KR20240054762A - Apparatus for performing dust collection with ultra low power - Google Patents

Abstract

In the ultra-low-power electrostatic precipitator according to an embodiment of the present invention, the basic dust collector includes a first dielectric, a first electrode, a first region, a second electrode, and an external insulator, and the first electrode and the first region are the first It may be repeated on the first side of the dielectric. According to an embodiment of the present invention, power is temporarily supplied to the basic dust collector to charge the first dielectric, and then the power supply is stopped and the dust collector is discharged into the space between a plurality of basic dust collectors or between roll-shaped basic dust collectors. Since dust collection is performed by passing through a space, dust collection can be achieved while minimizing the use of power supplied from an external power source to the DC power supply unit, and also, the electric field is generated in the portion where the first electrode forming a predetermined pattern is formed in the basic dust collector. The dust collection efficiency can be increased by the concentration and distortion phenomenon.

Description

Ultra low power electrostatic precipitator {APPARATUS FOR PERFORMING DUST COLLECTION WITH ULTRA LOW POWER}

The present invention relates to an electrostatic precipitator, and more specifically, to an ultra-low-power electrostatic precipitator that can minimize the use time of an external power source by using charge charging by polarization of a dielectric.

The electrostatic precipitator is a device that electrically charges the dust scattered in the dust gas using corona discharge and collects the charged dust by forming an electric field between two dust collection plates spaced at a certain interval. It consists of a dust collection plate, a discharge electrode, and a power source. It consists of devices, etc., and is divided into a first-stage electrostatic precipitator in which particle charging and dust collection are performed in the same space, and a two-stage electrostatic precipitator in which particle charging and dust collection are performed separately.

However, in the two-stage electrostatic precipitator of the prior art, in order to form an electric field between two dust collector plates, high voltage must be continuously applied to the dust collector plates using a power supply. Typically, the power supply used in an electrostatic precipitator uses a circuit consisting of a coil and a number of capacitors to boost a voltage of several to hundreds of volts to a high voltage of several to tens of kilovolts or more, and in this process, the energy generated from the elements in the circuit is increased. There is a problem that the power lost due to heat, etc. and the power consumed by cooling devices, etc., are significant. In addition, when the conventional technology is applied to an environment where the living space and the dust collection plate are connected through a dust gas inflow passage, such as an air purifier, there is a problem that the user is constantly exposed to safety accidents due to high voltage, and high moisture containing droplets, etc. When unconditioned dust gas flows into the dust collection plate, it is impossible to form an electric field between the two dust collection plates due to electrical short circuit caused by moisture, which may cause problems such as reduced dust collection performance.

The problem that the present invention aims to solve is a device that can remove dust without consuming power when the external power source is turned off. The electrodes in the dust collector form a predetermined pattern, and the electric field is concentrated and concentrated in the area where the electrodes are formed. The aim is to provide an ultra-power saving electrostatic dust collector that can induce distortion and remove dust by Coulomb's force and dielectric force.

The problem that the present invention aims to solve is a device that can remove dust by Coulomb force and dielectrophoresis force, is easy to manufacture, can prevent pressure loss, and can collect a lot of dust with minimal power consumption. The object is to provide an ultra-power saving electrostatic precipitator including a dust collector.

According to one aspect of the subject matter described in the present application, an ultra-low-power electric dust collector includes a housing including a dust collection space provided therein, an inlet through which dust gas flows, and an outlet through which gas from which dust is removed is discharged; A first dielectric located in the dust collection space and having a first and second surface facing each other, a conductive first electrode formed on the first surface, a conductive second electrode formed on the second surface, And a basic dust collector including an external insulator made of an insulator covering the first electrode and the second electrode; a direct current power supply unit that applies a voltage to the basic dust collector so that an electrical potential is formed between the first electrode and the second electrode; A blocking switch connected between the basic dust collector and the direct current power supply; and a power supply control unit that controls power supply to the DC power supply unit, wherein the basic dust collector is provided in plural pieces or is formed in a roll shape, and the basic dust collector has an electrode formed on the first surface. a first area portion that is not connected, wherein the first electrode and the first area portion are repeated along the first surface, and in a state where the potential difference is formed, the power supplied to the DC power supply unit is cut off by the power supply control unit and the The cutoff switch is opened, and dust can be removed from the dust gas by an electric field formed by polarization of the first dielectric due to the potential difference.

The basic dust collector includes a second area on the second surface where an electrode is not formed, and the second electrode and the second area may be repeated along the second surface.

The first electrode is divided into a plurality of line segments, and at least a portion of each line segment of the first electrode may be arranged parallel to each other.

The first electrode is branched into a plurality of line segments, and at least a portion of each line segment of the first electrode is arranged parallel to each other, and the second electrode is branched into a plurality of line segments, and at least a portion of each line segment of the second electrode is Some may be placed side by side with each other.

At least part of the branched line segment of the first electrode and the branched line segment of the second electrode are parallel to each other, and in a plan view, the branched line segment of the first electrode and the branched line segment of the second electrode are offset from each other. It can be done.

The branched line segments of the first electrode and the branched line segments of the second electrode may be perpendicular to or intersect each other.

The first electrode may be formed in a grid shape.

Each of the first electrode and the second electrode may be formed in a grid shape.

The basic dust collector includes a conductive third electrode formed on the first surface to be spaced apart from the first electrode; and a conductive fourth electrode formed on the second surface to be spaced apart from the second electrode, wherein the external insulator covers the third electrode and the fourth electrode, and the direct current power supply unit includes the third electrode. A voltage may be applied to the basic dust collector so that a potential difference is formed between the third electrode and the fourth electrode.

Each of the first electrode and the third electrode is branched into a plurality of line segments, and at least a portion of the branched line segments of the first electrode and the branched line segments of the third electrode may be parallel to each other.

Each of the second electrode and the fourth electrode is branched into a plurality of line segments, and at least a portion of the branched line segments of the second electrode and the branched line segments of the fourth electrode may be parallel to each other.

In a plan view, the branched line segments of the first electrode and the branched line segments of the second electrode may coincide with each other, and the branched line segments of the third electrode and the branched line segments of the fourth electrode may coincide with each other. there is.

The external insulator may include a plurality of protrusions protruding on one or both sides.

The ultra-low power electrostatic precipitator may further include a filter disposed at the inlet or the outlet to remove dust from the dust gas.

The ultra-low power electrostatic precipitator may further include a particle charging unit disposed at the inlet or the outlet to ionize gas and electrically charge surrounding dust.

According to the ultra-low-power electrostatic precipitator according to an embodiment of the present invention, the basic dust collector includes a first dielectric, a first electrode, a first area, a second electrode, and an external insulator, and the first electrode and the first area are It may be repeated on the first side of the first dielectric. According to an embodiment of the present invention, power is temporarily supplied to the basic dust collector to charge the first dielectric, and then the power supply is stopped and the dust collector is discharged into the space between a plurality of basic dust collectors or between roll-shaped basic dust collectors. Since dust collection is performed by passing through a space, dust collection can be achieved while minimizing the use of power supplied from an external power source to the DC power supply unit, and also, the electric field is generated in the portion where the first electrode forming a predetermined pattern is formed in the basic dust collector. The dust collection efficiency can be increased by the concentration and distortion phenomenon.

According to the ultra-low-power electrostatic precipitator according to an embodiment of the present invention, the basic dust collector further includes a second region, and the second electrode and the second region may be formed by repeating them on the second surface of the first dielectric. According to an embodiment of the present invention, the first electrode and the second electrode each form a predetermined pattern on the first and second surfaces opposing each other, and the electric field is concentrated and distorted in the portion where the first electrode and the second electrode are formed. The dust collection efficiency can be further improved through the phenomenon.

According to the ultra-low-power electrostatic precipitator according to an embodiment of the present invention, the basic dust collector may further include a third electrode and a fourth electrode. According to an embodiment of the present invention, the third electrode and the fourth electrode each form a predetermined pattern on the first and second surfaces opposing each other, the portion where the first electrode and the second electrode are formed, and the third electrode and the third electrode The dust collection efficiency can be further increased by the concentration and distortion of the electric field in the area where the four electrodes are formed.

According to the ultra-power saving electrostatic precipitator according to an embodiment of the present invention, the basic dust collector is easy to manufacture because the first electrode and/or the second electrode is formed in a predetermined pattern shape. In the case where the first electrode and/or the second electrode are formed in a predetermined pattern shape, compared to the case where protrusions are formed on the surface of the basic dust collector, the flow of dust gas is not obstructed when passing through, so it does not cause pressure loss. Since each basic dust collector can be arranged more densely, more basic dust collectors can be placed in the dust collection space of the housing, and dust collection efficiency can be further increased.

1 is a diagram schematically showing an electric dust collection device according to an embodiment of the present invention.
Figure 2 is a diagram schematically showing the operating sequence of an electrostatic precipitator according to an embodiment of the present invention.
Figure 3 is a diagram showing the operating principle of an electrostatic precipitator according to an embodiment of the present invention.
Figure 4 is a diagram showing an additional direct current power unit installed in the electric dust collection device according to an embodiment of the present invention.
Figures 5, 6, 7, 8, 9, and 10 each schematically show a basic dust collector according to an embodiment of the present invention.
Figure 11 is a diagram showing the schematic shape of the basic dust collector in the electric dust collection device according to an embodiment of the present invention.
Figure 12 is a diagram schematically showing a filter provided in the housing of an electric dust collection device according to an embodiment of the present invention.
Figure 13 is a diagram schematically showing a particle charging unit provided in an electrostatic precipitator according to an embodiment of the present invention.
Figure 14 is a diagram schematically showing the terminal connected to the electrode in the basic dust collector according to an embodiment of the present invention.
Figures 15 and 16 each schematically show how the external insulator is laminated on the basic dust collector.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings, but identical or similar components will be assigned identical or similar reference numerals and duplicate descriptions thereof will be omitted. The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

In each of the following drawings explaining an ultra-low-power electrostatic precipitator (hereinafter referred to as 'electrostatic precipitator 1') according to an embodiment of the present invention, a switch is indicated inside the power supply control unit 240, which is on/off. It is only for understanding of off and does not indicate a separate configuration.

The electric dust collector 1 according to an embodiment of the present invention may be provided with a basic dust collector 130.

Hereinafter, the electric dust collector 1 according to an embodiment of the present invention will be described.

Figure 1 is a diagram schematically showing an electrostatic precipitator 1 according to an embodiment of the present invention.

Figure 2 is a diagram schematically showing the operating sequence of the electric dust collector 1 according to an embodiment of the present invention.

Figure 3 is a diagram showing the operating principle of the electrostatic precipitator 1 according to an embodiment of the present invention.

And, Figure 4 is a diagram showing the additional DC power supply unit 220 installed in the electric dust collection device 1 according to an embodiment of the present invention.

As shown in Figures 1 to 3, the electric dust collector 1 according to an embodiment of the present invention includes a housing 400, a basic dust collector 130, a direct current power supply unit 210, a cutoff switch 230, and Includes a power supply control unit 240.

The housing 400 may form the overall appearance of the electrostatic precipitator 1. The housing 400 includes a dust collection space 450 forming its interior space. Additionally, the housing 400 may include an inlet 410 through which dust gas flows in, and an outlet 420 through which gas from which dust is removed is discharged. Dust gas flows into the housing 400 through the inlet, and after the dust is removed from the dust collection space 450, clean gas can be discharged to the outside of the housing 400 through the outlet 420.

The basic dust collector 130 is located in the dust collection space 450 of the housing 400 and includes a first dielectric 112, a first electrode 111, a second electrode 121, and an external insulator 131. It comes true. The first dielectric 112, the first electrode 111, the second electrode 121, and the external insulator 131 each form a layer and are stacked and combined with each other to form the basic dust collector 130. .

The basic dust collector 130 according to an embodiment of the present invention has a capacitor structure.

The basic dust collector 130 may be formed in the form of a plate or film having a predetermined area.

The first dielectric 112 is made of a material (dielectric substance) that can be polarized by an external power source and charged. The first dielectric 112 may be in the form of a film. The first dielectric 112 includes a first surface 112a and a second surface 112b. The first surface 112a and the second surface 112b form opposite sides of the first dielectric 112.

The 'first' in 'first dielectric' described in the embodiments of the present invention is used to distinguish the 'first dielectric' from a normal 'dielectric'. The 'first dielectric' described in the embodiment of the present invention refers to a dielectric that constitutes the 'basic dust collector' and is provided between two corresponding electrodes, and may be referred to as a 'dielectric'.

The first electrode 111 and the second electrode 121 are each formed of a conductive material. The first electrode 111 and the second electrode 121 are formed on opposite sides of the first dielectric 112. When the first electrode 111 is formed on the first surface 112a of the first dielectric 112, the second electrode 121 is formed on the second surface 112b of the first dielectric 112. One of the first electrode 111 and the second electrode 121 may be applied with a positive voltage and the other may be grounded.

The external insulator 131 is made of an insulator, covers the first electrode 111 and the second electrode 121, and forms the outer surface of the basic dust collector 130. The external insulator 131 may be in the form of a film. In the basic dust collector 130, the external insulator 131 may be formed by coating (lamination). The external insulator 131 may be made of the same material as the first dielectric 112, but is not limited thereto.

