CN206001469U - A kind of engine chamber flame tube head and the attachment structure of cylinder - Google Patents
A kind of engine chamber flame tube head and the attachment structure of cylinder Download PDFInfo
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- CN206001469U CN206001469U CN201620609141.8U CN201620609141U CN206001469U CN 206001469 U CN206001469 U CN 206001469U CN 201620609141 U CN201620609141 U CN 201620609141U CN 206001469 U CN206001469 U CN 206001469U
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- flame tube
- tube head
- head
- cover plate
- attachment structure
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Abstract
The utility model discloses a kind of engine chamber flame tube head and the attachment structure of cylinder, it is related to gas turbine technology field.Described engine chamber flame tube head comprises flame tube head (7), outer fixing portion, interior fixed part and cover plate (9) with the attachment structure of cylinder；Described cover plate (9) is fixedly connected with casing (8)；One end of described outer fixing portion is fixedly connected with described cover plate (9), and the other end is used for the cylindrical of spacing described flame tube head (7), is provided with the first gap between described outer fixing portion and described flame tube head (7)；One end of described interior fixed part is fixedly connected with described cover plate (9), and the other end is used for the inner circle of spacing described flame tube head (7), is provided with the second gap between described interior fixed part and described flame tube head (7).The utility model has the advantage of：Flame tube head has certain activity space, solves the cold and hot mismatch problem leading to greatly due to the swollen difference of coefficients of line of material.
Description
Technical field
This utility model is related to gas turbine technology field and in particular to a kind of engine chamber flame tube head and cylinder
The attachment structure of body.
Background technology
High thrust-weight ratio aero-engine is to develop the basis of advanced military aircraft, improve electromotor turbine inlet temperature (TIT) and
Reducing construction weight is the main path improving thrust-weight ratio, and for ensureing combustibility, combustion air ratio need to be significantly increased, cooling
The ratio of air reduces.High temperature rise combustor, under conditions of cooling tolerance distribution reduces and cools down gas quality decline, is gone back simultaneously
Require the durability keeping further even improving burner inner liner.For meeting above-mentioned requirements, except using advanced burner inner liner wall cooling
Technology is outer in addition it is also necessary to using the high temperature resistant, structural material of low-density, high-strength tenacity, this is that engine performance improves constantly
Need, be also the key improving aero-engine thrust-weight ratio.But existing burner inner liner line of material is swollen, and difference of coefficients is big, lead to typically exist
Mismatch with mounting structure under cold-hot condition after being heated, flame tube head is easily because the expanding distortion that is heated breaks down.
Utility model content
The purpose of this utility model is the attachment structure providing a kind of engine chamber flame tube head and cylinder, to solve
Certainly or at least mitigate the problem at least in the presence of background technology.
The technical solution of the utility model is：The connection knot of a kind of engine chamber flame tube head and cylinder is provided
Structure, comprises flame tube head, outer fixing portion, interior fixed part and cover plate；Described cover plate is fixedly connected with casing；Described outer fixing portion
One end be fixedly connected with described cover plate, the other end is used for the cylindrical of spacing described flame tube head, described outer fixing portion and institute
State and between flame tube head, be provided with the first gap；One end of described interior fixed part is fixedly connected with described cover plate, and the other end is used
It is provided with the second gap between the inner circle of spacing described flame tube head, described interior fixed part and described flame tube head.
Preferably, described outer fixing portion comprises support ring, outer wall, head group section and outer baffle block；One end of described outer wall
It is connected with described cover plate, the other end is connected with described support ring, described head group section and described outer wall are away from one end of cover plate
Connect；Described outer baffle block is connected with described support ring；Described head group section and described outer baffle block form described flame tube head
Cylindrical limiting section.
Preferably, the first gap width between the adjacent side of the side of described flame tube head and described outer baffle block is
0.4mm to 1.0mm.
Preferably, described interior fixed part comprises inwall, head group section, internal stop；One end of described inwall and described lid
Plate is fixedly connected, and the other end is connected with described head group section and internal stop, and described head group section and described internal stop are formed
The inner circle limiting section of described flame tube head.
Preferably, the second gap width between the adjacent side of the side of described flame tube head and described internal stop is
0.4mm to 1.0mm.
Preferably, described support ring, outer wall, inwall, head group section, outer baffle block, internal stop Ceramics base composite wood
Material makes.
The utility model has the advantage of：The connection knot of engine chamber flame tube head of the present utility model and cylinder
In structure, flame tube head is carried out positioning is installed by outer fixing portion and interior fixed part, outer fixing portion is used for spacing burner inner liner head
Portion cylindrical, interior fixed part is used for the inner circle of spacing flame tube head, and the side of flame tube head and outer fixing portion and interior solid
Determine to be provided with gap between portion, flame tube head has certain activity space, solve due to the swollen difference of coefficients of line of material big
The cold and hot leading to mismatches.
Brief description
Fig. 1 is that the engine chamber flame tube head of this utility model one embodiment is illustrated with the attachment structure of cylinder
Figure.
Wherein, 1- support ring, 2- outer wall, 3- inwall, 4- head group section, 5- outer baffle block, 6- internal stop, 7- burner inner liner head
Portion, 8- casing, 9- cover plate.
Specific embodiment
For making purpose, technical scheme and advantage that this utility model is implemented clearer, below in conjunction with this utility model
Accompanying drawing in embodiment, is further described in more detail to the technical scheme in this utility model embodiment.In the accompanying drawings, ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Described reality
Applying example is a part of embodiment of this utility model, rather than whole embodiments.Embodiment below with reference to Description of Drawings
It is exemplary it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.New based on this practicality
Embodiment in type, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of this utility model protection.Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", "front", "rear",
The orientation of instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " or position relationship are based on accompanying drawing institute
The orientation showing or position relationship, are for only for ease of description this utility model and simplify description, rather than instruction or hint indication
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The restriction of novel protected scope.
As shown in figure 1, the attachment structure of a kind of engine chamber flame tube head and cylinder, comprise flame tube head 7,
Outer fixing portion, interior fixed part and cover plate 9；Cover plate 9 is fixedly connected with casing 8；
One end of outer fixing portion is fixedly connected with cover plate 9, and the other end is used for cylindrical, the outer fixation of spacing flame tube head 7
It is provided with the first gap between portion and flame tube head 7.
One end of interior fixed part is fixedly connected with cover plate 9, and the other end is used for the inner circle of spacing flame tube head 7, interior fixation
It is provided with the second gap between portion and flame tube head 7.
In the attachment structure of engine chamber flame tube head of the present utility model and cylinder, by outer fixing portion with interior
Fixed part carries out to flame tube head 7 installing positioning, and outer fixing portion is used for the cylindrical of spacing flame tube head 7, and interior fixed part is used
In the inner circle of spacing flame tube head 7, and between the side of flame tube head 7 and outer fixing portion, it is provided with the first gap, flame
It is provided with the second gap between the side of cylinder head 7 and interior fixed part, flame tube head 7 has certain activity space, solve
Because the cold and hot that line of material swollen difference of coefficients leads to greatly mismatches.
In the present embodiment, outer fixing portion comprises support ring 1, outer wall 2, head group section 4 and outer baffle block 5；The one of outer wall 2
End is connected with cover plate 9, and the other end is connected with support ring 1, and head group section 4 is connected away from one end of cover plate 9 with outer wall 2；Outer gear
Block 5 is connected with support ring 1；Head group section 4 forms the cylindrical limiting section of flame tube head 7 with outer baffle block 5.Set in the present embodiment
The advantage putting support ring 1 is, facilitates the installation of flame tube head 7 and dismounting to can achieve flame it is only necessary to dismantle support ring 1
The installation of cylinder head 7 and dismounting.
It is understood that outer baffle block 5 can also be set directly at outer wall 2 one end away from cover plate 9.For example, at one
In alternative, outer fixing portion does not comprise support ring 1, and outer baffle block 5 is directly arranged on outer wall 2 by screw, and its advantage exists
In simplifying the mounting structure of flame tube head 7, decrease number of parts, be conducive to working service.
In the present embodiment, head group section 4 and outer baffle block 5 are disposed as loop configuration.It is understood that head turns
Connect section 4 and may be arranged as segmental arc with outer baffle block 5, for example, in an alternative embodiment, head group section and outer baffle block are all provided with
It is set to multiple arc sections, and head group section is equal with the quantity of outer baffle block 5, be symmetrically arranged at flame tube head 7
Both sides, and it is provided with gap and the side of flame tube head 7 between.
In the present embodiment, the first gap width between the adjacent side of the side of flame tube head 7 and outer baffle block 5 is
0.4mm to 1.0mm.It is understood that the first gap between the adjacent side of the side of flame tube head 7 and outer baffle block 5
Value arbitrarily can set between 0.4mm to 1.0mm, for example, in an alternative embodiment, the side of flame tube head 7 with
The first gap width between the adjacent side of outer baffle block 5 is 0.6mm；In another alternative, the side of flame tube head 7
The first gap width between the adjacent side of face and outer baffle block 5 is 0.8mm.The side of described flame tube head 7 and outer baffle block 5
When the first gap width between adjacent side refers to that the side turning the stage 4 with head when the another side of flame tube head 7 is affixed
Maximal clearance, when flame tube head 7 be in outer baffle block 5 and head turn stage 4 middle when, the both sides of flame tube head 7 are respectively
Turn with outer baffle block 5 and head that the distance between stage 4 is equal, be the half of described first gap width.
In the present embodiment, interior fixed part comprises inwall 3, head group section 4, internal stop 6；One end of inwall 3 and cover plate 9
It is fixedly connected, the other end is connected with head group section 4 and internal stop 6, head group section 4 forms flame tube head 7 with internal stop 6
Inner circle limiting section.
In the present embodiment, outer wall 2 and inwall 3 are set to coaxial cylinder.
In the present embodiment, the second gap width between the adjacent side of the side of flame tube head 7 and internal stop 6 is
0.4mm to 1.0mm.It is understood that the second gap between the adjacent side of the side of flame tube head 7 and internal stop 6
Value arbitrarily can set between 0.4mm to 1.0mm.For example, in an alternative embodiment, the side of flame tube head 7 with
The second gap width between the adjacent side of internal stop 6 is 0.6mm；In another alternative, the side of flame tube head 7
The second gap width between the adjacent side of face and internal stop 6 is 0.8mm.The side of described flame tube head 7 and internal stop 6
The first gap width between adjacent side refers to when the another side of flame tube head 7 is affixed with the side of another internal stop 6
Maximal clearance, when flame tube head 7 be in two internal stops 6 middle when, the both sides of flame tube head 7 respectively with internal stop 6
The distance between equal, be the half of described second gap width.
In the present embodiment, the first gap width between the adjacent side of the side of flame tube head 7 and outer baffle block 5 and fire
The second gap width between the side of flame cylinder head 7 and the adjacent side of internal stop 6 is equal, the first gap width and the second gap width
It is 0.6mm.
It is understood that the first gap width between the adjacent side of the side of flame tube head 7 and outer baffle block 5 and fire
The second gap width leaf between the side of flame cylinder head 7 and the adjacent side of internal stop 6 can be unequal, for example, standby at one
Select in embodiment, the first gap width between the adjacent side of the side of flame tube head 7 and outer baffle block 5 is 0.6mm, burner inner liner
The second gap width between the adjacent side of the side of head 7 and internal stop 6 is 0.8mm.
In the present embodiment, support ring 1, outer wall 2, inwall 3, head group section 4, outer baffle block 5, internal stop 6 Ceramics
Based composites make.
Ceramic matric composite is the class composite with pottery for matrix and various fiber composite.In the present embodiment
In, ceramic matrix can be the high-temperature structural ceramics such as silicon nitride, carborundum.These potteries have high temperature resistant, high intensity and rigidity, phase
To lighter in weight, the excellent properties such as anticorrosive.And adopt high intensity, elastomeric fiber and matrix to be combined, pottery can also be improved
Porcelain toughness and reliability.Fiber can stop the extension of crackle, thus obtaining the fiber reinforced ceramic-base composite wood having excellent in toughness
Material.
Last it is to be noted that：Above example is only in order to illustrating the technical solution of the utility model, rather than it is limited
System.Although being described in detail to this utility model with reference to the foregoing embodiments, those of ordinary skill in the art should manage
Solution：It still can be modified to the technical scheme described in foregoing embodiments, or wherein some technical characteristics are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from each embodiment of this utility model
The spirit and scope of technical scheme.
Claims (6)
1. a kind of engine chamber flame tube head and cylinder attachment structure it is characterised in that：Comprise flame tube head
(7), outer fixing portion, interior fixed part and cover plate (9)；
Described cover plate (9) is fixedly connected with casing (8)；
One end of described outer fixing portion is fixedly connected with described cover plate (9), and the other end is used for spacing described flame tube head (7)
Cylindrical, it is provided with the first gap between described outer fixing portion and described flame tube head (7)；
One end of described interior fixed part is fixedly connected with described cover plate (9), and the other end is used for spacing described flame tube head (7)
Inner circle, is provided with the second gap between described interior fixed part and described flame tube head (7).
2. engine chamber flame tube head as claimed in claim 1 and cylinder attachment structure it is characterised in that：Described
Outer fixing portion comprises support ring (1), outer wall (2), head group section (4) and outer baffle block (5)；One end of described outer wall (2) and institute
State cover plate (9) to connect, the other end is connected with described support ring (1), described head group section (4) and described outer wall (2) are away from lid
One end of plate (9) connects；Described outer baffle block (5) is connected with described support ring (1)；Described head group section (4) and described outer gear
Block (5) forms the cylindrical limiting section of described flame tube head (7).
3. engine chamber flame tube head as claimed in claim 2 and cylinder attachment structure it is characterised in that：Described
The first gap width between the adjacent side of the side of flame tube head (7) and described outer baffle block (5) is 0.4mm to 1.0mm.
4. engine chamber flame tube head as claimed in claim 3 and cylinder attachment structure it is characterised in that：Described
Interior fixed part comprises inwall (3), head group section (4), internal stop (6)；One end of described inwall (3) is solid with described cover plate (9)
Fixed connect, the other end is connected with described head group section (4) and internal stop (6), described head group section (4) and described internal stop
(6) form the inner circle limiting section of described flame tube head (7).
5. engine chamber flame tube head as claimed in claim 4 and cylinder attachment structure it is characterised in that：Described
The second gap width between the adjacent side of the side of flame tube head (7) and described internal stop (6) is 0.4mm to 1.0mm.
6. engine chamber flame tube head as claimed in claim 5 and cylinder attachment structure it is characterised in that：Described
Support ring (1), outer wall (2), inwall (3), head group section (4), outer baffle block (5), internal stop (6) Ceramics based composites
Make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609141.8U CN206001469U (en) | 2016-06-21 | 2016-06-21 | A kind of engine chamber flame tube head and the attachment structure of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609141.8U CN206001469U (en) | 2016-06-21 | 2016-06-21 | A kind of engine chamber flame tube head and the attachment structure of cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN206001469U true CN206001469U (en) | 2017-03-08 |
Family
ID=58204590
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609141.8U Active CN206001469U (en) | 2016-06-21 | 2016-06-21 | A kind of engine chamber flame tube head and the attachment structure of cylinder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764359A (en) * | 2017-11-09 | 2019-05-17 | 中国航发商用航空发动机有限责任公司 | Head of combustion chamber assembling structure, combustion chamber and aero-engine |
| CN114459057A (en) * | 2022-01-18 | 2022-05-10 | 中国航发四川燃气涡轮研究院 | Ceramic-based flame tube connecting structure and gas turbine engine combustor |
| CN114688562A (en) * | 2022-04-14 | 2022-07-01 | 中国航发沈阳发动机研究所 | Combustion chamber with ceramic matrix composite flame tube |
| CN114822208A (en) * | 2022-04-13 | 2022-07-29 | 西北工业大学 | Annular combustion chamber model with integrated head structure and assembly method |
| CN115264536A (en) * | 2021-04-30 | 2022-11-01 | 中国航发商用航空发动机有限责任公司 | Ceramic matrix composite flame tube connecting device, aircraft engine and aircraft |
-
2016
- 2016-06-21 CN CN201620609141.8U patent/CN206001469U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764359A (en) * | 2017-11-09 | 2019-05-17 | 中国航发商用航空发动机有限责任公司 | Head of combustion chamber assembling structure, combustion chamber and aero-engine |
| CN109764359B (en) * | 2017-11-09 | 2023-08-04 | 中国航发商用航空发动机有限责任公司 | Combustion chamber head assembly structure, combustion chamber and aeroengine |
| CN115264536A (en) * | 2021-04-30 | 2022-11-01 | 中国航发商用航空发动机有限责任公司 | Ceramic matrix composite flame tube connecting device, aircraft engine and aircraft |
| CN114459057A (en) * | 2022-01-18 | 2022-05-10 | 中国航发四川燃气涡轮研究院 | Ceramic-based flame tube connecting structure and gas turbine engine combustor |
| CN114822208A (en) * | 2022-04-13 | 2022-07-29 | 西北工业大学 | Annular combustion chamber model with integrated head structure and assembly method |
| CN114822208B (en) * | 2022-04-13 | 2023-03-24 | 西北工业大学 | Annular combustion chamber model with integrated head structure and assembly method |
| CN114688562A (en) * | 2022-04-14 | 2022-07-01 | 中国航发沈阳发动机研究所 | Combustion chamber with ceramic matrix composite flame tube |
| CN114688562B (en) * | 2022-04-14 | 2023-08-22 | 中国航发沈阳发动机研究所 | Combustion chamber with ceramic matrix composite flame tube |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |