US3918938A - Electrode support apparatus for electrical precipitators - Google Patents

Electrode support apparatus for electrical precipitators Download PDF

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Publication number
US3918938A
US3918938A US478529A US47852974A US3918938A US 3918938 A US3918938 A US 3918938A US 478529 A US478529 A US 478529A US 47852974 A US47852974 A US 47852974A US 3918938 A US3918938 A US 3918938A
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electrode
tabs
support means
hanger
tab
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US478529A
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Richard L Kline
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Allis Chalmers Corp
Daikin Applied Americas Inc
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American Air Filter Co Inc
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Assigned to CITICORP NORTH AMERICA, INC. reassignment CITICORP NORTH AMERICA, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SNYDERGENERAL CORPORATION, A MN CORP.
Assigned to SNYDERGENERAL CORPORATION reassignment SNYDERGENERAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIS-CHALMERS CORPORATION
Assigned to ALLIS-CHALMERS CORPORATION, 1126 S. 70TH STR., W. ALLIS, WI., A DE CORP. reassignment ALLIS-CHALMERS CORPORATION, 1126 S. 70TH STR., W. ALLIS, WI., A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMERICAN AIR FILTER COMPANY, INC.
Assigned to CITICORP NORTH AMERICA, INC. reassignment CITICORP NORTH AMERICA, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SNYDERGENERAL CORPORATION
Assigned to SNYDERGENERAL CORPORATION A CORP. OF DELAWARE reassignment SNYDERGENERAL CORPORATION A CORP. OF DELAWARE RELEASE BY SECOND PARTY OF A SECURITY AGREEMENT RECORDED AT REEL 5013 FRAME 592. Assignors: CITICORP NORTH AMERICA, INC. A CORP. OF DELAWARE
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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
    • B03C3/86—Electrode-carrying means

Definitions

  • An apparatus for supporting and electrically connect ing a discharge electrode of an electrical precipitator comprising a support channel having a set of receiving tabs and in combination therewith an electrode hanger configured to he remorabh received by said tabs to electrically connect and support an attached electrode.
  • the invention includes, an electrostatic precipitator comprising a discharge electrode construction and support means therefor comprising:
  • a current carrying support means having a plurality of hanger engaging tabs projecting therefrom, the tabs being arranged in sets, each set including two tabs lying in intersecting planes and projecting from the same side of the support means, the set of tabs being further defined in that each tab is oblique with respect to the other;
  • the tabs defining electrode hanger receiving slots, one slot located between each of the tabs and the current carrying support means, the electrode hanger receiving slots being generally V-shaped in cross-section;
  • a self-aligning electrode hanger having a discharge electrode attached thereto and having tab engaging edges which are removably received in the electrode hanger receiving slots of a set of tabs.
  • the electrode apparatus of this invention has been found to be very useful in that it provides a simple easily constructed effective means of supporting and electrically connecting discharge electrodes of electrostatic precipitators to current carrying support means.
  • FIG. I is an isometric view showing the discharge electrode support apparatus of this invention.
  • FIG. 2 is an enlarged isometric view of the support means shown in FIG. 1.
  • FIG. 3 is a view taken along line 3-3 of FIG. 2.
  • FIG. 4 is an elevational view of the electrode hanger of FIG. 1.
  • FIG. 5 is an isometric view of an alternative embodiment of the invention.
  • FIG. 6 is an enlarged isometric view of the support means of FIG. 5.
  • FIG. 7 is a view taken along line 7-7 of FIG. 6.
  • FIG. 8 is an elevational view of the electrode hanger of FIG. 5.
  • FIG. I shows a support means 10 which contains preselectively positioned sets of hanger engaging tabs ll projecting therefrom.
  • the tabs 11 lie in intersecting planes and project from the same side of support means 10.
  • tabs I I are oblique with respect to each other. It is also possible that one tab could be vertical and the other slanted,
  • Each tab 11 forms a V- shaped electrode hanger receiving slot 12 with support means 10, and in doing so, the tabs which are advantageously punched from support means 10 project outwardly at an angle of about 30 degrees with respect to support plate 10.
  • Electrode hanger receiving slots 12, formed by tabs 11 of a set, function cooperatively with one another to removably receive an electrode hanger 13.
  • electrode receiving slots 12 are advantageously V-shaped in cross-section but need not be limited to such a configuration.
  • Electrode hangers 13, are shaped to engage tabs 11 and be in positive electrical contact between tabs ll and support means 10.
  • the electrode hangers are advantageously flat but can be of any curvature, (for example, bowed) which is not inconsistent with achieving the advantages of this invention.
  • the precipitator electrodes 19 are connected to the electrode hangers 13 opposite end portions 14 and the electrodes are weighted on their lower ends thereby providing a constant force to hold hangers 13 in engagement with tabs 11.
  • tab engaging edges 18 of hangers 13 are advantageously tapered to slant with respect to each other at the same angle as does each tab 11 with respect to the other tab in each set. Such slanted tab engaging edges give a self-aligning feature to hangers 13 and allow for maximum electrical contact between support means 10 and hangers 13 while insuring positive removability of the two.
  • electrode hanger l3 advantageously has an enlarged end portion 14 serving as a failsafe stop should tabs 11 accidentally become spread so far apart that they no longer engage edges 18.
  • hanger 13 has an aperture 15 therein. In its assembled condition (FIG. 1) aperture 15 aligns with support means aperture 17 to allow a fastener, such as a nut and bolt (not shown), to be passed therethrough.
  • FIGS. 5-8 show an alternative embodiment of the invention wherein tabs 11 open outwardly away from each other and are mutually convergent upwardly.
  • Electrode hangers 13 are generally T-shaped having projections 16 extending downwardly from the cross bar or end portion 14 thereof.
  • FIG. 5 shows the electrode hangers removably received in the electrode receiving slots 12. Again, in the construction of this embodiment tabs ll are advantageously punched from the electrode support means. Also electrode hangers 13 are advantageously flat.
  • a current carrying support means 10 advantageously a channel shaped member, in position in his electrical precipitator, the support means having sets of tabs ll preselectively located so that the discharge electrodes will be properly located therein.
  • discharge electrodes having hangers attached to one end thereof and electrode weights or additional hangers attached to the other end thereof are fabricated.
  • the electrodes are then placed within the precipitator with each hanger being received in the electrode receiving slots of a set of tabs and in positive electrical contact with the tabs and support means, in a removable manner.
  • a current carrying support means having a vertical wall and a plurality of hanger engaging tabs punched outwardly therefrom, the tabs being arranged in sets, each set including two sets lying in intersecting planes and projecting from the same side of said support means wherein each tab of each set of tabs opens toward the other of the same set, the two tabs being divergent upwardly to each other;
  • said tabs defining electrode hanger receiving slots one slot located between each of said tabs and said support means, said electrode hanger receiving slots being generally V-shaped in cross-section;
  • a self-aligning electrode hanger having a discharge electrode attached thereto and having tab engaging edges which are removably received in said electrode hanger receiving slots of a set of tabs, said self-aligning electrode hanger being tapered to fit between a set of tabs with its edges removably engaging said tabs.
  • each tab of each set of tabs is oblique with respect to the other tab of the same set.

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Abstract

An apparatus for supporting and electrically connecting a discharge electrode of an electrical precipitator, the apparatus comprising a support channel having a set of receiving tabs and in combination therewith an electrode hanger configured to be removably received by said tabs to electrically connect and support an attached electrode.

Description

United States Patent an Kline 1 1 ELECTRODE SUPPORT APPARATUS FOR ELECTRICAL PRECIPITATORS [75] Inventor: Richard L. Kline, Louisville. Ky.
[73] Assignee: American Air Filter Company. Inc..
Louisville. K).
122] Filed: June 12. I974 [21 I Appl. No.1 478.529
Related US. Application Data [(52l Di\ision of Scr. No. 238.247. March 27. 1972. Pat.
1 1 Nov. 11. 1975 2. 36.385 12/1943 Bateheller... 339/278 TX 2.688.688 9/1954 Holt/ 339/273 F 2.695.653 11/1954 Flint 248/224 X 3.1116981) 1/1962 Gonzalez 55/137 311881192 4/1963 Ullrich 339/248 3.175.341 3/1965 Winter 55/43 3.4831171) 12/1969 Quintilian et al. 55/112 351114498 3/1970 1 indholm................. 287/205 FOREIGN PATENTS OR APPLICATIONS 831.824 3/19M1 United Kingdonr.... 248/224 995.555 8/1951 France 248/224 544.084 2/1932 German 55/154 546.352 3/1932 German 55/154 Primary Iimm/Inr-Bt: rnard Nozick 1571 ABSTRACT An apparatus for supporting and electrically connect ing a discharge electrode of an electrical precipitator. the apparatus comprising a support channel having a set of receiving tabs and in combination therewith an electrode hanger configured to he remorabh received by said tabs to electrically connect and support an attached electrode.
4 Claims. 8 Drawing Figures US. Patent Nov. 11, 1975 Sheetlof2 3,918,938
U.S. Patent Nov. 11, 1975 Sheet 2 of 2 ELECTRODE SUPPORT APPARATUS FOR ELECTRICAL PRECIPITATORS CROSS REFERENCE TO RELATED APPLICATIONS The present invention is a division of co-pending application, Ser. No. 238,247, filed Mar. 27, I972 by Richard L. Kline, now US. Pat. No. 3,835,623 issued Sept, 17, I974.
BACKGROUND OF THE INVENTION Previously, it has been a problem to secure and electrically connect the discharge electrodes of an electrical precipitator to a current carrying support means. Advantageously, the electrodes are sought to be removably fastened so that they can be easily replaced, yet, not easily dislodged during precipitator operation, by various influences, such as the incoming dirty gas stream, or the vibrations of a downstream collecting plate cleaning mechanism. Previous attempts at providing a suitable electrode support and electrical connector have resulted in constructions which have been costly, complicated, and difficult to fabricate. However, the invention of this application avoids the problems of the prior art constructions and provides a straightforward inexpensive readily constructed and easily maintained apparatus for supporting and electrically connecting discharge electrodes in an electrical precipitator.
SUMMARY OF THE INVENTION The invention includes, an electrostatic precipitator comprising a discharge electrode construction and support means therefor comprising:
an electrode support apparatus;
a current carrying support means having a plurality of hanger engaging tabs projecting therefrom, the tabs being arranged in sets, each set including two tabs lying in intersecting planes and projecting from the same side of the support means, the set of tabs being further defined in that each tab is oblique with respect to the other;
the tabs defining electrode hanger receiving slots, one slot located between each of the tabs and the current carrying support means, the electrode hanger receiving slots being generally V-shaped in cross-section;
a self-aligning electrode hanger having a discharge electrode attached thereto and having tab engaging edges which are removably received in the electrode hanger receiving slots of a set of tabs.
The electrode apparatus of this invention has been found to be very useful in that it provides a simple easily constructed effective means of supporting and electrically connecting discharge electrodes of electrostatic precipitators to current carrying support means.
DESCRIPTION OF THE DRAWINGS FIG. I is an isometric view showing the discharge electrode support apparatus of this invention.
FIG. 2 is an enlarged isometric view of the support means shown in FIG. 1.
FIG. 3 is a view taken along line 3-3 of FIG. 2.
FIG. 4 is an elevational view of the electrode hanger of FIG. 1.
FIG. 5 is an isometric view of an alternative embodiment of the invention.
FIG. 6 is an enlarged isometric view of the support means of FIG. 5.
FIG. 7 is a view taken along line 7-7 of FIG. 6.
FIG. 8 is an elevational view of the electrode hanger of FIG. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. I shows a support means 10 which contains preselectively positioned sets of hanger engaging tabs ll projecting therefrom. The tabs 11 lie in intersecting planes and project from the same side of support means 10. Advantageously, tabs I I are oblique with respect to each other. It is also possible that one tab could be vertical and the other slanted, Each tab 11 forms a V- shaped electrode hanger receiving slot 12 with support means 10, and in doing so, the tabs which are advantageously punched from support means 10 project outwardly at an angle of about 30 degrees with respect to support plate 10. Electrode hanger receiving slots 12, formed by tabs 11 of a set, function cooperatively with one another to removably receive an electrode hanger 13. In this regard, electrode receiving slots 12 are advantageously V-shaped in cross-section but need not be limited to such a configuration.
Electrode hangers 13, (FIGS. 4 and 8), are shaped to engage tabs 11 and be in positive electrical contact between tabs ll and support means 10. The electrode hangers are advantageously flat but can be of any curvature, (for example, bowed) which is not inconsistent with achieving the advantages of this invention. The precipitator electrodes 19 are connected to the electrode hangers 13 opposite end portions 14 and the electrodes are weighted on their lower ends thereby providing a constant force to hold hangers 13 in engagement with tabs 11. It is important to note that tab engaging edges 18 of hangers 13 are advantageously tapered to slant with respect to each other at the same angle as does each tab 11 with respect to the other tab in each set. Such slanted tab engaging edges give a self-aligning feature to hangers 13 and allow for maximum electrical contact between support means 10 and hangers 13 while insuring positive removability of the two.
Advantageously, with respect to the embodiment shown in FIGS. 1-4, when the electrode hangers are wedge-shaped, the tabs of a set open toward each other and are mutually divergent upwardly, while, with respect to the embodiment shown in FIGS. 5-8, when the electrode hangers are T-shaped, the tabs of a set open away from each other and are advantageously mutually convergent upwardly.
As shown in FIG. 4 electrode hanger l3 advantageously has an enlarged end portion 14 serving as a failsafe stop should tabs 11 accidentally become spread so far apart that they no longer engage edges 18. Also hanger 13 has an aperture 15 therein. In its assembled condition (FIG. 1) aperture 15 aligns with support means aperture 17 to allow a fastener, such as a nut and bolt (not shown), to be passed therethrough.
FIGS. 5-8 show an alternative embodiment of the invention wherein tabs 11 open outwardly away from each other and are mutually convergent upwardly. Electrode hangers 13 are generally T-shaped having projections 16 extending downwardly from the cross bar or end portion 14 thereof. FIG. 5 shows the electrode hangers removably received in the electrode receiving slots 12. Again, in the construction of this embodiment tabs ll are advantageously punched from the electrode support means. Also electrode hangers 13 are advantageously flat. In the use of the apparatus of this invention one firstly provides a current carrying support means 10, advantageously a channel shaped member, in position in his electrical precipitator, the support means having sets of tabs ll preselectively located so that the discharge electrodes will be properly located therein. Secondly, discharge electrodes having hangers attached to one end thereof and electrode weights or additional hangers attached to the other end thereof are fabricated. The electrodes are then placed within the precipitator with each hanger being received in the electrode receiving slots of a set of tabs and in positive electrical contact with the tabs and support means, in a removable manner.
it should be further noted that although the invention has been shown in the drawing in terms of a support means comprising tabs 1 I it is equally feasible that tabs H could be located in a second hanger of an electrode and thus two electrodes could be coupled in end to end fashion. It is, of course, also possible that the hanger of an electrode would contain tabs 11 and the support means would have, protruding therefrom, a portion identical to the shown electrode hangers to form a similar electrode support apparatus with the disclosed elements reversed. All of these variations are intended to be within the scope of this disclosure.
Having described the invention, what is claimed is:
I. In an electrostatic precipitator the improvement comprising a discharge electrode construction and support means therefor comprising:
an electrode support apparatus;
a current carrying support means having a vertical wall and a plurality of hanger engaging tabs punched outwardly therefrom, the tabs being arranged in sets, each set including two sets lying in intersecting planes and projecting from the same side of said support means wherein each tab of each set of tabs opens toward the other of the same set, the two tabs being divergent upwardly to each other;
said tabs defining electrode hanger receiving slots one slot located between each of said tabs and said support means, said electrode hanger receiving slots being generally V-shaped in cross-section;
a self-aligning electrode hanger having a discharge electrode attached thereto and having tab engaging edges which are removably received in said electrode hanger receiving slots of a set of tabs, said self-aligning electrode hanger being tapered to fit between a set of tabs with its edges removably engaging said tabs.
2. The apparatus of claim 1 wherein each tab of each set of tabs is oblique with respect to the other tab of the same set.
3. The discharge electrode support apparatus of claim 1 wherein said tabs project at an angle of about 30 with respect to said support means.
4. The discharge electrode support apparatus of claim 1 wherein said electrode hanger comprises two tapered edges which are received one by each of said tabs to positively removably engage said support means.

Claims (3)

  1. 2. The apparatus of claim 1 wherein each tab of each set of tabs is oblique with respect to the other tab of the same set.
  2. 3. The discharge electrode support apparatus of claim 1 wherein said tabs project at an angle of about 30* with respect to said support means.
  3. 4. The discharge electrode support apparatus of claim 1 wherein said electrode hanger comprises two tapered edges which are received one by each of said tabs to positively removably engage said support means.
US478529A 1972-03-27 1974-06-12 Electrode support apparatus for electrical precipitators Expired - Lifetime US3918938A (en)

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US00238247A US3835623A (en) 1972-03-27 1972-03-27 Electrode support apparatus for electrical precipitators
US478529A US3918938A (en) 1972-03-27 1974-06-12 Electrode support apparatus for electrical precipitators

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392724A1 (en) * 1977-05-31 1978-12-29 Elex Ag ELECTRODE SUSPENSION DEVICE, ESPECIALLY FOR ELECTROSTATIC SEPARATOR
US20070193449A1 (en) * 2006-02-21 2007-08-23 Alstom Technology Ltd. Method and apparatus for preventing wear in an electrostatic precipitator

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919896A (en) * 1908-08-01 1909-04-27 Louis A Lemke Kitchen-rack.
US1196617A (en) * 1916-02-12 1916-08-29 John Truesdell Fastening device.
US1758404A (en) * 1925-09-02 1930-05-13 American Smelting Refining Apparatus for removing dust from electrodes
US2336385A (en) * 1941-03-14 1943-12-07 Standard Mfg Co Electric connector
US2688688A (en) * 1949-07-22 1954-09-07 Louis M Holtz Replaceable vehicle lamp unit
US2695658A (en) * 1949-04-19 1954-11-30 American Metal Prod Spring supporting clip having locking tongue
US3016980A (en) * 1959-03-09 1962-01-16 American Air Filter Co Electrostatic precipitator
US3088092A (en) * 1956-01-16 1963-04-30 Ferro Corp Quickly applicable and removable bus bar
US3175341A (en) * 1962-05-01 1965-03-30 Westinghouse Electric Corp Collector cells for electrostatic precipitators
US3483670A (en) * 1967-12-15 1969-12-16 Koppers Co Inc Discharge electrode assembly for electrostatic precipitators
US3501898A (en) * 1965-03-05 1970-03-24 Svenska Flaektfabriken Ab Emitting electrode assembly for electrostatic precipitators

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919896A (en) * 1908-08-01 1909-04-27 Louis A Lemke Kitchen-rack.
US1196617A (en) * 1916-02-12 1916-08-29 John Truesdell Fastening device.
US1758404A (en) * 1925-09-02 1930-05-13 American Smelting Refining Apparatus for removing dust from electrodes
US2336385A (en) * 1941-03-14 1943-12-07 Standard Mfg Co Electric connector
US2695658A (en) * 1949-04-19 1954-11-30 American Metal Prod Spring supporting clip having locking tongue
US2688688A (en) * 1949-07-22 1954-09-07 Louis M Holtz Replaceable vehicle lamp unit
US3088092A (en) * 1956-01-16 1963-04-30 Ferro Corp Quickly applicable and removable bus bar
US3016980A (en) * 1959-03-09 1962-01-16 American Air Filter Co Electrostatic precipitator
US3175341A (en) * 1962-05-01 1965-03-30 Westinghouse Electric Corp Collector cells for electrostatic precipitators
US3501898A (en) * 1965-03-05 1970-03-24 Svenska Flaektfabriken Ab Emitting electrode assembly for electrostatic precipitators
US3483670A (en) * 1967-12-15 1969-12-16 Koppers Co Inc Discharge electrode assembly for electrostatic precipitators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392724A1 (en) * 1977-05-31 1978-12-29 Elex Ag ELECTRODE SUSPENSION DEVICE, ESPECIALLY FOR ELECTROSTATIC SEPARATOR
US20070193449A1 (en) * 2006-02-21 2007-08-23 Alstom Technology Ltd. Method and apparatus for preventing wear in an electrostatic precipitator
US7438742B2 (en) * 2006-02-21 2008-10-21 Alstom Technology Ltd Method and apparatus for preventing wear in an electrostatic precipitator

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