WO2020246802A1 - Dispositif électrique de collecte de poussière et son procédé de fabrication - Google Patents

Dispositif électrique de collecte de poussière et son procédé de fabrication Download PDF

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Publication number
WO2020246802A1
WO2020246802A1 PCT/KR2020/007213 KR2020007213W WO2020246802A1 WO 2020246802 A1 WO2020246802 A1 WO 2020246802A1 KR 2020007213 W KR2020007213 W KR 2020007213W WO 2020246802 A1 WO2020246802 A1 WO 2020246802A1
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Prior art keywords
high voltage
bent portion
conductive filter
electric dust
electric
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PCT/KR2020/007213
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English (en)
Korean (ko)
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이혜문
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주식회사 알링크
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Publication of WO2020246802A1 publication Critical patent/WO2020246802A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/51—Catch- space electrodes, e.g. slotted-box form
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints

Definitions

  • the present invention relates to an electric precipitator, and more particularly, to an electric precipitator including a conductive dust collecting filter and a method of manufacturing the same.
  • fine dust Due to its small size, fine dust does not get caught in the mouth or nasal bronchi during human breathing, but penetrates deep into the alveoli, and has optical properties such as refraction and scattering of light, causing many obstacles to securing vision.
  • fine dust contains many organic and inorganic harmful substances, so fine dust that has penetrated into the lungs may remain in the lungs.
  • various organic and inorganic harmful substances are delivered to the human body, causing very serious respiratory diseases such as pneumonia, lung cancer, and bronchitis.
  • Fine dust is not only mobile pollutants such as automobiles, but also fixed pollutants generated by household heating and industrial energy consumption, as well as yellow dust generated from the Gobi Desert in China and the recent large-scale industrialization of China. There are many difficulties because of the dust.
  • the HEPA filter shows a high fine dust filtration rate capable of collecting 99.97% of fine dust of 0.3 ⁇ m class in diameter.
  • the HEPA filter is very effective in removing fine dust, but the filter penetration efficiency of the air is very low because the nano sized fine polymer or glass fiber is very tightly entangled. That is, the pressure loss is very large. Accordingly, when the HEPA filter is used in an air cleaning system that removes fine dust, a large-capacity blower is required, power consumption is large, and noise and vibration are severe, so that additional equipment for sound insulation and vibration insulation is required. In addition, the HEPA filter used once cannot be reused, so it has to be replaced every 6 to 12 months.
  • the principle of removing fine dust using electric dust collection is that an electrode to which a high voltage is applied forms a strong electric field between the dust collection plates to electrically charge the passing dust and collect and remove the dust on the dust collection plate. Accordingly, in order to improve dust collection efficiency, the electric dust collection keeps the distance between the inlet and the outlet long, and keeps the distance between the high voltage electrode and the dust collection plate short.
  • the electric dust collection is characterized in that the dust collecting plate and the high-voltage electrode are horizontal and the air inlet and outlet are open to the outside air, but it can be said that it is a difficult structure to improve the efficiency of removing fine dust.
  • the present disclosure is to provide an electric precipitator capable of collecting and removing fine dust with high efficiency by forming a uniform electric field in a conductive filter.
  • the electrostatic precipitator forms a plurality of electrode arrangement spaces with a bent portion 110 bent with a predetermined bending interval and a bending depth and a partition wall 120 connecting the bent portion, and A conductive filter 100 for collecting dust, and a high voltage electrode 200 provided in each of the plurality of electrode arrangement spaces and electrically connected to a power source, and generating an electric field by applying a voltage from the power source may be included.
  • the conductive filter 100 may have an air permeability of 15cc/cm 2 /s to 400cc/cm 2 /s.
  • the conductive filter 100 is from the group consisting of printing with carbon ink, printing with silver-containing paint and ink, printing with gold-containing paint and ink, printing with copper-containing paint and ink, or printing or coating with aluminum-containing ink on the surface of the sheet. It may be coated with 1 or more.
  • the sheet of the conductive filter 100 may be an insulating sheet.
  • the bent portion may be an inner bent portion 112 and an outer bent portion 111 alternately bent along the longitudinal direction 300.
  • the inner bent portion 112 and the outer bent portion 111 may be formed in the same shape.
  • the bent portion 110 may be formed in a continuous'D' shape having the same opening and closing portions at a position facing the air flow direction.
  • the bent portion 110 may be formed continuously in a zigzag shape by connecting mountains and valleys at a position facing the air flow direction.
  • the high voltage electrode 200 may have a coating layer 201 of a dielectric material on a conductive material.
  • the conductive material may include at least one selected from the group consisting of gold, silver, nickel, copper, aluminum, and carbon.
  • the dielectric material has a dielectric constant of 1 to 10, has flexibility, and may be a material capable of solidification.
  • the dielectric material may be one or more of the group consisting of PET laminate film, glass, mica, mylar, neoprene, Plexiglas, polyethylene, PVC, and Teflon.
  • the high voltage electrodes 200 may be disposed parallel to each other in the plurality of arrangement spaces.
  • the high voltage electrode 200 may be provided at a position in which a distance between the partition walls 120 positioned around the plurality of electrode arrangement spaces is symmetrical to each other.
  • the filtration rate of the gas passing through the conductive filter may be 3 cm/s to 30 cm/s.
  • the electrostatic precipitator may have a fine dust removal efficiency of 90% or more in Equation 1 below.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electrostatic precipitator 10.
  • PM 1.0 is the particle diameter of the dust in a micrometer (micrometer).
  • the electrostatic precipitator may further include a fixing part for fixing the high voltage electrode 200 in the electrode arrangement space.
  • the electrostatic precipitator may further include a particle charging device on an upstream side in the air flow direction.
  • the particle charging device may include a tungsten wire and a stainless steel plate.
  • the particle charging device may have a distance of 0.1 cm to 100 cm from the electric dust collecting device.
  • the electric dust collecting device may have a structure in which the air inlet is exposed to the outside and the air outlet is closed to the outside.
  • dust collection may occur up to three times.
  • the electric dust collecting device can remove fine dust with high efficiency.
  • a pressure loss due to passing through the dust collecting filter may be small.
  • the electric dust collector according to an aspect of the present invention may be reusable.
  • FIG. 1 is a perspective view of an electric precipitator in a'D' shape according to an embodiment of the present disclosure.
  • FIG. 2 is a plan view of an electric precipitator in a'D' shape according to an embodiment of the present disclosure.
  • FIG 3 is a perspective view of an electric precipitator having a shape in which mountains and valleys are connected according to an exemplary embodiment of the present disclosure.
  • FIG. 4 is a plan view of an electric precipitator having a shape in which mountains and valleys are connected according to an exemplary embodiment of the present disclosure.
  • 6A to 6C illustrate a dust collecting mechanism of the electric precipitator having a shape in which mountains and valleys are connected according to an exemplary embodiment of the present disclosure.
  • FIGS. 7A to 7D are diagrams illustrating a dust collecting mechanism of the'D'-shaped electric precipitator according to an embodiment of the present disclosure.
  • FIGS. 8A and 8B are schematic diagrams illustrating dust collection according to an anode and a cathode of a high voltage electrode of an electric dust collector according to an exemplary embodiment of the present disclosure.
  • FIG. 9 is a photograph of an electric precipitator in which a mountain and a valley are connected according to an exemplary embodiment of the present disclosure.
  • Reference numeral 300 in the drawing denotes the length direction of the conductive filter, and reference numeral 130 in the drawing denotes the width direction of the conductive filter.
  • FIG. 10 is a photograph of an electric precipitator in a'D' shape according to an embodiment of the present disclosure.
  • Reference numeral 300 in the drawing denotes the length direction of the conductive filter, and reference numeral 130 in the drawing denotes the width direction of the conductive filter.
  • first, second and third are used to describe various parts, components, regions, layers, and/or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, a first part, component, region, layer or section described below may be referred to as a second part, component, region, layer or section without departing from the scope of the present invention.
  • the conductive filter 100 may include a bent portion 110 and a partition wall 120.
  • the bent portion may be a conductive filter portion bent in a predetermined shape, and the partition wall may be an unfolded cut-off filter portion connecting the bent portions to each other.
  • the bent portion 110 may include an outer bent portion 111 in a direction facing the air flow and an inner bent portion 112 in a portion where the air flow exits.
  • the bent part 110 and the partition wall 120 of the conductive filter may be disposed to have a predetermined interval to form a space for arranging a plurality of electrodes.
  • the high voltage electrode 200 may be disposed in the plurality of electrode arrangement spaces to form an electric field.
  • filtration rate means a value divided by the total area of the conductive filter passing through the flow rate passing through the conductive filter, and the unit is cm/s.
  • FIGS. 1 and 3 are views showing an electric precipitator for collecting fine dust according to an embodiment of the present invention.
  • the electrostatic precipitator according to an embodiment of the present invention may include a conductive filter 100 and a high voltage electrode 200.
  • the conductive filter 100 may be formed of a partition wall 120 connecting the bent portion 110 and the bent portion, and a width 130 of the conductive filter.
  • the bent portion may include an outer bent portion 111 and an inner bent portion 112.
  • the conductive filter 100 may be alternately bent along the length direction 300 of the electrostatic precipitator perpendicular to the conductive filter width 130.
  • the outer bent portion 111 and the inner bent portion 112 may be formed in the same shape.
  • a'D' shape having the same opening and closing portion may be formed in succession at a position facing the air flow direction (FIGS. 1 and 2).
  • the primary dust collection is dust collection by mechanical filter dust collection in a portion where the electric field is weak or not formed (FIG. 7A).
  • the secondary dust collection is electric dust collection (FIGS. 7B and 7C) in which fine dust particles passed through without being collected in the primary dust collection are collected by the conductive filter by an electric field formed between the high voltage electrode and the conductive filter.
  • the third dust collection is mechanical filtration dust collection by a conductive filter in a portion where the electric field is weak or not formed before the fine dust particles that are not collected even in the secondary dust collection are finally discharged to the outside (FIG. 7D).
  • the primary dust collection is mechanical filter dust collection by a conductive filter in a portion where the electric field is weak or not formed (FIG. 6A).
  • the secondary dust collection is electrical dust collection (FIG. 6B) in which fine dust particles passed through without being collected in the primary dust collection are collected by the conductive filter by an electric field formed between the high voltage electrode and the conductive filter.
  • the third dust collection is mechanical filter dust collection by a conductive filter in a portion where the electric field is weak or not formed before the fine dust particles that are not collected even in the secondary dust collection are finally discharged to the outside (FIG. 6C).
  • the electrostatic precipitator according to an embodiment of the present disclosure is capable of collecting dust three times in total as described above, so that even when a filter having a large air permeability is used, the efficiency of removing fine dust is improved compared to the first dust collection of the conventional electric precipitator.
  • the pressure loss caused by can be minimized.
  • the conductive filter 100 may have an air permeability of 15 cc/cm 2 /s to 400 cc/cm 2 /s.
  • the air permeability refers to the volume of gas that can pass through the filter in an area unit of 1 cm 2 for a period of 1 second when an air pressure of 125 Pa is applied to the front of the filter.
  • the conductive filter 100 is composed of carbon ink printing, silver-containing paint and ink printing, gold-containing paint and ink printing, copper-containing paint and ink printing, or aluminum-containing ink printing or coating on the surface of the sheet. It may be coated with one or more in the group. Specifically, the aluminum nanostructure may be coated on the surface of the unit fibers constituting the nonwoven sheet.
  • the filtering speed of the gas containing contaminants passing through the conductive filter may be 3 cm/s to 30 cm/s. Specifically, the filtering speed of the gas containing contaminants passing through the conductive filter may be 4 cm/s to 20 cm/s, more specifically 5 cm/s to 15 cm/s.
  • the filtration speed is less than 3 cm/s, the amount of air to be purified is relatively small and the filtration speed is slow, making it difficult to improve the cleanliness of the space to be cleaned.
  • the filtration speed is more than 30 cm/s, Since the filtration speed is too fast, the cleaning target space may not be preferably cleaned due to pollutants that are not filtered and discharged.
  • the high voltage electrode 200 is provided in a plurality of electrode arrangement spaces formed of a partition wall 120 connecting the bent portion 110 and the bent portion to be electrically connected to a power source, and a voltage is applied from the power source to form an electric field. I can.
  • the high voltage electrodes 200 may be disposed parallel to each other in a plurality of electrode arrangement spaces.
  • the high voltage electrode may be provided at a position in which the distances to the partition walls 120 positioned around the plurality of electrode arrangement spaces are symmetrical to each other.
  • the high voltage electrode 200 may include a conductive material 202 and a coating layer 201 of a dielectric material. Specifically, the surface of the conductive material 202 may be coated with the dielectric material 201. Specifically, the conductive material 202 may include at least one selected from the group consisting of gold, silver, nickel, copper, aluminum, and carbon. More specifically, the conductive material 202 may be the same as the conductive filter material.
  • the high voltage electrode 200 When a conductive material coated with a dielectric material is used as the high voltage electrode 200, while maintaining a constant electric field between the conductive filter 100 and the high voltage electrode 200, discharge and sparking even when the distance between the high voltage electrode and the conductive filter becomes close. Can be prevented.
  • the dielectric material has a dielectric constant of 1 to 10, has flexibility, and may be a material capable of solidification.
  • the dielectric material may be one or more from the group consisting of PET laminate film, glass, mica, mylar, neoprene, Plexiglas, polyethylene, PVC, and Teflon. .
  • the dielectric material may be a PET laminate film.
  • the electrostatic precipitator of the present disclosure may further include a fixing unit for fixing the high voltage electrodes in the plurality of electrode arrangement spaces.
  • the electrostatic precipitator of the present disclosure may further include a particle charging device on an upstream side in the air flow direction.
  • the particle charging device may include a tungsten wire and a stainless steel plate.
  • the particle charging device may have a distance of 0.1 cm to 100 cm from the electric dust collecting device. Specifically, the distance may be 0.5 cm to 10 cm, more specifically 1 cm to 5 cm. If the distance is less than 0.1 cm, a discharge phenomenon may occur between the metal wire to which the high voltage is applied and the conductive filter that is connected to the ground that constitutes the electric precipitator, so keep the minimum distance without such a discharge phenomenon as possible. I need it. If the distance between the charging device and the electric precipitator is far away, it takes up more space than the technical fine dust collection efficiency, and there is a disadvantage that the size of the air cleaning system for removing fine dust increases. In the case of this, it is desirable to keep it at most 5 cm or less, and in the case of industrial application, it may be desirable to keep it within a maximum of 100 cm.
  • the electrostatic precipitator according to an exemplary embodiment of the present disclosure has a fine dust removal efficiency of 90% or more, specifically 90% or more and less than 100%, more specifically 95% or more and less than 100%, and more specifically 99% or more and less than 100%. I can.
  • N0 is the concentration of 1.0 PM of air introduced into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electrostatic precipitator 10.
  • PM 1.0 is the particle diameter of 1.0 um (micrometer).
  • the conductive filter 100 coated with an aluminum nanostructure having a ventilation airway of 297 cc/cm 2 /sec and a length of 277 mm in the width direction 130 of the conductive filter is a bent width of 7 mm, and the length of the partition wall 120 At a position facing the air flow direction so that the value is 22 mm, the opening and the closing part were bent so that the same' ⁇ ' shape was continuous.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with PET laminate film on both sides.
  • the length of the conductive filter in the width direction of the high voltage electrode is 277 mm, and the height in the barrier direction is 15 mm.
  • the length of the conductive filter inside the high voltage electrode was 277 mm, and the height was 10 mm.
  • the high voltage electrode was installed so as to be 6 to 7 mm away from the end of the bent part.
  • the number of bent portions 110 and the number of high voltage electrodes 200 were 39 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.31 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire.
  • the total number of tungsten wires was 13, and the number of stainless steel plates was 14.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 5.0 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 4.5kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a distance of 3.5 cm between the particle charging device and the electric precipitator.
  • the fine dust removal efficiency was measured by the following [Equation 1] by varying the flow rate of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 1 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on an area of 0.31 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • the conductive filter 100 coated with an aluminum nanostructure having a ventilation rate of 297 cc/cm 2 /sec and a length of 296 mm in the width direction 130 of the conductive filter is 10 mm in the bending width of the bent portion 110, and the length of the partition wall 120 At a position facing the air flow direction so as to be 35 mm, the opening and the closure were bent so that the same'D' shape was continuous.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 300 mm, and the height in the barrier direction is 30 mm.
  • the length of the conductive filter inside the high voltage electrode was 300 mm, and the height was 20 mm.
  • the high voltage electrode was installed so as to be 4 to 5 mm apart from the end of the bent part.
  • the number of bent portions 110 and the number of high voltage electrodes 200 were 39 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.5452 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire. There were a total of 14 tungsten wires and a total of 15 stainless steel plates.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 4.3 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 3.0 kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a 1.5 cm gap between the particle charging device and the electric precipitator.
  • the fine dust removal efficiency was measured by the following [Equation 1] by varying the flow rate of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 2 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on an area of 0.5452 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • the conductive filter 100 coated with an aluminum nanostructure having a ventilation rate of 297 cc/cm 2 /sec and a length of 277 mm in the width direction of the conductive filter 130 is 10 mm in the bend width of the bent part 110, and the length of the partition wall 120
  • the mountain and valley were connected to each other at a position facing the air flow direction so that the value was 22 mm, and it was bent so that it was continuously formed in a zigzag shape.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with PET laminate film on both sides.
  • the length of the conductive filter in the width direction of the high voltage electrode is 277 mm, and the height in the barrier direction is 15 mm.
  • the length of the conductive filter inside the high voltage electrode was 277 mm, and the height was 10 mm.
  • the high voltage electrodes were installed to be 6 to 7 mm apart from the end of the bent portion. In this case, the number of bent portions 110 and the number of high voltage electrodes 200 were 51 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.31 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire.
  • the total number of tungsten wires was 13, and the number of stainless steel plates was 14.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 5.0 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 4.0 kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a distance of 3.5 cm between the particle charging device and the electric precipitator.
  • the fine dust removal efficiency was measured by the following [Equation 1] by varying the flow rate of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 3 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on an area of 0.5452 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • the mountain and the valley were connected to each other at a position facing the air flow direction so that it became 35 mm, and it was bent to form a zigzag shape continuously.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 300 mm, and the height in the barrier direction is 30 mm.
  • the length of the conductive filter inside the high voltage electrode was 300 mm, and the height was 20 mm.
  • the high voltage electrode was installed so as to be 9 to 10 mm away from the end of the bent portion.
  • the number of bent portions 110 and the number of high voltage electrodes 200 were 51 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.5568 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire. There were a total of 14 tungsten wires and a total of 15 stainless steel plates.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 4.4 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 3.4 kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a 1.5 cm gap between the particle charging device and the electric precipitator.
  • the efficiency of removing fine dust was measured by the following [Equation 1] by varying the filtration speed of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 4 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on an area of 0.5568 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • the conductive filter 100 coated with an aluminum nanostructure having a ventilation airway of 297cc/cm 2 /sec and a length of 296mm in the width direction 130 of the conductive filter is a bend width of 12mm and a length of the partition wall 120 It was bent to form a zigzag shape continuously by connecting the mountain and the valley at a position facing the air flow direction so as to be 35 mm.
  • the direction in which the bending is continued is the conductive filter longitudinal direction 300.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 300 mm, and the height in the barrier direction is 30 mm.
  • the length of the conductive filter inside the high voltage electrode was 300 mm, and the height was 20 mm.
  • the high voltage electrode was installed so as to be 6 to 7 mm away from the end of the bent part.
  • the number of bent portions 110 and the number of high-voltage electrodes 200 were 81 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.7082 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire. There were a total of 14 tungsten wires and a total of 15 stainless steel plates.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 4.5 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 2.5 kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a 1.5 cm gap between the particle charging device and the electric precipitator.
  • the efficiency of removing fine dust was measured by the following [Equation 1] by varying the filtration speed of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 5 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on the area of 0.7082 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • the conductive filter 100 coated with an aluminum nanostructure having a ventilation rate of 297 cc/cm 2 /sec and a length of 296 mm in the width direction of the conductive filter 130 is the bent width of the bent portion 110 is 10 mm, and the length of the partition wall 120
  • the mountain and the valley were connected to each other at a position facing the air flow direction so that it became 35 mm, and it was bent to form a zigzag shape continuously.
  • the direction in which the bending is continued is the conductive filter longitudinal direction 300.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is formed by cutting the same material as the material used as the conductive filter into a predetermined width and coating 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 300 mm, and the height in the barrier direction is 30 mm.
  • the length of the conductive filter inside the high voltage electrode was 300 mm, and the height was 20 mm.
  • the high voltage electrode was installed so as to be 6 to 7 mm away from the end of the bent part.
  • the number of bent portions 110 and the number of high-voltage electrodes 200 were 81 to make an electric dust collector.
  • the bent conductive filter 100 was completely unfolded, the area was 0.8584 m 2 .
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire. There were a total of 14 tungsten wires and a total of 15 stainless steel plates.
  • Dust removal efficiency (PM 1.0) of 1.0 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device. At this time, a DC voltage of 4.4 kV was applied to the tungsten wire of the particle charging device, and the stainless steel plate was grounded. A DC voltage of 3.0 kV was applied to the high voltage electrode 200 of the electric dust collector, and the conductive filter 100 was grounded. There was a 1.5 cm gap between the particle charging device and the electric precipitator.
  • the efficiency of removing fine dust was measured by the following [Equation 1] by varying the filtration speed of air passing through the particle charging device and the electric precipitator.
  • N0 is the concentration of 1.0 PM of air flowing into the particle charging device
  • N1 is the concentration of 1.0 PM of air that has passed through the electric precipitator 10.
  • Table 6 shows the fine dust removal efficiency when the filtration speed was changed.
  • the filtration speed was calculated from the flow rate based on an area of 0.8584 m 2 in which the bent portion of the conductive filter was completely unfolded.
  • a conductive filter 100 coated with an aluminum nanostructure having a ventilation airway of 297 cc/cm 2 /sec and a length of 275 mm in the width direction of the conductive filter 130 is provided with a bend width of 6 mm and a length of the partition wall 120. It was bent so that the mountain and the valley were connected to each other in a position facing the air flow direction so as to be 42 mm and formed continuously in a zigzag shape. The direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110. The plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is a silver-plated conductive fiber cut into a certain width and coated 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 275 mm, and the height in the barrier direction is 50 mm.
  • the length of the conductive fiber in the high voltage electrode was 265 mm and the height was 42 mm.
  • the high-voltage electrode was installed so that it was located in the center of the filter bent body and the bent body as possible, and 6 to 7 mm apart from the bent end.
  • the electric precipitator was made so that the number of bent portions 110 and the number of high voltage electrodes 200 are composed of 62 at the top and 61 at the bottom.
  • Cross-sectional area of the filter was 0.106m2 and all of the bent filter area of the entire piece condition is 1.408m 2.
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire.
  • Tungsten wire was composed of a total of 14 lines, and a total of 15 stainless steel plates were made.
  • Dust removal efficiency of 0.3 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device.
  • the high voltage applied to the electric precipitator and the high voltage applied to the tungsten wire of the particle charging device are shown in Table 7 below.
  • this experiment is the air volume because holding widely available conductive filter area to determine the likelihood of high particulate matter removal efficiencies at high air volume in 100CMH (m 3 / hr) to 350CMH (m 3 / hr) 50CMH (m 3 / hr )
  • the efficiency of fine dust removal was measured and evaluated at each high voltage application condition, changing at intervals.
  • the filter media velocity of the air passing through the particle charging device and the electric precipitator was varied by varying the air volume as described above, and the efficiency of removing fine dust was measured by the following [Equation 2].
  • N0* is the number concentration of particles with a size of 0.3 ⁇ m or less contained in the air flowing into the particle charging device
  • N1* is the number concentration of particles with a size of 0.3 ⁇ m or less in the air that has passed through the electrostatic precipitator 10. to be.
  • Table 8 shows that the applied voltage is 2.3kV for the electric dust collector, 4.5kV for the charging device, Table 9 is 2.3kV for the electric dust collector, 4.7kV for the charging device, and Table 8 is 3.0kV for the electric dust collector and 4.5kV for the charging device. It was measured by applying.
  • a conductive filter 100 coated with an aluminum nanostructure having a ventilation airway of 297 cc/cm 2 /sec and a length of 293 mm in the width direction of the conductive filter 130 has a bend width of 5 mm and a length of the partition wall 120 It was bent so that the mountain and the valley were connected to each other in a position facing the air flow direction so as to be 28 mm and formed continuously in a zigzag shape.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is a silver-plated conductive fiber cut to a certain width and coated 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 285 mm, and the height in the barrier direction is 28 mm.
  • the length of the conductive fiber in the high voltage electrode was 279 mm and the height was 24 mm.
  • the high voltage electrode was placed in the center of the filter bent body and the bent body possible.
  • the electric precipitator was made so that the number of bent portions 110 and the number of high voltage electrodes 200 are 80 at the top and 79 at the bottom.
  • Cross-sectional area of the filter was 0.118m 2, and all of the bent filter area of the entire piece condition is 1.296m 2.
  • the high-voltage electrode 200 is used to measure the high voltage electrode 200 in both the upper and lower parts of the electric precipitator and two devices installed only in the upper part. And experimented.
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire.
  • Tungsten wire was composed of a total of 26 lines, and a total of 27 stainless steel plates were made.
  • Dust removal efficiency of 0.3 ⁇ m or less in diameter was measured using an electric dust collector including the prepared particle charging device.
  • the high voltage applied to the electric precipitator is fixed at 2.0kV, and the high voltage applied to the tungsten wire of the particle charging device is 0.35mA, 0.4mA, 0.45mA, 0.5mA, 0.6mA, 0.7mA as current. I did.
  • the high voltage electrode 200 is used to check whether fine dust that has passed through without first being collected from the top of the electrostatic precipitator (front of the conductive filter) is collected under the electrostatic precipitator (the rear of the conductive filter). The efficiency of removing fine dust was measured and evaluated using a device installed at the top and bottom of the electric dust collector and a device installed only at the top.
  • the filter media velocity of air passing through the particle charging device and the electric precipitator was fixed at 0.064m/s so that the air volume was fixed at 300CMH, and the efficiency of removing fine dust was measured and evaluated by [Equation 2].
  • N0* is the number concentration of particles with a size of 0.3 ⁇ m or less contained in the air flowing into the particle charging device
  • N1* is the number concentration of particles with a size of 0.3 ⁇ m or less in the air that has passed through the electrostatic precipitator 10. to be.
  • Table 11 shows the results of using high voltage electrodes installed on both the top and bottom of the electric dust collector, and Table 12 shows the results of using high voltage electrodes only on the top.
  • the electrostatic precipitator composed of a conductive filter first removes fine dust from the front part of the filter exposed to the direction in which air blows, and the fine dust that passes through the front part of the conductive filter that could not be removed first is 2 from the back of the filter.
  • the basic concept of an electric precipitator composed of a conductive filter developed through the present invention can be realized.
  • a conductive filter 100 coated with an aluminum nanostructure having a ventilation air rate of 297 cc/cm 2 /sec and a length of 251.5 mm in the width direction of the conductive filter 130 is formed with a bending width of 6 mm and a length of the partition wall 120.
  • the mountains and valleys were connected to each other at a position facing the air flow direction so as to be 70 mm, and bent so as to be continuously formed in a zigzag shape.
  • the direction in which the bending is continued is the longitudinal direction 300 of the conductive filter.
  • the high voltage electrode 200 is provided at a position in which the distance between the conductive filter partition wall 120 and the bent portion 110 is symmetrical to each other in a plurality of electrode arrangement spaces formed by the conductive filter partition wall 120 and the bent portion 110.
