CA1101788A - Electrode supporting base means for electrostatic precipitators - Google Patents
Electrode supporting base means for electrostatic precipitatorsInfo
- Publication number
- CA1101788A CA1101788A CA252,761A CA252761A CA1101788A CA 1101788 A CA1101788 A CA 1101788A CA 252761 A CA252761 A CA 252761A CA 1101788 A CA1101788 A CA 1101788A
- Authority
- CA
- Canada
- Prior art keywords
- collector
- trough
- structures
- drain
- assemblies
- 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
Links
- 239000012717 electrostatic precipitator Substances 0.000 title claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 43
- 238000000429 assembly Methods 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- B03C3/36—Controlling flow of gases or vapour
-
- 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
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- 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
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
Landscapes
- Electrostatic Separation (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The disclosure relates to a base for supporting hollow cylindrical and circular in cross section discharge and collector electrodes for an electro-static precipitator. Said base comprising a central portion and being generally circular; a plurality of generally arcuate collector trough assemblies which are generally circular and which intersect radially disposed drain troughs; said collector trough assemblies being concentric with said center portion of said base and said drain troughs extending radially outward therefrom; a circular wall structure secured to outer ends of said drain troughs; fixture means for securing said collector electrodes on said drain troughs; uppermost portions of said drain troughs and said collector troughs being substantially flush with each other and substantially or, a common plane.
The disclosure relates to a base for supporting hollow cylindrical and circular in cross section discharge and collector electrodes for an electro-static precipitator. Said base comprising a central portion and being generally circular; a plurality of generally arcuate collector trough assemblies which are generally circular and which intersect radially disposed drain troughs; said collector trough assemblies being concentric with said center portion of said base and said drain troughs extending radially outward therefrom; a circular wall structure secured to outer ends of said drain troughs; fixture means for securing said collector electrodes on said drain troughs; uppermost portions of said drain troughs and said collector troughs being substantially flush with each other and substantially or, a common plane.
Description
78~
PRIOR ART
United States patent 3,742,681 is believed to be the most pertinent prior art relating to the subject matter of this application.
BACKGROUND OF THE INVENTION
Prior art electrostatic precipitators wherein there are concentric spaced apart generally circular in cross section cylindrical electrode structures have been provided with supporting base elements for carrying the collector electrodes of electrostatic precipitators and in the construction of supporting bases for collector electrodes it has been a problem to properly assemble drain troughs as well as collector troughs and also inlet venturi structures all within a reasonable elevation and so as to provide for uniformity of structure as well as efficient aerodynamic operation thereof.
SUMMARY OF THE INVENTION
The present invention relates to a collector electrode supporting base means for electrostatic precipitators and this base means comprises a plurality of generally circular collector trough assemblies which intersect radially disposed drain trough assemblies which extend from a central portion of the base to a peripheral generally circular frame structure.
The generally circular collector trough assemblies are composed of a plurality of arcuate sections disposed between the radially disposed drain troughs so that all of the trough structures may be substantially flush with each other on a horizontal plane at which lower edge portions of generally circular in cross section hollow cylindrical collector electrodes are supported. The arcuate sections of the collector trough assemblies are disposed below lower edges of the generally circular in cross section collector electrodes and aerodynamic venturi structures are connected to the collector trough ~ ~t~ 7 ~ ~
assemblies on a substantially common plane so that uniform aerodynamic flow functions may be accomplished throughout the entire inlet area of the base in order to provide substantially laminar flow of pneumatic fluids vertically relative to the generally vertical surfaces of the collector electrodes. The drain trough portions of the electrode base of the invention are radially disposed and are substantially U-shaped in cross section and are provided with openings in opposite sides thereof which communicate with the bottom portions of arcuate collector troughs which are disposed between the radially directed drain troughs. Coupler means on the drain troughs provide for hold down means such as bolts or the like for securing lower edges of the collector electrodes onto the upper surface of the base and this upper surface is substantially on a common plane with all of the collector trough assemblies and the drain trough structures on a common hor~zontal plane. Thus aerodynamic venturi structures secured to the collector trough asse~blies are disposed between the radially directed drain troughs and all of the aerodynamic functions of the venturi structures occur on a common plane so as to provide for uniform pneumatic flow characteristics of the fluids passing through the venturi structures and into laminar flow relationship with the wet wall surfaces of the collector electrodes. The base structure of the invention is primarily a support for wet wall collector electrodes of generally circular in cross section and the base functions to provide for water collection from the lower edges of the collector electrodes and the draining ; of this water to a disposal area so that contaminants contained in the water may be properly collected and conducted to a suitable sump or other area as desired.
Accordin~ly, it is an object of the invention to provide a novel collector electrode support~ng base means L78~3 for electrostatic precipitators which provides for desirable water collection and drain functions as well as a uniform support for aerodynamic venturies at the inlet edges of the collector electrodes and further to provide structural support for the collector electrodes which is rigid and will maintain accurate spaced relationship of the electrodes as well as axial alignment thereof.
Another object of the invention is to provide a base for collector electrodes of an electrostatic precipitator which is very rigid in proportion to the structural arrangement thereof and which is also very compact in vertical dimensions when used as a combined structural support, water drain means and aerody-namic venturi supporting structure.
Another object of the invention is to provide a collector electrode supporting base for electrostatic precipitators having novel means for securing the lower edges of collector electrodes thereto and for the access of a suitable wrench for engaging bolts which secure lower portions of the collector electrodes to the base.
Thus, in accordance with the present teachings, an electrode support base means for electrostatic precipitators is provided which comprises a plurality of generally circular collector trough assemblies with the collector trough assemblies each of a different diameter and radially spaced apart from an adjacent one of the trough assemblies. Each collector trough assembly is a generally U-shape in cross section structure. Support means are provided for supporting a generally circular in cross section cylindrical electrostatic collector electrode above the collector trough assembly. The base has a central generally vertical axis which is concentric with the generally circular trough collector assemblies with the base having a plurality of radially disposed 17~3 drain trough structures which have inner ends adjacent the axis, the drain trough structures have outer ends spaced radially from the inner ends with a generally circular wall structure supporting the outer ends of the drain trough structures. The circular collector trough assemblies intersect the radially dis-posed trough structures with the collector trough assemblies com-municating with the drain trough structures for draining liquid from the collector trough assemblies into the drain trough structures. A liquid outlet is provided communicating with the drain trough structures and the outlet projecting beyond the circular wall structure.
Further objects and advantages of the invention may be apparent from the following specification, appended claims and accompanying drawings~
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a fragmentary side elevational view of an electrostatic precipitator showing portions thereof broken away and in section and illustrating a collector electrode supporting base means of the invention therein;
Fig. 2 is an enlarged fragmentary plan sectional view taken from the line 2-2 of Fig. l;
Fig. 3 is an enlarged fragmentary sectional view taken from the line 3-3 of Fig. 2; and Fig. 4 is an enlarged fragmentary sectional view ; -3a-taken from the line 4-4 of Fig. 2 showing portions further broken away and in section to amplify the illustration.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The electrostatic precipitator, as shown in Fig. 1 of the drawings, is provided with a housing 10 having a tangential air inlet 12 wherein straightening vanes 14 direct pneumatic flow upwardly in a generally axial direction as indicated by an arrow A in Fig. 1 of the drawings.
Supported on the housing 10 by means of a flange structure 16 is a collector electrode supporting base 18. This base 18 is provided with a flange 20 which is an annular peripher-al flange matching the annular peripheral flange 16 and these flanges are bolted together by bolts 22, all as shown best in Fig. 1 of the drawings.
The electrode base 18 is provided with a generally circular peripheral wall 22 made of structural steel or the like, welded or otherwise secured to an inner surface 24 of the wall 22 are radially disposed drain troughs 26. These drain troughs 26 are U-shaped in cross section as shown ln Fig. 3 of the drawings and extend radially inward from the surface 24 o~
the wall 22 to a central hollow cyllndrical hub portion 28 to which the drain troughs 26 are welded or otherwise suitably secured. As shown best in Fig. 4 Of the drawings, a bottom portion 30 of each drain trough 26 is declined from the central hub portion 28 to the outer circular wall portion 22 so that water wil~ drain toward the wall 22 and outward through a suitable outlet fitting 32 which may be properly screw threaded to receive a con~entional plumbing drain fixture or the like.
Each drain trough 26, as shown in cross section in Fig. 3 of t~e dràwings is provided with opposlte up~axdly extending side portions 34 and 36 which are integr~l with the bottom portion 30 thereo~. WeIded to and connect~ng between the upper edge "' ~ ,3 ~ 4 -portions 38 and 40 of the respective side portions 34 and 36 are fixture receiving plates 42 having openings 44 therein.
These openings 44 receive bolts or cap screws 46 which are screw threaded into internally screw threaded portions of collector electrodes 48.
It will be seen that the connector plates 42 are all substantially flush with the upper edges 38 and 40 of the drain troughs 26 and that these plates 42, as shown in Fig. 4 of the drawings, are all disposed on a substantially horizontal plane relative to each other, this plane being at the upper edges 38 and 40 of the drain troughs 26 and at the inlet edges of the collector electrodes 48.
Secured in flush relationship with the upper edge 50 of the base wall structure 22 is an arcuate L-shaped in cross section angle member 52 which extends between each of the radially disposed drain troughs 26 and suitable open-ings 54 are provided in this member 52 for receiving bolts such as the bolt 46 shown in Fig. 3 of the drawings for holding the outermost collector electrode 48 securely in position on the base 18.
The central hub portion 28 of the base 18 is provided with an upper end plate 54 wh~ch is generally circular and provided with an extending flange portion 56 having openings 58 there~n adapted to receive bolts such as the bolts 46 for holdin~ the innermost one of the collector electrodes 48.
A lower end portion 60 of the hub portion 28 is adapted to fit into a hollow tubular member 62 which extends upward through the housing 10 but which is no part of the base structure. The top portion 54 of the hub 28 is provided with an openin~ 64 through which a conduit 66 extends. This conduit 66 is no part of the invention relative 78~
to the base structure.
As shown in Figs. 3 and 4 of the drawings, conven-tional pipe plugs or other suitable closures designated 68 are screw threaded in the bottom portion 30 of the drain troughs 26 and these plugs 68 when removed provide an access opening through which a wrench may be inserted for gaining access to the heads of the bolts 46 when it is desired to secure or release the collector electrodes 48 relative to the connector plates 42 as hereinbefore described.
As shown best in Figs. 2 and 4 of the drawings, the base of the invention is provided with a plurality of collector trough assemblies 70. These trough assemblies are generally circular and correspond with the circular cross section of the collector electrodes 48. These trough assemblies are slightly wider than the collector electrodes 48 as shown in Fig. 4 of the drawings, so that water draining down along opposite side sur~aces of the collector electrodes will drain into the channel shaped structure of the collector trough assemblies 70.
Each assembly 70, although generally circular, is composed of a plurality of sections which are abuted to the sides 34 and 36 of the drain troughs 26 and welded thereto so as to form a seal relative to said s~des 34 and 36 and thus several arcuate sections of channel shaped structure are required to form each circular collector trough assembly 70.
As shown in Fig. 4 of the drawings, each collector -~ trough assembly is generally U-shaped in cross section and provided with a bottom portion 72 with integral upwardly extending opposite sides 74 and 76 which ha~e upper edges terminating on a common plane with the upper edges 38 and 40 of the drain troughs 26 as shown best in Fig~ 3. These collector trough assemblies at their portions which abut the sides 34 317~3 and 36 of the drain troughs 26 are welded thereto and, as shown in Fig. 3 of the drawings, water receiving openin~s 78and 80 are provided in opposite sides 34 and 36 of the respective drain trough 26 for receiving water from the arcuate sections of the collector trough assemblies 70. As shown in Fig. 3 of the drawings, weld structures 82 provide for structural connection and sealing of the sections of the drain collector trough assemblies 70 relative to the sides of the drain troughs 26.
Secured to each arcuate section of each collector trough assembly is a corresponding venturi structure 84. These venturi sections 84 extend between the drain troughs 26 and are of a cross section shown best in Fig. 4 of the drawings.
They are generally U-shaped but are provided with opposed concavo-convex sections 86 and 88 and are integral at an inter-mediate portion 90 which forms a receiving edge portion for pneumatic fluid flowing in a direction of the arrow A in Fig. 4 of the drawings. The outer surfaces of the walls 86 and 88 are convex and respective upper edges 90 and 92 of the concavo-convex walls are secured to the collector trough sections by means of r~vets or other suitable connection means.
Thus a venturi structure 86 is secured to each of the arcuate sections of each generally circular collector trough assemblies 70.
It will be seen that adjacent walls 86 and 88 of adjacent ventuxi structures 84 form a generally arcuate venturi comprising conveX~in~ diverging aerodynamic structure which provides an ;~nlet for air passing in the direction of the arrow A to ad;acent facing surfaces of a pair of the collector electrodes 48 so that laminar ~low is induced along these suraces as the air passes between the respective venturi structure walls 86 and 88.
.
7~
It will be seen that all of the venturi structures 84 are on a common plane and that the receiving edges 90 thereof are all on a common plane so as to provide for uniformity of aerodynamic structure as well as coordination of the convex portions to provide for efficient venturi operation.
The innermost collector trough designated 96 in Fig. 4 of the drawings is coupled to the central hub portion 28 and secured to this collector trough portion 96 is a half section venturi furring 98. These sections are relatively short since they are close to the center of the base structure and disposed between the radially disposed drain troughs 26.
They form complemental portions relative to the adjacent sides 86 of the venturi structures 84 hereinbefore described. Like-wise, a venturi half section furring structure 100 is disposed adjacent an outermost collector trough which is designated 102 and which is adjacent to the outer most circular wall portion 22 of the base structure 18. Likewise this furring 100 is provided with a convex surface 104 which corresponds to the convex surface 86 of one of the venturi structures 84 2Q hereinbefore described.
It will be obvious to those skilled in the art that the various venturi structures hereinbefore described are all disposed on a substantially corresponding horizontal plane and that all of the lower ends of the collector electrodes 48 are disposed on a substantially common plane and the structural support as well as the water drain features of the base are all integrated with the aerodynamic functions and these features all provide for a very compact, strong base structure which is nominal in its ele~ation dimension and which is specifically adapted for use in supporting a plurality of concentric spaced apart circular in cross section collector electrodes of an electrostatic precipitator~ It will be seen .~
~ 8 .
that the venturi structures 84 direct flow between the respective collector electrodes and that discharge electrodes 106 as shown in Fig. 1 of the drawings are disposed between the respec~ive collector electrodes 48 in the air flow path above the respective venturi structures 84.
It will be obvious to those skilled in the art that various modifications may be resorted to without departing from the spirit of the invention.
PRIOR ART
United States patent 3,742,681 is believed to be the most pertinent prior art relating to the subject matter of this application.
BACKGROUND OF THE INVENTION
Prior art electrostatic precipitators wherein there are concentric spaced apart generally circular in cross section cylindrical electrode structures have been provided with supporting base elements for carrying the collector electrodes of electrostatic precipitators and in the construction of supporting bases for collector electrodes it has been a problem to properly assemble drain troughs as well as collector troughs and also inlet venturi structures all within a reasonable elevation and so as to provide for uniformity of structure as well as efficient aerodynamic operation thereof.
SUMMARY OF THE INVENTION
The present invention relates to a collector electrode supporting base means for electrostatic precipitators and this base means comprises a plurality of generally circular collector trough assemblies which intersect radially disposed drain trough assemblies which extend from a central portion of the base to a peripheral generally circular frame structure.
The generally circular collector trough assemblies are composed of a plurality of arcuate sections disposed between the radially disposed drain troughs so that all of the trough structures may be substantially flush with each other on a horizontal plane at which lower edge portions of generally circular in cross section hollow cylindrical collector electrodes are supported. The arcuate sections of the collector trough assemblies are disposed below lower edges of the generally circular in cross section collector electrodes and aerodynamic venturi structures are connected to the collector trough ~ ~t~ 7 ~ ~
assemblies on a substantially common plane so that uniform aerodynamic flow functions may be accomplished throughout the entire inlet area of the base in order to provide substantially laminar flow of pneumatic fluids vertically relative to the generally vertical surfaces of the collector electrodes. The drain trough portions of the electrode base of the invention are radially disposed and are substantially U-shaped in cross section and are provided with openings in opposite sides thereof which communicate with the bottom portions of arcuate collector troughs which are disposed between the radially directed drain troughs. Coupler means on the drain troughs provide for hold down means such as bolts or the like for securing lower edges of the collector electrodes onto the upper surface of the base and this upper surface is substantially on a common plane with all of the collector trough assemblies and the drain trough structures on a common hor~zontal plane. Thus aerodynamic venturi structures secured to the collector trough asse~blies are disposed between the radially directed drain troughs and all of the aerodynamic functions of the venturi structures occur on a common plane so as to provide for uniform pneumatic flow characteristics of the fluids passing through the venturi structures and into laminar flow relationship with the wet wall surfaces of the collector electrodes. The base structure of the invention is primarily a support for wet wall collector electrodes of generally circular in cross section and the base functions to provide for water collection from the lower edges of the collector electrodes and the draining ; of this water to a disposal area so that contaminants contained in the water may be properly collected and conducted to a suitable sump or other area as desired.
Accordin~ly, it is an object of the invention to provide a novel collector electrode support~ng base means L78~3 for electrostatic precipitators which provides for desirable water collection and drain functions as well as a uniform support for aerodynamic venturies at the inlet edges of the collector electrodes and further to provide structural support for the collector electrodes which is rigid and will maintain accurate spaced relationship of the electrodes as well as axial alignment thereof.
Another object of the invention is to provide a base for collector electrodes of an electrostatic precipitator which is very rigid in proportion to the structural arrangement thereof and which is also very compact in vertical dimensions when used as a combined structural support, water drain means and aerody-namic venturi supporting structure.
Another object of the invention is to provide a collector electrode supporting base for electrostatic precipitators having novel means for securing the lower edges of collector electrodes thereto and for the access of a suitable wrench for engaging bolts which secure lower portions of the collector electrodes to the base.
Thus, in accordance with the present teachings, an electrode support base means for electrostatic precipitators is provided which comprises a plurality of generally circular collector trough assemblies with the collector trough assemblies each of a different diameter and radially spaced apart from an adjacent one of the trough assemblies. Each collector trough assembly is a generally U-shape in cross section structure. Support means are provided for supporting a generally circular in cross section cylindrical electrostatic collector electrode above the collector trough assembly. The base has a central generally vertical axis which is concentric with the generally circular trough collector assemblies with the base having a plurality of radially disposed 17~3 drain trough structures which have inner ends adjacent the axis, the drain trough structures have outer ends spaced radially from the inner ends with a generally circular wall structure supporting the outer ends of the drain trough structures. The circular collector trough assemblies intersect the radially dis-posed trough structures with the collector trough assemblies com-municating with the drain trough structures for draining liquid from the collector trough assemblies into the drain trough structures. A liquid outlet is provided communicating with the drain trough structures and the outlet projecting beyond the circular wall structure.
Further objects and advantages of the invention may be apparent from the following specification, appended claims and accompanying drawings~
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a fragmentary side elevational view of an electrostatic precipitator showing portions thereof broken away and in section and illustrating a collector electrode supporting base means of the invention therein;
Fig. 2 is an enlarged fragmentary plan sectional view taken from the line 2-2 of Fig. l;
Fig. 3 is an enlarged fragmentary sectional view taken from the line 3-3 of Fig. 2; and Fig. 4 is an enlarged fragmentary sectional view ; -3a-taken from the line 4-4 of Fig. 2 showing portions further broken away and in section to amplify the illustration.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The electrostatic precipitator, as shown in Fig. 1 of the drawings, is provided with a housing 10 having a tangential air inlet 12 wherein straightening vanes 14 direct pneumatic flow upwardly in a generally axial direction as indicated by an arrow A in Fig. 1 of the drawings.
Supported on the housing 10 by means of a flange structure 16 is a collector electrode supporting base 18. This base 18 is provided with a flange 20 which is an annular peripher-al flange matching the annular peripheral flange 16 and these flanges are bolted together by bolts 22, all as shown best in Fig. 1 of the drawings.
The electrode base 18 is provided with a generally circular peripheral wall 22 made of structural steel or the like, welded or otherwise secured to an inner surface 24 of the wall 22 are radially disposed drain troughs 26. These drain troughs 26 are U-shaped in cross section as shown ln Fig. 3 of the drawings and extend radially inward from the surface 24 o~
the wall 22 to a central hollow cyllndrical hub portion 28 to which the drain troughs 26 are welded or otherwise suitably secured. As shown best in Fig. 4 Of the drawings, a bottom portion 30 of each drain trough 26 is declined from the central hub portion 28 to the outer circular wall portion 22 so that water wil~ drain toward the wall 22 and outward through a suitable outlet fitting 32 which may be properly screw threaded to receive a con~entional plumbing drain fixture or the like.
Each drain trough 26, as shown in cross section in Fig. 3 of t~e dràwings is provided with opposlte up~axdly extending side portions 34 and 36 which are integr~l with the bottom portion 30 thereo~. WeIded to and connect~ng between the upper edge "' ~ ,3 ~ 4 -portions 38 and 40 of the respective side portions 34 and 36 are fixture receiving plates 42 having openings 44 therein.
These openings 44 receive bolts or cap screws 46 which are screw threaded into internally screw threaded portions of collector electrodes 48.
It will be seen that the connector plates 42 are all substantially flush with the upper edges 38 and 40 of the drain troughs 26 and that these plates 42, as shown in Fig. 4 of the drawings, are all disposed on a substantially horizontal plane relative to each other, this plane being at the upper edges 38 and 40 of the drain troughs 26 and at the inlet edges of the collector electrodes 48.
Secured in flush relationship with the upper edge 50 of the base wall structure 22 is an arcuate L-shaped in cross section angle member 52 which extends between each of the radially disposed drain troughs 26 and suitable open-ings 54 are provided in this member 52 for receiving bolts such as the bolt 46 shown in Fig. 3 of the drawings for holding the outermost collector electrode 48 securely in position on the base 18.
The central hub portion 28 of the base 18 is provided with an upper end plate 54 wh~ch is generally circular and provided with an extending flange portion 56 having openings 58 there~n adapted to receive bolts such as the bolts 46 for holdin~ the innermost one of the collector electrodes 48.
A lower end portion 60 of the hub portion 28 is adapted to fit into a hollow tubular member 62 which extends upward through the housing 10 but which is no part of the base structure. The top portion 54 of the hub 28 is provided with an openin~ 64 through which a conduit 66 extends. This conduit 66 is no part of the invention relative 78~
to the base structure.
As shown in Figs. 3 and 4 of the drawings, conven-tional pipe plugs or other suitable closures designated 68 are screw threaded in the bottom portion 30 of the drain troughs 26 and these plugs 68 when removed provide an access opening through which a wrench may be inserted for gaining access to the heads of the bolts 46 when it is desired to secure or release the collector electrodes 48 relative to the connector plates 42 as hereinbefore described.
As shown best in Figs. 2 and 4 of the drawings, the base of the invention is provided with a plurality of collector trough assemblies 70. These trough assemblies are generally circular and correspond with the circular cross section of the collector electrodes 48. These trough assemblies are slightly wider than the collector electrodes 48 as shown in Fig. 4 of the drawings, so that water draining down along opposite side sur~aces of the collector electrodes will drain into the channel shaped structure of the collector trough assemblies 70.
Each assembly 70, although generally circular, is composed of a plurality of sections which are abuted to the sides 34 and 36 of the drain troughs 26 and welded thereto so as to form a seal relative to said s~des 34 and 36 and thus several arcuate sections of channel shaped structure are required to form each circular collector trough assembly 70.
As shown in Fig. 4 of the drawings, each collector -~ trough assembly is generally U-shaped in cross section and provided with a bottom portion 72 with integral upwardly extending opposite sides 74 and 76 which ha~e upper edges terminating on a common plane with the upper edges 38 and 40 of the drain troughs 26 as shown best in Fig~ 3. These collector trough assemblies at their portions which abut the sides 34 317~3 and 36 of the drain troughs 26 are welded thereto and, as shown in Fig. 3 of the drawings, water receiving openin~s 78and 80 are provided in opposite sides 34 and 36 of the respective drain trough 26 for receiving water from the arcuate sections of the collector trough assemblies 70. As shown in Fig. 3 of the drawings, weld structures 82 provide for structural connection and sealing of the sections of the drain collector trough assemblies 70 relative to the sides of the drain troughs 26.
Secured to each arcuate section of each collector trough assembly is a corresponding venturi structure 84. These venturi sections 84 extend between the drain troughs 26 and are of a cross section shown best in Fig. 4 of the drawings.
They are generally U-shaped but are provided with opposed concavo-convex sections 86 and 88 and are integral at an inter-mediate portion 90 which forms a receiving edge portion for pneumatic fluid flowing in a direction of the arrow A in Fig. 4 of the drawings. The outer surfaces of the walls 86 and 88 are convex and respective upper edges 90 and 92 of the concavo-convex walls are secured to the collector trough sections by means of r~vets or other suitable connection means.
Thus a venturi structure 86 is secured to each of the arcuate sections of each generally circular collector trough assemblies 70.
It will be seen that adjacent walls 86 and 88 of adjacent ventuxi structures 84 form a generally arcuate venturi comprising conveX~in~ diverging aerodynamic structure which provides an ;~nlet for air passing in the direction of the arrow A to ad;acent facing surfaces of a pair of the collector electrodes 48 so that laminar ~low is induced along these suraces as the air passes between the respective venturi structure walls 86 and 88.
.
7~
It will be seen that all of the venturi structures 84 are on a common plane and that the receiving edges 90 thereof are all on a common plane so as to provide for uniformity of aerodynamic structure as well as coordination of the convex portions to provide for efficient venturi operation.
The innermost collector trough designated 96 in Fig. 4 of the drawings is coupled to the central hub portion 28 and secured to this collector trough portion 96 is a half section venturi furring 98. These sections are relatively short since they are close to the center of the base structure and disposed between the radially disposed drain troughs 26.
They form complemental portions relative to the adjacent sides 86 of the venturi structures 84 hereinbefore described. Like-wise, a venturi half section furring structure 100 is disposed adjacent an outermost collector trough which is designated 102 and which is adjacent to the outer most circular wall portion 22 of the base structure 18. Likewise this furring 100 is provided with a convex surface 104 which corresponds to the convex surface 86 of one of the venturi structures 84 2Q hereinbefore described.
It will be obvious to those skilled in the art that the various venturi structures hereinbefore described are all disposed on a substantially corresponding horizontal plane and that all of the lower ends of the collector electrodes 48 are disposed on a substantially common plane and the structural support as well as the water drain features of the base are all integrated with the aerodynamic functions and these features all provide for a very compact, strong base structure which is nominal in its ele~ation dimension and which is specifically adapted for use in supporting a plurality of concentric spaced apart circular in cross section collector electrodes of an electrostatic precipitator~ It will be seen .~
~ 8 .
that the venturi structures 84 direct flow between the respective collector electrodes and that discharge electrodes 106 as shown in Fig. 1 of the drawings are disposed between the respec~ive collector electrodes 48 in the air flow path above the respective venturi structures 84.
It will be obvious to those skilled in the art that various modifications may be resorted to without departing from the spirit of the invention.
Claims (18)
1. An electrode supporting base means for electrostatic precipitators comprising: a plurality of general-ly circular collector trough assemblies; said collector trough assemblies each of a different diameter and radially spaced apart from an adjacent one of said trough assemblies; each collector trough assembly being a generally U-shaped in cross section structure; support means for supporting a generally circular in cross section cylindrical electrostatic collector electrode above said collector trough assembly; said base having a central generally vertical axis concentric with said generally circular trough collector assemblies; said base having a plurality of radially disposed drain trough structures having inner ends adjacent said axis; said drain trough structures having outer ends spaced radially from said inner ends; a generally circular wall structure supporting said outer ends of said drain trough structures; said circular collector trough assemblies intersecting said radially disposed trough structures; said collector trough assemblies communicating with said drain trough structures for draining liquid from said collector trough assemblies into said drain trough structures;
and a liquid outlet communicating with said drain trough structures and said outlet projecting beyond said circular wall structure.
and a liquid outlet communicating with said drain trough structures and said outlet projecting beyond said circular wall structure.
2. The invention as defined in Claim 1, wherein:
said generally circular collector trough assemblies each com-prise a plurality of arcuate sections disposed between adjacent ones of said radially disposed drain trough structures; said drain trough structures being generally U-shaped in cross section and having a bottom portion and integral opposite upstanding sides; said drain trough structure having openings in said upstanding sides which openings communi-cate with respective arcuate sections of said collector trough assemblies.
said generally circular collector trough assemblies each com-prise a plurality of arcuate sections disposed between adjacent ones of said radially disposed drain trough structures; said drain trough structures being generally U-shaped in cross section and having a bottom portion and integral opposite upstanding sides; said drain trough structure having openings in said upstanding sides which openings communi-cate with respective arcuate sections of said collector trough assemblies.
3. The invention as defined in Claim 2, wherein:
said collector trough assemblies and said drain trough assemblies are provided with upper portions which are substantially flush with each other and disposed on a substantially horizontal plane; collector electrode mounting plates fixed to upper portions of said drain trough structures in alignment with said arcuate sections of said collector trough assemblies.
said collector trough assemblies and said drain trough assemblies are provided with upper portions which are substantially flush with each other and disposed on a substantially horizontal plane; collector electrode mounting plates fixed to upper portions of said drain trough structures in alignment with said arcuate sections of said collector trough assemblies.
4. The invention as defined in Claim 2, wherein:
said support means comprises collector electrode mounting plates carried on said drain trough assemblies; each of said plates having a bolt receiving opening therethrough; and openable access openings in the bottom portions of each said drain trough structures whereby a wrench may be inserted through any one of said access openings for tightening a bolt in one of said bolt receiving openings and relative to a collector electrode disposed and supported on said mounting plates.
said support means comprises collector electrode mounting plates carried on said drain trough assemblies; each of said plates having a bolt receiving opening therethrough; and openable access openings in the bottom portions of each said drain trough structures whereby a wrench may be inserted through any one of said access openings for tightening a bolt in one of said bolt receiving openings and relative to a collector electrode disposed and supported on said mounting plates.
5. The invention as defined in Claim 1, wherein:
said bottom portions of said drain trough structures being declined from an area adjacent said axis to said outer end at said circular wall structure.
said bottom portions of said drain trough structures being declined from an area adjacent said axis to said outer end at said circular wall structure.
6. The invention as defined in Claim 1, wherein:
arcuate venturi component structures are secured to said collector trough assemblies; each venturi component structure being generally U-shaped in cross section with opposed generally convex outer side walls; said side walls of each U-shaped venturi component structure straddling one of said collector troughs whereby said convex walls of radially adjacent venturi component structures are disposed to form a converging diverg-ing venturi passage therebetween.
arcuate venturi component structures are secured to said collector trough assemblies; each venturi component structure being generally U-shaped in cross section with opposed generally convex outer side walls; said side walls of each U-shaped venturi component structure straddling one of said collector troughs whereby said convex walls of radially adjacent venturi component structures are disposed to form a converging diverg-ing venturi passage therebetween.
7. The invention as defined in Claim 6, wherein:
said arcuate venturi component structures having opposite ends generally abutting respective radially disposed drain trough structures.
said arcuate venturi component structures having opposite ends generally abutting respective radially disposed drain trough structures.
8. The invention as defined in Claim 1, wherein:
said base is provided with a central tubular member forming a hub to which said inner ends of said drain trough structures are fixed.
said base is provided with a central tubular member forming a hub to which said inner ends of said drain trough structures are fixed.
9. The invention as defined in Claim 4 wherein:
said openable access openings include pipe plugs screw threaded in said bottom portion of said drain trough.
said openable access openings include pipe plugs screw threaded in said bottom portion of said drain trough.
10. The invention as defined in Claim 1, wherein:
said drain troughs are of greater vertical depth than said collector troughs; said drain troughs and said circular wall structures thus providing substantial structural rigidity of said base.
said drain troughs are of greater vertical depth than said collector troughs; said drain troughs and said circular wall structures thus providing substantial structural rigidity of said base.
11. The invention as defined in Claim 6, wherein:
said base is provided with a central tubular hub portion;
collector trough assemblies adjacent said central tubular member and said circular wall respectively; a first generally convex venturi half-section adjacent said tubular member; and a second generally convex venturi half-section adjacent said circular wall structure; said venturi half-sections cooperable with respective adjacent ones of said venturi component structures.
said base is provided with a central tubular hub portion;
collector trough assemblies adjacent said central tubular member and said circular wall respectively; a first generally convex venturi half-section adjacent said tubular member; and a second generally convex venturi half-section adjacent said circular wall structure; said venturi half-sections cooperable with respective adjacent ones of said venturi component structures.
12. The invention as defined in Claim 6, wherein:
said U-shaped venturi component structures each having an aerodynamic flow receiving edge portion which is disposed intermediate said convex sides; said flow receiving edge of each venturi component structure being below a respective collector trough structure and directed downwardly to receive pneumatic fluid flow in an upward direction.
said U-shaped venturi component structures each having an aerodynamic flow receiving edge portion which is disposed intermediate said convex sides; said flow receiving edge of each venturi component structure being below a respective collector trough structure and directed downwardly to receive pneumatic fluid flow in an upward direction.
13. The invention as defined in Claim 1, wherein:
collector electrodes are supported on said base; said collector electrodes, said collector trough assemblies and said drain trough assemblies all having uppermost portions disposed on a substantially common horizontal plane.
collector electrodes are supported on said base; said collector electrodes, said collector trough assemblies and said drain trough assemblies all having uppermost portions disposed on a substantially common horizontal plane.
14. The invention as defined in Claim 13, wherein:
said generally circular collector trough assemblies are each provided with a plurality of arcuate sections disposed between adjacent ones of said radially disposed drain trough structures;
said drain trough structures being generally U-shaped and having a bottom with integral opposite upstanding sides; said drain trough structures having openings in said upstanding sides which openings communicate with respective arcuate sections of said collector trough assemblies.
said generally circular collector trough assemblies are each provided with a plurality of arcuate sections disposed between adjacent ones of said radially disposed drain trough structures;
said drain trough structures being generally U-shaped and having a bottom with integral opposite upstanding sides; said drain trough structures having openings in said upstanding sides which openings communicate with respective arcuate sections of said collector trough assemblies.
15. The invention as defined in Claim 14, wherein:
said bottom portions of said drain trough structures being declined from an area adjacent said axis to said outer ends at said circular wall structure.
said bottom portions of said drain trough structures being declined from an area adjacent said axis to said outer ends at said circular wall structure.
16. The invention as defined in Claim 13, wherein:
arcuate venturi component structures are secured to said collector trough assemblies; each venturi component structure being generally U-shaped with opposed generally convex outer side walls; said side walls of each U-shaped venturi component structure straddling one of said U-shaped collector troughs, whereby said convex walls, of radially adjacent venturi component structures are disposed to form a converging diverg-ing venturi passage therebetween.
arcuate venturi component structures are secured to said collector trough assemblies; each venturi component structure being generally U-shaped with opposed generally convex outer side walls; said side walls of each U-shaped venturi component structure straddling one of said U-shaped collector troughs, whereby said convex walls, of radially adjacent venturi component structures are disposed to form a converging diverg-ing venturi passage therebetween.
17. The invention as defined in Claim 13, wherein:
collector electrodes are mounted on said base and said collector electrodes are provided with upper edges, all being substantially on the same plane.
collector electrodes are mounted on said base and said collector electrodes are provided with upper edges, all being substantially on the same plane.
18. The invention as defined in Claim 4, wherein:
a plurality of collector electrodes are provided with lower portions each having internally screw threaded portions; and bolts screw threaded therein and extending through said bolt receiving openings.
a plurality of collector electrodes are provided with lower portions each having internally screw threaded portions; and bolts screw threaded therein and extending through said bolt receiving openings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58822475A | 1975-06-19 | 1975-06-19 | |
| US588,224 | 1975-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1101788A true CA1101788A (en) | 1981-05-26 |
Family
ID=24352991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA252,761A Expired CA1101788A (en) | 1975-06-19 | 1976-05-18 | Electrode supporting base means for electrostatic precipitators |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS602106B2 (en) |
| CA (1) | CA1101788A (en) |
| DE (1) | DE2627403C2 (en) |
| FR (1) | FR2314767A1 (en) |
| GB (1) | GB1529505A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3244397A1 (en) * | 1982-12-01 | 1984-06-07 | Klöckner-Humboldt-Deutz AG, 5000 Köln | ELECTROSTATIC DUST SEPARATOR |
| CN104437866A (en) * | 2014-11-03 | 2015-03-25 | 福建省沃特宝环保科技有限公司 | Purification dust remover |
| US12006591B2 (en) | 2020-03-02 | 2024-06-11 | Ii-Vi Advanced Materials, Llc | Method for preparing an aluminum doped silicon carbide crystal by providing a compound including aluminum and oxygen in a capsule comprised of a first and second material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1371995A (en) * | 1920-12-10 | 1921-03-15 | Arthur F Nesbit | Art of electrical precipitation |
| US3315444A (en) * | 1964-05-01 | 1967-04-25 | Electronatom Corp | Integrated mechanical filter and electrostatic precipitator system for broad spectrum purification |
| US3856476A (en) * | 1968-04-24 | 1974-12-24 | Seversky Electronatom Corp | High velocity wet electrostatic precipitation for removing gaseous and particulate contaminants |
| US3742681A (en) * | 1972-07-25 | 1973-07-03 | Seversky Electronatom Corp | Liquid distributors for wet electrostatic precipitators |
-
1976
- 1976-05-10 GB GB1915276A patent/GB1529505A/en not_active Expired
- 1976-05-18 CA CA252,761A patent/CA1101788A/en not_active Expired
- 1976-06-16 FR FR7618286A patent/FR2314767A1/en not_active Withdrawn
- 1976-06-18 JP JP51072098A patent/JPS602106B2/en not_active Expired
- 1976-06-18 DE DE19762627403 patent/DE2627403C2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1529505A (en) | 1978-10-25 |
| DE2627403C2 (en) | 1983-01-13 |
| FR2314767A1 (en) | 1977-01-14 |
| JPS521774A (en) | 1977-01-07 |
| JPS602106B2 (en) | 1985-01-19 |
| DE2627403A1 (en) | 1976-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |