Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
  • F01D9/00—Stators
  • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
  • F01D9/023—Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines; their cooling or sealings
• • 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
  • F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
  • F23R3/60—Support structures; Attaching or mounting means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
  • F05B2260/00—Function
  • F05B2260/30—Retaining components in desired mutual position
  • F05B2260/301—Retaining bolts or nuts
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2230/00—Manufacture
  • F05D2230/60—Assembly methods
  • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2230/00—Manufacture
  • F05D2230/60—Assembly methods
  • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
  • F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2250/00—Geometry
  • F05D2250/20—Three-dimensional
  • F05D2250/24—Three-dimensional ellipsoidal
  • F05D2250/241—Three-dimensional ellipsoidal spherical
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2250/00—Geometry
  • F05D2250/40—Movement of components
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2250/00—Geometry
  • F05D2250/40—Movement of components
  • F05D2250/42—Movement of components with two degrees of freedom

Definitions

• the invention relates to a method for assembling a mixing housing of a gas turbine and a gas turbine with a mixing housing.
• the mixing housing When mounting a mixing housing of a gas turbine, the mixing housing is first mounted in the combustion chamber to the flame tube.
• the mixing housing must be precisely aligned so that the lower mixing housing connection fits into the connection of the inner housing of the fuselage turbine.
• the mass, shapes and positions of the mixing housing and the inner casing of the fuselage turbine of a gas turbine have such large variances due to production that the mixing housing can not readily be positioned to the inner casing of the fuselage turbine.
• the position of the inner housing is transferred to a template.
• the mixing housing can be made with the cooling air ring and aligned at the inner housing position in the area of the pressure jacket flange.
• FIG. 2 shows a template for positioning a mixing housing according to the prior art.
• the template 11 is fastened by six screws 21 on the pressure jacket flange 10 surrounding the mixing housing.
• the cooling air ring 6 is aligned with the template 11.
• FIG. 3 shows a detailed view of two alignment points between the template 11 and the cooling air ring 6.
• the grooves 23 of the template 11 receive the pins 22 of the cooling air ring 6 and thus fix the position of the cooling air ring 6.
• the cooling air ring can be welded to the mixing housing.
• a second object is to provide an advantageous mixing housing arrangement and a gas turbine with an advantageous mixing housing arrangement available.
• the mixing housing is adjusted relative to the flame tube and the inner housing.
• the flame tube and the mixing housing are to be regarded as parts of the combustion chamber.
• the cooling air ring is welded to the mixing housing and then aligned with the inner housing position.
• a combustion chamber according to the invention has a mixing housing with an outer housing surrounding the mixing housing, wherein the mixing housing is adjustable relative to the outer housing.
• the mixing housing is provided with an adjusting device for adjusting the mixing housing relative to the outer housing.
• the combustion chamber may have an adjusting device which comprises a bolt, a pressure plate and a wedge disk.
• the contact surfaces between the pin and the wedge disc and between the pin and the pressure plate can be spherical so that the flange area of the pin is moved between the counterparts on a spherical surface can.
• the mixing chamber moves with it, but keeps its concentric position to the flame tube.
• the spherical surface between the pin and the pressure plate enables quick and cost-effective retrofitting of existing machines. Due to the optimized dimensions of the bolt, even in the most unfavorable case, no critical shifts of the mixing housing during operation occur.
• the adjustment is thus based on the variable position of the bearing bolts. This eliminates the individual transmission of the réellegehauseposition a gas turbine using a template, and it can be used the statistical mean of the réellegehauseposition.
• the bolts can be installed eccentrically so that a height adjustment of the mixing housing is possible.
• the bolts on the head can each have an eccentric bore with an eccentric pin inserted therein.
• the bolts can also be slidably mounted parallel vertically and horizontally to the outer housing. As a result, a gap adaptation of Mischgehauses to the flame tube is possible.
• the mixing housing can be tilted about the pin axis, whereby further flexibility of the Mischgehauses is achieved.
• the bolt can be located in a flange tube, which is arranged in the outer housing.
• the flange tube can in particular be widened to a slot. This allows a horizontal adjustment of Mischgehauses. The vertical adjustment is then also possible by tilting the Mischgehauses around the pin axis and the use of the eccentric.
• the adjusting device can also be designed as a guide and rail system with the aid of which the mixing housing can be positioned more accurately. In this case, an arrangement of adjustable bolts is not required.
• a gas turbine according to the invention comprises a combustion chamber according to the invention.
• the combustion chamber may comprise a cooling air ring fixed to the mixing housing and facing the inner housing.
• the gap between the inner housing and the cooling air ring is then advantageously 3 to 3.5 mm.
• Fig. 1 is a view of an arranged between a combustion chamber and an inner housing mixing housing assembly, consisting essentially of pressure jacket and mixing housing.
• Fig. 2 is a view of a template in the installed state.
• Fig. 3 shows a detail enlargement in the region of the template.
• Fig. 5 is a view of the bolt in the assembly.
• Fig. 6 is a single view of the bolt.
• Fig. 7 is a single view of the wedge disk.
• Fig. 8 is a single view of the pressure plate. Detailed description of the exemplary embodiment
• a combustion chamber 1 of a gas turbine with an outer housing, which is called a pressure jacket 18, sometimes called a combustion chamber jacket, and with a flame housing 2 arranged inside the outer housing or pressure jacket 18.
• a pressure jacket 18 Within the pressure jacket 18 are also a Mischgehause 4 and a mixing housing 4 fixed Kuhlluftring. 6
• the flame tube 2 extends vertically and is located in the upper region of the arrangement shown. It absorbs the flames, which are located at the top of the pressure jacket
• Burner 3 are generated. At the lower end of the flame tube 2, the conical and curved Mischgehause 4 connects, which leads the combustion gases to a réellegehause 8 a hull turbine (not shown). In the area of a pressure flange 10, the cooling air ring 6 connects to the
• Mischgehause 4 which cools the transition between Mischgehause 4 and psychologygehause 8.
• the mixing housing 4 is fastened by two bolts 12 on the pressure jacket 18.
• the bolts 12 are located in flange tubes 20 with Flanschrohrlangsachsen 19, which are arranged in the pressure jacket 18, namely in the vicinity of a support 11 in the region of the lower part of Mischgehauses 4.
• Flanschrohrlangsachsen 19 see Fig. 5
• a êtgehause- slow axis 9 see Fig. 1).
• the flange tubes can be arranged with their longitudinal axes 19 perpendicular to the longitudinal axis of the flame tube 7 and the mecanicgehause- slow axis 9 spanned surface. Within a horizontal elongated hole, the bolts and thus the mixing housing can then be displaced well in the direction of the extended inner housing longitudinal axis 9.
• the flanged pipes can but equally well positioned at any other location on the outer surface of the pressure jacket 18, but then not the optimal displaceability along the inner housing longitudinal axis 9 is achieved.
• the cooling air ring 6 is at one End welded to the mixing housing 4.
• the other end of the cooling air ring 6 is inserted into the connection cross section of the inner housing 8.
• FIG. 5 the adjustable arrangement between the mixing housing 4, pressure jacket 18, and one of the two bolts 12 (see Fig. 1) is shown.
• the bolt 12 is received at the unscrewed end in a mixing housing sleeve 5, while the flange 17 is located within the flange tube 20 of the pressure jacket 18.
• the mixing housing sleeve 5 is located on the outside of the mixing housing 4.
• the bolt 12 can be fixed to the flange 17 by a plurality of circumferentially distributed screws 16 on the pressure jacket 18.
• Bolzens 12 is a pressure plate 13 on the Bolzenend Chemistry. Both the pressure plate 13 and the bolt 12 have spherical contact surfaces 15. The concave side of the pressure plate 13 points to the mixing housing. 4
• the wedge plate 14 which is annular and surrounds the pin 12.
• the wedge disk 14 has a spherical surface 15 on the surface adjoining the bolt.
• the bolt also has a spherical surface 15 on the flange surface, which rests on the wedge disk in the installed state.
• the concave sides of the two resting on each other spherical surfaces 15 show for Mixing housing 4. This results in the dissolved state of the bolt 12 a rotatable along the spherical surfaces bearing of the bolt 12 between Andschreibblech 13 and wedge disk 14th
• the two spherical surfaces 15 between Andschreibblech 13, bolts 12 and wedge disk 14 allow the mixing housing 4 via the bolt 12 in its position relative to the inner housing 8 (see FIG. 4) of the fuselage turbine is adjustable.
• the mixing housing 4 can be rotated by the bolts 12 with the bolt longitudinal axis 24 by the angle a relative to the Flanschrohrlteilsachse 19.
• the mixing housing is rotated by ⁇ «0.15 °. After adjusting the mixing housing tighten the screws of the bearing bolts. The bolts and thus the mixing housing are then held in position by frictional force.
• a bore 26 for screwing a mounting rod In the flange 17 of the bolt 12 is also a bore 26 for screwing a mounting rod.
• FIG. 6 shows an individual view of the bolt 12.
• the bolt 12 has spherical surfaces 15 on both sides of its flange (see FIG. 5).
• the bolt 12 with the bolt longitudinal axis 24 within a bore with a diameter of 26 mm in the flange tube horizontally relative to the Flanschrohrlhacksachse 19 slidably.
• the borehole can also be expanded to a slot.
• the diameter A of the bolt flange holes (about 25 mm) is larger than the diameter B of the flange holes of the wedge disk 14 (see Fig. 7) and of the pressure plate 13 (see Fig. 8), so that the fastening screws 16 of the bolt 12 have sufficient clearance during the movement of the bolt for adjusting the bolt position.
• FIG. 7 shows an individual view of a wedge disk 14 as already shown in the assembly in FIG. 5.
• the wedge disk 14 has a spherical surface 15 only on the side which rests on the flange of the bolt 12 during assembly to allow adjustment of the bolt 12.
• FIG. 8 shows an individual view of a pressure plate 13, which is already shown in the assembly in FIG. 5.
• the pressure plate 13 also has only on the side which rests on the flange of the bolt 12 in the assembly, a spherical surface 15 in order to allow adjustment of the bolt 12.
• the invention also describes the following methods and devices:
• a method for improved assembly of various components of a combustion chamber of a turbine at least comprising the components housing, ring and inner housing, characterized in that an adjustment of the housing in the combustion chamber is carried out during assembly.
• a method for improved assembly of various components of a combustion chamber comprising a housing, characterized in that at the Monatage the ring is aligned at the réellegepatuseposition.
• a device for improved assembly of various components of a combustion chamber of a turbine at least comprising the components housing, ring and inner housing, characterized in that the housing is arranged adjustable in the combustion chamber during assembly. 4.
• a device characterized in that the components consist of at least inner housing and cooling air ring.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Turbine Rotor Nozzle Sealing (AREA)
• Gas Burners (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

Family

ID=38008336

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Citations (7)

Family Cites Families (3)

• 2007
  • 2007-01-09 CN CN2007800087709A patent/CN101548135B/zh active Active
  • 2007-01-09 RU RU2008140723/06A patent/RU2444681C2/ru active
  • 2007-01-09 WO PCT/EP2007/050194 patent/WO2007104587A2/de active Application Filing
  • 2007-01-09 EP EP07700252.5A patent/EP1994260B1/de active Active

Patent Citations (7)

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