EP1470367A1 - Board for a protection system for a boiler tube wall and protection system for a boiler tube wall - Google Patents

Board for a protection system for a boiler tube wall and protection system for a boiler tube wall

Info

Publication number
EP1470367A1
EP1470367A1 EP03704487A EP03704487A EP1470367A1 EP 1470367 A1 EP1470367 A1 EP 1470367A1 EP 03704487 A EP03704487 A EP 03704487A EP 03704487 A EP03704487 A EP 03704487A EP 1470367 A1 EP1470367 A1 EP 1470367A1
Authority
EP
European Patent Office
Prior art keywords
plate
tube wall
boiler tube
recess
holding element
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
Application number
EP03704487A
Other languages
German (de)
French (fr)
Other versions
EP1470367B1 (en
Inventor
Stephan Mulch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Juenger and Graeter Feuerfestbau GmbH
Original Assignee
Saint Gobain IndustrieKeramik Roedental GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saint Gobain IndustrieKeramik Roedental GmbH filed Critical Saint Gobain IndustrieKeramik Roedental GmbH
Publication of EP1470367A1 publication Critical patent/EP1470367A1/en
Application granted granted Critical
Publication of EP1470367B1 publication Critical patent/EP1470367B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/107—Protection of water tubes
    • F22B37/108—Protection of water tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/04—Supports for linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements

Definitions

  • the invention relates to a plate for a protection system for a boiler tube wall with a rear, a front and the sides connecting the back and front, and a protection system for a boiler tube wall with a holding element fastened to the boiler tube wall with a through hole, a plate and an anchoring element penetrating through the through hole ,
  • Such plates and protection systems are used in incineration plants to protect boiler tube walls from flue gas.
  • Such a plate and such a system are described for example in DE 40 07 662 Cl.
  • the system described has holding elements welded to the boiler tube wall in a horizontal row on which the plates are supported. Due to the thickness of the holding element, there is always a horizontal gap between two plates arranged vertically one above the other.
  • Each plate is held on the holding element by an anchoring element.
  • the anchoring element engages in a recess on one side of the plate.
  • the anchoring element is already in a through hole in the holding element, the plate being inserted in such a way that the anchoring element engages in the recess.
  • it is attached using mortar attached to the wall.
  • the gaps between the plates and the recesses in the plates are also filled with mortar.
  • the invention is based on the technical problem of simplifying the known protection system and making it more stable.
  • a plate for a protection system for a boiler tube wall with a rear, a front and sides connecting the rear and front, wherein - A recess for receiving a holding element is provided on the back and
  • a hole leads from one side to the recess.
  • the plate of the invention has a recess on its rear side for receiving a holding element. Installed in a protection system, the plate is therefore not supported with its lower side on the holding element but is suspended with the recess on the holding element. The holding element is completely protected from the flue gas by the plate. Furthermore, if there are several panels installed next to or on top of each other, no gaps remain through the holding elements. The panels can be placed directly next to each other without a gap, so that either no or very little mortar or joint filling material is used to fill the gap between the panels. This increases the stability of the protection system.
  • the plate according to the invention has a bore which leads from one side to the recess.
  • this hole serves to introduce an anchoring element which anchors the plate to the holding element. Since the anchoring element is inserted from one side, a full-surface front surface remains which is in contact with the flue gas. Even if the hole is built in Is filled with mortar, this mortar is not in direct contact with the flue gas.
  • the plates can be installed directly on top of each other so that there is no gap through which flue gas can flow from the front along the sides.
  • a plate is understood to mean any body which is used in protective systems of boiler tube walls to protect the boiler tube walls, namely any body which is attached to the side of the boiler tube wall facing the flue gas to protect it from flue gas.
  • These are in particular stones made of refractory materials.
  • the plate can have any shape. It is essential that it has a defined rear side, which faces the boiler tube wall in the installed state and into which a recess can be made, in which the holding element is protected from smoke gas contact by the plate in the installed state.
  • the front and sides can be designed in any way and merge seamlessly. The front and sides of the plate differ from the rear in that they do not face the boiler tube wall when installed. Their shape is determined by the location of the plate. It is essential that a side is provided which, when installed, is not in direct contact with the flue gas into which the bore is made.
  • the plate is a flat body with a flat front, flat sides perpendicular to the front and a back. The surface of the front is in the Usually larger than the area of a page.
  • the front side particularly preferably has a rectangular shape. However, other shapes are also conceivable (e.g. hexagonal, triangular or octagonal shapes.
  • a recess is understood to mean any contour of the back of the plate which allows the plate to be hung on a holding element projecting from a boiler tube wall. Hooking in means placing the plate with its recess on a holding element. Depending on the installation position of the plate, this can protrude from a vertical or at an angle to the vertical tube wall.
  • the recess in the planes parallel to the front surface preferably has a rectangular cross section, with the surfaces adjacent to the rear, delimiting the recess, running perpendicular to the front.
  • a hole is understood to mean any breakthrough of the plate from one side to the recess. This can be a passage created by actually drilling into the stone. However, it can also be, for example, a passage already produced during the production of the basic shape of the plate. It is essential that the bore allows an anchoring element to be pushed through from the side to the recess.
  • a particularly good stability of a protective wall composed of these plates for a boiler tube wall is achieved if one side is at an angle of less than 90 ° or more than 270 ° to Front is aligned, especially at an angle of 45 ° or 315 °.
  • the beveled side is placed on another, opposite beveled side, so that these beveled sides lie flat on each other.
  • the plates support one another and counteract rotation of the plate.
  • the installation of the plates is simplified by the bevel.
  • the plates can also be arranged partially overlapping via a step-shaped joint.
  • the sides can be formed as surfaces that run essentially perpendicular to the front.
  • the stability advantages and ease of installation and removal of the plate, as are achieved with plates with bevelled sides, can be achieved with plates with sides running perpendicular to the front side if these sides have a step running essentially parallel to the front side. Similar to how the angled sides interlock to stabilize and position the panel, panels with stepped sides interlock.
  • the heat transfer between the flue gas and the liquid in the tubes of the boiler tube wall is improved the closer the plate is to the boiler tube wall and the narrower the gap between the plate and the boiler tube wall. It is therefore advantageous if the back of the plate is shaped like a Boiler tube wall is adapted, in particular semi-cylindrical areas for the tubes and surfaces for the tube fins connecting the tubes.
  • the plate can have a blind bore that continues from the recess.
  • a protection system for a boiler tube wall with a holding element fastened to the boiler tube wall with a through hole, a plate and an anchoring element penetrating through the through hole is designed in such a way that the plate has a recess on the rear side facing the boiler tube wall that has a recess that holds the holding element the plate has a bore which leads from one side of the plate to the recess and that one end of the anchoring element projects into the bore.
  • Holding elements in the sense of the invention are any elements which can be attached to a boiler tube wall and which can carry a plate pushed with their recess on it if this plate is anchored by an anchoring element in a through bore of this element.
  • the holding elements are flat, prism-shaped, elongated steels which are welded onto the boiler tube wall (webs). Above all, the steels can have rectangular surfaces, but they can also have trapezoidal surfaces on two opposing surfaces or several opposing surfaces.
  • the holding element is preferably attached to tube fins, which between the tubes of the Boiler tube wall are arranged.
  • the longitudinal axis of the holding element is arranged perpendicular to the surface of the boiler tube wall, in particular the tube fin.
  • the advantages of the invention are achieved in protective systems which have only one plate. As a rule, however, a boiler tube wall is protected by a wall of plates arranged one above the other and next to one another.
  • the advantages according to the invention are achieved here in particular when all the plates of the protection system are fastened to the boiler tube wall according to the principle according to the invention.
  • the plates can be placed directly on and next to one another without a substantial gap. But they can also be set with a gap.
  • the possibly existing gap between the plates, the gap between a plate and the boiler tube wall, the bore and the recess can be filled with mortar to improve the heat transfer and the protection against flue gas.
  • the panels When assembled, the panels can also be back-poured with concrete or mortar. However, mortar-free installation is also possible.
  • the cross section of the recess in each plane perpendicular to the longitudinal axis of the holding element is many times larger than the cross section of the holding element in the same plane.
  • the area of a rectangle surrounded by boundary surfaces of the recess adjoining the rear is many times larger than the cross section of the holding element lying in the same plane.
  • the plate can then, when pushed onto the holding element, be pushed into the desired position perpendicular to the longitudinal axis of the holding element in the longitudinal direction of the recess.
  • the area of the recess defined in this way is preferably more than one and a half times, in particular more than three times larger than the cross section of the holding element.
  • the hold of the plate on the holding element is improved if a blind hole continues from the recess and a further end of the anchoring element projects into the blind hole.
  • the anchoring element can be pushed through the hole in the plate and the through-hole of the holding element into the blind hole. This ensures stable anchoring because the anchoring element is inserted into the plate at both ends.
  • a cylindrical or conical pin is used. This ensures a particularly good fit of the pin in the blind hole.
  • the anchoring element can be made of metal or ceramic, for example. The stability of the anchoring is particularly great if the anchoring element is wedge-shaped.
  • Fig. 1 shows a protection system for a boiler tube wall with a plate in a perspective, partially sectioned view
  • Fig. 2 shows the protection system of Fig. 1 in an exploded view.
  • a plate 1 is connected to a holding element 3 via an anchoring element 2.
  • the holding element 3 is welded onto the tube fin 4 of a boiler tube wall 5.
  • the holding element 3 is seated in a recess 6 of the plate 1.
  • the anchoring element 2 is inserted in a through hole 7 arranged in the region of the recess 6 in the holding element 3.
  • One end 2a of the anchoring element 2 projects into a hole 8 which extends from the recess 6 to one Page 9 of plate 1 leads.
  • the other end 2b of the pin-shaped anchoring element 2 protrudes into a blind hole 10 which continues from the recess 6.
  • the plate 1 has a front side 11, a rear side 12 and, in addition to the side 9, further sides 9a, 9b connecting the front side 11 and rear side 12 (the side 9c can be seen in FIG. 2).
  • the backside 12 is adapted to the shape of the boiler tube wall 5. It has semi-cylindrical regions 14 for the tubes 13 and a surface 15 which is adapted to the shape of the tube fin 4.
  • the sides 9, 9a, 9b, 9c consist of surfaces 16, 17 running perpendicular to the front 11 and a step 18 which is essentially parallel to the front 11. The transitions between the surfaces 16, 17 and the step 18 are rounded.
  • the step 18 is oriented on two sides 9b, 9c of the plate 1 from the front 11 towards the center of the plate and on the sides 9,9a opposite these sides 9b, 9c from the center of the plate.
  • the holding element 3 is designed as a flat, elongated web, the longitudinal axis of which is oriented perpendicular to the tube fin 4 and thus the boiler tube wall 5.
  • the holding element 3 is rounded at its outer end.
  • the surface of the recess 6 has the shape of a rectangle in a plane parallel to the front side 11, bounded by boundary surfaces adjacent to the rear side 12.
  • the base of the recess 6 is semi-cylindrical.
  • the width B of the recess 6 is insignificantly larger than the width B of the holding element 3 in order to enable the holding element 3 to be inserted easily into the recess 6.
  • the length L of the recess is many times greater than the thickness d of the holding element 3.
  • the plate 1 To assemble the plate 1, it is hung on the holding element 3 in such a way that the holding element 3 is inserted into the recess 6.
  • the plate 1 sits with its lower side 9b on the upper side of the next lower plate, not shown, and with its right side 9c on the left side of the next right plate, also not shown.
  • the steps in the sides of the panels ensure that the panels fit snugly.
  • the holding element 3 can, however, be attached somewhat above or below the desired position on the tubular fin 4. Because, in addition to the desired position, the holding element 3 can also be inserted well into the recess 6 due to the much longer length L of the recess 6 in relation to the thickness d of the holding element 3.
  • the plate 1 can also be suspended on the holding element 3 during assembly in the vertical installation position. Then the upper, in the longitudinal direction L, delimiting surface of the recess 6 rests on the upper surface of the holding element 3 (cf. FIG. 1). The gap possibly remaining between the plate 1 thus suspended on the holding element 3 and the next lower plate is filled with mortar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Finishing Walls (AREA)
  • Supports For Pipes And Cables (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The invention relates to a board (1) for a protection system for a boiler tube wall (5). Said board has a back (1), a front (11) and sides (9, 9a, 9b, 9c) that interlink the back (12) with the front (11). The back (12) is provided with a recess (6) for receiving retaining elements (3), a bore (8) leading from one side (9) to the recess (6). The invention also relates to a protection system for a boiler protection wall (5), which comprises a retaining element (3) fastened on the boiler tube wall (5) and comprising a throughbore (7), a board (1) and an anchoring element (2) extending through the throughbore (7). The board (1) on the back (12) facing the boiler tube wall (5) is provided with a recess (6) that receives the retaining element (3). The board (1) has a bore (8) that leads from one side (9) of the board (1) to the recess (6), and an end (2a) of the anchoring element (2) projects into the bore (8).

Description

Platte für ein Schutzsystem für eine Kesselrohrwand sowie Schutzsystem für eine Kesselrohrwand Plate for a protection system for a boiler tube wall and protection system for a boiler tube wall
Die Erfindung betrifft eine Platte für ein Schutzsystem für eine Kesselrohrwand mit einer Rückseite, einer Vorderseite und die Rück- und Vorderseite verbindende Seiten sowie ein Schutzsystem für eine Kesselrohrwand mit einem an der Kesselrohrwand befestigten Halteelement mit Durchgangsbohrung, einer Platte und einem durch die Durchgangsbohrung durchgreifenden Verankerungselement. Derartige Platten und Schutzsysteme werden in Verbrennungsanlagen zum Schutz von Kesselrohrwänden vor Rauchgas eingesetzt .The invention relates to a plate for a protection system for a boiler tube wall with a rear, a front and the sides connecting the back and front, and a protection system for a boiler tube wall with a holding element fastened to the boiler tube wall with a through hole, a plate and an anchoring element penetrating through the through hole , Such plates and protection systems are used in incineration plants to protect boiler tube walls from flue gas.
Eine derartige Platte und ein derartiges System sind beispielsweise in der DE 40 07 662 Cl beschrieben. Das beschriebene System weist in horizontaler Reihe an der Kesselrohrwand angeschweißte Haltelemente auf, auf die die Platten abgestützt sind. Aufgrund der Dicke des Halteelements verbleibt somit stets ein horizontaler Spalt zwischen zwei vertikal übereinander angeordneten Platten. Jede Platte wird auf dem Halteelement durch ein Verankerungselement gehalten. Dabei greift das Verankerungselement in eine Aussparung an einer Seite der Platte ein. Beim Einbau der Platte befindet sich das Verankerungselement bereits in einer Durchgangsbohrung des Halteelements, wobei die Platte so eingesetzt wird, dass das Verankerungselement in die Ausnehmung eingreift. Um die Platte an der Kesselrohrwand zu halten, wird sie mittels Mörtel an der Wand befestigt. Ebenfalls werden die Spalten zwischen den Platten und die Aussparungen der Platten mit Mörtel gefüllt.Such a plate and such a system are described for example in DE 40 07 662 Cl. The system described has holding elements welded to the boiler tube wall in a horizontal row on which the plates are supported. Due to the thickness of the holding element, there is always a horizontal gap between two plates arranged vertically one above the other. Each plate is held on the holding element by an anchoring element. The anchoring element engages in a recess on one side of the plate. When the plate is installed, the anchoring element is already in a through hole in the holding element, the plate being inserted in such a way that the anchoring element engages in the recess. In order to hold the plate to the boiler tube wall, it is attached using mortar attached to the wall. The gaps between the plates and the recesses in the plates are also filled with mortar.
Neben einem hohen Montageaufwand, der durch die zwingend notwendige Vermörtelung der Platte bedingt wird, ist an dem bekannten System ferner nachteilig, dass die Montage sehr präzise durchgeführt werden muss. So müssen alle eine Platte tragenden Halteelemente auf exakt der gleichen Höhe angebracht werden, damit die Platte nach dem Einbau nicht schräg steht . Das erfordert, dass die Schweißarbeiten zur Befestigung der Halteelemente sehr präzise durchgeführt werden müssen. Außerdem bestehen erhebliche Teile der Außenfläche des Schutzsystems aus Mörtel, insbesondere die gefüllten Spalte zwischen den Platten. Da der Mörtel poröser als der gebrannte Stein ist, neigt er schneller zur Erosion und Absprengung. Ebenso nachteilig ist, dass die Platte fest mit der Rohrwand verbunden ist und damit keine Möglichkeit zur Bewegung, insbesondere zur Dehnung, hat. Damit entstehen durch Temperaturwechsel Spannungen in der Platte, die zur frühzeitigen Beschädigung der Platte führen.In addition to a high assembly effort, which is due to the absolutely necessary mortaring of the plate, it is also disadvantageous in the known system that the assembly must be carried out very precisely. For example, all holding elements that support a plate must be attached at exactly the same height so that the plate does not stand at an angle after installation. This requires that the welding work for fastening the holding elements must be carried out very precisely. In addition, considerable parts of the outer surface of the protective system consist of mortar, in particular the filled gaps between the plates. Since the mortar is more porous than the fired stone, it tends to erode and crack off more quickly. Another disadvantage is that the plate is firmly connected to the pipe wall and therefore has no possibility of movement, in particular of expansion. This causes stresses in the plate due to temperature changes, which lead to premature damage to the plate.
Der Erfindung liegt das technische Problem zugrunde, das bekannte Schutzsystem zu vereinfachen und standfester zu machen.The invention is based on the technical problem of simplifying the known protection system and making it more stable.
Dieses Problem wird durch eine Platte für ein Schutzsystem für eine Kesselrohrwand mit einer Rückseite, einer Vorderseite und die Rückseite und Vorderseite verbindende Seiten gelöst, wobei - an der Rückseite eine Ausnehmung zur Aufnahme eines Halteelements vorgesehen ist undThis problem is solved by a plate for a protection system for a boiler tube wall with a rear, a front and sides connecting the rear and front, wherein - A recess for receiving a holding element is provided on the back and
- eine Bohrung von einer Seite zur Ausnehmung führt .- A hole leads from one side to the recess.
Besondere Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben.Particular embodiments of the invention are described in the subclaims.
Die erfindungsgemäße Platte weist an ihrer Rückseite eine Ausnehmung zur Aufnahme eines Halteelements auf . In einem Schutzsystem eingebaut wird die Platte somit nicht mit ihrer unteren Seite auf dem Halteelement abgestützt sondern wird mit der Ausnehmung auf das Halteelement aufgehängt. Das Halteelement ist durch die Platte vollständig vom Rauchgas geschützt. Ferner verbleiben bei mehreren neben- bzw. übereinander eingebauten Platten keine Spalte durch die Halteelemente. Die Platten können ohne Spalt direkt aneinander gesetzt werden, so dass zwischen den Platten entweder gar kein oder nur sehr wenig Mörtel- oder Fugenfüllmaterial zur Spaltfüllung eingesetzt wird. Dadurch wird die Standfestigkeit des Schutzsystems erhöht .The plate of the invention has a recess on its rear side for receiving a holding element. Installed in a protection system, the plate is therefore not supported with its lower side on the holding element but is suspended with the recess on the holding element. The holding element is completely protected from the flue gas by the plate. Furthermore, if there are several panels installed next to or on top of each other, no gaps remain through the holding elements. The panels can be placed directly next to each other without a gap, so that either no or very little mortar or joint filling material is used to fill the gap between the panels. This increases the stability of the protection system.
Ferner weist die erfindungsgemäße Platte eine Bohrung auf , die von einer Seite zur Ausnehmung führt . Diese Bohrung dient beim Einbau der Platte der Einführung eines Verankerungselements, das die Platte an dem Halteelement verankert. Da das Verankerungselement von einer Seite aus eingeführt wird, verbleibt eine vollflächige Vorderseite, die im Kontakt mit dem Rauchgas steht . Selbst wenn die Bohrung im eingebauten Zustand mit Mörtel aufgefüllt wird, ist dieser Mörtel nicht im direkten Kontakt mit dem Rauchgas . Die Platten können direkt aufeinander aufliegend eingebaut werden, so dass kein Spalt verbleibt, durch den Rauchgas von der Vorderseite entlang der Seiten strömen könnte.Furthermore, the plate according to the invention has a bore which leads from one side to the recess. When installing the plate, this hole serves to introduce an anchoring element which anchors the plate to the holding element. Since the anchoring element is inserted from one side, a full-surface front surface remains which is in contact with the flue gas. Even if the hole is built in Is filled with mortar, this mortar is not in direct contact with the flue gas. The plates can be installed directly on top of each other so that there is no gap through which flue gas can flow from the front along the sides.
Im Rahmen der vorliegenden Beschreibung der Erfindung wird unter einer Platte jeglicher Körper verstanden, der in Schutzsystemen von Kesselrohrwänden zum Schutz der Kesselrohrwände verwendet wird, nämlich jeglicher Körper, der auf der rauchgaszugewandten Seite der Kesselrohrwand zu deren Schutz vor Rauchgas angebracht wird. Dies sind insbesondere Steine aus feuerfesten Werkstoffen.In the context of the present description of the invention, a plate is understood to mean any body which is used in protective systems of boiler tube walls to protect the boiler tube walls, namely any body which is attached to the side of the boiler tube wall facing the flue gas to protect it from flue gas. These are in particular stones made of refractory materials.
Die Platte kann jegliche beliebige Form haben. Wesentlich ist, dass sie eine definierte Rückseite hat, die im Einbauzustand der Kesselrohrwand zugewandt ist und in die eine Ausnehmung eingebracht werden kann, in der das Halteelement im Einbauzustand durch die Platte von Rauchgaskontakt geschützt wird. Vorderseite und Seiten können beliebig gestaltet sein und nahtlos ineinander übergehen. Vorderseite und Seiten der Platte unterscheiden sich von der Rückseite dadurch, dass sie im Einbauzustand der Kesselröhrwand nicht zugewandt sind. Ihre Form wird durch den Einbauort der Platte bestimmt. Wesentlich ist, dass eine Seite vorgesehen ist, die im Einbauzustand nicht im direkten Kontakt mit dem Rauchgas steht, in die die Bohrung eingebracht wird. Vorzugsweise ist die Platte ein flacher Körper mit einer flachen Vorderseite, senkrecht zu der Vorderseite stehenden, flachen Seiten und einer Rückseite. Dabei ist die Fläche der Vorderseite in der Regel größer als die Fläche einer Seite. Besonders bevorzugt hat die Vorderseite eine rechteckige Form. Denkbar sind aber auch andere Formen (z. B. hexagonale, dreieckige oder oktogonale Formen.The plate can have any shape. It is essential that it has a defined rear side, which faces the boiler tube wall in the installed state and into which a recess can be made, in which the holding element is protected from smoke gas contact by the plate in the installed state. The front and sides can be designed in any way and merge seamlessly. The front and sides of the plate differ from the rear in that they do not face the boiler tube wall when installed. Their shape is determined by the location of the plate. It is essential that a side is provided which, when installed, is not in direct contact with the flue gas into which the bore is made. Preferably, the plate is a flat body with a flat front, flat sides perpendicular to the front and a back. The surface of the front is in the Usually larger than the area of a page. The front side particularly preferably has a rectangular shape. However, other shapes are also conceivable (e.g. hexagonal, triangular or octagonal shapes.
Als Ausnehmung wird jede Konturgebung der Rückseite der Platte verstanden, die ein Einhängen der Platte auf ein von einer Kesselrohrwand abstehendes Halteelement erlaubt. Einhängen bedeutet das Aufstecken der Platte mit ihrer Ausnehmung auf ein Halteelement. Dieses kann, je nach Einbaulage der Platte, von einer senkrechten oder in einem Winkel zur Senkrechten stehenden Kesselrohrwand abstehen. Vorzugsweise hat die Ausnehmung in den Ebenen parallel zur Vorderfläche einen rechteckigen Querschnitt, wobei besonders bevorzugt die an die Rückseite angrenzenden, die Ausnehmung begrenzenden Flächen senkrecht zur Vorderseite verlaufen.A recess is understood to mean any contour of the back of the plate which allows the plate to be hung on a holding element projecting from a boiler tube wall. Hooking in means placing the plate with its recess on a holding element. Depending on the installation position of the plate, this can protrude from a vertical or at an angle to the vertical tube wall. The recess in the planes parallel to the front surface preferably has a rectangular cross section, with the surfaces adjacent to the rear, delimiting the recess, running perpendicular to the front.
Als Bohrung wird jeder Durchbruch der Platte von einer Seite zur Ausnehmung verstanden. Dies kann ein durch tatsächliches Bohren in den Stein erzeugter Durchgang sein. Es kann beispielsweise aber auch eine bereits bei der Herstellung der Grundform der Platte hergestellter Durchläse sein. Wesentlich ist, dass die Bohrung das Durchschieben eines Verankerungselements von der Seite zur Ausnehmung ermöglicht.A hole is understood to mean any breakthrough of the plate from one side to the recess. This can be a passage created by actually drilling into the stone. However, it can also be, for example, a passage already produced during the production of the basic shape of the plate. It is essential that the bore allows an anchoring element to be pushed through from the side to the recess.
Bei der erfindungsgemäßen Platte wird eine besonders gute Stabilität einer aus diesen Platten zusammengesetzten Schutzwand für eine Kesselrohrwand erreicht, wenn eine Seite im einem Winkel von weniger als 90°, beziehungsweise von mehr als 270° zur Vorderseite ausgerichtet ist, insbesondere in einem Winkel von 45° bzw. 315°. Beim Einbau der Platten wird jeweils die abgeschrägte Seite auf eine andere, entgegengesetzt abgeschrägte Seite aufgesetzt, so dass diese abgeschrägten Seiten plan aufeinander liegen. Insbesondere bei Platten, die an der oberen und unteren Seite angeschrägt sind, stützen sich die Platten gegenseitig und wirken einer Rotation der Platte entgegen. Ferner wird durch die Abschrägung der Einbau der Platten vereinfacht. Alternativ zu einer solchen Gärungsfuge können die Platten auch über eine stufenförmige Fuge teilweise überlappend angeordnet sein.In the plate according to the invention, a particularly good stability of a protective wall composed of these plates for a boiler tube wall is achieved if one side is at an angle of less than 90 ° or more than 270 ° to Front is aligned, especially at an angle of 45 ° or 315 °. When installing the panels, the beveled side is placed on another, opposite beveled side, so that these beveled sides lie flat on each other. In particular in the case of plates which are beveled on the upper and lower sides, the plates support one another and counteract rotation of the plate. Furthermore, the installation of the plates is simplified by the bevel. As an alternative to such a fermentation joint, the plates can also be arranged partially overlapping via a step-shaped joint.
Ebenso können die Seiten als im wesentlichen senkrecht zur Vorderseite verlaufende Flächen ausgebildet werden. Die Stabilitätsvorteile und Leichtigkeit des Ein- und Ausbaus der Platte, wie sie bei Platten mit abgeschrägten Seiten erreicht werden, können bei Platten mit senkrecht zur Vorderseite verlaufenden Seiten erreicht werden, wenn diese Seiten eine im wesentlichen parallel zur Vorderseite verlaufende Stufe aufweisen. Ähnlich, wie die gewinkelten Seiten zur Stabilisierung und Positionierung der Platte ineinander greifen, greifen auch Platten mit abgestuften Seiten ineinander.Likewise, the sides can be formed as surfaces that run essentially perpendicular to the front. The stability advantages and ease of installation and removal of the plate, as are achieved with plates with bevelled sides, can be achieved with plates with sides running perpendicular to the front side if these sides have a step running essentially parallel to the front side. Similar to how the angled sides interlock to stabilize and position the panel, panels with stepped sides interlock.
Der Wärmeübergang zwischen dem Rauchgas und der Flüssigkeit in den Rohren der Kesselrohrwand wird verbessert, je dichter die Platte an der Kesselrohrwand anliegt und je schmaler der Spalt zwischen Platte und Kesselröhrwand ist. Deshalb ist es von Vorteil, wenn die Rückseite der Platte an die Form einer Kesselrohrwand angepasst ist, insbesondere halbzylindrische Bereiche für die Rohre und Flächen für die die Rohre verbindenden Rohrflossen, aufweist.The heat transfer between the flue gas and the liquid in the tubes of the boiler tube wall is improved the closer the plate is to the boiler tube wall and the narrower the gap between the plate and the boiler tube wall. It is therefore advantageous if the back of the plate is shaped like a Boiler tube wall is adapted, in particular semi-cylindrical areas for the tubes and surfaces for the tube fins connecting the tubes.
Die Platte kann eine Sackbohrung aufweisen, die von der Ausnehmung fortführt.The plate can have a blind bore that continues from the recess.
Erfindungsgemäß wird zur Lösung des Problems ein Schutzsystem für eine Kesselrohrwand mit einem an der Kesselrohrwand befestigten Halteelement mit Durchgangsbohrung, einer Platte und einem durch die Durchgangsbohrung durchgreifenden Verankerungselement derart ausgebildet, dass die Platte an der der Kesselrohrwand zugewandten Rückseite eine das Halteelement aufnehmende Ausnehmung aufweist, dass die Platte eine Bohrung aufweist, die von einer Seite der Platte zur Ausnehmung führt, und dass ein Ende des Verankerungselements in die Bohrung ragt.According to the invention, a protection system for a boiler tube wall with a holding element fastened to the boiler tube wall with a through hole, a plate and an anchoring element penetrating through the through hole is designed in such a way that the plate has a recess on the rear side facing the boiler tube wall that has a recess that holds the holding element the plate has a bore which leads from one side of the plate to the recess and that one end of the anchoring element projects into the bore.
Halteelemente im Sinne der Erfindung sind jegliche Elemente, die an einer Kesselrohrwand befestigt werden können und die eine mit ihrer Ausnehmung auf sie geschobene Platte tragen können, wenn diese Platte durch ein Verankerungselement in einer Durchgangsbohrung dieses Elements verankert wird. Insbesondere sind die Halteelemente flache, prismenförmige, längliche Stähle, die auf die Kesselrohrwand (Stege) aufgeschweißt werden. Vor allem können die Stähle rechteckige Oberflächen haben, sie können aber auch an zwei einander gegenüberliegenden oder mehreren gegenüberliegenden Flächen trapezförmige Oberflächen haben. Das Haltelement ist bevorzugt an Rohrflossen angebracht, die zwischen den Rohren der Kesselrohrwand angeordnet sind. Insbesondere ist die Längsachse des Halteelements senkrecht zur Oberfläche der Kesselrohrwand, insbesondere der Rohrflosse, angeordnet .Holding elements in the sense of the invention are any elements which can be attached to a boiler tube wall and which can carry a plate pushed with their recess on it if this plate is anchored by an anchoring element in a through bore of this element. In particular, the holding elements are flat, prism-shaped, elongated steels which are welded onto the boiler tube wall (webs). Above all, the steels can have rectangular surfaces, but they can also have trapezoidal surfaces on two opposing surfaces or several opposing surfaces. The holding element is preferably attached to tube fins, which between the tubes of the Boiler tube wall are arranged. In particular, the longitudinal axis of the holding element is arranged perpendicular to the surface of the boiler tube wall, in particular the tube fin.
Die Vorteile der Erfindung werden bei Schutzsystemen erreicht, die nur eine Platte aufweisen. In der Regel wird eine Kesselrohrwand jedoch durch eine Wand von übereinander und nebeneinander angeordneten Platten geschützt. Hier werden die erfindungsgemäßen Vorteile besonders dann erzielt, wenn alle Platten des Schutzsystems nach dem erfindungsgemäßen Prinzip an der Kesselrohrwand befestigt werden. Die Platten können direkt, ohne wesentlichen Spalt auf- und nebeneinander gesetzt sein. Sie können aber auch mit Spalt gesetzt sein. Der möglicherweise bestehende Spalt zwischen den Platten, der Spalt zwischen einer Platte und der Kesselröhrwand, die Bohrung, sowie die Ausnehmung können zur Verbesserung des Wärmeübergangs und des Schutzes vor Rauchgas mit Mörtel gefüllt sein. Dabei können die Platten im montierten Zustand auch mit Beton oder Mörtel hintergossen werden. Möglich ist jedoch auch eine mörtelfreie Verlegung.The advantages of the invention are achieved in protective systems which have only one plate. As a rule, however, a boiler tube wall is protected by a wall of plates arranged one above the other and next to one another. The advantages according to the invention are achieved here in particular when all the plates of the protection system are fastened to the boiler tube wall according to the principle according to the invention. The plates can be placed directly on and next to one another without a substantial gap. But they can also be set with a gap. The possibly existing gap between the plates, the gap between a plate and the boiler tube wall, the bore and the recess can be filled with mortar to improve the heat transfer and the protection against flue gas. When assembled, the panels can also be back-poured with concrete or mortar. However, mortar-free installation is also possible.
In besonders vorteilhafter Weise ist der Querschnitt der Ausnehmung in jeder Ebene senkrecht zur Längsachse des Halteelements um ein Vielfaches größer, als der Querschnitt des Halteelements in der gleichen Ebene. Besonders bei einer quaderförmiger Ausnehmung ist die Fläche eines durch an die Rückseite angrenzende Begrenzungsflächen der Ausnehmung umfassten Rechtecks um ein Vielfaches größer, als der in der gleichen Ebene liegende Querschnitt des Halteelements . Dies ermöglicht es, dass das Haltelement nicht genau an der Sollposition auf der Kesselrohrwand angebracht werden muss. Auch bei einem etwas neben der Sollposition angebrachten Halteelement lässt sich bei dieser besonderen Ausgestaltung des Systems die Platte ohne weiteres auf das Halteelement aufschieben. Insbesondere bevorzugt hat die Ausnehmung die gleiche Breite wie ein flach ausgebildetes Haltelement, jedoch ist die Ausnehmung länger, als die Dicke des Haltelements. Die Platte kann dann, auf das Haltelement aufgeschoben, senkrecht zur Längsachse des Halteelements in Längsrichtung der Ausnehmung in die gewünschte Position geschoben werden. Bevorzugt ist die so definierte Fläche der Ausnehmung um mehr als das eineinhalbfache, insbesondere um mehr als das dreifache größer als der Querschnitt des Halteelements.In a particularly advantageous manner, the cross section of the recess in each plane perpendicular to the longitudinal axis of the holding element is many times larger than the cross section of the holding element in the same plane. Particularly in the case of a rectangular recess, the area of a rectangle surrounded by boundary surfaces of the recess adjoining the rear is many times larger than the cross section of the holding element lying in the same plane. this makes possible that the holding element does not have to be attached exactly to the desired position on the boiler tube wall. Even with a holding element attached somewhat next to the desired position, the plate can be easily pushed onto the holding element in this particular embodiment of the system. The recess particularly preferably has the same width as a flat holding element, but the recess is longer than the thickness of the holding element. The plate can then, when pushed onto the holding element, be pushed into the desired position perpendicular to the longitudinal axis of the holding element in the longitudinal direction of the recess. The area of the recess defined in this way is preferably more than one and a half times, in particular more than three times larger than the cross section of the holding element.
Der Halt der Platte an dem Halteelement wird verbessert, wenn eine Sackbohrung von der Ausnehmung fortführt und ein weiteres Ende des Verankerungselements in die Sackbohrung ragt . Insbesondere bei stiftfδrmig ausgebildeten Verankerungselementen kann das Verankerungselement durch die Bohrung der Platte und die Durchgangsbohrung des Halteelements bis in die Sackbohrung vorgeschoben werden. Dadurch wird eine stabile Verankerung erzielt, da das Verankerungselement an beiden Enden in der Platte steckt. In besonders vorteilhafter Weise wird ein zylindrisch oder konisch ausgebildeter Stift eingesetzt. Hierdurch wird ein besonders guter Sitz des Stiftes in der Sackbohrung gewährleistet. Das Verankerungselement kann beispielsweise aus Metall oder Keramik hergestellt sein. Die Stabilität der Verankerung ist besonders groß, wenn das Verankerungselement keilförmig ausgebildet ist .The hold of the plate on the holding element is improved if a blind hole continues from the recess and a further end of the anchoring element projects into the blind hole. In particular in the case of pin-shaped anchoring elements, the anchoring element can be pushed through the hole in the plate and the through-hole of the holding element into the blind hole. This ensures stable anchoring because the anchoring element is inserted into the plate at both ends. In a particularly advantageous manner, a cylindrical or conical pin is used. This ensures a particularly good fit of the pin in the blind hole. The anchoring element can be made of metal or ceramic, for example. The stability of the anchoring is particularly great if the anchoring element is wedge-shaped.
Machfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Darin zeigtIn the following, the invention is explained on the basis of a drawing which represents only one exemplary embodiment. In it shows
Fig. 1 ein Schutzsystems für eine Kesselröhrwand mit einer Platte in einer perspektivischen, teilweise geschnittenen Ansicht undFig. 1 shows a protection system for a boiler tube wall with a plate in a perspective, partially sectioned view
Fig. 2 das Schutzsystem aus Fig. 1 in einer Explosionsdarstellung .Fig. 2 shows the protection system of Fig. 1 in an exploded view.
Eine Platte 1 ist über ein Verankerungselement 2 mit einem Halteelement 3 verbunden. Das Haltelement 3 ist auf die Rohrflosse 4 einer Kesselrohrwand 5 aufgeschweißt. Das Halteelement 3 sitzt in einer Ausnehmung 6 der Platte 1. Das Verankerungselement 2 steckt in einer im Bereich der Ausnehmung 6 in dem Halteelement 3 angeordneten Durchgangsbohrung 7. Ein Ende 2a des Verankerungselements 2 ragt in eine Bohrung 8, die von der Ausnehmung 6 zu einer Seite 9 der Platte 1 führt. Das andere Ende 2b des stiftartig ausgebildeten Verankerungselements 2 ragt in eine Sackbohrung 10, die von der Ausnehmung 6 fortführt.A plate 1 is connected to a holding element 3 via an anchoring element 2. The holding element 3 is welded onto the tube fin 4 of a boiler tube wall 5. The holding element 3 is seated in a recess 6 of the plate 1. The anchoring element 2 is inserted in a through hole 7 arranged in the region of the recess 6 in the holding element 3. One end 2a of the anchoring element 2 projects into a hole 8 which extends from the recess 6 to one Page 9 of plate 1 leads. The other end 2b of the pin-shaped anchoring element 2 protrudes into a blind hole 10 which continues from the recess 6.
Die Platte 1 weist eine Vorderseite 11, eine Rückseite 12 sowie neben der Seite 9 weitere die Vorderseite 11 und Rückseite 12 verbindende Seiten 9a, 9b auf (die Seite 9c ist in der Fig. 2 zu erkennen) . Die Rückseite 12 ist an die Form der Kesselrohrwand 5 angepasst . Sie weist für die Rohre 13 halbzylinderförmige Bereiche 14 auf und eine Fläche 15, die an die Form der Rohrflosse 4 angepasst ist. Die Seiten 9, 9a, 9b, 9c bestehen aus senkrecht zur Vorderseite 11 verlaufenden Flächen 16,17 und einer zur Vorderseite 11 im wesentlichen parallelen Stufe 18. Die Übergange zwischen den Flächen 16,17 und der Stufe 18 sind abgerundet. Wie in Fig. 2 ersichtlich ist die Stufe 18 an zwei Seiten 9b, 9c der Platte 1 von der Vorderseite 11 gesehen zur Plattenmitte hin und an den diesen Seiten 9b, 9c gegenüberliegenden Seiten 9,9a von der Plattenmitte fort ausgerichtet .The plate 1 has a front side 11, a rear side 12 and, in addition to the side 9, further sides 9a, 9b connecting the front side 11 and rear side 12 (the side 9c can be seen in FIG. 2). The backside 12 is adapted to the shape of the boiler tube wall 5. It has semi-cylindrical regions 14 for the tubes 13 and a surface 15 which is adapted to the shape of the tube fin 4. The sides 9, 9a, 9b, 9c consist of surfaces 16, 17 running perpendicular to the front 11 and a step 18 which is essentially parallel to the front 11. The transitions between the surfaces 16, 17 and the step 18 are rounded. As can be seen in FIG. 2, the step 18 is oriented on two sides 9b, 9c of the plate 1 from the front 11 towards the center of the plate and on the sides 9,9a opposite these sides 9b, 9c from the center of the plate.
Das Halteelement 3 ist als flacher, länglicher Steg ausgebildet, dessen Längsachse senkrecht zur Rohrflosse 4 und damit der Kesselrohrwand 5 ausgerichtet ist. An seinem äußeren Ende ist das Haltelement 3 abgerundet.The holding element 3 is designed as a flat, elongated web, the longitudinal axis of which is oriented perpendicular to the tube fin 4 and thus the boiler tube wall 5. The holding element 3 is rounded at its outer end.
Die Fläche der Ausnehmung 6 hat in einer zur Vorderseite 11 parallelen Ebene, durch an die Rückseite 12 angrenzende Begrenzungsflächen begrenzt die Form eines Rechtecks. An das äußere Ende des Halteelements 3 angepasst ist der Grund der Ausnehmung 6 halbzylindrisch ausgebildet. Die Breite B der Ausnehmung 6 ist unwesentlich größer als die Breite B des Halteelements 3, um ein einfaches Einführen des Halteelements 3 in die Ausnehmung 6 zu ermöglichen. Jedoch ist die Länge L der Ausnehmung um ein Vielfaches größer als die Dicke d des Halteelements 3.The surface of the recess 6 has the shape of a rectangle in a plane parallel to the front side 11, bounded by boundary surfaces adjacent to the rear side 12. Adapted to the outer end of the holding element 3, the base of the recess 6 is semi-cylindrical. The width B of the recess 6 is insignificantly larger than the width B of the holding element 3 in order to enable the holding element 3 to be inserted easily into the recess 6. However, the length L of the recess is many times greater than the thickness d of the holding element 3.
Zur Montage der Platte 1 wird diese so auf das Halteelement 3 gehängt, dass das Halteelement 3 in die Ausnehmung 6 eingeführt wird. Dabei sitzt die Platte 1 mit ihrer unteren Seite 9b auf der oberen Seite der nächst unteren, nicht dargestellten Platte und mit ihrer rechten Seite 9c auf der linken Seite der nächst rechten, ebenfalls nicht dargestellten Platte auf. Die in den Seiten der Platten ausgebildeten Stufen führen zu einem passgenauen Sitz der Platten. Dabei kann das Halteelement 3 jedoch etwas oberhalb oder unterhalb der gewünschten Position auf der Rohrflosse 4 angebracht sein. Denn auch neben der gewünschten Position kann das Halteelement 3 aufgrund der vielfach größeren Länge L der Ausnehmung 6 im Verhältnis zur Dicke d des Halteelements 3 gut in die Ausnehmung 6 eingeführt werden. Ein Versatz des Halteelements 3 in rechte oder linke Richtung tritt nicht auf, da die Breite B des Halteelementes 3 dem Zwischenraum zwischen den Rohren 13 der Kesselrohrwand 5 entspricht und damit in seiner Position durch diese begrenzt wird. Die auf den benachbarten Platten aufsitzende Platte 1 wird durch Einführen des Verankerungselements 2 in die Bohrung 8 und anschließendem Durchstoßen der Durchgangsbohrung 7 sowie dem Einführen in die Sackbohrung 10 fest mit dem Halteelement 3 und damit mit der Kesselröhrwand 5 verbunden.To assemble the plate 1, it is hung on the holding element 3 in such a way that the holding element 3 is inserted into the recess 6. The plate 1 sits with its lower side 9b on the upper side of the next lower plate, not shown, and with its right side 9c on the left side of the next right plate, also not shown. The steps in the sides of the panels ensure that the panels fit snugly. The holding element 3 can, however, be attached somewhat above or below the desired position on the tubular fin 4. Because, in addition to the desired position, the holding element 3 can also be inserted well into the recess 6 due to the much longer length L of the recess 6 in relation to the thickness d of the holding element 3. An offset of the holding element 3 in the right or left direction does not occur, since the width B of the holding element 3 corresponds to the space between the tubes 13 of the boiler tube wall 5 and its position is therefore limited by this. The plate 1 seated on the adjacent plates is firmly connected to the holding element 3 and thus to the boiler tube wall 5 by inserting the anchoring element 2 into the hole 8 and then piercing the through hole 7 and inserting it into the blind hole 10.
Anstelle auf der jeweils unteren Platte aufzusitzen kann bei vertikaler Einbaulage die Platte 1 bei der Montage auch auf dem Halteelement 3 aufgehängt werden. Dann sitzt die in Längsrichtung L obere, begrenzende Fläche der Ausnehmung 6 auf der oberen Fläche des Halteelements 3 auf (vgl. Fig.l). Der möglicherweise zwischen der so auf dem Halteelement 3 aufgehängten Platte 1 und der nächst unteren Platte verbleibende Spalt wird mit Mörtel gefüllt. Instead of sitting on the lower plate in each case, the plate 1 can also be suspended on the holding element 3 during assembly in the vertical installation position. Then the upper, in the longitudinal direction L, delimiting surface of the recess 6 rests on the upper surface of the holding element 3 (cf. FIG. 1). The gap possibly remaining between the plate 1 thus suspended on the holding element 3 and the next lower plate is filled with mortar.

Claims

Patentansprüche claims
1. Platte für ein Schutzsystem für eine Kesselrohrwand (5) mit einer Rückseite (12) , einer Vorderseite (11) und die Rückseite (12) und Vorderseite (11) verbindende Seiten (9, 9a, 9b, 9c) , dadurch gekennzeichnet,1. Plate for a protection system for a boiler tube wall (5) with a rear side (12), a front side (11) and the rear side (12) and front side (11) connecting sides (9, 9a, 9b, 9c), characterized in that
- dass an der Rückseite (12) eine Ausnehmung (6) zur Aufnahme eines Halteelements (6) vorgesehen ist,- That a recess (6) for receiving a holding element (6) is provided on the rear side (12),
- dass eine Bohrung (8) von einer Seite (9) zur Ausnehmung (6) führt .- That a bore (8) from one side (9) leads to the recess (6).
2. Platte nach Anspruch 1, dadurch gekennzeichnet, dass eine Seite als Fläche ausgebildet und in einem Winkel von weniger als 90° zur Vorderseite ausgerichtet ist.2. Plate according to claim 1, characterized in that one side is formed as a surface and is oriented at an angle of less than 90 ° to the front.
3. Platte nach Anspruch 1, dadurch gekennzeichnet, dass eine Seite (9, 9a, 9b, 9c) als im wesentlichen senkrecht zur Vorderseite (11) verlaufende Fläche (16,17) ausgebildet ist.3. Plate according to claim 1, characterized in that one side (9, 9a, 9b, 9c) is designed as a surface (16, 17) extending essentially perpendicular to the front side (11).
4. Platte nach Anspruch 3, dadurch gekennzeichnet, dass eine Seite (9, 9a, 9b, 9c) eine im wesentlichen parallel zur Vorderseite (11) verlaufende Stufe (18) aufweist. 4. Plate according to claim 3, characterized in that one side (9, 9a, 9b, 9c) has a step (18) running essentially parallel to the front side (11).
5. Platte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Rückseite (12) an die Form einer Kesselrohrwand (5) angepasst ist.5. Plate according to one of claims 1 to 4, characterized in that the back (12) is adapted to the shape of a boiler tube wall (5).
6. Schutzsystem für eine Kesselrohrwand (5) mit einem an der Kesselrohrwand (5) befestigten Halteelement (3) mit einer Durchgangsbohrung (7) , einer Platte (1) und einem durch die Durchgangsbohrung (7) durchgreifenden Verankerungselement (2) , dadurch gekennzeichnet,6. Protection system for a boiler tube wall (5) with a holding element (3) fastened to the boiler tube wall (5) with a through hole (7), a plate (1) and an anchoring element (2) penetrating through the through hole (7), characterized .
- dass die Platte (1) an der der Kesselrohrwand (5) zugewandten Rückseite (12) eine das Halteelement (3) aufnehmende Ausnehmung (6) aufweist,- That the plate (1) on the boiler tube wall (5) facing the rear side (12) has a holding element (3) receiving recess (6),
- dass die Platte (1) eine Bohrung (8) aufweist, die von einer Seite (9) der Platte (1) zur Ausnehmung- That the plate (1) has a bore (8) from one side (9) of the plate (1) to the recess
(6) führt , und(6) leads, and
- dass ein Ende (2a) des Verankerungselements (2) in die Bohrung (8) ragt.- That one end (2a) of the anchoring element (2) protrudes into the bore (8).
7. Schutzsystem nach Anspruch 6, dadurch gekennzeichnet, dass der Querschnitt der Ausnehmung (6) in jeder Ebene senkrecht zur Längsachse des Halteelements (3) um ein Vielfaches größer ist, als der Querschnitt des Halteelements (3) in der gleichen Ebene.7. Protection system according to claim 6, characterized in that the cross section of the recess (6) in each plane perpendicular to the longitudinal axis of the holding element (3) is many times larger than the cross section of the holding element (3) in the same plane.
8. Schutzsystem nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass eine Sackbohrung (10) von der Ausnehmung (6) fortführt und dass ein weiteres Ende8. Protection system according to claim 6 or 7, characterized in that a blind hole (10) continues from the recess (6) and that a further end
(2b) des Verankerungselements (2) in die Sackbohrung (10) ragt. (2b) of the anchoring element (2) protrudes into the blind bore (10).
9. Schutzsystem nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass das Verankerungselement (2) konisch oder zylindrisch ausgebildet ist.9. Protection system according to one of claims 6 to 8, characterized in that the anchoring element (2) is conical or cylindrical.
10. Schutzsystem nach einem der Ansprüche 6 bis 9 mit einer Platte (1) nach einem der Ansprüche 1 bis 5. 10. Protection system according to one of claims 6 to 9 with a plate (1) according to one of claims 1 to 5.
EP03704487A 2002-02-02 2003-01-29 Board for a protection system for a boiler tube wall and protection system for a boiler tube wall Expired - Lifetime EP1470367B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10204240A DE10204240B4 (en) 2002-02-02 2002-02-02 Plate for a protection system for a boiler tube wall and protection system for a boiler tube wall
DE10204240 2002-02-02
PCT/EP2003/000871 WO2003067154A1 (en) 2002-02-02 2003-01-29 Board for a protection system for a boiler tube wall and protection system for a boiler tube wall

Publications (2)

Publication Number Publication Date
EP1470367A1 true EP1470367A1 (en) 2004-10-27
EP1470367B1 EP1470367B1 (en) 2007-10-03

Family

ID=27588267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03704487A Expired - Lifetime EP1470367B1 (en) 2002-02-02 2003-01-29 Board for a protection system for a boiler tube wall and protection system for a boiler tube wall

Country Status (5)

Country Link
EP (1) EP1470367B1 (en)
AT (1) ATE374907T1 (en)
AU (1) AU2003206794A1 (en)
DE (2) DE10204240B4 (en)
WO (1) WO2003067154A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2356914T3 (en) * 2006-07-25 2011-04-14 Siemens Aktiengesellschaft DISPLAY OF HEATING DISPLAY, IN PARTICULAR FOR A GAS TURBINE.
DE102009039390A1 (en) * 2009-08-31 2011-03-03 Saint-Gobain Industriekeramik Düsseldorf Gmbh Corrosion protection body
DE102013018936B4 (en) 2013-11-12 2022-01-13 Saint-Gobain Industriekeramik Rödental GmbH furnace wall arrangement
LU100107B1 (en) 2017-02-22 2018-10-02 Wurth Paul Sa Cooling Panel for Metallurgical Furnace
KR102012499B1 (en) * 2018-02-22 2019-09-20 두산중공업 주식회사 Boiler Spiral Wall Supporting Structure For Thermal Power Plants
JP2022150907A (en) * 2021-03-26 2022-10-07 日本碍子株式会社 Refractory tile and protective refractory tile system

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Publication number Priority date Publication date Assignee Title
FR1251356A (en) * 1959-12-08 1961-01-20 Electro Refractaire suspended vault elements for industrial furnaces and other applications
DE4007662C1 (en) * 1990-03-10 1991-05-23 Juenger + Graeter Gmbh & Co. Feuerfestbau, 6830 Schwetzingen, De
DE4108754A1 (en) * 1991-03-18 1992-09-24 Schweiss Service Detlef Koeste Boiler tube cladding plate supporting lug - has flat portion under plate and foot stud welded to tube
DE19804311A1 (en) * 1998-02-04 1999-08-05 Juenger & Graeter Gmbh Feuerfe Anchoring device for stone slabs covering steel tube units
WO2000057106A1 (en) * 1999-03-19 2000-09-28 Saint-Gobain Ceramics And Plastics, Inc. Refractory tile system for boiler tube/heat exchanger protection

Non-Patent Citations (1)

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Title
See references of WO03067154A1 *

Also Published As

Publication number Publication date
DE10204240B4 (en) 2004-07-01
WO2003067154A1 (en) 2003-08-14
DE50308319D1 (en) 2007-11-15
AU2003206794A1 (en) 2003-09-02
EP1470367B1 (en) 2007-10-03
ATE374907T1 (en) 2007-10-15
DE10204240A1 (en) 2003-08-14

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