CN203656189U - Main shaft seal structure of water turbine - Google Patents
Main shaft seal structure of water turbine Download PDFInfo
- Publication number
- CN203656189U CN203656189U CN201320741874.3U CN201320741874U CN203656189U CN 203656189 U CN203656189 U CN 203656189U CN 201320741874 U CN201320741874 U CN 201320741874U CN 203656189 U CN203656189 U CN 203656189U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- end cap
- water
- sealing
- water device
- 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
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a main shaft seal structure of a water turbine. The main shaft seal structure of the water turbine comprises a main shaft. The main shaft is respectively provided with a water sealing device and end caps. A gap of the connection portion of the water sealing device and each end cap ranges from two centimeters to three centimeters. A pressure water communicating pipe is arranged between the water sealing device and each end cap and connected between the corresponding end cap and the water sealing device in a sealing mode. Each pressure water communicating pipe is perpendicular to the water sealing device and is communicated with a space of the water sealing device. The main shaft penetrates through the water sealing device and the end caps respectively. The end cap of the upper end of the main shaft and the end cap of the lower end of the main shaft are respectively divided into two sections. The two sections of each end cap are connected through a movable connecting piece. The main shaft seal structure of the water turbine is good in sealing effect, cannot influence the sealing performance in the process of movement, can guarantee long time operation under the normal condition, is good in connecting performance and greatly prolongs the service life.
Description
Technical field
The utility model relates to a kind of sealing configuration, particularly a kind of main shaft-sealing structure for hydroturbines.
Background technique
Along with the development of hydroelectric machine industry, the various aspects of performance of water turbine is constantly optimized, and particularly, aspect main shaft seal, various sealing means constantly improve and are used widely.But in the situation that sediment charge is larger, most main shafts can produce jam phenomenon, thereby lose seal action, main shaft is after jam, when maintenance, working strength is larger, and spindle abrasion degree is also larger, and the complicated structure of general main shaft seal own, also need to be equipped with special compressed air system, be unfavorable for like this saving of cost.
Model utility content
The technical problems to be solved in the utility model is: overcome the problems referred to above, a kind of sealing configuration good sealing effect is provided, also can not affect its sealability when mobile, can guarantee long playing main shaft-sealing structure for hydroturbines under normal circumstances.
To achieve these goals, the technical solution adopted in the utility model is such: main shaft-sealing structure for hydroturbines of the present utility model, comprise main shaft, on main shaft, be respectively equipped with sealing water device and end cap, the gap of sealing water device and end cap joint is two to three centimetres, between sealing water device and end cap, be provided with press water connecting pipe, press water connecting pipe is sealedly connected between end cap and sealing water device, press water connecting pipe is vertical with sealing water device, press water connecting pipe is communicated with sealing water device space, sealing water device and end cap are respectively through main shaft setting, the end cap of main shaft upper end and lower end is divided into two sections, and connect by active connection between two sections of end caps, and be connected with air shroud near on the end cap of main shaft, on air shroud, be coated with sheath, air shroud is connected with end cap by fastening screw trip bolt, and the end cap of main shaft is provided with clamping bolt relatively, also comprise water stop ring, water stop ring one end is connected with sheath, its the other end is fixed on end cap by clamping bolt.
Further, as a kind of concrete structural type, water stop ring described in the utility model is arranged in water stopping trough.
Further, as a kind of concrete structural type, between the press water connecting pipe of main shaft lower end described in the utility model and sealing water device, be connected with waste pipe, waste pipe communicates with press water connecting pipe and sealing water device respectively.
Further, as a kind of concrete structural type, main shaft described in the utility model surface is provided with protective coating.
Compared with prior art, the utility model has the advantage of: this main shaft-sealing structure for hydroturbines good sealing effect, when mobile, can not affect its sealability yet, can guarantee long-play under normal circumstances, and switching performance is good, also significantly strengthen working life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
In figure: 1. main shaft, 2. sealing water device, 3. end cap, 4. press water connecting pipe, 5. active connection, 6. seal connector, 7. clamping bolt, 8. waste pipe, 9. air shroud, 10. sheath, 11. water stop rings.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The preferred embodiment of the utility model main shaft-sealing structure for hydroturbines as shown in Figure 1, comprise main shaft 1, on main shaft 1, be respectively equipped with sealing water device 2 and end cap 3, the gap of sealing water device 2 and end cap 3 joints is two to three centimetres, between sealing water device 2 and end cap 3, be provided with press water connecting pipe 4, press water connecting pipe 4 is sealedly connected between end cap 3 and sealing water device 2, press water connecting pipe 4 is vertical with sealing water device 2, press water connecting pipe 4 is communicated with sealing water device 2 spaces, sealing water device 2 and end cap 3 arrange through main shaft 1 respectively, the end cap 3 of main shaft 1 upper end and lower end is divided into two sections, and connect by active connection 5 between two sections of end caps 3, and be connected with air shroud 9 near on the end cap 3 of main shaft 1, on air shroud 9, be coated with sheath 10, air shroud 9 is connected with end cap 3 by fastening screw trip bolt, and the end cap 3 of main shaft 1 is provided with clamping bolt 7 relatively, also comprise water stop ring 11, water stop ring 11 one end are connected with sheath 10, its the other end is fixed on end cap 3 by clamping bolt 7, described water stop ring 11 is arranged in water stopping trough, between the press water connecting pipe 4 of described main shaft 1 lower end and sealing water device 2, be connected with waste pipe 8, waste pipe 8 communicates with press water connecting pipe 4 and sealing water device 2 respectively, described main shaft 1 surface is provided with protective coating.
