CN2172352Y - Hydrautic turbine revolving wheel with 2 impellers - Google Patents
Hydrautic turbine revolving wheel with 2 impellers Download PDFInfo
- Publication number
- CN2172352Y CN2172352Y CN93220305U CN93220305U CN2172352Y CN 2172352 Y CN2172352 Y CN 2172352Y CN 93220305 U CN93220305 U CN 93220305U CN 93220305 U CN93220305 U CN 93220305U CN 2172352 Y CN2172352 Y CN 2172352Y
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- crown
- water
- rotary wheel
- utility
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a double-impeller type rotary wheel for a mixed flow type hydraulic turbine. The essential components of the utility model are that the water inlet end and the water outlet end of each drain hole on the upper crown of the rotary wheel are respectively provided with vanes and water outlet rings, an integral impeller type drain flow passage is formed by the drain hole, the vanes and the water outlet rings, and therefore, the drain impeller of a rotary wheel upper crown is formed. The utility model with simple structure and convenient manufacture can sufficiently drain the water leakage at the top of the rotary wheel upper crown to a draft tube. The utility model is suitable for the rotary wheel of various mixed flow type water turbines. Under the condition that the sealing device of a main shaft is not needed to be arranged, the utility model can completely stop the water leakage of the main shaft, and the continuously normal operation of a hydroelectric generating set is reliably ensured.
Description
The utility model belongs to a kind of impact type motor, relates in particular to a kind of double-valve type runner of Francis turbine.
In the patent No. is disclosed among the ZL92203876.7 " leak stoppage device of counterattack type water turbine active wheel ", its purpose is with the francis turbine runner crown water yield that the seal clearance place spills of leaking, utilize several curve-like blade rows that install between spilled water hole outlet draft cone and the tapered sleeve to draft tube, prevent that the set main shaft sealing from leaking.It is formed with several curve-like blades that install between counterattack type water turbine active wheel or draft cone and the tapered sleeve.Its deficiency is: the runner crown water yield that sealing part spills of leaking is unfavorable in the water inlet of runner crown spilled water hole water inlet place, spilled water hole is drained the power deficiency, make and produce circulation in the cavity that leaks between runner crown and housing (top cover), make housing (top cover) heavy wear, and have leaking of pressure and act on hydraulic turbine main shaft sealing device, make the main shaft sealing device serious wear, cause main shaft seal seriously to leak, influence the normal continuously operation of hydraulic generator unit.
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art and provides a kind of Francis turbine that makes leaking in the cavity between runner crown and the housing can be disposed to draft tube fully under various operating modes, and do not need to be provided with the wheeled rotary wheel of water turbine of double leaf of main shaft sealing device, make the normal continuously operation of hydraulic generator unit obtain reliable guarantee.
The purpose of this utility model reaches by following measure: the wheeled rotary wheel of water turbine of this double leaf comprises crown, following ring, runner bucket, spilled water hole, draft cone, the peripheral affixed water ring that goes out of blade in the crown cavity of spilled water hole waterexit end and this blade and spilled water hole outlet, its special way is that crown is provided with blade between the spilled water hole feed-water end two adjacent spilled water holes, per two these blades and its corresponding spilled water hole, and two blades and the peripheral impeller type sluice way that goes out an integral body of water ring formation thereof of this spilled water hole waterexit end, thereby constitute crown sluicing impeller, under various operating modes, crown sluicing impeller can both be disposed to draft tube fully with leaking in the cavity between runner crown and the housing, thereby make and leak and to spill from gap of main reinforcement, and do not give the main shaft seal boost pressure.
Blade in the crown cavity on the spilled water hole feed-water end can be several and the corresponding manger board of spilled water hole that is fixed in runner crown.Be arranged on the blade of the feed-water end of crown spilled water hole and waterexit end and go out water ring and can make with the spilled water hole Integratively of crown.
