JP7637848B2 - Air Conditioning System - Google Patents

Description

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

Traditionally, homes have been air-conditioned using central air conditioners. Furthermore, with the growing demand for energy-saving homes and stricter regulations, it is expected that the number of highly insulated and airtight homes will increase, and there is a demand for air-conditioning systems that are suited to these characteristics.

One such type of air conditioning system is a whole-building air conditioning system, which conditions the air transported from multiple spaces (rooms) to an air-conditioning room to a predetermined temperature and humidity level in the air-conditioning room and then transports the air to each of the multiple spaces (rooms) so that the air temperature and humidity in the multiple spaces become the target temperature and humidity (for example, Patent Document 1).

JP 2020-63899 A

In a conventional central air conditioning system, the temperature of the air in the air conditioning room is controlled by an air conditioner installed in the air conditioning room, and the humidity of the air in the air conditioning room is controlled by a humidifier also installed in the air conditioning room. The conditioned (temperature-controlled and humidified) air is then transported to each room by a blower (transport fan) installed in the air conditioning room. However, if the amount of air transported to each room (air volume of the blower) fluctuates, the amount of moisture supplied to each room, that is, the humidity of each room, will fluctuate accordingly. For example, if the amount of air transported to each room increases, the moisture contained in the air of the increased amount is excessively supplied to each room, and the humidity of each room will increase. In this way, in a conventional central air conditioning system, the humidity of the air in each room may not be stably maintained at the target humidity. In other words, with conventional central air conditioning systems, the amount of moisture supplied to each room changes due to fluctuations in the blower's air volume, resulting in unstable humidification control by the humidifier.

The present invention has been made to solve the above problems, and provides an air conditioning system that can control humidification using a humidifier in response to fluctuations in the air volume of the transport fan.

In order to achieve this object, the air conditioning system according to the present invention includes an air-conditioned room configured to be able to introduce air from the outside, an air conditioner installed in the air-conditioned room and controlling the temperature of the air in the air-conditioned room, a humidifier installed in the air-conditioned room and humidifying the air temperature-controlled by the air conditioner, a plurality of transport fans that transport the air in the air-conditioned room to a plurality of conditioned spaces independent of the air-conditioned room, and a controller that controls the humidifier and the transport fan. The humidifier is configured to centrifugally crush and finely disperse water pumped by the rotation of the lift pipe, and to include the water in the air temperature-controlled by the air conditioner and release the water. The controller specifies the number of revolutions of the lift pipe based on the required amount of humidification of the conditioned space, the temperature of the air temperature-controlled by the air conditioner, and the air volume of the transport fan, and controls the amount of humidification of the air temperature-controlled by the air conditioner based on the specified number of revolutions. The controller is characterized in that when the air volume of the conveying fan increases, the controller controls the rotation speed of the lifting pipe to decrease, and when the air volume of the conveying fan decreases, the controller controls the rotation speed of the lifting pipe to increase .

The present invention provides an air conditioning system that can control humidification using a humidifier in response to fluctuations in the air volume of the transport fan.

FIG. 1 is a schematic connection diagram of an air conditioning system according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a humidifier constituting an air conditioning system. FIG. 3 is a schematic functional block diagram of the controller of the air conditioning system. FIG. 4 is a flowchart showing the basic processing operation of the controller. FIG. 5 is a flowchart showing the humidification control operation of the controller. FIG. 6 is a diagram showing humidification performance data of the humidifier. FIG. 7 is a flowchart showing the transport fan air volume correction process of the controller. FIG. 8 is a flowchart showing the control operation of the suction port damper by the controller.

The air conditioning system according to the present invention includes an air-conditioned room configured to be able to introduce air from the outside, an air conditioner installed in the air-conditioned room to adjust the temperature of the air in the air-conditioned room, a humidifier installed in the air-conditioned room to humidify the air adjusted by the air conditioner, a plurality of transport fans to transport the air in the air-conditioned room to a plurality of conditioned spaces independent of the air-conditioned room, and a controller to control the humidifier and the transport fan. The humidifier is configured to centrifugally crush and finely disperse water pumped by the rotation of the lift pipe, and release the water by including it in the air adjusted by the air conditioner. The controller specifies the rotation speed of the lift pipe based on the required humidification amount of the conditioned space, the temperature of the air adjusted by the air conditioner, and the air volume of the transport fan, and controls the amount of humidification of the air adjusted by the air conditioner based on the specified rotation speed.

With this configuration, even if the volume of air being transported to the conditioned space fluctuates, the amount of humidification added to the air being transported to the conditioned space is adjusted accordingly, suppressing fluctuations in the amount of moisture supplied to the conditioned space and enabling the humidity of the air in the conditioned space to be stably maintained at a target humidity. In other words, it is possible to create an air conditioning system that is capable of controlling humidification using a humidifier in response to fluctuations in the air volume of the transport fan.

In addition, in the air conditioning system according to the present invention, the controller controls the rotation speed of the lift pipe to decrease when the air volume of the transport fan increases, and controls the rotation speed of the lift pipe to increase when the air volume of the transport fan decreases. As a result, when the air volume of the transport fan increases, the amount of humidification added to the air transported to the conditioned space decreases, and when the air volume of the transport fan decreases, the amount of humidification added to the air transported to the conditioned space increases, so that fluctuations in the amount of moisture supplied to the conditioned space due to fluctuations in the air volume of the transport fan can be reliably suppressed.

In the air conditioning system according to the present invention, the pumping pipe can rotate within a range between the lower limit rotation speed and the upper limit rotation speed, and the controller may control the conveying fan to increase the air volume when the humidification amount that can be output at the upper limit rotation speed is lower than the required humidification amount, and control the conveying fan to decrease the air volume when the humidification amount that can be output at the lower limit rotation speed is higher than the required humidification amount. In this way, when the humidification amount that can be output at the upper limit rotation speed is lower than the required humidification amount, the amount of air conveyed to the conditioned space increases, so that the amount of moisture supplied to the conditioned space can be increased. On the other hand, when the humidification amount that can be output at the lower limit rotation speed is higher than the required humidification amount, the amount of air conveyed to the conditioned space decreases, so that the amount of moisture supplied to the conditioned space can be reduced. In other words, in the air conditioning system, the range in which the humidification amount can be adjusted by the humidifier is expanded, and highly accurate humidification adjustment is possible for the air whose temperature has been adjusted by the air conditioner.

The air conditioning system according to the present invention may further include a damper that adjusts the amount of air flowing into the humidifier, and the controller may be configured to control the damper and perform control to reduce the amount of air flowing in by the damper when the amount of humidification that can be output at the lower limit rotation speed exceeds the required amount of humidification. This further reduces the amount of humidification to be added to the air transported to the conditioned space when the amount of humidification that can be output at the lower limit rotation speed exceeds the required amount of humidification, thereby further reducing the amount of moisture supplied to the conditioned space.

The following describes an embodiment of the present invention with reference to the drawings.

(Embodiment 1)
First, an air conditioning system 20 according to the first embodiment will be described with reference to Fig. 1. Fig. 1 is a schematic connection diagram of the air conditioning system 20 according to the first embodiment of the present invention.

The air conditioning system 20 includes a plurality of transport fans 3 (transport fans 3a, 3b), a heat exchange fan 4, a plurality of occupant room dampers 5 (occupant room dampers 5a, 5b, 5c, 5d), a plurality of circulation ports 6 (circulation ports 6a, 6b, 6c, 6d), a plurality of occupant room exhaust ports 7 (occupant room exhaust ports 7a, 7b, 7c, 7d), a plurality of occupant room intake ports 8 (occupant room intake ports 8a, 8b, 8c, 8d), and an occupant room temperature control unit. It is equipped with a temperature sensor 11 (room temperature sensors 11a, 11b, 11c, 11d), a room humidity sensor 12 (room humidity sensors 12a, 12b, 12c, 12d), an air conditioner (air conditioner) 13, an intake temperature sensor 14, an intake damper 15, a humidifier 16, a dust collection filter 17, and a controller 50 (corresponding to an air conditioning controller).

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

Here, the living room 2a is provided with a circulation port 6a, a living room exhaust port 7a, a living room intake port 8a, a living room temperature sensor 11a, a living room humidity sensor 12a, and a controller 50. The living room 2b is provided with a circulation port 6b, a living room exhaust port 7b, a living room intake port 8b, a living room temperature sensor 11b, and a living room humidity sensor 12b. The living room 2c is provided with a circulation port 6c, a living room exhaust port 7c, a living room intake port 8c, a living room temperature sensor 11c, and a living room humidity sensor 12c. The living room 2d is provided with a circulation port 6d, a living room exhaust port 7d, a living room intake port 8d, a living room temperature sensor 11d, and a living room humidity sensor 12d.

Meanwhile, in the air-conditioned room 18, there are installed the transport fan 3a, the transport fan 3b, the occupant room damper 5a, the occupant room damper 5b, the occupant room damper 5c, the occupant room damper 5d, the air conditioner 13, the intake temperature sensor 14, the intake port damper 15, the humidifier 16, and the dust collection filter 17. More specifically, from the upstream side of the circulation path of the air flowing in the air-conditioned room 18, the air conditioner 13, the dust collection filter 17, the intake temperature sensor 14, the intake port damper 15, the humidifier 16, the transport fan 3 (transport fans 3a, 3b), and the occupant room damper 5 (occupant room dampers 5a, 5b, 5c, 5d) are arranged in this order.

Air is introduced from the outside of the air-conditioning room 18 to the inside of the air-conditioning room 18. In the air-conditioning room 18, air (indoor air) transported from each living room 2 through the circulation port 6 is mixed with outside air (outdoor air) taken in by the heat exchange fan 4 and heat exchanged. The temperature and humidity of the air in the air-conditioning room 18 are controlled by the air conditioner 13 and the humidifier 16 installed in the air-conditioning room 18, that is, the air is conditioned to generate air to be transported to the living room 2. The air conditioned in the air-conditioning room 18 is transported to each living room 2 by the transport fan 3. Here, the air-conditioning room 18 means a space with a certain size in which the air conditioner 13, the intake temperature sensor 14, the intake port damper 15, the humidifier 16, the dust collection filter 17, etc. can be arranged and the air conditioning of each living room 2 can be controlled, but it is not intended as a living space and does not basically mean a room where residents stay.

Air from each room 2 is transported to the air-conditioned room 18 through the circulation port 6, and is also heat-exchanged through the heat exchange fan 4 through the room exhaust port 7 before being discharged outdoors. The air-conditioning system 20 performs Type 1 ventilation by using the heat exchange fan 4 to exhaust inside air (indoor air) from each room 2 while taking in outside air (outdoor air) into the room. The ventilation air volume of the heat exchange fan 4 can be set in multiple stages, and the ventilation air volume is set to meet the required ventilation volume stipulated by law.

The heat exchange fan 4 is configured with an intake fan and an exhaust fan (not shown) inside, and by operating each fan, ventilation is performed while exchanging heat between the inside air (indoor air) and the outside air (outdoor air). At this time, the heat exchange fan 4 transports the heat-exchanged outside air to the air-conditioned room 18.

The transport fan 3 is provided on the wall (bottom wall) of the air-conditioning room 18. The air in the air-conditioning room 18 is transported by the transport fan 3 through the transport duct from the room air supply port 8 to the room 2. More specifically, the air in the air-conditioning room 18 is transported by the transport fan 3a to the room 2a and room 2b located on the first floor of the general house 1, and by the transport fan 3b to the room 2c and room 2d located on the second floor of the general house 1. The transport ducts connected to the room air supply port 8 of each room 2 are provided independently.

When transporting air from the transport fan 3 to each resident's room 2, the resident's room damper 5 adjusts the amount of air sent to each resident's room 2 by adjusting the opening degree of the resident's room damper 5. More specifically, the resident's room damper 5a adjusts the amount of air sent to resident's room 2a located on the first floor, the resident's room damper 5b adjusts the amount of air sent to resident's room 2b located on the first floor, the resident's room damper 5c adjusts the amount of air sent to resident's room 2c located on the second floor, and the resident's room damper 5d adjusts the amount of air sent to resident's room 2d located on the second floor.

A portion of the air in each room 2 (rooms 2a to 2d) is transported to the air-conditioning room 18 through the corresponding circulation port 6 (circulation port 6a to 6d) via the circulation duct. Here, the air transported through the circulation port 6 is naturally transported to the air-conditioning room 18 as circulating air by the difference between the air volume (supply air volume) transported from the air-conditioning room 18 to each room 2 by the transport fan 3 and the air volume (exhaust air volume) exhausted to the outside from the room exhaust port 7 by the heat exchange fan 4. Note that the circulation ducts connecting the air-conditioning room 18 and each room 2 may be provided independently, or multiple branch ducts that are part of the circulation duct may be merged midway to be integrated into one circulation duct, which is then connected to the air-conditioning room 18.

As described above, each circulation port 6 (circulation ports 6a to 6d) is an opening for transporting indoor air from each room 2 (rooms 2a to 2d) to the air-conditioned room 18.

As described above, each room exhaust vent 7 (room exhaust vents 7a to 7d) is an opening for transporting indoor air from each room 2 (rooms 2a to 2d) to the heat exchange fan 4.

As described above, each room air supply port 8 (room air supply ports 8a to 8d) is an opening for transporting air from the air-conditioning room 18 to each room 2 (rooms 2a to 2d).

The room temperature sensor 11 (room temperature sensors 11a to 11d) is a sensor that acquires the room temperature (room temperature) of each corresponding room 2 (rooms 2a to 2d) and transmits it to the controller 50.

The room humidity sensor 12 (room humidity sensors 12a to 12d) is a sensor that acquires the room humidity (indoor humidity) of the corresponding room 2 (rooms 2a to 2d) and transmits it to the controller 50.

The air conditioner 13 corresponds to an air conditioner and controls the air conditioning of the air-conditioned 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 becomes the set temperature (air-conditioned room target temperature). Here, the set temperature is set to a temperature based on the result of calculating the required air conditioning amount from the temperature difference between the target temperature (room target temperature) set by the user and the room temperature. In this embodiment, the set temperature is set to a temperature at least higher than the target temperature in order to adjust the air temperature in each room 2 to the target temperature more quickly.

The intake temperature sensor 14 is a sensor that acquires the temperature of the air conditioned 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 being sucked into the humidifier 16, and transmits it to the controller 50.

The intake damper 15 is installed corresponding to the intake 31 of the humidifier 16 described below, and when air in the air-conditioned room 18 is sucked in through the intake 31, the opening degree of the intake damper 15 is adjusted to adjust the amount of air flowing into the humidifier 16.

The humidifier 16 is located downstream of the air conditioner 13 (and dust collection filter 17) in the air-conditioning room 18, and when the humidity of the air in each room 2 (room humidity) is lower than the target humidity (room target humidity) set by the user, it humidifies the air in the air-conditioning room 18 so that the humidity becomes the target humidity. The humidity handled here is indicated as a relative humidity, but it may be handled as an absolute humidity by a specified conversion process. In this case, it is preferable to handle the entire handling in the air-conditioning system 20, including the humidity in the room 2, as an absolute humidity. Details of the humidifier 16 will be described later.

The dust collection filter 17 is a dust collection filter that captures particles suspended in the air introduced into the air-conditioned room 18. The dust collection filter 17 captures particles contained in the air transported into the air-conditioned room 18 through the circulation port 6, thereby making the air supplied to the room by the transport fan 3 clean air. Here, the dust collection filter 17 is installed so as to block the air flow path in the area between the air conditioner 13 and the humidifier 16.

The controller 50 is a controller that controls the entire air conditioning system 20. The controller 50 is connected to each of the heat exchange fan 4, the transport fan 3, the room damper 5, the room temperature sensor 11, the room humidity sensor 12, the air conditioner 13, the intake temperature sensor 14, the intake damper 15, and the humidifier 16 so that they can communicate with each other via wireless communication.

The controller 50 also controls the air conditioner 13, humidifier 16, opening of the intake damper 15, the air volume of the transport fan 3, and the opening of the room damper 5 according to the room temperature and room humidity of each room 2 acquired by the room temperature sensor 11 and room humidity sensor 12, the set temperature (room set temperature) and set humidity (room set humidity) set for each room 2a to 2d, and the air temperature of the air-conditioned room 18 acquired by the intake temperature sensor 14. The air volume of the transport fan 3 may be controlled individually for each fan.

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

Here, the controller 50, the heat exchange fan 4, the transport fan 3, the room damper 5, the room temperature sensor 11, the room humidity sensor 12, the air conditioner 13, the intake temperature sensor 14, the intake damper 15, and the humidifier 16 are connected by wireless communication, making it possible to eliminate the need for complex wiring work. However, all of these, or some of these and the controller 50, may be configured to be able to communicate by wired communication.

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

The humidifier 16 is located downstream of the air conditioner 13 in the air-conditioning room 18, and is a device for humidifying the air in the air-conditioning room 18 by centrifugal water crushing. In other words, the humidifier 16 is a device configured to centrifugally crush and finely atomize the water pumped by the rotation of the lift pipe 37, and to release the water by incorporating it into air whose temperature has been adjusted by the air conditioner 13.

The humidifier 16 has an intake port 31 that draws in air from the air-conditioning chamber 18, an outlet port 32 that blows humidified air into the air-conditioning chamber 18, an air passage provided between the intake port 31 and the outlet port 32, and a liquid atomization chamber 33 provided in the air passage.

The suction port 31 is provided on the top surface of the housing that constitutes the outer frame of the humidifier 16, and the outlet port 32 is provided on the side of the housing. The liquid atomization chamber 33 is the main part of the humidifier 16, and is where water is atomized using a centrifugal water crushing method. In addition, an suction port damper 15 is attached to the suction port 31, as shown in Figure 1.

Specifically, the humidifier 16 includes a rotary motor 34, a rotary shaft 35 rotated by the rotary motor 34, a centrifugal fan 36, a cylindrical water lift pipe 37, a water storage section 40, a first eliminator 41, and a second eliminator 42.

The lift pipe 37 is fixed to the rotating shaft 35 inside the liquid atomization chamber 33, and while rotating in accordance with the rotation of the rotating shaft 35, it pumps up water from a circular lift port provided vertically downward. More specifically, the lift pipe 37 has an inverted cone-shaped hollow structure with a circular lift port provided vertically downward, and the rotating shaft 35 is fixed vertically to the center of the top surface of the inverted cone above the lift pipe 37. The rotating shaft 35 is connected to the rotating motor 34 located vertically above the liquid atomization chamber 33, so that the rotational motion of the rotating motor 34 is transmitted to the lift pipe 37 through the rotating shaft 35, causing the lift pipe 37 to rotate.

The rise pipe 37 is provided with a number of rotating plates 38 formed on the top surface side of the inverted cone shape so as to protrude outward from the outer surface of the rise pipe 37. The rotating plates 38 are formed so as to protrude outward from the outer surface of the rise pipe 37 with a certain distance between adjacent rotating plates 38 in the axial direction of the rotating shaft 35. Since the rotating plates 38 rotate together with the rise pipe 37, it is preferable that they have a horizontal disk shape coaxial with the rotating shaft 35. The number of rotating plates 38 is set appropriately according to the target performance or the dimensions of the rise pipe 37.

The wall surface of the water lift pipe 37 is provided with a number of openings 39 that penetrate the wall surface of the water lift pipe 37. Each of the openings 39 is provided at a position that communicates the inside of the water lift pipe 37 with the upper surface of a rotating plate 38 that is formed to protrude outward from the outer surface of the water lift pipe 37.

The centrifugal fan 36 is disposed vertically above the water lift pipe 37 and is a fan for drawing air into the device from the air conditioning room 18. The centrifugal fan 36 is fixed to the rotating shaft 35, just like the water lift pipe 37, and rotates in accordance with the rotation of the rotating shaft 35 to introduce air into the liquid fine-production chamber 33. The flow rate of the air introduced into the humidifier 16 (air introduced into the liquid fine-production chamber 33) increases or decreases depending on the air volume of the transport fan 3.

The water storage section 40 is located vertically below the lift pipe 37 and stores the water that the lift pipe 37 lifts from the lift port. The depth of the water storage section 40 is designed so that a portion of the lower part of the lift pipe 37, for example a length of about one-third to one-hundredth of the cone height of the lift pipe 37, is submerged. This depth can be designed according to the required amount of water to be lifted. The bottom surface of the water storage section 40 is formed in a cone shape facing the lift port. Water is supplied to the water storage section 40 by a water supply section (not shown).

The first eliminator 41 is a porous body through which air can flow, and is provided to the side (outer periphery in the centrifugal direction) of the liquid fine-dispersion chamber 33, and is arranged so that air can flow in the centrifugal direction. The first eliminator 41 finely disperses water droplets discharged from the opening 39 of the water lift pipe 37 as they collide with it, and also collects water droplets from the water contained in the air passing through the liquid fine-dispersion chamber 33. As a result, the air flowing through the humidifier 16 contains only vaporized water.

The second eliminator 42 is provided downstream of the first eliminator 41 and is arranged so that air can flow vertically upward. The first eliminator 41 is also a porous body through which air can flow, and the air that has passed through the first eliminator 41 collides with it, thereby capturing water droplets from the water contained in the air passing through the first eliminator 41. In this way, the fine water droplets are captured doubly by the two eliminators, making it possible to capture large water droplets with a higher degree of accuracy.

Next, we will explain the operating principle of humidification (water atomization) in the humidifier 16.

Next, the operating principle of humidification (water atomization) in the humidifier 16 will be explained with reference to Figure 2. In Figure 2, the flow of air and the flow of water within the device are indicated by arrows.

First, when the operation of the humidifier 16 is started, the rotary motor 34 rotates the rotary shaft 35 at a first rotation speed, and the centrifugal fan 36 starts sucking air from the air-conditioning room 18 through the suction port 31. Then, the lift pipe 37 rotates in accordance with the rotation of the rotary shaft 35 at the first rotation speed. Then, as shown by the water flow indicated by the dashed arrow, the centrifugal force generated by the rotation causes the water stored in the water storage section 40 to be pumped up by the lift pipe 37. Here, the first rotation speed of the rotary motor 34 (lift pipe 37) is set between 500 rpm and 3000 rpm, for example, depending on the air flow rate and the amount of humidification of the air. Since the lift pipe 37 has an inverted cone-shaped hollow structure, the water pumped up by the rotation is pumped up along the inner wall of the lift pipe 37. The pumped water is then released in the centrifugal direction from the opening 39 of the pumping pipe 37 along the rotating plate 38, and is scattered as water droplets.

The water droplets scattered from the rotating plate 38 fly through the space surrounded by the first eliminator 41 (liquid atomization chamber 33), collide with the first eliminator 41, and are atomized. Meanwhile, the air passing through the liquid atomization chamber 33 moves to the outer periphery of the first eliminator 41, as shown by the air flow indicated by the solid arrow, while containing the water crushed (atomized) by the first eliminator 41. Then, as the air flows through the air passage from the first eliminator 41 to the second eliminator 42, a vortex of the airflow is generated, and the water and air are mixed. Then, the air containing the water passes through the second eliminator 42. This allows the humidifier 16 to humidify the air sucked in through the suction port 31 and blow out the humidified air from the blowing port 32.

The liquid to be atomized may be something other than water, such as hypochlorous acid water, which has bactericidal or deodorizing properties.

Next, the controller 50 in the air conditioning system 20 will be described with reference to FIG. 3. FIG. 3 is a functional block diagram of the controller 50 in the air conditioning system 20.

The controller 50 is installed on a wall in a room that is the main focus of daily life, such as the living room of a typical house 1, and controls the operation of the air conditioner 13, the transport fan 3, the room damper 5, the intake damper 15, and the humidifier 16. To facilitate easy operation by the user, the controller 50 is installed at a height about the same as a person's face from the floor of the room. The controller 50 has a rectangular shape and is equipped with a display panel 50j in the center area on the front of the main body and an operation panel 50a in the area to the right of the display panel 50j.

The display panel 50j is an LCD monitor or the like, and displays on the display screen the operating status of the air conditioner 13, the transport fan 3, the room damper 5, the intake damper 15, and the humidifier 16, the room set temperature, the room set humidity, the current room temperature and room humidity in room 2, etc.

The operation panel 50a is a button switch or the like that allows the user to input the room set temperature and room set humidity for room 2, etc.

The controller 50 contains a control unit inside the main body, which includes a computer CPU (Central Processing Unit) and memory, etc.

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

The input unit 50b receives information (first information) relating to the room temperature of the room 2 from the room temperature sensor 11, information (second information) relating to the room humidity of the room 2 from the room humidity sensor 12, information (third information) relating to the suction temperature of the humidifier 16 from the suction temperature sensor 14, and information (fourth information) relating to the user's input settings from the operation panel 50a. The input unit 50b outputs the received first to fourth information to the processing unit 50c.

The memory unit 50d stores data referenced or updated by the processing unit 50c. For example, the memory unit 50d stores an algorithm that determines the operating modes of the air conditioner 13, the humidifier 16, and the transport fan 3. The memory unit 50d also stores the first information to the fourth information received by the input unit 50b in chronological order. The memory unit 50d then outputs the stored data (memorized data) to the processing unit 50c in response to a request from the processing unit 50c.

The timing unit 50e is used to measure time as necessary in the program executed by the processing unit 50c. The timing unit 50e then outputs data indicating the current time (time data) to the processing unit 50c.

The processing unit 50c receives the first to fourth information from the input unit 50b, the stored data from the memory unit 50d, and the time data from the timer unit 50e. Using the received information, the processing unit 50c determines the required air conditioning volume and the required humidification volume required for the living room 2 at regular intervals (e.g., 5 minutes). More specifically, the processing unit 50c determines the required air conditioning volume required individually for each living room 2a to 2d at regular intervals based on the time data obtained from the timer unit 50e and the temperature difference between the living room set temperature stored in the memory unit 50d and the living room temperature detected by the living room temperature sensors 11a to 11d installed in the living rooms 2a to 2d. Similarly, the processing unit 50c determines the required amount of humidification required for each room 2a to 2d at regular intervals based on the time data obtained from the timer unit 50e and the humidity difference between the room humidity setting stored in the memory unit 50d and the room humidity detected by the room humidity sensors 12a to 12d installed in the rooms 2a to 2d. The processing unit 50c also updates the display on the display panel 50j via the output unit 50i in response to changes in the information displayed on the display panel 50j.

The damper opening determination unit 50f acquires information on the required air conditioning volume from the processing unit 50c, and determines the opening of the room dampers 5a-5d based on the ratio of the required air conditioning volume for each of the rooms 2a-2d. The damper opening determination unit 50f also determines the opening of the intake damper 15 according to the air flow control operation of the transport fan 3, as will be described in detail later. The damper opening determination unit 50f then outputs information (opening information) on the determined opening of the room dampers 5a-5d and the opening of the intake damper 15 to the processing unit 50c.

The air volume determination unit 50g obtains information related to the required air conditioning volume from the processing unit 50c, and determines the blowing air volume of the air conditioner 13 based on the average or total value of the required air conditioning volume. The air volume determination unit 50g also determines the airflow volume of the transport fan 3 (transport fan 3a, transport fan 3b) based on the average or total value of the required air conditioning volumes for the first and second floors. The air volume determination unit 50g then outputs information related to the determined blowing air volume of the air conditioner 13 (blowout air volume information) and information related to the determined airflow volume of the transport fan 3 (airflow volume information) to the processing unit 50c.

The set temperature determination unit 50h obtains information related to the requested air conditioning volume from the processing unit 50c, and determines the set temperature of the air conditioner 13 based on the average or total value of the requested air conditioning volume. The set temperature determination unit 50h then outputs information related to the determined set temperature of the air conditioner 13 (air conditioner set temperature information) to the processing unit 50c.

The rotation speed determination unit 50k acquires information on the required air conditioning volume, information on the suction temperature of the humidifier 16, and air flow volume information from the processing unit 50c, and determines the rotation speed of the water lift pipe 37 (rotary motor 34) of the humidifier 16. The rotation speed determination unit 50k then outputs information on the determined rotation speed of the water lift pipe 37 (rotary speed information) to the processing unit 50c.

The processing unit 50c receives opening information from the damper opening degree identification unit 50f, blowing air volume information and blowing air volume information from the air volume identification unit 50g, air conditioner set temperature information from the set temperature identification unit 50h, and rotation speed information from the rotation speed identification unit 50k. Using the received information, the processing unit 50c identifies control information related to the operation of the air conditioner 13, the transport fan 3 (transport fan 3a, transport fan 3b), the room damper 5 (room dampers 5a-5d), the intake damper 15, and the humidifier 16. The processing unit 50c then outputs the identified 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 transport fan 3 (transport fan 3a, transport fan 3b), the room damper 5 (room dampers 5a to 5d), the air inlet damper 15, and the humidifier 16.

The air conditioner 13 performs air conditioning operation at the air conditioning set temperature and blowing air volume based on the control information output from the output unit 50i. The transport fans 3 (transport fans 3a and 3b) perform air blowing operation at the respective air blowing volumes based on the control information output from the output unit 50i. The occupant room dampers 5 (occupant room dampers 5a to 5d) perform air volume adjustment operation at the respective opening degrees based on the control information output from the output unit 50i. The suction port damper 15 performs air volume adjustment operation at the opening degrees based on the control information output from the output unit 50i. The humidifier 16 performs rotation operation of the water lift pipe 37 at the rotation speed based on the control information output from the output unit 50i.

In this manner, the controller 50 controls the operation of the air conditioner 13, the transport fan 3, the room damper 5, the intake damper 15, and the humidifier 16.

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

First, the controller 50 performs a determination as to whether the air conditioning system 20 should be terminated (step S01). As a result, if 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) (YES in step S01), the operation of the air conditioning system 20 is terminated. On the other hand, if the power supply of the air conditioning system 20 is on (NO in step S01), a determination is made as to whether time has passed (step S02). As a result, if the controller 50 has not passed a certain time (e.g., 10 minutes) since the previous processing (NO in step S02), it returns to step S01. On the other hand, if the certain time has passed since the previous processing (YES in step S02), it proceeds to step S03, and performs output determination processing for the room damper 5, the air conditioner 13, and the transport fan 3.

First, the controller 50 starts a loop for the number of rooms 2 (step S03). The controller 50 then calculates the required air conditioning volume for each of the rooms 2a to 2d (step S04). The controller 50 also specifies the opening degrees of the room dampers 5a to 5d corresponding to each of the rooms 2a to 2d (step S05). The controller 50 then ends the loop when it has completed calculating the required air conditioning volume for all of the rooms 2 and specifying the opening degrees of the room dampers 5 (step S06).

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

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

In step S05, the opening degree of the room damper 5a corresponding to the room 2a is determined according to the required air conditioning amount for the room 2a. In this embodiment, when the required air conditioning amount is 2°C or more, the opening degree is set to "100%", when it is 1°C or more and less than 2°C, the opening degree is set to "60%," when it is 0°C or more and less than 1°C, the opening degree is set to "45%," when it is -1°C or more and less than 0°C, the opening degree is set to "50%," and when it is less than -1°C, the opening degree is set to "10%. By setting in this manner, the opening degree of the room dampers 5a to 5d is set according to the ratio of the required air conditioning amounts for the rooms 2a to 2d, and more conditioned air is blown to the room (room 2) that requires a higher air conditioning amount, making it possible to control the temperature for each room 2.

Next, the controller 50 calculates the overall required air conditioning volume for the general residence 1 based on the required air conditioning volumes for each of the living rooms 2 (step S07). In this embodiment, the required air conditioning volume for the general residence 1 is calculated based on the average value of the required air conditioning volumes for each of the living rooms 2.

Next, the controller 50 specifies the air conditioning set temperature and the blowing air volume of the air conditioner 13 according to the calculated required air conditioning volume of the general house 1 (step S08). More specifically, the controller 50 increases the air conditioning set temperature during heating operation as the required air conditioning volume increases, and decreases the air conditioning set temperature during cooling operation as the required air conditioning volume increases. For example, when the required air conditioning volume is less than 0°C, the controller 50 sets the air conditioning set temperature to the same value as the room set temperature of the living room 2, and when the required air conditioning volume is 0°C or more but less than 1°C, the controller 50 sets the air conditioning set temperature 1 degree higher than the room set temperature of the living room 2 during heating operation and 1 degree lower than the room set temperature of the living room 2 during cooling operation. Also, when the required air conditioning volume is 1°C or more, the controller 50 sets the air conditioning set temperature 2 degrees higher than the room set temperature of the living room 2 during heating operation and 2 degrees lower than the room set temperature of the living room 2 during cooling operation. As a result, the higher the required air conditioning volume, the higher the output of the air conditioner 13 will be operated, and the room temperature in room 2 will be controlled to the room set temperature more quickly.

Furthermore, the controller 50 controls the blowing air volume of the air conditioner 13 to be larger as the required air conditioning volume increases. In this embodiment, when the required air conditioning volume is less than 0° C., the blowing air volume is set to 500 m ³ /h, when the required air conditioning volume is 0° C. or more and less than 1° C., the blowing air volume is set to 700 ^{m 3} /h, and when the required air conditioning volume is 2° C. or more, the blowing air volume is set to 1200 m ³ /h.

Then, the controller 50 determines the total air volume of the transport fans 3 to be equal to or slightly greater than the blowing air volume of the air conditioner 13 (step S09). In other words, the controller 50 determines the air volume difference between the total air volume of the transport fans 3 and the blowing air volume of the air conditioner 13 to be equal to or less than the reference air volume. In this way, the controller 50 suppresses the power consumption of the transport fans 3.

Next, the controller 50 calculates the required air conditioning volume for each of the first and second floors (step S10). In this embodiment, the average value of the required air conditioning volumes for each of the rooms 2 on the first and second floors is set as the required air conditioning volume for that floor.

Next, the controller 50 specifies the airflow rate of the transport fan 3 on the first floor and the second floor so as to set an airflow rate ratio according to the ratio of the required air conditioning rates. Specifically, when the required air conditioning rate of the second floor is 1° C. and the required air conditioning rate of the first floor is 2° C., and the total airflow rate of the transport fans 3 specified in step S09 is 1200 ^{m 3} /h, the controller 50 specifies the airflow rate of the transport fan 3a on the second floor as 400 m 3 /h and the airflow rate of the transport fan 3b on the first floor as 800 m ³ /h so that the airflow rate ratio between the transport fans 3 is ¹ :2. As a result, even if there is a difference in the required air conditioning rate between the first floor and the second floor, by setting a difference in the airflow rate of the transport fan 3, a difference is created in the amount of heat transported, and it is possible to transport an amount of heat appropriate to the required air conditioning rate on both the first floor and the second floor.

Next, the controller 50 starts humidification control (step S12).

Next, the humidification control will be described with reference to Figures 5 and 6. Figure 5 is a flowchart showing the humidification control operation of the controller. Figure 6 is a diagram showing data on the humidification performance of the humidifier 16.

When humidification control is started, the controller 50 starts a loop for the number of rooms 2 that are the conditioned spaces (step S21). The controller 50 then calculates the required amount of humidification for each of the rooms 2a to 2d (step S22). The controller 50 then ends the loop when calculation of the required amount of humidification for all rooms 2 is completed (step S23).

The processing within the loop of steps S21 to S23 will be explained in more detail using room 2a as an example.

In step S22, the controller 50 determines the required humidification amount for the living room 2a as the humidity difference between the living room humidity obtained from the living room humidity sensor 12a and the living room set humidity set for the living room 2a. In detail, the living room set humidity and the living room humidity are each converted to absolute humidity, and the required humidification amount is determined by subtracting the living room absolute humidity from the living room set absolute humidity. This means that the greater the required humidification amount is as a positive value, the more humidification is required in the living room 2a.

Next, the controller 50 calculates the overall required humidification amount for the general residence 1 based on the required humidification amounts for each of the living rooms 2 (step S24). In this embodiment, the required air conditioning amount for the general residence 1 is calculated based on the average value of the required humidification amounts for each of the living rooms 2.

Next, the controller 50 performs an operation determination of the humidifier 16 (step S25). In detail, if the requested humidification amount of the general residence 1 is positive (YES in step S25), the humidifier 16 is operated and the process proceeds to step S26. If the requested humidification amount of the general residence 1 is 0 or negative (NO in step S25), the rotation speed of the water lift pipe 37 is set to "0" and the humidifier 16 is not operated (step S28), and the humidification control ends.

Then, the controller 50 determines the required rotation speed of the water lift pipe 37 according to the calculated required air conditioning amount of the general house 1, the suction temperature to the humidifier 16, and the total air volume of the transport fan 3 (step S26). In this step S26, the controller 50 sets the required rotation speed to be higher the higher the required humidification amount, the lower the suction temperature, or the smaller the total air volume of the transport fan 3.

