CN218717222U - Large-scale hydraulic turbine volute structure - Google Patents
Large-scale hydraulic turbine volute structure Download PDFInfo
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- CN218717222U CN218717222U CN202222709271.7U CN202222709271U CN218717222U CN 218717222 U CN218717222 U CN 218717222U CN 202222709271 U CN202222709271 U CN 202222709271U CN 218717222 U CN218717222 U CN 218717222U
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- welt
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- lower liner
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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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Abstract
The utility model provides a large-scale hydraulic turbine spiral case structure, it includes welt structure, lower liner plate structure and outside welt structure, the edge of going up welt structure is connected that outside welt structure part centers on, welt structure is located the below of welt structure down to lie in outside welt structure and the space that last welt structure surrounds, the middle part of going up welt structure and lower liner plate structure is equipped with the circular space that is used for installing the hydraulic turbine runner respectively, goes up the welt structure and has the interval between the welt structure down and form the gyration rivers passageway that is used for the hydraulic turbine runner doing work. Through the structure, the installation and use requirements of the large axial-flow adjustable-pitch type water turbine generator set are met.
Description
Technical Field
The utility model relates to a technical field is made to large-scale hydraulic turbine spiral case, especially relates to a large-scale hydraulic turbine spiral case structure.
Background
5 generator sets are arranged in a workshop on the right bank of a certain hydro-junction and are provided with the largest domestic axial-flow propeller type water turbine generator set, and the capacity of a single machine is 200 megawatts. Because the maximum size of the volute is 32.6m multiplied by 30.5m multiplied by 16.5m (length multiplied by width multiplied by height), and the volute can not be integrally preassembled beyond the width (22 m) of a factory building and the lifting height (11 m) of a bridge crane, the large volute needs to be structurally designed, so that the large volute can meet the use requirement of the axial-flow adjustable-pitch type water turbine generator set.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the problem that exists among the above-mentioned background of the invention is solved, a large-scale hydraulic turbine spiral case structure is provided, through this structure, satisfies this large-scale axial compressor runner formula hydroelectric set's installation operation requirement.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the utility model provides a large-scale hydraulic turbine spiral case structure, it includes welt structure, lower liner plate structure and outside welt structure, the edge of going up welt structure is connected that outside welt structure part centers on, welt structure is located the below of welt structure down to lie in outside welt structure and the space that last welt structure surrounds, the middle part of going up welt structure and lower liner plate structure is equipped with the circular space that is used for installing the hydraulic turbine runner respectively, goes up the welt structure and has the interval between the welt structure down and form the gyration rivers passageway that is used for the hydraulic turbine runner doing work.
Go up the welt structure and include welt horizontal segment, go up welt conical section and last welt circular arc section, go up the welt horizontal segment and have the breach, go up the outward flange and the outside welt structural weld of welt horizontal segment, go up welt conical section and last welt circular arc section and be the loop configuration, go up the inward flange that welt conical section is located the welt horizontal segment, go up the outward flange of welt conical section and the inward flange welding of last welt horizontal segment, go up the inward flange of welt conical section and the outward flange welding of last welt circular arc section, go up welt conical section and last welt circular arc section and extend towards the lower welt structure.
The lower liner plate structure comprises a lower liner plate conical section, a lower liner plate circular arc section, a lower liner plate curved surface section a and a lower liner plate curved surface section b, the lower liner plate conical section is in a shape of a small cylinder with a notch, one end of the cylindrical side wall is wide, one end of the lower liner plate curved surface section a is connected to one side of the lower liner plate conical section, and the lower liner plate circular arc section is connected to the upper side of a lower liner plate conical section, the lower liner plate curved surface section a and the lower liner plate curved surface section b combination.
The outer side lining plate structure comprises an outer side lining plate a and an outer side lining plate b, the upper end of the outer side lining plate a is welded around the outer edge of the horizontal section of the upper lining plate from one side of the notch of the horizontal section of the upper lining plate, the upper end of the outer side lining plate b is welded on the other side of the notch of the horizontal section of the upper lining plate, and the lower end of the outer side lining plate b is welded at the end part of the curved section b of the lower lining plate.
