CN203703131U - Expanding sealing type water turbine main shaft sealing structure - Google Patents
Expanding sealing type water turbine main shaft sealing structure Download PDFInfo
- Publication number
- CN203703131U CN203703131U CN201420069125.5U CN201420069125U CN203703131U CN 203703131 U CN203703131 U CN 203703131U CN 201420069125 U CN201420069125 U CN 201420069125U CN 203703131 U CN203703131 U CN 203703131U
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- CN
- China
- Prior art keywords
- main shaft
- layer
- seal ring
- ring
- hydroturbines
- 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 - Fee Related
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Classifications
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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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- Sealing Devices (AREA)
Abstract
The utility model discloses an expanding sealing type water turbine main shaft sealing structure. A main shaft mounting hole is formed in the middle of a sealing support. A main shaft sealing ring, a pressure distributing plate and a pressure distributing ring are arranged in a groove in the upper surface of the sealing support in sequence with the main shaft mounting hole as a circle center. A sealing ring is arranged on the upper surface of the sealing support. A sealing padding layer is arranged at the contacting portion of the sealing ring and a main shaft. An adjusting plate is arranged on the upper portion of the sealing padding layer. The adjusting plate is connected with the sealing ring through an adjusting bolt. Connecting rod mounting grooves are formed in the pressure distributing ring. The pressure distributing plate comprises a plurality of arc modules. Each module corresponds to a connecting rod mounting groove. The pressure distributing plate is connected with the pressure distributing ring through a sleeve rod. The pressure distributing ring is connected with the sealing ring. A compression spring is arranged on the sleeve rod. An abrasion-resisting layer is arranged on the outermost layer of the main shaft sealing ring. The second layer is a pressure bearing layer. The third layer is an elasticity layer. The fourth layer is a water absorbing layer. The fifth layer is an expanding layer. A connecting line is arranged between the abrasion-resisting layer and the pressure bearing layer. A water guiding hole is formed in the main shaft sealing ring.
Description
Technical field
The utility model design mechanical engineering is in production and the general measures that keeps machine or effective operation of apparatus, between the surface of relative movement, to be filled with the apparatus field sealing with the filler radially or tangentially compressing, espespecially a kind of Expansion sealing type main shaft-sealing structure for hydroturbines.
Background technique
In prior art, the sealing of hydraulic turbine main shaft adopts seal ring mostly, and seal ring requirement still can be relative to rotating with change under sealing state, and pressure can not be excessive can not be too small, the excessive main shaft that affects rotates, too small sealing is poor, what in actual use, often meet is all the excessive problem of pressure, pressure is excessive, cause change and seal ring laminating tension, there is dry friction, very easily damage seal ring, and the damage of seal ring outer surface can aggravate the wearing and tearing of change, in order to reach a better suited constant pressure, prior art adopts air pressure and hydraulic pressure that stable external pressure is provided, the problem of bringing is to cause whole sealing configuration more complicated, installation and repairing comparatively bothers, brought the increase of the accessory while use simultaneously, gas constant voltage can cause the local gas bag that forms, make this region occur differential expansion, cause sealing ring deformation, there is the problems such as corrosion in hydraulic pressure.
Summary of the invention
For addressing the above problem, the utility model provides a kind of Expansion sealing type main shaft-sealing structure for hydroturbines, this apparatus structure is simple, accessory is few, convenient for installation and maintenance, and sealing configuration is made up of multiple little modules, safeguard that replacement cost is low, constant voltage is effective, long service life, and seal ring occurs that breakage still can be used simultaneously.
For achieving the above object, the utility model adopts following technology to realize, a kind of Expansion sealing type main shaft-sealing structure for hydroturbines, comprise regulator plate, adjusting bolt, stuffing box packing layer, seal ring, sealed support, join pressure ring, join pressing plate, main shaft seal circle, wherein sealed support middle part is provided with spindle mounting hole, in sealed support upper surface groove, be disposed with main shaft seal circle as circular taking spindle mounting hole, join pressing plate, join pressure ring, be provided with seal ring at sealed support upper surface, seal ring and main shaft contacting point are provided with stuffing box packing layer, be provided with regulator plate on stuffing box packing layer top, regulator plate is connected with seal ring by adjusting bolt, join and on pressure ring, be provided with connecting rod mounting groove, joining pressing plate is made up of multiple circular arc modules, the corresponding connecting rod mounting groove of each module, join pressing plate by loop bar with join pressure ring and be connected, joining pressure ring is connected with seal ring, on loop bar, be provided with Compress Spring, main shaft seal circle outermost surface is wearing layer, the second layer is bearing course, the 3rd layer is elastic layer, the 4th layer is water absorption layer, layer 5 is expanding layer, in the middle of wearing layer and bearing course, be provided with connecting line, on main shaft seal circle, be provided with water-guiding hole.
As further improvement of the utility model, between described main shaft and seal ring, be also provided with rotating cylinder, rotating cylinder internal surface is provided with driver plate, and the outerface of spindle is provided with the driver plate mounting groove matching with driver plate.
As further improvement of the utility model, described seal ring with join pressure ring joint and be provided with secondary seal ring.
As further improvement of the utility model, described seal ring and sealed support joint are provided with secondary seal ring.
As further improvement of the utility model, described main shaft seal circle is installed between seal ring and sealed support, on seal ring and sealed support and main shaft seal circle surface of contact, is respectively arranged with seal convexity.
As further improvement of the utility model, described wearing layer is rubber layer.
As further improvement of the utility model, described bearing course is rubber layer.
As further improvement of the utility model, described connecting line is cotton thread.
As further improvement of the utility model, described elastic layer is rubber layer.
As further improvement of the utility model, described water absorption layer is spongy layer.
As further improvement of the utility model, described expanding layer is palladium bisque.
The utility model compared with prior art has following beneficial effect:
1, this apparatus structure is simple, and accessory is few, convenient for installation and maintenance, and sealing configuration is made up of multiple little modules, safeguards that replacement cost is low, and constant voltage is effective, long service life, and seal ring occurs that breakage still can be used simultaneously.
Brief description of the drawings
Fig. 1 is a kind of Expansion sealing type main shaft-sealing structure for hydroturbines schematic diagram;
Fig. 2 is a kind of Expansion sealing type main shaft-sealing structure for hydroturbines institute's establishing pressure ring and joins pressing plate plan view;
Fig. 3 is the set barrel configuration schematic diagram of a kind of Expansion sealing type main shaft-sealing structure for hydroturbines;
Fig. 4 is the set main shaft structure schematic diagram of a kind of Expansion sealing type main shaft-sealing structure for hydroturbines;
Fig. 5 is the set seal ring scheme of installation of a kind of Expansion sealing type main shaft-sealing structure for hydroturbines;
Fig. 6 is the set seal ring internal structure of a kind of Expansion sealing type main shaft-sealing structure for hydroturbines schematic diagram;
Fig. 7 is the set elastic structure schematic diagram of a kind of Expansion sealing type main shaft-sealing structure for hydroturbines;
1-rotating cylinder in figure; 2-main shaft; 3-driver plate; 4-regulator plate; 5-adjusting bolt; 6-stuffing box packing layer; 7-seal ring; 8-sealed support; 9-joins pressure ring; 10-joins pressing plate; 11-main shaft seal circle; 12-secondary seal ring; 13-driver plate mounting groove; 14-seal convexity; 15-water-guiding hole; 16-wearing layer; 17-connecting line; 18-bearing course; 19-elastic layer; 20-water absorption layer; 21-expanding layer; 22-connecting rod mounting groove; 23-loop bar; 24-Compress Spring; 25-mounting handle.
Embodiment
Embodiment 1
A kind of Expansion sealing type main shaft-sealing structure for hydroturbines as shown in Figures 1 to 7, comprise regulator plate 4, adjusting bolt 5, stuffing box packing layer 6, seal ring 7, sealed support 8, join pressure ring 9, join pressing plate 10, main shaft seal circle 11, wherein sealed support 8 middle parts are provided with spindle mounting hole, in sealed support 8 upper surface grooves, be disposed with main shaft seal circle 11 as circular taking spindle mounting hole, join pressing plate 10, join pressure ring 9, be provided with seal ring 7 at sealed support 8 upper surfaces, seal ring 7 is provided with stuffing box packing layer 6 with main shaft 2 contacting points, be provided with regulator plate 4 on stuffing box packing layer 6 top, regulator plate 4 is connected with seal ring 7 by adjusting bolt 5, join and on pressure ring 9, be provided with connecting rod mounting groove 22, joining pressing plate 10 is made up of multiple circular arc modules, the corresponding connecting rod mounting groove 22 of each module, join pressing plate 10 by loop bar 23 with join pressure ring 9 and be connected, joining pressure ring 9 is connected with seal ring 7, on loop bar 23, be provided with Compress Spring, main shaft seal circle 11 outermost surfaces are wearing layer 16, the second layer is bearing course 18, the 3rd layer is elastic layer 19, the 4th layer is water absorption layer 20, layer 5 is expanding layer 21, in the middle of wearing layer 16 and bearing course 18, be provided with connecting line 17, on main shaft seal circle 11, be provided with water-guiding hole 15, between described main shaft 2 and seal ring 7, be also provided with rotating cylinder 1, rotating cylinder 1 internal surface is provided with driver plate 3, main shaft 2 outer surfaces are provided with the driver plate mounting groove 13 matching with driver plate 3, described seal ring 7 with join pressure ring 9 joints and be provided with secondary seal ring 12, described seal ring 7 is provided with secondary seal ring 12 with sealed support 8 joints, described main shaft seal circle 11 is installed between seal ring 7 and sealed support 8, on seal ring 7 and sealed support 8 and main shaft seal circle 11 surface of contact, be respectively arranged with seal convexity 14, described wearing layer 16 is rubber layer, described bearing course 18 is rubber layer, described connecting line 17 is cotton thread, described elastic layer 19 is rubber layer, described water absorption layer 20 is spongy layer, described expanding layer 21 is palladium bisque.
Claims (10)
1. an Expansion sealing type main shaft-sealing structure for hydroturbines, comprise regulator plate (4), adjusting bolt (5), stuffing box packing layer (6), seal ring (7), sealed support (8), join pressure ring (9), join pressing plate (10), main shaft seal circle (11), it is characterized in that: sealed support (8) middle part is provided with spindle mounting hole, in sealed support (8) upper surface groove, be disposed with main shaft seal circle (11) as circular taking spindle mounting hole, join pressing plate (10), join pressure ring (9), be provided with seal ring (7) at sealed support (8) upper surface, seal ring (7) is provided with stuffing box packing layer (6) with main shaft (2) contacting point, be provided with regulator plate (4) on stuffing box packing layer (6) top, regulator plate (4) is connected with seal ring (7) by adjusting bolt (5), join and on pressure ring (9), be provided with connecting rod mounting groove (22), joining pressing plate (10) is made up of multiple circular arc modules, the corresponding connecting rod mounting groove of each module (22), join pressing plate (10) by loop bar (23) with join pressure ring (9) and be connected, joining pressure ring (9) is connected with seal ring (7), loop bar is provided with Compress Spring on (23), main shaft seal circle (11) outermost surface is wearing layer (16), the second layer is bearing course (18), the 3rd layer is elastic layer (19), the 4th layer is water absorption layer (20), layer 5 is expanding layer (21), in the middle of wearing layer (16) and bearing course (18), be provided with connecting line (17), on main shaft seal circle (11), be provided with water-guiding hole (15).
2. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, it is characterized in that: between described main shaft (2) and seal ring (7), be also provided with rotating cylinder (1), rotating cylinder (1) internal surface is provided with driver plate (3), and main shaft (2) outer surface is provided with the driver plate mounting groove (13) matching with driver plate (3).
3. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described seal ring (7) with join pressure ring (9) joint and be provided with secondary seal ring (12).
4. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described seal ring (7) is provided with secondary seal ring (12) with sealed support (8) joint.
5. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, it is characterized in that: described main shaft seal circle (11) is installed between seal ring (7) and sealed support (8), on seal ring (7) and sealed support (8) and main shaft seal circle (11) surface of contact, be respectively arranged with seal convexity (14).
6. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described wearing layer (16) is rubber layer.
7. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described bearing course (18) is rubber layer.
8. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described connecting line (17) is cotton thread.
9. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described elastic layer (19) is rubber layer.
10. a kind of Expansion sealing type main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described water absorption layer (20) is spongy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069125.5U CN203703131U (en) | 2014-02-18 | 2014-02-18 | Expanding sealing type water turbine main shaft sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069125.5U CN203703131U (en) | 2014-02-18 | 2014-02-18 | Expanding sealing type water turbine main shaft sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703131U true CN203703131U (en) | 2014-07-09 |
Family
ID=51053576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069125.5U Expired - Fee Related CN203703131U (en) | 2014-02-18 | 2014-02-18 | Expanding sealing type water turbine main shaft sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703131U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439027A (en) * | 2016-11-25 | 2017-02-22 | 国家电网公司 | Sealing device for guide vane sleeve of water turbine |
| CN107420247A (en) * | 2017-07-26 | 2017-12-01 | 盐城润浩密封件科技有限公司 | A kind of guide vanes of water turbine sleeve seal device |
| CN110040747A (en) * | 2019-05-10 | 2019-07-23 | 张健 | Alkali liquor allocator |
-
2014
- 2014-02-18 CN CN201420069125.5U patent/CN203703131U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439027A (en) * | 2016-11-25 | 2017-02-22 | 国家电网公司 | Sealing device for guide vane sleeve of water turbine |
| CN107420247A (en) * | 2017-07-26 | 2017-12-01 | 盐城润浩密封件科技有限公司 | A kind of guide vanes of water turbine sleeve seal device |
| CN110040747A (en) * | 2019-05-10 | 2019-07-23 | 张健 | Alkali liquor allocator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20170218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |