US2024328658A1PendingUtilityA1

Air-conditioning system and air-conditioning control apparatus

Assignee: DAIKIN IND LTDPriority: Dec 17, 2021Filed: Jun 11, 2024Published: Oct 3, 2024
Est. expiryDec 17, 2041(~15.4 yrs left)· nominal 20-yr term from priority
F24F 2110/20F24F 2110/10F24F 2140/50F24F 2140/60F24F 11/77F24F 1/0038F24F 11/74F24F 11/86F24F 11/64F24F 11/46F24F 2203/021F24F 11/0008
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Claims

Abstract

The air-conditioning system according to an embodiment is provided with a ventilation device, an air-conditioner, a processor, and a memory storing one or more programs, which when executed, cause the processor to control the ventilation device and the air-conditioner. The processor stores a first capability indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capability indicating a heat load that can be output corresponding to the power consumption of the air conditioner, acquires the temperature of an indoor space, and sets the ventilation device and the air conditioner to share the first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space according to the first capability and the second capability.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An air-conditioning system comprising:
 a processor;   a ventilation device including:
 a compressor; 
 a first heat exchanger configured to function as a condenser or an evaporator; 
 a first air flow path configured to pass air taken in from outdoors through the first heat exchanger and then supply the air that has passed through the first heat exchanger to an indoor space; 
 a second heat exchanger configured to function as a condenser or an evaporator; 
 a second air flow path configured to pass air taken in from the indoor space through the second heat exchanger and then supply the air that has passed through the second heat exchanger to the outdoors; and 
 a refrigerant circuit in which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe, 
   an air-conditioner including:
 a third heat exchanger configured to function as a condenser or an evaporator; and 
 an air-conditioning indoor device configured to take in air in the indoor space, perform heat exchange on the taken in air with a refrigerant flowing through the third heat exchanger, and exhaust the air that has undergone heat exchange to the indoor space, and 
   a memory storing one or more programs, which when executed, cause the processor to:
 control the ventilation device and the air-conditioner, wherein 
   the processor
 stores a first capability indicating a heat load that can be output by the ventilation device according to power consumption of the ventilation device and a second capability indicating a heat load that can be output by the air-conditioner according to power consumption of the air-conditioner, 
 acquires a temperature of the indoor space, and 
 makes a setting to cause the ventilation device and the air-conditioner to share a first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space, according to the first capability and the second capability. 
   
     
     
         2 . The air-conditioning system according to  claim 1 , wherein
 the ventilation device is provided in plurality,   the air-conditioner is provided in plurality, and   the processor makes a setting to cause the plurality of ventilation devices and the plurality of air-conditioners to share the first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space, according to the first capability and the second capability.   
     
     
         3 . The air-conditioning system according to  claim 1 , wherein the processor causes the first heat exchanger to function as a condenser or an evaporator to adjust a temperature of air supplied to the indoor space, in a case where a part of the first heat load is set as a share assigned to the ventilation device. 
     
     
         4 . The air-conditioning system according to  claim 1 , wherein
 the processor stores, as the first capability, a first minimum heat load determined as a minimum value that can be set based on the power consumption of the ventilation device out of the heat load that can be output by the ventilation device, and stores, as the second capability, a second minimum heat load determined as a minimum value that can be set based on the power consumption of the air-conditioner out of the heat load that can be output by the air-conditioner, and   the processor implements control such that the ventilation device repeats operating by a capability corresponding to a minimum heat load and stopping to operate, and makes a setting such that the air-conditioner stops operating, in a case where the first heat load is less than the first minimum heat load and the first heat load is less than the second minimum heat load.   
     
     
         5 . The air-conditioning system according to  claim 1 , wherein
 the ventilation device is provided in plurality,   the air-conditioner is provided in plurality, and   the processor holds in advance, as the first capability, a minimum heat load determined as a minimum value that can be set based on the power consumption of the ventilation device out of the heat load that can be output by the ventilation device, and holds in advance, as the second capability, a minimum heat load determined as a minimum value that can be set based on the power consumption of the air-conditioner out of the heat load that can be output by the air-conditioner, and   the processor makes a setting to cause at least one of the plurality of ventilation devices to stop operating, and to cause other ones of the plurality of ventilation devices to operate according to a capability corresponding to the first heat load, in a case where the first heat load is less than a sum of the minimum heat loads according to the first capability of the plurality of ventilation devices, and the first heat load is less than a sum of the minimum heat loads according to the second capability of the plurality of air-conditioners.   
     
     
         6 . The air-conditioning system according to  claim 1 , wherein
 the processor holds in advance, as the second capability, a minimum heat load determined as a minimum value that can be set based on the power consumption of the air-conditioner out of the heat load that can be output by the air-conditioner, and   the processor causes the air-conditioner to maintain an operation of processing the minimum heat load of the second capability.   
     
     
         7 . The air-conditioning system according to  claim 1 , wherein when the second heat exchanger is functioning as a condenser, an input target temperature is higher than a temperature of air of the outdoors, and the target temperature is lower than the temperature of air in the indoor space, the processor reduces driving of the compressor, sets an amount of air that can be supplied from the first air flow path to be a maximum value that can be set, and sets an amount of air that can be exhausted from the second air flow path to be a maximum value that can be set. 
     
     
         8 . The air-conditioning system according to  claim 1 , wherein the processor adds a heat load generated in the indoor space to a heat load generated by ventilation between the indoor space and the outdoors, and acquires a result of the addition as the first heat load. 
     
     
         9 . The air-conditioning system according to  claim 1 , wherein the processor adds a heat load corresponding to control of reducing a temperature generated in a first area in the indoor space to a heat load corresponding to control of raising a temperature generated in a second area in the indoor space, and acquires a result of the addition as the first heat load. 
     
     
         10 . The air-conditioning system according to  claim 1 , wherein
 the processor causes the first heat exchanger to function as the evaporator and causes the second heat exchanger to function as the condenser when the first heat load is determined to be a cooling load, and   the processor causes the first heat exchanger to function as the condenser and causes the second heat exchanger to function as the evaporator when the first heat load is determined to be a heating load.   
     
     
         11 . The air-conditioning system according to  claim 1 , wherein
 the ventilation device is provided in each of a first area of the indoor space and a second area in the indoor space, and   the processor acquires a target humidification amount indicating a humidification amount required for the indoor space, and when humidifying the indoor space with the target humidification amount, the processor compares a temperature of air in the first area in the indoor space with a temperature of air in the second area in the indoor space, and allocates a larger humidification amount for an area with a higher temperature among the first area and the second area than a humidification amount to be allocated to an area with a lower temperature among the first area and the second area.   
     
     
         12 . An air-conditioning system comprising:
 a processor;   a ventilation device including:
 a compressor; 
 a first heat exchanger configured to function as a condenser or an evaporator; 
 a first air flow path configured to pass air taken in from outdoors through the first heat exchanger and then supply the air that has passed through the first heat exchanger to an indoor space; 
 a second heat exchanger configured to function as a condenser or an evaporator; 
 a second air flow path configured to pass air taken in from the indoor space through the second heat exchanger and then supply the air that has passed through the second heat exchanger to the outdoors; and 
 a refrigerant circuit in which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe, 
   an air-conditioner including:
 a third heat exchanger configured to function as a condenser or an evaporator; and 
 an air-conditioning indoor device configured to take in air in the indoor space, perform heat exchange on the taken in air with a refrigerant flowing through the third heat exchanger, and exhaust the air that has undergone heat exchange to the indoor space, and 
   a memory storing one or more programs, which when executed, cause the processor to:
 control the ventilation device and the air-conditioner, wherein 
   the control processor adds a humidification amount or a dehumidification amount required for a first area in the indoor space to a humidification amount or a dehumidification amount required for a second area in the indoor space, and perform temperature control by using the first heat exchanger of the ventilation device and the third heat exchanger of the air-conditioner based on a result of the addition.   
     
     
         13 . An air-conditioning system comprising:
 a processor;   a ventilation device including:
 a compressor; 
 a first heat exchanger configured to function as a condenser or an evaporator; 
 a first air flow path configured to pass air taken in from outdoors through the first heat exchanger and then supply the air that has passed through the first heat exchanger to an indoor space; 
 a second heat exchanger configured to function as a condenser or an evaporator; 
 a second air flow path configured to pass air taken in from the indoor space through the second heat exchanger and then supply the air that has passed through the second heat exchanger to the outdoors; and 
 a refrigerant circuit in which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe, 
   an air-conditioner including:
 a third heat exchanger configured to function as a condenser or an evaporator; and 
   an air-conditioning indoor device configured to take in air in the indoor space, perform heat exchange on the taken in air with a refrigerant flowing through the third heat exchanger, and exhaust the air that has undergone heat exchange to the indoor space, and   a memory storing one or more programs, which when executed, cause the processor to:
 control the ventilation device and the air-conditioner, wherein 
   when input of a target humidity in the indoor space is received, the processor performs humidity control by using the first heat exchanger of the ventilation device and the third heat exchanger of the air-conditioner such that an average humidity in the indoor space becomes the target humidity, based on a relative humidity distribution in the indoor space.   
     
