CN201461194U - Water turbine sealing structure with servomotor cylinder and runner hub core - Google Patents
Water turbine sealing structure with servomotor cylinder and runner hub core Download PDFInfo
- Publication number
- CN201461194U CN201461194U CN2009200973763U CN200920097376U CN201461194U CN 201461194 U CN201461194 U CN 201461194U CN 2009200973763 U CN2009200973763 U CN 2009200973763U CN 200920097376 U CN200920097376 U CN 200920097376U CN 201461194 U CN201461194 U CN 201461194U
- Authority
- CN
- China
- Prior art keywords
- ring
- servomotor cylinder
- water turbine
- hub core
- runner hub
- 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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- 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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- Gasket Seals (AREA)
- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a water turbine sealing structure with a servomotor cylinder and a runner hub core, which comprises a servomotor cylinder and a runner hub core; a guide sleeve is arranged between the servomotor cylinder and the runner hub core; and the side surface of the servomotor cylinder, which is contacted with the runner hub core, is provided with a groove used for installing a sealing ring. The water turbine sealing structure is characterized in that the groove is internally provided with an axial stepped gasket formed by a polytetrafluoroethylene ring and an O-type seal rubber ring. The water turbine sealing structure has the advantages that the polytetrafluoroethylene ring is used as a main friction piece, the O-type seal rubber ring can supply enough sealing pre-tightening force and compensate for abrasion of the polytetrafluoroethylene ring, thus prolonging the service life of the sealing ring, therefore, oil pumping between the runner hub core and the servomotor cylinder can be avoided by adopting the combined two-ring axial stepped gasket, which further guarantees normal running of the water turbine.
Description
Technical field
The utility model belongs to hydraulic turbine generator and makes the field, particularly relates to the fitting tight structure of a kind of water turbine servomotor cylinder and web core.
Background technique
Web is as the core component of water wheels unit, oil pressure in the servomotor cylinder in the web directly has influence on the operation of whole unit, and the sealability of servomotor cylinder is the key that guarantees the size of oil pressure in the servomotor cylinder, therefore, the sealing between web core and the servomotor cylinder also is very important.All adopt rubber seal at traditional web and the sealing between the servomotor cylinder, because rubber seal is worn and torn easily, working life is short, causes often occurring in web and the servomotor cylinder scurrying oily phenomenon, and then the operation of water turbine is affected.
Summary of the invention
The utility model provides a kind of simple in structure, wear-resisting and the water turbine servomotor cylinder of good seal performance and the sealing configuration of web core for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the sealing configuration of water turbine servomotor cylinder and web core, comprise servomotor cylinder and web core, between servomotor cylinder and web core, guide sleeve is housed, with the contacted servomotor cylinder of web core side on have the groove that is used to install seal ring, it is characterized in that: described groove is built-in with the axle stair ring that polytetrafluoroethylene ring and O type sealing rubber ring are formed.
The utility model can also adopt following technological scheme:
At least be provided with twice axle stair ring on described and the contacted servomotor cylinder of the web core side.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, between web core and servomotor cylinder, be provided with the axle stair ring that twice are made up of polytetrafluoroethylene ring and O type sealing rubber ring at least, like this by the main friction member of polytetrafluoroethylene ring conduct, O type sealing rubber ring can provide enough sealing pretightening forces, and the abrasion of polytetrafluoroethylene ring are played compensating action, prolonged the working life of seal ring, therefore the twice axle that adopts combinations thereof can solve the oily phenomenon of scurrying between web core and the servomotor cylinder with stair ring, and then has guaranteed the normal operation of water turbine.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, guide sleeve; 2, axle stair ring; 2-1, polytetrafluoroethylene ring; 2-2, O type sealing rubber ring; 3, servomotor cylinder; 4, web core.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the sealing configuration of water turbine servomotor cylinder and web core, comprise servomotor cylinder 3 and web core 4, between servomotor cylinder and web core top, guide sleeve 1 is housed, with web core 4 contacted servomotor cylinder sides on have two grooves that are used to install seal ring at least, its groove be built-in with axle that polytetrafluoroethylene ring 2-1 and O type sealing rubber ring 2-2 form with stair ring 2. wherein polytetrafluoroethylene ring 2-1 be fitted on the O type sealing rubber ring 2-2, polytetrafluoroethylene ring is mainly as friction member, O type sealing rubber ring can provide enough sealing pretightening forces, and the abrasion of polytetrafluoroethylene ring are played compensating action, therefore the twice axle that adopts combinations thereof can solve the oily phenomenon of scurrying between web core and the servomotor cylinder with stair ring, and then has guaranteed the normal operation of water turbine.
Claims (2)
1. the sealing configuration of water turbine servomotor cylinder and web core, comprise servomotor cylinder and web core, between servomotor cylinder and web core, guide sleeve is housed, with the contacted servomotor cylinder of web core side on have the groove that is used to install seal ring, it is characterized in that: described groove is built-in with the axle stair ring that polytetrafluoroethylene ring and O type sealing rubber ring are formed.
2. the sealing configuration of water turbine servomotor cylinder according to claim 1 and web core is characterized in that: be provided with twice axle stair ring at least on described and the contacted servomotor cylinder of the web core side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973763U CN201461194U (en) | 2009-06-29 | 2009-06-29 | Water turbine sealing structure with servomotor cylinder and runner hub core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973763U CN201461194U (en) | 2009-06-29 | 2009-06-29 | Water turbine sealing structure with servomotor cylinder and runner hub core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461194U true CN201461194U (en) | 2010-05-12 |
Family
ID=42388548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200973763U Expired - Fee Related CN201461194U (en) | 2009-06-29 | 2009-06-29 | Water turbine sealing structure with servomotor cylinder and runner hub core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485959A (en) * | 2013-10-14 | 2014-01-01 | 国家电网公司 | Sealing device of servomotor lock end cover |
| CN111963617A (en) * | 2020-07-09 | 2020-11-20 | 北方民族大学 | Electromechanical device damping device |
-
2009
- 2009-06-29 CN CN2009200973763U patent/CN201461194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485959A (en) * | 2013-10-14 | 2014-01-01 | 国家电网公司 | Sealing device of servomotor lock end cover |
| CN103485959B (en) * | 2013-10-14 | 2015-11-11 | 国家电网公司 | Servomotor lock ingot end cover sealing device |
| CN111963617A (en) * | 2020-07-09 | 2020-11-20 | 北方民族大学 | Electromechanical device damping device |
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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: 20100512 Termination date: 20120629 |