CN217481445U - Flange device for water turbine - Google Patents
Flange device for water turbine Download PDFInfo
- Publication number
- CN217481445U CN217481445U CN202221324015.XU CN202221324015U CN217481445U CN 217481445 U CN217481445 U CN 217481445U CN 202221324015 U CN202221324015 U CN 202221324015U CN 217481445 U CN217481445 U CN 217481445U
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- China
- Prior art keywords
- flange plate
- flange
- ring flange
- top cap
- outer protection
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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 flange device for hydraulic turbine. Hydroelectric set is when the operation, and top cap pressure can increase, generally carries out the drainage pressure release through top cap decompression drainage, to the great diversion formula power station of silt content, top cap decompression drain pipe way will face the serious problem of erosion. A flange device for a hydraulic turbine, the composition of which comprises: the outer protection ring flange (1) and top cap ring flange (2), outer protection ring flange and top cap ring flange pass through bolt (3) fixed connection, and the outer protection ring flange is seted up wash port (4) that the diameter is the same with the centre of a circle of top cap ring flange, sets up threaded hole (5) of a set of semi-enclosed construction on the outer protection ring flange, and this threaded hole corresponds each other with the through hole on the top cap ring flange, and the bolt passes the through hole on the top cap ring flange and is connected with the threaded hole on the outer protection ring flange. The utility model discloses be applied to the hydroelectric generation field.
Description
Technical Field
The utility model relates to a flange device for hydraulic turbine.
Background
Hydroelectric set is when the operation, and top cap pressure can increase, generally carries out the drainage pressure release through top cap decompression drainage, to the great diversion formula power station of silt content, top cap decompression drain pipe way will face the serious problem of erosion, leads to decompression drain pipe way to leak, can cause the water logging factory building when serious. The top cover pressure reduction drain pipe is generally of a plane flange structure at the top cover, after the top cover pressure reduction drain pipe is used for a long time, the flange connection part is eroded and washed through, the flange connection part is not convenient to process, and a new flange device is designed aiming at the condition.
Disclosure of Invention
The utility model aims at providing a flange device for hydraulic turbine.
The above purpose is realized by the following technical scheme:
a flange device for a hydraulic turbine, the composition of which comprises: the outer protection flange plate is fixedly connected with the top cover flange plate through bolts, the centers of circles of the outer protection flange plate and the top cover flange plate are provided with drain holes with the same diameter, a group of threaded holes of semi-closed structures are formed in the outer protection flange plate, the threaded holes correspond to the through holes in the top cover flange plate, and the bolts penetrate through the through holes in the top cover flange plate and are connected with the threaded holes in the outer protection flange plate;
the outer protecting flange plate is provided with a packing groove with an annular structure, and a sealing filler matched with the packing groove is arranged in the packing groove;
the outer protection ring flange on have annular protruding structure, annular protruding structure and outer protection ring flange structure as an organic whole, annular protruding structure insert in top cap ring flange top convex surface position department form the stagnant water structure.
The flange device for the water turbine, the diameter of outer protection ring flange be 190mm, outer protection ring flange on the groove depth of packing groove be 3.1mm, the groove width be 5.3 mm.
The flange device for the water turbine is characterized in that the depth of a threaded hole in the outer protecting flange plate is 25mm, and the outer diameter of the outer protecting flange plate with the annular protruding structure is 136 mm.
The utility model has the advantages that:
1. the utility model discloses be provided with outer flange dish on the top cap ring flange, fixed connection between with top cap ring flange and the outer flange dish through the bolt, wherein the convex surface on top inserts in the protruding structure of annular on outer flange dish, make and form stagnant water structure between top cap ring flange and the outer flange dish, the effect of stagnant water is played, set up the packing groove of annular structure simultaneously on outer flange dish, it seals to install sealing filler in the packing groove, install outer flange dish additional on original top cap flange, set outer flange dish to unsmooth type, through increasing concave surface area of contact and packing groove, increase the erosion life-span of part, the non-through hole is designed into to the flange bolt hole simultaneously, the flange bottom can directly weld with the top cap, avoid the bolt to be not convenient for the problem of fastening.
2. The utility model discloses a change new outer flange device, solve the problem that former flange exists, prevent that flange joint from washout and dashing and wearing. After a new flange device is replaced, the erosion problem of the top cover flange is relieved, and the using effect is good at present.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the outer protective flange.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a schematic view of the construction of the top cover flange.
In the figure: 1. the sealing structure comprises an outer protection flange 2, a top cover flange 3, bolts 4, drain holes 5, threaded holes 6, packing grooves 7, sealing fillers 8 and an annular bulge structure.
The specific implementation mode is as follows:
example 1:
the utility model provides a flange device for hydraulic turbine which constitutes includes: the outer protection flange plate is fixedly connected with the top cover flange plate through bolts 3, the circle centers of the outer protection flange plate and the top cover flange plate are provided with drain holes 4 with the same diameter, the outer protection flange plate is provided with a group of semi-closed threaded holes 5, the threaded holes correspond to through holes in the top cover flange plate, and the bolts penetrate through the through holes in the top cover flange plate and are connected with the threaded holes in the outer protection flange plate; the outer protecting flange plate is provided with a packing groove 6 with an annular structure, and a sealing filler 7 matched with the packing groove is arranged in the packing groove; the outer flange plate on have annular protruding structure 8, annular protruding structure and outer flange plate structure as an organic whole, annular protruding structure insert the convex surface position department on top cap flange plate top and form the stagnant water structure.
Example 2:
according to the flange device for the water turbine in embodiment 1, the diameter of the outer protecting flange plate is 190mm, the groove depth of the root groove on the outer protecting flange plate is 3.1mm, and the groove width is 5.3 mm.
Example 3:
according to the flange device for the water turbine in embodiment 1 or 2, the hole depth of the threaded hole in the outer protecting flange plate is 25mm, and the outer diameter of the annular protruding structure on the outer protecting flange plate is 136 mm.
The diameter and the spatial position of the top cover are measured, a flange device in a design drawing is combined with a top cover structure, a processing factory is used for processing and manufacturing, the top cover body is welded on site, and a full thread bolt is arranged.
Claims (3)
1. A flange device for a hydraulic turbine, the composition of which comprises: outer flange dish and top cap flange dish, characterized by: the outer protecting flange plate is fixedly connected with the top cover flange plate through bolts, the circle centers of the outer protecting flange plate and the top cover flange plate are provided with drain holes with the same diameter, a group of threaded holes of semi-closed structures are formed in the outer protecting flange plate, the threaded holes correspond to the through holes in the top cover flange plate, and the bolts penetrate through the through holes in the top cover flange plate and are connected with the threaded holes in the outer protecting flange plate;
the outer protecting flange plate is provided with a packing groove with an annular structure, and a sealing filler matched with the packing groove is arranged in the packing groove;
the outer flange plate on have annular protruding structure, annular protruding structure and outer flange plate structure as an organic whole, annular protruding structure insert the convex surface position department on top cap flange plate top and form stagnant water structure.
2. The flange device for a hydraulic turbine according to claim 1, wherein: the diameter of the outer protective flange plate is 190mm, the groove depth of the root groove on the outer protective flange plate is 3.1mm, and the groove width is 5.3 mm.
3. The flange device for a hydraulic turbine according to claim 1, wherein: the hole depth of the threaded hole in the outer protecting flange plate is 25mm, and the outer diameter of the annular convex structure on the outer protecting flange plate is 136 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324015.XU CN217481445U (en) | 2022-05-30 | 2022-05-30 | Flange device for water turbine |
| ZA2023/05543A ZA202305543B (en) | 2022-05-30 | 2023-05-23 | Flange device for a water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324015.XU CN217481445U (en) | 2022-05-30 | 2022-05-30 | Flange device for water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217481445U true CN217481445U (en) | 2022-09-23 |
Family
ID=83313655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221324015.XU Active CN217481445U (en) | 2022-05-30 | 2022-05-30 | Flange device for water turbine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217481445U (en) |
| ZA (1) | ZA202305543B (en) |
-
2022
- 2022-05-30 CN CN202221324015.XU patent/CN217481445U/en active Active
-
2023
- 2023-05-23 ZA ZA2023/05543A patent/ZA202305543B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202305543B (en) | 2023-08-30 |
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| GR01 | Patent grant |