WO2014119952A1 - Procédé de conception de système de filtration de poussière fine pour grande installation électrique souterraine par le biais d'un appareil de précipitation électrostatique à tension induite - Google Patents

Procédé de conception de système de filtration de poussière fine pour grande installation électrique souterraine par le biais d'un appareil de précipitation électrostatique à tension induite Download PDF

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Publication number
WO2014119952A1
WO2014119952A1 PCT/KR2014/000895 KR2014000895W WO2014119952A1 WO 2014119952 A1 WO2014119952 A1 WO 2014119952A1 KR 2014000895 W KR2014000895 W KR 2014000895W WO 2014119952 A1 WO2014119952 A1 WO 2014119952A1
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WO
WIPO (PCT)
Prior art keywords
precipitator
fine dust
induced voltage
precipitating
design method
Prior art date
Application number
PCT/KR2014/000895
Other languages
English (en)
Inventor
Seung Whan Lee
Original Assignee
Royal Industrial Tech Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Royal Industrial Tech Corp. filed Critical Royal Industrial Tech Corp.
Priority to CN201480000076.2A priority Critical patent/CN104093491A/zh
Publication of WO2014119952A1 publication Critical patent/WO2014119952A1/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
    • B03C3/34—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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
    • 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
    • B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
    • 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
    • B03C3/41—Ionising-electrodes
    • 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
    • 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
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/78—Cleaning the electrodes by washing
    • 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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode has multiple serrated ends or parts

Definitions

  • the present invention relates to a design method of a filtering system which supplies outer air into large underground facilities, more particularly relates to a design method of a high capacity electric filtering system using an induced voltage electrostatic precipitating apparatus preventing fine dust inflow.
  • transportation related underground facilities such as a subway, a tunnel, an underground passage and a large underground parking lot have been developed and large public underground facilities have been developed.
  • Density of fine dust and carbon dioxide is very high in the large underground facility such as a subway station or an underground shopping mall with heavy floating population, and the air in the underground facility is always polluted by harmful substance such as formaldehyde and radon in the air. In addition, the fine dust is accumulated in the underground facilities.
  • the density of fine dust in the underground facility may be more elevated.
  • a conventional airshaft and a filtering device are not sufficient to ventilate the large underground facility because the conventional airshaft is small and the filtering device disturbs air flow.
  • a large quantity of outer air should be flowed into the large underground facility, however, there is limitation to install many airshafts for supplying sufficient air into an extra-large underground facility, and the filtering device has a limited capacity because the filtering device acts as resistance to air flow.
  • Embodiments of inventive concept provide a design method for using an induced voltage electrostatic dust precipitating apparatus to a large underground facility.
  • Embodiments of inventive concept also provide a design method of electric fine dust filtering system for a large underground facility.
  • the electric fine dust filtering system is capable of supplying sufficient outer air after removing fine dust into the large underground facility and has relatively high efficiency by reducing resistance of air flow.
  • Embodiments of inventive concept provide a design method of an electrical fine dust filtering system for a large underground facility using an induced voltage electrostatic precipitating apparatus to supply outer air into the large underground facility after filtering the outer air.
  • the electrical fine dust filtering system for a large underground facility using an induced voltage electrostatic precipitating apparatus may include an airshaft providing an air flow path and a filtering apparatus having a precipitator and a controller.
  • the design method may include forming the airshaft of a pipe structural concrete construct which provides a flow path to supply outer air into the large underground facility.
  • the concrete construct may include a horizontal section having a vertical wall with a shutter door.
  • the design method may include forming the filtering apparatus having the precipitator and the controller of an induced voltage electrostatic precipitating apparatus which charges and collects the fine dust by induced voltage.
  • the precipitator is installed behind the vertical wall and the controller is installed at an exterior site adjacent to the concrete construction having the precipitator.
  • the filtering apparatus may include a carbon filter wall adsorbing ozone generated at the precipitator.
  • the carbon filter wall is separated from the precipitator and installed behind the precipitator.
  • the carbon filter wall may be formed of a vertical wall having a cross-section.
  • the cross-section may be jagged to enlarge contact area with air.
  • the precipitator may be an induced voltage precipitator having a multi cross fin ionizer, a precipitating electrode plate and a precipitating plate.
  • the multi cross fin ionizer may have at least one protrusion discharge electrode having predetermined length and a plurality of side protrusions at both sides of the protrusion discharge electrode.
  • the protrusion discharge electrode may be connected to a high voltage source and having a plurality of protrusions along the longitudinal direction to charge the fine dust by corona discharge, and the side protrusions may be formed at both sides of the discharge electrode along longitudinal direction to generate corona discharge.
  • the precipitating electrode plate may include electrically grounded parallel plates behind the multi cross fin ionizer to adsorb charged fine dust, and the precipitating plate may have an induced voltage plate installed between the precipitating electrode plates and in parallel with the multi cross fin ionizer to generate voltage induced by the multi cross fin ionizer without electric connection.
  • the precipitator may include a cleaning device spraying a high pressure cleaning agent and a high pressure air to clean the multi cross fin ionizer and the precipitating plate.
  • the controller may be installed in a control room which is a separated space from the airshaft.
  • the high capacity induced voltage electrostatic precipitator may be used for large underground facilities and a ventilating problem of the large underground facility may be solved, particularly the problem of fine dust can be solved.
  • the efficiency of removing fine dust can be improved while reducing the resistance of the air inflow.
  • FIG. 1 is a schematic view illustrating a design method of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept;
  • FIG. 2 is a view illustrating a filtering system of an electrical fine dust filtering system for large underground facilities using a induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept;
  • FIG. 3 is a view illustrating a carbon filter wall of an electrical fine dust filtering system for large underground facilities using a induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept;
  • FIG. 4 is a view illustrating a precipitator of an electrical fine dust filtering system for large underground facilities using a induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept.
  • FIG. 5 is a view illustrating a multi cross fin ionizer of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitating appraratus according to an embodiment of the inventive concept.
  • FIG. 1 is a schematic view illustrating a design method of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept.
  • the inventive concept is a design method of an electrical fine dust filtering system 1 which includes an airshaft 10 for providing an air path and a filtering apparatus 20 having a precipitator 210 and a controller 220 to purify and inflow outer air to a large underground facility.
  • the airshaft 10 may be a construct attached to the large underground facility and a concrete construct with pipe structure providing a path through which outer air flows into the large underground facility.
  • the airshaft 10 may be constructed on or under the ground to function as an air path connecting an exterior and the large underground facility.
  • the airshaft 10 may have a horizontal section 110 and a vertical wall 120 on the horizontal section 110.
  • the vertical wall 120 may have a shutter door 122.
  • the horizontal section 110 of the airshaft 10 is a flat region.
  • the horizontal section 110 may be separated by the vertical wall 120 such that a fore part is an inflow region and a latter part is an exhaust region on the basis of an air flow direction.
  • the inflow region and the exhaust region may be connected or separated by opening and shutting of the shutter door 122.
  • outer air may supply to the large underground facility after removing fine dust and bed smell by the filtering system 20 which is located at the exhaust region.
  • the outer air may flow into the exhaust region through the inflow region of the airshaft 10.
  • the inflow region and the exhaust region is separated such that the outer air can reach the inflow region but does not reach the exhaust region thereby the outer air can be prevented from flowing into the large underground facility.
  • This function may be useful to exclude outer air for protecting the large underground facility.
  • the shutter door 122 may be operated by hand or automatically operated by control signals of the controller.
  • the width and height of the airshaft 10 with the vertical wall 120 may be at least 5 to inflow a lot of air and supply enough air to the large underground facility.
  • the vertical wall 120 with the shutter door 122 may be formed at the horizontal section 110 of the airshaft of a concrete construct to divide the inflow region and the exhaust region, and the filtering apparatus 20 is located at the exhaust region to remove fine dust and bed smell.
  • FIG. 2 is a view illustrating a filtering system of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept.
  • the filtering apparatus 20 having the precipitator and controller may be an induced voltage electrostatic precipitating apparatus 20-1 which charges fine dust by induced voltage and collects the charged fine dust.
  • the precipitator 210 may be installed at the exhaust region.
  • the controller 220 of the induced voltage electrostatic precipitating apparatus 20-1 may be installed at an exterior region adjacent to the airshaft 10 of a concrete construct having the precipitator 210 as shown in FIG. 2.
  • the controller 220 may be installed in a control room 220-A which is isolated to the airshaft 10.
  • the induced voltage electrostatic precipitating apparatus 20-1 as the filtering apparatus 20 may further include a carbon filter wall 230 for adsorbing ozone generated at the precipitator.
  • the carbon filter wall 230 may be formed behind the precipitator 210.
  • the carbon filter wall 230 and the precipitator may be spaced out.
  • the carbon filter wall 230 adsorbs ozone generated at the precipitator 210 such that ozone does not flow into the large underground facility.
  • FIG. 3 is a view illustrating a carbon filter wall of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitator according to an embodiment of the inventive concept.
  • the carbon filter wall 230 may be formed of vertical wall shape across the exhaust region.
  • the carbon filter wall 230 may have a jagged cross-section to enlarge area contacting with air.
  • the carbon filter wall as shown in FIG. 3 may reduce inflow resistance of air and increase filtering capacity and efficiency.
  • the carbon filter wall 230 of the inventive concept may be formed of conventional carbon materials and may not be restricted within a specific material or shape.
  • FIG. 4 is a view illustrating a precipitator of an electrical fine dust filtering system for large underground facilities using an induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept.
  • the precipitator 210 may have a precipitating device 212 and a cleaning device 214.
  • the precipitating device 212 may be formed of a plurality of precipitating blocks 210B and the cleaning device 214 may clean the precipitating device 212 and may spray cleaning agent and air.
  • the cleaning device 214 may have a cleaning line spraying the cleaning agent and a drying line spraying air.
  • the cleaning line may be a horizontal line moving up and down and have a plurality of spray nozzles toward the multi cross fin ionizer 210B-1 and the precipitator 210B-2 to spray high pressure cleaning agent at the multi cross fin ionizer 210B-1 and the precipitator 210B-2 thereby removing adsorbed fine dust.
  • the cleaning agent may be supplied to the cleaning line from a cleaning agent tank.
  • the drying line may be a horizontal line moving up and down and have a plurality of spray nozzles toward the multi cross fin ionizer 210B-1 and the precipitator 210B-2 to spray air at the multi cross fin ionizer 210B-1 and the precipitator 210B-2 thereby drying the multi cross fin ionizer 210B-1 and the precipitator 210B-2.
  • the air may be supplied to the drying line from an air compressor of a high pressure air tank.
  • the cleaning agent tank, the air compressor and/or the high pressure air tank may be installed in the control room 220-A
  • the precipitating block 210-B may be formed of the plurality of the multi cross fin ionizers 210B-1 and precipitating plates.
  • FIG. 5 is a view illustrating a multi cross fin ionizer of an electrical fine dust filtering system for large underground facilities using a induced voltage electrostatic precipitating apparatus according to an embodiment of the inventive concept.
  • the multi cross fin ionizer may be connected with high voltage source to charge fine dust by corona discharge.
  • the multi cross fin ionizer may have at least one protrusion discharge electrode and a plurality of side protrusions 210B-4.
  • the protrusion discharge electrode 210B-3 may have predetermined length and may be saw shape with a plurality of protrusions 210B3 along longitudinal direction, and the side protrusions 210B-4 may be formed at both sides of protrusion discharge electrode along the longitudinal direction of the discharge electrode.
  • the precipitator 210B-2 may be located behind the multi cross fin ionizer 210B-1 and have a precipitating electrode and a plate shaped induced voltage plate.
  • the precipitating electrode may be parallel plates to adsorb charged fine particles and the induced voltage plate may be installed in parallel with the multi cross fin ionizer 210B-1 between the precipitating electrodes to generate induced voltage without electric interconnection.

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  • Electrostatic Separation (AREA)

Abstract

L'invention concerne un procédé de conception d'un système électrique de filtration de poussière fine pour une grande installation souterraine par le biais d'un appareil de précipitation électrostatique à tension induite, le système électrique de filtration de poussière fine a un puits d'aération fournissant une trajectoire d'écoulement d'air et un appareil de filtration ayant un précipitateur et un dispositif de commande pour alimenter l'air extérieur dans une grande installation souterraine après le filtrage de l'air extérieur, le puits d'aération est formé par une construction de béton de structure à tuyaux qui fournit une trajectoire d'écoulement pour fournir de l'air extérieur dans la grande installation souterraine. La construction de béton comprend une section horizontale ayant une paroi verticale avec une porte à volet. L'appareil de filtration ayant le précipitateur et le dispositif de commande est formé par un appareil de précipitation électrostatique à tension induite qui charge et collecte la poussière fine par tension induite. Le précipitateur est installé derrière la paroi verticale et le dispositif de commande est installé au niveau d'un site extérieur adjacent à la construction de béton ayant le précipitateur.
PCT/KR2014/000895 2013-02-04 2014-02-03 Procédé de conception de système de filtration de poussière fine pour grande installation électrique souterraine par le biais d'un appareil de précipitation électrostatique à tension induite WO2014119952A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480000076.2A CN104093491A (zh) 2013-02-04 2014-02-03 使用感应电压静电集尘装置的用于大型地下电气设备的微尘过滤系统的设计方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0012567 2013-02-04
KR1020130012567A KR20140100001A (ko) 2013-02-04 2013-02-04 유도 전압 전기 집진 장치를 이용한 대형 지하 시설의 미세먼지 전기 필터링 시스템 설계 방법

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WO2014119952A1 true WO2014119952A1 (fr) 2014-08-07

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PCT/KR2014/000895 WO2014119952A1 (fr) 2013-02-04 2014-02-03 Procédé de conception de système de filtration de poussière fine pour grande installation électrique souterraine par le biais d'un appareil de précipitation électrostatique à tension induite

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KR (1) KR20140100001A (fr)
CN (1) CN104093491A (fr)
WO (1) WO2014119952A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN113275234A (zh) * 2021-05-21 2021-08-20 永州市冷水滩区五谷香农产品加工有限责任公司 一种新型大米清筛装置

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KR101508661B1 (ko) * 2014-09-26 2015-04-08 주식회사 리트코 차량용 터널 출구 설치형 터널 공기 정화 시스템
KR101533730B1 (ko) * 2014-09-26 2015-07-06 (주)평화엔지니어링 차량용 터널 출구 설치형 흡기 구조물
CN104759184A (zh) * 2015-03-20 2015-07-08 东华大学 一种隧道或地铁用空气净化综合试验装置

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JPH05248198A (ja) * 1992-03-06 1993-09-24 Kumagai Gumi Co Ltd トンネル等に於ける空気清浄方法
JP2003260383A (ja) * 2002-03-13 2003-09-16 Matsushita Ecology Systems Co Ltd 電気集塵システム
JP2005270802A (ja) * 2004-03-24 2005-10-06 Ohbayashi Corp 空気浄化システム、空気浄化システムを有してなる構造
KR20110123542A (ko) * 2010-05-07 2011-11-15 주식회사 리트코 멀티크로스핀 이오나이저를 이용한 유도전압 전기집진장치
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113275234A (zh) * 2021-05-21 2021-08-20 永州市冷水滩区五谷香农产品加工有限责任公司 一种新型大米清筛装置

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KR20140100001A (ko) 2014-08-14

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