CN202732195U - Movable guide vane structure with big discs on two sides of guide vane - Google Patents
Movable guide vane structure with big discs on two sides of guide vane Download PDFInfo
- Publication number
- CN202732195U CN202732195U CN2012204301555U CN201220430155U CN202732195U CN 202732195 U CN202732195 U CN 202732195U CN 2012204301555 U CN2012204301555 U CN 2012204301555U CN 201220430155 U CN201220430155 U CN 201220430155U CN 202732195 U CN202732195 U CN 202732195U
- Authority
- CN
- China
- Prior art keywords
- guide vane
- lower shaft
- movable guide
- diffuser
- sides
- 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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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a movable guide vane structure with big discs on two sides of a guide vane and is applied to a water guide mechanism of a water turbine. The movable guide vane structure comprises the guide vane, a middle shaft and a lower shaft, wherein the middle shaft and the lower shaft are integrally arranged on two sides of the guide vane. The movable guide vane structure is characterized in that a big disc I and a big disc II sharing the same central axis with the middle shaft and the lower shaft are respectively fixedly added between the guide vane and the middle shaft and between the guide vane and the lower shaft, each big disc is continuously and smoothly transitioned to be tangent to the surface of the guide vane from a border. The movable guide vane structure has the advantages that abrasion of a matching portion of a top cover and a bottom ring is greatly alleviated, service lives of the top cover and the bottom ring are prolonged, water leakage caused by increasing abrasion is effectively avoided, utilization rate of sand-contained water power resource is improved, and benefit of a power station is remarkably increased.
Description
Technical field
The utility model relates to the movable guide vane structure of diffuser both sides band big disk, is applied to the water distributor of water turbine.
Background technique
China is vast in territory, and the waterpower resourses that are richly stored with occupy first place, the world.But silt content of river is very high, the Yellow River especially, and at present, the Changjiang river also becomes fully-loaded stream, and other each great river sediment discharge also increases gradually.China is monsoon climate country in addition, when annual discharge of river amount is large, waterpower resourses abundant season namely, the carry under one's arms content of silt of river also increases thereupon, these just cause each water power plant sand erosion especially severe, according to incompletely statistics, the abrasion that the Hydropower Plant that China is in operation has nearly 40% water turbine just bearing in various degree destroys, and it has become a hydroelectric power department important technology difficult problem anxious to be resolved.
In the structural design of high concentration of sediment power station unit, some move the power station that good structure can not adapt to high concentration of sediment fully in the clear water power station; Movable guide vane in the turbine gate mechanism is a very crucial and important part, often will rotate in the running of unit, regulates the load of unit with this.Therefore, the quality of movable guide vane structural design is to playing vital effect in working life of unit.
In the structural design of current activity stator the both sides of movable guide vane body only have one section very little the transition circle cylinder with in, the Lower shaft sleeve position links to each other, have clear-cut directly just with in, the Lower shaft sleeve position links to each other, there is not changeover portion, such structure will make the grains of sand be easy to just enter into the matching part of movable guide vane and top cover and base ring, to wearing and tearing, thereby greatly shortened working life of movable guide vane, top cover and base ring three here.
Summary of the invention
The purpose of this utility model provides a kind of difficulty that the grains of sand enter the matching part of top cover and base ring that increases, and reduces the movable guide vane structure to the diffuser both sides band big disk of matching part wearing and tearing.
The utility model can be realized by following technical proposals: the movable guide vane structure of diffuser both sides band big disk comprises diffuser and integrated axis and the lower shaft that is connected to the diffuser both sides respectively; It is characterized in that between diffuser and axis increase respectively and fix big disk I and a big disk II with axis, the concentricity axis of lower shaft, every big disk is transitioned into the diffuser surface tangent continuously, glossily from the edge between diffuser and lower shaft.
The utlity model has following advantage:
Greatly delay the wearing and tearing of the matching part of top cover and base ring, prolonged the working life of top cover and base ring.Effectively avoided having improved the utilization ratio that contains husky waterpower resourses because wear extent strengthens the leakage water yield that causes, increased significantly the benefit in power station.
Description of drawings
Accompanying drawing 1 is the utility model plan view.
1 is axis among the figure, the 3rd, and diffuser, the 5th, lower shaft, the 7th, big disk II, the 9th, big disk I.
Fig. 2 is the plan view that Fig. 1 is.
1 is axis among the figure, the 3rd, and diffuser, the 5th, lower shaft, the 7th, big disk II, the 9th, big disk I.
Fig. 3 is the right elevation after Fig. 1 removes lower shaft.
3 is diffusers among the figure, the 7th, and the big disk II.
Fig. 4 is the left view after Fig. 1 removes axis.
3 is diffusers among the figure, the 9th, and the big disk I.
Embodiment
The utility model is further described below in conjunction with accompanying drawing.The movable guide vane structure of diffuser both sides band big disk comprises diffuser (3) and integrated axis (1) and the lower shaft (5) that is connected to the diffuser both sides respectively.Improvements of the present utility model are between diffuser (3) and axis (1), increase respectively between diffuser (3) and lower shaft (5) and fix big disk I (9) and a big disk II (7) with axis, the concentricity axis of lower shaft, every big disk is transitioned into the diffuser surface tangent from the edge continuously, glossily.
In use, the utility model is installed vertically, and axis (1) is upper, and lower shaft (5) is lower, and diffuser (3) places mobile water.Because the water that flows passes through between big disk I (9) and big disk II (7), silt because of the effect on continuous again smooth surface between two big disks from radially the flying out of two big disk discs, effectively stoped silt to do axial motion.Thereby avoided installing equipment of the present utility model mutually the position of closing being subject to the erosion that circulating water is held the silt of wrapping up in and coming under the arm with axis (1), lower shaft (5), prolonged the working life of top cover and base ring.Avoid leaking of the heel and toe wear that causes because of soil erosion, improved the utilization ratio that contains husky waterpower resourses, increased significantly the benefit in power station.
Claims (1)
1. the movable guide vane structure of diffuser both sides band big disk comprises diffuser (3) and integrated axis (1) and the lower shaft (5) that is connected to the diffuser both sides respectively; It is characterized in that between diffuser (3) and axis (1), increase respectively between diffuser (3) and lower shaft (5) and fix big disk I (9) and a big disk II (7) with axis, the concentricity axis of lower shaft, every big disk is transitioned into the diffuser surface tangent from the edge continuously, glossily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204301555U CN202732195U (en) | 2012-08-27 | 2012-08-27 | Movable guide vane structure with big discs on two sides of guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204301555U CN202732195U (en) | 2012-08-27 | 2012-08-27 | Movable guide vane structure with big discs on two sides of guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732195U true CN202732195U (en) | 2013-02-13 |
Family
ID=47657903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204301555U Expired - Fee Related CN202732195U (en) | 2012-08-27 | 2012-08-27 | Movable guide vane structure with big discs on two sides of guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732195U (en) |
Cited By (1)
| 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 |
-
2012
- 2012-08-27 CN CN2012204301555U patent/CN202732195U/en not_active Expired - Fee Related
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 |
| 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 |
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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: 20130213 Termination date: 20140827 |
|
| EXPY | Termination of patent right or utility model |