Space decontamination device

Abstract

The space purification device (1000) of the present application includes an electrolytic cell (200), an electrode portion (210), a mixing tank (300), a hypochlorous acid water supply portion (228), a water supply portion (138), an air supply portion, a purification portion (310), and a control portion (500). The control portion (500) determines the supply amount of hypochlorous acid water supplied by the hypochlorous acid water supply portion (228) based on a purification setting indicating the purification capacity required for the purification portion (310) and an air volume setting.

Description

Technical Field

[0001] This invention relates to a space purification device that releases active oxygen species into space. Background Technology

[0002] Space purification devices are known to remove (including deactivate) bacteria, fungi, viruses, and odors from the air by electrolyzing and generating electrolyzed water containing hypochlorous acid and then releasing it (for example, see Patent Document 1). In the generation of hypochlorous acid, an electrolysis promoter such as salt needs to be added to the water to be electrolyzed beforehand to generate water containing chloride ions.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-24811 Summary of the Invention

[0006] Space purification devices aim to release the optimal amount of active oxygen species based on the indoor environment in which they are installed.

[0007] The purpose of this invention is to provide a technology for releasing a suitable amount of reactive oxygen species for the use environment.

[0008] One aspect of the space purification device of the present invention includes: an electrolytic cell for storing water supplied from the outside; an electrode section disposed in the electrolytic cell for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell; a mixing tank for mixing hypochlorous acid water with water to generate mixed water; a hypochlorous acid water supply section for supplying hypochlorous acid water from the electrolytic cell to the mixing tank; a water supply section for supplying water to the mixing tank; an air supply section for drawing air in from an air intake based on a preset airflow setting; a purification section for contacting the mixed water stored in the mixing tank with the air drawn in from the air intake; and a control section for controlling the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control section determines the supply amount of hypochlorous acid water supplied by the hypochlorous acid water supply section based on a purification setting and an airflow setting indicating the purification capacity required by the purification section.

[0009] Another aspect of the space purification device of the present invention includes: an electrolytic cell for storing water supplied from the outside; an electrode unit disposed in the electrolytic cell for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell; a mixing tank for mixing hypochlorous acid water with water to generate mixed water; a hypochlorous acid water supply unit for supplying hypochlorous acid water from the electrolytic cell to the mixing tank; a water supply unit for supplying water to the mixing tank; an air supply unit for drawing air in from an air intake based on a preset airflow setting; a purification unit for contacting the mixed water stored in the mixing tank with the air drawn in from the air intake; and a control unit for controlling the electrode unit, the hypochlorous acid water supply unit, the water supply unit, and the air supply unit. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit for the next supply based on a purification setting indicating the purification capacity required by the purification unit, an airflow setting since the last time hypochlorous acid water was supplied, and the elapsed time since the last time.

[0010] Another aspect of the space purification device of the present invention includes: an electrolytic cell for storing water supplied from the outside; an electrode section disposed in the electrolytic cell for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell; a mixing tank for mixing the hypochlorous acid water with water to generate mixed water; a hypochlorous acid water supply section for supplying hypochlorous acid water from the electrolytic cell to the mixing tank; a water supply section for supplying water to the mixing tank; an air supply section for drawing air in from an air intake based on a preset airflow setting; a purification section for contacting the mixed water stored in the mixing tank with the air drawn in from the air intake; and a control section for controlling the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control section has an airflow determination section for determining the airflow setting set for the air supply section. The airflow determination section determines the airflow setting based on environmental variables.

[0011] Furthermore, any combination of the above-mentioned constituent elements, or a method of converting the description of the present invention into methods, apparatus, systems, recording media, computer programs, etc., can also be considered as a method of the present invention.

[0012] According to the present invention, it is possible to release an amount of reactive oxygen species suitable for the use environment. Attached Figure Description

[0013] Figure 1 This is a diagram showing the internal structure of the space purification device according to an embodiment of the present invention.

[0014] Figure 2A This is a diagram illustrating the general operation of the space purification device according to an embodiment of the present invention.

[0015] Figure 2B This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0016] Figure 2C This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0017] Figure 3A This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0018] Figure 3B This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0019] Figure 4A This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0020] Figure 4B This is a diagram illustrating the operation overview of the space purification device according to an embodiment of the present invention.

[0021] Figure 5 This is a diagram illustrating the functional modules (functional blocks) of the space purification device according to an embodiment of the present invention.

[0022] Figure 6A This is a diagram illustrating the data structure (data construction) of the table stored in the storage unit according to an embodiment of the present invention.

[0023] Figure 6B This is a diagram illustrating the data structure of the table stored in the storage unit according to an embodiment of the present invention.

[0024] Figure 7A This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0025] Figure 7B This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0026] Figure 8A This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0027] Figure 8B This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0028] Figure 9A This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0029] Figure 9B This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0030] Figure 9C This is a diagram illustrating the data structure of another table stored in the storage unit according to an embodiment of the present invention.

[0031] Figure 10This is a flowchart illustrating the control steps of the space purification device according to an embodiment of the present invention.

[0032] Figure 11 This is a flowchart illustrating another control step of the space purification device according to an embodiment of the present invention. Detailed Implementation

[0033] Before describing specific embodiments of the present invention, a summary of the embodiments will be provided. This embodiment relates to a space purification device that generates and releases electrolyzed water based on water and an electrolysis promoter. Previous space purification devices generated chloride-containing water by dissolving an electrolysis promoter in water in a water storage section, and then electrolyzed the chloride-containing water by passing an electric current through electrodes, thereby generating electrolyzed water containing active oxygen species. Furthermore, the space purification device continuously contacts the generated electrolyzed water with air drawn in from the outside in the water storage section, and then releases the contacted air to the outside by rotating a fan. Therefore, the electrolyzed water in the water storage section is easily contaminated by contact with air. If the electrolyzed water is contaminated, the electrodes may deteriorate.

[0034] To suppress electrode deterioration, the space purification device of this embodiment divides the water storage section into two tanks: an electrolytic cell and a mixing tank. Electrodes are installed in the electrolytic cell, where they electrolyze water containing chloride ions to generate electrolyzed water. The electrolyzed water generated in the electrolytic cell is then supplied to the mixing tank. Furthermore, in the mixing tank, the electrolyzed water from the electrolytic cell is continuously brought into contact with air drawn in from the outside, and then the air is released to the outside by the rotation of a fan. With this structure, the electrolyzed water in the electrolytic cell does not come into contact with the air, thus reducing its susceptibility to contamination and suppressing electrode deterioration.

[0035] Furthermore, when the space purification device is installed indoors, it is desirable for the device to release an amount of reactive oxygen species suitable for the operating environment. Specifically, the space purification device should release a large amount of reactive oxygen species when a high level of polychloric acid is needed indoors, and suppress the release of reactive oxygen species when not needed. Therefore, the space purification device of this embodiment appropriately determines the supply rate from the electrolytic cell to the mixing cell and performs adjustment to optimize the concentration in the mixing cell.

[0036] Hereinafter, the methods for carrying out the present invention will be described with reference to the accompanying drawings. Figure 1 This illustrates the internal structure of a space purification device 1000 according to one embodiment of the present invention.

[0037] The space purification device 1000 includes a water storage tank 100, a water supply tank 110, a cover 112, a first pump 120, a first water supply pipe 122, a supply port 124, a second pump 130, a second water supply pipe 132, a water shortage float 160, an electrolytic cell 200, an electrode section 210, a third pump 220, a third water supply pipe 222, a metering container 224, a third water supply pipe 226, a full-water float 250, a water shortage float 260, a mixing tank 300, a purification section 310, a full-water float 350, a water shortage float 360, a drainage float 370, an electrolysis promoter input section 400, an input port 404, an electrolysis promoter 410, and a control section 500. Here, the first pump 120, the first water supply pipe 122, and the supply port 124 are included in the first supply section 128; the second pump 130 and the second water supply pipe 132 are included in the second supply section 138; and the third pump 220, the third water supply pipe 222, the metering container 224, and the third water supply pipe 226 are included in the third supply section 228. The following description will proceed in the following order: (1) basic structure, (2) initial treatment, (3) normal treatment, (4) restart treatment, (5) airflow control treatment, (6) first water delivery treatment, and (7) second water delivery treatment.

[0038] (1) Basic Structure

[0039] The water storage tank 100 has a box shape with an open top surface and a structure capable of storing water supplied from the water supply tank 110 (described later). The water storage tank 100 is, for example, disposed in the lower portion of the space purification device 1000. The water supply tank 110 is a water tank that stores water internally and is detachable from the water storage tank 100. A cover 112 is provided at the opening (not shown) of the water supply tank 110, and an opening / closing part (not shown) is provided in the center of the cover 112. When the opening / closing part is opened, water in the water supply tank 110 is supplied to the water storage tank 100.

[0040] Specifically, if the water supply tank 110 is installed in the water storage tank 100 with its opening facing downwards, the opening and closing mechanism is open. That is, when the water supply tank 110, which is filled with water, is installed in the water storage tank 100, the opening and closing mechanism is open, supplying water to the water storage tank 100, and water accumulates in the water storage tank 100. When the water level in the water storage tank 100 rises to the cover 112, the opening of the water supply tank 110 is water-sealed, and the water supply stops. Even when water remains inside the water supply tank 110, whenever the water level in the water storage tank 100 drops, water from the water supply tank 110 is supplied to the water storage tank 100. As a result, the water level in the water storage tank 100 remains constant.

[0041] A first pump 120 is disposed within a water storage tank 100 and connected to a first water supply pipe 122. The first pump 120 operates according to instructions from the control unit 500, drawing water stored in the water storage tank 100 into the first water supply pipe 122. The first water supply pipe 122 connects the water storage tank 100 and the electrolytic cell 200, and has a supply port 124 at the side end of the electrolytic cell 200. Water drawn by the first pump 120 flows within the first water supply pipe 122 and is supplied to the electrolytic cell 200 through the supply port 124. In other words, the first pump 120, the first water supply pipe 122, and the supply port 124 supply water from the water storage tank 100 to the electrolytic cell 200.

[0042] The second pump 130 is disposed within the water storage tank 100 and connected to the second water supply pipe 132. The second pump 130 operates according to instructions from the control unit 500, drawing water stored in the water storage tank 100 into the second water supply pipe 132. The second water supply pipe 132 connects the water storage tank 100 and the mixing tank 300. The water drawn by the second pump 130 flows within the second water supply pipe 132 and is supplied to the mixing tank 300. In other words, the second pump 130 and the second water supply pipe 132 supply water from the water storage tank 100 to the mixing tank 300.

[0043] The electrolytic cell 200 has a box shape with an open top surface and is disposed below the supply port 124. The electrolytic cell 200 stores water supplied from the supply port 124. On the upper side of the electrolytic cell 200, an electrolysis promoter feeding section 400 is disposed side by side with the supply port 124.

[0044] The electrolysis accelerator dispensing unit 400 is capable of storing electrolysis accelerator 410. When an instruction to dispense electrolysis accelerator 410 is issued from the control unit 500, the tablet dispensing component (not shown) rotates. As the tablet dispensing component rotates, the electrolysis accelerator 410 falls into the electrolysis tank 200. The electrolysis accelerator dispensing unit 400 counts the number of electrolysis accelerators 410 falling into the electrolysis tank 200, and stops rotating the tablet dispensing component when it is determined that one electrolysis accelerator 410 has fallen into the electrolysis tank 200. That is, the electrolysis accelerator dispensing unit 400 dispenses the electrolysis accelerator 410 into the electrolysis tank 200. By dissolving the electrolysis accelerator 410 in the water within the electrolysis tank 200, water containing chloride ions is generated in the electrolysis tank 200. An example of the electrolysis accelerator 410 is sodium chloride, which is used to electrolyze and promote tablet formation.

[0045] The electrode section 210 is installed by immersing it in water within the electrolytic cell 200. When the electrode section 210 is energized, it electrochemically decomposes the chloride-containing water within the electrolytic cell 200 to generate electrolyzed water containing active oxygen species. Here, active oxygen species refer to oxygen molecules and related substances that have higher oxidizing activity than ordinary oxygen. For example, active oxygen species include not only so-called narrowly defined active oxygen species such as superoxide anion, singlet oxygen, hydroxyl radicals, and hydrogen peroxide, but also so-called broadly defined active oxygen species such as ozone and hypochlorous acid (hypohalic acid).

[0046] Electrode 210 can also be designed so that the energizing time and non-energizing time constitute a cycle, and this cycle can be repeated multiple times to generate electrolyzed water. The energizing time is the time during which electricity is applied for electrolysis, and the non-energizing time is the time after the electricity is stopped, i.e., the time without electricity. By setting a non-energizing time for electrode 210, the lifespan of electrode 210 is extended. If the energizing time is extended compared to the non-energizing time, electrolyzed water containing a greater amount of active oxygen species is generated in each cycle. Furthermore, if the non-energizing time is extended compared to the energizing time, the generation of active oxygen species in each cycle can be suppressed. Moreover, if the electrical force during the energizing time is increased, electrolyzed water containing a greater amount of active oxygen species can be generated. Thus, the electrolyzer 200 can be considered a tank for generating electrolyzed water from water to which the electrolysis promoter 410 has been added. The electrolyzed water is also known as hypochlorous acid water, and hypochlorous acid water of a specified concentration can be generated in the electrolyzer 200.

[0047] A third pump 220 is disposed within the electrolytic cell 200 and connected to a third water supply pipe 222. The third pump 220 operates according to instructions from the control unit 500, drawing electrolyzed water stored in the electrolytic cell 200 into the third water supply pipe 222. The third water supply pipe 222 is connected to a metering container 224, supplying electrolyzed water from the electrolytic cell 200 to the metering container 224. The metering container 224 is a container with a certain capacity, storing a certain volume of electrolyzed water supplied from the third water supply pipe 222. The metering container 224 is connected to a third inlet pipe 226, which extends into the mixing tank 300. The electrolyzed water stored in the metering container 224 flows within the third water supply pipe 226 and is supplied to the mixing tank 300. In other words, the third pump 220, the third water supply pipe 222, the metering container 224, and the third water supply pipe 226 supply electrolyzed water from the electrolytic cell 200 to the mixing tank 300.

[0048] The mixing tank 300 has a box shape with an open top surface, and generates mixed water by mixing water supplied from the water storage tank 100 and electrolyzed water supplied from the electrolysis tank 200. This is equivalent to diluting the electrolyzed water supplied from the electrolysis tank 200 with water supplied from the water storage tank 100. A purification unit 310 is provided in the mixing tank 300.

[0049] The purification unit 310 includes a fan (not shown) and a filter. The fan, such as a Sirocco fan, rotates under the control of the control unit 500. The fan's airflow is determined based on temperature, humidity, and the odor level of the gas, per unit time (e.g., 5 minutes). The fan's rotation speed is controlled based on the determined airflow. As the fan rotates, air is drawn into the interior of the space purification device 1000 through an air intake (not shown) located in the housing (not shown) of the space purification device 1000.

[0050] The filter is a component that brings the electrolyzed water stored in the mixing tank 300 into contact with the indoor air flowing into the space purification device 1000 via a fan. The electrolyzed water stored in the mixing tank 300 can also be described as a mixture of hypochlorous acid and water. The filter is cylindrical in shape, with holes on its circumference to allow airflow. The filter is rotatably housed in the mixing tank 300 with one end immersed in the electrolyzed water stored in the mixing tank 300. Driven by a drive unit (not shown), the filter rotates, ensuring continuous contact between the electrolyzed water and the indoor air.

[0051] An airflow path is formed, connecting the intake port to the filter, fan, and exhaust port (not shown). When the fan rotates, external air drawn in from the intake port and entering the airflow path sequentially passes through the filter, fan, and exhaust port to the outside of the space purification device 1000. As a result, the air that has come into contact with the electrolyzed water in the mixing tank 300 is released to the outside. The space purification device 1000 releases active oxygen species from the generated electrolyzed water (including volatiles) along with the air.

[0052] A water shortage float 160 installed in the water storage tank 100, a full water float 250 and a water shortage float 260 installed in the electrolysis tank 200, a full water float 350, a water shortage float 360, and a drainage float 370 installed in the mixing tank 300 are used to detect the presence of water or electrolyzed water. Here, water and electrolyzed water are sometimes collectively referred to as "water". The water shortage float 160, full water float 250, water shortage float 260, full water float 350, water shortage float 360, and drainage float 370 are collectively referred to as "floats". Each float has buoyancy and a magnet (not shown), the position of which can be detected by a detection unit (not shown). When water is present at the float's position, the float moves to a predetermined position due to buoyancy, and the detection unit detects the magnet installed on the float. On the other hand, when water is not present at the float's position, the detection unit cannot detect the magnet installed on the float.

[0053] Water shortage float 160 detects water shortage in water storage tank 100, full water float 250 detects full water in electrolytic cell 200, and water shortage float 260 detects water shortage in electrolytic cell 200. Here, water shortage may not be 100% water shortage; a small amount of water may remain. Additionally, full water float 350 detects full water in mixing tank 300, water shortage float 360 detects water shortage in mixing tank 300, and drainage float 370 detects the drainage level of mixing tank 300. Here, full water may not be 100% full; it may be the amount of water that can be further added. Each float sends its detection results to control unit 500.

[0054] The control unit 500 receives detection results from the water shortage float 160, the full water float 250, the water shortage float 260, the full water float 350, the water shortage float 360, and the drain float 370. Additionally, the control unit 500 controls the electrode unit 210, the purification unit 310, the electrolysis promoter addition unit 400, the first supply unit 128, the second supply unit 138, and the third supply unit 228. Details of the processing by the control unit 500 will be described later.

[0055] As an example, the concentration of the electrolyzed water generated in electrolyzer 200 is in the range of 30ppm-200ppm (hereinafter referred to as the "first concentration"), and the concentration of the electrolyzed water diluted in mixing tank 300 is in the range of 3ppm-50ppm. The concentration of the electrolyzed water diluted in mixing tank 300 is set to be lower than the concentration of the electrolyzed water generated in electrolyzer 200.

[0056] (2) Initial processing

[0057] The initial treatment begins when there is no water in the water storage tank 100, electrolysis tank 200, and mixing tank 300, and continues until the release of water during the initial stage of water electrolysis. Hereinafter, to illustrate the initial treatment, we will also use... Figures 2A to 2C , Figure 3A and Figure 3B .

[0058] Figures 2A to 2C This section outlines the operation of the space purification device 1000. Figure 2A This indicates that the water storage tank 100, electrolysis tank 200, and mixing tank 300 are empty. This is equivalent to the situation after the space purification device 1000 has been purchased and installed. Additionally, it also corresponds to the situation after cleaning and maintenance of the water storage tank 100, electrolysis tank 200, and mixing tank 300.

[0059] Figure 2B It continues Figure 2AThe user fills water into the water supply tank 110 and installs the water supply tank 110 into the water storage tank 100. When the water supply tank 110 is installed into the water storage tank 100, water can be supplied from the water supply tank 110 to the water storage tank 100 by opening the opening and closing part of the cover 112.

[0060] Figure 2C It continues Figure 2B The control unit 500 supplies water from the storage tank 100 to the mixing tank 300 by activating the second pump 130. The water supply continues until the full-water float 350 detects that the tank is full. As a result, the mixing tank 300 stores water in a full-water state.

[0061] The control unit 500 supplies water from the storage tank 100 to the electrolytic cell 200 by activating the first pump 120. During this time, water is supplied for a certain period of time while the electrolytic cell 200 is not yet full. As a result of this water supply, the water level in the electrolytic cell 200 is lower than the full water level. A supply area 240 is provided on a portion of the water surface in the electrolytic cell 200, located below the supply port 124 and the inlet port 404. After the water supply is completed, the control unit 500 introduces an electrolysis promoter 410 from the inlet port 404 into the supply area 240 of the electrolytic cell 200. As a result, the electrolysis promoter 410 is present in the supply area 240 and begins to dissolve in the water.

[0062] Next, the control unit 500 restarts the first pump 120 to supply water from the storage tank 100 to the electrolysis tank 200. At this time, because water is supplied from the supply port 124 to the supply area 240, the dissolution of the electrolysis promoter 410 proceeds further due to the pressure of the supplied water. Water supply continues until the full-water float 250 detects that the tank is full. As a result, the mixing tank 300 stores water containing some or all of the dissolved electrolysis promoter 410, resulting in chloride ions, in a full-water state.

[0063] Figure 3A and Figure 3B Indicates the following Figures 2A to 2C A summary of the operation of the space purification device 1000. Figure 3A It continues Figure 2C The control unit 500 generates electrolyzed water by electrolyzing water containing chloride ions through the electrode unit 210. Here, the electrolysis time is set to be shorter than the time required to generate electrolyzed water of the first concentration (e.g., 40 minutes). As a result, electrolyzed water of a second concentration lower than the first concentration is generated.

[0064] Figure 3B It continues Figure 3AThe state is as follows: When electrolyzed water of the second concentration is generated, the control unit 500 supplies the electrolyzed water of the second concentration to the mixing tank 300 by activating the third pump 220. At this time, since the metering container 224 is used, the electrolyzed water of the second concentration is supplied to the mixing tank 300 in the capacity of the metering container 224. The electrolyzed water of the second concentration is diluted in the mixing tank 300. After stopping the third pump 220, the control unit 500 releases the air that has come into contact with the electrolyzed water in the mixing tank 300 to the outside of the space purification device 1000 by activating the purification unit 310. That is, the release of the air that has come into contact with the electrolyzed water begins after a time of less than 40 minutes.

[0065] (3) Normal processing

[0066] The typical treatment is used to release electrolyzed water at the desired concentration. Figure 4A and Figure 4B Indicates the following Figure 3A and Figure 3B A summary of the operation of the space purification device 1000. Figure 4A It continues Figure 3B The state is such that, since a portion of the second-concentration electrolyzed water in the electrolyzer 200 is supplied to the mixing tank 300, the second-concentration electrolyzed water is stored in the electrolyzer 200 in a non-full state. The control unit 500 supplies water from the storage tank 100 to the electrolyzer 200 by activating the first pump 120. At this time, since water is supplied from the supply port 124 to the supply area 240, the undissolved electrolysis promoter 410 further dissolves due to the pressure of the supplied water. The water supply continues until the full-water float 250 detects that the water is full. As a result, the electrolyzer 200 becomes full. After the water supply to the electrolyzer 200 ends, the control unit 500 energizes the electrode unit 210, thereby generating electrolyzed water through electrolysis. Here, the electrolysis time is set to the time required to generate the first-concentration electrolyzed water (e.g., 40 minutes). As a result, the first-concentration electrolyzed water can be generated.

[0067] Figure 4B It continues Figure 4A The state is as follows: When electrolyzed water of the first concentration is generated, the control unit 500 supplies the electrolyzed water of the first concentration to the mixing tank 300 by activating the third pump 220. At this time, the control unit 500 controls the amount of electrolyzed water supplied to the mixing tank 300, the details of which will be described later. The electrolyzed water of the first concentration is diluted in the mixing tank 300. After stopping the third pump 220, the control unit 500 releases the air that has come into contact with the electrolyzed water in the mixing tank 300 to the outside of the space purification device 1000 by activating the purification unit 310.

[0068] When the air that had come into contact with the electrolyzed water is released, the amount of electrolyzed water in the mixing tank 300 decreases. The control unit 500 determines the timing and amount of electrolyzed water supplied to the mixing tank 300, and supplies electrolyzed water of a first concentration to the mixing tank 300 by activating the third pump 220, as detailed later. Furthermore, if the mixing tank 300 is not full, the control unit 500 further activates the second pump 130, thereby supplying water to the storage tank 100 until the mixing tank 300 is full. Thus, the release of electrolyzed water continues. This process is repeated until the water shortage float 260 detects a water shortage.

[0069] (4) Re-process (process again)

[0070] Restart processing is used to perform normal processing again when the water shortage float 260 detects a water shortage, i.e., when the electrolyzed water in the electrolyzer 200 is insufficient. After supplying electrolyzed water of a first concentration to the mixing tank 300, when the water shortage float 260 detects a water shortage, the control unit 500 starts supplying water to the electrolyzer 200 through the first supply unit 128. That is, the control unit 500 does not supply water to the electrolyzer 200 until it is insufficient. This is to maintain the concentration of the electrolyzed water in the electrolyzer 200 at a first concentration by not supplying water. Additionally, it is to prevent old electrolyzed water from remaining in the electrolyzer 200, thus preventing impurities such as inorganic salt compounds from remaining in the electrolyzer 200. As a result, the maintenance frequency of the electrolyzer 200 is reduced.

[0071] Here, similar to the initial treatment, the control unit 500 supplies water to the electrolyzer 200 for a certain period of time while the electrolyzer 200 is not full. Next, the control unit 500 adds the electrolysis promoter 410 from the inlet 404 to the supply area 240 of the electrolyzer 200 and continues supplying water until the electrolyzer 200 is full. Additionally, the control unit 500 generates electrolyzed water of a second concentration by energizing the electrode 210, and then supplies this second-concentration electrolyzed water from the electrolyzer 200 to the mixing tank 300. That is, a portion of the treatment is performed similarly to the initial treatment. Then, normal treatment is performed.

[0072] (5) Air volume control processing

[0073] Figure 5This diagram represents the functional block diagram of the space purification device 1000. The space purification device 1000 includes a second supply unit 138, a third supply unit 228, a purification unit 310, an electrolyzed water generating unit 460, a control unit 500, an operation unit 516, a gas sensor 520, a humidity sensor 522, a temperature sensor 524, and a storage unit 530. The purification unit 310 includes an air supply unit 518. Alternatively, the air supply unit 518 may be located outside the purification unit 310. The electrolyzed water generating unit 460 includes an electrode unit 210, and the control unit 500 includes an airflow determination unit 540.

[0074] The airflow control process is used to control the airflow of the air supply unit 518 included in the purification unit 310, i.e., the speed of the aforementioned fan. The gas sensor 520 detects the gas present in the space where the space purification device 1000 is installed. The gas sensor 520 can also detect the gas present in air drawn in from the intake port. That is, the gas sensor 520 can be installed in the space or near the intake port of the space purification device 1000. The gas sensor 520 can also obtain the concentration of the gas being detected. Examples of gases being detected include ammonia, acetic acid, isovaleric acid, trimethylamine, hydrogen sulfide, methanethiol, and skatole. The temperature sensor 524 detects the temperature of the space where the space purification device 1000 is installed. The temperature sensor 524 can also detect the temperature of air drawn in from the intake port. That is, the temperature sensor 524 can be installed in the space or near the intake port of the space purification device 1000. The humidity sensor 522 detects the humidity of the space where the space purification device 1000 is installed. Humidity sensor 522 can also detect the humidity of air drawn in through the intake port. That is, humidity sensor 522 can be installed inside the space or near the intake port of the space purification device 1000. Gas sensor 520, temperature sensor 524, and humidity sensor 522 are all installed in locations unaffected by air containing electrolyzed water (or active oxygen species) blown out from the outlet (not shown). Through gas sensor 520, temperature sensor 524, and humidity sensor 522, the air condition (gas type, gas concentration, temperature, and humidity) of the space where the space purification device 1000 is installed can be accurately determined.

[0075] The airflow determination unit 540 determines the airflow setting for the air supply unit 518 based on at least one of the gas type and gas concentration obtained by the gas sensor 520, the humidity obtained by the humidity sensor 522, and the temperature obtained by the temperature sensor 524, per unit airflow time. The gas type and gas concentration obtained by the gas sensor 520, the humidity obtained by the humidity sensor 522, and the temperature obtained by the temperature sensor 524 are also referred to as environmental variables.

[0076] The storage unit 530 stores a table referenced by the air volume determination unit 540. Figure 6A and Figure 6B This represents the data structure of the table stored in the storage unit 530. Figure 6A This is an example of a table (hereinafter referred to as a "temperature and humidity sensor output table"). The temperature and humidity sensor output table specifies the airflow level (airflow setting) that should be determined for the given temperature and humidity conditions when determining airflow. For example... Figure 6A As shown, in the temperature and humidity sensor output table, temperature and humidity are divided into a matrix within specified ranges, with each range associated with a corresponding set airflow level. The threshold for temperature is K1 < K2, and the threshold for humidity is L1 < L2. Figure 6A In the example, airflow levels are represented by three levels, F1 to F3, with F3 being the highest and F1 the lowest. The higher the airflow level value (the higher the airflow level), the greater the airflow.

[0077] For example, influenza tends to be more prevalent at lower temperatures and lower humidity. Therefore, in Figure 6A The temperature and humidity sensor output table shows that a higher airflow level is specified for low temperature and low humidity conditions to maximize the removal of influenza viruses, especially during flu season. As the airflow increases, the amount of reactive oxygen species per unit time in the air blown out from the outlet (not shown) increases, thus inactivating a large number of viruses. Alternatively, it can be used as... Figure 6A The temperature and humidity sensor output tables are stored in the storage unit 530, and the storage unit 530 stores the temperature sensor output table and the humidity sensor output table respectively.

[0078] Figure 6B Another example of a table (hereinafter referred to as the "Gas Sensor Output Table"). The Gas Sensor Output Table is a table referenced by the Airflow Determination Unit 540, specifying the airflow level that should be set for the odor level when the airflow is set. For example... Figure 6B As shown, in the gas sensor output table, the airflow level to be set is associated with odor levels LV1 to LV3. The odor level is set to three levels, from LV1 (weakest) to LV3 (strongest), and is determined by the airflow determination unit 540 based on the gas concentration detected by the gas sensor 520. The airflow level and... Figure 6A Similarly, it is represented by three levels: F1 to F3. Figure 6B In the gas sensor output table shown, the stronger the odor level, the higher the specified airflow level should be to reliably remove the odor. Return Figure 5 .

[0079] The airflow determination unit 540 determines the airflow level (1) to be set for the temperature obtained by the temperature sensor 524 and the humidity obtained by the humidity sensor 522 based on the output table of the temperature and humidity sensor. In addition, the airflow determination unit 540 determines the odor level based on the gas concentration obtained by the gas sensor 520 and determines the airflow level (2) to be set for the odor level. The airflow determination unit 540 determines the larger airflow level between the airflow level (1) and the airflow level (2) as the airflow level of the air supply unit 518 per unit time thereafter, and controls the air supply unit 518 to achieve this airflow level.

[0080] The air supply unit 518 is equivalent to the fan mentioned above, and draws in air from the air intake according to the air volume setting set by the air volume determination unit 540.

[0081] (6) First water supply treatment

[0082] The first water supply process is a process that activates the third pump 220 of the third supply unit 228 to supply electrolyzed water from the electrolyzer 200 to the mixing tank 300. The third supply unit 228 is also referred to as the hypochlorous acid water supply unit, which supplies hypochlorous acid water from the electrolyzer 200 to the mixing tank 300. In order to optimize the hypochlorous acid concentration in the mixing tank 300, the first water supply process includes (6-1) time control of the supply and (6-2) quantity control of the supply.

[0083] (6-1) Timing control of supply

[0084] Figure 5 The control unit 500 accumulates the consumption of hypochlorous acid since the last supply of electrolyzed water was completed. When the accumulated value of hypochlorous acid consumption reaches or exceeds a predetermined value, it decides to supply electrolyzed water from the electrolyzer 200 to the mixing tank 300.

[0085] Figure 7A and Figure 7B This represents the data structure of another table stored in the storage unit 530. Figure 7A This table represents the information used to determine the threshold. "ID" is identification information used to identify the supply amount. For example, "ID" can be 2, 3, or 4. "ID=2" corresponds to the state with the minimum supply of electrolyzed water, and "ID=4" corresponds to the state with the maximum supply of electrolyzed water. After the space purification device 1000 is powered on or reset, the control unit 500 selects the threshold corresponding to "ID=2". Alternatively, the control unit 500 selects the threshold corresponding to the "ID" selected during the previous supply. The threshold corresponds to the supply amount of electrolyzed water at the previous time. Figure 7B As will be discussed later, return Figure 5 .

[0086] The operation unit 516 is an interface that can receive user operations, such as buttons or a touch panel. The operation unit 516 receives purification settings from the purification unit 310 as user operations. Purification settings are indicators representing the required purification capacity of the purification unit 310. For example, purification settings are represented by three levels: "High," "Medium," and "Low." A "High" purification setting represents the highest required purification capacity, with the highest amount of hypochlorous acid (an active oxygen species) in the air released from the purification unit 310. A "Low" purification setting represents the lowest required purification capacity, with the lowest amount of hypochlorous acid (an active oxygen species) in the air released from the purification unit 310. The operation unit 516 outputs the received purification settings to the control unit 500.

[0087] The control unit 500 receives the airflow setting determined in the airflow determination unit 540 on a unit time basis after the last time, for example, every minute, and also receives the purification setting from the operation unit 516. The control unit 500 calculates the consumption of electrolyzed water (or active oxygen) per unit time based on the airflow setting and the purification setting. Figure 7B This table shows the consumption of electrolyzed water (or active oxygen species) associated with the airflow settings "F1" to "F3" and the purification settings "High," "Medium," and "Low." For example, when the airflow setting is "F1" and the purification setting is "High," the consumption of electrolyzed water (or active oxygen species) is represented as "B1." The higher the airflow setting, the greater the consumption of electrolyzed water (or active oxygen species) per unit time. Similarly, the higher the purification setting, the greater the consumption of electrolyzed water (or active oxygen species) per unit time. Return Figure 5 .

[0088] The control unit 500 accumulates the consumption of electrolyzed water (or active oxygen) per unit time. If the accumulated consumption exceeds a threshold, the control unit 500 decides to supply electrolyzed water from the electrolyzer 200 to the mixing tank 300. When electrolyzed water is supplied, the control unit 500 clears the accumulated consumption value.

[0089] (6-2) Supply control

[0090] Figure 5 The control unit 500 determines the amount of electrolyzed water supplied from the electrolysis cell 200 to the mixing tank 300 based on the average air volume during the period from the completion of the previous electrolyzed water supply to the next electrolyzed water supply, and the purification settings of the purification unit 310 during the supply of electrolyzed water.

[0091] After the space purification device 1000 is powered on or reset, the control unit 500 receives the airflow setting from the airflow determination unit 540 and the purification setting from the operation unit 516. The control unit 500 determines the supply amount of electrolyzed water supplied by the third supply unit 228 based on the purification setting and the airflow setting. Figure 8A and Figure 8B This represents a data structure for another table stored in storage unit 530. Figure 8A This is a table representing the "ID" values ​​associated with the average airflow settings "F1" to "F3" and the purification settings "High," "Medium," and "Low." The airflow setting is used as the average airflow setting after the space purification device 1000 is powered on or reset. "ID" and... Figure 7A The displayed "ID" is the same. The control unit 500 determines the "ID" based on the purification setting and airflow setting. Figure 8B As will be discussed later, return Figure 5 .

[0092] On the other hand, apart from when the space purification device 1000 is powered on and reset, the control unit 500 processes the airflow setting determined by the airflow determination unit 540 every unit of time, for example, every minute, since the last time electrolyzed water was supplied. The control unit 500 accumulates the airflow setting until the next supply of electrolyzed water is determined. When the next supply of electrolyzed water is determined, the control unit 500 calculates the average airflow setting by dividing the accumulated value of the airflow setting by the elapsed time since the last time. That is, the control unit 500 calculates the average airflow setting since the last time based on the airflow setting for each unit of time since the last time. The control unit 500 uses the purification setting based on the average airflow setting and the time for determining the next supply of electrolyzed water, referring to... Figure 8A The table is used to determine the "ID".

[0093] Figure 8B This is a table representing the supply quantity of electrolyzed water associated with "ID". "ID=0" indicates supply has stopped, and "ID=1" indicates a temporary stoppage in supply. "ID=2" represents supply quantity "A1", "ID=3" represents supply quantity "A2", and "ID=4" represents supply quantity "A3". Here, A1 < A2 < A3. The control unit 500 determines the supply quantity of electrolyzed water for the next cycle based on the determined "ID". The supply quantity of electrolyzed water for the next cycle can also be referred to as the supply quantity of hypochlorous acid water for the next cycle. Return Figure 5 .

[0094] After determining the supply and supply amount through the above-described processing, the control unit 500 causes the third supply unit 228 to supply the next batch of electrolyzed water according to the determined supply amount. The supply amount is controlled, for example, using the rotational speed and operating time of the pump motor of the third supply unit 228. The determined "ID" is used to control the "(6-1) supply time" when determining the next threshold. Figure 7A The control unit 500 clears the average value of the airflow setting when electrolyzed water is supplied. Additionally, the control unit 500 clears the cumulative value of the airflow setting when electrolyzed water is supplied.

[0095] (7) Second water supply treatment

[0096] The second water supply process is a process that activates the second pump 130 of the second supply unit 138 to supply water from the storage tank 100 to the mixing tank 300. The second supply unit 138 is also referred to as the water supply unit, which supplies water from the storage tank 100 to the mixing tank 300. In the second water supply process, the supply begins when any one of the following conditions is met: (7-1) the first condition, (7-2) the second condition, or (7-3) the third condition, and stops when the stop condition (7-4) is met.

[0097] (7-1)First condition

[0098] When the control unit 500 detects a water shortage on the water shortage float 360 of the mixing tank 300, it instructs the second supply unit 138 to supply water from the storage tank 100 to the mixing tank 300. This can be described as supplying water when the water level in the mixing tank 300 decreases from a first threshold corresponding to the full-water float 350 to a second threshold corresponding to the water shortage float 360, where the second threshold is lower than the first threshold. Alternatively, the full-water float 350 of the mixing tank 300 may not detect fullness in the water supply conditions. When the control unit 500 instructs the second supply unit 138 to supply water, it stops the third supply unit 228. Thus, water is supplied from the storage tank 100 to the mixing tank 300 before electrolyzed water is supplied to the mixing tank 300 through the third supply unit 228.

[0099] (7-2) Second condition

[0100] The control unit 500 accumulates the humidification amount based on airflow and temperature / humidity every minute. Once the predetermined amount of humidification has been achieved, it instructs the second supply unit 138 to supply water from the water storage tank 100 to the mixing tank 300. Specifically, the control unit 500 receives the airflow setting determined by the airflow determination unit 540 every unit of time, for example, every minute. Additionally, the control unit 500 receives humidity data from the humidity sensor 522 and temperature data from the temperature sensor 524 every unit of time.

[0101] Figures 9A to 9CThis represents the data structure of another table stored in storage unit 530. Figure 9A This table shows the humidification output when the airflow is set to "F1". In the humidification output table, temperature and humidity are divided into matrix categories based on specified ranges, with the humidification output correlated to each range. The threshold for temperature is M1 < M2, and the threshold for humidity is G1 < G2. Figure 9B This is a table indicating the humidification capacity when the airflow is set to "F2". Figure 9C This is a table indicating the humidification capacity when the airflow is set to "F3". Figure 9B , Figure 9C and Figure 9A Similarly, return. Figure 5 .

[0102] Based on the obtained airflow settings, the control unit 500 selects... Figures 9A to 9C The control unit 500 accumulates the selected humidification amount per unit time based on the temperature and humidity conditions. If the accumulated humidification amount exceeds a threshold, the control unit 500 instructs the second supply unit 138 to supply water. The accumulated value is reset to zero when the full-water float 350 of the mixing tank 300 detects that the tank is full.

[0103] (7-3) Third condition

[0104] After supplying electrolyzed water to the mixing tank 300 via the third supply unit 228, if the full-water float 350 of the mixing tank 300 does not detect that the tank is full, the control unit 500 instructs the second supply unit 138 to supply water from the water storage tank 100 to the mixing tank 300. The situation where the full-water float 350 of the mixing tank 300 does not detect that the tank is full is equivalent to the situation where the water volume in the mixing tank 300 is less than a first threshold.

[0105] (7-4) Stopping Conditions

[0106] By satisfying the first to third conditions, after water is supplied from the storage tank 100 to the mixing tank 300, the control unit 500 stops the second supply unit 138 from supplying water when the full-water float 350 of the mixing tank 300 detects that it is full. That is, water is supplied from the storage tank 100 to the mixing tank 300 until the water volume in the mixing tank 300 reaches the first threshold.

[0107] The main body of the apparatus, system, or method of the present invention includes a computer. By executing a program on the computer, the functions of the main body of the apparatus, system, or method of the present invention can be realized. The computer includes a processor that operates according to the program as its main hardware structure. The type of processor is not limited as long as it can realize its function by executing the program. The processor is composed of one or more electronic circuits, including semiconductor integrated circuits (ICs) or LSIs (Large Scale Integrations). Multiple electronic circuits can be integrated into one chip or disposed on multiple chips. Multiple chips can be integrated into one device or disposed in multiple devices. The program is recorded on a non-transitory recording medium such as a computer-readable ROM (Read Only Memory), optical disk, or hard disk drive. The program can be pre-stored on the recording medium or provided to the recording medium via a wide area communication network, including the Internet.

[0108] The operation of the space purification device 1000 based on the above structure will be explained. Figure 10 This is a flowchart showing the control sequence of the space purification device 1000.

[0109] For example, after the power to the space purification device 1000 is turned on, water is supplied to the water storage tank 100 (S10).

