WO2023074166A1 - 次亜塩素酸水供給装置 - Google Patents

次亜塩素酸水供給装置 Download PDF

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Publication number
WO2023074166A1
WO2023074166A1 PCT/JP2022/034360 JP2022034360W WO2023074166A1 WO 2023074166 A1 WO2023074166 A1 WO 2023074166A1 JP 2022034360 W JP2022034360 W JP 2022034360W WO 2023074166 A1 WO2023074166 A1 WO 2023074166A1
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Prior art keywords
water
hypochlorous acid
electrolytic cell
water supply
unit
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PCT/JP2022/034360
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English (en)
French (fr)
Japanese (ja)
Inventor
伎朗 松本
智裕 林
将秀 福本
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202280071310.5A priority Critical patent/CN118139822A/zh
Publication of WO2023074166A1 publication Critical patent/WO2023074166A1/ja

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis

Definitions

  • the present disclosure relates to a hypochlorous acid water supply device that generates and feeds hypochlorous acid water by electrolysis.
  • hypochlorous acid is supplied by linking with the purification system, and the air supplied indoors is air containing purification components (active oxygen species such as hypochlorous acid).
  • purification components active oxygen species such as hypochlorous acid.
  • an air-conditioning system that sterilizes a space by contacting a liquid contact member portion and discharging it (see, for example, Patent Literature 1).
  • hypochlorous acid water supply device when an electrolytic solution (for example, an aqueous sodium chloride solution) in which an electrolyte and tap water are mixed is electrolyzed in an electrolytic cell to generate hypochlorous acid water, there is a risk that calcium, magnesium, etc., will precipitate and accumulate as scales, and will adhere to movable members such as water level sensors or pumps in the electrolytic cell, or clog water channels. Therefore, cleaning maintenance, such as manual descaling, has been performed, and such maintenance has been troublesome.
  • an electrolytic solution for example, an aqueous sodium chloride solution
  • electrolyte and tap water in which an electrolyte and tap water are mixed
  • the purpose of the present disclosure is to provide a technique for reducing the frequency of cleaning maintenance for removing scale accumulated in the electrolytic cell and improving the maintainability of the hypochlorous acid water supply device.
  • the hypochlorous acid water supply device includes an electrolytic cell that electrolyzes an electrolytic solution in which an electrolyte and water are mixed to generate hypochlorous acid water, and an electrolyte supply unit that supplies the electrolyte to the electrolytic cell. , a water supply unit for supplying water to the electrolytic cell, and a water supply unit for supplying the hypochlorous acid water generated in the electrolytic cell to the outside. Then, when the supply of hypochlorous acid water from the electrolytic cell to the outside is completed, the water supply unit starts supplying water to the electrolytic cell as cleaning processing of the electrolytic cell, and the supply of water to the electrolytic cell is stopped. The electrolytic cell is drained by the water supply unit within a predetermined time after completion.
  • an electrolytic cell that electrolyzes an electrolytic solution in which an electrolyte and water are mixed to generate hypochlorous acid water, and an electrolyte that is supplied to the electrolytic cell It comprises an electrolyte supply unit, a water supply unit that supplies the water to the electrolytic cell, and a water supply unit that supplies the hypochlorous acid water produced in the electrolytic cell to the outside. Then, when the supply of hypochlorous acid water from the electrolytic cell to the outside is completed, the electrolytic cell is drained by the water supply unit while the water supply unit supplies water to the electrolytic cell as the cleaning process of the electrolytic cell. is done.
  • FIG. 1 is a diagram showing the configuration of a space purification system including a hypochlorous acid water supply device according to Embodiment 1 of the present disclosure.
  • FIG. 2 is a block diagram showing the configuration of an air purification control unit included in the hypochlorous acid water supply apparatus according to Embodiment 1 of the present disclosure.
  • the hypochlorous acid water supply device includes an electrolytic cell that electrolyzes an electrolytic solution in which an electrolyte and water are mixed to generate hypochlorous acid water, and an electrolyte supply unit that supplies the electrolyte to the electrolytic cell. , a water supply unit for supplying water to the electrolytic cell, and a water supply unit for supplying the hypochlorous acid water produced in the electrolytic cell to the outside. Then, when the supply of hypochlorous acid water from the electrolytic cell to the outside is completed, the water supply unit starts supplying water to the electrolytic cell as cleaning processing of the electrolytic cell, and the supply of water to the electrolytic cell is stopped. The electrolytic cell is drained by the water supply unit within a predetermined time after completion.
  • the water supply from the water supply unit scatters the scale residue, and the water containing the scale residue is electrolyzed in a state in which the scale residue is scattered in the water by the drainage within a predetermined time after the completion of the water supply. Drain from the tank. Therefore, accumulation of scale residue in the electrolytic cell is suppressed. As a result, the frequency of cleaning maintenance for removing the scale accumulated in the electrolytic cell can be reduced, and the maintainability of the hypochlorous acid water supply apparatus can be improved.
  • the predetermined time is set within the time until the scale residue scattered in the electrolytic cell by the water supplied from the water supply unit settles in the electrolytic cell. good too.
  • the cleaning process may be repeated multiple times.
  • an electrolytic cell that electrolyzes an electrolytic solution in which an electrolyte and water are mixed to generate hypochlorous acid water, and an electrolyte that is supplied to the electrolytic cell It comprises an electrolyte supply unit, a water supply unit that supplies the water to the electrolytic cell, and a water supply unit that supplies the hypochlorous acid water produced in the electrolytic cell to the outside. Then, when the supply of hypochlorous acid water from the electrolytic cell to the outside is completed, the electrolytic cell is drained by the water supply unit while the water supply unit supplies water to the electrolytic cell as the cleaning process of the electrolytic cell. is done.
  • the cleaning process may be performed for a predetermined time.
  • the cleaning process may be repeated multiple times.
  • the water supply unit is connected to an external space purification device, and the wastewater from the water supply unit is discharged from the space purification device. It may be carried out by circulating.
  • the cleaning process can be performed without providing a separate drainage path for the hypochlorous acid water supply device.
  • FIG. 1 is a diagram showing a configuration of a space purification system 100 including a hypochlorous acid water supply device (hypochlorous acid water generation unit 30) according to Embodiment 1 of the present disclosure.
  • the space purification system 100 When circulating the air in the indoor space 18, the space purification system 100 performs cooling processing (dehumidification processing) or heating processing on the air 8 (RA) from the indoor space 18 as necessary, and circulates the air inside. It is a device that makes the air 8 containing fine water and a component that purifies the air (hereinafter also simply referred to as an "air cleaning component").
  • the space purification system 100 sterilizes and deodorizes the indoor space 18 by supplying the air 9 (SA) that has circulated inside to the indoor space 18 .
  • SA air 9
  • hypochlorous acid is used as the air purification component
  • the water containing the air purification component is an aqueous solution containing hypochlorous acid (hypochlorous acid water).
  • the space purification system 100 mainly includes a space purification device 10, an air conditioner 15, and a hypochlorous acid water generator 30, as shown in FIG.
  • the hypochlorous acid water generator 30 is also referred to as a hypochlorous acid water supply device.
  • the space purification device 10 includes an air outlet 3, an air purification section 11, and an air purification control section 41.
  • the air conditioner 15 includes a suction port 2 , a blower 13 , a refrigerant coil 14 , and an air conditioning controller 42 .
  • Each of the space purification device 10 and the air conditioner 15 has a housing that constitutes the outer frame of the device, and the space purification device 10 and the air conditioner 15 are connected by a duct 24 .
  • the suction port 2 is formed on the side of the air conditioner 15 and the outlet 3 is formed on the side of the space cleaning device 10 .
  • the intake port 2 is an intake port that takes in the air 8 from the indoor space 18 into the air conditioner 15 .
  • the suction port 2 communicates through a duct 16 with an indoor suction port 16 a provided on the ceiling of an indoor space 18 or the like. As a result, the air inlet 2 can draw air in the indoor space 18 into the air conditioner 15 from the indoor air inlet 16a.
  • the air outlet 3 is an outlet for discharging the air 9 (SA) that has flowed through the space purification device 10 into the indoor space 18 .
  • the air outlet 3 communicates through a duct 17 with an indoor air outlet 17 a provided on the ceiling of an indoor space 18 or the like. As a result, the air outlet 3 can blow out the air 9 that has circulated inside the space cleaning device 10 toward the indoor space 18 from the indoor air outlet 17a.
  • air passages front air passage 4, middle air passage 5, rear air passage 6) communicating the suction port 2 and the air outlet 3 through the duct 24.
  • the front air passage 4 is an air passage adjacent to the suction port 2 .
  • a blower 13 and a refrigerant coil 14 are provided in the front air passage 4 .
  • the middle air passage 5 is an air passage through which the air 8 that has flowed through the front air passage 4 flows, at a position adjacent to the front air passage 4 (duct 24).
  • the middle air passage 5 is provided with an air purifier 11 in the air passage.
  • the rear air passage 6 is an air passage adjacent to the outlet 3, and in the rear air passage 6, the air 8 that has flowed through the middle air passage 5 flows through the air purification unit 11 and is purified with hypochlorous acid along with water that has been made finer. becomes air 9 containing
  • the air 8 sucked from the suction port 2 flows through the front air passage 4, the middle air passage 5 and the rear air passage 6, and is released as air 9 from the air outlet 3. blown out.
  • the blower 13 of the air conditioner 15 is a device for conveying the air 8 (RA) in the indoor space 18 from the suction port 2 into the air conditioner 15 .
  • the blower 13 is installed upstream of the refrigerant coil 14 in the front air passage 4 .
  • on/off of operation is controlled according to the blowing output information from the air conditioning control section 42 .
  • the air 8 in the indoor space 18 is taken into the air conditioner 15 and directed toward the refrigerant coil 14 .
  • the refrigerant coil 14 is a member arranged downstream of the blower 13 in the front air passage 4 to cool or heat the introduced air 8 .
  • the refrigerant coil 14 changes its output state (cooling, heating, or off) in accordance with the output signal from the air conditioning control unit 42 to change the cooling capacity (cooling amount) or heating capacity (heating amount) for the introduced air 8. adjust.
  • the introduced air 8 is cooled, the introduced air 8 is dehumidified. I can say.
  • the refrigerant coil 14 functions as a heat absorber or a heat radiator in a refrigeration cycle including a compressor, a radiator, an expander, and a heat absorber. is configured to absorb (cool) or dissipate (heat) heat to More specifically, the refrigerant coil 14 is connected to the outdoor unit 20 via a refrigerant circuit 21 through which refrigerant flows.
  • the outdoor unit 20 is an outdoor unit installed in the outdoor space 19, and has a compressor 20a, an expander 20b, an outdoor heat exchanger 20c, a blower fan 20d, and a four-way valve 20e. Since the outdoor unit 20 has a general configuration, detailed description of each device (compressor 20a, expander 20b, outdoor heat exchanger 20c, blower fan 20d, and four-way valve 20e) is omitted.
  • the four-way valve 20e Since the four-way valve 20e is connected to the refrigeration cycle including the refrigerant coil 14, in the air conditioner 15, the four-way valve 20e allows the refrigerant to flow in the first direction to cool and dehumidify the air (air 8). It is possible to switch between a cooling mode (dehumidifying mode) and a heating mode in which the four-way valve 20e circulates the refrigerant in the second direction to heat the air (air 8).
  • the first direction is the direction in which the refrigerant flows through the compressor 20a, the outdoor heat exchanger 20c, the expander 20b, and the refrigerant coil 14 in this order.
  • the second direction is the direction in which the refrigerant flows through the compressor 20a, the refrigerant coil 14, the expander 20b, and the outdoor heat exchanger 20c in this order.
  • the refrigerant coil 14 can cool or heat the introduced air (air 8).
  • the air purifier 11 of the space purifier 10 is a unit for humidifying the air 8 that is taken inside. During humidification, the air is made to contain hypochlorous acid together with finely divided water. More specifically, the air purification section 11 has a water level sensor 90, a mixing tank 92, a humidification motor 11a, and a humidification nozzle 11b. The air purifying unit 11 rotates the humidifying nozzle 11b using the humidifying motor 11a, sucks up the water (hypochlorous acid water) stored in the mixing tank 92 of the air purifying unit 11 by centrifugal force, and spreads it around (in the centrifugal direction). .
  • the air purification unit 11 changes the rotation speed (hereinafter referred to as rotation output value) of the humidification motor 11a according to the output signal from the air purification control unit 41 to adjust the humidification capacity (humidification amount).
  • the amount of humidification can also be said to be the amount of addition of hypochlorous acid to the air.
  • the water level sensor 90 measures the water level of hypochlorous acid water (mixed water) in the mixing tank 92 and outputs the measured value to the air purification control section 41 .
  • the mixing tank 92 is a tank that stores the hypochlorous acid water in the air purifying section 11, and can also be said to be a water storage section.
  • the supplied water is mixed in the tank and stored as mixed water composed of diluted hypochlorous acid water.
  • the hypochlorous acid water generator 30 includes an electrolytic cell 31 , an electrode 32 , an electromagnetic valve 33 , a salt water tank 34 , a salt water transfer pump 35 , a water level sensor 39 , and a hypochlorous acid water supply unit 36 .
  • the hypochlorous acid water generating unit 30 corresponds to the "hypochlorous acid water supply unit" in the claims
  • the hypochlorous acid water supply unit 36 corresponds to the "water supply unit" in the claims.
  • the electromagnetic valve 33 controls whether tap water from a water supply pipe (a water pipe 52 described later) such as tap water is sent to the electrolytic cell 31 according to an output signal from the air purification control unit 41 .
  • the electromagnetic valve 33 constitutes a water supply unit 50 which will be described later.
  • the salt water tank 34 is a container that stores a liquid (salt water) containing chloride ions.
  • the salt water transfer pump 35 supplies the salt water in the salt water tank 34 to the electrolytic cell 31 according to the output signal from the air purification control unit 41 .
  • the salt water tank 34 and the salt water transfer pump 35 constitute a member corresponding to an "electrolyte supply section" in the claims.
  • the electrolytic cell 31 stores salt water to be electrolyzed supplied from the salt water tank 34 .
  • Tap water is also supplied to the electrolytic cell 31 from a water supply pipe (water pipe 52) of tap water or the like through an electromagnetic valve 33 in response to an output signal from the air purification control unit 41, and the supplied tap water and salt water are mixed. are mixed and a predetermined concentration of brine is pooled.
  • the electrode 32 is composed of a pair of electrodes.
  • the electrode 32 is arranged in the electrolytic bath 31 and electrolyzes salt water for a predetermined time by energization in response to an output signal from the air purification control unit 41 to generate hypochlorous acid water having a predetermined concentration.
  • the electrolytic cell 31 generates hypochlorous acid water by electrolyzing a chloride aqueous solution (for example, a sodium chloride aqueous solution) as an electrolyte between a pair of electrodes. Since a common device is used for the electrolytic cell 31, detailed description is omitted.
  • the electrolyte is an electrolyte that can generate hypochlorous acid water, and is not particularly limited as long as it contains chloride ions even in a small amount.
  • sodium chloride, calcium chloride, magnesium chloride, etc. are dissolved as a solute.
  • Aqueous solutions are mentioned. There is no problem with hydrochloric acid.
  • an aqueous sodium chloride solution (salt water) in which sodium chloride is added to water is used as the electrolyte.
  • the water level sensor 39 measures the water level in the electrolytic cell 31 and outputs the measured value to the air purification control section 41 .
  • the hypochlorous acid water supply unit 36 supplies hypochlorous acid water from the electrolytic cell 31 to the mixing tank 92 of the air purification unit 11 according to the output signal from the air purification control unit 41 .
  • the hypochlorous acid water supply unit 36 has a hypochlorous acid water transport pump 37 and a water pipe 38 .
  • the hypochlorous acid water transfer pump 37 sends out the hypochlorous acid water in the electrolytic cell 31 to the water pipe 38 according to the output signal from the air purification control unit 41 .
  • the water pipe 38 is connected between the hypochlorous acid water conveying pump 37 and the mixing tank 92 and feeds the hypochlorous acid water toward the mixing tank 92 .
  • the water supply unit 50 supplies water to the mixing tank 92 according to the output signal from the air purification control unit 41 .
  • the water supply unit 50 has an electromagnetic valve 51 and a water pipe 52 .
  • the water supply unit 50 also includes the electromagnetic valve 33 described above.
  • the electromagnetic valve 51 controls whether or not water supplied from a water pipe outside the space purification device 10 is allowed to flow through the water pipe 52 according to an output signal from the air purification control section 41 .
  • the water pipe 52 is connected between the electromagnetic valve 51 and the mixing tank 92 and feeds water toward the mixing tank 92 . Since the water supply unit 50 includes the electromagnetic valve 33 described above, it can be said that it corresponds to the "water supply unit" in the claims.
  • hypochlorous acid water from the hypochlorous acid water supply unit 36 and water from the water supply unit 50 are supplied to the mixing tank 92 . Then, the hypochlorous acid water and water are mixed in the mixing tank 92 of the air purifier 11 . That is, the hypochlorous acid water is mixed and diluted with water from the water supply unit 50 in the mixing tank 92 .
  • Mixed water of hypochlorous acid water and water can also be called hypochlorous acid water. More specifically, in the mixing tank 92 of the air purification unit 11, hypochlorous acid water from the hypochlorous acid water supply unit 36 or the water supply unit is added to the hypochlorous acid water remaining in the mixing tank 92 Water from 50 is fed and mixed.
