WO2025123795A1 - 消毒系统及其运行方法、消毒设备 - Google Patents

消毒系统及其运行方法、消毒设备 Download PDF

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Publication number
WO2025123795A1
WO2025123795A1 PCT/CN2024/115841 CN2024115841W WO2025123795A1 WO 2025123795 A1 WO2025123795 A1 WO 2025123795A1 CN 2024115841 W CN2024115841 W CN 2024115841W WO 2025123795 A1 WO2025123795 A1 WO 2025123795A1
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WIPO (PCT)
Prior art keywords
disinfection system
discharge electrode
disinfection
humidity
medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/115841
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English (en)
French (fr)
Inventor
罗超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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Filing date
Publication date
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Publication of WO2025123795A1 publication Critical patent/WO2025123795A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • H05H1/2418—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the electrodes being embedded in the dielectric
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/19—Air humidity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2601/00—Washing methods characterised by the use of a particular treatment

Definitions

  • the present application relates to the field of disinfection technology, and in particular to a disinfection system and an operation method thereof, and a disinfection device.
  • dishwashers as kitchen appliances that can automatically clean kitchen utensils, are used by more and more families, bringing great convenience to people's lives.
  • dishwasher disinfection technology has gradually shifted from high temperature and ultraviolet disinfection to plasma disinfection.
  • a disinfection system comprises: a water tank, a dielectric tube, a discharge electrode, a humidity detector and a control device, wherein the dielectric tube is arranged in the water tank, an air outlet is provided at the portion of the dielectric tube in contact with water, and an air inlet of the dielectric tube is used to input the gas to be discharged; the discharge electrode is located inside the dielectric tube; the humidity detector is arranged at the air inlet of the dielectric tube, and is used to detect the humidity value of the gas to be discharged; the control device connects the discharge electrode and the humidity detector, and controls the discharge electrode to operate in a discharge mode when the humidity value is less than or equal to a preset humidity threshold, and controls the discharge electrode to operate in a heating mode when the humidity value is greater than the preset humidity threshold.
  • the top of the water tank is closed and has an air outlet
  • the disinfection system further includes a gas circulation device, and the air outlet of the water tank and the air inlet of the medium pipe are respectively connected to the gas circulation device.
  • the gas circulation device includes an air pump and an air flow equalizer, the air pump is connected to the air flow equalizer, and the air pump is connected to the air outlet of the water tank.
  • the air flow equalizer includes a main air flow path and a plurality of air flow branches, wherein the main air flow path is connected to The air pump is connected, and each of the plurality of air flow branches is connected to the main air flow path respectively, and each air flow branch corresponds to an air inlet connected to a medium pipe; wherein the pipe diameters of the plurality of air flow branches are set to be different.
  • the diameter of each of the air flow branches increases as the distance from the air pump increases.
  • an insulating bracket is further included, and the number of the medium tubes is multiple, and each of the medium tubes is fixed to the water tank through the insulating bracket.
  • the control device includes a high-voltage power supply and a controller.
  • the discharge electrodes are arranged in one-to-one correspondence with the dielectric tubes, each of the discharge electrodes is connected to the high-voltage power supply, and the high-voltage power supply and the humidity detector are connected to the controller respectively.
  • the insulating support is an insulating plate with a plurality of through holes, and each dielectric tube is fixedly disposed through a corresponding through hole.
  • each medium tube is a quartz tube, a glass tube or a ceramic tube; a portion of the bottom of each medium tube in contact with water has a plurality of air outlet holes.
  • the discharge electrode is coaxially arranged with the dielectric tube.
  • a method for operating a disinfection system comprising: obtaining in real time the humidity value of the gas to be discharged input into a medium pipe of the disinfection system; wherein the medium pipe is arranged in a water tank of the disinfection system, a portion of the medium pipe in contact with water is provided with an air outlet, an air inlet of the medium pipe is used to input the gas to be discharged, and a discharge electrode of the disinfection system is arranged inside the medium pipe; corresponding to the case where the humidity value is less than or equal to a preset humidity threshold, controlling the discharge electrode to operate in a discharge mode. corresponding to the case where the humidity value is greater than the preset humidity threshold, controlling the discharge electrode to operate in a heating mode.
  • the step of obtaining in real time the humidity value of the gas to be discharged in the medium pipe input into the disinfection system also includes: verifying whether it is necessary to start the disinfection work; corresponding to the situation where the disinfection work needs to be started, controlling the air pump of the gas circulation device in the disinfection system to start, and executing the step of obtaining in real time the humidity value of the gas to be discharged in the medium pipe input into the disinfection system.
  • controlling the discharge electrode to operate in a discharge mode includes: controlling the high-voltage power supply of the disinfection system to output a first voltage signal to the discharge electrode; controlling the discharge electrode to operate in a heating mode includes: controlling the high-voltage power supply of the disinfection system to output a second voltage signal to the discharge electrode; wherein the voltage value of the first voltage signal is greater than the voltage value of the second voltage signal.
  • a disinfection device comprises any one of the above-mentioned disinfection systems.
  • the disinfection equipment is a dishwasher.
  • the above-mentioned disinfection system and its operation method, disinfection equipment include a water tank, a dielectric tube, a discharge electrode, a humidity detector and a control device, the dielectric tube is arranged in the water tank, and the part in contact with water is provided with an air outlet; the discharge electrode is located inside the dielectric tube, and is coaxially arranged with the dielectric tube, and a humidity detector is also arranged at the air inlet of the dielectric tube, and the humidity detector and the discharge electrode are both connected to the control device.
  • the gas to be discharged is input from the air inlet of the dielectric tube, plasma is formed through the annular air gap between the discharge electrode and the dielectric tube, and enters the water in the water tank through the air outlet of the dielectric tube to obtain discharge plasma in the water, thereby realizing the disinfection operation.
  • the humidity of the gas to be discharged input from the air inlet of the dielectric tube can be monitored, corresponding to the case where the humidity value is less than or equal to the preset humidity threshold, the discharge electrode operates in the discharge mode, and corresponding to the case where the humidity value is greater than the preset humidity threshold, the discharge electrode operates in the heating mode to remove moisture in the gas to be discharged.
  • the water marks on the surface of the discharge electrode can be greatly reduced, the phenomenon of arcing, ignition and ablation of the discharge electrode caused by the water marks on the surface of the discharge electrode can be alleviated, and the disinfection reliability of the disinfection system can be improved.
  • FIG1 is a schematic diagram of the structure of a disinfection system in one embodiment of the present application.
  • FIG2 is a schematic diagram of the structure of a disinfection system in another embodiment of the present application.
  • FIG3 is a schematic diagram of the structure of a disinfection system in another embodiment of the present application.
  • FIG4 is a schematic diagram of the structure of a disinfection system in yet another embodiment of the present application.
  • FIG5 is a schematic diagram of a flow chart of an operation method of a disinfection system in one embodiment of the present application
  • FIG. 6 is a schematic flow chart of an operation method of a disinfection system in another embodiment of the present application.
  • 21-gas circulation device 301-air pump, 302-air flow equalizer, 303-insulating bracket, 3021-air flow main path, 3022-air flow branch path;
  • the disinfection system provided in the embodiment of the present application is applied in disinfection equipment, specifically, in disinfection equipment of the type that uses water discharge plasma for disinfection, such as dishwashers.
  • water discharge plasma refers to the plasma generated by discharge in an aqueous solution environment.
  • the water discharge plasma is often accompanied by ultraviolet radiation, shock waves, local high temperature, strong electric field and the generation of various active chemical free radicals during the generation process. These physical and chemical effects make liquid phase plasma have broad application prospects in the field of water sterilization and disinfection.
  • the present application provides a disinfection system, including: a water tank 11, a medium tube 12, a discharge electrode 13, a humidity detector 14 and a control device 15.
  • the medium tube 12 is arranged in the water tank 11, and a gas outlet 121 is provided at the part of the medium tube 12 in contact with water, and an air inlet 122 of the medium tube 12 is used to input the gas to be discharged;
  • the discharge electrode 13 is located inside the medium tube 12 and is coaxially arranged with the medium tube 12;
  • the humidity detector 14 is arranged at the air inlet 122 of the medium tube 12, and is used to detect the humidity value of the gas to be discharged;
  • the control device 15 is connected to the discharge electrode 13 and the humidity detector 14, and is used to control the discharge electrode 13 to operate in a discharge mode when the humidity value is less than or equal to a preset humidity threshold, and to control the discharge electrode 13 to operate in a heating mode when the humidity value is greater than the preset humidity threshold.
  • the water tank 11 is a box for storing water. It is understandable that in actual scenarios, the water stored in the water tank 11 needs to be sprayed for cleaning and/or disinfection operations, so the water tank 11 should also be provided with a water inlet and a water outlet, which can be opened and closed according to actual needs, thereby realizing the regulation of the water storage amount in the water tank 11.
  • the setting positions of the water inlet and the water outlet are not limited, as long as they do not affect the disinfection operation.
  • the dielectric tube 12 is a tube for placing the discharge electrode 13, and when the discharge electrode 13 is in discharge operation, a plasma is formed through the annular air gap between the dielectric tube 12 and the discharge electrode 13.
  • the specific material of the dielectric tube 12 is not unique. In a more detailed embodiment, it can be a quartz tube, a glass tube or a ceramic tube. In other embodiments, other types of inorganic materials can also be used, which are not specifically limited.
  • the number of the air outlet holes 121 opened in the bottom of the dielectric tube 12 that contacts water is not unique, and can be set according to actual needs.
  • the discharge electrode 13 is an electrode capable of generating plasma on or near its surface under the action of an electric field or current.
  • the gas to be discharged is the gas waiting to be discharged through the discharge electrode 13 to generate plasma.
  • the control device 15 is a device for applying voltage to the discharge electrode 13 to control the operation of the discharge electrode 13.
  • the specific type of the humidity detector 14 is not unique. In more detail, in one embodiment, a humidity sensor may be used.
  • the humidity detector 14 is connected to the control device 15 by wired or wireless communication.
  • the humidity detector 14 detects the humidity of the gas to be discharged in real time, obtains the humidity value of the gas to be discharged, and sends it to the control device 15.
  • the setting position and the setting number of the humidity detector 14 are not unique.
  • the humidity detector 14 can be set at the air inlet 122 of only one of the medium tubes 12 to save system cost.
  • the humidity detector 14 can also be set at the air inlet 122 of at least two medium tubes 12, and the detection results of multiple humidity detectors 14 are averaged to obtain the humidity value of the to-be-discharged gas, which is used for operation control, thereby reducing the measurement error of the humidity detector 14 and improving the accuracy of the humidity value.
  • the preset humidity threshold refers to the minimum humidity value reached by the gas to be discharged when the phenomenon of arcing, ignition and electrode ablation occurs. It can also be understood as the maximum humidity value that the gas to be discharged can reach when the phenomenon of arcing, ignition and electrode ablation does not occur. In other words, the preset humidity threshold is the humidity critical value of whether the phenomenon of arcing, ignition and electrode ablation will occur. The specific size of the preset humidity threshold is not unique.
  • the preset humidity threshold may also be different depending on the device structure or parameters of the disinfection system. For example, in a more detailed embodiment, the preset humidity threshold may be set to 50%.
  • the preset humidity threshold there is not only one way to obtain the preset humidity threshold. In one embodiment, it can be obtained by testing an experimental disinfection system that is consistent with the current disinfection system in an experimental scenario, and written into the current disinfection system, which can be directly called later.
  • the control device 15 After receiving the humidity value, the control device 15 will compare and analyze it with the preset humidity threshold. When the humidity value is less than or equal to the preset humidity threshold, it indicates that arcing and ignition will not occur due to the humidity of the gas to be discharged. At this time, the discharge electrode 13 is directly controlled to operate in the discharge mode to discharge and generate plasma. When the humidity value is greater than the preset humidity threshold, it indicates that if the discharge mode is operated at this time, the input gas to be discharged will cause arcing and ignition. Therefore, the control device 15 controls the discharge electrode 13 to operate in the heating mode at this time, and reduces the moisture in the gas to be discharged by heating, that is, reduces the humidity value. Finally, the discharge electrode 13 discharges with the discharge gas to be tested whose humidity value is less than or equal to the preset humidity threshold, reducing the possibility of arcing and ignition.
  • the above disinfection system includes a water tank 11, a medium pipe 12, a discharge electrode 13, a humidity detector 14 and a control device 15.
  • the medium pipe 12 is arranged in the water tank 11, and a gas outlet 121 is provided in the part in contact with water; the discharge electrode 13 is located inside the medium pipe 12 and is coaxially arranged with the medium pipe 12.
  • a humidity detector 14 is arranged at the air inlet 122 of the medium pipe 12. Both the humidity detector 14 and the discharge electrode 13 are connected to the control device 15. In this way, during the operation of the disinfection system, the gas to be discharged is input from the air inlet 122 of the medium pipe 12, and a plasma is formed through the annular air gap between the discharge electrode 13 and the medium pipe 12.
  • the sub-body is formed in the water and enters the water in the water tank 11 through the air outlet 121 of the medium tube 12 to obtain the discharge plasma in the water, thereby realizing the disinfection operation.
  • the humidity of the gas to be discharged input from the air inlet 122 of the medium tube 12 can be monitored.
  • the discharge electrode 13 operates in the discharge mode.
  • the discharge electrode 13 operates in the heating mode to remove the moisture in the gas to be discharged.
  • the water vapor on the surface of the discharge electrode 13 can be greatly reduced, the phenomenon of arcing, ignition and ablation of the discharge electrode 13 caused by the surface water vapor on the discharge electrode 13 can be alleviated, and the disinfection reliability of the disinfection system can be improved.
  • the top of the water tank 11 is closed and has an air outlet 111
  • the disinfection system further includes a gas circulation device 21
  • the air outlet 111 of the water tank 11 and the air inlet 122 of the medium pipe 12 are respectively connected to the gas circulation device 21 .
  • the disinfection system is specifically a circulating disinfection system
  • the top of the water tank 11 is closed and has an air outlet 111
  • the gas circulation device 21 connects the air outlet 111 of the water tank 11 and the air inlet 122 of the medium tube 12.
  • the gas to be discharged enters the medium tube 12 through the air inlet 122 of the medium tube 12, and after being ionized by the discharge electrode 13, forms a gas with plasma, and is discharged through the air outlet 121 of the medium tube 12 and enters the water in the water tank 11.
  • the gas with plasma partially dissolves in the water to form a plasma water body with disinfection function, and partially discharges through the air outlet 111 of the water tank 11, enters the gas circulation device 21 for transmission, and enters the medium tube 12 again through the air inlet 122 of the medium tube 12, is ionized again by the discharge electrode 13 and enters the water, thus realizing cyclic ionization.
  • the gas circulation device 21 includes an air pump 301 and an air flow equalizer 302.
  • the air pump 301 is connected to the air flow equalizer 302.
  • the air pump 301 is connected to the air outlet 111 of the water tank 11, and the air inlet 122 of each medium pipe 12 is respectively connected to the air flow equalizer 302.
  • the air pump 301 is a device for adding air to a closed space, and its specific type is not unique, and can be various types of electric air pumps, which are not specifically limited.
  • the airflow equalizer 302 is a device for evenly distributing the airflow so as to output it evenly from each output end.
  • the number of discharge electrodes 13 is not unique, and each discharge electrode 13 is coaxially arranged in a dielectric tube 12 to form a single reactor.
  • the structures of each reactor are consistent and can be arranged in an array or other arrangement methods and arranged in a water tank 11. To ensure that each reactor can ionize the gas to be discharged by discharge during operation to generate plasma, and also to ensure the uniformity of plasma generation.
  • the gas circulation device 21 includes an air pump 301 and an airflow equalizer 302, and the air pump 301 is connected to the input end of the airflow equalizer 302, and each output end of the airflow equalizer 302 is respectively connected to an air inlet 122 of a dielectric tube 12.
  • the structure of the airflow equalizer 302 is not unique. It can be achieved by setting a valve device such as a solenoid valve at the output end of the airflow equalizer 302 so that the gas flow output from each output end is consistent. In other embodiments, the airflow at each output end can also be consistent by setting each output end differently.
  • the airflow equalizer 302 includes a main airflow path 3021 and an airflow branch 3022, the main airflow path 3021 is connected to the air pump 301, and each airflow branch 3022 is respectively connected to the main airflow path 3021, and each airflow branch 3022 corresponds to the air inlet 122 connected to a medium pipe 12; wherein the pipe diameters of each airflow branch 3022 are set to be different.
  • the airflow equalizer 302 includes a main airflow path 3021, and airflow branches 3022 respectively connected to the main airflow path 3021.
  • the flow rate of the gas is mainly related to the flow velocity and the cross-sectional area of the pipeline.
  • the cross-sectional area of the pipeline When the flow velocity remains unchanged, the larger the cross-sectional area of the pipeline, the larger the gas flow rate; when the cross-sectional area of the pipeline remains unchanged, the larger the flow velocity, the larger the gas flow rate.
  • the gas circulation device 21 due to the different positions where each airflow branch 3022 connects to the main airflow path 3021, there will be certain differences in the airflow velocity between each airflow branch 3022.
  • the airflow equalizer 302 is constructed by using the main airflow path 3021 and the airflow branches 3022 with different pipe diameters, which can achieve uniform airflow and greatly reduce hardware costs.
  • each air flow branch 3022 increases as the distance from the air pump 301 increases.
  • the to-be-discharged gas output by the air pump 301 enters each air flow branch 3022 in turn during the transmission process of the air flow main path 3021, and the gas flow rate will gradually decrease as the distance from the air pump 301 becomes farther and farther. Therefore, in order to ensure the uniformity of the air flow of each air flow branch 3022, the pipe diameter of the air flow branch 3022 that is farther from the air pump 301 can be set to be larger, and the pipe diameter of the air flow branch 3022 that is closer to the air pump 301 can be set to be smaller, thereby making the gas flow of each air flow branch 3022 consistent, so that the air flow equalization effect of the air flow equalizer 302 can be effectively improved.
  • the disinfection system further includes an insulating bracket 303 , and each medium pipe 12 is fixed to the water tank 11 through the insulating bracket 303 .
  • the solution of this embodiment may further provide an additional insulating bracket 303 to fix each medium tube 12 and improve the operational stability of the disinfection system.
  • the specific type of the insulating bracket 303 is not unique, as long as it is a bracket of this type that can fix multiple medium tubes 12 at the same time.
  • the insulating bracket 303 is an insulating plate with multiple through holes, and the diameter of each through hole matches the diameter of the medium tube 12, so that each medium tube 12 can be fixed through the through hole.
  • the medium tubes 12 need to be arranged in an array, and accordingly, each through hole opened in the insulating plate Array arrangement is required.
  • the setting position of the insulating bracket 303 in the water tank 11 is not unique.
  • the insulating bracket 303 in order to avoid the insulating bracket 303 affecting the plasma distribution in the water body, can be set at the top of the water tank 11, specifically, it can be inside or outside the water tank 11, that is, it can be the top outer surface or the top inner surface of the water tank 11.
  • the control device 15 includes a high voltage power supply 401 and a controller 402 .
  • Each discharge electrode 13 is connected to the high voltage power supply 401 .
  • the high voltage power supply 401 and the humidity detector 14 are connected to the controller 402 .
  • the specific type of the control device 15 is not unique. It needs to provide a working voltage for the discharge electrode 13 and also needs to have the function of analyzing and processing according to the humidity value. Therefore, in the solution of this embodiment, the control device 15 specifically includes a high-voltage power supply 401 and a controller 402 (which can be a microcontroller or a single-chip computer, etc.). In the actual operation process, the controller 402 obtains the humidity value and compares and analyzes it with the preset humidity threshold.
  • the controller 402 controls the high-voltage power supply 401 to output a higher voltage for the discharge electrode 13 to achieve high-voltage discharge; in the case where the humidity value is greater than the preset humidity threshold, the controller 402 controls the high-voltage power supply 401 to output a lower voltage, so that the discharge electrode 13 operates in a heating mode to achieve the dehumidification function.
  • each discharge electrode 13 can be connected to the positive end of the high-voltage power supply 401, while the negative end of each discharge electrode 13 and the negative end of the high-voltage power supply 401 are grounded.
  • Step 502 obtaining in real time the humidity value of the to-be-discharged gas in the medium pipe 12 input into the disinfection system.
  • Step 506 corresponding to the situation where the humidity value is greater than the preset humidity threshold, controlling the discharge electrode 13 to operate in a heating mode.
  • the medium tube 12 is arranged in the water tank 11 of the disinfection system, and the part of the medium tube 12 in contact with water is provided with an air outlet 121.
  • the air inlet 122 of the medium tube 12 is used to input the gas to be discharged, and the discharge electrode 13 of the disinfection system is arranged inside the medium tube 12.
  • the dielectric tube 12 is a tube for placing the discharge electrode 13, and when the discharge electrode 13 is in discharge operation, a plasma is formed through the annular air gap between the dielectric tube 12 and the discharge electrode 13.
  • the specific material of the dielectric tube 12 is not unique. In a more detailed embodiment, it can be a quartz tube, a glass tube or a ceramic tube. In other embodiments, other types of inorganic materials can also be used, which are not specifically limited.
  • the number of the air outlet holes 121 opened in the bottom of the dielectric tube 12 that contacts water is not unique, and can be set according to actual needs.
  • the discharge electrode 13 is an electrode capable of generating plasma on or near its surface under the action of an electric field or current.
  • the gas to be discharged is a gas waiting to be discharged through the discharge electrode 13 to generate plasma.
  • the control device 15 is a device for applying voltage to the discharge electrode 13 to control the operation of the discharge electrode 13.
  • the specific type of the humidity detector 14 is not limited. In more detail, in one embodiment, a humidity sensor can be used.
  • the humidity detector 14 is connected to the control device 15 by wired or wireless communication.
  • the humidity detector 14 detects the humidity of the gas to be discharged in real time, obtains the humidity value of the gas to be discharged, and sends it to the control device 15.
  • the preset humidity threshold refers to the minimum humidity value reached by the gas to be discharged when the phenomenon of arcing, ignition and electrode ablation occurs. It can also be understood as the maximum humidity value that the gas to be discharged can reach when the phenomenon of arcing, ignition and electrode ablation does not occur. In other words, the preset humidity threshold is the humidity critical value of whether the phenomenon of arcing, ignition and electrode ablation will occur. The specific size of the preset humidity threshold is not unique.
  • the preset humidity threshold may also be different depending on the device structure or parameters of the disinfection system. For example, in a more detailed embodiment, the preset humidity threshold may be set to 50%.
  • the preset humidity threshold there is not only one way to obtain the preset humidity threshold. In one embodiment, it can be obtained by testing an experimental disinfection system that is consistent with the current disinfection system in an experimental scenario, and written into the current disinfection system, which can be directly called later.
  • the control device 15 After receiving the humidity value, the control device 15 will compare and analyze it with the preset humidity threshold. When the humidity value is less than or equal to the preset humidity threshold, it indicates that the humidity of the gas to be discharged will not cause arcing and ignition. At this time, the discharge electrode 13 can be directly controlled to operate in the discharge mode to discharge and generate plasma. When the humidity value is greater than the preset humidity threshold, it indicates that if the discharge mode is used at this time, the input gas to be discharged will cause arcing and ignition. Therefore, The control device 15 controls the discharge electrode 13 to operate in a heating mode, and reduces the moisture in the gas to be discharged by heating, that is, reduces the humidity value. Finally, the discharge electrode 13 discharges the discharge gas to be tested with a humidity value less than or equal to a preset humidity threshold, thereby reducing the possibility of arcing and ignition.
  • the operation method of the above-mentioned disinfection system is that during the operation of the disinfection system, the gas to be discharged is input from the air inlet 122 of the medium tube 12, plasma is formed through the annular air gap between the discharge electrode 13 and the medium tube 12, and enters the water in the water tank 11 through the air outlet 121 of the medium tube 12 to obtain the discharge plasma in the water, thereby realizing the disinfection operation.
  • the humidity of the gas to be discharged input from the air inlet 122 of the medium tube 12 can be monitored. When the humidity value is less than or equal to the preset humidity threshold, the discharge electrode 13 operates in the discharge mode.
  • the discharge electrode 13 When the humidity value is greater than the preset humidity threshold, the discharge electrode 13 operates in the heating mode to remove the moisture in the gas to be discharged. In this way, the water vapor on the surface of the discharge electrode 13 can be greatly reduced, the phenomenon of arcing, ignition and ablation of the discharge electrode 13 caused by the surface water vapor of the discharge electrode 13 can be alleviated, and the disinfection reliability of the disinfection system can be improved.
  • the method further includes steps 602 and 604 .
  • Step 602 verify whether disinfection needs to be started.
  • Step 604 corresponding to the situation where the disinfection work needs to be started, the air pump 301 of the gas circulation device in the disinfection system is controlled to start, and step 502 is executed to obtain the humidity value of the to-be-discharged gas in the medium pipe input into the disinfection system in real time.
  • the water stored in the water tank 11 can be used not only to clean the devices to be cleaned (such as tableware), but also to disinfect the devices to be disinfected (which can also be tableware).
  • the devices to be cleaned such as tableware
  • the devices to be disinfected which can also be tableware.
  • the disinfection system is a circulating disinfection system.
  • the control device 15 first controls the air pump 301 to start running to deliver the gas to be discharged to the medium pipe 12. After that, the control device 15 determines the working state of the discharge electrode 13 in combination with the humidity value obtained in real time, that is, dynamically adjusts the operating state of the discharge electrode 13 in combination with the humidity value obtained in real time.
  • controlling the discharge electrode 13 to operate in the discharge mode includes: controlling the high-voltage power supply 401 of the disinfection system to output a first voltage signal to the discharge electrode 13; controlling the discharge electrode 13 to operate in the heating mode includes: controlling the high-voltage power supply 401 of the disinfection system to output a second voltage signal to the discharge electrode 13.
  • the voltage value of the first voltage signal is greater than the voltage value of the second voltage signal.
  • the control device 15 specifically includes a high voltage power supply 401 and a controller 402.
  • the operation of the disinfection system The methods are all implemented by the controller 402.
  • the discharge electrode 13 When the discharge electrode 13 operates in the discharge mode and the heating mode, it is specifically implemented by controlling the high-voltage power supply 401 to output voltage signals of different sizes to the discharge electrode 13.
  • the voltage of plasma discharge is usually high, and needs to reach between hundreds of volts and thousands of volts. This is because plasma is a high-energy substance that needs to be formed and maintained by a strong electric field.
  • the required ID pressure is generally low, usually between tens and hundreds of volts.
  • the heating process is mainly achieved through the thermal effect of current, and the efficiency of the thermal effect is proportional to the square of the voltage. Therefore, a lower voltage can more effectively achieve the heating process.
  • the discharge electrode 13 is controlled to operate in the discharge mode or the heating mode by changing the voltage input to the discharge electrode 13.
  • the implementation method is simple and has a high regulation efficiency.
  • the present application also provides a disinfection device, including the above-mentioned disinfection system, and the control device 15 is used to execute the steps of the above-mentioned operating method.
  • the disinfection system includes a water tank 11, a medium tube 12, a discharge electrode 13, a humidity detector 14 and a control device 15.
  • the medium tube 12 is arranged in the water tank 11, and the part in contact with water is provided with an air outlet 121; the discharge electrode 13 is located inside the medium tube 12 and is coaxially arranged with the medium tube 12.
  • a humidity detector 14 is also arranged at the air inlet 122 of the medium tube 12. The humidity detector 14 and the discharge electrode 13 are both connected to the control device 15.
  • the gas to be discharged is input from the air inlet 122 of the medium tube 12, plasma is formed through the annular air gap between the discharge electrode 13 and the medium tube 12, and enters the water in the water tank 11 through the air outlet 121 of the medium tube 12, and a discharge plasma in the water is obtained, thereby realizing the disinfection operation.
  • the humidity of the gas to be discharged inputted from the air inlet 122 of the medium tube 12 can be monitored. When the humidity value is less than or equal to the preset humidity threshold, the discharge electrode 13 operates in the discharge mode.
  • the discharge electrode 13 When the humidity value is greater than the preset humidity threshold, the discharge electrode 13 operates in the heating mode to remove the moisture in the gas to be discharged. In this way, the water vapor on the surface of the discharge electrode 13 can be greatly reduced, and the phenomenon of arcing, ignition and ablation of the discharge electrode 13 caused by the surface water vapor of the discharge electrode 13 can be alleviated, thereby improving the reliability of disinfection.
  • the specific type of disinfection device is not unique.
  • the disinfection device is a dishwasher.
  • a water inlet and a water outlet are provided at the bottom of the water tank 11.
  • the air pump 301, the discharge electrode 13, and the humidity detector 14 do not need to be turned on and operated.
  • the air pump 301, the discharge electrode 13, and the humidity detector 14 need to be turned on and operated.
  • the discharge electrode 13 ionizes the discharge gas to obtain activated water rich in plasma, which is then sprayed onto the tableware or kitchen utensils through the water outlet of the water tank 11. Implement disinfection operation.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Water Supply & Treatment (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

一种消毒系统及其运行方法、消毒设备。该消毒系统包括水箱(11)、介质管(12)、放电电极(13)、湿度检测器(14)和控制装置(15)。介质管(12)设置于水箱(11)中，且其与水接触的部分开设有出气孔(121)。放电电极(13)位于介质管(12)的内部。介质管(12)的进气口(122)设置有湿度检测器(14)，用于检测待放电气体的湿度值。控制装置(15)连接放电电极(13)和湿度检测器(14)，用于对应于湿度值小于或等于预设湿度阈值的情况，控制放电电极(13)以放电模式运行，对应于湿度值大于预设湿度阈值的情况，控制放电电极(13)以加热模式运行。

Description

消毒系统及其运行方法、消毒设备
相关申请
本申请要求2023年12月11日申请的，申请号为202311692840.4，名称为“消毒系统及其运行方法、消毒设备”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及消毒技术领域，特别是涉及一种消毒系统及其运行方法、消毒设备。
背景技术
随着科学技术的发展和人民生活水平的提高，洗碗机作为一种可自动清洗厨具的厨房电器，被越来越多的家庭使用，给人们带来极大的生活便利。随着人们对洗碗机消毒需求的提升，洗碗机消毒技术逐渐由高温、紫外线消毒，朝着等离子体消毒转变。
然而，目前基于等离子消毒技术的洗碗机，在运行过程中很容易出现放电电极拉弧打火，进而烧蚀放电电极的现象。
发明内容
基于此，有必要提供一种消毒系统及其运行方法、消毒设备，以避免拉弧打火烧蚀放电电极的现象，提高消毒系统的消毒可靠性。
一种消毒系统，包括：水箱、介质管、放电电极、湿度检测器和控制装置，所述介质管设置于所述水箱，所述介质管与水接触的部分开设有出气孔，所述介质管的进气口用于输入待放电气体；所述放电电极位于所述介质管的内部；所述湿度检测器设置于所述介质管的进气口，用于检测待放电气体的湿度值；所述控制装置连接所述放电电极和所述湿度检测器，对应于在所述湿度值小于或等于预设湿度阈值的情况，控制所述放电电极以放电模式运行，对应于所述湿度值大于所述预设湿度阈值的情况，控制所述放电电极以加热模式运行。
在其中一个实施例中，所述水箱的顶部封闭且开设有出气口，所述消毒系统还包括气体循环装置，所述水箱的出气口和所述介质管的进气口分别连接所述气体循环装置。
在其中一个实施例中，所述气体循环装置包括气泵和气流均流器，所述气泵连接所述气流均流器，所述气泵连接所述水箱的出气口。所述介质管的数量为多个，各所述介质管的进气口分别连接所述气流均流器。
在其中一个实施例中，所述气流均流器包括气流主路和多条气流支路，所述气流主路连 接所述气泵，各所述多条气流支路分别连接所述气流主路，每一气流支路均对应连接一介质管的进气口；其中，所述多个气流支路的管径设置为不同。
在其中一个实施例中，各所述气流支路管径根据随着所述气泵的距离的增加而增加。
在其中一个实施例中，还包括绝缘支架，所述介质管的数量为多个，各所述介质管通过所述绝缘支架固定设置于所述水箱。
在其中一个实施例中，所述控制装置包括高压电源和控制器。所述介质管的数量为多个，所述放电电极与所述介质管一一对应设置，各所述放电电极分别连接所述高压电源，所述高压电源和所述湿度检测器分别连接所述控制器。
在其中一个实施例中，所述绝缘支架为开设有多个通孔的绝缘板，每一介质管通过一对应的通孔固定设置。
在其中一个实施例中，每一介质管为石英管、玻璃管或者陶瓷管；每一介质管的底部与水接触的部分，开设的出气孔的数量为多个。
在其中一个实施例中，所述介质管的数量为多个；至少两个所述多个介质管的进气口分别设置有一所述湿度检测器。
在其中一个实施例中，所述放电电极与所述介质管同轴设置。
一种消毒系统的运行方法，包括：实时获取输入消毒系统的介质管的待放电气体的湿度值；其中，所述介质管设置于所述消毒系统的水箱，所述介质管与水接触的部分开设有出气孔，所述介质管的进气口用于输入待放电气体，所述消毒系统的放电电极设置于所述介质管的内部；对应于所述湿度值小于或等于预设湿度阈值的情况，控制所述放电电极以放电模式运行。对应于所述湿度值大于所述预设湿度阈值的情况，控制所述放电电极以加热模式运行。
在其中一个实施例中，所述实时获取输入消毒系统的介质管的待放电气体的湿度值的步骤之前，还包括：校验是否需要开启消毒工作；对应需要开启消毒工作的情况，控制消毒系统中气体循环装置的气泵开启，并执行所述实时获取输入消毒系统的介质管的待放电气体的湿度值的步骤。
在其中一个实施例中，所述控制所述放电电极以放电模式运行，包括：控制消毒系统的高压电源向所述放电电极输出第一电压信号；所述控制所述放电电极以加热模式运行，包括：控制消毒系统的高压电源向所述放电电极输出第二电压信号；其中，所述第一电压信号的电压值大于所述第二电压信号的电压值。
一种消毒设备，包括上述的任一消毒系统。
在其中一个实施例中，所述消毒设备为洗碗机。
上述消毒系统及其运行方法、消毒设备，包括水箱、介质管、放电电极、湿度检测器和控制装置，介质管设置于水箱，且与水接触的部分开设有出气孔；放电电极位于介质管的内部，且与介质管同轴设置，同时还在介质管的进气口设置有湿度检测器，湿度检测器和放电电极均连接控制装置。如此，在消毒系统运行的过程中，待放电气体从介质管的进气口输入，通过放电电极与介质管之间的环形气隙形成等离子体，并经过介质管的出气孔进入水箱的水中，得到水中放电等离子体，以此实现消毒操作。上述方案，在水中放电等离子体形成的过程中，可对介质管的进气口输入的待放电气体进行湿度监测，对应于湿度值小于或等于预设湿度阈值的情况，放电电极运行在放电模式，对应于湿度值大于预设湿度阈值的情况，放电电极运行在加热模式，去除待放电气体中的水分。通过该种方式，可大大降低放电电极表面的水迹，缓解放电电极由于表面水迹，引起拉弧打火烧蚀放电电极的现象，提高消毒系统的消毒可靠性。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例中消毒系统结构示意图；
图2为本申请另一实施例中消毒系统结构示意图；
图3为本申请又一实施例中消毒系统结构示意图；
图4为本申请再一实施例中消毒系统结构示意图；
图5为本申请一实施例中消毒系统的运行方法流程示意图；
图6为本申请另一实施例中消毒系统的运行方法流程示意图。
附图标记说明：
11-水箱，12-介质管，13-放电电极，14-湿度检测器，15-控制装置，121-出气孔，122-进气口，111-出气口；
21-气体循环装置，301-气泵，302-气流均流器，303-绝缘支架，3021-气流主路，3022-气流支路；
401-高压电源，402-控制器。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
本申请实施例提供的消毒系统，应用在消毒设备中，具体而言，应用在利用水中放电等离子体进行消毒的这一类型消毒设备中，例如，洗碗机等。其中，水中放电等离子体指的是在水溶液环境中放电产生的等离子体，水中放电等离子体在产生过程中常常伴随着紫外辐射、冲击波、局部高温、强电场和各类活性化学自由基的生成，这些物理、化学效应使得液相等离子体在水体杀菌消毒领域有广阔的应用前景。故在本申请的方案中，通过放电电极的高压放电，在放电电极与介质管之间的环形气隙形成等离子体，并将产生的活性物质通过介质管的出气孔，进入水中，从而得到具备消毒功能的消毒水。
请结合参阅图1，本申请提供一种消毒系统，包括：水箱11、介质管12、放电电极13、湿度检测器14和控制装置15。介质管12设置于水箱11中，介质管12与水接触的部分开设有出气孔121，介质管12的进气口122用于输入待放电气体；放电电极13位于介质管12的内部，且与介质管12同轴设置；湿度检测器14设置于介质管12的进气口122，用于检测待放电气体的湿度值；控制装置15连接放电电极13和湿度检测器14，用于在湿度值小于或等于预设湿度阈值的情况下，控制放电电极13以放电模式运行，在湿度值大于预设湿度阈值的情况下，控制放电电极13以加热模式运行。
具体地，水箱11即为用来存储水的箱体。可以理解，在实际场景下，水箱11存储的水需要喷淋以进行清洗和/或消毒操作，故水箱11还应开设有进水口和出水口，进水口和出水口可根据实际需求进行开启和关闭控制，从而实现水箱11存水量的调控。进水口和出水口的设置位置不做限定，只要不会影响消毒运行即可。
介质管12即为用来放置放电电极13，并在放电电极13放电运行的情况下，通过与放电电极13之间的环形气隙，形成等离子体的管子。介质管12的具体材质并不是唯一的，在一个较为详细的实施例中，可以是石英管、玻璃管或者陶瓷管，在其它实施例中，还可采用其它类型的无机材料，具体不做限定。介质管12的底部与水接触的部分，开设的出气孔121的数量并不是唯一的，具体结合实际需求设置即可。
放电电极13也即能够在电场或电流的作用下，在其表面或附近产生等离子体的电极。待放电气体即为等待通过放电电极13放电，以生成等离子体的气体。控制装置15即为向放电电极13施加电压，控制放电电极13运行的器件。湿度检测器14的具体类型并不是唯一的， 较为详细的，在一个实施例中，可采用湿度传感器。
湿度检测器14通过有线或者无线通信的方式，与控制装置15连接，在消毒系统以消毒模式运行，介质管12的进气口122输入待放电气体的过程中，湿度检测器14实时对待放电气体进行湿度检测，获取待放电气体的湿度值，并发送至控制装置15。
可以理解，湿度检测器14的设置位置以及设置数量均不是唯一的，在一个实施例中，考虑到输入各个介质管12的待放电气体来源均相同，湿度值基本一致，故可以仅在其中一个介质管12的进气口122设置湿度检测器14，以节约系统成本。在另外的实施例中，还可在至少两个介质管12的进气口122设置湿度检测器14，以多个湿度检测器14的检测结果进行均值计算，得到待放电气体的湿度值，以此进行运行控制，从而减小湿度检测器14的测量误差，提高湿度值的准确性。
预设湿度阈值指的是引起拉弧打火烧蚀电极的现象时，待放电气体所达到的最小湿度值，也可以理解为不会发生拉弧打火烧蚀电极的现象时，待放电气体所能达到的最大湿度值，也即预设湿度阈值为是否会引起拉弧打火烧蚀电极现象的湿度临界值。预设湿度阈值的具体大小并不是唯一的，根据消毒系统的器件结构或参数不同，预设湿度阈值也会有所区别，例如，在一个较为详细的实施例中，预设湿度阈值可设置为50％。
预设湿度阈值的获取方式并不是唯一的，在一个实施例中，可通过实验场景下，对与当前消毒系统一致的实验消毒系统进行测试得到，并写入当前消毒系统中，在后续直接调用即可。
控制装置15在接收到湿度值之后，将会与预设湿度阈值进行比较分析，在湿度值小于或等于预设湿度阈值的情况下，表征当前并不会由于待放电气体的湿度引起拉弧打火显现，此时直接控制放电电极13以放电模式运行，放电产生等离子体即可。在湿度值大于预设湿度阈值的情况下，表征此时若以放电模式运行，输入的待放电气体会引起拉弧打火现象，故此时控制装置15控制放电电极13以加热模式运行，通过加热降低待放电气体中的水分，也即降低湿度值。最终使得放电电极13以湿度值小于或等于预设湿度阈值的待测放电气体进行放电，降低出现拉弧打火现象的可能。
上述消毒系统，包括水箱11、介质管12、放电电极13、湿度检测器14和控制装置15，介质管12设置于水箱11，且与水接触的部分开设有出气孔121；放电电极13位于介质管12的内部，且与介质管12同轴设置，同时还在介质管12的进气口122设置有湿度检测器14，湿度检测器14和放电电极13均连接控制装置15。如此，在消毒系统运行的过程中，待放电气体从介质管12的进气口122输入，通过放电电极13与介质管12之间的环形气隙形成等离 子体，并经过介质管12的出气孔121进入水箱11的水中，得到水中放电等离子体，以此实现消毒操作。上述方案，在水中放电等离子体形成的过程中，可对介质管12的进气口122输入的待放电气体进行湿度监测，在湿度值小于或等于预设湿度阈值的情况下，放电电极13运行在放电模式，在湿度值大于预设湿度阈值的情况下，放电电极13运行在加热模式，去除待放电气体中的水分。通过该种方式，可大大降低放电电极13表面的水汽，缓解放电电极13由于表面水汽，引起拉弧打火烧蚀放电电极13的现象，提高消毒系统的消毒可靠性。
请参阅图2，在其中一个实施例中，水箱11的顶部封闭且开设有出气口111，消毒系统还包括气体循环装置21，水箱11的出气口111和介质管12的进气口122分别连接气体循环装置21。
具体地，本实施例的方案，消毒系统具体为循环消毒系统，水箱11的顶部封闭且开设有出气口111，气体循环装置21连接水箱11的出气口111和介质管12的进气口122。如此，待放电气体经过介质管12的进气口122进入介质管12，被放电电极13电离之后，形成具备等离子体的气体，并通过介质管12的出气孔121排出，进入水箱11的水中。具备等离子体的气体部分溶解在水中，形成具备消毒功能的等离子水体，部分经过水箱11的出气口111排出，进入气体循环装置21进行传输，再次由介质管12的进气口122进入介质管12，被放电电极13再次电离并进入水中，如此实现循环电离。
通过本实施例的方案，可实现待放电气体的实时循环电离，有效提高水中等离子体的含量，同时还可有效避免待放电气体电离产生的臭氧泄漏到大气中，造成环境污染。
应当指出的是，气体循环装置21的具体结构并不是唯一的，只要能够实现待放电气体在消毒系统中的循环电离处理均可。请参阅图3，在其中一个实施例中，气体循环装置21包括气泵301和气流均流器302，气泵301连接气流均流器302，气泵301连接水箱11的出气口111，各介质管12的进气口122分别连接气流均流器302。
具体地，气泵301即为向封闭空间添加空气的装置，其具体类型并不唯一，可以是各类型的电动气泵，具体不做限定。气流均流器302即为对气流进行均匀分配，以从各个输出端均匀输出的装置。在实际应用场景下，放电电极13的数量并不是唯一的，每一个放电电极13均对应同轴设置在一个介质管12中，形成单个反应器，各个反应器的结构均一致，可以阵列排布或者其他排布方式，设置于水箱11中。为确保各个反应器在运行时，均能通过放电来电离待放电气体，以产生等离子体，同时也为了确保等离子体产生的均匀性。本实施例的方案，气体循环装置21包括气泵301和气流均流器302，气泵301连接气流均流器302的输入端，气流均流器302的各个输出端，分别连接一个介质管12的进气口122。
具体而言，气流均流器302的结构并不是唯一的，其可以是通过在气流均流器302的输出端设置电磁阀等阀门装置，使得各个输出端输出的气体流量均一致。在另外的实施例中，也可通过对各个输出端进行差异化设置的方式，使得各个输出端的气流一致。例如，在其中一个实施例中，请结合参阅图3，气流均流器302包括气流主路3021和气流支路3022，气流主路3021连接气泵301，各气流支路3022分别连接气流主路3021，每一气流支路3022均对应连接一介质管12的进气口122；其中，各气流支路3022的管径设置为不同。
具体地，本实施例的方案，气流均流器302包括一气流主路3021，以及与气流主路3021分别连接的气流支路3022，气体的流量主要和流速和管道的截面积相关，在流速不变的情况下，管道的截面积越大，气体流量也越大；在管道的截面积不变的情况下，流速越大，同样气体流量也越大。而在气体循环装置21中，由于各个气流支路3022连接气流主路3021的位置不同，各个气流支路3022之间的气流流速会存在一定的差异。因此，为确保各个气流支路3022的气流流量一致，也即确保各个气流支路3022之间的气流均匀性，需要对各个气流支路3022的管径进行差异化设置，改变各个气流支路3022的管道截面积，最终达到气流均流的效果。通过该种方式，以气流主路3021以及管径差异化设置的各个气流支路3022，搭建形成气流均流器302，在实现气流均匀的同时，还可大大降低硬件成本。
进一步地，在其中一个实施例中，各气流支路3022管径随着与气泵301的距离的增加而增加。
具体地，在实际应用场景中，气泵301输出的待放电气体在气流主路3021传输的过程中，依次进入各个气流支路3022，随着距离气泵301越来越远，气体流速也会逐渐降低。因此，为确保各个气流支路3022的气流均匀性，可将距离气泵301越远的气流支路3022的管径设置越大，将距离气泵301越近的气流支路3022的管径设置越小，进而使得各个气流支路3022的气体流量一致，如此，可有效提高气流均流器302的气流均流效果。
请参阅图3，在其中一个实施例中，消毒系统还包括绝缘支架303，各介质管12通过绝缘支架303固定设置于水箱11。
具体地，为提高介质管12在水箱11中的设置稳定性，本实施例的方案，还可额外设置一个绝缘支架303，以将各个介质管12固定设置，提高消毒系统的运行稳定性。绝缘支架303的具体类型并不是唯一的，只要是能够将多个介质管12同时固定这一类型的支架均可。例如，在一个较为详细的实施例中，绝缘支架303为开设有多个通孔的绝缘板，各个通孔的直径与介质管12的直径匹配，以使得各个介质管12可通过通孔固定设置。进一步地，在一个实施例中，为提高等离子体的均匀性，需将介质管12阵列设置，相应的，绝缘板开设的各个通孔 需阵列排布。
可以理解，绝缘支架303在水箱11中的设置位置并不是唯一的，在一个实施例中，为避免绝缘支架303对水体中的等离子体分布造成影响，可将绝缘支架303设置于水箱11的顶部，具体可以是水箱11内部或者外部，也即可以是水箱11的顶部外表面或者顶部内表面。
请参阅图4，在其中一个实施例中，控制装置15包括高压电源401和控制器402，各放电电极13分别连接高压电源401，高压电源401和湿度检测器14(见图1)分别连接控制器402。
具体地，控制装置15的具体类型并不是唯一的，其需要具备为放电电极13提供工作电压，还需要具备根据湿度值进行分析处理的功能，故本实施例的方案，控制装置15具体包括高压电源401和控制器402(可以是微控制单元或者单片机等)两部分。在实际运行过程中，控制器402获取湿度值并与预设湿度阈值进行比较分析，对应于湿度值小于或等于预设湿度阈值的情况，控制器402控制高压电源401为放电电极13输出较高电压，实现高压放电；对应于湿度值大于预设湿度阈值的情况，控制器402控制高压电源401输出较低电压，使得放电电极13以加热模式运行，达到除湿的功能。
应当指出的是，请结合参阅图4，在一个较为详细的实施例中，为提高消毒系统的运行安全性，可将各个放电电极13的正端分别连接到高压电源401的正端，而各个放电电极13的负端，以及高压电源401的负端均接地设置。
请参阅图5，本申请提供一种消毒系统的运行方法，包括步骤502、步骤504和步骤506。
步骤502，实时获取输入消毒系统的介质管12的待放电气体的湿度值。
步骤504，对应于湿度值小于或等于预设湿度阈值的情况，控制放电电极13以放电模式运行。
步骤506，对应于湿度值大于预设湿度阈值的情况，控制放电电极13以加热模式运行。
其中，介质管12设置于消毒系统的水箱11，介质管12与水接触的部分开设有出气孔121，介质管12的进气口122用于输入待放电气体，消毒系统的放电电极13设置于介质管12的内部。
具体地，水箱11即为用来存储水的箱体。可以理解，在实际场景下，水箱11存储的水需要喷淋以进行清洗和/或消毒操作，故水箱11还应开设有进水口和出水口，进水口和出水口可根据实际需求进行开启和关闭控制，从而实现水箱11存水量的调控。进水口和出水口的设置位置不做限定，只要不会影响消毒运行即可。
介质管12即为用来放置放电电极13，并在放电电极13放电运行的情况下，通过与放电电极13之间的环形气隙，形成等离子体的管子。介质管12的具体材质并不是唯一的，在一个较为详细的实施例中，可以是石英管、玻璃管或者陶瓷管，在其它实施例中，还可采用其它类型的无机材料，具体不做限定。介质管12的底部与水接触的部分，开设的出气孔121的数量并不是唯一的，具体结合实际需求设置即可。
放电电极13也即能够在电场或电流的作用下，在其表面或附近产生等离子体的电极。待放电气体即为等待通过放电电极13放电，以生成等离子体的气体。控制装置15即为向放电电极13施加电压，控制放电电极13运行的器件。湿度检测器14的具体类型并不是唯一的，较为详细的，在一个实施例中，可采用湿度传感器。
湿度检测器14通过有线或者无线通信的方式，与控制装置15连接，在消毒系统以消毒模式运行，介质管12的进气口122输入待放电气体的过程中，湿度检测器14实时对待放电气体进行湿度检测，获取待放电气体的湿度值，并发送至控制装置15。
可以理解，湿度检测器14的设置位置以及设置数量均不是唯一的，在一个实施例中，考虑到输入各个介质管12的待放电气体来源均相同，湿度值基本一致，故可以仅在其中一个介质管12的进气口122设置湿度检测器14，以节约系统成本。在另外的实施例中，还可在至少两个介质管12的进气口122设置湿度检测器14，以多个湿度检测器14的检测结果进行均值计算，得到待放电气体的湿度值，以此进行运行控制，从而减小湿度检测器14的测量误差，提高湿度值的准确性。
预设湿度阈值指的是引起拉弧打火烧蚀电极的现象时，待放电气体所达到的最小湿度值，也可以理解为不会发生拉弧打火烧蚀电极的现象时，待放电气体所能达到的最大湿度值，也即预设湿度阈值为是否会引起拉弧打火烧蚀电极现象的湿度临界值。预设湿度阈值的具体大小并不是唯一的，根据消毒系统的器件结构或参数不同，预设湿度阈值也会有所区别，例如，在一个较为详细的实施例中，预设湿度阈值可设置为50％。
预设湿度阈值的获取方式并不是唯一的，在一个实施例中，可通过实验场景下，对与当前消毒系统一致的实验消毒系统进行测试得到，并写入当前消毒系统中，在后续直接调用即可。
控制装置15在接收到湿度值之后，将会与预设湿度阈值进行比较分析，在湿度值小于或等于预设湿度阈值的情况下，表征当前并不会由于待放电气体的湿度引起拉弧打火显现，此时直接控制放电电极13以放电模式运行，放电产生等离子体即可。在湿度值大于预设湿度阈值的情况下，表征此时若以放电模式运行，输入的待放电气体会引起拉弧打火现象，故此时 控制装置15控制放电电极13以加热模式运行，通过加热降低待放电气体中的水分，也即降低湿度值。最终使得放电电极13以湿度值小于或等于预设湿度阈值的待测放电气体进行放电，降低出现拉弧打火现象的可能。
上述消毒系统的运行方法，在消毒系统运行的过程中，待放电气体从介质管12的进气口122输入，通过放电电极13与介质管12之间的环形气隙形成等离子体，并经过介质管12的出气孔121进入水箱11的水中，得到水中放电等离子体，以此实现消毒操作。上述方案，在水中放电等离子体形成的过程中，可对介质管12的进气口122输入的待放电气体进行湿度监测，在湿度值小于或等于预设湿度阈值的情况下，放电电极13运行在放电模式，在湿度值大于预设湿度阈值的情况下，放电电极13运行在加热模式，去除待放电气体中的水分。通过该种方式，可大大降低放电电极13表面的水汽，缓解放电电极13由于表面水汽，引起拉弧打火烧蚀放电电极13的现象，提高消毒系统的消毒可靠性。
请参阅图6，在其中一个实施例中，步骤502之前，该方法还包括步骤602和步骤604。
步骤602，校验是否需要开启消毒工作。
步骤604，对应于需要开启消毒工作的情况，控制消毒系统中气体循环装置的气泵301开启。并执行步骤502实时获取输入消毒系统的介质管的待放电气体的湿度值的步骤。
具体地，本申请实施例的方案，水箱11中存储的水，不仅可以用来对待清洁器件(例如餐具)进行清洗操作，还可用来对待消毒器件(同样可为餐具)进行消毒操作。在对待清洁器件进行清洗的过程中，为避免不必要的电能浪费，也为了减少消毒系统的循环运行次数，增加消毒系统的使用寿命，此时并不需要开启放电电极13进行放电。故在对待放电气体的湿度值开启检测之前，需判断是否需要开启消毒操作，也即判断是否接收到消毒指令，或者判断清洗是否完成，在清洗完成或者接收到消毒指令的情况下，认为需要开启消毒工作。
本实施例的方案，消毒系统为循环消毒系统，在需要开启消毒的情况下，首先控制装置15需控制气泵301开启运行，以将待放电气体输送至介质管12。在这之后，控制装置15在结合实时获取的湿度值，确定放电电极13的工作状态，也即结合实时获取的湿度值，动态调整放电电极13的运行状态。
在其中一个实施例中，控制放电电极13以放电模式运行，包括：控制消毒系统的高压电源401向放电电极13输出第一电压信号；控制放电电极13以加热模式运行，包括：控制消毒系统的高压电源401向放电电极13输出第二电压信号。其中，第一电压信号的电压值大于第二电压信号的电压值。
具体地，本方案中，控制装置15具体包括高压电源401和控制器402，消毒系统的运行 方法均通过控制器402实现。放电电极13运行在放电模式和加热模式时，具体通过控制高压电源401向放电电极13输出不同大小的电压信号实现。等离子放电的电压通常较高，需要达到数百伏特到数千伏特之间，这是因为等离子体是一种高能量物质，需要通过强大的电场来形成和维持。而在加热过程中，所需的ID按压一般较低，通常在几十到几百伏特之间，这是因为加热过程主要是通过电流的热效应来实现的，而热效应的效率与电压的平方成正比，因此较低的电压可以更有效地实现加热过程。通过该方案，以改变输入放电电极13的电压大小的方式，控制放电电极13运行在放电模式或者加热模式，实现方式简单，具有较高的调控效率。
本申请还提供一种消毒设备，包括上述的消毒系统，控制装置15用于执行上述运行方法的步骤。
具体地，消毒系统及其运行方法如上述各个实施例以及附图所示，在此不再赘述。消毒系统包括水箱11、介质管12、放电电极13、湿度检测器14和控制装置15，介质管12设置于水箱11，且与水接触的部分开设有出气孔121；放电电极13位于介质管12的内部，且与介质管12同轴设置，同时还在介质管12的进气口122设置有湿度检测器14，湿度检测器14和放电电极13均连接控制装置15。如此，在消毒系统运行的过程中，待放电气体从介质管12的进气口122输入，通过放电电极13与介质管12之间的环形气隙形成等离子体，并经过介质管12的出气孔121进入水箱11的水中，得到水中放电等离子体，以此实现消毒操作。上述方案，在水中放电等离子体形成的过程中，可对介质管12的进气口122输入的待放电气体进行湿度监测，在湿度值小于或等于预设湿度阈值的情况下，放电电极13运行在放电模式，在湿度值大于预设湿度阈值的情况下，放电电极13运行在加热模式，去除待放电气体中的水分。通过该种方式，可大大降低放电电极13表面的水汽，缓解放电电极13由于表面水汽，引起拉弧打火烧蚀放电电极13的现象，提高消毒可靠性。
可以理解，消毒设备的具体类型并不是唯一的，在其中一个实施例中，消毒设备为洗碗机。
具体地，本实施例的方案，在水箱11的底部开设有进水口和出水口，在洗碗机执行清洗作业的过程中，气泵301、放电电极13以及湿度检测器14无需开启运行，此时只需控制水箱11的出水口打开，将水输送到清洗仓对餐具和厨具进行清洁即可。而在洗碗机执行消毒作业时，需要气泵301、放电电极13以及湿度检测器14开启运行，通过放电电极13对待放电气体进行电离，得到富含等离子体的活化水之后，通过水箱11的出水口喷洒到餐具或者厨具， 实现消毒操作。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种消毒系统，其特征在于，包括：
    水箱；
    介质管，设置于所述水箱，所述介质管与水接触的部分开设有出气孔，所述介质管的进气口用于输入待放电气体；
    放电电极，位于所述介质管的内部；
    湿度检测器，设置于所述介质管的进气口，用于检测待放电气体的湿度值；
    控制装置，连接所述放电电极和所述湿度检测器，用于对应于所述湿度值小于或等于预设湿度阈值的情况，控制所述放电电极以放电模式运行，对应于所述湿度值大于所述预设湿度阈值的情况，控制所述放电电极以加热模式运行。
  2. 根据权利要求1所述的消毒系统，其特征在于：
    所述水箱的顶部封闭且开设有出气口；
    所述消毒系统还包括气体循环装置；
    所述水箱的出气口和所述介质管的进气口分别连接所述气体循环装置。
  3. 根据权利要求2所述的消毒系统，其特征在于：
    所述气体循环装置包括气泵和气流均流器，所述气泵连接所述气流均流器，所述气泵连接所述水箱的出气口；
    所述介质管的数量为多个，各所述介质管的进气口分别连接所述气流均流器。
  4. 根据权利要求3所述的消毒系统，其特征在于，所述气流均流器包括一气流主路和多条气流支路，所述气流主路连接所述气泵，各所述多条气流支路分别连接所述气流主路，每一气流支路均对应连接一介质管的进气口；其中，所述多个气流支路的管径设置为不同。
  5. 根据权利要求4所述的消毒系统，其特征在于，各所述气流支路管径随着与所述气泵的距离的增加而增加。
  6. 根据权利要求1-5任意一项所述的消毒系统，其特征在于，还包括绝缘支架，所述介质管的数量为多个，各所述介质管通过所述绝缘支架固定设置于所述水箱。
  7. 根据权利要求1-6任意一项所述的消毒系统，其特征在于，所述控制装置包括高压电源和控制器；
    所述介质管的数量为多个，所述放电电极与所述介质管一一对应设置，各所述放电电极分别连接所述高压电源，所述高压电源和所述湿度检测器分别连接所述控制器。
  8. 根据权利要求6所述的消毒系统，其特征在于，所述绝缘支架为开设有多个通孔的绝 缘板，每一介质管通过一对应的通孔固定设置。
  9. 根据权利要求1-8任意一项所述的消毒系统，其特征在于，
    每一介质管为石英管、玻璃管或者陶瓷管；每一介质管的底部与水接触的部分，开设的出气孔的数量为多个。
  10. 根据权利要求1-9任意一项所述的消毒系统，其特征在于，所述介质管的数量为多个；至少两个所述多个介质管的进气口分别设置有一所述湿度检测器。
  11. 根据权利要求1或2所述的消毒系统，其特征在于，所述放电电极与所述介质管同轴设置。
  12. 一种消毒系统的运行方法，其特征在于，包括：
    实时获取输入消毒系统的介质管的待放电气体的湿度值；其中，所述介质管设置于所述消毒系统的水箱，所述介质管与水接触的部分开设有出气孔，所述介质管的进气口用于输入待放电气体，所述消毒系统的放电电极设置于所述介质管的内部；
    对应于所述湿度值小于或等于预设湿度阈值的情况，控制所述放电电极以放电模式运行；
    对应于所述湿度值大于所述预设湿度阈值的情况，控制所述放电电极以加热模式运行。
  13. 根据权利要求12所述的运行方法，其特征在于，所述实时获取输入消毒系统的介质管的待放电气体的湿度值的步骤之前，还包括：
    校验是否需要开启消毒工作；
    对应需要开启消毒工作的情况，控制消毒系统中气体循环装置的气泵开启，并执行所述实时获取输入消毒系统的介质管的待放电气体的湿度值的步骤。
  14. 根据权利要求12或13所述的运行方法，其特征在于：
    所述控制所述放电电极以放电模式运行，包括：控制消毒系统的高压电源向所述放电电极输出第一电压信号；
    所述控制所述放电电极以加热模式运行，包括：控制消毒系统的高压电源向所述放电电极输出第二电压信号；其中，所述第一电压信号的电压值大于所述第二电压信号的电压值。
  15. 一种消毒设备，其特征在于，包括权利要求1-11任意一项所述的消毒系统。
  16. 根据权利要求15所述的消毒设备，其特征在于，所述消毒设备为洗碗机。
PCT/CN2024/115841 2023-12-11 2024-08-30 消毒系统及其运行方法、消毒设备 Pending WO2025123795A1 (zh)

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