CN205445880U - Vertical mixed -flow hydroelectric set structure - Google Patents
Vertical mixed -flow hydroelectric set structure Download PDFInfo
- Publication number
- CN205445880U CN205445880U CN201521122315.XU CN201521122315U CN205445880U CN 205445880 U CN205445880 U CN 205445880U CN 201521122315 U CN201521122315 U CN 201521122315U CN 205445880 U CN205445880 U CN 205445880U
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- CN
- China
- Prior art keywords
- thrust collar
- diameter
- turbine
- runner
- guide bearing
- 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 provides a vertical mixed -flow hydroelectric set structure, sends out motor spindle and passes through flange joint with hydraulic turbine main shaft including motor spindle and the hydraulic turbine main shaft that set up from top to bottom, and hydraulic turbine lower part is equipped with turbine guide bearing, sends out the motor spindle upper end and is equipped with the thrust collar, and the thrust collar includes upper portion and lower part, and the diameter of thrust collar lower part is greater than the diameter on thrust collar upper portion, and the outside of thrust collar lower part is equipped with upper guide bearing, and the downside of thrust collar lower part is equipped with thrust bearing. The utility model discloses vertical mixed -flow hydroelectric set structure's shafting adopts two dot structures on the two sections axles, has shortened main shaft shafting length, has removed lower guide bearing, sets up upper guide bearing in the thrust collar lower part outside to make the distance between upper guide bearing and the turbine guide bearing shorten, the effectual stability that improves the structure, successful completion the transformation organized of present horizontal hydrogenerator, improved unit efficiency.
Description
Technical field
This utility model relates to a kind of Francis hydroturbine generator set structure, particularly relates to a kind of vertical Francis formula turbine-generator units structure.
Background technology
Nowadays in many areas particularly in Europe, much having run horizontal many fulcrums turbine-generator units for many years there is potential safety hazard because equipment is old, in order to ensure safety potentiation dilatation, the horizontal many fulcrums turbine-generator units by these are old is needed to transform vertical hydropower generator as.Existing vertical hydropower generator includes generator shaft setting up and down and hydraulic turbine main shaft, generator shaft upper end is provided with thrust collar, thrust collar is provided with top guide bearing and thrust bearing, generator shaft bottom is provided with lower guide bearing, hydraulic turbine main shaft bottom is provided with water pilot bearing, the load of vertical direction is born by thrust bearing, and generator shaft coordinates the throw limiting whole rotating part with thrust collar.Top guide bearing, lower guide bearing and water pilot bearing act on jointly, it is ensured that the concentricity of whole rotating part.Top guide bearing, lower guide bearing and water pilot bearing these three journal bearing and a thrust bearing interact, it is ensured that the operation that shaft system of unit is safe and stable.Owing to existing vertical hydropower generator principle axis shafting is longer, above-mentioned horizontal many fulcrums turbine-generator units is limited by former factory building height when transforming vertical hydropower generator as, need to shorten main axis length, but, after main shaft shortens, due to the restriction in space, need to remove lower guide bearing, and after removing lower guide bearing, the stability of structure will be affected.Meanwhile, existing vertical hydrogenerator on tear structure open, flow passage components could upwards lift by crane after the most whole shaft system of unit outside transport cheats to machine after needing to dismantle bearing and main shaft seal, waste time and energy, reduce the work efficiency of unit during maintenance.
Utility model content
The purpose of this utility model is to provide a kind of principle axis shafting shorter and the vertical Francis formula turbine-generator units structure of good stability.
The purpose of this utility model is realized in, a kind of vertical Francis formula turbine-generator units structure, including electromotor and the hydraulic turbine and setting up and down, generator shaft and hydraulic turbine main shaft are by Flange joint, and hydraulic turbine bottom is provided with water pilot bearing, and generator shaft upper end is provided with thrust collar, thrust collar includes upper and lower, the diameter of thrust collar bottom is more than the diameter on thrust collar top, and the outside of thrust collar bottom is provided with top guide bearing, and the downside of thrust collar bottom is provided with thrust bearing.In this technical scheme, in order to adapt to existing factory building height, shorten principle axis shafting length, eliminate lower guide bearing, top guide bearing is arranged on thrust collar lower outside, so that the Distance Shortened between top guide bearing and water pilot bearing, effectively raises the stability of structure.
Thrust collar bottom is provided with oilhole.Owing to thrust collar lower diameter is more than thrust collar upper diameter so that the import and export oil pressure difference of oilhole increases, so that oil circulation is the most abundant, increases the bearing capacity of top guide bearing and thrust bearing, it can be ensured that generating set stable operation.
Thrust collar lower diameter is 1200mm, and the diameter on thrust collar top is 870mm.
For the ease of dismantling from below, above-mentioned hydraulic turbine main shaft lower end connect have runner, runner to be arranged over runner crown seal, runner crown seal be arranged over top cover and roof inner shield, top cover is arranged on seat ring；Runner lower outer is provided with base ring and base ring backplate, is sequentially provided with runner band seal, epimere Taper Pipe and hypomere Taper Pipe, arranges stator between base ring backplate and roof inner shield below base ring.
For the ease of dismantling more parts from below, base ring is bolted on seat ring, and seat ring inner edge diameter is more than base ring, stator and the external profile diameter of base ring backplate.
In order to make more multithread parts dismantle from below, seat ring inner edge diameter is more than roof inner shield, top cover runner flange and the external profile diameter of runner crown seal.
Outside the parts transport of dismounting is cheated to machine, it is provided with down below the hydraulic turbine and tears passage open.
This utility model has the advantages that
1. the axle system of this utility model vertical Francis formula turbine-generator units structure uses two sections of axle two fulcrum structures, shorten principle axis shafting length, eliminate lower guide bearing, top guide bearing is arranged on thrust collar lower outside, so that the Distance Shortened between top guide bearing and water pilot bearing, effectively raise the stability of structure, successfully complete the transformation of existing horizontal hydrogenerator group, improve unit efficiency.
2, in this utility model vertical Francis formula turbine-generator units structure, oilhole is arranged at thrust collar bottom, diameter due to thrust collar bottom is more than the diameter on thrust collar top, the import and export oil pressure difference making oilhole increases, so that oil circulation is the most abundant, increase the bearing capacity of top guide bearing and thrust bearing, it can be ensured that generating set stable operation.
3, this utility model vertical Francis formula turbine-generator units structure tears structure open under being, cross stream parts the most all to dismantle from bottom, and tear open under passing through passage transport to machine cheat outside, the most of parts avoiding prior art existence must dismantle the complex operations brought from top, not only convenient disassembly, and use manpower and material resources sparingly, shorten the time between overhauls(TBO) simultaneously, improve production efficiency.
4. this utility model vertical Francis formula turbine-generator units structure can realize stream parts from installed below, easy to operate, also allows for Maintenance and Repair simultaneously.
5, this utility model overcomes existing horizontal horizontal hydrogenerator group and transform a difficult problem for vertical Francis formula turbine-generator units structure as.Relative to transform plant, drastically reduce the area input cost, and shorten the construction period, save human and material resources and the financial resources of engineering construction.
6, this utility model vertical Francis formula turbine-generator units simple in construction, low cost.
Accompanying drawing explanation
Fig. 1 is this utility model vertical Francis formula turbine-generator units structural representation；
Fig. 2 is that the electromotor in this utility model vertical Francis formula turbine-generator units structure arranges schematic diagram with the hydraulic turbine；
Fig. 3 be in this utility model vertical Francis formula turbine-generator units structure under tear structural representation open；
Fig. 4 is Fig. 3 partial enlarged drawing.
