CN103090412A - Injection apparatus - Google Patents

Injection apparatus Download PDF

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Publication number
CN103090412A
CN103090412A CN201210431695XA CN201210431695A CN103090412A CN 103090412 A CN103090412 A CN 103090412A CN 201210431695X A CN201210431695X A CN 201210431695XA CN 201210431695 A CN201210431695 A CN 201210431695A CN 103090412 A CN103090412 A CN 103090412A
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China
Prior art keywords
spray
tubular body
injection apparatus
shaped base
ring
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Pending
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CN201210431695XA
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Chinese (zh)
Inventor
L.J.斯托亚
P.B.梅尔顿
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General Electric Co
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General Electric Co
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Publication of CN103090412A publication Critical patent/CN103090412A/en
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    • 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
    • F23R3/34—Feeding into different combustion zones
    • F23R3/346—Feeding into different combustion zones for staged combustion
    • 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
    • F23R3/06—Arrangement of apertures along the flame tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/03282—High speed injection of air and/or fuel inducing internal recirculation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

An injection apparatus is provided and includes an annular base defining an injection hole location and having a protrusion about the injection hole location and a tubular body formed to define an injection hole, the tubular body to be sealably fastened to the annular base and the protrusion at the injection hole location such that the tubular body and the protrusion cooperatively define a plenum such that the plenum is communicative with the injection hole.

Description

Injection apparatus
Technical field
The present invention relates to a kind of injection apparatus, exactly, relate to a kind of injection apparatus be used to being connected to outer container, described outer container arranges around the inner pressurd vessel that is used for limiting primary flow path by shaping.
Background technology
The typical turbine such as gas-turbine unit comprises compressor, combustion chamber and turbine.Compressor compresses to produce Compressed Gas to inlet gas, and Compressed Gas is transferred into the combustion chamber.In the combustion chamber, Compressed Gas and fuel mix, and burning is to produce high temperature fluid.Subsequently, these high temperature fluids are directed to turbine, in order to produce power and/or electric power.In some cases, transition piece can be arranged between combustion chamber and turbine, so that high temperature fluid flowed transition piece before entering turbine.
Said process can produce the pollutants such as nitrogen oxide (NOx), and it is discharged in atmosphere.Recently, people have made some effort for the generation and the discharging that reduce pollutant.These effort comprise the fuel injection system that exploitation is axially staged, as late lean injection (LLI) system.In the LLI system, by the transition piece in combustion chamber or primary combustion zone downstream, some fuel and air are ejected in primary flow path.
Yet the problem of this type systematic is, axially staged injector or LLI injector must one be installed to transition piece, and this is a very complicated process, may cause other packing problems relevant with the transition piece impingement cooling cover.
Summary of the invention
According to an aspect of the present invention, provide a kind of injection apparatus, it comprises: ring-shaped base, and it limits the spray-hole position, and has around the protuberance of described spray-hole position; And tubular body, it is used for limiting spray-hole by shaping, described tubular body is fixed to described ring-shaped base and described protuberance in described spray-hole position in salable mode, so that: described tubular body and described protuberance consist of chamber jointly, and described chamber is communicated with described spray-hole.
According to a further aspect in the invention, provide a kind of injection apparatus be used to being connected to outer container, described outer container arranges around the inner pressurd vessel that is used for limiting primary flow path by shaping.Described injection apparatus comprises: ring-shaped base, and it is fixed to described outer container, and described ring-shaped base limits the spray-hole position, and has around the protuberance of described spray-hole position; And tubular body, it is used for limiting spray-hole by shaping, described tubular body is fixed to described ring-shaped base and described protuberance in described spray-hole position in salable mode, so that: described spray-hole makes between the outside and described primary flow path of described outer container and realizes being communicated with, and described tubular body and described protuberance consist of chamber jointly, and described chamber is communicated with described spray-hole.
According to another aspect of the invention, provide a kind of injection apparatus be used to being connected to outer container, described outer container arranges around the inner pressurd vessel that is used for limiting primary flow path by shaping.Described injection apparatus comprises: ring-shaped base, and it is fixed to described outer container, and described ring-shaped base limits the spray-hole position, and has around the protuberance of described spray-hole position; And tubular body, each tubular body is used for limiting spray-hole by shaping, and each tubular body is fixed to described ring-shaped base and described protuberance in each spray-hole position in salable mode, so that: in each spray-hole position, a corresponding described spray-hole makes between the outside and described primary flow path of described outer container and realizes being communicated with, and corresponding a described tubular body and a corresponding described protuberance consist of chamber jointly.A described tubular body of described correspondence further is used for limiting the extra injection hole by shaping, is communicated with in order to realizing between described chamber and described spray-hole.
Can more be well understood to these and other advantages and feature by the explanation of carrying out below in conjunction with accompanying drawing.
Description of drawings
These claims particularly point out and explicitly call for right of the present invention.Can be well understood to above and other feature of the present invention and advantage by the detailed description of carrying out below in conjunction with accompanying drawing, wherein unique accompanying drawing is:
Side schematic view according to the injection apparatus of each embodiment.
The specific embodiment is introduced various embodiments of the present invention and advantage and feature by way of example by the reference accompanying drawing.
The component symbol list:
Figure BDA00002344637200031
The specific embodiment
With reference to unique accompanying drawing, be illustrated as injection apparatus 10.Injection apparatus 10 is connected to outer container 11, as impact cooling cover or the fair water sleeves of exemplary turbine transition piece.Outer container 11 can arrange around inner pressurd vessel 12, and described inner pressurd vessel can be the turbine transition piece, and can be used for limiting primary flow path 120 by shaping.At the turbine run duration, high temperature fluid produces in the combustion chamber and guides towards turbine by the turbine transition piece.Therefore, high temperature fluid stream continues to flow along the primary flow path 120 of inner pressurd vessel 12.However, it should be understood that injection apparatus 10 can be connected to other containers in turbine and/or other system.Property example as an alternative, injection apparatus 10 can be connected to the rear end of the front end that impacts cooling cover (namely near axially injecting flow guiding sleeve), impact cooling cover, perhaps are connected to the fair water sleeves of combustion chamber.
Injection apparatus 10 comprises annular or ring-shaped base 20 and tubular body 40.Ring-shaped base 20 is configured to be fixed to outer container 11 by one or more in bolt, welding, sealing and butt welding.Ring-shaped base 20 has first surface 21, and described first surface is used for limiting spray-hole position 200 and protuberance 25 by shaping.Protuberance 25 is interior outstanding to surface 26 from ring- shaped base 20, and 200 circumferentially extends around the spray-hole position, thereby makes protuberance 25 become axial symmetry around the center line of inner pressurd vessel 12.Protuberance 25 comprises first component 27 and connector 30.First component 27 is from interior outstanding to surface 26, thereby makes first component 27 become axial symmetry around the center line of inner pressurd vessel 12.Connector 30 has first end 31 and the second end 32, and described first end is configured to the far-end that mode by for example welding is fixed to circumferentially around the spray-hole position 200 protuberance 25.33 places engage in the knee with supporting way for first end 31 and the second end 32, and described knee can be the angle or crooked, thereby make the second end 32 limit secondary spray-hole position 201, and described secondary spray-hole position can be corresponding with spray-hole position 200.
According to each embodiment, spray-hole position 200 and secondary spray-hole position 201 can be circle, perhaps in some cases, are circular.Similarly, protuberance 25, connector 30 and tubular body 40 also can have the circular cross-section corresponding with the shape of spray-hole position 200 and secondary spray-hole position 201, perhaps have in some cases the approximate circular cross-section (be it can be annular) corresponding with the shape of described spray-hole position and described secondary spray-hole position.
Tubular body 40 has enough length extending through the circuit of being located between outer container 11 and inner pressurd vessel 12, and has interiorly to surface 41, describedly interiorly is used for restriction tube-shaped sputtering hole 400 to the surface by shaping.By the bolt 42 that for example coordinates with ring-shaped base 20, tubular body 40 200 is sentenced the first surface 21 that salable mode is fixed to ring-shaped base 20 in the spray-hole position.Tubular body 40 also has protuberance 45, and described protuberance can be in secondary spray-hole position 201 be sentenced the second end 32 that salable mode is fixed to connector 30.Can salable mode be arranged between tubular body 40 and first surface 21 as seals 46 such as o ring or c shape seals, and between the second end 32 of protuberance 45 and connector 30.Tube-shaped sputtering hole 400 makes realizes between the outside of outer container 11 and primary flow path 120 that fluid is communicated with.
According to each embodiment, at the arrival end place of tubular body 40, tubular body 40 can comprise flange 47.Ring-shaped base 20 can comprise export-oriented surface 28, and is described export-oriented surperficial towards radially outer direction, and deviates from primary flow path 120.This extroversion surface 28 can have at 200 places, spray-hole position and is formed at the lip-deep fixed surface 280 of described extroversion, and in described spray-hole position, export-oriented surface 28 is processed to smooth and/or level and smooth, and therefore is configured to coordinate with flange 47.In the situation that use bolt 42 that tubular body 40 is fixed to ring-shaped base 20, bolt 42 extends through the fixed surface 280 on flange 47 and export-oriented surface 28.
Tubular body 40, connector 30, protuberance 25 and ring-shaped base 20 can consist of chamber 50 jointly.Tubular body 40 further is used for limiting extra injection hole 401 by shaping, is used for making between the inside of chamber 50 and tube-shaped sputtering hole 400 realizing that fluid is communicated with.Extra injection hole 401 can be made as a plurality of extra injection hole 401, and arrange in the tube-shaped sputtering hole 400 around tubular body 40 at chamber 50 places in described a plurality of extra injection holes.Interval between adjacent extra injection hole 401 may be even or heterogeneous.
In the situation that injection apparatus 10 can be connected to impact cooling cover or other like parts of turbine, chamber 50 can be supplied fuel, and the outside of outer container 11 can comprise compressed air, the compressor air-discharging that produces as the compressor by turbine.In these cases, the compressed air tubulose spray-hole 400 of flowing through, and take away the fuel flow that flows into tubulose spray-holes 400 from chamber 50.Thereby fuel mixes with compressed air, and is ejected in primary flow path 120 with the form of fuel/air mixture.Like this, injection apparatus 10 can be used as the part of the axially staged spraying system of turbine, perhaps exactly, can be used as the part of late lean injection (LLI) system of turbine.In the later case, fuel/air mixture can be thin, so that the burning of primary flow path 120 fuels/air mixture is used for reducing as the generation of the pollutants such as nitrogen oxide (NOx) and discharging subsequently.
The circuit of being located between outer container 11 and inner pressurd vessel 12 is supported by supporting construction 60 usually, a shape spacer of described supporting construction as arranging around inner pressurd vessel 12.According to each embodiment, these supporting constructions 60 can be arranged on the interior between surface 26 of the export-oriented surface of inner pressurd vessel 12 and ring-shaped base 20.
According to various aspects of the present invention, spray-hole position 200 (and above-mentioned additional structures) can be used as a plurality of spray-holes position 200.In these cases, a plurality of spray-holes position 200 may as non-symmetrical parts, be arranged around outer container 11 and inner pressurd vessel 12.Interval between adjacent spray-hole position 200 may be even or heterogeneous.According to exemplary embodiment, four spray-hole positions 200 can concentrate on the corresponding to around lower part of outer container 11 and inner pressurd vessel 12.
Although only the embodiment in conjunction with limited quantity describes the present invention in detail, should be understood that the present invention is not limited to this type of disclosed embodiment.On the contrary, the present invention can be by revising variation, change, the alternative or equivalent arrangements with any amount of not describing before containing but being consistent with the spirit and scope of the present invention.In addition, although described various embodiment of the present invention, should be understood that each aspect of the present invention can only comprise some embodiment in previous embodiment.Therefore, the present invention should not be considered as being subject to above stated specification, but only is subject to the scope of appended claims.

Claims (20)

1. injection apparatus, it comprises:
Ring-shaped base, described ring-shaped base limit the spray-hole position, and have around the protuberance of described spray-hole position; And
Tubular body, described tubular body is used for limiting spray-hole by shaping, and described tubular body is fixed to described ring-shaped base and described protuberance in described spray-hole position in salable mode, so that:
Described tubular body and described protuberance consist of chamber jointly, and described chamber is communicated with described spray-hole.
2. injection apparatus according to claim 1, wherein said ring-shaped base comprise export-oriented surface, and described export-oriented surface has in described spray-hole position and forms in the lip-deep fixed surface of described extroversion.
3. injection apparatus according to claim 1, it further comprises, seal, described seal are arranged between described tubular body and described ring-shaped base, and between described tubular body and described protuberance.
4. injection apparatus that is used for being connected to the outer container that arranges around inner pressurd vessel, described inner pressurd vessel is shaped and is used for limiting primary flow path, and described injection apparatus comprises:
Ring-shaped base, described ring-shaped base is fixed to described outer container, and described ring-shaped base limits the spray-hole position, and has around the protuberance of described spray-hole position; And
Tubular body, described tubular body is used for limiting spray-hole by shaping, and described tubular body is fixed to described ring-shaped base and described protuberance in described spray-hole position in salable mode, so that:
Described spray-hole makes between the outside and described primary flow path of described outer container and realizes being communicated with, and described tubular body and described protuberance consist of chamber jointly, and described chamber is communicated with described spray-hole.
5. injection apparatus according to claim 4, wherein said outer container comprises the impact cooling cover of turbine transition piece.
6. injection apparatus according to claim 4, wherein said chamber is supplied fuel, and the described outside of described outer container comprises compressed air.
7. injection apparatus according to claim 4, wherein said ring-shaped base is fixed to described outer container by one or more modes in bolt, welding, sealing and butt welding.
8. injection apparatus according to claim 4, wherein said ring-shaped base comprise export-oriented surface, and described export-oriented surface has in described spray-hole position and forms in the lip-deep fixed surface of described extroversion.
9. injection apparatus according to claim 4, it further comprises, is used for the supporting construction at the described ring-shaped base of described inner pressurd vessel upper support.
10. injection apparatus according to claim 4, it further comprises, seal, described seal are arranged between described tubular body and described ring-shaped base, and between described tubular body and described protuberance.
11. an injection apparatus that is used for being connected to around the outer container of inner pressurd vessel setting, described inner pressurd vessel is used for limiting primary flow path by shaping, and described injection apparatus comprises:
Ring-shaped base, described ring-shaped base is fixed to described outer container, and described ring-shaped base limits the spray-hole position, and has around the protuberance of described spray-hole position; And
Tubular body, each tubular body is used for limiting spray-hole by shaping, and each tubular body is fixed to described ring-shaped base and described protuberance in each spray-hole position in salable mode, so that in each spray-hole position:
Spray-hole of correspondence in described spray-hole makes between the outside and described primary flow path of described outer container and realizes being communicated with, and the protuberance of correspondence in tubular body of the correspondence in described tubular body and described protuberance consists of chamber jointly,
A described corresponding tubular body in described tubular body further is used for limiting the extra injection hole by shaping, is communicated with realizing between described chamber and described spray-hole.
12. injection apparatus according to claim 11, wherein said outer container comprise the impact cooling cover of turbine transition piece.
13. injection apparatus according to claim 11, wherein said chamber is supplied fuel, and the described outside of described outer container comprises compressed air.
14. injection apparatus according to claim 11, wherein said ring-shaped base is fixed to described outer container by one or more modes in bolt, welding, sealing and butt welding.
15. injection apparatus according to claim 11, wherein said ring-shaped base comprise export-oriented surface, described export-oriented surface has in described spray-hole position and forms in the lip-deep fixed surface of described extroversion.
16. injection apparatus according to claim 11, it further comprises, is used for the supporting construction at the described ring-shaped base of described inner pressurd vessel upper support.
17. injection apparatus according to claim 11, it further comprises, seal, described seal are arranged between described tubular body and described ring-shaped base, and between described tubular body and described protuberance.
18. injection apparatus according to claim 11, wherein said spray-hole position and anisotropically spaced apart each other.
19. injection apparatus according to claim 11, concentrate wherein said spray-hole position.
20. injection apparatus according to claim 11, wherein arrange around the circumference of the described spray-hole that is limited by described corresponding tubular body in the described extra injection hole of each corresponding tubular body.
CN201210431695XA 2011-11-01 2012-11-01 Injection apparatus Pending CN103090412A (en)

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US13/286,744 2011-11-01
US13/286,744 US20130104553A1 (en) 2011-11-01 2011-11-01 Injection apparatus

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Publication number Priority date Publication date Assignee Title
US9097130B2 (en) * 2012-09-13 2015-08-04 General Electric Company Seal for use between injector and combustion chamber in gas turbine
US20150052905A1 (en) * 2013-08-20 2015-02-26 General Electric Company Pulse Width Modulation for Control of Late Lean Liquid Injection Velocity
WO2015030927A1 (en) 2013-08-30 2015-03-05 United Technologies Corporation Contoured dilution passages for a gas turbine engine combustor
US20160047317A1 (en) * 2014-08-14 2016-02-18 General Electric Company Fuel injector assemblies in combustion turbine engines
US20170268783A1 (en) * 2016-03-15 2017-09-21 General Electric Company Axially staged fuel injector assembly mounting
US11137144B2 (en) 2017-12-11 2021-10-05 General Electric Company Axial fuel staging system for gas turbine combustors
US10816203B2 (en) * 2017-12-11 2020-10-27 General Electric Company Thimble assemblies for introducing a cross-flow into a secondary combustion zone
US20220307694A1 (en) * 2021-03-26 2022-09-29 Raytheon Technologies Corporation Modular injector bolt for an engine

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US20090071158A1 (en) * 2007-07-30 2009-03-19 Snecma Fuel injector for injecting fuel into a turbomachine combustion chamber
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CN101776017A (en) * 2009-01-07 2010-07-14 通用电气公司 Late lean injection system configuration
CN101776014A (en) * 2009-01-07 2010-07-14 通用电气公司 Late lean injection with expanded fuel flexibility
US20110056206A1 (en) * 2009-09-08 2011-03-10 Wiebe David J Fuel Injector for Use in a Gas Turbine Engine

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Publication number Priority date Publication date Assignee Title
CN1743734A (en) * 2004-09-02 2006-03-08 通用电气公司 Concentric fixed dilution and variable bypass air injection for a combustor
US20090071158A1 (en) * 2007-07-30 2009-03-19 Snecma Fuel injector for injecting fuel into a turbomachine combustion chamber
CN101676535A (en) * 2008-09-17 2010-03-24 通用电气公司 Fuel nozzle tip assembly
CN101776017A (en) * 2009-01-07 2010-07-14 通用电气公司 Late lean injection system configuration
CN101776014A (en) * 2009-01-07 2010-07-14 通用电气公司 Late lean injection with expanded fuel flexibility
US20110056206A1 (en) * 2009-09-08 2011-03-10 Wiebe David J Fuel Injector for Use in a Gas Turbine Engine

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EP2589875B1 (en) 2014-12-10
EP2589875A1 (en) 2013-05-08
US20130104553A1 (en) 2013-05-02

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Application publication date: 20130508