  • the plurality of high voltage electrodes 200 are provided to be parallel to each other.
  • the high voltage electrode 200 is a silver-plated conductive fiber cut into a certain width and coated 201 with a PET laminate film on both sides, and the length of the conductive filter in the width direction of the high voltage electrode is 250 mm, and the height in the barrier direction is 64 mm.
  • the length of the conductive fiber in the high voltage electrode was 233 mm and the height was 54 mm.
  • the high voltage electrode was placed in the center of the filter bent body and the bent body possible.
  • the electric dust collecting device was made so that the number of bent portions 110 and the number of high voltage electrodes 200 are composed of 84 at the top and 83 at the bottom.
  • the cross-sectional area of the filter was 0.128m 2 and the total area with all the bent filters unfolded was 2.958m 2 .
  • the two electric dust collectors with a width of 514 mm X 255.5 mm X 70 mm in height were 535 mm wide X 535 mm long X 105 mm high. It is configured to purify high air volume air by putting it in one filter frame and connecting it.
  • a particle charging device was further included at an upstream side in the air flow direction of the electrostatic precipitator at a predetermined distance from the electrostatic precipitator.
  • the particle charging device was composed of a tungsten wire and a stainless steel plate, and the stainless steel plate was positioned at an interval of 1 cm on each side around the tungsten wire.
  • Tungsten wire consisted of a total of 30 lines, and a total of 29 stainless steel plates were made.
  • the dust removal efficiency of 0.3 um and 0.5 um or less in diameter was measured using an electric dust collector including the prepared particle charging device.
  • the high voltage applied to the electric dust collector was fixed at 2.0 kV
  • the high voltage applied to the tungsten wire of the particle charging apparatus was fixed at 2.4 mA.
  • N0* is the number concentration of particles with a size of 0.3 ⁇ m or less contained in the air flowing into the particle charging device
  • N1* is the number concentration of particles with a size of 0.3 ⁇ m or less in the air that has passed through the electrostatic precipitator 10. to be.

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Abstract

La présente invention concerne un dispositif de collecte de poussière comprenant : un filtre conducteur qui collecte la poussière dans l'air et dans lequel des parties courbées, pliées à des intervalles de flexion et à des profondeurs de flexion prédéfinis, et des parois de séparation reliant les parties courbées forment une pluralité d'espaces d'agencement d'électrodes ; et des électrodes haute tension qui sont disposées dans la pluralité d'espaces d'agencement d'électrodes, respectivement, électriquement connectées à une source d'alimentation, et forment un champ électrique lorsque la tension provenant de la source d'alimentation est appliquée à celles-ci.
PCT/KR2020/007213 2019-06-04 2020-06-03 Dispositif électrique de collecte de poussière et son procédé de fabrication WO2020246802A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372965A (ja) * 1989-08-11 1991-03-28 Matsushita Electric Ind Co Ltd エアフィルタ
JPH05154407A (ja) * 1991-12-10 1993-06-22 Toshiba Corp 空気清浄器
KR950010963A (ko) * 1993-10-16 1995-05-15 이명진 대전 미립자 중성화 집진방법 및 집진장치
JP2006525113A (ja) * 2003-04-30 2006-11-09 ヌトソス、ミカエル 導電性のガス精製フィルターおよびフィルターアセンブリー
JP2017131875A (ja) * 2016-01-29 2017-08-03 パナソニックＩｐマネジメント株式会社 電気集塵装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372965A (ja) * 1989-08-11 1991-03-28 Matsushita Electric Ind Co Ltd エアフィルタ
JPH05154407A (ja) * 1991-12-10 1993-06-22 Toshiba Corp 空気清浄器
KR950010963A (ko) * 1993-10-16 1995-05-15 이명진 대전 미립자 중성화 집진방법 및 집진장치
JP2006525113A (ja) * 2003-04-30 2006-11-09 ヌトソス、ミカエル 導電性のガス精製フィルターおよびフィルターアセンブリー
JP2017131875A (ja) * 2016-01-29 2017-08-03 パナソニックＩｐマネジメント株式会社 電気集塵装置

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