GB1332751A - Voltage control in electrostatic precipitators - Google Patents

Voltage control in electrostatic precipitators

Info

Publication number
GB1332751A
GB1332751A GB68771A GB68771A GB1332751A GB 1332751 A GB1332751 A GB 1332751A GB 68771 A GB68771 A GB 68771A GB 68771 A GB68771 A GB 68771A GB 1332751 A GB1332751 A GB 1332751A
Authority
GB
United Kingdom
Prior art keywords
voltage
flashover
kerr cell
electrodes
light
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.)
Expired
Application number
GB68771A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB1332751A publication Critical patent/GB1332751A/en
Expired legal-status Critical Current

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
    • 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1332751 Photo-electric detection systems METALLGESELLSCHAFT A G 6 Jan 1971 [13 Jan 1970] 687/71 Addition to 1071569 Heading G1A [Also in Division H2] A method of controlling the voltage applied between the electrodes 1, 2 of an electrostatic precipitator comprises deriving an optical signal at each flashover between the electrodes by a device 7 having a response time of not more than 10<SP>-3</SP> seconds and using the optical signals to control the applied high voltage to avoid a persistent breakdown between the electrodes. Since the optimum power supplied to the recipitator causes a fixed flashover rate this power may be controlled by measuring the flashover rate using the device 7 which, as shown, comprises a Kerr cell having polarizers 11. The electrode 2 is connected to a high voltage generator 4 and the Kerr cell is connected across the resistor 6 of a voltage divider 5, 6. When a flashover occurs in the precipitator the voltage across the Kerr cell is reduced thereby preventing the light from a source 8 from reaching a photo-detector 10 via a light guide 9. The photodetector is connected through an amplifier 12 to a voltage controller 13 for the generator 4. A variable resistor 5' or 6' may be connected to the Kerr cell which may be replaced by a semiconductor light omitting diode of gallium arsenide or gallium phosphide, the emitted light being infrared radiation.
GB68771A 1965-04-10 1971-01-06 Voltage control in electrostatic precipitators Expired GB1332751A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM64844A DE1276001B (en) 1965-04-10 1965-04-10 Procedure for voltage regulation of electrostatic dust collectors
DE19702001189 DE2001189A1 (en) 1965-04-10 1970-01-13 Voltage regulator for electrostatic dust precipitators

Publications (1)

Publication Number Publication Date
GB1332751A true GB1332751A (en) 1973-10-03

Family

ID=25758487

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15799/66A Expired GB1071569A (en) 1965-04-10 1966-04-07 Improvements in and relating to circuits and methods for controlling electrostatic dust precipitators
GB68771A Expired GB1332751A (en) 1965-04-10 1971-01-06 Voltage control in electrostatic precipitators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB15799/66A Expired GB1071569A (en) 1965-04-10 1966-04-07 Improvements in and relating to circuits and methods for controlling electrostatic dust precipitators

Country Status (6)

Country Link
US (1) US3488675A (en)
AT (1) AT306177B (en)
CS (1) CS157095B2 (en)
DE (2) DE1276001B (en)
GB (2) GB1071569A (en)
SE (1) SE312788B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466667A2 (en) * 2003-04-09 2004-10-13 Sharper Image Corporation Air transporter-conditioner with particulate detection
DE102011007470A1 (en) * 2011-04-15 2012-10-18 Aktiebolaget Skf cleaning device

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643405A (en) * 1969-03-08 1972-02-22 Siemens Ag Circuit arrangement for automatic control of the voltage of an electrical filter
US3648437A (en) * 1969-07-23 1972-03-14 Koppers Co Inc Automatic scr precipitator control
US3811056A (en) * 1971-12-06 1974-05-14 Nissan Motor Velocity sensor
GB1479033A (en) 1973-08-14 1977-07-06 Masuda S Electrostatic precipitating apparatus
FR2258598B1 (en) * 1974-01-22 1978-08-11 Equip Climatique Ste Europ
DE3040330A1 (en) * 1980-10-25 1982-06-03 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR REGULATING THE OPERATING VOLTAGE OF AN ELECTROSTATIC SEPARATOR
EP0097161B1 (en) * 1981-07-24 1987-03-18 TRUCE, Rodney John Detecting, measuring and applying back corona parameters on an electrostatic precipitator
US4439216A (en) * 1982-07-28 1984-03-27 Combustion Engineering, Inc. Electrostatic precipitator having apparatus for sensing electrostatic field strengths
US4624685A (en) * 1985-01-04 1986-11-25 Burns & McDonnell Engineering Co., Inc. Method and apparatus for optimizing power consumption in an electrostatic precipitator
US5679137A (en) * 1995-06-07 1997-10-21 Honeywell Inc. Optical dirty cell sensor for an electronic air cleaner
US5650668A (en) * 1995-06-23 1997-07-22 Lucent Technologies Inc. Low current voltage regulator circuit
DE19962665B4 (en) * 1999-12-23 2008-08-21 Siemens Ag Power supply for electrostatic precipitators
US20100313748A1 (en) * 2009-06-15 2010-12-16 Middle Atlantic Products, Inc. Method and system for smart air filter monitoring
CN103261676B (en) * 2010-12-14 2016-04-20 费德罗-莫格尔点火公司 There is the corona ignition device of asymmetric firing tip
CN113241957B (en) * 2021-04-20 2022-06-07 许昌学院 Intelligent high-voltage corona control system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE181893C (en) *
DE488943C (en) * 1926-12-07 1930-01-09 Metallgesellschaft Ag Device for indicating the presence or absence of high-voltage direct currents, especially in electrical gas cleaning systems
US2189614A (en) * 1938-05-06 1940-02-06 Westinghouse Electric & Mfg Co Ozone control for precipitators
CA463312A (en) * 1940-10-26 1950-02-21 J. Brown Myron Voltage-regulating equipment for precipitators or the like
DE892624C (en) * 1949-01-01 1953-10-08 Pintsch Electro G M B H Arrangement for the automatic regulation or maintenance of electrical voltages by means of a carbon pressure regulator
US2623608A (en) * 1950-06-19 1952-12-30 Research Corp System for energizing electrical precipitators
US2632522A (en) * 1950-10-28 1953-03-24 Westinghouse Electric Corp Electrostatic precipitator
GB705604A (en) * 1951-04-13 1954-03-17 Dieter Otto Heinrich Improvements relating to voltage control means, especially for electroprecipitators
GB701855A (en) * 1951-12-06 1954-01-06 Dieter Otto Heinrich Improvements relating to the electrical precipitation of dust of high electrical resistivity
US2742104A (en) * 1953-12-17 1956-04-17 Research Corp Automatic voltage control of electrostatic precipitator with saturable reactor
US2935155A (en) * 1954-07-09 1960-05-03 Joy Mfg Co Apparatus for controlling electrical precipitators
US2771150A (en) * 1954-07-22 1956-11-20 Apra Precipitator Corp Protective relay circuits
US2783388A (en) * 1954-08-24 1957-02-26 Research Corp Electrical precipitator voltage control
GB783922A (en) * 1954-08-24 1957-10-02 Research Corp Improvements in or relating to high voltage regulating systems for electrostatic precipitators
FR1130971A (en) * 1954-09-15 1957-02-14 Metallgesellschaft Ag Photocell controlling the operation of electric filters
US2943697A (en) * 1957-07-22 1960-07-05 Joy Mfg Co Automatic field strength control for precipitators
US2979158A (en) * 1958-10-17 1961-04-11 Gordon M Genge & Company Inc Electrostatic particle separating apparatus
US2961577A (en) * 1959-08-04 1960-11-22 Koppers Co Inc Electrostatic precipitators
US3114097A (en) * 1959-09-29 1963-12-10 Bell Telephone Labor Inc Controlled rectifier regulating system utilizing a linear relaxation trigger circuit
US3173772A (en) * 1962-02-09 1965-03-16 Buell Engineering Company Inc Apparatus for controlling an electrical precipitator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466667A2 (en) * 2003-04-09 2004-10-13 Sharper Image Corporation Air transporter-conditioner with particulate detection
EP1466667A3 (en) * 2003-04-09 2004-11-03 Sharper Image Corporation Air transporter-conditioner with particulate detection
CN1609524B (en) * 2003-04-09 2010-09-01 特塞拉公司 Air transporter-conditioner with particulate detection
DE102011007470A1 (en) * 2011-04-15 2012-10-18 Aktiebolaget Skf cleaning device

Also Published As

Publication number Publication date
AT306177B (en) 1973-03-26
GB1071569A (en) 1967-06-07
US3488675A (en) 1970-01-06
DE1276001B (en) 1968-08-29
CS157095B2 (en) 1974-08-23
DE2001189A1 (en) 1971-07-22
SE312788B (en) 1969-07-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees