CN205805730U - A kind of gas turbine bleed baffle plate - Google Patents
A kind of gas turbine bleed baffle plate Download PDFInfo
- Publication number
- CN205805730U CN205805730U CN201620609212.4U CN201620609212U CN205805730U CN 205805730 U CN205805730 U CN 205805730U CN 201620609212 U CN201620609212 U CN 201620609212U CN 205805730 U CN205805730 U CN 205805730U
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- Prior art keywords
- bleed
- baffle plate
- gas turbine
- hole
- connecting portion
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Abstract
The utility model discloses a kind of gas turbine bleed baffle plate, relate to gas turbine technology field.Described gas turbine bleed baffle plate, being arranged between the sprue (7) of the cylinder (1) of gas turbine and internal bleed hole (2), described bleed baffle plate (5) comprises connecting portion (51), bending part (52) and bleed portion (53)；Described connecting portion (51) is fixing with cylinder (1) to be connected；Described bending part (52) one end connects described connecting portion (51), and the other end connects described bleed portion (53)；Being provided with baffle plate bleed hole (531) on described bleed portion (53), the air-flow that gas turbine is drawn from sprue (7) enters internal bleed hole (2) afterwards via described baffle plate bleed hole (531).The utility model has the advantage of: by using bleed baffle plate to adjust the distribution of air-flow, it is achieved that when inside bleed pore size distribution is uneven, the requirement of cylinder axially uniformly bleed, it is ensured that in gas turbine, primary air flow field is stable and uniform.
Description
Technical field
This utility model relates to gas turbine technology field, is specifically related to a kind of gas turbine bleed baffle plate.
Background technology
Each position of gas turbine cylinder typically can be provided with many bleed holes, for cooling down high-temperature part or balance
Pressure etc..Owing to being limited by the condition such as space and structure, often when offering bleed hole, circumference can not be uniformly distributed, and even exists
Can only there be a hole some positions for bleed.The result so brought is, the internal main air flow field distribution of gas turbine is uneven
Even, temperature contrast is big, thus causes reliability and the service life reduction of gas turbine.
Utility model content
The purpose of this utility model is to provide a kind of gas turbine bleed baffle plate, to solve or at least to alleviate in background technology
The problem at least one existing place.
The technical solution of the utility model is: provides a kind of gas turbine bleed baffle plate, is arranged on the cylinder of gas turbine
Sprue and internal bleed hole between, described bleed baffle plate comprises connecting portion, bending part and bleed portion；Described connecting portion and cylinder
Body is fixing to be connected；Described bending part one end connects described connecting portion, and the other end connects described bleed portion；Arrange in described bleed portion
Having baffle plate bleed hole, the air-flow that gas turbine is drawn from sprue is via entering internal bleed hole behind described baffle plate bleed hole.
Preferably, described connecting portion, bending part and bleed portion are one-body molded.
Preferably, described bleed baffle plate is set to loop configuration, and described bleed portion is circumferentially provided with multiple baffle plate bleed
Hole.
Preferably, the baffle plate bleed hole provided circumferentially about of described bleed baffle plate is symmetrical, on described bleed baffle plate
With a fixed point as starting point, symmetrical to the both direction of circumference, to be circumferentially separated by the point of 180 degree with described starting point as end
Point, the line of described Origin And Destination is the line of symmetry in multiple described baffle plate bleed hole, and at the circumferencial direction of bleed baffle plate, from
Described starting point distance between two adjacent screen bleed holes in described terminal direction is gradually reduced.
Preferably, the medial wall of described cylinder being provided with raised ribs, one end of described bleed baffle plate is by described connection
Portion is connected with the sidewall of described sprue, and the other end is fitted by the side of the side in described bleed portion with described raised ribs.
Preferably, described connecting portion be arranged in parallel with described bleed portion, and the plane of described connecting portion and bending part is formed
Angle is more than 90 degree.
Preferably, described in cause baffle plate to install on described cylinder after, described starting point is near the position in described internal bleed hole
Put.
The utility model has the advantage of: this utility model adjusts the distribution of air-flow by using bleed baffle plate, it is achieved
When internal bleed pore size distribution is uneven, the requirement of cylinder axially uniformly bleed, it is ensured that primary air in gas turbine
Stablizing and uniform of flow field.And straight bleed baffle plate poor rigidity, by being deformed or occur chatter during gas shock, this
The bleed baffle plate of utility model uses bending structure, strengthens the rigidity of baffle plate, its simple in construction, installation and removal simplicity, peace
It is complete reliable, it is easy to accomplish.
Accompanying drawing explanation
Fig. 1 is the gas turbine bleed baffle plate scheme of installation of this utility model one embodiment.
Fig. 2 is the schematic diagram of the bleed baffle plate of this utility model one embodiment.
Wherein, 1-cylinder, the internal bleed hole of 2-, 3-raised ribs, 5-bleed baffle plate, 51-connecting portion, 52-bending part, 53-
Bleed portion, 531-baffle plate bleed hole, 7-sprue.
Detailed description of the invention
Clearer, below in conjunction with this utility model for the purpose making this utility model implement, technical scheme and advantage
Accompanying drawing in embodiment, is further described in more detail the technical scheme in this utility model embodiment.In the accompanying drawings, ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Described reality
Executing example is a part of embodiment of this utility model rather than whole embodiments.The embodiment described below with reference to accompanying drawing
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 not making creative work premise
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 ", " longitudinally ", " laterally ", "front", "rear",
The orientation of the instruction such as "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be 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 and Figure 2, a kind of gas turbine bleed baffle plate, it is arranged on the sprue 7 of cylinder 1 of gas turbine with interior
Between bleed hole, portion 2, bleed baffle plate 5 comprises connecting portion 51, bending part 52 and bleed portion 53；Connecting portion 51 is fixing with cylinder 1 even
Connect；Bending part 52 one end connects described connecting portion 51, and the other end connects described bleed portion 53；It is provided with baffle plate in bleed portion 53 to draw
Pore 531, the air-flow that gas turbine is drawn from sprue 7 is via entering internal bleed hole 2 behind baffle plate bleed hole 531.
This utility model adjusts the distribution of air-flow by using bleed baffle plate 5, it is achieved that be distributed not in internal bleed hole 2
Under equal state, the requirement of cylinder axially uniformly bleed, it is ensured that in gas turbine, primary air flow field is stable and uniform.And put down
Straight bleed baffle plate poor rigidity, by being deformed or occur chatter, bleed baffle plate 5 of the present utility model to adopt during gas shock
With bending structure, strengthen the rigidity of baffle plate, its simple in construction, installation and removal simplicity, safe and reliable, it is easy to accomplish.
In the present embodiment, connecting portion 51, bending part 52 and bleed portion 53 are one-body molded.Panel beating bending shape can be used
Become, have an advantage in that, process simple and convenient, the rigidity of bleed baffle plate 5 can be strengthened.In the present embodiment, connecting portion 51, bending
Portion 52 and bleed portion 53 are loop configuration, are collectively forming annular bleed baffle plate 5.
It is understood that connecting portion 51, bending part 52 and bleed portion 53 can also individually process and tight by securing member
It is solidly connected and is integrated.It addition, connecting portion 51, bending part 52 and bleed portion 53 are it can also be provided that multiple segmental arc, two adjacent
Arranging certain gap between segmental arc, described gap enters internal bleed for the air-flow that gas turbine is drawn from sprue 7
Hole 2, has an advantage in that, described gap width can regulate, thus regulates ventilation flow rate.It is more conducive to main air flow in gas turbine
Stablizing and uniform of field.
In the present embodiment, bleed baffle plate 5 is set to loop configuration, and bleed portion 53 is circumferentially provided with multiple baffle plate bleed
Hole 531, baffle plate bleed hole 531 is set to cylindrical hole, has an advantage in that, processes simple and convenient.It is understood that baffle plate
Bleed hole can also set according to practical situation.Such as, in an alternative embodiment, to be set to circular arc long in baffle plate bleed hole
Hole, the arc center of circle of described circular arc elongated hole overlaps with the center of circle of bleed baffle plate 5.Have an advantage in that, long by controlling circular arc
The length in hole, can with the gas flow in controllable register bleed hole, contribute to realizing the stable of primary air flow field in gas turbine and
Uniformly.
As in figure 2 it is shown, in the present embodiment, the baffle plate bleed hole 531 provided circumferentially about of bleed baffle plate 5 is symmetrical,
With a fixed point as starting point on bleed baffle plate 5, symmetrical to the both direction of circumference, to be circumferentially separated by with described starting point
The point of 180 degree is terminal, and the line of described Origin And Destination is the line of symmetry in multiple described baffle plate bleed hole 531, and in bleed
The circumferencial direction of baffle plate 5, gradually subtracts from described starting point distance between two adjacent screen bleed holes in described terminal direction
Little.Have an advantage in that, during for being provided only with 1 internal bleed hole 2 on cylinder 1, bleed baffle plate 5 is distributed baffle plate bleed hole
531 less one end are arranged near described internal bleed hole 2, and one end that bleed baffle plate 5 is distributed baffle plate bleed hole 531 more is remote
From described bleed baffle plate 5, the stable of primary air flow field in gas turbine and uniformly so can be realized.
In the present embodiment, the medial wall of cylinder 1 being provided with raised ribs 3, connecting portion 51 is passed through in one end of bleed baffle plate 5
Being connected with the sidewall of sprue 7, the other end is fitted by the side of the side in bleed portion 53 with raised ribs 3.Have an advantage in that, cylinder
Bleed baffle plate 5 is played the effect that auxiliary supports by the raised ribs 3 on the inwall of body 1.Bleed baffle plate 5 uses bending structure, bending
Portion 52 is in the centre position of bleed baffle plate 5, and owing to using bending structure, the fixing hole of bleed baffle plate 5 and bleed hole be not at one
In plane.Connecting bolt, also below the surface in bleed portion 53, is conducive to reducing the resistance of air-flow, thus promotes the circulation of air-flow.
In the present embodiment, connecting portion 51 be arranged in parallel with bleed portion 53, and connecting portion 51 is formed with the plane of bending part 52
Angle more than 90 degree.Having an advantage in that, obtuse-angulate two planes of shape form a changeover portion to air-flow, can reduce air-flow
The resistance of circulation, the beneficially flowing of air-flow.
In the present embodiment, after causing baffle plate 5 to install on cylinder 1, described starting point is near the position in described internal bleed hole 2
Put.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than it is limited
System.Although being described in detail this utility model with reference to previous embodiment, those of ordinary skill in the art should manage
Solve: the technical scheme described in foregoing embodiments still can be modified by it, or enters wherein portion of techniques feature
Row equivalent；And these amendments 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 (7)
1. a gas turbine bleed baffle plate, is arranged on the sprue (7) of the cylinder (1) of gas turbine and internal bleed hole (2)
Between, it is characterised in that: described bleed baffle plate (5) comprises connecting portion (51), bending part (52) and bleed portion (53)；
Described connecting portion (51) is fixing with cylinder (1) to be connected；
Described bending part (52) one end connects described connecting portion (51), and the other end connects described bleed portion (53)；
Be provided with baffle plate bleed hole (531) on described bleed portion (53), the air-flow that gas turbine is drawn from sprue (7) via
Described baffle plate bleed hole (531) enters internal bleed hole (2) afterwards.
2. gas turbine bleed baffle plate as claimed in claim 1, it is characterised in that: described connecting portion (51), bending part (52)
And bleed portion (53) are one-body molded.
3. gas turbine bleed baffle plate as claimed in claim 2, it is characterised in that: described bleed baffle plate (5) is set to annular
Structure, described bleed portion (53) be circumferentially provided with multiple baffle plate bleed hole.
4. gas turbine bleed baffle plate as claimed in claim 3, it is characterised in that: set on the circumference of described bleed baffle plate (5)
The baffle plate bleed hole put is symmetrical, with a fixed point as starting point on described bleed baffle plate, divides to the both direction symmetry of circumference
Cloth, to be circumferentially separated by the point of 180 degree with described starting point as terminal, the line of described Origin And Destination is multiple described baffle plates
The line of symmetry in bleed hole, and at the circumferencial direction of bleed baffle plate, from described starting point to two adjacent screen in described terminal direction
Distance between bleed hole is gradually reduced.
5. gas turbine bleed baffle plate as claimed in claim 4, it is characterised in that: arrange on the medial wall of described cylinder (1)
Having raised ribs (3), one end of described bleed baffle plate (5) is connected with the sidewall of described sprue (7) by described connecting portion (51),
The other end is fitted by the side of the side of described bleed portion (53) with described raised ribs (3).
6. gas turbine bleed baffle plate as claimed in claim 4, it is characterised in that: described connecting portion (51) and described bleed portion
(53) be arrangeding in parallel, described connecting portion (51) is more than 90 degree with the angle of the plane formation of bending part (52).
7. gas turbine bleed baffle plate as claimed in claim 4, it is characterised in that: described bleed baffle plate (5) is at described cylinder
(1), after upper installation, described starting point is near the position of described internal bleed hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609212.4U CN205805730U (en) | 2016-06-21 | 2016-06-21 | A kind of gas turbine bleed baffle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609212.4U CN205805730U (en) | 2016-06-21 | 2016-06-21 | A kind of gas turbine bleed baffle plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805730U true CN205805730U (en) | 2016-12-14 |
Family
ID=57506379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609212.4U Active CN205805730U (en) | 2016-06-21 | 2016-06-21 | A kind of gas turbine bleed baffle plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974032A (en) * | 2019-03-21 | 2019-07-05 | 中国航发湖南动力机械研究所 | A kind of bleed structure of auxiliary power unit |
| CN114151194A (en) * | 2022-02-10 | 2022-03-08 | 成都中科翼能科技有限公司 | Double-layer force transmission device of gas turbine |
-
2016
- 2016-06-21 CN CN201620609212.4U patent/CN205805730U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974032A (en) * | 2019-03-21 | 2019-07-05 | 中国航发湖南动力机械研究所 | A kind of bleed structure of auxiliary power unit |
| CN114151194A (en) * | 2022-02-10 | 2022-03-08 | 成都中科翼能科技有限公司 | Double-layer force transmission device of gas turbine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |