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WO2019038827A1 - Système de climatisation, unité hydraulique et relais de transmission - Google Patents

Système de climatisation, unité hydraulique et relais de transmission Download PDF

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Publication number
WO2019038827A1
WO2019038827A1 PCT/JP2017/029926 JP2017029926W WO2019038827A1 WO 2019038827 A1 WO2019038827 A1 WO 2019038827A1 JP 2017029926 W JP2017029926 W JP 2017029926W WO 2019038827 A1 WO2019038827 A1 WO 2019038827A1
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WO
WIPO (PCT)
Prior art keywords
unit
heat
indoor units
hydro
transmission
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/JP2017/029926
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English (en)
Japanese (ja)
Inventor
邦夫 小原
▲高▼田　茂生
麻里夫 佐藤
豊大 薮田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to PCT/JP2017/029926 priority Critical patent/WO2019038827A1/fr
Publication of WO2019038827A1 publication Critical patent/WO2019038827A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle

Definitions

  • the present invention relates to an air conditioning system having a heat source unit and a plurality of indoor units, and a hydro unit and a transmission repeater included in the air conditioning system.
  • Patent Literature 1 As a conventional air conditioning system, one having a configuration in which an outdoor unit and a plurality of indoor units are connected and the outdoor unit and the plurality of indoor units are connected to the same communication system is known (for example, Patent Literature 1).
  • one indoor unit of the plurality of indoor units is set as the main indoor unit, and the operator operates the remote controller connected to the main indoor unit to The indoor unit can instruct the other indoor units to operate.
  • the number of indoor unit addresses is determined in advance, and in the air conditioning system disclosed in Patent Document 1, the number of indoor units connected to the same communication system is limited. .
  • the congestion rate of communication traffic may increase, and a communication error may occur. For this reason, only a predetermined number of indoor units can be connected to the air conditioner due to the restriction of the communication address and the communication traffic.
  • the present invention has been made to solve the problems as described above, and provides an air conditioning system, a hydro unit, and a transmission relay that can expand the number of indoor units installed.
  • a heat source unit generating heat, a plurality of indoor units to which the heat generated by the heat source unit is supplied, and a heat amount necessary for the plurality of indoor units are calculated Communication between the operation capacity setting device required for the machine and two or more indoor units of the plurality of indoor units and the operation capacity setting device is relayed, and the required heat amount required by the two or more indoor units is added up And a transmission repeater for transmitting the total heat amount to the driving capacity setting device.
  • a water heat exchanger in which a refrigerant that mediates heat generated by a heat source unit and water supplied to a plurality of indoor units perform heat exchange, and a refrigerant pipe connected to the heat source unit Information on the amount of heat required by at least two indoor units of the plurality of indoor units provided in the expansion valve provided in the pipe, the water pump provided in the piping connected to the plurality of indoor units, and the transmission relay Among the plurality of indoor units, the hydro unit communication unit for receiving information of the required heat amount from the indoor units excluding the two or more indoor units, and the plurality of the required heat amounts collected by the hydro unit communication unit
  • the heat capacity necessary for the indoor unit of the present invention is calculated, and the operation capacity setting device for notifying the heat source unit of the information of the calculated required heat amount via the hydro unit communication unit; Refer to the information of heat quantity And, those having a control unit for controlling the expansion valve and the water pump.
  • a transmission relay calculates a required heat amount of a plurality of indoor units and performs a signal communication with an operating capacity setting device that requests a heat source unit, and 2 of the plurality of indoor units
  • the required amount of heat required by the second transmission unit performing signal communication with the above indoor unit and the two or more indoor units are received from the second transmission unit, the required heat amounts required by the two or more indoor units are summed up And an arithmetic processing unit that delivers the total heat amount to the first transmission unit.
  • the transmission relay adds up the values relating to the operating load of the indoor unit that is communicatively connected to the own device, and notifies the operating capacity setting device of the required heat quantity of one virtual indoor unit. Even if the number of indoor units connected to the transmission relay increases, the number of indoor units recognized by the operation capacity setting device does not change, and the restriction on the number of addresses is eliminated, and the number of indoor units installed can be expanded. it can.
  • FIG. 5 It is a figure which shows one structural example of the air conditioning system of Embodiment 1 of this invention. It is a block diagram which shows one structural example of the heat-source equipment shown in FIG. It is a block diagram which shows one structural example of the hydro unit shown in FIG. It is a block diagram which shows one structural example of the indoor unit shown in FIG. It is a block diagram which shows one structural example of the transmission relay shown in FIG. In the transmission repeater shown in FIG. 5, it is a schematic diagram which shows a mode that the virtual indoor unit was constructed
  • FIG. 1 It is a sequence diagram which shows an example of control of a transmission relay in case a virtual indoor unit is set to the transmission relay shown in FIG. It is a sequence diagram which shows the operation
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 5.
  • FIG. It is a figure which shows one structural example of the air conditioning system of Embodiment 2 of this invention.
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 6.
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 7.
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 8.
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 9.
  • FIG. It is a figure which shows one structural example of the air conditioning system of the modification 10.
  • FIG. It is a figure which shows one structural example of the air conditioning system of Embodiment 3 of this invention.
  • It is a block diagram which shows one structural example of the hydro unit shown in FIG. It is a block diagram which shows one structural example of the indoor unit shown in FIG.
  • FIG. It is a block diagram which shows one structural example of the heat-source equipment in the air conditioning system of modification 12.
  • FIG. It is a block diagram which shows one structural example of the hydro unit in the air conditioning system of the modification 12.
  • FIG. 1 is a figure which shows one structural example of the air conditioning system of Embodiment 1 of this invention.
  • the air conditioning system 10 includes a heat source unit 100, a hydro unit 200, a plurality of indoor units 300A to 300E, and a transmission repeater 400.
  • the heat source unit 100, the hydro unit 200, the indoor units 300A and 300B, and the transmission repeater 400 are connected by the transmission line 3.
  • the transmission repeater 400 and the indoor units 300 C to 300 E are connected by the transmission line 4.
  • the communication connection between the devices is a wired connection, but may be wireless.
  • Different addresses for communication are assigned to the heat source unit 100, the hydro unit 200, the indoor units 300A and 300B, and the transmission relay unit 400. Further, the indoor units 300C to 300E are assigned different communication addresses. The data transmitted and received between these devices are attached with a destination address indicating a data destination and a transmission source address indicating a data transmission source.
  • the indoor units 300A to 300E are classified into a plurality of groups depending on whether they are connected to the transmission repeater 400 or not.
  • the indoor units 300C to 300E belong to group 2 in which data is transmitted to the transmission relay 400
  • the indoor units 300A and 300B belong to group 1 in which data is transmitted to the hydro unit 200.
  • FIG. 2 is a block diagram showing one configuration example of the heat source unit shown in FIG.
  • the heat source unit 100 includes a compressor 101, a flow path switching unit 102, a heat exchanger 103, a fan 104, and an accumulator 105.
  • the compressor 101, the flow path switching device 102, the heat exchanger 103, and the accumulator 105 are connected by a refrigerant pipe 5.
  • the compressor 101 compresses and discharges the absorbing refrigerant at a pressure based on the operating frequency.
  • the flow path switching unit 102 is connected to the discharge side of the compressor 101.
  • the flow path switching unit 102 is a four-way valve that switches the flow path according to the operation mode of the cooling operation and the heating operation.
  • the heat exchanger 103 is, for example, a finned tube type heat exchanger.
  • the heat exchanger 103 exchanges heat between the refrigerant and the air.
  • the fan 104 supplies air to the heat exchanger 103.
  • the accumulator 105 is connected to the suction side of the compressor 101.
  • the accumulator 105 separates the refrigerant into liquid and gas, and stores excess refrigerant.
  • the heat source unit 100 further includes a control unit 121, a communication unit 122, and a heat source unit storage unit 108.
  • the control unit 121 includes a heat source device control unit 106 and a data processing unit 107.
  • the communication unit 122 includes a heat source device communication processing unit 109, a first transmission unit 112, and a second transmission unit 113.
  • the control unit 121 is, for example, a microcomputer.
  • the data processing unit 107 When the data processing unit 107 receives the heat amount information from the heat source unit communication processing unit 109, the data processing unit 107 refers to the control data stored in the heat source unit storage unit 108 and uses the received information and the information stored in the heat source unit storage unit 108.
  • the control content of each device provided in the heat source unit 100 is determined.
  • the data processing unit 107 generates a control signal including information of control content for each device.
  • the heat source unit control unit 106 controls the operation of the compressor 101, the flow path switching unit 102, and the fan 104 in accordance with the control signal received from the data processing unit 107.
  • the heat source device storage unit 108 stores control data necessary for control executed by the heat source device control unit 106.
  • the first transmission unit 112 functions as an interface of signal communication between another heat source unit and the heat source unit communication processing unit 109 when another heat source unit is installed.
  • the second transmission unit 113 functions as an interface for signal communication between the hydro unit 200 and the heat source unit communication processing unit 109.
  • the heat source device communication processing unit 109 includes a communication separation unit 110 and a communication protocol conversion unit 111.
  • the communication separation unit 110 selects one of the first transmission unit 112 and the second transmission unit 113 according to the destination of the data to be transmitted.
  • the communication separation unit 110 performs parallel processing of data transmission / reception using the first transmission unit 112 and data transmission / reception using the second transmission unit 113.
  • the communication protocol conversion unit 111 converts data to be received into a communication protocol used by the destination device. Even if another unit with which the heat source unit 100 communicates is different from the heat source unit 100 and the maker is different and the communication protocol is different, the heat source unit 100 can exchange data with that unit.
  • FIG. 3 is a block diagram showing a configuration example of the hydro unit shown in FIG.
  • the hydro unit 200 has a water heat exchanger 201, an electronic expansion valve 202, and a water pump 203.
  • the water heat exchanger 201 and the electronic expansion valve 202 are connected to the refrigerant pipe 5.
  • the water heat exchanger 201 and the water pump 203 are connected to the pipe 6.
  • the pipe 6 is connected to the indoor units 300A to 300E.
  • the case where the water system connected to the hydro unit 200 is one system will be described.
  • the water heat exchanger 201 performs heat exchange between the refrigerant that mediates the heat generated by the heat source unit 100 and water.
  • the electronic expansion valve 202 reduces the pressure of the refrigerant and adjusts the flow rate of the refrigerant.
  • the water pump 203 adjusts the flow rate of water flowing through the pipe 6.
  • the hydro unit 200 includes a control unit 221, a data storage unit 210, a hydro unit communication unit 211, and a driving capacity setting device 207.
  • the control unit 221 includes a hydro unit control unit 205 and a data processing unit 206.
  • the control unit 221 and the driving capacity setting device 207 are microcomputers.
  • the hydro unit communication unit 211 receives, via the transmission line 3, information on the amount of heat required by the indoor units 300A and 300B and the transmission repeater 400.
  • the information on the amount of heat received from the transmission relay 400 includes the information on the total amount of heat of the required amount of heat required by the indoor units 300C to 300E.
  • the driving capacity setting device 207 includes a driving capacity calculation unit 208 and a driving capacity distribution unit 209.
  • the operating capacity calculation unit 208 calculates the necessary heat amount using the information of the heat amount collected by the hydro unit communication unit 211, and stores the calculation result in the data storage unit 210. Specifically, the operating capacity calculation unit 208 calculates the required heat amount by totaling the required heat amounts required by the indoor units 300A to 300E for each of the cooling operation and heating operation modes.
  • the operating capacity distribution unit 209 requests the heat source unit 100 for the heat amount calculated by the operating capacity calculation unit 208.
  • the data processing unit 206 refers to the heat amount information stored in the data storage unit 210, and determines the control contents of the electronic expansion valve 202 and the water pump 203.
  • the data processing unit 206 generates a control signal including information of control content for each device and passes the control signal to the hydro unit control unit 205.
  • the hydro unit control unit 205 controls the operation of the compressor 101, the electronic expansion valve 202 and the water pump 203 in accordance with the control signal received from the data processing unit 206.
  • the configuration example shown in FIG. 3 shows the case where the driving capacity setting device 207 is provided in the hydro unit 200
  • the device on which the driving capacity setting device 207 is installed is not limited to the hydro unit 200.
  • the operating capacity setting device 207 may be provided with a storage unit for storing the heat amounts collected from the indoor units 300A to 300E.
  • FIG. 4 is a block diagram showing an example of the configuration of the indoor unit shown in FIG.
  • the indoor unit 300A includes a water heat exchanger 301, a flow valve 302, and a fan 303.
  • the water heat exchanger 301 and the flow valve 302 are connected by a pipe 6.
  • the water heat exchanger 301 is, for example, a finned tube type heat exchanger.
  • the water heat exchanger 301 performs heat exchange between the water flowing in from the hydro unit 200 and the room air to be the space to be air conditioned.
  • the fan 303 sends the indoor air to the water heat exchanger 301 and sends the air after heat exchange with water into the room.
  • the flow valve 302 is, for example, an electronic flow valve.
  • the flow rate valve 302 adjusts the flow rate of the water flowing into the water heat exchanger 301 by adjusting the degree of opening.
  • the indoor unit 300A includes an indoor unit control unit 305, an operation unit 306, a data storage unit 307, and an indoor communication unit 308.
  • the indoor unit control unit 305 is a microcomputer.
  • the operation unit 306 is, for example, a remote controller.
  • the operation unit 306 transmits, to the indoor unit control unit 305, an instruction signal including an instruction content such as a set temperature and an operation mode input from the operator.
  • the indoor unit control unit 305 controls the operation of one or both of the flow rate valve 302 and the fan 303 in accordance with an instruction signal received from the indoor communication unit 308.
  • the indoor unit control unit 305 stores, in the data storage unit 307, the operation mode during operation and the required heat amount required by the indoor unit 300A.
  • the indoor unit control unit 305 calculates the required heat amount using, for example, the temperature difference between the indoor temperature and the set temperature, and the volume of the indoor space.
  • the data storage unit 307 stores data necessary for control executed by the indoor unit control unit 305.
  • the data storage unit 307 stores the required heat amount of the indoor unit 300A.
  • the data storage unit 307 stores, for example, information on the address of the own machine, data indicating the relationship with the refrigerant system, and the operating capacity.
  • the functions of the indoor communication unit 308 differ between the indoor units 300A and 300B and the indoor units 300C to 300E.
  • the indoor communication unit 308 is connected to the hydro unit 200 via the transmission line 3.
  • the indoor communication unit 308 functions as an interface for signal communication between the hydro unit 200 and the indoor unit control unit 305.
  • the indoor communication unit 308 reads out the information of the operation mode and the required heat amount from the data storage unit 307 and transmits the information to the hydro unit 200 at a constant cycle.
  • the indoor communication unit 308 is connected to the transmission repeater 400 via the transmission line 4.
  • the indoor communication unit 308 functions as an interface for signal communication between the transmission relay 400 and the indoor unit control unit 305.
  • the indoor communication unit 308 reads out the information of the operation mode and the required heat quantity from the data storage unit 307 and transmits the information to the transmission repeater 400 at a constant cycle.
  • FIG. 5 is a block diagram showing an example of the configuration of the transmission repeater shown in FIG.
  • the transmission repeater 400 shown in FIG. 5 is, for example, a microcomputer.
  • the configuration shown in FIG. 5 is built in the transmission relay 400 as a CPU (Centalal Processing Unit) included in the microcomputer executes processing according to a program.
  • a CPU Centralal Processing Unit
  • the transmission relay 400 relays communication between the hydro unit 200 and the plurality of indoor units 300C to 300E.
  • the transmission relay 400 includes a first transmission unit 404, a second transmission unit 405, a data storage unit 406, and an arithmetic processing unit 401.
  • the first transmission unit 404 is connected to the hydro unit 200 via the transmission line 3, and functions as an interface for signal communication between the hydro unit 200 and the processing unit 401.
  • the second transmission unit 405 is connected to the plurality of indoor units 300 C to 300 E via the transmission line 4.
  • the second transmission unit 405 functions as an interface for signal communication between the plurality of indoor units 300 C to 300 E and the arithmetic processing unit 401.
  • the arithmetic processing unit 401 processes various data to be transmitted and received via the first transmission unit 404 and the second transmission unit 405.
  • the arithmetic processing unit 401 internally sets a virtual indoor unit, and communicates with the hydro unit 200 as a virtual indoor unit.
  • the arithmetic processing unit 401 includes a virtual device setting unit 402 and a relay processing unit 403.
  • the virtual device setting unit 402 sets a virtual indoor unit in which two or more indoor units 300C to 300E are integrated among the plurality of indoor units 300C to 300E.
  • FIG. 6 is a schematic view showing how a virtual indoor unit is constructed in the transmission / relay unit shown in FIG. As shown in FIG. 6, when communicating with the hydro unit 200, the transmission repeater 400 behaves as one virtual indoor unit VI. Further, the transmission relay 400 behaves in the same manner as the hydro unit 200 as a proxy machine of the hydro unit 200 in communication with the plurality of indoor units 300 C to 300 E.
  • the virtual device setting unit 402 includes a virtual number setting unit 402A and an operating capacity calculation unit 402B.
  • Virtual number setting unit 402A sets the number of virtual indoor units VI.
  • the operating capacity calculation unit 402B calculates the virtual necessary heat of the virtual indoor unit VI using the required heat of each indoor unit 300C to 300E stored in the data storage unit 406 for each set virtual number of virtual indoor units VI. Do.
  • the required heat amount of the indoor units 300C to 300E is stored in the data storage unit 406.
  • the virtual number setting unit 402A sets a preset number (for example, one), and the operating capacity calculating unit 402B adds up the heat quantities of the operating indoor units 300C to 300E to obtain the virtual indoor unit VI. Calculated as virtual required heat. If the number of indoor units 300C to 300E in operation changes, or if the operating mode changes, the operating capacity calculating unit 402B recalculates the virtual required heat quantity again.
  • a preset number for example, one
  • the operating capacity calculating unit 402B adds up the heat quantities of the operating indoor units 300C to 300E to obtain the virtual indoor unit VI. Calculated as virtual required heat. If the number of indoor units 300C to 300E in operation changes, or if the operating mode changes, the operating capacity calculating unit 402B recalculates the virtual required heat quantity again.
  • the virtual number setting unit 402A may set the number according to the operation mode of the indoor units 300C to 300E. Then, virtual machine number setting unit 402A sets the address of virtual indoor unit VI and stores it in data storage unit 406.
  • virtual number setting unit 402A classifies the plurality of indoor units 300C to 300E according to the operation mode, and sets virtual indoor unit VI for each of the classified indoor units. For example, when all of the plurality of indoor units 300C to 300E are performing the cooling operation or the heating operation, one virtual indoor unit VI in which the three indoor units 300C to 300E are integrated is set.
  • the operating capacity calculation unit 402 B adds up the required heat amounts of the three indoor units 300 C to 300 E to calculate the virtual required heat amount of the virtual indoor unit VI, and stores the calculated required heat amount in the data storage unit 406.
  • the virtual device setting unit 402 classifies the operation modes and sets one virtual indoor unit. Therefore, the air conditioning system 10 can control the air conditioning efficiently by suppressing the communication traffic amount and the signal processing amount when performing the operation in which the cooling and the heating are mixed.
  • virtual number setting unit 402A has described the case where the number of virtual indoor units VI is set for each operation mode of indoor units 300C to 300E, the present invention is not limited to this case.
  • One virtual indoor unit VI may be set in a predetermined number (for example, three) of indoor units set in advance, regardless of the operation mode of each indoor unit 300C to 300E, or the virtual indoor unit for each floor You may set VI.
  • the indoor units 300C and 300D perform the cooling operation and the indoor unit 300E performs the heating operation among the plurality of indoor units 300C to 300E.
  • the virtual number setting unit 402A corresponds to a virtual indoor unit VI obtained by integrating the indoor units 300C and 300D performing the cooling operation and a virtual room corresponding to the indoor unit 300E performing the heating operation.
  • the operating capacity calculation unit 402B calculates the total required heat amount of the indoor units 300C and 300D performing the heating operation and the total required heat amount of the indoor unit 300E performing the cooling operation, and stores the total required heat amount in the data storage unit 406.
  • the relay processing unit 403 performs signal processing for relaying data received by the first transmission unit 404 to the second transmission unit 405, and signal processing for relaying data received by the second transmission unit 405 to the second transmission unit 405. I do. That is, when receiving data from the first transmission unit 404, the relay processing unit 403 determines whether to transmit the data received from the hydro unit 200 to the predetermined indoor units 300C to 300E via the second transmission unit 405. Do. The relay processing unit 403 determines which indoor unit 300C-300E of the plurality of indoor units 300C-300E to transmit, from the content of the data. When determining that the data is to be transmitted to any of the indoor units 300C to 300E, the relay processing unit 403 adds an address of a destination to the data and transmits the data to the indoor units 300C to 300E via the second transmission unit 405.
  • the relay processing unit 403 determines whether to transmit the data received from the indoor units 300C to 300E via the first transmission unit 404 to the hydro unit 200. When it is determined that the relay processing unit 403 needs to transmit, the relay processing unit 403 transmits data to the hydro unit 200 via the first transmission unit 404.
  • An example of the case where it is necessary to transmit data to the hydro unit 200 is data obtained by summing up the heat quantities required by the indoor units 300C to 300E.
  • the communication protocol to the hydro unit 200 and the communication protocol to each indoor unit 300C to 300E may be the same or different.
  • the relay processing unit 403 performs data protocol conversion, and then transmits the data to the destination.
  • the relay processing unit 403 may perform polling with the hydro unit 200.
  • the relay processing unit 403 transmits a signal for instructing polling to the hydro unit 200 via the first transmission unit 404 and the transmission line 3.
  • the relay processing unit 403 then stores the data received from the hydro unit 200 in the data storage unit 406.
  • the relay processing unit 403 may perform polling with the indoor units 300C to 300E.
  • the relay processing unit 403 transmits a signal instructing to perform polling to the indoor units 300C to 300E via the second transmission unit 405 and the transmission line 4.
  • relay processing unit 403 stores data received from indoor units 300C to 300E as a reply in data storage unit 406.
  • data collection is not limited to polling.
  • Data collection may be performed using communication control such as a token method or a carrier sense multiple access (CSMA) / collision detection (CD) method.
  • CSMA carrier sense multiple access
  • CD collision detection
  • Relay processing unit 403 communicates with hydro unit 200 as virtual indoor unit VI using information on the address stored in data storage unit 406, and relays data received from hydro unit 200 to a plurality of indoor units 300C to 300E. Do.
  • the relay processing unit 403 collects, from the hydro unit 200 and the indoor units 300C to 300E, the refrigerant system data on the devices of the refrigerant system, the address data of each device on the communication system, and the required heat quantity of the indoor units 300C to 300E, It is stored in the data storage unit 406.
  • refrigerant system data for each of the plurality of refrigerant systems is stored in the data storage unit 406.
  • address data for each of the plurality of communication systems is stored in data storage unit 406.
  • the relay processing unit 403 communicates with the hydro unit 200 and the indoor units 300C to 300E to collect various data, but the data collection is not limited to this case.
  • the above-described refrigerant system data and address data may be input and stored in the data storage unit 406 using an operation unit such as a keyboard (not shown) by the operator.
  • FIG. 7 is a schematic view showing an example of data stored in the data storage unit shown in FIG.
  • FIG. 7 shows an example of the address assigned to each device in the air conditioning system 10.
  • the data storage unit 406 includes the address a1 of the hydro unit 200 connected to the same refrigerant system, the addresses b2 to b5 of the indoor units 300C to 300E, and the address a3 of the virtual indoor unit VI.
  • the address a1 of the hydro unit 200 and the address a3 of the virtual indoor unit VI belong to the group 1 addresses.
  • the addresses b2 to b5 of the indoor units 300C to 300E and the address b1 of the virtual indoor unit VI belong to the group addresses.
  • the data storage unit 406 is used as an address of the transmission relay 400, an address a2 used when communicating with the hydro unit 200 via the first transmission unit 404, and when communicating with the indoor units 300C to 300E.
  • the address b1 is stored.
  • the data storage unit 406 stores the operating capacity of the indoor units 300C to 300E as information on the indoor units 300C to 300E. Further, the data storage unit 406 stores data necessary for the arithmetic processing unit 401 for arithmetic processing.
  • the relay processing unit 403 When communicating with the hydro unit 200, the relay processing unit 403 relays communication as the virtual indoor unit VI using the addresses a1 to a3. For example, when the hydro unit 200 requests the indoor units 300 C to 300 E to transmit information on the required heat amount, the relay processing unit 403 transmits the virtual necessary heat of the virtual indoor unit VI to the hydro unit 200.
  • relay processing unit 403 receives data to be transmitted from each indoor unit 300C to 300E to hydro unit 200 via second transmission unit 405, relay processing unit 403 serves as virtual indoor unit VI from first transmission unit 404 to hydro unit 200. Send.
  • the relay processing unit 403 receives data from the hydro unit 200 as the virtual indoor unit VI, the relay processing unit 403 selects a destination indoor unit from the plurality of indoor units 300C to 300E, and sends the second indoor unit address to the selected indoor unit. Data is transmitted via the transmission unit 405.
  • Relay processing section 403 may select indoor units 300C-300E to be transmitted from among the plurality of indoor units 300C-300E by applying various routing techniques.
  • the relay processing unit 403 relays the communication between the hydro unit 200 and the virtual indoor unit VI based on the information of the address stored in the data storage unit 406, and the virtual indoor unit VI and the plurality of indoor units 300C ⁇ Relay communication with 300E.
  • the arithmetic processing unit 401 controls the first transmission unit 404 and the second transmission unit 405 as communication units independent of each other.
  • FIG. 8 is a flow chart showing an example of an operation procedure of the transmission repeater shown in FIG.
  • transmission relay 400 When activated, transmission relay 400 starts communication with hydro unit 200 and indoor units 300C-300E (step ST111). Then, the transmission relay 400 confirms the number of hydro units 200 (step ST112), and confirms the number of connected indoor units 300C to 300E (step ST113). In step ST112, when no hydro unit 200 is connected, the transmission relay 400 determines that a communication error has occurred (step ST114). In step ST113, when none of the indoor units 300C to 300E is connected, the transmission relay 400 determines that a communication error has occurred (step ST114). In this case, the operator restarts the transmission relay 400 or confirms the connection state of the transmission line 3.
  • steps ST112 and ST113 when the transmission relay 400 is connected to the hydro unit 200 and connected to one or more of the indoor units 300C to 300E, the information on the hydro unit 200 and the indoor units 300C to 300E is collected. Do.
  • the transmission relay 400 stores the collected information in the data storage unit 406 (step ST115). At that time, the data storage unit 406 collects the heat amounts, the addresses and the operating capacities required by the indoor units 300C to 300E, and the information of the refrigerant system. Thereafter, relay processing section 403 determines whether or not there is an operating indoor unit among indoor units 300C-300E (step ST116). When none of the indoor units 300C-300E is operating, the transmission relay 400 stands by until any of the indoor units 300C-300E starts operating (step ST117).
  • the priority may be set to the address.
  • the transmission relay 400 gives priority to processing of data of an address having a high priority.
  • the transmission relay 400 transmits a data reception confirmation signal to the transmission source of the processed data.
  • the indoor units 300 C to 300 E can not receive the data reception confirmation signal from the transmission relay 400, the indoor units 300 C to 300 E retransmit the data to the transmission relay 400.
  • step ST116 when any of the indoor units 300C to 300E is operating, the virtual device setting unit 402 sets the virtual indoor unit VI (step ST118).
  • the virtual device setting unit 402 reads the required heat amount of the indoor units 300C to 300E in operation from the data storage unit 406, and adds the read required heat amount to the data storage unit 406 as the required heat amount of the virtual indoor unit VI. It stores (step ST118).
  • the first transmission unit 404 transmits the total value of the required heat amount to the hydro unit 200 as the heat amount information indicating the required heat amount of the virtual indoor unit VI.
  • virtual device setting unit 402 monitors the operating state of each indoor unit of indoor units 300C to 300E, and recalculates the necessary heat quantity of virtual indoor unit VI each time the operation mode is switched (steps ST116 to ST119). ).
  • FIG. 9 is a sequence diagram showing an example of control of the transmission repeater when the virtual indoor unit is set in the transmission repeater shown in FIG. Here, the flow of data processing in the transmission relay 400 will be described.
  • the second transmission unit 405 When the second transmission unit 405 receives data from the indoor units 300C to 300E (step ST121), the second transmission unit 405 passes the received data to the arithmetic processing unit 401.
  • the arithmetic processing unit 401 processes the data received from the second transmission unit 405 (step ST122), and passes the processed data and an address indicating a destination to the first transmission unit 404.
  • the arithmetic processing unit 401 stores the result of data processing in the data storage unit 406.
  • the first transmission unit 404 receives the data and the address from the arithmetic processing unit 401
  • the first transmission unit 404 sets an address to the received data and transmits the data to the transmission line 3 (step ST123).
  • FIG. 9 shows the case where the address of the hydro unit 200 is set in the data.
  • the data transmitted by the first transmission unit 404 is transmitted from the transmission relay 400 to the hydro unit 200 as data of the virtual indoor unit VI.
  • the first transmission unit 404 receives data from the hydro unit 200 (step ST124)
  • the first transmission unit 404 passes the received data to the arithmetic processing unit 401.
  • the arithmetic processing unit 401 processes the data received from the first transmission unit 404 (step ST125), and passes the processed data and an address indicating a destination to the second transmission unit 405.
  • the arithmetic processing unit 401 stores the result of data processing in the data storage unit 406.
  • the second transmission unit 405 sets the address to the received data and transmits the data to the indoor units 300C to 300E through the transmission line 4 (step ST126).
  • FIG. 10 is a sequence diagram showing an operation procedure of the air conditioning system shown in FIG.
  • the indoor units 300A to 300E are the indoor units 300A and 300B belonging to the group 1 connected by the transmission line 3 and the indoor units 300C to 300E belonging to the group 2 connected by the transmission line 4 being classified.
  • the hydro unit 200 communicates with the indoor units 300A and 300B in the group 1 and stores the communication results of the indoor units 300A and 300B (step ST101).
  • the communication result includes information of the required heat amount required by the indoor units 300A and 300B.
  • the transmission relay 400 communicates with the indoor units 300C to 300E of group 2, calculates and stores the total heat amount based on the communication result of the indoor units 300C to 300E (step ST102).
  • the hydro unit 200 communicates with the transmission repeater 400 via the transmission line 3, and acquires the information of the total heat amount generated by the transmission repeater 400 in step ST102 from the transmission repeater 400 (step ST103).
  • the hydro unit 200 calculates the amount of heat required based on the information acquired in steps ST101 and ST103, and notifies the heat source 100 of the necessary amount of heat via the transmission line 3 (step ST104).
  • the air conditioning system 10 of the first embodiment includes a heat source unit 100, a plurality of indoor units 300A to 300E, a transmission relay 400, and a hydro unit 200 including a driving capacity setting device 207.
  • the transmission relay 400 transmits the information of the total heat amount obtained by adding the required heat amount of the indoor units 300C to 300E belonging to the group 2 to the operating capacity setting device 207.
  • the operating capacity setting device 207 calculates the necessary heat amount using the information of the heat amount collected from the indoor units 300A and 300B belonging to the group 1 and the total heat amount received from the transmission repeater 400.
  • the transmission relay 400 adds up values relating to the operating loads of the indoor units 300C to 300E, and notifies the operating capacity setting device 207 of the required heat quantity of one virtual indoor unit.
  • the operation capacity setting device 207 recognizes the transmission relay 400 as one virtual indoor unit instead of the three indoor units of the indoor units 300C to 300E. Even if the number of indoor units belonging to group 2 increases, the number of indoor units recognized by the driving capacity setting device 207 does not change. Since transmission relay 400 acts as a single virtual indoor unit as a representative of the plurality of indoor units 300C to 300E, the number of addresses can be eliminated and the number of indoor units installed can be expanded.
  • the indoor units 300C to 300E belonging to the group 2 are connected to the same transmission line 4. Even if the number of indoor units belonging to group 2 increases, an increase in communication traffic occurs in group 2. Therefore, communication traffic of group 1 is not affected. The amount of data transmitted to the transmission line 3 of the group 1 is suppressed, and the increase in the congestion rate of the communication traffic is suppressed.
  • the number of indoor units belonging to group 2 reaches the upper limit value due to the restriction on the number of addresses, the number of installed indoor units can be further increased by increasing the number of transmission relays 400.
  • the increase or decrease in the operation load due to the increase in the number of indoor units is the increase or decrease in the load in the water system circuit on the secondary side, the influence on the circuit on the refrigerant system on the primary side may be small. Since the operation capacity setting device 207 provided in the hydro unit 200 calculates the amount of heat required by the indoor units 300A to 300E, the information processing load of the heat source unit 100 is reduced. As in the air conditioning system 10, in a system in which many devices are connected to one water system, the effect of being able to suppress communication traffic accompanying the increase in the number of installed devices is further enhanced.