The upper lining plate structure, the lower lining plate structure and the outer side lining plate structure are formed by processing and splicing a plurality of plate blanking materials respectively.
The utility model discloses there is following beneficial effect:
1. the middle parts of the upper lining plate structure and the lower lining plate structure are respectively provided with a circular space for installing a water turbine runner, a rotary water flow channel for applying work to the water turbine runner is formed at intervals between the upper lining plate structure and the lower lining plate structure, and the installation and use requirements of the large axial-flow Kaplan type water turbine generator set are met through the structure.
2. The upper liner plate structure, the lower liner plate structure and the outer side liner plate structure are formed by processing and splicing a plurality of plate blanking materials respectively, and the large-scale volute is manufactured in a block cutting forming mode, so that the manufacturing of the large-scale turbine volute is simpler and more convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the volute
Fig. 2 is a schematic view of another perspective three-dimensional structure of the overall structure of the volute of the present invention.
In the figure: the structure comprises an upper liner plate structure 1, an upper liner plate horizontal section 11, an upper liner plate conical section 12 and an upper liner plate circular arc section 13;
the structure comprises a lower liner plate structure 2, a lower liner plate conical section 21, a lower liner plate circular arc section 22, a lower liner plate curved surface section a23 and a lower liner plate curved surface section b24;
an outer liner structure 3, an outer liner a31, and an outer liner b32.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 and 2, a large-scale hydraulic turbine spiral case structure, it includes welt structure 1, lower welt structure 2 and outside welt structure 3, the edge of welt structure 1 is connected in that outside welt structure 3 part centers on, welt structure 2 is located the below of welt structure 1 down to be located outside welt structure 3 and the space that last welt structure 1 surrounds, the middle part of going up welt structure 1 and lower welt structure 2 is equipped with the circular space that is used for installing the hydraulic turbine runner respectively, goes up the interval formation between welt structure 1 and the lower welt structure 2 and is used for the gyration rivers passageway to the hydraulic turbine runner work. Through the structure, the installation and use requirements of the large axial flow adjustable paddle type water-turbine generator set are met.
Referring to fig. 1 and 2, the upper liner plate structure 1 includes upper liner plate horizontal segment 11, upper liner plate conical segment 12 and upper liner plate circular arc segment 13, the upper liner plate horizontal segment 11 has a breach, and the outward flange of upper liner plate horizontal segment 11 welds with outside liner plate structure 3, upper liner plate conical segment 12 and upper liner plate circular arc segment 13 are the loop configuration, and upper liner plate conical segment 12 is located the inward flange of upper liner plate horizontal segment 11, and the outward flange of upper liner plate conical segment 12 welds with the inward flange of upper liner plate horizontal segment 11, and the inward flange of upper liner plate conical segment 12 welds with the outward flange of upper liner plate circular arc segment 13, upper liner plate conical segment 12 and upper liner plate circular arc segment 13 extend towards lower liner plate structure 2. The water flow is guided to the generator rotating wheel through the upper liner plate conical section 12 and the upper liner plate circular arc section 13.
Referring to fig. 1 and 2, the lower liner plate structure 2 includes a lower liner plate conical section 21, a lower liner plate circular arc section 22, a lower liner plate curved surface section a23 and a lower liner plate curved surface section b24, the lower liner plate conical section 21 is a cylinder with a gap in the upper part and the lower part, one end of the cylinder side wall is wide, the other end is narrow, one end of the lower liner plate curved surface section a23 is connected to the wide side of the lower liner plate conical section 21, and the lower liner plate circular arc section 22 is connected to the upper side of the combination of the lower liner plate conical section 21, the lower liner plate curved surface section a23 and the lower liner plate curved surface section b 24. The lower liner plate structure 2 is a vortex structure, so that the volute has a larger water inlet and the end far away from the water inlet is narrower and narrower, thereby balancing the water flow, increasing the pressure of the water and guiding the water flow to the generator wheel through the lower liner plate arc segment 22.
