US3755611A - Device for passing a conductor through the cover of an electrical precipitation apparatus - Google Patents

Device for passing a conductor through the cover of an electrical precipitation apparatus Download PDF

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Publication number
US3755611A
US3755611A US00278569A US3755611DA US3755611A US 3755611 A US3755611 A US 3755611A US 00278569 A US00278569 A US 00278569A US 3755611D A US3755611D A US 3755611DA US 3755611 A US3755611 A US 3755611A
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insulator
conductor
insulating cylinder
precipitation apparatus
porous
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US00278569A
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R Queck
H Werner
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Knapsack AG
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Knapsack AG
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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
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/70—Applications of electricity supply techniques insulating in electric separators

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  • ABSTRACT Improved lead-in device passing a conductor through the cover of an electrical precipitation apparatus down
  • the improved device is character- PP 2731569 ized in that a porous insulator is used as the insulator [30] and a gas-tight insulating cylinder concentrically sur- Fords Applicamn Pmmty Data rounds the porous insulator.
  • the device is further fitted Aug. 9, 1971 Germany................... P 21 39 824.3
  • US. Pat. No. 3,595,983 describes a device for passing a conductor through the cover of an electrical precipitation apparatus down to its electrode system, the conductor being concentrically surrounded by a duct arranged to run through the cover of the electrical precipitation apparatus to the interior of the said apparatus, wherein the conductor is surrounded near its supper end by an insulator; the said insulator being positioned above the cover of the said apparatus so as to be radially spaced from the conductor, wherein an insulating bush is secured to the conductor at a position near the said insulator, and wherein the said insulating bush is surrounded by a barrier disk so as to leave a slit between itself and the barrier disk, the space left above the barrier disk being occupied by a sealing gas maintained under overpressure with respect to the pressure prevailing inside the electrical precipitation apparatus.
  • the sealing gas present in the duct is compressed and dust-containing gas can escape from the electrical precipitation apparatus and affect the insulating elements (insulating bush,
  • the present invention now provides an improved device for passing a conductor through the cover of an electrical precipitation apparatus down to its electrode system, characterized in that the conductor passes centrally through a porous insulator; the said insulator being concentrically surrounded by a gas-tight insulating cylinder, the said insulating cylinder, being provided with a tubular gas inlet opening thereinto, the upper and lower ends of the said insulator and the said insulating cylinder, respectively, being connected together by annular metal plates so as to form a space therebetween, said space being occupied by a sealing gas delivered through said tubular gas inlet and maintained under overpressure with respect to the pressure prevailing inside the electrical precipitation apparatus.
  • the said insulator a. for the said insulator to be made of porous polytetrafluoroethylene; b. for the porous polytetrafluoroethylene to have pores with a diameter between 40 and 60 microns, preferably 50 microns.
  • a conductor 1, i.e., the upper portion thereof, is surrounded by a bellows 8, of which the upper end is connected to conductor 1, e.g., by bolts, and of which the lower end is secured to an annular metal plate 9.
  • annular metal plate 9 Further secured to annular metal plate 9 are a porous insulator 3 and an insulating cylinder 4 concentrically surrounding porous insulator 3.
  • a tubular gas inlet 5 opens into insulating cylinder 4.
  • the lower ends of porous insulator 3 and insulating cylinder 4 are connected together by means of an annular metal plate 10 so as to form an annular space 6 between and bounded by porous insulator 3, annular metal plates (9, l0) and insulating cylinder 4.
  • Placed below metal plate 10 is a cylindrical connection 11 and secured thereto are a cover 7 of a sealing cup and its associated diving hell 2.
  • Sealing gas which is introduced under a pressure of substantially 1 atmosphere (gauge) into space 6, through tubular gas inlet 5, flows through the pores of porous insulator 3 and produces a continually renewing gas film on the surface of porous insulator 3 facing conductor 1. As a result, electrically conducting material is prevented from depositing on porous insulator 3.
  • the consumption of sealing gas in the device of the present invention is very low, due to the dimensions selected for the pores (50 microns, for example).
  • a lead-in device passing a conductor through the cover of an electrical precipitation apparatus down to its spray system characterized in that the conductor passes centrally through a porous insulator; the said insulator being concentrically surrounded by a gas-tight insulating cylinder; the said insulating cylinder being provided with a tubular gas inlet opening thereinto; the upper and lower ends of the said insulator and the said insulating cylinder, respectively, being connected together by annular metal plates so as to form a space therebetween, and said space being occupied by a sealing gas maintained at a relatively higher pressure than that prevailing inside the electrical precipitation apparatus.
  • porous polytetrafluoroethylene has pores with a diameter between 40 and 60 microns.
  • porous polytetrafluoroethylene has pores with a diameter of 50 microns.

Abstract

Improved lead-in device passing a conductor through the cover of an electrical precipitation apparatus down to its spray system. The improved device is characterized in that a porous insulator is used as the insulator and a gas-tight insulating cylinder concentrically surrounds the porous insulator. The device is further fitted with a tubular gas inlet opening into the porous insulating cylinder. The upper and lower ends of the insulator and the insulating cylinder, respectively, are connected together by annular metal plates so as to form a space therebetween, and the space is occupied by a sealing gas maintained at a relatively higher pressure than that prevailing inside the electrical precipitation apparatus.

Description

[ Aug. 28, 1973 United States Patent [191 Queck et a1.
[56] References Cited UNITED STATES PATENTS 1 1 DEVICE FOR PASSING A CONDUCTOR THROUGH THE COVER OF AN 3,595,983 7/1971 Muller et a1. 174/315 ELECTRICAL PRECIPITATION APPARATUS Primary Examiner-Laramie E. Askin Attorney-Arthur G. Connolly, Jacob C. Kellem et knapsack Aktiengeselischnft,
[57] ABSTRACT Improved lead-in device passing a conductor through the cover of an electrical precipitation apparatus down [73] Assignee:
Knapsack near Cologne, Germany Aug. 7, 1972.
[22] Filed:
to its spray system. The improved device is character- PP 2731569 ized in that a porous insulator is used as the insulator [30] and a gas-tight insulating cylinder concentrically sur- Fords Applicamn Pmmty Data rounds the porous insulator. The device is further fitted Aug. 9, 1971 Germany................... P 21 39 824.3
with a tubular gas inlet opening into the porous insulating cylinder. The upper and lower ends of the insulator 174/31 R,
174/21 1 and the insulating cylinder, respectively, are connected together by annular metal plates so as to form a space Bose 3/34 Holt 17,26 therebetween, and the space is occupied by a sealing Field of gas maintained at a relatively higher pressure than that prevailing inside the electrical precipitation apparatus.
[51] Int. [58] 174/11 BB, 12 RH, 174/14 BH,15 BB, 16 BH,17.06, 18, 31 R 4 Claims, 1 Drawing Figure Hig DEVICE FOR PASSING A CONDUCTOR THROUGH THE COVER OF AN ELECTRICAL PRECIPITATION APPARATUS The present invention provides a device passing a conductor through the cover of an electrical precipitation apparatus.
US. Pat. No. 3,595,983 describes a device for passing a conductor through the cover of an electrical precipitation apparatus down to its electrode system, the conductor being concentrically surrounded by a duct arranged to run through the cover of the electrical precipitation apparatus to the interior of the said apparatus, wherein the conductor is surrounded near its supper end by an insulator; the said insulator being positioned above the cover of the said apparatus so as to be radially spaced from the conductor, wherein an insulating bush is secured to the conductor at a position near the said insulator, and wherein the said insulating bush is surrounded by a barrier disk so as to leave a slit between itself and the barrier disk, the space left above the barrier disk being occupied by a sealing gas maintained under overpressure with respect to the pressure prevailing inside the electrical precipitation apparatus.
Upon the occurrence of undue pressure variations in the electrical precipitation apparatus, the sealing gas present in the duct is compressed and dust-containing gas can escape from the electrical precipitation apparatus and affect the insulating elements (insulating bush,
barrier disk, insulator) with the resultant formation of electrically conducting material on said insulating elements. This in turn may result in electrical flashing over. The present invention now provides an improved device for passing a conductor through the cover of an electrical precipitation apparatus down to its electrode system, characterized in that the conductor passes centrally through a porous insulator; the said insulator being concentrically surrounded by a gas-tight insulating cylinder, the said insulating cylinder, being provided with a tubular gas inlet opening thereinto, the upper and lower ends of the said insulator and the said insulating cylinder, respectively, being connected together by annular metal plates so as to form a space therebetween, said space being occupied by a sealing gas delivered through said tubular gas inlet and maintained under overpressure with respect to the pressure prevailing inside the electrical precipitation apparatus.
Further preferred features of the device of the present invention, which can be used singly or in combination, provide;
a. for the said insulator to be made of porous polytetrafluoroethylene; b. for the porous polytetrafluoroethylene to have pores with a diameter between 40 and 60 microns, preferably 50 microns.
The invention will now be described with reference to the accompanying drawing, of which the single FlG- URE is a side elevational view of the device of the present invention.
As can be seen, a conductor 1, i.e., the upper portion thereof, is surrounded by a bellows 8, of which the upper end is connected to conductor 1, e.g., by bolts, and of which the lower end is secured to an annular metal plate 9. Further secured to annular metal plate 9 are a porous insulator 3 and an insulating cylinder 4 concentrically surrounding porous insulator 3. A tubular gas inlet 5 opens into insulating cylinder 4. The lower ends of porous insulator 3 and insulating cylinder 4 are connected together by means of an annular metal plate 10 so as to form an annular space 6 between and bounded by porous insulator 3, annular metal plates (9, l0) and insulating cylinder 4. Placed below metal plate 10 is a cylindrical connection 11 and secured thereto are a cover 7 of a sealing cup and its associated diving hell 2.
Sealing gas, which is introduced under a pressure of substantially 1 atmosphere (gauge) into space 6, through tubular gas inlet 5, flows through the pores of porous insulator 3 and produces a continually renewing gas film on the surface of porous insulator 3 facing conductor 1. As a result, electrically conducting material is prevented from depositing on porous insulator 3.
The consumption of sealing gas in the device of the present invention is very low, due to the dimensions selected for the pores (50 microns, for example).
We claim:
1. A lead-in device passing a conductor through the cover of an electrical precipitation apparatus down to its spray system, characterized in that the conductor passes centrally through a porous insulator; the said insulator being concentrically surrounded by a gas-tight insulating cylinder; the said insulating cylinder being provided with a tubular gas inlet opening thereinto; the upper and lower ends of the said insulator and the said insulating cylinder, respectively, being connected together by annular metal plates so as to form a space therebetween, and said space being occupied by a sealing gas maintained at a relatively higher pressure than that prevailing inside the electrical precipitation apparatus.
2. The device as claimed in claim 1, wherein the said insulator is made up of porous polytetrafluoroethylene.
3. The device as claimed in claim 2, wherein the porous polytetrafluoroethylene has pores with a diameter between 40 and 60 microns.
4. The device as claimed in claim 3, wherein the porous polytetrafluoroethylene has pores with a diameter of 50 microns.

Claims (4)

1. A lead-in device passing a conductor through the cover of an electrical precipitation apparatus down to its spray system, characterized in that the conductor passes centrally through a porous insulator; the said insulator being concentrically surrounded by a gas-tight insulating cylinder; the said insulating cylinder being provided with a tubular gas inlet opening thereinto; the upper and lower ends of the said insulator and the said insulating cylinder, respectively, being connected together by annular metal plates so as to form a space therebetween, and said space being occupied by a sealing gas maintained at a relatively higher pressure than that prevailing inside the electrical precipitation apparatus.
2. The device as claimed in claim 1, wherein the said insulator is made up of porous polytetrafluoroethylene.
3. The device as claimed in claim 2, wherein the porous polytetrafluoroethylene has pores with a diameter between 40 and 60 microns.
4. The device as claimed in claim 3, wherein the porous polytetrafluoroethylene has pores with a diameter of 50 microns.
US00278569A 1971-08-09 1972-08-07 Device for passing a conductor through the cover of an electrical precipitation apparatus Expired - Lifetime US3755611A (en)

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Application Number Priority Date Filing Date Title
DE2139824A DE2139824C2 (en) 1971-08-09 1971-08-09 Device for leading a voltage supply conductor through the cover of an electrostatic precipitator

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CA (1) CA993810A (en)
DE (1) DE2139824C2 (en)
GB (1) GB1371545A (en)
NL (1) NL7209437A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972701A (en) * 1974-12-09 1976-08-03 Environmental Elements Corporation Electrostatic precipitator having electrode stabilizer means
US4251682A (en) * 1979-04-02 1981-02-17 Hoechst Aktiengesellschaft Operation of a lead-in-device receiving a conductor passed through the cover of an electrical precipitation apparatus
US4294591A (en) * 1980-05-12 1981-10-13 Envirotech Corporation Mounting for high-voltage electrode support frame in an electrostatic precipitator
US4578088A (en) * 1984-12-17 1986-03-25 Fmc Corporation Electrical insulating and sealing apparatus and process for using same
DE3910931A1 (en) * 1989-04-05 1990-10-11 Siegfried Dr Ing Straemke Conductor bushing in a vacuum container
US5147423A (en) * 1991-03-01 1992-09-15 Richards Clyde N Corona electrode for electrically charging aerosol particles
US5482540A (en) * 1994-01-31 1996-01-09 Castine Energy Services Electrostatic precipitator frame stabilizer and method of operation
US6632267B1 (en) * 1999-03-05 2003-10-14 Veikko Ilmasti Method and device for separating materials in the form of particles and/or drops from a gas flow
EP2253381A1 (en) * 2008-03-11 2010-11-24 Daikin Industries, Ltd. Air processor
CN107159467A (en) * 2017-05-27 2017-09-15 宁波市镇海捷登应用技术研究所 A kind of air purifier for preventing high-tension electricity from being turned on from insulator surface
US11123751B2 (en) * 2019-08-01 2021-09-21 Infinite Cooling Inc. Panels for use in collecting fluid from a gas stream
US11786915B2 (en) 2019-08-01 2023-10-17 Infinite Cooling Inc. Systems and methods for collecting fluid from a gas stream

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595983A (en) * 1968-10-04 1971-07-27 Knapsack Ag Device for passing a tension supply line through the cover of an electric filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054629A (en) * 1900-01-01
DE1457252B2 (en) * 1961-07-12 1972-02-10 Aktiebolaget Svenska Flaktfabriken, Nacka (Schweden) ROCKING DEVICE FOR THE ELECTRODES IN ELECTROSTATIC DUST COLLECTORS
GB1123742A (en) * 1965-03-15 1968-08-14 Svenska Carbon Black Aktiebola Improvements relating to apparatus and process for producing carbon black

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595983A (en) * 1968-10-04 1971-07-27 Knapsack Ag Device for passing a tension supply line through the cover of an electric filter

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972701A (en) * 1974-12-09 1976-08-03 Environmental Elements Corporation Electrostatic precipitator having electrode stabilizer means
US4251682A (en) * 1979-04-02 1981-02-17 Hoechst Aktiengesellschaft Operation of a lead-in-device receiving a conductor passed through the cover of an electrical precipitation apparatus
US4294591A (en) * 1980-05-12 1981-10-13 Envirotech Corporation Mounting for high-voltage electrode support frame in an electrostatic precipitator
US4578088A (en) * 1984-12-17 1986-03-25 Fmc Corporation Electrical insulating and sealing apparatus and process for using same
DE3910931A1 (en) * 1989-04-05 1990-10-11 Siegfried Dr Ing Straemke Conductor bushing in a vacuum container
US5072693A (en) * 1989-04-05 1991-12-17 Siegfried Straemke Conductor passage at a vacuum container
US5147423A (en) * 1991-03-01 1992-09-15 Richards Clyde N Corona electrode for electrically charging aerosol particles
US5482540A (en) * 1994-01-31 1996-01-09 Castine Energy Services Electrostatic precipitator frame stabilizer and method of operation
US6632267B1 (en) * 1999-03-05 2003-10-14 Veikko Ilmasti Method and device for separating materials in the form of particles and/or drops from a gas flow
EP2253381A1 (en) * 2008-03-11 2010-11-24 Daikin Industries, Ltd. Air processor
EP2253381A4 (en) * 2008-03-11 2014-02-26 Daikin Ind Ltd Air processor
CN107159467A (en) * 2017-05-27 2017-09-15 宁波市镇海捷登应用技术研究所 A kind of air purifier for preventing high-tension electricity from being turned on from insulator surface
US11123751B2 (en) * 2019-08-01 2021-09-21 Infinite Cooling Inc. Panels for use in collecting fluid from a gas stream
US11786915B2 (en) 2019-08-01 2023-10-17 Infinite Cooling Inc. Systems and methods for collecting fluid from a gas stream

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Publication number Publication date
DE2139824C2 (en) 1982-10-14
CA993810A (en) 1976-07-27
NL7209437A (en) 1973-02-13
DE2139824A1 (en) 1973-02-22
GB1371545A (en) 1974-10-23

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