Air return type plasma disinfection device for air purification

Abstract

The utility model discloses an air return type plasma disinfection device for air purification, which comprises a shell, a first partition plate is arranged on one side in the shell, a second partition plate is arranged on one side, far away from the first partition plate, in the shell, and plasma discharge devices are arranged on the first partition plate and the second partition plate. A disinfection assembly is arranged on the inner side of the plasma discharge device in the shell, a fan is arranged on the side, away from the plasma discharge device, of the disinfection assembly in the shell, a volute is arranged on the outer side of the fan, a flow guide pipe is arranged on one side of the volute, and a cover plate is arranged on the portion, between the first partition plate and the second partition plate, of the shell. A plurality of air inlets distributed at equal intervals are formed in the cover plate, and an air outlet is formed in the side, away from the cover plate, of the second partition plate of the shell. And through the air return type arrangement, air flow can be circularly disinfected, bacterial cross infection is effectively avoided, and the air purification effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a return-air plasma disinfection device for air purification. Background Technology

[0002] Severe outdoor air pollution has led to excessive levels of indoor air pollutants and particulate matter. Indoor formaldehyde, VOCs, nitrogen oxides, and other pollutants significantly degrade indoor air quality. Bacteria, fungi, yeasts, and other microorganisms attach to these particles, easily causing allergies or respiratory infections. Therefore, air purification equipment is widely used for indoor air purification. Fan coil units heat, cool, dehumidify, and purify the air, ensuring that the air delivered to the room meets people's comfort requirements. However, existing air purifiers are not very effective at purifying the air, leading to a vicious cycle of indoor air pollution and poor indoor air quality. This also increases the risk of cross-infection from airborne pathogens. Therefore, we propose a return-air plasma disinfection device for air purification. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a return-air plasma disinfection device for air purification. This invention solves the problems of existing air purifiers having limited purification effects, leading to vicious cycles of indoor air pollution, poor indoor air quality, and increased risk of cross-infection from airborne pathogens.

[0004] This utility model discloses a return-air plasma disinfection device for air purification, comprising a housing, a first partition on one side of the housing, a second partition on the side of the housing away from the first partition, plasma discharge devices on both the first and second partitions, a disinfection component inside the housing located within the plasma discharge device, a fan on the side of the housing located away from the plasma discharge device, a volute on the outside of the fan, a guide pipe on one side of the volute, the guide pipe extending from the side of the volute away to the side of the second partition away from the fan, a cover plate between the first and second partitions on the housing, a plurality of equidistant air inlets on the cover plate, and an air outlet on the side of the housing located away from the cover plate on the side of the second partition.

[0005] In the above solution, the disinfection component includes an outer frame, and there are three outer frames. The three outer frames are respectively provided with a positive electrode plate, a mica dielectric plate and a negative electrode plate. Each of the four corners of the outer frame is provided with a connection hole.

[0006] In the above scheme, the disinfection component is fixedly connected to the housing by bolts.

[0007] In the above solution, the housing is equipped with a display screen on the side of the cover plate away from the air outlet, and an indicator light is provided on one side of the display screen.

[0008] In the above scheme, the housing is provided with mounting plates at both ends on the side away from the cover plate, and the mounting plates are provided with mounting holes.

[0009] In the above scheme, a power switch is provided on the side of the housing near the air outlet.

[0010] The advantages and beneficial effects of this utility model are as follows: This utility model provides a return-air plasma disinfection device for air purification. A fan drives the airflow, allowing it to enter the housing through the air inlet. As the airflow passes through the disinfection components, an external electric field or a high-frequency induced electric field is formed between the positive and negative electrode plates. The tearing electric field, high-speed high-energy particles, ultraviolet radiation, and active free radicals generated by the plasma discharge device eliminate viruses and bacteria in the air, thereby further purifying the air. The disinfected airflow is then driven through a guide pipe and discharged through the air outlet. This disinfection device has a simple structure, and the return-air design allows for cyclical disinfection of the airflow, effectively avoiding cross-contamination of bacteria and improving the air purification effect. Attached Figure Description

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a first sectional view of the present invention;

[0014] Figure 3 This is a second sectional view of the present invention;

[0015] Figure 4 This is a schematic diagram of the disinfection component structure of this utility model.

[0016] In the diagram: 1. Shell; 2. First partition; 3. Second partition; 4. Plasma discharge device.

[0017] 5. Disinfection component 51, outer frame 52, positive electrode plate 53, mica dielectric plate

[0018] 54. Negative electrode plate; 55. Connecting hole; 6. Fan; 7. Volute.

[0019] 8. Guide pipe; 9. Air outlet; 10. Cover plate; 11. Air inlet.

[0020] 12. Bolts 13. Display screen 14. Indicator lights 15. Mounting plate

[0021] 16. Mounting hole; 17. Power switch. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] like Figure 1-4 As shown, this utility model is a return-air plasma disinfection device for air purification, including a housing 1. A first partition 2 is provided on one side of the housing 1, and a second partition 3 is provided on the side of the housing 1 away from the first partition 2. Both the first partition 2 and the second partition 3 are equipped with plasma discharge devices 4. When the plasma discharge devices 4 are working, they generate a tearing electric field, high-speed high-energy particles, ultraviolet radiation, and active free radicals, thereby eliminating viruses and bacteria in the air. A disinfection component 5 is provided inside the housing 1, located within the plasma discharge device 4. A fan 6 is provided on the side of the housing 1, located between the disinfection component 5 and the plasma discharge device 4. A volute 7 is provided outside the fan 6. The volute 7 has a guide pipe 8 on one side, which extends from the side away from the volute 7 to the side of the second partition 3 away from the fan 6. The housing 1 has a cover plate 10 between the first partition 2 and the second partition 3. The cover plate 10 has multiple equidistant air inlets 11. The housing 1 has an air outlet 9 on the side of the second partition 3 away from the cover plate 10. When the fan 6 is working, the fan 6 drives the airflow, so that the airflow enters the housing 1 through the air inlets 11. When the airflow passes through the disinfection component 5, the disinfection component 5 can disinfect the airflow. After disinfection, the airflow is driven by the guide pipe 8, so that the disinfected airflow can be discharged through the air outlet 9.

[0024] The disinfection component 5 includes three outer frames 51. Each of the three outer frames 51 contains a positive electrode plate 52, a mica dielectric plate 53, and a negative electrode plate 54. Each of the four corners of the outer frame 51 has a connection hole 55. When the positive and negative electrode plates 52 and 54 are in operation, an external electric field or a high-frequency induced electric field is formed between them. This external electric field or high-frequency induced electric field causes a dielectric barrier discharge between the positive electrode plate 52, the mica dielectric plate 53, and the negative electrode plate 54, forming plasma. The plasma, accelerated by the high-frequency induced electric field, collides with electrons in the partially ionized gas, transferring the energy from the electric field to the gas. The elastic collisions between electrons and neutral molecules increase the molecular kinetic energy. The tearing electric field, high-speed high-energy particles, ultraviolet radiation, and active free radicals generated by the plasma discharge device 4 eliminate viruses and bacteria in the air, thereby further purifying the air.

[0025] The disinfection component 5 is fixedly connected to the housing 1 by bolts 12. The bolts 12 are inserted into the connection hole 55. The bolts 12 make it easy to install and disassemble the disinfection component 5.

[0026] The housing 1 is provided with a display screen 13 on the side of the cover plate 10 away from the air outlet 9. An indicator light 14 is provided on one side of the display screen 13. The display screen 13 and the indicator light 14 can display the working status of the housing 1.

[0027] The housing 1 is provided with mounting plates 15 at both ends on the side away from the cover plate 10. The mounting plates 15 are provided with mounting holes 16, through which the disinfection device can be fixedly installed.

[0028] A power switch 17 is provided on the side of the housing 1 near the air outlet 9.

[0029] Specifically, in this invention, when the fan 6 is working, it drives the airflow, causing the airflow to enter the housing 1 through the air inlet 11. When the airflow passes through the disinfection component 5, an external electric field and a high-frequency induced electric field are formed between the positive electrode plate 52 and the negative electrode plate 54. The external electric field or the high-frequency induced electric field causes the air to form a dielectric barrier discharge between the positive electrode plate 52, the mica dielectric plate 53, and the negative electrode plate 54. The airflow discharge forms plasma. The electrons in the partially ionized gas, accelerated by the high-frequency induced electric field, collide with neutral molecules, transferring the energy obtained from the electric field to the gas. The elastic collision between electrons and neutral molecules increases the molecular kinetic energy. The tearing electric field, high-speed high-energy particles, ultraviolet radiation, and active free radicals generated by the plasma discharge device 4 eliminate viruses and bacteria in the air, thereby further purifying the air. The disinfected airflow is driven by the guide pipe 8, allowing the disinfected airflow to be discharged through the air outlet 9.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A return-air plasma sterilization device for air purification, comprising a housing (1), characterized in that, A first partition (2) is provided on one side of the housing (1), and a second partition (3) is provided on the side of the housing (1) away from the first partition (2). Both the first partition (2) and the second partition (3) are equipped with plasma discharge devices (4). A disinfection component (5) is provided inside the housing (1) on the inside of the plasma discharge device (4). A fan (6) is provided on the side of the housing (1) away from the plasma discharge device (4) from the disinfection component (5). A volute (7) is provided on one side of the volute (7), and a guide pipe (8) is provided on one side of the volute (7). The guide pipe (8) extends from the side away from the volute (7) to the side of the second partition (3) away from the fan (6). A cover plate (10) is provided between the first partition (2) and the second partition (3). A plurality of air inlets (11) are provided on the cover plate (10). An air outlet (9) is provided on the side of the second partition (3) away from the cover plate (10).

2. The return-air plasma disinfection device for air purification according to claim 1, characterized in that, The disinfection component (5) includes an outer frame (51), and there are three outer frames (51). The three outer frames (51) are respectively provided with a positive electrode plate (52), a mica dielectric plate (53) and a negative electrode plate (54). Each of the four corners of the outer frame (51) is provided with a connection hole (55).

3. A return-air plasma disinfection device for air purification according to claim 1, characterized in that, The disinfection component (5) is fixedly connected to the housing (1) by bolts (12).

4. A return-air plasma disinfection device for air purification according to claim 1, characterized in that, The housing (1) is provided with a display screen (13) on the side of the cover plate (10) away from the air outlet (9), and an indicator light (14) is provided on the side of the display screen (13).

5. A return-air plasma disinfection device for air purification according to claim 1, characterized in that, The housing (1) has mounting plates (15) at both ends on the side away from the cover plate (10), and the mounting plates (15) have mounting holes (16).

6. A return-air plasma disinfection device for air purification according to claim 1, characterized in that, A power switch (17) is provided on the side of the housing (1) near the air outlet (9).

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