Referring to fig. 1 and 2, the outer liner plate structure 3 includes an outer liner plate a31 and an outer liner plate b32, the upper end of the outer liner plate a31 is welded around the outer edge of the upper liner plate horizontal section 11 from the side of the notch of the upper liner plate horizontal section 11, the upper end of the outer liner plate b32 is welded to the other side of the notch of the upper liner plate horizontal section 11, and the lower end is welded to the end of the lower liner plate curved section b 24. The upper end of the outer liner plate b32 is welded on the other side of the gap of the horizontal section 11 of the upper liner plate, and the lower end is welded on the end part of the curved section b24 of the lower liner plate to form a part of the water inlet of the volute. The outer liner plate a31 also has a scroll structure corresponding to the lower liner plate structure 2.
Referring to fig. 1 and 2, the upper lining plate structure 1, the lower lining plate structure 2 and the outer lining plate structure 3 are respectively formed by blanking and splicing a plurality of plates. The large volute is manufactured in a block cutting and forming mode, so that the manufacturing of the large turbine volute is simpler and more convenient.
Claims (5)
1. A large-scale hydraulic turbine spiral case structure which characterized in that: it includes welt structure (1), lower welt structure (2) and outside welt structure (3), the edge of connection welt structure (1) that outside welt structure (3) part centers on, welt structure (2) are located the below of welt structure (1) down to lie in outside welt structure (3) and last welt structure (1) and surround the space in, the middle part of going up welt structure (1) and lower welt structure (2) is equipped with the circular space that is used for installing the hydraulic turbine runner respectively, goes up the gyration rivers passageway that interval formation is used for doing work to the hydraulic turbine runner between welt structure (1) and lower welt structure (2).
2. The large turbine volute structure of claim 1, wherein: go up welt structure (1) including last welt horizontal segment (11), go up welt conical section (12) and last welt circular arc section (13), go up welt horizontal segment (11) and have the breach, go up the outward flange and the welding of outside welt structure (3) of welt horizontal segment (11), go up welt conical section (12) and last welt circular arc section (13) and be the loop configuration, go up welt conical section (12) and be located the inward flange of welt horizontal segment (11), go up the outward flange of welt conical section (12) and the inward flange welding of last welt horizontal segment (11), go up the inward flange of welt conical section (12) and the outward flange welding of last welt circular arc section (13), go up welt conical section (12) and go up welt circular arc section (13) and extend towards welt structure (2) down.
3. The large turbine volute structure of claim 1, wherein: lower liner plate structure (2) include lower liner plate cone section (21), lower liner plate circular arc section (22), lower liner plate curved surface section a (23) and lower liner plate curved surface section b (24), lower liner plate cone section (21) is big-end-down's tube-shape that has the breach, and the wide one end of tube-shape lateral wall one end is narrow, and the one end of lower liner plate curved surface section a (23) is connected in the wide one side of lower liner plate cone section (21), lower liner plate curved surface section a (23) and the upside of lower liner plate curved surface section b (24) combination body are connected in lower liner plate cone section (21), lower liner plate curved surface section a (22).
4. The large turbine volute structure of claim 1, wherein: the outer side lining plate structure (3) comprises an outer side lining plate a (31) and an outer side lining plate b (32), the upper end of the outer side lining plate a (31) is welded around the outer edge of the upper lining plate horizontal section (11) from one side of the notch of the upper lining plate horizontal section (11), the upper end of the outer side lining plate b (32) is welded on the other side of the notch of the upper lining plate horizontal section (11), and the lower end of the outer side lining plate b (32) is welded at the end part of the lower lining plate curved section b (24).
5. The large turbine volute structure of claim 1, wherein: the upper lining plate structure (1), the lower lining plate structure (2) and the outer side lining plate structure (3) are formed by processing and splicing a plurality of plate blanking materials respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222709271.7U CN218717222U (en) | 2022-10-14 | 2022-10-14 | Large-scale hydraulic turbine volute structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222709271.7U CN218717222U (en) | 2022-10-14 | 2022-10-14 | Large-scale hydraulic turbine volute structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717222U true CN218717222U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222709271.7U Active CN218717222U (en) | 2022-10-14 | 2022-10-14 | Large-scale hydraulic turbine volute structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717222U (en) |
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2022
- 2022-10-14 CN CN202222709271.7U patent/CN218717222U/en active Active
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