CN104005899A - Water turbine guide vane thrust gap adjusting structure - Google Patents
Water turbine guide vane thrust gap adjusting structure Download PDFInfo
- Publication number
- CN104005899A CN104005899A CN201410218690.8A CN201410218690A CN104005899A CN 104005899 A CN104005899 A CN 104005899A CN 201410218690 A CN201410218690 A CN 201410218690A CN 104005899 A CN104005899 A CN 104005899A
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- guide vane
- gap
- thrust ring
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- end surface
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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 a water turbine guide vane thrust gap adjusting device. L-shaped wedge plates are symmetrically arranged in an adjusting gap between an L-shaped guide vane thrust ring and a guide vane sleeve in a padding mode, an adjusting screw rod is transversely installed at the corner positions of the L-shaped wedge plates, and the inner end face of the adjusting screw rod makes contact with the outer end face of the L-shaped guide vane thrust ring. Two 1:20 slopes are processed between each fixing bolt hole and each pin hole in the two sides of the guide vane thrust ring, the L-shaped wedge plates with the installation gradient being 1:20 are installed at the bottom of the thrust ring, the in-out depth of the wedge plates is increased and decreased by adjusting the screw rod, and therefore the guide vane thrust gap is adjusted. The water turbine guide vane thrust gap adjusting device can save time and labor, is convenient to operate, can play a great role in the unit overhaul period, and can shorten the overhaul project duration on the premise that the overhaul quality is ensured.
Description
Technical field
The present invention relates to the improvement technology of pumped storage technical field about Component of Hydraulic Turbines, be 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.
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, 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.
The solution of the present invention: 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 present invention 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 |
|---|---|---|---|
| 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 true CN104005899A (en) | 2014-08-27 |
| CN104005899B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290774A (en) * | 2015-11-13 | 2016-02-03 | 国网新疆电力公司阿勒泰供电公司 | Guide vane crank arm adjusting device for hydraulic generator |
| CN106194287A (en) * | 2016-08-26 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of guiding mechanism of Blast Furnace Gas Turbine first-level guide blade |
| CN107339187A (en) * | 2017-06-13 | 2017-11-10 | 国网新疆电力公司疆南供电公司 | Cavitation-preventive guide vanes of water turbine and cavitation-preventive water distributor |
Citations (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 |
-
2014
- 2014-05-22 CN CN201410218690.8A patent/CN104005899B/en active Active
Patent Citations (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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290774A (en) * | 2015-11-13 | 2016-02-03 | 国网新疆电力公司阿勒泰供电公司 | Guide vane crank arm adjusting device for hydraulic generator |
| CN106194287A (en) * | 2016-08-26 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of guiding mechanism of Blast Furnace Gas Turbine first-level guide blade |
| CN107339187A (en) * | 2017-06-13 | 2017-11-10 | 国网新疆电力公司疆南供电公司 | Cavitation-preventive guide vanes of water turbine and cavitation-preventive water distributor |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104005899B (en) | 2016-05-11 |
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