CN201090354Y - Through-flow hydraulic turbine external type guide blade spacing mechanism - Google Patents
Through-flow hydraulic turbine external type guide blade spacing mechanism Download PDFInfo
- Publication number
- CN201090354Y CN201090354Y CNU2007201138584U CN200720113858U CN201090354Y CN 201090354 Y CN201090354 Y CN 201090354Y CN U2007201138584 U CNU2007201138584 U CN U2007201138584U CN 200720113858 U CN200720113858 U CN 200720113858U CN 201090354 Y CN201090354 Y CN 201090354Y
- Authority
- CN
- China
- Prior art keywords
- guide vane
- stator
- caging bolt
- hydraulic turbine
- vane lever
- 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 guide vane position-limiting mechanism, in particular to an external guide vane position-limiting mechanism of cross flow type hydraulic turbine, aiming at the problem that the built-in guide vane position-limiting mechanism of the prior cross flow type hydraulic turbine affects water flow state, and has poor operation environment and larger labor intensity, and also unsafe factors, therefore the utility model provides an external guide vane position-limiting mechanism of cross flow type hydraulic turbine. The utility model comprises a position-limiting bolt, a guide vane sleeve and a guide vane arm, wherein a baffle is arranged outside the guide vane arm, a convex block for fixing the position-limiting bolt is arranged at upper end face of the guide vane sleeve, the baffle of the guide vane arm and the convex block of upper end face of the guide vane sleeve are provided with screw holes matched with the position-limiting bolts, the guide vane sleeve and the guide vane arm are arranged outside the outer ring, the guide vane arm is arranged fixedly on shaft head of larger end of guide vane.
Description
Technical field
The utility model relates to a kind of stator position-limit mechanism, particularly a kind of cross-flow water turbine external stator position-limit mechanism.
Background technique
The tubular turbine compact structure, the power station construction investment is economized, and the construction period is short, and has hydraulic performance preferably, is the good type of exploitation low water head rivers and creeks resource and tidal energy.Though the research of tubular turbine is started late, develop very fast.Demand constantly enlarges, and development prospect is wide.Tubular turbine unit's runaway speed is higher, the runaway speed multiple is higher than the runaway speed multiple of other types, runaway speed increases with the increase of guide vane opening, the runaway speed of water turbine relates to the parameter of escaping that flies of institute's allocation motor, the manufacture cost of generator raises with runaway speed to be increased, and too high runaway speed brings certain degree of difficulty for the manufacturing of generator.Because the runaway speed of unit is limit by the generator runaway speed, therefore the guide vane opening to tubular turbine must limit.
Existing tubular turbine adopts the built-in stator position-limit mechanism of cross-flow water turbine to limit to the restriction of guide vane opening, promptly the caging bolt in interior ring outer surface setting and stator equivalent limits, this stator position-limit mechanism exists following deficiency: the one, in runner, protrude 12 or 16 caging bolts, and more or less can influence flow-shape; The 2nd, for the not super wide water distributor of transportation, install for the ease of the power station, simultaneously in order to remain on the clearance between guide vanes of adjusting in the factory, water distributor after assembling finishes is made whole Transporting, when processing spacing screw water distributor being hung height has put, operator's electric hand drill, instruments such as portable lighter enter between the stator inside and outside ring from the fixed bearing bottom that has six pillars, stator is reached desired location, and complete shut-down stator after carrying out mark on the interior ring bores then and attacks 12 or 16 screws, tighten stop screw at last, the operator is this both dark, operation under the narrow and small again environment in space, and labor intensity is big, especially in sultry summer, operational condition is arduouser, and work efficiency is low, and the operator might damage when coming in and going out fixed bearing, wound, accidents such as scuffing.
Summary of the invention
Existing above-mentioned meeting influence flow-shape to the utility model at the built-in stator position-limit mechanism of existing cross-flow water turbine; Operator are this both dark, operation under the narrow and small again environment in space, and labor intensity is big and have a deficiency of unsafe factor.Providing a kind of can alleviate operator's labor intensity for operator create good working environment for this reason, can safety operation also effectively improve work efficiency again, can't influence the cross-flow water turbine external stator position-limit mechanism of flow-shape.
