WO2022208802A1 - 空気調和システム - Google Patents
空気調和システム Download PDFInfo
- Publication number
- WO2022208802A1 WO2022208802A1 PCT/JP2021/014007 JP2021014007W WO2022208802A1 WO 2022208802 A1 WO2022208802 A1 WO 2022208802A1 JP 2021014007 W JP2021014007 W JP 2021014007W WO 2022208802 A1 WO2022208802 A1 WO 2022208802A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- space
- zone
- fan
- air conditioner
- Prior art date
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 230000003750 conditioning effect Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 46
- 238000010792 warming Methods 0.000 abstract 1
- 238000010926 purge Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present disclosure relates to air conditioning systems.
- Patent Document 1 discloses an air conditioning system in which cold draft countermeasures are taken in the perimeter zone by the window.
- the air conditioning system described in Patent Document 1 includes a slit suction port provided on the floor surface of the perimeter zone, a first duct having a suction port in an underfloor chamber below the floor surface, and a ceiling chamber above the ceiling of the interior zone. and a fan for blowing air from the first duct to the second duct.
- the air conditioning system By driving the fan, the air conditioning system sends the cold draft airflow sucked from the suction port of the first duct to the second duct, and is arranged at a position corresponding to the interior zone from the outlet of the second duct. It is configured to blow against the air conditioner during cooling operation.
- the air in the perimeter zone and the air in the interior zone may be conditioned using different air conditioners.
- the air conditioner for the perimeter zone is heated to warm the perimeter zone, while the interior zone is cooled by operating the air conditioner for the interior zone.
- Patent Document 1 when adopting a configuration in which the cold draft airflow is blown to the air conditioner in cooling operation via a duct, an airflow is generated in the duct along with the installation of a dedicated duct. It is necessary to install a duct fan to make it work. In this case, there is concern that there will be restrictions on the installation of ducts and duct fans. In addition, there are concerns about an increase in the installation cost of the duct and the duct fan, and an increase in the power consumption of the air conditioning system due to the driving of the duct fan. Therefore, it may become difficult to obtain cost-effectiveness in measures for reducing mixing loss.
- the present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide an air conditioning system capable of reducing mixing loss with a highly cost-effective configuration. .
- An air conditioning system includes a first air conditioner for conditioning air in an indoor perimeter zone of a building and a second air conditioner for conditioning air in an interior zone of a building. , a first blower, a second blower, and a controller.
- the first air blower is configured to suck air sent to the floor surface of the perimeter zone and blow the air toward the interior zone.
- the second air blower is configured to suck air sent to the ceiling of the interior zone and blow the air toward the perimeter zone.
- the controller drives the first air blower and the second air blower when the first air conditioner is in heating operation and the second air conditioner is in cooling operation.
- FIG. 2 is a cross-sectional view taken along line II-II shown in FIG. 1;
- FIG. 2 is a cross-sectional view taken along line III-III shown in FIG. 1;
- 3 is a schematic diagram showing an example of the hardware configuration of a controller;
- FIG. It is a figure which shows an example of the functional structure of a controller.
- 4 is a flowchart for explaining fan control in a controller;
- FIG. 2 is a diagram showing a schematic configuration of an air conditioning system according to Embodiment 2;
- FIG. 1 a schematic configuration of an air conditioning system according to Embodiment 1 will be described with reference to FIGS. 1 to 3.
- FIG. 1 The air conditioning system according to Embodiment 1 is applied to an air conditioning system for conditioning air in room 940 of building 900 .
- FIG. 1 is a plan view of a room 940 of the building 900 viewed from the ceiling.
- FIG. 2 is a cross-sectional view along line II-II shown in FIG.
- FIG. 3 is a cross-sectional view along line III-III shown in FIG.
- the interior 940 of the building 900 is conceptually divided into a perimeter zone 941 and an interior zone 942.
- Perimeter zone 941 and interior zone 942 are adjacent to each other.
- the perimeter zone 941 is on the outer wall 901 side (or the window 902 side) of the building 900 with respect to the virtual line L.
- the central side of the building 900 with respect to the virtual line L is the interior zone 942 .
- the "perimeter zone” is typically an area from the window 902 to around 5 m. However, since the perimeter zone is determined by the structure of the building 900, etc., the distance from the window 902 is not limited to 5 m.
- Air conditioner 501 for conditioning the air in the perimeter zone 941 is installed in the perimeter zone 941 .
- Air conditioner 501 corresponds to an example of "first air conditioner”.
- the air conditioner 501 is installed, for example, on the floor surface 970 near the window 902 side.
- the air conditioner 501 (in this example, the indoor unit) sucks air near the floor surface 970 through the suction port 510 and blows the air upward from the air conditioner 501 through the outlet 530 .
- Air conditioner 601 for conditioning the air in the interior zone 942 is installed in the ceiling space 960 .
- Air conditioner 601 corresponds to an embodiment of the "second air conditioner”.
- the ceiling space 960 is a space formed by providing the ceiling 950 .
- the ceiling space 960 corresponds to the "second space”.
- the air conditioner 601 is installed in the space above the interior zone 942 in the space above the ceiling 960 .
