CN201751539U - Turbine guider lower edge plate cooling flow guiding structure - Google Patents
Turbine guider lower edge plate cooling flow guiding structure Download PDFInfo
- Publication number
- CN201751539U CN201751539U CN2009203504048U CN200920350404U CN201751539U CN 201751539 U CN201751539 U CN 201751539U CN 2009203504048 U CN2009203504048 U CN 2009203504048U CN 200920350404 U CN200920350404 U CN 200920350404U CN 201751539 U CN201751539 U CN 201751539U
- Authority
- CN
- China
- Prior art keywords
- guider
- lower edge
- collector box
- edge plate
- inframarginal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to an engine blocking turbine outer ring connecting structure, in particular to a turbine guider lower edge plate cooling flow guiding structure comprising a turbine guider (1) and a collector box (2), wherein the collector box (2) is installed on a turbine guider mounting edge, and a cooling cavity is formed between the collector box (2) and a guider lower edge plate. The front end of the collector box (2) is in lap joint with a convex plate of the guider lower edge plate, and the convex plate is provided with at least one vent groove (4). The guider mounting edge is provided with a vent hole for gas exhausting. In the turbine guider lower edge plate cooling flow guiding structure, the cooling cavity is formed by arranging the collector box on the turbine guider lower edge plate, so that cold air is collected and buffered, thus reinforcing the heat exchanging effect of the cold air and the edge plate, and improving the cooling effect of the guider lower edge plate. Simultaneously, the vent groove is arranged on the convex plate of the guider lower edge plate so as to distribute cold air flow, thus being capable of improving the sealing effect of an air flow channel.
Description
Technical field
The utility model relates to motor blocking type turbine outer shroud linkage structure.
Background technique
Guider is a main stator spare in the turbine sprue, because temperature height, temperature field are inhomogeneous, thermal stretching and thermal distortion are very outstanding.Therefore to the basic demand of the seal structure design of stator spare: should guarantee reliably to obturage, avoid again causing distortion, wearing and tearing even the damage of parts because of thermal expansion causes excessive contact stress.In order to reduce the circumferential and radial clearance gas leakage between inframarginal on the guide vane, between the fan-shaped section of each blade or group blade, all designed the chip architecture of simply obturaging.
Usually according to the different sheet of obturaging of curtain plate shape different designs in the guide vane, but general nozzle ring inframarginal cooling flow guide structure is because cavity volume is big, cold air is not had the gas collection pooling feature, and therefore have following defective: envelope is pressed weak effect, and the heat exchange effect between cold air and the listrium is relatively poor.
The model utility content
The purpose of this utility model: in order to solve the problem that prior art nozzle ring inframarginal cooling flow guide structure cold air cavity volume is big, the heat exchange effect is not good enough, the utility model provides the nozzle ring inframarginal cooling that a kind of cold air cavity volume is little, the heat exchange effect is good flow guide structure.
The technical solution of the utility model: nozzle ring inframarginal cooling flow guide structure, it comprises nozzle ring and collector box, wherein, described collector box is installed in nozzle ring and installs on the limit, and and the guider inframarginal between form cooling chamber.
The boss overlap joint of the described front end of stating collector box and guider inframarginal, and have at least one vent slot on the boss.
Described guider is installed the limit and is had vent.
Described collector box is installed in nozzle ring by the mode that is spirally connected or weld the limit is installed.
The beneficial effects of the utility model: the utility model nozzle ring inframarginal cooling flow guide structure forms cooling chamber by at the nozzle ring inframarginal collector box being set, cold air is assembled buffer memory, thereby can strengthen the heat exchange effect of cold air and listrium, improve the cooling effect of guider inframarginal.Simultaneously on the boss of guider inframarginal, open air drain, cold air flow is distributed, thereby can improve the effect of obturaging of flow channel.
Description of drawings
Fig. 1 is the structural representation of the utility model nozzle ring inframarginal cooling flow guide structure one better embodiment;
Fig. 2 is the A-A sectional view of Fig. 1;
The 1-nozzle ring; The 2-collector box; The 3-bolt; The 4-vent slot.
Embodiment
The utility model is described in further detail below by embodiment:
See also Fig. 1, it is the structural representation of the utility model nozzle ring inframarginal cooling flow guide structure one better embodiment.Described nozzle ring inframarginal cooling flow guide structure comprises nozzle ring 1 and collector box 2.Wherein, described collector box 2 and nozzle ring are installed the limit and are connected by bolt 3, and and the guider inframarginal between formation one cooling chamber.
See also Fig. 2, it is the A-A sectional view of Fig. 1.Among the figure, the boss of the front end of described collector box 2 and guider inframarginal overlap joint, and have circumferential some vent slots 4 on the boss.Also have vent on the installation limit of guider simultaneously, be used for the discharge of cold air.
During work, cooled gas is entered in the cooling chamber that collector box 2 forms by the blade inner chamber of nozzle ring, because the cooling chamber between collector box 2 and the nozzle ring inframarginal is less, cold air back recently has individual cold air storage pooling feature in cooling chamber, effectively reduced the pressure loss of cavity volume, thereby can improve the heat exchange effect between cooled gas and the inframarginal, improve the cooling effect of inframarginal.
In addition, cold air passes through can form shock effect when the boss vent slot 4 of guider inframarginal and collector box 2 overlap joints, thereby effectively stop the blending of combustion gas, and tried checking, even under the less situation of pressure reduction, also can reach the effect of obturaging preferably.
Therefore the utility model nozzle ring inframarginal cooling flow guide structure is concentrated buffering by the constraint cold air of collector box, thereby can be increased the pressure of cooling chamber by the design cooling chamber in cooling chamber, improves the heat exchange effect between cooled gas and the inframarginal.In addition, because the design of vent slot makes cold air have the one-way sealing effect when discharging, thereby can effectively avoid the backflow of gas.
Claims (4)
1. nozzle ring inframarginal cooling flow guide structure, it is characterized in that: comprise nozzle ring (1) and collector box (2), wherein, described collector box (2) is installed on the nozzle ring installation limit, and and the guider inframarginal between form cooling chamber.
2. nozzle ring inframarginal according to claim 1 cooling flow guide structure is characterized in that: the described front end of stating collector box (2) overlaps with the boss of guider inframarginal, and has at least one vent slot (4) on the boss.
3. according to claim 1 or 2 each described nozzle ring inframarginal cooling flow guide structures, it is characterized in that: described guider is installed the limit and is had vent.
4. nozzle ring inframarginal cooling flow guide structure according to claim 3, it is characterized in that: described collector box (2) is installed in nozzle ring by the mode that is spirally connected or weld and installs on the limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203504048U CN201751539U (en) | 2009-12-28 | 2009-12-28 | Turbine guider lower edge plate cooling flow guiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203504048U CN201751539U (en) | 2009-12-28 | 2009-12-28 | Turbine guider lower edge plate cooling flow guiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751539U true CN201751539U (en) | 2011-02-23 |
Family
ID=43601947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203504048U Expired - Lifetime CN201751539U (en) | 2009-12-28 | 2009-12-28 | Turbine guider lower edge plate cooling flow guiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751539U (en) |
-
2009
- 2009-12-28 CN CN2009203504048U patent/CN201751539U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110223 |
|
| CX01 | Expiry of patent term |