In figure, 1. thrust collar, 2. top guide bearing, 3. thrust bearing, 4. generator shaft, 5. hydraulic turbine main shaft, 6. water pilot bearing, 7. oilhole, 8. electromotor, 9. inlet valve, the 10. hydraulic turbine, 11. hypomere Taper Pipes, 12. epimere Taper Pipes, 13. runner band seals, 14. runners, 15. base rings, 16. stators, 17. base ring backplates, 18. roof inner shields, 19. top covers, 20. runner crown seal, tear passage open under 21. seat ring .22..
Detailed description of the invention
Embodiment, a kind of vertical Francis formula turbine-generator units structure, including electromotor 8 and the hydraulic turbine 10 and setting up and down, generator shaft 4 and hydraulic turbine main shaft 5 pass through Flange joint, hydraulic turbine main shaft 5 bottom is provided with water pilot bearing 6, and generator shaft 4 upper end is provided with thrust collar 1, and the diameter of thrust collar 1 bottom is more than the diameter on thrust collar 1 top, the outside of thrust collar 1 bottom is provided with top guide bearing 2, and the downside of thrust collar 1 bottom is provided with thrust bearing 3.Thrust collar 1 bottom is provided with oilhole 7.
In the present embodiment, thrust collar 1 lower diameter is 1200mm, and the diameter on thrust collar 1 top is 870mm.
In the present embodiment, the load of the vertical direction of turbine-generator units is born by the thrust bearing 3 being connected to generator unit stator, and thrust bearing 3 guarantees concentricity and the depth of parallelism of two binding faces with the high precision apparatus Precision Machining that fits through of thrust collar 1.And the concentricity controlling rotating part is attached to the top guide bearing 2 of electromotor upper spider and is connected to the water pilot bearing 6 of hydrodynamic bearing support, few one of this structure more conventional set structure fulcrum, install and easy to maintenance, but the radial force of each fulcrum can be increased, suitably increase to guarantee that there are enough intensity and rigidity in axle system on the basis of conventional shaft system diameter selects during shafting design, meet the demand of the safe and stable operation of shaft system of unit.
Hydraulic turbine main shaft 5 bottom connect runner 14, runner 14 is arranged over runner crown seal 20, runner crown seal 20 be arranged over top cover 19 and roof inner shield 18, top cover 19 is arranged on seat ring 21；Runner 14 lower outer is provided with base ring 15 and base ring backplate 17, is sequentially provided with runner band seal 13, epimere Taper Pipe 12 and hypomere Taper Pipe 11, arranges stator 16 between base ring backplate 17 and roof inner shield 18 below base ring 15.Base ring 15 is bolted on seat ring 21, and seat ring 21 inner edge diameter is more than base ring 15, stator 16 and the external profile diameter of base ring backplate 17.Seat ring 21 inner edge diameter is more than roof inner shield 18, top cover runner flange and the external profile diameter of runner crown seal 20.The lower section of the hydraulic turbine 10 is provided with down tears passage 22 open.
Owing to electromotor is on hydraulic turbine top, the hydraulic turbine and gen-set are intended in vertical direction lift by crane out Generator pier.But transform plant, improve factory building height require a great deal of time, manpower and financial resources, have a strong impact on input and the economy in whole power station.In the present embodiment, spindle of hydroelectric generator set uses two sections of axle two fulcrum structures, decrease principle axis shafting length, the few journal bearing fulcrum of two sections of axle three fulcrum structures of more conventional vertical Francis formula turbine-generator units axle system, but unit can be met and do not reconstruct the requirement of genuine room and safe and stable operation.Arranging down below the hydraulic turbine and tear passage open, the hydraulic turbine tears structure open under using, and numerous flow passage components can be torn open outside passage transport cheats to machine under dismantling downwards and passing through, can repair and maintenance water turbine overflowing component conveniently and efficiently.
Claims (7)
1. a vertical Francis formula turbine-generator units structure, it is characterized in that: include electromotor (8) and the hydraulic turbine (10) and setting up and down, generator shaft (4) and hydraulic turbine main shaft (5) pass through Flange joint, hydraulic turbine main shaft (5) bottom is provided with water pilot bearing (6), generator shaft (4) upper end is provided with thrust collar (1), the diameter of described thrust collar (1) bottom is more than the diameter on thrust collar (1) top, the outside of described thrust collar (1) bottom is provided with top guide bearing (2), and the downside of described thrust collar (1) bottom is provided with thrust bearing (3).
2. vertical Francis formula turbine-generator units structure as claimed in claim 1, it is characterised in that: described thrust collar (1) bottom is provided with oilhole (7).
3. vertical Francis formula turbine-generator units structure as claimed in claim 2, it is characterised in that: described thrust collar (1) lower diameter is 1200mm, and the diameter on described thrust collar (1) top is 870mm.
4. the vertical Francis formula turbine-generator units structure as described in any one of claim 1-3, it is characterized in that: described hydraulic turbine main shaft (5) bottom connects runner (14), described runner (14) is arranged over runner crown seal (20), described runner crown seal (20) be arranged over top cover (19) and roof inner shield (18), described top cover (19) is arranged on seat ring (21)；Described runner (14) lower outer is provided with base ring (15) and base ring backplate (17), described base ring (15) lower section is sequentially provided with runner band seal (13), epimere Taper Pipe (12) and hypomere Taper Pipe (11), arranges stator (16) between described base ring backplate (17) and roof inner shield (18).
5. vertical Francis formula turbine-generator units structure as claimed in claim 4, it is characterized in that: described base ring (15) is bolted on seat ring (21), described seat ring (21) inner edge diameter is more than base ring (15), stator (16) and the external profile diameter of base ring backplate (17).
6. vertical Francis formula turbine-generator units structure as claimed in claim 5, it is characterised in that: described seat ring (21) inner edge diameter is more than roof inner shield (18), top cover runner flange and the external profile diameter of runner crown seal (20).
7. vertical Francis formula turbine-generator units structure as claimed in claim 4, it is characterised in that: the lower section of the described hydraulic turbine (10) is provided with down tears passage (22) open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122315.XU CN205445880U (en) | 2015-12-31 | 2015-12-31 | Vertical mixed -flow hydroelectric set structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122315.XU CN205445880U (en) | 2015-12-31 | 2015-12-31 | Vertical mixed -flow hydroelectric set structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205445880U true CN205445880U (en) | 2016-08-10 |
Family
ID=56573189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521122315.XU Expired - Fee Related CN205445880U (en) | 2015-12-31 | 2015-12-31 | Vertical mixed -flow hydroelectric set structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205445880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422369A (en) * | 2015-12-31 | 2016-03-23 | 重庆水轮机厂有限责任公司 | Vertical mixed-flow type water turbine generator set structure |
-
2015
- 2015-12-31 CN CN201521122315.XU patent/CN205445880U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422369A (en) * | 2015-12-31 | 2016-03-23 | 重庆水轮机厂有限责任公司 | Vertical mixed-flow type water turbine generator set structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vertical mixed-flow type water turbine generator set structure Effective date of registration: 20180117 Granted publication date: 20160810 Pledgee: Chongqing mechanical and electrical Holding Group Finance Co.,Ltd. Pledgor: CHONGQING WATER TURBINE WORKS Co.,Ltd. Registration number: 2018980000007 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190118 Granted publication date: 20160810 Pledgee: Chongqing mechanical and electrical Holding Group Finance Co.,Ltd. Pledgor: CHONGQING WATER TURBINE WORKS Co.,Ltd. Registration number: 2018980000007 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vertical mixed-flow type water turbine generator set structure Effective date of registration: 20190320 Granted publication date: 20160810 Pledgee: Chongqing mechanical and electrical Holding Group Finance Co.,Ltd. Pledgor: CHONGQING WATER TURBINE WORKS Co.,Ltd. Registration number: 2019500000007 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |