EP0734773A3 - Method for continuous optimization of the operating condition of an electrofilter - Google Patents

Method for continuous optimization of the operating condition of an electrofilter Download PDF

Info

Publication number
EP0734773A3
EP0734773A3 EP96103433A EP96103433A EP0734773A3 EP 0734773 A3 EP0734773 A3 EP 0734773A3 EP 96103433 A EP96103433 A EP 96103433A EP 96103433 A EP96103433 A EP 96103433A EP 0734773 A3 EP0734773 A3 EP 0734773A3
Authority
EP
European Patent Office
Prior art keywords
operating
voltage
pulses
normal
successive
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP96103433A
Other languages
German (de)
French (fr)
Other versions
EP0734773B1 (en
EP0734773A2 (en
Inventor
Achim Dr. Deiwick
Frank Bock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock Prozessautomation GmbH
Original Assignee
Babcock Prozessautomation GmbH
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 Babcock Prozessautomation GmbH filed Critical Babcock Prozessautomation GmbH
Priority to SI9630411T priority Critical patent/SI0734773T1/en
Publication of EP0734773A2 publication Critical patent/EP0734773A2/en
Publication of EP0734773A3 publication Critical patent/EP0734773A3/en
Application granted granted Critical
Publication of EP0734773B1 publication Critical patent/EP0734773B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Abstract

Continually optimising the operating condition of an electrostatic filter comprises: (a) operating with a direct voltage with superimposed pules, derived by full-wave rectification of the mains voltage, the time spacing between successive pulses being variable by screening a selectable number of full mains waves; (b) operating with a constant number of pulses in the normal phase and subsequent test phase of each of successive operating periods; (c) measuring the residual voltage during the normal and test phases in each of successive cycles (1,2,3...,k,...) at a given limitation of the current or voltage and iteratively varying the limitation, depending on the residual voltage change from cycle, so that the residual voltage tends towards a max.; and (d) operating the test phase of each operating period with a number of pulses differing by 1 from that in the normal phase, measuring and comparing the mean voltage values in the normal and test phases and, depending on the difference, iteratively varying the number of pulses from operating period to operating period such that the mean voltage value tends towards a max..
EP96103433A 1995-03-30 1996-03-06 Method for continuous optimization of the operating condition of an electrofilter Expired - Lifetime EP0734773B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630411T SI0734773T1 (en) 1995-03-30 1996-03-06 Method for continuous optimization of the operating condition of an electrofilter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511604A DE19511604C2 (en) 1995-03-30 1995-03-30 Method for continuously optimizing the operating state of an electrostatic filter
DE19511604 1995-03-30

Publications (3)

Publication Number Publication Date
EP0734773A2 EP0734773A2 (en) 1996-10-02
EP0734773A3 true EP0734773A3 (en) 2000-02-02
EP0734773B1 EP0734773B1 (en) 2001-10-24

Family

ID=7758106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103433A Expired - Lifetime EP0734773B1 (en) 1995-03-30 1996-03-06 Method for continuous optimization of the operating condition of an electrofilter

Country Status (4)

Country Link
EP (1) EP0734773B1 (en)
AT (1) ATE207388T1 (en)
DE (2) DE19511604C2 (en)
SI (1) SI0734773T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108380391B (en) * 2018-02-11 2024-01-30 洁通科技（北京）有限公司 Ozone-free double-path four-voltage high-voltage electrostatic precipitator and control method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354860A (en) * 1979-12-11 1982-10-19 Siemens Aktiengesellschaft Method for determining the filter current limit of an electrostatic filter
US4626261A (en) * 1984-12-12 1986-12-02 F. L. Smidth & Co. A/S Method of controlling intermittent voltage supply to an electrostatic precipitator
US4648887A (en) * 1984-07-17 1987-03-10 Sumitomo Heavy Industries, Ltd. Method for controlling electrostatic precipitator
US4690694A (en) * 1985-07-20 1987-09-01 Metallgesellschaft Aktiengesellschaft Method of automatically controlling an electrostatic precipitator
US5217504A (en) * 1989-03-28 1993-06-08 Abb Flakt Aktiebolag Method for controlling the current pulse supply to an electrostatic precipitator
US5311420A (en) * 1992-07-17 1994-05-10 Environmental Elements Corp. Automatic back corona detection and protection system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501162A (en) * 1981-07-24 1983-07-21 トル−ス　ロドニイ　ジヨン How to detect and apply reverse corona in electrostatic precipitators
SE451675B (en) * 1983-10-05 1987-10-26 Flaekt Ab SET AND DEVICE FOR VARIABLE VOLTAGE PRESENTING ACTION BETWEEN ELECTROSTATIC SUBSTANCE DISPENSERS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354860A (en) * 1979-12-11 1982-10-19 Siemens Aktiengesellschaft Method for determining the filter current limit of an electrostatic filter
US4648887A (en) * 1984-07-17 1987-03-10 Sumitomo Heavy Industries, Ltd. Method for controlling electrostatic precipitator
US4626261A (en) * 1984-12-12 1986-12-02 F. L. Smidth & Co. A/S Method of controlling intermittent voltage supply to an electrostatic precipitator
US4690694A (en) * 1985-07-20 1987-09-01 Metallgesellschaft Aktiengesellschaft Method of automatically controlling an electrostatic precipitator
US5217504A (en) * 1989-03-28 1993-06-08 Abb Flakt Aktiebolag Method for controlling the current pulse supply to an electrostatic precipitator
US5311420A (en) * 1992-07-17 1994-05-10 Environmental Elements Corp. Automatic back corona detection and protection system

Also Published As

Publication number Publication date
SI0734773T1 (en) 2002-06-30
EP0734773B1 (en) 2001-10-24
DE59607969D1 (en) 2001-11-29
ATE207388T1 (en) 2001-11-15
EP0734773A2 (en) 1996-10-02
DE19511604A1 (en) 1996-10-02
DE19511604C2 (en) 1999-08-12

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