KR102589978B1 - Electrostatic precipitator - Google Patents

Abstract

An electric dust collection device is disclosed for removing particles including fine dust and microorganisms such as viruses and bacteria floating in a predetermined space.
This disclosed electric dust collector includes a charging unit that charges particles, and a dust collecting unit that collects the charged particles in the charging unit.
The dust collection unit includes a first dust collection electrode to which a first dust collection voltage is applied; a second dust collection electrode to which a second dust collection voltage is applied such that a voltage difference with the first dust collection electrode occurs; a dielectric spacer that separates the first dust collection electrode and the second dust collection electrode from each other to form a space through which air can move, and serves as a dielectric so that the first and second dust collection electrodes perform a capacitor function; It includes a control unit that controls the voltage difference (Vdc) between the first dust collection electrode and the second dust collection electrode.
Therefore, particles can be collected in at least one of the first and second dust collection electrodes, and the possibility that charged microorganisms are killed by collision with the dust collection plate and electrical discharge during the collection process can be increased.

Description

Electrostatic precipitator {ELECTROSTATIC PRECIPITATOR}

The present invention relates to an electric dust collector, and more specifically, to an electric dust collector capable of killing viruses and bacteria while increasing the dust collection efficiency of dust contained in the air.

Generally, indoor air contains harmful microorganisms such as fine dust, viruses, and bacteria. When people are exposed to these substances, various diseases, including respiratory and lung diseases, can occur. Therefore, electric dust collectors are widely used as a means to remove fine dust contained in indoor air.

An electrostatic precipitator is a device that charges particulate pollutants such as fine dust by a strong electric field and then moves and collects the charged pollutants. This electrostatic precipitator requires not only a means to remove harmful microorganisms but also an optimized design of spacers installed between electrodes to increase dust collection efficiency.

Patent Document 1 discloses an electrostatic precipitator having a light irradiation sterilization function. This disclosed electric dust collection device includes a dust collection unit and a light irradiation unit, and collects particulate contaminants including harmful microorganisms contained in the air by an electrical method, and sterilizes the collected harmful microorganisms through light irradiation.

This disclosed electrostatic precipitator has a separate light irradiation unit to sterilize harmful microorganisms by irradiating light to particulate matter, but has the disadvantage of having to be provided with a separate light irradiation unit to irradiate ultraviolet light.

Patent Document 2 discloses an air purification device that collects and removes fine particles, including microorganisms, floating in the air. This disclosed device includes an ion generator that generates ions by applying a voltage. Ions generated from this ion generator collide with fine particles, and through this collision, microorganisms are eliminated. The air purification device configured in this way has the disadvantage of having to be equipped with a separate ion generator to remove microorganisms.

Publication Patent 10-2016-0134069 (Publication Date: 2016.11.23.) Registered Patent 10-1569629 (Announcement Date: 2015.11.17.)

The present invention was created in consideration of the above-described problems, and its purpose is to provide an electrostatic precipitator capable of removing fine dust and harmful microorganisms such as viruses and cells without a light irradiation unit or ion generator.

Another object of the present invention is to provide an electric dust collection device that can increase the wind volume of the dust collection unit and increase dust collection efficiency by improving the structure of the spacer.

In order to achieve the above object, the present invention is to remove particles including fine dust and microorganisms such as viruses and bacteria floating in a predetermined space, and includes a charging unit for charging the particles, and charging in the charging unit. An electric dust collector including a dust collection unit that collects the particles, wherein the dust collection unit includes a first dust collection electrode to which a first dust collection voltage is applied; a second dust collection electrode to which a second dust collection voltage is applied to generate a voltage difference with the first dust collection electrode; a dielectric spacer that separates the first dust collection electrode and the second dust collection electrode from each other to form a space in which air can move, and serves as a dielectric so that the first and second dust collection electrodes perform a capacitor function; Including a control unit that controls a voltage difference (Vdc) between the first dust collection electrode and the second dust collection electrode, so that the particles are collected in at least one of the first and second dust collection electrodes, During the collection process, the possibility of the charged microorganisms being killed by collision with the dust collection plate and electrical discharge can be increased.

Here, each of the first and second dust collection electrodes includes a base plate made of an insulating film; It may include a conductive layer attached to at least one side of the base plate.

In addition, the present invention includes an antibacterial coating layer formed on the conductive layer, and can improve sterilization and sterilization performance for the particles collected on the conductive layer. Here, the antibacterial coating layer may be made of at least one metal material selected from metals including copper (Cu), zinc (Zn), and silver (Ag).

The control unit may control the applied voltage so that the voltage difference (Vdc) between the first dust collection electrode and the second dust collection electrode satisfies a value in the range of 10 to 20 [kV]. Here, the second dust collection electrode is grounded, and a voltage Vdc value can be applied to the first dust collection electrode.

The dielectric spacer has a structure in which a predetermined pattern is repeatedly formed at a predetermined pitch (P2), and may include a first spacer portion and a second spacer portion that are differentiated according to their installation positions.

Here, the first spacer part has one surface in contact with the first dust collection electrode, and the other surface faces the second dust collection electrode while remaining spaced apart, and is formed in a structure that is repeated at predetermined intervals. , a first air passing space (SP1) can be formed between the second dust collection electrode.

The second spacer part is formed integrally with the first spacer part between the first spacer parts, one surface of which is formed in contact with the second dust collection electrode, and the other surface is formed at a predetermined distance from the first dust collection electrode. By being placed facing each other in a spaced-apart state, a second air passage space SP2 can be formed between the first dust collection electrode 310 and the first dust collection electrode 310. Additionally, the volume of the first air passage space (SP1) and the volume of the second air passage space (SP2) may be formed differently.

When comparing the area (first area) of the first spacer portion facing the second dust collection electrode and the area (second area) of the second spacer portion facing the first dust collection electrode, the second area It can be formed to be more than three times larger than this first area.

The height (H2) of the dielectric spacer may be set to 1.2 mm or less, and the pitch (P2) may be set to 7.0 mm or less.

Additionally, the first dust collection electrode, the second dust collection electrode, and the dielectric spacer may be rolled in a roll shape.

The electric dust collector according to the present invention controls the voltage difference (Vdc) through a control unit that controls the voltage difference (Vdc) between the first dust collection electrode and the second dust collection electrode. Accordingly, the microorganisms contained in the particles are charged, and the charged microorganisms (viruses, cells) collide with the dust collection electrode and can be killed by electrical discharge.

In addition, the present invention further includes an antibacterial coating layer on the first and/or second dust collection electrode, so that particles that are not killed in the collection process by voltage difference (Vdc) can be killed secondarily.

Additionally, the electric dust collector according to the present invention can improve dust collection performance and increase wind volume by improving the shape and arrangement structure of the dielectric spacer.

1 is a schematic diagram showing an electric dust collection device according to an embodiment of the present invention.
Figure 2 is a view showing the dust collection part of the electric dust collection device according to an embodiment of the present invention separated.
FIG. 3 is a schematic cross-sectional view showing the arrangement of a first dust collection electrode, a second dust collection electrode, and a dielectric spacer according to an example of the dust collection unit shown in FIG. 2.
FIG. 4A is a schematic cross-sectional view showing the shape of an example of the dielectric spacer of FIG. 3. FIG. 4B is a schematic cross-sectional view showing the shape of another example of the dielectric spacer of FIG. 3.
Figure 5 is a diagram illustrating a partial configuration of a dust collection unit of an electric dust collector according to an embodiment of the present invention and the principle of collecting and killing particles including viruses and bacteria.
Figures 6 to 8 are graphs showing the floating bacteria dust collection power, surface sterilization power, and total sterilization power according to changes in the applied voltage (Vdc) of the dust collection unit.
Figure 9 is a schematic cross-sectional view showing the arrangement of a first dust collection electrode, a second dust collection electrode, and a dielectric spacer according to another example of a dust collection part of an electric dust collector according to an embodiment of the present invention.
10 and 11 are perspective views each showing an example of the installation of a dust collection unit of an electric dust collection device according to an embodiment of the present invention.
Figure 12 is a schematic perspective view showing the overall arrangement structure of the electric dust collector according to an embodiment of the present invention in isolation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted, and the same reference numerals are used for identical or similar components throughout the specification.

Figure 1 shows an electric dust collection device according to an embodiment of the present invention. Referring to Figure 1, the electrostatic precipitator according to the present invention is for removing fine dust floating in a predetermined space such as an indoor space and harmful particles including microorganisms such as viruses and bacteria, and includes a charging unit that charges the particles. It includes (100) and a dust collection unit (300) that collects the particles charged in the charging unit (100). Here, microorganisms such as viruses and bacteria can attach to floating fine dust and reproduce. Therefore, when collecting fine dust, microorganisms can also be collected.

Figure 2 is a view showing the dust collection part of the electrostatic precipitator according to an embodiment of the present invention separated, and Figure 3 shows a partial configuration of the dust collection part of the electrostatic precipitator according to an embodiment of the present invention and the collection and control of particles including viruses and bacteria. This is a drawing to explain the principle of death. In addition, FIGS. 4 and 5 are schematic cross-sectional views showing the arrangement of the first dust collection electrode, the second dust collection electrode, and the dielectric spacer according to one example and another example of the dust collection unit shown in FIG. 2.

Referring to FIGS. 2 to 5 , the dust collection unit 300 includes a first dust collection electrode 310, a second dust collection electrode 330, a dielectric spacer 350, and a control unit 370.

The first and second dust collection electrodes 310 and 330 may be made of metal plates of a predetermined thickness. For example, each of the first and second dust collection electrodes 310 and 330 may be made of a 0.1 mm thick copper plate for antibacterial performance.

A first dust collection voltage is applied to the first dust collection electrode 310, and a second dust collection voltage is applied to the second dust collection electrode 330 to generate a voltage difference with the first dust collection electrode 310. For example, one of the first dust collection electrode 310 and the second dust collection electrode 330 may have a positive voltage, and the other may be grounded or have a negative voltage. The first dust collection electrode 310 and the second dust collection electrode 330 can perform the function of a capacitor, and apply attractive and repulsive forces to the fine dust according to the polarity of the charged fine dust to remove the charged fine dust. Dust is collected by sticking to the first dust collection electrode 310 and the second dust collection electrode 330. The principle of killing microorganisms using the first and second dust collection electrodes 310 and 330 will be described later.

The dielectric spacer 350 is disposed between the first dust collection electrode 310 and the second dust collection electrode 330 to space the first dust collection electrode 310 and the second dust collection electrode 330 to create a space through which air can move. form Additionally, the dielectric spacer 350 serves as a dielectric so that the first and second dust collection electrodes 310 and 330 perform a capacitor function. In this way, the dust collection function can be performed smoothly because the dielectric spacer 350 acts as a dielectric and maintains the gap between the first dust collection electrode 310 and the second dust collection electrode 330.

As shown in FIG. 3, the dielectric spacer 350 is arranged to contact both sides of the first dust collection electrode 310, and the dielectric spacer 350 is arranged to contact both sides of the second dust collection electrode 330. It can be. Accordingly, the first dust collection electrode 310, the dielectric spacer 350, the second dust collection electrode 330, the dielectric spacer 350, the first dust collection electrode 310, . Can be arranged in order.

In this way, since the dielectric spacer 350 contacts both surfaces of the first dust collection electrode 310 and the second dust collection electrode 330, the volume of the dust collection unit 300 can be reduced. Meanwhile, the width of the dielectric spacer 350 may be 3/4 times or more and 3/2 times or less the widths of the first dust collection electrode 310 and the second dust collection electrode 330. If the width of the dielectric spacer 350 is smaller than 3/4 times the width of the first dust collection electrode 310 and the width of the second dust collection electrode 330, dust collection may not be performed smoothly due to dielectric constant. In addition, if the width of the dielectric spacer 350 is larger than 3/2 times the width of the first dust collection electrode 310 and the width of the second dust collection electrode 330, the volume of the dust collection case 500 of FIG. 1 may become excessively large. there is.

Meanwhile, the dielectric spacer 350 includes a protrusion that protrudes toward at least one of the first dust collection electrode 310 and the second dust collection electrode 330, thereby forming a space and acting as a dielectric. Also, as shown in FIG. 3, each of the first dust collection electrode 310 and the second dust collection electrode 330 is attached to a base plate 341 made of an insulating film and at least one side of the base plate 341. It may include a formed conductive layer 343.

Here, the base plate 341 may be made of a flexible material such as PET (polyethylene phthalate) resin. Attachment of the conductive layer 343 may be implemented by attaching a conductive sheet using a conductive adhesive or depositing a conductive material on both sides of the base plate 341. Since the conductive layer 343 is formed on both sides of the base plate 341, the first dust collection electrode 310, the dielectric spacer 350, the second dust collection electrode 330, the dielectric spacer 350, and the second dust collection electrode 310 are formed on both sides of the base plate 341. 1 Dust collection electrode (310), … Can be arranged in order.

The dielectric spacers 350 and 350' are positioned to form a space between the first dust collection electrode 310 and the second dust collection electrode 330, thereby forming a space between the first dust collection electrode 310 and the second dust collection electrode 330. Separate them by a certain distance. In this case, air passes at a predetermined speed through the space formed by the dielectric spacer 350. Here, harmful particles contained in the air are collected in the first and/or second dust collection electrodes 310 and 330. To this end, the dielectric spacer 350 may be formed in a predetermined cross-sectional shape as shown in FIGS. 4A and 4B.

FIG. 4A is a schematic cross-sectional view showing the shape of an example of the dielectric spacer of FIG. 3.

Referring to FIGS. 3 and 4A, the dielectric spacer 350 has a structure formed by bending a plate-shaped dielectric into a wrinkle shape, and the first dust collection electrode 310 and the second dust collection electrode 330 are spaced apart by a height of H1. Make it possible. The cross-sectional shape of the dielectric spacer 350 may be formed as a predetermined waveform, that is, a sinusoidal shape. That is, the dielectric spacer may be formed in a structure in which the peaks 351 and valleys 355 are repeatedly formed at a predetermined pitch (P1). Here, the pitch (P1) and height (H1) are designed considering dust collection performance. The results of testing dust collection performance and air volume using the dielectric spacer 350 manufactured in this way are shown in Table 1 below. Table 1 shows the results of a test conducted under conditions where the pitch (P1) was 7 mm, the height (H1) was 1 mm, and the size of harmful particles was 0.3 μm or more. Here, the measured air volume without a dust collector, that is, at no load, is 90 CMH.

When the dielectric spacer 350 is designed with the structure shown in FIG. 4A and the dust collection part is formed and used in the form of a flat plate, the space between the first dust collection electrode 310 and the dielectric spacer 350 (first air passing space) The space (second air passage space) between the second dust collection electrode 330 and the dielectric spacer 350 has substantially the same volume. Therefore, the air flowing between the first dust collection electrode 310 and the second dust collection electrode 330 is divided into two spaces and passes through them. In this case, the air resistance in each of the two spaces is substantially the same. On the other hand, when the dust collector is manufactured in a rolling structure, the force to withstand pressure is relatively weak, as will be described later. Accordingly, when forming a dust collection unit with a rolling structure, the first air passage space and the second air passage space are not formed uniformly. As a result, air does not pass evenly, and a lot of air flows in toward the wide gap, which reduces dust collection performance. It can be.

FIG. 4B is a schematic cross-sectional view showing the shape of another example of the dielectric spacer of FIG. 3.

Referring to FIG. 4B, the dielectric spacer 350' is the same as the dielectric spacer 350 shown in FIG. 4A in that it has a structure formed by bending a plate-shaped dielectric material into a wrinkle shape. Meanwhile, in this embodiment, the first dust collection electrode 310 and the second dust collection electrode 330 are spaced apart by a height of H2, and the cross-sectional shape of the dielectric spacer 350' is changed to have a vertically asymmetric structure. It is distinguished from the dielectric spacer 350 according to .

When applying the dielectric spacer 350' according to this embodiment, the space between the first dust collection electrode 310 and the dielectric spacer 350' is the space between the dielectric spacer 350' and the second dust collection electrode 330. It can have a large volume compared to space.

The dielectric spacer 350' has a structure in which a predetermined pattern is repeatedly formed at a predetermined pitch (P2), and is divided into a first spacer part 351' and a second spacer part 355' according to its installation location. do. The first spacer portion 351' has a structure in which one side is in contact with the first dust collection electrode 310, and the other side faces the second dust collection electrode 330 while remaining spaced apart. This first spacer portion 351' may be formed in a structure similar to the acid 351 structure of the dielectric spacer 350 according to one example. This first spacer portion 351' has a structure that is repeated at predetermined intervals. By forming the first spacer portion 351' as described above, a first air passage space SP1 is formed between the first spacer portion 351' and the second dust collection electrode 330.

The second spacer portion 355' is formed integrally between the first spacer portions 351' and has an overall flat structure. One side of the second spacer portion 355' is in contact with the second dust collection electrode 330, and the other side is disposed to face the first dust collection electrode 310 at a predetermined distance apart. By forming the second spacer portion 351' in this way, a second air passage space SP2 is formed between the second spacer portion 355' and the first dust collection electrode 310. Here, the volumes of the first air passage space (SP1) and the second air passage space (SP2) are formed differently. For example, the area (first area) of the first spacer portion 351' facing the second dust collection electrode 330, and the second spacer portion facing the first dust collection electrode 310 ( When comparing the area (second area) of 355'), the second area can be formed to be more than three times larger than the first area. In this way, by making the second area larger than the first area and widening the exposed area of the first dust collection electrode 310 facing it, the contact area between harmful microorganisms and the first dust collection electrode 310 can be increased. Accordingly, dust collection performance and sterilization performance can be further improved.

Here, the pitch (P2) and height (H2) are designed considering dust collection performance and wind volume. The results of testing dust collection performance and air volume using the dielectric spacer 350 manufactured in this way are shown in Table 2 below. Table 2 shows the results of a test conducted under conditions where the pitch (P2) was 2.8 mm and 7.0 mm, the height (H2) was 1.0 mm, 1.2 mm, and 1.5 mm, and the size of harmful particles was 0.3 μm or more. Here, the measured air volume without a dust collector, that is, at no load, is 90 CMH.

Referring to Table 2, when comparing the dust collection performance of the dielectric spacer 350' according to this embodiment and the dielectric spacer 350 according to an example, the height (H2) of the dielectric spacer 350' is 1.2 mm. From the following, it can be seen that dust collection performance is improved. In particular, when the height (H2) is 1.0 mm, it can be seen that the dust collection performance is greatly improved to over 95%.

Also, when comparing the air volume, it can be seen that the air volume increases as the pitch (P2) becomes longer and the height (H2) increases. For example, when the pitch (P2) is 7.0 mm, the air volume exceeds 50 CMH at all heights of 1.0 mm, 1.2 mm, and 1.5 mm, showing that the air volume is improved.

Considering the above test results, the height (H2) of the dielectric spacer 350' can be set to approximately 1.2 mm or less, and the pitch (P2) can be set to approximately 7.0 mm or less.

In the case of improving the dielectric spacer 350' in this way, the volume of the second air passage space SP2 is expanded compared to the corresponding space of the dielectric spacer 350 according to an example, so the dust collection performance is improved and the first dust collection electrode The proportion of foreign substances adsorbed to (310) increases, and the air volume increases by more than 30%.

Additionally, as a result of the dielectric spacer pressure test, the holding force of the dielectric spacer increased by more than four times. The pressure test used IMADA's push-pull scale equipment, applied pressure to the spacer, and measured the force when the shape of the spacer collapsed and touched the floor. As a dielectric spacer used in the measurement, a ground dielectric spacer having the shape shown in FIGS. 4A and 4B, respectively, with a pitch of 7 mm and a height of 1 mm was used.

As a result of the test, the dielectric spacer according to FIG. 4A was measured to withstand a pressure of 2kgf and the dielectric spacer according to FIG. 4B was measured to withstand a pressure of 8kgf, and the dielectric spacer 350' according to another example was measured to withstand a pressure of 8kgf compared to the dielectric spacer 350 according to one example. It can be seen that the strength is improved by about 4 times. Therefore, when applying the dielectric spacer 350' according to another example, even if the shape of the dust collector is modified into a roll shape as shown in FIG. 10, the gap between the first dust collection electrode and the second dust collection electrode must be kept constant. It can be maintained. Therefore, the plurality of first air passing spaces SP1 can maintain a constant volume, allowing air to pass through evenly. Accordingly, dust collection performance can be improved as shown in Table 2.

Referring to FIG. 5, the control unit 370 controls the voltage difference (Vdc) between the first dust collection electrode 310 and the second dust collection electrode 330. That is, the first dust collection voltage and/or the second dust collection voltage applied to each of the first and second dust collection electrodes 310 and 330 are controlled to generate a voltage difference of Vdc. Figure 5 is configured so that the second dust collection electrode 330 is grounded and a voltage is applied to the first dust collection electrode 310 to create a voltage difference (Vdc) between the first and second dust collection electrodes 310 and 330. It shows an example. Here, the control unit 370 can control the applied voltage so that the voltage difference (Vdc) between the first and second dust collection electrodes 310 and 330 satisfies the condition of Equation 1.

<Equation 1>

10 ≤ Vdc ≤ 20 [kV]

This not only allows the particles to be collected by the second dust collection electrode 330, but also increases the possibility that the microorganisms will collide and die during the collection process.

That is, the charged particles in the charging portion include fine dust floating in a predetermined space and microorganisms such as viruses and bacteria. Here, microorganisms attach to fine dust and reproduce within a given space, such as an indoor space. Therefore, when catching dust according to the principle of electrostatic dust collection, microorganisms can also be collected.

When capturing fine dust with attached microorganisms in the dust collection unit, the dust collection or sterilizing power is determined depending on the size of the voltage difference (Vdc).

Figures 6 to 8 are graphs showing the floating bacteria dust collection power, surface sterilization power, and total sterilization power according to changes in the applied voltage (Vdc) of the dust collection unit.

Referring to FIG. 6, the airborne bacteria dust collection power collects airborne bacteria that attach to and multiply on dust, and other conditions except the applied voltage (Vdc) of the electric dust collector are the same, and the applied voltage (Vdc) is applied through the control unit. By measuring and comparing the number of bacteria at 5, 10, 15, and 20 [kV], the dust collection power (bactericidal power) (%) can be measured. Here, it can be seen that the floating bacteria collection power (bactericidal power) is 52.2%, 95.0%, 97.5%, and 99.4% at 5, 10, 15, and 20 [kV], respectively. In other words, it can be seen that the dust collection power increases rapidly in the 5 to 10 [kV] range.

Referring to Figure 7, the surface sterilizing power at the moment of dust collection represents the rate at which bacteria are killed by collision energy or electric force when they are collected in the dust collection unit. This surface sterilizing power can be obtained by comparing the number of bacteria collected in the dust collection part from the air and the number of bacteria remaining on the surface of the dust collection part. Here, since the base plate constituting the dust collection unit is made of a highly insulating insulating film, the sterilization effect by electric force can be increased.

Here, it can be seen that the surface sterilizing power is 43.5%, 62.3%, 68.9%, and 70.5% at 5, 10, 15, and 20 [kV], respectively. In other words, it can be seen that the surface sterilizing power increases rapidly in the range from 5 to 10 [kV].

Referring to FIG. 8, the total sterilizing power of the dust collector represents the proportion of floating bacteria in the air killed by the dust collector, and can be expressed as the product of the dust collecting power of floating bacteria and the surface sterilizing power. That is, it can be seen that the total sterilizing power is 22.71%, 59.19%, 67.18%, and 70.08% at 5, 10, 15, and 20 [kV], respectively. In other words, at a relatively low applied voltage of 5 [kV], most of the microorganisms killed after dust collection (about 22.7%) can survive. On the other hand, it can be seen that at an applied voltage of 10 [kV] or more, more than 59.19% of microorganisms die.

Considering the above experimental results, it is desirable that the applied voltage (Vdc) satisfies the conditions of Equation 1 above.

Figure 9 is a schematic cross-sectional view showing the arrangement of a first dust collection electrode, a second dust collection electrode, and a dielectric spacer according to another example of a dust collection part of an electric dust collector according to an embodiment of the present invention.

Referring to FIG. 9, each of the first and second dust collection electrodes 310 and 330 constituting the dust collection unit may further include an antibacterial coating layer 345 formed on the conductive layer 343. Here, the antibacterial coating layer 345 may be made of at least one metal material selected from metals including copper (Cu), zinc (Zn), and silver (Ag). As is well known, such a metal material has an antibacterial function, and by forming an antibacterial coating layer 345, the sterilization and sterilization performance of the particles collected on the conductive layer 343 can be improved.

10 and 11 are perspective views showing an example of the installation of a dust collection unit of an electric dust collection device according to an embodiment of the present invention.

As shown in Figures 10 and 11, the first dust collection electrode 310, the second dust collection electrode 330, and the dielectric spacer 350 may be rolled into a roll shape. Here, the shape of the roll may be circular or square. Accordingly, one elongated dielectric spacer 350 may be disposed between one elongated first dust collection electrode 310 and one elongated second dust collection electrode 330.

In Figure 10, reference number 510 may be a filling part to fill the space between the dust collection case 500 and the roll-shaped first dust collection electrode 310 and the second dust collection electrode 330. Accordingly, the roll shape of the first dust collection electrode 310 and the second dust collection electrode 330 can be stably maintained and the positions of the first dust collection electrode 310 and the second dust collection electrode 330 can be fixed.

Meanwhile, as shown in FIG. 2, a plurality of first dust collection electrodes 310, a plurality of second dust collection electrodes 330, and a plurality of dielectric spacers 350 may be installed in the dust collection case 500. At this time, a plurality of first collection electrodes and a plurality of second collection electrodes 330 may be alternately arranged in the width direction of the dust collection case 500. Accordingly, as explained through FIGS. 3 and 4, the first dust collection electrode 310, the dielectric spacer 350, the second dust collection electrode 330, the dielectric spacer 350, the first dust collection electrode 310,... Can be arranged in order.

Meanwhile, the polarities of the first dust collection voltage and the second dust collection voltage supplied to the first dust collection electrode 310 and the second dust collection electrode 330 may be reversed. For example, a positive voltage and a negative voltage may be supplied to the first dust collection electrode 310 and the second dust collection electrode 330, respectively, and then the polarity may be changed to supply a negative voltage and a positive voltage, respectively.

Charged fine dust is attached to the first dust collection electrode 310 and the second dust collection electrode 330 according to the first dust collection voltage and the second dust collection voltage. Over time, fine dust is attached due to oil or sticky substances, etc. It may become difficult to remove dust from the first dust collection electrode 310 and the second dust collection electrode 330. In order to prevent this, the polarities of the first dust collection voltage and the second dust collection voltage supplied to the first dust collection electrode 310 and the second dust collection electrode 330 are changed as needed to remove the attached fine dust from the first dust collection electrode ( It can be easily separated from 310) and the second dust collection electrode 330.

In addition to this polarity change, a high-voltage first dust-collecting voltage and a low-voltage second dust-collecting voltage are supplied to the first dust-collecting electrode 310 and the second dust-collecting electrode 330, and then the low-voltage first dust-collecting voltage and the high-voltage second dust-collecting voltage are supplied. This may be supplied.

Figure 12 is a schematic perspective view showing the overall arrangement structure of the electric dust collector according to an embodiment of the present invention in isolation.

The filtering module (FM) includes a charging unit 100 and a dust collecting unit 300 that overlap each other, and the connection rail 910 can connect a plurality of filtering modules (FM) to each other. To this end, a filtering module (FM) may be inserted into the connection rail 910 to form a sliding guiding groove 911. One side and the other side of the plurality of filtering modules (FM) can be placed in an appropriate position by being inserted into the guiding groove 911 of the vertically spaced connection rail 910 and sliding along the guiding groove 911. . In this way, a plurality of filtering modules (FM) are connected by the connection rail 910, so that fine dust can be filtered over a wide area. In addition, since the number of connections of the filtering module (FM) can be changed as desired by the user, it is possible to flexibly respond depending on the installation space or installation situation of the place where the electrostatic precipitator according to the present invention is installed.

A charging contact terminal may be formed on the inner surface of the connection rail 910 to apply the first voltage and the second voltage to the charging unit 100 of the filtering module FM. The plurality of beam electrodes 130 are connected to a common node, and the common node may be in contact with a charging contact terminal that applies the first voltage. Additionally, the plurality of line electrodes 150 are also connected to a common node, and the common node of the line electrode may be in contact with a charging contact terminal that applies the second voltage.

Likewise, a dust collection contact terminal may be formed on the inner surface of the connection rail 910 to apply the first dust collection voltage and the second dust collection voltage to the dust collection unit 300 of the filtering module (FM).

At this time, the charging contact terminal and the dust collecting contact terminal may be insulated from each other to prevent short circuit. For example, the connection rail 910 may be made of a non-conductor, and the charging contact terminal and the dust collection contact terminal may be positioned spaced apart from each other.

In this way, since the charging contact terminal and the dust collection contact terminal are formed on the inner surface of the connection rail 910, the first voltage, the second voltage, the first dust collection voltage, and the second dust collection voltage are applied to the plurality of filtering modules (FM). Since the wiring for the filtering device is reduced, the structure of the filtering device can be simplified and the ease of installation can be increased.

The above-described embodiments are merely illustrative, and various modifications and equivalent embodiments can be made by those skilled in the art. Therefore, the true technical protection scope of the present invention must be determined by the technical idea of the invention described in the claims./

100: Daejeon part 300: Dust collection part
310: first dust collection electrode 330: second dust collection electrode
341: base plate 343: conductive layer
350, 350': Dielectric spacer 370: Control unit
500: dust collection case FM: filtering module
910: connecting rail

Claims (10)

An electric dust collection device for removing particles including fine dust and microorganisms floating in a predetermined space, including a charging unit that charges the particles, and a dust collection unit that collects the particles charged in the charging unit,
The dust collection unit,
a first dust collection electrode to which a first dust collection voltage is applied;
a second dust collection electrode to which a second dust collection voltage is applied to generate a voltage difference with the first dust collection electrode;
a dielectric spacer that separates the first dust collection electrode and the second dust collection electrode from each other to form a space in which air can move, and serves as a dielectric so that the first and second dust collection electrodes perform a capacitor function;
A control unit that controls the voltage applied to at least one of the first dust collection electrode and the second dust collection electrode so that a voltage difference (Vdc) in a predetermined range is generated between the first dust collection electrode and the second dust collection electrode. Including,
The control unit,
The particles are collected in at least one of the first and second dust collection electrodes, and during the collection process, the microorganisms collide with and electrically discharge at least one of the first and second dust collection electrodes. Controls the voltage difference (Vdc) so that it can be killed by,
The dielectric spacer is,
It has a structure in which a predetermined pattern is repeatedly formed at a predetermined pitch (P2), and includes a first spacer portion and a second spacer portion that are distinguished according to their installation positions,
The first spacer part,
One side is in contact with the first dust collection electrode, and the other side has a structure that faces the second dust collection electrode while remaining spaced apart, and is formed in a structure that is repeated at a predetermined interval, so that the second dust collection electrode A first air passing space (SP1) is formed between the
The second spacer part,
It is formed integrally with the first spacer portion between the first spacer portions, one side of which is in contact with the second dust collection electrode, and the other side faces the first dust collection electrode at a predetermined distance. It is arranged so as to form a second air passing space (SP2) between the first dust collection electrode,
An electric dust collector, characterized in that the volume of the first air passage space (SP1) and the volume of the second air passage space (SP2) are formed differently. According to paragraph 1,
Each of the first and second dust collection electrodes,
A base plate made of an insulating film;
An electric dust collector comprising a conductive layer attached to at least one side of the base plate. According to paragraph 2,
An electric dust collector comprising an antibacterial coating layer formed on the conductive layer to improve sterilization and sterilization performance for the particles collected on the conductive layer. According to paragraph 3,
The antibacterial coating layer is,
An electric dust collector, characterized in that it is made of at least one metal material selected from metals consisting of copper (Cu), zinc (Zn), and silver (Ag). According to paragraph 1,
The control unit,
An electric dust collection device, characterized in that the applied voltage is controlled so that the voltage difference (Vdc) between the first dust collection electrode and the second dust collection electrode satisfies the condition of Equation 1.
<Equation 1>
10 ≤ Vdc ≤ 20 [kV] According to clause 5,
The second dust collection electrode is grounded,
An electric dust collection device, wherein a voltage in the range of Equation 1 is applied to the first dust collection electrode. delete According to any one of claims 1 to 6,
When comparing the area (first area) of the first spacer portion facing the second dust collection electrode and the area (second area) of the second spacer portion facing the first dust collection electrode,
An electric dust collector, characterized in that the second area is formed to be more than 3 times larger than the first area. According to any one of claims 1 to 6,
An electric dust collector, characterized in that the height (H2) of the dielectric spacer is set to 1.2 mm or less, and the pitch (P2) is set to 7.0 mm or less. According to any one of claims 1 to 6,
An electric dust collection device, wherein the first dust collection electrode, the second dust collection electrode, and the dielectric spacer are rolled in a roll shape.