     
         14 . An air-conditioning system comprising:
 a processor;   a ventilation device including:
 a compressor; 
 a first heat exchanger configured to function as a condenser or an evaporator; 
 a first air flow path configured to pass air taken in from outdoors through the first heat exchanger and then supply the air that has passed through the first heat exchanger to an indoor space; 
 a second heat exchanger configured to function as a condenser or an evaporator; 
 a second air flow path configured to pass air taken in from the indoor space through the second heat exchanger and then supply the air that has passed through the second heat exchanger to the outdoors; and 
 a refrigerant circuit in which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe, 
   an air-conditioner including:
 a third heat exchanger configured to function as a condenser or an evaporator; and 
 an air-conditioning indoor device configured to take in air in the indoor space, perform heat exchange on the taken in air with a refrigerant flowing through the third heat exchanger, and exhaust the air that has undergone heat exchange to the indoor space, and 
   a memory storing one or more programs, which when executed, cause the processor to:
 control the ventilation device and the air-conditioner, wherein 
   the first air flow path includes a plurality of air supply ports for supplying air to the indoor space, and includes a first air volume adjustment mechanism configured to adjust an air volume for each of the air supply ports,
 the second air flow path includes a plurality of exhaust ports for taking in air from the indoor space, and includes a second air volume adjustment mechanism configured to adjust an air volume for each of the exhaust ports, and 
 the processor controls, for each of the air supply ports, the first air volume adjustment mechanism of the corresponding supply port, and the processor controls, for each of the exhaust ports, the second air volume adjustment mechanism of the corresponding exhaust port. 
   
     
     
         15 . The air-conditioning system according to  claim 14 , wherein
 the processor stores first position information indicating a position of each of the air supply ports and second position information indicating a position of each of the exhaust ports, and   the processor controls the first air volume adjustment mechanism and the second air volume adjustment mechanism based on the position of the air supply port indicated by the first position information and the position of the exhaust port indicated by the second position information.   
     
     
         16 . The air-conditioning system according to  claim 14 , further comprising:
 a heat transfer apparatus including:
 a second compressor; 
 a fourth heat exchanger configured to function as a condenser or an evaporator, the fourth heat exchanger being provided in a seventh area in the indoor space; 
 a fifth heat exchanger configured to function as a condenser or an evaporator, the fifth heat exchanger being provided in an eighth area in the indoor space; and 
 a second refrigerant circuit in which a refrigerant flows, the second refrigerant circuit being connected to the second compressor, the fourth heat exchanger, and the fifth heat exchanger by a refrigerant pipe, wherein 
   the processor causes the fourth heat exchanger to function as one of a condenser or an evaporator and causes the fifth heat exchanger to function as another one of a condenser or an evaporator.   
     
     
         17 . The air-conditioning system according to  claim 14 , wherein
 the plurality of air supply ports are provided in an indoor space different from the indoor space in which the plurality of exhaust ports are provided, and   when an amount of air taken in from at least one exhaust port of the plurality of exhaust ports changes, the processor adjusts an amount of air taken in by another exhaust port of the plurality of exhaust ports by using the second air volume adjustment mechanism, such that a sum of amounts of air supplied from the plurality of air supply ports and a sum of amounts of air taken in from the plurality of exhaust ports substantially match each other.   
     
     
         18 . An air-conditioning system comprising:
 a processor;   a ventilation device including:
 a compressor; 
 a first heat exchanger configured to function as a condenser or an evaporator; 
 a first air flow path configured to pass air taken in from outdoors through the first heat exchanger and then supply the air that has passed through the first heat exchanger to an indoor space; 
 a second heat exchanger configured to function as a condenser or an evaporator; 
 a second air flow path configured to pass air taken in from the indoor space through the second heat exchanger and then supply the air that has passed through the second heat exchanger to the outdoors; and 
 a refrigerant circuit in which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe, 
   an air-conditioner including:
 a third heat exchanger configured to function as a condenser or an evaporator; and 
 an air-conditioning indoor device configured to take in air in the indoor space, perform heat exchange on the taken in air with a refrigerant flowing through the third heat exchanger, and exhaust the air that has undergone heat exchange to the indoor space, and 
   a memory storing one or more programs, which when executed, cause the processor to:
 control the ventilation device and the air-conditioner, wherein 
   the first heat exchanger is configured to reduce an evaporation temperature of a refrigerant flowing through the first heat exchanger, and   when a target temperature and a target humidity are set, and the first heat exchanger is functioning as an evaporator, the processor implements control to dehumidify air flowing in a state where the evaporation temperature in the first heat exchanger is reduced to reach the target humidity, and controls the temperature by the air-conditioner to reach the target temperature.   
     
     
         19 . The air-conditioning system according to  claim 18 , wherein when the target temperature and the target humidity are set, and the first heat exchanger is functioning as an evaporator, when performing heat exchange on the air flowing in a state where the evaporation temperature in the first heat exchanger is reduced, the processor implements control such that the air supplied to the indoor space after being subjected to heat exchange in the second heat exchanger maintains a temperature corresponding to the target humidity on a curve of 100% relative humidity in an air diagram.

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