EP1308212A2 - Nasselektrofilter - Google Patents
Nasselektrofilter Download PDFInfo
- Publication number
- EP1308212A2 EP1308212A2 EP02024172A EP02024172A EP1308212A2 EP 1308212 A2 EP1308212 A2 EP 1308212A2 EP 02024172 A EP02024172 A EP 02024172A EP 02024172 A EP02024172 A EP 02024172A EP 1308212 A2 EP1308212 A2 EP 1308212A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipes
- rain
- plate
- wet electrostatic
- rain pipes
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/86—Electrode-carrying means
-
- 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
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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
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
-
- 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
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/53—Liquid, or liquid-film, electrodes
Definitions
- the invention relates to a wet electrostatic precipitator, in particular for separation of sulfur oxides and dusts from exhaust gases, consisting of several Rain pipes equipped with earthing means, the Rain pipes at least on one end openings in the Have pipe interior and designed to be suspended in a receiving device is.
- wet electrostatic precipitators are preferred for use in flue gas systems Separate sulfur oxides and dusts from the exhaust gases.
- the wet electrostatic precipitators consist of a bundle of preferably Plastic pipes through suitable sleeves and guide rings being held.
- An electrode runs in the middle of each tube, whereby in the operation of the filter the inner walls of the pipes with a flowing electrical conductive washing liquid and between the electrode and a strong electric field is formed on the wall of the tube.
- the exhaust gases are ionized, making them electrical be charged and following the electrical field lines to the pipe walls hike.
- There the loaded exhaust gas particles are washed by a washing liquid recorded and transported to the outside via the pipe ends. Due to the high electrical field, it is to avoid electrical Breakdowns required that the pipes are grounded.
- the known solutions for fastening the rain pipes go for example from a support ring, which is also attached to the outside Pipes is welded.
- the middle area of the tube bundle is accordingly insufficient due to the mutual support available secured against changing loads, so that the Rain tube bundle damage can occur.
- the individual rain pipes are spaced to the extent that additional cross struts can be used between the rain pipes can. This, however, reduces the effective cross-section that can be used.
- the invention has for its object a simple cross-section to demonstrate a homogeneous earthing system, which reduces the risk of Excludes transport damage or inspection damage and allows a repair through a relining tube. Furthermore, the invention is the The task is to attach a rain tube bundle to show what the risk of transport damage or inspection damage largely excludes and also a large free cross section of the precipitation tube bundle is available.
- the invention to solve the first-mentioned object, it is provided that several individual earthing elements are provided, which are distributed around the circumference the rain pipes are arranged and in the existing breakthroughs protrude, the arranged in the middle of the rain pipes Earthing elements at least two adjacent rain pipes Connect them electrically.
- the grounding elements can be on one end side, preferably on both End sides, be arranged, the grounding elements to the shape of the Breakthroughs are adjusted in height and width to the extent that the Breakthrough is almost completely closed.
- the Breakthroughs of Rain pipes are located in the cylinder surface at 60 ° each offset to each other and preferably extend to the front of the rain pipes.
- the earthing system consists of individual earthing elements made of round or polygonal earthing connectors, which in the existing breakthroughs of the rain pipes protrude and are electrically connected together.
- a single one Earthing connector can advantageously in the middle of the Rain pipes two or possibly three pipes electrically conductive with each other connect.
- the rain tube bundle is preferably installed in the Form that initially individual rain pipes through an upper support plate and a lower guide plate assembled into a bundle and welded with one or more guide plates in Dependence on the length of the precipitation tube bundle in the middle area be used. It is advantageous here that the individual tube bundles are made of protrude the upper support plate and lower guide plate if necessary and have a short protrusion, which has the necessary breakthroughs for the grounding elements in which the grounding elements between the individual rain pipes. This can at least in upper area of the precipitation tube bundle or in the lower Area happen.
- the earthing elements preferably consist of round or polygonal, for example approximately triangular, ground connectors, the edge surface of the grounding elements three concave partial surfaces have, which in the corresponding breakthroughs of the rain pipes protrude and thus a large earth connection within the Form precipitation tube.
- the concave protruding into the breakthroughs Partial surfaces of the earthing elements can be flush with the inner surface or be arranged backwards.
- the earthing elements are preferably made Made of pressed carbon (graphite), which is an excellent electrical Has conductivity. Alternatively, there is the possibility that a carrier material is coated with carbon.
- two neighboring ones Earthing connector through one or more electrically conductive connection strips preferably carbon strips, carbon rods or composite strips from a homogeneous carbon layer with a chemical and thermally resistant carrier layer or a compact carrier layer with a C-fiber reinforced matrix made of carbon or fluoroplastic, are connected, the connecting strips in incisions of the grounding elements are held jammed or the carbon rods over Earth gravity form the contact.
- the carbon or graphite used has excellent electrical properties on the one hand and is on the other hand, homogeneous and flexible, while the connecting strips for permanent bending strength are designed so that the connecting strips break be avoided.
