CN206668329U - The turbine blade cooling structure of gas turbine - Google Patents
The turbine blade cooling structure of gas turbine Download PDFInfo
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- CN206668329U CN206668329U CN201720266007.7U CN201720266007U CN206668329U CN 206668329 U CN206668329 U CN 206668329U CN 201720266007 U CN201720266007 U CN 201720266007U CN 206668329 U CN206668329 U CN 206668329U
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- cooling
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- gas turbine
- turbine blade
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Abstract
The utility model proposes a kind of turbine blade cooling structure of gas turbine, including:Cooling duct, the cross-sectional configuration of the cooling duct is into circle;At least one cooling rib, the cooling rib are located in the side wall of the cooling duct and arranged along the axial screw of the cooling duct.It is simple in construction, heat exchange efficiency can be improved according to the turbine blade cooling structure of gas turbine of the present utility model.
Description
Technical field
It the utility model is related to a kind of turbine blade cooling structure of gas turbine.
Background technology
The turbo blade long-term work of gas turbine under high temperature and high pressure environment, temperature be up to 1300 degree and more than, still
The heatproof of blade in itself is probably at 900 degree or so, so needing to use compressed air from the inside of blade and surface to carry out
Cooling.But the increase of cooling air usage amount can reduce the operating efficiency of complete machine.
In correlation technique, the cooling fin perpendicular to compressed air flow direction is often set on the cooling duct wall of turbo blade
To increase the heat exchange area of cooling duct, increase cooling effect.But there is heat exchange blind area (i.e. in the lee face in cooling fin
The region that cooling fin connects with cooling duct), influence heat transfer effect.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.
Therefore, a purpose of the present utility model is to propose a kind of combustion gas simple in construction, can improving heat exchange efficiency
The turbine blade cooling structure of turbine.
According to the turbine blade cooling structure of gas turbine of the present utility model, including:
Cooling duct, the cross-sectional configuration of the cooling duct is into circle;
At least one cooling rib, the cooling rib are located in the side wall of the cooling duct and along the cooling duct
Axial screw arrangement.
Advantageously, it is described cooling rib be two and two it is described cooling ribs along the cooling duct axially uniformly between
Every arrangement.
Advantageously, the pitch of the cooling rib is 5mm~50mm.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Fig. 1 is the schematic diagram according to the turbine blade cooling structure of gas turbine of the present utility model;
Fig. 2 is the plane outspread drawing along the sectional view of the line A-A in Fig. 1.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Below with reference to the accompanying drawings it is described in detail the turbine blade cooling structure according to gas turbine of the present utility model.
As depicted in figs. 1 and 2, according to the turbine blade cooling structure of gas turbine of the present utility model, including:Cooling is logical
Road 100, at least one cooling rib 200.
Specifically, the cross-sectional configuration of cooling duct 100 is into circle.Cooling rib 200 is located at the side wall of cooling duct 100
Axial direction (i.e. the flow direction of cooling medium, the hollow arrow in Fig. 2 represent the flow direction of cooling medium) spiral upper and along cooling duct
Arrangement.Advantageously, as shown in figure 1, cooling rib 200 can be axle of the two and two cooling ribs 200 along cooling duct 100
Arranged to uniform intervals.Further, the pitch for cooling down rib 200 is 5mm~50mm.
According to the turbine blade cooling structure of gas turbine of the present utility model, it is provided with the side wall of cooling duct along cold
But the cooling rib of the axial screw arrangement of passage, does not produce the lee face heat exchange blind zone problem of cooling rib, and extends spirally
Cooling rib can guide cooling medium cooling duct inside spin rotate, heat exchange efficiency can be improved.Through measuring and calculating, with current
The heat exchange structure of application is compared, and enhancing heat exchange efficiency according to the turbine blade cooling structure of gas turbine of the present utility model reaches
20%.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or more, remove
It is non-separately to have clearly specific limit.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be
Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, is replaced and modification, each fall within the scope of protection of the utility model.
Claims (3)
- A kind of 1. turbine blade cooling structure of gas turbine, it is characterised in that including:Cooling duct, the cross-sectional configuration of the cooling duct is into circle;At least one cooling rib, the cooling rib are located in the side wall of the cooling duct and along the axle of the cooling duct To screw arrangement.
- 2. the turbine blade cooling structure of gas turbine according to claim 1, it is characterised in that it is described cooling rib be Axial uniform intervals arrangement of the two and two cooling ribs along the cooling duct.
- 3. the turbine blade cooling structure of gas turbine according to claim 1 or 2, it is characterised in that the cooling ribs The pitch of bar is 5mm~50mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201720266007.7U CN206668329U (en) | 2017-03-17 | 2017-03-17 | The turbine blade cooling structure of gas turbine |
Applications Claiming Priority (1)
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CN201720266007.7U CN206668329U (en) | 2017-03-17 | 2017-03-17 | The turbine blade cooling structure of gas turbine |
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CN206668329U true CN206668329U (en) | 2017-11-24 |
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CN201720266007.7U Active CN206668329U (en) | 2017-03-17 | 2017-03-17 | The turbine blade cooling structure of gas turbine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113107608A (en) * | 2021-04-13 | 2021-07-13 | 西北工业大学 | A vortex screw hole cooling structure and turbine blade for turbine blade trailing edge |
-
2017
- 2017-03-17 CN CN201720266007.7U patent/CN206668329U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113107608A (en) * | 2021-04-13 | 2021-07-13 | 西北工业大学 | A vortex screw hole cooling structure and turbine blade for turbine blade trailing edge |
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