CN201810459U - Compressed air ring sealing device for main shaft of vertical axial flow water turbine - Google Patents
Compressed air ring sealing device for main shaft of vertical axial flow water turbine Download PDFInfo
- Publication number
- CN201810459U CN201810459U CN201020559937XU CN201020559937U CN201810459U CN 201810459 U CN201810459 U CN 201810459U CN 201020559937X U CN201020559937X U CN 201020559937XU CN 201020559937 U CN201020559937 U CN 201020559937U CN 201810459 U CN201810459 U CN 201810459U
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- Prior art keywords
- main shaft
- base
- water turbine
- compressed air
- ring
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- Expired - Fee Related
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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 relates to a compressed air ring sealing device for a main shaft of a vertical axial flow water turbine, which is installed in the inner cavity of a water turbine support cover, sleeved at the lower end of the main shaft and positioned below a bearing and a working seal. A base of the compressed air ring sealing device is installed on the water turbine support cover through bolts, an upper cover is connected with the base through stud bolts and nuts, a rubber hollow ring is installed in an annular groove where the upper cover and the base are jointed, the upper cover, the rubber hollow ring and the base share the same central axis with the main shaft, the inner rings of the upper cover and the base are both in clearance fit with the main shaft, compressed air pipe enters from the top of the support cover and is communicated with a pipe joint installed on the upper cover, and the pipe joint is in sealing connection with the rubber hollow ring. When the vertical axial flow water turbine is shut down for overhauling, compressed air is input into the rubber hollow ring through the compressed air pipe, and the rubber hollow ring expands radially towards the main shaft and clings to the main shaft closely to completely block water and stop water from entering the inner cavity of the water turbine and thereby ensure convenient, safe and reliable overhaul.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of ring seal arrangement of calming the anger of vertical shaft streaming hydraulic turbine main shaft.
Background technique
The water turbine periodical repair is the guarantee of water turbine stable operation, and unit is inner during maintenance must guarantee do not have water to enter, otherwise can't overhaul.Though vertical shaft streaming water turbine is provided with working seal, it can not seal water fully, and the shutdown water leakage is bigger, must adopt a kind of seal arrangement to come complete shutoff current.
Summary of the invention
The purpose of this utility model provides a kind of ring seal arrangement of calming the anger of vertical shaft streaming hydraulic turbine main shaft, is used for vertical shaft streaming water turbine and shuts down complete shutoff current when overhauling.
The technical solution of the utility model is: a kind of ring seal arrangement of calming the anger of vertical shaft streaming hydraulic turbine main shaft is installed in the inner chamber of water turbine support cover and is sleeved on the lower end of main shaft, is positioned at the below of bearing and working seal; The base of ring seal arrangement of calming the anger is installed on the water turbine support cover by bolt, and loam cake connects as one by stud bolt and nut and base, and the hollow rubber ring is installed in the annular groove of loam cake and base combination.Described loam cake, hollow rubber ring and base all have central axis with main shaft, and the inner ring of loam cake and base all cooperates with gap of main reinforcement.Air pipe enters with the pipe joint that is installed in loam cake from the support cover top and is communicated with, and pipe joint and hollow rubber ring are tightly connected.
The beneficial effects of the utility model are: when vertical shaft streaming water turbine is shut down maintenance; by the pressurized air of air pipe to hollow rubber ring input 0.5 ~ 0.7MPa; the hollow rubber ring is close to towards the main shaft radial expansion and with main shaft; thereby reach the effect of complete shutoff current; water turbine support cover inner chamber does not have water intrusion, guarantees that maintenance is convenient, safety, reliable.
Description of drawings
Fig. 1 is the scheme of installation of the utility model at water turbine support cover inner chamber.
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment is shown in Fig. 1-2: a kind of ring seal arrangement 2 of calming the anger of vertical shaft streaming hydraulic turbine main shaft is installed in the inner chamber of water turbine support cover 1 and is sleeved on the lower end of main shaft 5, is positioned at the below of bearing 4 and working seal 3; The base 11 of ring seal arrangement 2 of calming the anger is installed on the water turbine support cover 1 by bolt 10, and loam cake 7 connects as one with base 11 by stud bolt 9 and nut 8, and hollow rubber ring 12 is installed in the annular groove of loam cake 7 and base 11 combinations.Described loam cake 7, hollow rubber ring 12 and base 11 all with the total central axis of main shaft 5, the inner ring of loam cake 7 and base 11 all with main shaft 5 Spielpassung.Air pipe 6 enters with the pipe joint 13 that is installed in loam cake 7 from support cover 1 top and is communicated with, and pipe joint 13 is tightly connected with hollow rubber ring 12.
When vertical shaft streaming water turbine is shut down maintenance; by the pressurized air of air pipe to hollow rubber ring input 0.6MPa; the hollow rubber ring is close to towards the main shaft radial expansion and with main shaft; reach complete sealing effect; water turbine support cover inner chamber does not have water intrusion, guarantees that maintenance is convenient, safety, reliable.
Claims (2)
1. the ring seal arrangement of calming the anger of a vertical shaft streaming hydraulic turbine main shaft, it is characterized in that: the ring seal arrangement (2) of calming the anger is installed in the inner chamber of water turbine support cover (1) and is sleeved on the lower end of main shaft (5), is positioned at the below of bearing (4) and working seal (3); The base (11) of ring seal arrangement (2) of calming the anger is installed on the water turbine support cover (1) by bolt (10), loam cake (7) connects as one with base (11) by stud bolt (9) and nut (8), and hollow rubber ring (12) is installed in the annular groove of loam cake (7) and base (11) combination; Air pipe (6) enters with the pipe joint that is installed in loam cake (7) (13) from support cover (1) top and is communicated with, and pipe joint (13) is tightly connected with hollow rubber ring (12).
2. the ring seal arrangement of calming the anger of a kind of vertical shaft streaming hydraulic turbine main shaft according to claim 1, it is characterized in that: described loam cake (7), hollow rubber ring (12) and base (11) all with the total central axis of main shaft (5), the inner ring of loam cake (7) and base (11) all with main shaft (5) Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020559937XU CN201810459U (en) | 2010-10-13 | 2010-10-13 | Compressed air ring sealing device for main shaft of vertical axial flow water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020559937XU CN201810459U (en) | 2010-10-13 | 2010-10-13 | Compressed air ring sealing device for main shaft of vertical axial flow water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810459U true CN201810459U (en) | 2011-04-27 |
Family
ID=43893401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020559937XU Expired - Fee Related CN201810459U (en) | 2010-10-13 | 2010-10-13 | Compressed air ring sealing device for main shaft of vertical axial flow water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Triangular air shroud ring sealing structure for hydroturbine |
| CN111606537A (en) * | 2020-06-11 | 2020-09-01 | 辽宁省环保集团有限责任公司 | High-efficient anaerobic fermentation jar airtight formula end support agitating unit |
| CN114876700A (en) * | 2022-06-13 | 2022-08-09 | 大唐雅安电力开发有限公司 | Water turbine maintenance sealing method and device based on air sealing |
-
2010
- 2010-10-13 CN CN201020559937XU patent/CN201810459U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Triangular air shroud ring sealing structure for hydroturbine |
| CN111606537A (en) * | 2020-06-11 | 2020-09-01 | 辽宁省环保集团有限责任公司 | High-efficient anaerobic fermentation jar airtight formula end support agitating unit |
| CN114876700A (en) * | 2022-06-13 | 2022-08-09 | 大唐雅安电力开发有限公司 | Water turbine maintenance sealing method and device based on air sealing |
| CN114876700B (en) * | 2022-06-13 | 2024-02-13 | 大唐雅安电力开发有限公司 | Water turbine maintenance sealing method based on air sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20131013 |