Air conditioning system

Abstract

To provide an air conditioning system capable of creating an uneven air-conditioned space in one chamber, and creating an air-conditioned space in which at least one air-conditioned space has performed inactivation or sterilization treatment on bacteria or viruses.SOLUTION: An air conditioning system creates air-conditioned spaces with uneven airflow and temperature and humidity in one room, where at least one air-conditioned space has been performed inactivation or sterilization treatment on bacteria and viruses; suctions air having been stored near a ceiling through a filter with the air conditioning system; collects bacteria, house dust, etc., by the filter; and either before or after an airflow of the filter, blows out air that has been inactivated or sterilized for bacteria and viruses with an ultra-high output ultraviolet lamp into the room.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air conditioning system that creates non-uniform air-conditioned spaces in a room, at least one of which is an air-conditioned space that has been subjected to a sterilization treatment. [Background technology]

[0002] Conventionally, an air conditioning system that creates air-conditioned spaces with different airflow rates in one room based on a four-bed FCU Hoscomfort has been disclosed in Patent Document 1 (JP Patent Publication 2004-360978) and the like. Although the airflow rate in each space is adjusted, humidity is not adjusted, and the system does not inactivate or disinfect bacteria or viruses. In addition, an air conditioning system equipped with an ultraviolet lamp that inactivates and sterilizes various bacteria and viruses in the air is disclosed in Patent Document 2 (JP 2022-168744) and others, but this system focuses on a single air-conditioned space and does not create a non-uniform air-conditioned space within a room. However, ceiling cassette type fan coil units (FCU) and different capacity connection / individual operation multi (for buildings) air conditioners, which can operate multiple indoor units of different capacities individually with one outdoor unit, blow air along the ceiling surface, which has the problem of spreading bacteria, viruses, house dust, etc. floating near the ceiling surface throughout the room. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-360978 A [Patent Document 2] JP 2022-168744 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims at an air conditioning system that creates non-uniform air-conditioned spaces in one room, at least one of which is an inactivated or sterilized air-conditioned space. In addition, ceiling cassette type fan coil units (FCU) and different capacity connection / individual operation multi (for buildings) air conditioners, which can operate multiple indoor units of different capacities individually with one outdoor unit, blow air along the ceiling surface, which has the problem of spreading bacteria, viruses, house dust, etc. floating near the ceiling surface throughout the room, and this product aims to prevent the spread of bacteria, viruses, house dust, etc. floating near the ceiling surface into the room. [Means for solving the problem]

[0005] In order to achieve the above objective, this air conditioning system creates non-uniform air-conditioned spaces within a room, with at least one of the air-conditioned spaces being an air-conditioned space that has been subjected to sterilization treatment; in the air conditioning system, air containing dust and house dust suspended near the ceiling is sucked in from the side of the fan unit through a filter in the casing, which captures and removes the dust and house dust; and either before or after the air flow of the filter, an ultra-high output ultraviolet lamp, in particular a UVC (Ultra Violet C: short wavelength ultraviolet) lamp with high sterilizing power, is placed in the air conditioning system, and the air that has been inactivated and sterilized in this way is blown out into the room from the central panel of the fan unit. This is a modification of the configuration of Patent Document 1, in which a UVC lamp is installed, the inlet is located on the side of the panel, and the air is blown out from the center of the panel. The air from the inlet on the side of the panel is either irradiated by the UVC lamp or exhausted to the outside through a duct. This air conditioning system creates an air-conditioned space with uneven temperature and humidity within a single room, and is equipped with ultraviolet lamps to blow inactivated and sterilized air into the room. Effect of the Invention

