WO2022210128A1 - Dispositif de climatisation - Google Patents

Dispositif de climatisation Download PDF

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Publication number
WO2022210128A1
WO2022210128A1 PCT/JP2022/013287 JP2022013287W WO2022210128A1 WO 2022210128 A1 WO2022210128 A1 WO 2022210128A1 JP 2022013287 W JP2022013287 W JP 2022013287W WO 2022210128 A1 WO2022210128 A1 WO 2022210128A1
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Prior art keywords
compressor
air
operation mode
air conditioning
control unit
Prior art date
Application number
PCT/JP2022/013287
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English (en)
Japanese (ja)
Inventor
哲也 増田
大 松井
尚輝 前川
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2022210128A1 publication Critical patent/WO2022210128A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F24F11/47—Responding to energy costs
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/59—Remote control for presetting
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states

Definitions

  • the present disclosure relates to an air conditioner.
  • Patent Document 1 describes a plurality of groups including one or more air conditioners each having an engine-driven compressor and an electrically-driven compressor, and a host control device that communicates with each group.
  • An air conditioning system comprising: In the air conditioning system described in Patent Document 1, the host control device acquires the energy usage conditions of each of a plurality of groups, and in the entire group, one or more of the electricity rate, gas rate, and carbon dioxide emissions is the highest. The operating output ratio of the compressors of the air conditioners in each group is estimated so as to reduce it, and each air conditioner operates based on the estimation result of the host controller.
  • the present disclosure provides an air conditioner capable of suppressing running costs while ensuring equipment reliability.
  • An air conditioner is an air conditioner that performs air conditioning by connecting a first compressor driven by a gas engine and a second compressor driven by an electric motor in parallel and circulating a refrigerant.
  • a communication unit that communicates with the control device, and an air conditioning control unit that controls the first compressor and the second compressor, and the air conditioning control unit receives operation instructions from the host control device via the communication unit. , a host operation mode in which the outputs of the first compressor and the second compressor are executed, and a local operation mode in which the outputs of the first compressor and the second compressor are determined and executed regardless of operation instructions from the host controller. and, at the start of air conditioning, after starting in the local operation mode, it shifts to the host operation mode.
  • the air conditioner determines and executes the output of the first compressor and the second compressor regardless of the operation instruction from the host controller, and after starting, via the communication unit The output of the first compressor and the second compressor is executed based on the operation instruction received from the host controller. Therefore, at the start of air conditioning, which greatly affects the reliability of the equipment, it always starts in the local operation mode, so the reliability of the equipment can be ensured. can be suppressed.
  • FIG. 1 is a diagram showing the configuration of an air conditioner according to Embodiment 1.
  • FIG. 2 is a block diagram showing a schematic configuration of an operation control system for an air conditioner according to Embodiment 1.
  • FIG. 3 is a flowchart showing the operation of the control device for the air conditioner according to Embodiment 1.
  • FIG. 1 shows the configuration of an air conditioner 10 according to Embodiment 1.
  • An air conditioner 10 according to this embodiment includes an outdoor unit 100 and an indoor unit 200 .
  • the outdoor unit 100 includes a gas engine 103 using gas as a driving source, a first compressor 101 that obtains driving force from the gas engine 103 to compress the refrigerant, and a second compressor 102 that uses an electric motor (not shown) as a driving source.
  • the first compressor 101 is selected to have a larger capacity than the second compressor 102 .
  • An oil separator 104 is provided in a high pressure pipe 133 where a first discharge pipe 131 provided on the discharge side of the first compressor 101 and a second discharge pipe 132 provided on the discharge side of the second compressor 102 join together. there is This oil separator 104 separates the oil contained in the refrigerant gas discharged from the first compressor 101 and the second compressor 102 . Oil separated in the oil separator 104 flows through the oil return pipe 151 . A filter 152 is arranged in the oil return pipe 151, and the oil that has passed through the filter 152 passes through the oil return pipe 151 and flows through the first suction pipe 138 and the second compression pipe 138 provided on the suction side of the first compressor 101.
  • a four-way valve 105 is provided downstream of the oil separator 104 .
  • the four-way valve 105 is for switching the refrigeration cycle between cooling and heating. In FIG. 1, when the refrigerant flows along the solid line, the heating operation occurs, and when the refrigerant flows along the dotted line, the cooling operation occurs.
  • a refrigerant pipe 134 extending from the four-way valve 105 to the indoor unit is connected to one end of the indoor heat exchanger 201 inside the indoor unit 200 .
  • the indoor unit 200 includes an indoor heat exchanger 201 , an indoor blower fan 202 and an indoor pressure reducing device 203 .
  • a refrigerant pipe 135 connected to the other end of the indoor heat exchanger 201 is connected to one end of the outdoor heat exchanger 106 in the outdoor unit 100 via the indoor decompression device 203 and the outdoor decompression device 108 .
  • the pipe between the indoor pressure reducing device 203 and the outdoor pressure reducing device 108 is defined as a liquid pipe 135a.
  • a radiator 111 is provided on the leeward side of the outdoor heat exchanger 106 .
  • the radiator 111 is connected to a circulation pipe (not shown) through which engine cooling water for cooling the gas engine 103 flows.
  • a refrigerant pipe 136 is connected to the other end of the outdoor heat exchanger 106 .
  • Refrigerant pipe 136 is connected to low-pressure pipe 137 via four-way valve 105 .
  • the low pressure pipe 137 is equipped with an accumulator 109 .
  • the low-pressure pipe 137 branches into a first suction pipe 138 and a second suction pipe 139 at a low-pressure pipe branch portion 137 a downstream of the accumulator 109 .
  • the low-pressure pipe 137 extends from the four-way valve 105 to the low-pressure pipe branch portion 137a.
  • the air conditioner 10 includes a bypass pipe 141 having one end connected to the liquid pipe 135 a and the other end connected to the low-pressure pipe 137 on the upstream side of the accumulator 109 .
  • the bypass pipe 141 is provided with an exhaust heat recovery pressure reducing device (pressure reducing means) 113 and an exhaust heat recovery heat exchanger 112 in order from the liquid pipe 135a side.
  • a circulation pipe (not shown) through which engine cooling water flows is connected to the exhaust heat recovery heat exchanger 112, and the exhaust heat recovery heat exchanger 112 transfers the exhaust heat of the gas engine 103 to the refrigerant. Since the exhaust heat recovery pressure reduction device 113 and the exhaust heat recovery heat exchanger 112 are provided, the refrigerant flowing through the air conditioner 10 can also absorb heat from the engine cooling water during heating.
  • the air conditioner 10 includes a control device 300 that controls each part of the air conditioner 10 .
  • a discharge pressure sensor 160 that detects the pressure of the discharged refrigerant and a discharge temperature sensor 170 that detects the temperature of the discharged refrigerant are provided on the discharge side of the first compressor 101 and the second compressor 102. ing.
  • On the suction side of the first compressor 101 there are a first suction pressure sensor 161 that detects the pressure of refrigerant sucked into the first compressor 101, and a first suction temperature sensor that detects the temperature of the refrigerant sucked into the first compressor 101. 171 are provided.
  • a second suction pressure sensor 162 that detects the pressure of the refrigerant sucked into the second compressor 102
  • a second suction temperature sensor that detects the temperature of the refrigerant sucked into the second compressor 102.
  • An outside air temperature sensor 173 is provided on the outer wall of the outdoor unit 100 . Detected values of the sensors 160 to 162 and 170 to 173 are input to the control device 300 .
  • FIG. 2 is a diagram showing a schematic configuration of the air conditioner operation control system 1 according to Embodiment 1.
  • An air conditioner operation control system 1 controls the operation of an air conditioner 10 .
  • An air conditioner operation control system 1 of this embodiment includes a plurality of air conditioners 10 and a host controller 30 that transmits and receives information to and from each air conditioner 10 via a communication network 20 .
  • the air conditioners 10 are installed in areas separated from each other, and the outside temperatures of the air conditioners 10 tend to differ depending on the weather.
  • FIG. 2 shows four air conditioners 10 to which operation instructions are sent from the host controller 30, the number of air conditioners 10 to which operation instructions are sent from the host controller 30 may be one or more.
  • the number of air conditioners 10 is not particularly limited.
  • the communication network 20 connects each device such as the air conditioner 10 and the host control device 30 included in the operation control system 1 of the air conditioner so that data communication is possible with each other.
  • the communication network 20 may include a public network, a leased line, and various wireless communication lines, and may include devices such as servers, routers, and wireless communication access points.
  • the connection between each device included in the air conditioner operation control system 1 and the communication network 20 may be wireless or wired.
  • the host control device 30 includes a processor (not shown) that executes a program such as a CPU (Central Processing Unit) or MPU (Micro-Processing Unit), and a storage unit (not shown) such as a ROM (Read Only Memory) or a RAM (Random Access Memory). etc., and controls each part of the host control device 30 .
  • a processor such as a CPU (Central Processing Unit) or MPU (Micro-Processing Unit)
  • a storage unit such as a ROM (Read Only Memory) or a RAM (Random Access Memory). etc.
  • the host control device 30 communicates with the control device of each air conditioner 10 via the communication network 20, and determines the output ratio between the operating outputs of the first compressor 101 and the second compressor 102 of the air conditioner 10. do.
  • the host controller 30 of this embodiment determines the output ratio between the first compressor 101 and the second compressor 102 of the air conditioner 10 based on the energy usage conditions. Specifically, the host control device 30 determines the gas rate based on the predetermined rate regulation for gas, the predetermined rate regulation for electric power, and the amount of carbon dioxide emissions corresponding to the amount of electric power as the energy usage conditions. , the power rate, and the output ratio of the operating outputs of the first compressor 101 and the second compressor 102 of the air conditioner 10 are calculated so that the amount of carbon dioxide emissions corresponding to the amount of power is reduced. Then, the host control device 30 transmits the output ratio of the operation output to each air conditioner 10 via the communication network 20 as an operation instruction.
  • the control device 300 includes an air conditioning control section 310 and a communication section 320 .
  • the air conditioning control unit 310 includes a processor 311 such as a CPU or MPU that executes programs, and a storage unit 312 such as ROM or RAM, and controls each unit of the air conditioner 10 .
  • the air-conditioning control unit 310 executes various processes through cooperation of hardware and software such that the processor 311 reads out the control program stored in the storage unit 312 and executes processing.
  • the storage unit 312 has a storage area for storing programs executed by the processor 311 and data processed by the processor 311 .
  • the storage unit 312 stores a control program executed by the processor 311, setting data relating to various settings of the air conditioner 10, and various other data.
  • the storage unit 312 has a nonvolatile storage area that stores programs and data in a nonvolatile manner.
  • the storage unit 312 may also include a volatile storage area and configure a work area for temporarily storing programs to be executed by the processor 311 and data to be processed.
  • the air conditioning control unit 310 includes an operation unit 330, a discharge pressure sensor 160, a first suction pressure sensor 161, a second suction pressure sensor 162, and a discharge temperature sensor 170 as elements for inputting signals to the air conditioning control unit 310.
  • a first intake temperature sensor 171, a second intake temperature sensor 172, an outside air temperature sensor 173, and the like are electrically connected.
  • the operation unit 330 includes input means such as operation switches, a touch panel, a mouse, and a keyboard, detects the operator's operation on the input means, and outputs the detection result to the air conditioning control unit 310 .
  • Air-conditioning control unit 310 executes processing corresponding to an operation based on an input from operation unit 330 .
  • the air conditioning control unit 310 includes, as elements for which the air conditioning control unit 310 outputs control signals, a display unit 331, a first compressor 101, a second compressor 102, a four-way valve 105, an outdoor blower fan 107, The outdoor decompression device 108, the exhaust heat recovery decompression device 113, the indoor blower fan 202, and the indoor decompression device 203 are electrically connected so as to be controllable.
  • the display unit 331 includes LEDs, a display panel, and the like, and performs lighting/blinking/lighting out of the LEDs in a predetermined manner and displaying information on the display panel, etc., according to the control of the air conditioning control unit 310 .
  • the air conditioning control unit 310 includes a discharge pressure sensor 160, a first suction pressure sensor 161, a second suction pressure sensor 162, a discharge temperature sensor 170, a first suction temperature sensor 171, a second suction temperature sensor 172, an outside air temperature sensor 173, and the like. Based on the detected values, the first compressor 101, the second compressor 102, the four-way valve 105, the outdoor blower fan 107, the outdoor pressure reducer 108, the exhaust heat recovery pressure reducer 113, and the indoor blower fan 202 , the indoor decompression device 203 and the like are driven and controlled.
  • the control device 300 includes a communication unit 320.
  • the communication unit 320 is configured by communication hardware conforming to a predetermined communication standard, and under the control of the air conditioning control unit 310, communicates with the host control device 30 via the communication network 20 to transmit and receive information about the air conditioner 10. I do.
  • the air conditioning control unit 310 of this embodiment is configured to be able to execute a host operation mode and a local operation mode. Further, the air-conditioning control unit 310 of the present embodiment receives operation instructions for the output ratio from the host control device 30 via the communication network 20 . In the host operation mode, the air conditioning control unit 310 operates the first compressor 101 and the second compressor 102 based on operation instructions transmitted from the host control device 30 . On the other hand, in the local operation mode, the air conditioning control unit 310 controls each air conditioner 10 based on the specific operating environment of the air conditioner 10, not based on the operation instruction transmitted from the host controller 30. The output of the first compressor 101 and the second compressor 102 is determined by a starting method set in advance, and an operation is performed to execute the output.
  • the specific operating environment of the air conditioner 10 means the local conditions of the air conditioner 10, such as the outside temperature of the air conditioner 10, the design specifications of the air conditioner 10, and the like.
  • the host control device 30 determines the output ratio between the first compressor 101 driven by the gas engine 103 and the second compressor 102 driven by the electric motor so as to reduce gas charges, electricity charges, and carbon dioxide emissions. Then, the operation instruction is transmitted to each air conditioner 10 . By operating each air conditioner 10 based on this operation instruction, the running cost of the air conditioner 10 can be suppressed.
  • FIG. 3 is a flowchart showing the operation of control device 300 of air conditioner 10 according to the first embodiment.
  • Air conditioning control unit 310 of control device 300 determines whether or not to start air conditioning (step ST11). Whether or not to start air conditioning can be determined based on an input from the operation unit 330, for example. When air conditioning control section 310 does not start air conditioning (step ST11; NO), step ST11 is repeated. When starting air conditioning (step ST11; YES), the air conditioning control unit 310 starts the local operation mode (step ST12).
  • step ST11 start air conditioning
  • the air conditioning apparatus 10 is started based on the operation instruction of the control device 300 that emphasizes the reduction of the running cost at the start of air conditioning, the operation according to the characteristics such as the design specifications of the equipment will not be performed.
  • the reliability of the equipment of the air conditioner 10 is likely to be greatly affected. Therefore, in the present embodiment, when air conditioning of the air conditioner 10 is started, operation is performed without being based on the operation instruction of the external host control device 30 by starting activation in the local operation mode.
  • the air conditioner 10 according to the specific operating environment of the air conditioner 10, such as the local conditions of the air conditioner 10, such as the outside temperature of the air conditioner 10 and the design specifications of the air conditioner 10. It is possible to set and activate a unique output that gives priority to ensuring the reliability of the harmonizing device 10 .
  • the air conditioning control unit 310 determines whether or not it is the heating operation (step ST13). Whether or not it is the heating operation can be determined based on the input of the operation unit 330, for example.
  • the air-conditioning control unit 310 determines that the heating operation is performed (step ST13; YES)
  • the air-conditioning control unit 310 starts the heating operation of the air conditioner 10 (step ST14).
  • the air conditioning control unit 310 determines the output of only the first compressor 101 based on the operating environment of the air conditioner 10 (step ST15).
  • the air conditioning control unit 310 operates only the first compressor 101 with the determined output while the second compressor 102 remains stopped (step ST16).
  • the outdoor temperature is low, and the liquid refrigerant tends to accumulate in the piping on the outdoor unit 100 side, and the liquid refrigerant may flow into the compressor and be compressed. be.
  • so-called foaming which is a phenomenon in which the refrigerant dissolved in the refrigerating machine oil evaporates. Therefore, in the heating operation, only the first compressor 101 is operated by the gas engine 103 . As a result, the exhaust heat of the gas engine 103 is used to quickly warm the liquid refrigerant.
  • the air-conditioning control unit 310 determines whether or not the degree of suction superheat, which is an example of the degree of superheat, has reached or exceeded a predetermined value (step ST17).
  • the predetermined value is, for example, 5[K].
  • the air conditioning control unit 310 refers to preset lookup table information to acquire the evaporation temperature corresponding to the refrigerant pressure detected by the first suction pressure sensor 161 . Then, the air conditioning control unit 310 calculates the degree of suction superheat, which is the difference between the refrigerant temperature detected by the first suction temperature sensor 171 and the evaporation temperature. Then, air conditioning control unit 310 determines whether or not the degree of suction superheat is equal to or greater than a predetermined value.
  • step ST17 When the air conditioning control unit 310 determines that the suction superheat is less than the predetermined value (step ST17; NO), the process returns to step ST15. If the degree of suction superheat is less than the predetermined value, the refrigerant may not be sufficiently gasified and liquid refrigerant may flow into the compressor. Therefore, the operation of only the first compressor 101 is continued until the degree of suction superheat becomes sufficiently large.
  • the air conditioning control unit 310 determines that the degree of suction superheat is equal to or greater than the predetermined value (step ST17; YES), it ends the local operation mode and shifts to the host operation mode (step ST31).
  • the suction superheat is equal to or higher than a predetermined value, it is determined that the refrigerant in the low-pressure pipe 137 is sufficiently warmed by the exhaust heat of the gas engine 103 and gasified to flow into the compressor. Therefore, even if the local operation mode is ended and the second compressor 102 is started, the second compressor 102 is suppressed from compressing the liquid refrigerant, so that the reliability of the device can be ensured. .
  • the air-conditioning control unit 310 When determining that the air-conditioning control unit 310 is not in the heating operation (step ST13; NO), the air-conditioning control unit 310 starts activation of the cooling operation or the dehumidifying operation (step ST21).
  • the air conditioning control unit 310 determines the outputs of the first compressor 101 and the second compressor 102 based on the operating environment of the air conditioner 10 (step ST22). After determining the outputs of the first compressor 101 and the second compressor 102, the air conditioning control unit 310 executes the outputs of the first compressor 101 and the second compressor 102 (step ST23).
  • the air conditioning control unit 310 determines whether or not the elapsed time after the output of the first compressor 101 and the second compressor 102 has exceeded a predetermined time (step ST24). ).
  • the predetermined time is ten minutes, for example.
  • air conditioning control section 310 returns to step ST22.
  • the outputs of the first compressor 101 and the second compressor 102 are determined based on the operating environment of the air conditioner 10 until the predetermined time elapses, so the reliability of the equipment can be ensured.
  • the air-conditioning control unit 310 determines that the elapsed time has exceeded the predetermined time (step ST24; YES), it terminates the local operation mode and shifts to the host operation mode (step 31). As a result, it is possible to suppress the excessive execution of the local operation mode, so it is possible to suppress the running cost while ensuring the reliability of the equipment of the air conditioner 10 .
  • the air conditioning control unit 310 acquires an operation instruction from the host control device 30 (step ST32). For example, when the air conditioning control unit 310 stores the operation instruction from the host control device 30 in the storage unit 312, the operation instruction can be acquired from the storage unit 312. . Further, for example, the host control device 30 may be requested to issue a driving command, and the driving command may be obtained from the host control device 30 .
  • the air conditioning control unit 310 determines the outputs of the first compressor 101 and the second compressor 102 based on the operation instruction (step ST33). After determining the output, the air conditioning control unit 310 executes the output of the first compressor 101 and the second compressor 102 (step ST34).
  • the air-conditioning control unit 310 determines whether or not to end the air-conditioning (step ST35). Whether or not to end the air conditioning can be determined based on an input from the operation unit 330, for example. When the air conditioning control unit 310 does not end the air conditioning (step ST35; NO), the process returns to step ST32. When ending the air conditioning (step ST35; YES), the air conditioning control section 310 ends the operation of the air conditioner 10. FIG. As described above, in the air conditioner 10 of the present embodiment, the processing of steps ST11 to ST35 makes it possible to suppress the running cost while ensuring the reliability of the equipment.
  • the air conditioner 10 connects the first compressor 101 driven by the gas engine 103 and the second compressor 102 driven by the electric motor in parallel to circulate the refrigerant.
  • the air conditioning apparatus 10 that performs air conditioning includes a communication unit 320 that communicates with the external host control device 30, and an air conditioning control unit 310 that controls the first compressor 101 and the second compressor 102.
  • the air conditioning control unit 310 selects a host operation mode for executing the output of the first compressor 101 and the second compressor 102 based on an operation instruction from the host control device 30 received via the communication unit 320, and an operation mode from the host control device 30.
  • It has a local operation mode in which the outputs of the first compressor 101 and the second compressor 102 are determined and executed regardless of instructions, and at the start of air conditioning, after starting in the local operation mode, it switches to the host operation mode. Transition.
  • the reliability of the equipment of the air conditioning apparatus 10 can be ensured because the local operation mode is always started at the start of air conditioning, which greatly affects the reliability of the equipment.
  • the air conditioning control unit 310 stops the second compressor 102 and determines and executes only the output of the first compressor 101 in the case of the heating operation. good too.
  • the outdoor air temperature is low and the refrigerant is often stored as liquid refrigerant in the outdoor unit 100 side, and priority is given to the output of the first compressor 101, which is easily warmed by exhaust heat.
  • the refrigerant can be warmed by executing Therefore, it is possible to prevent the second compressor 102 from compressing the liquid refrigerant and from evaporating the refrigerant from the oil (refrigerating machine oil) in the second compressor 102 .
  • the air conditioning control unit 310 may end the local operation mode and shift to the host operation mode when the suction superheat degree of the first compressor 101 is equal to or higher than a predetermined value. As a result, it is possible to shift to the host operation mode in a state in which the refrigerant is sufficiently warmed. Therefore, even if the outputs of the first compressor 101 and the second compressor 102 are executed based on the operation instruction from the host control device 30, the reliability of the equipment of the air conditioner 10 can be ensured.
  • the air conditioning control unit 310 may determine and execute the outputs of the first compressor 101 and the second compressor 102 when the heating operation is not performed. As a result, at the start of air conditioning, the first compressor 101 and the second compressor 101 and the second The output of the two compressors 102 can be performed appropriately.
  • the air conditioning control unit 310 may terminate the local operation mode and shift to the host operation mode when a predetermined time has elapsed since activation. As a result, excessive execution of the local operation mode can be suppressed. Therefore, it is possible to suppress the running cost while ensuring the reliability of the equipment of the air conditioner 10 .
  • Embodiment 1 has been described as an example of the technology disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments with modifications, replacements, additions, omissions, and the like.
  • air conditioning control unit 310 has described a configuration for determining whether or not the suction superheat degree, which is an example of the superheat degree, has reached or exceeded a predetermined value. It may be the degree of discharge superheat. That is, the air conditioning control unit 310 may end the local operation mode and shift to the host operation mode when the discharge superheat degree of the first compressor 101 is equal to or higher than a predetermined value.
  • Embodiment 1 the configuration in which the control device 300 controls each device of the outdoor unit 100 and the indoor unit 200 has been described, but the outdoor unit 100 is provided with a control unit that controls each device of the outdoor unit 100,
  • the indoor unit 200 may be provided with a control unit for controlling each device of the indoor unit 200, and the control unit of the outdoor unit 100 and the control unit of the indoor unit 200 may control the air conditioner 10 while communicating with each other. good.