- a ceiling 950 in the interior zone 942 is provided with an air inlet 610 , a duct 620 and an air outlet 630 .
- the suction port 610 is provided closer to the window 902 than the air outlet 630 is.
- the air conditioner 601 (in this example, the indoor unit) sucks in air from the suction port 610 and blows out air from the blowout port 630 . Specifically, the air sucked from the suction port 610 passes through the duct 620 and is sucked into the air conditioner 601 . Air blown out from air conditioner 601 passes through duct 620 and is blown out from outlet 630 to interior zone 942 .
- the air conditioning system according to Embodiment 1 includes air conditioners 501 and 601, temperature sensors 120 and 130, controller 110, and fans 210, 220, 230, and 240 described above.
- the temperature sensor 120 detects the temperature of the perimeter zone 941 and outputs a signal indicating the detected value to the controller 110 .
- the temperature sensor 120 detects the temperature near the outlet 530 of the air conditioner 501 in the perimeter zone 941 .
- the controller 110 can accurately determine whether the air conditioner 501 is in heating operation.
- the installation position of temperature sensor 120 is not limited to outlet 530 of air conditioner 501 .
- Temperature sensor 130 detects the temperature of interior zone 942 and outputs a signal indicating the detected value to controller 110 .
- the temperature sensor 130 is installed near the outlet 630 of the air conditioner 601 .
- Temperature sensor 130 detects the temperature near outlet 630 of air conditioner 601 in interior zone 942 .
- the controller 110 can accurately determine whether the air conditioner 601 is in cooling operation.
- the installation position of temperature sensor 130 is not limited to the vicinity of outlet 630 .
- the floor surface 970 of the perimeter zone 941 is provided with a suction port 270 that communicates with the underfloor 980 .
- the underfloor 980 is a space formed by providing the floor surface 970 .
- the underfloor 980 corresponds to the "first space”
- the suction port 270 corresponds to the "first suction port”.
- the floor surface 970 of the interior zone 942 is provided with an air outlet 280 that communicates with the underfloor 980 .
- the outlet 280 corresponds to the "first outlet”.
- the ceiling 950 of the interior zone 942 is provided with a suction port 260 that communicates with the ceiling space 960 .
- the suction port 260 corresponds to the "second suction port”.
- a ceiling 950 in the perimeter zone 941 is provided with an air outlet 250 that communicates with the ceiling space 960 .
- the outlet 250 corresponds to the "second outlet”.
- the fan 230 is installed under the floor 980 and is configured to suck the air sent to the floor surface 970 of the perimeter zone 941 through the suction port 270 and blow it out to the underfloor 980 .
- Fan 230 corresponds to one embodiment of "first fan.”
- a cross flow fan can be applied to the fan 230 .
- a cross-flow fan can form a two-dimensional air flow in a direction perpendicular to the rotation axis of an impeller contained therein.
- the cross-flow fan is, for example, a line-flow fan (registered trademark), a cross-flow fan, a cross-flow fan, or a cross-flow fan.
- Fan 230 is arranged to blow two-dimensional airflow toward interior zone 942 .
- the fan 240 is installed in the underfloor 980 and configured to take in air from the underfloor 980 and blow it out from the air outlet 280 to the interior zone 942 .
- Fan 240 corresponds to one embodiment of a "second fan.”
- a cross-flow fan can be applied.
- Fan 240 is arranged to blow two-dimensional airflow toward interior zone 942 .
- the fan 220 is installed in the ceiling space 960 and is configured to suck the air sent to the ceiling 950 of the interior zone 942 from the air inlet 260 and blow it out to the ceiling space 960 .
- Fan 220 corresponds to one embodiment of a "third fan.”
- a cross flow fan can be applied.
- the fan 220 is arranged to blow two-dimensional airflow toward the perimeter zone 941 side.
- the fan 210 is installed in the ceiling space 960 and is configured to suck in the air in the ceiling space 960 and blow it out from the air outlet 250 to the perimeter zone 941 .
- Fan 210 corresponds to one embodiment of a "fourth fan.”
- a cross flow fan can be applied to the fan 210 .
- Fan 240 is arranged to blow two-dimensional airflow toward perimeter zone 941 .
- each of the fans 210 to 240 is configured to apply a cross-flow fan (for example, a line flow fan).
- a cross-flow fan represented by a line flow fan has a feature that it consumes less power than an axial-flow fan such as a propeller fan, although the air volume is small. Therefore, by applying a cross-flow fan to each of the fans 210 to 240, it is possible to form an air flow between the perimeter zone 941 and the interior zone 942 while saving power.
- the controller 110 is communicatively connected to the temperature sensors 120, 130 and the fans 210-240. Controller 110 controls fans 210 - 240 based on signals input from temperature sensors 120 and 130 . Control of fans 210 to 240 by controller 110 will be described later.
- FIG. 4 is a schematic diagram showing an example of the hardware configuration of the controller 110. As shown in FIG.
- the controller 110 includes, as main components, a processor 11 such as a CPU (Central Processing Unit) or MPU (Micro-Processing Unit), a ROM (Read Only Memory) 12, and a RAM (Random Access Memory). ) 13 , a flash memory 14 , a communication IF (Interface) 15 and a clock 16 . These components are communicatively connected to each other via an internal bus.
