Air purification device

Abstract

The utility model provides an air purification device which comprises a shell, an electrolytic cavity is defined in the shell, and electrolyte is stored in the electrolytic cavity; the electrolysis assembly is arranged in the electrolysis cavity and comprises at least one cathode and one anode, and the cathodes and the anodes are arranged at intervals; and the air inlet assembly is constructed to communicate the electrolysis cavity with an external air environment, and is suitable for extracting air into the electrolysis cavity, so that the air and the electrolyte form a hydrogen peroxide solution, and at least one part of microorganisms in the air are removed. At least a part of microorganisms, dust and harmful gas carried in air passing through the air purification device can be effectively removed under the action of the hydrogen peroxide solution, the air purification device also has a pollution-free humidification effect, and in addition, due to the fact that the stability of the hydrogen peroxide solution is low at the room temperature, the air purification effect is good. In addition, hydrogen peroxide volatilized by the air purification device can be quickly decomposed into water and oxygen, so that a user in the air environment cannot be hurt.

Description

Technical Field

[0001] At least one embodiment of the utility model relates to the technical field of air purification, and in particular to an air purification device. Background Art

[0002] Based on the different purification principles of air purifiers, they can be mainly divided into filtering type, adsorption type, negative ion type and killing type. Among them, filtering type air purifiers filter some larger particles in the air by setting filter materials with corresponding apertures; adsorption type air purifiers adsorb some toxic gases and / or organic substances in the air by setting some adsorbents (such as activated carbon); negative ion type air purifiers combine the generated negative ions with positive ions in the air (such as dust, bacteria and viruses, etc.) and remove them by dust; killing type air purifiers mostly destroy the biological structure of microorganisms in the air through ultraviolet rays and / or generated ozone.

[0003] Based on the above four types of air purification devices, the first two types have poor effects on removing microorganisms in the air. Negative ion air purification devices have a certain effect on removing microorganisms in the air, but they need to be cleaned and maintained frequently. Air purification devices that use ultraviolet rays and / or ozone to kill microorganisms have strict usage requirements (such as using them in unmanned environments) because ultraviolet rays and high concentrations of ozone can cause harm to users in the air environment.

[0004] In view of this, how to provide an air purification device with more effective removal capability for microorganisms has become a technical problem to be solved urgently. Utility Model Content

[0005] In order to solve at least one of the above and other technical problems in the prior art, the utility model provides an air purification device suitable for removing at least a part of microorganisms in the air environment.

[0006] An embodiment of the utility model provides an air purification device, comprising: a shell, an electrolysis chamber is defined in the shell, and an electrolyte is stored in the electrolysis chamber; an electrolysis component is arranged in the electrolysis chamber, comprising at least one cathode and an anode, and the cathode and the anode are arranged at intervals; and an air intake component is configured to connect the electrolysis chamber with an external air environment, and is suitable for drawing air into the electrolysis chamber so that the air and the electrolyte form a hydrogen peroxide solution and remove at least a part of the microorganisms, dust and harmful gases in the air; wherein the air intake component comprises: an aerator, which is arranged at the bottom of the electrolysis chamber; an air induced mechanism, the air intake end of the air induced mechanism is connected to the external air environment; and an air intake pipe, which is arranged between the exhaust end of the air induced mechanism and the aerator.

[0007] According to an embodiment of the utility model, the air purification device also includes an electric control component electrically connected to the above-mentioned electrolytic component.

[0008] According to an embodiment of the utility model, the above-mentioned electronic control component includes: a controller, suitable for supplying power to the above-mentioned cathode and the above-mentioned anode; a temperature sensor, which is communicatively connected to the above-mentioned controller and suitable for collecting the temperature signal of the above-mentioned electrolyte; and a liquid level sensor, which is communicatively connected to the above-mentioned controller and suitable for collecting the liquid level signal of the above-mentioned electrolyte.

[0009] According to an embodiment of the utility model, the electrolysis assembly further comprises a gas isolation grid arranged between the cathode and the anode, wherein the gas isolation grid is suitable for separating the electrolysis chamber into a cathode chamber having the cathode and an anode chamber having the anode; wherein the cathode chamber and the anode chamber are connected.

[0010] According to an embodiment of the utility model, the air purification device further comprises a plurality of baffles, which are staggeredly arranged on the facing surfaces of the air isolation grid and the anode to form an air passage arranged in an S shape from bottom to top.

[0011] According to an embodiment of the utility model, the air purification device also includes a partition, which is suitable for separating the shell into two cavities stacked up and down; wherein the cavity located in the upper part of the shell is used as the electrolysis chamber, and the air intake assembly is arranged in the cavity located in the lower part of the shell.

[0012] According to an embodiment of the utility model, the air intake assembly further comprises a one-way valve disposed on the air intake pipe to limit the electrolyte from flowing back through the aerator.

[0013] According to an embodiment of the utility model, the top of the shell is provided with an exhaust port suitable for exhausting purified air.

[0014] According to an embodiment of the utility model, an exhaust assembly is disposed at intervals on the top of the shell, and the exhaust assembly has a plurality of exhaust ports; wherein the plurality of exhaust ports are arranged in different directions toward the external air environment.

[0015] According to the air purification device provided by the utility model, the air intake assembly is suitable for guiding the external air into the electrolytic chamber arranged in the shell, and fully mixing the air and the electrolyte. Under the action of the cathode and the anode of the electrolytic assembly, the mixed electrolyte and air produce hydrogen peroxide solution through electrochemical synthesis. In the process of continuous mixing of air and electrolyte, the microorganisms carried in the air are destroyed in biological structure under the strong oxidizing action of the hydrogen peroxide solution, so as to achieve the purpose of removing at least part of the microorganisms in the air. In addition, since the stability of the hydrogen peroxide solution is low at room temperature, even if the hydrogen peroxide solution volatilizes from the electrolytic chamber, it will only decompose into water and oxygen, and will not cause harm to the user in the air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of an air purification device according to an exemplary embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A perspective view of the air purification device shown;

[0018] Figure 3 is a schematic structural diagram of an air purification device according to another exemplary embodiment of the utility model, showing an implementation method with multiple anodes and cathodes; and

[0019] Figure 4 This is a comparison chart of the sterilization effect of the hydrogen peroxide solution produced by the air purification device of the utility model. Figure 4 A shows the colonies of the culture dish without adding hydrogen peroxide solution. Figure 4 B shows the bacterial colonies in the culture dish to which hydrogen peroxide solution was added.

[0020] In the drawings, the meanings of the reference numerals are as follows:

[0021] 1. Exhaust assembly;

[0022] 11. Exhaust pipe;

[0023] 12. Exhaust port;

[0024] 2. Filling port;

[0025] 3. Electronic control components;

[0026] 31. Controller;

[0027] 32. Liquid level sensor;

[0028] 33. Temperature sensor;

[0029] 4. Baffle;

[0030] 5. Electrolyte;

[0031] 6. Drainage port;

[0032] 7. Air intake assembly;

[0033] 71. Intake pipe;

[0034] 72. One-way valve;

[0035] 73. Aerator;

[0036] 74. Air induction mechanism;

[0037] 8. Electrolytic components;

[0038] 81. Gas grille;

[0039] 82. Anode;

[0040] 83. cathode; and

[0041] 9. Shell. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0043] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "include", "comprises", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0044] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0045] When using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc. When using expressions such as "at least one of A, B, or C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.

[0046] Figure 1 It is a structural schematic diagram of an air purification device according to an illustrative embodiment of the utility model. Figure 2 yes Figure 1 A three-dimensional view of the air purification device shown.

[0047] According to the air purification device provided by the utility model, Figure 1 and Figure 2 As shown, it includes a shell 9, an electrolytic component 8 and an air intake component 7. An electrolytic chamber is defined in the shell 9, and an electrolyte 5 is stored in the electrolytic chamber. The electrolytic component 8 is arranged in the electrolytic chamber, and includes at least one cathode 83 and an anode 82, the cathode 83 and the anode 82 are arranged at intervals, and an air isolation grid 81 is provided between the cathode 83 and the anode 82, and the air isolation grid 81 is suitable for separating the electrolytic chamber into a cathode chamber with a cathode 83 and an anode chamber with an anode 82, and the cathode chamber and the anode chamber are connected. The air intake component 7 is configured to connect the electrolytic chamber with the external air environment, and is suitable for extracting air into the electrolytic chamber so that the air and the electrolyte 5 form a hydrogen peroxide solution, and remove at least a part of the microorganisms, dust and harmful gases in the air. Among them, the air intake component 7 includes an aerator 73, an air induction mechanism 74 and an air intake pipe 71. The aerator 73 is arranged at the bottom of the electrolytic chamber. The air inlet end of the air induction mechanism 74 is connected to the external air environment, and is suitable for supplying different air inlet amounts to the cathode chamber and the anode chamber. The air inlet pipe 71 is arranged between the exhaust end of the air induction mechanism 74 and the aerator 73 .

[0048] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the electrolytic assembly 8 includes an anode 82 and two cathodes 83 symmetrically arranged on both sides of the anode 82. In detail, the cathode 83 and the anode 82 are arranged along the extension direction of the housing 13 (such as Figure 1 The two members extend in the up-down direction as shown in the figure and are arranged in parallel and at intervals.

[0049] In an illustrative embodiment, the anode 82 includes but is not limited to being made of titanium, stainless steel and precious metal materials. In detail, the anode 82 includes but is not limited to being configured as a plate structure or a mesh structure with holes. Further, the cathode 83 includes but is not limited to being made of at least one of surface-activated carbon felt, graphite felt, and nitrogen-doped activated carbon. It should be understood that the embodiments of the utility model are not limited thereto.

[0050] For example, the cathode 83 and the anode 82 can be reactivated by alternating the cathode and the anode. Specifically, the carbon-based material is reactivated by exchanging the polarity of the cathode 83 and the anode 82, that is, using the carbon-based material as the anode 82 and the metal material as the cathode 83, wherein the oxidation time is 120 to 200 minutes and the oxidation current is 40 to 80 mA, so that the component can achieve a higher hydrogen peroxide production to ensure the air purification efficiency, thereby extending the service life of the air purification device.

[0051] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the air induction mechanism 74 includes a plurality of air pumps. In detail, a part of the air pumps is guided to the bottom of the anode chamber through the air inlet pipe 71, and another part of the air pumps is guided to the bottom of the cathode chamber through the air inlet pipe 71, so that the cathode chamber and the anode chamber have different air intake amounts. In a preferred embodiment, the amount of air entering the anode chamber can be configured to be less than the amount of air entering the cathode chamber. It should be understood that the embodiments of the utility model are not limited thereto.

[0052] For example, air valves with different flow rates or air valves with adjustable opening degrees may be arranged on different branches of the air intake pipe 71 .

[0053] In such an embodiment, the air isolation grid 81 plays a partitioning role, so as to separate the electrolytic chamber into a cathode chamber and an anode chamber that are connected, and supply different air intake amounts to the cathode chamber and the anode chamber respectively. Since the hydrogen peroxide solution is unstable and easy to decompose at room temperature, the air supply in the cathode chamber is increased to produce as much hydrogen peroxide solution as possible in the cathode chamber; and the air supply in the anode chamber is correspondingly reduced, thereby reducing the flow rate of the air to be purified through the hydrogen peroxide solution, so that the air is fully mixed with the hydrogen peroxide solution to achieve the technical effect of purifying the air.

[0054] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the air pump connected to the anode chamber and the air pump connected to the cathode chamber can be configured to use different air sources. In detail, the air source entering the cathode chamber can be connected to an external oxygen source, while the air source entering the anode chamber uses air to be purified.

[0055] In such an embodiment, the oxygen source has a higher concentration of oxygen than that in air, and is suitable for producing a more concentrated hydrogen peroxide solution.

[0056] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the surface of the cathode 83 facing the anode 82 is provided with a gas isolation grid 81 (such as Figure 1 The dotted line portion shown in the figure) is used to separate the electrolytic chamber into the cathode chamber (as shown in the figure). Figure 1 The left and right parts shown) and the anode chamber (such as Figure 1 In detail, the air-isolating grid 81 is provided with mesh holes to allow the electrolyte 5 to pass through. The air-isolating grid 81 includes but is not limited to at least one of gauze, linen, glass cloth, and plastic mesh.

[0057] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the air purification device further includes a plurality of baffles 4, which are staggeredly arranged on the facing surfaces of the air isolation grid 81 and the anode 82 to form an air passage arranged in an S shape from bottom to top.

[0058] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the facing surfaces of the gas isolation grid 81 and the anode 82 (such as those located at Figure 1 The right end surface of the air isolation grid 81 on the left side and the left end surface of the anode 82; Figure 1 A baffle 4 is provided on the left end surface of the air isolation grid 81 on the right side and the right end surface of the anode 82. Figure 1 As shown, the air-isolating grid 81 and the anode 82 are staggered in the vertical direction to form an S-shaped air passage on both sides of the anode 82 of the anode chamber. In this way, in the process of air passing through the anode chamber floating above the liquid surface of the hydrogen peroxide solution (i.e., the electrolyte), the S-shaped air passage extends the floating path of the bubbles and helps to break up the bubbles through the baffle 4 during the floating process of the bubbles, so as to more fully mix with the hydrogen peroxide solution, thereby being more conducive to purifying the air.

[0059] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the baffle 4 is configured to be inclined to the surface of the gas isolation grid 81 and the anode 82, and has an overall upward inclination. Further, the baffle 4 includes but is not limited to being configured as a swingable structure.

[0060] For example, the baffle 4 may be made of a plastic sheet (such as a PVC sheet) provided with folds. In this way, under the action of the water flow generated during the floating of the bubbles, the baffle 4 may swing within a certain angle, and in response to the elasticity and / or structure (such as the provided folds) of the baffle 4 itself, it may be reset in a direction opposite to the water flow direction to vibrate within a certain range, which can not only adapt to the flow rate swing of the air to be purified, but also further disperse the bubbles formed by the air through the vibration, so that the air and the hydrogen peroxide solution can be further fully mixed.

[0061] In such an embodiment, the air intake assembly 7 is suitable for guiding the external air into the electrolytic chamber provided in the housing, and fully mixing the air and the electrolyte 5. The cathode chamber is suitable for producing hydrogen peroxide. The hydrogen peroxide solution flows into the anode chamber through the mesh provided on the air isolation grid to mix with the air passing through the anode chamber. Under the strong oxidizing effect of the hydrogen peroxide solution, at least a part of the microorganisms (such as bacteria and viruses) carried in the air can be removed more effectively. At least a part of the dust entrained in the air can also be settled in the hydrogen peroxide solution, and a part of the harmful gases (such as hydrogen sulfide) can also be oxidized and removed by its strong oxidizing effect. On this basis, when the purified air is discharged from the air purification device, it will also carry a part of the water vapor (containing hydrogen peroxide), which can not only purify the upper part of the air purification device that is not immersed in the electrolyte 5 and the surrounding area of ​​the air purification device, prevent the growth of microorganisms in the air purification device, but also have a certain humidification effect. In addition, since the hydrogen peroxide solution has a low stability at room temperature, the hydrogen peroxide solution volatilized from the electrolytic chamber will also decompose into water and oxygen more quickly, and will not cause harm to the user in the air environment.

[0062] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the top of the housing 9 is provided with an exhaust port 12 suitable for exhausting purified air.

[0063] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the top of the housing 9 is provided with an exhaust assembly 1 at intervals, and the exhaust assembly 1 has a plurality of exhaust ports 12. The plurality of exhaust ports 12 are arranged in different directions toward the external air environment.

[0064] In an illustrative embodiment, Figure 1As shown, the plurality of exhaust ports 12 include but are not limited to being arranged on the side wall and / or the top cover of the top of the housing 9. In detail, the top of the electrolysis chamber in the housing 9 is provided with a plurality of exhaust pipes 11, and the plurality of exhaust pipes 11 are suitable for guiding the air purified by the air purification device to different exhaust ports 12, so that the purified gas is discharged to different areas outside the air purification device, so as to increase the coverage area of ​​the purification area of ​​the air purification device. It should be understood that the embodiments of the utility model are not limited thereto.

[0065] For example, a grille with an exhaust port 12 may be provided on the top cover of the housing 9. The grille may be configured as a rotating and / or swinging structure, and the direction and / or exhaust angle of the exhaust port 12 may be adjusted by an external motor.

[0066] In an illustrative embodiment, not shown in the figure, the plurality of exhaust ports 12 may be configured to communicate with different air environments.

[0067] For example, all the exhaust ports 12 are configured to be connected to the outdoor air environment, and the corresponding air inlet pipe 71 connected to the cathode chamber is configured to be connected to the outdoor air environment, and the air inlet pipe 71 connected to the anode chamber is configured to be connected to the indoor air environment. In this way, the air input from the outdoor air environment is used as the oxygen source for preparing the hydrogen peroxide solution, and the indoor air is also discharged to the outdoor air environment after being purified. In this way, when preparing the hydrogen peroxide solution, the oxygen in the indoor air environment is not consumed, which is more conducive to air purification in a small closed environment.

[0068] For another example, a portion of the exhaust ports 12 may be configured to communicate with an outdoor air environment, and another portion of the exhaust ports 12 may be configured to communicate with an indoor air environment.

[0069] For example, all the exhaust ports 12 are configured to communicate with the indoor air environment.

[0070] In such an embodiment, by configuring the exhaust port 12 to be connected to different air environments, air purification requirements in different usage scenarios can be met.

[0071] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the air purification device also includes an electric control component 3 electrically connected to the electrolytic component 8.

[0072] According to the embodiments of the present utility model, Figure 1 and Figure 2As shown, the electronic control component 3 includes a controller 33, a temperature sensor 32 and a liquid level sensor 31. The controller 33 is suitable for supplying power to the cathode 83 and the anode 82. The temperature sensor 32 is connected to the controller 33 for communication and is suitable for collecting the temperature signal of the electrolyte 5. The liquid level sensor 31 is connected to the controller 33 for communication and is suitable for collecting the liquid level signal of the electrolyte 5.

[0073] In an illustrative embodiment, the controller 33 is adapted to be electrically connected to the anode 82 and the cathode 83 through a wire, and electrically connect the anode 82 and the cathode 83 to an external circuit through a built-in circuit (such as an input circuit and / or an output circuit) to supply power to the anode 82 and the cathode 83. Further, the controller 33 is also configured to control the operating current and operating time of the cathode 83 and / or the anode 82. In this way, the start and stop control of the air purification device and the electrolysis rate can be achieved.

[0074] It should be noted here that the circuit configured by the controller 33 is not the protection point of the present invention, and any circuit in the art that can be used to supply power to the cathode 83 and the anode 82 (including voltage and / or current modulation) can be selected and applied.

[0075] In an illustrative embodiment, the signal output ends of the temperature sensor 32 and the liquid level sensor 31 are connected to the controller 33, and the controller 33 is suitable for collecting signals from the temperature sensor 32 and the liquid level sensor 31. The temperature sensor 32 includes but is not limited to a temperature probe, a platinum resistor or other temperature sensors suitable for detecting the temperature of the electrolyte 5, and the liquid level sensor 31 includes but is not limited to a float level sensor, a magnetic level gauge equipped with a reed sheet or other level sensors.

[0076] In an illustrative embodiment, Figure 1 As shown, the housing 9 of the air purification device is provided with a filling port 2 for adding electrolyte into the electrolytic chamber and a discharge port 6 for discharging the electrolyte in the electrolytic chamber.

[0077] In a preferred embodiment, the filling port 2 and the discharge port 6 may be connected to an external circulation device (not shown in the figure), and the circulation device may include a pump, a pipeline and a liquid storage component to timely discharge and / or inject the electrolyte in the electrolytic chamber and / or form an external circulation. Further, the pump of the external circulation device may be configured to communicate with the controller 33 so as to be controlled in coordination with the controller 33.

[0078] For example, the operating timing and / or operating duration of the circulation device can be controlled in response to the liquid level of the electrolyte 5 detected by the liquid level sensor 31. Preferably, the liquid level of the electrolyte 5 should be maintained below the filling port 2 and / or the discharge port 6, so that there is a certain distance between the liquid level of the electrolyte 5 and the discharge port 6, thereby preventing the electrolyte 5 from gushing out of the discharge port 6 or leaking through the filling port 2; and the liquid level of the electrolyte 5 should also be maintained above the baffle 4 at the highest position, so that the bubbles have as long a floating path as possible to fully mix with the hydrogen peroxide solution.

[0079] For another example, the operating timing and / or operating duration of the circulation device may be responsive to the temperature of the electrolyte 5 detected by the temperature sensor 32. Since the stability of the hydrogen peroxide solution is relatively poor and is greatly affected by temperature, it should be controlled at a relatively low preset temperature (for example, it can be maintained at 20°C to 25°C). When the temperature is lower than the preset temperature, the electrolyte can be externally circulated through the circulation device to cool it down.

[0080] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the air purification device further comprises a partition. The partition is suitable for separating the housing 9 into two cavities stacked one above the other. The cavity located at the upper part of the housing 9 is used as an electrolysis chamber, and the cavity located at the lower part of the housing 9 is provided with an air intake assembly 7.

[0081] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the housing 9 includes but is not limited to being constructed into a cubic structure. In detail, the cubic housing 9 defines a substantially cubic electrolytic chamber. Further, a partition extending in the horizontal direction is provided at the lower portion of the housing 9 to separate the interior of the housing into the electrolytic chamber located above and a cavity located at the lower portion. The electrolytic chamber is suitable for filling with an electrolyte (the electrolyte includes but is not limited to water and an aqueous hydrogen peroxide solution), and a portion of the air intake assembly 7 is suitable for being disposed in the cavity.

[0082] In an illustrative embodiment, Figure 1 and Figure 2 As shown, the aerator 73 includes but is not limited to a microporous aerator. In detail, the microporous aerator includes but is not limited to a disc-shaped structure that protrudes from the upper surface of the partition and is located below the cathode 82 and the anode 83. Further, the microporous aerator is provided with a plurality of micropores of different apertures so that the air passing through the microporous aerator forms fine and dense bubbles in the electrolyte to achieve aeration and sufficient mixing with the hydrogen peroxide solution.

[0083] According to the embodiments of the present utility model, Figure 1 and Figure 2As shown, the air intake assembly 7 further includes a one-way valve 72 disposed on the air intake pipe 71 to limit the electrolyte 5 from flowing back through the aerator 73 .

[0084] Figure 3 It is a schematic structural diagram of an air purification device according to another exemplary embodiment of the utility model, showing an implementation method with multiple anodes and cathodes.

[0085] According to another exemplary embodiment of the present utility model, Figure 3 As shown, a plurality of electrolytic components 8 may be arranged in the housing 9 of the air purification device, that is, an appropriate number of cathodes 83, anodes 82 and air-isolating grids 81 may be arranged to adapt to electrolytic chambers of different volumes, thereby adapting to the areas of different purification regions.

[0086] Figure 4 This is a comparison chart of the sterilization effect of the hydrogen peroxide solution produced by the air purification device of the utility model. Figure 4 A shows the colonies of the culture dish without adding hydrogen peroxide solution. Figure 4 B shows the bacterial colonies in the culture dish to which hydrogen peroxide solution was added.

[0087] refer to Figure 2 The air purification device shown uses water (such as tap water, purified water and at least one of pure water) as the electrolyte to carry out a sterilization experiment of a hydrogen peroxide solution generated by an electrochemical synthesis method.

[0088] The power of the air pump of the air induction mechanism 74 is configured to be 18W, and the air intake volume of the air input to the air purification device in response to the power is 20L / min. Furthermore, the cathode 83 adopts an oxidized graphite felt electrode, the anode 82 adopts a stainless steel mesh electrode, and the current density configured by the electric control component 2 is 1mA / cm 2 .

[0089] According to the "GB / T 38502-2020 Laboratory Sterilization Effect Test Method for Disinfectants" as the experimental standard, Gram-negative Escherichia coli (E. coil) and Gram-positive Staphylococcus aureus (S. aureus) were used to evaluate the sterilization effect of the hydrogen peroxide solution produced by the air purification device of the utility model. The specific experimental steps include:

[0090] Step 1: Add 100 μL of hydrogen peroxide solution to a 48-well plate, followed by 200 μL of sterile phosphate buffer containing bacterial suspension (104 CFU mL-1);

[0091] Step 2: Incubate the co-culture in a thermostat at 37°C for 6 h. Use bacterial culture medium without hydrogen peroxide solution as a control.

[0092] Step 3: Transfer the above co-culture to 100 μL of solid agar medium, incubate at 37°C for 16-24 h, count, photograph and record the colony forming units on the agar plate.

[0093] Step 4: Each experiment was repeated three times.

[0094] Reference Figure 4 A shows the colonies of the culture dish without adding hydrogen peroxide solution, Figure 4 B shows the bacterial colonies in the culture dish to which hydrogen peroxide solution was added.

[0095] It can be seen that after adding the hydrogen peroxide solution produced by the above-mentioned air purification device as a disinfectant, 99.99% of the bacteria in the above-mentioned strains were killed, which can prove that it has the effect of sterilization and disinfection and meets the requirement of removing at least part of the microorganisms in the air.

[0096] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only for reference to the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted when they may cause confusion in the understanding of the present invention.

[0097] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. An air purification device, characterized in that: include: A housing (9), wherein an electrolysis chamber is defined within the housing (9), and an electrolyte (5) is stored in the electrolysis chamber; An electrolysis assembly (8) is arranged in the electrolysis chamber, comprising at least one cathode (83) and one anode (82), wherein the cathode (83) and the anode (82) are arranged at intervals, and a gas isolation grid (81) is provided between the cathode (83) and the anode (82), wherein the gas isolation grid (81) is suitable for separating the electrolysis chamber into a cathode chamber having the cathode (83) and an anode chamber having the anode (82), wherein the cathode chamber and the anode chamber are connected; as well as an air intake assembly (7) configured to connect the electrolysis chamber to an external air environment, and adapted to draw air into the electrolysis chamber so that the air and the electrolyte (5) form a hydrogen peroxide solution, and remove at least a portion of microorganisms, dust and harmful gases in the air; Wherein, the air intake assembly (7) comprises: an aerator (73), arranged at the bottom of the electrolysis chamber; an air induction mechanism (74), the air inlet end of the air induction mechanism (74) being in communication with an external air environment and being adapted to supply different air inlet amounts to the cathode chamber and the anode chamber; and The air inlet pipe (71) is arranged between the exhaust end of the air inducing mechanism (74) and the aerator (73).

2. The air purification device according to claim 1, characterized in that: It also includes an electric control component (3) electrically connected to the electrolytic component (8).

3. The air purification device according to claim 2, characterized in that: The electronic control component (3) comprises: A controller (33) adapted to supply power to the cathode (83) and the anode (82); a temperature sensor (32) which is in communication with the controller (33) and is suitable for collecting a temperature signal of the electrolyte (5); and The liquid level sensor (31) is communicatively connected to the controller (33) and is suitable for collecting a liquid level signal of the electrolyte (5).

4. The air purification device according to claim 1, characterized in that: It also comprises a plurality of baffles (4), wherein the plurality of baffles (4) are arranged in a staggered manner on the facing surfaces of the gas isolation grid (81) and the anode (82), so as to form an air passage arranged in an S shape from bottom to top.

5. The air purification device according to claim 1, characterized in that: Also included is a partition plate, the partition plate is suitable for dividing the shell (9) into two cavities stacked up and down; The cavity located at the upper part of the shell (9) is used as the electrolysis chamber, and the air intake assembly (7) is arranged in the cavity located at the lower part of the shell (9).

6. The air purification device according to claim 1, characterized in that: The air intake assembly (7) further comprises a one-way valve (72) arranged on the air intake pipe (71) to limit the backflow of the electrolyte (5) through the aerator (73).

7. The air purification device according to any one of claims 1 to 6, characterized in that: The top of the housing (9) is provided with an exhaust port (12) suitable for exhausting purified air.

8. The air purification device according to claim 7, characterized in that: An exhaust assembly (1) is arranged at intervals on the top of the shell (9), and the exhaust assembly (1) has a plurality of exhaust ports (12); Wherein, the plurality of exhaust ports (12) are arranged in different directions toward the external air environment.

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