WO2022264484A1 - Air conditioning system - Google Patents

Abstract

An air conditioning system (20) according to the present disclosure comprises: an air conditioning chamber (18); an air conditioner (13); a humidification device (16); a transference fan (3a, 3b) that transfers air of the air conditioning chamber (18) to spaces to be air-conditioned (2a, 2b, 2c, 2d); and a controller (50) that controls the humidification device (16). The controller (50) uses a first set absolute humidity, which is identified on the basis of a target humidity set for a space to be air-conditioned (2a, 2b, 2c, 2d), and a second set absolute humidity, which is identified on the basis of the wall surface temperatures of an outer wall constituting that space to be air-conditioned (2a, 2b, 2c, 2d), to cause, when the first set absolute humidity is lower than or equal to the second set absolute humidity, the humidification device (16) to execute first humidification control based on the first set absolute humidity, and to cause, when the first set absolute humidity is greater than the second set absolute humidity, the humidification device (16) to execute second humidification control based on the second set absolute humidity.

Description

air conditioning system

The present disclosure relates to an air conditioning system that allows multiple rooms in a house to be air-conditioned with a single air conditioner.

Conventionally, the residence is air-conditioned with a central air conditioner. In addition, with the increase in demand for energy-saving houses and the tightening of regulations, it is expected that the number of houses with high heat insulation and high airtightness will increase.

As such an air-conditioning system, the air conveyed from multiple spaces, etc. to the air-conditioned room is conditioned to a predetermined temperature and humidity in the air-conditioned room so that the temperature and humidity of the air in the multiple spaces (living room) become the target temperature and humidity. After that, there is known a central air-conditioning system that transports air to each of a plurality of spaces (for example, Patent Literature 1).

Japanese Patent Application Laid-Open No. 2020-63899

However, in the conventional central air-conditioning system, in the humidifying device that humidifies the air that is conveyed, the difference value between the set target humidity and the current humidity of the air-conditioned space is referred to, and whether the humidifying operation is performed or not. determine what For this reason, in a conventional central air-conditioning system, when the temperature of the space to be air-conditioned is higher than the temperature of the outside air, the air in the space to be air-conditioned is cooled on the window surfaces that come into contact with the outside air, thereby humidifying the air to the target humidity. In the process, the relative humidity of the air in the vicinity of the window surface and the like rises, and there is a problem that dew condensation is likely to occur on the window surface and the like.

An object of the present disclosure is to provide an air conditioning system capable of humidifying the air-conditioned space while suppressing the occurrence of dew condensation in the air-conditioned space.

An air-conditioning system according to the present disclosure includes an air-conditioned room configured to allow air to be introduced from the outside, an air conditioner installed in the air-conditioned room for controlling the temperature of the air in the air-conditioned room, and a A humidifying device for humidifying conditioned air, a transfer fan for transferring air in an air-conditioned room to an air-conditioned space independent of the air-conditioned room, and a controller for controlling the humidifying device. The controller uses a first set absolute humidity specified based on the target humidity set for the air-conditioned space and a second set absolute humidity specified based on the wall surface temperature of the outer wall constituting the air-conditioned space. , when the first set absolute humidity is equal to or less than the second set absolute humidity, causing the humidifying device to perform the first humidification control based on the first set absolute humidity, and the first set absolute humidity is equal to the second set absolute humidity If it is larger, the humidifier is caused to perform second humidification control based on the second set absolute humidity.

According to the present disclosure, it is possible to provide an air conditioning system capable of humidifying the air-conditioned space while suppressing the occurrence of dew condensation in the air-conditioned space.

FIG. 1 is a schematic connection diagram of an air conditioning system according to Embodiment 1 of the present disclosure. FIG. 2 is a schematic cross-sectional view of a humidifying device that constitutes the air conditioning system according to Embodiment 1. FIG. 3 is a schematic functional block diagram of the controller of the air conditioning system according to Embodiment 1. FIG. FIG. 4 is a flowchart showing basic processing operations of the controller according to the first embodiment. 5 is a flowchart showing the processing operation of the controller during humidification control according to Embodiment 1. FIG. FIG. 6 is a flow chart showing a processing operation for identifying the living room set humidity in the humidification control according to the first embodiment. FIG. 7 is a connection schematic diagram of an air conditioning system according to Embodiment 2 of the present disclosure. FIG. 8 is a flow chart showing a processing operation for identifying the room set humidity in humidification control according to the second embodiment.

An air-conditioning system according to the present disclosure includes an air-conditioned room configured to allow air to be introduced from the outside, an air conditioner installed in the air-conditioned room for controlling the temperature of the air in the air-conditioned room, and a A humidifying device for humidifying conditioned air, a transfer fan for transferring air in an air-conditioned room to an air-conditioned space independent of the air-conditioned room, and a controller for controlling the humidifying device. The controller uses a first set absolute humidity specified based on the target humidity set for the air-conditioned space and a second set absolute humidity specified based on the wall surface temperature of the outer wall constituting the air-conditioned space. , when the first set absolute humidity is equal to or less than the second set absolute humidity, causing the humidifying device to perform the first humidification control based on the first set absolute humidity, and the first set absolute humidity is equal to the second set absolute humidity If it is larger, the humidifier is controlled to execute second humidification control based on the second set absolute humidity.

According to such a configuration, the set humidity of the controller is the first set absolute humidity set for the air-conditioned space and the second set absolute humidity specified based on the wall surface temperature of the outer wall constituting the air-conditioned space. Set to low humidity. For this reason, when the wall surface temperature is low, the set absolute humidity specified based on the wall surface temperature is introduced while controlling the air-conditioned space so as to achieve the target absolute humidity set in normal times. As a result, the air conditioning system can perform humidification while suppressing the occurrence of dew condensation.

Further, in the air conditioning system according to the present disclosure, the controller sets the wall surface temperature based on the target temperature set for the air-conditioned space, the external temperature outside the air-conditioned space, and the insulation performance information of the outer wall. good too. By doing so, the wall surface temperature is set lower as the external temperature is lower or as the heat insulation performance of the outer wall is lower. That is, the lower the external temperature or the lower the insulation performance of the outer wall, the lower the second set absolute humidity is set. Therefore, the second set absolute humidity can be changed according to changes in the wall surface temperature, and the effect of suppressing dew condensation can be further enhanced when the wall surface temperature is low.

Also, in the air conditioning system according to the present disclosure, the second set absolute humidity may be set to the absolute humidity at which the wall surface temperature becomes the dew point. By doing so, the second set absolute humidity is not set to exceed the absolute humidity that causes dew condensation on the outer wall of the air-conditioned space. As a result, the outer wall of the space to be air-conditioned is not humidified by the humidifying device in excess of the absolute humidity that causes dew condensation, so that the effect of suppressing dew condensation on the outer wall can be further enhanced.

In addition, in the air conditioning system according to the present disclosure, the controller may use the surface temperature of the window section provided on the outer wall on the air-conditioned space side as the wall surface temperature. By doing so, it is possible to prevent humidification exceeding the absolute humidity that causes dew condensation by the humidifier at the window portion, which generally has low heat insulation performance and is most likely to cause dew condensation on the outer wall. Therefore, the effect of suppressing dew condensation can be further enhanced.

Also, in the air conditioning system according to the present disclosure, the air-conditioned space is one of the plurality of air-conditioned spaces. When the controller determines that the second humidification control by the humidifying device is to be executed for at least one air-conditioned space among the plurality of air-conditioned spaces, the plurality of air-conditioned spaces other than the at least one air-conditioned space You may make it perform the 2nd humidification control by a humidification apparatus with respect to the to-be-air-conditioned space of the inside. By doing so, it is possible to prevent dew condensation from occurring in the air-conditioned space where dew condensation is most likely to occur, that is, to prevent dew condensation from occurring in all the air-conditioned spaces. Therefore, the effect of suppressing dew condensation can be further enhanced.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

(Embodiment 1)
First, referring to FIG. 1, an air conditioning system 20 according to Embodiment 1 of the present disclosure will be described. FIG. 1 is a schematic connection diagram of an air conditioning system 20 according to Embodiment 1 of the present disclosure.

The air conditioning system 20 includes a plurality of carrier fans 3 ( carrier fans 3a and 3b), a heat exchange fan 4, a plurality of living room dampers 5 ( living room dampers 5a, 5b, 5c and 5d), and a plurality of circulation ports 6. ( circulation ports 6a, 6b, 6c, 6d), a plurality of living room air outlets 7 (living room air outlets 7a, 7b, 7c, 7d), a plurality of living room air supply ports 8 (living room air supply ports 8a, 8b, 8c , 8d), a living room temperature sensor 11 (living room temperature sensors 11a, 11b, 11c, 11d), a living room humidity sensor 12 (living room humidity sensors 12a, 12b, 12c, 12d), and an air conditioner (air conditioner) 13 , a suction temperature sensor 14, an external temperature sensor 15 ( external temperature sensors 15a, 15b, 15c, 15d), a humidifying device 16, a dust collection filter 17, and a controller 50 (corresponding to an air conditioning controller). Configured.

The air conditioning system 20 is installed in a general residence 1, which is an example of a building. The general house 1 has a plurality of (four in this embodiment) living rooms 2 ( living rooms 2 a, 2 b, 2 c, 2 d) and at least one air-conditioned room 18 independent of the living rooms 2 . Here, the general house 1 (house) is a house provided as a place for residents to live privately, and the living room 2 includes a living room, a dining room, a bedroom, a private room, a children's room, and the like. Also, the living room provided by the air conditioning system 20 may include a toilet, a bathroom, a washroom, a dressing room, or the like.

The living room 2 constitutes a closed space with walls including outer walls 9 ( outer walls 9a, 9b, 9c, 9d) in the general house 1. The outer wall 9 is provided with a door (not shown) serving as an entrance and a window (not shown) such as window glass.

More specifically, the living room 2a constitutes one closed space on the first floor of the general house 1 with wall surfaces including the outer wall 9a. Further, the living room 2b constitutes one closed space on the first floor of the general house 1 with wall surfaces including the outer wall 9b. In addition, living room 2c constitutes one closed space on the second floor of general house 1 with wall surfaces including outer wall 9c. Further, the living room 2d constitutes one closed space on the second floor of the general house 1 with wall surfaces including the outer wall 9d.

The living room 2a is provided with a circulation port 6a, a living room exhaust port 7a, a living room air supply port 8a, a living room temperature sensor 11a, a living room humidity sensor 12a, a controller 50, and an input/output terminal (not shown). In addition, a circulation port 6b, a living room exhaust port 7b, a living room air supply port 8b, a living room temperature sensor 11b, and a living room humidity sensor 12b are installed in the living room 2b. The living room 2c is provided with a circulation port 6c, a living room exhaust port 7c, a living room air supply port 8c, a living room temperature sensor 11c, and a living room humidity sensor 12c. In addition, a circulation port 6d, a living room exhaust port 7d, a living room air supply port 8d, a living room temperature sensor 11d, and a living room humidity sensor 12d are installed in the living room 2d.

The air-conditioned room 18 includes a carrier fan 3a, a carrier fan 3b, a living room damper 5a, a living room damper 5b, a living room damper 5c, a living room damper 5d, an air conditioner 13, a suction temperature sensor 14, a humidifier 16, and a collector. A dust filter 17 is installed. More specifically, the air conditioner 13, the dust collection filter 17, the suction temperature sensor 14, the humidifier 16, the carrier fan 3 ( carrier fans 3a and 3b), The living room dampers 5 (living room dampers 5a to 5d) are arranged in order.

Air is introduced into the air-conditioned room 18 from the outside of the air-conditioned room 18 . In the air conditioning room 18, the air (indoor air) conveyed from each living room 2 through the circulation port 6 and the outside air (outdoor air) taken in and heat-exchanged by the heat exchange fan 4 are mixed. be. The temperature and humidity of the air in the air-conditioned room 18 are controlled by the air conditioner 13 and the humidifier 16 provided in the air-conditioned room 18 , that is, the air is conditioned to generate air to be conveyed to the living room 2 .

The air that has been air-conditioned in the air-conditioned room 18 is transported to each living room 2 by the transport fan 3 . Here, the air-conditioned room 18 means a space with a certain size in which the air conditioner 13, the intake temperature sensor 14, the humidifier 16, the dust collection filter 17, etc. can be arranged and the air conditioning of each living room 2 can be controlled. However, it is not intended as a living space and does not basically mean a room in which a resident stays.

The air in each living room 2 is conveyed to the air conditioning room 18 through the circulation port 6, and after heat exchange through the heat exchange air fan 4 through the living room exhaust port 7, is exhausted to the outside. The air conditioning system 20 exhausts inside air (indoor air) from each living room 2 with the heat exchange air fan 4 and takes in outside air (outdoor air) indoors, thereby performing ventilation of the first type ventilation method. The ventilation air volume of the heat exchange fan 4 can be set in a plurality of stages, and the ventilation air volume is set so as to satisfy the required ventilation volume stipulated by law.

The heat exchange air fan 4 has an internal air supply fan and an exhaust fan (not shown). Ventilate while exchanging heat with At this time, the heat exchange fan 4 conveys the heat-exchanged outside air to the air conditioning room 18 .

The carrier fan 3 is provided on the wall surface (bottom side wall surface) of the air conditioning room 18 . The air in the air conditioning room 18 is conveyed to the living room 2 from the living room air supply port 8 through the conveying duct by the conveying fan 3 . More specifically, the air in the air conditioning room 18 is conveyed to the living room 2a and the living room 2b located on the first floor of the general house 1 by the carrier fan 3a, and is also conveyed to the living room located on the second floor of the general house 1 by the carrier fan 3b. 2c and living room 2d, respectively. In addition, the transport ducts connected to the living room air supply ports 8 of the living rooms 2 are provided independently.

The living room damper 5 adjusts the amount of air blown to the corresponding living room 2 by adjusting the opening degree of the living room damper 5 when conveying the air from the carrier fan 3 to the corresponding living room 2 . More specifically, the living room damper 5a adjusts the amount of air blown to the living room 2a located on the first floor. Further, the living room damper 5b adjusts the amount of air blown to the living room 2b located on the first floor. Further, the living room damper 5c adjusts the amount of air blown to the living room 2c located on the second floor. Further, the living room damper 5d adjusts the amount of air blown to the living room 2d located on the second floor.

A part of the air in each living room 2 (living rooms 2a to 2d) is conveyed to the air conditioning room 18 via the circulation duct by the corresponding circulation port 6 (circulation port 6a to 6d). Here, the air conveyed by the circulation port 6 has an air volume (supply air volume) conveyed from the air conditioning room 18 to each living room 2 by the conveying fan 3, and is exhausted to the outside from the living room exhaust port 7 by the heat exchange air fan 4. The difference in air volume (exhaust air volume) is naturally conveyed to the air conditioning room 18 as circulating air. The circulation ducts connecting the air conditioning room 18 and each living room 2 may be provided independently, but a plurality of branch ducts that are part of the circulation ducts may be joined from the middle to form one circulation duct. You may make it connect to the air conditioning room 18 after integrating.

Each circulation port 6 (circulation ports 6a to 6d) is an opening for conveying indoor air from the corresponding living room 2 (living room 2a to 2d) to the air-conditioned room 18, as described above.

Each living room air outlet 7 (living room air outlet 7a to 7d) is an opening for conveying indoor air from the corresponding living room 2 (living room 2a to 2d) to the heat exchange fan 4, as described above.

Each living room air supply port 8 (living room air supply port 8a to 8d) is an opening for conveying the air in the air conditioned room 18 from the air conditioned room 18 to the corresponding living room 2 (living room 2a to 2d) as described above. .

The living room temperature sensors 11 (living room temperature sensors 11 a to 11 d) are sensors that acquire the temperature (liquid room temperature) of each corresponding living room 2 (living room 2 a to 2 d) and transmit it to the controller 50 .

The living room humidity sensors 12 (living room humidity sensors 12 a to 12 d) are sensors that acquire the humidity (indoor humidity) of each corresponding living room 2 (living rooms 2 a to 2 d) and transmit it to the controller 50 .

The air conditioner 13 corresponds to an air conditioner and controls the air conditioning of the air conditioning room 18 . The air conditioner 13 cools or heats the air in the air-conditioned room 18 so that the temperature of the air in the air-conditioned room 18 reaches a set temperature (target temperature for the air-conditioned room). Here, the set temperature is set to a temperature based on the result of calculating the necessary amount of heat from the temperature difference between the target temperature (target room temperature) set by the user and the room temperature. In the present embodiment, the set temperature is set to at least a temperature higher than the target temperature in order to quickly control the temperature of the air in each living room 2 to the target temperature.

The intake temperature sensor 14 is a sensor that acquires the temperature of the air temperature-controlled by the air conditioner 13 in the air-conditioned room 18 and transmits it to the controller 50 . More specifically, the intake temperature sensor 14 is installed downstream of the dust collection filter 17 in the air-conditioned room 18 , acquires the temperature of the air sucked into the humidifier 16 , and transmits it to the controller 50 .

The external temperature sensors 15 (external temperature sensors 15 a to 15 d) are sensors that acquire the temperature of the air outside the corresponding living room 2 and transmit it to the controller 50 . The external temperature sensor 15 is installed near the outside of the outer wall 9 forming the corresponding living room 2 , acquires the temperature of the air near the outside of the corresponding living room 2 , and transmits it to the controller 50 .

More specifically, the external temperature sensor 15a is installed near the outside of the outer wall 9a that constitutes the living room 2a, acquires the temperature of the air near the outside of the living room 2a, and transmits it to the controller 50. The external temperature sensor 15 b is installed near the outside of the outer wall 9 b that constitutes the living room 2 b , obtains the temperature of the air near the outside of the living room 2 b , and transmits it to the controller 50 . The external temperature sensor 15c is installed near the outside of the outer wall 9c that constitutes the living room 2c, acquires the temperature of the air near the outside of the living room 2c, and transmits it to the controller 50. FIG. The external temperature sensor 15 d is installed near the outside of the outer wall 9 d that constitutes the living room 2 d , obtains the temperature of the air near the outside of the living room 2 d, and transmits it to the controller 50 . Here, the outside of the outer wall 9 constituting the living room 2 where the outside temperature sensor 15 is installed is the outside of the wall surface where the temperature of the air in the vicinity tends to be the lowest. identified.

The humidifier 16 is positioned downstream of the air conditioner 13 (and the dust collection filter 17) in the air conditioning room 18, and the humidity of the air in each room 2 (room humidity) is equal to the set humidity (room set humidity). When the humidity is lower than the humidity, the air in the air conditioning room 18 is humidified so that the humidity becomes the set humidity. Also, although the humidity in the present embodiment is indicated by relative humidity, it may be treated as absolute humidity by a predetermined conversion process. In this case, it is preferable to treat the entire humidity handled by the air conditioning system 20, including the humidity of the living room 2, as absolute humidity. The details of the humidifier will be described later.

The dust collection filter 17 is a dust collection filter that collects particles floating in the air introduced into the air-conditioned room 18 . The dust collection filter 17 cleans the air supplied indoors by the transport fan 3 by collecting particles contained in the air transported into the air-conditioned room 18 through the circulation port 6 . Here, the dust collection filter 17 is installed so as to close the air flow path in the region between the air conditioner 13 and the humidifier 16 .

The controller 50 is a controller that controls the air conditioning system 20 as a whole. The controller 50 communicates with each of the heat exchange fan 4, the carrier fan 3, the damper 5 for the living room, the living room temperature sensor 11, the living room humidity sensor 12, the air conditioner 13, the suction temperature sensor 14, the external temperature sensor 15, and the humidifying device 16. , are communicably connected by wireless communication.

In addition, the controller 50 controls the room temperature and humidity of each living room 2 acquired by the living room temperature sensor 11 and the living room humidity sensor 12, and the set temperature (room set temperature) and set humidity set for each of the living rooms 2a to 2d. (room set humidity), the temperature of the air in the air conditioning room 18 obtained from the intake temperature sensor 14, and the temperature of the outside air in the living room 2 obtained from the outside temperature sensor 15, the air as an air conditioner The conditioner 13, the humidifier 16, the air volume of the carrier fan 3, and the opening degree of the room damper 5 are controlled. Note that the air volume of the transport fan 3 may be controlled individually for each fan.

As a result, the air conditioned in the air-conditioned room 18 is conveyed to each living room 2 at the air volume set in each conveying fan 3 and each living room damper 5 . Therefore, the living room temperature and the living room humidity of each living room 2 are controlled to be the living room set temperature and the living room set humidity.

Here, the controller 50 includes the heat exchange fan 4, the transfer fan 3, the damper 5 for the living room, the living room temperature sensor 11, the living room humidity sensor 12, the air conditioner 13, the suction temperature sensor 14, the external temperature sensor 15, and the humidifying device 16. are connected by wireless communication, complicated wiring work can be eliminated. However, all of them, or the controller 50 and some of them may be configured to be communicable by wired communication.

Next, the configuration of the humidifying device 16 will be described with reference to FIG. FIG. 2 is a schematic cross-sectional view of the humidifier 16 that constitutes the air conditioning system 20. As shown in FIG.

The humidifier 16 is located downstream of the air conditioner 13 in the air-conditioned room 18, and is a device for humidifying the air in the air-conditioned room 18 by centrifugal water crushing. In other words, the humidifying device 16 is a device configured to centrifugally crush the water pumped up by the rotation of the water pumping pipe 37 to make it finer, include it in the air whose temperature is controlled by the air conditioner 13, and release it. be.

The humidifier 16 includes an intake port 31 for sucking air in the air-conditioned room 18, an air outlet 32 for blowing out the humidified air into the air-conditioned room 18, and an air passage provided between the air inlet 31 and the air outlet 32. , and a liquid atomization chamber 33 provided in the air passage.

The suction port 31 is provided on the upper surface of the housing that constitutes the outer frame of the humidifying device 16 . The outlet 32 is provided on the side surface of the housing. The liquid atomization chamber 33 is a main part of the humidifier 16, and is where water is atomized by a centrifugal water crushing method.

Specifically, the humidifying device 16 includes a rotating motor 34, a rotating shaft 35 rotated by the rotating motor 34, a centrifugal fan 36, a cylindrical water pumping pipe 37, a water reservoir 40, a first eliminator 41, a second eliminator 42;

The pumping pipe 37 is fixed to the rotating shaft 35 inside the liquid atomization chamber 33, and pumps up water from a circular pumping port provided vertically downward while rotating according to the rotation of the rotating shaft 35. More specifically, the pumping pipe 37 has an inverted conical hollow structure, has a circular pumping opening vertically downward, and is located above the pumping pipe 37 at the center of the top surface of the inverted cone. , a rotating shaft 35 arranged in the vertical direction is fixed. The rotating shaft 35 is connected to the rotating motor 34 positioned vertically above the liquid atomization chamber 33, so that the rotating motion of the rotating motor 34 is transmitted to the pumping pipe 37 through the rotating shaft 35, and the pumping pipe 37 rotates. do.

The pumping pipe 37 is provided with a plurality of rotating plates 38 formed so as to protrude outward from the outer surface of the pumping pipe 37 on the top surface side of the inverted conical shape. The plurality of rotating plates 38 are formed to protrude outward from the outer surface of the pumping pipe 37 with a predetermined interval in the axial direction of the rotating shaft 35 between the vertically adjacent rotating plates 38 . Since the rotating plate 38 rotates together with the pumping pipe 37 , it is preferable that the rotating plate 38 has a horizontal disk shape coaxial with the rotating shaft 35 . The number of rotating plates 38 is appropriately set according to the target performance or the dimensions of the pumping pipe 37 .

Also, the wall surface of the pumping pipe 37 is provided with a plurality of openings 39 penetrating through the wall surface of the pumping pipe 37 . Each of the plurality of openings 39 is provided at a position where the inside of the pumping pipe 37 communicates with the upper surface of the rotating plate 38 formed to protrude outward from the outer surface of the pumping pipe 37 .

The centrifugal fan 36 is arranged vertically above the pumping pipe 37 and is a fan for drawing air from the air conditioning room 18 into the apparatus. The centrifugal fan 36 is fixed to the rotating shaft 35 like the pumping pipe 37 , and rotates with the rotation of the rotating shaft 35 to introduce air into the liquid atomization chamber 33 .

The water storage unit 40 stores the water pumped by the pumping pipe 37 from the pumping port vertically below the pumping pipe 37 . The depth of the reservoir 40 is designed such that a portion of the lower part of the pumping pipe 37, for example, about one-third to one-hundredth of the height of the cone of the pumping pipe 37, is submerged. . This depth can be designed according to the required pumping capacity. Moreover, the bottom surface of the water storage part 40 is formed in a mortar shape toward the pumping port. Water is supplied to the water storage unit 40 by a water supply unit (not shown).

The first eliminator 41 is a porous body through which air can flow, is provided on the side of the liquid atomization chamber 33 (periphery in the centrifugal direction), and is arranged so that air can flow in the centrifugal direction. In the first eliminator 41 , the water droplets emitted from the opening 39 of the pumping pipe 37 collide with each other to make the water droplets finer and collect the water droplets contained in the air passing through the liquid atomization chamber 33 . do. As a result, the air flowing through the humidifier 16 contains vaporized water.

The second eliminator 42 is provided on the downstream side of the first eliminator 41 and arranged so that air flows vertically upward. The second eliminator 42 is also a porous body through which air can flow, and collects droplets of water contained in the air passing through the second eliminator 42 by colliding with the air passing through the first eliminator 41 . do. As a result, water droplets having a large particle size can be collected more accurately by collecting the miniaturized water droplets doubly by the two eliminators.

Next, with reference to FIG. 2, the operating principle of humidification (miniaturization of water) in the humidifier 16 will be described. In FIG. 2, the flow of air and the flow of water in the humidifier 16 are indicated by solid-line arrows and broken-line arrows, respectively.

First, when the operation of the humidifier 16 is started, the rotary motor 34 rotates the rotating shaft 35 at the first rotation speed R1, and the centrifugal fan 36 starts sucking air from the air-conditioning room 18 through the air inlet 31 . Then, the pumping pipe 37 rotates according to the rotation of the rotary shaft 35 at the first rotation speed R1. 2, the centrifugal force generated by the rotation of the water pump 37 causes the water stored in the water reservoir 40 to be pumped up by the water pump 37. As shown in FIG. Here, the first rotation speed R1 of the rotary motor 11 (water pumping pipe 37) is set between 600 rpm and 3000 rpm, for example, depending on the amount of blown air and the amount of humidification of the air. Since the pumping pipe 37 has an inverted conical hollow structure, the water pumped up by the rotation is pumped up along the inner wall of the pumping pipe 37 . The pumped water is discharged in the centrifugal direction through the opening 39 of the pumping pipe 37 along the rotating plate 38 and scatters as water droplets.

Water droplets scattered from the rotating plate 38 fly in the space (liquid atomization chamber 33) surrounded by the first eliminator 41, collide with the first eliminator 41, and are atomized. On the other hand, the air passing through the liquid atomization chamber 33, like the air flow indicated by the solid line arrows in FIG. Move to As the air flows through the air passage from the first eliminator 41 to the second eliminator 42, a vortex of the air current is generated and the water and the air are mixed. The water-laden air then passes through the second eliminator 42 . As a result, the humidifying device 16 can humidify the air sucked from the suction port 31 and blow the humidified air from the blowing port 32 .

The liquid to be atomized may be other than water, and may be, for example, a liquid such as hypochlorous acid water with sterilizing or deodorizing properties.

Next, the controller 50 in the air conditioning system 20 will be described with reference to FIG. FIG. 5 is a functional block diagram of the controller 50 in the air conditioning system 20. As shown in FIG.

The controller 50 is installed on the wall surface of the main room 2a such as the living room of the general house 1, and controls the operation of the air conditioner 13, the carrier fan 3, the room damper 5, and the humidifier 16. Further, the controller 50 is installed at a height from the floor of the living room 2a to about the height of a person's face in order to facilitate the operation by the user. The controller 50 has, for example, a rectangular shape, and includes a display panel 50j in the front center area of the main body and an operation panel 50a in the right area of the display panel 50j.

The display panel 50j is a liquid crystal monitor or the like, and the operation status of the air conditioner 13, the conveying fan 3, the room damper 5, the humidifier 16, the living room set temperature, the living room set humidity, and the current living room temperature of the living room 2 are displayed on the display panel 50j. , and room humidity, etc. are displayed.

The operation panel 50a includes button switches and the like for the user to input the set room temperature and set humidity for the living room 2 by the user.

The controller 50 houses a control unit having a CPU (Central Processing Unit) of a computer, a memory, etc. inside the main body.

Specifically, the control unit of the controller 50 includes an input unit 50b, a processing unit 50c, a storage unit 50d, a clock unit 50e, a damper opening determination unit 50f, an air volume determination unit 50g, and a set temperature determination unit. 50h, a rotational speed identification unit 50k, and an output unit 50i.

The input unit 50b receives information (first information) related to the room temperature of the living room 2 transmitted from the living room temperature sensor 11, information (second information) related to the indoor humidity of the living room 2 transmitted from the living room humidity sensor 12, Information (third information) about the suction temperature of the humidifier 16 transmitted from the temperature sensor 14, information (fourth information) about the external temperature of the room 2 transmitted from the external temperature sensor 15, and transmitted from the operation panel 50a and information (fifth information) on user input settings. The input unit 50b outputs the received first to fifth information to the processing unit 50c.

The storage unit 50d stores data referenced or updated by the processing unit 50c. For example, the storage unit 50 d stores an algorithm for determining the operation modes of the air conditioner 13 , humidifier 16 and carrier fan 3 . The storage unit 50d also stores the first to fifth information received by the input unit 50b in chronological order. Then, the storage unit 50d outputs the stored data (stored data) to the processing unit 50c in response to a request from the processing unit 50c.

The timekeeping unit 50e is used to measure time as necessary in the program executed by the processing unit 50c. Then, the timer 50e outputs data indicating the current time (time data) to the processor 50c.

The processing unit 50c receives the first to fifth information from the input unit 50b, the stored data from the storage unit 50d, and the time data from the clock unit 50e. The processing unit 50c specifies the required temperature control amount and the required humidification amount required for the living room 2 at regular time intervals (for example, 5 minutes) using the received information. Note that the required temperature control amount is also referred to as the required air conditioning amount.

More specifically, the processing unit 50c updates the living room temperature settings stored in the storage unit 50d and the living room temperature sensors 11a installed in the living rooms 2a to 2d at regular time intervals based on the time data acquired from the clocking unit 50e. Based on the temperature difference between the living room temperatures detected in the rooms 2a to 11d, the required temperature control amounts required individually for each of the living rooms 2a to 2d are specified. The processing unit 50c detects the room set humidity stored in the storage unit 50d and the room humidity sensors 12a to 12d installed in the living rooms 2a to 2d at regular time intervals based on the time data acquired from the clocking unit 50e. Based on the humidity difference between the living room humidity and the living room humidity, the required amount of humidification required individually for each of the living rooms 2a to 2d is specified. In addition, the processing unit 50c updates the display of the display panel 50j through the output unit 50i according to changes in the information displayed on the display panel 50j.