The utility model is simple in structure, easy to make, it can fully be discharged into draft tube with leaking of runner crown top, be applicable to various francis turbine runner, and do not needing to be provided with under the situation of main shaft sealing device, can prevent main shaft to leak fully, make the normal continuously operation of hydraulic generator unit obtain reliable guarantee.
The drawing of accompanying drawing is described as follows:
Fig. 1 is that runner crown spilled water hole feed-water end and waterexit end install blade and the structural representation that goes out water ring respectively.
Fig. 2 is runner crown spilled water hole and spilled water hole into and out of the blade of water end (W.E.) and goes out the structural representation that water ring integral body processes.
Fig. 1 shows first embodiment of the present utility model.The formation of double-valve type rotary wheel of water turbine and assemble as follows: go up by flange (2) at main shaft (1) and to connect runner crown (3), uniform several spilled water holes in crown (3) certain diameter place (4), the lower end of crown (3) is fixed with draft cone (5), on crown (3) maximum diameter end end face, be fixed with and rotate labyrinth ring (6), be connected with several uniform runner buckets (7) on the garden conical surface of crown (3), the lower end of blade (7) is connected with ring (8) under the runner, following ring (8) outer race is equipped with base ring (9), the lower end of base ring (9) is fixed with draft tube (10), the upper-end surface of base ring (9) is set with several stators (11), the last neck bush of stator (11) is equipped with top cover (12), top cover (12) passes main shaft (1) and covers runner crown (3), and the top cover (12) that the rotation labyrinth ring (6) that installs on crown (3) is corresponding locates to be fixed with fixedly labyrinth ring (13).Install several blades (manger board 14) in crown (3) cavity of the feed-water end (top) between adjacent spilled water hole (4), and the shape of the end shape of blade (14) top cover (12) corresponding with it is matched.Peripheral affixed several blades (15) of the crown (3) of the waterexit end between adjacent spilled water hole (4) larger diameter end last or draft cone (5), go out water ring (16) blade (15) peripheral affixed, and will go out the water outlet periphery that water ring (16) covers spilled water hole (4) fully, make the blade (15) of the manger board (14) of each spilled water hole (4) feed-water end and spilled water hole (4) and spilled water hole waterexit end and go out the impeller type sluicing runner that water ring (16) forms an integral body to have constituted crown sluicing impeller.Locate to be fixed with rubber flat plate sealing (17) at the top cover (12) corresponding with main shaft (1).
When pressure flow entered runner bucket (7) by stator (11), runner began to rotate and does work.At this moment, leak from fixedly entering pressure between labyrinth ring (13) and the rotation labyrinth ring (6), when accumulating in the cavity between runner crown (3) and the top cover (12) when leaking, same runner crown (3) is rotating blades (14) together, to have leaking of pressure is pressed in the spilled water hole (4) fully, and the blade (15) by spilled water hole (4) waterexit end and go out the runner that water ring (16) forms and successfully drain into draft tube (10), pressure is leaked can not be spilt from main shaft (1) gap location, and has reduced the pressure of rubber flat plate sealing (17).
Fig. 2 shows second embodiment of the present utility model.The formation of double-valve type rotary wheel of water turbine and assemble as follows: go up by key (2) at main shaft (1) and to connect runner crown (3), uniform several spilled water holes in runner crown (3) certain diameter place are with its in-out end blade and go out water ring, with the whole impeller type sluicing runner (18) that processes of runner crown (3), sluicing runner (18) has constituted runner crown sluicing impeller.The lower end of crown (3) is fixed with draft cone (5), on crown (3) maximum diameter end, install and rotate labyrinth ring (6), be connected with several uniform runner buckets (7) on the garden conical surface of crown (3), the lower end of blade (7) is connected with ring (8) under the runner, following ring (8) outer race is equipped with base ring (back shroud 9), the lower end surface of base ring (9) is fixed with draft tube (10), the upper-end surface of base ring (9) is set with several stators (11), the last neck bush of stator (11) is equipped with top cover (12), top cover (12) passes main shaft (1) and covers runner crown (3), the top cover (12) that the rotation labyrinth ring (6) that installs on crown (3) is corresponding locates to install fixedly labyrinth ring (13), is locating to install maintenance sealing (17) with the corresponding top cover of main shaft (1) (12).
When current entered runner bucket (7) by stator (11), runner began to rotate and does work.At this moment, leak from fixedly entering pressure between labyrinth ring (13) and the rotation labyrinth ring (6), when flowing to runner crown (3) sluicing runner (18) inlet when leaking, the crown sluicing impeller that rotates together with runner will leak and be fully discharged into draft tube (10), pressure be leaked can not arrive main shaft (1) gap location that leaks.
Claims (3)
1, the wheeled rotary wheel of water turbine of a kind of double leaf, comprise crown (3), down the blade (15) in the crown cavity of ring (8), runner bucket (7), spilled water hole (4), draft cone (5), spilled water hole (4) waterexit end and blade (15) and spilled water hole (4) outlet periphery affixed go out water ring (16), it is characterized in that the crown (3) between the adjacent spilled water hole of spilled water hole (4) feed-water end is provided with blade (14).
2, rotary wheel of water turbine according to claim 1 is characterized in that blade (14) in crown (3) cavity on spilled water hole (4) feed-water end can be several and the corresponding manger board of spilled water hole (4) that is fixed on the crown (3).
3, rotary wheel of water turbine according to claim 1 is characterized in that blade (14) and (15), and goes out water ring (16) and can make with the spilled water hole Integratively of crown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93220305U CN2172352Y (en) | 1993-07-25 | 1993-07-25 | Hydrautic turbine revolving wheel with 2 impellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93220305U CN2172352Y (en) | 1993-07-25 | 1993-07-25 | Hydrautic turbine revolving wheel with 2 impellers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172352Y true CN2172352Y (en) | 1994-07-20 |
Family
ID=33799485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93220305U Expired - Fee Related CN2172352Y (en) | 1993-07-25 | 1993-07-25 | Hydrautic turbine revolving wheel with 2 impellers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172352Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073487C (en) * | 1994-08-05 | 2001-10-24 | 中国水利水电第四工程局机电安装处 | In-situ welding method for assembling split wheels of large-scale mixed turbine |
| CN100436811C (en) * | 2003-06-06 | 2008-11-26 | 沃依特·西门子水力发电两合公司 | Turning wheel used for mixed flow turbine |
| CN101915196A (en) * | 2010-05-24 | 2010-12-15 | 李延频 | Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan |
| CN104121137A (en) * | 2014-06-24 | 2014-10-29 | 哈尔滨电机厂有限责任公司 | Pressure reduction and vibration damping runner cone device |
| CN106979115A (en) * | 2017-05-16 | 2017-07-25 | 新疆银通建设监理有限公司 | Reaction turbine and its spindle seal system |
| CN107725253A (en) * | 2017-11-09 | 2018-02-23 | 国家电网公司 | A kind of pump turbine sluicing ring not fallen off |
| CN108691717A (en) * | 2017-04-11 | 2018-10-23 | 许昌义 | The Francis turbine of double runner |
| CN109139335A (en) * | 2018-10-17 | 2019-01-04 | 江西省莲花水轮机厂有限公司 | The hydraulic turbine |
| CN109139337A (en) * | 2018-10-17 | 2019-01-04 | 江西省莲花水轮机厂有限公司 | A kind of draft cone of the hydraulic turbine |
| CN109296493A (en) * | 2018-10-17 | 2019-02-01 | 江西省莲花水轮机厂有限公司 | A kind of installation method of draft cone |
| CN109386421A (en) * | 2018-10-17 | 2019-02-26 | 江西省莲花水轮机厂有限公司 | A kind of draft cone |
| CN109404203A (en) * | 2018-10-17 | 2019-03-01 | 江西省莲花水轮机厂有限公司 | A kind of draft cone on the hydraulic turbine |
| CN109681365A (en) * | 2018-10-17 | 2019-04-26 | 江西省莲花水轮机厂有限公司 | A kind of hydraulic turbine with draft cone |
| CN110469443A (en) * | 2019-07-05 | 2019-11-19 | 高邮市大江泵业有限公司 | It is a kind of to adopt the water turbine for cooling tower for being water-cooled drive mechanism |
| CN113431724A (en) * | 2021-07-29 | 2021-09-24 | 东方电气集团东方电机有限公司 | Mixed-flow runner device for water turbine |
-
1993
- 1993-07-25 CN CN93220305U patent/CN2172352Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073487C (en) * | 1994-08-05 | 2001-10-24 | 中国水利水电第四工程局机电安装处 | In-situ welding method for assembling split wheels of large-scale mixed turbine |
| CN100436811C (en) * | 2003-06-06 | 2008-11-26 | 沃依特·西门子水力发电两合公司 | Turning wheel used for mixed flow turbine |
| CN101915196A (en) * | 2010-05-24 | 2010-12-15 | 李延频 | Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan |
| CN101915196B (en) * | 2010-05-24 | 2011-11-16 | 李延频 | Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan |
| CN104121137A (en) * | 2014-06-24 | 2014-10-29 | 哈尔滨电机厂有限责任公司 | Pressure reduction and vibration damping runner cone device |
| CN108691717A (en) * | 2017-04-11 | 2018-10-23 | 许昌义 | The Francis turbine of double runner |
| CN108691717B (en) * | 2017-04-11 | 2020-10-09 | 福州偌晟科技有限公司 | Mixed-flow water turbine with double rotating wheels |
| CN106979115A (en) * | 2017-05-16 | 2017-07-25 | 新疆银通建设监理有限公司 | Reaction turbine and its spindle seal system |
| CN107725253A (en) * | 2017-11-09 | 2018-02-23 | 国家电网公司 | A kind of pump turbine sluicing ring not fallen off |
| CN109296493A (en) * | 2018-10-17 | 2019-02-01 | 江西省莲花水轮机厂有限公司 | A kind of installation method of draft cone |
| CN109139337A (en) * | 2018-10-17 | 2019-01-04 | 江西省莲花水轮机厂有限公司 | A kind of draft cone of the hydraulic turbine |
| CN109386421A (en) * | 2018-10-17 | 2019-02-26 | 江西省莲花水轮机厂有限公司 | A kind of draft cone |
| CN109404203A (en) * | 2018-10-17 | 2019-03-01 | 江西省莲花水轮机厂有限公司 | A kind of draft cone on the hydraulic turbine |
| CN109681365A (en) * | 2018-10-17 | 2019-04-26 | 江西省莲花水轮机厂有限公司 | A kind of hydraulic turbine with draft cone |
| CN109386421B (en) * | 2018-10-17 | 2020-03-27 | 江西省莲花水轮机厂有限公司 | Water drainage cone |
| CN109404203B (en) * | 2018-10-17 | 2020-04-28 | 江西省莲花水轮机厂有限公司 | Water discharge cone for water turbine |
| CN109139335B (en) * | 2018-10-17 | 2020-07-14 | 江西省莲花水轮机厂有限公司 | Water turbine |
| CN109139335A (en) * | 2018-10-17 | 2019-01-04 | 江西省莲花水轮机厂有限公司 | The hydraulic turbine |
| CN110469443A (en) * | 2019-07-05 | 2019-11-19 | 高邮市大江泵业有限公司 | It is a kind of to adopt the water turbine for cooling tower for being water-cooled drive mechanism |
| CN113431724A (en) * | 2021-07-29 | 2021-09-24 | 东方电气集团东方电机有限公司 | Mixed-flow runner device for water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |