WO2021140608A1 - 空気調和システム - Google Patents

空気調和システム Download PDF

Info

Publication number
WO2021140608A1
WO2021140608A1 PCT/JP2020/000441 JP2020000441W WO2021140608A1 WO 2021140608 A1 WO2021140608 A1 WO 2021140608A1 JP 2020000441 W JP2020000441 W JP 2020000441W WO 2021140608 A1 WO2021140608 A1 WO 2021140608A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fan
conditioned space
rotation speed
conditioning system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/000441
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雄輝 土田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2021569660A priority Critical patent/JP7330298B2/ja
Priority to PCT/JP2020/000441 priority patent/WO2021140608A1/ja
Publication of WO2021140608A1 publication Critical patent/WO2021140608A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • This disclosure relates to an air conditioning system that takes in outside air into the air-conditioned space.
  • Patent Document 1 discloses an air conditioner that takes in outside air to perform air conditioning.
  • the air conditioner of Patent Document 1 is provided with an air volume control valve provided in an air supply duct, and is configured to control the opening degree of the air volume control valve according to the CO 2 concentration in the air-conditioned space.
  • the indoor temperature can be controlled by changing the amount of air blown into the air-conditioned space according to the CO 2 concentration.
  • the amount of outside air taken in depends on the preset air volume. Therefore, the amount of outside air taken in is constant regardless of the conditions in the air-conditioned space. Further, even in the case where the air volume control valve is provided to control the air supply air volume as in Patent Document 1, the maximum value of the air volume is obtained when the opening of the air volume control valve is fully open, so that the space is within the air conditioning target space.
  • the range of the amount of outside air taken into the air conditioner is limited. When the amount of outside air taken in is constant or the range of the amount of outside air is limited, the supply of air may be insufficient or excessive depending on the number of people in the air-conditioned space.
  • This disclosure is for solving the above-mentioned problems, and provides an air conditioning system capable of adjusting the amount of outside air taken in according to the condition of the air-conditioned space.
  • the air conditioning system includes a detection device that detects the condition of the air-conditioned space, a fan that takes in outside air into the introduction duct that communicates with the outdoors and blows it out to the air supply duct that communicates with the air-conditioned space, and the air-conditioned space. It is provided with a control device that changes the rotation speed of the fan according to a change in the situation.
  • the amount of outside air taken in can be adjusted according to the condition of the air-conditioned space, and the amount of outside air taken in can be adjusted to be insufficient or excessive. Can be suppressed.
  • FIG. It is a schematic block diagram of the air conditioning system which concerns on Embodiment 1.
  • FIG. It is a schematic block diagram of the indoor unit which concerns on Embodiment 1.
  • FIG. It is a control block diagram of the air conditioning system which concerns on Embodiment 1.
  • FIG. It is a table which shows an example of the relationship between the command frequency transmitted by a motor control unit, and the rotation speed of a fan. It is a flowchart which shows the operation of the air-conditioning system which concerns on Embodiment 1.
  • FIG. It is a schematic block diagram of the air conditioning system which concerns on modification 1.
  • FIG. It is a schematic block diagram of the air conditioning system which concerns on modification 2.
  • FIG. It is a schematic block diagram of the air conditioning system which concerns on modification 3.
  • FIG. 1 is a schematic configuration diagram of an air conditioning system according to the first embodiment.
  • the white arrows in FIG. 1 indicate the air flow.
  • the air conditioning system of the present embodiment is installed indoors 50 of a building 5 such as a factory.
  • the air conditioning system includes an indoor unit 1 arranged outside the air-conditioned space 2 of the indoor 50, a CO 2 detection device 21 arranged in the air-conditioned space 2, a person detection device 22, and a person detection device 22. It includes a remote controller 23.
  • the indoor unit 1 is connected to an introduction duct 31 that introduces outside air from a first air supply port 301 that communicates with the outside, and an air supply duct 32 that supplies air to the air-conditioned space 2.
  • the air supply duct 32 and the exhaust duct 33 that exhausts air from the first exhaust port 302 that communicates with the outside are connected to the air-conditioned space 2.
  • FIG. 2 is a schematic configuration diagram of the indoor unit 1 according to the first embodiment.
  • the indoor unit 1 includes a heat exchanger 11, a fan 12, a motor 13, an inverter 14, and a control device 15. Further, the housing of the indoor unit 1 is provided with a second air supply port 101 communicating with the introduction duct 31 and a second exhaust port 102 communicating with the air supply duct 32.
  • the heat exchanger 11 exchanges heat between the refrigerant circulating inside and the outside air taken into the indoor unit 1 from the second air supply port 101.
  • the heat exchanger 11 includes a compressor and a heat exchanger, and is connected to an outdoor unit (not shown) arranged outdoors by a refrigerant pipe to form a part of a refrigerant circuit.
  • the heat exchanger 11 functions as a condenser to heat the outside air during the heating operation, and functions as an evaporator to cool the outside air during the cooling operation.
  • the heat exchanger 11 is arranged in the housing of the indoor unit 1 so as to face the second air supply port 101.
  • the fan 12 is, for example, a sirocco fan, an axial fan, or a cross flow fan, and is driven by a motor 13.
  • the fan 12 is covered with a fan casing 120.
  • the fan 12 is arranged between the heat exchanger 11 and the second exhaust port 102 in the housing of the indoor unit 1.
  • the motor 13 is an electric motor that drives the fan 12.
  • the fan 12 is connected to the shaft of the motor 13 and rotates by the rotation of the shaft of the motor 13.
  • the inverter 14 is a power supply device capable of changing the rotation speed of the motor 13.
  • the inverter 14 is connected to the motor 13 via a power line.
  • the inverter 14 changes the electric power supplied to the motor 13 according to the command frequency received from the control device 15.
  • the control device 15 is composed of dedicated hardware such as an ASIC or FPGA, an arithmetic unit such as a microcomputer that executes a program stored in a memory, or both.
  • the control device 15 transmits a command frequency to the inverter 14 and controls the rotation speed of the fan 12 according to the situation of the air-conditioned space 2.
  • the air-conditioned space 2 is, for example, a room in a factory.
  • a third air supply port 201 communicating with the air supply duct 32 and a third exhaust port 202 communicating with the exhaust duct 33 are provided.
  • a CO 2 detection device 21 that detects the concentration of CO 2 in the air-conditioning target space 2
  • a person detection device 22 that detects information about a person in the air-conditioning target space 2
  • an air conditioning system A remote controller 23 into which information used for the operation of the above is input is arranged.
  • the CO 2 detection device 21 and the person detection device 22 are detection devices that detect the state of the air-conditioned space 2.
  • the CO 2 detection device 21 is an optical, electrochemical or semiconductor CO 2 concentration meter that detects carbon dioxide in the air-conditioned space 2 and measures the concentration.
  • the CO 2 detection device 21 is communicably connected to the control device 15 of the indoor unit 1 and transmits the detected CO 2 concentration to the control device 15.
  • the person detection device 22 detects the entry and exit of a person in the air-conditioned space 2 as information about the person in the air-conditioned space 2.
  • the person detection device 22 of the present embodiment includes an entry detector 221 installed at the entrance / exit 203 of the air-conditioned space 2 and an exit detector 222.
  • the entry detector 221 and the exit detector 222 are card readers that read an IC card for entering and exiting the room, and detect the entry and exit of a person into the air-conditioned space 2 by reading the IC card.
  • entry / exit of the air-conditioned space 2 is possible only by using an IC card.
  • the entry detector 221 and the exit detector 222 are communicably connected to the control device 15 of the indoor unit 1 and transmit information regarding the entry and exit of a person into the air-conditioned space 2 to the control device 15.
  • the remote controller 23 includes, for example, an input unit and a display unit including a touch panel. By operating the remote controller 23, the user can input information used for the operation of the air conditioning system. Information input to the remote controller 23, the target density Mt of CO 2 in the air conditioning target space 2, the operation start time Ts and the end time Te of the fan 12, the initial rotational speed R0 start of operation of the fan 12, and the space to be air-conditioned It is the threshold Nth of the increase / decrease number of the number of people in 2.
  • the operation start time Ts and end time Te of the fan 12 are, for example, the start time and the end time of the factory.
  • the operation start time Ts of the fan 12 may be 15 minutes before the start time of the factory, and the end time Te may be 15 minutes after the end time.
  • the threshold value Nth may be set according to the floor area of the air conditioning target space 2. As an example, when the floor area is 30 m 2 , the threshold value Nth is set to 5, and when the floor area is 60 m 2 , the threshold value Nth is set to 10. Further, the recommended value of such information may be presented to the remote controller 23.
  • the remote controller 23 is communicably connected to the control device 15 of the indoor unit 1 and transmits the input information to the control device 15.
  • the remote controller 23 may be a device dedicated to the air conditioning system, or a mobile device such as a mobile phone or a tablet may be used as the remote controller 23.
  • the fan 12 is driven by the motor 13 to introduce outside air from the first air supply port 301 and pass through the introduction duct 31. It flows from the second air supply port 101 into the indoor unit 1. Then, the outside air heated or cooled by the heat exchanger 11 in the indoor unit 1 is blown out from the second exhaust port 102 to the air supply duct 32 by the fan 12, passes through the air supply duct 32, and passes through the third air supply port 201. Air is supplied into the air-conditioned space 2. The air in the air-conditioned space 2 flows from the third exhaust port 202 to the exhaust duct 33, and is exhausted to the outside from the first exhaust port 302. As a result, ventilation in the air-conditioned space 2 is performed.
  • FIG. 3 is a control block diagram of the air conditioning system according to the first embodiment.
  • the control device 15 is communicably connected to the CO 2 detection device 21, the human detection device 22, and the remote controller 23 by a communication line or wirelessly such as Bluetooth (registered trademark). Further, the control device 15 is connected to the inverter 14 by a power line. As shown in FIG. 3, the control device 15 includes a storage unit 151, an increase / decrease calculation unit 152, a determination unit 153, and a motor control unit 154.
  • the storage unit 151 is a non-volatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM.
  • the storage unit 151 stores the information input to the remote controller 23.
  • the storage unit 151 may be configured separately from the control device 15.
  • the increase / decrease calculation unit 152 calculates an increase / decrease in the number of people in the air-conditioned space 2 based on the detection results of the entry detector 221 and the exit detector 222.
  • the entry detector 221 detects the entry of a person into the air-conditioned space 2, it transmits a signal “1” to the increase / decrease calculation unit 152.
  • the exit detector 222 detects the exit of a person from the air-conditioned space 2, the exit detector 222 transmits a signal "0" to the increase / decrease calculation unit 152.
  • the increase / decrease calculation unit 152 When the increase / decrease calculation unit 152 receives the signal "1”, it adds 1 to the increase / decrease number N, and when it receives the signal "0", it subtracts 1 from the increase / decrease number N to obtain the air conditioning target space 2. Count the increase or decrease in the number of people in. The increase / decrease number N is reset to 0 when the rotation speed of the fan 12 is changed or when the operation of the fan 12 is completed.
  • the determination unit 153 is based on the increase / decrease number N of the number of people in the air-conditioning target space 2 calculated by the increase / decrease calculation unit 152 and the CO 2 concentration Ms in the air-conditioning target space 2 detected by the CO 2 detection device 21. Then, it is determined whether the rotation speed of the fan 12 is increased, decreased, or maintained. The determination result by the determination unit 153 is transmitted to the motor control unit 154.
  • the motor control unit 154 transmits a command frequency according to the determination result of the determination unit 153 to the inverter 14.
  • FIG. 4 is a table showing an example of the relationship between the command frequency transmitted by the motor control unit 154 and the rotation speed of the fan 12.
  • the motor control unit 154 increases the command frequency by one step.
  • the motor control unit 154 reduces the command frequency by one step.
  • the inverter 14 supplies electric power to the motor 13 according to the command frequency of the motor control unit 154, and the motor 13 rotates the fan 12 according to the supplied electric power.
  • the increase / decrease calculation unit 152, the determination unit 153, and the motor control unit 154 are functional units realized by, for example, the control device 15 executing a program.
  • the increase / decrease calculation unit 152, the determination unit 153, and the motor control unit 154 may be realized by individual circuits.
  • FIG. 5 is a flowchart showing the operation of the air conditioning system according to the first embodiment.
  • the operation of the air conditioning system is performed by the control device 15.
  • the user operates the remote controller 23 before the start of operation to input the target concentration Mt, the operation start time Ts, the end time Te, the initial rotation speed R0, and the threshold value Nth, and the storage unit 151. It is assumed that it is remembered in.
  • the control device 15 determines whether or not the current time is the start time Ts stored in the storage unit 151 (S1). If it is not the start time Ts (S1: NO), it waits until the start time Ts.
  • the fan 12 is driven by the motor 13 (S2).
  • the motor control unit 154 transmits a command frequency corresponding to the initial rotation speed R0 to the inverter 14 so that the fan 12 rotates at the initial rotation speed R0 stored in the storage unit 151.
  • the inverter 14 supplies electric power to the motor 13 according to a command frequency.
  • the CO 2 detection device 21 detects the CO 2 concentration in the air-conditioned space 2 (S3).
  • CO 2 concentration Ms detected by the CO 2 detector 21 is transmitted to the control device 15.
  • the increase / decrease calculation unit 152 calculates the increase / decrease number N of the number of people in the air-conditioned space 2 based on the detection result of the person detection device 22 (S4).
  • the increase / decrease number N is counted based on the signals transmitted from the entry detector 221 and the exit detector 222.
  • the increase / decrease number N at the start of operation of the fan 12 is set to 0.
  • the determination unit 153 compares the detected concentration Ms detected by the CO 2 detection device 21 with the target concentration Mt (S5).
  • the target concentration range obtained by adding and subtracting the constant ⁇ to the target concentration Mt is compared with the detected concentration Ms.
  • the rotation speed of the fan 12 is reduced (S6).
  • the ventilation volume may be reduced. Therefore, by lowering the rotation speed of the fan 12, the amount of air sent to the air-conditioned space 2 is reduced.
  • the determination unit 153 determines that the rotation speed of the fan 12 is to be reduced, and transmits the determination result to the motor control unit 154.
  • the motor control unit 154 reduces the command frequency to the inverter 14 by one step based on the determination result of the determination unit 153. For example, in the example shown in FIG. 4, when the initial rotation speed R0 corresponds to the rotation speed R3, the motor control unit 154 changes the command frequency from F3 to F2. As a result, the rotation speeds of the motor 13 and the fan 12 are reduced from R3 to R2.
  • the rotation speed of the fan 12 is increased (S7).
  • the CO 2 concentration in the air-conditioned space 2 is higher than the target concentration Mt, it is necessary to increase the ventilation volume. Therefore, by increasing the rotation speed of the fan 12, the amount of air sent to the air-conditioned space 2 is increased.
  • the determination unit 153 determines that the rotation speed of the fan 12 is to be increased, and transmits the determination result to the motor control unit 154.
  • the motor control unit 154 increases the command frequency to the inverter 14 by one step based on the determination result of the determination unit 153. For example, in the example shown in FIG. 4, when the initial rotation speed R0 corresponds to the rotation speed R3, the motor control unit 154 changes the command frequency from F3 to F4. As a result, the rotation speeds of the motor 13 and the fan 12 are increased from R3 to R4.
  • the determination unit 153 rotates the fan 12 based on the increase / decrease number N of the number of people in the air conditioning target space 2. Change the number. In this case, the increase / decrease number N calculated in step S4 is compared with the threshold value Nth stored in the storage unit 151 (S8). Then, when the increase / decrease number N of the number of people in the air-conditioned space 2 is less than ⁇ Nth with the threshold value Nth as a negative value (N ⁇ Nth), the rotation speed of the fan 12 is reduced (S6). On the other hand, when the increase / decrease number N of the number of people in the air-conditioned space 2 is larger than the threshold value Nth (N> Nth), the rotation speed of the fan 12 is increased (S7).
  • Ventilation volume can be increased or decreased according to the increase or decrease of.
  • the increase / decrease number N of the number of people in the air-conditioned space 2 is equal to or greater than the negative threshold value ⁇ Nth and equal to or less than the threshold value Nth ( ⁇ Nth ⁇ N ⁇ Nth)
  • the step is performed without changing the rotation speed of the fan 12. Move to S10.
  • steps S6 and S7 after changing the rotation speed of the fan 12, the increase / decrease number N is reset to 0 (S9). Then, it is determined whether or not the current time is the end time Te (S10), and if it is not the end time Te (S10: NO), the processes of steps S3 to S9 are repeated until the end time Te is reached.
  • the increase / decrease number N is reset to 0 (S11). Then, the fan 12 is stopped (S12).
  • the compressor of the outdoor unit may be started and stopped.
  • the rotation speed of the fan 12 is changed according to the CO 2 concentration in the air-conditioned space 2 and the increase / decrease in the number of people.
  • the amount of outside air taken in can be adjusted according to the situation in the air-conditioned space 2, and insufficient air supply and excessive air supply to the air-conditioned space 2 can be suppressed.
  • by suppressing excessive air supply it is possible to reduce the air conditioning load and reduce power consumption.
  • the indoor unit 1 may be configured not to include the heat exchanger 11.
  • the air conditioning system includes only one of the CO 2 detection device 21 and the person detection device 22, and even if the rotation speed of the fan 12 is changed based on either the CO 2 concentration or the increase / decrease in the number of people. Good.
  • the number of the third air supply port 201 and the third exhaust port 202 in the air-conditioned space 2 is not limited to one, and may be two or more.
  • the target concentration Mt, the operation start time Ts, the end time Te, the initial rotation speed R0, and the threshold value Nth are input via the remote controller 23, but the configuration is limited to this. is not it. Any of the target concentration Mt, the operation start time Ts, the end time Te, the initial rotation speed R0, and the threshold value Nth may be preset and stored in the storage unit 151. Further, in the above embodiment, the threshold value Nth is used as a positive threshold value Nth and a negative threshold value ⁇ Nth, but two threshold values, a positive threshold value Nth 1 and a negative threshold value ⁇ Nth 2, are input and stored. May be good.
  • FIG. 6 is a schematic configuration diagram of the air conditioning system according to the first modification.
  • an infrared sensor or a camera may be used as the person detection device 22A.
  • the increase / decrease calculation unit 152 obtains the number of people in the air-conditioned space 2 from the thermal image acquired by the infrared sensor or the visible light image acquired by the camera, and calculates the increase / decrease number N.
  • this modification it is possible to more accurately detect an increase or decrease in the number of people in the air-conditioned space 2.
  • a temperature sensor, a humidity sensor, a microphone, or the like may be used as the person detection device 22A.
  • the increase / decrease calculation unit 152 calculates the increase / decrease number N of the number of people in the air-conditioned space 2 from the changes in temperature, humidity, or volume detected by these sensors.
  • a temperature sensor, a humidity sensor, an odor sensor, a dust sensor, or the like may be used as a device for detecting the state of the air-conditioned space 2.
  • FIG. 7 is a schematic configuration diagram of the air conditioning system according to the modified example 2.
  • the air conditioning system may further include an air volume adjusting device 24 such as a damper or a fan provided at the third air supply port 201 of the air conditioning target space 2.
  • the air volume adjusting device 24 shall be controlled by the remote controller 23 or the control device 15.
  • a temperature sensor 25 for detecting the temperature in the air-conditioned space 2 is provided in the air-conditioned space 2, and the opening degree or the number of rotations of the air volume adjusting device 24 is controlled according to the detection result of the temperature sensor 25. It may be configured. As a result, the amount of air supplied to the air-conditioned space 2 can be finely adjusted, and comfort is improved.
  • FIG. 8 is a schematic configuration diagram of the air conditioning system according to the third modification of the first embodiment.
  • the air conditioning system may perform air conditioning in a plurality of air-conditioned spaces 2.
  • the fan 12 is driven by the motor 13 to introduce outside air from the first air supply port 301, pass through the introduction duct 31, and enter the room from the second air supply port 101. It flows into the machine 1.
  • the outside air heated or cooled by the heat exchanger 11 in the indoor unit 1 is blown out from the second exhaust port 102 to the air supply duct 32 by the fan 12, passes through the air supply duct 32, and passes through the first air conditioning target space 2A.
  • Air is supplied to the second air-conditioned space 2B, respectively.
  • the air in the first air-conditioned space 2A and the second air-conditioned space 2B flows to the exhaust duct 33 and is exhausted to the outside from the first exhaust port 302.
  • the determination unit 153 of the control device 15 determines the average value of the CO 2 concentration Ms detected in the first air-conditioned space 2A and the CO 2 concentration Ms detected in the second air-conditioned space 2B.
  • the rotation speed of the fan 12 is changed by comparing with the target concentration Mt. Further, the determination unit 153 compares the average value of the increase / decrease number N of the number of people in the first air conditioning target space 2A and the increase / decrease number N of the number of people in the second air conditioning target space 2B with the threshold value Nth. , The rotation speed of the fan 12 is changed. Further, in this case, the air volume adjusting device 24 is individually controlled according to the temperatures of the first air-conditioned space 2A and the second air-conditioned space 2B.
  • the number of air-conditioned spaces 2 is not limited to two, and may be three or more.
  • FIG. 9 is a schematic configuration diagram of the air conditioning system according to the fourth modification of the first embodiment.
  • the air conditioning system may include a plurality of indoor units 1.
  • the air conditioning system of this modified example includes a first indoor unit 1A and a second indoor unit 1B.
  • the configuration of the first indoor unit 1A and the second indoor unit 1B is the same as that of the indoor unit 1 of the first embodiment.
  • the connection between the first indoor unit 1A and the second indoor unit 1B and the introduction duct 31 and the air supply duct 32 is the same as that in the first embodiment.
  • Two third air supply ports 201 are provided in the air-conditioned space 2, and outside air is sent from the first indoor unit 1A and the second indoor unit 1B, respectively.
  • the fan 12 is simultaneously based on the CO 2 concentration Ms detected in the air-conditioned space 2 and the increase / decrease number N of the number of people in the control device 15 provided in the first indoor unit 1A and the second indoor unit 1B, respectively. Change the number of rotations of.
  • the control device 15 of the first indoor unit 1A and the control device 15 of the second indoor unit 1B may alternately change the rotation speed of the fan 12. According to this modification, it is possible to air-condition the wider air-conditioning target space 2.
  • the number of indoor units 1 is not limited to two, and may be three or more.
  • the above-described embodiments and modifications can be combined as appropriate.
  • 1 Indoor unit 1A 1st indoor unit, 1B 2nd indoor unit, 2 Air conditioning target space, 2A 1st air conditioning target space, 2B 2nd air conditioning target space, 5 buildings, 11 heat exchangers, 12 fans, 13 motors, 14 Inverter, 15 control device, 21 CO 2 detector, 22, 22 A person detector, 23 remote controller, 24 air volume controller, 25 temperature sensor, 31 introduction duct, 32 air supply duct, 33 exhaust duct, 50 indoors, 101st 2 Air supply port, 102 2nd exhaust port, 120 fan casing, 151 storage unit, 152 increase / decrease calculation unit, 153 judgment unit, 154 motor control unit, 201 3rd air supply port, 202 3rd exhaust port, 203 entrance / exit, 221 Entering detector, 222 Exiting detector, 301 1st air supply port, 302 1st exhaust port.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
PCT/JP2020/000441 2020-01-09 2020-01-09 空気調和システム Ceased WO2021140608A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021569660A JP7330298B2 (ja) 2020-01-09 2020-01-09 空気調和システム
PCT/JP2020/000441 WO2021140608A1 (ja) 2020-01-09 2020-01-09 空気調和システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/000441 WO2021140608A1 (ja) 2020-01-09 2020-01-09 空気調和システム

Publications (1)

Publication Number Publication Date
WO2021140608A1 true WO2021140608A1 (ja) 2021-07-15

Family

ID=76787771

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/000441 Ceased WO2021140608A1 (ja) 2020-01-09 2020-01-09 空気調和システム

Country Status (2)

Country Link
JP (1) JP7330298B2 (https=)
WO (1) WO2021140608A1 (https=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484606A (zh) * 2022-02-17 2022-05-13 宁波奥克斯电气股份有限公司 一种新风空调及其控制方法、装置和可读存储介质
CN114543253A (zh) * 2022-03-29 2022-05-27 宁波奥克斯电气股份有限公司 制冷模式新风控制方法及装置、空调器及可读存储介质
CN114562790A (zh) * 2022-03-29 2022-05-31 宁波奥克斯电气股份有限公司 制热模式新风控制方法及其装置、空调器及可读存储介质
JP2023144182A (ja) * 2022-03-28 2023-10-11 パナソニックＩｐマネジメント株式会社 空調システム
WO2023207533A1 (zh) * 2022-04-26 2023-11-02 青岛海尔空调器有限总公司 空调器室内机中新风风机的控制方法和空调器室内机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118654025B (zh) * 2024-08-20 2024-11-22 安徽省金鼎矿业股份有限公司 一种矿业用风机控制系统及控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976010A (en) * 1997-06-27 1999-11-02 York International Corporation Energy efficient air quality maintenance system and method
JP2001141281A (ja) * 1999-11-12 2001-05-25 Matsushita Refrig Co Ltd 店舗用空気調和システム
CN1719137A (zh) * 2004-07-08 2006-01-11 乐金电子(天津)电器有限公司 换气系统风量的控制方法
KR100765164B1 (ko) * 2006-06-26 2007-10-12 삼성전자주식회사 환기장치의 운전제어방법
JP2011002132A (ja) * 2009-06-17 2011-01-06 Daikin Industries Ltd 調湿システム
JP2013124788A (ja) * 2011-12-13 2013-06-24 Daikin Industries Ltd 換気システム
JP2018173221A (ja) * 2017-03-31 2018-11-08 ダイキン工業株式会社 空調システム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976010A (en) * 1997-06-27 1999-11-02 York International Corporation Energy efficient air quality maintenance system and method
JP2001141281A (ja) * 1999-11-12 2001-05-25 Matsushita Refrig Co Ltd 店舗用空気調和システム
CN1719137A (zh) * 2004-07-08 2006-01-11 乐金电子(天津)电器有限公司 换气系统风量的控制方法
KR100765164B1 (ko) * 2006-06-26 2007-10-12 삼성전자주식회사 환기장치의 운전제어방법
JP2011002132A (ja) * 2009-06-17 2011-01-06 Daikin Industries Ltd 調湿システム
JP2013124788A (ja) * 2011-12-13 2013-06-24 Daikin Industries Ltd 換気システム
JP2018173221A (ja) * 2017-03-31 2018-11-08 ダイキン工業株式会社 空調システム

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484606A (zh) * 2022-02-17 2022-05-13 宁波奥克斯电气股份有限公司 一种新风空调及其控制方法、装置和可读存储介质
CN114484606B (zh) * 2022-02-17 2023-08-04 宁波奥克斯电气股份有限公司 一种新风空调及其控制方法、装置和可读存储介质
JP2023144182A (ja) * 2022-03-28 2023-10-11 パナソニックＩｐマネジメント株式会社 空調システム
JP7811697B2 (ja) 2022-03-28 2026-02-06 パナソニックＩｐマネジメント株式会社 空調システム
CN114543253A (zh) * 2022-03-29 2022-05-27 宁波奥克斯电气股份有限公司 制冷模式新风控制方法及装置、空调器及可读存储介质
CN114562790A (zh) * 2022-03-29 2022-05-31 宁波奥克斯电气股份有限公司 制热模式新风控制方法及其装置、空调器及可读存储介质
CN114562790B (zh) * 2022-03-29 2023-09-01 宁波奥克斯电气股份有限公司 制热模式新风控制方法及其装置、空调器及可读存储介质
CN114543253B (zh) * 2022-03-29 2023-09-01 宁波奥克斯电气股份有限公司 制冷模式新风控制方法及装置、空调器及可读存储介质
WO2023207533A1 (zh) * 2022-04-26 2023-11-02 青岛海尔空调器有限总公司 空调器室内机中新风风机的控制方法和空调器室内机

Also Published As

Publication number Publication date
JPWO2021140608A1 (https=) 2021-07-15
JP7330298B2 (ja) 2023-08-21

Similar Documents

Publication Publication Date Title
JP7330298B2 (ja) 空気調和システム
JP5665781B2 (ja) 空気調和システム
US20210207826A1 (en) Air-conditioning system
JP2001304645A (ja) 空気調和装置
JP2838941B2 (ja) ダクト式空気調和機
KR101958713B1 (ko) 공기조화기의 제어방법
CN105765311A (zh) 供排型换气装置
US20190203971A1 (en) Heat exchange-type ventilation device
JP2013113473A (ja) 熱交換換気装置
JP5804689B2 (ja) 空気調和機
JP2004150679A (ja) 空気調和システム
WO2019193680A1 (ja) 空気調和システム
CN105518396A (zh) 空调系统
JP2018040501A (ja) 空気調和機
JPH10232040A (ja) 空調システム装置
JP2022097186A (ja) 空気調和装置
JP6557101B2 (ja) 空気調和機
JPH1183112A (ja) 空気調和機
JP2017180872A (ja) 制御装置
KR20120083140A (ko) 공기조화시스템 및 그 제어방법
JP3205098B2 (ja) 空気調和機
KR20120019279A (ko) 칠러를 위한 디멘드 제어 시스템 및 그 제어방법
KR102575089B1 (ko) 공기조화 시스템
US20240310071A1 (en) Ventilation system
WO2017168511A1 (ja) 制御装置、空調システム、空調方法及びプログラム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911700

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021569660

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911700

Country of ref document: EP

Kind code of ref document: A1