- the connecting strips are in a first embodiment of the earthing system for the electrically conductive connection of individual Grounding elements are provided, with at least one or more connecting strips two adjacent earthing elements with each other can connect.
- the connecting strips are cut into Earthing elements are held clampable and thus lead to a safe Contacting.
- the end plate can be made of a carrier material and an elastically glued carbon layer, so that also with Sufficient step resistance is given for subsequent ascents.
- the particular advantage of the execution of an earthing system according to the invention is that a repair of broken rain pipes inside a tube bundle in the installed state if necessary can be.
- a repair may be necessary, for example, if due to overheating due to electrical breakdown hot flue gas strands are formed within the rain tube.
- Reliningrohr there is the possibility that a defective pipe through a to repair so-called Reliningrohr, the Reliningrohr in the existing pipe can simply be inserted and corresponding Breakthroughs for the grounding elements.
- the grounding elements can in the event of repairs with earthing elements adapted to the relining tube longer, protruding protrusions are replaced.
- the grounding elements consist of an electrically suffering end plate, the concave corresponding to the breakthroughs of the rain pipes have trained projections.
- This version is based on individual Grounding elements are dispensed with and instead an electrically conductive end plate used by trained appropriately concave Protrusions protrude directly into the openings in the rain pipes and thus ensure adequate grounding.
- Similar to the grounding elements are the projections to the dimensions of the Breakthroughs adjusted so that they are almost completely closed and due to their concave formation, a flush degree form inside the rain tube.
- the end plate can be made from a carrier material and an elastically glued carbon layer exist, with the carbon layer facing the rain pipes, or else it can advantageously be avoided by grounding alone Damage to a sandwich construction can be used, which is an end plate with a middle carbon layer and two outer carrier layers having.
- This embodiment is characterized by particularly high Kicking properties and enables repeated walking on the Rain tube bundle without the corresponding damage can occur.
- the end plate is constructed so that the space between the individual rain pipes is completely covered while on the other hand, the clear opening width of the rain pipes through appropriate Holes are kept clear so that the flue gases are led through can.
- the rain pipes themselves can consist of round pipes that are combined to form a structure that is as compact as possible.
- the Rain pipes are connected at least to an upper support plate that breakthroughs corresponding to the precipitation pipes and has a flange collar which in a support frame and / or housing can be attached.
- the total weight of the tube bundle absorbs and also with the appropriate dimensioning the forces in Introduce the existing housing or the support frame directly can, and also additional forces caused by walking through the rain tube bundle may occur.
- the individual rain pipes are connected to the support plate is a self-supporting Construction created, the tube walls by welding are supported. The load to be absorbed is therefore not Rainpipe transferred to rainpipe, but total of the support plate and the individual rain tube are merely connected to it individually so that the rain pipes in the intended Position held securely and also no additional burden are exposed.
- a second upper support plate is present is preferably at a distance of about 300 to 500 mm to the first Support plate is arranged and also connected to the rain pipes, welded, for example.
- the second support plate which however the upper one is not cantilevered on the support frame and housing End area of the rain pipes used for stiffening, the individual rain pipes and the two spaced support plates have a construction-reinforcing effect and function as a double T-beam fulfill, so that an extremely high inherent stability is achieved.
- the upper first and second support plate with the Rain pipes welded.
- the rain pipes against the top first Protrude support plate lock flush or reset and with connected to the support plate, for example welded.
- the precipitation pipes compared to the upper one Support plate there is the possibility of a flat or obtuse-angled welding depending on the necessary arrangement.
- the invention provided that several along the rain pipes Guide plates are arranged, the distance between them is determined by spacer bars with the guide plates facing the rain pipes have increased breakthrough, so that sufficient play is present and therefore no tension between the guide plates and the rain pipes can arise.
- the guide plates are several spacer bars in the tube bundle distributed between the rain pipes.
- locking elements for example Pawls and recesses welded to the rain pipes in the openings of the guide plate, which are provided for provide sufficient hold and allow enough room for movement.
- a preferably parallel one above the first support plate End plate is attached and screwed to the first support plate, whereby the end plate as well as the support plate for the rain pipes has aligned breakthroughs, which rounded off to the outside are executed.
- the upper end plate is practically on the support plate attached and is screwed to it, so that with a possible Do not inspect the supporting plate underneath and the rain pipes can be damaged.
- the openings of the end plate somewhat larger than the inner areas of the rain pipes, so that at least the end plate on the end faces of the rain pipes partially rests.
- the Rain pipes in the lower area have at least one flange piece, that opposite the face of the rain pipes by the plate thickness a lower clamping plate set back and with the rain pipes connected, for example welded.
- the provided Flange pieces are directly with the ends of the rain pipes connected, for example welded, and further serve for suspension and stabilization of the lower end plate by the clamping plates, the clamps used the rain pipes similar to that Pick up guide plates for positioning.
- each precipitation tube preferably only has one flange part, which are also offset within the tube bundle.
- the lower clamping plate can increase flexibility through the end plate be replaced.
- the Cleats corresponding openings to the precipitation pipes have, which are adapted to the outer dimensions of the rain pipes, so that the clamping plates can be pushed over the rain pipes and that at least one clamping plate has an enlarged breakthrough with play to the Has rain pipes.
- the second end plate points just like that first end plate has an opening which is rounded to the outside and which in in this case, however, it is adapted to the outside dimensions of the rain pipes, so that the end plate can also be pushed over the rain pipes.
- the lower clamping plate also points on the downward side Cutouts to allow further fasteners of the end plates can be taken up and in no direct contact with the Clamping plate stand.
- the aforementioned measures ensure that the rain pipes when heated by a local temperature streak are stress-free in the guide plates.
- the clamping plates and the lower end plate form an extreme flexible system, so that changes in length of the individual tubes to each other do not lead to tensioning of the entire rain tube bundle, but because of the existing plate thickness of the clamping plates and End plate these are deformable and thus length changes flexible be included.
- the End plates as a sandwich plate with an inner and outer Plastic existing plate are formed and that between the Plastic plates have an earth layer made of a carbon layer is, preferably flexible carbon (graphite) is used or Carbon webs are used.
- a carbon layer is, preferably flexible carbon (graphite) is used or Carbon webs are used.
- the manufacture of the end plates with the ground layer significantly simplified and also has the advantage that a subsequent Assembly on the finished rainwater tube bundle with a light Exchange can take place.
- a first version of the end plates provided that the ground layer at least in sections up to to the edge of the openings and is flush with the top and bottom Plastic plate closes.
- the Grounding layer formed over the entire edge area of the openings is. Both versions are due to the downward flowing Cleaning liquid ensures that adequate wetting for The rain pipes are grounded.
- the top and bottom end panels can optionally have the same or different openings. Alternatively there is the possibility that the lower and upper shown Embodiment are interchanged.
- Another embodiment of the invention provides that the end plates in Area of the existing holes additional connecting elements, for example, have rivets that are distributed around the circumference of the bores are arranged and in the case of the lower end plate in the existing Recesses of the clamping plate come to rest.
- the inventive design of a tube bundle receiving device thus enables a compact design of the rain tube bundle a large free cross section for the passage of the flue gases and thus the construction shown an improvement in efficiency.
- an upper end plate secures this in a housing or frame suspended pipe bundles to the extent that an inspection at any time without the Risk of damage can occur.
- Due to the special type of Suspension is stiffened in the upper area, which ensures is that occurring tensile or compressive stresses are largely compensated become.
- local temperature differences with a Change in length of the rain pipes through the flexibly trained Clamping plates and the lower end plate added.
- Another The new grounding system which based on a simple constructive solution a safe grounding without Allows contact problems. Existing manufacturing tolerances are in advantageously captured by an end plate that on the Rain pipes is designed to be pushed on.
- Figure 1 shows a side view of a wet electrostatic precipitator 1, which consists of there are several individual rain pipes 2.
- the precipitation pipes 2 are executed round in the embodiment shown and are by a upper support plate 3 and a lower and middle guide plate 4.7 held. On there is also one at each end of the precipitation pipes 2 End plate 5.6.
- the upper support plate 3 and the lower and middle Guide plates 4, 7 are for fastening the individual rain pipes 2 provided with each other and will be after assembly with the Rain pipes 2 either glued or welded so that one The most compact design possible.
- the upper support plate 3 is in her Diameter and also the upper end plate 5 slightly larger than that Guide plates 4.7 formed so that the entire rain tube bundle suspended in a corresponding device with a flange collar 9 can be.
- the assembly is preferably carried out in a vertical position, so that the rising smoke gases through the inner diameter of the rain pipes 2 can escape.
- the individual rain pipes 2 protrude above the upper one Support plate 3 or lower guide plate 4 and allow on the one hand the installation of the earthing system and, on the other hand, simple gluing or welding.
- FIG. 2 shows a top view of the wet electrostatic filter 1 according to the invention of the individual rain pipes 2 and the upper support plate 3 and End plate 5 can be seen. Both the carrier plate 3 and the End plate 5 each have seven holes 8, which on the Inner diameter of the individual rain pipes 2 are adjusted.
- the opposite guide plate 4 or end plate 6 is also built up so that the flue gases through the rain pipes 2 can be directed.
- Figure 3 shows in a sectional view along section line A-A Precipitation pipes 2 and the middle guide plate 7.
- FIG. 4 shows in a sectional view along section line B-B Rain pipes 2 and the lower end plate 5 with the invention Grounding system.
- an individual earthing element in the form of a Grounding element 10 is arranged, which by an opening of the Precipitation tubes 2, as can be seen particularly in FIG. 5, in the Interior protrudes and a ground contact to the inner surface of the rain pipes 2 manufactures.
- the middle grounding elements 10 each connect three adjacent precipitation pipes 2, while the outside partially connect only two precipitation pipes with each other or individual grounding elements 10 located on the edge only one Contact precipitation tube 2.
- Each individual grounding element 10 is included the adjacent grounding element 10 via a connecting strip 11 electrically connected, so that the entire grounding connector are homogeneously electrically conductively connected to one another and via corresponding Terminals can be grounded.
- An attachment can, for example, by a Screw fastening done.
- Figure 5 shows an enlarged sectional side view of the upper and lower end of a precipitation tube 2.
- the precipitation tube 2 is through the middle guide plate 7 and the upper support plate 3 and a lower one Guide plate 4 with the other precipitation tubes 2 of the wet electrostatic precipitator connected.
- a fastening between the rain pipe 2 and the support plate 3 or guide plate 4, 7 is made, for example, by a welded connection.
- the precipitation pipes 2 each have a rectangular end Breakthrough 12 in which the grounding element 10 with a concave Partial area 13 protrudes.
- the concave partial surface 13 is in this case on the inside diameter of the precipitation tube 2 adjusted so that on the inside a flush transition is created or the earthing elements slightly stand back from the inner surface of the pipe.
- each rain pipe 2 six grounding elements are arranged at the upper and lower ends which, as already stated, are connected to one another in an electrically conductive manner.
- the A particular advantage of this earthing system is that in the case of a Defect in a single rain tube 2 with no problems a little smaller relining tube can be inserted.
- an end plate consisting of a carrier material and a glued carbon layer
- the carbon layer has corresponding projections, which in the openings 12 of the Precipitation pipes 2 with concave partial surfaces flush or slight engage in a recessed manner in relation to the inner surface of the pipe.
- the end plate can also consist of a sandwich plate, the one has middle carbon layer with corresponding projections.
- FIG. 6 shows, for example, the shape of an earthing element 10, which is made of pressed carbon (graphite).
- the grounding element 10 is almost round and has an angle of 120 ° a concave partial surface 13 which is flush within the precipitation pipes 2 or lies slightly back. So with one Earthing element 10 possibly up to three precipitation tubes 2 electrically conductive be connected to each other. Are between the concave partial surfaces 13 Projections 14 formed as anti-rotation, which an incision in shape have a slot 15 for the connecting strips 11. Alternatively there is the possibility of providing a hole or another angular recess. In the event that the contacting of the individual grounding elements 10 through A cover plate 5.6 with carbon coating can also be done round earthing elements, each with three concave surface 13 without connecting strips be used.
- FIG. 7 shows such a shape of the grounding element 20, which of its The shape corresponds to the grounding element 10 from FIG. 6, but none Has slits.
- This ground connector is related to carbon-coated end plates used, which over the flat contact the electrical homogeneous connection of the individual Manufacture grounding elements 20 with each other.
- FIG. 8 shows a side view of a wet electrostatic precipitator 101, which consists of there is a plurality of individual rain pipes 102 that form a rain pipe bundle 109 are summarized.
- the rain pipes 102 are executed round in the embodiment shown and are by a first and second upper support plates 103, 104 and a plurality of guide plates 105, only one of which is shown, fixed at a distance from each other and by the upper support plates 103, 104 held. It is conceivable that instead of one round rain pipe also angular rain pipes used become.
- the upper support plate 103 is larger in diameter than that formed second support plate 104 and lies at least partially with its free End 106 on a bracket 107 of a housing or a support frame 108 on.
- the upper support plate 103 On the upper support plate 103 is a after hanging End plate placed and screwed to it, such as from of Figure 9 can be seen.
- the attachment is also carried out in the lower area a lower end plate at the pipe ends, such as from Figure 10 can be seen.
- the top and bottom end plates can, like the lightning symbols indicate, be designed as a grounding plate at the same time.
- the two upper support plates 103, 104 are welded to the rain pipe 102, so over the rain pipes 102 and support plates 103, 104 a very stable supporting structure is present.
- Figure 9 shows a sectional side view of the upper corner area between a rain pipe 102, the upper support plate 103 and an end plate 110.
- the support plate 103 is with the rain pipes 102 welded, as can be seen from a weld 111, 112, while the End plate 110 via a self-tapping screw 113, the protrudes through a bore 114 of the end plate 110 and into the upper Support plate 103 is screwed.
- Spacer 115 provided.
- the end plate 110 rests, which is designed as a sandwich plate in the exemplary embodiment shown, namely, the end plate 110 consists of a lower and upper Plastic plate 116, 117 and a middle made of graphite Grounding layer 118.
- the end plate 110 has a bore 114 through which the Bolt 113 is screwed into the support plate 103.
- the end plate 110 also points in alignment with the precipitation pipes 102 each have an opening 121, which is slightly larger than that Internal dimension of the precipitation pipes 102 is formed and one towards the outside Rounding 122 has. In the area of the breakthrough 121 is therefore due the construction of the end plate 110, the ground layer 118 to brought up to the edge of the opening 121 and generated in the case of a Wetting with a washing liquid an earth contact. alternative there is the possibility of designing the end plate 110 so that it over the rain pipes 102 can be pushed on.
- the support plate 103 can be flush with the rain pipes compared to the shown mounting position 102 may be arranged or possibly in an elevated Position, with either the welds in the face or in Corner area are formed.
- Figure 10 shows a sectional side view of the lower corner area between a rain pipe 102, two lower clamping plates 130, 139 and the end plate 131.
- the end plate 131 is again as Sandwich plate constructed and has two outer plastic plates 132, 133 that embed a middle ground layer 134.
- the attachment of the End plate 131 takes place via a screw bolt 135, which by a Bore 136 of the end plate 130 and a bore 137 of the clamping plate 130 screwed into a further bore 138 of the clamping plate 139 is.
- the end plate 131 has a plurality of openings 140, which, however, are shown in FIG adapted in this case to the outside diameter of the precipitation pipes 102 are so that the end plate 131 is pushed over the rain pipes can be.
- the end plate 131 is in the area of the opening 140 also provided with a rounding 141.
- Around the bores 136 are further holes 142 are provided, in each of which a rivet 143 is inserted is to stabilize the end plate 131 in the area of the holes 136 is provided.
- the opening 149 is somewhat larger than the opening 148, so that a game between the Clamping plate 139 and the precipitation tube 102 are formed.
- the two Clamping plates 130, 139 are screwed over in such a way in 135 clamped that they are pressed against the end faces 146, 147 and can also be used to hold the end plate 131.
- this has a triangular cutout 150 on.
- the shown earthing system draws is particularly characterized in that a subsequent installation on the Rain tube bundle 109 made and thus also a lighter Exchange of possibly damaged end plates 110, 131 is unproblematic can be carried out.
- the end plates 110 need 131 only to be screwed on at the end of assembly, causing damage excluded during transport or during assembly can be.
- the earthing system of this type stands out through the grounding layer between two plastic plates extends to the edge of the openings and thus a large area Earthing contact for each individual rain pipe 102 allows.
- Through the larger openings 140 of the lower end plate 130 can very well Manufacturing tolerances are balanced, with the design details in the the upper and lower areas are identical or, if necessary, interchanged can be.
Landscapes
- Electrostatic Separation (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
- Figur 1
- eine Seitenansicht eines Nasselektrofilters, bestehend aus mehreren zusammengefügten Niederschlagsrohren,
- Figur 2
- eine Draufsicht auf den Nasselektrofilter gemäß Figur 1,
- Figur 3
- eine geschnittene Draufsicht gemäß der Verbindungslinie A-A,
- Figur 4
- eine geschnittene Draufsicht gemäß der Verbindungslinie B-B auf eine Abschlussplatte mit erfindungsgemäßem Erdungssystem,
- Figur 5
- in einer vergrößerten Seitenansicht den Endbereich eines einzelnen Niederschlagsrohr mit oberen und unterem Erdungssystem,
- Figur 6
- ein einzelnes Erdungselement in einer Draufsicht,
- Figur 7
- ein weiteres Erdungselement ebenfalls in einer Draufsicht,
- Figur 8
- in einer Seitenansicht ein in einem Gehäuse beziehungsweise Rahmenelement eingehängtes Niederschlagsrohrbündel,
- Figur 9
- in einer geschnittenen vergrößerten Seitenansicht den oberen Eckpunkt zwischen einem Niederschlagsrohr und der Trag- und Abschlussplatte und
- Fig. 10
- in einer geschnittenen vergrößerten Seitenansicht einen unteren Eckpunkt zwischen einem Niederschlagsrohr mit unteren Klemmplatten und einer Abschlussplatte.
- 1
- Nasselektrofilter
- 2
- Niederschlagsrohr
- 3
- obere Tragplatte
- 4
- Führungsplatte
- 5
- Abschlussplatte
- 6
- Abschlussplatte
- 7
- Führungsplatte
- 8
- Bohrung
- 9
- Flanschkragen
- 10
- Erdungselement
- 11
- Verbindungsstreifen
- 12
- Durchbruch
- 13
- Teilfläche
- 14
- Vorsprung
- 15
- Einschnitt
- 20
- Erdungselement
- 101
- Nasselektrofilter
- 102
- Niederschlagsrohr
- 103
- Tragplatte
- 104
- Tragplatte
- 105
- Führungsplatte
- 106
- Ende
- 107
- Konsole
- 108
- Tragrahmen
- 109
- Niederschlagsrohrbündel
- 110
- Abschlussplatte
- 111
- Schweißnaht
- 112
- Schweißnaht
- 113
- Schraubbolzen
- 114
- Bohrung
- 115
- Distanzscheibe
- 116
- Kunststoffplatte
- 117
- Kunststoffplatte
- 118
- Erdungsschicht
- 119
- Bohrung
- 120
- Niete
- 121
- Durchbruch
- 122
- Rundung
- 130
- Klemmplatte
- 131
- Abschlussplatte
- 132
- Kunststoffplatte
- 133
- Kunststoffplatte
- 134
- Erdungsschicht
- 135
- Schraubbolzen
- 136
- Bohrung
- 137
- Bohrung
- 138
- Bohrung
- 139
- Klemmplatte
- 140
- Durchbruch
- 141
- Rundung
- 142
- Bohrung
- 143
- Niet
- 144
- Flanschteil
- 145
- Schweißnaht
- 146
- Stirnfläche
- 147
- Stirnfläche
- 148
- Durchbruch
- 149
- Durchbruch
- 150
- Aussparung
Claims (20)
- Nasselektrofilter (1,101), insbesondere zur Abscheidung von Schwefeloxiden und Stäuben aus Abgasen, bestehend aus mehreren Niederschlagsrohren (2,102), die mit Erdungsmitteln ausgestattet sind, wobei die Niederschlagsrohre (2,102) zumindest an einer Endseite Durchbrüche (12) in das Rohrinnere aufweisen und in einer Aufnahmeeinrichtung einhängbar ausgebildet sind,
dadurch gekennzeichnet, dass mehrere, einzelne Erdungselemente (10,20) vorgesehen sind, die umfangsverteilt um die Niederschlagsrohre (2,102) angeordnet sind und in die vorhandenen Durchbrüche (12) hineinragen, wobei die im mittleren Bereich der Niederschlagsrohre (2,102) angeordneten Erdungselemente (10,20) mindestens zwei benachbarte Niederschlagsrohre (2,102) elektrisch leitend miteinander verbinden. - Nasselektrofilter nach Anspruch 1,
dadurch gekennzeichnet, dass die Durchbrüche (12) in der Zylinderfläche der Niederschlagsrohre (2,102) um jeweils 60° versetzt angeordnet sind und/oder dass die Durchbrüche (12) bis zur Stirnseite der Niederschlagsrohre (2,102) reichen. - Nasselektrofilter nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Erdungselemente (10,20) aus runden oder mehreckigen, beispielsweise annähernd dreieckförmigen, Erdungsverbindern bestehen, wobei die Randfläche der Erdungselemente (10,20) drei konkave Teilflächen (13) aufweisen, die in die korrespondierenden Durchbrüche (12) der Niederschlagsrohre (2,102) hineinragen. - Nasselektrofilter nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet, dass die Erdungselemente (10,20) bzw. Erdungsverbinder aus gepresstem Kohlenstoff (Graphit) bestehen und/oder dass der Kohlenstoff auf einem Trägermaterial aufgeklebt ist. - Nasselektrofilter nach Anspruch 4,
dadurch gekennzeichnet, dass zwei benachbarte Erdungselemente (10,20) durch einen oder mehrere elektrisch leitende Verbindungsstreifen (11), vorzugsweise Kohlenstoffstreifen, Kohlenstoffstangen oder Verbundstreifen aus einer homogenen Kohlenstoffschicht mit einer chemisch und thermisch resistenten Trägerschicht oder einer kompakten Trägerschicht mit einer C-Faser verstärkten Matrix aus Kohlenstoff oder Fluorkunststoff, verbunden sind. - Nasselektrofilter Anspruch 5,
dadurch gekennzeichnet, dass die Verbindungsstreifen (11) in Einschnitten (15) der Erdungselemente (10,20) einklemmbar gehalten sind. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass mehrere Erdungselemente (10,20) durch eine elektrisch leitende stirnseitige Abschlussplatte (5,6,110,131) miteinander verbunden sind, welche auf den äußeren Seitenflächen der Erdungselemente (10,20) zu liegen kommt oder dass die Erdungselemente (10,20) aus einer elektrisch leidenden stirnseitigen Abschlussplatte (5,6,110,131) bestehen, die zu den Durchbrüchen (12) der Niederschlagsrohre (2,102) korrespondierende konkav ausgebildete Vorsprünge aufweisen. - Nasselektrofilter nach Anspruch 7,
dadurch gekennzeichnet, dass die Abschlussplatte (5,6,110,131) aus einem Trägermaterial und einer elastisch aufgeklebten Kohlenstoffschicht besteht, wobei die Kohlenstoffschicht den Erdungselementen (10,20) zur elektrischen Kontaktierung zugewandt ist, wobei die Abschlussplatten in Sandwichbauweise hergestellt, eine mittlere Kohlenstoffschicht und zwei äußere Trägerschichten aufweisen. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die in die Durchbrüche (12) hineinragenden konkaven Teilflächen der Erdungselemente (10,20) zur Innenfläche der Niederschlagsrohre (2,102) bündig oder zurückstehend verlaufen, wobei die Niederschlagsrohre (2,102) aus Rundrohren bestehen, die zu einer möglichst kompakten Struktur zusammengefügt sind. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass die Niederschlagsrohre (2,102) zumindest mit einer oberen Tragplatte (3,103) verbunden sind, die fluchtend zu den Niederschlagsrohren (2,102) korrespondierende Durchbrüche (121) und einen Flanschkragen aufweist, der in einem Tragrahmen (108) und/oder Gehäuse einhängbar ist. - Nasselektrofilter nach Anspruch 10,
dadurch gekennzeichnet, dass eine zweite obere Tragplatte (104) vorhanden ist, die vorzugsweise in einem Abstand von ca. 300 bis 500 mm zur ersten Tragplatte (3,103) angeordnet ist und ebenso mit den Niederschlagsrohren (2,102) verbunden, beispielsweise verschweißt, ist und dass die Niederschlagsrohre (2,102) gegenüber der oberen ersten Tragplatte (3,103) herausragen, bündig abschließen oder zurückgesetzt sind und mit dieser verbunden, beispielsweise verschweißt, sind. - Nasselektrofilter nach Anspruch 10 oder 11,
dadurch gekennzeichnet, dass entlang der Niederschlagsrohre (2,102) mehrere Führungsplatten (7,105) angeordnet sind, deren Abstand durch Distanzstäbe festgelegt ist oder gegenüber den Niederschlagsrohren (2,102) durch Verriegelungselemente, beispielsweise an den Niederschlagsrohren (2,102) angeschweißte Sperrklinker und Ausnehmung in den Durchbrüchen der Führungsplatten (7,105), gehalten sind. - Nasselektrofilter nach Anspruch 10, 11 oder 12,
dadurch gekennzeichnet, dass die Führungsplatten (7,105) gegenüber den Niederschlagsrohren (2,102) einen vergrößerten Durchbruch aufweisen, sodass ein ausreichendes Spiel vorhanden ist und dass die Distanzstäbe im Rohrbündel zwischen den Niederschlagsrohren (2,102) verteilt angeordnet sind und dass die zweite Tragplatte (104) und die benachbarte Führungsplatte (7,105) sowie die Führungsplatten (7,105) untereinander durch Distanzstäbe oder Verriegelungselemente verbunden, beispielsweise verschweißt, sind. - Nasselektrofilter nach einem oder mehreren der Ansprüche 10 bis 13,
dadurch gekennzeichnet, dass oberhalb der ersten Tragplatte (3,103) eine vorzugsweise parallel verlaufende Abschlussplatte (5,6,110,131) aufgesetzt und mit der ersten Tragplatte (3,103) verschraubt ist und dass die Abschlussplatte (5,6,110,131) ebenso wie die Tragplatte (3,103) zu den Niederschlagsrohren (2,102) fluchtende Durchbrüche (121) aufweist, welche nach außen hin abgerundet ausgeführt sind. - Nasselektrofilter nach einem oder mehreren der Ansprüche 10 bis 14,
dadurch gekennzeichnet, dass die Durchbrüche (121) der Abschlussplatte (5,6,110,131) etwas größer als die Innenbereiche der Niederschlagsrohre (2,102) ausgebildet sind und die Abschlussplatte (5,6,110,131) auf der Stirnfläche der Niederschlagsrohre (2,102) zumindest teilweise aufliegt und dass zwischen der ersten Tragplatte (3,103) und der Abschlussplatte (5,6,110,131) Distanzscheiben (115) angeordnet sind. - Nasselektrofilter nach einem oder mehreren der Ansprüche 10 bis 15,
dadurch gekennzeichnet, dass die Niederschlagsrohre (2,102) im unteren Bereich zumindest ein Flanschteil (144) aufweisen, das gegenüber der Stirnfläche der Niederschlagsrohre (102) um die Plattenstärke einer unteren Klemmplatte (130) zurückgesetzt angeordnet und mit den Niederschlagsrohren (2,102) verbunden, beispielsweise verschweißt, ist und dass an der oberen und unteren Stirnfläche (146,147) der Flanschteile (144) jeweils eine Klemmplatte (130,139) anliegt, die über mehrere Schraubbolzen (135) miteinander verbunden sind, wobei über den Schraubbolzen (135) eine an der unteren Klemmplatte (130) parallel anliegende zweite Abschlussplatte (6,131) befestigt ist, wobei die untere Klemmplatte (130) durch die Abschlussplatte (6,131) ersetzbar ist und dass die Klemmplatten (130,139) zu den Niederschlagsrohren (2,102) korrespondierende Durchbrüche (148,149) aufweisen, die an das Außenmaß der Niederschlagsrohre (2,102) angepasst sind, sodass die Klemmplatten (130,139) über die Niederschlagsrohre (2,102) schiebbar sind und dass zumindest eine Klemmplatte (139) einen vergrößerten Durchbruch (149) mit Spiel zu den Niederschlagsrohren (2,102) aufweist. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 16,
dadurch gekennzeichnet, dass die zweite Abschlussplatte (6,131) einen nach außen abgerundeten Durchbruch (140) aufweist, der an das Außenmaß der Niederschlagsrohre (2,102) angepasst ist, sodass die Abschlussplatte (6,131) über die Niederschlagsrohre (2,102) schiebbar ist und dass die untere Klemmplatte (130) Aussparungen (150) für weitere Befestigungsmittel der Abschlussplatte (6,131) aufweist. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 17,
