WO1994020218A1 - Method of controlling the supply of conditioning agent to an electrostatic precipitator - Google Patents

Method of controlling the supply of conditioning agent to an electrostatic precipitator Download PDF

Info

Publication number
WO1994020218A1
WO1994020218A1 PCT/SE1994/000158 SE9400158W WO9420218A1 WO 1994020218 A1 WO1994020218 A1 WO 1994020218A1 SE 9400158 W SE9400158 W SE 9400158W WO 9420218 A1 WO9420218 A1 WO 9420218A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
pulse
voltage
merit
charge
Prior art date
Application number
PCT/SE1994/000158
Other languages
English (en)
French (fr)
Inventor
Hans Jacobsson
Kjell Porle
Original Assignee
ABB Fläkt AB
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
Priority claimed from SE9300685A external-priority patent/SE9300685D0/sv
Application filed by ABB Fläkt AB filed Critical ABB Fläkt AB
Priority to DE4491316T priority Critical patent/DE4491316T1/de
Priority to US08/530,243 priority patent/US5707422A/en
Priority to DE4491316A priority patent/DE4491316C2/de
Priority to AU62236/94A priority patent/AU687788B2/en
Priority to JP51987394A priority patent/JP3447294B2/ja
Priority to TW083105016A priority patent/TW252261B/zh
Publication of WO1994020218A1 publication Critical patent/WO1994020218A1/en

Links

Classifications

    • 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
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor
    • 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
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/013—Conditioning by chemical additives, e.g. with SO3

Definitions

  • the present invention relates to a method for use in an electrostatic precipitator unit comprising discharge elec ⁇ trodes and collecting electrodes between which a varying high voltage is maintained by means of a pulsating direct current supplied thereto, of controlling, with a view to cleaning an incoming dust-laden gas, the supply of condi- tioning agent to the incoming contaminated gas upstream of the precipitator unit.
  • the frequency, the pulse charge and/or the pulse length of the pulsating direct current are varied so as to obtain a plurality of frequency- charge-length combinations.
  • a figure of merit is measured or calculated for each combination.
  • the figures of merit are used to establish an optimal combination.
  • the supply of conditioning agent is controlled in dependence on the pulse frequency for the established optimal combination.
  • the method is a powerful aid in minimising operational costs.
  • the cost of conditioning has a most significant impact on the overall economy of the plant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrostatic Separation (AREA)
  • Air Conditioning Control Device (AREA)
PCT/SE1994/000158 1993-03-01 1994-02-25 Method of controlling the supply of conditioning agent to an electrostatic precipitator WO1994020218A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE4491316T DE4491316T1 (de) 1993-03-01 1994-02-25 Verfahren zum Steuern der Zufuhr eines Konditioniermittels zu einem elektrostatischen Abscheider
US08/530,243 US5707422A (en) 1993-03-01 1994-02-25 Method of controlling the supply of conditioning agent to an electrostatic precipitator
DE4491316A DE4491316C2 (de) 1993-03-01 1994-02-25 Verfahren zum Steuern der Zufuhr eines Konditioniermittels zu einem elektrostatischen Abscheider
AU62236/94A AU687788B2 (en) 1993-03-01 1994-02-25 Method of controlling the supply of conditioning agent to anelectrostatic precipitator
JP51987394A JP3447294B2 (ja) 1993-03-01 1994-02-25 静電沈降分離装置に対する調節剤の供給の制御方法
TW083105016A TW252261B (sv) 1993-08-04 1994-06-01

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9300685-6 1993-03-01
SE9300685A SE9300685D0 (sv) 1993-03-01 1993-03-01 Saett att reglera tillfoersel av konditioneringsmedel till elektrostatisk stoftavskiljare
SE9302557A SE501119C2 (sv) 1993-03-01 1993-08-04 Sätt att styra tillförsel av konditioneringsmedel till en elektrostatisk stoftavskiljare
SE9302557-5 1993-08-04

Publications (1)

Publication Number Publication Date
WO1994020218A1 true WO1994020218A1 (en) 1994-09-15

Family

ID=26661672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000158 WO1994020218A1 (en) 1993-03-01 1994-02-25 Method of controlling the supply of conditioning agent to an electrostatic precipitator

Country Status (6)

Country Link
US (1) US5707422A (sv)
JP (1) JP3447294B2 (sv)
AU (1) AU687788B2 (sv)
DE (2) DE4491316T1 (sv)
SE (1) SE501119C2 (sv)
WO (1) WO1994020218A1 (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042444A1 (en) * 1997-03-26 1998-10-01 ABB Fläkt Aktiebolag Method to control current supply to an electrostatic precipitator

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9802177D0 (sv) * 1998-06-18 1998-06-18 Kraftelektronik Ab Metod och anordning för alstring av spänningspulser till en elektrostatisk stoftavskiljare
CN1310645A (zh) * 1998-09-18 2001-08-29 Fls公司 操作静电集尘器的方法
US6504308B1 (en) * 1998-10-16 2003-01-07 Kronos Air Technologies, Inc. Electrostatic fluid accelerator
US6224653B1 (en) * 1998-12-29 2001-05-01 Pulsatron Technology Corporation Electrostatic method and means for removing contaminants from gases
US6267802B1 (en) * 1999-06-17 2001-07-31 Ada Environmental Solutions, Llc Composition apparatus and method for flue gas conditioning
DE10029648C1 (de) 2000-06-15 2002-02-07 Goldschmidt Ag Th Blockcopolymere Phosphorsäureester, deren Salze und deren Verwendung als Emulgatoren und Dispergiermittel
US20030143501A1 (en) * 2002-01-31 2003-07-31 Ferrigan James J. Method and apparatus for sulfur trioxide flue gas conditioning
US6727657B2 (en) * 2002-07-03 2004-04-27 Kronos Advanced Technologies, Inc. Electrostatic fluid accelerator for and a method of controlling fluid flow
US6919698B2 (en) * 2003-01-28 2005-07-19 Kronos Advanced Technologies, Inc. Electrostatic fluid accelerator for and method of controlling a fluid flow
US6937455B2 (en) * 2002-07-03 2005-08-30 Kronos Advanced Technologies, Inc. Spark management method and device
US7122070B1 (en) * 2002-06-21 2006-10-17 Kronos Advanced Technologies, Inc. Method of and apparatus for electrostatic fluid acceleration control of a fluid flow
US7157704B2 (en) * 2003-12-02 2007-01-02 Kronos Advanced Technologies, Inc. Corona discharge electrode and method of operating the same
US7150780B2 (en) * 2004-01-08 2006-12-19 Kronos Advanced Technology, Inc. Electrostatic air cleaning device
US6797035B2 (en) * 2002-08-30 2004-09-28 Ada Environmental Solutions, Llc Oxidizing additives for control of particulate emissions
JP3775417B2 (ja) * 2004-02-09 2006-05-17 ダイキン工業株式会社 放電装置及び空気浄化装置
US7081152B2 (en) * 2004-02-18 2006-07-25 Electric Power Research Institute Incorporated ESP performance optimization control
AT500959B1 (de) * 2004-11-09 2007-05-15 Carl M Dr Fleck Verfahren und filteranordnung zum abscheiden von russpartikeln
WO2006107390A2 (en) * 2005-04-04 2006-10-12 Kronos Advanced Technologies, Inc. An electrostatic fluid accelerator for and method of controlling a fluid flow
US7404847B2 (en) * 2005-07-28 2008-07-29 Hess Don H Apparatus and method for enhancing filtration
US7175695B1 (en) * 2005-07-28 2007-02-13 Hess Don H Apparatus and method for enhancing filtration
US20090022340A1 (en) * 2006-04-25 2009-01-22 Kronos Advanced Technologies, Inc. Method of Acoustic Wave Generation
US7655068B2 (en) * 2007-06-14 2010-02-02 General Electric Company Method and systems to facilitate improving electrostatic precipitator performance
FR2927550B1 (fr) * 2008-02-19 2011-04-22 Commissariat Energie Atomique Dispositif de filtration electrostatique au moyen de sites emissifs optimises.
KR100954878B1 (ko) * 2009-03-10 2010-04-28 넥슨 주식회사 실내 공기의 이온 및 오존 최적화 포화방법
EP2397227A1 (en) * 2010-06-18 2011-12-21 Alstom Technology Ltd Method to control the line distortion of a system of power supplies of electrostatic precipitators
US9028588B2 (en) 2010-09-15 2015-05-12 Donald H. Hess Particle guide collector system and associated method
CN102500468B (zh) * 2011-10-18 2015-09-23 艾尼科环保技术(安徽)有限公司 一种静电除尘器用高压中频电源及其供电方法
EP2834012A1 (en) * 2012-04-04 2015-02-11 ALSTOM Technology Ltd Flue gas conditioning system and method
US9468935B2 (en) 2012-08-31 2016-10-18 Donald H. Hess System for filtering airborne particles
PL3154702T3 (pl) * 2014-06-13 2021-12-13 Flsmidth A/S Sterowanie zasilaczem wysokonapięciowym elektrofiltra

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311491A (en) * 1980-08-18 1982-01-19 Research Cottrell, Inc. Electrostatic precipitator control for high resistivity particulate
EP0184922A2 (en) * 1984-12-12 1986-06-18 F.L. Smidth & Co. A/S A method of controlling intermittant voltage supply to an electrostatic precipitator
US4987839A (en) * 1990-05-14 1991-01-29 Wahlco, Inc. Removal of particulate matter from combustion gas streams
SE468628B (sv) * 1991-11-26 1993-02-22 Flaekt Ab Saett att reglera stroempulsmatningen till en elektrostatisk stoftavskiljare

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909825A (en) * 1928-08-01 1933-05-16 Int Precipitation Co Electrical gas purification
US3689213A (en) * 1970-02-19 1972-09-05 Salvatore A Guerrieri Process for treating flue gases
US3665676A (en) * 1970-11-12 1972-05-30 Koppers Co Inc Method of and apparatus for chemically conditioning a particle-laden gas stream
US3993429A (en) * 1974-10-29 1976-11-23 Wahlco, Inc. Gas conditioning means
US4052177A (en) * 1975-03-03 1977-10-04 Nea-Lindberg A/S Electrostatic precipitator arrangements
US4267502A (en) * 1979-05-23 1981-05-12 Envirotech Corporation Precipitator voltage control system
US4410849A (en) * 1981-03-23 1983-10-18 Mitsubishi Jukogyo Kabushiki Kaisha Electric dust collecting apparatus having controlled intermittent high voltage supply
US4770674B2 (en) * 1984-08-06 1993-01-19 Gas conditioning for an electrostatic precipitator
DE3430016A1 (de) * 1984-08-16 1986-03-20 Metallgesellschaft Ag, 6000 Frankfurt Optimierung der Rauchgaskonditionierung
GB8431293D0 (en) * 1984-12-12 1985-01-23 Smidth & Co As F L Controlling pulse frequency of electrostatic precipitator
US4779207A (en) * 1987-01-06 1988-10-18 The Chemithon Corporation SO3 flue gas conditioning system
SE463353B (sv) * 1989-03-28 1990-11-12 Flaekt Ab Saett att reglera stroempulsmatning till en elektrostatisk stoftavskiljare
US5288303A (en) * 1992-04-07 1994-02-22 Wilhelm Environmental Technologies, Inc. Flue gas conditioning system
US5311420A (en) * 1992-07-17 1994-05-10 Environmental Elements Corp. Automatic back corona detection and protection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311491A (en) * 1980-08-18 1982-01-19 Research Cottrell, Inc. Electrostatic precipitator control for high resistivity particulate
EP0184922A2 (en) * 1984-12-12 1986-06-18 F.L. Smidth & Co. A/S A method of controlling intermittant voltage supply to an electrostatic precipitator
US4987839A (en) * 1990-05-14 1991-01-29 Wahlco, Inc. Removal of particulate matter from combustion gas streams
SE468628B (sv) * 1991-11-26 1993-02-22 Flaekt Ab Saett att reglera stroempulsmatningen till en elektrostatisk stoftavskiljare

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042444A1 (en) * 1997-03-26 1998-10-01 ABB Fläkt Aktiebolag Method to control current supply to an electrostatic precipitator

Also Published As

Publication number Publication date
SE9302557L (sv) 1994-09-02
AU6223694A (en) 1994-09-26
JP3447294B2 (ja) 2003-09-16
JPH08507959A (ja) 1996-08-27
SE501119C2 (sv) 1994-11-21
AU687788B2 (en) 1998-03-05
DE4491316C2 (de) 2003-02-13
US5707422A (en) 1998-01-13
DE4491316T1 (de) 1996-04-25
SE9302557D0 (sv) 1993-08-04

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