CN203847311U - Thrust gap adjusting structure of guide vane of water turbine - Google Patents
Thrust gap adjusting structure of guide vane of water turbine Download PDFInfo
- Publication number
- CN203847311U CN203847311U CN201420264355.7U CN201420264355U CN203847311U CN 203847311 U CN203847311 U CN 203847311U CN 201420264355 U CN201420264355 U CN 201420264355U CN 203847311 U CN203847311 U CN 203847311U
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- CN
- China
- Prior art keywords
- guide vane
- thrust
- gap
- type
- thrust ring
- 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 - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 10
- 241001149930 Protura <class> Species 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a thrust gap adjusting structure of a guide vane of a water turbine. The thrust gap adjusting structure is characterized in that L-shaped wedge plates are symmetrically padded in adjusting gaps among L-shaped thrust rings of the guide vane and sleeves of the guide vane, adjusting screws are transversely mounted at corners of the L-shaped wedge plates, and the inner end surfaces of the adjusting screws are in contact with the outer end surfaces of the L-shaped thrust rings of the guide vane. Two 1:20 slopes are respectively machined between a fixing bolt hole and a dowel hole which are formed in two sides of each thrust ring of the guide vane, each L-shaped wedge plate with the slope gradient of 1:20 is mounted at the bottom of the corresponding thrust ring, the access depths of the wedge plates can be increased or decreased by the aid of the adjusting screws, and accordingly thrust gaps of the guide vane can be adjusted. The thrust gap adjusting structure has the advantages that time and labor can be saved, the thrust gap adjusting structure is convenient to operate, the superiority of the thrust gap adjusting structure can be brought into full play to a great extent in major repair periods of units, and accordingly the maintenance duration can be shortened on the premise that the maintenance quality is guaranteed.
Description
Technical field
The utility model relates to the improvement technology of pumped storage technical field about Component of Hydraulic Turbines, is specifically related to the structure that a kind of guide vanes of water turbine thrust gap is adjusted.
Background technique
Water turbine (pump turbine) stator thrust gap, refers to the gap between stator thrust ring and guide vane arm, and stator thrust ring is fixed on top cover, and guide vane arm is connected with movable guide vane.Between the installation requirement 0.10mm to 0.15mm in thrust gap, thus the adjustment in thrust gap be by reduce gap between thrust ring and connecting lever reduced stator on the amount of lifting.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.In unit maintenance, 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 bottom, after being installed firmly, thrust ring measures thrust gap, if larger than installation requirement gap, after dismantling thrust ring, reduce the adjusting pad (vice versa) on thrust ring, measure after reinstalling firmly.And require the thrust gap of two thrust rings consistent, 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 much relations with workmen's experience.Only two of each stator operations that thrust ring gap is adjusted, need remove and install thrust ring repeatedly repeatedly, need at most the time, need at least time half a day.
Model utility content
The purpose of this utility model is to provide the structure that a kind of follow-on guide vanes of water turbine thrust gap is adjusted, after thrust ring fixation, use adjusting screw rod to adjust stator thrust gap, can be that adjustable clearance meets installation requirement by once mounting thrust ring, do not need repeatedly to test, dismounting repeatedly, and be easy to ensure that two thrust gaps are consistent.Save a large amount of time and manpower thereby realize, shorten maintenance duration, ensure to overhaul and carry out smoothly.
Scheme of the present utility model: the structure that a kind of guide vanes of water turbine thrust gap is adjusted, be installed with guide vane sleeve in top cap central bore inner side and upside, be 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 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 adjusting gap between L-type stator thrust ring and guide vane sleeve, symmetrical pad is provided with L-type wedge, is horizontally installed with adjusting screw rod at the turning position of L-type wedge, and the interior edge face of this adjusting screw rod contacts with described L-type stator thrust ring exterior edge face.Can also be provided with wedge-shaped impression regulating on L-type stator thrust ring in gap or guide vane sleeve end face.The gradient of described L-type wedge or wedge-shaped impression is 1:20.
Between the flanging upper-end surface of L-type movable guide vane and L-type stator thrust ring lower end surface, pad is provided with Upper gasket; Between the flanging lower end surface of L-type movable guide vane and guide vane sleeve upper-end surface, pad is provided with lower levelling plate, thereby described adjusting gap is the gap of Upper gasket or lower levelling plate and L-type stator thrust ring upper-end surface or lower end surface.Described Upper gasket and lower levelling plate are respectively arranged with center taper hole, and in the taper hole of Upper gasket, Matching installation needs the screwing of conehead, and screwing is fixed on L-type stator thrust ring lower end surface; In the taper hole of lower levelling plate, Matching installation needs the lower screw of conehead, and lower screw is fixed on guide vane sleeve upper-end surface.
The utility model regulates the technique in thrust gap, improves and installs and adjust structure.Between the fixed bolt hole of stator thrust ring both sides 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 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 easy-to-operat can have been given play to larger advantage during major overhaul, can under the prerequisite that ensures repair quality, shorten maintenance duration.