dadurch gekennzeichnet, dass die Abschlussplatten (6,131) als Sandwichplatte mit einer inneren und äußeren aus Kunststoff bestehenden Platte (116,117,132,133) ausgebildet sind und dass zwischen den Kunststoffplatten (116,117,132,133) eine Erdungsschicht (118,134) aus einer Kohlenstoffschicht vorhanden ist, wobei vorzugsweise elastisch gepresster Kohlenstoff (Graphit) vorgesehen ist. - Nasselektrofilter nach einem oder mehreren der Ansprüche 1 bis 18,
dadurch gekennzeichnet, dass die Erdungsschicht (118,134) zumindest abschnittsweise bis zum Rand der Durchbrüche (121,140) reicht und bündig mit der oberen und unteren Kunststoffplatte (116,117,132,13) abschließt oder dass die Erdungsschicht (118,134) über den gesamten Randbereich der Durchbrüche (121,140) ausgebildet ist. - Nasselektrofilter nach einem oder mehreren der Ansprüche 10 bis 19,
dadurch gekennzeichnet, dass die Abschlussplatten (6,131) im Bereich der vorhandenen Bohrungen (118,145) zusätzliche Verbindungselemente, beispielsweise Nieten (120,143), aufweisen, die umfangsverteilt um die Bohrungen (114, 136) herum angeordnet sind und im Falle der unteren Abschlussplatte (6,131) in den vorhandenen Aussparungen (150) zu liegen kommen.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10153236A DE10153236C1 (de) | 2001-10-31 | 2001-10-31 | Erdungssystem |
DE10153236 | 2001-10-31 | ||
DE20209172U | 2002-06-12 | ||
DE20209172U DE20209172U1 (de) | 2001-10-31 | 2002-06-12 | Rohrbündelaufnahmeeinrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1308212A2 true EP1308212A2 (de) | 2003-05-07 |
EP1308212A3 EP1308212A3 (de) | 2003-11-05 |
EP1308212B1 EP1308212B1 (de) | 2005-06-22 |
Family
ID=26010473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02024172A Expired - Lifetime EP1308212B1 (de) | 2001-10-31 | 2002-10-30 | Nasselektrofilter |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1308212B1 (de) |
AT (1) | ATE298270T1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005011870A2 (de) * | 2003-07-28 | 2005-02-10 | Steuler-Industriewerke Gmbh | Niederschlagsrohre für nasselektrofilter |
CN103657857A (zh) * | 2013-12-20 | 2014-03-26 | 金烈水 | 库仑阳极板 |
CN106807554A (zh) * | 2016-12-30 | 2017-06-09 | 浙江宏电环保科技有限公司 | 可抽取式更换阳极管组 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104399589B (zh) * | 2014-12-18 | 2016-07-06 | 江苏蓝电环保股份有限公司 | 一种电除尘设备阴极系统吊挂装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3900553C1 (en) * | 1989-01-11 | 1989-12-28 | Bleiwerk Goslar Gmbh & Co Kg Besserer & Ernst, 3380 Goslar, De | Electric separator made of plastic and/or metal, for example lead |
DE4102732A1 (de) * | 1991-01-30 | 1992-08-06 | Steuler Industriewerke Gmbh | Nasselektrofilter und verfahren zu seiner herstellung |
DE19833226C1 (de) * | 1998-07-23 | 2000-04-20 | Steuler Industriewerke Gmbh | Niederschlagsrohrbündel für Naßelektrofilter |
-
2002
- 2002-10-30 AT AT02024172T patent/ATE298270T1/de not_active IP Right Cessation
- 2002-10-30 EP EP02024172A patent/EP1308212B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3900553C1 (en) * | 1989-01-11 | 1989-12-28 | Bleiwerk Goslar Gmbh & Co Kg Besserer & Ernst, 3380 Goslar, De | Electric separator made of plastic and/or metal, for example lead |
DE4102732A1 (de) * | 1991-01-30 | 1992-08-06 | Steuler Industriewerke Gmbh | Nasselektrofilter und verfahren zu seiner herstellung |
DE19833226C1 (de) * | 1998-07-23 | 2000-04-20 | Steuler Industriewerke Gmbh | Niederschlagsrohrbündel für Naßelektrofilter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005011870A2 (de) * | 2003-07-28 | 2005-02-10 | Steuler-Industriewerke Gmbh | Niederschlagsrohre für nasselektrofilter |
WO2005011870A3 (de) * | 2003-07-28 | 2009-03-19 | Steuler Industriewerke Gmbh | Niederschlagsrohre für nasselektrofilter |
CN103657857A (zh) * | 2013-12-20 | 2014-03-26 | 金烈水 | 库仑阳极板 |
CN103657857B (zh) * | 2013-12-20 | 2015-12-02 | 金烈水 | 库仑阳极板 |
CN106807554A (zh) * | 2016-12-30 | 2017-06-09 | 浙江宏电环保科技有限公司 | 可抽取式更换阳极管组 |
Also Published As
Publication number | Publication date |
---|---|
EP1308212B1 (de) | 2005-06-22 |
EP1308212A3 (de) | 2003-11-05 |
ATE298270T1 (de) | 2005-07-15 |
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