An air purifier

Abstract

An air purifier, including outer casing and control panel and universal wheel arranged at its top and bottom respectively, the inside of outer casing is provided with sterilization channel extending from top to bottom, the top of sterilization channel is provided with air inlet, the bottom is provided with air outlet, the air outlet is provided with air guide device, the inner wall of sterilization channel is provided with sterilization assembly, the inner wall of sterilization channel is also provided with spraying assembly for spraying sterilization liquid, since the utility model discloses the inside of equipment is provided with the sterilization channel extending from top to bottom, the retention path and time of air in equipment are significantly prolonged, after contaminated air is inhaled from the top air inlet, first pass through the ultraviolet light catalytic module of top, accept the direct illumination of ultraviolet lamp and the deep degradation of photocatalytic net, then fully mix and contact in the middle with the micron grade sterilization liquid mist droplet of spraying assembly, realize liquid immersion sterilization, greatly improve sterilization efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of air purifiers, and specifically to an air purifier. Background Technology

[0002] Air pollution is becoming increasingly serious, especially microbial pollutants (such as bacteria, viruses, and fungi) which pose a serious threat to human health. As a result, air purification and sterilization equipment has become an essential device for indoor environments such as homes, hospitals, schools, and offices.

[0003] Currently, the mainstream air sterilization technologies on the market can be mainly divided into the following categories: First, filtration-based purification, which physically intercepts particulate matter through HEPA filters, but cannot effectively kill microorganisms and requires frequent filter replacement, resulting in high maintenance costs; Second, ultraviolet sterilization, which uses UV-C lamps to destroy the DNA / RNA of microorganisms, but requires a long airflow time through the irradiation area, has limited sterilization efficiency in a limited space, and poses safety hazards such as ozone generation and ultraviolet leakage; Third, ozone sterilization, although it has good diffusion, requires strict concentration control, and high concentrations of ozone are harmful to the human body, requiring use in unmanned environments, which has significant limitations; Fourth, technologies such as plasma and photocatalysis, but still face the problem of balancing airflow capacity and sterilization efficiency.

[0004] The aforementioned existing technologies share a common core defect: the airflow path through the disinfection module is short and the time is rushed, resulting in incomplete sterilization effect during a single pass. For pathogens with strong resistance, short-term contact cannot guarantee complete inactivation. In addition, the functional mode is singular and it is difficult to cope with complex and ever-changing microbial contamination environments.

[0005] Therefore, there is an urgent need for a new type of air purification and sterilization device that can significantly extend the interaction time between air and disinfection media, integrate multiple sterilization methods, and is safe and efficient, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an air purifier with a novel structure and high virus killing efficiency.

[0007] The technical solution adopted to solve the above technical problems is:

[0008] An air purifier includes an outer shell and a control panel and casters respectively disposed on its top and bottom. The outer shell has a disinfection channel that extends spirally from top to bottom. The disinfection channel has an air inlet at its top and an air outlet at its bottom. An air-guiding device is disposed at the air outlet. A disinfection component is disposed on the inner wall of the disinfection channel.

[0009] The inner wall of the disinfection channel is also equipped with a spraying assembly for spraying disinfectant.

[0010] A liquid storage tank is provided at the bottom of the outer casing. The liquid storage tank is connected to the spraying assembly through a pipeline to form a liquid circulation system. A return port is provided at the bottom of the disinfection channel to recover the sprayed disinfectant liquid back to the liquid storage tank.

[0011] As a preferred embodiment of this invention, the disinfection component includes an ultraviolet photocatalytic module disposed on the inner wall of the top of the disinfection channel, and the ultraviolet photocatalytic module includes an ultraviolet lamp and a photocatalytic mesh.

[0012] As a preferred embodiment of the present invention, the disinfection component further includes the spray component disposed on the inner wall of the middle part of the disinfection channel. The spray component includes a plurality of ultrasonic atomizing nozzles, which are disposed on the inner wall of the middle part of the disinfection channel.

[0013] As a preferred embodiment of the present invention, the disinfection component further includes a gas-liquid separation module disposed at the bottom of the disinfection channel and in front of the air-expelling device, wherein the gas-liquid separation module is a wire mesh demister.

[0014] As a preferred embodiment of the present invention, the liquid circulation includes an infusion pipe, a liquid pump, and a filter. The liquid pump and the filter are installed on the pipeline connecting the liquid storage tank and the spray assembly. Multiple ultrasonic atomizing nozzles are connected to the infusion pipe, and the return port is connected to the liquid storage tank through a return pipe.

[0015] As a preferred embodiment of this utility model, the outer shell is cylindrical, and the disinfection channel is a double-helix or single-helix structure that fits against the inner wall of the outer shell.

[0016] As a preferred embodiment of this utility model, the air-expelling device is a centrifugal fan, with its air inlet facing the end of the disinfection channel and its air outlet connected to the air outlet.

