Indoor air pollutant filtering and air supplying device

Abstract

The utility model discloses an indoor air pollutant filtering air supply device, which is characterized in that an air mixing chamber is used as a mixing space of fresh air and indoor return air and is used for promoting the circulation and renewal of air and ensuring that the fresh air can be uniformly distributed, and the concentration of indoor pollutants can be diluted and the air quality can be improved by introducing the fresh air; the first air valve adjusts and controls the fresh air introduction amount through the opening degree, external air can normally enter the device by opening the first air valve, the second air valve controls the indoor return air circulation amount, when rapid purification is needed, the second air valve is opened to increase the indoor air circulation filtering frequency, and when fresh air needs to be introduced, the second air valve is opened to increase the indoor air circulation filtering frequency. The second air valve is matched with the first air valve to adjust the air mixing proportion and balance ventilation and energy-saving requirements, the air mixing component is installed on the device, outdoor air can be introduced and mixed with indoor air, the pollutant concentration is diluted, oxygen can be supplemented, the carbon dioxide concentration can be reduced, and therefore the normal breathing requirement of the human body is met.

Description

Technical Field

[0001] This utility model relates to the field of indoor air pollution control technology, specifically to an indoor air pollutant filtration and air supply device. Background Technology

[0002] An indoor air pollutant filtration and air supply device offers several significant advantages. Indoor air pollution control technology refers to a series of techniques used to reduce or eliminate harmful substances in indoor air. These pollutants may include volatile organic compounds, particulate matter, dust, etc. With the improvement of people's living standards and increased health awareness, indoor air quality is receiving increasing attention. By removing or reducing pollutants in indoor air, air quality can be improved, adverse effects on the health of residents can be reduced, and a healthy, safe, and comfortable living and working environment can be provided.

[0003] For example, patent CN210951621U discloses an indoor air pollutant filtering and air supply device, specifically relating to the field of indoor air purification technology. The device includes a housing with grooves on both sides of its inner cavity. These grooves include a first groove and a second groove. A slot is provided on the inner wall of the first groove. A filter plate is installed within the housing, and a handle is fixedly attached to the top of the filter plate. The two sides of the filter plate respectively match the corresponding ends of the first groove. Locking blocks are fixedly attached to both ends of the filter plate's sides. This invention achieves multiple filtrations of air by using multiple filter plates, thus purifying the air. Simultaneously, the inclusion of a water storage pipe and a vortex plate removes smaller impurities from the air and increases humidity, thereby increasing indoor humidity, comfort, and the practicality of the device.

[0004] However, the device lacks a mixing component, preventing it from introducing outdoor air to mix with indoor air, diluting pollutant concentrations, and from replenishing oxygen to reduce carbon dioxide concentrations, thus failing to meet the normal respiratory needs of the human body. Utility Model Content

[0005] The purpose of this invention is to provide an indoor air pollutant filtration and air supply device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an indoor air pollutant filtration and air supply device, including a device housing, the lower end of the device housing containing a mixing chamber, a first air valve fixedly installed on the rear side of the lower surface of the device housing, a first pipe fixedly installed on the lower surface of the first air valve, a second air valve fixedly installed on the front side of the lower surface of the device housing, a second pipe fixedly installed on the lower surface of the second air valve, air valve actuators fixedly installed on the outer surfaces of the first air valve and the second air valve, and protective nets fixedly installed inside the first pipe and the second pipe.

[0007] According to the above technical solution, a flow guide block is fixedly installed in the middle of the inner shell of the device, and a positioning groove is fixedly installed on the upper surface of the flow guide block.

[0008] According to the above technical solution, an inspection door is hinged to the outer surface of the device housing, and a filter screen frame is fitted inside the inspection door.

[0009] According to the above technical solution, multiple HEPA filters are fixedly installed at the lower end of the filter frame, and multiple activated carbon filters are fixedly installed at the upper end of the filter frame.

[0010] According to the above technical solution, a centrifugal fan is fixedly installed inside the upper part of the device housing, and a third pipe is fixedly installed on the upper surface of the device housing.

[0011] According to the above technical solution, a control box is fixedly installed on the front outer surface of the device housing.

[0012] According to the above technical solution, a power distribution box is fixedly installed on the front outer surface of the device housing.

[0013] According to the above technical solution, a mounting base is fixedly installed on the rear outer surface of the device housing, and multiple bolts are installed on the internal threads of the mounting base.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: the mixing chamber, as a mixing space for fresh air and indoor return air, is used to promote air circulation and renewal, ensure that fresh air can be evenly distributed, and dilute the concentration of indoor pollutants by introducing fresh air, thereby improving air quality. The first air valve controls the amount of fresh air introduced by adjusting the opening degree. Opening the first air valve allows outside air to enter the device normally. The second air valve controls the amount of indoor return air circulation. When rapid purification is needed, the second air valve is opened wider to increase the frequency of indoor air circulation and filtration. When fresh air needs to be introduced, the second air valve works with the first air valve to adjust the mixing ratio, balancing ventilation and energy-saving needs. By installing the mixing component in this device, outdoor air can be introduced and mixed with indoor air to dilute the concentration of pollutants. It can also supplement oxygen and reduce the concentration of carbon dioxide, thereby maintaining the normal respiratory needs of the human body. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the air valve assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the filter component of this utility model.

[0020] The diagram shows the following markings: 1. Device casing; 2. Mixing chamber; 3. First air valve; 4. First pipeline; 5. Second air valve; 6. Second pipeline; 7. Air valve actuator; 8. Protective net; 9. Guide block; 10. Positioning groove; 11. Inspection door; 12. Filter screen frame; 13. HEPA filter; 14. Activated carbon filter; 15. Centrifugal fan; 16. Third pipeline; 17. Control box; 18. Distribution box; 19. Mounting base; 20. Bolt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-2 An indoor air pollutant filtration and air supply device includes a housing 1. The lower end of the housing 1 contains a mixing chamber 2. A first air valve 3 is fixedly installed on the rear side of the lower surface of the housing 1. A first duct 4 is fixedly installed on the lower surface of the first air valve 3. A second air valve 5 is fixedly installed on the front side of the lower surface of the housing 1. A second duct 6 is fixedly installed on the lower surface of the second air valve 5. Air valve actuators 7 are fixedly installed on the outer surfaces of the first air valve 3 and the second air valve 5. Protective nets 8 are fixedly installed inside the first duct 4 and the second duct 6. The housing 1 serves as an overall frame, providing physical protection for its internal components and ensuring smooth airflow and mixing. Room 2 serves as a mixing space for fresh air and indoor return air, promoting air circulation and renewal, ensuring even distribution of fresh air, and diluting indoor pollutant concentrations by introducing fresh air to improve air quality. Furthermore, the mixed air replenishes oxygen and reduces carbon dioxide concentration, maintaining normal human respiratory needs. It employs a combination of a first air valve 3 and a first duct 4, which together act as a channel and barrier for outdoor air entering the device. The first air valve 3 controls the amount of fresh air introduced by adjusting its opening degree. Opening the first air valve 3 allows outside air to enter the device normally, while closing it prevents backflow of outdoor air. To prevent unfiltered air from directly entering the room, and to prevent air inside the mixing chamber 2 from flowing back to the outside through the first duct 4, ensuring unidirectional airflow, the first duct 4 directs fresh outdoor air into the mixing chamber, avoiding interference from indoor airflow at the fresh air inlet. A combination of a second air valve 5 and a second duct 6 is used. The second air valve 5 controls the indoor return air circulation volume. When rapid purification is needed, the second air valve 5 is opened wider to increase the indoor air circulation and filtration frequency. When fresh air needs to be introduced, the second air valve 5 works with the first air valve 3 to adjust the mixing ratio, balancing ventilation and energy-saving requirements. The second duct 6 introduces indoor air into the mixing chamber 2 inside the outer casing 1 of the device as close as possible. In this system, the return air path is shortened, reducing airflow resistance. The damper actuator 7 contains a motor and is electrically connected to other electrical components in the device. The damper actuator 7 adjusts the opening of the first damper 3 or the second damper 5 by receiving signals from the electrical components, without manual operation. The protective net 8 intercepts large particulate impurities in the fresh and return air, preventing impurities from entering the interior of the device housing 1 and subsequent filter components. By installing a mixing component in this device, outdoor air can be introduced and mixed with indoor air to dilute the concentration of pollutants. It can also supplement oxygen and reduce the concentration of carbon dioxide, thereby maintaining the normal respiratory needs of the human body.

[0023] Please see Figure 3Inside the outer casing 1, a guide block 9 is fixedly installed in the middle. A positioning groove 10 is fixedly installed on the upper surface of the guide block 9. The guide block 9 changes the airflow direction by its own inclined surface, so as to avoid the formation of vortices or local high-speed areas in the mixed air chamber. This ensures that the airflow passes through the filter assembly smoothly and evenly. The shape of the positioning groove 10 matches the edge of the filter assembly, ensuring that the filter assembly will not be displaced during installation. This prevents airflow from leaking through gaps due to shaking or misalignment, which would affect the purification effect.

[0024] Please see Figure 1 , 3 With 4, an inspection door 11 is hinged to the outer surface of the device housing 1. A filter frame 12 is fitted inside the inspection door 11. Opening the inspection door 11 provides conditions for personnel to install or remove the filter assembly. The filter frame 12 serves as the installation frame for the filter assembly. Its outer surface can match the edge of the positioning groove 10, allowing the filter assembly to be installed inside the device housing 1, thus providing conditions for the filter element to filter the air.

[0025] Please see Figure 4 Multiple HEPA filters 13 are fixedly installed at the lower end of the filter frame 12, and multiple activated carbon filters 14 are fixedly installed at the upper end of the filter frame 12. The HEPA filters 13 adopt a two-layer design. The first layer and the second layer of the HEPA filters 13 adopt coarse HEPA and high-efficiency HEPA respectively. The coarse HEPA of the first layer can intercept larger particles, and the high-efficiency HEPA of the second layer can capture smaller particles. The two layers of filters form a gradient filtration. Large particles are intercepted by the first layer first, reducing the load on the second layer and making the lifespan of the two layers of filters more balanced, avoiding premature failure of a single filter. The activated carbon filters 14 also adopt a two-layer design. The first layer of activated carbon filters 14 is used to quickly adsorb high-concentration pollutants, and the second layer of activated carbon filters 14 can deeply purify residual low-concentration odors and volatile substances. The two-layer design can increase the contact area between air and itself and the adsorption time, thereby improving the air filtration effect.

[0026] Please see Figure 2 A centrifugal fan 15 is fixedly installed inside the upper part of the device housing 1, and a third duct 16 is fixedly installed on the upper surface of the device housing 1. The centrifugal fan 15 generates centrifugal force through the high-speed rotation of the impeller, which drives the indoor return air and outdoor fresh air to circulate in the device, ensuring that the air passes through mixing, filtration and air supply in sequence to achieve continuous air purification and replacement. The third duct 16 serves as the outlet for the filtered clean air, delivering the air treated by the HEPA filter 13 and the activated carbon filter 14 to the designated indoor area.

[0027] Please see Figure 1A control box 17 is fixedly installed on the front outer surface of the device housing 1. The control box 17 is electrically connected to the electrical components inside the device. The control box 17 contains a microprocessor, a display screen, buttons and other related components, which allows the staff to view and control the status and parameters of the device.

[0028] Please see Figure 1 A distribution box 18 is fixedly installed on the front outer surface of the device housing 1. The distribution box 18 is electrically connected to the electrical components inside the device. As the main power input of the equipment, the distribution box 18 distributes the external mains power to the relevant electrical components inside the device to ensure stable power supply to each component.

[0029] Please see Figure 1 A mounting base 19 is fixedly installed on the rear outer surface of the device housing 1. Multiple bolts 20 are installed on the internal threads of the mounting base 19. The mounting base 19 holds the device against the wall in a designated position to prevent the device from falling off or shifting due to vibration during operation. The bolts 20 tightly connect the mounting base 19 to the fixed surface through thread engagement, providing reliable tensile and shear resistance to ensure that the device does not loosen during long-term operation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An indoor air pollutant filtration and air supply device, comprising a device housing (1), characterized in that: The lower end of the device housing (1) contains a mixing chamber (2). A first air valve (3) is fixedly installed on the rear side of the lower surface of the device housing (1). A first pipe (4) is fixedly installed on the lower surface of the first air valve (3). A second air valve (5) is fixedly installed on the front side of the lower surface of the device housing (1). A second pipe (6) is fixedly installed on the lower surface of the second air valve (5). Air valve actuators (7) are fixedly installed on the outer surfaces of the first air valve (3) and the second air valve (5). Protective nets (8) are fixedly installed inside the first pipe (4) and the second pipe (6).

2. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: A flow guide block (9) is fixedly installed in the middle of the inner shell (1) of the device, and a positioning groove (10) is fixedly installed on the upper surface of the flow guide block (9).

3. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: The outer surface of the device housing (1) is hinged to an inspection door (11), and a filter screen frame (12) is fitted inside the inspection door (11).

4. The indoor air pollutant filtration and air supply device according to claim 3, characterized in that: Multiple HEPA filters (13) are fixedly installed at the lower interior of the filter frame (12), and multiple activated carbon filters (14) are fixedly installed at the upper interior of the filter frame (12).

5. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: A centrifugal fan (15) is fixedly installed inside the upper part of the device housing (1), and a third pipe (16) is fixedly installed on the upper surface of the device housing (1).

6. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: A control box (17) is fixedly installed on the front outer surface of the device housing (1).

7. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: A distribution box (18) is fixedly installed on the front outer surface of the device housing (1).

8. The indoor air pollutant filtration and air supply device according to claim 1, characterized in that: A mounting base (19) is fixedly installed on the rear outer surface of the device housing (1), and multiple bolts (20) are installed on the internal threads of the mounting base (19).

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