In this embodiment, the controller 50 specifies the required number of revolutions based on the humidification performance data of the humidifier 16 shown in FIG. 6. The humidification performance data is data obtained in advance by experiments, and indicates the amount of humidification X that the humidifier 16 produces when humidification is performed under the conditions of the suction temperature T, the rotation speed R of the water lift pipe 37, and the total air volume Q of the conveying fan 3. Here, the amount of humidification X that the humidifier 16 produces corresponds to the amount of moisture contained in the air flowing through the humidifier 16. Due to the characteristics of the humidifier 16, the suction temperature T, the rotation speed R, and the total air volume Q each have a positive correlation with the amount of humidification X. For example, when the total air volumes Q1 and Q2 have a relationship of Q1<Q2, if the temperature is T1 and the rotation speed is R1, the magnitude relationship between the amounts of humidification X1 and X2 is X1<X2.

Next, the method of determining the required rotation speed from the humidification performance data will be described in detail. First, a regression equation for the humidification amount X is created from the table data, and equation (1) in FIG. 6 is obtained. Next, the created regression equation is transformed so that the rotation speed R is on the left side, and equation (2) in FIG. 6 is obtained. The required rotation speed is calculated by calculating the right side of equation (2) with the suction temperature T as the suction temperature from the suction temperature sensor 14, the total air volume Q as the total air volume of the transport fan 3, and the humidification amount X as the required humidification amount X' for the general house 1. Note that the regression equation in equation (1) is a combination of linear terms of the rotation speed R, the suction temperature T, and the total air volume Q, but to improve the accuracy of the regression, any of the rotation speed R, the suction temperature T, and the total air volume Q may include quadratic or higher terms.

Next, if the required rotation speed exceeds a preset upper limit rotation speed, the controller 50 determines the upper limit rotation speed as the rotation speed of the pumping pipe 37, and if the required rotation speed is below a preset lower limit rotation speed, the controller 50 determines the lower limit rotation speed as the rotation speed of the pumping pipe 37 (step S27).

As a result, when the total air volume Q of the transport fan 3 increases while the required humidification amount X' and the suction temperature T are constant, the rotation speed R of the lift pipe 37 is controlled to decrease, so the amount of humidification added to the air transported to each room 2 decreases. Similarly, when the required humidification amount X' and the suction temperature T are constant, the rotation speed R of the lift pipe 37 is controlled to increase, so the amount of humidification added to the air transported to each room 2 increases. In other words, even if the total air volume Q of the transport fan 3 fluctuates and the amount of air transported to each room 2 fluctuates, the amount of humidification added to the air transported to each room 2 is adjusted according to the fluctuation in the total air volume Q of the transport fan 3, so the fluctuation in the amount of moisture supplied to each classroom 2 is suppressed.

If the required rotation speed exceeds the upper limit rotation speed, it means that the amount of humidification that can be output at the upper limit rotation speed is insufficient for the required amount of humidification, and if the required rotation speed is below the lower limit rotation speed, it means that the amount of humidification that can be output at the lower limit rotation speed is excessive for the required amount of humidification.

Next, we will explain how to resolve the excess or deficiency in the amount of humidification in these cases by adjusting the total air volume Q of the transport fan 3 or adjusting the opening degree of the suction port damper 15.

First, referring to FIG. 7, the processing operation when correcting the air volume of the transport fan 3 during humidification control will be described. FIG. 7 is a flowchart showing the transport fan air volume correction process of the controller 50.

First, when the required rotation speed exceeds the upper limit rotation speed (YES in step S31), the controller 50 increases the total air volume Q of the transport fan 3 by a predetermined ratio (for example, 1.1 times) (step S32). When the required rotation speed is equal to or less than the upper limit rotation speed (NO in step S31), it determines whether the required rotation speed is below the lower limit rotation speed (step S33). When the required rotation speed is below the lower limit rotation speed (YES in step S33), it decreases the total air volume Q of the transport fan 3 by a predetermined ratio (for example, 0.9 times) (step S34). In this embodiment, the total air volume Q of the transport fan 3 is set to be equal to the blowing air volume of the air conditioner 13, so that the blowing air volume of the air conditioner 13 is increased or decreased so as to be equal to the total air volume of the transport fan 3 in accordance with the air volume correction of the transport fan 3. By doing so, the inflow air volume to the humidifier 16 can be changed without changing the temperature of the air sucked into the humidifier 16. As a result, when the amount of humidification that can be output at the upper limit rotation speed is lower than the required amount of humidification, the amount of air transported to each room 2 increases. Also, when the amount of humidification that can be output at the lower limit rotation speed is higher than the required amount of humidification, the amount of air transported to each room 2 decreases. The total air volume Q of the transport fan 3 after correction may be determined by solving equation (1) for the total air volume Q and substituting the humidification volume X as the required amount of humidification for the general house 1, the rotation speed R as the upper limit rotation speed, and the suction temperature T as the suction temperature from the suction temperature sensor 14.

Next, the control of the suction port damper 15 will be described with reference to FIG. 8. FIG. 8 is a flowchart showing the suction port damper control operation of the controller 50.

First, the controller 50 determines whether the required rotation speed is below the lower limit rotation speed (step S41). If the required rotation speed is below the lower limit rotation speed (YES in step S41), the opening of the intake damper 15 is reduced, for example to 50% (step S42), to reduce the amount of air flowing into the humidifier 16. On the other hand, if the required rotation speed is equal to or greater than the lower limit rotation speed (NO in step S41), the opening of the intake damper 15 is set to 100% (step S43) so as not to obstruct the air flowing into the humidifier 16. As a result, when the required rotation speed is below the lower limit rotation speed, the opening of the intake damper 15 is reduced, thereby reducing the amount of air flowing into the humidifier 16 and further reducing the amount of humidification to be added to the air transported to each room 2.

As described above, the air conditioning system 20 according to the first embodiment provides the following advantages:

(1) The air conditioning system 20 includes an air-conditioned room 18 configured to be able to introduce air from the outside, an air conditioner 13 installed in the air-conditioned room 18 and adjusting the temperature of the air in the air-conditioned room 18, a humidifier 16 installed in the air-conditioned room 18 and humidifying the air adjusted in temperature by the air conditioner 13, a plurality of transport fans 3 that transport the air in the air-conditioned room 18 to a plurality of rooms 2 independent of the air-conditioned room 18, and a controller 50 that controls the humidifier 16 and the transport fan 3. The humidifier 16 is configured to centrifugally crush and finely grind water pumped by the rotation of the pumping pipe 37, and release the water by incorporating it into the air adjusted in temperature by the air conditioner 13. The controller 50 determines the rotation speed of the water lift pipe 37 (rotary motor 34) based on the required humidification amount for the living room 2, the temperature of the air adjusted by the air conditioner 13, and the air volume of the transport fan 3, and controls the amount of humidification of the air adjusted by the air conditioner 13 according to the determined rotation speed.

As a result, even if the volume of air transported to each room 2 fluctuates, the amount of humidification added to the air transported to each room 2 is adjusted accordingly, suppressing fluctuations in the amount of moisture supplied to each classroom 2 and enabling the humidity of the air in each room 2 to be stably maintained at the target humidity. In other words, an air conditioning system 20 can be created that is capable of controlling humidification using the humidifier 16 in response to fluctuations in the air volume of the transport fan 3.

(2) In the air conditioning system 20, the controller 50 controls the rotation speed of the water lift pipe 37 to decrease when the air volume of the transport fan 3 increases, and controls the rotation speed of the water lift pipe 37 to increase when the air volume of the transport fan 3 decreases. As a result, when the air volume of the transport fan 3 increases, the amount of humidification added to the air transported to each room 2 decreases, and when the air volume of the transport fan 3 decreases, the amount of humidification added to the air transported to each room 2 increases, so that fluctuations in the amount of moisture supplied to each room 2 due to fluctuations in the air volume of the transport fan 3 can be reliably suppressed.

(3) In the air conditioning system 20, the water pump pipe 37 can rotate in a range between the lower limit rotation speed and the upper limit rotation speed, and the controller 50 controls the conveying fan 3 to increase the air volume when the humidification amount that can be output at the upper limit rotation speed is lower than the required humidification amount, and controls the conveying fan 3 to decrease the air volume when the humidification amount that can be output at the lower limit rotation speed is higher than the required humidification amount. As a result, when the humidification amount that can be output at the upper limit rotation speed is lower than the required humidification amount, the amount of air conveyed to each room 2 increases, so that the amount of moisture supplied to each room 2 can be increased. On the other hand, when the humidification amount that can be output at the lower limit rotation speed is higher than the required humidification amount, the amount of air conveyed to each room 2 decreases, so that the amount of moisture supplied to each room 2 can be reduced. In other words, in the air conditioning system 20, the range in which the humidification amount can be adjusted by the humidifier 16 is expanded, and highly accurate humidification adjustment is possible for the air whose temperature has been adjusted by the air conditioner 13.

(4) The air conditioning system 20 further includes an intake damper 15 that adjusts the amount of air flowing into the humidifier 16, and the controller 50 is configured to be able to control the intake damper 15, and is configured to control the intake damper 15 to reduce the amount of air flowing in when the amount of humidification that can be output at the lower limit rotation speed exceeds the required amount of humidification. As a result, when the amount of humidification that can be output at the lower limit rotation speed exceeds the required amount of humidification, the amount of humidification to be added to the air transported to each room 2 is further reduced, and the amount of moisture supplied to each room 2 can be further reduced.

The present invention has been described above based on embodiments. These embodiments are merely examples, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component or each treatment process, and that such modifications are also within the scope of the present invention.

The air conditioning system of the present invention is useful as it is capable of controlling humidification using a humidifier in response to fluctuations in the air volume of the transport fan.

REFERENCE SIGNS LIST 1 General residence 2, 2a, 2b, 2c, 2d Living room 3, 3a, 3b Transport fan 4 Heat exchange fan 5, 5a, 5b, 5c, 5d Living room damper 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 11, 11a, 11b, 11c, 11d Living room temperature sensor 12, 12a, 12b, 12c, 12d Living room humidity sensor 13 Air conditioner 14 Intake temperature sensor 15 Intake port damper 16 Humidifier 17 Dust collection filter 18 Air-conditioned room 20 Air-conditioning system 31 Intake port 32 Outlet 33 Liquid atomization chamber 34 Rotary motor Reference Signs List 35 Rotating shaft 36 Centrifugal fan 37 Water lift pipe 38 Rotating plate 39 Opening 40 Water storage section 41 First eliminator 42 Second eliminator 50 Controller 50a Operation panel 50b Input section 50c Processing section 50d Memory section 50e Timer section 50f Damper opening determination section 50g Air volume determination section 50h Set temperature determination section 50i Output section 50j Display panel 50k Rotation speed determination section

Claims (3)

An air-conditioned room configured to be able to introduce air from the outside;
An air conditioner installed in the air-conditioning room and controlling the temperature of air in the air-conditioning room;
A humidifier that is installed in the air-conditioned room and humidifies the air whose temperature has been adjusted by the air conditioner;
A plurality of transport fans that transport air from the air-conditioning room to a plurality of conditioned spaces that are independent of the air-conditioning room;
A controller for controlling the humidifier and the transport fan;
Equipped with
The humidifier is configured to centrifugally crush the water pumped by the rotation of the lift pipe, to make it fine, and to release it by including it in the air whose temperature is adjusted by the air conditioner;
the controller specifies a rotation speed of the lift pipe based on a required humidification amount of the conditioned space, a temperature of the air temperature-adjusted by the air conditioner, and an air volume of the conveying fan, and controls an amount of humidification of the air temperature-adjusted by the air conditioner based on the specified rotation speed;
The air conditioning system is characterized in that the controller controls the rotation speed of the lift pipe to decrease when the air volume of the conveying fan increases, and controls the rotation speed of the lift pipe to increase when the air volume of the conveying fan decreases . The lift pipe is rotatable within a range between a lower limit rotation speed and an upper limit rotation speed,
The air conditioning system according to claim 1, characterized in that the controller performs control to increase the air volume of the transport fan when the amount of humidification that can be output at the upper limit rotation speed falls below the requested amount of humidification, and performs control to decrease the air volume of the transport fan when the amount of humidification that can be output at the lower limit rotation speed exceeds the requested amount of humidification. The humidifier further includes a damper for adjusting the amount of air flowing into the humidifier.
The air conditioning system according to claim 2, characterized in that the controller is configured to be able to control the damper, and when the amount of humidification that can be output at the lower limit rotation speed exceeds the requested amount of humidification, the controller controls the damper to reduce the amount of incoming air.

Images