  • the air purifier 11 discharges air containing hypochlorous acid water to the indoor space 18 by centrifugally crushing the mixed water of hypochlorous acid water and water stored in the mixing tank 92 .
  • the micronized hypochlorous acid water is discharged into the indoor space 18 with the liquid component evaporated.
  • An operation device 43 is installed on the wall surface of the indoor space 18 .
  • the operation device 43 has a user interface that can be operated by the user, and receives information from the user regarding the temperature setting value, the humidity setting value, and the operation of the humidification/purification operation.
  • the operating device 43 includes a temperature/humidity sensor 44 that measures the temperature and humidity of the air in the indoor space 18 .
  • a well-known technique may be used to measure the temperature and humidity in the temperature/humidity sensor 44, so the explanation is omitted here.
  • the operation device 43 is connected to the air purification control unit 41 and the air conditioning control unit 42 by wire or wirelessly, and in addition to information on the temperature setting value, the humidity setting value, the temperature measurement value, and the humidity measurement value, the humidification Information about the operation of the purification operation is transmitted to the air purification control section 41 and the air conditioning control section 42 . All of these pieces of information may be transmitted together, arbitrary two or more may be transmitted together, and each of them may be transmitted. Alternatively, the operation device 43 may transmit information to the air purification control section 41 , and the air purification control section 41 may transfer the information to the air conditioning control section 42 .
  • the air conditioning control unit 42 of the air conditioner 15 receives the temperature setting value and the temperature measurement value, and controls the refrigerant coil 14 and the outdoor unit 20 so that the temperature measurement value approaches the temperature setting value. In the heating mode, when the measured temperature value is lower than the set temperature value, the air conditioning control unit 42 increases the degree of heating as the difference between the measured temperature value and the set temperature value increases.
  • the air purification control unit 41 as the processing operations of the hypochlorous acid water generating unit 30 and the space purification device 10, relates to operations related to electrolysis processing in the electrolytic cell 31 and processing related to supply of hypochlorous acid water to the air purification unit 11. It controls the operation, the operation related to water supply processing to the air purification unit 11, the operation related to the humidification purification processing in the air purification unit 11, and the operation related to the cleaning processing of the electrolytic cell 31, respectively.
  • the air purification control unit 41 has a computer system having a processor and memory. The computer system functions as a controller by the processor executing the program stored in the memory. Although the program executed by the processor is recorded in advance in the memory of the computer system here, it may be recorded in a non-temporary recording medium such as a memory card and provided, or may be provided through a telecommunication line such as the Internet. may be provided through
  • FIG. 2 is a block diagram showing the configuration of the air purification control section 41.
  • the air purification control section 41 includes an input section 41a, a storage section 41b, a clock section 41c, a processing section 41d, and an output section 41e.
  • the air purification control unit 41 causes the following processes to be executed as operations related to the electrolysis process in the electrolytic cell 31 .
  • the air purification control unit 41 receives water level information (dry water signal) from the water level sensor 39 and information on time (time information) from the timing unit 41c as a trigger for electrolysis processing of the electrolytic cell 31, and outputs the information to the processing unit 41d. do.
  • the processing unit 41d identifies control information based on the water level information from the water level sensor 39, the time information from the clock unit 41c, and the setting information from the storage unit 41b, and outputs it to the output unit 41e.
  • the setting information includes information on the start time or end time of hypochlorous acid water generation, information on the supply amount of tap water to be introduced into the electrolytic cell 31, information on the amount of salt water supplied by the salt water transfer pump 35, and electrode Information on the electrolysis conditions (time, current value, voltage, etc.) in 32, information on the opening/closing timing of the electromagnetic valve 33, and information on the on/off operation of the hypochlorous acid water transfer pump 37 are included.
  • the electrolysis conditions for the electrode 32 can be determined from the amount of tap water in the electrolytic cell 31, the chloride ion concentration, the electrolysis time, and the degree of deterioration of the electrode 32, and are set by creating an algorithm. stored in
  • the output unit 41e outputs a signal (control signal) to each device (salt water conveying pump 35, solenoid valve 33, hypochlorous acid water conveying pump 37).
  • the salt water conveying pump 35 is kept stopped based on the signal from the output section 41e, and the hypochlorous acid water conveying pump 37 is stopped based on the signal from the output section 41e. maintain state.
  • the salt water conveying pump 35 starts operating based on a signal from the output section 41e, conveys a predetermined amount of salt water to the electrolytic cell 31, and then stops.
  • the electrolytic bath 31 is supplied with a predetermined amount of chloride ions.
  • the electromagnetic valve 33 is opened based on the signal from the output section 41e.
  • supply of tap water from the water pipe is started to the electrolytic cell 31 .
  • the electromagnetic valve 33 is closed based on the signal from the output section 41e that receives the water level information (full water) from the water level sensor 39.
  • FIG. As a result, the chloride ions are diluted with the tap water in the electrolytic cell 31, and an aqueous solution containing a predetermined amount of chloride ions (aqueous chloride solution) is generated.
  • the electrode 32 starts electrolyzing the chloride aqueous solution based on the signal from the output unit 41e, generates hypochlorous acid water under the set conditions, and stops the electrolysis.
  • the hypochlorous acid water generated by the electrode 32 has, for example, a hypochlorous acid concentration of 100 ppm to 150 ppm (eg, 120 ppm) and a pH of 7.0 to 8.5 (eg, 8.0). becomes.
  • the air purification control unit 41 performs electrolysis processing in the electrolytic cell 31 to generate hypochlorous acid water with a predetermined concentration and amount.
  • the air purification control unit 41 causes the following processing to be executed as operations related to the hypochlorous acid water supply processing to the air purification unit 11 .
  • the timer unit 41c measures the operation time of the humidification motor 11a as a trigger for supplying hypochlorous acid water to the air purification unit 11, and the operation time elapses for a predetermined time (for example, 60 minutes).
  • a hypochlorous acid water supply request is output to the hypochlorous acid water generating unit 30 (hypochlorous acid water supply unit 36).
  • the predetermined time is a time estimated in advance by experimental evaluation, based on the fact that hypochlorous acid in the hypochlorous acid water evaporates and decreases over time.
  • the processing unit 41d identifies the control information based on the time information (time information) from the clock unit 41c and the setting information from the storage unit 41b, and outputs the control information to the output unit 41e.
  • the setting information includes information about the hypochlorous acid water supply interval (for example, 60 minutes) and information about the ON/OFF operation of the hypochlorous acid water transfer pump 37 .
  • the output unit 41e outputs a signal (control signal) to the hypochlorous acid water transport pump 37 of the hypochlorous acid water supply unit 36 based on the received control information.
  • the hypochlorous acid water transport pump 37 operates based on the signal from the output section 41e. As a result, in the hypochlorous acid water generating unit 30, supply of hypochlorous acid water from the electrolytic cell 31 to the air purification unit 11 (mixing tank 92) is started. In addition, in order to ensure the concentration of the hypochlorous acid water stored in the electrolytic cell 31, when the hypochlorous acid water is supplied from the hypochlorous acid water generation unit 30 to the mixing tank 92, The hypochlorous acid water produced is supplied in full. Therefore, after the hypochlorous acid water is supplied, the electrolytic cell 31 is in an empty state, and the hypochlorous acid water is not started from the state where the hypochlorous acid water remains in the electrolytic cell 31. .
  • the water level sensor 39 outputs a water shortage signal as water level information when the hypochlorous acid water in the electrolytic cell 31 is completely supplied.
  • the hypochlorous acid water conveying pump 37 stops based on the signal from the output section 41e that receives the time information (required time for supplying the specified amount) from the clock section 41c.
  • the hypochlorous acid water generator 30 supplies the hypochlorous acid water from the electrolytic cell 31 to the air purification unit 11 (mixing tank 92) at the set supply amount.
  • the air purification control unit 41 causes the hypochlorous acid water supply process from the hypochlorous acid water generation unit 30 (the electrolytic cell 31) to the air purification unit 11 to be executed.
  • the control in which the air purification control unit 41 causes the hypochlorous acid water supply unit 36 to supply the hypochlorous acid water at predetermined time intervals is referred to as "first control".
  • the air purification control unit 41 causes the following processes to be executed as operations related to water supply processing to the air purification unit 11 .
  • the air purification control unit 41 receives water level information (dry water signal) from the water level sensor 90 of the space purification device 10 as a trigger for water supply processing to the air purification unit 11, and outputs a water supply request to the water supply unit 50. do.
  • the input unit 41a receives water level information (a water shortage signal) from the water level sensor 90 of the space purification device 10 and outputs it to the processing unit 41d.
  • water level information a water shortage signal
  • the processing unit 41d identifies and outputs control information based on the water level information (water shortage signal) from the input unit 41a, the time information (time information) from the clock unit 41c, and the setting information from the storage unit 41b. Output to the unit 41e.
  • the setting information includes information regarding the ON/OFF operation of the solenoid valve 51 of the water supply section 50 .
  • the output unit 41e outputs a signal (control signal) to the electromagnetic valve 51 based on the received control information.
  • the solenoid valve 51 operates based on the signal from the output section 41e. As a result, in the water supply unit 50 , supply of water from the external water supply pipe to the air cleaning unit 11 (mixing tank 92 ) is started via the water pipe 52 .
  • the solenoid valve 51 stops based on the signal from the output section 41e that receives the water level information (full water signal) from the water level sensor 90 of the space purification device 10. Thereby, the water supply unit 50 supplies water from the external water supply pipe to the air purification unit 11 (mixing tank 92) until the set amount of water is reached.
  • the air purification control unit 41 causes the water supply unit 50 to supply water to the air purification unit 11 .
  • the control in which the air purification control unit 41 supplies water by the water supply unit 50 based on the information (water shortage information) about the water level of the mixing tank 92 from the water level sensor 90 is referred to as "second control".
  • the input unit 41a receives user input information from the operation device 43, temperature and humidity information of the air in the indoor space 18 from the temperature and humidity sensor 44, and hypochlorous acid water (mixed water) in the mixing tank 92 from the water level sensor 90. ) and receive the water level information.
  • the input unit 41a outputs each received information to the processing unit 41d.
  • the operation device 43 inputs user input information (for example, air volume, target temperature, target humidity, presence or absence of addition of hypochlorous acid, target supply amount level of hypochlorous acid, etc.) regarding the space purification device 10. It is a terminal that communicates with the air purification control unit 41 wirelessly or by wire.
  • user input information for example, air volume, target temperature, target humidity, presence or absence of addition of hypochlorous acid, target supply amount level of hypochlorous acid, etc.
  • the temperature/humidity sensor 44 is a sensor that is provided in the indoor space 18 and senses the temperature/humidity of the air in the indoor space 18 .
  • the storage unit 41b stores user input information received by the input unit 41a and supply setting information in the operation of supplying hypochlorous acid to the air circulating in the device.
  • the storage unit 41b outputs the stored supply setting information to the processing unit 41d.
  • the supply setting information in the hypochlorous acid supply operation can also be said to be the humidification setting information in the humidification purification operation of the air purifier 11 .
  • the clocking unit 41c outputs time information regarding the current time to the processing unit 41d.
  • the processing unit 41d receives various information (user input information, temperature/humidity information, water level information) from the input unit 41a, time information from the clock unit 41c, and supply setting information from the storage unit 41b.
  • the processing unit 41d uses the received user input information, time information, and supply setting information to identify control information related to the humidification/purification operation.
  • the processing unit 41d detects the target humidity stored in the storage unit 41b and the temperature/humidity information of the air in the indoor space 18 from the temperature/humidity sensor 44 at regular time intervals based on the time information from the clock unit 41c. Identifies the required humidification demand for the indoor space 18 based on the humidity difference between. Then, the processing unit 41d identifies control information related to the humidifying and purifying operation based on the identified humidification request amount and the supply setting information stored in the storage unit 41b. Then, the processing unit 41d outputs the specified control information to the output unit 41e.
  • the processing unit 41d If the water level information from the water level sensor 90 includes water level information (water shortage signal) indicating a water shortage of the hypochlorous acid water (mixed water) in the mixing tank 92, the processing unit 41d outputs the output unit 41e outputs the signal of the water supply request
  • a predetermined time for example, 60 minutes
  • the water level at which the hypochlorous acid water (mixed water) in the mixing tank 92 indicates a water shortage is about 1% from the state where the hypochlorous acid water (mixed water) in the mixing tank 92 is full.
  • the water level is set when the amount of hypochlorous acid water is reduced to /3.
  • the output unit 41e outputs the received signals to the air purification unit 11, the hypochlorous acid water generation unit 30 (hypochlorous acid water supply unit 36), and the water supply unit 50, respectively.
  • the air purifying unit 11 receives a signal from the output unit 41e, and controls the driving operation based on the received signal.
  • the hypochlorous acid water generating unit 30 receives a signal (hypochlorous acid water supply request signal) from the output unit 41e, and based on the received signal, An operation (first control) relating to the process of supplying hypochlorous acid water to the air purifier 11 described above is executed.
  • the water supply unit 50 receives a signal (a water supply request signal) from the output unit 41e, and based on the received signal, performs an operation (second control) related to water supply processing to the air purification unit 11 described above. to run.
  • the air purification control unit 41 performs first control to supply hypochlorous acid water by the hypochlorous acid water generation unit 30 (hypochlorous acid water supply unit 36) at predetermined time intervals;
  • a second control for supplying water by the water supply unit 50 is executed based on information (shortage information) on the water level of the mixing tank 92 from the water level sensor 90 , and mixed water is stored in the mixing tank 92 .
  • the air purification control unit 41 controls the hypochlorous acid water supply cycle (every predetermined time) and the water The supply cycle (every water shortage detection) is made different, and the air circulating through the space purification device 10 (air purification unit 11) is subjected to humidification purification processing.
  • the cleaning process is a process for removing scale components such as calcium and magnesium contained in the water supplied from the water supply unit 50 that accumulate in the electrolytic bath 31 and become scale residue in the electrolytic bath 31 . More specifically, the cleaning process is performed when the supply of hypochlorous acid water from the electrolytic cell 31 to the air purification unit 11 (outside the hypochlorous acid water supply device) is completed in the humidifying and purifying operation.
  • the air purification control unit 41 causes the following processes to be executed as operations related to the cleaning process in the electrolytic cell 31.
  • the air purification control unit 41 causes the hypochlorous acid water supply unit 36 to supply hypochlorous acid water to the air purification unit 11 by the first control a predetermined number of times (for example, 5 times). After confirming that the
  • the air purification control unit 41 receives water level information (dry water signal) from the water level sensor 39 and time information (time information) from the clock unit 41c, and outputs them to the processing unit 41d. .
  • the processing unit 41d identifies control information based on the water level information from the water level sensor 39, the time information from the clock unit 41c, and the setting information from the storage unit 41b, and outputs it to the output unit 41e.
  • the setting information includes information on the amount of tap water supplied to the electrolytic cell 31, information on the opening/closing timing of the solenoid valve 33, and information on the on/off operation of the hypochlorous acid water transport pump 37.
  • the output unit 41e outputs a signal (control signal) to each device (solenoid valve 33, hypochlorous acid water conveying pump 37) based on the received control information.
  • the solenoid valve 33 maintains the closed state based on the signal from the output section 41e, and the hypochlorous acid water transfer pump 37 stops based on the signal from the output section 41e. maintain.
  • the solenoid valve 33 is opened based on the signal from the output section 41e.
  • supply of tap water from the water pipe 52 is started to the electrolytic cell 31 .
  • the electromagnetic valve 33 is closed based on the signal from the output section 41e that receives the water level information (full water) from the water level sensor 39.
  • FIG. As a result, the electrolytic cell 31 is filled with tap water, and scale residues accumulated in the electrolytic cell 31 are scattered in the water due to the water pressure when water is supplied by the water supply unit 50 .
  • the hypochlorous acid water conveying pump 37 operates after a predetermined time (for example, 1 minute) has elapsed based on the signal from the output unit 41e, and the hypochlorous acid water generating unit 30 sends air Drainage to the purification unit 11 (mixing tank 92) is started.
  • the predetermined time is set to the time until the scale residue scattered in the electrolytic cell by the water supplied from the water supply unit settles in the electrolytic cell.
  • the scale residue scattered in the water in the electrolytic bath 31 is discharged to the air purifier 11 (mixing bath 92) together with the water.
  • the hypochlorous acid water conveying pump 37 stops based on the signal from the output section 41e that receives the time information (required time for discharging the specified amount) from the clock section 41c.
  • the time required for draining the prescribed amount of the hypochlorous acid water conveying pump 37 is set sufficiently long so that the entire amount of water in the electrolytic cell 31 can be drained. All the water in the tank 31 is discharged.
  • the air purification control unit 41 controls the water supply unit 50 (solenoid valve 33) to operate the water supply unit 50 (solenoid valve 33) when the supply of hypochlorous acid water from the electrolytic cell 31 to the air purification unit 11 is completed as the cleaning process.
  • the air purification control unit 41 may repeat the above-described first cleaning process a plurality of times (for example, three times) in succession.
  • hypochlorous acid water supply apparatus (hypochlorous acid water generation unit 30) according to Embodiment 1
  • the following effects can be obtained.
  • hypochlorous acid water supply device hyperchlorous acid water generation unit 30
  • an electrolytic solution sodium chloride aqueous solution in which an electrolyte (sodium chloride) and water are mixed is electrolyzed to produce hypochlorous acid water.
  • an electrolyte supply unit salt water tank 34 and salt water conveying pump 35
  • a water supply unit 50 that supplies water to the electrolytic cell 31
  • a water supply unit (hypochlorous acid water supply unit 36) that supplies the hypochlorous acid water thus obtained to the outside (mixing tank 92 of air purification unit 11) is provided.
  • the supply of hypochlorous acid water from the electrolytic cell 31 to the outside is completed, the supply of water to the electrolytic cell 31 by the water supply unit 50 is started as a cleaning process (first cleaning process) of the electrolytic cell 31, Within a predetermined time (for example, 1 minute) after the water supply to the electrolytic cell 31 is completed, the electrolytic cell 31 is drained by the water supply unit.
  • the water supply from the water supply unit 50 scatters the scale residue, and the water is discharged within a predetermined time after the completion of the water supply, and the water contains the scale residue in a state in which the scale residue is scattered.
  • Water is drained from the electrolytic cell 31 . Therefore, accumulation of scale residues in the electrolytic bath 31 is suppressed.
  • the frequency of cleaning maintenance for removing scale accumulated in the electrolytic cell 31 can be reduced, and the maintainability of the hypochlorous acid water supply device (hypochlorous acid water generation unit 30) can be improved.
  • hypochlorous acid water supply device hypochlorous acid water generation unit 30
  • the water supplied from the water supply unit 50 causes the scale residue scattered in the electrolytic cell 31 to flow into the electrolytic cell 31. It is set within the time until it settles.
  • hypochlorous acid water supply device hyperchlorous acid water generation unit 30
  • the first cleaning process is repeated multiple times.
  • hypochlorous acid water supply device hypochlorous acid water generation unit 30
  • the water supply unit hypochlorous acid water supply unit 36
  • Drainage is carried out by circulating the space purification device 10 .
  • hypochlorous acid water supply device hyperochlorous acid water supply unit 36
  • space purification device 10 the cleaning process is performed without providing a separate drainage path. be able to.
  • hypochlorous acid water supply apparatus (hypochlorous acid water generation unit 30 ) according to the second embodiment, as the cleaning process controlled by the air purification control unit 41 , hypochlorous acid is supplied from the electrolytic cell 31 to the air purification unit 11 .
  • the first embodiment is characterized in that the hypochlorous acid water supply unit 36 drains the water from the electrolytic cell 31 while the water supply unit 50 supplies water to the electrolytic cell 31 when the supply of chloric acid water is completed.
  • Other configurations of the space purification system 100 including the hypochlorous acid water supply device (hypochlorous acid water generation unit 30) are the same as those of the space purification system 100 according to the first embodiment.
  • the cleaning process described above is hereinafter also referred to as "second cleaning process".
  • Embodiment 1 hypochlorous acid
  • FIGS. 1 and 2 which are different from Embodiment 1, hypochlorous acid
  • hypochlorous acid The operation of the acid water supply device (hypochlorous acid water generation unit 30) for cleaning the electrolytic cell 31 will be described.
  • the air purification control unit 41 causes the following processes to be executed as operations related to the cleaning process in the electrolytic cell 31 .
  • the air purification control unit 41 causes the hypochlorous acid water supply unit 36 to supply hypochlorous acid water to the air purification unit 11 by the first control as a trigger for the second cleaning process a predetermined number of times (for example, 5 times). After confirming that the
  • the air purification control unit 41 receives water level information (dry water signal) from the water level sensor 39 and time information (time information) from the clock unit 41c, and outputs the information to the processing unit 41d. .
  • the processing unit 41d identifies control information based on the water level information from the water level sensor 39, the time information from the clock unit 41c, and the setting information from the storage unit 41b, and outputs it to the output unit 41e.
  • the setting information includes information on the amount of tap water supplied to the electrolytic cell 31, information on the opening/closing timing of the solenoid valve 33, and information on the on/off operation of the hypochlorous acid water transport pump 37.
  • the output unit 41e outputs a signal (control signal) to each device (solenoid valve 33, hypochlorous acid water conveying pump 37) based on the received control information.
  • the solenoid valve 33 maintains the closed state based on the signal from the output section 41e, and the hypochlorous acid water transfer pump 37 stops based on the signal from the output section 41e. maintain.
  • the solenoid valve 33 is opened based on the signal from the output section 41e.
  • supply of tap water from the water pipe 52 is started to the electrolytic cell 31, and scale residues in the electrolytic cell 31 are scattered in the water by the force of the water.
  • the hypochlorous acid water conveying pump 37 operates based on the signal from the output section 41e, and in the hypochlorous acid water generation section 30, the electrolytic cell 31 to the air purification section 11 Drainage to (mixing tank 92) is also started at the same time.
  • the scale residue scattered in the water in the electrolytic bath 31 is discharged to the air purifier 11 (mixing bath 92) together with the water.
  • the electromagnetic valve 33 is closed based on the signal from the output section 41e that receives the time information (required time for supplying the specified amount) from the clock section 41c.
  • the hypochlorous acid water conveying pump 37 stops based on the signal from the output section 41e that receives the time information (required time for discharging the specified amount) from the clock section 41c.
  • the time required for draining the prescribed amount of the hypochlorous acid water conveying pump 37 is set sufficiently long so that the entire amount of water in the electrolytic cell 31 can be drained. All the water in the tank 31 is discharged.
  • the specified amount of the solenoid valve 33 is supplied. It is necessary to set the time required for this process so that the amount of water held in the electrolytic cell 31 does not exceed the capacity of the electrolytic cell 31 .
  • the solenoid valve 33 is closed when the water level sensor 39 detects the full water level.
  • the water supply flow rate from the water supply unit 50 is smaller than the drainage flow rate from the hypochlorous acid water supply unit 36, the water supplied from the water supply unit 50 is immediately drained.
  • the amount of water to be held does not exceed the capacity of the electrolytic cell 31, and the required time for supplying the specified amount of the solenoid valve 33 can be set without an upper limit.
  • the required time for supplying the specified amount of the solenoid valve 33 is set so as to obtain a sufficient scale washing effect within the range of the above limit.
  • the required time is set to 3 minutes, for example.
  • the air purification control unit 41 controls the water supply unit 50 (solenoid valve 33) to operate the water supply unit 50 (solenoid valve 33) when the supply of hypochlorous acid water from the electrolytic cell 31 to the air purification unit 11 is completed as the cleaning process. While water is being supplied to the electrolytic cell 31, the hypochlorous acid water supply unit 36 (hypochlorous acid water conveying pump 37) drains the electrolytic cell 31 (second cleaning process). Note that the air purification control unit 41 may repeat the above-described second cleaning process a plurality of times (for example, three times).
  • hypochlorous acid water supply device (hypochlorous acid water generation unit 30) according to Embodiment 2
  • the following effects can be obtained.
  • hypochlorous acid water supply device (hypochlorous acid water generation unit 30)
  • an electrolytic solution sodium chloride aqueous solution in which an electrolyte (sodium chloride) and water are mixed is electrolyzed to produce hypochlorous acid water.
  • an electrolyte supply unit salt water tank 34 and salt water conveying pump 35
  • a water supply unit 50 that supplies water to the electrolytic cell 31
  • a water supply unit (hypochlorous acid water supply unit 36) that supplies the hypochlorous acid water thus obtained to the outside (mixing tank 92 of air purification unit 11).
  • hypochlorous acid water supply device hyperchlorous acid water generation unit 30
  • the second cleaning process is performed for a predetermined time (for example, 3 minutes).
  • hypochlorous acid water supply device hyperchlorous acid water generation unit 30
  • the second cleaning process is repeated multiple times.
  • hypochlorous acid water supply device hypochlorous acid water generation unit 30
  • the water supply unit hypochlorous acid water supply unit 36
  • Drainage is carried out by circulating the space purification device 10 .
  • hypochlorous acid water supply device hyperochlorous acid water supply unit 36
  • space purification device 10 the cleaning process is performed without providing a separate drainage path. be able to.
  • the air purification control unit 41 adjusts the flow rate of water supply from the water supply unit 50 (solenoid valve 33) to the hypochlorous acid water supply unit 36
  • the flow rate is controlled to be greater than the drainage flow rate by the hypochlorous acid water conveying pump 37, and the electromagnetic valve 33 is closed based on the signal from the output section 41e that receives the water level information (full water) from the water level sensor 39. You may do so.
  • hypochlorous acid water supply unit 36 which is performed while water is being supplied to the electrolytic cell 31 by the water supply unit 50, and the second cleaning process is performed once.
  • the descaling effect per hit can be enhanced.
  • the air purification control unit 41 receives the water level information (full water) from the water level sensor 39 in the first cleaning process.
  • the electromagnetic valve 33 is controlled to be closed based on the received signal from the output portion 41e, the present invention is not limited to this.
  • the air purification control unit 41 may control the solenoid valve 33 to close before the electrolytic cell 31 becomes full in the first cleaning process.
  • the air purification control unit 41 closes the electromagnetic valve 33 after a certain period of time (for example, 30 seconds) has passed since the electromagnetic valve 33 was opened. By doing so, since the first cleaning process is performed without filling the electrolytic cell 31 with water, the scale residue can be removed by supplying a smaller amount of water to the electrolytic cell 31 .
  • the water supply unit 50 in each cleaning process (first cleaning process or second cleaning process), the water supply unit 50 Although tap water was supplied to the electrolytic cell 31 by , it is not limited to this.
  • a separate system of supply piping supply piping including an electromagnetic valve
  • a liquid containing an acidic component such as hydrochloric acid or citric acid may be supplied through the supply piping.
  • hypochlorous acid water in each cleaning process Drainage of the electrolytic cell 31 by the supply unit 36 is performed by circulating the space cleaning device 10, but it is not limited to this.
  • a drain pipe a drain pipe including an electromagnetic valve
  • water may be drained from the inside of the electrolytic cell 31 to the outside of the apparatus through the drain pipe.
  • hypochlorous acid water supply device hyperchlorous acid water supply unit 36
  • the first control As a trigger for each cleaning process (first cleaning process or second cleaning process), the first control
  • the supply of hypochlorous acid water to the air purifier 11 by is performed a predetermined number of times (for example, 5 times), it is not limited to this.
  • a separate system of drainage piping it may be executed each time hypochlorous acid water is supplied to the air purifier 11 by the first control.
  • the cleaning process is performed before the scale components contained in the hypochlorous acid water are dried in the electrolytic cell 31, so that the accumulation of scale residue generated in the electrolytic cell 31 can be reduced. can.
  • a hypochlorous acid water supply device improves the maintainability of a device that generates hypochlorous acid by electrolysis and feeds water, and is a device that disinfects or deodorizes the air in a target space. Or it is useful as a system using this.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
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  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
PCT/JP2022/034360 2021-10-28 2022-09-14 次亜塩素酸水供給装置 WO2023074166A1 (ja)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186098U (ja) * 1984-05-21 1985-12-10 株式会社明電舎 電気水処理装置
JPH06339691A (ja) * 1993-05-31 1994-12-13 Corona Kogyo Kk 滅菌水製造装置
JPH10156362A (ja) * 1996-11-28 1998-06-16 Hoshizaki Electric Co Ltd 電解水生成装置
JP2002018442A (ja) * 2000-07-06 2002-01-22 Sanyo Electric Co Ltd 水処理装置
JP2012066179A (ja) * 2010-09-22 2012-04-05 Toto Ltd 殺菌装置および衛生洗浄装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186098U (ja) * 1984-05-21 1985-12-10 株式会社明電舎 電気水処理装置
JPH06339691A (ja) * 1993-05-31 1994-12-13 Corona Kogyo Kk 滅菌水製造装置
JPH10156362A (ja) * 1996-11-28 1998-06-16 Hoshizaki Electric Co Ltd 電解水生成装置
JP2002018442A (ja) * 2000-07-06 2002-01-22 Sanyo Electric Co Ltd 水処理装置
JP2012066179A (ja) * 2010-09-22 2012-04-05 Toto Ltd 殺菌装置および衛生洗浄装置

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