The technology that the utility model adopts is finished in the following way: cross-flow water turbine external stator position-limit mechanism comprises caging bolt, stator cover and guide vane lever, wherein, establish a link stopper in the guide vane lever outside, put end face at stator and be provided with the projection that is used for fixing caging bolt, put at guide vane lever link stopper and stator on the projection of end face and be provided with the screw that matches with stop screw, stator cover and guide vane lever all are in the outer shroud outside, guide vane lever is fixed on the big end spindle nose of stator, after the water distributor assembling, stator is turned over required angle from the driving fit position to opening direction, then caging bolt is tightened.
The utility model cross-flow water turbine external stator position-limit mechanism is compared with existing built-in stator position-limit mechanism has the operating environment of improvement, and there is not potential safety hazard in easy-to-operat, does not influence the characteristics of flow shape again.
Description of drawings
Fig. 1 is the structural representation of the built-in stator position-limit mechanism of cross-flow water turbine.
Fig. 2 is the structural representation of cross-flow water turbine external stator position-limit mechanism.
Embodiment
Contrast accompanying drawing below, the utility model is described in further detail by embodiment.
With reference to accompanying drawing 1, existing guide mechanism in flow-through turbine comprises fixed bearing 1, outer shroud 2, stator cover 3, stator pivoted arm 4, stator 5, gland 6, control ring 7 and interior ring 8.The built-in stator position-limit mechanism of existing cross-flow water turbine is that ring formed on 8 in caging bolt 9 was placed, current in fixed bearing 1 flows into, encircle 8 and outer shroud 2 between.
With reference to accompanying drawing 2, a kind of cross-flow water turbine external stator position-limit mechanism, it comprises stator cover 12, guide vane lever 13 and caging bolt 10, wherein, establish a link stopper in guide vane lever 13 outsides, the radial direction of overlapping 1/8 circumferential position of 12 upper-end surfaces at stator is provided with the projection that is used for fixing caging bolt, overlap at guide vane lever 13 link stoppers and stator on the projection of 12 upper-end surfaces and be provided with the screw that matches with caging bolt 10, stator cover 12 and guide vane lever 13 all are in outer shroud 14 outsides, guide vane lever 13 is fixed on the stator 11 big end spindle noses, and caging bolt 10 is fixed on the stator cover 12.After the water distributor assembling, stator 11 is turned over required angle from the driving fit position to opening direction, then caging bolt 10 is tightened.During work, guide vane lever 13 rotates together in company with stator 11, and stator cover 12 is to maintain static; Be fixed on the caging bolt 10 on the stator cover 12, the position of its position and required stator 11 apertures is complementary; It is limited bolt 10 resistance shelves that stator 11 turns to this position, thereby has limited the increase of stator 11 apertures, guarantees the power plant safety operation.
Claims (3)
1. cross-flow water turbine external stator position-limit mechanism, it comprises stator cover (12), guide vane lever (13) and caging bolt (10), it is characterized in that: establish a link stopper in guide vane lever (13) outside, be provided with the projection that is used for fixing caging bolt (10) in stator cover (12) upper-end surface, on the projection of guide vane lever (13) link stopper and stator cover (12) upper-end surface, be provided with the screw that matches with caging bolt (10), stator cover (12) and guide vane lever (13) all are in outer shroud (14) outside, and guide vane lever (13) is fixed on stator (11) and holds on the spindle nose greatly.
2. cross-flow water turbine external stator position-limit mechanism according to claim 1 is characterized in that 1/8 circumferential position that the projection that is used for fixing caging bolt (10) in stator cover (12) upper-end surface is positioned at stator cover (12) upper-end surface in the radial direction.
3. cross-flow water turbine external stator position-limit mechanism according to claim 1 and 2, it is characterized in that caging bolt (10) is fixed on the stator cover (12), after the water distributor assembling, stator (11) is turned over required angle from the driving fit position to opening direction, then caging bolt (10) is tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201138584U CN201090354Y (en) | 2007-08-29 | 2007-08-29 | Through-flow hydraulic turbine external type guide blade spacing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201138584U CN201090354Y (en) | 2007-08-29 | 2007-08-29 | Through-flow hydraulic turbine external type guide blade spacing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090354Y true CN201090354Y (en) | 2008-07-23 |
Family
ID=39862114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201138584U Expired - Fee Related CN201090354Y (en) | 2007-08-29 | 2007-08-29 | Through-flow hydraulic turbine external type guide blade spacing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090354Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005835A (en) * | 2018-01-25 | 2018-05-08 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide vane supporting and regulating device |
-
2007
- 2007-08-29 CN CNU2007201138584U patent/CN201090354Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005835A (en) * | 2018-01-25 | 2018-05-08 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide vane supporting and regulating device |
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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: 20080723 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |