EP0858551B1 - Transition element between components of the flue gas duct of a gas turbine - Google Patents
Transition element between components of the flue gas duct of a gas turbine Download PDFInfo
- Publication number
- EP0858551B1 EP0858551B1 EP96945509A EP96945509A EP0858551B1 EP 0858551 B1 EP0858551 B1 EP 0858551B1 EP 96945509 A EP96945509 A EP 96945509A EP 96945509 A EP96945509 A EP 96945509A EP 0858551 B1 EP0858551 B1 EP 0858551B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- flue gas
- transition
- gas duct
- gas turbine
- 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.)
- Expired - Lifetime
Links
Images
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
Definitions
- the invention relates to a transition element between Components of a flue gas duct, that of a gas turbine Power plant is downstream.
- Gas turbines are used in many areas, particularly in Power plants, for driving generators or working machines used.
- the energy content becomes one Fuel for generating the rotational movement of the turbine shaft used.
- the result of burning the fuel Work equipment or hot gas is used in the Gas turbine relaxes and then one as exhaust gas or flue gas fed to the gas turbine connected flue gas duct.
- the flue gas duct of the gas turbine usually comprises several interconnected components or duct sections. Depending on The design and type of use of the gas turbine are as components a diffuser, a compensator and / or other elements, such as e.g. a main chimney, a bypass chimney.
- Each component is common in the operation of the gas turbine heated by the exhaust gas or flue gas flowing through them.
- the flue gas cools down along the flue gas direction through heat exchange with the respective components from.
- Structural parts heated to different temperature levels to each other leading to mechanical stresses between leads the components.
- FR-A-2 469 563 is a downstream of a gas turbine Exhaust gas collector known, which is a thermal insulation element for insulation of internals against the flue gas heat.
- the invention has for its object a transition element between the components of a flue gas duct of the above Specify the type that has a particularly long lifespan the components and thus the entire gas turbine system.
- the transition element has a first heat insulation element, the Thickness for setting a constant temperature profile in along a transition area linearly from the location variable depends on the flue gas duct.
- the invention is based on the consideration that for a long life of the components of the flue gas duct of the gas turbine abrupt jumps in temperature between neighboring components should be avoided. This is due to an im Area of transition between two components of the Flue gas channel slowly changing temperature profile achievable. Setting a suitable temperature profile can accordingly by a correspondingly modified heat insulation element be effected by its thickness as a function of Location variables along the flue gas duct varied.
- the temperature profile For a particularly effective reduction of transient temperature loads of the components is one set temperature profile steadily. This could be the heat insulation be stepped. To set one particularly suitable for avoiding material tension However, the temperature profile should be a non-stepped Thermal insulation can be used. The thickness of the The thermal insulation element depends linearly on the location coordinates. Such a transition element is also special easy to manufacture.
- the length of the Transition range preferably greater than the temperature decay length of the wall material of the components.
- the temperature decay length is the physical parameter for description a local temperature change within a Materials.
- a transient temperature load on the wall material Components is also reduced by expediently the scope of at least one of the components in at least one Part of the flue gas duct linear with the location variable varies. With a round cross section of the flue gas duct this section is thus conical. At a square cross section of the flue gas duct corresponds to the In contrast, part of the lateral surface of a truncated pyramid.
- the transition element in the Transition area expediently a first heat insulation element as internal insulation and a second thermal insulation element as external insulation, whose thicknesses as a function of the location variables vary in opposite directions.
- the advantages achieved with the invention are in particular in that by the varying thickness of the heat insulation element a temperature profile during operation of the gas turbine sets such that excessive material loads the components of the flue gas duct are avoided.
- the sub-area in which the scope at least one of the components varies linearly with the location variable, are different from different thermal expansions Component resulting radial constraints can be compensated.
- Figure 1 shows - as part of a power plant - one Gas turbine system 1 with one of the gas turbine 2 via one Flue gas duct 4 downstream waste heat boiler 6 for steam generation, e.g. for a steam turbine (not shown).
- the Flue gas duct 4 comprises one as components or duct pieces Metal compensator 8, a diffuser 10, a bypass chimney 12 and a duct piece 14 opening into the waste heat boiler 6.
- the speed of the axially emerging from the gas turbine 2 hot smoke gas RG is in the with the metal compensator 8 connected diffuser 10 reduced, so that the static Flue gas pressure rises. Because of the high outlet temperature of the hot smoke gas RG of about 500 to 600 ° C arise Thermal expansion compensated by the metal compensator 8 should be. At junctions between each two components 8 and 10, and 12 and 14 of the flue gas duct 4 also occur local and / or transient Temperature loads due to continuous cooling of the flue gas RG along one indicated by the arrow 24 Location coordinate x in the direction of the flue gas duct 4 on.
- the flue gas duct 4 points at the connection points between two of the components 8, 10, 12, 14 each a transition element 30 and 30 'on, as in the Figures 2 and 3 are shown in detail.
- the transition elements 30, 30 ' serve to connect two components 8 and 10 or 12 and 14 of the flue gas duct 4.
- the transition element 30, 30 ' can also be part of one of the components 8, 10 and 12, 14, respectively.
- Transition elements 30, 30 ' are also at other connection points provided for two channel pieces of the smoke channel 4.
- the transition element 30 shown in Figure 2 comprises Setting a temperature profile along the location coordinates x a first heat insulation element during operation of the gas turbine 2 34, whose thickness d as a function of the location variable x decreases linearly in a transition region 36.
- a steady temperature profile is a "Soft" temperature transition between components 8 and 10, and thereby a reduced voltage load of the Components 8 and 10 guaranteed.
- the Transition element 30 To the transition from an internally insulated component 8 to To enable an externally insulated component 10, the Transition element 30 a second heat insulation element 40 on, whose thickness d 'runs counter to the position variable x to the thickness d of the first heat insulation element 34 varies.
- the heat insulation element 34 'of the transition element 30' indicates the setting of an intended temperature profile one that varies as a function of the location coordinates x Thickness d.
- the thickness d of the heat insulation element varies 34 'as a function of the location coordinates x also linear in a second region 42. Eddies of the the flue gas channel 4 flowing through flue gas duct RG and therefrom resulting flow losses are thus kept low.
- the circumference of the outer wall 38 'of the transition element 30' opens in a flange 44 with a particularly small Flange height h. Such a low flange height h the flange 44 less sensitive to thermal expansion and thus has a particularly long lifespan.
- the transition element 30 ′ also has one on the flange 44 connected tissue compensator 46, which with regard to temperature-induced tension is particularly flexible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Lift Valve (AREA)
- Incineration Of Waste (AREA)
Description
Die Erfindung bezieht sich auf ein Übergangselement zwischen Komponenten eines Rauchgaskanals, der einer Gasturbine einer Kraftwerksanlage nachgeschaltet ist.The invention relates to a transition element between Components of a flue gas duct, that of a gas turbine Power plant is downstream.
Gasturbinen werden in vielen Bereichen, insbesondere in Kraftwerksanlagen, zum Antrieb von Generatoren oder von Arbeitsmaschinen eingesetzt. Dabei wird der Energieinhalt eines Brennstoffs zur Erzeugung der Rotationsbewegung der Turbinenwelle benutzt. Das bei der Verbrennung des Brennstoffs entstehende Arbeitsmittel oder heiße Gas wird dazu in der Gasturbine entspannt und sodann als Abgas oder Rauchgas einem an die Gasturbine angeschlossenen Rauchgaskanal zugeführt.Gas turbines are used in many areas, particularly in Power plants, for driving generators or working machines used. The energy content becomes one Fuel for generating the rotational movement of the turbine shaft used. The result of burning the fuel Work equipment or hot gas is used in the Gas turbine relaxes and then one as exhaust gas or flue gas fed to the gas turbine connected flue gas duct.
Der Rauchgaskanal der Gasturbine umfaßt üblicherweise mehrere miteinander verbundene Komponenten oder Kanalstücke. Je nach Auslegung und Einsatzart der Gasturbine sind als Komponenten ein Diffusor, ein Kompensator und/oder weitere Elemente, wie z.B. ein Hauptkamin, ein Bypasskamin, vorgesehen.The flue gas duct of the gas turbine usually comprises several interconnected components or duct sections. Depending on The design and type of use of the gas turbine are as components a diffuser, a compensator and / or other elements, such as e.g. a main chimney, a bypass chimney.
Jede Komponente wird beim Betrieb der Gasturbine üblicherweise durch das sie durchströmende Abgas oder Rauchgas aufgeheizt. Dabei kühlt sich das Rauchgas entlang der Rauchgasrichtung durch Wärmeaustausch mit den jeweiligen Komponenten ab. Je nach ihrer Position im Rauchgaskanal wird somit jede Komponente auf eine unterschiedliche Temperatur aufgeheizt. Im Bereich des Übergangs zwischen zwei Komponenten liegen somit auf unterschiedliche Temperaturniveaus aufgeheizte Strukturteile aneinander, was zu mechanischen Spannungen zwischen den Komponenten führt. Insbesondere bei Lastwechseln der Gasturbine, wie beispielsweise bei Anfahrvorgängen, kann eine transiente Temperaturbelastung in einer erheblichen Beanspruchung der Komponenten des Rauchgaskanals resultieren. Dadurch verursachte Schäden an den Komponenten des Rauchgaskanals haben eine Verringerung der Lebensdauer der gesamten Gasturbinenanlage zur Folge, was zu einer äußerst unerwünschten Reduzierung der Verfügbarkeit der Gasturbinenanlage führt. Aus der FR-A-2 469 563 ist ein einer Gasturbine nachgeschalteter Abgassammler bekannt, der ein Wärmeisolationselement zur Isolation von Einbauten gegen die Rauchgaswärme aufweist.Each component is common in the operation of the gas turbine heated by the exhaust gas or flue gas flowing through them. The flue gas cools down along the flue gas direction through heat exchange with the respective components from. Depending on their position in the flue gas duct, each becomes Component heated to a different temperature. Thus lie in the area of the transition between two components Structural parts heated to different temperature levels to each other, leading to mechanical stresses between leads the components. Especially when the load changes Gas turbine, such as during start-up operations, can transient temperature load in a considerable load of the components of the flue gas duct result. Thereby have caused damage to the components of the flue gas duct a reduction in the life of the entire gas turbine plant result in an extremely undesirable reduction the availability of the gas turbine plant. Out FR-A-2 469 563 is a downstream of a gas turbine Exhaust gas collector known, which is a thermal insulation element for insulation of internals against the flue gas heat.
Der Erfindung liegt die Aufgabe zugrunde, ein Übergangselement zwischen den Komponenten eines Rauchgaskanals der obengenannten Art anzugeben, das eine besonders lange Lebensdauer der Komponenten und somit der gesamten Gasturbinenanlage ermöglicht.The invention has for its object a transition element between the components of a flue gas duct of the above Specify the type that has a particularly long lifespan the components and thus the entire gas turbine system.
Diese Aufgabe wird erfindungsgemäß gelöst, indem das Übergangselement ein erstes Wärmeisolationselement aufweist, dessen Dicke zur Einstellung eines stetigen Temperaturprofils in einem Übergangsbereich linear von der Ortsvariablen entlang des Rauchgaskanals abhängt.This object is achieved by the transition element has a first heat insulation element, the Thickness for setting a constant temperature profile in along a transition area linearly from the location variable depends on the flue gas duct.
Die Erfindung geht dabei von der Überlegung aus, daß für eine lange Lebensdauer der Komponenten des Rauchgaskanals der Gasturbine abrupte Temperatursprünge zwischen benachbarten Komponenten vermieden sein sollten. Dies ist durch ein sich im Bereich des Übergangs zwischen jeweils zwei Komponenten des Rauchgaskanals langsam veränderndes Temperaturprofil erreichbar. Die Einstellung eines geeigneten Temperaturprofils kann demnach durch ein entsprechend modifiziertes Wärmeisolationselement bewirkt werden, indem dessen Dicke als Funktion der Ortsvariablen entlang des Rauchgaskanals variiert.The invention is based on the consideration that for a long life of the components of the flue gas duct of the gas turbine abrupt jumps in temperature between neighboring components should be avoided. This is due to an im Area of transition between two components of the Flue gas channel slowly changing temperature profile achievable. Setting a suitable temperature profile can accordingly by a correspondingly modified heat insulation element be effected by its thickness as a function of Location variables along the flue gas duct varied.
Für eine besonders effektive Reduzierung transienter Temperaturbelastungen der Komponenten ist das ein gestellte Temperaturprofil stetig. Dazu könnte die Wärmeisolierung stufenförmig ausgebildet sein. Zur Einstellung eines für die Vermeidung von Materialspannungen besonders geeigneten Temperaturprofils sollte jedoch eine nicht-stufenförmige Wärmeisolation eingesetzt werden. Dabei sollte die Dicke des Wärmeisolationselementes linear von der Ortskoordinaten abhängen. Ein derartiges Übergangselement ist zudem auf besonders einfache Weise herstellbar.For a particularly effective reduction of transient temperature loads of the components is one set temperature profile steadily. This could be the heat insulation be stepped. To set one particularly suitable for avoiding material tension However, the temperature profile should be a non-stepped Thermal insulation can be used. The thickness of the The thermal insulation element depends linearly on the location coordinates. Such a transition element is also special easy to manufacture.
Um lokale Temperaturschwankungen in den Komponenten besonders effektiv zu unterbinden und somit die Lebensdauer der Komponenten besonders wirkungsvoll zu steigern, ist die Länge des Übergangsbereichs vorzugsweise größer als die Temperatur-Abklinglänge des Wandmaterials der Komponenten. Die Temperatur-Abklinglänge ist dabei die physikalische Kenngröße zur Beschreibung einer lokalen Temperaturveränderung innerhalb eines Materials.To local temperature fluctuations in the components in particular effectively prevent and thus the life of the components The length of the Transition range preferably greater than the temperature decay length of the wall material of the components. The temperature decay length is the physical parameter for description a local temperature change within a Materials.
Eine transiente Temperaturbelastung des Wandmaterials der Komponenten wird zudem verringert, indem zweckmäßigerweise der Umfang mindestens einer der Komponenten in mindestens einem Teilbereich des Rauchgaskanals linear mit der Ortsvariablen variiert. Bei einem runden Querschnitt des Rauchgaskanals ist dieser Teilbereich somit konisch ausgebildet. Bei einem viereckigen Querschnitt des Rauchgaskanals entspricht der Teilbereich hingegen der Mantelfläche eines Pyramidenstumpfs.A transient temperature load on the wall material Components is also reduced by expediently the scope of at least one of the components in at least one Part of the flue gas duct linear with the location variable varies. With a round cross section of the flue gas duct this section is thus conical. At a square cross section of the flue gas duct corresponds to the In contrast, part of the lateral surface of a truncated pyramid.
Um eine Verbindung einer innen isolierten Komponente des Rauchgaskanals mit einer außen isolierten Komponente des Rauchgaskanals zu ermöglichen, weist das Übergangselement im Übergangsbereich zweckmäßigerweise ein erstes Wärmeisolationselement als Innenisolierung und ein zweites Wärmeisolationselement als Außenisolierung auf, deren Dicken als Funktion der Ortsvariablen gegenläufig variieren.To connect an internally isolated component of the Flue gas duct with an externally insulated component of the The transition element in the Transition area expediently a first heat insulation element as internal insulation and a second thermal insulation element as external insulation, whose thicknesses as a function of the location variables vary in opposite directions.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß sich durch die variierende Dicke des Wärmeisolationselementes beim Betrieb der Gasturbine ein Temperaturprofil derart einstellt, daß überhöhte Materialbelastungen der Komponenten des Rauchgaskanals vermieden sind. Insbesondere auch durch den Teilbereich, in dem der Umfang mindestens einer der Komponenten linear mit der Ortsvariablen variiert, sind aus unterschiedlichen thermischen Dehnungen verschiedener Komponenten resultierende radiale Zwängungen kompensierbar.The advantages achieved with the invention are in particular in that by the varying thickness of the heat insulation element a temperature profile during operation of the gas turbine sets such that excessive material loads the components of the flue gas duct are avoided. In particular also by the sub-area in which the scope at least one of the components varies linearly with the location variable, are different from different thermal expansions Component resulting radial constraints can be compensated.
Insbesondere auch bei Lastwechsel der Gasturbine ist somit eine zusätzliche Beanspruchung der Komponenten des Rauchgaskanals aufgrund der als Folge einer transienten Temperaturbelastung auftretenden Spannungen vermindert. Die zulässige Zyklenzahl der Gasturbine ist damit erhöht, was eine längere Lebensdauer bedingt.In particular, even when there is a load change in the gas turbine additional stress on the components of the flue gas duct due to the result of a transient temperature load occurring voltages are reduced. The allowable The number of cycles of the gas turbine is increased, which is a longer one Lifetime conditional.
Ein Ausführungsbeispiel der Erfindung wird anhand einer Zeichnung näher erläutert. Darin zeigen:
- FIG 1
- schematisch in einer Seitenansicht eine Gasturbine mit einem in einen Abhitzekessel einmündenden Rauchgaskanal und
- FIG 2 und 3
- einen Ausschnitt II bzw. III aus Figur 1 in größerem Maßstab mit jeweils einem Übergangselement zwischen zwei Komponenten an zwei unterschiedlichen Stellen des Rauchgaskanals der Gasturbine im Längsschnitt.
- FIG. 1
- schematically in a side view of a gas turbine with a flue gas duct opening into a waste heat boiler and
- 2 and 3
- a section II or III of Figure 1 on a larger scale, each with a transition element between two components at two different locations in the flue gas duct of the gas turbine in longitudinal section.
Einander entsprechende Teile sind in allen Figuren mit denselben Bezugszeichen versehen.Corresponding parts are the same in all figures Provide reference numerals.
Figur 1 zeigt - als Teil einer Kraftwerksanlage - eine
Gasturbinenanlage 1 mit einem der Gasturbine 2 über einen
Rauchgaskanal 4 nachgeschalteten Abhitzekessel 6 zur Dampferzeugung,
z.B. für eine (nicht dargestellte) Dampfturbine. Der
Rauchgaskanal 4 umfaßt als Komponenten oder Kanalstücke einen
Metallkompensator 8, einen Diffusor 10, einen Bypasskamin 12
und ein in den Abhitzekessel 6 mündendes Kanalstück 14.Figure 1 shows - as part of a power plant - one
Gas turbine system 1 with one of the
Beim Betrieb der Gasturbinenanlage 1 strömt aus der Gasturbine
2 austretendes heißes Rauchgas RG durch den Rauchgaskanal
4 in Richtung des Pfeils 20 in den Abhitzekessel 6. Das
im Abhitzekessel 6 bei der Dampferzeugung abgekühlte Rauchgas
RG verläßt den Abhitzekessel 6 über dessen Kamin 22.When the gas turbine system 1 is operating, it flows out of the
Die Geschwindigkeit des axial aus der Gasturbine 2 austretenden
heißen Rauchgases RG wird in dem mit dem Metallkompensator
8 verbundenen Diffusor 10 verringert, so daß der statische
Rauchgasdruck ansteigt. Aufgrund der hohen Austrittstemperatur
des heißen Rauchgases RG von etwa 500 bis 600° C entstehen
Wärmedehnungen, die von dem Metallkompensator 8 kompensiert
werden sollen. An Verbindungsstellen zwischen jeweils
zwei Komponenten 8 und 10, sowie 12 und 14 des Rauchgaskanals
4 treten darüber hinaus lokale und/oder transiente
Temperaturbelastungen aufgrund einer kontinuierlichen Abkühlung
des Rauchgases RG entlang einer durch den Pfeil 24 angedeuteten
Ortskoordinate x in Richtung des Rauchgaskanals 4
auf.The speed of the axially emerging from the
Um derartige Wärmespannungen durch Temperaturbelastungen zu
kompensieren und daraus resultierende Beschädigungen der Komponenten
8 und 10, sowie 12 und 14 des Rauchgaskanals 4 zu
vermeiden, weist der Rauchgaskanal 4 an den Verbindungsstellen
zwischen jeweils zwei der Komponenten 8, 10, 12, 14 jeweils
ein Übergangselement 30 und 30' auf, wie diese in den
Figuren 2 bzw. 3 im Ausschnitt dargestellt sind. Die Übergangselemente
30, 30' dienen zur Verbindung zweier Komponenten
8 und 10 bzw. 12 und 14 des Rauchgaskanals 4. Das Übergangselement
30, 30' kann dabei auch Teil einer der Komponenten
8, 10 bzw. 12, 14 sein. Entsprechende (nicht gezeigte)
Übergangselemente 30, 30' sind auch an anderen Verbindungsstellen
zu jeweils zwei Kanalstücken des Rauchkanals 4 vorgesehen.To such thermal stresses due to temperature loads
compensate and resultant damage to the
Das in Figur 2 dargestellte Übergangselement 30 umfaßt zur
Einstellung eines Temperaturprofils entlang der Ortskoordinaten
x beim Betrieb der Gasturbine 2 ein erstes Wärmeisolationselement
34, dessen Dicke d als Funktion der Ortsvariablen
x in einem Übergangsbereich 36 linear abnimmt. Durch das
sich somit einstellende stetige Temperaturprofil ist ein
"weicher" Temperaturübergang zwischen den Komponenten 8 und
10, und dadurch ist eine verminderte Spannungsbelastung der
Komponenten 8 und 10 gewährleistet.The
In einem Teilbereich 37 der Außenwand 38 nimmt der an der Außenwand
38 des Rauchgaskanals 4 gemessene Umfang des Übergangselements
30 linear ab. Somit ergibt sich bei einem runden
Querschnitt des Rauchgaskanals 4 eine konische Ausbildung
der Außenwand 38 im Teilbereich 37. Alternativ kann aber auch
der entsprechende Umfang der Komponente 8 und 10 linear variieren.In a
Um den Übergang von einer innen isolierten Komponente 8 auf
eine außen isolierte Komponente 10 zu ermöglichen, weist das
Übergangselement 30 ein zweites Wärmeisolationselement 40
auf, dessen Dicke d' als Funktion der Ortsvariablen x gegenläufig
zur Dicke d des ersten Wärmeisolationselements 34 variiert.To the transition from an internally insulated
Auch das Wärmeisolationselement 34' des Übergangselements 30'
gemäß Figur 3 weist zur Einstellung eines vorgesehenen Temperaturprofils
eine als Funktion der Ortskoordinaten x variierende
Dicke d auf. Zusätzlich variiert die Dicke d des Wärmeisolationselementes
34' als Funktion der Ortskoordinaten x
auch in einem zweiten Bereich 42 linear. Verwirbelungen des
den Rauchgaskanal 4 durchströmenden Rauchgases RG und daraus
resultierende Strömungsverluste sind somit gering gehalten.
Der im Teilbereich 37' linear mit der Ortsvariablen x variierende
Umfang der Außenwand 38' des Übergangselements 30' mündet
in einen Flansch 44 mit einer besonders geringen
Flanschhöhe h. Durch eine derart geringe Flanschhöhe h ist
der Flansch 44 unempfindlicher gegenüber Wärmedehnungen und
weist somit eine besonders lange Lebensdauer auf.The heat insulation element 34 'of the transition element 30'
according to FIG. 3 indicates the setting of an intended temperature profile
one that varies as a function of the location coordinates x
Thickness d. In addition, the thickness d of the heat insulation element varies
34 'as a function of the location coordinates x
also linear in a
Das Übergangselement 30' weist zudem einen an den Flansch 44
angeschlossenen Gewebekompensator 46 auf, der im Hinblick auf
temperatur-induzierte Verspannungen besonders flexibel ist.The
Claims (3)
- Transition element (30, 30') between components (8, 10, 12, 14) of a flue-gas duct (4) which is arranged downstream of a gas turbine (2) of a power station plant, having a first heat-insulation element (34, 34'), the thickness (d) of which .is linearly dependent upon a spatial coordinate (x) along the flue-gas duct (4) to set a continuous temperature profile in a transition region (36, 36').
- Transition element according to Claim 1, characterized in that the periphery of at least one of the components (8, 10, 12, 14) varies linearly with the spatial variable (x) at least in one section (37).
- Transition element for changing from an internally insulated component (8) to an externally insulated component (10) according to Claim 1 or 2, characterized by a second heat-insulation element (40) provided in addition to the first heat-insulation element (34), the thicknesses (d, d') of the two heat-insulation elements (34, 40) varying in opposite directions in the transition region (36).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19540606 | 1995-10-31 | ||
| DE19540606 | 1995-10-31 | ||
| PCT/DE1996/001980 WO1997016628A2 (en) | 1995-10-31 | 1996-10-17 | Transition element between components of the flue gas duct of a gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0858551A2 EP0858551A2 (en) | 1998-08-19 |
| EP0858551B1 true EP0858551B1 (en) | 2000-03-22 |
Family
ID=7776305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96945509A Expired - Lifetime EP0858551B1 (en) | 1995-10-31 | 1996-10-17 | Transition element between components of the flue gas duct of a gas turbine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0858551B1 (en) |
| DE (1) | DE59604798D1 (en) |
| WO (1) | WO1997016628A2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378176A1 (en) * | 1977-01-19 | 1978-08-18 | Bertin & Cie | Gas turbine exhaust silencer - has diverging entry and discharge sections with intermediate straight section having centrally supported blunt-ended tube |
| JPS5672206A (en) * | 1979-11-14 | 1981-06-16 | Nissan Motor Co Ltd | Diffuser with collector |
| CS272676B1 (en) * | 1988-06-07 | 1991-02-12 | Stastny Miroslav | Outlet branch for bladed machine |
-
1996
- 1996-10-17 WO PCT/DE1996/001980 patent/WO1997016628A2/en active IP Right Grant
- 1996-10-17 DE DE59604798T patent/DE59604798D1/en not_active Expired - Lifetime
- 1996-10-17 EP EP96945509A patent/EP0858551B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997016628A2 (en) | 1997-05-09 |
| DE59604798D1 (en) | 2000-04-27 |
| EP0858551A2 (en) | 1998-08-19 |
| WO1997016628A3 (en) | 1997-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69816532T2 (en) | Heat transfer structure | |
| EP1945911B1 (en) | Steam turbine | |
| DE3146096C2 (en) | Device for sealing the turbine blade radial gap | |
| DE1919568C3 (en) | Lining for the jet pipe of a gas turbine engine | |
| EP2342427B1 (en) | Axial segmented vane support for a gas turbine | |
| WO2006048401A1 (en) | Optimised turbine stage for a turbine engine and layout method | |
| EP0122872B1 (en) | Medium pressure steam turbine for a high temperature steam plant with intermediate reheating | |
| WO2000057033A1 (en) | Covering element and arrangement with a covering element and a support structure | |
| DE10042317A1 (en) | Steam turbine for combined cycle power plant, has quick acting valves in combination with regulating valves, provided in both fresh steam and bypass paths | |
| EP1653049A1 (en) | Vane ring assembly for gas turbines and method to modify the same | |
| DE2449430C2 (en) | Expansion joint of pipe parts | |
| EP1144910B1 (en) | Fossil fuel fired steam generator | |
| DE4227985A1 (en) | GAS TURBINE ARRANGEMENT WITH A COMBUSTOR OF TUBE BUNCH COMBUSTION CHAMBER TYPE | |
| EP0858551B1 (en) | Transition element between components of the flue gas duct of a gas turbine | |
| EP0838595A2 (en) | Blade support for a compressor | |
| EP2347101B1 (en) | Gas turbine and corresponding gas or steam turbine plant | |
| DE4101918A1 (en) | COMBUSTION PLANT | |
| DE69918084T2 (en) | FLOW MACHINE WITH AN INNER HOUSING AND AN OUTER HOUSING | |
| EP1234962B1 (en) | Method for operating a gas turbine power plant with cooling of the combustion air | |
| EP3670845B1 (en) | Turbomachine with static seal assembly | |
| WO2006072528A1 (en) | Gas turbine comprising a prerotation generator and method for operating a gas turbine | |
| EP0819842B1 (en) | Fixing element for liner panels of a gas turbine exhaust gas channel | |
| DE2711545C2 (en) | Heat exchangers with a large number of straight tube bundles | |
| EP3256783B1 (en) | Hot gas-conducting casing | |
| DE3309812C2 (en) | Outer housing for a gas turbine engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19980420 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE FR GB LI NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19990503 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI NL SE |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 59604798 Country of ref document: DE Date of ref document: 20000427 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000524 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20060105 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20061006 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20061012 Year of fee payment: 11 Ref country code: GB Payment date: 20061012 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061031 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| EUG | Se: european patent has lapsed | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20071017 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20080501 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20080630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071018 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080501 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20061018 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071017 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071031 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20121216 Year of fee payment: 17 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59604798 Country of ref document: DE Effective date: 20140501 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140501 |