The DC power supply unit 210 polarizes the first dielectric 112 by forming a potential difference between the first surface 112a and the second surface 112b of the first dielectric 112.

The power supply control unit 240 controls power supply to the DC power unit 210.

The cutoff switch 230 is electrically connected between the basic dust collector 130 and the DC power supply unit 210. In one embodiment, the cutoff switch 230 may be electrically located between the first electrode 111 and the DC power supply unit 210. In another embodiment, the cutoff switch 230 may be electrically located between the grounded second electrode 121 and ground.

In a state where each of the plurality of basic dust collectors 130 is spaced apart from each other and the power supply to the DC power unit 210 is blocked by the power supply control unit 240, the water flowing into the inlet 410 of the housing 400 Dust in the dust gas passes through the space between the basic dust collectors 130, and dust in the dust can be removed.

As described above, one basic dust collector 130 may be provided with a first dielectric 112, a first electrode 111, a second electrode 121, and an external insulator 131, and the first electrode 111 ) and the second electrode 121, the first dielectric 112 is formed, and the external insulator 131 surrounds the first electrode 111 and the second electrode 121 and forms the outside of the basic dust collector 130. side can be achieved. A plurality of basic dust collectors 130 may be formed within one housing 400, and each basic dust collector 130 may be spaced apart from each other to form a space between each basic dust collector 130. . Each basic dust collector 130 may be arranged in parallel with each other.

The power supply control unit 240 determines that the power supply time (t1), which is the time during which power is supplied to the DC power supply unit 210 with the cutoff switch 230 closed, is set to determine the power supplied to the DC power supply unit 210 with the cutoff switch open. The power supply to the DC power supply unit 210 can be controlled to be shorter than the power cut-off time (t2), which is the cut-off time, and as the ratio of the power cut-off time (t2) to the power supply time (t1) increases, the electrostatic precipitator device The power usage of (1) can be reduced.

According to an embodiment of the present invention, even when the power to the DC power supply unit 210 is temporarily applied by the power supply control unit 240 and then cut off, the polarization of the first dielectric 112 causes An electric field (E _Pol ) is formed between the first electrode 111 and the second electrode 121, so that dust in the dust gas passing through the dust collection space 450 can be removed.

Here, the time (power supply time (t1)) during which the DC power supply unit 210 applies power to the first electrode 111 or the second electrode 121 when the cutoff switch 230 is closed is several milliseconds to several milliseconds. It is performed for seconds, and the power-off time (t2) with the cut-off switch open can last for tens of minutes to several hours. And according to an embodiment of the present invention, dust can be removed from the dust gas by the electric field (E _Pol ) formed by the polarization of the first dielectric 112 at the power-off time (t2). That is, the electric field (E _Pol ) formed by the polarization of the first dielectric 112 after the DC power supply unit 210 is turned off removes dust in the dust gas and can be maintained for tens of minutes to several hours. The principle of this will be explained below.

2(a) and 3(a) show that the cut-off switch 230 is closed and power is supplied to the DC power supply unit 210, so that the first surface 112a of the first dielectric 112 and the first surface 112a of the first dielectric 112 are connected to each other. This is a drawing of a case where a potential difference is formed on two surfaces (112b), and Figure 2 (b) is a drawing of a case where the cut-off switch 230 is open, and Figures 2 (c) and Figure 3 (b) When the cutoff switch 230 is open and the power supply to the DC power supply unit 210 is cut off, an electric field (E _Pol ) is formed between the two basic dust collectors 130 by polarization of the first dielectric 112. This is a drawing for

First, as shown in (a) of FIG. 2 and (a) of FIG. 3, a positive voltage is applied to the first electrode 111 by the DC power supply unit 210, and the cutoff switch 230 When the second electrode 121 is closed and grounded, a potential difference is generated between the first electrode 111 and the second electrode 121 of the two basic dust collectors 130 located facing each other, As a result, the first dielectric 112 may be polarized.

At this time, as shown in (b) of FIG. 2, the blocking switch 230 may be opened.

Next, as shown in (c) of Figure 2 and (b) of Figure 3, the cutoff switch 230 is opened and the first electrode is switched from the DC power supply unit 210 by the power supply control unit 240. The voltage applied to (111) may be blocked. Opening of the cutoff switch 230 and blocking of the power supply of the power supply control unit 240 may be performed simultaneously with each other, or one may be performed before the other.

When the voltage applied to the first electrode 111 by the power supply control unit 240 is blocked after the blocking switch 230 is opened, the DC power supply unit 210 - the basic dust collector 130 - is connected to ground. The previously closed circuit becomes an open circuit due to the open cutoff switch 230.

In the case of a typical high voltage generator, when the power is cut off, the high voltage outlet is grounded, and the potential difference inside the device connected to it disappears. However, in a structure in which the blocking switch 230 is open as shown in (b) of FIG. 2, even if the high voltage discharge unit is grounded (even if the power is cut off), the charge accumulated in the first dielectric 112 by the open blocking switch 230 is It can be maintained. Due to this, the electric field (E _Pol ) generated between the two basic dust collectors 130 located facing each other can be maintained for a long time even if the external power is cut off, and dust in the dust gas flowing between the two basic dust collectors 130 is Dust may be collected by the electric field (E _Pol ) formed by polarization of the first dielectric 112.

Meanwhile, the intensity of the electric field (E _Pol ) formed by the polarization of the first dielectric 112 may naturally decrease (self-discharge) over time or decrease as dust is collected in the basic dust collector 130.

When a positive voltage is applied to the first electrode 111 and the second electrode 121 is grounded, the electric field (E _Pol ) formed by the polarization of the first dielectric 112 is applied to the second electrode 121. ) is formed in the direction of the first electrode 111, and among the dust introduced into the electrostatic precipitator 1, the positively charged dust is directed toward the first electrode 111, and the negatively charged dust is directed toward the first electrode 111. It moves toward the second electrode 121 and is collected. At this time, between the positively charged dust collected in the first electrode 111 and the negatively charged dust collected in the second electrode 121, an electric field in the opposite direction to the electric field (E _Pol ) formed by the polarization of the first dielectric 112 This can be generated to reduce the net electrical field strength between the two basic dust collectors 130. For this reason, the dust collection performance of the electric dust collector 1 may be reduced as dust accumulates on the surface of the basic dust collector 130.

However, the amount of charge possessed by dust in the dusty gas that has not gone through a separate charging process is very small compared to the amount of charge accumulated by polarization of the first dielectric 112. Therefore, the intensity of the electric field (E _Pol ) generated by the polarization of the first dielectric 112 is very large compared to the strength of the electric field generated by the collected dust, and for this reason, the surface of the basic dust collector 130 (external insulator) Even if dust is collected on the surface (131), the electric field (E _Pol ) formed by the polarization of the first dielectric 112 can be maintained for several hours. Because of this, even when the power of the DC power supply unit 210 is turned off for a long time, dust collection of dust in the dust gas flowing between the basic dust collectors 130 can be performed stably.

Through a typical resistance-capacitance circuit (R-C circuit) analysis, the time for charging the dielectric with power and the time for dielectric discharge due to dust attachment can be calculated. In theory, it takes milliseconds (ms) to charge a dielectric with a high voltage of several kV under normal power usage conditions, and even under discharge conditions due to the collection of highly charged particles, the charge remaining in the dielectric is The electric field generated by can be maintained for tens of hours.

In addition, since the power of the DC power supply unit 210 is cut off during the dust collection process, the voltage drop and the DC power supply unit 210 due to an electrical short that occurs when processing dust gas under high moisture conditions containing moisture and liquid droplets. ), it is possible to prevent overcurrent flow from the system, enabling high-moisture dust gas treatment and preventing electrical safety accidents.

In the electric dust collector 1 according to an embodiment of the present invention, the basic dust collector 130 includes an external insulator 131.

Unlike the embodiment of the present invention, when the two adjacent basic dust collectors 130 do not include the external insulator 131, the first electrode 111 and the second electrode 121 located facing each other are spaced apart from each other. Since they are electrically insulated by the dust gas present, the electric field generated between the first electrode 111 and the second electrode 121 cannot exceed the dielectric strength of the dust gas. However, as described above, when the basic dust collector 130 includes an external insulator 131 and the external insulator 131 surrounds the first electrode 111 and the second electrode 121, the first electrode 111 Since the insulation between the and the second electrode 121 can be maintained, a higher electric field can be stably formed.

As shown in FIG. 4, the electric dust collector 1 according to an embodiment of the present invention has a potential difference with the first electrode 111 when the DC power supply 210 supplies power only to the first electrode 111. It may include an additional direct current power supply unit 220 that supplies power having to the second electrode 121.

The additional DC power unit 220 may be installed as a separate power unit, or the output voltage wires (or electrodes) of the DC power unit 210 may be divided in parallel into a plurality, and some of them may be equipped with integrated circuits (ICs), resistance elements, etc. It can be implemented by changing the intensity or polarity of the voltage output from the DC power supply unit 210 by connecting.

When the additional DC power unit 220 is installed as described above, the blocking switch 230 may be located between the second electrode 121 and the additional DC power unit 220, and the DC power unit 210 and the additional DC power unit ( The power of 220 can be controlled individually or simultaneously by one or more power supply control units 240.

In one embodiment, as shown in FIG. 4, the DC power supply unit 210 and the additional DC power supply unit 220 may be connected to one power supply control unit 240 and controlled in conjunction with each other.

Alternatively, unlike shown in FIG. 4, the electrostatic precipitator 1 may be provided with two power supply control units (a first power supply control unit and a second power supply control unit). In this case, the first power supply control unit and the second power supply control unit may operate in conjunction with each other.

Compared to polarizing the first dielectric 112 using the DC power supply 210, when polarizing the first dielectric 112 using the DC power supply 210 and the additional DC power supply 220, the first dielectric ( By accelerating the polarization of 112), the usage time of the DC power supply unit 210 and the additional DC power supply unit 220 can be further reduced, and thus the power required to operate the electrostatic precipitator 1 can be further reduced.

Figures 5, 6, 7, 8, 9, and 10 each schematically show the basic dust collector 130 according to an embodiment of the present invention. In each of FIGS. 5 to 10, the left side of the basic dust collector 130 in cross-sectional shape schematically shows the electrode formed on the first surface 112a of the first dielectric 112, and the first dielectric is shown on the right side. The electrode formed on the second surface 112b of 112 is schematically shown.

In the electric dust collector 1 according to an embodiment of the present invention, the basic dust collector 130 may include a first region 111t. The first area portion 111t is a portion corresponding to a region in which an electrode is not formed on the first surface 112a of the first dielectric 112. Accordingly, the first dielectric 112 and the external insulator 131 may be in direct contact with the first area 111t of the first surface 112a.

In the electric dust collector 1 according to an embodiment of the present invention, the basic dust collector 130 may include a second region 121t. The second area portion 121t corresponds to a region on the second surface 112b of the first dielectric 112 where an electrode is not formed. Accordingly, the first dielectric 112 and the external insulator 131 may be in direct contact with the second area portion 121t of the second surface 112b.

The first electrode 111 on the first surface 112a of the first dielectric 112 may be formed in various pattern shapes. That is, the first electrode 111 on the first surface 112a of the first dielectric 112 may be formed of a series of straight lines and/or a combination of curves.

On the first surface 112a of the first dielectric 112, the first electrode 111 and the first region 111t may be formed by repeating each other along the first surface 112a of the first dielectric 112. there is.

The first electrode 111 and the first region 111t may each be formed in the form of a plurality of line segments, and the line segment of the first electrode 111 and the first line segment on the first surface 112a of the first dielectric 112 Line segments of the area portion 111t may be repeated along the surface direction of the first surface 112a of the first dielectric 112.

The first electrode 111 may be branched into multiple line segments. At least some of the line segments of the first electrode may be arranged parallel to each other. Each line segment of the first electrode may be arranged parallel to the horizontal direction or may be arranged parallel to the vertical direction.

The first electrode 111 is divided into a plurality of line segments, and each line segment may be perpendicular or intersect. The first electrode 111 may be formed in a grid shape. Accordingly, the first region 111t may be repeatedly formed in rows and columns on the first surface 112a of the first dielectric 112.

The second electrode 121 on the second surface 112b of the first dielectric 112 may be formed in various pattern shapes. That is, the second electrode 121 on the second surface 112b of the first dielectric 112 may be formed of a series of straight lines and/or a combination of curves.

On the second surface 112b of the first dielectric 112, the second electrode 121 and the second region 121t may be formed by repeating each other along the second surface 112b.

The second electrode 121 and the second region 121t may each be formed in the form of a plurality of line segments, and the line segment of the second electrode 121 and the second line segment on the second surface 112b of the first dielectric 112 Line segments of the area portion 121t may be repeated along the surface direction of the second surface 112b.

The second electrode 121 may be branched into multiple line segments. At least some of the line segments of the second electrode may be arranged parallel to each other. Each line segment of the second electrode may be arranged parallel to the horizontal direction or may be arranged parallel to the vertical direction.

The second electrode 121 is divided into a plurality of line segments, and each line segment may be perpendicular or intersect. The second electrode 121 may be formed in a grid shape. Accordingly, the second region 121t may be repeatedly formed in rows and columns on the second surface 112b of the first dielectric 112.

At least some of the branched line segments of the first electrode 111 and the branched line segments of the second electrode 121 may be parallel to each other.

In the basic dust collector 130 according to an embodiment of the present invention, in a plan view, the branched line segments of the first electrode 111 and the branched line segments of the second electrode 121 may be offset from each other.

In the basic dust collector 130 according to an embodiment of the present invention, the branched line segments of the first electrode 111 and the branched line segments of the second electrode 121 may be perpendicular to or intersect each other.

The external insulator 131 may be connected to the first dielectric 112 through the first area 111t on the first surface 112a of the first dielectric 112.

The external insulator 131 may be connected to the first dielectric 112 through the second region 121t on the second surface 112b of the first dielectric 112.

In one embodiment, the outer insulator 131 may have a flat outer surface.

In another embodiment, the external insulator 131 may have protrusions 132 and/or grooves 133 repeated on its outer surface.

In the electric dust collector 1 according to an embodiment of the present invention, the first electrode 111 and the first area portion 111t are formed on the first surface 112a of the first dielectric 112 of the basic dust collector 130. As the second electrode 121 and the second region 121t are repeatedly formed on the second surface 112b of the first dielectric 112, the electric field E generated between the basic dust collectors 130 _Pol ) can be concentrated and distorted to increase the dust collection efficiency for dust in the dust gas.

That is, when an electric field (E _Pol ) is generated between the basic dust collectors 130 by polarization of the first dielectric 112, the first area portion 111t is formed at the point where the first electrode 111 is formed. A stronger electric field may be generated at the point where the second electrode 121 is formed, and a stronger electric field may be generated at the point where the second region 121t is formed. The electric field (E _Pol ) between the two basic dust collectors 130 is concentrated where the first electrode 111 and the second electrode 121 are formed, and its intensity varies depending on the location and is non-uniform. ) develops well.

The electrostatic precipitator 1 according to an embodiment of the present invention is configured to collect dust using Coulomb force and dielectrophoresis force.

Coulomb force is a force expressed by the following [Equation 1].

[Formula 1] F=qE

In the above [Formula 1], q is the amount of charge possessed by the dust to be treated, and E is the strength of the electric field formed between the two basic dust collectors 130.

As you can see from [Equation 1] above, if you try to collect dust only by Coulomb force, you cannot catch all the dust, and only dust that is at least q≥1 (cannot be captured if q=0) is possible. .

However, dust that has been scattered in the atmosphere (or indoors) for a long time follows the Boltzmann charge distribution (normal distribution with an average of 0) and is electrically neutralized, so a separate charging device (which assigns q to the particles) is used. Unless a device) is installed in front of the electrostatic precipitator (1), dust may not be collected effectively.

On the other hand, dielectrophoresis is expressed by the following [Equation 2].

[Formula 2] F=2πr ³ ε _m Re[K]▽E ²

In the above [Equation 2], r is the radius of the particle to be treated, ε _m is the dielectric constant of the impregnated gas, Re[K] is the real value of the Clasius-Mossotti constant expressed as a complex number, and E is the distance between the two basic dust collectors 130. is the electric field strength of

As shown in [Equation 2] above, dielectrophoresis is a force applied to uncharged particles (q=0) and is a function of the gradient of the electric field formed in the two basic dust collectors 130.

That is, in order to use dielectrophoresis, the electric field formed in the two basic dust collectors 130 must be spatially distorted, and when dielectrophoresis is used, even uncharged particles can be collected.

Protrusions 132 and/or grooves 133 are formed on the outer surface of the basic dust collector 130, or the first electrode 111 and/or the second electrode 121 are formed in a predetermined pattern as described above. When this is done, a distorted electric field is formed between the two basic dust collectors 130 facing each other, so that not only uncharged (q = 0) particles can be collected by dielectrophoresis, but also charged (q ≠ 0) Since particles are affected by Coulomb force and dielectrophoresis force at the same time, dust collection performance can be further increased.

In an embodiment of the present invention, the first electrode 111 and the first region 111t are repeatedly formed on the first surface 112a of the first dielectric 112, so that the two basic dust collectors 130 face each other. It can induce concentration and distortion of the electric field (E _Pol ) formed between the two. In addition, the second electrode 121 and the second region 121t are repeatedly formed on the second surface 112b of the first dielectric 112, thereby creating an electric field formed between the two facing basic dust collectors 130. It can induce concentration and distortion of (E _Pol ).

That is, the electric field can be formed stronger at the point where the first electrode 111 is formed than at the point where the first region 111t is formed on the first surface 112a of the first dielectric 112, and the first dielectric ( The electric field may be formed stronger at the point where the second electrode 121 is formed than at the point where the second region 121t is formed on the second surface 112b of 112). In addition, since the electric field is strongly distorted at the edge of the electrode (edge effect), the edge of the first electrode 111 is in contact with the first area 111t, and the edge of the second electrode 121 is in contact with the second area 121t. At corners, the dielectrophoretic force may be maximized due to the strong electric field distortion effect.

As described above, the first electrode 111 or the second electrode 121 formed on the two basic dust collectors 130 facing each other induces concentration and distortion of the electric field (E _Pol ) to improve dust collection performance. In this case, the misaligned arrangement of the first electrode 111 and the second electrode 121 located facing each other can frequently cause non-uniform electric fields to be formed in the dust collection space 450, thereby further improving dust collection performance.

On the other hand, the electric field (E _Pol ) developed unevenly by the first electrode 111 and the second electrode 121 is maintained even when the power of the DC power supply unit 210 is turned off, thereby minimizing power consumption and reducing dust content in the dust gas. Dust collection can be achieved effectively.

The electric field (E _Pol ) is used as a physical device that induces the concentration and distortion phenomenon, and through this, dust collection performance can be improved through dielectrophoresis.

The shape of the first electrode formed on the first surface 112a of the above-described first dielectric 112 and the shape of the second electrode formed on the second surface 112b of the first dielectric 112 can be combined in various ways. Of course it can be done.

Meanwhile, even when protrusions 132 and/or grooves 133 are formed on the outer surface of the basic dust collector 130, dust can be collected using Coulomb force and dielectrophoresis force, but as described above, When the first electrode 111 and/or the second electrode 121 are formed in a predetermined pattern shape, compared to the case where the protrusion 132 or groove 133 is formed on the outer surface of the basic dust collector 130, the following It has excellent advantages such as:

Basically, when attempting to form a pattern of protrusions 132 or grooves 133 on the outer surface of the basic dust collector 130, there may be many difficulties in processing.

Experimentally, in order to distort the electric field enough to cause dielectrophoresis by forming a pattern of protrusions 132 on the surface of the basic dust collector 130, the first electrode 111 and the second electrode 121 located opposite each other are used. Protrusions with a height of 50% of the separation distance must be formed repeatedly at intervals of several millimeters.

Methods for processing a protrusion pattern on the surface of the film forming the external insulator include imprinting, compression molding, transfer printing, and 3D printing. However, as described above, when forming an electrode pattern, Compared to , a lot of process time and cost are required.

In an embodiment of the present invention, formation of an electrode pattern (repeated formation of the first electrode 111 and the first region 111t) on the first surface 112a of the first dielectric 112 and the formation of the first dielectric 112 The formation of an electrode pattern (repeated formation of the second electrode 121 and the second area portion 121t) on the second surface 112b of ) is performed on both sides (the first surface 112a and the second surface) of the first dielectric. When applying an electrode to (112b)), it is a relatively easy process because it only needs to be printed using a mask of a certain shape, and this ensures product processing continuity and economic efficiency.

Meanwhile, the electrostatic precipitator 1 is a structure through which fluid passes, and all fluid passes through the electrostatic precipitator 1 and generates pressure loss.

Since increased pressure loss has negative effects such as increased load on the entire system and increased noise, heat generation, vibration, and power consumption, the goal of all dust collection facilities is to maintain high dust collection efficiency with low pressure loss.

When a protrusion pattern is formed on the surface of the basic dust collector 130, it distorts the electric field and causes an increase in dust collection efficiency due to dielectrophoresis, but since the protrusions act as an obstacle that impedes the flow of fluid, they may be accompanied by an increase in pressure loss. You can.

On the other hand, when forming an electrode pattern on the basic dust collector 130 as described above, the surface of the basic dust collector 130 (the surface of the external insulator 131) is smooth and does not cause pressure loss and distorts the electric field. This can result in improved dust collection efficiency.

How much dust can be collected in a certain period of time is expressed as the air purification capacity (CADR, Clean Air Delivery Rate), which is the product of the flow rate and dust collection efficiency. In other words, even if the device has the same collection efficiency, the higher the flow rate, the more dust can be collected for a certain period of time.

When using a fan with the same power consumption, in the case of a device in which a protrusion pattern is formed on the surface of the basic dust collector 130, the flow rate that can be processed is relatively reduced due to pressure loss, and as in the embodiment of the present invention, When an electrode pattern is formed on the basic dust collector 130, the amount of dust that can be collected for a certain period of time becomes relatively larger.

In addition, when an electrode pattern is formed on the basic dust collector 130 without forming protrusions, etc. on the surface of the basic dust collector 130, each basic dust collector 130 can be placed closely, thereby collecting more dust. can be captured.

In the electric dust collector 1 according to an embodiment of the present invention, the basic dust collector 130 may include a third electrode 115. Additionally, the basic dust collector 130 may include a fourth electrode 125.

The third electrode 115 and the fourth electrode 125 are each formed of a conductive material. The third electrode 115 is formed on the first surface 112a of the first dielectric 112, and the fourth electrode 125 is formed on the second surface 112b of the first dielectric 112.

The third electrode 115 may be formed in the same manner as the first electrode 111. When manufacturing the basic dust collector 130, the third electrode 115 may be formed simultaneously with the first electrode 111. The fourth electrode 125 may be formed in the same manner as the second electrode 121. When manufacturing the basic dust collector 130, the fourth electrode 125 may be formed simultaneously with the second electrode 121.

The third electrode 115 is spaced apart from the first electrode 111 on the first surface 112a of the first dielectric 112. The fourth electrode 125 is spaced apart from the second electrode 121 on the second surface 112b of the first dielectric 112.

In the basic dust collector 130, the external insulator 131 covers the third electrode 115 and the fourth electrode 125.

The DC power supply unit 210 includes a first electrode 111 and a third electrode 115, a second electrode 121 and a fourth electrode 125, a first electrode 111 and a second electrode 121, and a third electrode 111. A voltage is applied to the basic dust collector 130 so that a potential difference is formed between the electrode 115 and the fourth electrode 125.

To this end, the third electrode 115 may be electrically connected to the second electrode 121, and the fourth electrode 125 may be electrically connected to the first electrode 111.

Electrical connection between the first electrode 111 and the fourth electrode 125 may be made always or selectively. Electrical connection between the second electrode 121 and the third electrode 115 may be made always or selectively.

When the additional DC power unit 220 is provided, the DC power unit 210 and the additional DC power unit 220 include the first electrode 111, the third electrode 115, the second electrode 121, and the fourth electrode 125. ), a voltage is applied to the basic dust collector 130 so that a potential difference is formed between the first electrode 111, the second electrode 121, the third electrode 115, and the fourth electrode 125.

To this end, the DC power supply unit 210 may be electrically connected to the first electrode 111, the additional DC power supply unit 220 may be electrically connected to the fourth electrode 125, and the second electrode 121 and The third electrode 115 may be electrically connected.

The electrical connection between the second electrode 121 and the third electrode 115 may be made always or selectively, and the polarity of the voltage supplied from the DC power supply unit 210 and the additional DC power supply unit 220 may be different. there is.

In this case, as described above, the power of the DC power supply unit 210 and the additional DC power supply unit 220 may be controlled individually or simultaneously by one or a plurality of power supply control units 240.

The third electrode 115 may be branched into multiple line segments. At least some of the branched line segments of the third electrode 115 and the branched line segments of the first electrode 111 may be parallel to each other. The branched line segments of the third electrode 115 and the branched line segments of the first electrode 111 may be formed by repeating each other on the first surface 112a of the first dielectric 112.

The fourth electrode 125 may be branched into multiple line segments. At least some of the branched line segments of the fourth electrode 125 and the branched line segments of the second electrode 121 may be parallel to each other. The branched line segments of the fourth electrode 125 and the branched line segments of the second electrode 121 may be formed by repeating each other on the second surface 112b of the first dielectric 112.

In a plan view, the branched line segments of the first electrode and the branched line segments of the second electrode coincide with each other, and the branched line segments of the third electrode 115 and the branched line segments of the fourth electrode 125 coincide with each other. It can be done.

A positive voltage is applied to each of the first electrode 111 and the fourth electrode 125 by the DC power supply unit 210, and the blocking switch 230 is closed to connect the second electrode 121 and the fourth electrode 125. When each of the three electrodes 115 is grounded, the first dielectric 112 may be polarized.

Next, when the blocking switch 230 is opened and the voltage applied to the first electrode 111 and the fourth electrode 125 by the power supply control unit 240 is blocked, the DC power supply unit 210 - basic dust collection The closed circuit connected to the sieve 130-ground becomes an open circuit due to the open blocking switch 230.

In a structure in which the cutoff switch 230 is open, the charge accumulated in the first dielectric 112 can be maintained by the open cutoff switch 230 even if the power is cut off. Because of this, the electric field (E _Pol ) generated between the two basic dust collectors 130 located facing each other can be maintained for a long time even if the external power source is cut off.

At this time, an electric field (E Pol) is formed between the first electrode 111 and the second electrode 121, which are adjacent and facing each other, due to the polarization of the first dielectric 112, and also the electric field (E _Pol ) is formed between the first electrode 111 and the second electrode 121, which are adjacent and facing each other. An electric field (E _Pol ) is also formed between the third electrode 115 and the fourth electrode 125, and the first electrode 111 and the third electrode 115, the second electrode 121 and the fourth electrode 115 have a potential difference from each other. Electric field distortion may be generated between the electrodes 125, the first electrode 111, the second electrode 121, the third electrode 115, and the fourth electrode 125, respectively.

Through this, a greater dielectrophoretic force can be obtained compared to the embodiment of the present invention in which only the first electrode 111 and the second electrode 121 are formed, and dust in the dust gas passing through the dust collection space 450 can be removed. It can be removed more effectively.

Figure 11 is a diagram showing the schematic shape of the basic dust collector 130 in the electric dust collector 1 according to an embodiment of the present invention.

In an embodiment of the present invention, the basic dust collector 130 may be in the form of a roll. That is, one basic dust collector 130 may be formed in a repeatedly wound form.

When the basic dust collector 130 is wound in a roll shape, the first surface 130a and the second surface 130b, which are the outer surfaces of the basic dust collector 130, are spaced apart from each other, and the first surface 130a and the second surface 130b are spaced apart from each other. A space is provided between the two sides (130b), and dust collection can occur as dust gas passes through this space.

Since the basic dust collector 130 is formed in the form of a roll, even if a plurality of separate basic dust collectors are not provided, sufficient dust collection capacity can be secured by providing only one basic dust collector 130 that is integrated. It is possible to form an electrostatic precipitator (1) that can be easily electrically connected to the DC power supply unit (210) or the like.

In addition, according to an embodiment of the present invention, one basic dust collector 130 is formed in a roll shape, so that it is easy to form a space between the first surface 130a and the second surface 130b of the basic dust collector. do.

FIG. 12 is a diagram schematically showing a filter 600 provided in the housing 400 of the electrostatic precipitator 1 according to an embodiment of the present invention. FIG. 12 shows the filter 600 disposed at the inlet 410, but a filter may also be disposed at the outlet 420.

The electrostatic precipitator 1 according to an embodiment of the present invention may further include a filter 600. The filter 600 may be disposed at the inlet 410 and/or the outlet 420 to remove dust from the dust gas.

The filter 600 may be shaped like a strainer. The filter 600 may be formed in the same form as a typical pre-filter, but is not limited thereto.

The filter 600 disposed at the inlet 410 may be in the form of a pre-filter for pretreatment, and the filter disposed at the outlet 420 may be in the form of a dust collection filter (HEPA filter).

The filter 600 disposed at the inlet 410 removes relatively large-sized dust from the dust gas flowing into the inlet 410 in advance and allows dust from the dust collection space 450 to be more effectively removed.

When the filter 600 is disposed at the outlet 420, dust flowing into the filter is first treated by the electric dust collector 1 according to an embodiment of the present invention, thereby extending the use period of the filter.

Figure 13 is a diagram schematically showing the particle charging unit 500 provided in the electrostatic precipitator 1 according to an embodiment of the present invention.

As shown in Figure 13, the electric dust collector 1 of the present invention is combined with the inlet 410 or the outlet 420 of the housing 400 to ionize the gas to electrically charge the surrounding dust. It may further include a charging portion 500. Figure 13 (a) is a diagram showing the particle charging part 500 formed at the inlet 410 of the housing 400, and Figure 13 (b) shows the particle charging part 500 of the housing 400. This is a drawing of what is formed at the outlet 420.

The particle charging unit 500 has an internal space, and an electric field may be generated in the internal space of the particle charging unit 500. Additionally, dust particles in the dust gas passing through the particle charging unit 500 may be charged. As the particle charging unit 500, a particle charging device using corona discharge, a particle charging device using a flame, a particle charging device using a light source, a particle charging device using friction charging, etc. may be used.

As shown in (a) of FIG. 13, when the particle charging unit 500 is coupled to the inlet 410 of the housing 400, the dust particles of the dust gas passing through the particle charging unit 500 are charged. Dust collection efficiency can be increased by increasing electrical mobility in response to the electric field (E _Pol ) when passing between each dust collector.

And, as shown in (b) of FIG. 13, when the particle charging unit 500 is coupled to the outlet 420 of the housing 400, it may be used for dust collection in a closed space. The dust-collected gas, which is the dust-collected gas that has passed through each dust collector, passes through the particle charging unit 500 and is ionized. At this time, the generated negative ions or positive ions can be discharged into a closed space together with the collected gas. Dust scattered in a closed space can be electrically charged as it moves along the air current along with the discharged anions or positive ions, and has a high probability of flowing into the electrostatic precipitator (1) of the present invention through the inlet of the housing (400). Dust may be collected.

Figure 14 is a diagram schematically showing a terminal connected to an electrode formed in the basic dust collector 130 according to an embodiment of the present invention. In FIG. 14, (a) is a view before the external insulator 131 is formed, and (b) in FIG. 14 is a view after the external insulator 131 is formed.

Figures 15 and 16 each schematically show the external insulator 131 laminated on the basic dust collector 130.

The basic dust collector 130 according to an embodiment of the present invention may include terminals 113 and 123 connected to electrodes 111 and 121.

The terminals 113 and 123 form a part where the basic dust collector 130 is electrically connected to other components.

The terminals 113 and 123 may not be covered by the external insulator 131. The terminals 113 and 123 may protrude outside the area of the external insulator 131.

In an embodiment of the present invention, terminals may be divided into a first terminal 113 and a second terminal 123.

The first terminal 113 is connected to the first electrode 111 on the first surface 112a of the first dielectric 112, and the second terminal 123 is connected to the second surface 112b of the first dielectric 112. ) is connected to the second electrode 121. The first terminal 113 and the second terminal 123 may be formed at the end of the basic dust collector 130. The first terminal 113 and the second terminal 123 may be formed to protrude outward from the edge of the basic dust collector 130.

The first terminal 113 may be formed integrally with the first electrode 111, and the second terminal 123 may be formed integrally with the second electrode 121.

The first dielectric 112 may include a first protrusion 134 and a second protrusion 135. The first protrusion 134 and the second protrusion 135 may each protrude outward from the edge of the first dielectric 112.

The first terminal 113 is formed on the first protrusion 134, and the second terminal 123 is formed on the second protrusion 135.

In the basic dust collector 130, the external insulator 131 covers the first dielectric 112, the first electrode 111, and the second electrode 121 without covering the first terminal 113 and the second terminal 123. Can be joined to the outside.

When the external insulator 131 is formed by laminating, at least a portion of the first terminal 113 and the second terminal 123 may be exposed and not covered by the external insulator 131.

In this way, the terminals (first terminal 113 and second terminal 123) are exposed, making it easy to electrically connect the basic dust collector 130 and apply external power to the basic dust collector 130. It can be done.

Figure 15 is a diagram schematically showing the external insulator 131 laminated on the basic dust collector 130.

As shown in FIG. 15, the external insulator 131 does not shield at least a portion (for example, a length of about 1 to 2 mm) of the first terminal 113 and the second terminal 123, but The second electrode may be laminated to the first dielectric 112, the first electrode 111, and the second electrode 121 to cover all of them.

Thereafter, the basic dust collector 130 can be completed by cutting the external insulator 131 along a predetermined cutting line (eg, the edge of the first dielectric 112).

FIG. 16 is a diagram schematically showing how the external insulator 131 is laminated on the basic dust collector 130 in the unfolded state before being rolled into a roll, when manufacturing the basic dust collector 130 in the roll form.

As shown in FIG. 16, the external insulator 131 does not shield at least a portion of the first terminal 113 and the second terminal 123 (for example, a length of about 1 to 2 mm), and the first electrode ( 111) and the second electrode 121 may be laminated to the first dielectric 112, the first electrode 111, and the second electrode 121 to cover them all.

As described above, when the basic dust collector 130 is made of a predetermined shape (e.g., square, circular, or other polygon), only the first terminal 113 and the second terminal 123 portion protrude further to the outer axis. By doing so, when the external insulator 131, which is in the form of a film, is joined to the first dielectric 112 by laminating, it is easy to completely shield the entire electrodes 111 and 121, and at the same time, it is easy to electrically connect to the outside. A dust collector 130 may be formed.

Although specific embodiments of the present invention have been described and shown above, the present invention is not limited to the described embodiments, and those skilled in the art can vary the invention to other specific embodiments without departing from the spirit and scope of the present invention. You will understand that it can be modified and transformed. Accordingly, the scope of the present invention should not be determined by the described embodiments, but rather by the technical idea stated in the claims.

1: Electrostatic precipitator
111: first electrode 112: first dielectric
121: second electrode 130: basic dust collector
131: external insulator
210: DC power unit 220: Additional DC power unit
230: Cutoff switch 240: Power supply control unit
400: Housing 410: Inlet
420: outlet 450: dust collection space
500: particle charger 600: filter

Claims (15)

A housing including a dust collection space provided therein, an inlet through which dust gas flows in, and an outlet through which gas from which dust is removed is discharged;
A first dielectric located in the dust collection space and having a first and second surface facing each other, a conductive first electrode formed on the first surface, a conductive second electrode formed on the second surface, And a basic dust collector including an external insulator made of an insulator covering the first electrode and the second electrode;
a direct current power supply unit that applies a voltage to the basic dust collector so that a potential difference is formed between the first electrode and the second electrode;
A blocking switch connected between the basic dust collector and the direct current power supply; and
It includes a power supply control unit that controls power supply to the DC power supply unit,
The basic dust collector is provided in plural pieces or in the form of a roll,
The basic dust collector includes a first area in which an electrode is not formed on the first surface, wherein the first electrode and the first area are repeated along the first surface,
In a state where the potential difference is formed, the power supplied to the DC power supply unit is cut off and the cutoff switch is opened by the power supply control unit, and the electric field formed by polarization of the first dielectric due to the potential difference causes the dust to be removed from the dust gas. To ensure that dust is removed,
Ultra-saving electrostatic precipitator. According to paragraph 1,
The basic dust collector includes a second area portion in which an electrode is not formed on the second surface, and the second electrode and the second region portion are repeated along the second surface,
Ultra-saving electrostatic precipitator. According to paragraph 1,
The first electrode is branched into a plurality of line segments, and at least a portion of each line segment of the first electrode is arranged parallel to each other,
Ultra-saving electrostatic precipitator. According to paragraph 2,
The first electrode is divided into a plurality of line segments, and at least a portion of each line segment of the first electrode is arranged parallel to each other,
The second electrode is branched into a plurality of line segments, and at least a portion of each line segment of the second electrode is arranged parallel to each other,
Ultra-saving electrostatic precipitator. According to clause 4,
At least part of the branched line segment of the first electrode and the branched line segment of the second electrode are parallel to each other,
In a plan view, the branched line segments of the first electrode and the branched line segments of the second electrode are offset from each other,
Ultra-saving electrostatic precipitator. According to clause 4,
The branched line segment of the first electrode and the branched line segment of the second electrode are made to be perpendicular to or intersect each other,
Ultra-saving electrostatic precipitator. According to paragraph 1,
The first electrode is formed in the form of a grid,
Ultra-saving electrostatic precipitator. According to paragraph 2,
Each of the first electrode and the second electrode is formed in a grid shape,
Ultra-saving electrostatic precipitator. According to paragraph 1,
The basic dust collector is,
a conductive third electrode formed on the first surface to be spaced apart from the first electrode; and
It includes a conductive fourth electrode formed on the second surface to be spaced apart from the second electrode,
The external insulator is made to cover the third electrode and the fourth electrode,
The direct current power supply unit is configured to apply a voltage to the basic dust collector so that a potential difference is formed between the third electrode and the fourth electrode,
Ultra-saving electrostatic precipitator. According to clause 9,
Each of the first electrode and the third electrode is branched into a plurality of line segments,
The branched line segment of the first electrode and the branched line segment of the third electrode are at least partially parallel to each other,
Ultra-saving electrostatic precipitator. According to clause 10,
Each of the second electrode and the fourth electrode is branched into a plurality of line segments,
The branched line segment of the second electrode and the branched line segment of the fourth electrode are at least partially parallel to each other,
Ultra-saving electrostatic precipitator. According to clause 11,
In a plan view, the branched line segments of the first electrode and the branched line segments of the second electrode coincide with each other, and the branched line segments of the third electrode and the branched line segments of the fourth electrode coincide with each other,
Ultra-saving electrostatic precipitator. According to any one of claims 1 to 12,
The external insulator includes a plurality of protrusions protruding on one or both sides,
Ultra-saving electrostatic precipitator. According to any one of claims 1 to 12,
Further comprising a filter disposed at the inlet or the outlet to remove dust from the dust gas,
Ultra-saving electrostatic precipitator. According to any one of claims 1 to 12,
Further comprising a particle charging unit disposed at the inlet or the outlet to ionize the gas and electrically charge the surrounding dust,
Ultra-saving electrostatic precipitator.

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