KR101967985B1 - Electric precipitating panel having water screen - Google Patents

Abstract

The present invention relates to a water type electrostatic dust collecting plate, and more particularly, At least one dispersion plate spaced apart from an upper end of one surface of the electric dust collecting unit to form a dispersion space having a predetermined thickness between the surface of the electric dust collecting unit and one surface of the electric dust collecting unit; And a cleaning liquid supply pipe for supplying a cleaning liquid having a pressure to the dispersion space.
Thus, it is possible to easily form a water film on the entire surface of the electric dust collecting plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-film-type electric dust collector, and more particularly, to a water-film-type electric dust collector capable of easily forming a water film on the entire surface of an electric dust collector.

Gas discharged from industrial facilities such as incinerators and factories often contains large amounts of fine dust harmful to human bodies. Therefore, it is necessary to remove fine dust contained in the exhaust gas by using a dust collector.

The dust collector is divided into an electric dust collecting type or a filtration type. Among them, the dust collector of the electrostatic precipitator generates a discharge at a high voltage to generate ions, charges the fine dust by the ions, and then collects the charged fine dust by an electric dust collecting plate which generates electrostatic attractive force.

However, as the dust collecting process proceeds and the amount of fine dust collected on the electric dust collecting plate increases, the efficiency of collecting dust decreases. Therefore, in order to maintain high dust collecting efficiency, it is necessary to remove fine dust adhering to the dust collecting plate.

Conventionally, in order to remove fine dust adhering to the electric dust collecting plate, a method of hitting the electric dust collecting plate with a hammer, a method of spraying a cleaning liquid onto the electric dust collecting plate, or a method of forming a water film on the electric dust collecting plate has been used. The dust that has been attached to the electric dust collecting plate may be scattered again so that the scattered dust may be discharged together with the gas, the noise is generated, and the method of spraying the cleaning liquid has a problem that the fine dust adhered to the dust collecting plate is scattered again.

The method of forming the water film does not cause the problem of scattering the fine dust while removing the fine dust adhered to the electric dust collecting plate. On the other hand, the disadvantage that the fine dust is not completely removed from the electric dust collecting plate when the water film is not formed entirely on the electric dust collecting plate .

The present applicant filed an application filed on Nov. 29, 2011, entitled " Electrostatic Precipitator with Hydrophilic Dust Collector for Hydrothermal Formation " in order to solve the above problems in a method of removing fine dust adhering to the electrostatic precipitator by forming a water film And registered on August 07, 2012 (Registration No. 10-1173496).

The electrostatic precipitator of the above reference No. 10-1173496 includes an electrostatic precipitator for collecting and collecting fine particles in the exhaust gas and forming a water film on the dust collecting plate. The electrostatic precipitator forms a water film at the time of dust collection to remove fine particles continuously collected And a dust collecting plate (20, 20 ') having a cleaning liquid supply port (23) formed with a hydrophilic treatment and a plurality of holes for supplying a cleaning liquid to form a water film on the front surface (21) 5); The cleaning liquid is temporarily sprayed to the water film type hydrophilic dust collecting plate 5 and the discharge electrode 2 to supply a cleaning liquid to the dust collecting surfaces of the dust collecting plates 20 and 20 ' And a cleaning liquid spraying means (6) for guiding the liquid to be sprayed and forming the discharge electrode (2), and cleaning and cooling the discharge electrode (2).

The entire surface of the water-film type hydrophilic dust-collecting plate is uniformly supplied with a cleaning liquid through a plurality of water-cleaning liquid supply ports, and the supplied cleaning liquid is further dispersed by the hydrophilic property of the whole surface of the water-

As described above, the electrostatic precipitator of the above-mentioned Registration No. 10-1173496 can form a water film on the entire front surface of the electric dust collecting plate. However, it is troublesome to perform the hydrophilic treatment on the electric dust collecting plate.

KR 10-1105306 B1 KR 10-0942824 B1 KR 10-1173496 B1

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a water-film-type electric dust collector capable of forming a water film on the entire surface of an electric dust collecting plate without requiring a separate operation such as hydrophilic treatment on the electric dust collecting plate. .

It is another object of the present invention to provide a water-based electrostatic precipitator capable of controlling the efficiency of removing fine dust attached to an electrostatic precipitator by adjusting the thickness of a water film formed on the electrostatic precipitator.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems that are not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an electrostatic precipitator comprising: an electrostatic precipitator formed in a plate shape and vertically erected; At least one dispersion plate spaced apart from an upper end of one surface of the electric dust collecting unit to form a dispersion space having a predetermined thickness between the surface of the electric dust collecting unit and one surface of the electric dust collecting unit; And a cleaning liquid supply pipe for supplying a cleaning liquid having a pressure to the dispersion space.

A cleaning liquid supply hole is formed in the electric dust collection unit, the cleaning liquid supply hole having one end located on one surface of the electric dust collection unit and the other end positioned on the other surface of the electric dust collection unit so as to communicate with the dispersion space, .

The water-film-type electrostatic precipitator may further include a blocking plate for closing the upper end of the dispersion space.

An inverting plate protruding from one surface of the electric dust collection unit may be disposed at an upper end of the electric dust collection unit.

Preferably, the membrane-type electrostatic precipitator further comprises thickness adjusting means for adjusting the thickness of the dispersion space by moving the dispersion plate to the electrostatic precipitator.

The thickness adjusting means may include a nut hole formed in the electric dust collection unit, an adjustment bolt penetrating the dispersion plate and coupled to the nut hole and having a fixing base for supporting one surface of the dispersion plate, And a fixing nut for supporting the other surface of the dispersion plate.

The dispersion plate may be formed rotatable in place, and a rotation groove inclined with respect to a radial direction of the dispersion plate may be formed on one surface of the dispersion plate facing the electric dust collection unit.

Dispersion grooves may be formed on one surface of the dispersion plate opposite to the electric dust collection unit so as to be separated from the central portion of the dispersion plate toward the edge portion.

The dispersion plate is formed to extend in the width direction of the electric dust collection unit, and a plurality of cleaning liquid supply pipes may be disposed per dispersion plate.

According to the water-film-type electric dust collector of the present invention, it is possible to form a water film evenly on the entire surface of the electric dust collecting plate without performing any other operation such as hydrophilic treatment on the electric dust collecting plate.

The control of the pressure of the cleaning liquid forming the water film in the membrane type electrostatic dust collecting plate or the dispersion and discharge of the cleaning liquid in the direction of the direction increases the effect of forming the water film evenly over the entire surface of the electric dust collecting plate.

In the dust collecting panel, only the minimum configuration is provided on the surface where the dust collecting operation is performed, so that the efficiency of fine dust removal can be improved.

In addition, the present invention can control the efficiency of fine dust removal attached to the electric dust collection plate by controlling the thickness of the water film formed on the electric dust collection plate and the pressure of the cleaning liquid forming the water film.

And it is possible to prevent the washing liquid which forms the water film on the electric dust collecting plate from flowing out to the outside of the electric dust collecting plate.

1 is a perspective view of a membrane type electrostatic precipitator according to the present invention,
FIG. 2 is a cross-sectional view of the above-
FIG. 3 is an explanatory view of a reversal plate of the above-
FIG. 4 is an explanatory diagram of a case in which the thickness-type electrostatic precipitator is provided with a thickness adjusting means;
Fig. 5 is an explanatory diagram of a case where the dispersion plate of the water-film type electrostatic precipitator is provided with a rotation groove,
FIG. 6 is an explanatory view of a case where the dispersion plate of the water film type electrostatic precipitator includes dispersion grooves. FIG.

The details of the embodiments are included in the detailed description and the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will become clearer with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

The present invention relates to an electric dust collector for generating an electrostatic attracting force in an electrostatic precipitator for collecting fine dust particles charged with ions by electrostatic attraction.

1 is a perspective view of a water-based electrostatic precipitator 1 according to the present invention, and FIG. 2 is a cross-sectional view of the water-based electrostatic precipitator 1.

A water-film-type electric dust collector 1 according to the present invention mainly comprises an electric dust collection unit 10, at least one dispersion plate 20, and a cleaning liquid supply pipe 30.

The electrostatic dust collecting unit 10 is a main body of the electrophoretic particle collecting plate 1 of the present invention. The electrostatic dust collecting unit 10 has a wide plate shape and is vertically disposed in the electrostatic precipitator. The electrostatic dust collecting unit 10 receives electrostatic attraction by applying a high voltage. For this purpose, the electrostatic dust collecting unit 10 includes a metal material or a metal material through which a current can flow smoothly.

At least one dispersing plate (20) is disposed on the upper end of one surface of the electric dust collecting unit (10) where the dust collecting operation takes place. The dispersion plate 20 is disposed parallel to the electric dust collecting unit 10 and spaced apart from the electric dust collecting unit 10 by a short distance of about 0.5 mm from the surface of the electric dust collecting unit 10, Thereby forming a dispersion space S. The edge of the dispersion space S is formed in an open state.

The dispersion plate 20 is formed in a smaller size than the electrostatic dust collecting unit 10 so as not to cover an excessively large area on one surface of the electrostatic dust collecting unit 10 where the dust collecting operation is performed. 1, the dispersion plate 20 may be formed in a circular shape or a polygonal shape such as a square or a hexagon, and is fixed to the electric dust collection unit 10 by welding or bolt joining.

When a plurality of the dispersion plates 20 are formed, as shown in FIG. 1, it is preferable that the dispersion plates 20 are arranged along the width direction of the electric dust collecting unit 10 at equal intervals.

The cleaning liquid supply pipe 30 serves to supply the cleaning liquid to the dispersion space S formed between the electric dust collecting unit 10 and the dispersion plate 20. The cleaning liquid is supplied to the dispersion space S under pressure using a pump (not shown), a nozzle, or the like.

According to the above-mentioned water film type electrostatic precipitator 1 of the present invention, the cleaning liquid injected into the dispersion space S by the cleaning liquid supply pipe 30 is reduced in the thickness of the dispersion space S by the small thickness of the dispersion space S And is discharged to the outside of the dispersion space S at a high pressure in the form of a thin water film having a thickness of about 5 mm. The discharged cleaning liquid is discharged far from the dispersion space (S), and the cleaning liquid exerts excellent cleaning power by the pressure of the cleaning liquid.

Accordingly, even if the electrostatic dust collecting unit 10 is not subjected to hydrophilic treatment such as sandblasting or titanium dioxide coating, the cleaning liquid can be uniformly dispersed throughout the entire surface of the electrostatic dust collecting unit 10, It is possible to manufacture the film-type electrostatic precipitator 1 to be used.

The reason that the dispersing plate 20 is positioned at the upper end of the electric dust collecting unit 10 is that the washing liquid discharged to the outside of the dispersing space S flows more smoothly toward the lower end of the electric dust collecting unit 10 due to its weight, Because.

A cleaning liquid supply hole (11) may be formed in the electric dust collection unit (10).

The cleaning liquid supply hole 11 is formed by penetrating the electrostatic dust collecting unit 10 in the thickness direction of the electrostatic dust collecting unit 10 at a position overlapping the dispersion plate 20. That is, one end of the cleaning liquid supply hole 11 is located on one side of the electric dust collecting unit 10 and the other end is located on the other side of the electric dust collecting unit 10 so as to communicate with the dispersion space S. At this time, the cleaning liquid supply pipe (30) is connected to the other end of the cleaning liquid supply hole (11).

In this case, since the cleaning liquid supply pipe 30 is located in the opposite direction to the one side of the dust collecting operation performed in the electric dust collecting section 10, the cleaning liquid supply pipe 30 prevents the one surface of the electric dust collecting section 10 from reducing the area And the portion of the cleaning liquid supply pipe 30 is not exposed to the fine dust.

The film-type electrostatic precipitator 1 according to the present invention may be further formed with a blocking plate 40.

As described above, the dispersion plate 20 is located at the upper end of the electrostatic dust collecting unit 10, and the cleaning liquid sprayed in the dispersion space S flows mainly downward, thereby cleaning one surface of the electrostatic dust collecting unit 10. The cleaning liquid discharged to the upper end of the dispersion space S can be dispersed to the upper portion of the electric dust collecting unit 10 beyond the upper end of the electric dust collecting unit 10. [

The blocking plate 40 closes the upper end of the dispersion space S and serves to prevent the cleaning liquid from being dispersed toward the upper end of the electric dust collection unit 10. [

The blocking plate 40 may be integrally formed with the dispersion plate 20 as shown in FIG. 2, but may be separately formed and joined to the electric dust collection unit 10 by a separate bonding means. When the dispersing plate 20 and the blocking plate 40 are separately formed, a packing is disposed between the dispersing plate 20 and the blocking plate 40 so that the gap between the dispersing plate 20 and the blocking plate 40 is filled with a cleaning liquid Out.

Another method for preventing the washing liquid from being dispersed to the upper portion of the electric dust collecting unit 10 is to dispose the reversing plate 50 at the upper end of the electric dust collecting unit 10. [

Fig. 3 is an explanatory view of such an inversion plate 50. Fig.

The reversing plate 50 is protruded from the upper surface of the electric dust collecting unit 10. The reversing plate 50 blocks the flow of the washing liquid discharged through the upper end of the dispersion space S so that the washing liquid does not spread over the top of the electric dust collecting unit 10. In addition, the cleaning liquid impinging on the reversing plate 50 flows in the direction of movement from the bottom to the bottom so that the cleaning effect is further enhanced.

The reversing plate 50 may be formed at the upper end as well as the upper end of the electric dust collecting unit 10 to prevent the washing liquid from being dispersed to the outside of the electric dust collecting unit 10.

The electrophoretic particle collecting plate 1 according to the present invention may further comprise a thickness adjusting means for adjusting the thickness of the dispersion space S.

The thickness adjusting means adjusts the thickness of the dispersion space (S) by moving the dispersion plate (20) with respect to the electric dust collecting part (10).

It is possible to control the thickness of the water film formed on one surface of the electrostatic dust collecting unit 10 because the cleaning liquid is discharged from the dispersion space S as the thickness of the dispersion space S is adjusted by the thickness adjusting means, It is possible to adjust the cleaning force for the cleaning blade 10 as well.

More specifically, the thickness adjusting means may include a nut hole 61, an adjusting bolt 62, and a fixing nut 63.

Fig. 4 is an explanatory view of this thickness adjusting means.

The nut hole 61 is formed to penetrate the electric dust collecting part 10 in the thickness direction of the electric dust collecting part 10 and the adjusting bolt 62 penetrates the dispersion plate 20 and is fastened to the nut hole 61 . The adjusting bolt 62 has a fixing base 62a protruding in a radial direction at a position between both ends in the longitudinal direction and contacting one surface of the dispersion plate 20. The fixing nut 63 is fixed to the adjusting bolt 62 And is in contact with the other surface of the dispersion plate 20.

When the adjustment bolt 62 is rotated in one direction or the other direction to adjust the length of the adjustment bolt 62 inserted into the nut hole 61, the fixing base 62a of the adjustment bolt 62 is inserted into the electric dust collection unit 10 So that the gap between one surface of the electrostatic dust collecting unit 10 and the surface of the dispersion plate 20 on which one surface is supported by the fixing table 62a can be adjusted.

If the fixing nut 63 is fastened to the adjustment bolt 62 after the gap between the dispersion plate 20 and the electric dust collection unit 10 is adjusted and the other surface of the dispersion plate 20 is supported by the fixing nut 63, (20) is fixed in a state of being spaced apart from the electric dust collecting part (10).

The blocking plate 40 is formed in a separate structure from the dispersion plate 20 so that the dispersion plate 20 is separated from the electrostatic dust collection unit 10 It is preferable to maintain the fixed state so as to be able to close the upper end of the dispersion space S continuously. The blocking plate 40 allows the dispersion plate 20 to protrude from one surface of the electrostatic dust collecting unit 10 by a maximum distance that the dispersion plate 20 is spaced apart from the electrostatic dust collecting unit 10, considering that the dispersion plate 20 moves.

The pressure of the cleaning liquid supplied from the cleaning liquid supply pipe 30 can be adjusted.

In this case, since the pressure of the washing liquid discharged from the dispersion space S is also adjusted, the washing power for the electric dust collecting unit 10 can be adjusted. When the thickness of the water film formed by discharging the cleaning liquid in the dispersion space S is adjusted by the thickness adjusting means, the pressure of the cleaning liquid supplied from the cleaning liquid supply pipe 30 is adjusted together, It is also possible to control the thickness of the water film without changing the pressure of the cleaning liquid.

Adjustment of the cleaning liquid pressure supplied from the cleaning liquid supply pipe 30 can be adjusted by changing the nozzle or changing the output of the pump (not shown).

The dispersion plate 20 is rotatable in place and a rotation groove 22 inclined with respect to a radial direction of the dispersion plate 20 is formed on one surface of the dispersion plate 20 facing the electric dust collection unit 10, Can be formed.

Fig. 5 is an explanatory view of this case.

When the cleaning liquid is discharged along the rotation grooves 22 inclined with respect to the radial direction of the dispersion plate 20, the cleaning liquid moves in the radial direction and the circumferential direction of the dispersion plate 20, The dispersing plate 20 is rotated in place by the circumferential component force applied to the inner surface of the rotary groove 22. [

Accordingly, the cleaning liquid discharged between the dispersion plate 20 and the electric dust collecting unit 10 is not discharged only in a certain direction, and the direction of movement is continuously changed while being rotated so that the electric dust collecting unit 10 can be cleaned more effectively have.

Dispersion grooves 21 may be formed on one surface of the dispersion plate 20 facing the electric dust collection unit 10.

FIG. 6 is an explanatory view of a dispersion plate 20 having such a dispersion groove 21. As shown in FIG.

The dispersion grooves 21 are formed in a shape that is separated from the central portion of the dispersion plate 20 toward the edge portion to guide the flow of the cleaning liquid supplied into the dispersion space S through the cleaning liquid supply pipe 30. [ That is, the cleaning liquid is discharged from the entire circumference of the dispersion space (S), so that the cleaning liquid is dispersed evenly on one surface of the electrostatic precipitator (10).

6, the blocking plate 40 is formed integrally with the dispersion plate 20 and the dispersion grooves 21 are formed in the center of the dispersion plate 20 in order to discharge the cleaning liquid to the side and bottom of the dispersion space S. [ And it is seen that it is formed into a shape which is split toward the side and the lower edge.

The dispersion plate 20 is formed to be elongated in the width direction of the electric dust collecting unit 10. At this time, a plurality of cleaning liquid supply pipes 30 may be disposed per dispersion plate 20.

In FIG. 7, the electric dust collecting plate 1 is illustratively provided with a dispersing plate 20 having a length substantially equal to the widthwise length of the electric dust collecting unit 10.

When the dispersing plate 20 is elongated as described above, it is possible to reduce the installation position of the dispersing plate 20, thereby making it easier to manufacture the electric collecting plate 1, So that the cleaning liquid can be dispersed more evenly.

When the electrophotographic dust collector 1 of the present invention constitutes an electrostatic dust precipitator, a plurality of the electrostatic dust collectors are arranged in parallel to increase the area of the dust collecting operation, thereby increasing the efficiency of the dust collecting operation.

The film-type electrostatic precipitator 1 is arranged alternately in parallel with a discharge plate (not shown) for generating ions or disposed behind the discharge plate so as to be in contact with fine dust charged by ions.

The cleaning liquid after cleaning the film-type electrostatic precipitator 1 is collected to be introduced into a cleaning liquid tank (not shown) disposed at the lower portion of the water-film-type electrostatic precipitator 1, and is then used again for cleaning the electrostatic precipitator .

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1: Electrodeposited plate
10: electric dust collector
11: Cleaning liquid supply hole
20: Dispersion plate
21: Dispersion groove
22: Rotary groove
30: cleaning liquid supply pipe
40: Blocking plate
50: reverse plate
61: Nut hole
62: Adjustment bolt
62a:
63: Fixing nut
S: distributed space

Claims (9)

An electric dust collection unit formed in a plate shape and vertically erected and disposed;
At least one dispersing plate spaced apart from an upper end of one surface of the electric dust collecting part and forming a gap-like dispersing space between the surface of the electric dust collecting part and one surface of the electric dust collecting part; And
And a cleaning liquid supply pipe for pressurizing the cleaning liquid into the dispersion space,
Wherein a dispersion groove is formed on one surface of the dispersion plate facing the electric dust collection unit so as to be separated from a central portion of the dispersion plate toward an edge portion.
The method according to claim 1,
A cleaning liquid supply hole is formed in the electric dust collection unit, the cleaning liquid supply hole having one end located on one side of the electric dust collection unit and the other end positioned on the other side of the electric dust collection unit,
Wherein the cleaning liquid supply pipe is connected to the other end of the cleaning liquid supply hole.
The method according to claim 1,
And a blocking plate for closing the upper end of the dispersion space.
The method according to claim 1,
Wherein an inverted plate protruding from one surface of the electric dust collection unit is disposed at an upper end of the electric dust collection unit.
The method according to claim 1,
Further comprising thickness adjusting means for adjusting the thickness of the dispersion space by moving the dispersion plate to the electric dust collection unit.
6. The method of claim 5,
Wherein the thickness adjusting means comprises:
A nut hole formed in the electric dust collecting part,
An adjusting bolt penetrating through the dispersing plate to be coupled to the nut hole and having a fixing base for supporting one surface of the dispersing plate;
And a fixing nut fastened to the adjustment bolt to support the other surface of the dispersion plate.
The method according to claim 1,
Wherein the dispersion plate is rotatably formed in place,
Wherein a rotating groove inclined with respect to a radial direction of the dispersion plate is formed on one surface of the dispersion plate facing the electric dust collection unit.
delete The method according to claim 1,
Wherein the dispersion plate is elongated in the width direction of the electric dust collector,
Wherein a plurality of the cleaning liquid supply pipes are disposed per one of the dispersion plates.

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