KR20200109150A - Dust collecting plate including flow guide surface and wet electrostatic precipitator using thereof - Google Patents

Abstract

The present invention is a dust collecting plate including a flow guide surface using a method of removing dust by descending the dust collecting surface of the dust collecting plate and a wet electric dust collector using the same, in which a certain water film can be formed on the dust collecting surface of the dust collecting plate. In a flat plate shape, a dust collecting unit in which dust is adsorbed on a dust collecting surface located at one side, a washing water storage unit formed on the upper surface of the dust collecting unit to store washing water, and a washing water storage unit having at least one washing water outlet formed on the upper surface, and the washing water storage unit are cleaned. It includes a washing water supply unit for supplying water, and the washing water injected into the receiving space of the washing water storage unit and discharged to the washing water outlet is spread around the washing water outlet serving as a flow guide surface, and then along the dust collecting surface. It is characterized in that it descends and removes dust.

Description

Dust collecting plate including flow guide surface and wet electrostatic precipitator using the same

The present invention relates to a dust collecting plate including a flow guide surface and a wet electric dust collector using the same.

The electrostatic precipitator is a facility that purifies the gas by electrically charging the suspended particles in the gas and separating the suspended particles from the gas using electrostatic force.

Electric precipitators can be divided into types using a dust collection pipe or a dust collection plate according to the shape of the dust collection part, which is a part that is directly collected, and FIG. 1 schematically shows the principle of electric dust collection using a dust collection plate.

As shown in FIG. 1, an electric dust collector using a dust collector plate includes a dust collector plate 10, a discharge electrode 20, and a high voltage generator 30. The discharge electrode 20 is disposed between the dust collecting plates 10 and generates a corona discharge.

In more detail, when a DC high voltage is applied to one end of the discharge electrode 20 in the high voltage generator 30, a corona discharge occurs at the discharge electrode 20, and the gas in the space between the discharge electrode 20 and the dust collecting plate 10 by the corona discharge Is ionized, and an electric field is formed between the discharge electrode 20 and the dust collecting plate 10.

The dust contained in the gas passes between the dust collecting plates 10, and the dust contained in the gas is electrically charged due to the ionization of the gas by corona discharge, and the dust charged by the electric force (kuulon force) adheres to the dust collecting plate 10. As a result, dust of the impregnated gas passing between the dust collecting plates 10 is removed. In other words, it is possible to purify the gas contained in the dust collection.

Dust attached to the inner wall of the dust collecting plate 10 can be washed off with water or removed by applying a physical shock to the dust collecting plate 10. The method of removing dust using water is a wet electric dust collector and a physical shock to remove dust. This method is called dry electric dust collector.

In the case of a wet electric precipitator, the flow of water flowing on the dust collecting surface, that is, one surface of the discharge electrode 20 side of the dust collecting plate 10, flows evenly over the entire area of the dust collecting surface and at the same time maintaining a water film of the same thickness to maximize the performance of the dust collector In conventional wet electric precipitators, the water film formed on the dust collecting surface is sensitively affected by the operating conditions of the dust collector and the flow rate of water for forming the water film, so it is difficult to form a water film uniformly over the entire area of the dust collecting surface. There was a problem.

As shown in the prior art documents, the prior art frequently uses an overflow method to form a uniform water film on the dust collecting surface.

2 is a schematic cross-sectional view for explaining a method of forming a water film by an overflow method used in the prior art.

As shown in FIG. 2, the overflow method includes a dust collecting plate 10 and a water tank 40 formed on the upper part of the dust collecting plate 10, and a cleaning hole 41 in the dust collecting plate 10 at a position formed in the water tank 40 When the water level rises due to the formation of water in the water tank 40, water is discharged to the cleaning hole 41 to form a water film on the dust collecting surface.

In the above-described method, when the water level of the water tank 40 is lower than the cleaning hole 41 and the water level of the water tank 40 is lower than that of the cleaning hole 41, when the cleaning water is discharged through the cleaning hole 41, Although it is possible to form a certain water film, the water level of the water tank 40 is higher than the location of the cleaning hole 41 due to the large amount of water supplied as in the case of (B) of FIG. 2, or the water level is rapidly increased due to the rapid supply of water. When rising higher than the position of (41), the flow rate of water ejected from the cleaning hole (41) increases due to the pressure due to the height difference between the water surface and the cleaning hole (41), leaving the dust collecting surface to prevent formation of a water film. There was a problem.

Such a problem means that a water film can be formed smoothly only when the amount of water supplied to the water tank is adjusted very uniformly, which may adversely affect the maintenance of stable performance of the electric dust collector, such as reducing smoothness of operation of the dust collector.

In addition to the above problems, other problems may occur when the width of the dust collecting plate 10 is widened.

3 is a front view of the conventional overflow type dust collecting plate 10 so that the width of the dust collecting plate 10 appears in order to explain a problem that may occur when the width of the dust collecting plate 10 is increased.

As shown in FIG. 3A, when the width of the dust collecting plate 10 increases, the spacing between the cleaning holes 41 inevitably increases. In this case, the influence of the surface tension of water discharged through the cleaning holes 41 increases significantly. Accordingly, the area occupied by the flow of water is localized with respect to the entire area of the dust collecting surface of the dust collecting plate 10, so that a portion where water does not exist on the dust collecting surface, so-called dead zone D, may occur. In order to solve this problem, a method of narrowing the spacing (S) between the cleaning holes 41 as shown in FIG. 3B should be used. In the case of FIG. 3B, the processing cost increases in proportion to the number of cleaning holes 41 In addition, as the number of cleaning holes 41 increases, the dust collecting plate 10 installed on top of the dust collector decreases in strength in the cleaning hole 41 due to the weight of the dust collecting plate 10 and the washing water. There is a problem in that an accident in which the dust collecting plate 10 falls downward may be caused by cutting in the width direction of the dust collector in the peripheral portion of (41).

1. Korean Patent Registration No. 10-0708544 ("Wet Electric Dust Collector", Announcement Date 2007.04.11.) 2. Korean Patent Registration No. 10-1173496 ("Electric dust collector with hydrophilic dust collecting plate for water film formation", 2012.08.07.) 3. Korean Patent Publication No. 2017-0076948 ("Vertical Wet Electric Dust Collector", Publication Date 2017.07.05.)

The present invention was conceived to solve the above problems, and an object of a dust collecting plate including a flow guide surface according to the present invention and a wet electric dust collector using the same is to allow a water film to be uniformly formed on the dust collecting surface of the dust collecting plate. It is intended to provide a dust collecting plate including a flow guide surface capable of stably forming a water film without being greatly affected by the flow rate of the washing water and securing the operation stability of the wet electric dust collector, and a wet electric dust collector using the same.

A dust collecting plate including a flow guide surface in the present invention for solving the above-described problems has an erect flat plate shape, a dust collecting part in which dust is adsorbed on a dust collecting surface located at one side, and is formed on the upper part of the dust collecting part to store washing water, A washing water storage unit in which at least one washing water outlet is formed on an upper surface serving as a flow guide surface, and a washing water supply unit supplying washing water to the washing water storage unit, and is injected into the receiving space of the washing water storage unit to clean the washing water. The washing water discharged to the water outlet is spread from the upper surface around the washing water outlet and then descends along the dust collecting surface to remove dust.

In addition, the upper surface of the washing water storage unit is characterized in that one end is connected to the dust collecting surface.

In addition, a portion where the upper surface of the washing water storage unit and the dust collecting surface are connected is a curved surface serving as a streamline of flow.

In addition, the upper surface of the washing water storage unit is rotated with respect to the dust collecting surface in a range of 10 degrees or more and 170 degrees or less.

In addition, the curved surface is characterized in that the upper surface of the washing water storage unit is located below the curved surface by protruding upward.

In addition, the washing water storage unit is characterized in that it further comprises a water blocking plate formed upward on the other end of the upper surface.

In addition, the washing water storage unit is characterized in that it is formed extending in the width direction of the dust collecting unit.

In addition, a plurality of the washing water discharge ports may be formed on the upper surface of the washing water storage unit in a width direction of the dust collecting unit at a predetermined interval.

In addition, it is coupled to be connected to the receiving space of the washing water storage unit, characterized in that it further comprises a pipe through which the washing water injected into the washing water storage unit passes.

In addition, the dust collecting part is characterized in that the end of the gas flow side is bent.

In addition, the washing water supply unit may further include a water level control panel in the shape of a plate and installed in the width direction inside the receiving space to uniformly adjust the level of the washing water that is injected into the receiving space and filled.

In addition, the water level control panel is characterized in that at least one hole is formed through.

The wet electric precipitator using a dust collecting plate including a flow guide surface according to the present invention includes at least one dust collecting plate for collecting gas flowing in a horizontal direction or flowing from a lower side to an upper side, a discharge electrode installed at a predetermined distance from the dust collecting plate, and the It characterized in that it comprises a high voltage supply for applying a voltage to the discharge electrode.

In addition, when there are a plurality of the dust collecting plates, the dust collecting plates located at the outermost are arranged so that the dust collecting surfaces face the inside, and the dust collecting plates located between the dust collecting plates located at the outermost are combined with each other, so that the dust collecting surfaces face outward. It is characterized by being combined.

In addition, the pair of dust collecting plates coupled to each other is characterized in that the end portions of the side to which the gas flows in contact with each other and are coupled.

In addition, the discharge electrode is characterized in that the wire or plate shape.

In addition, based on the path through which the gas is introduced, it is characterized in that it further comprises a preliminary removal unit disposed in front of the dust collecting plate to spray water to remove dust.

According to the dust collecting plate including the flow guide surface and the wet electric dust collector using the same according to the present invention as described above, since the water film of water flowing to the dust collecting surface of the dust collecting part can be uniformly formed over the entire dust collecting surface, dust collected on the dust collecting surface There is an effect that can be removed more efficiently.

Further, according to the wet electric precipitator according to the present invention, since the discharge electrode can be formed in a wire or plate shape, even if the place where the wet electric precipitator according to the present invention is installed is narrow or wide, there is an effect that it can be installed correspondingly.

In addition, according to the wet electric precipitator according to the present invention, a preliminary removal unit is installed at the front end of the dust collecting plate to first remove some of the dust contained in the gas before the gas is introduced, thereby reducing the dust concentration of the gas flowing into the dust collecting surface. It has the effect of increasing the dust collection performance and more efficiently collecting dust, such as suppressing the occurrence of spark on the dust collecting surface and reducing the corona quenching effect.

1 is a schematic diagram of an electric precipitator using a dust collecting plate.
2 is a schematic side view of a conventional overflow type wet electric precipitator.
3 is a schematic front view of a conventional overflow type wet electric precipitator.
4 is a dust collecting plate including a flow guide surface according to the first embodiment of the present invention
5 is a partially enlarged view of FIG. 4;
6 is a partial cross-sectional view of a dust collecting plate including a flow guide surface according to a first embodiment of the present invention.
7 is a top plan view of a dust collecting plate including a flow guide surface according to a first embodiment of the present invention.
8 is a partial cross-sectional view of a dust collecting plate including a flow guide surface according to a second embodiment of the present invention.
9 is a perspective view of a dust collecting plate assembly used in a wet electric precipitator including a dust collecting plate including a flow guide surface according to the first and second embodiments of the present invention.
10 and 11 are perspective views of a wet electric precipitator including a dust collecting plate including a flow guide surface according to a first embodiment of the present invention.
12 is a perspective view excluding some configurations of a wet electric precipitator including a dust collecting plate including a flow guide surface according to the first embodiment of the present invention.
13 is a plan view of a wet electric precipitator using a dust collecting plate including a flow guide surface according to a first embodiment of the present invention.
14 is a perspective view of a wet electric precipitator using a dust collecting plate including a flow guide surface according to a second embodiment of the present invention.
15 is a perspective view of a dust collecting plate assembly used in a wet electric dust collector including a dust collecting plate including a flow guide surface according to the third and fourth embodiments of the present invention.
16 is a perspective view of a wet electric precipitator using a dust collecting plate including a flow guide surface according to a third embodiment of the present invention.
17 is a perspective view excluding some configurations of a wet electric precipitator using a dust collecting plate including a flow guide surface according to a third embodiment of the present invention.
18 is a perspective view of a preliminary removal part of a dust collecting plate including a flow guide surface according to a third embodiment of the present invention.
19 is a perspective view excluding some configurations of a wet electric precipitator using a dust collecting plate including a flow guide surface according to a fourth embodiment of the present invention.

Hereinafter, a dust collecting plate including a flow guide surface according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[A dust collecting plate including a flow guide surface according to the first embodiment]

4 shows a dust collecting plate including a flow guide surface according to a first embodiment of the present invention.

As shown in FIG. 4, a dust collecting plate (hereinafter, referred to as dust collecting plate) 1000 including a flow guide surface according to the first embodiment of the present invention includes a dust collecting unit 100, a washing water storage unit (not shown), and a washing water supply unit (not shown). Poem).

As shown in FIG. 4, the dust collecting unit 100 has an erect flat plate shape, and dust is adsorbed from the dust collecting surface 110 located at one side. A discharge electrode may be positioned at a portion spaced from the dust collecting surface 110 by a predetermined distance, and when a high voltage is applied to the discharge electrode, dust electrically charged by corona discharge may be collected on the collecting surface 110.

When the dust collecting unit 100 is erected in a flat shape and in a square perpendicular to the ground, gas containing dust may flow in a direction parallel to the dust collecting surface 110. In general, the direction in which the gas is introduced may be a horizontal direction parallel to the dust collecting surface 110 or a downward to upper direction parallel to the dust collecting surface 110, that is, a parallel vertical direction.

As shown in FIG. 4, when gas containing dust is introduced in a direction parallel to the dust collecting surface 110, the end 120 located on the side into which the gas is introduced is the opposite direction of the dust collecting surface 110, that is, It can be bent to the other side. When the two dust collecting plates 1000 are combined with each other, this protects the configuration such as a pipe installed between the dust collection plates from the gas flowing from the outside, and at the same time guides the incoming gas to the dust collection surface 110 to collect the dust collection surface and the dust collection. It is to easily remove dust while securing uniformity of gas flow distribution between the surfaces.In FIG. 4, both ends of the dust collecting surface 110 in the horizontal direction are bent, but when gas flows from the bottom to the upper side, the lower end Can be bent. However, as in the present embodiment, the present invention is not limited to that the end 120 is bent toward the other side of the dust collecting surface 110, and there may be embodiments in which the end 120 is not bent or omitted.

5 is an enlarged view of a part of FIG. 4.

As shown in FIG. 5, the washing water storage unit 200 is a portion formed on the top of the dust collecting unit 100, and although not shown in FIG. 5, it includes a receiving space for storing washing water therein, and the upper surface 211 It may include at least one or more washing water outlet 210 formed in.

The washing water is supplied to the receiving space of the washing water storage unit 200, and the dust collecting plate including the flow guide surface according to the first embodiment of the present invention is used to inject the washing water into the receiving space of the washing water storage unit 200. It may further include a pipe 300.

As shown in FIG. 5, the pipe 300 may be installed at a side end of the dust collecting unit 100 to inject the washing water into the receiving space of the washing water supply unit 200. However, in the present invention, the location of the pipe 300 is not limited to this embodiment, and the pipe is installed on the opposite side of the dust collecting surface 110 and is connected to the receiving space at the bottom of the central portion of the washing water storage unit 200 for cleaning. There may be embodiments in which water is injected, and in addition to the above-described embodiments, washing water may be injected into the accommodation space of the dust collecting unit 100 by being installed at various locations.

The washing water discharge port 210 is a part where the washing water flowing into the receiving space of the washing water storage unit 200 fills the receiving space and overflows and is discharged naturally, and is discharged to the washing water outlet 210 as shown in FIG. 5. The washed water flows to the dust collecting surface 110 through the upper surface 211 (shown in FIG. 6) as a flow guide surface and a curved surface 212 (shown in FIG. 6) serving as a streamline, and the dust collecting surface 110 Remove dust adsorbed on.

As shown in FIG. 5, a plurality of washing water outlets 210 are formed by being spaced a certain distance in the width direction of the washing water storage unit 200, and are cleaned in the width direction of the dust collecting surface 110 of the dust collecting unit 100 You can make the number evenly distributed. The reason why a plurality of washing water outlets 210 are spaced apart from each other in the width direction of the washing water storage unit 200 is formed so that washing water can be uniformly distributed across the width direction of the dust collecting surface 110 as described above. It is to do.

6 is a dust collecting unit 100 shown in FIG. 5 in order to explain in more detail the additional configuration of the washing water storage unit 200 and the process of the washing water discharged through the washing water outlet 210 and flowing to the dust collecting surface 110 And a cross section of the washing water storage unit 200 is shown.

As illustrated in FIG. 6, the washing water storage unit 200 may further include a water level control panel 220 installed in the middle in the width direction based on the height of the receiving space 240 formed therein.

When the above-described pipe 300 is connected to the side of the washing water storage 200 to inject the washing water into the receiving space 240 of the washing water storage 200, the water level control panel 220 Based on the width direction of 200, there may be a case where the water level on the side close to the pipe (the side to which the pipe is connected) is higher than the water level on the side far from the pipe. In this case, since the washing water may be first discharged from the washing water outlet 210 near the pipe, it may be disadvantageous in forming a water film uniformly over the dust collecting surface 110, and the water level control panel 220 prevents this phenomenon. For.

Therefore, the water level control panel 220 is installed in the receiving space 240 of the washing water storage unit 200 in parallel with the ground, but can be installed so as not to completely block the receiving space 240 of the washing water storage unit 200, In addition, it can be installed so that the height of the side farther from the pipe is higher than the side close to the pipe.

The water level control panel 220 may be mainly used when the pipe 300 for supplying the washing water to the washing water storage unit 200 is connected to the side of the washing water storage unit 200 as in the present embodiment, but the present invention It is not limited and can be used even when the pipe is connected to the center of the washing water storage unit 200 to supply washing water to the receiving space 240 of the washing water storage unit 200, and a single water level control panel 220 A plurality of not, may be installed spaced apart by a predetermined interval in the height direction of the receiving space 240 of the washing water storage unit 200.

The water level control panel 220 illustrated in FIG. 6 may have at least one hole through which the washing water passes, and when there are a plurality of holes formed in the water level control panel 220, the water level control panel 220 is in the width direction. It may be formed at a certain interval.

A process in which the washing unit introduced into the receiving space 240 of the washing water storage unit 200 through a pipe is discharged through the washing water outlet 210 will be described in more detail with reference to FIG. 6. When a certain amount of washing water is injected into the receiving space 240 of the washing water storage unit 200, the receiving space 240 is filled, and the washing water is discharged through the washing water outlet 210 formed on the upper portion of the washing water storage unit 200. Discharged (in the direction of the arrow pointing upward)

The washing water discharged through the washing water outlet 210 is spread out from the upper surface 211, which is a flow guide surface, to the periphery, and this process is shown in FIG. 7.

7 is a view showing a portion of the dust collecting plate including the flow guide surface according to the first embodiment of the present invention viewed from the top, and as shown in FIG. 7, the receiving space of the washing water storage unit 200 is full and is cleaned. The washing water discharged through the water discharge port 210 is uniformly spread and stabilized on the adjacent surface of the washing water discharge port 210, that is, the upper surface 211 of the washing water storage unit 200.

When the washing water uniformly spread from the upper surface 211 is spread over a certain degree, it is blocked by the water blocking plate 230 formed on the other upper side of the washing water storage unit 200, so that it is formed in the opposite direction of the water blocking plate 230. It flows along the curved surface 212 to the dust collecting surface 110. That is, the upper surface 211 and the curved surface 212 serve as a flow guide surface of the washing water and a streamline of the washing water flow, so that a uniform water film can be formed on the dust collecting surface 110.

In addition, the washing water discharged through the washing water outlet 210 is uniformly spread from the upper surface 211 by gravity, and the role of primaryly distributing washing water uniformly between the outlet 210 and the outlet 210, that is, flow Since the washing water serves as a guide surface and is distributed from the upper surface 211 flows to the dust collection surface 110 along the curved surface 212 serving as a streamline, the washing water is not separated from the dust collection surface 110 and Because it flows in contact with the dust collecting surface 211, a very uniform and stable water film is formed on the surface of the dust collecting surface 211, and even if the width of the dust collecting part 100 is widened, the number of washing water outlets 210 needs to be increased as much as it is widened. Since there is no, it is possible to process the washing water outlet 210 relatively economically, and since the washing water outlet 210 is facing upward, it is not affected by the self-weight of the dust collecting plate, so that the durability of the dust collecting plate according to the present invention can be sufficiently secured. There is an effect.

[A dust collecting plate including a flow guide surface according to the second and third embodiments]

Hereinafter, a dust collecting plate including a flow guide surface according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

8 is a cross-sectional view of a dust collecting plate including a flow guide surface according to the second and third embodiments of the present invention, and in more detail, FIGS. 8A and 8B are flow guide surfaces according to the second embodiment of the present invention. 8C is a cross-sectional view of a dust collecting plate including a flow guide surface according to a third embodiment of the present invention.

First, in the dust collecting plate including the flow guide surface according to the second embodiment of the present invention, the upper surface 211 of the washing water storage tank 200 is constant based on the dust collecting surface 110 as shown in FIGS. 8A and 8B. This is an embodiment bent to rotate at an angle.

은 90도 이하의 예각이다. 따라서 세정수 배출구(210)가 형성된 세정수 저장조(200)의 상면(211)은 인접한 물 막음판(230) 사이의 공간에 세정수가 수용되는 2차 수조(213)가 형성하며, 세정수 배출구(210)를 통해 배출된 세정수는 2차 수조(213)에서 먼저 고였다가, 2차 수조(213)의 수위가 상승할 곡면(212)을 통해 집진면(110)으로 흐른다.8A shows the angle between the top surface 211 and the dust collecting surface 110 in the second embodiment of the present invention.

Is an acute angle of 90 degrees or less. Therefore, the upper surface 211 of the washing water storage tank 200 in which the washing water outlet 210 is formed is formed with a secondary water tank 213 in which washing water is accommodated in the space between the adjacent water blocking plates 230, and the washing water outlet ( The washing water discharged through 210 is first collected in the secondary water tank 213 and then flows to the dust collecting surface 110 through the curved surface 212 on which the water level of the secondary water tank 213 is to rise.

That is, in summary, when the upper surface 211 of the washing water storage unit 200 is rotated to be 90 degrees or less with respect to the dust collecting surface 110, the secondary water tank 213 is discharged from the washing water outlet 210. By serving as a buffer for the flow of washing water, a water film can be formed on the dust collecting surface 110 more stably than in the first embodiment described above. In addition, since the washing water flows to the dust collecting surface 110 through the curved surface 212 after filling the space of the secondary water tank 213, the width of the dust collecting surface 110 is not increased even if the number of washing water outlets 210 is not increased. There is an effect of allowing the washing water to flow more evenly throughout.

가 90도 이상인 둔각의 경우가 있을 수 있다. 구체적으로, 본 발명의 제2실시예에 의한 유동안내면을 포함하는 집진판에서 상면(211)과 집진면(110) 사이의 적절한 각도 범위는 10도 이상 170도 이하일 수 있다.However, the present invention does not limit the angle between the upper surface 211 and the dust collecting surface 110 of the washing water storage unit 200 to 90 degrees or less, and the upper surface 211 and the dust collecting surface 110 as shown in FIG. 8B. Angle

There may be cases of an obtuse angle of more than 90 degrees. Specifically, in the dust collecting plate including the flow guide surface according to the second embodiment of the present invention, an appropriate angle range between the upper surface 211 and the dust collecting surface 110 may be 10 degrees or more and 170 degrees or less.

FIG. 8C is an embodiment in which the upper surface 211 and the dust collecting surface 110 on which the washing water outlet 210 is formed do not rotate at a predetermined angle to each other, but forms a secondary water tank 213, as shown in FIG. 8C. 211 is parallel, but the curved surface 212 connecting the upper surface 211 and the dust collecting surface 110 protrudes upward, so that a secondary water tank 213 is formed between the curved surface 212 and the water barrier plate 230 By forming, the same effects as those of the second embodiment of the present invention shown in Figs. 8A and 8B can be obtained.

[Wet electrostatic precipitator according to the first embodiment-horizontal type using discharge electrode]

Hereinafter, a dust collecting plate including a flow guide surface according to a first embodiment of the present invention and a wet electric precipitator using the same will be described in detail with reference to the accompanying drawings.

In the wet electric dust collector according to the first embodiment of the present invention, since the dust collecting plate including the above-described flow guide surface is assembled and used, this will be described first.

9 shows a dust collector plate assembly 2000 in which two dust collector plates 1000 used in the wet electric precipitator according to the first embodiment of the present invention are coupled to each other.

As shown in FIG. 9, in the dust collecting plate assembly 2000, two different dust collecting plates 1000 are combined in a direction opposite to the dust collecting surface 110, that is, facing each other.

There may be various ways in which the two dust collecting plates 1000 are coupled, but in the first embodiment of the present invention, as shown in FIG. 9, the dust collecting plates 1000 are at the curved lateral ends 120 that are in contact with each other. A bolting hole 131 is formed in the bolting plate 130 and the bolting plate 130 protruding in parallel plate shape, and the bolt 132 is coupled to the bolting hole 131, thereby combining different dust collecting plates 1000 The dust collecting plate assembly 2000 may be assembled. However, in the present invention, the method of combining the two dust collecting plates 1000 is not limited to the method of using the bolting plate 130, the bolting hole 131 and the bolt 132 shown in FIG. 9, and the bolting plate ( In the absence of 130), a method of joining the pair of ends 120 to each other through welding may be used.

As shown in FIG. 9, in the first embodiment of the present invention, when assembling a pair of dust collecting plates 1000 different from each other, a plurality of bolting holes 231 are also formed in the water barrier plate 230 which is a part that interviews each other. Then, the bolts 233 may be coupled to each bolting hole 231.

As shown in Figure 9, there is formed an alignment hole 232 having a larger area than the bolting hole 231 in addition to the plurality of bolting holes 231 in the water blocking plate 230, the alignment hole 232 is the present invention When using a plurality of dust collection plate assemblies 2000 shown in FIG. 9 in the wet electric precipitator according to the embodiment of the present invention, a rod is inserted to align/hang the positions of each dust collection plate assembly 2000.

As shown in FIG. 9, a predetermined space may be formed between the pair of dust collecting plates 1000 coupled to each other, and the space required for a pipe 300 or other wet electric dust collector as shown in FIG. 9 Devices can be deployed and used.

10 is a perspective view of a wet electric precipitator 3000 according to the first embodiment of the present invention.

As shown in FIG. 10, the wet electric precipitator 3000 according to the first embodiment of the present invention may include a case 400 and a water collecting part 410 installed under the case 400.

As shown in FIG. 10, the case 400 surrounds some of the upper and side surfaces of the internal configuration of the wet electric precipitator 3000 according to the first embodiment of the present invention, and has an open shape on both sides in the horizontal direction. .

Opened sides of the case 400 serve as a kind of passage through which gas is introduced and discharged, and the above-described dust collecting plate and dust collecting plate assembly may be installed on the gas passage.

As shown in FIG. 10, a part of the discharge electrode frame 510 for voltage application is protruded upward in the case 400, and an insulator 520 is inserted into the protruding discharge electrode frame 510, so that the discharge electrode frame 510 and The case 400 may be insulated.

FIG. 11 is a view showing the wet electric precipitator 3000 according to the first embodiment of the present invention viewed from a different angle than that of FIG. 10, that is, from the lower side to the upper side.

The water collecting part 410 shown in FIG. 11 is a part for collecting the washing water used in the wet electric precipitator 3000 according to the first embodiment of the present invention, and is used inside the case 400 to fall from the upper side to the lower side. It may have an inclined surface to collect washing water.

A storage tank capable of storing washing water, such as a water tank, is connected to a drain hole 411 formed under the water collecting part 410 to recover and store used washing water. The washing water recovered in the water tank is water contaminated by dust, so it can be recycled after being transferred and purified to a separate purification facility or device.

12 shows a state in which the case 400, the water collecting part 410, and the insulator 520 are removed from the wet electric precipitator 3000 shown in FIGS. 10 and 11.

As shown in FIG. 12, the wet electric precipitator 3000 according to the first embodiment of the present invention includes a dust collector plate 1000, a dust collector plate assembly 2000, and a discharge electrode 500, and is not shown in FIG. It may further include a supply unit and a first supply unit.

As shown in FIG. 12, in the wet electric precipitator 3000 according to the first embodiment of the present invention, a dust collecting plate 1000 and a dust collecting plate assembly 2000 are mixed and used. Specifically, two dust collecting plates ( The dust collection plate 1000 may be disposed so that the dust collection surface faces the inside, and the dust collection plate assembly 2000 may be disposed between the dust collection plates 1000 on both sides of the outermost side.

The other surfaces of the two dust collecting plates 1000 disposed outside are in close contact with the inner surfaces of the case 400 to prevent gas for purification from flowing into the space between the dust collecting plate 1000 and the case 400.

As shown in FIG. 12, the dust collection plate assembly 2000 is arranged in parallel at a predetermined distance from each other, and the dust collection plate 1000 disposed at the outermost side with the adjacent dust collection plate assembly 2000 may also be spaced apart and arranged in parallel. In addition, a plurality of discharge electrodes 500 are disposed spaced apart from each other at a predetermined interval in the space therebetween.

The discharge electrode 500 is electrically connected through a voltage application frame 510, and the voltage application discharge electrode frame 510 is electrically connected to a high voltage supply unit (not shown). Corona discharge occurs when DC high voltage is applied to the discharge electrode 500 from the high voltage supply unit, and dust contained in the gas containing gas flowing into the space between the dust collection plates is electrically charged by the corona discharge generated by the high voltage supply unit. Adsorbed on the dust collecting surface.

13 shows the discharge electrode 500 viewed from a direction perpendicular to the gas inflow direction but parallel to the ground.

As shown in FIG. 13, a plurality of discharge electrodes 500 may be installed in a wire shape and spaced apart by a predetermined distance. When the discharge electrode 500 is in the form of a wire, it can be used in industrial applications where it is necessary to collect a relatively large amount of gas.

The first supply unit (not shown) serves to supply the washing water to the washing water supply unit of the dust collecting plate 1000. In the case of the wet electric precipitator 3000 according to the first embodiment of the present invention, since a plurality of dust collecting plates 1000 are used, the washing water storage unit also uses the same number as the number of dust collecting plates 1000. Accordingly, the first supply unit may supply washing water to each washing water storage unit through a distribution pipe (not shown) and a pipe 300 connected in parallel to the distribution pipe.

A flow control valve is installed at the connection portion between the distribution pipe and the pipe, so that the flow rate of the washing water flowing into the washing water supply unit of each of the dust collecting plates can be adjusted.

[Wet electric dust collector according to the second embodiment??Plate discharge electrode, horizontal type]

Hereinafter, a wet electric dust collector according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The second embodiment of the present invention is classified according to the shape of the discharge electrode positioned between the first embodiment and the dust collecting plate assembly, and other configurations are the same. Therefore, only the discharge electrode 500 showing differences between the first and second embodiments will be described below, and other configurations are considered to be the same as the first and second embodiments.

14 is a perspective view of a wet electric precipitator 3000 according to a second embodiment of the present invention, with a case removed.

As shown in FIG. 14, in the second embodiment of the present invention, the discharge electrode 500 has a plate shape, and the discharge electrode 500 is electrically connected to a high voltage supply unit to apply high voltage direct current. The discharge electrode 500 has a plate shape, but has a shape in which a part of the inside is penetrated to include the tip portion 530, in order to more efficiently cause corona discharge through the tip portion 530.

The reason why the shape of the discharge electrode 500 differs between the first and second embodiments is that the use of the first and second embodiments is different. The first embodiment in which the discharge electrode 500 is in the form of a wire is used in an industrial field such as a semiconductor field where it is necessary to remove dust contained in a large amount of gas as described above. In the industrial field, the size of the wet dust collector must also be increased in order to remove dust contained in a large amount of gas, and as the size of the wet dust collector increases, the discharge electrode 500, which needs to apply high voltage direct current, is also generally used and is easy. It can be implemented easily, and it is advantageous to form a relatively inexpensive wire.

Unlike industrial sites, a wet electric precipitator for removing dust contained in a relatively small amount of gas does not need to be enlarged, so it is miniaturized. Therefore, the distance between the dust collecting plate and the dust collecting plate included in the wet electric dust collecting device is inevitably reduced, and it may be difficult to form a discharge electrode with a wire. To solve this problem, when dust contained in a relatively small amount of gas is removed, the discharge electrode may be manufactured and used in a plate shape as in the second embodiment of the present invention.

[Wet electrostatic precipitator according to the third and fourth embodiments-wire/plate type discharge electrode, vertical type]

Hereinafter, a wet electric precipitator according to a third embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The third embodiment of the present invention differs from the first embodiment in that the gas flow direction is in a vertical direction rather than a horizontal direction, and accordingly, a separate configuration is added. Accordingly, the description of the third embodiment of the present invention focuses on a configuration different from that of the first embodiment, and the configuration of the third embodiment, which is not described, is regarded as the same if the configuration is the same name or the same drawing number as the first embodiment.

First, a description will be given of a dust collecting plate assembly used in a third embodiment of the present invention.

15 shows a dust collecting plate assembly 2000 used in the third embodiment of the present invention.

As shown in FIG. 15, the dust collection plate assembly 2000 is a combination of two different dust collection plates 1000 together. Like the dust collection plate assembly 2000 described above, the other side of the dust collection plate 1000, that is, the side opposite to the dust collection surface To face each other. However, since the dust collecting plate 1000 shown in FIG. 16 is used for a vertical wet electric precipitator through which gas flows from the lower side to the upper side, the lower and upper ends may be bent to the other side instead of the side ends. And through the bolting plate 130 protruding to the upper side, the bolting hole 131 formed in the bolting plate 130 and the bolt 132 coupled to the bolting hole 131, different dust collecting plates 1000 may be coupled. .

In the dust collecting plate assembly 2000 shown in FIG. 15, the pipe 300 is disposed between the two dust collecting plates 1000 and connected at a lower center of the washing water supply unit to supply washing water.

16 shows a wet electric precipitator 3000 according to a third embodiment of the present invention.

As shown in FIG. 16, the wet electric precipitator 3000 according to the third embodiment of the present invention is surrounded by a case 400 opened in the vertical direction, and gas proceeds from the bottom of the case 400 to the upper side. do.

In the third embodiment, the washing water falls from the upper side to the lower side, whereas the gas flows in from the lower side to the upper side, so that the directions of the washing water and the gas are opposite to each other, it can be called a counter flow type. In the second embodiment, the washing water falls from the upper side to the lower side, but the gas flows in a horizontal direction so that the washing water and the gas cross each other in a vertical direction, so that it can be referred to as a cross flow type.

FIG. 17 shows the inside of the wet electric precipitator 3000 according to the third embodiment of the present invention by removing the case 400 from FIG. 16.

As shown in FIG. 17 and described above, since the dust collecting plate of the dust collecting plate assembly 2000 used in the third embodiment of the present invention is bent to the other side, a pipe is installed between the dust collecting plate and the dust collecting plate, Washing water is supplied from the bottom of the center to the inner space.

As shown in FIG. 17, the wet electric precipitator 3000 according to the third embodiment of the present invention may further include a preliminary removal unit 600.

18 shows that the preliminary removal part 600 is viewed from the lower side.

As shown in FIG. 18, the preliminary removal unit 600 may include a plurality of pipes 610 and a plurality of nozzles 620 installed in the length direction of each of the pipes 610. The pipe 610 is a type of pipe with an empty inside, and may receive washing water from the second supply unit.

The nozzle 620 is a part through which the washing water supplied from the second supply unit is sprayed through the pipe 610, and the preliminary removal unit 600 primarily removes dust contained in the introduced gas by spraying the washing water to the surroundings. Plays a role. That is, in the third embodiment of the present invention, the dust collection efficiency can be further increased by lowering the concentration of dust contained in the gas introduced from the preliminary removal unit 600 before electrostatically collecting the gas.

