Efficient air purification device

Abstract

The utility model discloses an efficient air purification device which comprises a first-section purification cylinder and a second-section purification cylinder which are connected in series, and a peripheral cylinder is arranged on the periphery of the first-section purification cylinder and the second-section purification cylinder. The first-section purification barrel comprises a plurality of air inlets formed in the periphery of the peripheral barrel and a first cylindrical filter screen arranged in the peripheral barrel in a sleeved mode, air enters the first-section purification barrel from the air inlets and passes through the first cylindrical filter screen, and first-time air purification is completed. The second-section purification barrel comprises a hollow air inlet ring and a second cylindrical filter screen which is sleeved into the peripheral barrel, the inner ring of the second cylindrical filter screen is communicated with the inner ring of the air inlet ring, a ventilation ring channel is formed between the periphery of the second cylindrical filter screen and the peripheral barrel, and a flow dividing column is arranged at the upper end part of the second cylindrical filter screen. And in the second cylindrical filter screen, the speed of inner ring axial air inlet and outer periphery air outlet can be reduced, and the electrostatic filter effect is improved through the electrostatic filter screen mode. The whole air purification device can guarantee the purification amount through two-section type filtering, and meanwhile the efficient and uniform effect of cylindrical purification can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of air purification, in particular to the field of purification using high-voltage static electricity. Background Art

[0002] Air purification devices are divided into two types based on purification principles: physical interception and electrostatic dust collection. Based on shape, they are divided into two types: plate type and cylinder type. Both are currently in use on the market.

[0003] With the increasing attention paid to health and hygiene in recent years, the attention paid to electrostatic purification has gradually increased. Relatively speaking, electrostatic purification itself can eliminate viruses and bacteria, and its characteristics of being washable and non-consumable have the cost advantage of saving filter consumables.

[0004] However, when using high-voltage electrostatic purification devices, the effect of electric purification and filtration is affected in some relatively severely polluted environments, and there is no way to completely filter them.

[0005] Therefore, this case arose in this context. Utility Model Content

[0006] The utility model provides an air purification device which can realize efficient multi-stage cylindrical electrostatic purification.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A high-efficiency air purification device, characterized by comprising a first-stage purification cylinder 100 and a second-stage purification cylinder 200 arranged in series, wherein the outer periphery of the first-stage purification cylinder 100 and the second-stage purification cylinder 200 is provided with an outer peripheral cylinder 300;

[0009] The first stage purification cylinder 100 includes a plurality of air inlets 110 arranged around the outer peripheral cylinder 300 and a first cylindrical filter 120 inserted into the inner part of the outer peripheral cylinder 300. Air enters from the air inlets 110 and passes through the first cylindrical filter 120.

[0010] The second stage purification cylinder 200 comprises a hollow air inlet ring 210 disposed on one side of the first stage purification cylinder 100, a second cylindrical filter screen 220 which is inserted into the outer peripheral cylinder 300 and whose inner ring is connected to the inner ring of the air inlet ring 210, and a ventilation loop 330 is formed between the outer periphery of the second cylindrical filter screen 220 and the outer peripheral cylinder 300;

[0011] A diverter column 270 is provided at the upper end of the second cylindrical filter screen 220 .

[0012] More preferably, the diverter column 270 is an inverted cone that penetrates the inner ring of the second cylindrical filter screen 220 from top to bottom.

[0013] More preferably, the second-stage purification cylinder 200 further includes a hollow second support plate 230 disposed at the upper end of the second cylindrical filter screen 220 , and a diverter plate 240 disposed between the second support plate 230 and the second cylindrical filter screen 220 and in contact with the inner wall of the outer peripheral cylinder 300 .

[0014] More preferably, the diverter plate 240 is attached to the top of the second cylindrical filter screen 220 and is provided with a plurality of diverter holes 241 along the outer circumference, and at least a portion of the diverter holes 241 is communicated with the ventilation annulus 330 .

[0015] Preferably, the first stage purification cylinder 100 further comprises a hollow first support plate 130 and a bottom shell 140 disposed between the first cylindrical filter screen 120 and the second stage purification cylinder 200, and the first cylindrical filter screen 120 is communicated with the air inlet 110;

[0016] More preferably, fans 400 are provided on both the first support plate 130 and the second support plate 230 .

[0017] More preferably, the present invention further comprises a hollow fourth support plate 260 disposed on the upper end of the fan 400 on the second support plate 230 and a plurality of second negative ion generators 520 disposed on the upper end of the fourth support plate 260 .

[0018] More preferably, the peripheral tube 300 is an integral body that penetrates the first-stage purification tube 100 and the second-stage purification tube 200 or a combination of the first-stage purification tube 100 and the second-stage purification tube 200 .

[0019] More preferably, it further includes a top cover 340 disposed on the top of the outer tube 300 and provided with a plurality of air outlets 341 .

[0020] More preferably, the upper end or the lower end of the first cylindrical filter screen 120 and the second cylindrical filter screen 220 is provided with a positive / negative conductive contact 4 .

[0021] Compared with the prior art, the beneficial effects are:

[0022] First, a first stage purification cylinder and a second stage purification cylinder are arranged in series, the first stage purification cylinder has a plurality of air inlets, and the first air purification is completed in the first cylindrical filter.

[0023] Secondly, the second cylindrical filter can be used to axially inlet the air from the inner ring, and the air outlet from the outer ring is decelerated through the electrostatic filter, which improves the electrostatic filtration effect. This allows the entire air purification device to ensure the purification volume through two-stage filtration while achieving the efficient and uniform effect of cylindrical purification.

[0024] Thirdly, the case is equipped with a high-voltage diversion column, which will form a high-voltage electric field. After the first purification, the dust that has not been removed will be re-charged in this electric field. Then it enters the second purification cylinder. Since the second purification cylinder also carries high voltage electricity, the re-charged dust will be completely adsorbed and filtered more thoroughly after passing through the second purification cylinder.

[0025] Fourthly, the second negative ion generator is set to release ions into the air, so that the dust and other particles in the air are charged. At this time, the first stage purification cylinder is circulated, and the charged dust particles will be more easily adsorbed by the first stage purification cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of a high-efficiency air purification device in this case;

[0027] Figure 2 It is a cross-sectional view of a high-efficiency air purification device in this case;

[0028] Figure 3 This is an exploded view of the main components of a high-efficiency air purification device in this case;

[0029] Figure 4 It is a schematic diagram of one embodiment of the first stage purification cartridge of a high-efficiency air purifier in this case;

[0030] Figure 5 is a schematic diagram of the cylindrical filter screen in this case;

[0031] Figure 6 This is an exploded view of the cylindrical filter in this case;

[0032] Figure 7 It is a schematic diagram of the positive / negative conductive contacts of the cylindrical filter in this case. DETAILED DESCRIPTION

[0033] This case is a method for manufacturing a flexible electrostatic sheet body and a flexible electrostatic sheet body and a filter disclosed in the Chinese patent CN114160309A previously applied by the applicant, which discloses a method for manufacturing a foldable flexible electrostatic net with high production efficiency and stable conductive performance. For its foldable application scheme, it can be rolled into a cylindrical electrostatic filter. The first cylindrical filter and the second cylindrical filter described in this case are the cylindrical electrostatic filters described above. For the convenience of description, the first cylindrical filter and the second cylindrical filter are collectively referred to as cylindrical filters in some descriptions.

[0034] As described above, in the Chinese patent CN114160309A, a plurality of first plate layers, a plurality of second plate layers, an upper conductive connection layer, and a lower conductive connection layer are formed by printing a conductive coating on a first flexible electrical insulating member, and then the conductive coating area is sandwiched between the first flexible electrical insulating member and the second flexible electrical insulating member by covering and pasting the second flexible electrical insulating member, and all the first plate layers and the upper conductive connection layer are connected as a whole by printing a conductive coating, and all the second plate layers and the lower conductive connection layer are connected as a whole by printing a conductive coating. In this way, by folding the flexible member so that the first plate layer and the second plate layer are opposite to each other, and then connecting the upper conductive connection layer and the lower conductive connection layer to different electrodes, an electric field for adsorbing particulate matter can be formed between the plate layers, and at the same time, the flexible member between adjacent plate layers is punched with hollow openings so that air can pass through the electric field between adjacent plate layers. For the sake of convenience, the flexible electrostatic net described in this case is the flexible electrostatic sheet in Chinese patent CN114160309A and the foldable electrostatic filter used therein, the upper conductive connecting layer and the lower conductive connecting layer described in this case are the upper conductive connecting layer and the lower conductive connecting layer in Chinese patent CN114160309A, and the electrode layer described in this case is the first electrode layer and the second electrode layer in Chinese patent CN114160309A.

[0035] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0036] Please refer to Figure 1 and Figure 2 The air purification device of this case includes a first-stage purification cylinder 100 and a second-stage purification cylinder 200 arranged in series, and an outer peripheral cylinder 300 is arranged on the outer periphery of the first-stage purification cylinder 100 and the second-stage purification cylinder 200. Specifically, the outer peripheral cylinder 300 can be a whole that runs through the first-stage purification cylinder 100 and the second-stage purification cylinder 200, or a combination of the first-stage purification cylinder 100 and the second-stage purification cylinder 200. In this embodiment, the outer peripheral cylinder 300 is described using a combination of a first outer peripheral cylinder 310 and a second peripheral cylinder 320 arranged in the first-stage purification cylinder 100.

[0037] Please refer to Figure 3 The first stage purification cylinder 100 includes a plurality of air inlets 110 arranged around the first outer peripheral cylinder 310, a first cylindrical filter 120 inserted into the first outer peripheral cylinder 310, and the first cylindrical filter 120 is connected to the air inlet 110. A hollow first support plate 130 and a bottom shell 140 whose bottom covers the high-efficiency air purification component are arranged between the first cylindrical filter 120 and the second stage purification cylinder 200.

[0038] In this way, air can enter from the air inlet 110 and be filtered by the first cylindrical filter 120, thereby forming an outer peripheral air intake method to improve air intake efficiency. The air filtered by the first cylindrical filter 120 can be transported to the second stage purification cylinder 200 through the hollow first support plate 130.

[0039] The second stage purification cylinder 200 includes a hollow air inlet ring 210 disposed on one side of the first stage purification cylinder 100, and a second cylindrical filter screen 220 which is inserted into the second outer peripheral cylinder 320 and whose inner ring is connected to the inner ring of the air inlet ring 210. A ventilation annular channel 330 is formed between the outer periphery of the second cylindrical filter screen 220 and the second outer peripheral cylinder 320. In this way, the air filtered by the first stage purification cylinder 100 can enter the axial direction of the inner ring of the second cylindrical filter screen 220 from the hollow air inlet ring 210.

[0040] The second-stage purification cylinder 200 also includes a hollow second support plate 230 arranged at the upper end of the second cylindrical filter screen 220, and a diverter plate 240 arranged between the second support plate 230 and the second cylindrical filter screen 220 and attached to the inner wall of the second peripheral cylinder 320. The diverter plate 240 is attached to the top of the second cylindrical filter screen 220 and is provided with a plurality of diverter holes 241 along the periphery, and at least a portion of the diverter holes 241 is communicated with the ventilation loop 330.

[0041] In this way, after the air axially enters the inner ring of the second cylindrical filter screen 220, since the top inner ring of the second cylindrical filter screen 220 is blocked by the diverter plate 240, the air entering axially flows toward the ventilation annulus 330 side and is discharged from the hollow second support plate 230 through the diverter hole 241.

[0042] At this time, the air enters the inner ring axial direction of the second cylindrical filter 220, and the speed of the outer peripheral air is reduced by the electrostatic filter, which improves the electrostatic filtration effect. The entire air purification device can ensure the purification amount through two-stage filtration while achieving the efficient and uniform effect of cylindrical purification.

[0043] As mentioned above, the air purification device is axially discharged, so it can be connected to the pipeline to output purified air in a directional manner, and its power is provided by the pipeline exhaust. Of course, as a preferred solution, the power device of the air tightening device can be set inside to make it a purification device that can circulate air independently.

[0044] The power system built into the air purification device can be a fan 400 disposed on the upper part of the first support plate 130 and the second support plate 230. As a part of the air purification device, the fan 400 can be selected to be disposed on the upper part of the first support plate 130 and the second support plate 230 at the same time, or can be disposed at one place on the upper part of the first support plate 130 or the second support plate 230.

[0045] At this time, a top cover 340 with a plurality of air outlets 341 can be set on the top of the outer tube 300. This top cover 340 can be set on the top of the second outer tube 320 of the second stage purification tube 200, or the first stage purification tube 100 can be separated and the top cover 340 can be set on the top of the first outer tube 310 on the upper part. In this case, the use effect is as follows: Figure 4 By analogy, the air purification device of the present invention can be provided in three or four sections in addition to one section, and a plurality of second section purification cartridges 200 can be provided according to environmental requirements.

[0046] Specifically, the electrostatic purification is implemented in combination with a negative ion generator. The negative ion generator uses a high-voltage transformer to boost the power frequency voltage to the required voltage to generate negative ions, which are released into the surrounding air. The negative ions collide with the dust particles in the air during movement, making the dust particles negatively charged. Therefore, the negative ion generator can be used as an independent device, installed outside the air purification device, or built into the air purification device.

[0047] As a device for negatively charging dust particles in the air, the air purification device also includes a hollow third support plate 140 disposed between the upper fan 400 of the first support plate 130 and the air intake ring 210. A hollow fourth support plate 260 is provided at the upper end of the upper fan 400 of the second support plate 230, and a plurality of second negative ion generators 520 are provided at the upper end of the fourth support plate 260.

[0048] Here, there are preferably two second negative ion generators 520 , which are disposed at both ends of the fourth support plate 260 in the radial direction.

[0049] When the air is discharged from the air purification device, it will carry the negative ions generated by the second negative ion generator 520. The negative ions float in the air and attach to the dust particles in the air, making them negatively charged. When the air circulates back and enters from the air inlet 110 of the first stage purification cylinder 100 and passes through the first cylindrical filter 120, the dust particles are negatively charged and will be captured by the first cylindrical filter 120 with a voltage electric field, completing the first filtration. At this time, after the first purification, the dust that has not been removed will lose power and will enter the interior of the second cylindrical filter 220. Since a diverter column 270 is provided inside the second cylindrical filter 220, this diverter column 270 carries high voltage electricity. An electric field is formed in the diverter column 270, and the dust that has not been removed will be recharged after passing through the electric field formed by the diverter column 270. Then it enters the second purification cylinder. Since the second purification cylinder also carries high voltage electricity, the re-charged dust will be completely adsorbed and filtered more thoroughly after passing through the second purification cylinder.

[0050] After being charged at close range, when the air enters axially from the lower end of the inner circle of the second cylindrical filter 220 of the second stage purification cylinder 200, the negatively charged dust particles are captured by the electric field formed between the electrode layers when passing through the second cylindrical filter 220. The purified air passes through the ventilation ring 330, the diverter hole 241, the fan 400, the second negative ion generator 520 in sequence, and is discharged into the environment. In this process, the air will carry the negative ions generated by the second negative ion generator 520. In this way, an air circulation purification device is formed.

[0051] When the axial air intake is actually applied to the second cylindrical filter 220, because the cylindrical structure has a certain depth, the axial air intake is used. In the depth of the ring-shaped structure, that is, the upper end of the second cylindrical filter 220 in this embodiment, the air intake is relatively thin, and the air pressure on the second cylindrical filter 220 is small, resulting in a greater ventilation volume at the lower end of the second cylindrical filter 220 than at the upper end. Therefore, facing the problem of low utilization efficiency of the second cylindrical filter 220, the common practice is to increase pressure at the front end. However, the front end pressure increase will cause excessive wind speed, reducing the filtering effect.

[0052] This case provides an effective solution. Please refer to Figure 2 and Figure 3 , a diverter column 270 is provided at the bottom of the diverter plate 240 to divert the incoming air of the inner ring of the second cylindrical filter screen 220. Preferably, the diverter column 270 is an inverted cone that is provided through the inner ring of the second cylindrical filter screen 220 from top to bottom. In this way, the inverted cone is a structure that increases with the incoming air direction, that is, a decreasing air inlet channel will be formed in the inner ring of the second cylindrical filter screen 220. Therefore, when the axial incoming air moves upward, the gas pressure above will be consistent with that below, and can pass through the second cylindrical filter screen 220 evenly, effectively solving the problem of low utilization efficiency of the second cylindrical filter screen 220 caused by low wind pressure when the inner ring is axially incoming.

[0053] In another embodiment, a third negative ion generator may also be provided in the diverter column 270. In this way, the air pollutants sucked in are charged at a close distance when the air is introduced, further improving the filtering effect. Of course, the first negative ion generator 510, the second negative ion generator 520 and the third negative ion generator may be used simultaneously, or the first negative ion generator 510, the second negative ion generator 520, the third negative ion generator, or two of them may be used in combination.

[0054] The implementation method of the cylindrical filter screen is described in detail as follows. In the following description, the cylindrical filter screens are the first cylindrical filter screen 120 and the second cylindrical filter screen 220 .

[0055] Please refer to Figure 5 , is a rendering of the cylindrical filter net after assembly in this case, which plays a purification role, is rolled into a cylindrical shape and has a longitudinal joint at the connection. The upper and lower ends of the flexible electrostatic net 1 are respectively provided with an upper conductive connection layer and a lower conductive connection layer. Reinforcing ribs 2 are provided at the longitudinal joints of the flexible electrostatic net 1 rolled into a cylindrical shape, so that it can complete the joint and form a stable cylindrical shape. Hollow ring-shaped covers 3 are provided at the upper and lower ends of the flexible electrostatic net 1. According to the upper and lower heights of the flexible electrostatic net 1, fixing glue can be arranged at intervals between the upper and lower ends. This is a common practice in the industry and will not be described in detail here. In this way, a cylindrical electrostatic filter net structure is formed, in which the entire flexible electrostatic net 1 is rolled, and the stability of the entire purification component is high, thereby achieving efficient cylindrical electrostatic purification.

[0056] In applications, electrostatic filtration requires electricity. By connecting the upper conductive connection layer and the lower conductive connection layer to different electrodes, an electric field for adsorbing charged particles can be formed between the electrode layers. Figure 6 and Figure 7 A positive / negative conductive contact 4 is provided on one of the upper and lower covers, and the positive / negative conductive contact 4 is connected to the upper conductive connection layer and the lower conductive connection layer of the flexible electrostatic net 1 through a conductive wire 5 respectively.

[0057] In this way, the entire cylindrical flexible electrostatic net 1 is positioned and fixed at one time by using the reinforcing ribs 2 and the hollow cover 3 at the upper and lower ends with positive / negative conductive contacts 4 at one end, so that the assembly of the cylindrical electrostatic filter that can be powered on can be completed. Compared with the traditional sheet-by-sheet positioning and fixing method, the assembly efficiency is greatly improved. And its positive / negative conductive contacts 4 are set on the cover, which is extremely convenient for use in air purifiers, including disassembly and reinstallation when disassembling and washing.

[0058] Preferably, the reinforcing rib 2 adopts an I-shaped structure, please refer to Figure 6 and Figure 7 . There are two conductive wires 5, which are respectively connected to the two contacts of the positive / negative conductive contact 4 and the upper conductive connection layer and the lower conductive connection layer. Taking the case where the positive / negative conductive contact 4 is in the lower cover 3 in the embodiment of the present case as an example, one of the conductive wires 5 passes through the structural seam 21 of the I-shaped structure of the reinforcing rib 2, with one end connected to one of the contacts of the positive / negative conductive contact 4, and the other end connected to the upper conductive connection layer at the upper end. At this time, one end of the other conductive wire 5 is connected to the other contact of the positive / negative conductive contact 4, and the other end is connected to the lower conductive connection layer at the lower end. The same is true when the positive / negative conductive contact 4 is in the upper cover 3 in another embodiment.

[0059] Preferably, the conductive wire 5 is connected to the upper conductive connecting layer and the lower conductive connecting layer of the flexible electrostatic net 1 at the longitudinal joint position of the flexible electrostatic net 1 .

[0060] In this way, the conductive wire 5 and the longitudinal joint end faces and connection points of the flexible electrostatic net 1 can be hidden in the structural seam 21, making the overall structure beautiful while ensuring safety.

[0061] Furthermore, the cover 3 is provided with an annular groove 31 which can be inserted into the flexible electrostatic net 1, and the flexible electrostatic net 1 is inserted into the annular groove 31 and fixed by glue. The positive / negative conductive contacts 4 are arranged at both radial ends of the annular groove 31, and the conductive wire 5 is arranged in the annular groove 31, which can achieve beauty while ensuring safety.

[0062] In this embodiment, the positive / negative conductive contacts 4 are arranged at the bottom, and can also be arranged at the top according to the actual application. In this way, the arrangement of the positive / negative conductive contacts 4 can be conveniently connected to the entire high-efficiency air purification device for power supply.

[0063] As mentioned above, this case protects an air purification device, and all technical solutions that are the same or similar to this case should be shown to fall within the scope of protection of this case.

Claims

1. A high efficiency air purification device, characterized in that It comprises a first-stage purification cylinder (100) and a second-stage purification cylinder (200) which are arranged in series, wherein the outer peripheries of the first-stage purification cylinder (100) and the second-stage purification cylinder (200) are provided with an outer peripheral cylinder (300); The first-stage purification cylinder (100) comprises a plurality of air inlets (110) arranged around the outer peripheral cylinder (300) and a first cylindrical filter screen (120) inserted into the inner part of the outer peripheral cylinder (300), and air enters from the air inlets (110) and passes through the first cylindrical filter screen (120); The second-stage purification cylinder (200) comprises a hollow air intake ring (210) arranged on one side of the first-stage purification cylinder (100), a second cylindrical filter screen (220) which is inserted into the outer peripheral cylinder (300) and whose inner ring is in communication with the inner ring of the air intake ring (210), and a ventilation ring channel (330) is formed between the outer periphery of the second cylindrical filter screen (220) and the outer peripheral cylinder (300); A diverter column (270) with high voltage electricity is provided at the upper end of the second cylindrical filter screen (220).

2. A high efficiency air purification device as claimed in claim 1, characterized in that The diverter column (270) is an inverted cone that penetrates the inner ring of the second cylindrical filter screen (220) from top to bottom.

3. A high-efficiency air purification device as claimed in claim 1, characterized in that The second-stage purification cylinder (200) further comprises a hollow second support plate (230) arranged at the upper end of the second cylindrical filter screen (220), and a diverter plate (240) arranged between the second support plate (230) and the second cylindrical filter screen (220) and in contact with the inner wall of the outer peripheral cylinder (300).

4. A high efficiency air purification device as claimed in claim 3, characterized in that The diverter plate (240) is attached to the top of the second cylindrical filter screen (220) and is provided with a plurality of diverter holes (241) along the outer circumference, and at least a portion of the diverter holes (241) is communicated with the ventilation annular channel (330).

5. A high-efficiency air purification device as claimed in claim 3, characterized in that The first-stage purification cylinder (100) further comprises a hollow first support plate (130) and a bottom shell (140) disposed between the first cylindrical filter screen (120) and the second-stage purification cylinder (200); the first cylindrical filter screen (120) is in communication with the air inlet (110); A fan (400) is provided on both the first support plate (130) and the second support plate (230).

6. A high-efficiency air purification device as claimed in claim 5, characterized in that It also includes a hollow fourth support plate (260) arranged on the upper end of the fan (400) on the upper part of the second support plate (230) and a plurality of second negative ion generators (520) arranged on the upper end of the fourth support plate (260).

7. A high-efficiency air purification device as claimed in claim 1, characterized in that The peripheral cylinder (300) is an integral body that penetrates the first-stage purification cylinder (100) and the second-stage purification cylinder (200), or a combination of the first-stage purification cylinder (100) and the second-stage purification cylinder (200), respectively.

8. A high-efficiency air purification device as claimed in claim 7, characterized in that It also includes a top cover (340) disposed on the top of the outer peripheral tube (300) and provided with a plurality of air outlets (341).

9. A high-efficiency air purification device according to any one of claims 1 to 8, characterized in that The upper end or the lower end of the first cylindrical filter screen (120) and the second cylindrical filter screen (220) are provided with positive / negative conductive contacts (4).

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