  • each part shown in FIGS. 1 and 2 is an example, and the specific implementation is not particularly limited. In other words, it is not always necessary to mount hardware corresponding to each part individually, and it is of course possible to adopt a configuration in which one processor executes a program to realize the function of each part. Also, part of the functions implemented by software in the above-described embodiments may be implemented by hardware, or part of the functions implemented by hardware may be implemented by software. In addition, the specific detailed configuration of other parts of the control device 300 can be arbitrarily changed without departing from the scope of the present invention.
  • step unit of the operation shown in FIG. The name does not limit the invention. It may be divided into more steps depending on the processing contents. Also, one step unit may be divided to include more processes. Also, the order of the steps may be changed as appropriate within the scope of the present invention.
  • the present disclosure is applicable to an air conditioner in which a first compressor driven by a gas engine and a second compressor driven by an electric motor are connected in parallel to perform air conditioning by circulating a refrigerant. It is applicable to air conditioners that are operated based on operation instructions from a control device.
  • REFERENCE SIGNS LIST 10 air conditioner 30 host control device 101 first compressor 102 second compressor 103 gas engine 310 air conditioning control section 320 communication section

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  • Air Conditioning Control Device (AREA)

Abstract

La présente divulgation concerne un dispositif de climatisation qui peut maintenir des coûts de fonctionnement bas tout en garantissant la fiabilité du dispositif.　Dans un dispositif de climatisation, selon la présente divulgation, un premier compresseur qui est entraîné par un moteur à gaz et un second compresseur qui est entraîné par un moteur électrique sont reliés en parallèle l'un à l'autre, et un milieu de refroidissement est mis en circulation pour assurer la climatisation. Ledit dispositif de climatisation comprend : une unité de communication qui communique avec un dispositif de commande hôte externe ; et une unité de commande de climatisation qui commande le premier compresseur et le second compresseur. L'unité de commande de climatisation présente un mode de fonctionnement hôte dans lequel le débit du premier compresseur et du second compresseur est obtenu sur la base d'instructions de fonctionnement provenant du dispositif de commande hôte reçues par l'intermédiaire de l'unité de communication, et un mode de fonctionnement local dans lequel le débit du premier compresseur et du second compresseur est déterminé et obtenu sans les instructions de fonctionnement provenant du dispositif de commande hôte. L'unité de commande de climatisation est activée dans le mode de fonctionnement local en début de climatisation, puis passe au mode de fonctionnement hôte.
PCT/JP2022/013287 2021-04-01 2022-03-22 Dispositif de climatisation WO2022210128A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008241165A (ja) * 2007-03-28 2008-10-09 Sanyo Electric Co Ltd 遠隔監視システム
JP2015132411A (ja) * 2014-01-10 2015-07-23 東京瓦斯株式会社 空気調和システム
JP2016111540A (ja) * 2014-12-08 2016-06-20 三菱電機株式会社 家電機器、その運転管理装置及び家電機器の運転管理システム
JP2019015434A (ja) * 2017-07-05 2019-01-31 パナソニックＩｐマネジメント株式会社 空気調和装置
JP2019066131A (ja) * 2017-10-04 2019-04-25 パナソニックＩｐマネジメント株式会社 空気調和装置
JP2021021509A (ja) * 2019-07-25 2021-02-18 パナソニックＩｐマネジメント株式会社 空気調和装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008241165A (ja) * 2007-03-28 2008-10-09 Sanyo Electric Co Ltd 遠隔監視システム
JP2015132411A (ja) * 2014-01-10 2015-07-23 東京瓦斯株式会社 空気調和システム
JP2016111540A (ja) * 2014-12-08 2016-06-20 三菱電機株式会社 家電機器、その運転管理装置及び家電機器の運転管理システム
JP2019015434A (ja) * 2017-07-05 2019-01-31 パナソニックＩｐマネジメント株式会社 空気調和装置
JP2019066131A (ja) * 2017-10-04 2019-04-25 パナソニックＩｐマネジメント株式会社 空気調和装置
JP2021021509A (ja) * 2019-07-25 2021-02-18 パナソニックＩｐマネジメント株式会社 空気調和装置

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