowchart of the drying operation process executed by the control unit 110 of the indoor unit 4 in FIG.
  • control unit 110 of the indoor unit 4 determines whether or not the drying operation request flag is set and whether or not the water supply valve 21 is closed in order to determine whether or not the drying operation is necessary. Is discriminated (step S31).
  • step S31 when the drying operation is necessary, that is, when the drying operation request flag is set and the water supply valve 21 is closed (Yes in step S31), the control unit 110 of the indoor unit 4 Counts the elapsed time of the drying operation (step S32).
  • the dry operation elapsed time is counted by accumulating count values corresponding to the state of the blower 11 and the expansion valve 22 at regular intervals, for example, every 1 minute.
  • FIG. 8 is a diagram for explaining an example of a count value according to the state of the blower 11 and the expansion valve 22 and an example of a drying operation time necessary for the humidifier 13 to dry after the indoor unit 4 starts the drying operation.
  • the count value is a value for obtaining the elapsed time of the drying operation even when the state of the blower 11 and the expansion valve 22 is changed, and the drying operation time under the condition that is most difficult to dry is used as a reference unit. It is set by the following formula.
  • Count value Maximum drying operation time (9 hours) ⁇ Drying operation time required under each condition For example, when the blowing capacity of the blower 11 is strong and the expansion valve 22 is open, it is necessary until the humidifier 13 dries Is 1 hour, and the count value is 9.
  • the control unit 110 of the indoor unit 4 determines whether or not the elapsed time of the drying operation counted in step S ⁇ b> 32 has exceeded the threshold of the drying operation time necessary until the humidifier 13 is dried, and the humidifier 13. It is determined whether or not a necessary drying operation time has elapsed until the product dries (step 33).
  • the threshold of the drying operation time required until the humidifier 13 dries is the longest time among the drying operation times under the respective conditions in FIG. 8, that is, 9 hours. Therefore, in step S33, it is determined whether or not the elapsed dry operation time has exceeded 9 hours.
  • step S33 when the drying operation time necessary for the humidifier 13 to dry has elapsed (Yes in step S33), the control unit 110 of the indoor unit 4 performs drying to end the drying operation.
  • the operation request flag and the elapsed dry operation time are cleared (step S34). Clearing the dry operation request flag means setting the dry operation request flag to a value indicating that the dry operation is not required.
  • step S33 when the drying operation time necessary for the humidifier 13 to dry has not elapsed (No in step S33), the control unit 110 of the indoor unit 4 does not end the drying operation.
  • the drying operation request flag and the drying operation elapsed time are not cleared.
  • step S31 when the drying operation is unnecessary, that is, when the drying operation request flag is cleared, or when the humidifying operation is performed, that is, when the water supply valve 21 is open (step S31). No), the control unit 110 of the indoor unit 4 does not count the dry operation elapsed time and clears the dry operation elapsed time (step S35).
  • control unit 110 of the indoor unit 4 determines whether a command for operating the indoor unit 4 is received from the remote controller 6 or the central monitoring device 8 (step S40).
  • step S40 when the control unit 110 of the indoor unit 4 has not received a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S40), the indoor unit 4 The controller 110 determines whether or not the drying operation request flag is set in order to determine whether or not the drying operation is necessary (step S41).
  • step S41 when the drying operation is necessary, that is, when the drying operation request flag is set (Yes in step S41), the control unit 110 of the indoor unit 4 requests the supply of the refrigerant for drying. Is transmitted to the outdoor unit 3 (step S42).
  • the refrigerant for drying is a refrigerant that is supplied to the air conditioning coil 12 to heat the air 15.
  • step S42 the outdoor unit 3 that has received the drying operation request, that is, the supply request for the refrigerant for drying, increases the heating load due to the drying operation of the indoor unit 4, so a compressor (not shown) in the outdoor unit 3 is installed. It controls and adjusts the temperature or flow rate of the refrigerant supplied to the indoor unit 4 or the ventilator 5 or the indoor unit 4 and the ventilator 5 via the refrigerant pipe 1 and the branch unit 9.
  • the control unit 110 of the indoor unit 4 acquires information indicating the operation state of the outdoor unit 3 from the outdoor unit 3 and determines whether or not the outdoor unit 3 is performing an operation of supplying a refrigerant for heating or humidification. Is discriminated (step S43).
  • the outdoor unit 3 supplies refrigerant to the plurality of indoor units 4 and the plurality of ventilation devices 5. For this reason, the outdoor unit 3 performs the operation
  • the outdoor unit 3 supplies the refrigerant for cooling from at least one indoor unit 4 or the ventilator 5 without receiving the supply request of the refrigerant for heating or humidification from all the indoor units 4 and all the ventilators 5.
  • an operation for supplying a refrigerant for cooling is performed.
  • the outdoor unit 3 stops the operation when receiving an operation stop request or a dry operation request for the outdoor unit 3 from all the indoor units 4 and all the ventilation devices 5.
  • step S44 the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed. And an output of a drive command to the expansion valve drive circuit 34 for controlling the expansion valve 22 to the open state.
  • drying operation acceleration
  • step S43 when the outdoor unit 3 is not performing an operation for supplying a refrigerant for heating or humidification, that is, when the outdoor unit 3 is performing an operation for supplying a refrigerant for cooling, or When the outdoor unit 3 has stopped operating (No in step S43), the control unit 110 of the indoor unit 4 closes the expansion valve 22 to perform a drying operation (hereinafter referred to as “drying operation (normally ) ") Is output (step S45).
  • drying operation hereinafter referred to as “drying operation (normally ) "
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed.
  • the drying operation (normal) of the indoor unit 4 is executed.
  • step S41 when the drying operation is unnecessary, that is, when the drying operation request flag is cleared (No in step S41), the control unit 110 of the indoor unit 4 issues a refrigerant supply stop request to the outdoor unit. 3 (step S46).
  • control unit 110 of the indoor unit 4 outputs a drive command for stopping operation (step S47).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for stopping the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed valve 21 to be closed.
  • step S40 As a result of the determination in step S40, when the control unit 110 of the indoor unit 4 receives a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (Yes in step S40), step S44, step S45 or After step S47, the control unit 110 of the indoor unit 4 ends this process.
  • FIG. 7 is a diagram for explaining an example of output of a drive command by the drive command output unit 114 in each operation state of the indoor unit 4 described above.
  • the outdoor unit 3 When the outdoor unit 3 performs an operation of supplying a refrigerant for heating or humidification, supplying the refrigerant for heating or humidification to the indoor unit 4 in comparison with a case where the expansion valve 22 is closed. Even if the load on the outdoor unit 3 increases, the increase in power consumption of the outdoor unit 3 is slight. Since the amount of reduction in the power consumption of the indoor unit 4 due to the shortening of the operation time of the blower 11 in the drying operation is larger than the increase in the power consumption of the outdoor unit 3, the entire air conditioning system 100 The power consumption of the battery is reduced, and the power consumption by the drying operation can be reduced.
  • step S15 the control unit 110 of the indoor unit 4 compares the set temperature of the heating operation with the temperature of the air 15 measured by the temperature sensor 14, and performs the heating operation or the heating stop operation. Had decided.
  • step S21 the control unit 110 of the indoor unit 4 compares the set temperature of the cooling operation with the temperature of the air 15 measured by the temperature sensor 14, and performs the cooling operation or the cooling stop operation. Had decided.
  • step S15 and step S21 the control unit 110 of the indoor unit 4 does not detect the temperature of the air 15 measured by the temperature sensor 14, but the indoor temperature of the air-conditioning target space detected by a temperature sensor (not shown) mounted on the remote controller 6.
  • the ventilation device 5 or the central monitoring device 8 in the air conditioning system 100 is acquired via the communication line 2 to perform heating operation. Or you may make it compare with the preset temperature of air_conditionaing
  • the indoor temperature of the air-conditioning target space detected by a temperature sensor (not shown) mounted on the remote controller 7 is acquired by communication, or another indoor unit 4, the ventilation device 5 or the central monitoring in the air conditioning system 100.
  • the room temperature of the air-conditioning target space held by the device 8 may be acquired via the communication line 2 and compared with the set temperature for the heating operation or the cooling operation.
  • the outdoor temperature detected by a temperature sensor (not shown) for measuring the outdoor temperature separately provided in the ventilator 5 is acquired, or another ventilator 5, the outdoor unit 3 or the center in the air conditioning system 100 is acquired.
  • the outside air temperature held by the monitoring device 8 may be acquired via the communication line 2 and compared with the set temperature for the heating operation or the cooling operation.
  • Embodiment 2 an air conditioning system according to Embodiment 2 of the present invention will be described.
  • the control unit 110 of the indoor unit 4 includes the first coefficient of performance determination unit 117, and the indoor unit 4 replaces the drying operation process of FIG.
  • the point that the operation process is performed is omitted from the description of the duplicated configuration and action, and the different configuration and action are described below.
  • FIG. 9 is a block diagram illustrating an example of a functional configuration of the indoor unit of the air-conditioning system according to the second embodiment of the present invention.
  • control unit 110 of the indoor unit 4 includes a first coefficient of performance determination unit 117.
  • the first coefficient of performance determination unit 117 acquires the load status information indicating the load status of the outdoor unit 3 from the outdoor unit 3, and the current coefficient of performance of the operation of supplying the refrigerant for heating or humidifying the outdoor unit 3 Is in the first region.
  • the difference from the power consumption of the indoor unit 4 is the power consumption reduction amount of the indoor unit 4.
  • the first area is between the power consumption reduction amount of the indoor unit 4 and the power consumption increase amount of the outdoor unit 3 due to an increase in the load of the outdoor unit 3.
  • the operation state determination unit 115 when the outdoor unit 3 is performing an operation of supplying a refrigerant for heating or humidification, and as a result of the determination by the first coefficient of performance determination unit 117, the heating of the outdoor unit 3 is performed.
  • the drive command output unit 114 supplies the refrigerant supplied from the outdoor unit 3 to the other indoor units 4 in the room.
  • a drive command for opening the expansion valve 22 is output so as to be supplied to the machine 4.
  • FIG. 10 is a flowchart of the drying operation process executed by the indoor unit of the air-conditioning system according to Embodiment 2 of the present invention. Since steps other than step S50 are the same as the drying operation process of FIG. 6, description other than step S50 is omitted.
  • step S43 when the outdoor unit 3 is operating to supply refrigerant for heating or humidification as a result of the determination in step S43 (Yes in step S43), the first coefficient of performance determination of the indoor unit 4 is performed.
  • the unit 117 acquires information indicating the load status of the outdoor unit 3 from the outdoor unit 3, and the current coefficient of performance (COP: Coefficient Of Performance) of the operation of supplying the refrigerant for heating or humidifying the outdoor unit 3 is obtained. It is determined whether or not the region is within the range of region 1 or region 2 shown in FIG. 11 (step S50).
  • FIG. 11 is a diagram for explaining a coefficient of performance (COP) of an operation for supplying a refrigerant for heating or humidifying the outdoor unit 3.
  • COP coefficient of performance
  • the heating COP changes according to the heating load, and the heating COP becomes low at a low load.
  • the heating COP is calculated by the following formula (1).
  • Heating COP Heating capacity ⁇ Heating power consumption (1)
  • a region 1 indicates a region where the coefficient of performance (COP) of the outdoor unit 3 is equal to or greater than a certain value C1.
  • the difference from the power consumption of the indoor unit 4 is the power consumption reduction amount of the indoor unit 4.
  • Region 1 is between the power consumption reduction amount of the indoor unit 4 and the power consumption increase amount of the outdoor unit 3 due to an increase in the load of the outdoor unit 3.
  • Reduction amount of power consumption of indoor unit 4> This is a region where a relationship with the increase of power consumption of the outdoor unit 3 is established, and is a region where the power consumption of the entire air conditioning system 100 can be reduced.
  • FIG. 12 is a diagram for explaining the power consumption reduction amount of the indoor unit 4.
  • the power consumption of the indoor unit 4 when the blowing capacity of the blower 11 is increased and the expansion valve 22 is closed in the drying operation requires 3 hours for the humidifier 13 to dry.
  • Power consumption of blower 11 1.5 kW ⁇ 3 hours 4.5 kWh It becomes.
  • the air blowing capacity of the blower 11 is made strong, and the power consumption of the indoor unit 4 when the expansion valve 22 is opened requires 1 hour for the humidifier 13 to dry.
  • FIG. 13 is an enlarged view of region 2 in FIG.
  • the region 2 is a region where the coefficient of performance is lower than C1, but the heating load increases when the indoor unit 4 opens the expansion valve 22, and the coefficient of performance improves accordingly.
  • the power consumption of the outdoor unit 3 can be suppressed, and the power consumption of the entire air conditioning system 100 can be reduced even if the coefficient of performance is less than C1.
  • the load R2 of the outdoor unit 3 is 10 kW and the coefficient of performance C2 is 2.5
  • step S50 when the current coefficient of performance (COP) of the operation of supplying the refrigerant for heating or humidifying the outdoor unit 3 is within the range of the region 1 or the region 2 as a result of the determination in step S50 ( Yes in step S50), the process proceeds to step S44. Thereby, the drying operation (acceleration) of the indoor unit 4 is executed.
  • COP current coefficient of performance
  • step S50 when the current coefficient of performance (COP) of the operation for supplying the refrigerant for heating or humidifying the outdoor unit 3 is not within the range of region 1 or region 2 (No in step S50).
  • the process proceeds to step S45.
  • the drying operation (normal) of the indoor unit 4 is executed.
  • FIG. 14 is a diagram for explaining the output of the drive command by the drive command output unit 114 during the drying operation of the indoor unit 4.
  • the expansion valve 22 during the drying operation of the indoor unit 4 is an operation in which the operation state of the outdoor unit 3 supplies refrigerant for heating or humidification, and heating or humidification of the outdoor unit 3 is performed.
  • the open state is entered.
  • Embodiment 3 an air conditioning system according to Embodiment 3 of the present invention will be described.
  • the control unit 110 of the indoor unit 4 does not include the first transmission unit 116 but includes the second coefficient of performance determination unit 118 and the second transmission unit 119.
  • the indoor unit performs the drying operation process of FIG. 16 instead of the drying operation process of FIG. Different configurations and operations will be described.
  • FIG. 15 is a block diagram illustrating an example of a functional configuration of the indoor unit of the air-conditioning system according to the third embodiment of the present invention.
  • control unit 110 of the indoor unit 4 includes a second coefficient of performance determination unit 118 and a second transmission unit 119.
  • the second coefficient of performance determination unit 118 obtains load status information indicating the load status of the outdoor unit 3 from the outdoor unit 3 and supplies the current coefficient of performance of the operation of supplying the refrigerant for heating or humidifying the outdoor unit 3 Is in the second region.
  • the indoor unit 4 adjusts the power consumption of the indoor unit 4 when the expansion valve 22 is opened and the humidifier 13 is dried, and the indoor unit 4 adjusts the degree of the open state of the expansion valve 22 to dry the humidifier 13.
  • the difference from the power consumption of the indoor unit 4 at the time is the increase in power consumption of the indoor unit 4.
  • the second region is between the increase in power consumption of the indoor unit 4 and the reduction in power consumption of the outdoor unit 3 due to the change in the load of the outdoor unit 3. Reduced power consumption of outdoor unit 3> This is a region where the relationship of increased power consumption of indoor unit 4 is established.
  • the operation state determination unit 115 when the outdoor unit 3 is performing an operation of supplying a refrigerant for heating or humidification, and as a result of the determination by the first coefficient of performance determination unit 117, the heating of the outdoor unit 3 is performed.
  • the drive command output unit 114 supplies the refrigerant supplied from the outdoor unit 3 to the other indoor units 4 to the indoor unit 4.
  • a drive command for adjusting the degree of open state of the expansion valve 22 is output.
  • the second transmission unit 119 sends information indicating that the drying operation for drying the humidifier 13 is performed by opening the expansion valve 22 or adjusting the degree of the expansion valve 22 to be opened. Send to.
  • FIG. 16 is a flowchart of a drying operation process executed by the indoor unit of the air-conditioning system according to Embodiment 3 of the present invention. Since steps other than step S51 and step S52 are the same as the drying operation process of FIG.
  • step S50 when the current coefficient of performance (COP) of the operation of supplying the refrigerant for heating or humidifying the outdoor unit 3 is within the range of region 1 or region 2 as a result of the determination in step S50 (step In S50, the second coefficient of performance determination unit 118 of the indoor unit 4 determines whether it is necessary to adjust the degree of the open state of the expansion valve 22 (step S51). For example, the second coefficient of performance determination unit 118 of the indoor unit 4 acquires information indicating the load status of the outdoor unit 3 from the outdoor unit 3 and supplies refrigerant for heating or humidifying the outdoor unit 3. It is determined whether or not the current coefficient of performance (COP) is within the area near C6 shown in FIG.
  • COP current coefficient of performance
  • FIG. 17 is an enlarged view of region 1 in FIG.
  • the expansion valve 22 is opened in the drying operation of the indoor unit 4, the increase in the heating load of the outdoor unit 3 is 1 kW, so that the heating load R6 is 51 kW and the coefficient of performance C6 is 3.95.
  • the degree of open state of the expansion valve 22 is adjusted in the drying operation of the indoor unit 4 so that the degree of open state is 90%.
  • the amount of heating of the air 15 by the air conditioning coil 12 decreases, and the time until the humidifier 13 dries becomes longer. For example, the time until the humidifier 13 is dried is 1.1 hours.
  • the reduction in power consumption can be made larger than 2.9 kWh, which is a reduction in power consumption when the degree of opening of the expansion valve 22 is 100%.
  • step S51 when it is necessary to adjust the degree of the open state of the expansion valve 22 as a result of the determination in step S51 (Yes in step S51), the drive command output unit 114 of the indoor unit 4 A drive command for adjusting the degree of the open state is output (step S52). Thereby, the degree of the open state of the expansion valve 22 is adjusted.
  • step S51 when it is not necessary to adjust the degree of the open state of the expansion valve 22 (No in step S51), or after step S52, the process proceeds to step S44. Thereby, the drying operation (acceleration) of the indoor unit 4 is executed.
  • Embodiment 4 FIG. Next, an air conditioning system according to Embodiment 4 of the present invention will be described.
  • the control unit 110 of the indoor unit 4 includes a counting unit 120, and the indoor unit 4 executes the drying operation process of FIG. 19 instead of the drying operation process of FIG.
  • the description of the duplicated configuration and operation will be omitted, and the description of the different configuration and operation will be given below.
  • FIG. 18 is a block diagram illustrating an example of a functional configuration of the indoor unit of the air-conditioning system according to the fourth embodiment of the present invention.
  • control unit 110 of the indoor unit 4 includes a counting unit 120.
  • the counting unit 120 counts the operation time of the drying operation of the humidifier 13 according to the output content of the drive command by the drive command output unit 114. In the first embodiment, the count value is counted, but in the fourth embodiment, the count is performed in minutes.
  • FIG. 19 is a flowchart of the drying operation process executed by the indoor unit of the air-conditioning system according to Embodiment 4 of the present invention.
  • the drying operation process executed by the indoor unit of the air-conditioning system according to the fourth embodiment is different in order of processing from the drying operation process executed by the indoor unit of the air-conditioning system according to the first embodiment.
  • the drive command output unit 114 of the indoor unit 4 outputs a drive command for the drying operation (step S501). Thereby, the drying operation of the indoor unit 4, that is, the above-described drying operation (normal) is executed.
  • step S502 whether the operation state determination unit 115 of the indoor unit 4 acquires information indicating the operation state of the outdoor unit 3 from the outdoor unit 3 and performs the operation in which the outdoor unit 3 supplies refrigerant for heating or humidification. It is determined whether or not (step S502).
  • step S502 when the outdoor unit 3 performs an operation of supplying a refrigerant for heating or humidification (Yes in step S502), the drive command output unit 114 of the indoor unit 4 A drive command is output to open the window (step S503). As a result, the expansion valve 22 is opened.
  • the first transmission unit 116 of the indoor unit 4 informs the outdoor unit 3 that the expansion valve 22 is opened and the indoor unit 4 is performing the drying operation, that is, the drying operation (acceleration) described above. Transmit (step S504).
  • step S502 when the outdoor unit 3 is not performing an operation for supplying a refrigerant for heating or humidification, that is, when the outdoor unit 3 is performing an operation for supplying a refrigerant for cooling,
  • the drive command output unit 114 of the indoor unit 4 does not output a drive command for opening the expansion valve 22 (step S505). . For this reason, the expansion valve 22 remains closed.
  • step S504 or step S505 the counting unit 120 of the indoor unit 4 counts the operation time of the drying operation of the humidifier 13 according to the output content of the drive command by the drive command output unit 114 (step S506).
  • FIG. 20 is a diagram for explaining an example of the counting time of the drying operation time of the humidifier 13.
  • the expansion valve 22 When the expansion valve 22 is in the closed state, if the blowing capacity of the blower 11 increases from weak to medium to strong, the operation time of the humidifier 13 for the drying operation decreases from 9 hours to 6 hours to 3 hours.
  • the expansion valve 22 When the expansion valve 22 is in the open state, the operating time of the drying operation of the humidifier 13 decreases from 3 hours to 2 hours to 1 hour when the blowing capacity of the blower 11 increases from weak to medium to strong. Every time the drying operation is performed for 1 minute, the operation time of the drying operation is added by the count time shown in FIG.
  • the humidifier 13 can be reliably dried. Since the humidifier 13 cannot be dried when the blower 11 is stopped, the counting time of the drying operation of the humidifier 13 is set to 0 minutes.
  • control unit 110 of the indoor unit 4 determines whether or not the counting time of the drying operation of the humidifier 13 has reached a time necessary for the humidifier 13 to dry (step S507). ).
  • step S507 As a result of the determination in step S507, when the count time of the drying operation of the humidifier 13 has not reached the time required for the humidifier 13 to dry (No in step S507), the process returns to step S502. .
  • the drive command output unit of the indoor unit 4 114 outputs a drive command for stopping the drying operation (step S508). Thereby, the drying operation of the indoor unit 4 is stopped. Thereafter, this process is terminated.
  • FIG. 21 is a timing diagram for explaining an example of the operation of the air-conditioning system according to Embodiment 4 of the present invention.
  • an indoor unit 4a, an indoor unit 4b, and an indoor unit 4c are connected to the outdoor unit 3.
  • the indoor unit 4b and the indoor unit 4c are not provided with the humidifier 13, and the indoor unit 4b and the indoor unit 4c It is assumed that the machine 4 c does not perform the drying operation of the humidifier 13.
  • the indoor unit 4a performs a humidifying operation
  • the indoor unit 4b performs a heating operation
  • the indoor unit 4c is stopped.
  • a refrigerant supply request for humidification is transmitted from the indoor unit 4a to the outdoor unit 3
  • a refrigerant supply request for heating is transmitted from the indoor unit 4b
  • an operation stop request for the outdoor unit 3 is transmitted from the indoor unit 4c.
  • Sent As a result, the outdoor unit 3 is operated to supply a refrigerant for heating or humidification.
  • the operation state of the indoor unit 4 changes from the humidifying operation to stop, and a drying operation for drying the humidifier 13 is performed.
  • the machine 3 is operated to supply a refrigerant for heating or humidification.
  • the indoor unit 4b When the indoor unit 4b receives a command for stopping the indoor unit 4b from the remote controller 6b at time t2, a request for stopping the operation of the outdoor unit 3 is transmitted from the indoor unit 4b to the outdoor unit 3. Since an outdoor unit 3 operation stop request is transmitted from the indoor unit 4a, the indoor unit 4b, and the indoor unit 4c to the outdoor unit 3, the outdoor unit 3 stops operating.
  • the indoor unit 4c When the indoor unit 4c receives a command for heating the indoor unit 4c from the remote controller 6c at time t3, a request for supplying a refrigerant for heating is transmitted from the indoor unit 4c to the outdoor unit 3.
  • the outdoor unit 3 receives a supply request of the refrigerant for heating from the indoor unit 4c, the outdoor unit 3 is in an operation of supplying a refrigerant for heating or humidification, and the outdoor unit 3 is heated or humidified by the indoor unit 4a.
  • the water supply valve 21 In order to perform the operation of supplying the refrigerant, the water supply valve 21 is closed, the blower 11 is operated with a high blowing capacity, the expansion valve 22 is opened, and the drying operation is performed.
  • the operation time of the drying operation of the humidifier 13 is counted according to the output content of the drive command by the drive command output unit 114, and the count time of the drying operation of the humidifier 13 is humidified.
  • the drying operation of the indoor unit 4 is stopped. Thereby, even when the driving
  • Embodiment 5 an air conditioning system according to Embodiment 5 of the present invention will be described.
  • the control unit 110 of the indoor unit 4 includes the first setting information acquisition unit 121 and the second setting information acquisition unit 122, and the indoor unit 4 is the drying unit shown in FIG.
  • operation process differs from Embodiment 1 mentioned above.
  • a description of the duplicated configuration and operation will be omitted, and a description of a different configuration and operation will be given below.
  • FIG. 22 is a block diagram showing an example of the functional configuration of the indoor unit of the air-conditioning system according to Embodiment 5 of the present invention.
  • control unit 110 of the indoor unit 4 includes a first setting information acquisition unit 121 and a second setting information acquisition unit 122.
  • the first setting information acquisition unit 121 acquires the setting information of the open condition of the expansion valve 22.
  • the drive command output unit 114 outputs a drive command for the drying operation of the humidifier 13 based on the setting information of the open condition of the expansion valve 22 acquired by the first setting information acquisition unit 121.
  • the second setting information acquisition unit 122 acquires setting information on the operating conditions of the blower 11.
  • the drive command output unit 114 outputs a drive command for the drying operation of the humidifier 13 based on the setting information of the operation condition of the blower 11 acquired by the second setting information acquisition unit 122.
  • FIG. 23 is a flowchart of the drying operation process executed by the indoor unit of the air-conditioning system according to Embodiment 5 of the present invention.
  • FIG. 24 is a diagram for explaining the setting information of the opening condition of the expansion valve 22 by the function setting circuit 36.
  • setting 1 is a setting for performing the drying operation of the humidifier 13 by performing the blowing operation of the indoor unit 4 by the user without performing the drying operation after the humidification operation is stopped.
  • the setting 2 is a setting in which the drying operation of the indoor unit 4 is performed regardless of the area of the heating COP of the outdoor unit 3 if the outdoor unit 3 is an operation of supplying a refrigerant for heating or humidification. .
  • Setting 3 is an operation in which the outdoor unit 3 supplies refrigerant for heating or humidification, and if the heating COP region of the outdoor unit 3 is within the region 1 or region 2, the drying operation of the indoor unit 4 is performed. It is a setting to be performed.
  • the setting 4 is a setting in which the expansion valve 22 is closed and the drying operation of the indoor unit 4, that is, the above-described drying operation (normal) is performed regardless of the operation state of the outdoor unit 3.
  • the setting 5 is a setting for performing the drying operation of the indoor unit 4, that is, the above-described drying operation (acceleration) by opening the expansion valve 22 regardless of the operation state of the outdoor unit 3. For example, in the setting 5, the user who wants to stop the drying operation of the indoor unit 4 in a short time can be set.
  • FIG. 25 is a diagram for explaining setting information of the operating conditions of the blower 11 by the function setting circuit 36.
  • setting 1, setting 2 and setting 3 are settings for fixing the blowing capacity of the blower 11 in the drying operation of the indoor unit 4. If setting 4, setting 5 and setting 6 are operations in which the outdoor unit 3 supplies refrigerant for heating or humidification, the blowing capacity of the blower 11 is fixed regardless of the area of the heating COP of the outdoor unit 3.
  • the drying operation of the indoor unit 4 is not executed when the outdoor unit 3 is operated and the outdoor unit 3 is performing an operation other than the operation of supplying the refrigerant for heating or humidification.
  • the setting 7, setting 8 and setting 9 are operations in which the outdoor unit 3 supplies refrigerant for heating or humidification, and the region of the heating COP of the outdoor unit 3 is within the range of the region 1 or the region 2,
  • the air blower 11 is operated with the air blowing capacity fixed, and the outdoor unit 3 performs an operation other than the operation of supplying the refrigerant for heating or humidification, or the area of the heating unit COP of the outdoor unit 3 is the area 1 or 2
  • the setting is such that the drying operation of the indoor unit 4 is not executed.
  • setting 1 setting 2 and setting 3
  • setting 5, and setting 6 since warm air is supplied indoors in the drying operation of the indoor unit 4, a decrease in the indoor temperature can be suppressed.
  • settings 7, 8 and 9 power consumption can be suppressed in the drying operation of the indoor unit 4.
  • the drive command output unit 114 of the indoor unit 4 includes the opening condition setting information of the expansion valve 22 acquired by the first setting information acquisition unit 121 and the operating condition of the blower 11 acquired by the second setting information acquisition unit 122. Based on the setting information, a drive command for the drying operation is output (step S603). Thereby, the drying operation of the indoor unit 4 is executed based on the setting information of the opening condition of the expansion valve 22 and the setting information of the operating condition of the blower 11 described above. Thereafter, this process is terminated.
  • the opening condition of the expansion valve 22 and the operation condition of the blower 11 can be set flexibly, the user can set the operation of the drying operation according to the use situation. .
  • Embodiment 6 FIG.
  • the indoor unit 4 provided with the blower 11 has been described.
  • FIG. 26 is a diagram schematically illustrating a configuration example of a ventilation device of the air-conditioning system according to the sixth embodiment of the present invention.
  • the ventilation device 5 is configured by incorporating a heat exchanger 51, an exhaust blower 52, and an air supply blower 53 into a main body box.
  • the supply air blower 53 is disposed in the supply air passage 54 and supplies air from the outdoor intake port (OA) 55 to the indoor discharge port (SA) 56 through the heat exchanger 51.
  • the exhaust blower 52 is disposed in the exhaust air passage 57 and exhausts air from the indoor suction port (RA) 58 through the heat exchanger 51 to the outdoor discharge port (EA) 59.
  • the heat exchanger 51 performs air-to-air heat exchange between the supplied air and the discharged air.
  • the exhaust blower 52 and the supply blower 53 are independently driven and controlled by the control device 60.
  • An air conditioning coil 61 and a humidifier 62 are disposed on the outlet side of the heat exchanger 51 in the supply air passage 54.
  • An expansion valve 66 that adjusts the flow rate of refrigerant supplied to the air conditioning coil 61 via the refrigerant pipe 1 by the control device 60, and a water supply valve 65 that controls the amount of water supplied from the water supply port 67 to the humidifier 62 via the water supply pipe 68.
  • a humidity sensor 64 that measures indoor humidity is disposed on the RA side of the heat exchanger 51.
  • FIG. 27 is a block diagram illustrating an example of a hardware configuration of the control device in FIG.
  • control device 60 includes a microcomputer 70, an air supply fan drive circuit 71, and an exhaust fan drive circuit 72.
  • the air supply fan drive circuit 71 is connected to the air supply fan 53.
  • the air supply fan drive circuit 71 can perform multi-stage control of the air supply capacity of the air supply fan 53 based on a command from the microcomputer 70.
  • the air supply blower drive circuit 71 can switch the air supply capacity of the air supply blower 53 to three stages of weak, medium and strong.
  • the exhaust blower drive circuit 72 is connected to the exhaust blower 52.
  • the exhaust blower drive circuit 72 can perform multi-stage control of the blower capability of the exhaust blower 52 based on a command from the microcomputer 70. For example, the exhaust blower drive circuit 72 can switch the blower capacity of the exhaust blower 52 to three levels of weak, medium and strong.
  • the microcomputer 70 generates a drive command to the supply air blower drive circuit 71 for driving the supply air blower 53 and a drive command to the exhaust blower drive circuit 72 for driving the exhaust blower 52.
  • the microcomputer 70 outputs a drive command to the supply air blower drive circuit 71 for driving the supply air blower 53, and outputs a drive command to the exhaust blower drive circuit 72 for driving the exhaust blower 52. I do.
  • Embodiment 7 FIG.
  • the indoor unit 4 acquires the operation information and load information of the outdoor unit 3, and the degree of the open / closed state and the open state of the expansion valve 22 during the drying operation ( Hereinafter, the degree of the open state is referred to as “opening degree”).
  • the central monitoring device 8 connected to the outdoor unit 3, the indoor unit 4 and the ventilator 5 by the communication line 2 is mounted on each indoor unit 4 and each ventilator 5 during the drying operation. A case where the open / close state and the opening degree of the expansion valve 22 are determined will be described.
  • the indoor unit 4 includes the operation state determination unit 115.
  • the central monitoring device 8 may include a functional unit similar to the operation state determination unit 115. 3 may be provided.
  • FIG. 28 is a sequence diagram of processing executed by the air-conditioning system according to Embodiment 7 of the present invention.
  • Humidification operation stop operation is performed by the remote controller 6 connected to the indoor unit 4, and the indoor unit 4 receives the command from the remote controller 6 (sequence SQ01).
  • the indoor unit 4 stops the humidification operation and starts the drying operation when the humidification operation stop operation is performed. At this time, the indoor unit 4 increases the blowing capacity of the blower 11, closes the expansion valve 22, closes the water supply valve 21, and performs a drying operation (sequence SQ02).
  • the indoor unit 4 has started the drying operation to the central monitoring device 8, information on the “heating load increase amount of the outdoor unit 3” according to the open / closed state of the expansion valve 22, information on “time required for the drying operation”, and Information on “power consumption required for drying operation” is transmitted by a drying operation request command (sequence SQ03).
  • FIG. 29 is a diagram for explaining an example of the content of data that the indoor unit 4 transmits to the central monitoring device 8 in sequence SQ03.
  • the power consumption when the blower capacity of the blower 11 of the indoor unit 4 is increased is 1.5 kW.
  • the expansion valve 22 is “0% open, that is, closed”
  • the heating load increase amount of the outdoor unit 3 determined by the heating capacity of the indoor unit 4 is “0 kW”
  • the time required for the drying operation is “9 hours”.
  • the information “0 kWh” or “when the expansion valve 22 is opened by 100%, 4 kW, 3 hours, 4.5 kWh” is transmitted from the indoor unit 4 to the central monitoring device 8 by the drying operation request command.
  • the data to be transmitted has three patterns of the opening degree of the expansion valve 22 of 0%, 50% and 100%.
  • the opening degree of the expansion valve 22 may be finer, for example, in increments of 10%.
  • the central monitoring device 8 receives the drying operation request command from the indoor unit 4, the operation state of the outdoor unit 3 and the opening degree of the expansion valve 22 of the indoor unit 4 are set to 0%, 50%, and 100%.
  • An operation state request command for requesting the amount of power consumption of the outdoor unit 3 with respect to the heating load increase amount of the outdoor unit 3 is transmitted to the outdoor unit 3 (sequence SQ04).
  • the operation state of the outdoor unit 3 requested from the central monitoring device 8 in sequence SQ04, and the indoor unit 4 are in the dry operation, and the opening degree of the expansion valve 22 is reduced to 0%, 50%, and 100%.
  • Each heating load increase amount at that time that is, the power consumption increase amount of the outdoor unit 3 for 0 kW, 2 kW, and 4 kW is transmitted to the central monitoring device 8 by the operation state response command (sequence SQ05).
  • FIG. 30 is a diagram for explaining an example of the content of data that the outdoor unit 3 transmits to the central monitoring device 8 in sequence SQ05.
  • the outdoor unit 3 calculates the increase in power consumption of the outdoor unit 3 when the indoor unit 4 is operated at each heating load increase, that is, at 0 kW, 2 kW, and 4 kW.
  • the current heating load of the outdoor unit 3 is 50 kW and the COP is 4.0
  • the heating load increase amount of the indoor unit 4 is 0 kW
  • the heating load increase amount of the indoor unit 4 is 2 kW
  • the COP of the outdoor unit 3 decreases to 3.9
  • the heating load increase amount of the indoor unit 4 is 4 kW
  • the COP of the outdoor unit 3 decreases to 3.8
  • the information “power consumption is increased by 1.7 kW when 4 kW” is transmitted from the outdoor unit 3 to the central monitoring device 8 by the operation state response command.
  • the heating load increase amount due to the drying operation of the indoor unit 4 is small with respect to the current heating load, for example, 50 kW in the above-described example, and the COP fluctuation is extremely small
  • the calculation of the power consumption is simplified.
  • the current COP may be used for calculation. That is, in the above-described example, COP may be set to 4.0, and the power consumption amount for each condition may be calculated.
  • the central monitoring device 8 receives the information “the amount of increase in power consumption of the outdoor unit 3” received from the outdoor unit 3 in sequence SQ05, the “drying operation time” information received from the indoor unit 4 in sequence SQ03, and the “drying”. Based on the information of “power consumption required for operation”, the drying operation of the indoor unit 4 is determined (sequence SQ06).
  • the central monitoring device 8 calculates an increase or decrease in the power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 0%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 13.5 kWh from the information “power consumption required for the drying operation” received in sequence SQ03.
  • the central monitoring device 8 calculates the increase / decrease in power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 50%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 9.0 kWh based on the information “power consumption required for the drying operation” received in sequence SQ03.
  • the central monitoring device 8 calculates increase / decrease in power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 100%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 4.5 kWh based on the information “power consumption required for the drying operation” received in sequence SQ03.
  • the central monitoring device 8 determines that the indoor unit 4 is allowed to dry when the expansion valve 22 is only 100% open when the power consumption of the entire air conditioning system is the lowest.
  • the central monitoring device 8 dries the opening command value, that is, the information on the opening 100% so that the indoor unit 4 performs the drying operation at “opening 100%”. It transmits with the operation response command (sequence SQ07).
  • the indoor unit 4 performs the drying operation based on the information on the opening command value received from the central monitoring device 8 in the sequence SQ07. Thereby, the indoor unit 4 makes the blowing capacity of the blower 11 strong, opens the expansion valve 22 to 100%, closes the water supply valve 21, and performs the drying operation (sequence SQ08).
  • the indoor unit 4 transmits information indicating that “the opening degree of the expansion valve 22 is opened by 100%” to the outdoor unit 3 (sequence SQ09).
  • the outdoor unit 3 determines the opening degree of the expansion valve 22 of the indoor unit 4 based on the information received from the indoor unit 4 in sequence SQ09 that “the opening degree of the expansion valve 22 is opened by 100%”. Since the heating load is increased by 100%, the compressor (not shown) in the outdoor unit 3 is controlled and supplied to at least one of the indoor unit 4 and the ventilator 5 via the refrigerant pipe 1 and the branch unit 9. The temperature or flow rate of the refrigerant to be adjusted is adjusted (sequence SQ10).
  • the outdoor unit 3 controls a compressor (not shown) in the outdoor unit 3 according to the change in the heating load in the sequence SQ11, and the refrigerant pipe 1 to the indoor unit 4 or the ventilator 5 or the indoor unit 4 and the ventilator 5
  • the refrigerant is supplied via the branch unit 9.
  • the heating load in this case is “12 kW”, which is the sum of “2 kW” of the indoor unit 4 that is performing the drying operation and the heating load “10 kW” of the other indoor unit 4 or the ventilation device 5 (sequence). SQ12).
  • the heating load fluctuates in sequence SQ11, so that the indoor unit 4 is in a dry operation, and each heating load increase amount when the opening degree of the expansion valve 22 becomes 0%, 50% or 100%, That is, the power consumption increase amount of the outdoor unit 3 with respect to 0 kW, 2 kW, or 4 kW is recalculated.
  • the operating state of the outdoor unit 3 and the recalculated indoor unit 4 are in the dry operation, and each heating load increase amount when the opening degree of the expansion valve 22 becomes 0%, 50% or 100%, that is, 0 kW,
  • the increase in power consumption of the outdoor unit 3 for 2 kW or 4 kW is transmitted to the central monitoring device 8 by the operation state response command (sequence SQ13).
  • FIG. 31 is a diagram for explaining an example of the content of data transmitted by the outdoor unit 3 to the central monitoring device 8 in the sequence SQ13.
  • the heating load increase amount of the indoor unit 4 is 2 kW
  • the COP of the outdoor unit 3 increases to 2.65
  • the heating load increase amount of the indoor unit 4 is 4 kW
  • the COP of the outdoor unit 3 increases to 2.75
  • the information “power consumption is increased by 1.1 kW at 4 kW” is transmitted from the outdoor unit 3 to the central monitoring device 8 by the operation state response command.
  • the central monitoring device 8 receives the information “the increase in power consumption of the outdoor unit 3” received from the outdoor unit 3 in sequence SQ13, the “drying operation time” information received from the indoor unit 4 in sequence SQ03, and the “drying”. Based on the information on “power consumption required for operation”, the drying operation of the indoor unit 4 is determined (sequence SQ14).
  • the central monitoring device 8 calculates an increase or decrease in the power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 0%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 13.5 kWh from the information “power consumption required for the drying operation” received in sequence S03.
  • the central monitoring device 8 calculates the increase / decrease in power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 50%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 9.0 kWh based on the information “power consumption required for the drying operation” received in sequence SQ03.
  • the central monitoring device 8 calculates increase / decrease in power consumption of the entire air conditioning system when the expansion valve 22 of the indoor unit 4 is “when the expansion valve 22 is open by 100%”.
  • the power consumption required for the drying operation of the indoor unit 4 is 4.5 kWh based on the information “power consumption required for the drying operation” received in sequence SQ03.
  • the central monitoring device 8 determines that the indoor unit 4 is changed to dry operation when the expansion valve 22 is only 100% open when the power consumption of the entire air conditioning system is the lowest.
  • the central monitoring device 8 dries the opening command value, that is, the information on the opening 100% so that the indoor unit 4 performs the drying operation at “opening 100%”. Transmission is performed by an operation response command (sequence SQ15).
  • the indoor unit 4 performs the drying operation based on the information on the opening command value received from the central monitoring device 8 in the sequence SQ15. Thereby, the indoor unit 4 makes the blowing capacity of the blower 11 strong, opens the expansion valve 22 to 100%, closes the water supply valve 21, and performs the drying operation (sequence SQ16).
  • the indoor unit 4 transmits information indicating that “the opening degree of the expansion valve 22 is opened by 100%” to the outdoor unit 3 (sequence SQ17).
  • the outdoor unit 3 determines that the opening degree of the expansion valve 22 of the indoor unit 4 is based on the information received from the indoor unit 4 in sequence SQ17 to “open the opening degree of the expansion valve 22 by 100%”. Since the heating load is reduced by 100%, the compressor (not shown) in the outdoor unit 3 is controlled and supplied to at least one of the indoor unit 4 and the ventilator 5 via the refrigerant pipe 1 and the branch unit 9. The temperature or flow rate of the refrigerant to be adjusted is adjusted (sequence SQ18).
  • the indoor unit 4 ends the drying operation when the operation time of the drying operation has passed a predetermined time (sequence SQ19).
  • the indoor unit 4 notifies the central monitoring device 8 that the drying operation has been completed (sequence SQ20).
  • the indoor unit 4 transmits information indicating that “the opening degree of the expansion valve 22 is opened by 0%” to the outdoor unit 3 upon completion of the drying operation (sequence SQ21).
  • the outdoor unit 3 has the opening degree of the expansion valve 22 of the indoor unit 4 based on the information received from the indoor unit 4 in sequence SQ21 that “the opening degree of the expansion valve 22 is opened by 0%”. %, The heating load is reduced, and the compressor (not shown) in the outdoor unit 3 is controlled and supplied to at least one of the indoor unit 4 and the ventilator 5 via the refrigerant pipe 1 and the branch unit 9. The temperature or flow rate of the refrigerant is adjusted (sequence SQ22).
  • FIG. 32 is a flowchart of the drying operation process executed by the indoor unit in the seventh embodiment. Steps S31 to S34 are the same as the drying operation process of FIG.
  • step S60 the control unit 110 of the indoor unit 4 determines whether a command for operating the indoor unit 4 is received from the remote controller 6 or the central monitoring device 8.
  • step S60 when the control unit 110 of the indoor unit 4 has not received a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (No in step S60), the indoor unit 4 The controller 110 determines whether or not the drying operation request flag is set in order to determine whether or not the drying operation is necessary (step S61).
  • step S61 when the drying operation is necessary, that is, when the drying operation request flag is set (Yes in step S61), the control unit 110 of the indoor unit 4 changes from the need for the drying operation to the necessity. In order to determine whether or not it has been performed, it is determined whether or not there is no previous value of the drying operation request flag (step S62).
  • step S62 when the drying operation has changed from unnecessary to necessary, that is, when there is no previous value of the drying operation request flag (Yes in step S62), the control unit 110 of the indoor unit 4 performs the central monitoring device 8. A drying operation request is transmitted to (step S63).
  • step S63 After the control unit 110 of the indoor unit 4 transmits the drying operation request to the central monitoring device 8 in step S63, the control unit 110 of the indoor unit 4 continues until the drying operation response is transmitted from the central monitoring device 8. In order to perform the drying operation with the expansion valve 22 opened by 0%, the opening command value is set to 0% (step S64).
  • the control unit 110 of the indoor unit 4 outputs a drive command for the drying operation (step S65).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for operating the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed water valve 21 to be closed.
  • step S62 when the drying operation does not change as necessary, that is, when the previous value of the drying operation request flag is present (No in step S62), the control unit 110 of the indoor unit 4 starts from the central monitoring device 8.
  • the control unit 110 of the indoor unit 4 updates the opening command value with the received value (step S66).
  • step S66 when the control unit 110 of the indoor unit 4 has not received the opening command value from the central monitoring device 8 by the dry operation response command, the opening command value is not changed.
  • step S66 when the opening command value is updated in step S66, the control unit 110 of the indoor unit 4 transmits information on the drying operation operation to the outdoor unit 3, and sets the opening of the expansion valve 22 according to the opening command value. By controlling, it notifies that the heating load of the outdoor unit 3 fluctuates (step S67), and proceeds to the process of step S65.
  • step S61 when the drying operation is unnecessary, that is, when the drying operation request flag is cleared (No in step S61), the control unit 110 of the indoor unit 4 centrally monitors the information on the drying operation stop. It transmits to the apparatus 8 (step S68).
  • control unit 110 of the indoor unit 4 transmits the drying operation operation information to the outdoor unit 3 and closes the expansion valve 22. By doing so, it is notified that the heating load of the outdoor unit 3 fluctuates (step S69).
  • control unit 110 of the indoor unit 4 outputs a drive command for stopping the operation (step S70).
  • the control unit 110 of the indoor unit 4 outputs a drive command to the blower drive circuit 32 for stopping the blower 11 and a drive command to the feed valve drive circuit 33 for controlling the feed valve 21 to be closed.
  • step S60 when the control unit 110 of the indoor unit 4 receives a command for operating the indoor unit 4 from the remote controller 6 or the central monitoring device 8 (Yes in step S60), the control in step S65 or step S70 is performed. Later, the control unit 110 of the indoor unit 4 updates the previous value of the drying operation request flag for determining the change in the drying operation request flag with the current value of the drying operation request flag (step S71), and the indoor unit 4 The control unit 110 ends this processing.
  • the central monitoring device 8 calculates the power consumption in the entire air conditioning system, and the drying operation is performed.
  • the opening command value of the expansion valve 22 is transmitted to the indoor unit 4 so that the power consumption due to is minimized. Thereby, the power consumption in the whole air conditioning system can be reduced.
  • the calculation of power consumption in the entire air conditioning system may be performed by the outdoor unit 3 instead of the central monitoring device 8.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit and change the part.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Humidification (AREA)

Abstract

L'invention concerne un système de climatisation (100), pourvu d'une unité extérieure (3) et d'une pluralité d'unités intérieures (4) comprenant une unité intérieure (4a) qui est pourvue d'un humidificateur. L'unité extérieure (3) fournit un fluide frigorigène à la pluralité d'unités intérieures (4). Un régleur détendeur pour commander le débit du fluide frigorigène fourni à l'unité intérieure (4a) est disposé entre l'unité intérieure (4a) et l'unité extérieure (3). L'humidificateur humidifie l'air qui a été régulé en température par le fluide frigorigène fourni par l'unité extérieure (3). Une unité de détermination d'état de fonctionnement acquiert des informations d'état de fonctionnement indiquant l'état de fonctionnement de l'unité extérieure (3), et détermine si l'unité extérieure (3) exécute une opération d'alimentation du fluide frigorigène en vue d'une humidification ou d'un chauffage. Une unité de sortie de commande d'entraînement démarre une opération de séchage pour sécher l'humidificateur après que le fonctionnement de l'humidificateur est arrêté. Dans l'opération de séchage, tandis que l'unité extérieure (3) effectue une opération d'alimentation du fluide frigorigène en vue d'une humidification ou d'un chauffage, l'unité de sortie de commande d'entraînement délivre en sortie une commande pour mettre le régleur détendeur dans un état ouvert.
PCT/JP2017/008195 2017-03-01 2017-03-01 Système de climatisation et procédé de commande d'un système de climatisation WO2018158895A1 (fr)

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PCT/JP2017/008195 WO2018158895A1 (fr) 2017-03-01 2017-03-01 Système de climatisation et procédé de commande d'un système de climatisation
JP2019502372A JP6732098B2 (ja) 2017-03-01 2017-03-01 空気調和システムおよび空気調和システムの制御方法

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PCT/JP2017/008195 WO2018158895A1 (fr) 2017-03-01 2017-03-01 Système de climatisation et procédé de commande d'un système de climatisation

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040055325A1 (en) * 2002-01-24 2004-03-25 Johnson Robert Edwin Oscillating evaporative cooling device
WO2006129646A1 (fr) * 2005-05-30 2006-12-07 Daikin Industries, Ltd. Systeme de climatisation
JP2007303744A (ja) * 2006-05-11 2007-11-22 Hitachi Appliances Inc 空気調和機
JP2009014250A (ja) * 2007-07-04 2009-01-22 Sanyo Electric Co Ltd 空気調和装置、空気除菌装置、空気調和装置の制御方法および制御プログラム
JP2010243102A (ja) * 2009-04-08 2010-10-28 Panasonic Corp 加湿装置およびその防カビ方法
US20150300673A1 (en) * 2014-04-22 2015-10-22 NCB Autohaus Incorporated Humidifier control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5863619B2 (ja) * 2012-10-16 2016-02-16 三菱電機株式会社 空気調和機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040055325A1 (en) * 2002-01-24 2004-03-25 Johnson Robert Edwin Oscillating evaporative cooling device
WO2006129646A1 (fr) * 2005-05-30 2006-12-07 Daikin Industries, Ltd. Systeme de climatisation
JP2007303744A (ja) * 2006-05-11 2007-11-22 Hitachi Appliances Inc 空気調和機
JP2009014250A (ja) * 2007-07-04 2009-01-22 Sanyo Electric Co Ltd 空気調和装置、空気除菌装置、空気調和装置の制御方法および制御プログラム
JP2010243102A (ja) * 2009-04-08 2010-10-28 Panasonic Corp 加湿装置およびその防カビ方法
US20150300673A1 (en) * 2014-04-22 2015-10-22 NCB Autohaus Incorporated Humidifier control system

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