The damper opening degree specifying unit 50f acquires information on the required temperature control amount from the processing unit 50c, and specifies the opening degrees of the room dampers 5a to 5d based on the ratio of the required temperature control amounts for each of the rooms 2a to 2d. Then, the damper opening degree identifying section 50f outputs information (opening degree information) on the opening degrees of the identified room dampers 5a to 5d to the processing section 50c.

The air volume specifying unit 50g acquires information on the required temperature control amount from the processing unit 50c, and specifies the air volume blown out from the air conditioner 13 based on the average value or total value of the required temperature control amounts. Further, the air volume determination unit 50g specifies the air volume of the carrier fan 3 (the carrier fan 3a and the carrier fan 3b) based on the average value or the total value of the required temperature control amounts of the first floor and the second floor. Then, the air volume identification unit 50g outputs information (blown air volume information) on the air volume blown by the specified air conditioner 13 and information on the air volume blown by the specified carrier fan 3 (air volume information) to the processing unit 50c.

The set temperature specifying unit 50h acquires information about the required temperature control amount from the processing unit 50c, and specifies the set temperature of the air conditioner 13 based on the average value or the total value of the required temperature control amount. Then, the set temperature identification unit 50h outputs information (air conditioner set temperature information) regarding the identified set temperature of the air conditioner 13 to the processing unit 50c.

The rotation speed specifying unit 50k acquires information on the required humidification amount from the processing unit 50c and information on the suction temperature of the humidifier 16, and specifies the rotation speed of the pumping pipe 37 (rotating motor 34) of the humidifier 16. Then, the rotation speed specifying unit 50k outputs information (rotation speed information) on the specified rotation speed of the pumping pipe 37 to the processing unit 50c.

The processing unit 50c receives opening degree information from the damper opening degree identifying unit 50f, blown air volume information and blown air volume information from the air volume identifying unit 50g, air conditioner set temperature information from the set temperature identifying unit 50h, and rotational speed identification. It receives rotation speed information from the unit 50k. The processing unit 50c uses the received information to operate the air conditioner 13, the carrier fan 3 (the carrier fan 3a and the carrier fan 3b), the room dampers 5 (the room dampers 5a to 5d), and the humidifier 16. Identifies control information about an operation. Then, the processing unit 50c outputs the specified control information to the output unit 50i.

The output unit 50i outputs the control information received from the processing unit 50c to the air conditioner 13, the carrier fan 3 (the carrier fan 3a and the carrier fan 3b), the living room dampers 5 (the living room dampers 5a to 5d), and the humidifier 16. , respectively.

Then, according to the control information output from the output unit 50i, the air conditioner 13 performs the air conditioning operation with the air conditioning set temperature and blowing air volume based on the control information. In addition, the carrier fan 3 (the carrier fan 3a, the carrier fan 3b) executes the air blowing operation with each blowing amount based on the control information output from the output unit 50i. In addition, the living room dampers 5 (the living room dampers 5a to 5d) perform air volume adjustment operations at respective opening degrees based on the control information output from the output unit 50i. Further, the humidifying device 16 performs the humidifying operation at the rotation speed based on the control information according to the control information output from the output unit 50i.

As described above, the controller 50 causes the air conditioner 13, the carrier fan 3, the living room damper 5, and the humidifier 16 to operate.

Next, the basic processing operation of the controller 50 will be described with reference to FIG. FIG. 4 is a flow chart showing the basic processing operation of the controller 50. As shown in FIG.

<Basic processing operation>
First, the controller 50 performs a termination determination of the air conditioning system 20 (step S01). When it is determined that the power supply of the air conditioning system 20 is off (or an instruction to stop the operation of the air conditioning system 20 is input from the operation panel 50a) as a result of the termination determination of the air conditioning system 20 (YES in step S01), the operation of the air conditioning system 20 is resumed. finish. On the other hand, when it is determined that the air conditioning system 20 is powered on as a result of the termination determination of the air conditioning system 20 (NO in step S01), it is determined whether time has passed (step S02). When the controller 50 determines that a certain period of time (for example, 10 minutes) has not passed since the previous process (NO in step S02), the process returns to step S01. On the other hand, if the controller 50 determines that a certain period of time has elapsed since the previous process as a result of determining the passage of time (YES in step S02), the process proceeds to step S03, where the living room damper 5, the air conditioner 13, and the carrier fan 3 output specification processing is performed.

Next, the controller 50 starts a loop for the number of living rooms 2 that are air-conditioned spaces (step S03). The controller 50 then calculates the required temperature control amounts for each of the living rooms 2a to 2d (step S04). The controller 50 also specifies the opening degrees of the living room dampers 5a to 5d corresponding to the living rooms 2a to 2d, respectively (step S05). Then, the controller 50 ends the loop when the calculation of the required temperature control amounts for all the rooms 2 and the specification of the opening degrees of the room dampers 5 are completed (step S06).

The processing in the loop of steps S03 to S06 will be explained in more detail using the living room 2a as an example.

In step S04, the controller 50 specifies the required temperature control amount for the living room 2a as the temperature difference between the living room temperature acquired from the living room temperature sensor 11a and the living room set temperature set for the living room 2a. More specifically, the required temperature control amount is specified based on the value obtained by subtracting the living room temperature from the living room set temperature during the heating operation. Further, the required temperature control amount is specified based on the value obtained by subtracting the living room set temperature from the living room temperature during cooling operation. This means that the greater the positive value of the required temperature control amount, the more air conditioning is required in the living room 2a.

In step S05, the degree of opening of the damper 5a for the living room corresponding to the living room 2a is specified according to the required temperature control amount of the living room 2a. In the present embodiment, when the required temperature control amount is 2°C or higher, the degree of opening is "100%", when it is 1°C or more and less than 2°C, it is "60%", and when it is 0°C or more and less than 1°C. is set to "45%" for opening, "30%" for -1°C or more and less than 0°C, and "10%" for less than -1°C. By setting the remaining rooms 2 (rooms 2b to 2d) in this way, the opening degrees of the room dampers 5a to 5d are adjusted according to the ratios of the required temperature control amounts of the rooms 2a to 2d. Then, the conditioned air is blown to the living room (living room 2) with a higher required temperature control amount, and the temperature control for each living room 2 becomes possible.

Next, the controller 50 calculates the required temperature control amount for the entire general house 1 based on the required temperature control amount for each living room 2 (step S07). In the present embodiment, the required temperature control amount of the general house 1 is calculated based on the average value of the required temperature control amounts of the living rooms 2 .

Subsequently, the controller 50 specifies the air conditioning set temperature and blowing air volume of the air conditioner 13 according to the calculated required temperature control amount of the general house 1 (step S08). More specifically, the controller 50 increases the air conditioning set temperature as the required temperature control amount increases during heating operation, and decreases the air conditioning set temperature as the required temperature control amount increases during cooling operation. For example, when the required temperature control amount is less than 0°C, the controller 50 sets the air conditioning setting temperature to the same value as the room setting temperature of the living room 2, and when the required temperature control amount is 0°C or more and less than 1°C, the air conditioning setting The temperature of the living room 2 is made higher by 1 degree during the heating operation and lower by 1 degree during the cooling operation than the living room set temperature of the living room 2.例文帳に追加Further, when the required temperature control amount is 1° C. or more, the controller 50 sets the air conditioning set temperature of the living room 2 to be 2 degrees higher than the living room set temperature during the heating operation and 2 degrees lower during the cooling operation. As a result, the air conditioner 13 operates at a higher output as the required temperature control amount increases, and the living room temperature of the living room 2 is controlled to the living room set temperature more quickly.

Further, the controller 50 controls the amount of air blown from the air conditioner 13 to be greater as the required temperature control amount is higher. In the present embodiment, when the required temperature control amount is less than 0° C., the blown air volume is 500 m ³ /h, and when the required temperature control amount is 0° C. or more and less than 1° C., the blown air volume is 700 m ³ /h. , when the required temperature control amount is 2° C. or more, the blown air volume is set to 1200 m ³ /h.

Subsequently, the controller 50 determines the total air volume of the carrier fan 3 to be equal to or slightly larger than the air volume blown from the air conditioner 13 (step S09). In other words, the controller 50 specifies that the air volume difference between the total air volume of the carrier fan 3 and the air volume blown out from the air conditioner 13 is equal to or less than the reference air volume. Thereby, the controller 50 suppresses the power consumption of the transfer fan 3 .

Next, the controller 50 calculates the required temperature control amounts for each of the first and second floors (step S10). In the present embodiment, the average value of the required temperature control amounts of the living rooms 2 on the first and second floors is used as the required temperature control amount for that floor.

Subsequently, based on the required temperature control amount calculated in step S10, the blowing amount of each of the conveying fans 3 is determined (step S11). The controller 50 specifies the air volume of each of the carrier fans 3 on the first floor and the second floor so as to provide an air volume ratio corresponding to the ratio of the required temperature control amounts. Specifically, the controller 50 determines that the required temperature control amount for the second floor is 1° C., the required temperature control amount for the first floor is 2° C., and the total air volume of the transfer fan 3 specified in step S09 is 1200 m ³ /h. In this case, the air volume of the carrier fan 3a on the second floor is specified to be 400 m ³ /h, and the air volume of the carrier fan 3b on the first floor is specified to be 800 m ³ /h so that the air volume ratio between the carrier fans 3 is 1:2. As a result, even if there is a difference in the required temperature control amount between the first floor and the second floor, by making a difference in the amount of air blown by the transfer fan 3, the amount of heat transferred is different, and the required temperature control is achieved on both the first and second floors. It is possible to convey the amount of heat commensurate with the amount.

Subsequently, the controller 50 starts humidification control (step S12) and causes the humidification device 16 to perform the humidification processing operation.

Next, referring to FIG. 5, the humidification processing operation of the controller 50 when controlling the humidifier 16 will be described as the humidification control in step S12. FIG. 5 is a flow chart showing the processing operation of the controller 50 during humidification control.

<Humidification processing operation>
When the humidification control is started, as shown in FIG. 5, the controller 50 first specifies the living room set humidity Xt as the humidification target value (step S21). Here, although a method for specifying the living room set humidity Xt will be described later with reference to FIG. 6, the living room set humidity Xt is set to either the first set absolute humidity Xt1 or the second set absolute humidity Xt2. After that, a loop for the number of living rooms 2, which are spaces to be air-conditioned, is started (step S22). Then, the controller 50 calculates the required humidification amount for each of the living rooms 2a to 2d (step S23). Then, the controller 50 ends the loop when the calculation of the required humidification amounts for all the living rooms 2 is completed (step S24).

The processing in the loop of steps S22 to S24 will be explained in more detail using the living room 2a as an example.

In step S23, the controller 50 specifies the required humidification amount of the living room 2a as the humidity difference between the living room humidity acquired from the living room humidity sensor 12a and the living room set humidity Xt set for the living room 2a. Specifically, the living room set humidity Xt and the living room humidity are each converted into absolute humidity, and the required humidification amount is obtained by subtracting the living room absolute humidity corresponding to the living room humidity from the living room set absolute humidity corresponding to the living room set humidity Xt. . This means that the larger the positive value of the required humidification amount, the more humidification is required in the living room 2a.

Next, the controller 50 calculates the required humidification amount for the entire general house 1 based on the required humidification amount for each living room 2 (step S25). In this embodiment, the required humidification amount of the general house 1 is calculated based on the average value of the required humidification amounts of the living rooms 2 .

Next, the controller 50 determines whether or not the required humidification amount is a positive value as the operation determination of the humidifier 16 (step S26). Specifically, when it is determined that the required humidification amount of the general house 1 is a positive value (YES in step S26), the operation of the humidifier 16 is performed, and the process proceeds to step S27. On the other hand, when it is determined that the required humidification amount of the general house 1 is "0" or a negative value (NO in step S26), the number of rotations of the pumping pipe 37 is set to "0" and the humidifier 16 is not operated. Then (step S28), the humidification control ends.

Subsequently, in step S27, the controller 50 requests the water pump 37 according to the calculated required humidification amount of the general house 1, the temperature of the air when the air is sucked into the humidifier 16, and the total air volume of the transfer fan 3. Identify the number of revolutions. Here, the controller 50 sets a larger required rotation speed as the required humidification amount is higher or as the suction temperature is lower.

In the present embodiment, the controller 50 identifies the required number of rotations based on the humidification performance data of the humidifier 16 . The humidification performance data is data obtained in advance by experimental evaluation, and is performed under the conditions of the air temperature T when the air is sucked into the humidifier 16, the rotation speed R of the pumping pipe 37, and the total air volume Q of the transfer fan 3. It shows the humidification amount X output by the humidifier 16 when the humidification operation is performed. Here, the amount of humidification X emitted by the humidifier 16 corresponds to the amount of water contained in the air flowing through the humidifier 16 . Due to the characteristics of the humidifying device 16, the humidification amount X has a positive correlation with the suction temperature T and the rotational speed R, respectively. For example, the amount of humidification when the suction temperature Ta and the rotation speed Ra are the humidification amount Xa, the humidification amount when the suction temperature Tb and the rotation speed Rb are the humidification amount Xb, and the rotation speed Ra<the rotation speed Rb and the temperature Ta = temperature Tb, the magnitude relationship between the amount of humidification Xa and the amount of humidification Xb is the amount of humidification Xa<the amount of humidification Xb.

Subsequently, the controller 50 adjusts the rotation speed so that the required rotation speed falls within the range between the preset upper limit rotation speed and lower limit rotation speed (step S29). Specifically, when the required rotation speed is within the range between the upper limit rotation speed and the lower limit rotation speed, the controller 50 maintains the required rotation speed specified in step S27 as the rotation speed of the humidifier 16. set as On the other hand, when the required rotation speed exceeds the upper limit rotation speed, the controller 50 corrects and sets the upper limit rotation speed as the rotation speed of the humidifying device 16 . Further, when the required rotation speed is lower than the lower limit rotation speed, the controller 50 corrects and sets the rotation speed of the humidifying device 16 to the lower limit rotation speed.

Then, the controller 50 causes the humidifying device 16 to perform the humidification processing operation at the rotation speed set in step S29 (step S30). After that, the controller 50 terminates the humidification control with the humidification processing operation executed, returns to step S01, and repeats the basic processing operation and the humidification processing operation.

Next, with reference to FIG. 6, a processing operation for specifying the living room set humidity Xt, which is the humidification target value, will be described. FIG. 6 is a flow chart showing a processing operation for identifying the living room set humidity Xt in humidification control. Here, the living room 2a will be exemplified and explained as the living room 2 to be processed.

In the processing operation for identifying the living room set humidity Xt, as shown in FIG. 6, the controller 50 first acquires the outside temperature To, the first set absolute humidity Xt1, and the living room set temperature Tset in the living room 2a (step S31). ). Here, the outside temperature To is the temperature of the air near the outside of the living room 2a transmitted from the outside temperature sensor 15a. The first set absolute humidity Xt1 is the absolute humidity specified based on the target humidity set for the living room 2a. A converted value is set. The living room set temperature Tset corresponds to the target temperature set for the living room 2a.

Then, the controller 50 refers to the acquired outside temperature To and living room set temperature Tset to specify the wall surface temperature Tw of the outer wall 9a that constitutes the living room 2a (step S32). Here, the wall surface temperature Tw is the temperature near the wall surface of the outer wall 9a on the living room 2a side (it can also be said to be the surface temperature of the wall surface on the living room 2 side), and can be obtained, for example, by the formula (1).

Here, U is the wall temperature estimation coefficient, which is determined based on the heat insulation performance information of the outer wall 9 and takes a value between "0" and "1". More specifically, the wall temperature estimation coefficient takes a lower value as the heat insulating performance of the outer wall 9 is higher, and when U=0, Tw=Tset, which means complete heat insulation. The wall surface (the wall surface of the outer wall 9a on the living room 2a side) referred to in setting the wall temperature estimation coefficient is preferably the wall surface having the lowest heat insulation performance among the outer walls 9 constituting the living room 2. For example, a window such as a windowpane corresponds to this, and when the window is composed of single-layer glass, U is set to about 0.8.

Subsequently, the controller 50 specifies the second set absolute humidity Xt2 based on the specified wall surface temperature Tw of the outer wall 9 (step S33). In the present embodiment, the second set absolute humidity Xt2 is set to a limit absolute humidity that does not cause dew condensation on the wall surface of the outer wall 9 on the living room 2 side. More specifically, the second set absolute humidity Xt2 is obtained and set from the relationship between temperature and relative humidity according to the idea of a psychrometric diagram using the room set temperature Tset and the protection control relative humidity rh.

Here, the protection control relative humidity rh is assumed to be the limit temperature at which dew condensation occurs in the wall surface temperature Tw of the outer wall 9 on the living room 2 side in the living room 2, and the absolute humidity of the living room 2 in that case is the room setting It is the relative humidity of the living room 2 converted in the case of the temperature Tset, and can be obtained, for example, by the calculation formula shown in Equation (2).

Here, A', B', and C' are determined from the empirical formula used to calculate the dew point temperature obtained from the living room set temperature and the living room relative humidity, A' = -26.44, B' = 0.899, C'=0.3545.

Next, the controller 50 determines which of the first set absolute humidity Xt1 and the second set absolute humidity Xt2 should be set as the living room set humidity Xt in the living room 2a. Specifically, the controller 50 determines whether or not the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2. (Step S34). Then, as a result of determination, when it is determined that the first set absolute humidity Xt1 is not greater than the second set absolute humidity Xt2, that is, the first set absolute humidity Xt1 is equal to or less than the second set absolute humidity Xt2 (NO in step S34). 2, the controller 50 sets the first set absolute humidity Xt1 as the living room set humidity Xt. Then, the controller 50 ends the processing operation for specifying the living room set humidity Xt, returns to step S21 in FIG. Then, the humidification processing operation after step S22 is executed. It should be noted that the first humidification control can be said to be control that is performed on the humidifier 16 based on the first set absolute humidity Xt1.

On the other hand, as a result of the determination in step S34, when it is determined that the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2 (YES in step S34), the controller 50 sets the second set absolute humidity Xt2 to the living room. Set as the set humidity Xt. Then, the controller 50 ends the processing operation for specifying the living room set humidity Xt, returns to step S21 in FIG. Then, the humidification processing operation after step S22 is executed. It should be noted that the second humidification control can be said to be control that is performed on the humidifier 16 based on the second set absolute humidity Xt2.

In the present embodiment, the processing operations described above are executed in all of the plurality of rooms 2 (rooms 2a to 2d). Then, if the controller 50 determines that the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2 even in one of the plurality of living rooms 2 (for example, the living room 2a), the remaining living rooms 2b to Also in 2d, humidification control (second humidification control) linked to the living room 2a is executed regardless of the determination results in the living rooms 2b to 2d.

As described above, according to the air conditioning system 20 according to Embodiment 1, the following effects can be obtained.

(1) The air conditioning system 20 includes an air conditioning room 18 configured to allow air to be introduced from the outside, an air conditioner 13 installed in the air conditioning room 18 to control the temperature of the air in the air conditioning room 18, and an air conditioner 13 installed in the air conditioning room 18. a humidifying device 16 for humidifying the air temperature-controlled by the air conditioner 13; a carrier fan 3 for carrying the air in the air-conditioned room 18 to the living room 2 independent of the air-conditioned room 18; and a controller 50 that controls the The controller 50 uses the first set absolute humidity Xt1 and the second set absolute humidity Xt2 set in the living room 2, and when the first set absolute humidity Xt1 is equal to or less than the second set absolute humidity Xt2, the humidifying device 16 to perform the first humidification control based on the first set absolute humidity Xt1, and when the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2, the humidifier 16 is set to the second set absolute humidity The second humidification control based on is executed.

By doing so, the living room set humidity Xt of the controller 50 is set based on the first set absolute humidity Xt1 set in the living room 2 and the second set absolute humidity specified based on the wall surface temperature of the outer wall 9 constituting the living room 2. The humidity Xt2 is set to the lower humidity. For this reason, when the wall surface temperature is low, the second living room set humidity Xt2 specified based on the wall surface temperature is introduced while controlling the first living room set humidity Xt1 set in the living room 2 at normal times. As a result, the air conditioning system can perform humidification while suppressing the occurrence of dew condensation.

(2) In the air conditioning system 20, the controller 50 sets the wall surface temperature based on the first set temperature Xt1 of the living room 2, the external temperature T0 of the living room 2, and the heat insulation performance information of the outer wall 9. . By doing so, the wall surface temperature is set lower as the outside temperature T0 is lower or as the heat insulation performance of the outer wall 9 is lower. That is, the lower the external temperature T0 or the lower the insulation performance of the outer wall 9, the lower the room set humidity Xt (second room set humidity Xt2) is set. Therefore, it is possible to change the living room set humidity Xt according to the temperature change of the outer wall 9 of the living room 2, and to further enhance the effect of suppressing dew condensation when the wall surface temperature is low.

(3) In the air conditioning system 20, the controller 50 sets the second set absolute humidity Xt2 to the absolute humidity at which the wall surface temperature becomes the dew point. By doing so, the second set absolute humidity Xt2 is not set to exceed the absolute humidity that causes dew condensation on the outer wall 9 of the living room 2 . As a result, since the humidifier 16 does not humidify the outer wall 9 of the living room 2 beyond the absolute humidity that causes dew condensation, the effect of suppressing dew condensation on the outer wall 9 of the living room 2 can be further enhanced.

(4) In the air conditioning system 20, the controller 50 may use the surface temperature of the windows provided on the outer wall 9 on the room 2 side as the wall surface temperature. By doing so, the window portion of the outer wall 9, which generally has low heat insulating performance and is most prone to dew condensation, is prevented from being humidified by the humidifier 16 exceeding the absolute humidity that causes dew condensation. Therefore, the effect of suppressing dew condensation can be further enhanced.

(5) In the air conditioning system 20 , the living room 2 is one of the plurality of living rooms 2 . When the controller 50 determines that the second humidification control by the humidifying device 16 is to be executed for at least one living room 2 among the plurality of living rooms 2, the controller 50 determines that the second humidification control is to be performed by the humidifying device 16, among the plurality of living rooms 2 other than the at least one living room 2 The second humidification control by the humidifier 16 may also be executed for the living room 2 of . In this way, dew condensation is prevented from occurring in the living room 2 where condensation is most likely to occur, that is, control is performed so that dew condensation does not occur in all living rooms 2, so that the effect of suppressing dew condensation can be further enhanced. .

(Embodiment 2)
An air conditioning system 20a according to Embodiment 2 of the present disclosure will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 is a schematic connection diagram of an air conditioning system 20a according to Embodiment 2 of the present disclosure. FIG. 8 is a flow chart showing a processing operation for identifying the living room set humidity Xt in the humidification control of the air conditioning system 20a.

In the air conditioning system 20a according to Embodiment 2, instead of the external temperature sensors 15a to 15d provided for each living room 2, an external temperature sensor 15e for acquiring the temperature of the air introduced from the outside into the heat exchange fan 4 is installed. It is different from the first embodiment in that The configuration of the air conditioning system 20a other than this point is the same as that of the air conditioning system 20 according to the first embodiment. In the following, repetitive explanations of the contents already explained in the first embodiment will be omitted as appropriate, and differences from the first embodiment will be mainly explained.

As shown in FIG. 7, the air conditioning system 20a includes an external temperature sensor 15e installed in a duct that introduces air into the heat exchange fan 4 from the outside. The external temperature sensor 15e is a sensor that acquires the temperature of the air introduced into the heat exchange fan 4 from the outside and transmits it to the controller 50 as the external temperature Toe. Then, the controller 50 of the air conditioning system 20a uses each piece of information including the external temperature Toe transmitted from the external temperature sensor 15e as a humidification process operation to specify the living room set humidity Xt in step S21 of FIG.

Specifically, with reference to FIG. 8, a processing operation for specifying room set humidity Xt in the present embodiment will be described. FIG. 8 is a flow chart showing a processing operation for specifying the living room set humidity Xt in the humidification control according to the present embodiment.

8, the controller 50 first determines the external temperature Toe transmitted from the external temperature sensor 15e, the first set absolute humidity Xt1, and the room set temperature Tset. acquire (step S41).

Then, the controller 50 refers to the acquired outside temperature Toe and living room set temperature Tset, and specifies the wall surface temperature Twe of the outer wall 9a constituting the living room 2a (step S42). The wall surface temperature Twe may be the temperature of the inner wall surface of the living room 2a of the outer wall 9a, or the temperature of the outer wall surface of the living room 2a. That is, in the present embodiment, the wall surface temperature Twe is specified by regarding the temperature of the outside air introduced into the general house 1 as the temperature of the air near the outside of the living room 2a. Here, the wall surface temperature Twe can be obtained by, for example, the calculation formula shown in Numerical Expression (3).

Subsequently, the controller 50 identifies the second set absolute humidity Xt2e based on the identified wall surface temperature Twe of the outer wall 9 (step S43). More specifically, the second set absolute humidity Xt2e is determined and set from the relationship between temperature and relative humidity according to the idea of a psychrometric diagram using the room set temperature Tset and the protection control relative humidity rhe.

Here, the protection control relative humidity rhe can be obtained, for example, by the formula shown in Equation (4).

Next, the controller 50 determines whether or not the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2e. (Step S44). Then, as a result of determination, when it is determined that the first set absolute humidity Xt1 is not greater than the second set absolute humidity Xt2e, that is, the first set absolute humidity Xt1 is equal to or less than the second set absolute humidity Xt2e (NO in step S44). Then, the controller 50 sets the first set absolute humidity Xt1 as the living room set humidity Xt (step S45). Then, the controller 50 ends the processing operation for specifying the living room set humidity Xt, returns to step S21 in FIG. Then, the humidification processing operation after step S22 is executed.

On the other hand, if it is determined that the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2e as a result of the determination in step S44 (YES in step S44), the controller 50 sets the second set absolute humidity Xt2e to It is set as the set humidity Xt (step S46). Then, the controller 50 ends the processing operation for specifying the living room set humidity Xt, returns to step S21 in FIG. Then, the humidification processing operation after step S22 is executed.

In the present embodiment, the processing operations described above are executed in all of the plurality of rooms 2 (rooms 2a to 2d). Then, if the controller 50 determines that the first set absolute humidity Xt1 is greater than the second set absolute humidity Xt2e even in one of the plurality of living rooms 2 (for example, the living room 2a), the remaining living rooms 2b to Also in 2d, humidification control (second humidification control) linked to the living room 2a is executed regardless of the determination results in the living rooms 2b to 2d.

As described above, according to the air conditioning system 20a according to Embodiment 2, in addition to the effects (1) to (5) described above, the following effects can be obtained.

(6) The air conditioning system 20a replaces the external temperature sensors 15a to 15d provided for each living room 2 with an external temperature sensor 15e installed in a duct that introduces air into the heat exchange fan 4 from the outside. Temperature Toe is acquired. By doing so, the second set absolute humidity Xt2 is specified using the external temperature Toe, which is likely to be detected as the lowest temperature. Setting exceeding the humidity is further suppressed.

(7) In the air conditioning system 20a, one external temperature sensor 15e is used to acquire the external temperature Toe. Since this eliminates the need to provide a plurality of external temperature sensors 15 corresponding to the number of rooms 2, the cost of the air conditioning system 20a can be reduced.

The present disclosure has been described above based on the embodiment. It should be understood by those skilled in the art that this embodiment is an example, and that various modifications can be made to the combination of each component or each treatment process, and such modifications are within the scope of the present disclosure.

In the air conditioning systems 20 and 20a according to the embodiment, the processing operation for specifying the room set humidity Xt is executed in all of the plurality of living rooms 2 (rooms 2a to 2d), but the present invention is not limited to this. For example, if it is possible to specify and designate a living room 2 in which dew condensation is likely to occur in advance, the processing operation may be executed only for the designated living room 2 . Thereby, the processing load in the air conditioning systems 20 and 20a can be reduced.

The air conditioning system according to the present disclosure is useful as it can humidify the air-conditioned space while suppressing the occurrence of dew condensation in the air-conditioned space.

1 Ordinary house 2, 2a, 2b, 2c, 2d Living room 3, 3a, 3b Conveying fan 4 Heat exchange fan 5, 5a, 5b, 5c, 5d Damper for living room 6, 6a, 6b, 6c, 6d Circulation port 7, 7a , 7b, 7c, 7d living room exhaust port 8, 8a, 8b, 8c, 8d living room air supply port 9, 9a, 9b, 9c, 9d outer wall 11, 11a, 11b, 11c, 11d living room temperature sensor 12, 12a, 12b, 12c, 12d living room humidity sensor 13 air conditioner 14 suction temperature sensor 15, 15a, 15b, 15c, 15d, 15e external temperature sensor 16 humidifier 17 dust collection filter 18 air-conditioned room 20 air-conditioning system 20a air-conditioning system 31 suction port 32 outlet 33 Liquid atomization chamber 34 Rotary motor 35 Rotating shaft 36 Centrifugal fan 37 Pumping pipe 38 Rotating plate 39 Opening 40 Water reservoir 41 First eliminator 42 Second eliminator 50 Controller 50a Operation panel 50b Input unit 50c Processing unit 50d Storage unit 50e Clock unit 50f Damper opening identification unit 50g Air volume identification unit 50h Set temperature identification unit 50i Output unit 50j Display panel 50k Rotational speed identification unit

Claims (5)

1. an air-conditioned room configured to be able to introduce air from the outside;
   an air conditioner installed in the air-conditioned room for controlling the temperature of the air in the air-conditioned room;
   a humidifying device installed in the air-conditioned room and humidifying the air temperature-controlled by the air conditioner;
   a conveying fan for conveying air in the air-conditioned room to an air-conditioned space independent of the air-conditioned room;
   a controller that controls the humidifying device;
   with
   The controller controls a first set absolute humidity specified based on a target humidity set for the air-conditioned space and a second set absolute humidity specified based on the wall surface temperature of an outer wall constituting the air-conditioned space. is used to cause the humidifying device to perform first humidification control based on the first set absolute humidity when the first set absolute humidity is equal to or less than the second set absolute humidity, and the first set When the absolute humidity is greater than the second set absolute humidity, causing the humidifier to perform second humidification control based on the second set absolute humidity.
   air conditioning system.
2. The controller sets the wall surface temperature based on a target temperature set for the air-conditioned space, an external temperature outside the air-conditioned space, and insulation performance information of the outer wall.
   The air conditioning system of Claim 1.
3. The controller sets the second set absolute humidity to an absolute humidity at which the wall surface temperature is the dew point.
   The air conditioning system according to claim 1 or 2.
4. The controller uses, as the wall surface temperature, the surface temperature of the window provided on the outer wall on the side of the space to be air-conditioned.
   The air conditioning system according to any one of claims 1-3.
5. The air-conditioned space is one of a plurality of air-conditioned spaces,
   When the controller determines to execute the second humidification control by the humidifying device for at least one air-conditioned space among the plurality of air-conditioned spaces, other than the at least one air-conditioned space, causing the humidifying device to perform the second humidification control on the air-conditioned space among the plurality of air-conditioned spaces;
   The air conditioning system according to any one of claims 1-4.

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