CN216077393U - Guide vane sleeve sealing structure - Google Patents
Guide vane sleeve sealing structure Download PDFInfo
- Publication number
- CN216077393U CN216077393U CN202121631835.9U CN202121631835U CN216077393U CN 216077393 U CN216077393 U CN 216077393U CN 202121631835 U CN202121631835 U CN 202121631835U CN 216077393 U CN216077393 U CN 216077393U
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- China
- Prior art keywords
- guide vane
- water retaining
- sealing
- hole
- seat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
A guide vane sleeve sealing structure comprises a top cover, wherein a through hole is processed on the top cover; a guide vane sleeve is sleeved in the through hole; a guide vane shaft penetrates through the guide vane sleeve; the bottom of the top cover is provided with a water retaining sealing seat, a through hole is processed in the middle of the water retaining sealing seat, and the water retaining sealing seat is sleeved outside the guide vane shaft by the through hole; the upper end of the water retaining seal seat penetrates into the through hole, and a first seal ring and a second seal ring are respectively arranged between the side surface of the water retaining seal seat and the side surface of the through hole as well as between the side surface of the water retaining seal seat and the outer side of the guide vane shaft; and a sealing gasket is arranged between the upper end of the water retaining sealing seat and the bottom of the guide vane sleeve. The guide vane sleeve adopts multiple seals, so that the sealing performance of the guide vane sleeve is improved, and water is prevented from entering the top cover; the water retaining sealing seat adopts a symmetrical structure, and the sealing ring and the sealing gasket are convenient to replace; the water blocking disc is utilized to reduce water pressure impact and reduce the damage of cavitation to the internal sealing part.
Description
Technical Field
The utility model relates to the field of water turbine manufacturing, in particular to a guide vane sleeve sealing structure.
Background
Guide vane sleeve installs in the through-hole of top cap, hydraulic turbine during operation, the water pressure that the impeller produced enters into to the top cap in from the gap easily, generally set up the sealing washer in guide vane sleeve and through-hole junction and seal, prevent that water from getting into inside the top cap, because the seal washer can be destroyed in the cavitation erosion effect, need maintain after a long time, pull down the sealing washer of renewal with guide vane sleeve, because when dismantling, need pull down guide vane arm earlier, just can take out guide vane sleeve, whole change step is loaded down with trivial details.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a guide vane sleeve sealing structure, which is directed to the above-mentioned deficiencies of the prior art.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a guide vane sleeve sealing structure comprises a top cover, wherein a through hole is processed on the top cover; a guide vane sleeve is sleeved in the through hole; a guide vane shaft penetrates through the guide vane sleeve; the bottom of the top cover is provided with a water retaining sealing seat, a through hole is processed in the middle of the water retaining sealing seat, and the water retaining sealing seat is sleeved outside the guide vane shaft by the through hole; the upper end of the water retaining seal seat penetrates into the through hole, and a first seal ring and a second seal ring are respectively arranged between the side surface of the water retaining seal seat and the side surface of the through hole as well as between the side surface of the water retaining seal seat and the outer side of the guide vane shaft; and a sealing gasket is arranged between the upper end of the water retaining sealing seat and the bottom of the guide vane sleeve.
Further, the two ends of the sealing gasket are narrow, and the middle of the sealing gasket is wide.
Furthermore, the upper end of the guide vane sleeve is connected with a flange plate, and the flange plate is installed at the upper end of the top cover through a first bolt.
Furthermore, the water retaining sealing seats adopt a symmetrical structure, and a water retaining disc is formed on the outer side of the combined water retaining sealing seats; mounting holes are uniformly distributed on the water retaining disc; and the mounting hole is mounted with the lower end of the top cover through a second bolt.
Compared with the prior art, the guide vane sleeve sealing structure has the following beneficial effects:
1. multiple sealing is adopted, so that the sealing performance of the guide vane sleeve is improved, and water is prevented from entering the top cover;
2. the water retaining sealing seat adopts a symmetrical structure, and the sealing ring and the sealing gasket are convenient to replace;
3. the water blocking disc is utilized to reduce water pressure impact and reduce the damage of cavitation to the internal sealing part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic structural view of the water retaining seal seat of the present invention;
the guide vane sealing device comprises a top cover 1, a top cover 2, a guide vane sleeve 3, a flange plate 4, a guide vane shaft 5, a water retaining sealing seat 6, a first sealing ring 7, a second sealing ring 8, a sealing gasket 9, a water retaining plate 10 and a mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
As shown in fig. 1 to 3, a guide vane sleeve sealing structure includes a top cover 1, wherein a through hole is processed on the top cover 1; a guide vane sleeve 2 is sleeved in the through hole, the upper end of the guide vane sleeve 2 is connected with a flange plate 3, and the flange plate 3 is installed at the upper end of the top cover 1 through a first bolt; a guide vane shaft 4 penetrates through the guide vane sleeve 2; the bottom of the top cover 1 is provided with a water retaining seal seat 5, a through hole is processed in the middle of the water retaining seal seat 5, and the water retaining seal seat 5 is sleeved outside the guide vane shaft 4 by the through hole.
The upper end of the water retaining seal seat 5 penetrates into the through hole, and the water retaining seal seat 5 is hermetically connected in the through hole, in the embodiment, the outer side surface of the water retaining seal seat 5 is hermetically connected with the side surface of the through hole through a first seal ring 6, and the inner side surface of the water retaining seal seat 5 is hermetically connected with the outer side of the guide vane shaft 4 through a second seal ring 7; be provided with seal ring 8 between 5 upper ends of manger plate seal receptacle and the stator sleeve 2 bottom, seal ring 8 is narrow in the middle of the both ends is wide, and after manger plate seal receptacle 5 was installed completely, seal ring 8 was extrudeed and is warp, filled up gap around, promoted sealing performance.
The water retaining seal seat 5 adopts a symmetrical structure, the outer side of the water retaining seal seat 5 forms a water retaining disc 9 after combination, and the water retaining disc 9 can reduce water pressure impact and reduce damage to an internal sealing element caused by cavitation erosion; mounting holes 10 are uniformly distributed on the water retaining disc 9; the mounting hole 10 is mounted with the lower end of the top cover 1 through a second bolt.
The present invention is not limited to the embodiments described above, and those skilled in the art may make modifications or changes within the scope of the disclosure without departing from the spirit of the present invention, so that the scope of the present invention is defined by the appended claims.
Claims (4)
1. A guide vane sleeve sealing structure comprises a top cover, wherein a through hole is processed on the top cover; a guide vane sleeve is sleeved in the through hole; guide vane shaft, its characterized in that wear to be equipped with in the stator sleeve: the bottom of the top cover is provided with a water retaining sealing seat, a through hole is processed in the middle of the water retaining sealing seat, and the water retaining sealing seat is sleeved outside the guide vane shaft by the through hole; the upper end of the water retaining seal seat penetrates into the through hole, and a first seal ring and a second seal ring are respectively arranged between the side surface of the water retaining seal seat and the side surface of the through hole as well as between the side surface of the water retaining seal seat and the outer side of the guide vane shaft; and a sealing gasket is arranged between the upper end of the water retaining sealing seat and the bottom of the guide vane sleeve.
2. The vane sleeve seal structure of claim 1, wherein: the two ends of the sealing washer are narrow and the middle of the sealing washer is wide.
3. The vane sleeve seal structure of claim 1, wherein: the upper end of the guide vane sleeve is connected with a flange plate, and the flange plate is installed at the upper end of the top cover through a first bolt.
4. The vane sleeve seal structure of claim 1, wherein: the water retaining sealing seats are of symmetrical structures, and a water retaining disc is formed on the outer side of the combined water retaining sealing seats; mounting holes are uniformly distributed on the water retaining disc; and the mounting hole is mounted with the lower end of the top cover through a second bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631835.9U CN216077393U (en) | 2021-07-16 | 2021-07-16 | Guide vane sleeve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631835.9U CN216077393U (en) | 2021-07-16 | 2021-07-16 | Guide vane sleeve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077393U true CN216077393U (en) | 2022-03-18 |
Family
ID=80665678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121631835.9U Active CN216077393U (en) | 2021-07-16 | 2021-07-16 | Guide vane sleeve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077393U (en) |
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2021
- 2021-07-16 CN CN202121631835.9U patent/CN216077393U/en active Active
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