Air purification device for large spaces

Abstract

This application discloses an air purification device for large spaces, including a main body, a filter, a circulating fan, a catalytic system, several plasma generating devices, several ultraviolet disinfection devices, an air quality detection device, and a control device; it can effectively remove various particulate matter in the air and adsorb and decompose various harmful gases, and has a sterilization and disinfection function, which can effectively reduce microorganisms such as bacteria, viruses, and fungi in the air; by using the above device, the risk of respiratory diseases can be reduced and the comfort of the indoor environment can be improved.

Description

Technical Field

[0001] This application relates to an air purification device for large spaces, belonging to the field of air purification technology. Background Technology

[0002] With the acceleration of industrialization and urbanization, air quality has gradually become a global focus. Outdoor air pollutants, such as sulfur dioxide (SO2) and nitrogen oxides (NOx) from industrial emissions, are increasingly becoming a major concern. x The levels of particulate matter (including PM2.5 and PM10) and volatile organic compounds (VOCs), such as benzene, toluene, and formaldehyde, are constantly increasing. These pollutants can enter indoor spaces through ventilation systems or gaps in doors and windows, posing a threat to human health. Furthermore, traditional air purification equipment has a relatively limited function, only removing dust and other particulate matter from the air. To more comprehensively purify the air and meet people's needs for a healthy and comfortable indoor environment, the integration of multiple purification technologies has become an inevitable trend. Utility Model Content

[0003] To address the problems existing in the prior art, according to one aspect of this application, an air purification device is provided that can efficiently eliminate bacteria and viruses in the air, specifically:

[0004] An air purification device for large spaces, comprising a main body of the device;

[0005] A filter screen is fixed on one side of the main body of the device, and a circulating fan is fixed at the corresponding position of the filter screen.

[0006] The main body of the device is also equipped with a catalytic system, several plasma generating devices, and several ultraviolet disinfection devices.

[0007] The main body of the device is also equipped with an air quality detection device and a control device.

[0008] The air purification device is installed inside the air inlet of the space ventilation system or in a closed space.

[0009] The filter is used to filter particulate matter, adsorb harmful gases, and reduce the spread of microorganisms during air circulation.

[0010] The circulating fan is used to circulate air;

[0011] The plasma generator uses a strong electric field to form plasma, which then kills bacteria and viruses in the air through its internal active substances.

[0012] The catalytic system is used to catalyze the oxidation / reduction of harmful gases and reduce the activation energy of chemical reactions. It can be installed inside the main body of the device, or at the front or rear end of the main body of the device.

[0013] The ultraviolet disinfection device is used to disinfect microorganisms in the air with ultraviolet light. It uses ultraviolet light with a wavelength of 222nm, which can kill bacteria efficiently and is less harmful to the human body.

[0014] The air detection device is used to detect the air quality flowing into the air purifier, and can monitor and quantify pollutants, assess and classify air quality.

[0015] The control device can adjust airflow, plasma concentration, and the number and duration of ultraviolet disinfection devices based on monitoring data from the air quality detection device, which can further reduce energy consumption and costs.

[0016] Optionally, the plasma generating device includes a correspondingly arranged positive high-voltage electrode and a negative high-voltage electrode, and the plasma generating device is adjusted to regulate the plasma concentration.

[0017] By applying positive and negative high-voltage direct current to the two electrodes respectively, positive and negative corona discharge is achieved in synergy. On the one hand, the positive ions generated by positive corona discharge and the negative ions generated by negative corona discharge can act on particulate matter simultaneously, increasing the charge of the particulate matter. The charged particulate matter is easier to collect and remove under the influence of the electric field. On the other hand, the active substances (such as ozone and hydroxyl radicals) generated by positive corona discharge and the high-energy electrons generated by negative corona discharge can act together on harmful gas molecules.

[0018] This synergistic effect enables more thorough decomposition of harmful gases, improving purification efficiency compared to individual discharge methods. Furthermore, the active substances and ultraviolet light generated by positive corona discharge can damage the cell walls, cell membranes, and nucleic acids of microorganisms, while the negative ions generated by negative corona discharge can charge the surface of microorganisms, promoting contact and reaction between active substances and microorganisms.

[0019] Optionally, the nanoarray of discharge electrodes in the plasma generator is selected from one of nanosheets, nanowires, or nanorods.

[0020] Optionally, the substrate of the discharge electrode is selected from any one of glass electrode, Ti electrode, Co electrode, Cu electrode, and Fe electrode;

[0021] The material of the discharge electrode can be any one of NiO, C, TiO2, Cu, WO3, or Ag.

[0022] Optionally, the catalytic system is fixed to one end of the device body away from the filter screen, and several plasma generating devices and several ultraviolet sterilization devices are fixed between the catalytic system and the circulating fan.

[0023] Optionally, the catalyst in the catalytic system is a non-precious metal catalyst.

[0024] Optionally, the catalyst is selected from at least one of metal oxides of Cu, Mn, and Fe or perovskite-type catalysts.

[0025] Optionally, the filter screen is clipped onto the main body of the device and a spare filter screen is provided, which is easy to remove and clean. When the filter screen in the device is replaced for cleaning and drying, the spare filter screen can be installed in the device.

[0026] Optionally, both the filter screen and the backup filter screen are made of at least one of the following: metal wire mesh, synthetic fiber, glass fiber, and electrostatically electret treated fiber material.

[0027] Optionally, the control device includes a control panel fixed to the surface of the device body.

[0028] Optionally, a plasma generator and an ultraviolet disinfection device are respectively provided on each of the four sides of the main body of the device.

[0029] Work process:

[0030] First, the air is initially filtered by adsorbing particulate matter (such as dust, pollen, dander, etc.) and microorganisms (bacteria, viruses, fungi). Then, the active substances generated in the plasma generator decompose harmful gases such as formaldehyde, benzene compounds, sulfur oxides, and nitrogen oxides, and kill microorganisms. Finally, the catalyst in the catalytic system further eliminates the pollutants. The ultraviolet disinfection device works throughout the entire process of air flow from inflow to outflow, achieving further purification.

[0031] Using the air purification device provided in this application, various particulate matter in the air can be effectively removed, as well as various harmful gases can be adsorbed and decomposed. It also has a sterilization and disinfection function, which can effectively reduce microorganisms such as bacteria, viruses and fungi in the air, making it safer.

[0032] The beneficial effects that this application can produce include:

[0033] The air purification device for large spaces provided in this application can effectively remove various particulate matter from the air and adsorb and decompose a variety of harmful gases. It also has a sterilization and disinfection function, which can effectively reduce microorganisms such as bacteria, viruses and fungi in the air. By using the above device, the risk of respiratory diseases can be reduced and the comfort of the indoor environment can be improved. Attached Figure Description

[0034] Figure 1This is a three-dimensional structural diagram of an air purification device provided in one embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the internal structure of an air purification device provided in one embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the plasma generator in an air purification device provided in one embodiment of this application.

[0037] List of components and reference numerals:

[0038] 1. Filter screen; 2. Circulating fan; 3. Plasma generator; 4. Catalytic system; 5. Ultraviolet disinfection device; 6. Air quality detection device; 7. Positive high voltage electrode; 8. Negative high voltage electrode; 9. Control panel. Detailed Implementation

[0039] The present application is described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0040] Example 1

[0041] like Figures 1-3 As shown, according to one embodiment of this application, an air purification device for large spaces is provided, including a device body;

[0042] A filter screen 1 is fixed on one side of the main body of the device, and a circulating fan 2 is also fixed at the corresponding position of the filter screen 1.

[0043] The main body of the device is also equipped with a catalytic system 4, several plasma generating devices 3 and several ultraviolet disinfection devices 5;

[0044] The main body of the device is also equipped with an air quality detection device 6 and a control device.

[0045] The air purification device is installed inside the air inlet of the space ventilation system or in a closed space.

[0046] The filter 1 is used to filter particulate matter, adsorb harmful gases, and reduce the spread of microorganisms during air circulation.

[0047] The circulating fan 2 is used to circulate air;

[0048] The plasma generator 3 uses a strong electric field to generate plasma, and the active substances inside it kill bacteria and viruses in the air.

[0049] The catalytic system 4 is used to catalyze the oxidation / reduction of harmful gases and reduce the activation energy of chemical reactions. It can be installed inside the main body of the device, or at the front or rear end of the main body of the device.

[0050] The ultraviolet disinfection device 5 is used to disinfect microorganisms in the air with ultraviolet light. It uses ultraviolet light with a wavelength of 222nm, which can effectively kill bacteria and is less harmful to the human body.

[0051] The air detection device is used to detect the air quality flowing into the air purifier, and can monitor and quantify pollutants, assess and classify air quality.

[0052] The control device can adjust the airflow, plasma concentration, and the number and duration of operation of the ultraviolet disinfection device 5 based on the monitoring data in the air quality detection device 6, which can further reduce energy consumption and cost.

[0053] The plasma generating device 3 includes a positive high-voltage electrode 7 and a negative high-voltage electrode 8, respectively, and the plasma generating device 3 is adjusted to regulate the plasma concentration.

[0054] By applying positive and negative high-voltage direct current to the two electrodes respectively, positive and negative corona discharge is achieved in synergy. On the one hand, the positive ions generated by positive corona discharge and the negative ions generated by negative corona discharge can act on particulate matter simultaneously, increasing the charge of the particulate matter. The charged particulate matter is easier to collect and remove under the influence of the electric field. On the other hand, the active substances (such as ozone and hydroxyl radicals) generated by positive corona discharge and the high-energy electrons generated by negative corona discharge can act together on harmful gas molecules.

[0055] This synergistic effect enables more thorough decomposition of harmful gases, improving purification efficiency compared to individual discharge methods. Furthermore, the active substances and ultraviolet light generated by positive corona discharge can damage the cell walls, cell membranes, and nucleic acids of microorganisms, while the negative ions generated by negative corona discharge can charge the surface of microorganisms, promoting contact and reaction between active substances and microorganisms.

[0056] In this embodiment, the nanoarray of the discharge electrodes in the plasma generator 3 is made of nanosheets.

[0057] The substrate for the discharge electrode is selected as a glass electrode;

[0058] The discharge electrode is made of NiO.

[0059] The catalytic system 4 is fixed on the main body of the device at one end away from the filter screen 1. Several plasma generating devices 3 and several ultraviolet disinfection devices 5 are fixed between the catalytic system 4 and the circulating fan 2.

[0060] In this embodiment, the catalyst is a perovskite-type catalyst.

[0061] The filter screen 1 is snapped onto the main body of the device, and a spare filter screen 1 is provided, which is easy to remove and clean. When the filter screen 1 in the device is replaced for cleaning and drying, the spare filter screen 1 can be replaced and installed in the device.

[0062] Both the filter screen 1 and the spare filter screen 1 are made of fiber material that has undergone electrostatic electret treatment.

[0063] The control device includes a control panel 9 fixed to the surface of the main body of the device.

[0064] The main body of the device is equipped with a plasma generator 3 and an ultraviolet disinfection device 5 on each of its four sides.

[0065] Work process:

[0066] First, the filter 1 adsorbs particulate matter (such as dust, pollen, dander, etc.) and microorganisms (bacteria, viruses, fungi) in the air, performing preliminary filtration. Then, the active substances generated in the plasma generator 3 decompose harmful gases such as formaldehyde, benzene compounds, sulfur oxides, and nitrogen oxides, and kill microorganisms. Finally, the catalyst in the catalytic system 4 further eliminates the above pollutants. In addition, the ultraviolet disinfection device 5 works throughout the process of air flowing in and out, achieving further purification.

[0067] Using the air purification device provided in this application, various particulate matter in the air can be effectively removed, as well as various harmful gases can be adsorbed and decomposed. It also has a sterilization and disinfection function, which can effectively reduce microorganisms such as bacteria, viruses and fungi in the air, making it safer.

[0068] The above description is only a part of the embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and all fall within the scope of the technical solution.

Claims

1. An air purification device for large spaces, characterized in that, Including the main body of the device; A filter screen is fixed to one end of the main body of the device, and a circulating fan is fixed to the corresponding position of the filter screen. The main body of the device is also equipped with a catalytic system, several plasma generating devices, and several ultraviolet disinfection devices. The main body of the device is also equipped with an air quality detection device and a control device. The plasma generator includes a corresponding positive high-voltage electrode and a negative high-voltage electrode, and the plasma generator is adjusted to regulate the plasma concentration. The nanoarray of discharge electrodes in the plasma generator is selected from one of nanosheets, nanowires, or nanorods.

2. The air purification device for large spaces according to claim 1, characterized in that, The catalytic system is fixed on the main body of the device at one end away from the filter screen, and several plasma generating devices and several ultraviolet disinfection devices are fixed between the catalytic system and the circulating fan.

3. An air purification device for large spaces according to claim 1, characterized in that, The filter screen is attached to the main body of the device, and a spare filter screen is provided.

4. An air purification device for large spaces according to claim 1, characterized in that, The control device includes a control panel fixed to the surface of the main body of the device.

5. An air purification device for large spaces according to claim 1, characterized in that, The main body of the device is equipped with a plasma generator and an ultraviolet disinfection device on each of its four sides.

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