CN104005899B - The structure that guide vanes of water turbine thrust gap is adjusted - Google Patents
The structure that guide vanes of water turbine thrust gap is adjusted Download PDFInfo
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- CN104005899B CN104005899B CN201410218690.8A CN201410218690A CN104005899B CN 104005899 B CN104005899 B CN 104005899B CN 201410218690 A CN201410218690 A CN 201410218690A CN 104005899 B CN104005899 B CN 104005899B
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- guide vane
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 9
- 241001149930 Protura <class> Species 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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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 invention discloses the structure that a kind of guide vanes of water turbine thrust gap is adjusted, in adjusting gap between L-type stator thrust ring and guide vane sleeve, symmetrical pad is provided with L-type wedge, turning position at L-type wedge is horizontally installed with adjusting screw(rod), and the inner face of this adjusting screw(rod) contacts with described L-type stator thrust ring outer face. The present invention processes respectively the slope of two 1:20 between the fixed bolt hole of stator thrust ring both sides and pin hole, in thrust ring bottom, the L-type wedge that the gradient is 1:20 is installed, increase and decrease the turnover degree of depth of wedge by adjusting screw(rod), thereby regulate stator thrust gap. This structure can be saved time and manpower, and handled easily can have been given play to larger advantage during major overhaul, can under the prerequisite that ensures repair quality, shorten maintenance duration.
Description
Technical field
The present invention relates to the improvement technology of water-storage technical field about Component of Hydraulic Turbines, be specifically related to a kind of hydraulic turbineThe structure that stator thrust gap is adjusted.
Background technology
The hydraulic turbine (pump turbine) stator thrust gap, refers to the gap between stator thrust ring and guide vane arm, leadsLeaf thrust ring is fixed on top cover, and guide vane arm is connected with movable guide vane. The installation requirement 0.10mm in thrust gap extremelyBetween 0.15mm, thus the adjustment in thrust gap be by reduce gap between thrust ring and connecting lever reduced stator on liftAmount. Ensure when unit operation can not move up too many and wearing plate, facing plate on scratching of stator under the effect of hydraulic thrust. Unit maintenanceIn, meeting after the upper and lower end face Gap-Ratios example of stator 3:2, need to regulate stator thrust gap.
At present, it is the method by clearance gauge repeated measurement that tradition regulates thrust gap, by the pad of increase and decrease thrust ring bottomSheet, measures thrust gap after thrust ring is installed firmly, if larger than installation requirement gap, reduces thrust ring after dismantling thrust ringOn adjusting pad (vice versa), measure after reinstalling firmly. And require the thrust gap one of two thrust ringsCause, if inconsistent, need by wherein readjusting after a thrust ring dismounting, until two block gaps are consistent.
Conventional method regulates the method in thrust gap often to expend time in and manpower, and has very with workmen's experienceImportant Relations. Only two of each stator operations that thrust ring gap is adjusted, need remove and install thrust ring repeatedly, at most repeatedlyNeed the time, need at least time half a day.
Summary of the invention
The object of this invention is to provide the structure that a kind of follow-on guide vanes of water turbine thrust gap is adjusted, solid at thrust ringAfter determining firmly, use adjusting screw(rod) to adjust stator thrust gap, can be that adjustable clearance is satisfied by once mounting thrust ring pacifiesReload request, does not need repeatedly to test, dismounting repeatedly, and be easy to ensure that two thrust gaps are consistent. Save in a large number thereby realizeTime and manpower, shorten maintenance duration, ensure maintenance carry out smoothly.
The solution of the present invention: the structure that a kind of guide vanes of water turbine thrust gap is adjusted, at top cap central bore inner side and upsideBe installed with guide vane sleeve, be fixedly connected with L-type movable guide vane in the guide vane arm lower end of tubulose; L-type stator thrust ring fallsBe buckled in the upside of L-type movable guide vane, and L-type stator thrust ring is fixed on guide vane sleeve and top cover upside; In the thrust of L-type statorIn adjusting gap between ring and guide vane sleeve, symmetrical pad is provided with L-type wedge, laterally pacifies at the turning position of L-type wedgeAdjusting screw(rod) is housed, and the inner face of this adjusting screw(rod) contacts with described L-type stator thrust ring outer face. Gap can also regulatedOn interior L-type stator thrust ring or guide vane sleeve end face, be provided with wedge-shaped impression. Described L-type wedge or wedge-shaped impression tiltedlyDegree is 1:20.
Between the flanging upper surface of L-type movable guide vane and L-type stator thrust ring lower surface, pad is provided with Upper gasket; At LBetween the flanging lower surface of type movable guide vane and guide vane sleeve upper surface, pad is provided with lower gasket, thereby described thrust clearance C isThe gap of Upper gasket and L-type stator thrust ring lower surface, or be the gap of lower gasket and L-type stator thrust ring upper surface. DescribedUpper gasket and lower gasket are respectively arranged with center taper hole, and in the taper hole of Upper gasket, Matching installation has the screwing with conehead, upper spiral shellNail is fixed on L-type stator thrust ring lower surface; In the taper hole of lower gasket, Matching installation has the lower screw with conehead, and lower screw is fixedIn guide vane sleeve upper surface.
The present invention regulates the technique in thrust gap, improves and installs and adjust structure. At the fixing spiral shell of stator thrust ring both sidesBetween keyhole and pin hole, process respectively the slope of two 1:20, in thrust ring bottom, the L-type wedge that the gradient is 1:20 is installedDaughter board, increases and decreases the turnover degree of depth of wedge by adjusting screw(rod), thereby regulates stator thrust gap. This structure can save time withManpower, handled easily can have been given play to larger advantage during major overhaul, can under the prerequisite that ensures repair quality, shortenMaintenance duration.
Brief description of the drawings
Fig. 1 is hydraulic turbine cross-sectional view;
Fig. 2 is the A portion structure for amplifying schematic diagram (position, stator thrust gap) of Fig. 1;
Fig. 3 is the B portion structure for amplifying schematic diagram of Fig. 2.
In figure, label 1 is top cover, and 2 is guide vane sleeve, and 3 is L-type movable guide vane, and 4 is L-type stator thrust ring, and 5 is statorConnecting lever, 6 is Upper gasket, and 7 is screwing, and 8 is lower gasket, and 9 is lower screw, and 10 is L-type wedge, and 11 is adjusting screw(rod), and 12 areFixed bolt hole, 13 is pin hole, 14 is set bolt. C is thrust gap, and T is for regulating gap.
Detailed description of the invention
Embodiment 1: the structure that a kind of guide vanes of water turbine thrust gap is adjusted, participate in Fig. 1 and Fig. 2, at the centre bore of top cover 1Inner side and upside are installed with guide vane sleeve 2, are fixedly connected with L-type movable guide vane 3 in guide vane arm 5 lower ends of tubulose; L-typeStator thrust ring 4 tips upside down on the upside of L-type movable guide vane 3, and L-type stator thrust ring 4 is fixed on guide vane sleeve 2 and top cover 1Upside.
Referring to Fig. 3, between the flanging upper surface of L-type movable guide vane 3 and L-type stator thrust ring 4 lower surfaces, pad and be provided withUpper gasket 6; Between the flanging lower surface of L-type movable guide vane 3 and guide vane sleeve 2 upper surfaces, pad is provided with lower gasket 8, and figure endsPush away clearance C. Upper gasket 6 and lower gasket 8 are respectively arranged with center taper hole, and in the taper hole of Upper gasket 6, Matching installation has with coneheadScrewing 7, screwing 7 is fixed on L-type stator thrust ring 4 lower surfaces; In the taper hole of lower gasket 8, Matching installation has with under coneheadScrew 9, lower screw 9 is fixed on guide vane sleeve 2 upper surfaces.
In adjusting gap T between L-type stator thrust ring 4 and guide vane sleeve 2, the L-type stator in adjusting gap onlyOn throw-out collar or guide vane sleeve end face, be symmetrically arranged with the wedge-shaped impression of 1:20 gradient (gradient). In corresponding wedge-shaped impression, pointL-type wedge is not installed, and the gradient of L-type wedge is 1:20, is horizontally installed with adjusting spiral shell at the turning position of L-type wedgeBar, the inner face of this adjusting screw(rod) contacts with described L-type stator thrust ring outer face.
Above structure, in the middle of L-type stator thrust ring both sides fixed bolt hole and pin hole, with the contact-making surface peace of guide vane sleeveFill two L-type wedges, the gradient of wedge is 1:20, on the long limit of wedge, standing screw is installed, for being fixed on chockOn plate, adjusting screw(rod) is set in the middle of standing screw. After thrust ring is installed firmly, utilize the adjusting screw(rod) on wedge, makeWedge advances or retreats in thrust ring bottom, and then regulates thrust gap become large or diminish, and thrust ring only need be installed once, adjustsJoint thrust gap can meet installation requirement.
Claims (3)
1. the structure that guide vanes of water turbine thrust gap is adjusted, is installed with guide blade sleeve in top cap central bore inner side and upsideCylinder, is fixedly connected with L-type movable guide vane in the guide vane arm lower end of tubulose; L-type stator thrust ring tips upside down on L-type movable guide vaneUpside, and L-type stator thrust ring is fixed on guide vane sleeve and top cover upside; It is characterized in that: at L-type stator thrust ring and statorIn adjusting gap between sleeve, symmetrical pad is provided with L-type wedge, is horizontally installed with adjusting at the turning position of L-type wedgeScrew rod, the inner face of this adjusting screw(rod) contacts with described L-type stator thrust ring outer face; L-type stator in adjusting gap onlyOn throw-out collar or guide vane sleeve end face, be provided with wedge-shaped impression; In flanging upper surface and the thrust of L-type stator of L-type movable guide vaneBetween ring lower surface, pad is provided with Upper gasket; Between the flanging lower surface of L-type movable guide vane and guide vane sleeve upper surface, pad and establishHave lower gasket, thereby described thrust clearance C is the gap of Upper gasket and L-type stator thrust ring lower surface, or is lower gasket and L-typeThe gap of stator thrust ring upper surface.
2. the structure that guide vanes of water turbine thrust according to claim 1 gap is adjusted, is characterized in that: described L-type wedgeOr the gradient of wedge-shaped impression is 1:20.
Guide vanes of water turbine thrust according to claim 1 gap adjust structure, it is characterized in that: described Upper gasket and underPad is respectively arranged with center taper hole, and in the taper hole of Upper gasket, Matching installation has the screwing with conehead, and screwing is fixed on L-typeStator thrust ring lower surface; In the taper hole of lower gasket, Matching installation has the lower screw with conehead, and lower screw is fixed on guide vane sleeveUpper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218690.8A CN104005899B (en) | 2014-05-22 | 2014-05-22 | The structure that guide vanes of water turbine thrust gap is adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218690.8A CN104005899B (en) | 2014-05-22 | 2014-05-22 | The structure that guide vanes of water turbine thrust gap is adjusted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104005899A CN104005899A (en) | 2014-08-27 |
| CN104005899B true CN104005899B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410218690.8A Active CN104005899B (en) | 2014-05-22 | 2014-05-22 | The structure that guide vanes of water turbine thrust gap is adjusted |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290774B (en) * | 2015-11-13 | 2017-12-08 | 国网新疆电力公司阿勒泰供电公司 | Turbine generator guide vane connecting lever adjusting apparatus |
| CN106194287B (en) * | 2016-08-26 | 2017-08-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of adjustment mechanism of Blast Furnace Gas Turbine first-level guide blade |
| CN107339187B (en) * | 2017-06-13 | 2023-08-18 | 国网新疆电力公司疆南供电公司 | Cavitation-preventing water turbine guide vane and cavitation-preventing water guide mechanism |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB770733A (en) * | 1955-06-03 | 1957-03-20 | Nydqvist & Holm Ab | Improvements in sealing devices for wicket gates in water turbines |
| JPH08270538A (en) * | 1995-03-31 | 1996-10-15 | Hitachi Ltd | Water flow control device for water turbine |
| JP2008248762A (en) * | 2007-03-30 | 2008-10-16 | Kubota Corp | Hydraulic turbine for hydroelectric power generation and method for adjusting performance of hydraulic turbine for hydroelectric power generation |
| CN201461200U (en) * | 2009-06-29 | 2010-05-12 | 天津市天发重型水电设备制造有限公司 | Sealing structure of guide-vane lower shaft of water turbine distributor |
| CN202140225U (en) * | 2011-07-14 | 2012-02-08 | 福建南电股份有限公司 | Guide vane shaft hole structure of horizontal water turbine |
| CN202325980U (en) * | 2011-09-23 | 2012-07-11 | 浙江双富电力设备有限公司 | Friction guide vane transmission mechanism |
| CN203476587U (en) * | 2013-09-26 | 2014-03-12 | 福建南电股份有限公司 | Guide vane limiting device |
| CN203847311U (en) * | 2014-05-22 | 2014-09-24 | 国家电网公司 | Thrust gap adjusting structure of guide vane of water turbine |
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