Although the preliminary removal unit 600 in the first and second embodiments described above is not shown, preliminary removal at the side where gas is introduced, that is, the front end, even in a cross-flow type such as the first or second embodiment. It is installed to reduce the concentration of dust firstly, and then the dust can be removed electrostatically.

19 shows a wet electric precipitator 3000 according to a fourth embodiment of the present invention.

The difference between the fourth embodiment of the present invention shown in FIG. 19 and the third embodiment is that the discharge electrode 500 is a plate shape, which is the same as the relationship between the first and second embodiments, and the shape of the discharge electrode 500 Except for the difference, since the third and fourth embodiments are the same, a separate description of the fourth embodiment will be omitted.

The present invention is not limited to the above-described embodiments, and of course, various modifications can be made without departing from the gist of the present invention as claimed in the claims.

10: dust collecting plate
20: discharge electrode
30: high voltage generator
40: water tank 41: washing hole
100: dust collection unit 110: dust collection surface
120: end 130: bolting plate
131: bolting hole 132: bolt
200: washing water storage unit 210: washing water outlet
211: upper surface (internal surface) 212: curved surface (streamline)
213: secondary tank 220: water level control panel
230: water blocking plate 240: accommodation space
300: piping
400: case 410: water collecting unit
411: drain
500: discharge electrode 510: discharge electrode frame
520: insulator 530: tip
600: preliminary removal unit 610: pipe
620: nozzle
1000: dust collecting plate
2000: dust collecting plate assembly
3000: wet electric dust collector

Claims (18)

A dust collecting unit in which dust is adsorbed on a dust collecting surface located on one side of an erected plate shape;
A washing water storage unit formed above the dust collecting unit to store washing water, and having at least one washing water discharge port formed on an upper surface thereof; And
A washing water supply unit supplying washing water to the washing water storage unit;
Including,
The washing water injected into the receiving space of the washing water storage unit and discharged to the washing water outlet is spread from the upper surface serving as a flow guide surface, and then descends along the dust collecting surface to remove dust. Dust collecting plate.
The method of claim 1,
A dust collecting plate including a flow guide surface, wherein one end of the upper surface of the washing water storage unit is connected to the dust collecting surface.
The method of claim 2,
A dust collecting plate including a flow guide surface, characterized in that a portion connecting the upper surface of the washing water storage unit and the dust collecting surface is curved.
The method of claim 3,
A dust collecting plate including a flow guide surface, wherein the upper surface of the washing water storage unit is rotated within a range of 10 degrees or more and 170 degrees or less with respect to the dust collection surface.
The method of claim 3,
A dust collecting plate including a flow guide surface, wherein the curved surface protrudes upward and the upper surface of the washing water storage unit is located below the curved surface.
The method of claim 2,
The washing water storage unit further comprises a water blocking plate formed upward at the other end of the upper surface, the dust collecting plate including a flow guide surface.
The method of claim 1,
A dust collecting plate including a flow guide surface, wherein the washing water storage unit extends in a width direction of the dust collecting unit.
The method of claim 7,
A dust collecting plate including a flow guide surface, wherein a plurality of the washing water discharge ports are formed on the upper surface of the washing water storage unit in a width direction of the dust collecting unit and spaced at a predetermined interval.
The method of claim 1,
A dust collecting plate including a flow guide surface, further comprising a pipe coupled to be connected to the receiving space of the washing water storage unit and passing the washing water injected into the washing water storage unit.
The method of claim 1,
The dust collecting plate including a flow guide surface, characterized in that the end of the dust collecting portion is bent in the gas flow.
The method of claim 1,
The washing water supply unit
A dust collecting plate comprising a flow guide surface in the shape of a plate, further comprising a water level control panel installed in the receiving space in the width direction to uniformly adjust the level of the washing water that is injected into the receiving space.
The method of claim 11,
The water level control panel is a dust collecting plate including a flow guide surface, characterized in that formed through at least one hole.
At least one dust collecting plate according to any one of claims 1 to 12 for collecting gas flowing in the horizontal direction;
A discharge electrode disposed to be spaced apart from the dust collecting plate by a predetermined distance; And
A high voltage supply unit for applying a voltage to the discharge electrode;
Wet electric precipitator comprising a.
At least one dust collecting plate according to any one of claims 1 to 12 for collecting gas flowing from the lower side to the upper side;
A discharge electrode disposed to be spaced apart from the dust collecting plate by a predetermined distance; And
A high voltage supply unit for applying a voltage to the discharge electrode;
Wet electric precipitator comprising a.
The method of claim 13 or 14,
If there are more than one dust collecting plate,
The dust collection plate located at the outermost side is arranged so that the dust collection surface faces the inside,
A pair of dust collecting plates located between the dust collecting plates located at the outermost side are coupled to each other, and the dust collecting surface is coupled to face the outside.
The method of claim 15,
A wet electric precipitator, characterized in that the end portions of the pair of dust collecting plates coupled to each other contact each other and coupled to each other.
The method of claim 13 or 14,
The discharge electrode is a wet electric dust collector, characterized in that the wire or plate shape.
The method of claim 13 or 14,
A wet electric precipitator further comprising a preliminary removal unit disposed at a front end of the dust collecting plate based on a path through which gas is introduced to remove dust by spraying water.

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