CN109695481A - A kind of air deflector for gas turbine exhaust gas cylinder - Google Patents
A kind of air deflector for gas turbine exhaust gas cylinder Download PDFInfo
- Publication number
- CN109695481A CN109695481A CN201811426525.6A CN201811426525A CN109695481A CN 109695481 A CN109695481 A CN 109695481A CN 201811426525 A CN201811426525 A CN 201811426525A CN 109695481 A CN109695481 A CN 109695481A
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- CN
- China
- Prior art keywords
- semi
- circular shell
- ribs
- preset direction
- air deflector
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to steam turbine technology fields, more particularly to a kind of air deflector for gas turbine exhaust gas cylinder.It includes the first semi-circular shell and the second semi-circular shell of separable setting；Pass through the separable cooperation of connecting flange between first semi-circular shell and the second semi-circular shell；First semi-circular shell and the second semi-circular shell, which are matched, is encircled into diversion space；Diversion space cross-sectional area on the first preset direction is gradually reduced；The flanged plate for being equipped with reinforcing rib along the first preset direction in first semi-circular inner walls and being arranged along second preset direction vertical with the first preset direction；Ribs is equipped with along the second preset direction in second semi-circular inner walls.One of the present embodiment is used for the air deflector of gas turbine exhaust gas cylinder, by Optimal Structure Designing, increases the flanged plate for reducing air-flow vortex and optimization airflow streamline, keep pitot loss in exhaust casing small, guarantee the aeroperformance of exhaust casing, furthermore it is additionally provided with ribs, ensure that integral rigidity.
Description
Technical field
The present invention relates to steam turbine technology fields, more particularly to a kind of air deflector for gas turbine exhaust gas cylinder.
Background technique
Steam turbine is a kind of rotary steam power device, and high temperature and high pressure steam, which passes through fixed nozzle, becomes the air-flow accelerated
After be ejected on blade, make the rotor rotation equipped with blade row, while external work done.Steam turbine is the master of modern thermal power plant
Want equipment.In discharge cylinder of steam turbine internal flow, the main reason for vorticla motion is exhaust casing internal pressure loss.Exhaust casing
Aeroperformance is by various shadows such as exhaust volute, the geometry of diffuser, the arrangement of reinforcer and incoming flow conditions
It rings.Whether the shape of diffuser pipe is excellent to the mobility of entire exhaust casing most important, directly affects the aeroperformance of exhaust casing.
In the prior art, the exhaust casing diffusion ability for being not provided with air deflector is low, and input static pressure is bigger than exit static pressure instead, row
Steam flow vortex is very serious in cylinder, and exit streamline distribution is extremely uneven, causes pitot loss in exhaust casing larger indirectly.
Summary of the invention
It is an object of the invention to: in the prior art not deficiency, provide a kind of for gas turbine exhaust gas cylinder
Air deflector increase the flanged plate for reducing air-flow vortex and optimization airflow streamline, make exhaust casing by Optimal Structure Designing
Interior pitot loss is small, guarantees the aeroperformance of exhaust casing.
The present invention specifically uses following technical scheme to achieve the goals above:
A kind of air deflector for gas turbine exhaust gas cylinder comprising the first semi-circular shell of separable setting and the second half
Toroidal shell；The first semi-circular shell and the second semi-circular shell both ends are respectively equipped with connecting flange；Described first
Pass through the separable cooperation of connecting flange between semi-circular shell and the second semi-circular shell；The first semi-circular shell
Match with the second semi-circular shell and is encircled into diversion space；Cross-sectional area is gradually on the first preset direction for the diversion space
It reduces；Reinforcing rib is equipped with along the first preset direction in the first semi-circular inner walls and is hung down along with first preset direction
The flanged plate of straight the second preset direction setting；It is equipped with and adds along second preset direction in the second semi-circular inner walls
Strong rib.
Further, the flanged plate is fixedly connected with the first semi-circular inner walls；The flange board ends point
It is not connect with connecting flange described in both ends.
Further, the ribs includes the first ribs and the second ribs；First ribs and described
The connection with the second semi-circular shell two sides respectively of two ribs；Lifting is additionally provided in the second semi-circular inner walls
Block；The hoist block is set between first ribs and second ribs.
Further, the adjacent connecting flange passes through the separable cooperation of bolt.
Further, the first semi-circular shell and the second semi-circular shell are lower than preset direction updip described
Rake angle is 8 °~10 °.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
One of the present embodiment is used for the air deflector of gas turbine exhaust gas cylinder, by Optimal Structure Designing, increases and subtracts
The flanged plate of few air-flow vortex and optimization airflow streamline, keeps pitot loss in exhaust casing small, guarantees the aeroperformance of exhaust casing, this
Outer its is additionally provided with ribs, ensure that integral rigidity.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram in the embodiment of the present invention 1 for the air deflector of gas turbine exhaust gas cylinder；
Fig. 2 is the schematic diagram of the section structure in the embodiment of the present invention 1 at connecting flange.
In the figure, it is marked as 11- the first semi-circular shell；12- the second semi-circular shell；13- connecting flange；21- reinforcing rib；
22- flanged plate；The first ribs of 23-；The second ribs of 24-；25- hoist block；26- bolt.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of embodiment of the present invention, it should be noted that the orientation of the instructions such as term "inner", "outside", "upper"
Or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Embodiment 1
It is a kind of air deflector for gas turbine exhaust gas cylinder provided in this embodiment with reference to Fig. 1, in figure, it is excellent by structure
Change design, increase the flanged plate 22 for reducing air-flow vortex and optimizing streamline, be that pitot loss is small in exhaust casing, guarantees exhaust casing
Aeroperformance.
Specifically, the air deflector for gas turbine exhaust gas cylinder includes the first semi-circular shell 11 and second of separable setting
Semi-circular shell 12；With reference to Fig. 2, the first semi-circular shell 11 and 12 both ends of the second semi-circular shell are respectively equipped with connection method
Orchid 13；By the separable cooperation of connecting flange 13 between first semi-circular shell 11 and the second semi-circular shell 12, need
It is bright, in actual use, pressure need to be used when group pretends to be ignorant and forces and pay last month the first semi-circular flange and the second semi-circular flange
Crab bolt 26 fastens, and welding deformation is prevented when for assembling with technique lacing wire is cut in the scribing line of split appropriate location.
The first semi-circular shell 11 and the second semi-circular shell 12 after assembly, which are matched, is encircled into diversion space；It needs to pad when assembly
Flat shell need to be cut off if there is the technique lacing wire of interference.Diversion space cross-sectional area on the first preset direction is gradually reduced；First
Reinforcing rib 21 is equipped with along the first preset direction on 11 inner wall of semi-circular shell and is preset along vertical with the first preset direction second
The flanged plate 22 of direction setting；Optimization airflow by this way reduces air-flow vortex, furthermore on 12 inner wall of the second semi-circular shell
It is equipped with ribs along the second preset direction, to guarantee integral rigidity.
More specifically, in the present embodiment, flanged plate 22 is fixedly connected with 11 inner wall of the first semi-circular shell；Flanged plate 22
Both ends are connect with both ends connecting flange 13 respectively, are further reduced the generation of air-flow vortex.
It is mounted in exhaust casing for the ease of entire air deflector, in the present embodiment, ribs includes the first ribs 23
With the second ribs 24；First ribs 23 and the connection with 12 two sides of the second semi-circular shell respectively of the second ribs 24；The
Hoist block 25 is additionally provided on two semi-circular shells, 12 inner wall；Hoist block 25 be set to the first ribs 23 and the second ribs 24 it
Between.While can be lifted fastly using lifting, guarantee its integral rigidity.
Preferably, in the present embodiment, adjacent connecting flange 13 passes through the separable cooperation of bolt 26.
Through overtesting, in the present embodiment, select the first semi-circular shell 11 and the second semi-circular shell 12 lower than pre-
Set direction inclination angle is 8 °~10 °.Specifically, the first semi-circular shell 11 and the second semi-circular shell 12 are lower than default
Direction inclination angle is 9 °.
One of the present embodiment is used for the air deflector of gas turbine exhaust gas cylinder, by Optimal Structure Designing, increases and subtracts
The flanged plate 22 of few air-flow vortex and optimization airflow streamline, keeps pitot loss in exhaust casing small, guarantees the aeroperformance of exhaust casing,
Furthermore it is additionally provided with ribs, ensure that integral rigidity.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of air deflector for gas turbine exhaust gas cylinder, it is characterised in that: the air deflector packet for gas turbine exhaust gas cylinder
Include the first semi-circular shell (11) and the second semi-circular shell (12) of separable setting；The first semi-circular shell (11) and
Second semi-circular shell (12) both ends are respectively equipped with connecting flange (13)；The first semi-circular shell (11) and described
Pass through connecting flange (13) separable cooperation between two semi-circular shells (12)；The first semi-circular shell (11) and described
Second semi-circular shell (12), which is matched, is encircled into diversion space；Diversion space cross-sectional area on the first preset direction gradually contracts
It is small；Reinforcing rib (21) are equipped with along the first preset direction on first semi-circular shell (11) inner wall and are preset along with described first
The flanged plate (22) of vertical the second preset direction setting in direction；Along described second on second semi-circular shell (12) inner wall
Preset direction is equipped with ribs.
2. a kind of air deflector for gas turbine exhaust gas cylinder according to claim 1, it is characterised in that: the flanged plate
(22) it is fixedly connected with the first semi-circular shell (11) inner wall；Flanged plate (22) both ends are connected with described in both ends respectively
Flange (13) connection.
3. a kind of air deflector for gas turbine exhaust gas cylinder according to claim 1, it is characterised in that: the ribs packet
Include the first ribs (23) and the second ribs (24)；First ribs (23) and second ribs (24) respectively with
The connection of second semi-circular shell (12) two sides；Hoist block is additionally provided on second semi-circular shell (12) inner wall
(25)；The hoist block (25) is set between first ribs (23) and second ribs (24).
4. a kind of air deflector for gas turbine exhaust gas cylinder according to claim 1, it is characterised in that: the adjacent connection
Flange (13) passes through bolt (26) separable cooperation.
5. a kind of air deflector for gas turbine exhaust gas cylinder according to claim 1, it is characterised in that: first semi-ring
Shape shell (11) and the second semi-circular shell (12) it is described lower than preset direction inclination angle be 8 °~10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811426525.6A CN109695481A (en) | 2018-11-27 | 2018-11-27 | A kind of air deflector for gas turbine exhaust gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811426525.6A CN109695481A (en) | 2018-11-27 | 2018-11-27 | A kind of air deflector for gas turbine exhaust gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109695481A true CN109695481A (en) | 2019-04-30 |
Family
ID=66230206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811426525.6A Pending CN109695481A (en) | 2018-11-27 | 2018-11-27 | A kind of air deflector for gas turbine exhaust gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360630A (en) * | 2020-10-23 | 2021-02-12 | 中船黄埔文冲船舶有限公司 | Hovercraft gas turbine hydraulic exhaust pipe cover and machining method thereof |
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|---|---|---|---|---|
| DE102009007999A1 (en) * | 2009-02-07 | 2010-08-12 | Hobis Ag | Guide ring element for turbines and method for its production |
| CN202273713U (en) * | 2011-08-23 | 2012-06-13 | 常州环能涡轮动力有限公司 | Nozzle assembly of variable-cross-section superchargers |
| CN202392831U (en) * | 2011-10-25 | 2012-08-22 | 南京航空航天大学 | Miniature short-ring direct-current combustor with stream guide device |
| CN202483637U (en) * | 2012-03-03 | 2012-10-10 | 山东坚龙特种不锈钢股份有限公司 | Novel turbine diaphragm |
| CN105065068A (en) * | 2015-08-13 | 2015-11-18 | 德阳东汽电站机械制造有限公司 | Deflector ring for exhaust hood of turbine |
| CN105179030A (en) * | 2015-08-28 | 2015-12-23 | 杭州汽轮机股份有限公司 | Upward exhaust type welded turbine condensing exhaust hood |
| CN205297659U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Low pressure inner casing second |
| CN206223005U (en) * | 2016-12-01 | 2017-06-06 | 山东龙源电力工程有限公司 | A kind of gas turbine exhaust gas energy saver |
| CN108425704A (en) * | 2013-01-23 | 2018-08-21 | 概创机械设计有限责任公司 | Turbine containing flow-guiding structure |
-
2018
- 2018-11-27 CN CN201811426525.6A patent/CN109695481A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009007999A1 (en) * | 2009-02-07 | 2010-08-12 | Hobis Ag | Guide ring element for turbines and method for its production |
| CN202273713U (en) * | 2011-08-23 | 2012-06-13 | 常州环能涡轮动力有限公司 | Nozzle assembly of variable-cross-section superchargers |
| CN202392831U (en) * | 2011-10-25 | 2012-08-22 | 南京航空航天大学 | Miniature short-ring direct-current combustor with stream guide device |
| CN202483637U (en) * | 2012-03-03 | 2012-10-10 | 山东坚龙特种不锈钢股份有限公司 | Novel turbine diaphragm |
| CN108425704A (en) * | 2013-01-23 | 2018-08-21 | 概创机械设计有限责任公司 | Turbine containing flow-guiding structure |
| CN105065068A (en) * | 2015-08-13 | 2015-11-18 | 德阳东汽电站机械制造有限公司 | Deflector ring for exhaust hood of turbine |
| CN105179030A (en) * | 2015-08-28 | 2015-12-23 | 杭州汽轮机股份有限公司 | Upward exhaust type welded turbine condensing exhaust hood |
| CN205297659U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Low pressure inner casing second |
| CN206223005U (en) * | 2016-12-01 | 2017-06-06 | 山东龙源电力工程有限公司 | A kind of gas turbine exhaust gas energy saver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360630A (en) * | 2020-10-23 | 2021-02-12 | 中船黄埔文冲船舶有限公司 | Hovercraft gas turbine hydraulic exhaust pipe cover and machining method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190430 |
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| RJ01 | Rejection of invention patent application after publication |