EP0837286A2 - Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt - Google Patents
Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt Download PDFInfo
- Publication number
- EP0837286A2 EP0837286A2 EP97114340A EP97114340A EP0837286A2 EP 0837286 A2 EP0837286 A2 EP 0837286A2 EP 97114340 A EP97114340 A EP 97114340A EP 97114340 A EP97114340 A EP 97114340A EP 0837286 A2 EP0837286 A2 EP 0837286A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- head section
- air inlet
- combustion chamber
- openings
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
-
- 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
Definitions
- the invention relates to a combustion chamber of a gas turbine with an annular Head section, within which a front plate for receiving Burners are provided, which have annularly arranged air inlet openings be supplied with a primary air stream in the head section, and the front plate still being fixed by screw connections in the combustion chamber combustion chamber provided heat shields.
- a combustion chamber of a gas turbine with an annular Head section, within which a front plate for receiving Burners are provided, which have annularly arranged air inlet openings be supplied with a primary air stream in the head section, and the front plate still being fixed by screw connections in the combustion chamber combustion chamber provided heat shields.
- the center of this Ring usually coincides with the central axis or central longitudinal axis the ring combustion chamber together.
- the solution to this problem is characterized in that mounting openings for the screw connections are provided in the head section, the mounting openings not being outside the ring described by the air inlet openings.
- the stagnation points which form on the outside of the head section with respect to the flow against the assembly openings can describe a ring which is not outside the ring described by the stagnation points of the air inlet openings.
- FIG. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section through a combustion chamber head section with the heat shield fitted
- FIG. 2 shows the view X.
- Fig. 1 shows a partial longitudinal section
- Reference number 1 denotes the head section of an otherwise not shown usual annular, a central axis or central longitudinal axis Z having gas turbine combustor, within which how Usually a front panel 2 for receiving burners, not shown is provided.
- the front panel 2 has a plurality of rings Passage openings 3, within each of which the expert known burner collar 4 is provided.
- Flames are annular on the end face of this annular combustion chamber 5 arranged heat shields 6, which are carried by the front panel 2 will.
- each heat shield 6 has, as usual, several (preferably four) threaded bolts 7, each of the front panel 2 in a push-through opening 8 penetrate so that on the back, d. H. in room 13 between the front panel 2 and the head section 1 on each threaded bolt 7 a bolt nut 9 can be screwed on.
- FIG. 2 shows the air inlet openings 10 arranged in a ring for the burners, these air inlet openings 10 being coaxial with the through openings 3 are arranged, as Fig. 3a shows.
- Fig. 2 are also the Center lines formed by the threaded bolt 7 and the bolt nut 9 Heat shield screw connections 11 represented by crosses.
- Um now to be able to assemble these screw connections 11 in a simple manner, d. H. around the bolt nuts 9 simply put on the threaded bolts 7 and to be able to tighten are suitably placed, d. H. especially coaxial to the screw connections 11, i.e. Mounting openings lying coaxially to their center lines 12 provided in the head section 1.
- Their training goes in particular also from Fig. 3b.
- each screw connection 11 can now be opened via these assembly openings 12 assembled in a simple manner, i.e. each bolt nut 9 simply on the respective Threaded bolt 7 can be applied, however, could be through these mounting holes 12 part of the primary air flow for supplying the burners, which via the air inlet openings 10 in the space 13 between the Head section 1 and the front panel 2 came out again.
- the mounting openings 12 are in accordance with the following Description arranged:
- the combustion chamber head section 1 is flowed towards in the direction of arrow X by an air flow which is conveyed by a compressor upstream of the combustion chamber.
- S the stagnation points denoted by S (see FIG. 3a)
- the flow velocity of the air flow brought up has the value 0 ", while the static pressure has its maximum value.
- the pressure and flow conditions which result from this in the direction of the arrow X (see FIG 1) brought in air flow ensures that no partial air flow from the room 13 can then pass through the mounting openings 12 against the direction of the arrow X to the outside. Rather, an additional air stream is guided into the space 13 via the mounting openings 12, which is basically desirable.
- the definition of the rings 12 'and 10' can also be simplified, ie not via the stagnation points S, although this definition reproduces the physical conditions particularly well via the stagnation points S and in particular can also explain the desired effect based on the physical conditions.
- the design according to the invention can also be described in a simplified manner in that the air inlet openings 10 themselves form a ring 10 ′′, inside or not outside of which the mounting openings 12 should lie. In other words, this means that all of the air inlet openings 10 describe a ring 10 ′′, on the ring surface of which the air inlet openings 10 are precisely adapted in the radial direction.
- the outer radius R a of this ring 10 ′′ thus corresponds to the maximum extension R x of the air inlet openings 10 in the radial direction (with respect to the central axis Z), while the inner radius R i of the ring 10 ′′ corresponds to the minimum extension R y of the air inlet openings 10 in the radial direction corresponds.
- the head section 1 has in the area of the air inlet openings 10 and in the area of the mounting openings 12 from the outside flow dynamically protruding into the inside (i.e. into space 13) trained opening edges 14, since this causes the flow conditions, d. H . especially the inflow of air flow is improved in the direction of arrow X in room 13.
- this can as well as a variety of other details, especially of a constructive nature deviate from the embodiment shown, without to leave the content of the claims.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
- Air Supply (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Die Lösung dieser Aufgabe ist dadurch gekennzeichnet, daß im Kopfabschnitt Montageöffnungen für die Verschraubungen vorgesehen sind, wobei die Montageöffnungen nicht außerhalb des von den Lufteintrittsöffnungen beschriebenen Ringes liegen. Insbesondere können die sich bezüglich der Anströmung der Montageöffnungen an der Außenseite des Kopfabschnittes bildenden Staupunkte einen Ring beschreiben, der nicht außerhalb des von den Staupunkten der Lufteintrittsöffnungen beschriebenen Ringes liegt.
In gleicher Weise bilden die Staupunkte S der Montageöffnungen 12, wenn alle innenliegenden Staupunkte und alle außenliegenden Staupunkte über jeweils einen Kreis, dessen Zentrum die Zentralachse Z ist, miteinander verbunden werden, einen mit der Bezugsziffer 12' bezeichneten Ring.
Wird nun durch geeignete Anordnung und Ausbildung der Montageöffnungen 12 im Hinblick auf die Lufteintrittsöffnungen 10 sichergestellt, daß der Ring 12' nicht außerhalb des Ringes 10' liegt, so ist durch die sich damit einstellenden Druck- und Strömungsverhältnisse der gemäß Pfeilrichtung X (vgl. Fig. 1) herangeführten Luftströmung sichergestellt, daß kein Teilluftstrom aus dem Raum 13 über die Montageöffnungen 12 dann gegen Pfeilrichtung X nach außen gelangen kann. Vielmehr wird über die Montageöffnungen 12 auf diese Weise ein zusätzlicher Luftstrom in den Raum 13 geführt, was grundsätzlich erwünscht ist.
In anderen Worten bedeutet dies, daß sämtliche Lufteintrittsöffnungen 10 einen Ring 10'' beschreiben, auf dessen Ringfläche in radialer Richtung exakt angepaßt die Lufteintrittsöffnungen 10 liegen. Der Außenradius Ra dieses Ringes 10'' entspricht damit der in radialer Richtung (bezüglich der Zentralachse Z) maximalen Erstreckung Rx der Lufteintrittsöffnungen 10, während der Innenradius Ri des Ringes 10'' der in radialer Richtung minimaler Erstreckung Ry der Lufteintrittsöffnungen 10 entspricht.
Claims (3)
- Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt (1), innerhalb dessen eine Frontplatte (2) zur Aufnahme von Brennern vorgesehen ist, welche über ringförmig angeordnete Lufteintrittsöffnungen (10) im Kopfabschnitt (1) mit einem Primärluftstrom versorgt werden, und wobei die Frontplatte (2) weiterhin über Verschraubungen (11) fixierte, im Brennkammer-Brennraum (5) vorgesehene Hitzeschilder (6) trägt,dadurch gekennzeichnet, daß im Kopfabschnitt (1) Montageöffnungen (12) für die Verschraubungen (11) vorgesehen sind, wobei die Montageöffnungen (12) nicht außerhalb des von den Lufteintrittsöffnungen (10) gebildeten Ringes (10'') liegen.
- Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt, (1) innerhalb dessen eine Frontplatte (2) zur Aufnahme von Brennern vorgesehen ist, welche über ringförmig angeordnete Lufteintrittsöffnungen (10) im Kopfabschnitt (1) mit einem Primärluftstrom versorgt werden, wobei die sich bezüglich der Anströmung der Lufteintrittsöffnungen (10) an der Außenseite des Kopfabschnittes (1) bildenden Staupunkte (S) einen Ring (10') beschreiben, innerhalb dessen die Lufteintrittsöffnungen (10) liegen,und wobei die Frontplatte (2) weiterhin über Verschraubungen (11) fixierte, im Brennkammer-Brennraum (5) vorgesehene Hitzeschilder (6) trägt,dadurch gekennzeichnet, daß im Kopfabschnitt (1) Montageöffnungen (12) für die Verschraubungen (11) vorgesehen sind, wobei die sich bezüglich der Anströmung der Montageöffnungen (12) an der Außenseite des Kopfabschnittes (1) bildenden Staupunkte (S) einen Ring (12') beschreiben, der nicht außerhalb des von den Staupunkten (S) der Lufteintrittsöffnungen (10) gebildeten Ringes (10') liegt.
- Brennkammer einer Gasturbine nach Anspruch 1 oder 2,dadurch gekennzeichnet, daß der Kopfabschnitt (1) im Bereich der Lufteintrittsöffnungen (10) und/oder der Montageöffnungen (12) von der Außenseite in die Innenseite hineinragende, strömungsdynamisch ausgebildete Öffnungsränder (14) aufweist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19643028 | 1996-10-18 | ||
| DE19643028A DE19643028A1 (de) | 1996-10-18 | 1996-10-18 | Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0837286A2 true EP0837286A2 (de) | 1998-04-22 |
| EP0837286A3 EP0837286A3 (de) | 2000-07-05 |
| EP0837286B1 EP0837286B1 (de) | 2002-10-02 |
Family
ID=7809106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97114340A Expired - Lifetime EP0837286B1 (de) | 1996-10-18 | 1997-08-20 | Brennkammer einer Gasturbine mit einem ringförmigen Kopfabschnitt |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5934066A (de) |
| EP (1) | EP0837286B1 (de) |
| CA (1) | CA2218520C (de) |
| DE (2) | DE19643028A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2966352A1 (de) * | 2014-07-09 | 2016-01-13 | Rolls-Royce Deutschland Ltd & Co KG | Brennkammer einer gasturbine mit verschraubtem brennkammerkopf |
| FR3026827A1 (fr) * | 2014-10-01 | 2016-04-08 | Snecma | Chambre de combustion de turbomachine |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6779268B1 (en) * | 2003-05-13 | 2004-08-24 | General Electric Company | Outer and inner cowl-wire wrap to one piece cowl conversion |
| US7681398B2 (en) | 2006-11-17 | 2010-03-23 | Pratt & Whitney Canada Corp. | Combustor liner and heat shield assembly |
| US7748221B2 (en) | 2006-11-17 | 2010-07-06 | Pratt & Whitney Canada Corp. | Combustor heat shield with variable cooling |
| US7721548B2 (en) | 2006-11-17 | 2010-05-25 | Pratt & Whitney Canada Corp. | Combustor liner and heat shield assembly |
| GB0705458D0 (en) * | 2007-03-22 | 2007-05-02 | Rolls Royce Plc | A Location ring arrangement |
| US7845174B2 (en) * | 2007-04-19 | 2010-12-07 | Pratt & Whitney Canada Corp. | Combustor liner with improved heat shield retention |
| US9291102B2 (en) | 2011-09-07 | 2016-03-22 | Siemens Energy, Inc. | Interface ring for gas turbine fuel nozzle assemblies |
| DE102013007443A1 (de) * | 2013-04-30 | 2014-10-30 | Rolls-Royce Deutschland Ltd & Co Kg | Brennerdichtung für Gasturbinen-Brennkammerkopf und Hitzeschild |
| FR3011317B1 (fr) * | 2013-10-01 | 2018-02-23 | Safran Aircraft Engines | Chambre de combustion pour turbomachine a admission d'air homogene au travers de systemes d'injection |
| DE102015213629A1 (de) | 2015-07-20 | 2017-01-26 | Rolls-Royce Deutschland Ltd & Co Kg | Abdeckteil und Brennkammerbaugruppe für eine Gasturbine |
| US10767863B2 (en) * | 2015-07-22 | 2020-09-08 | Rolls-Royce North American Technologies, Inc. | Combustor tile with monolithic inserts |
| DE102015224990A1 (de) | 2015-12-11 | 2017-06-14 | Rolls-Royce Deutschland Ltd & Co Kg | Verfahren zur Montage einer Brennkammer eines Gasturbinentriebwerks |
| DE102015224988A1 (de) * | 2015-12-11 | 2017-06-14 | Rolls-Royce Deutschland Ltd & Co Kg | Verfahren zur Montage einer Brennkammer eines Gasturbinentriebwerks |
| DE102017201349A1 (de) | 2017-01-27 | 2018-08-02 | Rolls-Royce Deutschland Ltd & Co Kg | Brennkammeranordnung einer Gasturbine |
| DE102017207392A1 (de) * | 2017-05-03 | 2018-11-08 | Siemens Aktiengesellschaft | Silobrennkammer und Verfahren zum Umrüsten einer solchen |
| GB201715366D0 (en) | 2017-09-22 | 2017-11-08 | Rolls Royce Plc | A combustion chamber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5419115A (en) | 1994-04-29 | 1995-05-30 | United Technologies Corporation | Bulkhead and fuel nozzle guide assembly for an annular combustion chamber |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870818A (en) * | 1986-04-18 | 1989-10-03 | United Technologies Corporation | Fuel nozzle guide structure and retainer for a gas turbine engine |
| US4934145A (en) * | 1988-10-12 | 1990-06-19 | United Technologies Corporation | Combustor bulkhead heat shield assembly |
| US5181377A (en) * | 1991-04-16 | 1993-01-26 | General Electric Company | Damped combustor cowl structure |
| US5289677A (en) * | 1992-12-16 | 1994-03-01 | United Technologies Corporation | Combined support and seal ring for a combustor |
| US5323601A (en) * | 1992-12-21 | 1994-06-28 | United Technologies Corporation | Individually removable combustor liner panel for a gas turbine engine |
| DE4427222A1 (de) * | 1994-08-01 | 1996-02-08 | Bmw Rolls Royce Gmbh | Hitzeschild für eine Gasturbinen-Brennkammer |
| DE19508111A1 (de) * | 1995-03-08 | 1996-09-12 | Bmw Rolls Royce Gmbh | Hitzeschild-Anordnung für eine Gasturbinen-Brennkammer |
| FR2751731B1 (fr) * | 1996-07-25 | 1998-09-04 | Snecma | Ensemble bol-deflecteur pour chambre de combustion de turbomachine |
-
1996
- 1996-10-18 DE DE19643028A patent/DE19643028A1/de not_active Withdrawn
-
1997
- 1997-08-20 DE DE59708367T patent/DE59708367D1/de not_active Expired - Lifetime
- 1997-08-20 EP EP97114340A patent/EP0837286B1/de not_active Expired - Lifetime
- 1997-10-09 US US08/948,056 patent/US5934066A/en not_active Expired - Fee Related
- 1997-10-16 CA CA002218520A patent/CA2218520C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5419115A (en) | 1994-04-29 | 1995-05-30 | United Technologies Corporation | Bulkhead and fuel nozzle guide assembly for an annular combustion chamber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2966352A1 (de) * | 2014-07-09 | 2016-01-13 | Rolls-Royce Deutschland Ltd & Co KG | Brennkammer einer gasturbine mit verschraubtem brennkammerkopf |
| US10012390B2 (en) | 2014-07-09 | 2018-07-03 | Rolls-Royce Deutschland Ltd & Co Kg | Combustion chamber of a gas turbine with bolted combustion chamber head |
| FR3026827A1 (fr) * | 2014-10-01 | 2016-04-08 | Snecma | Chambre de combustion de turbomachine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0837286A3 (de) | 2000-07-05 |
| DE19643028A1 (de) | 1998-04-23 |
| US5934066A (en) | 1999-08-10 |
| DE59708367D1 (de) | 2002-11-07 |
| CA2218520A1 (en) | 1998-04-18 |
| CA2218520C (en) | 2007-03-13 |
| EP0837286B1 (de) | 2002-10-02 |
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