KR20220036523A - Swirling flow type uniflow Electrosprayed dust collector - Google Patents

Abstract

Provided by the present invention is a swirling flow type uniflow electrostatic spraying dust collector, comprising: a vertical tube-shaped body part (200) including an upper body part (200), an extending body part (220), a middle body part (230), and a lower body part (240), wherein an inlet port (250) is provided in an upper side surface of the upper body part (200) to allow exhaust gas to flow therein, and an upper end of the upper body part (200) is sealed; an electrostatic spray part (400) disposed inside the body part (200) and including a plurality of nozzles; and a gas discharge part (300) including a vertical discharge part (310), a curved discharge part (320) and a horizontal discharge part (330), disposed to penetrate a side wall from a predetermined position of the body part (200), and configured to discharge purified gas to the outside. The electrostatic spray part (400) includes an electrostatic spray pipe (430) having a plurality of electrostatic spray nozzles (450) on the predetermined outer diameter, wherein the inner diameter of the electrostatic spray part (400) has a narrow upper portion and a wide lower portion. A '+' lead wire is connected to the body part (200), and a '-' lead wire is connected to the electrostatic spray pipe (430). Accordingly, it is possible to efficiently remove ultrafine dust and minimize the generation of secondary pollutants. Therefore, it is possible to maximize economic benefits.

Description

Swirling flow type uniflow Electrosprayed dust collector}

The present invention relates to an electrostatic spray dust collector, and more specifically, it uses a swirl flow type to induce particles in a tangential direction to primarily remove the particles using the inertial force of the swirl flow, and also to expand the dust collection area in two stages to make it ultra-fine. It relates to a swirl flow type uniflow electrostatic spray dust collector with enhanced discharge removal efficiency by reducing the speed of tenants to set the optimum electrostatic spray dust collection speed to collect ultra-fine particles and then utilizing the inertial force of the collected ultra-fine particles and fluid.

Exhaust gases emitted from combustion facilities such as thermal power plants, waste incinerators, heating furnaces, and kilns contain air pollutants, among which ultrafine dust enters the human body and causes respiratory diseases and inhibits plant growth. have a detrimental effect on the environment, such as

In order to manage fine dust (PM2.5) with a diameter smaller than 2.5 μm, which is known to be particularly harmful among these air pollutants, the U.S. Environmental Protection Agency (EPA) and the European Union (EU) have was revised to strengthen environmental regulations on these substances.

On the other hand, gravity dust collection, inertial force dust collection, filter dust collection, cleaning dust collection, and electric dust collection techniques are generally known dust collection techniques. Gravity dust collection technology uses the gravity of particles to naturally precipitate particles as air moves. , it is effective to remove relatively large particles, but hardly removes fine particles.

On the other hand, the filtration technology for removing particles by passing gas through a filter having fine pores and the electric dust collection technology for removing particles by supplying electricity to the dust are known to have relatively high dust collection efficiency. However, in the case of filtration technology, the amount of exhaust gas is rapidly reduced because the particles block fine pores, and frequent replacement of the filter is directly related to an increase in the cost of exhaust gas treatment.

On the other hand, in the prior patent of the present applicant for particle removal, a particle separation device using a swirl flow under atmospheric pressure and high pressure is disclosed. In the prior literature, the lower end forms an exhaust gas vortex guide pipe of the upper and lower gorges, and an inlet is formed on the upper side of the particle separation device to be deflected outward from the axial center, and the mixed gas follows the inner wall surface by centrifugal force due to the vortex flow. a dust collector, which is a vertical pipe to change the flow path inner diameter by forming an inner diameter reduction and enlargement portion protruding in an annular shape on the inner circumferential surface of the inner circumferential surface while turning, and changing the flow passage inner diameter; an exhaust gas guide pipe for guiding the exhaust gas flowing into the exhaust gas variable guide pipe protruding in the longitudinal direction from the top surface of the dust collector to turn; an exhaust gas discharge pipe disposed at the center of the dust collector and locating the outlet in the area of the reduced and enlarged inner diameter to discharge the gas from which the solid particles are separated to the outside; The pressure loss of the mixed gas flowing into the dust collector is minimized, and the gas turning downward along the inner circumferential surface of the dust collector is moved by changing the direction to the inside upward at the inner diameter reduction and enlargement part, and hits the end of the exhaust gas swirl guide pipe and moves downward. It has the advantage of being able to efficiently separate solid particles by centrifugal force by triple vortex flow, such as discharging through a variable gas discharge pipe.

However, in the prior patent, the separation of particles depends only on the swirling flow and centrifugal force, so the ultra-fine particle collection efficiency of the exhaust gas is increased to the particle flow rate and the particle flow rate is increased to the dust collection limit speed, so that the ultra-fine particle collection efficiency may be reduced, especially very fine particles Until then, there is a problem that it is difficult to remove.

Republic of Korea Patent Publication No. 1267878 Republic of Korea Patent Publication No. 1334927

The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a dust collector that can effectively remove even ultra-fine particles contained in exhaust gas and has less secondary pollution.

In order to solve the above problems, the upper body part 200, the extended body part 220, the middle body part 230 and the lower body part 240 are composed of, and the upper side of the upper body part 200 is provided with an inlet 250 so that exhaust gas is introduced, and the upper end of the upper body 200 is a sealed vertical tube body 200; an electrostatic spraying unit 400 having a plurality of nozzles disposed inside the body 200; and a vertical discharge unit 310, a curved discharge unit 320 and a horizontal discharge unit 330, and a vertical discharge unit 310, a curved discharge unit 320, and a horizontal discharge unit 330, and the a gas discharge unit 300 which is disposed while penetrating the sidewall at a predetermined position of the body 200 to discharge purified gas to the outside; and a cleaning unit 700 having a plurality of spray nozzles disposed inside the body portion 200 , wherein the electrostatic spraying unit 400 has a constant outer diameter in which the plurality of electrostatic spraying nozzles 450 are provided. and includes an electrostatic spraying pipe 430 having a changeable inner diameter, a '+' lead wire is connected to the body part 200, and a '-' lead wire is connected to the electrostatic spraying pipe 430. Uniflow provides electrostatic spray dust collectors.

The electrostatic spraying unit 400 includes an upper support pipe 410 disposed in the inner space of the upper body 200; an electrostatic spray pipe 430 disposed to be spaced apart between a sidewall of the intermediate body 230 and the gas discharge unit 300; a connection pipe 420 disposed on the extension body 220 and coupled to the upper support pipe 410 and the electrostatic spray pipe 430; and a lower support pipe 450 formed by extending the electrostatic spray pipe 430 downward, wherein a portion of the electrostatic spray pipe 430 facing the vertical discharge part 310 has a three-prong electrostatic spray nozzle. 351 may be disposed, and a two-port electrostatic spray nozzle 352 may be disposed at a portion facing the curved discharge part 230 .

It may include an upper support unit 500 and a lower support unit 600 that fixedly support the electrostatic spraying unit 400 .

The intermediate body portion 230 includes: an intermediate fixed body portion 231 formed by extending the extended body portion 220 in a lower direction; and an intermediate coupling body part 232 coupled to the intermediate fixed body part 231 and the lower body part 240 through a coupling member.

The vertical discharge unit 310 and the curved discharge unit 320 are located in the inner space 270 of the body 200 , and the horizontal discharge unit 330 is located outside the body 200 . , The vertical discharge unit 310 and the curved discharge unit 320 are made of a conductive material to which a '+' lead wire is connected, and to prevent the horizontal discharge unit 330 and the body unit 200 from being electrically energized An insulating material spacer 440 may be further provided.

The upper support unit 500 includes an upper support unit cover 510; and a cylindrical cylinder 530 protruding from the upper support unit cover 510 in the longitudinal direction of the inside of the body 200 and guiding the introduced exhaust gas to turn; Including, the cylinder 530 may be heated to a constant temperature.

The lower support unit 600 may include a lower through hole 620 having a lower insulating member 630 on an inner wall formed to face the upper through hole 540 .

The intermediate coupling body portion 232 may be coupled through a coupling member while accommodating the lower support unit 600 therein.

A plurality of the penetrating members 520 are formed in the upper support unit cover 510, and an upper through hole 540 corresponding to the penetrating member 520 is formed in the bottom surface of the cylinder 530, , an upper insulating member 550 may be provided on an inner wall of the upper through hole 540 .

The cover part may be made of an insulating material.

The present invention can be provided in various combinations of possible forms among the above various solutions.

According to the swirl flow uniflow electrostatic precipitator of the present invention, coarse particles are sedimented through swirl flow and ultra-fine particles can be attached and removed by electrostatic spraying, so the particles contained in exhaust gas can be efficiently removed. There is this.

In addition, according to the dust collector of the present invention, since a small amount of liquid is used, it is possible to minimize the generation of wastewater after dust collection, and there is an advantage in that it is possible to reduce the treatment cost and improve the economical effect.

1 is a schematic front view of an electrostatic dust collector according to a preferred embodiment of the present invention.
2 is a schematic front view of a horizontal cleaning electrostatic dust collector according to a preferred embodiment of the present invention.
3 is a schematic side view of an electrostatic spray dust collector according to a preferred embodiment of the present invention.
4 is a schematic diagram of an intermediate coupling body according to a preferred embodiment of the present invention.
5 is a schematic diagram of an electrostatic spraying unit according to a preferred embodiment of the present invention.
6 is a side cross-sectional view of electrostatic spray pipes according to a preferred embodiment of the present invention.
7 is a schematic diagram of a three-port electrostatic spray nozzle according to a preferred embodiment of the present invention.
8 is a schematic diagram of a two-port electrostatic spray nozzle according to a preferred embodiment of the present invention.
9 is a schematic view of an upper support unit according to a preferred embodiment of the present invention.
10 is a schematic view of a lower support unit according to a preferred embodiment of the present invention.
11 is a schematic view in which the intermediate coupling body part and the lower support unit are coupled according to a preferred embodiment of the present invention.

Hereinafter, embodiments in which those of ordinary skill in the art to which the present invention pertains can easily practice the present invention will be described in detail with reference to the accompanying drawings. However, in the detailed description of the principle of operation of the preferred embodiment of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. Throughout the specification, when it is said that a certain part is connected to another part, it includes not only a case in which it is directly connected, but also a case in which it is indirectly connected with another element interposed therebetween.

In the present application, terms such as "comprises", "have", or "include" are intended to designate that the features, numbers, steps, components, parts, or combinations thereof described in the specification exist, and one or more other It should be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, the inclusion of any component does not exclude other components unless otherwise stated, but means that other components may be further included.

When a component is referred to as being “connected” or “coupled” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly coupled" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

The present invention will be described along with detailed examples according to the drawings. The same reference numerals are used for the same components in the drawings, and repeated descriptions of the same components are omitted.

1 is a schematic front view of an electrostatic dust collector according to a preferred embodiment of the present invention, FIG. 2 is a front schematic view of a horizontal cleaning electrostatic dust collector according to a preferred embodiment of the present invention, and FIG. 3 is an electrostatic dust collector according to a preferred embodiment of the present invention. It is a schematic side view of the spray dust collector.

1 to 3 , the swirl flow type uniflow electrostatic spray dust collector according to a preferred embodiment of the present invention includes a body part 200 , an electrostatic spray part 400 , a gas discharge part 300 , and a cleaning part 700 . and a preheating unit 800 .

When describing the above configurations in more detail, the body part 200 includes a cylindrical upper body part 210 having a predetermined height and inner diameter in the order from top to bottom, and a conical extended body part 220 of the upper and lower beam type. , it is a vertical tubular body composed of a cylindrical middle body portion 230 and a conical lower body portion 240 of the upper and lower narrows. An insulating body cover 211 having a circular hole (not shown) formed in the center is formed at the upper end of the upper body 210 , and the outer periphery of the body cover 211 is secured using a fastening means. A coupling part capable of fastening may be provided. The plate of the body cover 211 on the side of the central circular hole is provided with a groove (not shown) that can be in close contact with the upper support unit cover 510 below, and the groove is provided with the upper support unit cover 510 and the fastening member. A coupling portion capable of sealingly bonding is formed. In addition, while covering the combined upper support unit cover 510 and the body cover 211, the sealing cover 100 is hermetically coupled to the body cover 211 using a fastening member to seal the body portion 200. can be provided. The sealing cover 100 , the body cover 211 , and the upper support unit cover 510 are coupled to each other to constitute a cover part (not shown).

The body part 200 is made of a conductive material, and an empty space part 270 is formed therein. In addition, an exhaust gas inlet 250 having a predetermined cross-sectional area is provided on the side surface of the upper body 210, and exhaust gas containing various particulate pollutants is passed through the inlet 250 to the body part ( 200) into the internal space. A '+' lead wire is connected to the body portion 200, and an insulating material is added to the edge of the inlet 250 to be coupled to a supply pipe (not shown) for supplying external exhaust gas. An insulator may be installed on one side of the body to prevent a short circuit.

The gas discharge unit 300 for discharging the exhaust gas from which the particulate matter is separated to the outside is a vertical discharge unit 310 vertically disposed inside the intermediate body unit 230, and at the bottom of the vertical discharge unit 310 . It was composed of a curved discharge part 320 that is curved and extended at a certain angle, and a horizontal discharge part 330 located outside the intermediate body part 230 . The discharge unit 300 is made of a conductive material and may be connected to a '+' lead wire.

The cleaning unit 700 may be located to face the outer wall of the intermediate body portion 230, and preferably provided in a vertical direction to correspond to the arrangement position of the vertical discharge unit 310 of the gas discharge unit 300, which will be described later. It may be a vertical cleaning unit 710 . In the present invention, the vertical cleaning unit 710 may be arranged in three layers. The vertical cleaning unit 710 may include a cleaning liquid inlet 711 , a cleaning liquid pipe 712 , and a cleaning liquid spray nozzle 713 . After the cleaning liquid flows in through the cleaning liquid injection port 711 and the cleaning liquid flows into the cleaning liquid pipe 712 , the intermediate body through the cleaning liquid injection nozzle 713 is provided while penetrating the outer wall of the intermediate body 230 . It is injected into the inside of the unit 230 . The cleaning liquid injection nozzle 713 may be installed at an angle of less than 90° in the tangential direction of the outer surface of the intermediate body part 230 . The cleaning liquid sprayed through the cleaning liquid spray nozzle 713 may remove the fine dust layer attached to the inner wall surface of the intermediate body part 230 and the outer surface of the vertical discharge part 310 during the dust collection process. In the electrostatic spray dust collection process according to the present invention, as the "-" charge charges or surrounds the ultrafine particles and moves toward the "+" electrification part, the ultrafine particles accumulate on the outer surface of the electrification part, and a phenomenon such as fouling may occur. If the fouling continues, the "-" voltage may rise and dust collection efficiency may be rapidly reduced, and problems such as ignition due to a short-circuit caused by the voltage increase may occur. Therefore, in the electrostatic spray dust collection process, it is necessary to spray a cleaning solution that removes the attached ultrafine dust, that is, fouling. In the present invention, the cleaning unit 700 may be disposed to be spaced apart by a predetermined distance along the outer periphery of the outer wall of the intermediate body portion 230, and the number of cleaning units, the flow rate of the cleaning liquid, and the hydraulic pressure, etc. are determined by the electrostatic powder unit of the present invention. It may vary according to the processing capacity of the dust collector, fine dust characteristics, etc., and is not particularly limited as long as the above problems can be solved.

Also, the cleaning unit 700 may be a horizontal cleaning unit 720 disposed in a horizontal annular shape along the upper outer wall side of the intermediate body portion 230 . The cleaning liquid supplied from the outside of the horizontal cleaning unit 720 flows in through the cleaning liquid inlet 721 and penetrates the wall surface of the cleaning liquid pipe 722 through the cleaning liquid injection nozzle 723 provided in the intermediate body part 230. is sprayed into the The cleaning liquid injection nozzle 723 may be installed at an angle of less than 90° in the tangential direction of the outer surface of the intermediate body part 230 . In addition, one or more horizontal cleaning units 720 may be disposed in a vertical direction on the outer wall surface of the intermediate body portion 230 , and if the above problems can be solved, the horizontal cleaning unit 720 and the cleaning liquid spray nozzle 723 may be disposed. ) is not particularly limited.

In the present invention, the upper end of the upper support pipe 410, which will be described later, is connected to an external “-” lead wire, and a short circuit due to moisture occurs in the portion where the “-” lead wire is connected, resulting in a fire and voltage supply instability, resulting in power interruption, etc. may occur. In order to prevent dew condensation, which is the main cause of the above problems, in the present invention, a preheating unit 800 may be provided. A preheating unit 800 may be provided above the electrostatic spray dust collector according to the present invention. The preheating unit 800 may include a preheating housing 810 , a preheating heater 820 , an insulator 830 , and a preheating discharge unit 840 , and is disposed on the sealing cover 100 . The preheating housing 810 includes an upper surface and a side wall surface, and a lower end end surface of the side wall surface is closely coupled to the upper surface of the sealing cover 100 to form an internal preheating space. A preheating injection hole 811 may be formed at a lower portion of the sidewall of the preheating housing 810 through the sidewall of the preheating housing 810 . One or more preheating heaters 820 may be vertically disposed in a space between the preheating housing 810 and the sealing cover 100 while penetrating the upper wall of the preheating housing 810 . A heat insulating part 830 is provided in a space between the preheating housing 810 and the sealing cover 100 . The heat insulating part 830 is composed of an upper surface and a side side, and a lower end section of the side wall surface is closely coupled to the upper surface of the sealing cover 100 . In the present invention, the preheating heater 820 is preferably disposed in a space between the sidewall surface of the preheating housing 810 and the sidewall surface of the insulator 830 . An upper support pipe 410 to be described later may be disposed in a space between the heat insulating part 830 and the sealing cover 100 . In addition, an insulator inlet 831 is provided at the lower end of the side wall of the insulator 830 , and the gas introduced through the preheating inlet 811 is heated by the preheating heater 820 , and then the insulated inlet 831 is heated. ) is introduced into the inner space of the heat insulating part 830 . The inlet 831 of the heat insulating part may be preferably provided on a side wall surface opposite to the side wall surface of the heat insulating part 830 facing the preheating inlet 811 . A preheating discharge unit 840 is provided while penetrating through the heat insulating unit 830 and the top surface of the preheating housing 810 to discharge the preheating gas to the outside.

In addition, in the present invention, the preheating unit 800 is first operated before operation of the electrostatic spray dust collector to remove moisture in the air, and must be operated during the entire operation of the electrostatic spray dust collector. In the present invention, the preheating gas may use heated air or other heated gas, and in the present invention, it is not particularly limited as long as it is a gas capable of preventing a short circuit in the "-" lead wire connection part.

4 is a schematic diagram of an intermediate coupling body according to a preferred embodiment of the present invention.

Referring to FIG. 4 , the intermediate body portion 230 includes a cylindrical intermediate fixed body portion 231 and the intermediate fixed body portion 231 extending downward with the same diameter as the lower end diameter of the extended body portion 220 . It is positioned between the lower body portion 240 and is composed of a detachable intermediate coupling body portion 232 . The intermediate coupling body portion 232 has a cylindrical portion (not shown) having the same diameter as the intermediate fixed body portion 231 , an upper flange 234 , a lower flange 235 and a coupling member disposed on the inner wall surface of the cylindrical portion (233). The upper flange 234 may be closely coupled to a flange (not shown) formed at the lower end of the intermediate fixed body 231 , and the lower flange 235 is a flange formed at the upper end of the lower body portion. (not shown) can be closely coupled.

5 is a schematic diagram of an electrostatic spraying unit according to a preferred embodiment of the present invention.

Referring to FIG. 5 , the electrostatic spraying unit 400 includes a plurality of electrostatic spraying units (not shown) positioned in the inner space 270 of the body 200 , preferably four electrostatic spraying units. The units may be arranged to be spaced apart from each other by a predetermined distance, but the number is not limited thereto. The static spray unit includes an upper support pipe 410 disposed inside the upper body 210, a vertical body disposed in the extension body 220, and a lower end of the upper support pipe 410 and the electrostatic spray pipe ( A connection pipe 420 coupled and connected to the upper end of the 430), an electrostatic spray pipe 430 vertically disposed inside the intermediate body 230, and a lower support pipe extending from the lower end of the electrostatic spray pipe 430 (440). The electrostatic spray pipe 430 is disposed in a space between the intermediate body part 230 and the vertical discharge part 310 , and preferably may be disposed in an intermediate position. A plurality of static spray nozzles 450 are arranged to be spaced apart from each other by a predetermined distance in the electrostatic spray pipe 430 . The predetermined distance to be spaced apart may be several cm to several tens of cm, preferably 10 cm, in consideration of the uniform spraying of water to the dust collecting pole and the dust collecting effect while the overlapping portion is small when spraying. A '-' lead wire is connected to the electrostatic spraying unit. Fine droplets are formed and sprayed through the electrostatic spray nozzle to which a high voltage is applied to the electrostatic spray unit. Also, when a high voltage is applied to the nozzle and the liquid, the ions in the liquid move to the surface of the liquid by repulsive force and attractive force. Under tangential stress, a very thin liquid ligament like a thread is formed. As the liquid stream is broken by the disturbance of the surface shear stress acting on the tip of the liquid stream and the surface of the liquid stream, fine droplets are formed and ultra-fine particles can be attached to it. An insulator may be installed on one side of the electrostatic spraying unit to prevent a short circuit.

6 is a side cross-sectional view of electrostatic spray pipes according to a preferred embodiment of the present invention.

Referring to FIG. 6 , in the present invention, the electrostatic spray pipe 430 is configured by disposing a plurality of electrostatic spray monozzles 450 on a pipe having a uniform outer diameter. The inner diameter of the electrostatic spray pipe 430 can be designed and manufactured in a variety of nozzle flow rates by adding or subtracting the head difference between the top and bottom of the nozzle. Type a is a type in which the inner diameter of the pipe is constant and the diameter of the provided electrostatic spray nozzle is different. In the type b, the inner diameter of the pipe gradually increases from top to bottom to adjust the diameter of the electrostatic spray nozzle to make the flow rate uniform, and type c is The inner diameter of the pipe was configured to gradually decrease from top to bottom to make the diameter flow rate of the electrostatic spray nozzle uniform. When the outer diameter of the pipe and the diameter of the provided electrostatic spray nozzle are constant, it may be configured as the following type. In type d, the inner diameter of the pipe is upward and downward, and in type e, the internal diameter of the pipe gradually increases and then decreases again at a predetermined location in the g type. It was composed in the form of gradually increasing again at a predetermined position in the pipe while decreasing. The change in the inner diameter of the pipe and the change and configuration of the diameter of the electrostatic spray nozzle may vary depending on the characteristics of the inflow exhaust gas and the operating environment, and are not limited to the above-described forms.

7 is a schematic diagram of a three-port electrostatic spray nozzle according to a preferred embodiment of the present invention.

Referring to FIG. 7 , the electrostatic spray nozzle 450 may include a plurality of nozzle units n having the same diameter in the longitudinal and cross-sectional directions of the electrostatic spray pipe 430 to generate gas-liquid contact. Preferably, two or three or more nozzle units n may be provided on the cross-section of the electrostatic spray pipe 430 . Preferably, a plurality of three-hole electrostatic spray nozzles 451 are spaced apart from each other by a predetermined distance in the partial static spray pipe located in the space between the intermediate body part 230 and the vertical discharge part 310 of the static spray pipe 430 . Preferably, a plurality of two-port electrostatic spray nozzles 452 may be disposed spaced apart from each other by a predetermined distance in the partial static spray pipe located in the space between the intermediate body part 230 and the curved discharge part 320. there is. As long as the sprayed liquid and the exhaust gas can sufficiently contact each other, the type of the electrostatic spray nozzle and the number of nozzle units are not limited thereto. In addition, the nozzle unit may have any one or two or more shapes of a circle, a slit, a triangle, a quadrangle, a pentagon, a honeycomb, and a polygon.

In addition, the nozzle portion n of the three-port electrostatic spray nozzle 451 is composed of three nozzle portions n1, n2, and n3. It is formed while penetrating the pipe wall of the electrostatic spray pipe 430 at a predetermined distance and protrudes outside the pipe, and with the central point of the cross section of the electrostatic spray pipe 430 as a vertex to the center point of the n1 section, and a line from the vertex to the n2 section The angle between the lines up to the center point may form an acute angle or a right angle, and may preferably be 90°. In addition, the line from the vertex to the center point of the cross-section n3 and the line formed from the vertex to the center point of the cross-section of n1 or n2 may form an obtuse angle of the same size, preferably 135°. Preferably, the n1 and n2 are disposed to face the inner wall surface of the intermediate body part 230 at a predetermined angle, and the n3 may be disposed to face the vertical discharge part 310 .

8 is a schematic diagram of a two-port electrostatic spray nozzle according to a preferred embodiment of the present invention.

Referring to FIG. 8 , the two nozzle portions n1 and n2 of the two-port electrostatic spray nozzle 452 are formed while penetrating the pipe wall of the electrostatic spray pipe 430 and protrude out of the pipe while being spaced apart by a predetermined distance. The angle between the line formed from the vertex to the center point of the cross-section n2 with the center point of the cross section of the spray pipe 430 as the vertex may form an acute or right angle, preferably 90°. Preferably, the nozzle parts n1 and n2 may be disposed to face the inner wall surface of the intermediate body part 230 at a predetermined angle.

9 is a schematic view of an upper support unit according to a preferred embodiment of the present invention.

9, the upper support unit 500 passes through the central hole of the body cover 211, and the upper support unit cover 510 located on the upper end of the upper support unit 500 is the body cover ( 211) and may be coupled using a coupling member. Preferably, a certain groove is formed on the upper side along the side where the center hole is formed of the body cover 211 and a fastening part may be formed in the groove. In addition, a certain groove is formed from the lower part to the upper part along the outer periphery of the upper support unit cover 510, and one or more fastening parts may be formed in the groove. The size of the groove of the upper support unit cover 510 corresponds to the groove formed along the central hole side of the body cover 211 , and the fastening part is formed to correspond to the fastening part formed in the groove of the body cover 211 . .

A plurality of penetrating members 520 penetrating through the upper support unit cover 510 are provided, and the upper support pipe 410 passes through the penetrating member 520 to connect the upper support unit 500 inside and outside the upper support unit 500 . It is positioned on the upper body part 210 . The upper end of the upper support pipe 410 is located outside, and the support pipe 410 passing through the penetrating member 520 extends vertically to further include a protective member. The protection member is not particularly limited as long as it is an insulating material or a material having a certain rigidity and is capable of protecting the upper support pipe 410 .

In addition, a sealing cover 100 is disposed on the upper side of the upper support unit cover 510 and is sealed and coupled through a fastening part while surrounding the upper support unit cover 510, and then in close contact with the body cover 211 to form a fastening part. A cover portion for sealing the body portion 200 is formed through the sealing coupling.

A cylindrical cylinder 530 protruding from the upper support unit cover 510 in the longitudinal direction of the inside of the body 200 is provided, and the cylinder serves to induce the exhaust gas introduced from the outside to turn. . In addition, to prevent the condensation of moisture inside the cylinder, the wall surface of the cylinder is heated and maintained at a predetermined temperature or more, and the heating method may be an indirect heating method using a heat conduction wire, but is not limited thereto.

An upper through-hole 540 is formed in a bottom surface of the cylinder 530 to face the penetrating member 520 , and the upper support pipe 410 passing through the penetrating member 520 is formed through the upper through-hole. An upper insulating member 550 may be provided on an inner wall of the upper through-hole 540 , extending into the upper body 210 through a 540 .

10 is a schematic view of a lower support unit according to a preferred embodiment of the present invention.

Referring to FIG. 10 , the lower support unit 600 mainly includes a lower plate 610 and a lower through hole 620 through which the lower support pipe 440 provided in the lower plate passes. A lower insulating bonsai 630 may be provided on the outer periphery of the lower through hole 620 .

11 is a schematic view in which the intermediate coupling body part and the lower support unit are coupled according to a preferred embodiment of the present invention.

Referring to FIG. 11 , the intermediate coupling body part 232 and the lower support unit 600 are disposed between the intermediate fixed body part 231 and the lower body part 240 after they are coupled.

The particle material and the cleaning solution separated in the swirl flow type Uniflow electrostatic spray dust collector may be discharged to the outside through the discharge unit 260 provided at the lower end of the lower body unit 240 .

As described above in detail a specific part of the content of the present invention, to those of ordinary skill in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, It is obvious to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and it is natural that such variations and modifications fall within the scope of the appended claims.

100: sealing cover
200: body part
211: body cover
210: upper body portion
220: extended body portion
230: middle body portion
231: middle fixed body portion
232: intermediate coupling body portion
233: coupling member
234: upper flange
235: lower flange
240: lower body part
250: inlet
260: discharge unit
270: space part
300: gas outlet
310: vertical outlet
320: curved discharge weight
330: horizontal discharge unit
340: separation part
400: electrostatic spraying unit
410: upper support pipe
420: connecting pipe
430: electrostatic spray pipe
440: lower support pipe
450: electrostatic spray nozzle
451: 3 hole electrostatic spray nozzle
452: 2 ball electrostatic spray nozzle
500: upper support
510: upper support unit cover
520: penetrating member
530: cylinder
540: upper through hole
550: upper insulating member
600: lower support unit
610: lower plate
620: lower through hole
630: lower insulating member
640: lower coupling member
710: cleaning unit
710: vertical cleaning unit
720: horizontal cleaning unit
711, 721: cleaning solution inlet
712, 722: cleaning liquid pipe
713, 723: cleaning liquid spray nozzle
800: preheating unit
810: preheat housing
811: external preheat inlet
820: preheat heater
830: insulation
831: insulation inlet
832: preheat outlet
a: -lead wire
b: + lead wire
n, n1, n2, n3: nozzle unit

Claims (10)

Consists of an upper body part 200, an extended body part 220, an intermediate body part 230 and a lower body part 240, and the upper side of the upper body part 200 has an inlet 250 for introducing exhaust gas. ) is provided, the upper end of the upper body portion 200 is a sealed vertical tube body portion 200;
an electrostatic spraying unit 400 having a plurality of electrostatic spraying nozzles 450 disposed inside the body 200;
It is composed of a vertical discharge unit 310, a curved discharge unit 320, and a horizontal discharge unit 330, and is disposed while penetrating the sidewall at a predetermined position of the body unit 200 to discharge purified gas to the outside. gas discharge unit 300; and
a cleaning unit 700 having a plurality of spray nozzles disposed inside the body 200;
including,
The electrostatic spraying unit 400 includes an electrostatic spraying pipe 430 having a constant outer diameter and an upper and lower light shape provided with a plurality of electrostatic spraying nozzles 450 ,
A swirl flow type uniflow electrostatic spray dust collector in which a '+' lead wire is connected to the body part 200 and a '-' lead wire is connected to the electrostatic spray pipe 430 .
The method of claim 1,
The electrostatic spraying unit 400,
an upper support pipe 410 disposed in the inner space of the upper body 200;
an electrostatic spray pipe 430 disposed to be spaced apart between a sidewall of the intermediate body 230 and the gas discharge unit 300;
a connection pipe 420 disposed on the extension body 220 and coupled to the upper support pipe 410 and the electrostatic spray pipe 430; and
The electrostatic spray pipe 430 includes a lower support pipe 450 formed by extending downward,
A three-prong electrostatic spray nozzle 351 is disposed on a portion of the electrostatic spray pipe 430 facing the vertical discharge unit 310 , and a two-ball electrostatic spray nozzle 352 is disposed at a portion facing the curved discharge unit 230 . ), a swirl flow type uniflow electrostatic spray dust collector.
The method of claim 1,
A swirling flow type uniflow electrostatic spray dust collector including an upper support unit 500 and a lower support unit 600 for fixedly supporting the electrostatic spraying unit 400 .
The method of claim 1,
The middle body part 230,
an intermediate fixed body portion 231 formed by extending the extended body portion 220 in a lower direction; and
A swirling flow type uniflow electrostatic spray dust collector including the intermediate fixed body portion 231 and the intermediate coupling body portion 232 coupled to the lower body portion 240 through a coupling member.
The method of claim 1,
The vertical discharge unit 310 and the curved discharge unit 320 are located in the inner space 270 of the body 200 , and the horizontal discharge unit 330 is located outside the body 200 . , The vertical discharge unit 310 and the curved discharge unit 320 are made of a conductive material to which a '-' lead wire is connected, and to prevent the horizontal discharge unit 330 and the body unit 200 from being electrically energized A swirl flow type uniflow electrostatic spray dust collector further provided with an insulating material spaced portion 440 .
4. The method of claim 3,
The upper support unit 500,
upper support unit cover 510; and
a cylindrical cylinder 530 protruding from the upper support unit cover 510 in the longitudinal direction of the inside of the body 200 to induce the introduced exhaust gas to turn; including,
The cylinder 530 is a swirl flow type uniflow electrostatic spray dust collector that is heated to a constant temperature.
4. The method of claim 3,
The lower support unit 600 is a swirl flow type uniflow electrostatic spray dust collector including a lower through hole 620 having a lower insulating member 630 on an inner wall formed to face the upper through hole 540 .
5. The method of claim 4,
The intermediate coupling body part 232 is a swirl flow type uniflow electrostatic spray dust collector that is coupled through a coupling member while accommodating the lower support unit 600 therein.
7. The method of claim 6,
A plurality of the penetrating members 520 are formed in the upper support unit cover 510, and an upper through hole 540 corresponding to the penetrating member 520 is formed in the bottom surface of the cylinder 530, , a swirl flow type uniflow electrostatic spray dust collector provided with an upper insulating member 550 on an inner wall of the upper through-hole 540 .
10. The method according to any one of claims 1 to 9,
The cover part is a swirl flow type uniflow electrostatic spray dust collector made of an insulating material.

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