HOUSING FOR A WET ELECTROSTATIC PRECIPITATOR AND WET ELECTROSTATIC PRECIPITATOR

Abstract

The invention relates to a housing (1) for a wet electrostatic precipitator (100), comprising an inlet (2) and an outlet (3) for an exhaust gas stream and a base body (4) which is designed as an elongated hollow body, said housing being made of plastic or a plastic-containing material, wherein the inlet (2) and the outlet (3) are spaced apart from one another in the direction of the longitudinal extension of the base body (4). According to the invention, the base body (4) has a plurality of connecting points (5) which are arranged in a distributed manner over the outer periphery of the base body (4) and are designed for securing tie-rod elements or other connecting elements transmitting tensile forces. The invention further relates to a wet electrostatic precipitator (100) having a housing (1) of said type.

Claims

1.-22. (canceled)

23. A housing for a wet electrostatic precipitator, comprising: an inlet and an outlet for an exhaust gas flow; and a main body in form of an elongated hollow body for enclosing precipitation tubes, wherein the inlet and the outlet are arranged at a distance from one another in the direction of a longitudinal extension of the main body and wherein the main body is produced from plastic or a plastic-containing material, has a polygonal cross-section, and comprises a plurality of attachment points, which are arranged on sides of the polygonal cross section distributed over an outer circumference of the main body on an outer side of the main body and are designed for attaching connecting elements transmitting tensile force and/or compressive force, to transfer transverse forces acting transversely to the longitudinal extension of the main body through the connecting elements to a third object outside the housing.

24. The housing according to claim 23, wherein the attachment points are arranged in the longitudinal extension of the main body.

25. The housing according to claim 23, wherein a plurality of the attachment points are arranged in a distributed manner in a common plane over a circumference of the main body and a plurality of such common planes are arranged one behind another in the direction of the longitudinal extension of the main body.

26. The housing according to claim 23, wherein the main body formed as an elongated hollow body has a quadrangular cross-section.

27. The housing according to claim 23, wherein a wall forming the main body is provided and at least one of the attachment points is formed by a receptacle provided in or on the wall for a connecting element transmitting tensile force and/or compressive force.

28. The housing according to claim 23, wherein a wall forming the main body is provided and at least one of the attachment points comprises a reinforcing part which is bonded to an outer side of the wall and to which one of the connecting elements transmitting tensile force and/or compressive force can be attached.

29. The housing according to claim 28, wherein the reinforcing part is a metal profile and is laminated to the wall or bonded to the wall by another integral bonding technique.

30. The housing according to claim 23, wherein the main body has a modular structure, in that the main body comprises at least two wall parts of which adjacent wall parts are each connected to one another to form at least one part of an inner circumference of the main body.

31. The housing according to claim 30, wherein the wall parts are formed by two types of identical parts, of which one type of the wall parts forms a section of the inner circumference of the main body with a corner region and the other type of the wall parts forms a section of the inner circumference of the main body without a corner region.

32. The housing according to one of claim 30, wherein the adjacent wall parts are connected to one another to form a plug connector.

33. The housing according to one of claim 30, wherein the adjacent wall parts are fitted together in the circumferential direction in relation to the housing.

34. A wet electrostatic precipitator, comprising: the housing as in claim 23 for conducting an exhaust gas flow; and a bearing structure which at least partially surrounds the housing and can be placed on a base surface or is placed thereon, wherein transversely to the longitudinal extension of the main body of the housing at least one connecting element transmitting tensile force and/or compressive force is bonded on one side in each case at the attachment points of the main body and is bonded on the other side to the bearing structure so that transverse forces acting transversely to the longitudinal extension of the main body are absorbed by the bearing structure.

35. The wet electrostatic precipitator according to claim 34, wherein the at least one connecting element is a joint-free and dimensionally stable rod member, which is firmly bonded with one end thereof against the main body and with another end thereof against the bearing structure at least in the direction of its longitudinal axis.

36. The wet electrostatic precipitator according to claim 34, wherein the at least one connecting element is a pendulum element which comprises at least two joints by which a change in a position of the associated attachment point of the main body in relation to an associated attachment position on the bearing structure in the direction of the longitudinal extension of the main body is permitted.

37. The wet electrostatic precipitator according to claim 34, wherein in each case at least two of the attachment points form a unit with the associated connecting elements, which are attached at an end against a common profile with interposition of a support of the bearing structure.

38. The wet electrostatic precipitator according to claim 34, wherein the bearing structure is a steel structure or a reinforced concrete structure.

39. The wet electrostatic precipitator according to claim 34, wherein the bearing structure has a projection, shoulder, or similar step, against which the housing is supported in the direction of the longitudinal extension thereof.

40. The wet electrostatic precipitator according to claim 34, wherein the main body accommodates at least one precipitation tube bundle, the precipitation tubes of which extend with the longitudinal extension thereof in the longitudinal direction of the main body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0054] FIG. 1 shows a possible embodiment of a wet electrostatic precipitator in a longitudinal section.

[0055] FIG. 2 shows the wet electrostatic precipitator of FIG. 1 in a sectional view along the line of intersection A-A of FIG. 1.

[0056] FIG. 3 shows a region of the wet electrostatic precipitator of FIGS. 1 and 2 having a plug connector of two wall parts of the housing of the wet electrostatic precipitator and an anchorage against a bearing structure on the basis of the detail Y of FIG. 2 in a magnified view.

[0057] FIG. 4 shows a region of the wet electrostatic precipitator of FIGS. 1 and 2 having an anchorage unit for connecting the housing of the wet electrostatic precipitator to a bearing structure on the basis of the detail X of FIG. 1 in a magnified view.

[0058] FIG. 5 shows an alternative anchorage unit for connecting the housing of the wet electrostatic precipitator to the bearing structure.

[0059] FIG. 6 shows an embodiment of a wet electrostatic precipitator having a housing and a precipitation tube bundle incorporated therein in a sectional view.

[0060] FIG. 7 shows a further embodiment of a wet electrostatic precipitator having a housing and two precipitation tube bundles incorporated therein in a sectional view.

[0061] FIG. 8 shows another embodiment of a wet electrostatic precipitator having a housing and four precipitation tube bundles incorporated therein in a sectional view.

[0062] FIG. 9 shows another embodiment of a wet electrostatic precipitator having a housing and six precipitation tube bundles incorporated therein in a sectional view.

DETAILED DESCRIPTION

[0063] FIGS. 1 and 2 showin a schematic representationa possible embodiment of a wet electrostatic precipitator 100 in a longitudinal section along the longitudinal axis 8 of the wet electrostatic precipitator (FIG. 1) and in a cross-section along the line of intersection A-A (FIG. 2). The wet electrostatic precipitator 100 comprises a housing 1 for conducting an exhaust gas flow and a supporting structure 60 which at least partially surrounds the housing 1 and is constructed on a base surface 70, in particular is anchored against the base surface 70. The longitudinal axis 8 of the housing 1 forms a vertical axis in this respect.

[0064] The housing 1 has an inlet 2 and an outlet 3 in order to be able to conduct an exhaust gas flow through the housing 1. The inlet 2 is preferably arranged in an upper region of the housing 1 and the outlet 3 in a lower region of the housing 1. The exhaust gas flow is thus directed in the direction of the arrows 80, 90 through the housing 1, i.e. flows through the housing 1 from top to bottom. In principle, the exhaust gas flow can also flow through the wet electrostatic precipitator 100 in the opposite direction. The inlet 2 is then used as the outlet, and the outlet 3 is used as the inlet so that the exhaust gas flow flows through the housing 1 from bottom to top.

[0065] The housing 1 is preferably a plastic housing and has an elongated main body 4, which is produced from plastic or a plastic-containing material. For example, the main body 4 is formed from a glass-fiber-reinforced plastic. The housing 1 can have a chemical protective layer on its outer side and/or its inner side, which, for example, has a glass-fiber-reinforced plastic or consists thereof.

[0066] The main body 4 is designed as a hollow body having a hollow cavity, in particular a single hollow cavity, and can be used for enclosing at least one (not shown in FIGS. 1 and 2) precipitation tube bundle. For example, the main body 4 is designed to be rotationally symmetrical in relation to the longitudinal axis 8 of the housing 1. Preferably, the hollow cavity of the main body 4 is also designed to be rotationally symmetrical in relation to the longitudinal axis 8, wherein the longitudinal axis 8 preferably coincides with the longitudinal axis of the hollow cavity.

[0067] It is possible for the main body 4 to be open at an end side extending in the longitudinal direction of the main body 4 in order to be able to introduce at least one precipitation tube bundle into the hollow cavity of the main body 4. To close this opening, an end piece 17 or end part can be provided, which is, for example, connected, in particular detachably connected, by means of separate connecting means to the main body 4. The end piece 17 is preferably produced from plastic or a plastic-containing material. For example, the end piece 17 is identical to the main body 4 in terms of material.

[0068] The end piece 17 is preferably arranged on the upper end of the main body 4 so that the (not shown in FIGS. 1 and 2) at least one precipitation tube bundle can be introduced when the housing 1 is positioned. The inlet 2 of the wet electrostatic precipitator 100 is preferably associated with the end piece 17 and is disposed, for example, in the upper end region of the end piece 17.

[0069] The end section provided at the other end of the housing 1 is preferably formed by the main body 4, for example, in that the main body 4 at the lower end has a bottom section 18, which delimits the hollow cavity of the main body 4 towards the lower end. The outlet 3 is preferably associated with the bottom section 18 and can be formed on the lower end of the bottom section 18.

[0070] The bearing structure 60 is, for example, a steel or steel-reinforced concrete frame. The bearing structure 60 preferably has a projection, shoulder or similar step 63, which forms a contact surface 64 positioned transversely to the longitudinal axis 8. The step 63 can be formed in a circumferential manner.

[0071] The main body 4, in a corresponding manner, preferably has a projection, shoulder or similar step 20, which forms a counter-contact surface 21. The step 20 is preferably formed in a circumferential manner. In the installed state, the housing 1 is fitted on the step 63 of the bearing structure 60 so that forces acting in the longitudinal direction of the housing 1, i.e. in the direction of the longitudinal axis 8 of the wet electrostatic precipitator 100, are absorbed by the bearing structure 60. For example, it is guaranteed in this way that by means of the steps 63 and 20 at least the weight force of the housing 1 with the weight force of the components accommodated therein or attached thereto are absorbed by the bearing structure 60 in that the step 20 is supported against the step 63.

[0072] The main body 4 comprises a plurality of attachment points 5, which are arranged in a distributed manner over the outer circumference of the main body 4, as can be seen in particular from FIG. 2. The attachment points 5 are also preferably arranged in the longitudinal extension of the main body 4, as can be seen from FIG. 1. Advantageously, a plurality of the attachment points 5 are arranged in a distributed manner in a common plane 6 over the circumference of the main body 4 and a plurality of such planes 6.1, 6.1, 6.2, 6.2, 6.3, 6.3, 6.4, 6.4, 6.5, 6.5, 6.6, 6.6 are arranged one behind the other in the longitudinal extension of the main body 4.

[0073] At least one connecting element 50 transmitting tensile force and/or compressive force, for example a tie-rod element, is bonded in each case to the attachment points 5, wherein any effective transverse forces, i.e. acting transversely to the longitudinal axis 8, are transmitted via said connecting element to the bearing structure 60. The transverse forces are therefore introduced into the bearing structure 60 and the main body 4 is thereby relieved. The transverse forces are, for example, brought about by the delivery pressure, with which the exhaust gas is delivered into the housing 1. In normal operation with a vacuum, such transverse forces occur which act in an inward direction, causing the housing 1 to deform inwardly or to collapse inwardly.

[0074] By introducing possible transverse forces into the bearing structure 60, cross-sectional shapes can be used for the housing 1, which are more sensitive to deformation with respect to transverse forces than, for example, a circular cross-section is. Therefore, the housing 1 has, for example, an angular cross-section, in particular a quadrangular cross-section.

[0075] FIGS. 3 and 4 show the structure of the connection between the main body 4 and the bearing structure 60 with the example of one or two of the connecting elements 50 on the basis of the details X and Y of FIGS. 1 and 2. The connecting element 50 can be a rod member which is firmly bonded with its one end against the main body 4 and with its other end against the bearing structure 60, in particular a support 61 of the bearing structure 60. For example, the rod member at least at its end facing the bearing structure 60 has a thread so that attachment with respect to the bearing structure 60 can occur by screwing directly against the bearing structure 60 or the support 61 of the bearing structure 60 or indirectly by means of a nut element 51 with interposition of the bearing structure 60 or the support 61. The bearing structure 60 or the support 61 preferably has a passage opening 62 or a passage borehole, through which the connecting element 50 is inserted and is then screwed at the end using the nut element 51. The connecting element 50 formed as a rod member in this case is, for example, a joint-free and dimensionally stable rod member, which can transmit tensile forces.

[0076] As can be seen in particular from FIG. 4, at least two attachment points 5 can form a unit with the associated connecting elements 50 in each case, which are attached at the end against a common profile 52, such as a plate profile, with interposition of the bearing structure 60, in particular of the support 61. The connecting elements 50 with their end facing the main body 4 can be embedded on a wall 7 of the main body 4 in a receptacle provided there in each case. The receptacle can be thread-guiding so that the connecting element 50 with its end, which is also thread-guiding, is screwed into the receptacle.

[0077] FIG. 5 shows, in an example, an alternative embodiment of the attachment points 5 of the main body 4. The attachment points 5 there are formed by a reinforcing part 10 which is bonded to the outer side 9 of a wall 7 of the main body 4 and to which the connecting element 50 or an alternative connecting element 50 transmitting tensile force and/or compressive force can be attached. The reinforcing part 10 can be a metal profile, such as a steel profile. The reinforcing part 10 is preferably laminated to the wall 7 by means of a plastic material, which forms an enclosure 19 receiving the reinforcing part 10, said enclosure being connected to the wall 7 of the main body 4, in particular integrally formed thereon.

[0078] In FIG. 5, in contrast to the bearing structure 60 of FIG. 4, a bearing structure 60 is provided which comprises at least one support 61 having a closed cross-sectional profile. The closed cross-sectional profile can be a quadrangular profile in its cross-section. In contrast, the bearing structure 60 of FIGS. 1 to 4 has, for example, at least one support, in particular the support 61, which is formed by a profile open at one end, for example a U-shaped profile.

[0079] In the embodiment of FIG. 5, the alternative connecting elements 50 are also provided, which differ from the connecting elements 50 of FIGS. 1 to 4 in that the connecting elements 50 are formed as pendulum elements having at least two joints 53, 54. As a result, a change in the position of the associated attachment point 5 of the main body 4 in relation to the associated attachment position on the bearing structure 60 is permitted in the direction of the longitudinal extension of the main body 4, i.e. in the direction of the longitudinal axis 8, as can be seen by the double-headed arrow 95.

[0080] In the case of the housing 1, the main body 4 is structured in a modular manner. To this end, the main body 4 has a plurality of wall parts 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, 11.7, 11.8, of which adjacent wall parts 11.1, 11.2 or 11.2, 11.3 or 11.3, 11.4 or 11.5, 11.6 or 11.6, 11.7 or 11.7, 11.8 or 11.8, 11.1 in each case are connected to one another to form at least one part of the inner circumference of the main body 4, as can be seen for example in FIGS. 2 and 3.

[0081] Advantageously, the adjacent wall parts 11.1, 11.2 or 11.2, 11.3 or 11.3, 11.4 or 11.5, 11.6 or 11.6, 11.7 or 11.7, 11.8 or 11.8, 11.1 are each connected to one another to form a plug connector 16. The plug connectors 16 are each formed by a coupling section 14 and a counter-coupling section 15, which can be plugged together. For example, the coupling section 14 is formed by a push-in receptacle and the coupling section 15 by a push-in section that can be pushed into the push-in receptacle. Preferably, the coupling section 14 and the counter-coupling section 15 are each integrally formed on the associated wall part 11.6 or 11.7.

[0082] Preferably, the wall parts 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, 11.7, 11.8 are formed by two types of identical parts, of which one type of the wall parts 12 forms a section of the inner circumference of the main body 4 with a corner region and the other type of the wall parts 13 forms a section of the inner circumference of the main body 4 without a corner region, for example with a rectilinear section of the inner circumference (FIG. 2).

[0083] FIG. 6 shows, for example, the housing 1 of the wet electrostatic precipitator 100 with a precipitation tube bundle 110 accommodated therein in a sectional view along the line of intersection A-A of FIG. 1. Preferably, the precipitation tube bundle 110 has a plurality of precipitation tubes 111, which are assembled into a bundle and are held together in the bundle. For example, the precipitation tube bundle 110 forms a quadrangular, in particular rectangular or square cross-section. Preferably, the precipitation tube bundle 110 is positioned on the shoulder 20 of the main body 4, for example by a supporting structure supporting the precipitation tube bundle 110 (FIG. 1) so that the weight force of the precipitation tube bundle 110 is also absorbed by the bearing structure 60 by means of the step 20.

[0084] FIG. 7 shows a further embodiment of a wet electrostatic precipitator 100 having a housing 1, comprising a main body 4 having a rectangular cross-section. Two precipitation tube bundles 111 and 112 are incorporated therein. A bearing structure 60 surrounding the wet electrostatic precipitator 100 is provided, which is adapted to the cross-sectional dimension of the housing 1 or of the main body 4.

[0085] FIGS. 8 and 9 show, for example, further embodiments of a wet electrostatic precipitator 100 and 100 having a housing 1 or 1 , comprising a main body 4 or 4 having a rectangular cross-section. Four precipitation tube bundles 114 (FIG. 8) or six precipitation tube bundles 114 (FIG. 9) are incorporated therein. A bearing structure 60 or 60 surrounding the wet electrostatic precipitator 100 or 100 is provided, which is adapted to the cross-sectional dimension of the housing 1 or 1 or of the main body 4 or 4.

[0086] In principle, the cross-section can assume any form. In this respect, any number of precipitation tube bundles 111 can be incorporated therein.

[0087] In the present description, reference to a specific aspect or specific embodiment or specific design means that a specific feature or a specific property described in relation to the aspect or embodiment or design is contained at least therein, but is not necessarily contained in all aspects or embodiments or designs of the invention. It should be explicitly noted that any combination of different features and/or structures and/or properties which are described in relation to the invention are included by the invention if this is not explicitly or clearly contradicted by the context.

[0088] The use of individual or all examples or an exemplary expression in the text is used only to highlight the invention and does not constitute any restriction in terms of the scope of the invention if no mention to the contrary is made. Any expression or formulation of the description should be understood such that it relates to a claimed element which, however, is essential for carrying out the invention.

LIST OF REFERENCE SIGNS

1 Housing

1 Housing

1 Housing

1 Housing

2 Inlet

3 Outlet

[0089] 4 Main body
4 Main body
4 Main body
4 Main body
5 Attachment points

6 Plane

6.1 Plane

6.1 Plane

6.2 Plane

6.2 Plane

6.3 Plane

6.3 Plane

6.4 Plane

6.4 Plane

6.5 Plane

6.5 Plane

6.6 Plane

6.6 Plane

7 Wall

7 Wall

[0090] 8 Longitudinal axis
9 Outer side
10 Reinforcing part
11.1 Wall part
11.2 Wall part
11.3 Wall part
11.4 Wall part
11.5 Wall part
11.6 Wall part
11.7 Wall part
11.8 Wall part
12 Wall parts
13 Wall parts
14 Coupling section
15 Counter-coupling section
16 Plug connector
17 End piece
18 Bottom section

19 Enclosure

20 Step

[0091] 21 Counter-contact surface
50 Connecting element
50 Connecting element
51 Nut element

Profile

53 Joint

54 Joint

[0092] 60 Bearing structure
60 Bearing structure

61 Support

61 Support

[0093] 62 Passage opening

63 Step

[0094] 64 Contact surface
70 Base surface

80 Arrow

90 Arrow

[0095] 95 Double-headed arrow
100 Wet electrostatic precipitator
100 Wet electrostatic precipitator
100 Wet electrostatic precipitator
100 Wet electrostatic precipitator
110 Precipitation tube bundle
111 Precipitation tubes
112 Precipitation tube bundle
113 Precipitation tube bundle
114 Precipitation tube bundle