The utility model main shaft-sealing structure for hydroturbines good sealing effect, can not affect its sealability when mobile yet, can guarantee long-play under normal circumstances, and switching performance is good, and also significantly strengthen working life.Water stop ring 11 is arranged in water stopping trough, meets design requirement, can play certain protective action, and is convenient to install and safeguard; Between the press water connecting pipe 4 of main shaft 1 lower end and sealing water device 2, be connected with waste pipe 8, waste pipe 8 communicates with press water connecting pipe 4 and sealing water device 2 respectively, and better draining, sand discharge make it be difficult for causing inner obstruction; Main shaft 1 surface is provided with protective coating, can play certain protective action.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this model utility technological thought, carry out various change and modification completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (4)
1. a main shaft-sealing structure for hydroturbines, comprise main shaft, it is characterized in that: on main shaft, be respectively equipped with sealing water device and end cap, the gap of sealing water device and end cap joint is two to three centimetres, between sealing water device and end cap, be provided with press water connecting pipe, press water connecting pipe is sealedly connected between end cap and sealing water device, press water connecting pipe is vertical with sealing water device, press water connecting pipe is communicated with sealing water device space, sealing water device and end cap are respectively through main shaft setting, the end cap of main shaft upper end and lower end is divided into two sections, and connect by active connection between two sections of end caps, and be connected with air shroud near on the end cap of main shaft, on air shroud, be coated with sheath, air shroud is connected with end cap by fastening screw trip bolt, and the end cap of main shaft is provided with clamping bolt relatively, also comprise water stop ring, water stop ring one end is connected with sheath, its the other end is fixed on end cap by clamping bolt.
2. main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described water stop ring is arranged in water stopping trough.
3. main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: between the press water connecting pipe of described main shaft lower end and sealing water device, be connected with waste pipe, waste pipe communicates with press water connecting pipe and sealing water device respectively.
4. main shaft-sealing structure for hydroturbines according to claim 1, is characterized in that: described main shaft surface is provided with protective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741874.3U CN203656189U (en) | 2013-11-22 | 2013-11-22 | Main shaft seal structure of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741874.3U CN203656189U (en) | 2013-11-22 | 2013-11-22 | Main shaft seal structure of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656189U true CN203656189U (en) | 2014-06-18 |
Family
ID=50922577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320741874.3U Expired - Fee Related CN203656189U (en) | 2013-11-22 | 2013-11-22 | Main shaft seal structure of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132139A (en) * | 2013-11-22 | 2014-11-05 | 成都科创佳思科技有限公司 | Main shaft sealing structure for water turbine |
-
2013
- 2013-11-22 CN CN201320741874.3U patent/CN203656189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132139A (en) * | 2013-11-22 | 2014-11-05 | 成都科创佳思科技有限公司 | Main shaft sealing structure for water turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201744966U (en) | Mounting tool for sealing ring | |
| CN203585040U (en) | Foundation bolt protective cover | |
| CN203656189U (en) | Main shaft seal structure of water turbine | |
| CN203778021U (en) | Material mixer cylinder with inner wall adhesive residue cleaning function | |
| CN203132414U (en) | Floating head sealing structure of floating head heat exchanger with built-in packing cavity | |
| CN104132139A (en) | Main shaft sealing structure for water turbine | |
| CN202370732U (en) | Oil receiver of rotary blade type hydraulic turbine | |
| CN202171026U (en) | Sealing structure for valve body and valve cover of valve ball | |
| CN204357763U (en) | A kind of shaft seal structure | |
| CN204672353U (en) | A kind of feed inlet sealing device of ball mill | |
| CN205895672U (en) | Long axis pump antifriction bearing seal structure | |
| CN204866846U (en) | Roll roll chock with waterproof function | |
| CN204253430U (en) | A kind of mechanical seal structure | |
| CN204476342U (en) | A kind of shaft collar of gas storage well | |
| CN204591693U (en) | Energy-efficient rubber ball cleaning pump | |
| CN203742880U (en) | Horizontal hydraulic turbine set | |
| CN203412960U (en) | Bearing for fixing lengthened shaft of motor | |
| CN204025669U (en) | A kind of novel sealing structure | |
| CN203892298U (en) | Multi-seal oil cylinder | |
| CN203214664U (en) | Waterproof bearing seat | |
| CN215763367U (en) | Electro-hydraulic double-layer mushroom head ash discharging valve | |
| CN203510507U (en) | Ram cooling structure of internal mixer | |
| CN202691031U (en) | Oil-leakage-preventing pad | |
| CN201934363U (en) | Novel structure applied to dynamic seal of horizontal chemical pump | |
| CN204552766U (en) | A kind of vane type wet-spraying machine is turned material cavity sealing structure |
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: 20140618 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |