CN106247402B - A kind of burner inner liner - Google Patents

A kind of burner inner liner Download PDF

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Publication number
CN106247402B
CN106247402B CN201610663386.3A CN201610663386A CN106247402B CN 106247402 B CN106247402 B CN 106247402B CN 201610663386 A CN201610663386 A CN 201610663386A CN 106247402 B CN106247402 B CN 106247402B
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China
Prior art keywords
holes
inner liner
burner inner
aperture
wall
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CN201610663386.3A
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Chinese (zh)
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CN106247402A (en
Inventor
门玉宾
柴昕
呼姚
张弛
曹阳
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AECC Shenyang Engine Research Institute
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AVIC Shenyang Engine Design and Research Institute
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Priority to CN201610663386.3A priority Critical patent/CN106247402B/en
Publication of CN106247402A publication Critical patent/CN106247402A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04Air inlet arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/42Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers

Abstract

The present invention relates to the design of gas-turbine combustion chamber flame tube structure, in particular to a kind of burner inner liners, at least to solve the problems, such as that existing flame tube structure can reduce the service life of burner inner liner inner wall and turbine part.Burner inner liner includes flame drum outer wall, burner inner liner inner wall and multiple flame tube heads;First primary holes, two the first blending holes and multiple first cooling holes are provided on flame drum outer wall, the aperture of two the first blending holes is identical, and the aperture of multiple first cooling holes is different;Second primary holes, two the second blending holes and multiple second cooling holes are provided on flame drum outer wall, the aperture of two the second blending holes is different, and the aperture of multiple first cooling holes is different;The aperture of two blending holes is not identical on flame drum outer wall;Burner inner liner of the invention can be effectively reduced the temperature gradient of the inside and outside wall surface of burner inner liner, can improve combustor exit temperature field quality, so that high-temperature region radial position improves, be conducive to the service life for improving burner inner liner and turbine part.

Description

A kind of burner inner liner
Technical field
The present invention relates to the design of gas-turbine combustion chamber flame tube structure, in particular to a kind of burner inner liners.
Background technique
In modern gas turbines combustion chamber flame drum and experimental rig, usual aperture is all to be evenly arranged, but from component Test result discovery, burner inner liner are not uniformly to burn, but side temperature is higher partially, another temperature is lower.Work as flame Cylinder is when having certain inclination angle, often the temperature drift of inner wall, flame kernel also movement on the lower side.It can all reduce in burner inner liner in this way The service life of wall and turbine part.
Summary of the invention
The object of the present invention is to provide a kind of burner inner liners, can be reduced in burner inner liner at least solving existing flame tube structure The problem of service life of wall and turbine part.
The technical scheme is that
A kind of burner inner liner, including flame drum outer wall, burner inner liner inner wall and multiple flame tube heads, multiple flame tube heads It is uniformly arranged in the circumferential direction axial one end of the annular interior cavity formed in the flame drum outer wall and burner inner liner inner wall, by the flame After drum outer wall is divided into equal portions identical with the flame tube head quantity along direction of axis line, one is provided on each equal portions A first primary holes, two the first blending holes and multiple first cooling holes, in which:
The axial line of the flame tube head on the equal portions on the flame drum outer wall first projected it is described The center of first primary holes;Two first blending holes are located at one far from the flame tube head of first primary holes Side, and it is symmetricly set on the radially opposite sides of first projection;A part in multiple first cooling holes is distributed in described Around first primary holes, radially it is divided into multiple rows of, and respectively aperture is different again in the first cooling hole described in each row Three parts, middle section aperture is maximum, and axial bisector is projected with described first to be overlapped, first cooling hole of two sides Aperture be respectively less than the first cooling hole aperture described in middle section, and wherein side be greater than the other side;Multiple described first is cooling Another part in hole is distributed in around two first blending holes, be radially divided into it is multiple rows of, and in each row institute State in the first cooling hole and be divided into the descending three parts in aperture;
After the burner inner liner inner wall is divided into equal portions identical with the flame tube head quantity along direction of axis line, Second primary holes, two the second blending holes and multiple second cooling holes are provided on each equal portions, in which:
The axial line of the flame tube head on the equal portions on the burner inner liner inner wall second projected it is described The center of second primary holes;The aperture of two second blending holes is different, is respectively positioned on the separate described of second primary holes The side of flame tube head, and it is symmetricly set on the radially opposite sides of second projection;One in multiple second cooling holes Part is distributed in around second primary holes, be radially divided into it is multiple rows of, and in the second cooling hole described in each row Respectively the different three parts in aperture, middle section aperture maximum, axial bisector are overlapped with second projection again, two sides The aperture of second cooling hole is respectively less than the second cooling hole aperture described in middle section, and wherein side is greater than the other side;It is more Another part in a second cooling hole is distributed in around two second blending holes, is radially divided into more Row, and the descending three parts in aperture are divided into the second cooling hole described in each row again.
Optionally, the aperture of first primary holes is equal to the aperture of second primary holes.
Optionally, the aperture of first blending hole is less than the aperture of the smallest second blending hole.
Optionally, first cooling hole around first primary holes is divided into four rows, and described in first row One cooling hole is located at the axial side far from the flame tube head at first primary holes midpoint.
Optionally, first cooling hole around first blending hole is divided into three rows.
Optionally, second cooling hole around second primary holes is divided into four rows, and described in first row Two cooling holes are located at the axial side far from the flame tube head at second primary holes midpoint.
Optionally, second cooling hole around second blending hole is divided into three rows.
Optionally, the flame tube head include the cyclone of coaxial arrangement, Venturi tube, head turn the stage, sleeve and Splash pan.
Optionally, the head turns to be uniformly provided with multiple stomatas on the stage in the axial direction
Optionally, the burner inner liner further include:
Burner inner liner inner wall turns the stage, is the cirque structure that cross sectional shape is " " type, in diameter big end and burner inner liner Wall tail end is integrally welded, and small end size is identical as the size of socket in burner inner liner and casing;
Flame drum outer wall turns the stage, is the cirque structure that cross sectional shape is " " type, diameter small end and flame drum outer wall Tail end is integrally welded, and big end size is identical as burner inner liner and the outer size of socket of casing.
Invention effect:
Burner inner liner of the invention can be effectively reduced the temperature gradient of the inside and outside wall surface of burner inner liner, can improve combustion chamber Outlet temperature field quality is conducive to the service life for improving burner inner liner and turbine part so that high-temperature region radial position improves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of burner inner liner of the present invention;
Fig. 2 is the outer wall schematic diagram of burner inner liner of the present invention
Fig. 3 is flame drum outer wall A of the present invention to schematic diagram;
Fig. 4 is the inner wall schematic diagram of burner inner liner of the present invention
Fig. 5 is burner inner liner inner wall B of the present invention to schematic diagram;
Fig. 6 is flame tube head structural schematic diagram of the present invention;
Fig. 7 is flame tube head C of the present invention to schematic diagram.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention The limitation of range.
1 to Fig. 7 burner inner liner of the present invention is described in further details with reference to the accompanying drawing.
The present invention provides a kind of burner inner liners, including flame drum outer wall 4, burner inner liner inner wall 2 and multiple flame tube heads 1, multiple flame tube heads 1 are uniformly arranged in the circumferential direction the axial direction of the annular interior cavity formed in flame drum outer wall 4 and burner inner liner inner wall 2 One end.
In addition, cyclone 11, Venturi tube 12, head that flame tube head 1 includes coaxial arrangement again turn stage 13, sleeve 14 And splash pan 15;Cyclone 11 is divided into major and minor cyclone again;Head turns to be uniformly provided in the axial direction on the stage 13 multiple Stomata.Wherein, each flame tube head 1 is relatively independent, and different tolerance apertures hole is mainly matched according to major and minor cyclone The head of diameter turns the stage 13, Venturi tube 12, sleeve 14 and the splash pan 15 etc. of different tolerance dimension final guarantee tissue burning Required air quantity, each head are completely the same.
The quantity of flame tube head 1, which can according to need, carries out suitable selection.
In burner inner liner of the invention, flame drum outer wall 4 is that basic model face is the columnar structured of thinner thickness;It can will be fiery After flame drum outer wall 4 is divided into equal portions identical with 1 quantity of flame tube head along direction of axis line, one is provided on each equal portions 41, two the first blending holes 42 of a first primary holes and multiple first cooling holes 43.
Specifically, the axle center of the flame tube head 1 on equal portions (portion in above-mentioned each equal portions) the flame drum outer wall 4 First center that projected first primary holes 41 of the line on flame drum outer wall 4.Two the first blending holes 42 are located at the first main combustion The side of the separate flame tube head (1) in hole 41, and it is symmetricly set on the radially opposite sides of the first projection.
In addition, a part in multiple first cooling holes 43 is distributed in around the first primary holes 41, radially divide It is multiple rows of;And ranked first in cooling hole 43 again the respectively different three parts in aperture each, middle section aperture is maximum, axial direction Bisector is overlapped with first projection, and the aperture of the first cooling hole 43 of two sides is respectively less than 43 hole of the first cooling hole of middle section Diameter, and wherein side is greater than the other side;Equally, another part in multiple first cooling holes 43 is distributed in two the first blending holes Around 42, be radially divided into it is multiple rows of, and it is each ranked first in cooling hole 43 and be divided into aperture it is descending three Part.
The number of rows of above-mentioned first cooling hole 43, which can according to need, carries out suitable set;It originally is to be located at first in embodiment The first cooling hole 43 around primary holes 41 divides for four rows, and the first cooling hole of first row 43 is located at 41 midpoint of the first primary holes Axial side far from flame tube head 1.And the first cooling hole 43 being located at around the first blending hole 42 divides for three rows.
In burner inner liner of the invention, burner inner liner inner wall 2 is that basic model face is the columnar structured of thinner thickness;Equally may be used also After burner inner liner inner wall 2 is divided into equal portions identical with 1 quantity of flame tube head along direction of axis line, set on each equal portions It is equipped with 21, two the second blending holes 22 of second primary holes and multiple second cooling holes 23.
Specifically, second in the axial line of the flame tube head 1 on the equal portions on burner inner liner inner wall 2 projected second The center of primary holes 21.The aperture of two the second blending holes 22 is different, is respectively positioned on the separate flame tube head 1 of the second primary holes 22 Side, and be symmetricly set on the radially opposite sides of the second projection.
In addition, a part in multiple second cooling holes 23 is distributed in around the second primary holes 22, radially divide It is multiple rows of;And ranked second in cooling hole 23 again the respectively different three parts in aperture each, middle section aperture is maximum, axial direction Bisector is overlapped with the second projection, and the aperture of the second cooling hole 23 of two sides is respectively less than 23 hole of the second cooling hole described in middle section Diameter, and wherein side is greater than the other side;Another part in multiple second cooling holes 23 is distributed in two the second blending holes 22 weeks It encloses, is radially divided into multiple rows of, and ranked second in cooling hole 23 and be divided into the descending three parts in aperture each. Equally, in the present embodiment, the second cooling hole 23 around the second primary holes 21 divides for four rows, and the second cooling hole of first row 23 are located at the axial side of the separate flame tube head 1 at 21 midpoint of the second primary holes.And it is located at the around the second blending hole 22 Two cooling holes 23 divide for three rows.
Further, in burner inner liner of the invention, preferably the aperture of the first primary holes 41 be equal to the second primary holes 21 aperture, PreferablyBetween;The aperture of first blending hole 42 and the second blending hole 22 is preferably Between, and the aperture of the first blending hole 42 is less than the aperture of the smallest second blending hole 22;First cooling hole 43 and second is cooling The aperture in hole 2 is preferablyBetween.Further, the pitch-row between each hole is preferablyIt Between.
Burner inner liner of the invention can also include that burner inner liner inner wall turns the stage 3, flame drum outer wall turns the stage 5.
It is the cirque structure that cross sectional shape is " " type that burner inner liner inner wall, which turns the stage 3, in diameter big end and burner inner liner Wall tail end is integrally welded, and small end size is identical as the size of socket in burner inner liner and casing;Flame drum outer wall turns the stage 5, Be cross sectional shape be " " type cirque structure, diameter small end and flame drum outer wall tail end are integrally welded, big end size and The size of the outer socket of burner inner liner and casing is identical.
Burner inner liner of the invention can be effectively reduced the temperature gradient of the inside and outside wall surface of burner inner liner, can improve combustion chamber Outlet temperature field quality is conducive to the service life for improving burner inner liner and turbine part so that high-temperature region radial position improves.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims It is quasi-.

Claims (10)

1. a kind of burner inner liner, including flame drum outer wall (4), burner inner liner inner wall (2) and multiple flame tube heads (1), Duo Gesuo It states flame tube head (1) and is uniformly arranged in the circumferential direction the annular interior cavity formed in the flame drum outer wall (4) and burner inner liner inner wall (2) Axial one end, which is characterized in that the flame drum outer wall (4) is divided into and the flame tube head along direction of axis line (1) after the identical equal portions of quantity, be provided on each equal portions first primary holes (41), two the first blending holes (42) with And multiple first cooling holes (43), in which:
The axial line of the flame tube head (1) on the equal portions first projected institute on the flame drum outer wall (4) State the center of the first primary holes (41);Two first blending holes (42) are located at the separate described of first primary holes (41) The side of flame tube head (1), and it is symmetricly set on the radially opposite sides of first projection;Multiple first cooling holes (43) In a part be distributed in around first primary holes (41), be radially divided into it is multiple rows of, and the described in each row Respectively different three parts in aperture again in one cooling hole (43), middle section aperture is maximum, axial bisector and described first Projection is overlapped, and the aperture of first cooling hole (43) of two sides is respectively less than the first cooling hole (43) aperture described in middle section, And wherein side is greater than the other side;Another part in multiple first cooling holes (43) is distributed in two first blending Around hole (42), be radially divided into it is multiple rows of, and be divided into again in the first cooling hole (43) described in each row aperture by Small three parts are arrived greatly;
After the burner inner liner inner wall (2) is divided into equal portions identical with the flame tube head (1) quantity along direction of axis line, Second primary holes (21), two the second blending holes (22) and multiple second cooling holes are provided on each equal portions (23), in which:
The axial line of the flame tube head (1) on the equal portions second projected institute on the burner inner liner inner wall (2) State the center of the second primary holes (21);The aperture of two second blending holes (22) is different, is respectively positioned on second primary holes (22) the side far from the flame tube head (1), and it is symmetricly set on the radially opposite sides of second projection;It is multiple described A part in second cooling hole (23) is distributed in around second primary holes (22), be radially divided into it is multiple rows of, and Respectively the different three parts in aperture, middle section aperture maximum are axial flat again in the second cooling hole (23) described in each row Separated time is overlapped with second projection, and it is cold that the aperture of second cooling hole (23) of two sides is respectively less than described in middle section second But hole (23) aperture, and wherein side is greater than the other side;Another part in multiple second cooling holes (23) is distributed in two Around a second blending hole (22), be radially divided into it is multiple rows of, and in the second cooling hole (23) described in each row It is divided into the descending three parts in aperture again.
2. burner inner liner according to claim 1, which is characterized in that the aperture of first primary holes (41) is equal to described the The aperture of two primary holes (21).
3. burner inner liner according to claim 1, which is characterized in that the aperture of first blending hole (42) is less than the smallest The aperture of second blending hole (22).
4. burner inner liner according to claim 1, which is characterized in that described the be located at around first primary holes (41) One cooling hole (43) is divided into four rows, and the first cooling hole (43) described in first row is located at the remote of the first primary holes (41) midpoint Axial side from the flame tube head (1).
5. burner inner liner according to claim 4, which is characterized in that described the be located at around first blending hole (42) One cooling hole (43) is divided into three rows.
6. burner inner liner according to claim 1, which is characterized in that described the be located at around second primary holes (21) Two cooling holes (23) are divided into four rows, and the second cooling hole (23) described in first row is located at the remote of the second primary holes (21) midpoint Axial side from the flame tube head (1).
7. burner inner liner according to claim 6, which is characterized in that described the be located at around second blending hole (22) Two cooling holes (23) are divided into three rows.
8. burner inner liner according to claim 1-7, which is characterized in that the flame tube head (1) includes coaxial The cyclone (11) of setting, Venturi tube (12), head turn stage (13), sleeve (14) and splash pan (15).
9. burner inner liner according to claim 8, which is characterized in that the head turns uniform in the axial direction on stage (13) It is provided with a plurality of air holes.
10. burner inner liner according to claim 8, which is characterized in that further include:
Burner inner liner inner wall turns stage (3), is the cirque structure that cross sectional shape is " " type, diameter big end and burner inner liner inner wall Tail end is integrally welded, and small end size is identical as the size of socket in burner inner liner and casing;
Flame drum outer wall turns stage (5), is the cirque structure that cross sectional shape is " " type, diameter small end and flame drum outer wall tail Hold integrally welded, big end size and burner inner liner and the outer size of socket of casing are identical.
CN201610663386.3A 2016-08-12 2016-08-12 A kind of burner inner liner Active CN106247402B (en)

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CN108758690B (en) * 2018-05-31 2020-08-21 广州珠江天然气发电有限公司 Combustion chamber for a gas turbine
CN113701189A (en) * 2021-08-13 2021-11-26 中国航发沈阳发动机研究所 Flame tube head and flame tube thereof
CN113701193B (en) * 2021-08-13 2023-02-28 中国航发沈阳发动机研究所 Flame tube of gas turbine
CN115183277A (en) * 2022-06-02 2022-10-14 中国航发四川燃气涡轮研究院 Flame tube

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Inventor after: Li Hongxin

Inventor after: Kyogyoku

Inventor after: Chai Xin

Inventor after: Hu Yao

Inventor after: Zhang Chi

Inventor after: Cao Yang

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Address after: Shenhe District of Shenyang City, 110015 Wan Lin Road No. 1 in Liaoning Province

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Patentee before: AVIC SHENYANG ENGINE DESIGN & Research Institute