[0017] As a preferred embodiment of this utility model, a liquid level sensor is provided inside the liquid storage tank, and a liquid filling port and a liquid draining port that communicate with the liquid storage tank are provided on the outer shell.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention effectively solves the core problems of traditional air purifiers, namely short airflow time and incomplete sterilization in a single pass, by employing a spirally extending sterilization channel and multiple sterilization modules working in synergy. Specifically, the device features a top-to-bottom spirally extending sterilization channel, significantly extending the residence path and time of air within the device. After being drawn in through the top air inlet, polluted air first passes through the top ultraviolet photocatalytic module, receiving direct irradiation from the ultraviolet lamp and deep degradation by the photocatalytic mesh. Subsequently, it is fully mixed and contacted with the micron-sized sterilization liquid droplets sprayed by the spray assembly in the middle, achieving liquid immersion sterilization. Finally, the air is discharged after the droplets are removed by the gas-liquid separation module at the bottom. This multi-stage, sequential sterilization process of "photolysis first, then spraying" ensures maximum contact time and area between air and the sterilization medium, effectively inactivating various microorganisms, including highly resistant pathogens, achieving extremely high sterilization efficiency in a single pass.

[0020] This invention achieves high efficiency, energy saving, convenient maintenance, and flexible deployment of equipment by constructing a sterilization liquid circulation system and an integrated mobile design. The sterilization liquid used for spraying is supplied by the bottom storage tank, and is delivered to the ultrasonic atomizing nozzle through a liquid pump and filter. The waste liquid after spraying is recycled back to the storage tank through the bottom return port and return pipe, forming a complete liquid circulation system. This greatly improves the utilization rate of the sterilization liquid and reduces consumable costs. The liquid level sensor in the storage tank can monitor the liquid level in real time and prompt the user through the control panel to add liquid through the filling port or change liquid through the drain port, making maintenance simple.

[0021] In addition, the compact cylindrical shell and the universal wheels at the bottom allow this powerful device to be easily moved to any area that needs disinfection, truly achieving a balance between efficient sterilization and ease of use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 4 This is a side view of the structure of this utility model.

[0026] In the diagram: 1. Outer casing; 11. Control panel; 12. Casters; 2. Sterilization channel; 3. Air inlet; 4. Air outlet; 5. Exhaust fan (centrifugal fan); 6. Spray assembly; 61. Infusion pipe; 62. Liquid pump; 63. Filter; 64. Ultrasonic atomizing nozzle; 7. Storage tank; 71. Liquid level sensor; 72. Inlet; 73. Outlet; 8. Return port; 81. Return pipe; 9. Ultraviolet photocatalytic module; 91. Ultraviolet lamp; 92. Photocatalytic mesh; 10. Gas-liquid separation module. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0032] Example 1

[0033] exist Figures 1-4 In this invention, a technical solution is provided: an air purifier, including a cylindrical outer shell 1 with an internal cavity, and a sterilization channel 2 with a spiral structure that extends from top to bottom along the inner wall of the outer shell 1, with its top leading to the air inlet 3 and its bottom leading to the air outlet 4.

[0034] Meanwhile, an ultraviolet photocatalytic module 9 is installed on the top inner wall of the disinfection channel 2. This module consists of a UVC ultraviolet lamp tube 91 with a wavelength of 254nm and a photocatalytic mesh 92 coated with nano-titanium dioxide.

[0035] By circling multiple spray components 6 on the inner wall of the middle part of the disinfection channel 2, in this example, an ultrasonic atomizing nozzle 64 is used, which sprays droplets with a diameter of less than 10μm, thereby expanding the spray range and improving the disinfection effect.

[0036] Secondly, a liquid storage tank 7 is provided at the bottom of the outer shell 1, which is filled with a compound sterilization solution. The liquid pump 62 draws the liquid from the liquid storage tank 7 through the infusion pipe 61. After being filtered by the filter 63, the liquid is then transmitted to multiple ultrasonic atomizing nozzles 64 through the infusion pipe 61. Since the ultrasonic atomizing nozzles 64 are located on the inner wall of the middle part of the sterilization channel 2, they can spray sterilize the gas after ultraviolet disinfection. This allows the liquid to be delivered to the atomizing nozzles in the middle for spraying. The liquid that falls after spraying and the droplets separated in the air are returned to the liquid storage tank 7 through the return port 8 and the return pipe 81 at the bottom, forming a cycle.

[0037] A gas-liquid separation module 10, which is a stainless steel wire mesh demister in this example, is installed at the bottom of the disinfection channel 2 and in front of the air intake device 5 to separate liquid droplets entrained in the air.

[0038] The exhaust fan 5 uses a high-power centrifugal fan, which is installed at the bottom center of the channel. Its air intake is directly opposite the end of the channel, and its exhaust port is connected to the air outlet 4. When working, the fan starts, and the outside air is drawn in from the top air intake 3. It moves spirally from top to bottom in the spiral channel 2, and passes through ultraviolet irradiation, chemical mist spraying and wetting and gas-liquid separation. Finally, the dry and clean air is discharged from the air outlet 4 by the fan.