[0110] Next, water is supplied from the water storage tank 100 to the mixing tank 300 (S12).

[0111] Next, a smaller amount of water than the full volume is supplied from the water storage tank 100 to the electrolytic cell 200 (S14).

[0112] Next, electrolysis promoter 410 is supplied to electrolytic cell 200 (S16).

[0113] Next, water is supplied from the water storage tank 100 to the electrolytic cell 200 until it is full (S18).

[0114] Next, the electrode section 210 performs electrolysis for 10 minutes (S20).

[0115] Next, electrolyzed water of a second concentration is supplied from the electrolyzer 200 to the mixing tank 300 (S22). Afterward, the purification unit 310 releases the electrolyzed water.

[0116] Next, water is supplied from the water storage tank 100 to the electrolytic cell 200 until it is full (S24).

[0117] Next, the electrode section 210 performs electrolysis for 40 minutes (S26).

[0118] Next, the control unit 500 determines the supply of electrolyzed water based on the purification setting and air volume setting (S28).

[0119] Next, electrolyzed water of a first concentration is supplied from the electrolyzer 200 to the mixing tank 300 in a determined amount (S30).

[0120] Figure 11 This is a flowchart illustrating another control step of the space purification device 1000. It shows the following... Figure 10 The processing.

[0121] Perform at least one of the first water treatment and the second water treatment (S50).

[0122] Next, the water shortage float 260 determines whether the electrolytic cell 200 is short of water (S52). If it is determined that the electrolytic cell 200 is not short of water (S52 "No"), the process returns to step 50. If it is determined that the electrolytic cell 200 is short of water (S52 "Yes"), a smaller amount of water than full is supplied from the water storage tank 100 to the electrolytic cell 200 (S54).

[0123] Next, electrolysis promoter 410 is supplied to electrolytic cell 200 (S56).

[0124] Next, water is supplied from the water storage tank 100 to the electrolytic cell 200 until it is full (S58).

[0125] Next, the electrode section 210 performs electrolysis for 10 minutes (S60).

[0126] Next, electrolyzed water is supplied from the electrolyzer 200 to the mixing tank 300 (S62).

[0127] Next, the control unit 500 resets the cumulative value of the consumption of electrolyzed water and the cumulative value of the air volume setting (S64).

[0128] Next, the control unit 500 begins accumulating the airflow setting (S66). Additionally, the control unit 500 begins accumulating the consumption of electrolyzed water based on the airflow setting and purification setting (S68).

[0129] Next, water is supplied from the water storage tank 100 to the electrolytic cell 200 until it is full (S70).

[0130] Next, the electrode section 210 performs electrolysis for 40 minutes (S72).

[0131] Next, the control unit 500 determines whether the cumulative consumption of electrolyzed water is greater than or equal to the previous supply amount (S74). If the cumulative consumption is not greater than or equal to the previous supply amount (S74 "No"), the process returns to step 74. If the cumulative consumption is greater than or equal to the previous supply amount (S74 "Yes"), the control unit 500 determines the supply of electrolyzed water (S76).

[0132] Next, the control unit 500 calculates the average air volume (S78) and determines the supply of electrolyzed water based on the average air volume and the purification setting (S80).

[0133] Next, a determined amount of electrolyzed water is supplied from the electrolyzer 200 to the mixing tank 300 (S82).

[0134] Next, the control unit 500 resets the cumulative value of water consumption and the cumulative value of air volume setting (S84).

[0135] Next, the control unit 500 begins accumulating the airflow setting (S86). Additionally, the control unit 500 begins accumulating the consumption of electrolyzed water based on the airflow setting and purification setting (S88).

[0136] Next, at least one of the first water supply treatment and the second water supply treatment is performed (S90).

[0137] Next, the water shortage float 260 determines whether the electrolytic cell 200 is short of water (S92). If it is determined that the electrolytic cell 200 is not short of water (S92 "No"), the process returns to step 90. If it is determined that the electrolytic cell 200 is short of water (S92 "Yes"), the process returns to step 54.

[0138] According to this embodiment, since the supply amount of hypochlorous acid water is determined based on the purification setting and the airflow setting, an appropriate amount of hypochlorous acid water can be supplied. Furthermore, since the supply amount of hypochlorous acid water for the next supply is determined based on the purification setting, the airflow setting since the last supply time, and the elapsed time since the last supply, an appropriate amount of hypochlorous acid water can be supplied. Moreover, because an appropriate amount of hypochlorous acid water can be supplied, an amount of reactive oxygen species suitable for the operating environment can be released. Furthermore, since the average airflow setting since the last time is calculated, and the supply amount of hypochlorous acid water for the next supply is determined based on the average of the purification setting and the airflow setting, the accuracy of the hypochlorous acid water supply can be improved. Additionally, because the accuracy of the hypochlorous acid water supply can be improved, the accuracy of the release of reactive oxygen species suitable for the operating environment can also be improved.

[0139] Furthermore, since the cumulative consumption of hypochlorous acid water per unit time exceeds the supply amount of hypochlorous acid water in the previous time period, the supply of hypochlorous acid water for the next time period is determined, allowing for the supply of hypochlorous acid water at appropriate times. Additionally, because hypochlorous acid water can be supplied at appropriate times, an appropriate amount of reactive oxygen species can be released for the operating environment. Furthermore, since the airflow setting is determined based on environmental variables, an airflow rate appropriate to the environment can be set. Moreover, because at least one of the gas type and gas concentration, and at least one of humidity and temperature are used as environmental variables, the environmental variables can reflect the surrounding conditions.

[0140] Furthermore, when the water volume in the mixing tank 300 decreases from the first threshold to the second threshold, water is supplied until the water volume in the mixing tank 300 reaches the first threshold before supplying hypochlorous acid water, thus ensuring timely water supply. Also, when the water volume in the mixing tank 300 decreases from the first threshold to the second threshold, water is supplied until the water volume in the mixing tank 300 reaches the first threshold before supplying hypochlorous acid water, thus preventing the concentration of hypochlorous acid water in the mixing tank 300 from becoming excessively high. Furthermore, because the concentration of hypochlorous acid water in the mixing tank 300 can be prevented from becoming excessively high, safety is improved. Additionally, because water is supplied to the mixing tank 300 after supplying hypochlorous acid water, and the water volume in the mixing tank 300 is below the first threshold, the concentration of hypochlorous acid water can be prevented from becoming excessively high.

[0141] Furthermore, since the system is divided into a water storage tank 100, an electrolytic cell 200, and a mixing tank 300, gas-liquid contact between the water in the electrolytic cell 200 used on the electrode section 210 can be suppressed. Additionally, because gas-liquid contact between the water in the electrolytic cell 200 and the electrode is suppressed, the water in the electrolytic cell 200 is less prone to contamination. Furthermore, because the water in the electrolytic cell 200 is less prone to contamination, electrode degradation can be suppressed. Furthermore, because the second concentration of electrolyzed water is supplied to and released into the mixing tank 300, the time until the electrolyzed water is released can be shortened. Furthermore, because the second concentration of electrolyzed water is used to generate the first concentration of electrolyzed water, the desired concentration of electrolyzed water can be released. Furthermore, because the electrolysis promoter 410 is added to the supply area 240 and water is supplied to the supply area 240, the dissolution of the electrolysis promoter 410 can be promoted using water pressure. Furthermore, because the first concentration of electrolyzed water is generated through normal processing after water is supplied to the electrolytic cell 200, the electrolysis promoter 410 is easily dissolved.

[0142] Furthermore, since water is supplied to the electrolyzer 200 via the first supply unit 128 when a water shortage is detected, water supply is not required before a water shortage is detected. Also, because water supply is not required before a water shortage is detected, the concentration of the electrolyzed water in the electrolyzer 200 can be maintained. Additionally, because water supply is not required before a water shortage is detected, impurities remaining in the electrolyzer 200 can be flushed away. Since the initial treatment is performed as part of the restart process, the operation is simplified.

