Space Purification System

Abstract

To provide a space purification system capable of stably supplying hypochlorous acid when incorporating hypochlorous acid into air passing through a gas-liquid contact part.SOLUTION: A space purification system 1 includes: a hypochlorous acid water supply device 2 that supplies hypochlorous acid water; a gas-liquid contact part 26 that drops and vaporizes the hypochlorous acid water supplied from the hypochlorous acid water supply device 2; and a blower 29 that releases air passing through the gas-liquid contact part 26 into an objective space S. The gas-liquid contact part 26 is configured to prevent reaction between materials constituting the gas-liquid contact part 26 and the hypochlorous acid water.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a space purification system that purifies a space with hypochlorous acid vaporized from a humidifying element impregnated with disinfecting water containing hypochlorous acid. [Background technology]

[0002] Utilizing disinfectant water containing hypochlorous acid as a means of sterilization and deodorization is an effective means, and is used in a variety of situations, such as directly using the disinfectant water for cleaning, etc., or disinfecting spaces by volatilization spray, etc. For example, as shown in Patent Document 1, an air supply device (space purification system) has been proposed in which disinfectant water is dripped onto a humidifying element (air-liquid contact portion) to disinfect the air that has passed through the humidifying element. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-67245 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional air supply devices, hypochlorous acid water reacts with components contained in the humidifying element and is consumed, which can reduce the amount of hypochlorous acid that evaporates into the air, resulting in the problem that hypochlorous acid is not released into the target space at the desired concentration.

[0005] Therefore, the present invention solves the above-mentioned conventional problems, and aims to provide a space purification system that can stably impart hypochlorous acid when hypochlorous acid is added to air flowing through a gas-liquid contact section. [Means for solving the problem]

[0006] To achieve this object, the space purification system according to the present invention includes a hypochlorous acid water supply device that supplies hypochlorous acid water, a gas-liquid contact section that drops and vaporizes the hypochlorous acid water supplied from the hypochlorous acid water supply device, and a blower that releases air that ventilates the gas-liquid contact section into the target space. The gas-liquid contact section is configured so that the reaction between the material that constitutes the gas-liquid contact section and the hypochlorous acid water is suppressed. A combination of multiple humidifying materials having nonwoven fabrics made of polyester fibers or polyethylene fibers. Consists of The antibacterial or antifungal agent contains an isothiazolinone-based antibacterial or antifungal agent, and the humidifying materials are bonded together by thermal welding. These features will achieve the intended purpose. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a space purification system that can stably impart hypochlorous acid when hypochlorous acid is added to air flowing through a gas-liquid contact section. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of a space purification system according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing the configuration of the gas-liquid contact section. DETAILED DESCRIPTION OF THE INVENTION

[0009] The space purification system according to the present invention includes a hypochlorous acid water supply device that supplies hypochlorous acid water, a gas-liquid contact unit that drips and vaporizes the hypochlorous acid water supplied from the hypochlorous acid water supply device, and a blower that discharges air that passes through the gas-liquid contact unit into a target space. The gas-liquid contact unit is configured to suppress reaction between the material that constitutes the gas-liquid contact unit and the hypochlorous acid water.

[0010] With this configuration, the consumption of hypochlorous acid water caused by the material constituting the gas-liquid contact section is suppressed, so the concentration of hypochlorous acid water that comes into contact with the air flowing through the gas-liquid contact section can be stabilized. As a result, hypochlorous acid can be added to the air flowing through the gas-liquid contact section at a set concentration. In other words, when hypochlorous acid is added to the air flowing through the gas-liquid contact section, a space purification system can be provided that can stably add hypochlorous acid.

[0011] In addition, in the space purification system according to the present invention, the gas-liquid contact unit is preferably constructed by combining multiple humidifying materials having nonwoven fabrics made of polyester fiber or polyethylene fiber, and the humidifying materials are preferably bonded to each other by thermal welding. This eliminates the need to use adhesive when combining the multiple humidifying materials, reduces the consumption of hypochlorous acid water due to reaction with the adhesive, and allows a set concentration of hypochlorous acid to be stably applied to the air released from the gas-liquid contact unit.

[0012] In addition, in the space purification system according to the present invention, the gas-liquid contact section preferably contains an isothiazolinone-based antibacterial or antifungal agent as the antibacterial or antifungal agent. This can suppress the generation of bacteria or mold in the gas-liquid contact section while reducing the consumption of hypochlorous acid water caused by the antibacterial or antifungal agent. Therefore, a set concentration of hypochlorous acid can be stably added to the air released from the gas-liquid contact section.

[0013] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Note that the following embodiments are examples of the present invention and do not limit the technical scope of the present invention. Furthermore, the same components are designated by the same reference numerals throughout the drawings, and their explanations are omitted. Furthermore, to avoid duplication, explanations of the details of each part that is not directly related to the present invention are omitted for each drawing.

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0015] (Embodiment 1) A space purification system 1 according to the first embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is a schematic diagram of the space purification system 1 according to the first embodiment of the present invention.

[0016] <Overall structure> The space purification system 1 is a system that dilutes high-concentration hypochlorous acid water with raw city water obtained from outside to produce disinfecting water containing hypochlorous acid, and then releases the hypochlorous acid into the air through gas-liquid contact to disinfect or sterilize the target space S. In this case, the space purification system 1 controls the flow of hypochlorous acid water that is brought into gas-liquid contact based on the humidification capacity set by the user. Specifically, as shown in FIG. 1, the space purification system 1 is configured to include a hypochlorous acid water supply device 2 and an air conditioner 20. The hypochlorous acid water supply device 2 is configured to include a water supply unit 4, a hypochlorous acid water supply unit 7, and a hypochlorous acid water control unit 3. The air conditioning device 20 is also configured to include a return air duct 22, a filter 23, an air cooler 24, an air heater 25, an air-liquid contact section 26, a blower 29, an air supply duct 30, a drain pan 31, a drainage flow path 32, a heat source device 33, multiple flow paths (flow paths 34 to 37), and a humidification control section 21.

[0017] <Hypochlorous acid water supply device> The hypochlorous acid water supply device 2 is a device that mixes hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 with water supplied from the water supply unit 4 to dilute the hypochlorous acid water, and supplies the diluted hypochlorous acid water to the gas-liquid contact unit 26.

[0018] The water supply unit 4 is a component that supplies city water flowing in from an external facility water supply pipe (not shown) to the gas-liquid contact unit 26 of the air conditioner 20. The water supply unit 4 is configured with a water pipe 5 and a water valve 6. The water pipe 5 is a pipe that connects the external facility water supply pipe and the gas-liquid contact unit 26 of the air conditioner 20 in communication with each other. The water valve 6 is provided on the water pipe 5. The water valve 6 is connected to the hypochlorous acid water control unit 3 wirelessly or by wire so as to be able to communicate with the hypochlorous acid water control unit 3, and is opened and closed by signals from the hypochlorous acid water control unit 3. This makes it possible to introduce or stop the introduction of tap water into the gas-liquid contact unit 26. The water valve 6 can be a solenoid valve.

[0019] The hypochlorous acid water supply unit 7 is a member that sends out high-concentration hypochlorous acid water stored therein into the water pipe 5 of the water supply unit 4. The hypochlorous acid water supply unit 7 is configured to have a water supply pipe 8, a water stop valve 9, a water supply pump 10, and a hypochlorous acid water tank 11.

[0020] The water supply pipe 8 is a pipe that connects the water pipe 5 to the hypochlorous acid water tank 11 at a predetermined position of the water pipe 5 of the water supply unit 4, and is used to supply the hypochlorous acid water stored in the hypochlorous acid water tank 11 into the water pipe 5.

[0021] The stop valve 9 is provided in the water supply pipe 8. The stop valve 9 is connected to the hypochlorous acid water control unit 3 wirelessly or by wire so as to be able to communicate with the hypochlorous acid water control unit 3, and is opened and closed by signals from the hypochlorous acid water control unit 3. The stop valve 9 can be a solenoid valve.

[0022] The water supply pump 10 is provided in the water supply pipe 8. The water supply pump 10 is a device that circulates hypochlorous acid water through the water supply pipe 8 when the stop valve 9 is in the "open" state when hypochlorous acid water is supplied from the hypochlorous acid water tank 11 to the water supply pipe 8. The water supply pump 10 is communicably connected to the hypochlorous acid water control unit 3 wirelessly or by wire, and operates in response to a signal from the hypochlorous acid water control unit 3. The stop valve 9 and the water supply pump 10 operate in conjunction with each other, so that the introduction of hypochlorous acid water from the hypochlorous acid water tank 11 into the water supply pipe 8 can be started or stopped.

[0023] The hypochlorous acid water control unit 3 controls the hypochlorous acid water supply device 2 so as to supply water to the air conditioning device 20 based on a signal from the humidification control unit 21, which will be described later. The hypochlorous acid water control unit 3 is connected to the humidification control unit 21 wirelessly or by wire so as to be able to communicate with the humidification control unit 21.

[0024] Based on a signal from the hypochlorous acid water control unit 3, the hypochlorous acid water supply device 2 supplies hypochlorous acid water from the hypochlorous acid water supply unit 7 and water from the water supply unit 4, mixes and dilutes them in a pipe, and supplies diluted hypochlorous acid water of a set concentration to the gas-liquid contact unit 26. At this time, the hypochlorous acid concentration in the hypochlorous acid water mixed and diluted in the pipe is set to 20 ppm.

[0025] <Air conditioning equipment> The air conditioner 20 adjusts the temperature and humidity of air taken in from the outside and the target space S, vaporizes the hypochlorous acid water delivered from the hypochlorous acid water supply device 2, and releases it into the target space S, thereby sterilizing or disinfecting the target space S. As described above, the air conditioner 20 includes a return air duct 22, a filter 23, an air cooler 24, an air heater 25, a gas-liquid contact unit 26, a blower 29, an air supply duct 30, a drain pan 31, a drainage flow path 32, a heat source device 33, a plurality of flow paths (flow paths 34 to 37), and a humidification control unit 21. Air introduced into the air conditioner 20 is ventilated in the order of the return air duct 22, the filter 23, the air cooler 24, the air heater 25, the gas-liquid contact unit 26, and the blower 29, and is then discharged to the target space S outside the device via the air supply duct 30.

[0026] The return air duct 22 is an opening for introducing air into the air conditioner 20. Impurities such as dust and dirt are removed from the air introduced by the return air duct 22 by a filter 23.

[0027] The filter 23 removes impurities such as dust and dirt from the introduced air. The air that has passed through the filter 23 is ventilated to the air cooler 24.

[0028] The air cooler 24 is a unit that cools the air passing through it. The air cooler 24 is connected in communication with the heat source device 33 via a flow path 34 and a flow path 35. Chilled water flows into the air cooler 24 from the heat source device 33 through the flow path 34, and the chilled water flows through the air cooler 24. Heat exchange occurs between the flowing chilled water and the air passing through the air cooler 24, cooling the air that has passed through. The chilled water that has undergone heat exchange flows through the flow path 34 and is sent to the heat source device 33. At this time, water generated by condensation is collected in the drain pan 31. The air that has passed through the air cooler 24 is ventilated to the air heater 25. The air cooler 24 is connected to the humidification control unit 21 wirelessly or by wire so as to be able to communicate with the humidification control unit 21, and is controlled by the humidification control unit 21.

[0029] The air heater 25 is a unit that heats the air passing through it. The air heater 25 is connected in communication with the heat source device 33 via flow paths 36 and 37. Hot water flows into the air heater 25 from the heat source device 33 through flow path 36, and the hot water passes through the air heater 25. Heat exchange occurs between the flowing hot water and the air passing through the air heater 25, and the passing air is heated. The hot water that has undergone heat exchange flows through flow path 37 and is sent to the heat source device 33. The air that has passed through the air heater 25 is passed through the gas-liquid contact unit 26. The air heater 25 is connected to the humidification control unit 21 wirelessly or by wire so as to be able to communicate with it, and is controlled by the humidification control unit 21.

[0030] <Gas-liquid contact part> The gas-liquid contact unit 26 is a unit that humidifies the air taken in, and during humidification, hypochlorous acid water (hypochlorous acid water delivered from the hypochlorous acid water supply device 2) is added to the air. The gas-liquid contact unit 26 is connected in communication with the hypochlorous acid water supply device 2 (the water supply pipe 8 of the hypochlorous acid water supply unit 7) via the water pipe 5 of the water supply unit 4. The gas-liquid contact unit 26 has a structure (e.g., an evaporation filter) that can contain the hypochlorous acid water delivered from the hypochlorous acid water supply device 2. The gas-liquid contact unit 26 has a flat plate shape and includes many fibers, and is capable of retaining water between the fibers. The gas-liquid contact unit 26 is installed so that the return air duct 22 and the flat surface (air flow surface) of the gas-liquid contact unit 26 face each other. The hypochlorous acid water delivered from the hypochlorous acid water supply device 2 is supplied from above the flat surface of the gas-liquid contact unit 26. Therefore, it is possible for hypochlorous acid water to be contained in the air passing through the gas-liquid contact unit 26. In other words, the gas-liquid contact unit 26 causes hypochlorous acid water to flow from above to below the flat surface and vaporize. Then, as the air containing hypochlorous acid water vaporizes, hypochlorous acid is released into the target space S, and the target space S is disinfected or sterilized. Note that while the hypochlorous acid water supply device 2 is operating, hypochlorous acid water is constantly supplied to the gas-liquid contact unit 26, and any hypochlorous acid water that cannot be contained in the gas-liquid contact unit 26 flows downward and is collected by the drain pan 31.

[0031] Next, the structure of the gas-liquid contact section 26 will be described in detail with reference to Fig. 2. Fig. 2 is a schematic diagram showing the configuration of the gas-liquid contact section 26. Note that Fig. 2 is a front view of the gas-liquid contact section 26, showing the planar portion of the gas-liquid contact section 26.

[0032] The gas-liquid contact section 26 is configured by combining a plurality of humidifying materials 27, each having a nonwoven fabric made of polyester fiber or polyethylene fiber, and the humidifying materials 27 are bonded to one another by thermal welding. Specifically, as shown in Fig. 2, the gas-liquid contact section 26 is configured by having a plurality of humidifying materials 27 and a frame 28 that fixes the humidifying materials 27.

[0033] The humidifying material 27 is made of a nonwoven fabric containing a thermally adhesive synthetic resin (e.g., polyester fiber or polyethylene fiber). The humidifying materials 27 are bonded together by thermal welding without using any adhesive. The humidifying material 27 retains hypochlorous acid water inside the nonwoven fabric. The humidifying material 27 also contains an isothiazolin-based antibacterial or antifungal agent that is unlikely to react with hypochlorous acid water. Examples of the isothiazolin-based antibacterial or antifungal agent include one or more selected from 1,2-benzisothiazolin-3-one, Nn-butyl-1,2-benzisothiazolin-3-one, n-octyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, and 2-methyl-4,5-trimethylene-4-isothiazolin-3-one. In other words, the humidifying material 27 is configured not to contain an antibacterial agent or antifungal agent (for example, zinc pyrithione) that reacts with hypochlorous acid water. Note that gaps 27a are formed between the heat-welded humidifying materials 27 to allow air to circulate.

[0034] The frame 28 is a member that fixes the entire outer periphery of the plurality of heat-welded humidifying materials 27 and constitutes the outer frame of the gas-liquid contact section 26. The upper end of the frame 28 is connected to the water supply pipe 8 of the hypochlorous acid water supply device 2. The frame 28 drips hypochlorous acid water from the upper end of the frame 28 onto the top of the humidifying materials 27.

[0035] The gas-liquid contact section 26 is configured as described above.

[0036] As shown in Fig. 1 , the blower 29 is provided after the gas-liquid contactor 26 and before the air supply duct 30. The blower 29 generates an air flow from the return air duct 22 toward the air supply duct 30 by discharging air inside the air conditioner 20 to the outside. This allows air for sterilization or disinfection to flow into the air conditioner 20. The blower 29 releases air containing hypochlorous acid into the target space S, making it possible to disinfect or disinfect the target space S. The blower 29 is also connected to the humidification control unit 21 wirelessly or via a wire so as to be able to communicate with the humidification control unit 21, and is controlled by the humidification control unit 21.

[0037] The air supply duct 30 is an opening for releasing air from within the air conditioning device 20 into the target space S. Air containing hypochlorous acid is released from the air supply duct 30 into the target space S, making it possible to disinfect or sterilize the space.

[0038] The drain pan 31 is a tray for collecting water inside the air conditioning device 20. The drain pan 31 is provided below the air cooler 24, the air heater 25, and the gas-liquid contact section 26, and collects water that flows out from at least the air cooler 24 and the gas-liquid contact section 26.

[0039] The drainage flow path 32 is a flow path for draining water accumulated inside the air conditioning apparatus 20. The drainage flow path 32 is connected to the drain pan 31, and discharges the water (including hypochlorous acid water) collected by the drain pan 31 to the outside of the apparatus.

[0040] The heat source device 33 is a device that cools and heats water to produce cold water to be supplied to the air cooler 24 and hot water to be supplied to the air heater 25. The heat source device 33 is connected to the humidification control unit 21 wirelessly or via a wire so as to be able to communicate with the humidification control unit 21, and is controlled by the humidification control unit 21.

[0041] The flow path 34 is a flow path for sending water cooled by the heat source device 33 from the heat source device 33 to the air cooler 24 .

[0042] The flow path 35 is a flow path for sending the water that has passed through the air cooler 24 to the heat source device 33 .

[0043] The flow path 36 is a flow path for sending water heated by the heat source device 33 from the heat source device 33 to the air heater 25.

[0044] The flow path 37 is a flow path for sending the water that has passed through the air heater 25 to the heat source device 33 .

[0045] The humidification control unit 21 controls the operations of the air cooler 24, the air heater 25, the blower 29, and the heat source device 33. The humidification control unit 21 is connected to the hypochlorous acid water control unit 3 wirelessly or by wire so as to be able to communicate with it.

[0046] <Space purification processing> Next, the space purification process performed by the space purification system 1 will be described.

[0047] The space purification process is a process in which hypochlorous acid water sent from the hypochlorous acid water supply device 2 is vaporized by the air conditioner 20 and released into the target space S.

[0048] First, the humidification control unit 21 starts the blower 29 upon starting the space purification process. As a result, air within the air conditioner 20 is discharged into the target space S, and air (e.g., air from the target space S) is introduced through the return air duct 22. Impurities (e.g., dust) are removed from the introduced air by the filter 23. The air is then heat exchanged by the air cooler 24 and the air heater 25, resulting in temperature-adjusted air. The air is then humidified by passing through the gas-liquid contact unit 26. During humidification, the air that has passed through the gas-liquid contact unit 26 contains hypochlorous acid water whose concentration has been adjusted by the hypochlorous acid water supply device 2. The air containing hypochlorous acid water is released into the target space S from the intake air duct 30 by the blower 29, and by vaporization, hypochlorous acid is released into the target space S at a set concentration, thereby sterilizing or disinfecting the target space S.

[0049] As described above, in the space purification system 1, the humidification control unit 21 controls the supply process of hypochlorous acid water in the hypochlorous acid water supply device 2 and the humidification process in the air conditioning device 20, thereby performing the space purification process.

[0050] As described above, the space purification system 1 according to the first embodiment can provide the following effects.

[0051] (1) The space purification system 1 includes a hypochlorous acid water supply device 2 that supplies hypochlorous acid water, a gas-liquid contact section 26 that drips and vaporizes the hypochlorous acid water supplied from the hypochlorous acid water supply device 2, and a blower 29 that discharges air that passes through the gas-liquid contact section 26 into the target space S. The gas-liquid contact section 26 is configured so that a reaction between the material that constitutes the gas-liquid contact section 26 and the hypochlorous acid water is suppressed.

[0052] With this configuration, consumption of hypochlorous acid water caused by the material (humidifying material 27) constituting the gas-liquid contact unit 26 is suppressed, thereby stabilizing the concentration of hypochlorous acid water that comes into contact with air flowing through the gas-liquid contact unit 26. As a result, hypochlorous acid can be imparted at a set concentration to the air flowing through the gas-liquid contact unit 26. In other words, when hypochlorous acid is imparted to the air flowing through the gas-liquid contact unit 26, the space purification system 1 can be configured to stably impart hypochlorous acid.

[0053] (2) In the space purification system 1, the gas-liquid contact unit 26 is configured by combining multiple humidifying materials 27, each having a nonwoven fabric made of polyester fiber or polyethylene fiber, and the humidifying materials 27 are bonded to each other by thermal welding. This eliminates the need to use adhesive when combining the multiple humidifying materials 27, reduces the consumption of hypochlorous acid water due to reaction with the adhesive, and enables a set concentration of hypochlorous acid to be stably applied to the air released from the gas-liquid contact unit 26.

[0054] (3) In the space purification system 1, the gas-liquid contact unit 26 contains an isothiazolinone-based antibacterial or antifungal agent as the antibacterial or antifungal agent. This makes it possible to suppress the generation of bacteria or mold in the gas-liquid contact unit 26 while also suppressing the consumption of hypochlorous acid water caused by the antibacterial or antifungal agent. This makes it possible to stably impart a set concentration of hypochlorous acid to the air released from the gas-liquid contact unit 26.