[0006] According to the air conditioning system of the present invention, inactivated and sterilized conditioned air is circulated, creating a healthy and optimal living space. Furthermore, in the case of a uniformly air-conditioned space, there will always be a certain number of people who find the space uncomfortable due to personal differences (gender, age, build, etc.) and differences in physical condition. Therefore, if it were possible to provide air-conditioned spaces with diverse conditions by creating areas with different airflow, temperature, humidity, etc. within the same space, problems such as having to wear jackets or lap blankets in the office in summer or feeling hot when returning from going out could be solved by making the office address-free, allowing each person to choose a space that is comfortable for them. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is an overall view of an air conditioning system equipped with a ceiling air conditioning system according to a first embodiment; [Diagram 2] FIG. 2 is a longitudinal side view of the ceiling-mounted air conditioner of FIG. [Diagram 3] The bottom view of Fig. 2 ; [Figure 4] A bottom view showing the relationship between the bottom surface of the ceiling air conditioner in Figures 1 and 3 and the nearby ceiling panel with punched holes. [Diagram 5] FIG. 11 is a block diagram illustrating an air conditioning system according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention is an air conditioning system that creates non-uniform air-conditioned spaces within a room, with at least one of the air-conditioned spaces being an air-conditioned space in which bacteria and viruses have been inactivated or sterilized.It is also an air conditioning system that uses a ceiling cassette type fan coil unit (FCU) or a dual-system AHU to create different air-conditioned spaces within the same space and sterilize air containing bacteria and house dust that has accumulated near the ceiling surface. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. EXAMPLES

[0009] [When creating a non-uniform air-conditioned space using a fan coil unit] In Fig. 1, a ceiling cassette type fan coil unit (FCU) 2 is installed, but as shown in Fig. 3, the method of use is completely opposite to that of a conventional ceiling cassette type fan coil unit (FCU) 2. This is to effectively capture bacteria and house dust floating around the ceiling, as will be described later. That is, the casing 21 of the fan coil unit 2 is attached to the ceiling by a mounting frame 22, and sucks in air floating on the ceiling of the room from the lower suction side surface 23, passes it through a fan and heat exchanger (not shown), and collects the bacteria, house dust, etc. with filter 4, irradiates the passing air with ultraviolet lamps 43 at appropriate places in the passage to inactivate and sterilize the bacteria and viruses, and supplies the air from which the bacteria and viruses have been sterilized to the room from the central panel 24. However, if there is enough space, the bacteria, house dust, etc. may be discharged to the outside through the exhaust duct 25 without being circulated in the room. Here, the ultraviolet lamp 43 used is, for example, a UV-C lamp that generates UV-C. UV-C (ultraviolet C: short wavelength ultraviolet) is ultraviolet light with a wavelength of 180 nm to 280 nm, has the greatest energy among ultraviolet light, has a strong destructive power against living organisms, and has a very high effect of inactivating bacteria and viruses, that is, a sterilization effect. In addition, the ultraviolet lamp 43 is not limited to a UV-C lamp, and may be, for example, a UV-A lamp that generates UV-A (ultraviolet A: long wavelength ultraviolet) or a UV-B lamp that generates UV-B (ultraviolet B: medium wavelength ultraviolet).

[0010] In Example 1 shown in Figures 1 to 4, in Figure 1, a ceiling panel 12 is installed at a distance of 6 cm to 15 cm from the ceiling, and this ceiling panel 12 has punched holes 121. In this Example 1, an acrylic plate is used, and by providing the acrylic plate, it is possible to suppress the falling and diffusion of objects remaining near the ceiling surface, and the attraction performance provided by providing the punched holes in the acrylic plate makes it possible to effectively eliminate highly concentrated polluted air. As shown in Fig. 2, this fan coil unit 2 has a lower suction side 23 provided on the longitudinal side of the air conditioner installed on the ceiling, and in this embodiment, the distance between the ceiling 11 surface and the ceiling panel 12 is about 10 cm, and due to the attraction effect of the punched holes, the air from below effectively collects bacteria and house dust floating on the underside of the ceiling panel 12 in the space between the ceiling 11 and the ceiling panel 12, and this space is connected to the lower suction side 23 of the fan coil unit 2, which is the air conditioner, and sucks in the bacteria and house dust, etc. Although an acrylic plate is used for the ceiling panel 12, other synthetic resins or wood may also be used, as long as it has an attraction effect and can suppress the fall and diffusion of accumulated matter near the ceiling 11 surface. In this way, by installing ceiling panels and ultraviolet lamps, it is possible to collect house dust and inactivate and disinfect bacteria and viruses.

[0011] In the air conditioning system of Example 1, as shown in Figure 1, the air blown out from the central panel of the fan unit into the room is strong, and the air flow from near the ceiling is weak, so the lower part of the fan unit is not suitable for sitting. Therefore, potted plants or the like can be placed in this area, which improves the green view rate (about 13% is optimal in an office environment), improving psychological effects such as a sense of moisture, freshness, and comfort, and also has the effect of reducing stress (noradrenaline) through the phytoncides secreted from potted plants, purifying the air, and reducing visual fatigue. EXAMPLES

[0012] [When creating a non-uniform air-conditioned space with two AHUs] The second embodiment is an air conditioning system as shown in FIG. 5, and is suitable for creating a non-uniform air-conditioned space in one space (room) using a two-system AHU. In Fig. 5, in order to create a comfortable living space that meets environmental standards, one AHU (Air Handling Unit) takes in return air RA from each room and outdoor air OA at the same time, and the first system (right side of Fig. 5) is composed of filter 41, cold water coil 261, hot water coil 271, ultraviolet lamp 431, humidifier 51, blower 61, and supply air outlet 74, in that order, and the second system (left side of Fig. 5) is also composed of filter 42, cold water coil 262, hot water coil 272, ultraviolet lamp 432, humidifier 52, blower 62, and supply air outlet 74, in the same order. Therefore, since the configurations of these two systems are independent, it is possible to create air-conditioned spaces with different temperatures and humidity for supply air SA1 and supply air SA2. The inactivation and sterilization process is the same as in Example 1, with a ceiling panel 12 with punched holes provided at a position about 10 cm away from the ceiling 11, and air containing bacteria, viruses and house dust remaining in the space between the ceiling 11 and the ceiling panel 12 is sucked in from the return air intake port 71 by a fan 63, and returned as required by a damper 82. The amount of outside air OA is adjusted by the damper 81, and the air is taken in from the outside air / return air intake port 73 of the second system AHU. The air containing bacteria and house dust remaining near the ceiling of this room can be returned from damper 82 through outside air / return air intake 73 of the two-system AHU as described above, and after being inactivated and disinfected with ultraviolet lamps (431, 432), it can be supplied (SA1, SA2) to room 10, or damper 82 can be closed and damper 83 opened to exhaust all the return air RA to the outdoors.

[0013] According to the embodiment of the air conditioning system of the present invention, conditioned air that has been inactivated and sterilized of bacteria and viruses is circulated, making it ideal as a healthy living space. Furthermore, in the case of a uniformly air-conditioned space, there will always be a certain number of people who find the space uncomfortable due to personal differences (gender, age, build, etc.) and differences in physical condition. Therefore, if it were possible to provide air-conditioned spaces with diverse conditions by creating areas with different airflow, temperature, humidity, etc. within the same space, problems such as having to wear jackets or lap blankets in the office in summer or feeling hot when returning from going out could be solved by making the office address-free, allowing each person to choose a space that is comfortable for them. [Explanation of symbols]

[0014] 1...air conditioning system, 10...living room, 11...ceiling, 12...ceiling panel, 121··Punched holes, 14··People, 15··Houseplants 2··Fan coil unit (FCU), 21··Casing, 22··Mounting frame, 23...Lower suction side, 24...Central panel, 241...Blowout hole, 25··Exhaust duct, 261, 262··Cold water coil, 271, 272··Hot water coil, 3...2 system AHU, 43,431,432 Ultraviolet lamps, 51,52·humidifier 61, 62, 63··Blower (fan), 71··Return air intake port, 721, 722··Intake air outlet, 73··Outdoor air·return air intake port, 74 Air supply outlet 8 damper, 81 outside air damper, 82 return air damper, 83 exhaust damper

Claims

1. An air conditioning system that creates non-uniform air-conditioned spaces in one room, at least one of which is an air-conditioned space that has been subjected to a sterilization treatment.

2. The air conditioning system described in claim 1, characterized in that the air that has accumulated near the ceiling in the air conditioning system is sucked in from the side of the fan unit through a filter in the casing, the filter captures and removes bacteria and viruses, and the treated air is blown out into the room as supply air from the central panel of the fan unit.

3. 3. The air conditioning system according to claim 2, wherein the air accumulated near the ceiling is circulated by an acrylic plate having a large number of punched holes at a position 6 to 15 cm away from the ceiling surface, which is connected to the side of the fan unit.

4. 3. The air conditioning system according to claim 2, further comprising an ultra-high output ultraviolet lamp disposed either before or after the air flow of said filter.

5. 5. The air conditioning system according to claim 4, wherein the ultra-high output ultraviolet lamp is a UV-C lamp.

6. 2. The air conditioning system according to claim 1, wherein a non-uniform air-conditioned space is created in the same space by using two AHUs.

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