EP1191285A1 - Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz - Google Patents

Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz Download PDF

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Publication number
EP1191285A1
EP1191285A1 EP00120788A EP00120788A EP1191285A1 EP 1191285 A1 EP1191285 A1 EP 1191285A1 EP 00120788 A EP00120788 A EP 00120788A EP 00120788 A EP00120788 A EP 00120788A EP 1191285 A1 EP1191285 A1 EP 1191285A1
Authority
EP
European Patent Office
Prior art keywords
heat shield
combustion chamber
tension element
shield brick
brick
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.)
Withdrawn
Application number
EP00120788A
Other languages
German (de)
English (en)
Inventor
Daniel Dr. Hofmann
Paul-Heinz Jeppel
Hans Maghon
Uwe Dr. Rettig
Milan Schmahl
Christine Dr. Taut
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP00120788A priority Critical patent/EP1191285A1/fr
Priority to US10/380,969 priority patent/US6832484B2/en
Priority to PCT/EP2001/010790 priority patent/WO2002025173A1/fr
Priority to EP01969734A priority patent/EP1319154A1/fr
Priority to CA002423196A priority patent/CA2423196C/fr
Publication of EP1191285A1 publication Critical patent/EP1191285A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/002—Wall structures
    • 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
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/007—Continuous combustion chambers using liquid or gaseous fuel constructed mainly of ceramic components
    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00012—Details of sealing devices
    • 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
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/06—Composite bricks or blocks, e.g. panels, modules
    • F27D1/063—Individual composite bricks or blocks

Definitions

  • the invention relates to a heat shield brick, in particular for lining a combustion chamber wall, with a hot one Medium exposed hot side, one opposite the hot side Wall side and one on the hot side and the wall side adjacent perimeter side that is a perimeter face having.
  • the invention further relates to a combustion chamber with an internal combustion chamber lining and a gas turbine.
  • a thermally and / or thermomechanically highly stressed Combustion chamber such as a kiln, a hot gas duct or a combustion chamber of a gas turbine, in which a hot medium is generated and / or guided, is to protect against too high thermal stress with an appropriate lining Mistake.
  • the lining usually consists of heat-resistant material and protects a wall of the combustion chamber before direct contact with the hot medium and the associated severe thermal stress.
  • U.S. Patent No. 4,840,131 relates to an attachment of ceramic lining elements on a wall of an oven.
  • a rail system which is attached to the wall and has a plurality of ceramic rail elements, intended. Due to the rail system, the lining elements to be held on the wall.
  • Between one Lining element and the wall of the furnace can be further ceramic layers may be provided, including a layer off loose, partially compressed ceramic fibers, these Layer at least about the same thickness as the ceramic Lining elements or has a greater thickness.
  • the Lining elements have a rectangular shape planar surface and consist of a heat insulating refractory ceramic fiber material.
  • U.S. Patent 4,835,831 also deals with application a refractory lining on a wall of a Oven, especially a vertically arranged wall.
  • a refractory lining on a wall of a Oven especially a vertically arranged wall.
  • On the Metallic wall of the furnace is made of glass, ceramic or Mineral fiber existing layer applied. This layer is by metal brackets or by glue on the wall attached.
  • a wire mesh network is on this layer honeycomb mesh applied. The mesh network also serves securing the layer of ceramic fibers against a falling down.
  • the layer attached in this way is by means of a suitable closed spraying method Refractory surface applied. With the described method is largely avoided during of the refractory particles struck upon spraying as with a direct spray on the refractory particles on the metallic wall would be the case.
  • a ceramic lining of the walls of thermally highly stressed combustion chambers is described in EP 0 724 116 A2.
  • the lining consists of wall elements made of high-temperature-resistant structural ceramics, such as silicon carbide (SiC) or silicon nitride (Si 3 N 4 ).
  • the wall elements are mechanically fastened by means of a central fastening bolt to a metallic support structure (wall) of the combustion chamber.
  • a thick thermal insulation layer is provided between the wall element and the wall of the combustion chamber, so that the wall element is appropriately spaced from the wall of the combustion chamber.
  • the insulation layer which is about three times thicker than the wall element, consists of ceramic fiber material that is prefabricated in blocks. The dimensions and the external shape of the wall elements can be adapted to the geometry of the room to be lined.
  • the Lining consists of heat shield elements that are mechanical are held on a metallic wall of the combustion chamber.
  • the heat shield elements directly touch the metallic wall.
  • To avoid excessive heating of the wall, e.g. due to a direct heat transfer from the heat shield element or by introducing hot medium into the through the adjacent heat shield elements are formed Column, that of the wall of the combustion chamber and the heat shield element formed space with cooling air, the so-called Sealing air applied.
  • the sealing air prevents penetration from hot medium to wall and cools at the same time the wall and the heat shield element.
  • WO 99/47874 relates to a wall segment for a combustion chamber and a combustion chamber of a gas turbine.
  • a Wall segment for a combustion chamber which with a hot Fluid, e.g. a hot gas that can be acted upon with a metallic one Support structure and one on the metallic support structure attached heat protection element specified.
  • a hot Fluid e.g. a hot gas that can be acted upon with a metallic one Support structure and one on the metallic support structure attached heat protection element specified.
  • a hot Fluid e.g. a hot gas that can be acted upon with a metallic one Support structure and one on the metallic support structure attached heat protection element specified.
  • a deformable separating layer Between the metallic support structure and the heat protection element inserted a deformable separating layer, the possible relative movements of the heat protection element and the support structure and should compensate.
  • Such relative movements can for example in the combustion chamber of a gas turbine, in particular an annular combustion chamber due to different thermal expansion behavior of the materials used or due to pulsations
  • the interface can cause production-related unevenness on the supporting structure and / or the heat protection element that is local to one compensate for unfavorable selective force input.
  • the invention is based on the observation that, in particular ceramic, heat shield stones their necessary flexibility with regard to thermal expansion is often insufficiently secured against mechanical loads, such as shocks or vibrations.
  • the invention is accordingly based on the object Heat shield stone indicate, which both with regard unlimited thermal expansion as well stability against mechanical, especially shock-like, Guarantees high operational reliability.
  • Another object of the invention is to provide a Combustion chamber with an internal combustion chamber lining as well the specification of a gas turbine with a combustion chamber.
  • the object directed at a heat shield stone is invented solved by a heat shield stone, in particular for lining a combustion chamber wall, with a hot one Medium exposed hot side, one opposite the hot side Wall side and one on the hot side and the wall side adjacent perimeter side that is a perimeter face has, characterized in that on the peripheral side a tension element biased in the circumferential direction is provided where a compressive stress is normal to the peripheral side surface is produced.
  • the invention shows a completely new concept, Heat shield stones against high accelerations as a result Securing shocks or vibrations permanently.
  • the invention is already based on the knowledge that combustion chamber stones, as usually used to line a combustion chamber wall be used by stationary and / or transient Vibrations in the combustion chamber wall to corresponding Vibrations are excited.
  • significant accelerations above one Limit acceleration occur, taking the heat shield stones lift off the combustion chamber wall and then again crack open.
  • Such a serve on the massive or too partially dampened combustion chamber wall leads to very high forces on the heat shield stones and can cause considerable damage, e.g. Lead to breakage of this.
  • the tension element holds the Heat shield stone together, so to speak, and secures it on the one hand against material cracks and, on the other hand, above all compared to a complete material breakdown. additionally the risk of loosening or falling out of smaller or larger fragments in the event of a possible Effectively countered material tear.
  • the tension element on the circumferential side of the Heat shield stones are advantageously vibrations and / or shock loads with a component normal to the peripheral side surface attenuated.
  • the tension element can be the damping constant adjusted according to the occurring loads become.
  • shock loads normal to the circumferential side surface can, for example, when arranging several heat shield stones due to the relative movement of adjacent heat shield stones occur. This damping can be used for a longer period of the heat shield stone can be guaranteed.
  • the heat shield brick with the tension element there is still the advantage of a problem-free Prefabrication and easy assembly of the heat shield brick, for example for mounting in a combustion chamber wall.
  • the tension element is simply attached to the circumferential side and preloaded in the circumferential direction depending on the requirement.
  • Separate damping and / or securing elements, such as to find them in addition with conventional heat shield stones are required over the heat shield brick of the invention a considerably larger assembly and adjustment effort.
  • the heat shield stone may only need to be revised be replaced, but not additional securing elements. This high flexibility on the one hand and the achievable Durability of the heat shield brick on the other hand are also from an economic point of view special advantage.
  • revision or maintenance intervals for the heat shield stone for example with a Use in a combustion chamber of a gas turbine are extended.
  • revision or maintenance intervals for the heat shield stone for example with a Use in a combustion chamber of a gas turbine are extended.
  • a broken heat shield brick operation for the revision of the system was not immediately discontinued be because of the increased passive safety continued operation up to the regular revision interval or beyond that.
  • the compressive stress is normal to the peripheral side surface is generated by appropriate bias of the tension element adjustable.
  • the tension element extends at least in regions in the circumferential direction.
  • the heat shield brick for example in Shape of prisms with a polygonal base, can on the peripheral side that has the peripheral side surface, different areas can be formed. So that the tension element for Increase the passive safety of the combustion chamber brick Can fully unfold effect, it makes sense that the tension element at least in certain areas, in particular also across areas, extends in the circumferential direction. So can a corresponding compressive stress in an area normal to Circumferential side surface are generated.
  • a plurality of tension elements are preferably provided.
  • the order and design of the tension elements on the peripheral side can be very flexible by using several pulling elements be made.
  • By using multiple tension elements can be critical areas of the heat shield brick, for example Corners or edges in which a tear or breakthrough or would be expected to remove any fragments, be backed up in a targeted manner. The operational safety of the heat shield brick is thereby further increased.
  • Tension element the peripheral side surface completely.
  • This Configuration becomes a securing normal force on the peripheral side surface over the entire circumference of the heat shield brick guaranteed. It becomes a closed one, so to speak Ring closure reached, with the heat shield stone as a whole through the locally directed inside the heat shield stone Forces are extensively passively secured in an advantageous manner is.
  • Such a tension element, which the peripheral side surface completely encloses this can guarantee.
  • several of these are complete traction elements enclosing the peripheral side surface mountable.
  • the tension element preferably surrounds the peripheral surface several times.
  • a tensile element enclosing the peripheral surface several times increases the securing effect of the tension element accordingly many times, the normal to the circumferential side surface increase directed security forces.
  • the traction element forms a multiple, so to speak Reinforcement of the heat shield brick on the peripheral side. This multiple protection ensures particularly high operational reliability achieved with those already discussed above economic benefits.
  • the peripheral side has a peripheral groove, in which the tension element engages.
  • the circumferential groove is there advantageously over the entire circumference on the circumferential side formed, for example by appropriate material-removing Processing the heat shield brick or by shaping the circumferential groove in the manufacture of the heat shield brick from a, for example ceramic, molding compound.
  • the circumferential groove over the entire circumference of the heat shield brick.
  • the circumferential groove is not over the full circumference of the heat shield stone is formed, but only in a selectable section of the peripheral page.
  • At least one further circumferential groove is provided, which is spaced from the circumferential groove, wherein a tension element engages in the further circumferential groove.
  • the circumferential groove can, for example, on the hot side of the combustion chamber brick facing end of the circumferential side may be provided, while the further circumferential groove on the side facing the wall End of the peripheral page is provided.
  • the tension element is preferably in the form of a cord or band, in particular braided or woven, designed.
  • an adjustable tensile force by means of preload Cord or the tape optionally have a certain elasticity.
  • a wire or wire mesh can also be used as a tension element Question.
  • the traction element can be largely conventional available intermediate products can be used, which the Realization of the heat shield brick with the tension element facilitated and also in terms of cost very limited use makes it seem interesting.
  • Retrofitting is also advantageously more conventional Heat shield stones possible according to the new concept.
  • the tension element consists of a ceramic material, in particular of a ceramic fiber material.
  • Ceramic material is resistant to high temperatures and is resistant to oxidation and / or corrosion and is therefore ideally suited for use with a heat shield brick in a combustion chamber.
  • Cords and / or tapes preferably consist of ceramic fibers which are suitable for use at up to 1200 ° C.
  • the chemical composition of these fibers is, for example, 62% by weight of Al 2 O 3 , 24% by weight of SiO 2 and 14% by weight of B 2 O 3 .
  • the fibers are composed of a large number of individual filaments, the filaments having a diameter of approximately 10 to 12 ⁇ m.
  • the maximum crystallite size for these ceramic fibers is typically 500 nm.
  • the ceramic fiber material can be used to easily produce fabrics, knitted fabrics or braids of the desired size and thickness, or else cords or ribbons. With a tension element designed in this way, a permanent securing of the heat shield brick is ensured even at very high operating temperatures, such as occur, for example, in a combustion chamber of a gas turbine.
  • the traction element is preferably at least partially with the heat shield brick bonded.
  • glue an additional Securing the tension element against a possible one Removed reached and the durability accordingly elevated.
  • gluing the tension element to the heat shield brick can be a conventional adhesive as well as a high temperature resistant adhesive are used.
  • Can too Silicate-based adhesives are used, which are excellent Adhesive properties and great temperature resistance exhibit. It proves to be particularly advantageous with the Connection the use of ceramic or metallic Materials for the tension element, especially in the case of a ceramic one Cord or a ceramic tape because of this the fabric structure has a certain air permeability has (porosity), which is a good connection of the tension element transported with the heat shield stone.
  • the gluing is special effective if configured with a circumferential groove is selected, in which a tension element engages.
  • This can the adhesive can be inserted into the circumferential groove for gluing, whereby a particularly secure connection can be established is.
  • the adhesive can be locally at different Places the circumferential groove or the circumferential groove, for example in the bottom of the groove, in areas or completely wet.
  • the traction element is, so to speak, glued integral part of the heat shield stone, the Removable gluing or, if desired, for a revision case can be carried out inextricably.
  • the heat shield brick preferably consists of a ceramic Base material, in particular made of a refractory ceramic.
  • a ceramic as the base material for the heat shield brick is the use of the heat shield stone up to very high Guaranteed temperatures, while being oxidative and / or corrosive attacks, such as those applied the hot side of the heat shield brick with a hot medium, e.g. a hot gas, largely harmless to are the heat shield stone.
  • the tension element is advantageous with the ceramic base material of the heat shield brick easy to connect.
  • the fixed connection can also, as already addressed above, designed as a releasable connection his.
  • attaching is also an option the tension element by means of suitable fastening elements the circumferential side, e.g.
  • the heat shield brick is advantageous designed in a kind of composite with the tension element. This is a compact design and structure of the Heat shield stones given an extraordinarily large Durability and passive safety even with large ones has thermal and / or mechanical loads. This is of great advantage when using the heat shield brick in a combustion chamber because even after a crack or material tear through the heat shield function of the heat shield brick is still guaranteed, especially safe no fragments can get into the combustion chamber.
  • the object directed to a combustion chamber is achieved according to the invention solved by a combustion chamber with an inner combustion chamber lining, the heat shield stones according to the above Has designs.
  • the object directed to a gas turbine is achieved according to the invention solved by a gas turbine with such a combustion chamber.
  • the heat shield brick 1 shows a perspective view of a heat shield brick 1.
  • the heat shield brick 1 has a hot side 3 and a wall side 5 opposite the hot side 3.
  • a peripheral side borders on the hot side 3 and the wall side 5 7 of the heat shield stone 1.
  • the peripheral side 7 points a peripheral side surface 9.
  • the hot side 3 is in use the heat shield brick with a hot medium, for example a hot gas.
  • a circumferentially preloaded tension element 11 is provided on the circumference 7 of the heat shield brick 1 .
  • the tension element is biased such that compressive stress is normal to the peripheral side surface 9 is generated.
  • the tension element can have a certain Have elasticity.
  • With the tension element 11 is a clear one Increasing passive safety and thus durability the heat shield brick 1 when used in a combustion chamber, for example in the combustion chamber of a gas turbine.
  • FIG. 2 which is a top view of the one shown in FIG Shows heat shield stone on hot side 3, clarifies is the tension element 11 over the full circumference of the heat shield brick 1 attached to the circumferential side.
  • Compression forces S1, S2, S3, S4 are generated normal to the peripheral side surface 9.
  • the compressive forces S1 to S4 are inward into the Interior of the heat shield brick 1 directed into it.
  • the heat shield brick 1 is cuboid, here with designed a square base.
  • the circumference of the heat shield brick 1 is on each side surface of the cuboid heat shield brick 1 each resulting pressure force S1 to S4 generated.
  • the Heat shield stone 1 against the risk of cracking or Crack spread on the hot side 3, the wall side 5 or the circumferential side 7 largely protected.
  • Through the ring closure is a detachment, especially if the material is torn of material from the heat shield brick 1 prevented.
  • the durability of the heat shield brick 1 is thereby increased, so that a revision even with a material breakdown the heat shield stone 1 is not required, but the usual revision and maintenance cycles or longer ones Intervals can be achieved.
  • the tension element 11 is in The heat shield brick 1 is secured in the event of a crack or collapse, because removing fragments only takes a lot of work possible from the composite of the heat shield stone 1 is.
  • the compressive forces S1 induced by the tension element 11 to S4 hold the heat shield brick 1 together permanently.
  • the Tension element 11 is in the present example of a band-shaped Geometry.
  • the tension element 11 can in particular be braided or be woven.
  • FIG 3 shows a perspective view of a heat shield brick 1, with the heat shield stone 1 opposite 1 shows a first tension element 11A and a second tension element 11B.
  • the tension elements 11A, 11B are provided on the peripheral side 7 and in each case in Preloaded circumferential direction so that a compressive stress is normal to the peripheral side surface 9 is generated.
  • the first tension element 11A is at the end of the peripheral side facing the hot side 3 7 arranged.
  • the tension element 11B is on the Wall side 5 associated end of the peripheral side 7 is arranged.
  • FIGS 4 to 6 are different views of one Heat shield stone 1 shown.
  • 4 shows a first side view
  • 5 shows a second side view rotated by 90 °
  • 6 shows a plan view of the hot side 3 of the Heat shield stone 1 shows.
  • There are four tension elements 11A, 11B, 11C, 11D are provided, each under tension on the peripheral side 7 are attached.
  • Each of the tension members 11A to 11D extends over three of the four side surfaces of the cuboid Heat shield block.
  • the tension elements 11A, 11B are at the end of the peripheral side 7 facing the hot side 3 intended.
  • the tension elements 11C, 11D are on the wall side 5 facing end of the circumferential side 7 is arranged.
  • FIG 7 shows a perspective view of a heat shield brick 1 with modified compared to Figures 1 to 6 Design.
  • the heat shield brick 1 has on the peripheral side 7 a circumferential groove 13.
  • the circumferential groove 13 is over formed the entire circumference of the heat shield brick 1.
  • the tension element 11 in the circumferential groove 13 encloses the circumferential side surface 9 double. It is also possible for the tension element 11 the peripheral side surface 9 several times, in particular three or fourfold, encloses (see FIG 8 to 10).
  • the tension element 11 in the circumferential groove 13 is next to an increase the passive safety of the heat shield brick 1 the traction element 11 protected.
  • a direct application of the tension element 11 with a hot, corrosive or oxidative gas prevented by the engagement in the groove 13 become.
  • the heat shield stone 1 of FIG. 8 has a circumferential groove 13, while the heat shield brick 1 9 shows a circumferential groove 13A and a further circumferential groove 13B.
  • the tension elements 11A, 11B, 11C enclose the peripheral side surface 9 multiple.
  • the tension element 11 encloses in the circumferential groove 13 the peripheral side surface 9 triple (FIG 8), while the tension element 11A the circumferential side surface 9 fourfold and the tension element 11B encloses the peripheral side surface 9 in triplicate.
  • the heat shield brick 1 is here from a ceramic base material 19, in particular one Refractory ceramic.
  • the tension elements 11, 11A, 11B advantageously consist also made of a ceramic material 15, for example a ceramic fiber material which or is braided or woven in the form of a cord. This makes it easy to wrap the heat shield brick 1 with the tension elements 11, 11A, 11B with the application of a certain Preload possible in the circumferential direction.
  • the engagement the tension elements 11, 11A, 11B into the respective circumferential groove 13, 13A, 13B also secures the tension elements 11, 11A, 11B a detachment.
  • circumferential groove 13, 13A, 13B only partially enclose the peripheral side surface 9.
  • the number and arrangement of circumferential grooves 13, 13A, 13B with tension elements 11, 11A, 11B engaging therein depends on the respective geometry and the load case of the heat shield brick 1 can be laid out.
  • the heat shield stones 1, 1A have a respective circumferential groove 13, 13A in which a respective tension element 11, 11A engages. to additional securing of the tension elements 11, 11A is each of the Traction elements 11, 11A at least partially with the respective Heat shield brick 1.1A glued using an adhesive 45.
  • the Adhesive 45 provides a firm connection of the tension elements 11, 11A with the heat shield stones 1.1A in the respective circumferential groove 13.13A.
  • the arrangement of the heat shield brick 1 and the further heat shield brick 1A takes place here with the formation of a gap 35.
  • the gap 35 is due to the multiple arrangement of the tension elements 11, 11A closed in the circumferential grooves 13, 13A in such a way that a possible flow when the Hot side 3 with a hot medium, for example one Hot gas, from an area facing the hot side 3 the gap 35 to an area assigned to the wall side 5 is largely prevented.
  • the tension elements 11, 11A are in the arrangement with the heat shield brick 1 and another heat shield brick 1A against overflow protected from hot gas.
  • Heat shield stones 1.1A against relative movements along a horizontal shock axis 47 limited, in addition through the adjacently arranged tension elements 11, 11A of the respective heat shield stones 1, 1A in the area of the gap 35 shock absorption along the horizontal shock axis 47 is achieved is. This is of particular advantage when using the Heat shield stones 1.1A in the combustion chamber of a gas turbine, where vibrations due to combustion pulsations in the Combustion chamber can occur, and the risk of breakage consists.
  • FIG. 11 shows a support structure 21, for example a support wall, incorporated into the mounting grooves 33 are.
  • the fastening grooves 33 extend along a groove axis 43 in the support structure 21 respective fastening elements 23 is the heat shield brick 1 and the further heat shield brick 1A on the support structure 21 attached, the heat shield stones 1.1A along the groove axis 43 are arranged adjacent to each other.
  • the Top view of FIG 11 shows a view of the heat shield stones 1.1A on the hot side 3, which in operation with a hot Gas, for example a combustion gas, is applied.
  • Each of the heat shield stones 1.1A has a respective tension element 11.11A.
  • the tension elements 11, 11A engage in a respective one Circumferential groove 13.13A of the heat shield stones 1.1A, wherein generates a compressive stress normal to the peripheral side surface 9 becomes.
  • Heat shield stones 1.1A is, for example, in the combustion chamber a gas turbine used. This should be based on the following 12 are briefly discussed.
  • FIG 12 shows a highly schematic in a longitudinal section Gas turbine 27.
  • a turbine axis 37 are on top of each other arranged as follows: a compressor 39, a combustion chamber 25 and a turbine part 41.
  • the combustion chamber 25 is equipped with a Combustion chamber liner 29 lined on the inside.
  • the combustion chamber lining 29 comprises a combustion chamber wall 31 which at the same time has a support structure 21 (cf. also FIG. 11).
  • the combustor liner 29 further includes heat shield bricks 11, 11A, 11B which are fastened to the support structure 21.
  • the heat shield stones 11, 11A, 11B are in accordance with the above Designs designed. Are in operation of the gas turbine 27 the heat shield stones 11, 11A, 11B with a hot medium M, in particular a hot gas.
  • One tension element 11, 11A, 11B heat shield stones 1.1A, 1B are both for an exposure to the high temperatures of a hot Medium M, for example up to 1400 ° C in a gas turbine 29, as well as against a high mechanical energy input permanently resistant due to shocks and / or vibrations.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ceramic Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP00120788A 2000-09-22 2000-09-22 Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz Withdrawn EP1191285A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00120788A EP1191285A1 (fr) 2000-09-22 2000-09-22 Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz
US10/380,969 US6832484B2 (en) 2000-09-22 2001-09-18 Heat-shield brick, combustion chamber comprising an internal, combustion chamber lining and a gas turbine
PCT/EP2001/010790 WO2002025173A1 (fr) 2000-09-22 2001-09-18 Brique de protection thermique, chambre de combustion a garniture interieure et turbine a gaz
EP01969734A EP1319154A1 (fr) 2000-09-22 2001-09-18 Brique de protection thermique, chambre de combustion a garniture interieure et turbine a gaz
CA002423196A CA2423196C (fr) 2000-09-22 2001-09-18 Brique d'ecran thermique, chambre de combustion pourvue d'un revetement interne et turbine a gaz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00120788A EP1191285A1 (fr) 2000-09-22 2000-09-22 Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz

Publications (1)

Publication Number Publication Date
EP1191285A1 true EP1191285A1 (fr) 2002-03-27

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EP00120788A Withdrawn EP1191285A1 (fr) 2000-09-22 2000-09-22 Bouclier thérmique , chambre de combustion avec garnissage interne et turbine à gaz
EP01969734A Withdrawn EP1319154A1 (fr) 2000-09-22 2001-09-18 Brique de protection thermique, chambre de combustion a garniture interieure et turbine a gaz

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EP01969734A Withdrawn EP1319154A1 (fr) 2000-09-22 2001-09-18 Brique de protection thermique, chambre de combustion a garniture interieure et turbine a gaz

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US (1) US6832484B2 (fr)
EP (2) EP1191285A1 (fr)
CA (1) CA2423196C (fr)
WO (1) WO2002025173A1 (fr)

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WO2005071320A1 (fr) * 2004-01-27 2005-08-04 Siemens Aktiengesellschaft Ecran thermique
EP1591724A1 (fr) * 2004-04-30 2005-11-02 Siemens Aktiengesellschaft Elément d'étanchéité d'une fente pour un bouclier thermique
JP2007510121A (ja) * 2003-10-27 2007-04-19 シーメンス　アクチエンゲゼルシヤフト 熱シールド要素
CN104748551A (zh) * 2015-03-09 2015-07-01 江苏顺星耐火科技有限公司 镶嵌式硅莫砖

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EP1715271A1 (fr) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Bouclier thermique, chambre de combustion et turbine à gaz
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Publication number Priority date Publication date Assignee Title
EP1302723A1 (fr) 2001-10-15 2003-04-16 Siemens Aktiengesellschaft Revêtement pour parois intérieures de chambre de combustion
JP2007510121A (ja) * 2003-10-27 2007-04-19 シーメンス　アクチエンゲゼルシヤフト 熱シールド要素
US7805945B2 (en) 2003-10-27 2010-10-05 Siemens Aktiengesellschaft Thermal shield, especially for lining the wall of a combustion chamber
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WO2005071320A1 (fr) * 2004-01-27 2005-08-04 Siemens Aktiengesellschaft Ecran thermique
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EP1591724A1 (fr) * 2004-04-30 2005-11-02 Siemens Aktiengesellschaft Elément d'étanchéité d'une fente pour un bouclier thermique
CN104748551A (zh) * 2015-03-09 2015-07-01 江苏顺星耐火科技有限公司 镶嵌式硅莫砖
CN104748551B (zh) * 2015-03-09 2016-07-06 江苏顺星耐火科技有限公司 镶嵌式硅莫砖

Also Published As

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US20030177770A1 (en) 2003-09-25
WO2002025173A1 (fr) 2002-03-28
EP1319154A1 (fr) 2003-06-18
CA2423196A1 (fr) 2003-03-20
CA2423196C (fr) 2009-11-03
US6832484B2 (en) 2004-12-21

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