EP0867225A3 - Method and apparatus for controlling electric dust collector - Google Patents

Method and apparatus for controlling electric dust collector Download PDF

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Publication number
EP0867225A3
EP0867225A3 EP98301634A EP98301634A EP0867225A3 EP 0867225 A3 EP0867225 A3 EP 0867225A3 EP 98301634 A EP98301634 A EP 98301634A EP 98301634 A EP98301634 A EP 98301634A EP 0867225 A3 EP0867225 A3 EP 0867225A3
Authority
EP
European Patent Office
Prior art keywords
dust collector
electric dust
judgment
abnormality
predetermined
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.)
Withdrawn
Application number
EP98301634A
Other languages
German (de)
French (fr)
Other versions
EP0867225A2 (en
Inventor
Yoshihide c/o Konan Factory Gunji
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.)
Bosch Corp
Original Assignee
Zexel 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 Zexel Corp filed Critical Zexel Corp
Publication of EP0867225A2 publication Critical patent/EP0867225A2/en
Publication of EP0867225A3 publication Critical patent/EP0867225A3/en
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)

Abstract

When it is judged that an abnormality occurs to an electric dust collector (1) in step S2, it is then judged whether the abnormality intermittently occurs a predetermined plurality of times or more within a predetermined second measuring time in step S3. If the judgment in step S3 is affirmative, the supply of high voltage electric current to one pair of opposing electrodes ofthe electric dust collector (1) is temporarily stopped in step S5, and after the passage of a first standby time, the supply of high voltage electric current to the one pair of opposing electrodes is resumed in step S7. If the judgment in step S2 is negative, it is judged whether or not the abnormality of the electric dust collector (1) is continued during a predetermined first measuring time in step S3. If the judgment in step S3 is affirmative, an abnormal time procedure is carried out with respect to the electric dust collector 1 in step S4.
EP98301634A 1997-03-24 1998-03-05 Method and apparatus for controlling electric dust collector Withdrawn EP0867225A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP08877597A JP3210595B2 (en) 1997-03-24 1997-03-24 Electric dust collector control device
JP8877597 1997-03-24
JP88775/97 1997-03-24

Publications (2)

Publication Number Publication Date
EP0867225A2 EP0867225A2 (en) 1998-09-30
EP0867225A3 true EP0867225A3 (en) 2000-12-20

Family

ID=13952239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98301634A Withdrawn EP0867225A3 (en) 1997-03-24 1998-03-05 Method and apparatus for controlling electric dust collector

Country Status (2)

Country Link
EP (1) EP0867225A3 (en)
JP (1) JP3210595B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018062865A (en) * 2016-10-11 2018-04-19 トヨタ紡織株式会社 Control device for oil separator
JP6980259B2 (en) * 2017-09-25 2021-12-15 下西技研工業株式会社 Hinge and hinge monitoring method
JP7283721B2 (en) 2017-09-25 2023-05-30 下西技研工業株式会社 Hinge and how to monitor the hinge
JP7018785B2 (en) * 2018-02-27 2022-02-14 三菱電機株式会社 Air cleaner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772853A (en) * 1970-09-24 1973-11-20 Westinghouse Brake & Signal Automatic voltage control apparatus for electrostatic precipitators
JPS58133849A (en) * 1982-02-04 1983-08-09 Sumitomo Heavy Ind Ltd Detector for abnormal state of electrical dust precipitator
JPH03254846A (en) * 1990-03-01 1991-11-13 Daikin Ind Ltd Abnormality detection circuit for electric dust precipitator
JPH03275157A (en) * 1990-03-22 1991-12-05 Daikin Ind Ltd Abnormality detecting circuit for electrostatic precipitator
EP0576069A1 (en) * 1992-06-24 1993-12-29 Metallgesellschaft Ag Method for bringing the voltage UF of an electrostatic separator to the discharge limit
DE19511442C1 (en) * 1995-03-30 1996-03-07 Babcock Anlagen Gmbh Electrostatic separator operating method for removing dust from flue gases

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772853A (en) * 1970-09-24 1973-11-20 Westinghouse Brake & Signal Automatic voltage control apparatus for electrostatic precipitators
JPS58133849A (en) * 1982-02-04 1983-08-09 Sumitomo Heavy Ind Ltd Detector for abnormal state of electrical dust precipitator
JPH03254846A (en) * 1990-03-01 1991-11-13 Daikin Ind Ltd Abnormality detection circuit for electric dust precipitator
JPH03275157A (en) * 1990-03-22 1991-12-05 Daikin Ind Ltd Abnormality detecting circuit for electrostatic precipitator
EP0576069A1 (en) * 1992-06-24 1993-12-29 Metallgesellschaft Ag Method for bringing the voltage UF of an electrostatic separator to the discharge limit
DE19511442C1 (en) * 1995-03-30 1996-03-07 Babcock Anlagen Gmbh Electrostatic separator operating method for removing dust from flue gases

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 54 (C - 909) 12 February 1992 (1992-02-12) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 86 (C - 916) 3 March 1992 (1992-03-03) *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 248 (C - 193) 4 November 1983 (1983-11-04) *

Also Published As

Publication number Publication date
JP3210595B2 (en) 2001-09-17
EP0867225A2 (en) 1998-09-30
JPH10263435A (en) 1998-10-06

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