CN205297816U - Terminal surface leak -stopping device of hydraulic turbine movable guide vane - Google Patents
Terminal surface leak -stopping device of hydraulic turbine movable guide vane Download PDFInfo
- Publication number
- CN205297816U CN205297816U CN201521122607.3U CN201521122607U CN205297816U CN 205297816 U CN205297816 U CN 205297816U CN 201521122607 U CN201521122607 U CN 201521122607U CN 205297816 U CN205297816 U CN 205297816U
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- CN
- China
- Prior art keywords
- guide vane
- movable guide
- terminal surface
- copper sheet
- stopping 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.)
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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
The utility model provides a terminal surface leak -stopping device of hydraulic turbine movable guide vane, relates to a terminal surface leak -stopping device of hydraulic turbine movable guide vane's design technical field. The utility model discloses a movable guide vane sets up four seal grooves under with respectively at the up end of movable guide vane on the terminal surface, set up rubber banding respectively in the bottom of every seal groove, set up the copper sheet in the seal groove of every rubber banding top, the outer terminal surface of copper sheet is a little more than the sealed notch of movable guide vane. The utility model has the advantages of simple and reasonable structure, easy maintenance, the volume of leaking that can make the movable guide vane can both be controlled in norm of an ideal encloses in earlier stage, the later stage of unit operation, the copper billet of leak -stopping device has from compensatory, weares and teares behind a fixed cycle at unit operation, copper sheet, change copper sheet and rubber strip can, need not handle the upper and lower plane of stator.
Description
Technical field
This utility model relates to the design field of the end face leak stoppage device of a kind of water turbine movable guide vane.
Background technology
The stator of the hydraulic turbine divides fixed guide vane, movable guide vane, and wherein, the effect of movable guide vane is used to guide and block current and regulate the flow by the hydraulic turbine. When movable guide vane is closed, unit is by out of service. The gap length of movable guide vane upper and lower end face, the end to end field of conjugate action, has specific requirement in the design specification of the hydraulic turbine, and gap length directly affects the size of the water amount of seepage of unit. This structure has the drawback that: for ensureing normally-open, the closedown of movable guide vane, prevent jam, generally leaving the gap of 0.3mm��0.6mm between the upper and lower end face of movable guide vane and top cover, base ring, along with the increase of unit runner diameter, gap, upper and lower end face also has the trend being gradually increased. Along with run the time elongated, the gap of stator can be gradually increased because of cavitation erosion, silt erosion, percolating water when stator is closed can exceed the requirement of 3 ��, particularly high water head unit, drainage is particularly severe, time serious, causing that unit can not realize normal shutdown by closedown movable guide vane, disintegration repair action stator needs to spend substantial amounts of manpower, financial resources.
Utility model content
This utility model purpose is in that for problem above, it is provided that the end face leak stoppage device of the water turbine movable guide vane of a kind of easy to maintenance, raising efficiency and product quality.
This utility model includes movable guide vane, is respectively provided with four seal grooves on the upper surface and lower surface of described movable guide vane; Being respectively provided with rubber bar in the bottom of each described seal groove, arrange copper sheet in the seal groove above described each rubber bar, the outer face of described copper sheet is slightly above the sealing notch of movable guide vane.
The width of the seal groove on this utility model movable guide vane upper and lower end face and the degree of depth must control, in rational scope, have tolerance; During installation, the groove bottom movable guide vane needs to apply glue, it is prevented that rubber strip, copper sheet come off in the process installed;After rubber strip and copper sheet load the groove portion of movable guide vane, copper sheet part because of exceeding in a free state should be greater than movable guide vane and the gap actual gap at least 0.5��0.8mm of top cover, base ring. This utility model compared with prior art, has the following advantages: 1) can effectively reduce the percolating water of movable guide vane upper and lower end face. 2) after copper sheet abrasion, it is not necessary to the upper and lower end face of movable guide vane is carried out soldering, grinding process, only need to change copper sheet, rubber strip, save patch work amount, save and economize maintenance cost, it is most important that, it is effectively reduced percolating water. This utility model is simple and reasonable, easy to maintenance, the water leakage early stage at unit operation of movable guide vane, later stage can be made can to control in the preferred range, the copper billet of leak stoppage device has self-compensating property, after unit operation, copper sheet may wear to some cycles, change copper sheet and rubber strip, it is not necessary to the lower planes of stator is processed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As it is shown in figure 1, include movable guide vane 1, the upper surface 1-1 and lower surface 1-2 of movable guide vane 1 are respectively provided with four seal grooves 2; Being respectively provided with rubber bar 3 in the bottom of each seal groove 2, arrange copper sheet 4 in the seal groove 2 above each rubber bar 3, the outer face of copper sheet 4 is slightly above the sealing notch of movable guide vane 1.
Claims (1)
1. the end face leak stoppage device of a water turbine movable guide vane, it is characterised in that: include movable guide vane, the upper surface and lower surface of described movable guide vane are respectively provided with four seal grooves; Being respectively provided with rubber bar in the bottom of each described seal groove, arrange copper sheet in the seal groove above described each rubber bar, the outer face of described copper sheet is slightly above the sealing notch of movable guide vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122607.3U CN205297816U (en) | 2015-12-31 | 2015-12-31 | Terminal surface leak -stopping device of hydraulic turbine movable guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122607.3U CN205297816U (en) | 2015-12-31 | 2015-12-31 | Terminal surface leak -stopping device of hydraulic turbine movable guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297816U true CN205297816U (en) | 2016-06-08 |
Family
ID=56469569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521122607.3U Active CN205297816U (en) | 2015-12-31 | 2015-12-31 | Terminal surface leak -stopping device of hydraulic turbine movable guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339187A (en) * | 2017-06-13 | 2017-11-10 | 国网新疆电力公司疆南供电公司 | Cavitation-preventive guide vanes of water turbine and cavitation-preventive water distributor |
| CN108506140A (en) * | 2018-03-28 | 2018-09-07 | 四川浩源机电有限责任公司 | A kind of water distributor that movable guide vane can be sealed reliably |
-
2015
- 2015-12-31 CN CN201521122607.3U patent/CN205297816U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339187A (en) * | 2017-06-13 | 2017-11-10 | 国网新疆电力公司疆南供电公司 | Cavitation-preventive guide vanes of water turbine and cavitation-preventive water distributor |
| CN107339187B (en) * | 2017-06-13 | 2023-08-18 | 国网新疆电力公司疆南供电公司 | Cavitation-preventing water turbine guide vane and cavitation-preventing water guide mechanism |
| CN108506140A (en) * | 2018-03-28 | 2018-09-07 | 四川浩源机电有限责任公司 | A kind of water distributor that movable guide vane can be sealed reliably |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |