Building air conditioning system

Abstract

The present invention provides vertical ducts and air inlets for a building's air conditioning system, as well as an air conditioning system using these components, which can maintain the air throughout the building at an appropriate temperature and humidity while keeping it clean. [Solution] In a building air conditioning system that maintains a suitable temperature and humidity in all spaces within a building, including the living space on the lower floor, the common space on the lower floor, the common space on the upper floor, other partitioned spaces on the lower floor, and other partitioned spaces on the upper floor, a vertical duct 44 is provided vertically between the living space on the lower floor and one of the common space on the upper floor and other partitioned spaces on the upper floor in order to fluidly connect the living space on the lower floor and one of the common space on the upper floor, and LED lighting 101 is provided on the wall surface inside the vertical duct 44, and a photocatalyst 102 is sprayed onto the wall surface.

Description

TECHNICAL FIELD

[0001] The present invention relates to a building air conditioning system that manages and controls the air in the entire building in a uniform state, and more particularly to a building air conditioning system provided with a photocatalyst effective for air purification.

BACKGROUND ART

[0002] The present inventor has developed a building air conditioning system that manages and controls the air in the entire building in a uniform state (see Patent Document 1 below). That is, the air conditioning system for the building is a building air conditioning system that maintains all spaces including the living space on the lower floor, the common space on the lower floor, the common space on the upper floor, the other partitioned spaces on the lower floor and the other partitioned spaces on the upper floor in the building at appropriate temperature and humidity, and comprises a first air conditioner installed in the living space on the lower floor, a second air conditioner installed in any one position of the common space on the upper floor and the other partitioned spaces on the upper floor, and a second air conditioner installed in any one position of the common space on the upper floor and the other partitioned spaces on the upper floor. In order to fluidly communicate the living space on the lower floor with any one of the common space on the upper floor and the other partitioned spaces on the upper floor, a vertical duct is provided vertically between the living space on the lower floor and any one of the common space on the upper floor and the other partitioned spaces on the upper floor, an axial fan is provided in the vertical portion of the vertical duct, and in order to fluidly communicate the living space on the lower floor, the common space on the lower floor and the common space on the upper floor with the other partitioned spaces on the lower floor and the other partitioned spaces on the upper floor, an air path fan is horizontally provided on the wall of the other partitioned spaces on the lower floor and the wall of the other partitioned spaces on the upper floor (see Claim 1 of Patent Document 1).

PRIOR ART DOCUMENTS

PATENT DOCUMENTS

[0003]

PATENT DOCUMENT 1

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0004] By the way, within buildings, it is necessary to maintain cleaner air, for example, as a measure against infectious diseases.

[0005] This invention was made in view of these circumstances and provides a building air conditioning system that can maintain the air throughout the building at an appropriate temperature and humidity while keeping it clean. [Means for solving the problem]

[0006] As a means to solve the above problem, the present invention according to claim 1 is a building air conditioning system that maintains all spaces in a building, including the living space on the lower floor, the common space on the lower floor, the common space on the upper floor, other partitioned spaces on the lower floor, and other partitioned spaces on the upper floor, at an appropriate temperature and humidity, comprising: a vertical duct provided vertically between the living space on the lower floor, the common space on the upper floor, and one of the other partitioned spaces on the upper floor, with an axial flow fan provided in the vertical portion, in order to fluidly communicate the living space on the lower floor, the common space on the upper floor, and one of the other partitioned spaces on the upper floor, and the living space on the lower floor The building air conditioning system comprises a first air conditioner installed, a second air conditioner installed in either the shared space on the upper floor or one of the other partitioned spaces on the upper floor, and air pass fans horizontally installed in the walls of the other partitioned spaces on the lower floor and the other partitioned spaces on the upper floor to fluidly connect the living space on the lower floor, the shared space on the lower floor and the shared space on the upper floor, the other partitioned spaces on the lower floor and the other partitioned spaces on the upper floor, and is configured to keep the air throughout the building clean by providing LED lighting on the wall surface inside the vertical duct and spraying a photocatalyst on the wall surface.

[0007] Furthermore, the invention according to claim 2 is a building air conditioning system for maintaining an appropriate temperature and humidity in all spaces within a building, including the living space on the lower floor, the common space on the lower floor, the common space on the upper floor, other partitioned spaces on the lower floor, and other partitioned spaces on the upper floor, comprising: a vertical duct provided vertically between the living space on the lower floor, the common space on the upper floor, and one of the other partitioned spaces on the upper floor, with an axial flow fan provided in the vertical portion, for fluid communication between the living space on the lower floor, the common space on the upper floor, and one of the other partitioned spaces on the upper floor; and an air intake provided in the outer wall of the building for taking in outside air into the building, and The building's air conditioning system comprises a first air conditioner installed in the living space on the lower floor, a second air conditioner installed in either the common space on the upper floor or one of the other partitioned spaces on the upper floor, and an air pass fan horizontally installed in the wall of the other partitioned space on the lower floor and the wall of the other partitioned space on the upper floor to fluidly connect the living space on the lower floor, the common space on the lower floor and the common space on the upper floor, the other partitioned space on the lower floor and the other partitioned space on the upper floor, and is configured to keep the air throughout the building clean by providing LED lighting on the wall surface inside the air intake and spraying a photocatalyst on the wall surface. [Effects of the Invention]

[0008] According to the building air conditioning system incorporating the photocatalyst of this invention, by installing LED lighting and the sprayed photocatalyst in the path that properly circulates the air inside the building, the air throughout the building can be kept clean. [Brief explanation of the drawing]

[0009] [Figure 1] This is a conceptual cross-sectional view of a building illustrating a preferred overall configuration of a building air conditioning system equipped with vertical ducts and air inlets according to the present invention. [Figure 2] This is a conceptual longitudinal cross-sectional view of a building illustrating another preferred embodiment of the overall configuration of a building air conditioning system comprising vertical ducts and air inlets according to the present invention. [Figure 3] Figure 1 is a schematic diagram showing an example of an intake and exhaust vent installed in the ceiling of the living space on the first floor. [Figure 4] This is a schematic diagram showing an example of an intake and exhaust vent installed on the wall of the shared space on the second floor in Figure 1. [Figure 5] Figure 1 is a schematic diagram showing an example of an axial flow fan located within a storage area in the shared space on the second floor. [Figure 6] Figure 1 is a schematic diagram showing an example of an air intake and exhaust port for an air pass fan installed on the wall of the WC (toilet) on the first floor. [Figure 7] This is a longitudinal cross-sectional view showing a preferred embodiment of the vertical duct of the present invention. [Figure 8] This is a view of the vertical duct of the present invention from the bottom. [Figure 9] This is a longitudinal cross-sectional view showing a preferred embodiment of the air intake of the present invention. [Figure 10] This is a view of the air intake of the present invention from the front. [Figure 11] This is a block diagram showing a preferred embodiment of a sensor and control unit for a building air conditioning system equipped with a vertical duct and an air intake according to the present invention. [Modes for carrying out the invention]

[0010] A preferred embodiment of the building air conditioning system of the present invention will be described below with reference to the drawings.

[0011] (Design philosophy of air conditioning systems) The design concept of the air conditioning system in this embodiment is as follows: First, for example, the air in the LDK (living-dining-kitchen), which is the center of daily life, is adjusted to an appropriate temperature. By circulating this air throughout the building, temperature changes in the corners and walls of each room are eliminated, and the air throughout the building can be controlled to maintain a uniform temperature. In this case, the LDK functions as either a heated room or a cooled room.

[0012] It is impossible to circulate the entire air within a building using conventional ducts due to air volume constraints. In the building air conditioning system of the present invention, in addition to the axial fan in the vertical duct, an air path fan is installed in each room to significantly circulate the air.

[0013] In Japanese buildings with thin exterior walls, even if local heating is operated, temperature drops occur at the walls, window surfaces, and peripheral portions inside the building, making it impossible to uniformly heat the entire interior of the building. In the air conditioning system of the present invention, air is circulated extensively throughout all spaces in the building, including small spaces such as restrooms, so that the entire interior of the building can be uniformly heated.

[0014] Furthermore, by taking humidity related to temperature into consideration, for example, operating a humidifier in winter and a dehumidifier in summer, and extensively circulating the humidity-adjusted air inside the building, the overall humidity inside the building can be uniformly managed and controlled at, for example, an ideal 40% to 60%. Even highly insulated houses in Western countries do not have the function of uniformly adjusting the humidity throughout the building interior.

[0015] By making the temperature uniform throughout the building interior, the temperature on the inner wall surfaces and glass surfaces is less likely to drop. Accordingly, condensation is less likely to occur, and mold and the like are also less likely to form. By achieving body-friendly temperature and humidity, it is possible to create a space that is gentle to human health.

[0016] (Basic overall configuration of the air conditioning system) Figure 1 is a vertical cross-sectional view of a building conceptually showing a preferred embodiment of the overall configuration of the building air conditioning system provided with a vertical duct and air supply ports according to the present invention.

[0017] The air conditioning system 1 of the present embodiment maintains all spaces in the building, including the lower-floor living spaces, lower-floor common spaces, upper-floor common spaces, other partitioned spaces on the lower floor, and other partitioned spaces on the upper floor, at appropriate temperature and humidity. The upper floor and the lower floor are connected with a minimal number of ducts, and air blowers are appropriately arranged inside the ducts. By delivering a large volume of air to every corner of each room and space, and extensively circulating the air, each room and space throughout the entire building interior is managed and controlled at appropriate temperature and humidity.

[0018] The building 2 of this embodiment can be a building with two or more stories, and in Figure 1, the lower floor is the 1st floor and the upper floor is the 2nd floor. An example of the living space on the lower floor is the LDK 11 on the 1st floor in Figure 1. An example of a shared space on the lower floor is the hall 12 on the 1st floor in Figure 1. An example of a shared space on the upper floor is the hall 21 on the 2nd floor in Figure 1. An example of another partitioned space on the lower floor is the WC (toilet) 13 on the 1st floor in Figure 1. An example of another partitioned space on the upper floor is the Western-style room 22 and bedroom 23 on the 2nd floor in Figure 1. The following explanation will follow the example in Figure 1.

[0019] First, it is preferable that building 2 has high airtightness and thermal insulation. In Figure 1, an insulating layer 41 is formed to surround the entire building. For example, by surrounding the entire building 2 with an insulating material that has high airtightness and high thermal insulation properties, it can be formed as a single insulating layer 41. The airtightness of building 2 is C-value = 1.0 cm. 2 / m 2 Below, the UA value = 0.6 W / m 2 It is preferable to keep the value below K.

[0020] An air conditioner 42 is installed in the LDK 11 on the first floor as the first air conditioning unit. An air conditioner 43 is installed in the hall 21 on the second floor as the second air conditioning unit. The first and second air conditioning units only need to have at least heating and cooling functions. The first and second air conditioning units may also be separate units having heating and cooling functions separately. The installation locations of the air conditioners 42 and 43 are not particularly limited, but it is preferable that the installation location of the air conditioner 43 in the hall 21 on the second floor be in a location that takes airflow into consideration and is easy to maintain. Furthermore, there are no particular limitations on which spaces the air conditioners are installed in and how many spaces the air conditioners are installed in, but it is preferable to install one air conditioner in one of the spaces on the first floor and one air conditioner in one of the spaces on the second floor.

[0021] A vertical duct 44 is provided between the LDK 11 on the first floor and the hall 21 on the second floor to provide fluidic communication between them. The intake and exhaust port 45 on the LDK 11 side of the vertical duct 44 is provided in the ceiling 61 of the LDK 11 on the first floor. Figure 3 is a schematic diagram showing an example of an intake and exhaust port 45 installed in the ceiling 61 of the LDK 11 on the first floor. The intake and exhaust port 46 on the hall 21 side of the vertical duct 44 is provided in the wall 62 of the hall 21 on the second floor. Figure 4 is a schematic diagram showing an example of an intake and exhaust port 46 installed in the wall 62 of the hall 21 on the second floor. There are no particular limitations on which lower floor space and which upper floor space the vertical duct 44 provides fluidic communication between, but it is preferable to provide the vertical duct 44 so as to connect one of the spaces on the first floor where the air conditioner 42 is installed with one of the spaces on the second floor where the air conditioner 43 is installed.

[0022] An axial flow fan 51 is installed in the vertical portion of the vertical duct 44. For example, a counter-arrow fan can be used as the axial flow fan 51. The axial flow fan 51 is installed in a position where the living room / dining room / kitchen 11 on the first floor and the hall 21 on the second floor are in a straight line. The installation position of the axial flow fan 51 in the vertical portion of the vertical duct 44 is not particularly limited, but considering the ease of installation and maintenance, the axial flow fan 51 can be located, for example, inside the storage compartment 68 in the hall 21 on the second floor. Figure 5 is a schematic diagram showing the axial flow fan 51 located inside the storage compartment in the hall 21 on the second floor. The figure shows the state with the cover 68 that closes the opening 69 removed. Installation and maintenance of the axial flow fan 51 can be performed from the opening 69. The vertical duct 44 and the axial flow fan 51 are covered with insulation material 91.

[0023] To circulate air throughout the entire building 2, air-pass fans are installed, for example, in each living room, bathroom, and toilet. In this embodiment shown in Figure 1, air-pass fans 52, 53, and 54 are horizontally installed on the wall 63 of the 1st-floor WC (toilet) 13, the wall 64 of the 2nd-floor Western-style room 22, and the wall 65 of the 2nd-floor bedroom 23, respectively, to fluidly connect the LDK 11 on the 1st floor, the hall 12 on the 1st floor, and the hall 21 on the 2nd floor with the WC (toilet) 13 on the 1st floor, the Western-style room 22 on the 2nd floor, and the bedroom 23 on the 2nd floor. Figure 6 is a schematic diagram showing an example of an intake and exhaust port 71 of an air-pass fan 52 installed on the wall 63 of the WC (toilet) 13 on the 1st floor. The mounting ducts (not shown) for the air-pass fans 52, 53, and 54 are made of, for example, steel pipes to comply with the ministerial ordinance's semi-fire-resistant specifications.

[0024] The air pass fan 52 is typically configured to send air from the living room / dining room / kitchen (LDK) 11 and the hall 12 on the first floor to the toilet (WC) 13 on the first floor. The air pass fan 53 is typically configured to send air from the hall 21 on the second floor to the Western-style room 22 on the second floor. The air pass fan 54 is typically configured to send air from the hall 21 on the second floor to the bedroom 23 on the second floor.

[0025] The exterior wall 90 of building 2 is provided with air intake vents 91, 92, and 93 for bringing outside air into building 2. In Figure 1, air intake vents 91, 92, and 93 are provided in the LDK 11 on the first floor, the Western-style room 22 on the second floor, and the bedroom 23 on the second floor, respectively, but the space and number of air intake vents are not particularly limited.

[0026] (Configuration within the vertical duct) As shown in Figures 7 and 8, LED lighting 101 is installed on the wall surface inside the vertical duct 44, and photocatalyst 102 is sprayed onto the wall surface. The light from the LED lighting 101 causes the photocatalyst 102 to function as a catalyst. The LED lighting 101 is not particularly limited, but for example, tape-shaped LEDs can be attached to the wall surface. The LED lighting 101 is not particularly limited, but for example, it is preferably about 320 lm. The photocatalyst 102 is not particularly limited, but for example, titanium dioxide can be used. 103 is a power supply unit that supplies power to the axial flow fan 51 and the LED lighting 101.

[0027] (Configuration inside the air intake) As shown in Figures 9 and 10, LED lighting 104 is installed on the walls inside the air intakes 91, 92, and 93, and photocatalyst 105 is sprayed onto the walls. The light from the LED lighting 104 causes the photocatalyst 105 to function as a catalyst. The LED lighting 104 is not particularly limited, but for example, tape-shaped LEDs can be used and attached to the walls. The LED lighting 104 is not particularly limited, but for example, it is preferably about 320 lm. The photocatalyst 105 is not particularly limited, but for example, titanium dioxide can be used.

[0028] (Airflow within the building) The air in the LDK 11 on the first floor is regulated by an air conditioner 42 installed in the LDK 11 on the first floor (arrow D11). This regulated air flows to the hall 21 on the second floor through a vertical duct 44 via the action of an axial flow fan 51 (arrows D12, D13). The regulated air then passes through the hall 12 on the first floor and flows to the WC (toilet) 13 on the first floor via an air pass fan 52 (arrows A11, A12). The air that flows into the WC (toilet) 13 on the first floor reaches every corner of the WC (toilet) 13 on the first floor (arrows A13, A14). In addition, outside air is drawn into the LDK 11 on the first floor through an air intake 91 (arrow A21).

[0029] Air sent from the LDK 11 on the first floor to the hall 21 on the second floor, and air regulated by the air conditioner 43 installed in the hall 21 on the second floor (arrow D14), flows from the hall 21 on the second floor to the Western-style room 22 on the second floor via the air pass fan 53 (arrows A15, A16), and then flows from the hall 21 on the second floor to the bedroom 23 on the second floor via the air pass fan 54 (arrow A19). The air that flows into the Western-style room 22 and the bedroom 23 on the second floor reaches every corner of the rooms (arrows A17, A18). In addition, outside air is drawn into the Western-style room 22 and the bedroom 23 on the second floor from the air intake vents 92 and 93, respectively (arrows A22, A23).

[0030] As described above, an airflow is formed between the LDK11 on the first floor, the hall 12 on the first floor, the WC (toilet)13 on the first floor, the hall 21 on the second floor, the Western-style room 22 on the second floor, and the bedroom 23 on the second floor, allowing the air throughout the entire building 2 to circulate uniformly. Furthermore, by installing photocatalysts 102 and 105 in the airflow path and activating them as catalysts with LED lighting 101 and 104, the air throughout the entire building 2 can be kept clean.

[0031] (Axial flow fan reversed) The airflow described above can be changed by switching the rotation direction of the axial fan 51 from forward to reverse, or from reverse to forward. The switching between forward and reverse can be done manually, for example, by a control switch (not shown), or it can be done automatically by a control unit 81, which will be described later.

[0032] Figure 2 is a conceptual longitudinal cross-sectional view of a building showing another preferred overall configuration of the air conditioning system 1 of the present invention. The basic configuration of the air conditioning system 1 is the same as in Figure 1, with only the direction of airflow through the vertical duct 44 by the axial flow fan 51 being different. In Figure 2, by reversing the rotation direction of the axial flow fan 51 compared to Figure 1, air from the second-floor hall 21 flows to the first-floor living room / dining room / kitchen 11 (arrows D23, D22).

[0033] The direction of airflow through the vertical duct 44 is not particularly limited, but for example, when the air conditioners 42 and 43 are operating as cooling units, the axial flow fan 51 can be set to direct airflow from the LDK 11 on the first floor to the hall 21 on the second floor, as shown in Figure 1, and when the air conditioners 42 and 43 are operating as heating units, the axial flow fan 51 can be set to direct airflow from the hall 21 on the second floor to the LDK 11 on the first floor, as shown in Figure 2.

[0034] The direction of airflow through the air path fans 52, 53, and 54 is the same in Figure 1 and Figure 2, but the rotation direction of the air path fans 52, 53, and 54 may also be switchable between forward and reverse rotation manually or automatically, similar to the case of the axial flow fan 51.

[0035] It is preferable to keep the air conditioners 42 and 43 running continuously throughout the year. By doing so, all spaces in the living room / dining room / kitchen 11 on the first floor, the hall 12 on the first floor, the toilet 13 on the first floor, the hall 21 on the second floor, the Western-style room 22 on the second floor, and the bedroom 23 on the second floor can be kept at a comfortable temperature and humidity throughout the year.

[0036] (Attic storage) If there is a partitioned space on the floor above the second-floor hall 21, such as an attic storage space 31, a vertical duct 47 can be provided between the second-floor hall 21 and the attic storage space 31, and an axial fan 55 can be installed in the vertical portion of the vertical duct 47. In Figure 1, intake and exhaust ports 72 and 73 for the vertical duct 47 are provided in the ceiling 66 of the second-floor hall 21 and in the wall 67 of the attic storage space 31. It is preferable that the vertical duct 47 be provided so as to connect one of the spaces on the second floor where the air conditioner 43 is installed with the partitioned space on the floor above.

[0037] The axial flow fan 55 can be, for example, a counter-arrow fan. The axial flow fan 55 is installed in a position where the second-floor hall 21 and the attic storage 31 are in a straight line. The installation position of the axial flow fan 55 in the vertical portion of the vertical duct 47 is not particularly limited, but considering the ease of installation and maintenance, the axial flow fan 55 can be positioned, for example, inside the storage space of the attic storage 31.

[0038] Typically, an axial flow fan 55 is used to direct airflow from the second-floor hall 21 into the attic storage area 31, as shown in Figures 1 and 2 (arrows D15, D16). The rotation direction of the axial flow fan 55 may also be switchable between forward and reverse rotation manually or automatically, similar to the case of the axial flow fan 51.

[0039] The configuration inside the vertical duct 47 can be the same as the configuration inside the vertical duct 44, with LED lighting 101 provided on the wall surface inside the vertical duct 47 and photocatalyst 102 sprayed onto the wall surface (Figures 7 and 8). The light from the LED lighting 101 causes the photocatalyst 102 to function as a catalyst. The LED lighting 101 is not particularly limited, but for example, tape-shaped LEDs can be used and attached to the wall surface. The LED lighting 101 is not particularly limited, but for example, it is preferably about 320 lm. The photocatalyst 102 is not particularly limited, but for example, titanium dioxide can be used. 103 is a power supply unit that supplies power to the axial flow fan 55 and the LED lighting 101.

[0040] (Underfloor heating system) A floor heating system 48 may be installed in at least the LDK 11 on the first floor. The air in the LDK 11 on the first floor can be heated and the temperature controlled using at least one of the air conditioner 42 and the floor heating system 48. The floor heating system 48 can be a conventional type, whether it is a hot water type or an electric type.

[0041] (Humidity control) A humidifier and a dehumidifier can be installed in at least one location within the building to adjust humidity. For example, a humidifying air purifier 49 can be used as the humidifier and dehumidifier. In Figures 1 and 2, a humidifying air purifier 49 is placed on the floor of the second-floor hall 21. By circulating the air whose humidity has been adjusted in the second-floor hall 21 throughout the building 2 using the air conditioning system 1 described above, the entire building 2 can be uniformly managed and controlled at a constant humidity level. There are no particular limitations on the space and number of humidifying air purifiers 49 that can be installed, but for example, it is effective to install a humidifying air purifier 49 in a space where an air conditioner is installed.

[0042] (Wind speed inside the building) When the wind speed inside building 2 is in the range of 0.15 to 0.25 m / sec, residents will not feel uncomfortable. Therefore, it is preferable to circulate the air inside building 2 to a large extent while keeping the wind speed inside building 2 in the range of 0.15 to 0.25 m / sec. By circulating the air with the air conditioning system 1 of this embodiment, the wind speed inside building 2 can be controlled to the range of 0.15 to 0.25 m / sec.

[0043] (Control Unit) To automatically control the temperature, humidity, and wind speed inside building 2, a control unit 81 may be provided to control the axial flow fans 51, 55, air path fans 52, 53, 54, air conditioners 42, 43, and humidifying air purifier 49 that constitute the air conditioning system 1 of this embodiment. Figure 11 is a block diagram showing a preferred embodiment of the sensor and control unit 81. For example, in the case of axial flow fans 51, 55 and air path fans 52, 53, 54, the fan control means 84 is configured to control the on / off, rotation direction, and airflow of the axial flow fans 51, 55 and air path fans 52, 53, 54 according to the air conditions inside building 2. In the case of air conditioners 42, 43, the temperature control means 85 is configured to control the on / off, heating / cooling switching, and airflow of the air conditioners 42, 43 according to the temperature inside building 2. In the case of the humidifying air purifier 49, the humidity control means 86 is configured to control the on / off, switching between humidification and dehumidification, and airflow of the humidifying air purifier 49 according to the humidity inside the building 2. For measuring airflow, temperature, and humidity, for example, an airflow sensor 87, a temperature sensor 88, and a humidity sensor 89 can be used, respectively. Each sensor 87, 88, and 89 may be installed in a predetermined space, for example, considering the necessity and effectiveness of the measurement. The temperature control unit 81 may have at least a CPU 82 (central processing unit) and a storage device 83, and will execute each of the control means 84, 85, and 86 based on the input from each of the sensors 87, 88, and 89. Each of the control means 84, 85, and 86 may be configured to have a CPU and a storage device.

[0044] (Demonstration test) A demonstration test was conducted using a building equipped with the vertical duct and air intake vents of the air conditioning system of this invention. In the demonstration test, the area around the air intake and exhaust vents of the vertical duct was wiped with a cotton swab, and the amount of ATP contained in the organic matter was measured using an ATP (adenosine triphosphate) tester in terms of relative light unit (RLU).

[0045] As shown in Table 1, in buildings equipped with the vertical duct and air intake of the present invention, where air is circulated and maintained in a steady state (with photocatalyst), the amount of ATP was confirmed to be 5% or less compared to buildings without the vertical duct and air intake of the present invention (without photocatalyst).

[0046] [Table 1]

[0047] Although the present invention has been described above based on embodiments, the present invention can be implemented in various modified forms. For example, the building layout is not limited to those shown in Figures 1 and 2. The number and location of vertical ducts, air inlets, and air conditioners can be appropriately set to suit the layout of the building in which the air conditioning system is installed. Furthermore, even if only one of the vertical ducts and air inlets of the present invention is used, the effect of keeping the air throughout the building clean can be achieved. When using only the vertical ducts of the present invention, air inlets may or may not be provided. [Explanation of Symbols]

[0048] 1. Air conditioning system 2 buildings 11. Living room, dining room, and kitchen (LDK) on the first floor (living space on the lower floor) 12. The hall on the first floor (a shared space on the lower floor) 13 WC (Toilet) (Other partitioned space on the lower floor) 21. The hall on the second floor (a shared space on the upper floor) 22. Western-style room on the second floor (other partitioned spaces on the upper floor) 23. Bedroom on the second floor (other partitioned spaces on the upper floor) 31. Attic storage (a partitioned space on an even higher floor) 41. Insulation layer 42. Air conditioner (first air conditioning unit) 43. Air conditioner (second air conditioning unit) 44,47 Vertical duct 48. Underfloor heating system 49. Humidifying air purifier (humidifier and dehumidifier) 51, 55 Axial flow fan 52, 53, 54 Air pass fan 81 Control Unit 84 Fan control means 85 Temperature control means 86 Humidity control means 87 Airflow sensor 88 Temperature Sensor 89 Humidity Sensor 90 Exterior Wall 91,92,93 Air supply port 101,104 LED lighting 102,105 Photocatalyst

Claims

1. An air conditioning system for a building that maintains a suitable temperature and humidity in all spaces within the building, including the living spaces on the lower floors, the common spaces on the lower floors, the common spaces on the upper floors, other partitioned spaces on the lower floors, and other partitioned spaces on the upper floors. To fluidly connect the living space on the lower floor with the common space on the upper floor and one of the other partitioned spaces on the upper floor, a vertical duct is provided vertically between the living space on the lower floor and one of the common space on the upper floor and one of the other partitioned spaces on the upper floor, with an axial flow fan installed in the vertical portion. The first air conditioner installed in the living space on the lower floor, A second air conditioner is installed in either the shared space on the upper floor or one of the other partitioned spaces on the upper floor, To fluidly connect the living space on the lower floor, the common space on the lower floor, and the common space on the upper floor with other partitioned spaces on the lower floor and other partitioned spaces on the upper floor, the system includes air-pass fans horizontally installed in the walls of the other partitioned spaces on the lower floor and the walls of the other partitioned spaces on the upper floor. An air conditioning system for a building, characterized in that LED lighting is provided on the wall surface inside the vertical duct, and a photocatalyst is sprayed onto the wall surface, thereby maintaining a clean air condition throughout the building.

2. An air conditioning system for a building that maintains a suitable temperature and humidity in all spaces within the building, including the living spaces on the lower floors, the common spaces on the lower floors, the common spaces on the upper floors, other partitioned spaces on the lower floors, and other partitioned spaces on the upper floors. To fluidly connect the living space on the lower floor with the common space on the upper floor and one of the other partitioned spaces on the upper floor, a vertical duct is provided vertically between the living space on the lower floor and one of the common space on the upper floor and one of the other partitioned spaces on the upper floor, with an axial flow fan installed in the vertical portion. In order to bring outside air into the building, an air intake is provided in the outer wall of the building, The first air conditioner installed in the living space on the lower floor, A second air conditioner is installed in either the shared space on the upper floor or one of the other partitioned spaces on the upper floor, To fluidly connect the living space on the lower floor, the common space on the lower floor, and the common space on the upper floor with other partitioned spaces on the lower floor and other partitioned spaces on the upper floor, the system includes air-pass fans horizontally installed in the walls of the other partitioned spaces on the lower floor and the walls of the other partitioned spaces on the upper floor. An air conditioning system for a building, characterized in that LED lighting is provided on the wall surface inside the air intake, and a photocatalyst is sprayed onto the wall surface, thereby maintaining a clean air condition throughout the building.

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