[0143] An outline of one aspect of the present invention is described below. One aspect of the space purification device (1000) of the present invention includes: an electrolytic cell (200) for storing water supplied from the outside; an electrode section (210) disposed in the electrolytic cell (200) for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell (200); a mixing tank (300) for mixing hypochlorous acid water and water to generate mixed water; and a hypochlorous acid water supply section (22) for supplying hypochlorous acid water from the electrolytic cell (200) to the mixing tank (300). 8) A water supply unit (138) that supplies water to the mixing tank (300); an air supply unit (518) that draws in air from the air intake based on a preset airflow setting; a purification unit (310) that brings the mixed water stored in the mixing tank (300) into contact with the air drawn in from the air intake; and a control unit (500) that controls the electrode unit (210), the hypochlorous acid water supply unit (228), the water supply unit (138), and the air supply unit (518). The control unit (500) determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit (228) based on the purification setting and airflow setting that indicate the purification capacity required by the purification unit (310).

[0144] Another aspect of the space purification device (1000) of the present invention includes: an electrolytic cell (200) for storing water supplied from the outside; an electrode section (210) disposed in the electrolytic cell (200) for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell (200); a mixing tank (300) for mixing hypochlorous acid water with water to generate mixed water; and a hypochlorous acid water supply section (22) for supplying hypochlorous acid water from the electrolytic cell (200) to the mixing tank (300). 8) A water supply unit (138) that supplies water to the mixing tank (300); an air supply unit (518) that draws in air from the air intake based on a preset airflow setting; a purification unit (310) that brings the mixed water stored in the mixing tank (300) into contact with the air drawn in from the air intake; and a control unit (500) that controls the electrode unit (210), the hypochlorous acid water supply unit (228), the water supply unit (138), and the air supply unit (518). The control unit (500) determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit (228) for the next supply based on the purification setting indicating the required purification capacity of the purification unit (310), the airflow setting since the last time the hypochlorous acid water was supplied, and the elapsed time since the last time.

[0145] Alternatively, the control unit (500) can calculate the average value of the air volume setting after the last time based on the air volume setting for each unit of time since the last time, and determine the supply amount of hypochlorous acid water to be supplied by the hypochlorous acid water supply unit (228) next time based on the average value of the purification setting and the air volume setting.

[0146] Alternatively, the control unit (500) calculates the consumption of hypochlorous acid water per unit time based on the air volume setting and purification setting per unit time since the last time, accumulates the consumption of hypochlorous acid water per unit time, and if the accumulated consumption is greater than or equal to the supply of hypochlorous acid water in the previous time, the hypochlorous acid water supply unit (228) supplies hypochlorous acid water for the next time.

[0147] Alternatively, the control unit (500) may have an airflow determination unit (540) that determines the airflow setting for the air supply unit (518). Alternatively, the airflow determination unit (540) may determine the airflow setting based on environmental variables.

[0148] Alternatively, the space purification device (1000) may also include at least one of a gas sensor (520) for detecting gas, a humidity sensor (522) for detecting humidity, and a temperature sensor (524) for detecting temperature. Alternatively, the environmental variable may be at least one of the gas type and gas concentration obtained by the gas sensor (520), the humidity obtained by the humidity sensor (522), and the temperature obtained by the temperature sensor (524).

[0149] Alternatively, when the water volume in the mixing tank (300) decreases from the first threshold to the second threshold, the control unit (500) supplies water to the water supply unit (138) until the water volume in the mixing tank (300) reaches the first threshold and the second threshold is less than the first threshold, before the hypochlorous acid water supply unit (228) supplies hypochlorous acid water to the mixing tank (300).

[0150] Alternatively, the control unit (500) may supply water to the mixing tank (300) after the hypochlorous acid water supply unit (228) supplies water to the mixing tank (300) when the water volume in the mixing tank (300) is less than the first threshold. This water supply unit (138) may supply water until the water volume in the mixing tank (300) reaches the first threshold.

[0151] Another aspect of the space purification device (1000) of the present invention includes: an electrolytic cell (200) for storing water supplied from the outside; an electrode section (210) disposed in the electrolytic cell (200) for generating hypochlorous acid water of a predetermined concentration from the water stored in the electrolytic cell (200); a mixing tank (300) for mixing hypochlorous acid water and water to generate mixed water; and a hypochlorous acid water supply section (22) for supplying hypochlorous acid water from the electrolytic cell (200) to the mixing tank (300). 8) A water supply unit (138) that supplies water to the mixing tank (300); an air supply unit (518) that draws in air from the air intake based on a preset airflow setting; a purification unit (310) that brings the mixed water stored in the mixing tank (300) into contact with the air drawn in from the air intake; and a control unit (500) that controls the electrode unit (210), the hypochlorous acid water supply unit (228), the water supply unit (138), and the air supply unit (518). The control unit (500) has an airflow determination unit (540) that determines the airflow setting set for the air supply unit (518). The airflow determination unit (540) determines the airflow setting based on environmental variables.

[0152] Alternatively, the space purification device (1000) may also include at least one of a gas sensor (520) for detecting gas, a humidity sensor (522) for detecting humidity, and a temperature sensor (524) for detecting temperature. Alternatively, the environmental variable may be at least one of the gas type and gas concentration obtained by the gas sensor (520), the humidity obtained by the humidity sensor (522), and the temperature obtained by the temperature sensor (524).

[0153] The present invention has been described above based on embodiments. Those skilled in the art will understand that these embodiments are illustrative, and various modifications can be made to the combination of these constituent elements or processing steps, and such modifications are also within the scope of the present invention.

[0154] In this embodiment, a gas sensor 520, a humidity sensor 522, and a temperature sensor 524 are included. However, it is not limited to this; for example, more than one of them may be included. According to this variation, the degree of freedom of the structure can be increased.

[0155] Additionally, the control unit 500 can also supply hypochlorous acid water to the hypochlorous acid water supply unit (third supply unit 228) when the drainage detection unit detects that water or hypochlorous acid water has been discharged from the mixing tank 300. In this embodiment, the drainage detection unit refers to the drainage float 370, which can detect whether water or hypochlorous acid water in the mixing tank 300 has reached the position of the drainage float 370. The state where water or hypochlorous acid water is not present at the position of the drainage float 370 means that water or hypochlorous acid water in the mixing tank 300 has been discharged; the state where water or hypochlorous acid water is present at the position of the drainage float 370 means that water or hypochlorous acid water in the mixing tank 300 has not been discharged. That is, the drainage float 370 can detect whether water or hypochlorous acid water in the mixing tank 300 has been discharged.

[0156] As an example, whenever the space purification device 1000 operates for a predetermined period, the control unit 500 notifies the user that the water or hypochlorous acid water in the mixing tank 300 needs to be drained. The control unit 500 notifies the user, for example, by providing a notification unit within the space purification device 1000. When drainage of the water or hypochlorous acid water from the mixing tank 300 is required, the control unit 500 notifies the user via the notification unit. Upon receiving the notification from the notification unit, the user drains the water or hypochlorous acid water from the mixing tank 300. Afterwards, the drainage detection unit detects that the water or hypochlorous acid water in the mixing tank 300 has been drained.

[0157] Alternatively, when the drainage detection unit detects that drainage has occurred, the control unit 500 sets the supply amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit to the maximum settable supply amount. In this embodiment, the control unit 500 supplies hypochlorous acid water to the hypochlorous acid water supply unit at the maximum settable supply amount "A3". Since the mixing tank 300 is completely free of hypochlorous acid water after drainage by the user, sufficient hypochlorous acid water can be supplied to the mixing tank 300. As a result, air that has come into contact with the hypochlorous acid water (electrolyzed water) in the mixing tank 300 can be released to the outside of the space purification device 1000 at an earlier stage. Furthermore, a sufficient amount of hypochlorous acid (active oxygen species) can be supplied to the space where the space purification device 1000 is installed.

[0158] Alternatively, the drainage detection unit may not be a drainage float. For example, an input unit may be provided, where the user inputs drainage completion information after draining the mixing tank 300. The drainage detection unit detects whether the water or hypochlorous acid water in the mixing tank 300 has been discharged by detecting the user's input of drainage completion information.

[0159] Explanation of reference numerals in the attached figures

[0160] 100 water storage tank 110 water supply tank

[0161] 112 cover 120 first pump

[0162] 122 First water supply pipe, 124 Supply port

[0163] 128 First Supply Department 130 Second Pump

[0164] 132 Second Water Supply Pipe

[0165] 138 Second Supply Department (Water Supply Department)

[0166] 160 water shortage float, 200 electrolytic cell

[0167] 210 Electrode Section 220 Third Pump

[0168] 222 Third water supply pipe; 224 Metering container

[0169] 226 Third water supply pipe

[0170] 228 Third Supply Department (Hypochlorous Acid Water Supply Department)

[0171] 240 supply area, 250 full-water floats

[0172] 260 water shortage float 300 mixing tank

[0173] 310 purification unit, 350 full-water float

[0174] 360° water shortage float; 370° drainage float.

[0175] 400 Electrolysis Accelerator Input Section 404 Input Port

[0176] 410 Electrolysis Accelerator; 460 Electrolyzed Water Generation Section

[0177] 500 Control Unit 516 Operation Unit

[0178] 518 air supply unit, 520 gas sensor

[0179] 522 Humidity Sensor 524 Temperature Sensor

[0180] 530 Storage Department 540 Airflow Determination Department

[0181] 1000 Space Purification Device.

Claims

1. A space purification device, characterized in that, include: An electrolytic cell for storing water supplied from an external source; An electrode section disposed in the electrolytic cell to generate hypochlorous acid water of a specified concentration from the water stored in the electrolytic cell; A mixing tank is used to mix hypochlorous acid water with water to generate mixed water; Hypochlorous acid water supply unit that supplies hypochlorous acid water from the electrolytic cell to the mixing tank; A water supply unit that supplies water to the mixing tank; An air supply unit that draws in air from the intake port based on a preset air volume setting; A purification section that brings the mixed water stored in the mixing tank into contact with the air drawn in from the air intake. and A control unit that controls the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit based on the purification setting indicating the required purification capacity of the purification unit and the airflow setting. The control unit calculates the average value of the airflow setting since the last time the hypochlorous acid water was supplied, based on the airflow setting per unit time since the last time. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit for the next time, based on the average value of the purification setting and the air volume setting. The control unit calculates the consumption of hypochlorous acid water per unit time based on the airflow setting and purification setting per unit time since the last time. The control unit accumulates the consumption of hypochlorous acid water per unit time. When the accumulated consumption amount exceeds the supply amount of hypochlorous acid water in the previous time period, the control unit causes the hypochlorous acid water supply unit to supply hypochlorous acid water for the next time period.

2. A space purification device, characterized in that, include: An electrolytic cell for storing water supplied from an external source; An electrode section disposed in the electrolytic cell to generate hypochlorous acid water of a specified concentration from the water stored in the electrolytic cell; A mixing tank is used to mix hypochlorous acid water with water to generate mixed water; Hypochlorous acid water supply unit that supplies hypochlorous acid water from the electrolytic cell to the mixing tank; A water supply unit that supplies water to the mixing tank; An air supply unit that draws in air from the intake port based on a preset air volume setting; A purification section that brings the mixed water stored in the mixing tank into contact with the air drawn in from the air intake. and A control unit that controls the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit for the next supply based on the purification setting indicating the required purification capacity of the purification unit, the airflow setting since the last time hypochlorous acid water was supplied, and the elapsed time since the last time. The control unit calculates the consumption of hypochlorous acid water per unit time based on the airflow setting and purification setting for each unit time since the last time. The control unit accumulates the consumption of hypochlorous acid water per unit time. When the accumulated consumption amount exceeds the supply amount of hypochlorous acid water in the previous time period, the control unit causes the hypochlorous acid water supply unit to supply hypochlorous acid water for the next time period.

3. The space purification device according to claim 1 or 2, characterized in that: The control unit includes an airflow determination unit that determines the airflow setting for the air supply unit. The airflow determination unit determines the airflow setting based on environmental variables.

4. The space purification device according to claim 3, characterized in that: It also includes at least one of a gas sensor for detecting gases, a humidity sensor for detecting humidity, and a temperature sensor for detecting temperature. The environmental variable is at least one of the type of gas and the concentration of the gas obtained by the gas sensor, the humidity obtained by the humidity sensor, and the temperature obtained by the temperature sensor.

5. The space purification device according to claim 1 or 2, characterized in that: When the water level in the mixing tank decreases from a first threshold to a second threshold, the control unit, before supplying hypochlorous acid water to the mixing tank from the hypochlorous acid water supply unit, causes the water supply unit to supply water until the water level in the mixing tank reaches the first threshold. The second threshold is less than the first threshold.

6. The space purification device according to claim 1 or 2, characterized in that: After the hypochlorous acid water supply unit supplies the hypochlorous acid water to the mixing tank, if the water volume in the mixing tank is less than a first threshold, the control unit causes the water supply unit to supply water until the water volume in the mixing tank reaches the first threshold.

7. The space purification device according to claim 5, characterized in that: After the hypochlorous acid water supply unit supplies the hypochlorous acid water to the mixing tank, if the water volume in the mixing tank is less than the first threshold, the control unit causes the water supply unit to supply water until the water volume in the mixing tank reaches the first threshold.

8. A space purification device, characterized in that, include: An electrolytic cell for storing water supplied from an external source; An electrode section disposed in the electrolytic cell to generate hypochlorous acid water of a specified concentration from the water stored in the electrolytic cell; A mixing tank is used to mix hypochlorous acid water with water to generate mixed water; Hypochlorous acid water supply unit that supplies hypochlorous acid water from the electrolytic cell to the mixing tank; A water supply unit that supplies water to the mixing tank; An air supply unit that draws in air from the intake port based on a preset air volume setting; A purification section that brings the mixed water stored in the mixing tank into contact with the air drawn in from the air intake. and A control unit that controls the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control unit includes an airflow determination unit that determines the airflow setting for the air supply unit. The airflow determination unit determines the airflow setting based on environmental variables. The control unit calculates the average value of the airflow setting since the last time the hypochlorous acid water was supplied, based on the airflow setting per unit time since the last time. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit for the next time, based on the average value of the purification setting, which represents the required purification capacity of the purification unit, and the airflow setting. The control unit calculates the consumption of hypochlorous acid water per unit time based on the airflow setting and purification setting per unit time since the last time. The control unit accumulates the consumption of hypochlorous acid water per unit time. When the accumulated consumption amount exceeds the supply amount of hypochlorous acid water in the previous time period, the control unit causes the hypochlorous acid water supply unit to supply hypochlorous acid water for the next time period.

9. A space purification device, characterized in that, include: An electrolytic cell for storing water supplied from an external source; An electrode section disposed in the electrolytic cell to generate hypochlorous acid water of a specified concentration from the water stored in the electrolytic cell; A mixing tank is used to mix hypochlorous acid water with water to generate mixed water; Hypochlorous acid water supply unit that supplies hypochlorous acid water from the electrolytic cell to the mixing tank; A water supply unit that supplies water to the mixing tank; An air supply unit that draws in air from the intake port based on a preset air volume setting; A purification section that brings the mixed water stored in the mixing tank into contact with the air drawn in from the air intake. and A control unit that controls the electrode section, the hypochlorous acid water supply section, the water supply section, and the air supply section. The control unit includes an airflow determination unit that determines the airflow setting for the air supply unit. The airflow determination unit determines the airflow setting based on environmental variables. The control unit determines the amount of hypochlorous acid water supplied by the hypochlorous acid water supply unit for the next supply based on the purification setting indicating the required purification capacity of the purification unit, the airflow setting since the last time hypochlorous acid water was supplied, and the elapsed time since the last time. The control unit calculates the consumption of hypochlorous acid water per unit time based on the airflow setting and purification setting for each unit time since the last time. The control unit accumulates the consumption of hypochlorous acid water per unit time. When the accumulated consumption amount exceeds the supply amount of hypochlorous acid water in the previous time period, the control unit causes the hypochlorous acid water supply unit to supply hypochlorous acid water for the next time period.

10. The space purification device according to claim 8 or 9, characterized in that: It also includes at least one of a gas sensor for detecting gases, a humidity sensor for detecting humidity, and a temperature sensor for detecting temperature. The environmental variable is at least one of the type of gas and the concentration of the gas obtained by the gas sensor, at least one of the humidity obtained by the humidity sensor and the temperature obtained by the temperature sensor.

11. The space purification device according to any one of claims 1, 2, 8, and 9, characterized in that: Includes a drainage detection unit that detects whether the water or the hypochlorous acid water in the mixing tank has been discharged. When the drainage detection unit detects that the water or the hypochlorous acid water has been discharged, the control unit causes the hypochlorous acid water supply unit to supply the hypochlorous acid water.

12. The space purification device according to claim 11, characterized in that: When the drainage detection unit detects that the water or the hypochlorous acid water has been discharged, the control unit sets the supply amount of the hypochlorous acid water supply unit to the maximum settable supply amount.

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