Brief description of the drawings
Fig. 1 is water 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, 3 is L-type movable guide vane, and 4 is guide vane arm, and 5 is L-type stator thrust ring, 6 is Upper gasket, and 7 is screwing, and 8 is lower levelling plate, 9 is lower screw, 10 is L-type wedge, and 11 is adjusting screw rod, and 12 is fixed bolt hole, 13 is pin hole, and 14 is fixing bolt.C is thrust gap, and T is for regulating gap.
Embodiment
Embodiment 1: the structure that a kind of guide vanes of water turbine thrust gap is adjusted, participate in Fig. 1 and Fig. 2, and be installed with guide vane sleeve 2 at center hole inner side and the upside of top cover 1, be fixedly connected with L-type movable guide vane 3 in guide vane arm 4 lower ends of tubulose; L-type stator thrust ring 5 tips upside down on the upside of L-type movable guide vane 3, and L-type stator thrust ring 3 is fixed on the upside of guide vane sleeve 2 and top cover 1.
Referring to Fig. 3, between the flanging upper-end surface of L-type movable guide vane 3 and L-type stator thrust ring 5 lower end surfaces, pad is provided with Upper gasket 6; Between the flanging lower end surface of L-type movable guide vane 3 and guide vane sleeve 2 upper-end surfaces, pad is provided with lower levelling plate 8, thrust clearance C in figure.Upper gasket 6 and lower levelling plate 8 are respectively arranged with center taper hole, and in the taper hole of Upper gasket 6, Matching installation needs the screwing 7 of conehead, and screwing 7 is fixed on L-type stator thrust ring 5 lower end surfaces; In the taper hole of lower levelling plate 8, Matching installation needs the lower screw 9 of conehead, and lower screw 9 is fixed on guide vane sleeve 2 upper-end surfaces.
In adjusting gap T between L-type stator thrust ring 5 and guide vane sleeve 2, on the L-type stator thrust ring in adjusting gap or guide vane sleeve end face, be symmetrically arranged with the wedge-shaped impression of 1:20 gradient (gradient).In corresponding wedge-shaped impression, be separately installed with L-type wedge, the gradient of L-type wedge is 1:20, is horizontally installed with adjusting screw rod at the turning position of L-type wedge, the interior edge face of this adjusting screw rod contacts with described L-type stator thrust ring exterior edge face.
Above structure, in the middle of L-type stator thrust ring both sides fixed bolt hole and pin hole, installs two L-type wedges with the surface of contact of guide vane sleeve, the gradient of wedge is 1:20, on the long limit of wedge, standing screw is installed, for being fixed on wedge, adjusting screw rod is set in the middle of standing screw.After thrust ring is installed firmly, utilize the adjusting screw rod on wedge, make wedge advance or retreat in thrust ring bottom, and then regulate thrust gap become large or diminish, thrust ring only need be installed once, regulates thrust gap can meet installation requirement.
Claims (5)
1. the structure that guide vanes of water turbine thrust gap is adjusted, is installed with guide vane sleeve in top cap central bore inner side and upside, 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 the upside of L-type movable guide vane, and L-type stator thrust ring is fixed on guide vane sleeve and top cover upside; It is characterized in that: in the 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 interior edge face of this adjusting screw rod contacts with described L-type stator thrust ring exterior edge face.
2. the structure that guide vanes of water turbine thrust according to claim 1 gap is adjusted, is characterized in that: on the L-type stator thrust ring in adjusting gap or guide vane sleeve end face, be provided with wedge-shaped impression.
3. the structure that guide vanes of water turbine thrust according to claim 2 gap is adjusted, is characterized in that: the gradient of described L-type wedge or wedge-shaped impression is 1:20.
4. the structure that guide vanes of water turbine thrust according to claim 1 gap is adjusted, is characterized in that: between the flanging upper-end surface of L-type movable guide vane and L-type stator thrust ring lower end surface, pad and be provided with Upper gasket; Between the flanging lower end surface of L-type movable guide vane and guide vane sleeve upper-end surface, pad is provided with lower levelling plate, thereby described adjusting gap is the gap of Upper gasket or lower levelling plate and L-type stator thrust ring upper-end surface or lower end surface.
5. the structure that guide vanes of water turbine thrust according to claim 4 gap is adjusted, it is characterized in that: described Upper gasket and lower levelling plate are respectively arranged with center taper hole, in the taper hole of Upper gasket, Matching installation needs the screwing of conehead, and screwing is fixed on L-type stator thrust ring lower end surface; In the taper hole of lower levelling plate, Matching installation needs the lower screw of conehead, and lower screw is fixed on guide vane sleeve upper-end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264355.7U CN203847311U (en) | 2014-05-22 | 2014-05-22 | Thrust gap adjusting structure of guide vane of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264355.7U CN203847311U (en) | 2014-05-22 | 2014-05-22 | Thrust gap adjusting structure of guide vane of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847311U true CN203847311U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420264355.7U Expired - Lifetime CN203847311U (en) | 2014-05-22 | 2014-05-22 | Thrust gap adjusting structure of guide vane of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005899A (en) * | 2014-05-22 | 2014-08-27 | 国家电网公司 | Water turbine guide vane thrust gap adjusting structure |
-
2014
- 2014-05-22 CN CN201420264355.7U patent/CN203847311U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005899A (en) * | 2014-05-22 | 2014-08-27 | 国家电网公司 | Water turbine guide vane thrust gap adjusting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |