KR20230066913A - Wet electrostatic precipitator of cyclone type - Google Patents

Abstract

The present invention relates to a cyclone type wet electrostatic precipitator which can reliably remove contaminants and maximize the emission of clean air through complex and systematic multiple removal actions including a removal action using a Venturi effect and an inertial collision force effect, a removal action using a cyclone effect, and a removal action using an electrostatic filtering effect to remove particulate dust, etc. from exhaust gas. According to the present invention, the cyclone type wet electrostatic precipitator comprises: a cyclone scrubber housing formed to allow exhaust gas to flow in a swirling flow and remove contaminants in the exhaust gas using centrifugal force; a wet pre-treatment module provided on an exhaust gas inlet side of the cyclone scrubber housing and formed to remove the contaminants by wet pre-treating the exhaust gas containing the contaminants; and an electrostatic filter module provided inside the cyclone scrubber housing and formed to electrostatically remove the contaminants from the exhaust gas. Accordingly, the contaminants in the exhaust gas are reliably removed and very clean air can be emitted.

Description

Cyclone type wet electrostatic precipitator {WET ELECTROSTATIC PRECIPITATOR OF CYCLONE TYPE}

The present invention relates to a cyclone-type wet electrostatic precipitator, and more particularly, to remove particulate dust from exhaust gas by removing the Venturi effect and the inertial collision force effect, by using the cyclone effect, and by using the electrostatic filtering effect. It relates to a cyclone-type wet electrostatic precipitator that can maximize the removal of pollutants and the discharge of clean air through a complex and systematic multiple removal action including removal action.

In general, a dust collector is a device that purifies air containing various contaminants such as fine dust and discharges clean air.

These dust collectors are largely divided into two types, dry and wet, and dry dust collectors can be further classified into electric dust collectors and filter filtration types.

Wet dust collector is a device that contacts the inhaled air with water to precipitate or dissolve contaminants such as dust or gas in the process to purify it. It has advantages such as no filter replacement and low noise. Its use is increasing, but most of the wet dust collectors presented so far have a structure in which water is simply dropped from top to bottom so that dust is adsorbed to the falling water, so the ability to purify dust in the air is as expected. There is a problem that is not high.

On the other hand, among dust collectors, a cyclone dust collector has been proposed that discharges air among foreign substances rotating together with air using centrifugal force to the outside and separates and collects only foreign substances from air.

There are various types of conventional cyclone dust collectors. Recently, as environmental emission standards have been strengthened, it is difficult to meet the strict air pollution emission standards with only cyclones, and pretreatment devices for high-efficiency dust collectors such as filter-type dust collectors (bag filters) It is being used as.

In addition, among the common cyclone dust collectors, for example, there is a multi-cyclone dust collector that forms one cyclone dust collector by connecting a primary cyclone dust collector and a secondary cyclone dust collector, and this multi-cyclone dust collector collects foreign substances again. By doing so, it is possible to exhibit better dust collection performance than a single cyclone dust collector composed of only one.

That is, when large foreign substances and fine foreign substances are introduced into the cyclone dust collector in a mixed state, the dust collection efficiency of the fine foreign substances is extremely low due to the interference of the relatively large foreign substances. Therefore, the multi-cyclone dust collector is developed to improve dust collection performance by first collecting relatively bulky foreign matter by the primary cyclone dust collector and then collecting fine foreign matter again by the secondary cyclone dust collector.

1 is a view schematically showing a conventional multi-cyclone dust collector, and the conventional multi-cyclone dust collector includes a primary cyclone dust collector 10, a secondary cyclone dust collector 20, and each of the cyclones 10 and 20. It consists of a fan 30 that transmits a suction force and a fan motor 40 that transmits a driving force to rotate the fan.

The primary cyclone dust collector 10 includes a cylindrical first cyclone body 11, a first air inlet pipe 12 connected to an upper circumferential surface of the first cyclone body 11 and into which indoor air flows, and air It is configured to include a first dust collection container 13 in which various foreign substances separated from the dust are collected.

Here, the first dust collector 13 is formed on the bottom space of the first cyclone body 11, and is formed to be partitioned from a space where foreign substances are separated by a partition wall 14. At this time, a communication hole 15 is formed in the partition wall 14 so that the separated foreign substances can be introduced into the first dust collection container 13 .

In addition, the secondary cyclone dust collector 20 includes a second cyclone body 21 provided inside the first cyclone body 11 and a second air intake pipe through which air is introduced into the second cyclone body 21. (22), an air discharge pipe (23) through which air flowing in the second cyclone body (21) is discharged, and a second dust collector (23) through which foreign matter separated from the air is collected in the second cyclone body (21). 24). A communication hole 25 communicating with the second dust collector 24 is formed on the lower surface of the second cyclone body 21 . Here, the upper surface of the second cyclone body 21 is integrally formed with the first cyclone body 11, and the second air inlet pipe 22 is connected to the upper space in the first cyclone body 11 and formed to communicate.