[0039] The liquid storage tank 7 is equipped with a liquid level sensor 71, which monitors the liquid level and provides an alarm when the liquid level is low. Users can add disinfectant or clean water through the liquid inlet 72 and replace waste liquid through the liquid outlet 73. Furthermore, the control panel 11 can control the equipment output power and other existing technical functions. The casters 12 facilitate the transfer of the equipment.

[0040] The air purifier described in this utility model operates on the following principle: After the device is powered on, the user sets the working mode via the control panel 11 on top. The air intake device 5 (centrifugal fan) starts working, creating negative pressure inside the device. Polluted air is drawn into the outer casing 1 through the air inlet 3 on top. The air then enters the disinfection channel 2, which extends spirally from top to bottom. Its spiral structure significantly prolongs the air's residence time. The air first flows through the ultraviolet photocatalytic module 9 at the top of the disinfection channel 2, receiving direct irradiation from the ultraviolet lamp 91 and catalytic degradation from the photocatalytic mesh 92, thus performing the first stage of inactivation of microorganisms. Subsequently, the air continues to descend to the middle of the channel, where the spray assembly 6 (ultrasonic atomizing nozzle) is activated, and liquid... Pump 62 pumps the disinfectant solution in the storage tank 7 through the infusion pipe 61, and after being filtered by the filter 63, it is atomized into micron-sized particles by the atomizing nozzle and sprayed out, so that the air and disinfectant droplets are fully mixed and contacted to achieve the second chemical disinfection. The treated humid air continues to descend along the spiral channel to the bottom, and first passes through the gas-liquid separation module 10 (wire mesh demister) to separate and remove the liquid droplets entrained in the air. The separated liquid flows back to the storage tank 7 through the return port 8 at the bottom and the return pipe 81 to realize the recycling of the disinfectant solution. Finally, the air that has been deeply purified and dried is discharged from the air outlet 4 by the exhaust fan 5. The liquid level sensor 71 in the storage tank 7 monitors the liquid level in real time, and the casters 12 allow the equipment to be moved flexibly to the required space.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An air purifier, comprising a housing (1) and a control panel (11) and casters (12) respectively disposed on its top and bottom, characterized in that: The outer shell (1) is provided with a disinfection channel (2) that extends spirally from top to bottom. The disinfection channel (2) has an air inlet (3) at the top and an air outlet (4) at the bottom. An air-guiding device (5) is provided at the air outlet (4). A disinfection component is provided on the inner wall of the disinfection channel (2). The inner wall of the disinfection channel (2) is also provided with a spraying assembly (6) for spraying disinfectant liquid; The bottom of the outer shell (1) is provided with a liquid storage tank (7), which is connected to the spray assembly (6) through a pipeline to form a liquid circulation. The bottom of the disinfection channel (2) is provided with a return port (8) for recycling the disinfectant solution after spraying back to the liquid storage tank (7).

2. The air purifier according to claim 1, characterized in that: The disinfection component includes an ultraviolet photocatalytic module (9) disposed on the inner wall of the top of the disinfection channel (2), and the ultraviolet photocatalytic module (9) includes an ultraviolet lamp (91) and a photocatalytic mesh (92).

3. The air purifier according to claim 1, characterized in that: The disinfection assembly also includes the spray assembly (6) disposed on the inner wall of the middle part of the disinfection channel (2). The spray assembly (6) includes a plurality of ultrasonic atomizing nozzles (64), which are disposed on the inner wall of the middle part of the disinfection channel (2).

4. The air purifier according to claim 1, characterized in that: The disinfection component also includes a gas-liquid separation module (10) located at the bottom of the disinfection channel (2) and in front of the air-drawing device (5), wherein the gas-liquid separation module (10) is a wire mesh demister.

5. The air purifier according to claim 3, characterized in that: The liquid circulation system includes an infusion pipe (61), a liquid pump (62), and a filter (63). The liquid pump (62) and the filter (63) are installed on the pipeline connecting the storage tank (7) and the spray assembly (6). Multiple ultrasonic atomizing nozzles (64) are connected to the infusion pipe (61). The return port (8) is connected to the storage tank (7) through the return pipe (81).

6. The air purifier according to claim 1, characterized in that: The outer shell (1) is cylindrical, and the disinfection channel (2) is a double helix or single helix structure that fits against the inner wall of the outer shell (1).

7. The air purifier according to claim 1, characterized in that: The air intake device (5) is a centrifugal fan, with its air inlet facing the end of the disinfection channel (2) and its air outlet connected to the air outlet (4).

8. The air purifier according to any one of claims 1-7, characterized in that: The liquid storage tank (7) is equipped with a liquid level sensor (71), and the outer shell (1) is equipped with a liquid filling port (72) and a liquid draining port (73) that are connected to the liquid storage tank (7).

Images