WO2019231264A2

WO2019231264A2 - Wet electric dust collecting apparatus and device for installing discharge electrodes therefor

Info

Publication number: WO2019231264A2
Application number: PCT/KR2019/006530
Authority: WO
Inventors: 박상언
Original assignee: (주)벨트란코리아
Priority date: 2018-05-31
Filing date: 2019-05-30
Publication date: 2019-12-05
Also published as: WO2019231264A3

Abstract

The present invention relates to a wet electric dust collecting apparatus and a device for installing discharge electrodes therefor. According to an aspect of the present invention, disclosed is a wet electric dust collecting apparatus comprising: a dust collecting main body having a vertical shape with a gas inlet provided in the lower part thereof for receiving a target dust collecting gas and a gas outlet provided in the upper part thereof for discharging a gas on which dust collecting is performed; a plurality of dust collecting cells provided in a vertical direction on the upper inner side of the dust collecting main body; a fog nozzle provided between the gas inlet and the plurality of dust collecting cells; upper and lower cleaning nozzles provided in the upper side and the lower side of the dust collecting cells and spraying cleaning liquid toward the dust collecting cells; and a pollutant discharge hole provided in the lower side of the vertical-shaped main body, wherein each dust collecting cell includes a hollow dust collecting electrode having a polygonal flat surface shape and extending vertically and a rod-shaped discharge electrode provided in a longitudinal direction inside the dust collecting electrode, and the top end and the bottom end of the discharge electrode are respectively fixed to the upper and lower beam-shaped installation members which are provided in the upper and lower portions of the dust collecting electrode.

Description

Wet electrostatic precipitator and discharge electrode installation device therefor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet electrostatic precipitator and an apparatus for installing a discharge electrode therefor, wherein the water film in the dust collecting electrode is formed by droplets of the cleaning liquid sprayed through a fog nozzle while taking a vertical upflow dust collecting structure. The present invention relates to a wet electrostatic precipitator and a discharge electrode installation mechanism therefor, which are configured to accurately obtain an electrostatic precipitating effect and a cleaning effect by accurately positioning a discharge electrode at a center position of the electrode.

The electrostatic precipitator is a device that charges particles such as dust and mist by corona discharge using electrostatic force and moves and collects them on the surface of the collecting electrode by an electric field. Depending on the purpose of use, they are classified into dry electrostatic precipitators and wet electrostatic precipitators.

In addition to heavy oil combustion boilers, power plants, cement kilns, glass melting furnaces, steelmaking furnaces and incinerators are mainly used to remove contaminants where large amounts of dust are emitted.

The electrostatic precipitator has a structure of an electrode composed of a discharge electrode and a collecting electrode.

When a voltage higher than the voltage that can destroy the electrical insulation of the inlet gas is applied to the discharge electrode, cations or electrons are generated by the corona discharge phenomenon, and the air or gas molecules in the space between the electrodes are ionized by the generated charges.

At this time, if the flow of ionized gas is impregnated gas, the contained particulate matter (dust) is electrically charged, and the charged particulate matter is attached to the collecting electrode by electric force to remove dust in the impregnated gas. Will be removed.

Recent environmental regulations have increased the need to capture and remove submicron-sized ultrafine dust and mist.

However, the dry electrostatic precipitator has a limitation in collecting and removing ultrafine dust and mist because it is difficult to collect high or low resistance dust.

The importance of the wet electrostatic precipitator is being emphasized as the environment changes.

The wet electrostatic precipitator has the advantage of reducing dust scattering and back corona problems by collecting ultra-fine dust particles in the water film formed on the collecting electrode and flowing down.

As an example of the prior art of a wet electrostatic precipitator, a wet electrostatic precipitator of a monthly cleaning method has been proposed in Korean Patent Registration 10-0694618 (registered on March 07, 2007). The prior art is configured to clean the inner circumferential surface of the hollow tube dust collector plate while the water stored on the outside of the hollow tube dust collector plate flows over the top of the dust collector plate, and the overflowed water forms a water film on the dust collector plate.

As another example of the prior art, Korean Patent Registration 10-1420508 (registered on July 10, 2014) has been proposed an ionized wet electrostatic precipitator. The prior art is configured such that a plurality of cylindrical dust collecting plates are installed vertically between the upper tank and the lower tank, and the circulation water in the upper tank is overflowed at the upper end of the collecting plate to form a water film on the inner circumferential surface of the collecting plate.

In the prior art, when a high voltage is applied to the discharge rod located inside the dust collecting plate, the discharge rod becomes a (-) electrode and the dust collecting plate becomes a (+) electrode, and a corona discharge is generated between the discharge rod and the dust collecting plate and an electric field between the collecting plate and the discharge rod. Will form. At this time, the dust, mist, etc. contained in the gas flowing along the inner circumferential surface of the dust collecting plate is induced to have a (-) charge, and then moved to the water film of the dust collecting plate which is the (+) electrode and then moved to the lower tank along the water film to be removed. .

By the way, the above-described conventional techniques can obtain a good electrostatic precipitating effect and a cleaning effect only when the uniform water film is formed on the inner surface of the dust collecting plate. However, there was a limitation in that the cleaning liquid flow for forming the water film may not be uniform depending on the surface and shape characteristics of the overflow portion.

In addition, the prior art exemplified above is a structure in which the discharge rod is installed in the center of the dust collecting plate by a hanger means, and thus, as shown in FIG. In case of eccentricity, the electric field formed by the discharge electrode and the dust collecting plate becomes nonuniform, and thus the electric dust collecting effect may be reduced.

The present invention has been made in view of the above problems, taking a vertical upflow dust collection structure, the water film in the dust collecting electrode is formed by the droplets of the cleaning liquid sprayed through the fog nozzle, the center of the dust collecting electrode It is an object of the present invention to provide a wet electrostatic precipitator and a discharge electrode mounting apparatus therefor, which are configured to accurately obtain an electrostatic precipitating effect and a cleaning effect by having the discharge electrode accurately positioned.

According to an aspect of the present invention for achieving the above object, a vertical type dust collecting body having a gas inlet through which the dust collecting target gas flows in the lower portion and a gas outlet through which the gas being collected is discharged; A plurality of dust collecting cells installed in a vertical direction on an upper side of the inside of the dust collecting body; An atomization nozzle installed between the gas inlet and the plurality of dust collecting cells; Upper and lower cleaning nozzles installed above and below the dust collecting cell to spray the cleaning solution toward the dust collecting cell; And a pollutant outlet disposed at a lower side of the vertical main body, wherein each of the dust collecting cells has a polygonal planar shape and a hollow dust collecting electrode extending up and down, and a length direction inside the dust collecting electrode. It includes a rod-shaped discharge electrode is installed along the wet electrostatic precipitator, characterized in that the top and bottom of the discharge electrode is fixed to the upper and lower installation members of the beam shape respectively installed on the upper and lower portions of the dust collecting electrode, respectively Is initiated.

Preferably, the dust collection electrodes of each dust collection cell have a square planar shape, and the dust collection electrodes of each dust collection cell are arranged in a lattice structure to form a state of installation of a plurality of dust collection cells, wherein the discharge electrodes are formed of the respective dust collection electrodes. It may be installed to extend through the central position.

Preferably, the upper and lower mounting members include upper and lower coupling holes, respectively, having a diameter equal to or larger than the diameter of the discharge electrode, and the upper and lower coupling holes respectively pass through the upper or lower coupling hole. The bolt portion formed at the top or bottom of the discharge electrode may be screwed to the nut member to be fixed to the upper or lower mounting member, respectively.

Preferably, the atomizing nozzle may be installed to spray the cleaning liquid droplets vertically toward the dust collecting target gas introduced into the dust collecting body through the gas inlet.

According to another aspect of the present invention, as a mechanism for installing a rod-shaped discharge electrode inside the dust collecting electrode having a regular polygonal or circular planar shape installed inside the vertical wet electrostatic precipitator, one disc is the center of the disc A plurality of disc element portions having a radially divided form as a reference, a left and right first slide engaging portion formed along left and right dividing surfaces of the respective disc element portions, and the plurality of disc element portions combined An upper disc including a discharge electrode insertion hole formed at the center of the disc in a state of being formed; And a plurality of cone element portions having one conical body radially divided with respect to the cone center, and a top surface of each of the cone element portions radially formed with respect to the circle center and left of the one disc element portion. A second slide coupling portion configured to receive and slide the right first slide coupling portion together with the first slide coupling portion adjacent to the first slide coupling portion, and the cone body center in the state where the respective cone element portions are combined to form a conical body; Disclosed is a mechanism for installing a discharge electrode of a wet electrostatic precipitator, including; a lower conical body including a discharge electrode insertion passage formed therethrough.

Preferably, the disc element portion has a shape in which one disc is divided into four quarters, and the cone element portion has a shape in which one cone body is divided into four quarters, and the radial division position of the disc element portion and the radial division of the cone element portion. The position can achieve a 45 degree shift with respect to the disc center.

Preferably, the left and right first slide engaging portions are left and right vertical extension portions formed vertically downward along the left or right dividing surface of each disc element portion, respectively, and laterally from an end portion of the left or right vertical extension portion, respectively. A left and right horizontally extending portion, wherein the second slide coupling portion includes: a vertical coupling portion for accommodating the right vertical extension portion of another disc element portion adjacent to the left vertical extension portion of one of the disc element portions; And a horizontal coupling portion for accommodating the left horizontal extension portion of the disc element portion and the right horizontal extension portion of another disc element portion adjacent thereto.

Preferably, the left and right first slide coupling portion and the second slide coupling portion are configured to adjust the slide coupling position in a radial direction with respect to the disc center of the upper disc body.

In the present invention, the water film in the dust collecting electrode is formed by the droplets of the cleaning liquid sprayed through the fog nozzle while the dust collecting structure has a vertical upward flow, and the discharge electrode is accurately positioned at the center position of the dust collecting electrode. This has the advantage that the electrostatic precipitating effect and the cleaning effect can be obtained satisfactorily.

1 is a schematic cross-sectional view of a wet electrostatic precipitator according to an embodiment of the present invention;

Figure 2 is a schematic cross-sectional view for explaining the installation structure of the dust collecting cell of the wet electrostatic precipitator according to an embodiment of the present invention,

3 is a plan view and a front view of the electrode mounting mechanism according to an embodiment of the present invention,

Figure 4 is a perspective view of the discharge electrode installation mechanism according to an embodiment of the present invention,

5 is an exploded perspective view of a device for installing a discharge electrode according to an embodiment of the present invention;

FIG. 6 is a schematic plan view illustrating various arrangement structures of a plurality of dust collecting cells of the wet electrostatic precipitator according to the embodiment of the present invention; FIG.

7 is a schematic plan view for explaining the installation structure of a plurality of dust collecting cells of the wet electrostatic precipitator according to an embodiment of the present invention;

8 is a schematic diagram for explaining a state in which the discharge electrode is installed in the dust collecting cell using the discharge electrode installation mechanism according to an embodiment of the present invention,

9 and 10 are cross-sectional schematic diagrams for explaining a state in which the discharge electrode is installed in the dust collecting cell by using the discharge electrode installation mechanism according to an embodiment of the present invention,

11 is a schematic cross-sectional view for explaining the installation state of the dust collecting cell of the conventional wet electrostatic precipitator.

The present invention can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the embodiments of the present invention are merely examples in all respects and should not be interpreted limitedly.

The terms first, second, etc. are used only for the purpose of distinguishing one component from other components. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is said to be "connected" or "connected" to another component, it may be directly connected or connected to that other component, but there may be other components in between.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In the present application, the terms "comprise", "comprise", "have" and the like are intended to express the presence of a component described in the specification or a combination thereof, and indicate the possibility that another component or feature is present or added. It is not excluded in advance.

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

1 is a cross-sectional schematic diagram of a wet electrostatic precipitator according to an embodiment of the present invention, Figure 2 is a schematic cross-sectional view for explaining the installation structure of the dust collection cell of the wet electrostatic precipitator according to an embodiment of the present invention, Figure 6 7 is a schematic plan view illustrating various arrangement structures of a plurality of dust collecting cells of the wet electrostatic precipitator according to an embodiment of the present invention, and FIG. 7 is an installation structure of the plurality of dust collecting cells of the wet electrostatic precipitator according to an embodiment of the present invention. It is a schematic plane diagram for demonstrating the following.

The wet electrostatic precipitator of the present embodiment includes a vertical dust collecting body 102, a plurality of

dust collecting cells

110 and 112, a fog nozzle 62, upper and

lower cleaning nozzles

22 and 42, and a pollutant discharge port 109. ).

In the vertical dust collecting body 102, a gas inlet 107 through which dust collecting target gas IG flows is formed at a lower portion thereof, and a gas outlet 107 through which dust collecting gas OG flows out.

The plurality of

dust collecting cells

110 and 112 are installed in the vertical direction on the upper side inside the dust collecting body 102.

A fog nozzle 62 is provided between the gas inlet 105 and the plurality of

dust collecting cells

110 and 112. The dust and mist contained in the dust-collecting gas IG are wetted by the fine cleaning liquid droplet sprayed from the atomizing nozzle 62, and the water film is formed in the inner surface of the hollow dust collecting electrode 110. FIG. The fine cleaning liquid droplet sprayed from the atomizing nozzle 62 cools the dust collecting target gas IG and reduces the volume of the gas, thereby increasing the dust collecting efficiency.

For example, the wet electrostatic precipitator of the present embodiment can remove PM (Particulate Matter) 2.5 dust (ultrafine dust) and / or sulfuric acid mist (SO ₃ mist) at a removal rate of 97%. PM 2.5 means a particle size of less than 2.5 μm in diameter. Dust (ultra-fine dust) and / or sulfuric acid mist of PM 2.5 is mainly generated in coal-fired power plants, boilers, ships, steel mills, sulfuric acid processes, cement processes, etc. Can be applied to

The fog nozzle 62 sprays the cleaning liquid droplets continuously or intermittently during the dust collecting operation of the wet electrostatic precipitator. For example, the cleaning liquid is sprayed like a mist using normal temperature water purified in the septic tank, the spray flow rate can be adjusted according to the processing capacity (gas flow rate) of the wet electrostatic precipitator.

Preferably, the atomizing nozzle 62 injects the cleaning liquid droplets vertically (vertically downward) toward the dust-collecting gas IG introduced into the dust collecting body 102 so as to generate only the cleaning liquid droplets.

There is no particular limitation on the number and arrangement of the atomizing nozzles 62, and a plurality of atomizing nozzles 62 may be formed to sufficiently provide the wetting effect of the dust and mist and the water film forming effect.

Reference numerals

6 and 64 denote the supply lines for supplying the cleaning liquid to the atomizing nozzle 62.

The upper and

lower cleaning nozzles

22 and 42 are installed above and below the

dust collecting cells

110 and 112 to spray cleaning liquids toward the

dust collecting cells

110 and 112.

Preferably, the injection angles of the upper and

lower cleaning nozzles

22 and 42 are set to face the dust collection surface (inner surface) of the dust collection electrodes 110 of the

dust collection cells

110 and 112.

Reference numerals

2 and 24 denote the supply lines for supplying the cleaning liquid to the upper cleaning nozzle 22, and reference numerals 4 and 44 denote supply lines for supplying the cleaning liquid to the lower cleaning nozzle 42, respectively.

The upper and

lower cleaning nozzles

22 and 42 spray the cleaning liquid during the idle time for cleaning to remove the contaminants attached to the

dust collecting cells

110 and 112. Since the upper and

lower cleaning nozzles

22 and 42 are installed to face the dust collecting surface (inner surface) of the dust collecting electrode 110 directly, spraying the cleaning liquid during operation may cause an error in the dust collecting operation due to electric discharge. The cleaning liquid is sprayed during the down time.

The pollutant discharge port 109 is installed at the lower side of the vertical body to discharge the pollutant that has been cleaned with the cleaning liquid. Reference numeral 8 denotes a pollutant discharge line.

Each of the

dust collecting cells

110 and 112 has a polygonal planar shape and has a hollow dust collecting electrode 110 extending up and down, and a rod-shaped discharge electrode 112 installed along the longitudinal direction inside the dust collecting electrode 110. ). Examples of planar shapes and arrangement structures of the various dust collecting electrodes 110 are illustrated in FIG. 6. The dust collecting electrode 110 may have a hexagonal polygonal planar shape as shown in (a) of FIG. 6 and a rectangle as shown in (c). Alternatively, the dust collecting electrode 110 may have a circular planar shape as shown in (b) of FIG. .

Each of the

dust collecting cells

110 and 112 has upper and lower mounting members 104 and 104 'having a beam shape in which the upper and lower ends 112a of the discharge electrodes 112 are installed in the upper and lower portions of the dust collecting electrodes 110 in the transverse direction, respectively. Are fixed to each). The fixed installation may be, for example, in the form that the bolts of the upper and lower ends 112a of the discharge electrode 112 are screwed by the nut members 106 and 106 '. To this end, the upper and lower mounting members 104 and 104 'include upper and lower coupling holes 104a having a diameter equal to or larger than that of the discharge electrode 112. In order to install the self-aligning method described below, at least one or both of the upper and lower coupling holes 104a may be formed to have a diameter larger than that of the discharge electrode 112.

Through the above configuration, the bolt portion formed on the top or bottom 112a of the discharge electrode 112 in a state in which the top and bottom 112a of the discharge electrode 112 penetrates the upper or lower coupling hole 104a, respectively. Screwed to the members (106, 106 ') are fixed to the upper or lower mounting members (104, 104'), respectively.

Preferably, the dust collecting electrodes 110 of each of the

dust collecting cells

110 and 112 have a square planar shape, and the dust collecting electrodes 110 of each of the

dust collecting cells

110 and 112 are arranged in a lattice structure to form a plurality of

dust collecting cells

110 and 112. The installation state of is achieved.

For example, the dust collecting electrodes 110 of the

dust collecting cells

110 and 112 of the present embodiment may be formed to have sizes of 150 × 150, 200 × 200, and 300 × 300 (mm). As the size of the dust collecting electrode 110 increases, the discharge efficiency may be lowered. However, the wet electrostatic precipitator applied to a large facility such as a coal power plant has a large capacity, so that the size of the dust collecting electrode 110 increases the dust collecting capacity. In view of these advantages, the dust collecting electrode 110 may be manufactured to an appropriate size.

The discharge electrode 112 is installed to extend through the central position of each of the dust collecting electrode (110).

Although the discharge electrode 112 of the present embodiment is illustrated in a rod shape, protruding electrode portions (not shown) having various shapes may be further formed on the rod surface in order to increase discharge efficiency.

The dust collecting operation of the wet electric dust collector of this embodiment will be described.

First, a gas cooling and saturation state is formed through the cleaning liquid droplets injected from the atomizing nozzle 62 installed inside the dust collecting body 102 before the dust collecting gas IG flows into the

dust collecting cells

110 and 112. The cleaning liquid droplets injected from the atomizing nozzle 62 move upwardly toward the

dust collecting cells

110 and 112 along the rising air flow of the gas to be collected IG.

Next, when the wet dust particles contained in the gas condensed by the cleaning liquid reach the upper

dust collecting cells

110 and 112, the dust particles are charged by the corona generated through the discharge electrode 112. This means that the dust particles have an electrical polarity, and the charged dust particles are directed to the dust collecting electrode 110 and are electrically attracted to and collected by the dust collecting electrode 110.

Next, the dust particles collected in this manner are washed down by a film of water on the electrode surface of the dust collecting electrode 110, thereby collecting and removing the dust particles continuously inside the square dust collecting electrode 110. The water film formed on the electrode surface of the dust collecting electrode 110 is formed by the cleaning liquid droplets sprayed from the atomizing nozzle 62 and raised.

Next, the dust particles washed off by the water film are discharged and removed to the outside through the pollutant outlet 109.

3 is a plan view and a front view of the discharge electrode installation mechanism according to an embodiment of the present invention, Figure 4 is a perspective view of the discharge electrode installation mechanism according to an embodiment of the present invention, Figure 5 is a discharge electrode installation according to an embodiment of the present invention 8 is an exploded perspective view of a mechanism, FIG. 8 is a schematic view for explaining a state in which a discharge electrode is installed in a dust collecting cell using a discharge electrode mounting mechanism according to an embodiment of the present invention, and FIGS. 9 and 10 are according to an embodiment of the present invention. It is a cross-sectional schematic diagram for demonstrating the state which installs a discharge electrode in a dust collection cell using a discharge electrode installation mechanism.

The discharge electrode mounting mechanism of the present embodiment is a mechanism used to install the rod-shaped discharge electrode 112 inside the dust collecting electrode 110 that is installed inside the vertical wet electrostatic precipitator and has a regular polygonal or circular plane shape.

The discharge electrode installation mechanism of the present embodiment is used in the discharge electrode 112 installation process and is removed in the operation process after the discharge electrode 112 is installed. The discharge electrode mounting mechanism of the present embodiment provides an automatic watch function so that the rod-shaped discharge electrode 112 is installed at the center position of the dust collecting electrode 110 having a regular polygonal or circular planar shape.

When the rod-shaped discharge electrode 112 is installed at the center of the inside of the dust collecting electrode 110 having a regular polygonal or circular planar shape, an electric field formed by the discharge electrode 112 and the dust collecting electrode 110 is uniformly formed, thereby causing an electrostatic precipitating effect. There is an advantage to increase.

In addition, when both the upper and lower ends 112a of the rod-shaped discharge electrode 112 are installed in a fixed manner, unlike the hanger method, since the positions of the discharge rods are prevented from shaking or eccentricity due to gas flow, the discharge electrode 112 and the dust collecting electrode are prevented. The electric field formed by 110 is stably formed, which has the advantage of increasing the electrostatic precipitating effect.

The discharge electrode mounting mechanism of this embodiment includes an upper disc body 200a and a lower cone body 200b.

The upper disc body 200a includes a plurality of disc element portions 206 having a shape in which one disc is radially divided with respect to the disc center, and the left and right divided surfaces of each disc element portion 206. Left and right first

slide coupling portions

204, 205, 204 ′ and 205 ′ respectively formed along the discharge electrode insertion hole 202 formed at the center of the disc in a state where the disc element portions 206 are coupled to form a disc. do.

The lower cone shape 200b includes a plurality of cone element portions 218 having a shape in which one cone body is radially divided with respect to the cone center, and a circle center on an upper surface of each of the cone element portions 218. The right first slide engaging portion 204'205 'of another disc element portion 206 formed radially with respect to and adjacent to the left first

slide engaging portion

204 and 205 of one of the disc element portions 206 is formed.

Electrode insertion paths

212 and 219 formed to penetrate along the center of the conical body in a state in which the second

slide coupling parts

214, 215 and 215 'formed to be received together and slide-bonded with the respective conical element parts 218 are combined to form a conical body. It includes.

Preferably, the discharge electrode insertion hole 202 and the discharge

electrode insertion passages

212 and 219 may include at least one portion having a diameter equal to or smaller than the outer diameter of the discharge electrode 112 on the basis of the combined state. It is necessary to meet these conditions in order to adjust the installation position by pressing the outer surface of the discharge electrode 112 uniformly in the overall direction in the automatic care process to be described later.

Preferably, the disc element portion 206 has a shape in which one disc is divided into four quarters, and the cone element portion 218 has a shape in which one cone body is divided into four quarters. The radial dividing position of) and the radial dividing position of the cone element portion 218 form a shift of 45 degrees with respect to the disc center. The number of divisions of the disc element portion 206 may be variously modified in consideration of the outer diameter of the discharge electrode 112.

More specifically, the left and right first

slide engaging portions

204, 205, 204 ′ and 205 ′ are left and right

vertical extensions

204 and 204 formed vertically downward along the left or right dividing surface of each disc element portion 206, respectively. ') And left and right horizontal extensions 205 and 205' extending laterally from the ends of the left or right vertical extensions 204 and 204 ', respectively.

In addition, the second

slide coupling portion

214, 215, 215 'is the right vertical extension 204' of another disc element portion 206 adjacent to the left vertical extension 204 of the one disc element portion 206. A vertical coupling portion 214 for accommodating the same, and a right horizontal extension portion 205 'of another disc element portion 206 adjacent to the left horizontal extension portion 205 of the one disc element portion 206. It comprises a horizontal coupling portion (215, 215 ') for accommodating together.

Through the above structure, the left and right first

slide coupling portions

204, 205, 204 ′, and 205 ′ and the second

slide coupling portions

214, 215, and 215 ′ are oriented in a radial direction with respect to the disc center of the upper disc body 200a. The slide engagement position can be adjusted accordingly.

Through the adjustment of the coupling position can be provided to the self-aligning installation function according to the size of the outer diameter of the discharge electrode (112).

The use process of the discharge electrode installation mechanism of this embodiment is demonstrated.

The discharge electrode 112 is inserted in the dust collecting electrode 110 in the vertical direction along the longitudinal direction and positioned in a substantially central direction.

The upper bolt 112a of the discharge electrode 112 passes through the upper coupling hole 104a of the upper mounting member 104 and temporarily screwes the upper nut member 106.

The lower end 112a of the discharge electrode 112 has a bolt portion penetrating the lower coupling hole 104a 'of the lower mounting member 104' and temporarily screwes the lower nut member 106 '.

Although the temporary coupling state is fixed to the top and bottom of the discharge electrode 112, respectively, the center is not precisely adjusted, may be a slightly eccentric state as shown in Figure 11 or located approximately in the center as shown in FIG. It may be in a state.

In addition, in the coupling state, the upper coupling hole 104a and the lower coupling hole 104a 'are formed to have an inner diameter larger than the outer diameter of the discharge electrode 112, and the lower nut member 106' is not loosely coupled and is slightly loosened. When the combined state is achieved, the discharge electrode 112 may form a temporary coupling state in which a slight movement or direction change is possible in the horizontal direction.

In this temporary coupling state, the discharge electrode mounting mechanism of the present embodiment is provided above the discharge electrode 112.

At the position between the upper installation member 104 and the dust collecting electrode 110, a plurality of disc element portions 206 constituting the upper disc body 200a are collected with respect to the discharge electrode 112 to form a disc. Through this, the discharge electrode 112 is inserted into the discharge electrode insertion hole 202 formed in the center of the disc of the upper disc body 200a.

Another disc element portion (214, 215, 215 ') formed on the upper surface of each of the cone element portions 218 is adjacent to the left first

slide coupling portions

204, 205 of the plurality of disc element portions 206. The first right slide coupling portion 204 ′ 205 ′ of the right side 206 is accommodated together to allow the slide coupling.

When each of the cone element portions 218 is coupled to the upper disc body 200a, the discharge electrode installation mechanism is shown in FIG. 4 with the discharge electrode 112 inserted into the discharge electrode insertion hole 202 and the discharge

electrode insertion passages

212 and 219. The same coupling state is achieved.

In this coupling state, the electrode mounting mechanism is moved to the upper end of the dust collecting electrode 110 by its own weight or an external force, and the outer inclined surface of each conical element portion 218 is inserted into the upper opening of the dust collecting electrode 110 and is in contact with each other. As shown in FIG. 9, the outer surface of the discharge electrode 112 is in pressure contact with the inner surfaces of the discharge electrode insertion hole 202 and the discharge

electrode insertion passages

212 and 219 of the discharge electrode installation mechanism.

Since each cone element portion 218 is coupled to the upper disc body 200a in a slidable form in a radial direction, the position of the lower cone body 200b formed by combining the respective cone element portions 218 is collected. When appropriately adjusted by the operator so as to be located at the center of the electrode 110, the discharge electrode 112 supported in the above-mentioned temporary coupling state is subjected to the uniform pressing force of each cone element portion 218 to the center of the collecting electrode 110. You will be in a self-checking position.

Next, at the position between the lower mounting member 104 ′ and the dust collecting electrode 110, the same operation is performed using another discharge electrode mounting mechanism, and both the upper and lower ends of the discharge electrode 112 are collected at the dust collecting electrode 110. To the self-checking position inside the.

In this state, when the lower nut member 106 'is tightly coupled, both of the upper and lower ends of the discharge electrode 112 have a state in which the upper and lower ends of the discharge electrode 112 are firmly fixed in the self-monitoring position. This state is illustrated in FIGS. 8 and 10.

Thereafter, the upper discharge electrode mounting mechanism is moved upward to the outside of the dust collecting electrode 110, and the slide is dismantled in the opposite process to the above, and the lower discharge electrode mounting mechanism is downwardly moved to the outside of the dust collecting electrode 110 to the opposite process. When the slide is disassembled, the fixed installation of the discharge electrode 112 is completed in a state where it is accurately aligned with the center position of the dust collecting electrode 110.

Thereafter, the discharge electrodes 112 may be installed on the other dust collecting electrodes 110 forming the dust collecting cells, respectively. 1 and 7 illustrate this final installation state.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many different and obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims

A vertical dust collecting body having a gas inlet through which a dust collecting target gas flows in a lower portion, and a gas outlet through which a dust collected gas flows out;

A plurality of dust collecting cells installed in a vertical direction on an upper side of the inside of the dust collecting body;

An atomization nozzle installed between the gas inlet and the plurality of dust collecting cells;

Upper and lower cleaning nozzles installed above and below the dust collecting cell to spray the cleaning solution toward the dust collecting cell; And

And a pollutant outlet installed at a lower side of the vertical body.

Each dust collection cell,

It has a polygonal planar shape and includes a hollow dust collecting electrode extending up and down, and a rod-shaped discharge electrode installed along the longitudinal direction inside the dust collecting electrode,

Wet electrostatic precipitator, characterized in that the top and bottom of the discharge electrode is fixed to the upper and lower mounting members of the beam shape respectively installed on the upper and lower portions of the dust collecting electrode.
The method of claim 1,

The dust collection electrodes of each dust collection cell have a square planar shape,

The dust collecting electrodes of each dust collecting cell are arranged in a lattice structure to form an installation state of a plurality of dust collecting cells,

The discharge electrode is wet electrostatic precipitator, characterized in that installed in the form extending through the center position of each of the dust collection electrode.
The method of claim 2,

The upper and lower installation members each include an upper and lower coupling hole having a diameter equal to or larger than the diameter of the discharge electrode,

The upper and lower ends of the discharge electrode penetrate the upper or lower coupling holes, respectively, the bolt portion formed on the upper or lower end of the discharge electrode is screwed to the nut member, characterized in that fixed to the upper or lower installation member, respectively Wet electrostatic precipitator.
The method of claim 1,

The atomizing nozzle is a wet electrostatic precipitator, characterized in that it is installed to spray the cleaning liquid droplets vertically toward the dust-collecting target gas introduced into the dust collecting body through the gas inlet.
It is installed in the vertical wet electrostatic precipitator and is a mechanism for installing a rod-shaped discharge electrode inside a dust collecting electrode having a regular polygonal or circular planar shape.

A plurality of disc element portions having a shape in which one disc is radially divided with respect to the disc center, a left and right first slide coupling portion formed along left and right divided surfaces of each disc element portion, respectively; An upper disc body including a discharge electrode insertion hole formed at a center of the disc in a state where a disc element is coupled to form a disc; And

A plurality of conical element portions having one conical body radially divided with respect to the conical center, and formed on the upper surface of each conical element portion radially with respect to the center of the circle, A second slide coupling portion formed to receive and slide together a first slide coupling portion on the right side of another disk element portion adjacent to the slide coupling portion, and along the center of the conical body with the respective cone element portions combined to form a conical body. And a lower conical body including a discharge electrode insertion passage formed therethrough.
The method of claim 5,

The disc element portion has a shape in which one disc is divided into quarters,

The conical element portion has a shape in which one conical body is divided into four quarters,

The radial splitting position of the disc element portion and the radial splitting position of the cone element portion form a shift state of 45 degrees with respect to the center of the disc.
The method of claim 5,

The left and right first slide coupling portion,

A left and right vertical extension formed vertically downward along the left or right dividing surface of each disc element portion, respectively; and a left and right horizontal extension extending laterally from an end of the left or right vertical extension, respectively;

The second slide coupling portion,

A vertical coupling portion for accommodating the right vertical extension portion of another disc element portion adjacent to the left vertical extension portion of one of the disc element portions, and the right horizontal extension of another disc element portion adjacent to the left horizontal extension portion of the disc element portion Electrode installation mechanism of the wet electrostatic precipitator, characterized in that it comprises a horizontal coupling for accommodating the unit.
The method of claim 5,

The left and right first slide coupling portion and the second slide coupling portion, for installing the discharge electrode of the wet electrostatic precipitator, characterized in that configured to adjust the slide coupling position in the radial direction with respect to the disc center of the upper disc body. Instrument.