EP1943462A1 - Brennerlanze - Google Patents
BrennerlanzeInfo
- Publication number
- EP1943462A1 EP1943462A1 EP06807282A EP06807282A EP1943462A1 EP 1943462 A1 EP1943462 A1 EP 1943462A1 EP 06807282 A EP06807282 A EP 06807282A EP 06807282 A EP06807282 A EP 06807282A EP 1943462 A1 EP1943462 A1 EP 1943462A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lance
- fuel
- head
- lance head
- control
- 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- Withdrawn
Links
- 239000007800 oxidant agent Substances 0.000 claims abstract description 40
- 239000000446 fuel Substances 0.000 claims description 94
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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
- F23R3/26—Controlling the air flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/008—Flow control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/07021—Details of lances
Definitions
- the invention relates to a lance for introducing a fuel into a mixing section of a premix burner, in particular a premix burner of a gas turbine plant, having the features of the preamble of claim 1.
- a lance which has a lance head, a fuel supply, an oxidator and a control device.
- the lance head projects in the mounted state into the mixing section of the burner and has at least one fuel nozzle for injecting the fuel into the mixing section and at least one oxidizer outlet opening for introducing an oxidizer into the mixing section.
- the fuel supply extends within the lance and is connected to the at least one fuel nozzle.
- the Oxidatorzu operation runs within the lance head and is connected to the at least one Oxidatoraustrittsö réelle.
- the control device serves to control a flow cross-section of the oxidizer feed.
- the control device has a rotary valve sleeve which contains a plurality of radial control openings.
- the rotary valve sleeve is rotatably mounted externally on a jacket of the lance head. Said jacket encloses an annular space which forms the annular oxidizer outlet opening on the outlet side. In the jacket a plurality of radial Oxidatoreinlassö réelleen are provided. By turning the rotary valve sleeve, the oxidator inlet openings of the jacket can be more or less coincided with the control openings of the rotary valve sleeve, whereby the flow cross section of the Oxidatorzu Insert can be controlled.
- the invention aims to remedy this situation.
- the invention as characterized in the claims, deals with the problem of providing for a lance of the type mentioned an improved, alternative embodiment, which is characterized by a comparatively inexpensive structure or by a simplified feasibility. According to the invention, this problem is solved by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.
- the invention is based on the general idea to realize the control of the deliverable via the lance oxidizer amount by means of a control piston, which is arranged for this purpose in the lance head adjustable in height.
- a control piston which is arranged for this purpose in the lance head adjustable in height.
- the flow cross section for opening and closing can thus be controlled.
- Such a stroke movement of the control piston can be realized comparatively easily.
- the production cost of the lance is reduced.
- control piston may be connected axially to a piston rod which extends inside the lance and which is connected in particular to a control piston drive at a lance end remote from the lance head.
- control piston drive can be arranged relatively far away from the hot burner, whereby the cost of cooling the control piston drive is reduced.
- the oxidator supply may have a control chamber arranged in the lance head, which is arranged upstream of the at least one oxidizer outlet opening and which has at least one radial oxidizer inlet opening.
- the control piston in this control chamber is arranged Hubver plausible, such that it depends on the stroke, the at least one Oxidatoreinlassö réelle more or less, so controls for opening and closing.
- this construction by the axial overlap between the control piston and the at least one Oxidatoreinlassö réelle the istströmbare cross section of the Oxidatorzu entry to be controlled. In this case, this structure is characterized by a high reliability.
- the fuel supply comprises at least one fuel line extending within the lance.
- the piston rod and the at least one fuel line are housed.
- FIG. 1 shows a greatly simplified axial section through a burner in the region of a lance, wherein the lance is shown axially shortened.
- a burner 1 comprises a mixing section 2.
- the burner 1, which is for example a premix burner, may preferably be a component of a turbine system, preferably a gas turbine system.
- a lance 3 which has a lance head 4 and a lance shaft 5.
- the Lance shaft 5 is here in its longitudinal direction, that is axially interrupted and thus shown extremely shortened.
- the lance head 4 is arranged in the shown mounted state on the burner 1 so that it projects into the mixing section 2. Preference is given to a coaxial arrangement of lance 3 and burner 1, so that the lance head 4 projects coaxially into the mixing section 2.
- the lance head 4 has at least one fuel nozzle 6, with the aid of which fuel can be injected into the mixing section 2.
- two such fuel nozzles 6 are exemplified.
- the lance head 4 has four such fuel nozzles 6, which are distributed in the circumferential direction and spaced from each other. In principle, however, the number of fuel nozzles 6 is arbitrary. It is noteworthy that the fuel nozzles 6 are arranged on the lance head 4 at a radially outer edge region. The fuel nozzles 6 are thus eccentric with respect to a longitudinal central axis 7 of the lance 3, that is arranged at a distance or at a certain radius.
- the lance head 4 is equipped with at least one oxidizer outlet opening 8, with the aid of which an oxidizer can be introduced into the mixing section 2.
- the lance head 4 only a single Oxidatoraustrittsö réelle 8. It is noteworthy that the Oxidatoraustrittsö réelle 8 is centrally located on the lance head 4.
- the Oxidatorein effet into the mixing section 2 thus takes place on the axial end face of the lance head 4 in the axial direction.
- the fuel nozzles 6 are thus arranged offset radially outward relative to the oxidizer outlet opening 8.
- the supplied via the lance head 4 oxidizer for the lance head 4 ensure adequate cooling and flushing.
- the fuel supplied via the lance 3 is preferably a liquid fuel, for example fuel oil.
- a gaseous fuel such as natural gas, may be supplied.
- the oxidizer is usually an oxygen-containing gas, preferably air.
- the lance 3 also has a fuel supply 9, which extends in the lance 3 and which is connected in the mounted state to a symbolized by an arrow fuel supply 10.
- the fuel supply 9 is connected to the fuel nozzles 6.
- the lance 3 comprises an oxidizer feed 11 which extends within the lance head 4 and which is connected in the mounted state to an oxidizer supply 12 symbolized by an arrow.
- the Oxidatorzu operation 11 is connected to the Oxidatoraustrittsö réelle 8.
- the lance 3 is also equipped with a control device 13, by means of which a flow cross-section of the oxidizer feed 11 and thus the amount of oxidant introduced into the mixing section 2 by the lance head 4 can be controlled.
- the control device 13 comprises a control piston 14, which is arranged to be adjustable in height in the lance head 4.
- the control piston 14 is arranged within the Oxidatorzu Entry 11 so that it can control the flow cross-section of the Oxidatorzu Insert 11 depending on its stroke.
- the control piston 14 in the lance longitudinal direction that is arranged to be adjustable in height parallel to the longitudinal central axis 7.
- the control piston 14 is arranged coaxially to the longitudinal central axis 7.
- a receiving cylinder 15 is also formed in the lance head 4, in which the control piston 14 is mounted adjustable in stroke.
- this receiving cylinder 15 is arranged coaxially to the longitudinal central axis 7.
- the control device 13 comprises a piston rod 16, which is connected axially to the control piston 14, specifically at its end remote from the oxidizer outlet 8.
- the piston rod 16 extends within the lance 3 or within the lance shaft 5, which is designed for this purpose as a tubular body.
- the embodiment shown here is preferred, in which the piston rod 16 extends centrally within the lance 3 or within the lance shaft 5, which is designed as a tubular body, that is to say coaxially to the longitudinal center axis 7.
- the lance 3 is provided with a control piston drive 18, which is drive-connected in a suitable manner to the piston rod 16 and with which the piston rod 16 is axially adjustable.
- the drive coupling between the piston rod 16 and the control piston drive 18 is a kind of spindle drive.
- control piston 14 is axially sharpened at its end facing the oxidizer outlet opening 8.
- this end is designed as a cone or cone.
- the Oxidatorzu Installation 11 comprises a control chamber 19, which is preferably arranged centrally in the lance head 4.
- this control chamber 19 of the control piston 14 is arranged strokever plausible.
- the control chamber 19 connects axially to the receiving cylinder 15, the receiving cylinder 15 is for this purpose
- Control chamber 19 axially open.
- the control chamber 19 forms an axial extension of the receiving cylinder 15.
- the control chamber 19 is arranged upstream of the oxidizer outlet opening 8 and has at least one radial oxidizer inlet opening 20. In the sectional view shown only two such Oxidatoreinlassö Maschinenen 20 can be seen. In principle, a single oxidizer inlet port 20 may be sufficient.
- the Oxidatoreinlassö réelleen 20 are designed here as axial slots, that is, their axial extent is greater than their extent in the circumferential direction.
- the axial length of the Oxidatoreinlassö réelleen 20 is tuned to the traversable by the control piston 14 axial stroke so that the control piston 14 by radial overlap of the Oxidatoreinlassö réelleen 20 more or less open or close depending on its stroke.
- the Oxidatoreinlassö réelleen 20 are maximum, preferably 100% open.
- the Oxidatoreinlassö réelleen 20 are maximum, preferably 100%, closed. With more or less opened Oxidatoreinlassö réelleen 20, the sharpened end of the control piston 14 supports a possible low-resistance deflection of the oxidant flow.
- the Oxidatorzu Installation 11 includes in the embodiment shown here also an oxidizer 21, which connects axially to the control chamber 19 and at its end remote from the control chamber 19 end the Oxidatoraustrittsö réelle 8 forms.
- the Oxidatorraum 21 is preferably centrally, that is arranged coaxially to the longitudinal central axis 7 in the lance head 4.
- the fuel feed 9 here comprises at least one fuel line 22, which is arranged in the interior of the lance 3 or in the interior of the lance shaft 5. Shown here is only a single fuel line 22. Of course, more than one fuel line 22 may be arranged in the lance 3.
- the fuel line 22 is not formed in the example by the lance 3 or by the lance shank 5 designed as a tubular body, but by a separate pipe component which is laid in the lance shank 5.
- the fuel line 22 extends eccentrically within the lance shaft 5 with respect to the longitudinal central axis 7. In this way, both the piston rod 16 and the fuel line 22 are accommodated in the lance shank 5 designed as a tubular body.
- the fuel supply 9 here also comprises a fuel ring channel 23, which is arranged in the lance head 4.
- the fuel ring channel 23 surrounds the receiving cylinder 15 coaxially.
- the fuel ring channel 23 is arranged coaxially in the lance head 4.
- the fuel ring channel 23 is connected to the fuel line 22.
- the fuel ring channel 23 is connected to the fuel nozzles 6, in each case via a fuel connection channel 24.
- These fuel connection channels 24 preferably extend axially in the lance head 4, ie parallel to the longitudinal center axis 7.
- Fuel connection channels 24 are provided as oxidizer inlet openings 20.
- the fuel connection channels 24 and the Oxidatoreinlassö réelleen 20 are then arranged alternately in the circumferential direction.
- the Oxidatorzu operation 11 is connected via their Oxidatoreinlassö réelleen 20 to an annular space 25 which is formed in the burner 1 and is connected via at least one feed line 26 to the Oxidatormakers 12.
- the supply of the oxidizer is thus carried out with respect to the longitudinal central axis 7 of the lance 3 radially from the outside.
- the oxidant stream can be guided radially inwards via the oxidizer inlet openings 20, the control chamber 19 and the oxidizer chamber 21, specifically in such a way that it flows centrally out of the lance head 4 in the axial direction via the oxidizer outlet opening 8 and flows into the mixing section 2.
- the fuel is supplied axially through the lance 3.
- the supplied fuel is distributed via the fuel ring channel 23 within the lance head 4 to a radially further outward radius, whereby it is the relative to the Oxidatoraustrittsö réelle 8 radially further outwardly disposed fuel nozzles 6 can be fed.
- the lance 3 is additionally equipped at its lance end 17 remote from the lance head 4 with a fuel collecting space 27, which is connected via a supply line 28 to the fuel supply 10. At this Brennstoffsammeiraum 27 also the at least one fuel line 22 is connected.
- the fuel nozzles 6 are designed so that they inject the fuel with respect to the axial direction of the lance 3, ie with respect to the longitudinal central axis 7, inclined in the mixing section 2.
- the fuel nozzles 6 inject the fuel obliquely into the mixing section 2 in relation to a central longitudinal plane of the lance 3 containing the longitudinal central axis 7.
- the fuel is injected in the direction or in the opposite direction of a swirl flow, the at a tangential introduction of Hauptoxidatorströmung formed in the mixing section 2.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH17682005 | 2005-11-04 | ||
PCT/EP2006/067423 WO2007051698A1 (de) | 2005-11-04 | 2006-10-16 | Brennerlanze |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1943462A1 true EP1943462A1 (de) | 2008-07-16 |
Family
ID=35840477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06807282A Withdrawn EP1943462A1 (de) | 2005-11-04 | 2006-10-16 | Brennerlanze |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080216482A1 (de) |
EP (1) | EP1943462A1 (de) |
CN (1) | CN101321990B (de) |
WO (1) | WO2007051698A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2116769A1 (de) * | 2008-05-09 | 2009-11-11 | ALSTOM Technology Ltd | Brennstofflanze für einen Brenner |
US8099941B2 (en) * | 2008-12-31 | 2012-01-24 | General Electric Company | Methods and systems for controlling a combustor in turbine engines |
EP2287456A1 (de) * | 2009-08-17 | 2011-02-23 | Alstom Technology Ltd | Gasturbine und Verfahren zum Betrieb der Gasturbine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2368178A (en) * | 1943-01-26 | 1945-01-30 | Hauck Mfg Co | Combination burner for liquid and gaseous fuels |
US2563028A (en) * | 1948-12-04 | 1951-08-07 | Daniel And Florence Guggenheim | Combustion apparatus comprising a combustion chamber with target type premixing extension |
US3093157A (en) * | 1960-12-02 | 1963-06-11 | Adrien J Aitken | Metering and mixing apparatus |
DE2729321C2 (de) * | 1977-06-29 | 1983-10-20 | Smit Ovens Nijmegen B.V., Nijmegen | Verfahren zur Verbrennung von flüssigem Brennstoff sowie Brennereinrichtung zurDurchführung des Verfahrens |
USH19H (en) * | 1983-12-21 | 1986-02-04 | The United States Of America As Represented By The United States Department Of Energy | Fuel injection device and method |
DE9103964U1 (de) * | 1991-04-02 | 1992-07-30 | Smit Ovens B.V., Nijmegen | Brenner für flüssige Brennstoffe |
DE10050248A1 (de) * | 2000-10-11 | 2002-04-18 | Alstom Switzerland Ltd | Brenner |
-
2006
- 2006-10-16 CN CN2006800454510A patent/CN101321990B/zh not_active Expired - Fee Related
- 2006-10-16 EP EP06807282A patent/EP1943462A1/de not_active Withdrawn
- 2006-10-16 WO PCT/EP2006/067423 patent/WO2007051698A1/de active Application Filing
-
2008
- 2008-05-05 US US12/115,129 patent/US20080216482A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2007051698A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007051698A1 (de) | 2007-05-10 |
CN101321990B (zh) | 2011-06-29 |
CN101321990A (zh) | 2008-12-10 |
US20080216482A1 (en) | 2008-09-11 |
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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: 20080424 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BERNERO, STEFANO Inventor name: VON PLANTA, MARTIN Inventor name: STEINBACH, CHRISTIAN Inventor name: RUCK, THOMAS |
|
17Q | First examination report despatched |
Effective date: 20081216 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20090428 |