  • the heat source unit 100 may include the hydro unit 200.
  • FIG. 11 is a view showing an example of the configuration of the air conditioning system of the first modification.
  • the heat source unit 230 of the first modification incorporates the hydro unit 200 shown in FIG. 3, and the heat source unit 100 and the hydro unit 200 shown in FIG. 1 are integrally configured.
  • FIG. 11 the configuration of the control unit 121 and the like shown in FIG. 2 and the configuration of the control unit 221 and the like shown in FIG. 3 are not shown.
  • the same effect as that of the first embodiment can be obtained even in the air conditioning system having a configuration in which the heat source unit and the hydro unit are integrated.
  • the air conditioning system 10 of the first embodiment may be a direct expansion air conditioning system that is not a heat transfer medium transfer method using a heat transfer medium such as water and brine.
  • the second modification is configured such that in the air conditioning system 10 shown in FIG. 1, the operating capacity setting device 207 is extracted from the hydro unit 200 and connected to the transmission line 3 and the hydro unit 200 is not provided. In this case, the heat source unit 100 has the communication function of the hydro unit 200. According to the second modification, the same effect as that of the first embodiment can be obtained even with the direct expansion type air conditioning system.
  • any one of the indoor units 300A to 300C may have the function of the driving capacity setting device 207.
  • one of the indoor units executes the totalizing process of the required heat amount of the indoor units 300A to 300E.
  • the function of the driving capacity setting device 207 is set to the indoor unit with the smallest address number among the indoor units 300A to 300C.
  • the function of the driving capacity setting device 207 is set in the indoor unit 300A.
  • the indoor unit performs the process performed by the operating capacity setting apparatus 207, so that it is not necessary to separately provide the operating capacity setting apparatus 207. Also in the third modification, the same effect as that of the first embodiment can be obtained.
  • the base configuration of the water heat exchanger 201 or the like provided in the hydro unit 200 is incorporated in the indoor unit in any of the indoor units 300A to 300C. May be
  • the base configuration is the configuration of the water heat exchanger 201, the electronic expansion valve 202, and the water pump 203 connected to the refrigerant pipe 5 and the pipe 6 in the hydro unit 200 shown in FIG.
  • the communication function provided to the hydro unit 200 is possessed by the indoor unit in which the base configuration of the hydro unit 200 is incorporated.
  • FIG. 12 is a diagram showing a configuration example of an air conditioning system of a fifth modification.
  • the indoor units 300A-1 to 300C-1 are connected to the transmission repeater 400A, and the indoor units 300A-2 to 300C-2 are connected to the transmission repeater 400B.
  • the transmission repeater 400B is connected to the transmission repeater 400A.
  • Transmission repeaters 400A and 400B have the same configuration as transmission repeater 400 described with reference to FIG.
  • the primary side of the hydro unit 200 and the plurality of transmission repeaters 400A and 400B are connected by the transmission line 3.
  • transmission repeater 400A and the indoor units 300A-1 to 300C-1 on the secondary side are connected by transmission line 4A
  • transmission repeater 400B and the indoor units 300A-2 to 300C-2 on the secondary side are transmitted. It is connected by line 4B.
  • Transmission repeater 400A adds the required heat quantity of indoor units 300A-1 to 30-1 and causes hydro unit 200 to recognize itself as a virtual indoor unit, thereby further increasing the number of indoor units to be installed. it can.
  • the number of indoor units installed can be further increased.
  • the number of indoor units connected can be further increased.
  • FIG. 13 is a figure which shows one structural example of the air conditioning system of Embodiment 2 of this invention.
  • FIG. 13 is a diagram showing an air conditioning system configured by a plurality of refrigerant systems and one water system.
  • the air conditioning system 20 includes the heat source units 100A and 100B, the hydro units 200A and 200B, the indoor units 300A-1 to 300E-1 and 300A-2 to 300B-2, and the transmission repeater 400A. And 400B.
  • the air conditioning system 20 is provided with two sets of the combination of the heat source apparatus 100A, the indoor units 300A-1 to 300E-1, and the transmission repeater 400A described in the first embodiment.
  • the number of refrigerant systems may be three or more.
  • the indoor units 300C-1 to 300E-1 connected to the transmission repeater 400A belong to the group 2A.
  • the indoor units 300C-2 to 300E-2 connected to the transmission repeater 400B belong to the group 2B.
  • the indoor units 300A-1 and 300B-1 connected to the hydro unit 200A and the indoor units 300A-2 and 300B-2 connected to the hydro unit 200B belong to the group 1.
  • the address number of the hydro unit 200A is set to a value obtained by adding 1 to the address number of the heat source unit 100A connected to the hydro unit 200A.
  • the address number of the hydro unit 200B is set to a value obtained by adding 1 to the address number of the heat source unit 100B connected to the hydro unit 200B.
  • the operation capacity distribution unit 209 refers to the heat quantity information stored in the data storage unit 210 and calculates the amount of heat required for each of the two refrigerant systems. Then, with respect to the two refrigerant systems, the operation capacity distribution unit 209 stores the refrigerant system and the amount of heat necessary for the refrigerant system in the data storage unit 210 in association with each other.
  • the operation capacity distribution unit 209 determines and determines the number of refrigerant systems to be activated so as to reduce the failure rate of the air conditioning system 10 and improve the efficiency of the refrigeration capacity when requiring heat quantities to the two refrigerant systems. Information on the amount of heat required is distributed to the number of refrigerant systems.
  • the air conditioning system 20 includes the two hydro units of the hydro units 200A and 200B. Therefore, one of the two operation capacity setting devices 207 performs a process of calculating the required heat quantity of the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2.
  • the main body of control of the air conditioning system 20 is the driving capacity setting device 207, since each of the hydro units 200A and 200B is provided with the driving capacity setting device 207, the hydro units 200A and 200B are described as the main body of information processing. Do.
  • each hydro unit of hydro units 200A and 200B mutually communicates with units other than the own unit in group 1, and notifies other party of connection information including the address of the own unit. .
  • the hydro units 200A and 200B compare the own unit's address with the addresses of other units, and set the hide unit having the smallest address number as the representative hydro unit.
  • the hydro units 200A and 200B set a hydro unit other than the representative hydro unit as a subordinate hydro unit.
  • the representative hydro unit is responsible for calculating the required heat quantity of the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2, and notifying the heat source machines 100A and 100B of the required heat quantity information.
  • the subordinate hydro unit performs information processing and control in accordance with the instruction of the representative hydro unit.
  • the address number of the hydro unit 200A is smaller than the address number of the hydro unit 200B.
  • Hydro unit 200A is set as a representative hydro unit, and hydro unit 200B is set as a subordinate hydro unit.
  • the hydro unit 200A adds the required heat amounts of the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2, and calculates the required heat amount.
  • the connection information notified by the hydro unit 200A and the hydro unit 200B to each other includes, in addition to the address, information on a heat source machine connected to the own unit. Therefore, the hydro unit 200A recognizes from the connection information that the heat source device 100B is connected to the hydro unit 200B.
  • the hydro unit 200A selects a heat source unit to be activated among the heat source units 100A and 100B based on the calculated necessary heat amount.
  • the hydro unit 200A preferentially activates the heat source unit 100A connected to the hydro unit 200A.
  • the hydro unit 200A may preferentially activate the heat source machine having the larger horsepower among the heat source machines 100A and 100B.
  • the operation efficiency of the air conditioning system 20 is enhanced by preferentially starting the heat source unit having large horsepower.
  • the hydro unit 200A may preferentially start the heat source unit whose operation time is short, with reference to the operation time of the heat source units 100A and 100B.
  • the failure rate of the air conditioning system 20 is reduced by preferentially starting the heat source unit whose operation time is short.
  • the hydro unit 200A and the hydro unit 200B operate when the heat source machine connected to the own unit is operating.
  • the hydro unit 200A instructs both the heat source unit 100B and the hydro unit 200B to start up, for example, when it is determined that the heat source unit 100B needs to be started up while the heat source unit 100B is not operating.
  • An example of the case where activation of the heat source unit 100B is required is a case where the heat quantity required is insufficient with the heat source unit 100A alone.
  • An example of the case where activation of the hydro unit 200B is required is the case where control of equipment including the electronic expansion valve 202 and the water pump 203 shown in FIG. 3 is required.
  • the hydro unit 200A instructs the hydro unit 200B to start the heat source unit 100B.
  • the hydro unit 200B receives an instruction from the hydro unit 200A functioning as a representative hydro unit, the hydro unit 200B instructs the heat source unit 100B to start up.
  • the representative hydro unit and the subordinate hydro unit share information to be held with each other.
  • the information held by the hydro unit 200A includes information on the numbers and capabilities of the heat source units 100A and hydro units connected to the self unit, and information on the amount of heat required for the indoor units 300A-1 and 300B-1 and the transmission relay 400A.
  • the information held by the hydro unit 200B includes information on the numbers and capabilities of the heat source units 100B and hydro units connected to the self unit, and information on the amount of heat required for the indoor units 300A-2 and 300B-2 and the transmission relay 400B.
  • the representative hydro unit and the subordinate hydro unit periodically update the shared information.
  • the hydro unit 200B switches from the subordinate hydro unit to the representative hydro unit.
  • the hydro unit 200B functions as a representative hydro unit using information shared with the hydro unit 200A. In this case, the hydro unit 200B notifies the other hydro units, the heat source unit, the indoor unit and the transmission relay that the own unit has been set as the representative hydro unit.
  • the cause of switching the representative hydro unit is not limited to the case of communication trouble. Even when one of the heat unit 100A connected to the hydro unit 200A functioning as the representative hydro unit and the hydro unit 200A fails, the hydro unit 200B may play the role of the representative hydro unit.
  • the representative hydro unit notifies the heat source unit of the change in the amount of heat. For example, when the indoor unit being operated among the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2 stops operating, the total amount of heat required by the air conditioning system 20 changes. Further, even if the stopped indoor unit of the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2 starts operating, the total amount of heat required by the air conditioning system 20 changes.
  • the hydro unit 200A updates the heat quantity information stored in the data storage unit 210 when the required heat quantity of any of the indoor units 300A-1, 300B-1, 300A-2, and 300B-2 changes. Do. Further, when there is a change in the amount of heat required for any of the indoor units 300C-1 to 300E-1, the hydro unit 200A receives the information on the change from the transmission relay 400A, and the data storage unit 210 Update the heat quantity information stored by. When there is a change in the amount of heat required for any of the indoor units 300C-2 to 300E-2, the hydro unit 200A receives information on the change from the transmission relay 400B, and the data storage unit 210 stores the information. Update the heat quantity information.
  • the hydro unit 200A uses the updated heat quantity information to determine the number of heat source machines to be activated among the heat source machines 100A and 100B and the heat quantity to be distributed to the heat source machines to be activated. Then, the hydro unit 200A instructs the heat source unit to be started to start up, and notifies the necessary heat amount.
  • the hydro unit with the smallest address number is described as the representative hydro unit, but the determination of the representative hydro unit is not limited to this case.
  • 14 and 15 are flowcharts showing an example of the operation procedure of the air conditioning system shown in FIG.
  • the operation capability setting device 207 of each of the hydro units 200A and 200B performs the process according to the procedure shown in FIGS. 14 and 15, the case of the hydro unit 200A as a representative hydro unit will be described.
  • step ST201 connection information of all the hydro units except the hydro unit 200A and the own unit is acquired and stored.
  • step ST202 the hydro unit 200A determines whether the number of hydro units excluding the self unit is one. If the number of hydro units excluding the own unit is zero, the hydro unit 200A proceeds to the process of step ST204. If it is determined in step ST202 that the number of hydro units other than the own unit is not one, the hydro unit 200A proceeds to the process of step ST203.
  • step ST203 the hydro unit 200A determines whether the address number of its own unit is the smallest among the plurality of hydro units. If the result of the determination is that the address number is the smallest, the hydro unit 200A proceeds to the process of step ST204. As a result of the determination in step ST204, when the address number of the own unit is not the smallest, the hydro unit 200A proceeds to the process of step ST205 and sets the own unit as a subordinate hydro unit. In the second embodiment, in step ST204, the hydro unit 200A sets its own unit as a representative hydro unit and sets the hydro unit 200B as a subordinate hydro unit. Subsequently, the hydro unit 200A proceeds to the process of step ST206.
  • step ST206 the hydro unit 200A calculates a value obtained by subtracting 1 from the address number of the hydro unit 200B, and whether or not the heat source unit 100B to which the calculated address is assigned is connected to the hydro unit 200B. Determine This determination is performed, for example, based on whether or not the hydro unit 200A sends a signal for the purpose of address confirmation to the heat source unit 100B and receives a signal indicating that the address is being used from the heat source unit 100B.
  • step ST210 determines that a communication error has occurred.
  • the hydro unit 200A proceeds to the process of step ST207.
  • the hydro unit 200A communicates with the heat source unit 100B via the hydro unit 200B, and acquires and stores connection information of the heat source unit 100B.
  • the connection information includes information on the number of water systems connected to the heat source unit 100B, but may include the address of the heat source unit 100B. Thereafter, the hydro unit 200A proceeds to the process of step ST208.
  • step ST208 the hydro unit 200A communicates with the indoor units 300A-1, 300B-1, 300A-2, and 300B-2, acquires connection information including address information from these indoor units, and stores the connection information. Further, the hydro unit 200A communicates with the transmission repeaters 400A and 400B, and acquires and stores connection information including address information from these transmission repeaters. Subsequently, the hydro unit 200A proceeds to step ST209.
  • step ST209 the hydro unit 200A determines whether all the indoor units and transmission relays in the group 1 are one or more. If it is determined that the number of any of the indoor units and the transmission relay does not reach one, the process proceeds to step ST210, and it is determined that a communication error has occurred. As a result of the determination in step ST209, when there are one or more indoor units and one or more transmission relays, the hydro unit 200A proceeds to the process of step ST211.
  • step ST211 the hydro unit 200A acquires and stores various data from the heat source units 100A and 100B, the indoor units 300A-1, 300B-1, 300A-2 and 300B-2, and the transmission relays 400A and 400B. Do. Subsequently, the hydro unit 200A proceeds to the process of step ST212. In step ST212, the hydro unit 200A shares the various data acquired in step ST211 with the hydro unit 200B. In addition, the hydro unit 200A includes connection information including the address information of the heat source units 100A and 100B, the indoor units 300A-1, 300B-1, 300A-2 and 300B-2, and the transmission relays 400A and 400B as the hydro unit 200B. Share with. Subsequently, the hydro unit 200A proceeds to the process of step ST213.
  • step ST213 the hydro unit 200A determines whether the indoor units 300A-1, 300B-1, 300A-2, and 300B-2 and the transmission relays 400A and 400B are operating.
  • the operation in which the hydro unit 200A confirms the transmission relays 400A and 400B means the operation of the virtual indoor unit described with reference to FIGS. 5 and 6.
  • the transmission relays 400A and 400B will be described below as indoor units.
  • step ST213 if there is no indoor unit in operation among the indoor units 300A-1, 300B-1, 300A-2, and 300B-2 and the transmission relays 400A and 400B, the hydro unit 200A
  • step ST215 the process waits until the required heat quantity of any of the indoor units 300A-1, 300B-1, 300A-2, 300B-2 and the transmission relays 400A and 400B changes.
  • step ST214 the hydro unit 200A adds up the heat amounts required by the indoor units in operation, and stores the heat amount information indicating the result of the added heat amounts.
  • step ST216 the hydro unit 200A determines the number of heat source units to be activated and the number of hydro units to be activated based on the heat amount information, and stores the information of the determined number. Subsequently, the hydro unit 200A proceeds to the process of step ST217.
  • step ST217 the hydro unit 200A selects a heat source unit to be activated from the heat source units 100A and 100B, and stores information of the selected heat source unit. Further, the hydro unit 200A selects a hydro unit to be activated among the own unit and the hydro unit 200B, and stores information of the selected hydro unit. Subsequently, in step ST218, the hydro unit 200A instructs the heat source unit to be activated and the hydro unit to be activated to perform activation, and instructs the necessary capability.
  • the hydro unit 200A instructs the heat source unit 100A to start and indicate required capabilities in step ST218.
  • the hydro unit 200A also instructs the heat source unit 100B via the hydro unit 200B. Specifically, when the hydro unit 200B receives from the hydro unit 200A the activation of the heat source unit 100B and the required capacity instruction, the hydro unit 200B instructs the heat source unit 100B.
  • step ST219 the hydro unit 200A determines whether there is a change in the amount of heat required for the indoor units 300A-1, 300B-1, 300A-2 and 300B-2, and the transmission relays 400A and 400B. judge. If there is a change in the required heat quantity of any of the indoor units among these indoor units, the hydro unit 200A returns to step ST214. As a result of the determination in step ST219, when there is no change in the required heat quantity of these indoor units, the hydro unit 200A stands by until the required heat quantity of these indoor units changes.
  • the air conditioning system 20 of the second embodiment has a plurality of sets of a combination of a plurality of indoor units 300A to 300E, a hydro unit 200 including a driving capacity setting device 207, and a heat source unit 100.
  • the operating capacity setting device 207 of one representative hydro unit among the plurality of hydro units obtains the heat required for the entire system. calculate. Furthermore, the operation capacity setting device 207 of the representative hydro unit determines the number of heat source units and hydro units to be started from the required heat amount, and distributes the required heat amount to the started heat source units and hydro units. Therefore, the operating efficiency of the air conditioning system 20 is improved even if a plurality of refrigerant systems are connected to one water system.
  • Group 1 is a transmission line different from groups 2A and 2B. Even if the number of indoor units connected increases in group 2A or 2B, the communication traffic does not affect group 1, so increase the number of heat source units 100 and hydro units 200 connected to transmission line 3 of group 1 Can. This effect is greater as the number of units installed in group 1 increases.
  • a plurality of refrigerant systems generate the sum of heat quantities required by all the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2 connected to the same water system.
  • the amount of heat to be Therefore the horsepower of each unit can be reduced by increasing the number of heat source units 100 and hydro units 200 connected to the plurality of refrigerant systems.
  • the heat source unit 100 and the hydro unit 200 can be miniaturized.
  • the representative hydro unit prioritizes the heat source machines to be activated based on the operating time of the plurality of heat source machines when activating a part of the plurality of heat source machines. You may put it on. In this case, the representative hydro unit equalizes the operation time of the plurality of refrigerant systems, thereby reducing the failure rate of the heat source unit.
  • the subordinate hydro unit switches to the representative hydro unit. Therefore, even if problems such as failure and communication trouble occur in the representative hydro unit, other dependent hydro units can back up control of the system.
  • FIG. 16 is a diagram showing an example of the configuration of the air conditioning system of the sixth modification.
  • the air conditioning system 50 of Modification 6 shown in FIG. 16 corresponds to the case where the indoor units 300A-2 to 300E-2 and the transmission relay 400B of the air conditioning system 20 shown in FIG. 13 are stopped.
  • the air conditioning system 50 as shown in FIG. 16, when the heat sources required by the indoor units 300A-1 to 300E-1 can not be obtained by the heat source unit 100A and the hydro unit 200A, the heat source unit 100B and the hydro unit 200B are You may start it.
  • FIG. 17 is a view showing an example of the configuration of the air conditioning system of the seventh modification.
  • the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2 are classified and arranged into a group 2A and a group 2B.
  • the seventh modification since the number of units connected to the group 1A is reduced, the number of installed heat source units 100 and the number of hydro units 200 can be increased.
  • FIG. 18 is a diagram showing an example of a configuration of an air conditioning system according to a modification 8.
  • a transmission repeater 400 is incorporated in the hydro units 200A and 200B.
  • the eighth modification not only the same effect as that of the second embodiment can be obtained, but it is not necessary to separately install the transmission repeaters 400A and 400B.
  • FIG. 19 is a diagram showing an example of a configuration of an air conditioning system according to a ninth modification.
  • the transmission repeater 400A is incorporated in the indoor unit 300A-1
  • the transmission repeater 400B is incorporated in the indoor unit 300A-2.
  • the ninth modification not only the same effect as that of the second embodiment can be obtained, but it is not necessary to separately install the transmission repeaters 400A and 400B.
  • the heat source units 100A and 100B may have the function of the transmission relay 400.
  • FIG. 20 is a view showing a configuration example of the air conditioning system of the modification 10.
  • the transmission repeater 400A is incorporated in the heat source unit 100A
  • the transmission repeater 400B is incorporated in the heat source unit 100B. According to the tenth modification, not only the same effect as that of the second embodiment can be obtained, but it is not necessary to separately install the transmission repeaters 400A and 400B.
  • the heat source machines 100A and 100B may have the function of the driving capacity setting device 207. In this case, it is not necessary to separately provide the driving capacity setting device 207 in the air conditioning system 20.
  • the modified example 11 applies the air conditioning system described in the modified example 9 and the modified example 10 to a direct expansion type air conditioning which is not the heat medium transfer method. Specifically, in the modification 11 shown in FIG. 13, the operating capacity setting device 207 is extracted from the hydro units 200A and 200B and connected to the transmission line 3, and the hydro units 200A and 200B are provided. Not a configuration. In this case, the heat source unit 100 has the communication function of the hydro unit 200 according to the second embodiment.
  • FIG. 21 is a figure which shows one structural example of the air conditioning system of Embodiment 3 of this invention.
  • detailed description of the same configuration as the configuration described in the first and second embodiments will be omitted.
  • the air conditioning system 30 is the same as the second embodiment in that two sets of combinations of the heat source unit 100A, the indoor units 300A-1 to 300E-1, and the transmission repeater 400A are provided.
  • the air conditioning system 30 has a pipe 6 for cooling and a pipe 7 for heating.
  • the air conditioning system 30 according to the third embodiment is a system capable of simultaneously performing cooling and heating. In the third embodiment, the case where the hydro unit 200A is set as a representative hydro unit and the hydro unit 200B is set as a subordinate hydro unit will be described.
  • FIG. 22 is a block diagram showing one configuration example of the hydro unit shown in FIG. Because the hydro units 200A and 200B have the same configuration, the configuration of the hydro unit 200A will be described.
  • three-way valves 204 a and 204 b are connected to the pipe 6 connected to the water heat exchanger 201.
  • the pipe 7 is connected to the three-way valves 204 a and 204 b.
  • the hydro unit control unit 205 causes the water flowing out of the three-way valve 204 a to flow through the pipe 7 and the water returning to the three-way valve 204 b to flow through the pipe 7.
  • the flow paths of 204a and 204b are switched.
  • the hydro unit control unit 205 causes the water flowing out of the three-way valve 204 a to flow through the pipe 6 and the water returning to the three-way valve 204 b to flow through the pipe 6.
  • the flow paths of 204a and 204b are switched.
  • FIG. 23 is a block diagram showing an exemplary configuration of the indoor unit shown in FIG. Because the indoor units 300A-1 to 300E-1 and 300A-2 to 300E-2 have the same configuration, the configuration of the indoor unit 300A-1 will be described.
  • three-way valves 304 a and 304 b are connected to the pipe 6 connected to the water heat exchanger 301.
  • the piping 7 is connected to the three-way valves 304 a and 304 b in addition to the piping 6.
  • the indoor unit control unit 305 causes the hot water to flow in from the three-way valve 304a through the pipe 7 and flow out from the three-way valve 304b through the pipe 7 ,
  • the flow paths of the three-way valves 304a and 304b are switched.
  • the indoor unit control unit 305 causes the cold water to flow in from the three-way valve 304a via the pipe 6 and flow out from the three-way valve 304b via the pipe 6 , The flow paths of the three-way valves 304a and 304b are switched.
  • the hydro unit 200A and the indoor unit 300A-1 control the pair of three-way valves according to the cooling and heating operation modes, and switch the water flow path to the pipe 6 or the pipe 7.
  • the pair of three-way valves provided in the hydro unit 200A and the indoor unit 300A-1 operate in conjunction so that the pipes are the same at the inlet and the outlet of the flow path.
  • the transmission relay 400A acquires the necessary heat and information on the cooling and heating operation modes from the indoor units 300C-1 to 300E-1 in the group 2A.
  • the transmission relay 400A adds up the required heat quantity of the indoor units 300C-1 to 300E-1 for each operation mode, associates and stores the operation mode and the required heat quantity.
  • the transmission repeater 400B adds up the required heat quantity of the indoor units 300C-2 to 300E-2 for each operation mode, associates the required heat quantity with the operation mode, and stores them.
  • the hydro unit 200A communicates with the indoor units 300A-1 and 300B-1, acquires information on the operation mode and the required heat amount from the indoor units 300A-1 and 300B-1, associates the operation mode with the required heat amount, and stores Do. Similar to the hydro unit 200A, the hydro unit 200B acquires information on the operation mode and the required heat amount from the indoor units 300A-2 and 300B-2, associates the operation mode with the required heat amount, and stores it.
  • the hydro unit 200A communicates with the hydro unit 200B and the transmission relays 400A and 400B, and acquires and stores heat quantity information in which the operation mode and the required heat quantity are associated. Furthermore, the hydro unit 200A determines the number of heat source machines activated in the cooling mode and the heat source machines activated in the heating mode using the information acquired from the hydro unit 200B and the transmission repeaters 400A and 400B, and should be activated Informing each heat source unit of the required heat quantity.
  • the third embodiment is the same as the process of steps ST201 to ST209 to ST213 described with reference to FIGS. 14 and 15, and thus the detailed description thereof will be omitted.
  • step ST214 shown in FIG. 15 the hydro unit 200A communicates with the hydro unit 200B and the transmission relays 400A and 400B, acquires heat amount information in which the operation mode and the required heat amount are associated, and the data storage unit 210 Store.
  • the hydro unit 200A uses the information stored in the data storage unit 210 to determine the number of heat source units to be started in the cooling mode and the number of heat source units to be started in the heating mode.
  • the hydro unit 200A instructs the heat source unit 100B of the operation mode and the required heat amount via the hydro unit 200B.
  • the hydro unit 200B receives information on the operation mode of the heat source unit 100B and the necessary heat amount from the hydro unit 200A, the content is notified to the heat source unit 100B.
  • the water heat exchangers 201 of the hydro units 200A and 200B and the plurality of indoor units are connected by the piping 6 for cooling and the piping 7 for heating.
  • the heat source unit 100 and the hydro unit 200 are provided corresponding to the refrigerant system that supplies the heat of cooling and the refrigerant system that supplies the heat of heating.
  • Modification 12 The modification 12 is the case of another configuration example of the configuration of the heat source unit and the hydro unit.
  • FIG. 24 is a block diagram showing a configuration example of a heat source unit in the air conditioning system of Modification 12.
  • FIG. 25 is a block diagram showing a configuration example of a hydro unit in the air conditioning system of the modification 12.
  • the detailed description of the same configuration as that of the third embodiment is omitted.
  • the configuration of the heat source unit 150A in the modification 12 will be described.
  • the heat source unit 150A corresponds to the heat source unit 100A shown in FIG.
  • the heat source unit 100B shown in FIG. 21 has the same configuration as the heat source unit 150A.
  • a flow path adjuster 114 having four check valves is provided in the refrigerant pipes 5a and 5b.
  • the flow path regulator 114 causes the refrigerant to flow out from the refrigerant pipe 5a and causes the refrigerant to flow in from the refrigerant pipe 5b, regardless of whether the heat source unit 100A is in the heating mode or the cooling mode.
  • the configuration of the hydro unit 250A in the modification 12 will be described.
  • the hydro unit 250A corresponds to the hydro unit 200A shown in FIG.
  • the hydro unit 200B shown in FIG. 21 has the same configuration as the hydro unit 250A.
  • 25, illustration of the driving capacity setting device 207, the control unit 221, the data storage unit 210, and the hydro unit communication unit 211 shown in FIG. 3 is omitted.
  • the hydro unit 250A has water heat exchangers 201 and 225.
  • An electronic expansion valve 202 is provided between the water heat exchanger 201 and the water heat exchanger 225.
  • the pipe 6 is connected to the water heat exchanger 201, and the pipe 7 is connected to the water heat exchanger 225.
  • a water pump 203 is provided for each of the pipes 6 and 7.
  • the refrigerant flowing out of the water heat exchanger 201 is depressurized by the electronic expansion valve 202 and flows through the water heat exchanger 225.
  • the water heat exchanger 225 functions as an evaporator, and the water flowing to the pipe 7 is cooled.
  • the hydro unit 250A of the modification 12 has a configuration in which the two water heat exchangers 201 and 225 are provided, and the electronic expansion valve 202 is installed therebetween. In this configuration, if the refrigerant flows from the refrigerant pipe 5a, heating and cooling can be performed simultaneously without the pair of three-way valves 304a and 304b shown in FIG. Further, in the modification 12, the flow path switching unit 102 may not be provided in the heat source unit 150A.
  • Modifications 1 to 4 are described in the first embodiment
  • Modifications 5 to 11 are described in the second embodiment
  • Modification 12 is described in the third embodiment.
  • One or more of the above may be applied to any of the first to third embodiments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Selon l'invention, ce système de climatisation comprend : une machine de source de chaleur qui génère de la chaleur ; une pluralité de machines intérieures, auxquelles est fournie la chaleur générée par la machine de source de chaleur ; un dispositif de réglage de performance de fonctionnement, qui calcule les quantités de chaleur requises par les machines intérieures, et effectue une demande à la machine de source de chaleur pour les quantités de chaleur ; et un relais de transmission, qui relaie une communication entre le dispositif de réglage de performance de fonctionnement et au moins deux machines intérieures parmi les machines intérieures, et qui transmet, au dispositif de réglage de performance de fonctionnement, une quantité de chaleur totale obtenue en ajoutant ensemble les quantités nécessaires de chaleur demandées par les deux machines intérieures ou plus.
PCT/JP2017/029926 2017-08-22 2017-08-22 Système de climatisation, unité hydraulique et relais de transmission Ceased WO2019038827A1 (fr)

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EP4060245A4 (fr) * 2019-11-12 2023-01-11 Mitsubishi Electric Corporation Unité extérieure, système de climatisation et programme
WO2023002590A1 (fr) * 2021-07-21 2023-01-26 三菱電機株式会社 Système de gestion de climatisation
WO2024225270A1 (fr) * 2023-04-28 2024-10-31 パナソニックＩｐマネジメント株式会社 Système de climatisation

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JP2005265235A (ja) * 2004-03-17 2005-09-29 Hitachi Ltd 空気調和機
JP2009052769A (ja) * 2007-08-24 2009-03-12 Mitsubishi Electric Corp 空調システム
WO2010050000A1 (fr) * 2008-10-29 2010-05-06 三菱電機株式会社 Conditionneur d'air
WO2010109627A1 (fr) * 2009-03-26 2010-09-30 三菱電機株式会社 Système de transport d'informations pour dispositif de réfrigération/conditionnement d'air
JP2012077970A (ja) * 2010-09-30 2012-04-19 Mitsubishi Heavy Ind Ltd マルチ型空気調和システムおよびその集中制御方法
WO2017013714A1 (fr) * 2015-07-17 2017-01-26 三菱電機株式会社 Relais de transmission et appareil de climatisation l'utilisant

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JP2005265235A (ja) * 2004-03-17 2005-09-29 Hitachi Ltd 空気調和機
JP2009052769A (ja) * 2007-08-24 2009-03-12 Mitsubishi Electric Corp 空調システム
WO2010050000A1 (fr) * 2008-10-29 2010-05-06 三菱電機株式会社 Conditionneur d'air
WO2010109627A1 (fr) * 2009-03-26 2010-09-30 三菱電機株式会社 Système de transport d'informations pour dispositif de réfrigération/conditionnement d'air
JP2012077970A (ja) * 2010-09-30 2012-04-19 Mitsubishi Heavy Ind Ltd マルチ型空気調和システムおよびその集中制御方法
WO2017013714A1 (fr) * 2015-07-17 2017-01-26 三菱電機株式会社 Relais de transmission et appareil de climatisation l'utilisant

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Publication number Priority date Publication date Assignee Title
EP4060245A4 (fr) * 2019-11-12 2023-01-11 Mitsubishi Electric Corporation Unité extérieure, système de climatisation et programme
US12117187B2 (en) 2019-11-12 2024-10-15 Mitsubishi Electric Corporation Outdoor unit, air-conditioning system, and recording medium
WO2023002590A1 (fr) * 2021-07-21 2023-01-26 三菱電機株式会社 Système de gestion de climatisation
JPWO2023002590A1 (fr) * 2021-07-21 2023-01-26
JP7425263B2 (ja) 2021-07-21 2024-01-30 三菱電機株式会社 空調管理システム
WO2024225270A1 (fr) * 2023-04-28 2024-10-31 パナソニックＩｐマネジメント株式会社 Système de climatisation
JP2024158703A (ja) * 2023-04-28 2024-11-08 パナソニックＩｐマネジメント株式会社 空気調和システム

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