- a processor 11 such as a CPU (Central Processing Unit) or MPU (Micro-Processing Unit), a ROM (Read Only Memory) 12, and a RAM (Random Access Memory).
- a flash memory 14 such as a flash memory 14 , a communication IF (Interface) 15 and a clock 16 .
- the processor 11 executes the program.
- the ROM 12 stores data in a non-volatile manner.
- RAM 13 volatilely stores data generated by execution of a program by processor 11 or data input via an input device (not shown).
- the flash memory 14 stores data in a non-volatile manner.
- the communication IF 15 is an interface for communicating with other various devices.
- the processing in the controller 110 is implemented by each piece of hardware and software executed by the processor.
- Such software may be pre-stored in the flash memory 14 .
- the software may be stored in another storage medium and distributed as a program product.
- the software may be provided as a downloadable program product by a so-called Internet-connected information provider.
- Such software is temporarily stored in the flash memory 14 after being read from the storage medium by a reading device or downloaded via the communication IF 15 or the like.
- the software is read from flash memory 14 by processor 11 and stored in RAM 13 in an executable format. Processor 11 executes the program.
- controller 110 Each component constituting the controller 110 shown in FIG. 4 is general. Therefore, it can be said that the essential part of the present disclosure is software stored in RAM 13, flash memory 14, storage media, or software that can be downloaded via a network. Since the operation of each piece of hardware of controller 110 is well known, detailed description will not be repeated.
- FIG. 5 is a diagram showing an example of the functional configuration of the controller 110. As shown in FIG.
- the controller 110 has temperature information acquisition units 111 and 112, a determination unit 113, a command generation unit 114, a communication IF unit 115, and a transmission unit .
- the temperature information acquisition unit 111 acquires the temperature near the temperature sensor 120 (that is, the temperature of the perimeter zone 941) based on the electrical signal transmitted from the temperature sensor 120.
- the temperature information acquisition unit 112 acquires the temperature near the temperature sensor 130 (that is, the temperature of the interior zone 942) based on the electrical signal transmitted from the temperature sensor 130.
- the determination unit 113 determines whether or not the air conditioner 501 in the perimeter zone 941 is performing heating operation based on the temperature information acquired by the temperature information acquisition unit 111 . Furthermore, determination unit 113 determines whether or not air conditioner 601 in interior zone 942 is performing cooling operation based on the temperature information acquired by temperature information acquisition unit 112 . The determination unit 113 notifies the instruction generation unit 114 of the determination result.
- the controller 110 determines that the air conditioner 501 is in heating operation if the temperature near the outlet 530 of the air conditioner 501 is equal to or higher than a predetermined first threshold. Controller 110 determines that air conditioner 601 is in cooling operation if the temperature near outlet 630 of air conditioner 601 is equal to or lower than a second predetermined threshold.
- the command generation unit 114 selectively generates a drive command for driving the fans 210 to 240 and a stop command for stopping the driven fans 210 to 240 according to the determination result notified from the determination unit 113. . Specifically, the command generation unit 114 generates a drive command when the air conditioner 501 is performing the heating operation and the air conditioner 601 is performing the cooling operation. Commands are sent to fans 210 - 240 via transmitter 116 . On the other hand, the command generation unit 114 generates a stop command when the air conditioner 501 is not performing the heating operation and/or when the air conditioner 601 is not performing the cooling operation. Commands are sent to fans 210 - 240 via transmitter 116 .
- Fans 210 to 240 are driven in response to drive commands from controller 110 .
- a stop command is received from the controller 110 in the driving state, the fans 210-240 stop.
- FIG. 2 schematically shows the air flow in the room 940 when the air conditioner 501 is performing the cooling operation and the air conditioner 601 is performing the heating operation.
- the operation shown in FIG. 2 may be executed in the morning in winter when the room temperature is low.
- the temperature of the perimeter zone 941 is lowered by the heat radiation of the window 902, and the air conditioner 501 performs the heating operation by generating a heating load.
- the temperature of the interior zone 942 rises due to heat radiation from people, lighting equipment, electronic equipment, etc. in the room 940, and the air conditioner 601 performs the cooling operation due to the cooling load.
- the air (that is, warm air) blown out from the outlet 530 of the air conditioner 501 in heating operation travels in the direction of arrow 51 .
- Warm air diffuses and generally travels in the direction of arrow 52 .
- the warm air remaining near the ceiling 950 is sucked from the suction port 610 of the air conditioner 601 in cooling operation (see arrow 63). Therefore, air conditioner 601 further performs cooling operation.
- the air (that is, cool air) blown out from the outlet 630 of the air conditioner 601 during cooling operation travels in the direction of the arrow 61 .
- the cool air then diffuses and travels generally in the direction of arrow 62 .
- the cool air remaining near the floor surface 970 is sucked from the suction port 510 of the air conditioner 501 in heating operation (see arrow 55). Therefore, air conditioner 501 further performs heating operation.
- Embodiment 1 when air conditioner 501 is performing heating operation and air conditioner 601 is performing cooling operation, fans 210 to 240 are driven as shown in FIG. Control the increase in heating load.
- FIG. 3 schematically shows the air flow in the room 940 when the fans 210-240 are driven.
- a phenomenon (so-called cold draft phenomenon) occurs in which indoor air touches the window 902, is cooled, and descends to the floor surface 970 (see arrow 80).
- This cold draft phenomenon increases the heating load. Since the fan 230 is driven, the cool air remaining near the floor surface 970 is sucked into the underfloor 980 through the suction port 270 (see arrow 71). Cool air sucked into the underfloor 980 is blown out toward the interior zone 942 by the fan 230 and proceeds in the direction of the arrow 72 .
- the fan 220 is driven, so the warm air staying near the ceiling 950 is sucked into the space above the ceiling 960 through the air inlet 260 (see arrow 75).
- the warm air sucked into the ceiling space 960 is blown out toward the perimeter zone 941 side by the fan 220 and advances in the direction of the arrow 76 .
- warm air is sucked into the fan 210 (see arrow 77) and blown out from the outlet 250 toward the perimeter zone 941 (see arrow 70).
- the warm air blown into the perimeter zone 941 is diffused and raises the temperature of the perimeter zone 941 . As a result, the heating load of air conditioner 501 is reduced.
- Fans 230 and 240 are an example of a "first blower" configured to draw in air (cold air) sent to floor surface 970 of perimeter zone 941 and blow the air toward interior zone 942. corresponds to
- fans 210 and 220 By driving fans 210 and 220, warm air that increases the cooling load in interior zone 942 during cooling operation can be sent to perimeter zone 941 during heating operation. As a result, an increase in the cooling load of air conditioner 601 can be suppressed, and the heating load of air conditioner 501 can be reduced.
- Fans 210 and 220 are an example of a "second blower" configured to draw in air (warm air) sent to ceiling 950 of interior zone 942 and blow the air toward perimeter zone 941. handle.
- FIG. 6 is a flowchart for explaining the control of the fans 210-240 by the controller 110.
- FIG. The flowchart of FIG. 6 is repeatedly executed at a predetermined cycle.
- step S01 the controller 110 acquires temperature information from the temperature sensor 120 installed in the perimeter zone 941.
- step S ⁇ b>02 controller 110 acquires temperature information from temperature sensor 130 installed in interior zone 942 .
- step S03 based on the temperature information acquired from temperature sensors 120 and 130, controller 110 determines that air conditioner 501 in perimeter zone 941 is performing heating operation, and air conditioner 601 in interior zone 942 is Determine whether cooling operation is being performed.
- step S03 When it is determined in step S03 that air conditioner 501 is performing heating operation and air conditioner 601 is performing cooling operation (YES in S03), controller 110 performs step S04. to determine whether or not the fans 210 to 240 are in the driving state.
- the controller 110 If the fans 210 to 240 are in a driving state (YES in S04), the controller 110 returns to step S01. On the other hand, if the fans 210 to 240 are not in a driving state, that is, if the fans 210 to 240 are in a stopped state (NO determination in S04), the controller 110 transmits a driving command to the fans 210 to 240 in step S05. By doing so, the fans 210 to 240 are driven.
- controller 110 proceeds to step S06. Next, it is determined whether or not the fans 210 to 240 are in the driving state.
- the controller 110 When the fans 210 to 240 are not in a driving state, that is, when the fans 210 to 240 are in a stopped state (NO determination in S06), the controller 110 returns to step S01. On the other hand, if the fans 210 to 240 are in a driving state (YES determination in S06), the controller 110 stops the fans 210 to 240 by transmitting a stop command to the fans 210 to 240 in step S07. .
- the air conditioning system sucks air sent to floor surface 970 of perimeter zone 941 and blows the air toward interior zone 942.
- a blower unit (fans 230, 240) and a second blower unit (fans 210, 220) configured to draw air sent to the ceiling 950 of the interior zone 942 and blow the air toward the perimeter zone 941.
- the first blower and the second blower By driving , an increase in the heating load of air conditioner 501 and the cooling load of air conditioner 601 can be suppressed. As a result, it is possible to reduce the mixing loss that occurs when the cooling operation and the heating operation are performed simultaneously.
- the first air blower (fans 230, 240) and the second air blower (fans 210, 220) are provided with a line flow that consumes less power than a duct fan or the like.
- a cross-flow blower such as a fan, it becomes possible to reduce the mixing loss in a cost-effective system configuration.
- Embodiment 2 A schematic configuration of an air conditioning system according to Embodiment 2 will be described with reference to FIG.
- FIG. 7 is a cross-sectional view taken along line III-III shown in FIG. 1 of an interior 940 of building 900 to which the air conditioning system according to Embodiment 2 is applied.
- the air conditioning system according to Embodiment 2 differs from the air conditioning system according to Embodiment 1 in that an opening/closing window 904 is further provided.
- the description of the parts common to the air conditioning system according to Embodiment 1 will be omitted.
- the opening/closing window 904 is provided in part of the window 902 .
- the opening/closing window 904 is formed so as to be openable/closable by a hinge (not shown) or the like. By opening the opening/closing window 904 , it is possible to take in air (outside air) from the outside of the building 900 into the room 940 .
- the opening/closing window 904 is connected to the controller 110 .
- Openable window 904 corresponds to one embodiment of an "openable member.” Note that the opening/closing member is not limited to the opening/closing window 904, and may be formed so as to be openable and closable so as to allow outside air to enter the room 940 in the open state.
- the controller 110 controls the driving of the fans 210 to 240 and controls the opening/closing operation of the opening/closing window 904 .
- controller 110 operates fans 210 to 240. Therefore, the air conditioning system according to the second embodiment can also obtain the same effect as the air conditioning system according to the first embodiment.
- the controller 110 opens the opening/closing window 904 when a predetermined condition is satisfied while the operation of the air conditioners 501 and 601 is stopped. Then, controller 110 drives fans 210 to 240 when opening/closing window 904 is in the open state.
- the air conditioning system according to Embodiment 2 realizes night purge by opening the opening/closing window 904 and driving the fans 210 to 240 .
- the night purge is an operation in which low-temperature outdoor air at night is taken into the building 900 and circulated to lower the temperature of the building 900 itself. Night purging is usually performed in the summer and in-between summer and winter. By performing the night purge, the cooling load at the start of cooling operation on the next day can be reduced.
- FIG. 8 is a diagram showing an example of the functional configuration of the controller 110. As shown in FIG.
- the controller 110 includes driving information acquisition units 111A and 112A, a determination unit 113, a command generation unit 114, a communication IF unit 115, a transmission unit 116, and a clock unit 117.
- the operation information acquisition unit 111A acquires information (operation information) indicating the operation mode of the air conditioner 501 based on the electrical signal transmitted from the air conditioner 501.
- the operation modes of air conditioner 501 include a heating operation mode, a cooling operation mode, and a stop mode in which neither heating operation nor cooling operation is performed.
- the operation information acquisition unit 112A acquires information (operation information) indicating the operation mode of the air conditioner 601 based on the electrical signal transmitted from the air conditioner 601.
- the operation modes of air conditioner 601 include a heating operation mode, a cooling operation mode, and a stop mode in which neither heating operation nor cooling operation is performed.
- the determination unit 113 determines whether the air conditioner 501 is performing the heating operation, the cooling operation, or the operation is stopped. judge. Further, determination unit 113 determines whether air conditioner 601 is performing heating operation, cooling operation, or has stopped operation based on the operation information acquired by operation information acquisition unit 112A. judge. The determination unit 113 notifies the instruction generation unit 114 of the determination result.
- the command generation unit 114 selectively generates a drive command for driving the fans 210 to 240 and a stop command for stopping the driven fans 210 to 240 according to the determination result notified from the determination unit 113. .
- the command generation unit 114 generates a drive command when the air conditioner 501 is performing the heating operation and the air conditioner 601 is performing the cooling operation. Commands are sent to fans 210 - 240 via transmitter 116 . Fans 210 - 240 are driven in response to drive commands from controller 110 . When a stop command is received from the controller 110 in the driving state, the fans 210-240 stop.
- the communication IF unit 115 collects weather information for the area where the building 900 is located from an external system via the network.
- the weather information includes information such as the temperature, humidity, wind speed, amount of precipitation (or probability of precipitation) in the area where the building 900 is located.
- the weather information includes weather information at the current time and weather forecast information for a predetermined time ahead from the current time. Weather information can be collected from the Japan Meteorological Agency, private weather information service companies, or the like.
- the current weather information may be collected by receiving observation data from a weather observation device (not shown) installed outside building 900 via communication IF section 115 .
- Clock unit 117 notifies determination unit 113 of time information indicating the current date and time. Determining unit 113 determines whether a predetermined condition is satisfied based on time information from clock unit 117 and weather information (including weather forecast information) collected via communication IF unit 115. .
- the conditions are conditions for determining whether or not the night purge can be performed, and can be set by the user of the air conditioning system using an input device (not shown). Conditions set by user input are stored in the flash memory 14 .
- the time conditions include information specifying the time period for the night purge. Night time periods in the summer and mid-season can be specified as the time periods in which the night purge is performed.
- Weather-related conditions include information that specifies the weather (outside temperature, humidity, wind speed, amount of precipitation, etc.) suitable for conducting night purges.
- This condition may include, for example, that the outside temperature is less than or equal to the threshold temperature, that the humidity is less than or equal to the threshold humidity, that the wind speed is less than or equal to the threshold wind speed, and that the amount of precipitation is less than or equal to the threshold amount. can.
- the outside air temperature may include that the difference between the outside air temperature and the temperature of interior zone 942 detected by temperature sensor 130 is equal to or greater than the threshold.
- the determination unit 113 determines whether or not the current date and time are included in the time period for performing the night purge. Furthermore, based on the weather information, the determination unit 113 determines whether the weather (outside temperature, humidity, wind speed, amount of precipitation, etc.) for a predetermined time from the current time satisfies the weather conditions described above. The determination unit 113 notifies the instruction generation unit 114 of the determination result.
- the command generation unit 114 selectively generates a drive command for driving the fans 210 to 240 and a stop command for stopping the driven fans 210 to 240 according to the determination result notified from the determination unit 113. . Specifically, (1) the air conditioner 501 and the air conditioner 601 are not operating, (2) the current date and time are included in the night purge time zone, ( 3) If the weather from the current time to the predetermined time ahead satisfies the predetermined weather conditions, the command generation unit 114 generates an opening command and transmits the generated opening command. It is transmitted to the opening/closing window 904 via the unit 116 . Command generation unit 114 further generates a drive command and transmits the generated drive command to fans 210 to 240 via transmission unit 116 .
- the command generation unit 114 determines whether at least one of the above items (1) to (3) is satisfied. If at least one of the above items (1) to (3) is not satisfied, the command generation unit 114 generates a closing command, and transmits the generated closing command via the transmission unit 116 to the opening/closing window. 904. Command generator 114 further generates a stop command and transmits the generated stop command to fans 210 to 240 via transmitter 116 .
- the opening/closing window 904 opens in response to an opening command from the controller 110 .
- a closing command is received from the controller 110 in the open state, the opening/closing window 904 is closed.
- Fans 210 to 240 are driven in response to drive commands from controller 110 .
- a stop command is received from the controller 110 in the driving state, the fans 210-240 stop.
- FIG. 7 schematically shows the air flow in the room 940 when the air conditioner 501 and the air conditioner 601 are out of operation and the opening/closing window 904 is open.
- the openable window 904 is opened, so that outside air (cold air) with a low temperature flows into the room 940 of the building 900 .
- the cool air that has flowed into the room 940 travels in the direction of the arrow 82 and stays near the floor surface 970 . Since the fan 230 is driven, the cool air remaining near the floor surface 970 is sucked into the underfloor 980 through the suction port 270 (see arrow 71). Cool air sucked into the underfloor 980 is blown out toward the interior zone 942 by the fan 230 and proceeds in the direction of the arrow 72 .
- the fan 220 is driven, so the warm air staying near the ceiling 950 is sucked into the space above the ceiling 960 through the air inlet 260 (see arrow 75).
- the warm air sucked into the ceiling space 960 is blown out toward the perimeter zone 941 side by the fan 220 and advances in the direction of the arrow 76 .
- warm air is sucked into the fan 210 (see arrow 77) and blown out from the outlet 250 toward the perimeter zone 941 (see arrow 70).
- the warm air blown out to the perimeter zone 941 passes through the opening/closing window 904 and is discharged to the outside of the building 900 .
- FIG. 9 is a flowchart for explaining the control of the opening/closing window 904 and the fans 210 to 240 in the controller 110.
- FIG. The flowchart of FIG. 9 is repeatedly executed at a predetermined cycle.
- step S11 the controller 110 acquires operation information from the air conditioner 501 for the perimeter zone 941.
- step S ⁇ b>12 controller 110 acquires operation information from air conditioner 601 for interior zone 942 .
- step S13 the controller 110 acquires time information indicating the current date and time.
- step S14 the controller 110 acquires weather information for the area where the building 900 is located.
- the weather information includes weather information at the current time and weather forecast information for a predetermined time ahead from the current time.
- step S15 the controller 110 determines whether the air conditioners 501 and 601 have stopped operating based on the operation information acquired from the air conditioners 501 and 601.
- step S15 If it is determined in step S15 that both air conditioner 501 and air conditioner 601 have stopped operating (YES determination in S15), controller 110 proceeds to step S16, and the current date and time are night. It is determined whether or not it is within a predetermined time period for performing the purge.
- step S16 the controller 110 proceeds to step S17, where the weather (outside temperature , humidity, wind speed and amount of precipitation) satisfies predetermined weather conditions suitable for performing the night purge.
- step S17 If the weather from the current time to the predetermined time ahead satisfies the predetermined weather conditions in step S17 (YES determination in S17), the controller 110 determines in step S18 whether the opening/closing window 904 is open. judge.
- the controller 110 proceeds to step S20.
- the controller 110 transmits an opening command to the opening/closing window 904 in step S19, thereby opening and closing the window. Open window 904 .
- the controller 110 determines whether the fans 210 to 240 are in a driving state. If the fans 210 to 240 are in the driving state (YES determination in S20), the controller 110 returns to step S11. On the other hand, when the fans 210 to 240 are not in a driving state, that is, when the fans 210 to 240 are in a stopped state (NO determination in S20), the controller 110 transmits a driving command to the fans 210 to 240 in step S21. By doing so, the fans 210 to 240 are driven.
- controller 110 proceeds to step S22 to determine whether fans 210 to 240 are in a driving state. determine whether or not
- the controller 110 proceeds to step S24.
- the controller 110 stops the fans 210 to 240 by transmitting a stop command to the fans 210 to 240 in step S23. .
- the controller 110 determines whether the opening/closing window 904 is open. If the opening/closing window 904 is open (NO determination in S24), the controller 110 closes the opening/closing window 904 by transmitting a closing command to the opening/closing window 904 in step S25. On the other hand, if the opening/closing window 904 is not open, that is, if the opening/closing window 904 is closed (YES in S24), the controller 110 returns to step S11.
- the air conditioning system according to Embodiment 2 can also obtain the same effect as the air conditioning system according to Embodiment 1.
- opening/closing window 904 is opened and By driving the first air blower (fans 230, 240) and the second air blower (fans 210, 220), outside air can be taken into the building 900 and circulated. Therefore, it is possible to carry out a night purge, in which outside air having a low nighttime temperature is taken into the building 900 to lower the temperature of the building 900 itself.
- the configuration in which the first blower section includes the fans 230 and 240 installed under the floor was exemplified. It is good also as a structure which has either.
- one fan is configured to suck the air sent to the floor surface 970 from the suction port 270 into the underfloor 980 and blow the air from the underfloor 980 toward the blowout port 280 interior zone 942 .
- the underfloor 980 can be used as a ventilation path, there is no need to install a dedicated duct. Further, by applying a low power consumption cross-flow fan to at least one of the fans 230 and 240, an increase in power consumption due to the driving of the fans 230 and 240 can be suppressed.
- the first air blower is installed on the floor 970 instead of the underfloor 980. is also possible.
- the configuration in which the second blower unit includes the fans 210 and 220 installed in the ceiling space 960 was exemplified. 220 may be used. In this case, one fan is configured to suck the air sent to the ceiling 950 into the ceiling space 960 through the air inlet 260 and blow the air in the ceiling space 960 from the air outlet 250 toward the perimeter zone 941 .
- any configuration since the space above the ceiling 960 can be used as a ventilation path, there is no need to install a dedicated duct. Further, by applying a low power consumption cross-flow fan to at least one of the fans 210 and 220, an increase in power consumption due to driving the fans 210 and 220 can be suppressed.
- the second blower may be installed on the ceiling 950 instead of the ceiling space 960. It is possible.
- FIG. 10 is a diagram showing another configuration example of the second air blower.
- the second air blowing section has a fan 300 instead of the fans 210 and 220 .
- Fan 300 is installed in ceiling 950 of interior zone 942 .
- Fan 300 corresponds to one embodiment of a "third fan.”
- FIG. 10 schematically shows the air flow in the room 940 when the fans 230, 240, 300 are driven. It is assumed that the air conditioner 501 in the perimeter zone 941 is performing heating operation, and the air conditioner 601 in the interior zone 942 is performing cooling operation.
- the fan 230 is driven, so the cool air staying near the floor surface 970 is sucked into the underfloor 980 through the air inlet 270 (see arrow 71). Cool air sucked into the underfloor 980 is blown out toward the interior zone 942 by the fan 230 and proceeds in the direction of the arrow 72 . After that, since the fan 240 is driven, the cool air is sucked into the fan 240 (see arrow 73) and blown out from the outlet 280 toward the interior zone 942 (see arrow 74). Cool air blown into the interior zone 942 is diffused and reduces the temperature of the interior zone 942 .
- the fan 300 is also driven, so the warm air remaining near the ceiling 950 is sucked into the fan 300 (see arrow 75).
- the sucked warm air is blown out toward the perimeter zone 941 side by the fan 300 and advances in the direction of the arrow 76 .
- the warm air blown into the perimeter zone 941 is diffused and raises the temperature of the perimeter zone 941 .
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Abstract
Description
<空気調和システムの構成>
最初に、図1から図3を参照して、実施の形態1に係る空気調和システムの概略構成について説明する。実施の形態1に係る空気調和システムは、建物900の室内940の空気を調和するための空気調和システムに適用される。
図4を参照して、コントローラ110のハードウェア構成について説明する。図4は、コントローラ110のハードウェア構成の一例を示す模式図である。
図5を参照して、コントローラ110の機能構成について説明する。図5は、コントローラ110の機能構成の一例を示す図である。
次に、図2および図3を参照して、実施の形態1に係る空気調和システムの動作について説明する。
図7を参照して、実施の形態2に係る空気調和システムの概略構成について説明する。
図8を参照して、コントローラ110の機能構成について説明する。図8は、コントローラ110の機能構成の一例を示す図である。
判定部113は、時計部117からの時刻情報および通信IF部115を介して収集した気象情報(気象予報情報を含む)に基づいて、予め定められた条件が成立しているか否かを判定する。当該条件は、ナイトパージの実施可否を判定するための条件であり、空気調和システムのユーザが図示しない入力装置を用いて設定することができる。ユーザ入力によって設定された条件は、フラッシュメモリ14に格納される。
次に、図7を参照して、実施の形態2に係る空気調和システムの動作について説明する。なお、空気調和機501が暖房運転を実行し、かつ、空気調和機601が冷房運転を実行しているときの動作は、実施の形態1に係る空気調和システムの動作と基本的に同じであるため、説明は繰り返さない。なお、実施の形態2では、コントローラ110はさらに、開閉窓904を閉止する。
以下、本実施の形態に係る空気調和システムのその他の構成例について説明する。
上述した実施の形態では、第1送風部が床下に設置されたファン230,240を有する構成について例示したが、第1送風部は、ファン230,240のいずれか一方を有する構成としてもよい。この場合、1台のファンは、床面970に送られた空気を吸込口270から床下980に吸い込み、床下980の空気を吹出口280インテリアゾーン942に向けて吹き出すように構成される。
上述した実施の形態では、第2送風部が天井裏960に設置されたファン210,220を有する構成について例示したが、第2送風部は、ファン210,220のいずれか一方を有する構成としてもよい。この場合、1台のファンは、天井950に送られた空気を吸込口260から天井裏960に吸い込み、天井裏960の空気を吹出口250からペリメータゾーン941に向けて吹き出すように構成される。
Claims (7)
- 建物の室内のペリメータゾーンの空気を調和するための第1の空気調和機と、
前記室内のインテリアゾーンの空気を調和するための第2の空気調和機と、
前記ペリメータゾーンの床面に送られた空気を吸い込み、当該空気を前記インテリアゾーンに向けて吹き出すように構成された第1の送風部と、
前記インテリアゾーンの天井に送られた空気を吸い込み、当該空気を前記ペリメータゾーンに向けて吹き出すように構成された第2の送風部と、
コントローラとを備え、
前記コントローラは、前記第1の空気調和機が暖房運転時であり、かつ、前記第2の空気調和機が冷房運転時であるときに、前記第1の送風部および前記第2の送風部を駆動する、空気調和システム。 - 前記建物の外壁に設置され、開状態において前記ペリメータゾーンに外気を導入するように構成された開閉部材をさらに備え、
前記コントローラは、前記第1の空気調和機および前記第2の空気調和機の運転停止中であって、前記開閉部材が開状態であるときに、前記第1の送風部および前記第2の送風部を駆動する、請求項1に記載の空気調和システム。 - 前記コントローラは、前記第1の空気調和機および前記第2の空気調和機の運転停止中の所定の時間帯において、当該所定の時間帯の気象が予め定めた気象条件を満たしたときに、前記開閉部材を開放する、請求項2に記載の空気調和システム。
- 前記インテリアゾーンの前記床面には、床下の第1の空間に連通する第1の吹出口が形成され、
前記ペリメータゾーンの前記床面には、前記第1の空間に連通する第1の吸込口が形成され、
前記インテリアゾーンの前記天井には、天井裏の第2の空間に連通する第2の吸込口が形成され、
前記ペリメータゾーンの前記天井には、前記第2の空間に連通する第2の吹出口が形成され、
前記第1の送風部は、
前記第1の空間に設置され、前記床面に送られた空気を前記第1の吸込口から前記第1の空間に吸い込む第1のファンと、
前記第1の空間に設置され、前記第1の空間の空気を前記第1の吹出口から前記インテリアゾーンに向けて吹き出す第2のファンとを含み、
前記第2の送風部は、
前記第2の空間に設置され、前記天井に送られた空気を前記第2の吸込口から前記第2の空間に吸い込む第3のファンと、
前記第2の空間に設置され、前記第2の空間の空気を前記第2の吹出口から前記ペリメータゾーンに向けて吹き出す第4のファンとを含む、請求項1から3のいずれか1項に記載の空気調和システム。 - 前記第1から第4のファンの少なくとも1つは、横断流送風機である、請求項4に記載の空気調和システム。
- 前記インテリアゾーンの前記床面には、床下の第1の空間に連通する第1の吹出口が形成され、
前記ペリメータゾーンの前記床面には、前記第1の空間に連通する第1の吸込口が形成され、
前記第1の送風部は、
前記第1の空間に設置され、前記床面に送られた空気を前記第1の吸込口から前記第1の空間に吸い込む第1のファンと、
前記第1の空間に設置され、前記第1の空間の空気を前記第1の吹出口から前記インテリアゾーンに向けて吹き出す第2のファンとを含み、
前記第2の送風部は、前記インテリアゾーンの前記天井に設置され、前記天井に送られた空気を吸い込み、当該空気を前記ペリメータゾーンに向けて吹き出す第3のファンを含む、請求項1から3のいずれか1項に記載の空気調和システム。 - 前記インテリアゾーンの前記床面には、床下の第1の空間に連通する第1の吹出口が形成され、
前記ペリメータゾーンの前記床面には、前記第1の空間に連通する第1の吸込口が形成され、
前記インテリアゾーンの前記天井には、天井裏の第2の空間に連通する第2の吸込口が形成され、
前記ペリメータゾーンの前記天井には、前記第2の空間に連通する第2の吹出口が形成され、
前記第1の送風部は、前記第1の空間に設置され、前記床面に送られた空気を前記第1の吸込口から前記第1の空間に吸い込み、前記第1の空間の空気を前記第1の吹出口から前記インテリアゾーンに向けて吹き出す第1のファンを含み、
前記第2の送風部は、前記第2の空間に設置され、前記天井に送られた空気を前記第2の吸込口から前記第2の空間に吸い込み、前記第2の空間の空気を前記第2の吹出口から前記ペリメータゾーンに向けて吹き出す第2のファンを含む、請求項1から3のいずれか1項に記載の空気調和システム。
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JPH037821A (ja) * | 1989-06-05 | 1991-01-16 | Takasago Thermal Eng Co Ltd | 空調設備 |
JPH05180502A (ja) * | 1991-12-26 | 1993-07-23 | Hitachi Plant Eng & Constr Co Ltd | 空調装置 |
JPH0659726U (ja) * | 1993-01-21 | 1994-08-19 | 高砂熱学工業株式会社 | オフイス空間の温度分布緩和装置 |
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JP2018080905A (ja) * | 2016-11-10 | 2018-05-24 | 三協立山株式会社 | 温熱環境制御装置 |
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