A bipolar charge coagulation and air purification device

Abstract

The present invention discloses a bipolar charged coagulation air purification device, comprising: a casing, the casing is provided with an air inlet and an air outlet that are interconnected; a bipolar charged coagulation mechanism, comprising a first charged component, a first filter, a second charged component, a coagulation element and a second filter arranged in the casing in sequence along the airflow direction, and the first charged component and the second charged component are symmetrically arranged with the axis of the casing as the symmetry axis; an airflow driving component, arranged in the casing, for driving air to pass through the air inlet, the bipolar charged coagulation mechanism and the air outlet in sequence. The present invention helps to solve the problem that existing air purification devices on the market that adopt the principle of mechanical filtration are difficult to remove PM from the air. 2.5 , the air purification device using the traditional electrostatic dust removal principle can remove PM 2.5 , but the removal effect is not good.

Description

Technical Field

[0001] The invention relates to the technical field of air purification devices, in particular to a bipolar charged coagulation air purification device. Background Art

[0002] PM 2.5 PM refers to particles with an aerodynamic equivalent diameter of less than or equal to 2.5 microns in the ambient air. It can remain suspended in the air for a long time. The higher the concentration in the air, the more serious the air pollution. Compared with coarser atmospheric particles, PM 2.5 Small particle size, large area, strong activity, easy to carry toxic and harmful substances and stay in the atmosphere for a long time, easy to be inhaled by the human body, long-term inhalation by the human body can easily lead to cardiopulmonary diseases, so a method is needed to remove PM 2.5 Air purification device.

[0003] However, among the existing air purification devices, the air purification devices using the mechanical filtration principle are difficult to remove PM in the air. 2.5 , the air purification device using the traditional electrostatic dust removal principle can remove PM 2.5 , but the removal effect is not good. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for removing PM 2.5 A bipolar electrocoagulation and air purification device with good effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a bipolar charged coagulation and air purification device, comprising:

[0006] A casing, wherein the casing is provided with an air inlet and an air outlet that are interconnected;

[0007] A bipolar charging and coagulating mechanism, comprising a first charging component, a first filter, a second charging component, a coagulating element and a second filter arranged in the housing in sequence along the airflow direction, wherein the first charging component and the second charging component are symmetrically arranged with the axis of the housing as the symmetry axis, the first charging component and the second charging component are used to charge the air containing dust particles in batches and agglomerate the particles after the primary charge, the coagulating element is used to agglomerate the particles after the secondary charge, and the first filter and the second filter are used to filter the particles agglomerated after the primary charge and the secondary charge respectively;

[0008] An airflow driving component is arranged in the housing and is used to drive air to pass through the air inlet, the bipolar charged coagulation mechanism and the air outlet in sequence.

[0009] Furthermore, the first charging component and the second charging component have the same structure, and both include a corona electrode, a bottom plate, a partition, a metal hollow tube, and at least one induction electrode;

[0010] The bottom plate is arranged in the casing, a plurality of mesh holes are formed on the metal hollow tube, and the metal hollow tube is connected to the bottom plate, the partition is vertically arranged on a side of the bottom plate corresponding to the metal hollow tube, and the partition is located on the axis of the casing, the corona electrode and the induction electrode are respectively arranged on both sides of the partition, and the induction electrode is arranged on a side corresponding to the position of the metal hollow tube.

[0011] Furthermore, the corona electrode and the induction electrode both adopt an annular structure, and the induction electrode is sleeved on the outside of the metal hollow tube and has the same axis as the metal hollow tube.

[0012] Furthermore, the corona electrode is also provided with thorns.

[0013] Furthermore, the metal hollow tube is in a truncated cone shape, and the side with a larger diameter of the metal hollow tube is an air flow inlet.

[0014] Furthermore, the condensing element is a spoiler net.

[0015] Furthermore, the airflow driving component adopts two centrifugal fans, and the two centrifugal fans are respectively arranged at the positions of the air inlet and the air outlet of the casing corresponding to each other.

[0016] Furthermore, it also includes two sensors respectively arranged at the positions of the air inlet and the air outlet of the casing, and a digital display module arranged on the casing for displaying the concentration of fine particulate matter.

[0017] Furthermore, it also includes a power supply compartment arranged on the casing, and a power supply for power supply and a boost module for boosting voltage are arranged in the power supply compartment.

[0018] Furthermore, the housing, the partition and the spoiler net are all made of insulating materials.

[0019] The beneficial effects of the present invention are embodied in:

[0020] The bipolar charged coagulation air purification device of the present invention is provided with an organic shell, a bipolar charged coagulation mechanism and an airflow driving component. The bipolar charged coagulation mechanism comprises a first charged component, a first filter screen, a second charged component, a coagulation member and a second filter screen. When PM 2.5After the air passes through the airflow driving component and enters the casing and the bipolar charging condensation mechanism from the air inlet, it is first charged by the first charging component to obtain positive and negative charges. Due to the positional relationship between the first charging component and the second charging component, a turbulence effect is achieved. In the process of the air with positive and negative charges entering the second charging component, the positive and negative charges are agglomerated, and particles with larger particle sizes are filtered out by the first filter screen, and then the second charging component is charged again to repeatedly obtain positive and negative charges, and is further agglomerated by the spoiler and filtered out by the second filter screen, and finally discharged from the air outlet. The present invention removes PM by particle agglomeration and filtration 2.5 The removal effect is enhanced through two particle agglomeration and two filtration processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the bipolar charged coagulation and air purification device of the present invention;

[0022] Figure 2 It is a partial cross-sectional view of the structure of the bipolar charged coagulation and air purification device of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the first charging component of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the power supply compartment of the present invention.

[0025] The components in the accompanying drawings are marked as follows: 1. Casing; 101. Air inlet; 102. Air outlet; 2. First charged component; 201. Corona electrode; 2011. Barr; 202. Bottom plate; 203. Partition; 204. Metal hollow tube; 2041. Mesh; 205. Induction electrode; 3. First filter; 4. Second charged component; 5. Coagulation element; 6. Second filter; 7. Airflow drive component; 701. Centrifugal fan; 8. Sensor; 9. Digital display module; 10. Power supply compartment; 11. Power supply; 12. Boost module. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] See also Figures 1 to 4 .

[0030] The bipolar charged coagulation and air purification device of the present invention comprises: a housing 1, wherein the housing 1 is provided with an air inlet 101 and an air outlet 102 which are interconnected;

[0031] A bipolar charging and coagulating mechanism, comprising a first charging component 2, a first filter 3, a second charging component 4, a coagulating element 5 and a second filter 6 arranged in sequence in the housing 1 along the airflow direction, and the first charging component 2 and the second charging component 4 are symmetrically arranged with the axis of the housing 1 as the symmetry axis, the first charging component 2 and the second charging component 4 are used to charge the air containing dust particles in batches and agglomerate the particles after the primary charge, the coagulating element 5 is used to agglomerate the particles after the secondary charge, and the first filter 3 and the second filter 6 are used to filter the particles agglomerated after the primary charge and the secondary charge respectively;

[0032] The airflow driving component 7 is disposed in the housing 1 and is used to drive the air to pass through the air inlet 101 , the bipolar charged coagulation mechanism and the air outlet 102 in sequence.

[0033] The bipolar charged coagulation air purification device of the present invention is provided with an organic shell 1, a bipolar charged coagulation mechanism and an airflow driving component 7. The bipolar charged coagulation mechanism comprises a first charged component 2, a first filter screen 3, a second charged component 4, a coagulation member 5 and a second filter screen 6. When the PM 2.5After the air passes through the airflow driving component 7 and enters the housing 1 and the bipolar charging condensation mechanism from the air inlet 101, it is first charged by the first charging component 2 to obtain positive and negative charges. Due to the positional relationship between the first charging component 2 and the second charging component 4, a turbulent flow effect is achieved. In the process of the air with positive and negative charges entering the second charging component 4, the positive and negative charges are agglomerated, and the particles with larger particle sizes are filtered and removed by the first filter 3. Then, the air is charged again by the second charging component 4 to repeatedly obtain positive and negative charges, and is further agglomerated by the condensation element 5 and filtered out by the second filter 6, and finally discharged from the air outlet 102. The present invention removes PM by particle agglomeration and filtration. 2.5 The removal effect is enhanced by two particle agglomeration and two filtration processes. At the same time, the present invention can also achieve the removal effect of other particle dusts;

[0034] And in the present invention, the axis is Figure 2 As shown in the dotted line segment A, a plurality of first filter screens 3 and a plurality of second filter screens 6 can be respectively provided, and the casing 1 is provided in a hollow cylindrical shape. The air inlet 101 is located at the bottom of the casing 1 and is composed of a plurality of through holes. The air outlet 102 is located at the top of the casing 1, and a fence is provided at the position of the casing 1 corresponding to the air outlet 102, which neither blocks the exhaust of air nor protects the interior of the casing 1.

[0035] In one embodiment, the first charging component 2 and the second charging component 4 have the same structure, and both include a corona electrode 201, a bottom plate 202, a partition 203, a metal hollow tube 204, and at least one induction electrode 205;

[0036] The bottom plate 202 is arranged in the housing 1, a plurality of mesh holes 2041 are provided on the metal hollow tube 204, and the metal hollow tube 204 is connected to the bottom plate 202, the partition 203 is vertically arranged on the side of the bottom plate 202 corresponding to the metal hollow tube 204, and the partition 203 is located on the axis of the housing 1, the corona electrode 201 and the induction electrode 205 are respectively arranged on both sides of the partition 203, and the induction electrode 205 is arranged on the side corresponding to the position of the metal hollow tube 204. In this embodiment, there are two induction electrodes 205, the bottom plate 202 is a semicircular plate structure, and when the bottom plate 202 is installed in the housing 1, its curved side is in contact with the inner wall of the housing 1, and the straight side is located on the axis of the housing 1, and the partition 203 separates the corona electrode 201 and the induction electrode 205 in two spaces;

[0037] In this design, when passing through the first charged component 2 and the second charged component 4: the air is first diverted by the partition 203, and a part of the air flows through the side of the corona electrode 201. At this time, the space where the corona electrode 201 is located, the corona electrode 201 distributes negative ions in the space through corona discharge, and the particulate matter in the airflow flowing through the space is negatively charged. The other part of the air flows through the bottom of the bottom plate 202 and passes through the metal hollow tube 204 and the mesh 2041. At this time, the space where the induction electrode 205 is located, the induction electrode 205 is negatively charged, and the metal hollow tube 204 is positively charged due to electrostatic induction, so that the particulate matter in the airflow flowing through the metal hollow tube 204 is positively charged. The air intake volume on the side of the induction electrode 205 in the charging component 4 is smaller than that on the side of the corona electrode 201, and is affected by the positional relationship characteristics of the first charging component 2 and the second charging component 4, that is, the first charging component 2 and the second charging component 4 each have a pair of induction electrodes 205, and the two pairs of induction electrodes 205 are arranged diagonally along the airflow direction in the casing 1. In the process of the airflow entering from the first charging component 2 to the second charging component 4, it will be affected by the turbulence, so that the particles after passing through the first charging component 2 are initially agglomerated, and the entire charging process can be achieved through a single polarity power supply. Compared with the traditional bipolar charging, which requires two external high-voltage power supplies with different polarities, the volume and complexity of the charging components are reduced.

[0038] In one embodiment, the corona electrode 201 and the induction electrode 205 are both annular structures, and the induction electrode 205 is sleeved outside the metal hollow tube 204 and has the same axis as the metal hollow tube 204. This design can enhance the charging effect of the corona electrode 201 and the induction electrode 205.

[0039] In one embodiment, the corona electrode 201 is further provided with thorns 2011. With such a design, the corona electrode 201 is a thorn corona ring structure, which has excellent discharge characteristics and enhances the discharge effect.

[0040] In one embodiment, the metal hollow tube 204 is in a truncated cone shape, and the side with a larger diameter of the metal hollow tube 204 is an airflow inlet. In this design, the cross-sectional area of ​​the truncated cone decreases along the airflow direction, which facilitates increasing the induced charge of the particles.

[0041] In one embodiment, the agglomeration element 5 is a spoiler net. In this embodiment, the spoiler net is a spoiler net with a diamond mesh structure. This design can enhance the turbulence of the airflow when it passes through the section, thereby increasing the collision probability between charged particles, improving the agglomeration efficiency, and agglomerating the particles.

[0042] In one embodiment, the airflow driving assembly 7 uses two centrifugal fans 701, and the two centrifugal fans 701 are respectively arranged at the positions of the air inlet 101 and the air outlet 102 of the housing 1. In this design, negative pressure is provided by the two centrifugal fans 701, which facilitates the airflow to flow inside and outside the housing 1.

[0043] In one embodiment, two sensors 8 are respectively arranged at the positions of the air inlet 101 and the air outlet 102 of the housing 1, and a digital display module 9 for displaying the concentration of fine particles is arranged on the housing 1. With such a design, in the specific use stage, a limit value can be set for the sensors 8 located at the positions of the air inlet 101 and the air outlet 102, and when the concentration of external particles is detected to be greater than the limit value, the air flow drive component 7 is started to achieve the air purification effect, and when the concentration of external particles is detected to be less than or equal to the limit value, the air flow drive component 7 is turned off, and the set digital display module 9 can output the particle concentration data at the same time through the control of the single-chip microcomputer.

[0044] In one embodiment, it further includes a power supply compartment 10 disposed on the housing 1, wherein a power supply 11 for power supply and a boost module 12 for boosting are disposed in the power supply compartment 10. In this embodiment, the power supply compartment 10 is embedded in the housing 1, and the power supply 11 disposed therein is composed of a storage battery with an output voltage of 12V. The output end of the power supply 11 is connected to the input end of the boost module 12, and the voltage is converted and boosted to an output voltage of more than 10kV to supply power to the first charging component 2 and the second charging component 4.

[0045] In one embodiment, the housing 1, the partition 203 and the spoiler net are all made of insulating materials. This design uses insulating materials to avoid conductive effects on charging.

[0046] In one embodiment, the housing 1 is formed by segmented splicing, which facilitates the disassembly of the housing 1 and the installation of the internal components.

[0047] The specific working process of the present invention is as follows: the sensor 8 sets a limit value, and when it is detected that the particle concentration is greater than the limit value, the centrifugal fan 701 is started to draw the airflow through the air inlet 101 of the casing 1 into the device, and at the same time, the boost module 12 in the power supply compartment 10 starts to boost the voltage to charge the induction electrode 205 and the corona electrode 201; the inlet airflow is divided into two airflows by the partition 203, and charged once: on one side of the corona electrode 201, corona discharge occurs, and negative ions are distributed in space, so that the particles in the passing airflow are negatively charged; on one side of the induction electrode 205, the electrode is negatively charged, and the metal hollow tube 204 is subjected to electrostatic induction, The positive charge makes the particles entering the air flow positively charged, and under the influence of the moisture carried, the ability of the particles to carry positive charge is improved, and the agglomeration efficiency of the negatively charged particles is increased accordingly. The two airflows are initially mixed and agglomerated, and the particles with larger particle sizes are filtered out by the first filter 3; the filtered airflow repeats the above process for secondary charging, and is further agglomerated by the spoiler net and then filtered out by the filter; the sensor 8 monitors the outlet particle concentration, and the digital display module 9 outputs the concentration data. When the particle concentration is detected to be less than the set value, the boost module 12 stops boosting and turns off the centrifugal fan 701, and repeats the above steps vice versa.

[0048] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bipolar charged coagulation and air purification device, characterized in that: include: A casing (1), wherein the casing (1) is provided with an air inlet (101) and an air outlet (102) which are interconnected; A bipolar charging and condensing mechanism, comprising a first charging component (2), a first filter (3), a second charging component (4), a condensing element (5) and a second filter (6) arranged in sequence in the housing (1) along the airflow direction, wherein the first charging component (2) and the second charging component (4) are symmetrically arranged with the axis of the housing (1) as the symmetry axis, the first charging component (2) and the second charging component (4) are used to charge the air containing dust particles in batches and to agglomerate the particles after the primary charging, the condensing element (5) is used to agglomerate the particles after the secondary charging, and the first filter (3) and the second filter (6) are used to filter the particles agglomerated after the primary charging and the secondary charging respectively; An airflow driving component (7) is arranged in the housing (1) and is used to drive air to sequentially pass through the air inlet (101), the bipolar charge coagulation mechanism and the air outlet (102); The first charging component (2) and the second charging component (4) have the same structure, both comprising a corona electrode (201), a bottom plate (202), a partition (203), a metal hollow tube (204), and a pair of sensing electrodes (205), and the two pairs of sensing electrodes (205) are arranged diagonally in the housing (1) along the airflow direction; The bottom plate (202) is arranged in the housing (1); a plurality of mesh holes (2041) are provided on the metal hollow tube (204), and the metal hollow tube (204) is connected to the bottom plate (202); the partition plate (203) is vertically arranged on a side of the bottom plate (202) corresponding to the metal hollow tube (204), and the partition plate (203) is located on the axis of the housing (1); the corona electrode (201) and the induction electrode (205) are respectively arranged on both sides of the partition plate (203), and the induction electrode (205) is arranged on a side corresponding to the position of the metal hollow tube (204); The corona electrode (201) and the induction electrode (205) both adopt an annular structure, and the induction electrode (205) is sleeved on the outside of the metal hollow tube (204) and has the same axis as the metal hollow tube (204); The metal hollow tube (204) is in the shape of a truncated cone, and the side with a larger diameter of the metal hollow tube (204) is an air flow inlet.

2. The bipolar charged coagulation and air purification device according to claim 1, characterized in that: The corona electrode (201) is also provided with thorns (2011).

3. The bipolar charged coagulation and air purification device according to claim 1, characterized in that: The condensing element (5) is a spoiler net.

4. The bipolar electrocoagulation and air purification device according to any one of claims 1 to 3, characterized in that: The airflow driving component (7) uses two centrifugal fans (701), and the two centrifugal fans (701) are respectively arranged at positions corresponding to the air inlet (101) and the air outlet (102) of the casing (1).

5. The bipolar electrocoagulation and air purification device according to any one of claims 1 to 3, characterized in that: It also includes two sensors (8) respectively arranged at positions of the housing (1) corresponding to the air inlet (101) and the air outlet (102), and a digital display module (9) arranged on the housing (1) for displaying the concentration of fine particulate matter.

6. The bipolar electrocoagulation and air purification device according to any one of claims 1 to 3, characterized in that: It also comprises a power supply compartment (10) arranged on the housing (1), wherein a power supply (11) for supplying power and a boost module (12) for boosting voltage are arranged in the power supply compartment (10).

7. The bipolar charged coagulation and air purification device according to claim 4, characterized in that: The housing (1), the partition (203) and the spoiler net are all made of insulating material.

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