CN204227468U - Hermetically-sealed construction after changeover portion - Google Patents
Hermetically-sealed construction after changeover portion Download PDFInfo
- Publication number
- CN204227468U CN204227468U CN201420629767.6U CN201420629767U CN204227468U CN 204227468 U CN204227468 U CN 204227468U CN 201420629767 U CN201420629767 U CN 201420629767U CN 204227468 U CN204227468 U CN 204227468U
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- China
- Prior art keywords
- changeover portion
- diaphragm seal
- hermetically
- locating slot
- sealed construction
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Abstract
The utility model relates to gas turbine technology field, specifically disclose hermetically-sealed construction after a kind of changeover portion, comprise fixed strip and diaphragm seal, described fixed strip to be fixed on after changeover portion on mounting edge, the first locating slot is provided with between mounting edge after described fixed strip and changeover portion, turbine one-level stator blade is provided with the second locating slot, and one end of described diaphragm seal is stuck in described first locating slot, and the other end of described diaphragm seal is inserted in described second locating slot.After changeover portion of the present utility model, hermetically-sealed construction owing to can install after installing changeover portion, effectively eliminate the possibility occurring in installation process damaging, due to diaphragm seal can be pulled down when not tearing changeover portion open, under changeover portion life-span sufficiently long prerequisite, can accomplish do not dismantle changeover portion and only change diaphragm seal, shorten the repair time.
Description
Technical field
The utility model relates to gas turbine technology field, particularly relates to hermetically-sealed construction after a kind of gas-turbine combustion chamber changeover portion.
Background technology
Typical gas turbine is made up of compressor, combustion chamber, turbine and auxiliary system, and multiple combustion chamber is centered around peritrochanteric ringwise.Compressor compressed air, enters in combustion chamber and burns with fuel mix, and then combustion gas enters turbine acting, and drives compressor compressed air.Changeover portion accepts combustion chamber flame drum and turbine, the high-temperature fuel gas that burner inner liner produces is inducted into turbine, the combustion gas passed through is temperatures as high 1400K ~ 1800K after burner inner liner blending cooling, its import cross sectional shape is consistent with burner inner liner, on outlet, some combustion chambers are connected, and form described turbine one-level stator blade annular entrance, and single changeover portion outlet is then in fan-shaped.
Owing to there is larger pressure differential inside and outside changeover portion, need to export the position that is connected with turbine with diaphragm seal at changeover portion, to prevent pressure-air from directly entering turbine, build-up of pressure loses.At present, common rear diaphragm seal is arranged on the rear mounting edge of changeover portion, after the accident such as easily to collide with in installation process causes, the damage of diaphragm seal, and if need replacing diaphragm seal, must pull down changeover portion, this increase the amount the time that inspection and repair shop needs, cause maintenance work efficiency lower, in addition, the degree of depth of rear sealing locating slot of the prior art is comparatively large and width is very little, bringing great difficulty to processing, is the main cause that changeover portion processing cost is higher.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide hermetically-sealed construction after a kind of changeover portion, easily damages in installation process to overcome rear diaphragm seal of the prior art, and the problem such as maintenance efficiency is lower and cost is higher.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides hermetically-sealed construction after a kind of changeover portion, comprise fixed strip and diaphragm seal, described fixed strip to be fixed on after changeover portion on mounting edge, the first locating slot is provided with between mounting edge after described fixed strip and changeover portion, turbine one-level stator blade is provided with the second locating slot, and one end of described diaphragm seal is stuck in described first locating slot, and the other end of described diaphragm seal is inserted in described second locating slot.
Preferably, one end that described diaphragm seal is stuck in described first locating slot is provided with reinforced sheet, and one end of described diaphragm seal wraps described reinforced sheet.
Preferably, the end face that described diaphragm seal is stuck in one end of described first locating slot is provided with locating bar.
Preferably, the number of described locating bar is 6-10.
Preferably, described reinforced sheet and described diaphragm seal wrap the sections transverse of described reinforced sheet in the other parts of described diaphragm seal.
Preferably, described first locating slot is made up of the groove be located on described fixed strip and the groove after being located at changeover portion on mounting edge.
Preferably, described second locating slot is vertical with the end face of turbine one-level stator blade.
Preferably, it is characterized in that, described fixed strip to be bolted on after changeover portion on mounting edge.
Preferably, the number of described bolt is 3-5.
Preferably, the profile of profile and the mounting edge after changeover portion of described fixed strip and diaphragm seal and the junction of turbine one-level stator blade is corresponding.
(3) beneficial effect
Hermetically-sealed construction after changeover portion of the present utility model, has the following advantages:
(1) because hermetically-sealed construction first locating slot after changeover portion of the present utility model is formed by mounting edge after fixed strip and changeover portion, therefore the degree of depth on single part can reduce to some extent, thus reduces the cost of processing;
(2) because hermetically-sealed construction after changeover portion of the present utility model can be installed after installing changeover portion, the possibility occurring damaging can effectively be eliminated in installation process;
(3) because hermetically-sealed construction after the utility model changeover portion can pull down diaphragm seal when not tearing changeover portion open, under changeover portion life-span sufficiently long prerequisite, can accomplish do not dismantle changeover portion and only change diaphragm seal, shortening the repair time.
Accompanying drawing explanation
Fig. 1 is the stereogram of hermetically-sealed construction after the changeover portion of the utility model embodiment;
Fig. 2 is the section plan of hermetically-sealed construction after the changeover portion of the utility model embodiment;
Fig. 3 is the partial enlarged drawing of hermetically-sealed construction after the changeover portion of the utility model embodiment;
Fig. 4 is the structure chart of the diaphragm seal of hermetically-sealed construction after the changeover portion of the utility model embodiment.
In figure, 1: changeover portion; 2: rear mounting edge; 3: turbine one-level stator blade; 4: the second locating slots; 5: bolt; 6: fixed strip; 7: the first locating slots; 8: diaphragm seal; 9: reinforced sheet; 10: locating bar.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
As Figure 1-4, after the changeover portion of the present embodiment, hermetically-sealed construction comprises: fixed strip 6 and diaphragm seal 8, and the profile of the junction of the profile of fixed strip 6 and diaphragm seal 8 and mounting edge 2 after changeover portion 1 and turbine one-level stator blade 3 is corresponding.
Fixed strip 6 can be fixed on after changeover portion 1 on mounting edge 2 by bolt 5, and the number of bolt 5 is preferably 3-5, and fixed strip 6 has the effect of mounting edge 2 intensity after certain enhancing, can reduce the distortion of changeover portion 1.
The first locating slot 7 is provided with between fixed strip 6 and the rear mounting edge 2 of changeover portion 1, first locating slot 7 is made up of the groove be located on fixed strip 6 and the groove two parts after being located at changeover portion 1 on mounting edge 2, and the first locating slot 7 is perpendicular to the contact surface of the rear mounting edge 2 of fixed strip 6 and changeover portion 1; Turbine one-level stator blade 3 is provided with the second locating slot 4, second locating slot 4 perpendicular to the end face of turbine one-level stator blade 3, moves for the axis limiting diaphragm seal 8.
One end of diaphragm seal 8 is stuck in the first locating slot 7, and the other end of diaphragm seal 8 is inserted in the second locating slot 4; One end that diaphragm seal 8 is stuck in the first locating slot 7 is provided with reinforced sheet 9, and one end of diaphragm seal 8 wraps reinforced sheet 9, and reinforced sheet 9 is made for rigid material, can strengthen the rigidity of diaphragm seal 8 entirety; The end face that diaphragm seal 8 is stuck in one end of the first locating slot 7 is provided with locating bar 10, and the number of locating bar 10 is preferably 6-10, and object is the axial location limiting diaphragm seal 8; Reinforced sheet 9 and diaphragm seal 8 wrap the sections transverse of reinforced sheet 9 in the other parts of diaphragm seal 8.
After the changeover portion of the present embodiment, the installation process of hermetically-sealed construction is: after the changeover portion of the present embodiment, hermetically-sealed construction is installed after changeover portion 1 completes installation, first one end of diaphragm seal 8 is inserted in the second seal groove 4 of turbine one-level stator blade 3, then the other end (namely having one end of reinforced sheet 9) of diaphragm seal 8 is inserted in the groove (half of the first locating slot 7) on rear mounting edge 2, finally by bolt 5, fixed strip 6 is fixedly installed on rear mounting edge 2.
Hermetically-sealed construction after changeover portion of the present utility model, has the following advantages:
(1) because hermetically-sealed construction first locating slot after changeover portion of the present utility model is formed by mounting edge after fixed strip and changeover portion, therefore the degree of depth on single part can reduce to some extent, thus reduces the cost of processing;
(2) because hermetically-sealed construction after changeover portion of the present utility model can be installed after installing changeover portion, the possibility occurring damaging can effectively be eliminated in installation process;
(3) because hermetically-sealed construction after the utility model changeover portion can pull down diaphragm seal when not tearing changeover portion open, under changeover portion life-span sufficiently long prerequisite, can accomplish do not dismantle changeover portion and only change diaphragm seal, shortening the repair time.
Embodiment of the present utility model provides for the purpose of example and description, and is not exhaustively or by the utility model be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and practical application are better described, and enables those of ordinary skill in the art understand the utility model thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. hermetically-sealed construction after a changeover portion, it is characterized in that, comprise fixed strip and diaphragm seal, described fixed strip to be fixed on after changeover portion on mounting edge, the first locating slot is provided with between mounting edge after described fixed strip and changeover portion, turbine one-level stator blade is provided with the second locating slot, and one end of described diaphragm seal is stuck in described first locating slot, and the other end of described diaphragm seal is inserted in described second locating slot.
2. hermetically-sealed construction after changeover portion according to claim 1, is characterized in that, one end that described diaphragm seal is stuck in described first locating slot is provided with reinforced sheet, and one end of described diaphragm seal wraps described reinforced sheet.
3. hermetically-sealed construction after changeover portion according to claim 2, is characterized in that, the end face that described diaphragm seal is stuck in one end of described first locating slot is provided with locating bar.
4. hermetically-sealed construction after changeover portion according to claim 3, is characterized in that, the number of described locating bar is 6-10.
5. hermetically-sealed construction after changeover portion according to claim 3, is characterized in that, described reinforced sheet and described diaphragm seal wrap the sections transverse of described reinforced sheet in the other parts of described diaphragm seal.
6. hermetically-sealed construction after changeover portion according to claim 5, is characterized in that, described first locating slot is made up of the groove be located on described fixed strip and the groove after being located at changeover portion on mounting edge.
7. hermetically-sealed construction after changeover portion according to claim 6, is characterized in that, described second locating slot is vertical with the end face of turbine one-level stator blade.
8. according to hermetically-sealed construction after the changeover portion in claim 1-7 described in any one, it is characterized in that, described fixed strip to be bolted on after changeover portion on mounting edge.
9. hermetically-sealed construction after changeover portion according to claim 8, is characterized in that, the number of described bolt is 3-5.
10. hermetically-sealed construction after changeover portion according to claim 1, is characterized in that, the profile of the junction of the profile of described fixed strip and diaphragm seal and mounting edge after changeover portion and turbine one-level stator blade is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629767.6U CN204227468U (en) | 2014-10-28 | 2014-10-28 | Hermetically-sealed construction after changeover portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629767.6U CN204227468U (en) | 2014-10-28 | 2014-10-28 | Hermetically-sealed construction after changeover portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204227468U true CN204227468U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420629767.6U Active CN204227468U (en) | 2014-10-28 | 2014-10-28 | Hermetically-sealed construction after changeover portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204227468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481701A (en) * | 2014-10-28 | 2015-04-01 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Transition section rear sealing structure |
-
2014
- 2014-10-28 CN CN201420629767.6U patent/CN204227468U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481701A (en) * | 2014-10-28 | 2015-04-01 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Transition section rear sealing structure |
| CN104481701B (en) * | 2014-10-28 | 2016-09-07 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Structure is sealed after changeover portion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transition section rear sealing structure Effective date of registration: 20161104 Granted publication date: 20150325 Pledgee: Tsinghua Holdings Co., Ltd. Pledgor: Beijing Huatsing Gas Turbine & IGCC Technology Co., Ltd. Registration number: 2016990000853 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191211 Granted publication date: 20150325 Pledgee: Tsinghua Holdings Co., Ltd. Pledgor: Beijing Huatsing Gas Turbine & IGCC Technology Co., Ltd. Registration number: 2016990000853 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |