Air purification electrode structure and air purifier

Abstract

The utility model relates to an air purification electrode structure and air purifier, relate to air purification technical field, wherein, an air purification electrode structure, include: center screw rod, a plurality of discharge teeth are fixed with in the center screw rod interval, inner casing, its cover is located in the center screw rod, and forms interval with each discharge tooth, and the sidewall of inner casing is through and is set up adsorption hole, the inner wall fixed connection of inner casing has a plurality of bent teeth, each bent tooth is one -to -one and is opposite to each adsorption hole, and each bent tooth is one -to -one and corresponds to each discharge tooth and inclines to the corresponding discharge tooth, steel wire mesh layer, its cover and are fixed in the outside of inner casing. Adopt the technical scheme of the utility model, can improve the purification rate and the degree of accommodation to the suspended particle relatively, relatively prolongs the purification period, reduces the number of times that needs to take out the electrode and carries out the cleaning.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to an air purification electrode structure and an air purifier. Background Technology

[0002] The electrostatic adsorption of air purifiers essentially utilizes the "ionization-charging-adsorption" chain of a high-voltage electrostatic field: the corona discharge of the ionization electrode causes the particles to become negatively charged, and then the electric field force between the grounded dust collection electrode and the ionization electrode is used to "pull" the charged particles toward the dust collection electrode and fix them in place, ultimately achieving the separation and purification of particles.

[0003] The specific adsorption and dust removal process is as follows: Powered by a built-in fan in the air purifier, dust-laden, unpurified air is drawn in through the air inlet of the dust removal chamber, ensuring a stable and uniform flow of air into the core area of ​​the electrostatic precipitator (the space between the discharge teeth and the casing). Simultaneously, a negative high-voltage current is applied to the discharge teeth (usually sharp metal teeth, needle-like, or filamentous structures) within the dust removal chamber, and the casing is connected to the grounding electrode (0 potential). Due to the "tip effect" of the discharge teeth (the electric field strength at the tip of a conductor is much higher than on a smooth surface), a non-uniform high-voltage electrostatic field is formed between the discharge teeth and the casing. The electric field strength is extremely high near the discharge teeth, while it is relatively gentle near the casing. In the strong electric field region near the discharge teeth, air molecules (mainly oxygen and nitrogen) are "ionized," generating a large number of free electrons and positive and negative ions (this process is called "corona discharge"). When dusty air flows through this area, suspended particles in the air (such as PM2.5, dust, pollen, etc.) collide with free electrons and negative ions. Because electrons and negative ions are more mobile, most particles capture these negative charges and eventually become negatively charged particles. As the negatively charged particles continue to move towards the grounded shell (positive polarity) with the airflow, they are subjected to an electric field force pointing towards the shell in the electrostatic field (opposite charges attract each other). When the particles move near the shell, the electric field force overcomes the driving force of the airflow and the inertia of the particles themselves, causing the particles to be firmly adsorbed onto the inner wall of the shell, thus separating them from the air. After the "charge-adsorption" treatment, a large number of suspended particles in the air are removed, and the purified clean air continues to be discharged from the air outlet of the dust removal chamber under the action of the fan, completing the entire electrostatic adsorption dust removal process.

[0004] However, in the existing technology, since the inner wall of the dust removal chamber shell is usually a smooth planar structure facing the discharge teeth, forming a planar electrode structure, some of the adsorbed particles are still blown away by the airflow in the high-flow airflow, resulting in a decrease in purification efficiency. As the purification process continues, the dust accumulation on the inner wall of the shell will gradually increase. The inner wall of the shell has a limited capacity to accommodate suspended particles. If it is not disassembled and cleaned in time as purification continues, it will be blown out of the electrode by the airflow, forming secondary pollution and reducing the purification effect. Utility Model Content

[0005] This invention provides an air purification electrode structure and an air purifier, which can relatively improve the purification rate and capacity for suspended particles, relatively extend the purification cycle, and reduce the number of times the electrode needs to be removed and cleaned.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides an air purification electrode structure, including: A central screw, wherein multiple discharge teeth are fixed at intervals on the central screw; The inner shell is covered outside the central screw and is spaced apart from each of the discharge teeth. The side wall of the inner shell is provided with an adsorption hole. Multiple curved teeth are fixedly connected to the inner wall of the inner shell. Each of the curved teeth is directly opposite to each of the adsorption holes and each of the curved teeth corresponds to each of the discharge teeth and is inclined toward the corresponding discharge teeth. The two ends of the inner shell are open and form an air inlet and an air outlet. A wire mesh layer is applied to and fixed to the outside of the inner shell.

[0007] The beneficial effects of this utility model are as follows: After the power is turned on, air enters the interior from the air inlet of the inner shell. Under the dual action of electric field force and airflow, as the air to be treated moves from the air inlet to the air outlet, suspended particles are continuously captured by the inner shell and the curved teeth. At the same time, some suspended particles moving towards the curved teeth pass through the adsorption holes and are continuously captured by the wire mesh layer. After the suspended particles are captured, the purified air is discharged from the air outlet of the inner shell, thus achieving air purification. In the entire purification process, each curved tooth transforms the planar electrode in the prior art into a three-dimensional electrode, greatly enhancing the overall electrode structure's capacity to accommodate suspended particles. Suspended particles continuously deposit at the sharp angles of the curved teeth. At the same time, the wire mesh layer increases the capacity to accommodate suspended particles. Furthermore, as the purified air is discharged from the inner shell, the outer wall of the inner shell can form a barrier against the wire mesh layer, preventing the suspended particles captured by the wire mesh layer from being blown out of the electrode by the airflow and causing secondary pollution. This relatively improves the purification rate and capacity to accommodate suspended particles, relatively extends the purification cycle, and reduces the number of times the electrode needs to be removed and cleaned.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, each of the aforementioned bends is inclined toward the air inlet end of the inner shell, and the inclination angle is 1°-20°.

[0010] Furthermore, the wire mesh layer is stacked in at least two layers from the inside out, and the inner wall of the innermost layer of the wire mesh layer has a receiving space with the outer wall of the inner shell.

[0011] Furthermore, the mesh size of each layer of steel wire mesh does not exceed 100 mesh, or the mesh size of each layer of steel wire mesh is 70-100 mesh, and the mesh size increases from the inside to the outside, while the mesh diameter decreases from the inside to the outside.

[0012] Furthermore, the distance between each of the discharge teeth and the inner wall of the inner shell is 1.5cm-3.5cm.

[0013] Furthermore, it also includes two insulating plates. The two ends of the inner shell and the two ends of the wire mesh layer are respectively fixedly connected to the two insulating plates, and both insulating plates are provided with through holes. Insulating rods are fixedly connected to the inner walls of the two holes, and each insulating rod is fixedly connected to the central screw.

[0014] Furthermore, the air outlet end of the inner shell is sealed with a porous adsorption plate, one of the insulating plates is fixedly connected to the porous adsorption plate, and the central screw passes through the porous adsorption plate.

[0015] Furthermore, both insulating plates are connected to baffle boxes on the side away from the inner shell. Both baffle boxes are open in the direction away from the inner shell, and the openings are hinged with valves. A dust removal pipe is connected to the outside of the wire mesh layer, and the dust removal pipe is relatively close to the air inlet end of the inner shell.

[0016] This utility model also provides an air purifier, including at least one air purification electrode structure and an insulating box. The insulating box has an air inlet and an air outlet, and the air purification electrode structure is installed inside the insulating box. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of this utility model; Figure 2 For the present utility model Figure 1 First enlarged view of the area; Figure 3 For the present utility model Figure 1 Second enlarged view of the area; Figure 4 For the present utility model Figure 3 A magnified view of a portion of the image.

[0018] The attached diagram lists the components represented by each number as follows: 1. Central screw; 2. Discharge tooth; 3. Inner shell; 31. Adsorption hole; 32. Bending tooth; 4. Wire mesh layer; 5. Insulating plate; 51. Air hole; 52. Insulating rod; 6. Porous adsorption plate; 7. Baffle box; 71. Valve; 8. Dust removal pipe; 9. Insulating box. Detailed Implementation

[0019] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Example 1 like Figures 1-4 This utility model provides an air purification electrode structure, comprising: The central screw 1 has multiple discharge teeth 2 fixed at intervals. The inner shell 3 is covered outside the central screw 1 and forms a gap with each discharge tooth 2. The side wall of the inner shell 3 is provided with an adsorption hole 31. Multiple curved teeth 32 are fixedly connected to the inner wall of the inner shell 3. Each curved tooth 32 is directly opposite to each adsorption hole 31, and each curved tooth 32 corresponds to each discharge tooth 2 and is inclined towards the corresponding discharge tooth 2. The two ends of the inner shell 3 are open and form an air inlet and an air outlet. The wire mesh layer 4 is covered and fixed to the outside of the inner shell 3.

[0021] In operation, the central screw 1 is energized, serving as the negative high-voltage electrode (-6.1KV, 70ua current). The inner shell 3 and the wire mesh layer 4 act as the grounding electrode. After power is supplied, air enters the inner shell 3 from the inlet. Under the combined action of the electric field and airflow, as the air moves from the inlet to the outlet, suspended particles are continuously captured by the inner shell 3 and the curved teeth 32. Simultaneously, some suspended particles moving towards the curved teeth 32 pass through the adsorption holes 31 and are continuously captured by the wire mesh layer 4. The purified air, after the suspended particles are captured, is discharged from the outlet of the inner shell 3, thus achieving air purification. The entire purification process... During the process, each bend 32 transforms the planar electrode in the prior art into a three-dimensional electrode, greatly enhancing the overall electrode structure's capacity to accommodate suspended particles. Suspended particles continuously deposit at the sharp ends of the bend 32. At the same time, the steel wire mesh layer 4 further increases the capacity to accommodate suspended particles. Furthermore, as the purified air is discharged from the inner shell 3, the outer wall of the inner shell 3 can form a barrier against the steel wire mesh layer 4, preventing the suspended particles captured by the steel wire mesh layer 4 from being blown out of the electrode by the airflow and causing secondary pollution. This relatively improves the purification rate and capacity to accommodate suspended particles, relatively extends the purification cycle, and reduces the number of times the electrode needs to be removed and cleaned.

[0022] Among them, the fourth layer of wire mesh is made of stainless steel wire mesh.

[0023] The discharge teeth 2 can be triangular, conical, or pointed sharp tooth structures to enhance the tip discharge effect. They are also plated with metals such as cesium or silver to improve conductivity and discharge stability.

[0024] In the distribution of multiple discharge teeth 2, each discharge tooth 2 can be distributed at intervals along the axial direction of the central screw 1, and simultaneously circumferentially distributed around the central screw 1; specifically, multiple discharge teeth 2 distributed at intervals along the axial direction of the central screw 1 constitute a "discharge bar", and all discharge teeth 2 circumferentially surround the central screw 1 to form multiple "discharge bars", and each "discharge bar" can extend along the axial direction of the central screw 1, or be spirally distributed around the central screw 1.

[0025] In this embodiment, the distance between each discharge tooth 2 and the inner wall of the inner shell 3 is 1.5cm-3.5cm. This ensures that sufficient space is reserved between the discharge tooth 2 and the inner wall of the inner shell 3 to install the inclined curved tooth 32 and to allow airflow to pass smoothly.

[0026] The distance between each discharge tooth 2 and the inner wall of the inner shell 3 can be 1.5cm, 1.6cm, 1.7cm, 1.8cm, 1.9cm, 2cm, 2.1cm, 2.2cm, 2.3cm, 2.4cm, 2.5cm, 2.6cm, 2.7cm, 2.8cm, 2.9cm, 3cm, 3.1cm, 3.2cm, 3.3cm, 3.4cm, or 3.5cm.

[0027] In this embodiment, each bend 32 is inclined toward the air inlet end of the inner shell 3, and the angle of inclination between it and the horizontal plane is 1°-20°. Specifically, the inclination angle can be 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19° or 20°, preferably 15°.

[0028] Each bend 32 is tilted towards the air inlet of the inner shell 3, which can increase the probability of collision between particles and bend 32, guide the diversion of particles, reduce the risk of blockage, and optimize the airflow path.

[0029] When air flows through the inclined purification teeth, the airflow direction forms an angle with the purification teeth, making it easier for airborne particles to come into contact with and be adsorbed by the purification teeth, thereby increasing the probability of collision between particles and the purification teeth and improving filtration efficiency.

[0030] The inclined curved teeth 32 can divert airborne particles to both sides along the inclined surface of the curved teeth 32, preventing particles from concentrating in a local area of ​​the curved teeth 32, thus distributing them more evenly on the curved teeth 32, making full use of the adsorption area of ​​the curved teeth 32, and improving the adsorption capacity of the entire purification electrode.

[0031] Because particulate matter is guided and diverted, the adsorption load of each part of the curved teeth 32 is relatively balanced, reducing the risk of blockage caused by local overload, thus maintaining the ventilation performance of the curved teeth 32 and extending its service life. The inclined curved teeth 32 can change the airflow path, allowing the airflow to flow more smoothly in the channels between the curved teeth 32, thereby relatively reducing airflow resistance and improving the overall performance of the purification electrode.

[0032] In addition, by setting the inclined curved teeth 32, the adsorbed particles can be more easily slid off or guided into the adsorption holes 31, and further captured by the wire mesh layer 4.

[0033] like Figures 2-4 The wire mesh layer 4 has at least two layers stacked from the inside out, and the innermost layer of wire mesh layer 4 has an accommodating space between the inner wall and the outer wall of the inner shell 3.

[0034] By setting multiple layers of steel wire mesh 4, the ability to capture suspended particulate matter can be further improved, the saturation time of pollutants can be increased, and the cleaning cycle of the purification electrode can be relatively extended.

[0035] The mesh size of each layer of wire mesh 4 does not exceed 100 mesh, or the mesh size of each layer of wire mesh 4 is 70-100 mesh, and the mesh size increases from the inside to the outside, while the mesh diameter decreases from the inside to the outside.

[0036] Each layer of wire mesh 4 has a mesh size of no more than 100 to ensure the capture function of suspended particulate matter and prevent the mesh size from being too large and the mesh opening size from being too small, which would weaken the dirt-trapping effect.

[0037] In addition, the aperture of the multi-layer steel wire mesh 4 decreases from the inside to the outside, so that different steel wire mesh layers 4 can capture suspended particulate matter while reducing the possibility of particulate matter overflowing through the outermost steel wire mesh layer 4.

[0038] like Figures 2-4 The air purification electrode structure of this utility model also includes two insulating plates 5. The two ends of the inner shell 3 and the two ends of the wire mesh layer 4 are respectively fixedly connected to the two insulating plates 5. Both insulating plates 5 are provided with air holes 51. The inner walls of the two air holes 51 are fixedly connected to insulating rods 52. Each insulating rod 52 is fixedly connected to the central screw 1.

[0039] The central screw 1, inner shell 3 and wire mesh layer 4 are stably supported by two insulating plates 5. During the purification process, the airflow enters through one of the air holes 51 and is discharged through the other air hole 51 after purification.

[0040] The air outlet of the inner shell 3 is sealed with a porous adsorption plate 6, one of which is an insulating plate 5 fixedly connected to the porous adsorption plate 6, and the central screw 1 passes through the porous adsorption plate 6.

[0041] Ozone is generated during the purification process, which sterilizes bacteria in the air. At the same time, the purification electrode adsorbs suspended particles, thereby achieving a highly efficient sterilization and dust removal effect. When the purified air is discharged, it needs to pass through the porous adsorption plate 6. At this time, the porous adsorption plate 6 can adsorb the ozone generated when the point electrode is working.

[0042] Specifically, the porous adsorption plate 6 can be an activated carbon adsorption plate.

[0043] Both insulating plates 5 are connected to baffle boxes 7 on the side away from the inner shell 3. Both baffle boxes 7 are open in the direction away from the inner shell 3, and a valve 71 is hinged at the opening. A dust removal pipe 8 is connected to the outside of the wire mesh layer 4. The dust removal pipe 8 is relatively close to the air inlet end of the inner shell 3.

[0044] During the purification and dust removal process, two valves 71 are opened, and air enters through one valve 71, is purified, and then exits through the other valve 71.

[0045] When it is necessary to clean the electrode structure, close the two valves 71, apply negative high-pressure air into the electrode through the dust removal pipe 8, and draw air out. Outside air enters the electrode through the wire mesh layer 4 and is drawn out through the dust removal pipe 8. During this process, particles captured by the wire mesh layer 4 and other parts of the electrode are drawn out of the electrode by the high-pressure air through the dust removal pipe 8, achieving the effect of cleaning the inside of the electrode.

[0046] In this embodiment, a wiring hole is provided through the side wall of one of the baffle boxes 7, and a power cord is passed through the wiring hole. The power cord is connected to the central screw 1 to provide power to the central screw 1.

[0047] Example 2 like Figure 1 This utility model embodiment also provides an air purifier, including at least one air purification electrode structure as described in embodiment 1, and an insulating box 9. The insulating box 9 has an air inlet and an air outlet, and the air purification electrode structure is installed inside the insulating box 9.

[0048] The electrodes are installed through the insulating box 9 to ensure purification safety.

[0049] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air purification electrode structure, characterized in that, include: The central screw (1) has multiple discharge teeth (2) fixed at intervals. The inner shell (3) is covered outside the central screw (1) and forms a gap with each of the discharge teeth (2). The side wall of the inner shell (3) is provided with an adsorption hole (31). The inner wall of the inner shell (3) is fixedly connected with a plurality of curved teeth (32). Each of the curved teeth (32) is directly opposite to each of the adsorption holes (31). Each of the curved teeth (32) corresponds to each of the discharge teeth (2) and is inclined toward the corresponding discharge teeth (2). The two ends of the inner shell (3) are open and form an air inlet and an air outlet. A wire mesh layer (4) is covered and fixed to the outside of the inner shell (3).

2. The air purification electrode structure according to claim 1, characterized in that, Each of the aforementioned bends (32) is inclined toward the air inlet of the inner shell (3), and the inclination angle is 1°-20°.

3. The air purification electrode structure according to claim 1, characterized in that, The wire mesh layer (4) has at least two layers stacked from the inside out, and the innermost layer of the wire mesh layer (4) has an accommodating space with the outer wall of the inner shell (3).

4. The air purification electrode structure according to claim 3, characterized in that, The mesh size of each layer of wire mesh (4) does not exceed 100 mesh, or the mesh size of each layer of wire mesh (4) is 70-100 mesh, and the mesh size increases from the inside to the outside, while the mesh diameter decreases from the inside to the outside.

5. The air purification electrode structure according to claim 1, characterized in that, The distance between each of the discharge teeth (2) and the inner wall of the inner shell (3) is 1.5cm-3.5cm.

6. An air purification electrode structure according to any one of claims 1-5, characterized in that, It also includes two insulating plates (5), the two ends of the inner shell (3) and the two ends of the wire mesh layer (4) are respectively fixedly connected to the two insulating plates (5), and both insulating plates (5) are provided with air holes (51), and the inner walls of the two air holes (51) are fixedly connected with insulating rods (52), and each insulating rod (52) is fixedly connected to the central screw (1).

7. The air purification electrode structure according to claim 6, characterized in that, The air outlet of the inner shell (3) is sealed with a porous adsorption plate (6), one of the insulating plates (5) is fixedly connected to the porous adsorption plate (6), and the central screw (1) passes through the porous adsorption plate (6).

8. The air purification electrode structure according to claim 6, characterized in that, Both insulating plates (5) are connected to baffle boxes (7) on the side away from the inner shell (3). Both baffle boxes (7) are open in the direction away from the inner shell (3), and a valve (71) is hinged at the opening. A dust removal pipe (8) is connected to the outside of the wire mesh layer (4). The dust removal pipe (8) is relatively close to the air inlet end of the inner shell (3).

9. An air purifier, characterized in that, The device includes at least one air purification electrode structure as described in any one of claims 1-8, and also includes an insulating box (9) having an air inlet and an air outlet, and the air purification electrode structure is installed inside the insulating box (9).

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