In addition, one end of the air discharge pipe 23 passes through the central portion of the upper surface of the second cyclone body 21 and is connected to the inside of the second cyclone body 21 in communication, and the other end thereof is connected to the fan 30 And it is connected in communication with the space provided with the fan motor 40 to receive the suction force generated by the rotation of the fan 30 .

In addition, the second dust collection container 24 is provided on the center side space within the first dust collection container 13 constituting the primary cyclone dust collection unit 10, and communicates with the lower space within the second cyclone body 21. are provided

In such a conventional multi-cyclone dust collector, suction force is generated while the fan 30 rotates by the driving force of the fan motor 40, and the suction force is generated through the air discharge pipe 23 of the secondary cyclone dust collector 20 and the second air inlet. It is transferred to the first air inlet pipe 12 of the primary cyclone dust collector 10 while sequentially passing through the pipe 22 and the like. Air is introduced into the first cyclone body (11).

At this time, among the air and foreign substances flowing inside the first cyclone body 11, the air flows out to the second cyclone body 21 through the second air inlet pipe 22, and the foreign substances are removed by the centrifugal force. While turning and descending along the wall surface of the first cyclone body 11, dust is collected in the first dust collector 13 passing through the communication hole 15 formed in the partition wall 14. In addition, the air introduced into the second cyclone body 21 flows through the second cyclone body 21, and after fine dust is separated again, the fan 30 and the fan pass through the air discharge pipe 23. It is discharged to the space where the motor 40 is provided.

At this time, the fine dust separated from the air in the second cyclone body 21 turns and descends along the inner wall surface of the second cyclone body 21 while passing through the communication hole 25 at the bottom of the second cyclone body 21. ) through which the dust is discharged into the second dust collector 24 and the dust is collected.

However, in the conventional multi-cyclone dust collector described above, since the first air inlet pipe 12 and the second air inlet pipe 22 are formed at substantially the same height, air and foreign substances introduced through the first air inlet pipe 12 are removed. There is a problem in that the cleaning efficiency is lowered because the cleaning efficiency is lowered as it is directly introduced into the secondary cyclone body 21 without rotation, and the cleaning efficiency is further lowered due to the small number of revolutions of air and foreign matter.

On the other hand, a cyclone scrubber in which water is sprayed has been developed to increase the dust collection efficiency of the cyclone dust collector, but the dust collection efficiency is difficult to meet the current strict emission standards, and the sprayed water droplets are scattered outside the dust collector, causing secondary pollution. There is a problem that it is not widely used due to problems such as becoming.

Republic of Korea Utility Model Publication No. 20-1996-0000585 (published on January 17, 1996) Republic of Korea Registered Patent Publication No. 10-1589804 (2016.02.01. Notice) Republic of Korea Registered Patent Publication No. 10-1878711 (Announced on July 16, 2018) Republic of Korea Registered Patent Publication No. 10-0606842 (2006.08.01. Notice)

Therefore, the present invention for solving the above conventional problems is to remove the Venturi effect and the inertial collision force effect, the removal action using the cyclone effect, and the removal action using the electrostatic filtering effect in order to remove particulate dust in the exhaust gas. The purpose is to provide a cyclone-type wet electrostatic precipitator capable of maximizing the removal of contaminants and the discharge of clean air through a complex and systematic multi-removal action including.

The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to one aspect of the present invention for achieving the objects and other features of the present invention, the cyclone scrubber housing configured to remove contaminants in the exhaust gas by centrifugal force by flowing the exhaust gas with a swirling flow; a wet pre-processing module provided on an exhaust gas inlet side of the cyclone scrubber housing and configured to wet-pretreat exhaust gas containing pollutants to remove pollutants; and an electrostatic filter module provided inside the cyclone scrubber housing and electrostatically configured to remove contaminants from the exhaust gas.

In the present invention, the cyclone scrubber housing includes a body body, a swirling flow induction pipe connected to the lower end of the body body in communication and connected to the inner wall of the body body so that exhaust gas flows in a normal direction, and the body body. It includes a washing liquid injection nozzle provided on the side of the swirling flow induction pipe of the part where the part and the swirling flow induction pipe communicate with each other, and the body main body is provided with a straight pipe and a lower end of the straight pipe, and the diameter decreases downward. A lower shaft tube portion having a removal material discharge port through which pollutants and moisture are discharged at the center of the extension end, and provided at the upper end of the straight pipe portion, the diameter slightly extending upward, air is discharged at the center of the extension end It may include an upper shaft tube in which an air outlet is formed.

In the present invention, the wet pretreatment module includes a first group of pipe members disposed at intervals in a direction orthogonal or crossing an inflow direction of exhaust gas; a second group of pipe members provided at a rear side of the first group of pipe members and provided at intervals while the pipe members are positioned between the intervals of the first group of pipe members; and a cleaning liquid spray nozzle provided at a front side of the pipe members of the first group to spray a cleaning liquid toward the front side of the pipe members of the first group.

In the present invention, each of the pipe members of the first group and the pipe members of the second group may be configured to be adjustable in distance.

In the present invention, the wet pretreatment module is configured to mix the pollutants and the cleaning liquid in the pollutant-containing gas using the Venturi effect with respect to the exhaust gas and the sprayed cleaning liquid to remove the pollutants and pass them through. A pollutant removal module; and a washing liquid inflow blocking module provided behind the pollutant removal module and configured to block the pollutant-containing washing liquid flowing from the pollutant removal module by an inertial collision force and allow gas to pass therethrough, wherein the pollutant removal module comprises: , Consisting of a plurality of pollutant removal members arranged with a gap in a direction perpendicular to the flow direction of the pollutant-containing gas, wherein the pollutant removal member has a semicircular or circular pipe shape in cross section or a “V” cross section shape. formed, and the opening may be configured to be disposed toward the washing liquid inflow blocking module.

In the present invention, the washing liquid inflow blocking module is composed of a partition wall member formed in a waveform and having a plurality of gas passage holes, disposed in parallel with the pollutant removal module, and having a valley portion facing the pollutant removal module. The partition wall member is formed in a “V”-shaped waveform or a semicircular ring-shaped waveform, and the gas passage holes are symmetrical to each other on both side walls with respect to the valley of the partition member and have the same size. The valley portion of the barrier rib member may be disposed on the same line as a gap between two adjacent contaminant removal members.

In the present invention, the electrostatic filter module includes a gas rectifying member provided on an upstream side through which the exhaust gas is introduced to homogenize the flow of the exhaust gas; a dust collection member formed in a cylindrical, square, or honeycomb shape, from which water droplets and contaminants contained in passing exhaust gas are adhered and removed; and a discharge member provided inside the dust collecting member and generating electrical static electricity.

In the present invention, the electrostatic filter module includes a charging support having a circular or polygonal cross section in which a cleaning liquid supply path is formed on a central axis in the longitudinal direction and a plurality of cleaning liquid injection holes are formed in a direction perpendicular to the cleaning liquid supply path; It includes a plurality of charging brushes provided on the outer surface of the charging supporter, and at least one of the casing and the charging module may be provided grounded.

According to the cyclone-type wet electrostatic precipitator according to the present invention provides the following effects.

First, the present invention can remove particulate dust by using the Venturi effect and the inertial collision force effect, the removal action using the cyclone effect, and the electrostatic filtering effect to remove particulate dust from exhaust gas, thereby reducing exhaust gas pollutants. It has the effect of clear removal of air and discharge of very clean air.

Second, the present invention has the effect of maximizing the fine dust removal efficiency through the arrangement of the removal module optimized in the flow of the exhaust gas in removing particulate dust in the exhaust gas through multiple removal actions.

Third, the present invention uses a large amount of washing water, which is the same principle as the wet gas absorption device, and uses the Venturi effect and the inertial impact force effect, so that sulfurous acid gas, acid gas such as hydrogen chloride and other gaseous contaminants can be removed, so gaseous substances and Particulate dust can be reduced at the same time, and economical effects can be obtained.

The effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a view schematically showing a conventional multi-cyclone dust collector.
2 is a front side view schematically showing the configuration of a cyclone-type wet electric precipitator according to the present invention.
3 is a planar side view schematically showing the configuration of a cyclone-type wet electric precipitator according to the present invention.
4 is a planar side view showing a cyclone scrubber included in a cyclone-type wet electrostatic precipitator according to the present invention.
5 is a front side view showing a lower part of the cyclone scrubber included in the cyclone-type wet electric precipitator according to the present invention.
6 is a plan side view showing an embodiment of a wet pretreatment module included in a cyclone-type wet electrostatic precipitator according to the present invention.
7 is a perspective view showing another embodiment of a wet pretreatment module included in a cyclone-type wet electrostatic precipitator according to the present invention.
8 is a view for explaining the operation of the wet pretreatment module included in the cyclone-type wet electrostatic precipitator according to the present invention.
9 is a perspective view showing an embodiment of an electrostatic filter module included in a cyclone-type wet electrostatic precipitator according to the present invention.

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention may make various changes and may have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In addition, terms such as "...unit", "...unit", and "...module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

The cyclone-type wet electrostatic precipitator according to the present invention is equipped with a multi-venturi (Multi Venturi) using the venturi effect and inertial impact force at the front end of the cyclone scrubber and sprays water to mix water and airborne contaminants, and the cyclone Secondary water injection inside the scrubber removes additional contaminants and large water and contaminant particles are primarily removed by centrifugal force, and the gas passes through the electrostatic filter at the top again to remove fine contaminants and water droplets, creating a clean environment. It is configured so that only gas is discharged to the outside of the dust collector.

Hereinafter, a cyclone-type wet electrostatic precipitator according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front side view schematically showing the configuration of a cyclone-type wet electric precipitator according to the present invention, Figure 3 is a planar side view schematically showing the configuration of the cyclone-type wet electric precipitator according to the present invention, Figure 4 is a planar side view showing a cyclone scrubber included in the cyclone-type wet electrostatic precipitator according to the present invention, and FIG. 5 is a front side view showing a lower part of the cyclone scrubber included in the cyclone-type wet electrostatic precipitator according to the present invention . 6 is a planar side view showing an embodiment of a wet pretreatment module included in a cyclone-type wet electrostatic precipitator according to the present invention, and FIG. 7 is a view of a wet pretreatment module included in a cyclone-type wet electrostatic precipitator according to the present invention. It is a perspective view showing another embodiment, and FIG. 8 is a view for explaining the operation of the wet pretreatment module included in the cyclone-type wet electrostatic precipitator according to the present invention. 9 is a perspective view showing an embodiment of an electrostatic filter module included in a cyclone-type wet electrostatic precipitator according to the present invention.

Cyclone-type wet electrostatic precipitator according to the present invention, as shown in Figs. 2 to 9, largely a cyclone scrubber housing 100; wet pretreatment module 200; and an electrostatic filter module 300.

Specifically, in the cyclonic wet electric precipitator according to the present invention, as shown in FIGS. 2 to 9, the exhaust gas (fluid) introduced from the outside flows with a swirling flow and centrifugal force removes contaminants (particulate dust) in the exhaust gas. a cyclone scrubber housing 100 configured to separate and discharge the exhaust gas filtered to the top and to discharge the exhaust gas filtered to the top; a wet pre-processing module 200 provided on an exhaust gas inlet side of the cyclone scrubber housing 100 and configured to pre-treat the exhaust gas containing contaminants in a wet manner to remove contaminants in the exhaust gas; And an electrostatic filter module provided inside the cyclone scrubber housing 100 and configured to remove moisture and contaminants (fine moisture and contaminants) contained in exhaust gas flowing inside the cyclone scrubber housing 100 ( 300);

In the cyclone scrubber housing 100, exhaust gas (fluid) introduced from the outside flows with a swirling flow, and contaminants (foreign substances such as particulate dust) in the exhaust gas are separated by centrifugal force and discharged to the bottom, and filtered exhaust to the top. It is a component configured to discharge gas.

Specifically, the cyclone scrubber housing 100 is connected in communication with the body body portion 110 and the lower end of the body body portion 110 in a normal direction to the inner wall of the body body portion 110 of the exhaust gas flowing from the outside. It includes a swirling flow induction pipe 120 connected to flow into.

The body body portion 110 is provided with a straight pipe portion 111 having an inner diameter of a predetermined size, and is provided at the lower end of the straight pipe portion 111, and extends in a decreasing diameter as it goes downward, contaminants and contaminants at the center of the extension end. It is provided at the upper end of the lower shaft pipe part 113 and the straight pipe part 111 where the removal material discharge port 112 through which moisture (water) is discharged is formed, and the diameter slightly extends upward, and is located at the center of the extension end. It includes an upper conduit 115 in which an air outlet 114 through which air is discharged is formed.

Here, the swirling flow inducing pipe part 120 communicates with the lower side of the straight pipe part 111 of the body body part 110, and the communication between the swirling flow inducing pipe part 120 and the straight pipe part 111 is indicated by the dotted line in FIG. As shown, it is formed to communicate over one half of the straight pipe 111.

Specifically, the swirling flow inducing pipe part 120 has a structure like a snail's house, is connected to one side of the lower part of the straight pipe part 111 of the cyclone scrubber housing 100 and protrudes to the outside, and has a structure that protrudes to the outside, its upper and lower surfaces and right side is blocked, and only the surface in contact with the straight pipe 111 is open, so that a mixture of water and pollutants having a relatively high specific gravity among the exhaust gas passing through the wet pretreatment module 200 to be described in detail below is pushed to the right wall surface by centrifugal force. After flowing into the scrubber housing 100, it falls downward by gravity and is discharged to the outside of the cyclone scrubber housing 100 through the removal material outlet 112 of the lower tube part 113.

The swirling flow induction pipe 120 prevents unnecessary water and pollutants from scattering inside the cyclone scrubber housing 100 by sufficiently imparting centrifugal force to water and contaminants in a limited space, and also rapidly forms the bent portion of the centrifugal force. It is possible to increase the separation efficiency of water and gas by maximizing the production.

In addition, the swirl flow inducing pipe part 120 on the rear side of the wet pretreatment module 200 in the swirling flow inducing pipe part 120 further includes a spray nozzle (first spray nozzle) 130 provided to spray a cleaning liquid, , Water is additionally sprayed through the spray nozzle 130 (primarily sprayed from the wet pretreatment module) so that water and pollutants are mixed in the space where the centrifugal force acts to the maximum, thereby further increasing the pollutant removal efficiency. can

Next, the wet pretreatment module 200 is provided on the exhaust gas inlet side of the cyclone scrubber housing 100, that is, on the inlet side of the swirling flow inducing pipe part 120, and pretreats the exhaust gas containing pollutants in a wet way It is configured to remove contaminants in the exhaust gas.

Specifically, the wet pretreatment module 200 is an embodiment, as shown in FIG. 6, the first group of pipe members (210 ), and provided on the rear side (downstream side relative to the exhaust gas flow direction) of the first group of pipe members 210, while the pipe members are positioned between the gaps between the first group of pipe members 210 A second group of pipe members 220 provided at regular intervals, and provided on the front side of the first group of pipe members 210 to spray the cleaning liquid toward the front of the first group of pipe members 210 It includes a washing liquid injection nozzle (spray nozzle) 230 provided.

Here, the pipe members 210 of the first group and the pipe members 220 of the second group may be configured to be positioned in a horizontal direction (left and right directions). For example, guide rails or guide protrusions are formed at the lower ends of each of the pipe members 210 and 220, and guide protrusions or guide rails are formed in the transverse direction of the bottom of the swirling flow induction pipe 120 so that each pipe The left and right positions of the members 210 and 220 can be adjusted.

In the wet pretreatment module 200 of one embodiment, a plurality of pipe members 210 and 220 are arranged at regular intervals so that each Venturi portion is formed by a narrow gap between the pipe members. The water injected from the cleaning liquid injection nozzle (second spray nozzle) 230 at the front end of the venturi unit is rapidly mixed with the exhaust gas, so that pollutants in the exhaust gas are absorbed or adsorbed to the water to remove the pollutants.

In addition, each of the pipe members 210 and 220 is configured in a position control method rather than a fixed type, thereby minimizing an increase in pressure loss due to clogging of the venturi unit and damage due to abrasion, and is configured in multiple stages in the flow direction of the exhaust gas, thereby removing pollutants. In addition to increasing the removal efficiency, since non-fixed pipe members are used, in case of a problem, only the pipe members can be easily replaced, so maintenance is very simple and excellent.

Meanwhile, the wet pretreatment module 200 may be configured as shown in FIGS. 7 and 8 as another embodiment.

Specifically, referring to FIGS. 7 and 8, the wet pretreatment module 200 of another embodiment includes a casing 240 in which pollutant-containing exhaust gas is formed to flow, and a front portion of the casing 240 Contaminants provided on the upstream side (based on the flow direction of the pollutant-containing gas) and configured to mix the pollutants in the exhaust gas and the sprayed cleaning liquid by using the venturi effect, and to pass while the pollutants are removed. The removal module 250 and the contaminants provided on the rear side of the pollutant removal module 250 (on the downstream side relative to the flow direction of the pollutant-containing gas) from which pollutants are removed by the pollutant removal module 250 Cleaning liquid inflow blocking module configured to remove the cleaning liquid holding the material by inertial collision force to block the inflow of the cleaning liquid to the contaminant removal facility and to ensure that the gas flows homogeneously so that the dust collection efficiency can be maintained high in the downstream component ( 260).

The casing 240 includes a casing body portion 241 open on the front and rear surfaces to provide a flow passage for pollutant-containing gas, and a front coupling flange portion 242 extending outward from the front and rear ends of the casing body portion 241. ) and a rear coupling flange portion 243.

As illustrated in the drawing, the casing body portion 241 is formed as a rectangular enclosure, but is not limited thereto.

The front and rear coupling flange portions 242 and 24 are formed by extending a predetermined length outward from four sides of the casing body portion 241 . Of course, the front and rear coupling flange portions 242 and 243 may be formed in an appropriate shape suitable for the object to be coupled (ie, the inner space of the scrubber housing 100), for example, in an annular ring shape or a pulley shape.

In the present invention, when the contaminant removal module 250 and the washing fluid inflow blocking module 260 are directly installed in the swirling flow induction pipe 120, the casing 240 may be omitted.

Continuing, the pollutant removal module 250 is provided in the front part (upstream side based on the flow direction of the pollutant-containing gas) in the casing 240, and has a Venturi effect on the inflowing exhaust gas and the sprayed cleaning liquid. (venturi effect) is used to mix the contaminants in the contaminant-containing gas and the cleaning liquid, and is configured to pass while the contaminants are removed.

Specifically, in the pollutant removal module 250, a pollutant removal member 251 formed in a semicircular or circular pipe shape in cross section (cross section) maintains a predetermined gap in a direction perpendicular to the flow direction of the pollutant-containing gas. are arranged and composed.

In addition, in the pollutant removal module 250, in another embodiment, pollutant removal members formed in a “V” shape in cross section (cross section) are arranged with a predetermined gap in a direction perpendicular to the flow direction of the pollutant-containing gas. It consists of

Here, the contaminant removal module 250 is disposed such that the open portion faces the washing liquid inflow blocking module 260 . In other words, the pollutant removal module 250 is arranged to form a flow path through which a gas passage formed by neighboring pollutant removal members 251 is reduced from an upstream side to a downstream side.

The washing fluid inflow blocking module 260 is provided at a rear side of the pollutant removal module 250 (on a downstream side based on the flow direction of the pollutant-containing gas) to remove pollutants from the pollutant removal module 250. The washing liquid containing the pollutants is removed by an inertial collision force to block the inflow of the washing liquid to the pollutant removal facility and to allow the gas to flow homogeneously so that the dust collection efficiency can be maintained high in the downstream component.

Specifically, the washing liquid inflow blocking module 260 is formed in a waveform and is composed of a barrier member 262 in which a plurality of gas passage holes 261 are formed, disposed in parallel with the contaminant removal module 250, and has an opening is disposed to face the contaminant removal module 250 .

The partition wall member 262 may be formed in a "V" shape in cross section (cross section) as shown in the drawing, and may be formed in a "V" shape with a round valley or a semicircular ring shape.

In addition, the gas passage holes 261 formed in the partition wall member 262 are symmetrical to each other on both side walls of the partition wall member 262 and are formed in the same size, that is, both side walls with respect to the valley of the partition wall member 262. It is preferable that the gas passage holes 261 are symmetrical and formed in the same size, which makes the air flow of the gas passing through the gas passage holes 261 of the partition wall member 262 homogeneous.

Here, it is preferable that the valley of the barrier rib member 262 is disposed on the same line as the gap between the two neighboring pollutant removal members 251 of the pollutant removal module 250. .

In other words, the contaminant-containing washing liquid passing through the gap formed by the two neighboring pollutant removing members 251 of the pollutant removing module 250 passes through the barrier rib member 262 of the washing liquid inflow blocking module 260. It is made so as to collide (hit) with the bone of the

Describing the effect of the wet pretreatment module 200 of another embodiment configured as above, the pollutant-containing exhaust gas flowing into the casing 240 is removed from two neighboring pollutant removal members of the pollutant removal module 250 ( 251), the flow velocity increases to form a strong turbulent flow, and accordingly, the mixing of the pollutant-containing gas and the cleaning liquid (the cleaning liquid sprayed through the cleaning liquid spraying device provided in front of the pollutant removal module 250) is rapidly mixed. This increases the pollutant removal efficiency. After the pollutants are primarily removed in the pollutant removal module 250, the cleaning liquid of the pollutant-containing gas passing through the pollutant removal module 250 flows into the barrier member 262 of the cleaning liquid inflow blocking module 260. Since the cleaning liquid containing contaminants has a very large specific gravity and particle size compared to gas, when the flow direction rapidly changes, it hits the valley (pocket) of the diaphragm member 262 by inertial force, is blocked, and flows down to remove contaminants. The gas from which the cleaning liquid and the cleaning liquid are removed escapes through the gas passage holes 261 on both sides of the partition wall member 262 .

At this time, since the gas passage hole 261 is formed symmetrically with the same size on both side walls of the partition member 262, the passing gas is evenly distributed (gas rectification) to increase the operating efficiency of the pollutant removal facility, As a result, the pollutant removal efficiency is improved.

Next, the electrostatic filter module 300 is provided inside the cyclone scrubber housing 100 and contains moisture and contaminants (fine moisture and contaminants) contained in the exhaust gas flowing inside the cyclone scrubber housing 100. ) is a component configured to remove.

Specifically, the electrostatic filter module 300 includes a gas rectifying member 310 provided at a front end, which is an upstream side into which exhaust gas flows, to homogenize the flow of exhaust gas, and a cylindrical, rectangular, or honeycomb shape. It is formed of a dust collecting member 320 to which water droplets and contaminants contained in the passing exhaust gas are attached and removed, and a discharge member 330 provided inside the dust collecting member 320 and generating electrical static electricity. do. Reference numeral 340 is an insulator connected to the discharge member 330 to electrically insulate the electrostatic filter module 300 .

Describing the effect of the electrostatic filter module 300 configured as described above, the exhaust gas from which water and contaminants are separated by the wet pretreatment module 200 in the swirling flow induction pipe 120 is the gas rectifying member ( 310) to evenly flow in the body body portion 110 of the cyclone scrubber housing 100, and electrostatic ions generated by corona discharge by the flow of high voltage electricity in the discharge member 330 are attached to water droplets or contaminants in the gas By grounding, it moves to the side of the dust collecting member 320 having a relatively opposite charge and is attached to and removed from the dust collecting member 320, thereby removing fine water droplets and ultrafine dust that have not yet been removed from the upstream side of the exhaust gas flow.

Next, another embodiment of the electrostatic filter module 300 will be described with reference to FIG. 9 .

As shown in FIG. 9 , the electrostatic filter module 300 of another embodiment includes a casing 350 formed to allow gas flow, and a plurality of casings 350 provided to allow gas flow, and a cleaning liquid supply device. and a charging module 360 configured to spray cleaning liquid supplied from a unit (not shown), and at least one of the casing 350 and/or the charging module 360 is configured to be grounded.

The charging module 360 has a circular or polygonal cross-section in which a cleaning liquid supply path 361a is formed along a longitudinal central axis, and a plurality of cleaning liquid injection holes 361b are formed in a direction perpendicular to the cleaning liquid supply path 361a. and a plurality of charging brushes 362 provided on an outer surface of the charging supporter 361.

The charging support 361 and the charging brush 362 may be made of a metal material having electrical conductivity, but are preferably made of a resin material such as polypropylene instead of metal or an expensive conductive material.

The charging brushes 362 are positioned so that the cleaning liquid (cleaning liquid) sprayed from the cleaning liquid nozzle 361b formed in the charging supporter 361 is sprayed between the respective brushes.

The electrostatic filter module 300 of another embodiment configured as described above ionizes pollutants and fine water particles in the exhaust gas by installing a high voltage discharge unit at the front of the electrostatic filter module 300, and negatively ionized pollutants and fine water particles are ionized. Moisture adheres to the portion of the charging brush 362 that is relatively positively polarized by grounding and is removed.

In other words, large particles of washing water that can cause sparks and arcs during operation are removed in the wet pretreatment module 200, and ultra-fine particles in the form of fine mist and water particles are removed from the electrostatic filter module 300. ), the charging brush 362 is always wet with moisture so that the contaminants flow down continuously to remove them. At this time, since the brush 362 is always wet with moisture during operation and is charged by the moisture, the material of the brush does not necessarily need to be a metal that transmits electricity, so the range of material selection can be widened.

The cleaning liquid is introduced through the cleaning liquid supply path 361a of the charging support 361, and the inflowed cleaning liquid is sprayed through the spray hole 361b to remove contaminants attached to the brush and perform cleaning, especially hair. The flexible brush features excellent cleaning power.

In the electrostatic filter module 200 of another embodiment, the hair-like brush 362 is individually dust-collecting and electrified to increase the dust-collecting area per unit area, thereby increasing the dust-collecting efficiency. Since the size of the dust collector can be reduced, it is possible to obtain a space saving and a reduction in installation investment cost for the installation of the dust collector.

Next, the operation of the cyclone-type wet electrostatic precipitator according to the present invention will be described.

Pollutant-containing exhaust gas flows into the side of the body body 110 through the swirling flow induction pipe 120, and water is sprayed through the spray nozzle 230 at the front end of the swirling flow induction pipe 120, wet In the primary and secondary venturi units of the preprocessing module 200, exhaust gas and water flow at a high speed and are rapidly mixed, and the exhaust gas containing pollutants is pretreated in a wet manner by the Venturi effect and inertial force to remove pollutants in the exhaust gas. Remove. In addition, water is sprayed secondarily from the exhaust gas inlet side of the body body portion 110 (through the first splay nozzle 130) to increase the mixing rate of water and pollutants in the confined space of the swirling flow inducing pipe portion 120, while Contaminants and gases mixed with water are separated by centrifugal force to maximize the removal rate of pollutants while minimizing scattering of water droplets inside the cyclone scrubber housing 100.

In addition, the exhaust gas passing through the swirling flow induction pipe 120 flows in an upward flow inside the cyclone scrubber housing 100, and at this time, the air filtered by the electrostatic filter module 300 flows upward to the air Discharged through the outlet 114, water and contaminants separated from the exhaust gas are discharged through the removal material outlet 112 at the bottom.

Here, the exhaust gas flowing upward is made to flow evenly by the rectifying member 310, thereby minimizing the occurrence of disturbances in operation due to drifting of the gas in the electrostatic filter module 300.

In addition, the exhaust gas passing through the rectifying member 310 passes through the dust collecting member 320 and the discharging member 330 and removes fine water droplets that have not yet been removed in the wet pretreatment module 200 (the water droplets are scattered outside the device). Secondary contamination by dust), as well as fine contaminants that are difficult to remove from the front end can be additionally removed to increase the overall dust collection efficiency.

As described above, the present invention has a strong mixing effect such as centrifugal force action through the venturi part of the pretreatment module and the swirling flow induction pipe, compared to the conventional dry cyclone or cyclone scrubber that can mainly remove particulate dust. Pollution in the exhaust gas Since the substance is transferred to water by absorption or adsorption, it is possible to remove gaseous pollutants (sulfur oxide, chlorine oxide, etc.) in addition to particulate dust. In addition, it can remove even ultra-fine particles, so it can respond to the fine dust problem that is becoming an international problem.

According to the cyclone-type wet electrostatic precipitator according to the present invention as described above, in order to remove particulate dust from exhaust gas, the venturi effect and the inertial collision force effect are removed, the removal action using the cyclone effect, and the electrostatic filtering effect are It is possible to remove particulate dust by using it, so it is possible to ensure the reliable removal of exhaust gas pollutants and to discharge very clean air. There is an advantage in maximizing the fine dust removal efficiency through the arrangement of the module.

In addition, according to the present invention, since a large amount of washing water, which is the same principle as the wet gas absorption device, is used, the venturi effect, the inertial impact force effect, etc. are used, it is possible to remove acid gases such as sulfurous acid gas and hydrogen chloride and other gaseous contaminants. It can reduce material and particulate dust at the same time, so you can get an economical effect.

The embodiments described in this specification and the accompanying drawings merely illustrate some of the technical ideas included in the present invention by way of example. Therefore, since the embodiments disclosed in this specification are not intended to limit the technical idea of the present invention but to explain it, it is obvious that the scope of the technical idea of the present invention is not limited by these embodiments. All modified examples and specific examples that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

100: cyclone scrubber housing
110: body body part
111: intuition part
112: removal material outlet
113: lower shaft tube
114: air outlet
115: upper shaft tube
120: vortex flow induction pipe
130: spray nozzle (first spray nozzle)
200: wet pretreatment module
210: pipe member of the first group
220: pipe member of the second group
230: cleaning liquid spray nozzle (second spray nozzle)
240: casing
241: casing body part
242: shear coupling flange
243: rear end coupling flange
250: contaminant removal module
251: contaminant removal member
260: washing liquid inflow blocking module
261: gas passage hole
262: bulkhead member
300: electrostatic filter module
310: gas rectification member
320: dust collection member
330: discharge member
340: insulator
350: casing
360: charging module
361: charging support
361a: cleaning solution supply path
361b: washing liquid nozzle
362: electrification brush

Claims (8)

a cyclone scrubber housing configured such that the exhaust gas flows with a swirling flow to remove contaminants in the exhaust gas by centrifugal force;
a wet pre-processing module provided on an exhaust gas inlet side of the cyclone scrubber housing and configured to wet-pretreat exhaust gas containing pollutants to remove pollutants; and
An electrostatic filter module provided inside the cyclone scrubber housing and configured to electrostatically remove pollutants from exhaust gas; characterized in that it comprises a
Cyclone type wet electrostatic precipitator.
According to claim 1,
The cyclone scrubber housing includes a body body, a swirling flow induction pipe connected to the lower end of the body body in communication and connected to the inner wall of the body so that exhaust gas flows in a normal direction, and a swirling flow induction with the body body. Including a cleaning liquid spray nozzle provided on the side of the swirling flow inducing pipe of the part where the pipe is in communication with each other,
The body body part has a straight pipe part, a lower shaft pipe part provided at the lower end of the straight pipe part, extending in a decreasing diameter as it goes downward, and having a removal material outlet through which contaminants and moisture are discharged at the center of the extension end, and the straight pipe It is provided at the upper end of the unit, the diameter slightly extends upward, and an upper shaft tube portion having an air outlet through which air is discharged is formed at the center of the extension end.
Cyclone type wet electrostatic precipitator.
According to claim 1,
The wet pretreatment module,
a first group of pipe members disposed at intervals in a direction orthogonal to or crossing an inflow direction of exhaust gas;
a second group of pipe members provided at a rear side of the first group of pipe members and provided at intervals while the pipe members are positioned between the intervals of the first group of pipe members; and
characterized in that it comprises a; cleaning liquid spray nozzle provided on the front side of the pipe member of the first group and provided to spray the cleaning liquid toward the front side of the pipe member of the first group
Cyclone type wet electrostatic precipitator.
According to claim 3,
Characterized in that each of the pipe members of the first group and the pipe members of the second group is configured to be able to adjust the distance
Cyclone type wet electrostatic precipitator.
According to claim 1,
The wet pretreatment module is a pollutant removal module configured to mix the pollutants in the pollutant-containing gas with the cleaning liquid using a Venturi effect with respect to the exhaust gas and the sprayed cleaning liquid to remove the pollutants and pass them through, and the pollutant removal A washing liquid inflow blocking module provided at the rear of the module and configured to block the pollutant-containing washing liquid flowing from the pollutant removal module by an inertial collision force and allow gas to pass through;
The pollutant removal module is composed of a plurality of pollutant removal members arranged with a gap in a direction orthogonal to the flow direction of the pollutant-containing gas,
The contaminant removal member is formed in a semicircular or circular pipe shape in cross section or in a “V” shape in cross section, and the opening is disposed toward the washing liquid inflow blocking module. Characterized in that
Cyclone type wet electrostatic precipitator.
According to claim 5,
The washing liquid inflow blocking module is composed of a partition wall member formed in a wave form and having a plurality of gas passage holes, disposed in parallel with the pollutant removal module, and having a valley portion facing the pollutant removal module,
The barrier rib member is formed in a “V”-shaped waveform or a semicircular ring-shaped waveform,
The gas passage holes are symmetrical to each other and formed in the same size on both side walls based on the valley of the partition member,
Characterized in that the trough of the barrier rib member is arranged on the same line as the gap between the two neighboring contaminant removal members.
Cyclone type wet electrostatic precipitator.
According to claim 1,
The electrostatic filter module,
a gas rectifying member provided on an upstream side through which the exhaust gas is introduced to homogenize the flow of the exhaust gas;
a dust collection member formed in a cylindrical, square, or honeycomb shape, from which water droplets and contaminants contained in passing exhaust gas are adhered and removed; and
Characterized in that it comprises a; discharge member provided on the inside of the dust collecting member and generating electrical static electricity
Cyclone type wet electrostatic precipitator.
According to claim 1,
The electrostatic filter module includes a charging support having a circular or polygonal cross-section in which a cleaning solution supply path is formed on a longitudinal central axis and a plurality of cleaning solution injection holes are formed in a direction orthogonal to the cleaning solution supply path, and an outer surface of the charging support. Including a plurality of charging brushes provided,
Characterized in that at least one of the casing and the charging module is provided grounded
Cyclone type wet electrostatic precipitator.

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