Parallel air flow air purification electric field

Abstract

This invention provides a parallel-inlet air purification electric field, comprising a plurality of electrode plates and a plurality of discharge plates arranged at intervals. The electrode plates have first air holes, and the discharge plates have second air holes, which are staggered along the axial direction of the air duct. In this invention, air passes through the first and second air holes, repeatedly bending between the electrode plates and discharge plates, reducing the likelihood of regular electric field blind spots and thus improving the effective electric field coverage. Furthermore, the airflow velocity is reduced due to the obstruction of the electrode plates and discharge plates, resulting in sufficient electric field attraction and significantly improving the adsorption effect on small particulate impurities. Since the electrode plates and discharge plates are perpendicular to the air duct's extension direction, they can be stacked sequentially along the duct length, eliminating the need for additional electrode plate fixing or pressurization equipment. This facilitates bending and stacking within the air duct, reducing space occupancy even in long air ducts.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and more particularly to an air purification electric field with parallel air intake. Background Technology

[0002] Air purifiers are indispensable equipment in modern industrial production and daily life, used to treat various indoor and industrial gaseous pollutants such as cooking fumes, dust, pollen, formaldehyde, odors, and VOCs. They are classified into several types based on their purification principles: mechanical purifiers rely on filters and baffles to trap large oil droplets through inertial collision; electrostatic purifiers use a high-voltage electric field to charge oil fumes, which are then adsorbed by electrodes; activated carbon purifiers utilize a porous structure to adsorb odors and volatile organic compounds; and UV photolysis purifiers use ultraviolet light to catalyze oxidation and decompose harmful gaseous waste gases. Through single or combined purification structures, they can filter out solid particles and gaseous pollutants in various situations, optimizing air quality.

[0003] Electrostatic separation equipment is widely used in various air purification applications due to its simple structure, high efficiency, and low cost. The equipment features a high-voltage ionization zone and an air purification electric field. When oily fumes pass through the ionization zone, the oil mist particles become charged under the influence of the high-voltage electric field. They then enter the purification electric field, where the charged oil droplets are attracted by the electric field and adsorbed onto the electrode plate surface. The condensed oil flows along the electrode plate and is collected and recycled. Simultaneously, fine dust and oil aerosols in the flue gas are intercepted and separated, and the purified air is discharged. Electrostatic air purifiers do not require frequent filter replacements, have low air resistance, and are suitable for scenarios that generate oily fumes, such as restaurant kitchens and industrial processing. With simple electrode plate washing maintenance, they can operate stably for a long time.

[0004] However, current electrostatic air purifiers still have certain problems. Existing air purification electric field structures typically include opposing electrode plates and discharge plates, with a power source connected to the discharge plates, creating a voltage difference between them and generating an electric field perpendicular to the plates. When air passes perpendicular to the electric field, it is deflected by the field and eventually adsorbed onto the electrode plate surface. This plate-type electric field is limited by its arrangement, resulting in uneven electric field distribution between plates and potential electric field blind spots at the corners of the channels. Furthermore, because small particles have low charge and experience less electric field force, ultrafine particles have a high penetration rate, significantly impacting overall purification efficiency at high airflow rates. Additionally, since the total length of the electrode plates and discharge plates equals the length of the electric field coverage, multiple electrode plates and discharge plates need to be stacked in series when the air contains a large number of impurities, leading to high space occupancy, inconvenient installation, and increased costs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a parallel air intake air purification electric field, which solves the problems of numerous electric field blind spots, low purification rate for small particulate impurities, and difficulty in increasing the length of existing technologies.

[0006] According to an embodiment of the present invention, a parallel air-intake air-purifying electric field, configured in conjunction with the air duct of an air purifier, includes a plurality of electrode plates and a plurality of discharge plates arranged sequentially at intervals. The shapes of the electrode plates and discharge plates are matched with the cross-sectional shape of the air duct, allowing it to completely seal the air duct. The electrode plates and discharge plates are both arranged perpendicular to the central axis of the air duct. The electrode plates are provided with a plurality of first air holes for air passage, and the discharge plates are provided with a plurality of second air holes for air passage. The first air holes and second air holes are staggered along the axial direction of the air duct, so that they cannot correspond one-to-one. Therefore, when air passes through the electrode plates and discharge plates, it needs to bend back and forth. The system also includes a power supply line, which is electrically connected to each discharge plate and is insulated from the electrode plates.

[0007] Furthermore, the electrode plate and the discharge plate are circular plates with several baffles surrounding the center. The baffles on adjacent electrode plates and discharge plates are staggered, and the gaps between the baffles form a first air hole or a second air hole.

[0008] Furthermore, the baffle is a strip-shaped straight plate or a curved arc plate.

[0009] Furthermore, the electrode plate and the discharge plate are square plates with a number of independently distributed first air holes or second air holes. The number of first air holes and second air holes on adjacent electrode plates and discharge plates may be the same or different, and the first air hole or second air hole located further back in the airflow direction cannot cover the location of the first air hole or second air hole located in front.

[0010] Furthermore, the inner edge of the first or second air vent is provided with several inwardly protruding serrated structures.

[0011] Furthermore, the size and shape of the sawtooth structure are not uniform, and the overall distribution is random and irregular.

[0012] Furthermore, the power supply line includes a conductor and an insulating layer disposed on the outside of the conductor, and the electrode plate and the discharge plate are respectively connected to the outer side of the insulating layer; the insulating layer is provided with a through hole at the connection point of the corresponding discharge plate, and a conductor is provided in the through hole, thereby electrically connecting the conductor and the discharge plate.

[0013] Furthermore, the power supply line is located inside the air duct and is collinear with the axis of the air duct. The power supply line is a rigid rod-shaped structure. A solid connecting plate is provided at the center of the electrode plate and the discharge plate. The power supply line passes through the connecting plate of each electrode plate and the discharge plate in sequence and is fixedly connected to the connecting plate.

[0014] Furthermore, the power supply line is a flexible structure and is installed on the inner wall of the air duct, extending in the same direction as the air duct. The power supply line is connected to the edge positions of the electrode plate and the discharge plate respectively.

[0015] Furthermore, the electrode plate and discharge plate are rigid structures, and a connecting frame is provided on the outer edge of the electrode plate and discharge plate, which is fixedly connected to the inner wall of the air duct.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention involves stacking several electrode plates and discharge plates at intervals to form a multi-layer electric field structure. Air passes through the non-one-to-one correspondence between the first and second air vents, repeatedly bending between the electrode plates and discharge plates, thus passing through each layer of the electric field and being continuously adsorbed and purified. Because the electric field distribution in this invention is irregular, the electric field between the plates can take various forms such as vertical and inclined, making it less likely for regular electric field blind zones to appear, thereby improving the effective electric field coverage.

[0018] 2. In this invention, the electrode plate and the discharge plate are set perpendicular to the airflow direction. Therefore, regardless of the airflow speed, it will be blocked by the electrode plate and the discharge plate, thereby reducing the flow velocity as it passes through the first air hole and the second air hole. In the process of meandering through the electric field, it is fully attracted by the electric field, thereby greatly improving the adsorption effect on small particulate impurities.

[0019] 3. The electrode plate and discharge plate of the present invention are perpendicular to the extension direction of the air duct, so they can be stacked sequentially according to the length of the air duct without the need for additional fixing or pressurizing equipment for the electrode plates. This facilitates the bending and stacking of the air duct and reduces space occupation when the air duct is long. At the same time, the airflow in the present invention needs to pass through the electrode plate and discharge plate through repeated bending, which also indirectly increases the total length of the electric field and further improves the purification effect. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention.

[0021] Figure 2 This is a front view of the electrode plate in Embodiment 1 of the present invention.

[0022] Figure 3 This is a diagram showing the electric field distribution between adjacent electrode plates and discharge plates in an embodiment of the present invention.

[0023] Figure 4 This is a diagram showing the electric field distribution between adjacent electrode plates and discharge plates in an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the power supply line connection in Embodiment 1 of the present invention.

[0025] Figure 6 This is a front view of the electrode plate in Embodiment 2 of the present invention.

[0026] In the above figures: 1. Air duct; 2. Electrode plate; 3. Discharge plate; 4. Power supply line; 5. Connecting plate; 6. Serrated structure; 7. Connecting frame; 21. First air hole; 31. Second air hole; 41. Wire; 42. Insulation layer; 43. Through hole.

[0027] Figure 3 , Figure 4 In the diagram, solid arrows indicate the direction of airflow, and dashed arrows indicate the direction of the electric field. Detailed Implementation

[0028] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1:

[0030] like Figure 1 As shown, this embodiment of the invention proposes a parallel air intake air purification electric field, configured in conjunction with the air duct 1 of an air purifier, including a plurality of electrode plates 2 and a plurality of discharge plates 3 arranged at intervals. The cross-section of the air duct 1 can be of any shape, and the shapes of the electrode plates 2 and discharge plates 3 are matched to the cross-sectional shape of the air duct 1, so that it can completely seal the air duct 1. In this embodiment, the cross-section of the air duct 1 is circular, that is, the air duct 1 is a cylindrical structure, and the electrode plates 2 and discharge plates 3 are circular plates.

[0031] In this embodiment, both the electrode plate 2 and the discharge plate 3 are arranged perpendicular to the central axis of the air duct 1. The electrode plate 2 is provided with a plurality of first air holes 21 for air to pass through, and the discharge plate 3 is provided with a plurality of second air holes 31 for air to pass through. Figure 2 As shown, since the electrode plate 2 and discharge plate 3 in this embodiment are circular plates, they are configured as hollow annular structures, with several baffles surrounding the center. The gaps between the baffles form a first air hole 21 or a second air hole 31. The baffles on adjacent electrode plates 2 and discharge plates 3 are staggered, so that the first air hole 21 and the second air hole 31 are offset from each other along the axial direction of the air duct 1, preventing them from corresponding one-to-one. Therefore, when air passes through the electrode plates 2 and discharge plates 3, it needs to bend back and forth.

[0032] Preferably, the baffle is a strip-shaped straight plate or a curved arc plate. In this embodiment, the baffle is a straight plate passing through the center of a circle, thereby dividing the space into several fan-shaped first air holes 21 or second air holes 31. Figure 3 , 4 As shown, in this embodiment, the widths of the baffles on the electrode plate 2 and the discharge plate 3 can be the same or different. That is, there may be partial axial overlap or complete offset between the baffles of adjacent discharge plates 3 and electrode plates 2, thereby forming an electric field parallel to or inclined relative to the axial direction of the air duct 1. However, when the airflow passes through the baffles perpendicular to the axial direction of the air duct 1, it will inevitably pass through the direction of the electric field. Therefore, it will be subjected to an electric field force that is generally oriented to the same side but slightly inclined in various different directions. Thus, there will be no electric field blind zone, so that most of the charged particles will come into contact with the electrode plate 2 and be adsorbed.

[0033] like Figure 5 As shown, this embodiment of the invention also includes a power supply line 4, which is electrically connected to each discharge plate 3 and insulated from the electrode plate 2. Specifically, the power supply line 4 includes a conductor 41 and an insulating layer 42 disposed outside the conductor 41. The electrode plate 2 and the discharge plate 3 are respectively connected to the outer surface of the insulating layer 42. The insulating layer 42 has through holes 43 at the connection points of the corresponding discharge plates 3, and a conductor is disposed in the through holes 43, thereby electrically connecting the conductor 41 and the discharge plate 3. In this way, voltage can be applied only to the discharge plate 3, thereby forming a voltage difference between the electrode plate 2 and the discharge plate 3 and generating an electric field.

[0034] Since the electrode plate 2 and discharge plate 3 in this embodiment are circular plates, the power supply line 4 is correspondingly located inside the air duct 1 and is collinear with the axis of the air duct 1. The power supply line 4 is a rigid rod-shaped structure, and a solid connecting plate is provided at the center of the electrode plate 2 and discharge plate 3. The power supply line 4 passes through the connecting plate of each electrode plate 2 and discharge plate 3 in sequence and is fixedly connected to the connecting plate. In this way, the center of the electrode plate 2 and discharge plate 3 can be fixed.

[0035] In a preferred embodiment, the inner edge of the first air vent 21 or the second air vent 31 is provided with several inwardly protruding serrated structures 6. The size and shape of the serrated structures 6 are not uniform, and they are randomly and irregularly distributed. Therefore, when the airflow passes through the first air vent 21 and the second air vent 31, it is disturbed by the serrated structures 6, generating local eddies, which makes the airflow direction irregular, allowing the airflow to be more evenly distributed between the electrode plate 2 and the discharge plate 3, and achieving better electric field separation by passing through at a slower flow rate.

[0036] Example 2:

[0037] The rest of this embodiment is the same as in Embodiment 1, except that:

[0038] like Figure 6 As shown, electrode plate 2 and discharge plate 3 are square plates with several independently distributed first air holes 21 or second air holes 31. The number of first air holes 21 and second air holes 31 on adjacent electrode plates 2 and discharge plates 3 can be the same or different. The first air hole 21 or second air hole 31 located further back in the airflow direction cannot cover the location of the first air hole 21 or second air hole 31 located in front. In this way, the airflow will not pass through the first air hole 21 or second air hole 31 in a single direction, but must bend back and forth between discharge plate 3 and electrode plate 2.

[0039] Correspondingly, the power supply line 4 is a flexible structure and is installed on the inner wall of the air duct 1, extending in the same direction as the air duct 1. The power supply line 4 is connected to the edge positions of the electrode plate 2 and the discharge plate 3 respectively. Correspondingly, the electrode plate 2 and the discharge plate 3 are rigid structures. Since the square plate structure is not convenient for center fixing, the outer edges of the electrode plate 2 and the discharge plate 3 are provided with connecting frames 7. The connecting frames 7 are fixedly connected to the inner wall of the air duct 1 to achieve positioning and fixing of the electrode plate 2 and the discharge plate 3.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A parallel air intake air purification electric field, configured in conjunction with the air duct of an air purifier, characterized in that: The system includes several electrode plates and several discharge plates arranged at intervals. The shapes of the electrode plates and discharge plates are matched with the cross-sectional shape of the air duct to completely seal the air duct. The electrode plates and discharge plates are both arranged perpendicular to the central axis of the air duct. The electrode plates are provided with several first air holes for air to pass through, and the discharge plates are provided with several second air holes for air to pass through. The first air holes and second air holes are staggered along the axial direction of the air duct so that they cannot correspond one-to-one. Therefore, when air passes through the electrode plates and discharge plates, it needs to bend back and forth. The system also includes power supply lines, which are electrically connected to each discharge plate and are insulated from the electrode plates.

2. The air purification electric field with parallel air intake as described in claim 1, characterized in that: The electrode plate and discharge plate are circular plates with several baffles surrounding the center. The baffles on adjacent electrode plates and discharge plates are staggered, and the gaps between the baffles form a first air hole or a second air hole.

3. The air purification electric field with parallel air intake as described in claim 2, characterized in that: The baffle is a strip-shaped straight plate or a curved arc plate.

4. The air purification electric field with parallel air intake as described in claim 1, characterized in that: The electrode plate and discharge plate are square plates with several independently distributed first air holes or second air holes. The number of first air holes and second air holes on adjacent electrode plates and discharge plates may be the same or different, and the first air hole or second air hole located further back in the airflow direction cannot cover the location of the first air hole or second air hole located in front.

5. The air purification electric field with parallel air intake as described in claim 1, characterized in that: The inner edge of the first or second air vent has several inwardly protruding serrated structures.

6. The parallel air intake air purification electric field as described in claim 5, characterized in that: The size and shape of the sawtooth structure are not uniform, and the overall distribution is random and irregular.

7. The air purification electric field with parallel air intake as described in claim 1, characterized in that: The power supply line includes a conductor and an insulating layer disposed on the outside of the conductor. The electrode plate and the discharge plate are respectively connected to the outer side of the insulating layer. The insulating layer is provided with a through hole at the connection point of the corresponding discharge plate, and a conductor is provided in the through hole, thereby electrically connecting the conductor and the discharge plate.

8. The air purification electric field with parallel air intake as described in claim 2, characterized in that: The power supply line is located inside the air duct and is collinear with the axis of the air duct. The power supply line is a rigid rod-shaped structure. A solid connecting plate is provided at the center of the electrode plate and the discharge plate. The power supply line passes through the connecting plate of each electrode plate and the discharge plate in sequence and is fixedly connected to the connecting plate.

9. The air purification electric field with parallel air intake as described in claim 4, characterized in that: The power supply line is a flexible structure and is installed on the inner wall of the air duct, extending in the same direction as the air duct. The power supply line is connected to the edge of the electrode plate and the discharge plate respectively.

10. The air purification electric field with parallel air intake as described in claim 4, characterized in that: The electrode plate and discharge plate are rigid structures, and a connecting frame is provided on the outer edge of the electrode plate and discharge plate. The connecting frame is fixedly connected to the inner wall of the air duct.

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