[0055] (4) In the space purification system 1, the gas-liquid contact unit 26 is configured not to contain an antibacterial or antifungal agent (e.g., zinc pyrithione) that reacts with hypochlorous acid water. This reliably suppresses the consumption of hypochlorous acid water due to the antibacterial or antifungal agent, and therefore allows a set concentration of hypochlorous acid to be stably added to the air released from the gas-liquid contact unit 26.

[0056] (5) In the space purification system 1, the hypochlorous acid water supply device 2 and the gas-liquid contact unit 26 are connected in communication with each other via piping (water supply pipe 8), and the water supplied from the water supply unit 4 and the hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 are mixed and diluted in the piping and supplied to the gas-liquid contact unit 26. By doing so, in the space purification system 1, the hypochlorous acid water mixed and diluted in the piping is prevented from coming into contact with external air until it reaches the gas-liquid contact unit 26 (humidifying material 27). This prevents hypochlorous acid from attenuating due to air contact, and allows a set concentration of hypochlorous acid to be stably added to the air released from the gas-liquid contact unit 26.

[0057] (6) In the space purification system 1, the piping (the water pipe 5 and the water supply pipe 8) is configured so that the hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 is diluted with the water supplied from the water supply unit 4. As a result, when the hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 is diluted, the hypochlorous acid water is stirred with the water supplied from the water supply unit 4. This makes it possible to stabilize the concentration of the hypochlorous acid water when it is supplied to the gas-liquid contact unit 26. Therefore, it is possible to stably impart a set concentration of hypochlorous acid to the air released from the gas-liquid contact unit 26.

[0058] The present invention has been described above based on the 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.

[0059] In the space purification system 1 according to the first embodiment, hypochlorous acid water diluted to a set concentration is supplied from the hypochlorous acid water supply device 2 to the gas-liquid contact unit 26, but this is not limiting. For example, the hypochlorous acid water supply device 2 may be configured to mix a pH adjuster such as hydrochloric acid or phosphate water to adjust the pH value of the hypochlorous acid water. This makes it possible to expand the control range of the concentration of hypochlorous acid contained in the air released from the gas-liquid contact unit 26.

[0060] Furthermore, in the space purification system 1 according to the first embodiment, the hypochlorous acid water supply device 2 is configured to mix and dilute the water supplied from the water supply unit 4 and the hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 in the piping, but this is not limited to this. For example, the hypochlorous acid water supply device 2 may be provided with a mixing tank, and the hypochlorous acid water supplied from the hypochlorous acid water supply unit 7 and the water supplied from the water supply unit 4 may be mixed and diluted in the mixing tank, and the mixed and diluted hypochlorous acid water may be supplied to the gas-liquid contact unit 26. Even in this case, at least the above-described effects (1) to (4) can be obtained. [Industrial Applicability]

[0061] The space purification system according to the present invention is configured to be able to stably impart hypochlorous acid when the hypochlorous acid is added to the air flowing through the gas-liquid contact section, and is useful as a system for sterilizing or disinfecting the air in a target space. [Explanation of symbols]

[0062] 1. Space purification system 2. Hypochlorous acid water supply device 3 Hypochlorous Acid Water Control Section 4 Water supply section 5. Water pipes 6. Water valve 7. Hypochlorous acid water supply section 8 Water pipe 9. Water stop valve 10 Water pump 11 Hypochlorous acid water tank 12 pH adjuster supply section 20 Air conditioning equipment 21 Humidification control section 22 Return air duct 23 Filters 24 Air Cooler 25 Air heater 26 Gas-liquid contact part 27 Humidifying material 27a Gap 28 frames 29 Blower 30 Air supply duct 31 Drain pan 32 Drainage channel 33 Heat source device 34 Flow path 35 Flow path 36 Flow path 37 Flow path

Claims

[Claim 1] a hypochlorous acid water supply device for supplying hypochlorous acid water; A gas-liquid contact section in which the hypochlorous acid water supplied from the hypochlorous acid water supply device is dropped and vaporized; a blower that discharges air that ventilates the gas-liquid contact portion into a target space; Equipped with The gas-liquid contact section is The humidifying material is configured by combining a plurality of humidifying materials having nonwoven fabrics made of polyester fibers or polyethylene fibers so as to suppress the reaction between the material constituting the gas-liquid contact portion and the hypochlorous acid water, The antibacterial agent or antifungal agent contains an isothiazolinone-based antibacterial agent or antifungal agent, The space purification system is characterized in that the humidifying materials are bonded to each other by thermal welding.

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