CN103742336B - The crown balance adjustment groove structure of double-rotary-wheel water turbine - Google Patents
The crown balance adjustment groove structure of double-rotary-wheel water turbine Download PDFInfo
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- CN103742336B CN103742336B CN201410013354.XA CN201410013354A CN103742336B CN 103742336 B CN103742336 B CN 103742336B CN 201410013354 A CN201410013354 A CN 201410013354A CN 103742336 B CN103742336 B CN 103742336B
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- crown
- annular groove
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- rotary
- adjustment
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 230000002146 bilateral effect Effects 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008092 positive effect Effects 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 crown balance adjustment groove structure of a kind of double-rotary-wheel water turbine, except there is crown, flat key, spindle hole, also there is adjustment annular groove and regulating block, wherein, regulate annular groove and be positioned at inside crown, there is bottom surface, side and inclined-plane, regulate the annular groove inclined-plane thickness to outer inclined-plane more than the 80% of crown tip thickness, regulating annular groove bottom surface to spindle hole distance between center line less than crown top to the 60% of spindle hole distance between center line, between adjustment annular groove left and right side, width is less than between the side of crown left and right the 30% of width; Regulating block is threaded connection and is fixed on adjustment annular groove inside bottom surface anchor ring. This structure of the present invention can while ensureing crown structural strength, alleviate crown weight to greatest extent, simultaneously, by changing weight and the regulating block position on adjustment annular groove inside bottom surface anchor ring of regulating block, static balance and the dynamic balancing of runner can be regulated, it is adaptable to the crown of all double-rotary-wheel water turbines.
Description
The field of inventionthe invention relate to a kind of balance adjustment groove structure, particularly in the balance adjustment groove structure being positioned within crown used on double-rotary-wheel water turbine.
Background technology is for identical range of flow, and the single runner hydraulic turbine of double-rotary-wheel water turbine contrast has clear advantage. First it is that Cavitation optimizes greatly, owing to each runner is only extracted square root by the current rated rotational frequency of half, critical cavitation corrosion coefficient value reduces, can free-running operation under unified security coefficient again, or select higher rotation speed under same elevation to run, making electromotor price reduction, overall dimensions reduces, and saves civil engineering costs; Next to that when double runner runs, the water wheels of each runner are in opposite direction, hydraulic thrust direction is also contrary, solves the long-standing problem uppity problem of hydrodynamic bearing temperature, lowers bearing price and thrust is converted to moment of torsion acting simultaneously; 3rd, the processing charges of double-rotary-wheel water turbine is relatively low relative to the capacity list runner hydraulic turbine such as grade; 4th, under the cost built a dam at current barrage and the restriction flooding the factors such as cost, the shortcoming that run-off river power station changes in flow rate is bigger can be solved by the independent double-rotary-wheel water turbine that controls; Finally, the runner of half is closed when fractional load, then double-rotary-wheel water turbine mininmm effective liquid rate range of accommodation is also superior to single runner hydraulic turbine.
Operationally, owing to runner is divided into two parts, can be there are some differences by the current of two runners in the thrust of water wheels to double-rotary-wheel water turbine. The static balance of runner and dynamic balancing can be produced impact by this species diversity. Additionally, the weight of the crown of double-rotary-wheel water turbine increases more, and rotary wheel of water turbine is to connect with long main shaft by one, and just have fulcrum after the tail water at two ends, therefore overweight runner, it is important test for the bearing capacity of bearing and the rigidity of main shaft, it is therefore desirable to consider the overall weight alleviating runner.
" hydraulic thrust balanced structure of water turbine " patent (application number: 201120443208.2) that Chinese patent CN202300797U is disclosed, including hydraulic turbine main shaft, it is arranged on the runner on main shaft, crown and cover plate on runner form crown chamber, lower ring and runner form low pressure chamber, and the diameter of runner upper comb dent ring is more than or less than the diameter of comb ring under runner. This patent is disadvantageous in that: for the balanced structure of single runner hydraulic turbine, and the crown of double-rotary-wheel water turbine is bilateral symmetry, therefore cannot be applied directly to above double-rotary-wheel water turbine.
Summary of the invention present invention aim to provide the crown balance adjustment groove structure of a kind of double-rotary-wheel water turbine, alleviates the weight of double-rotary-wheel water turbine crown, the convenient static balance regulating runner and dynamic balancing.
In order to achieve the above object, the crown balance adjustment groove structure of double-rotary-wheel water turbine provided by the invention is except having crown, flat key, spindle hole, also there is adjustment annular groove and regulating block, wherein, crown structural arrangement is in the center of double-rotary-wheel water turbine water guide structure, crown has top, side and outer inclined-plane, and crown is bilateral symmetry; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate constitute runner, and split-flow baffles is fixed on runner central authorities, and runner is divided into symmetrical two parts by split-flow baffles from centre; Crown is fixed on main shaft by flat key and spindle hole, and blade is fixed on the runner transition anchor ring of crown; Blade has two parts and left side blade and the right blade, left side blade and the right blade to be bilateral symmetry; Regulating annular groove and be positioned at inside crown, regulating annular groove is the annular groove gone out by Boring machine processing in crown center of inside, and adjustment annular groove is bilateral symmetry; Regulate annular groove and there is bottom surface, side and inclined-plane, regulate the annular groove inclined-plane thickness to outer inclined-plane more than the 80% of crown tip thickness, regulate annular groove bottom surface to spindle hole distance between center line less than crown top to the 60% of spindle hole distance between center line, between adjustment annular groove left and right side, width is less than between the side of crown left and right the 30% of width, this structure regulating annular groove while ensureing crown structural strength, can alleviate crown weight to greatest extent; Regulating block is threaded connection and is fixed on adjustment annular groove inside bottom surface anchor ring. It addition, the detailed construction of double-rotary-wheel water turbine water guide structure and mutual alignment relation, describe in another patent application " the double; two of double-rotary-wheel water turbine regulate water distributor " declared together with this patent, repeat no more here. When the invention is employed, by changing weight and the regulating block position on adjustment annular groove inside bottom surface anchor ring of regulating block, it is possible to regulate static balance and the dynamic balancing of runner.
The crown balance adjustment groove structure of double-rotary-wheel water turbine provided by the invention has positive effect: except having crown, flat key, spindle hole, also there is adjustment annular groove and regulating block, wherein, crown structural arrangement is in the center of double-rotary-wheel water turbine water guide structure, crown has top, side and outer inclined-plane, and crown is bilateral symmetry; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate constitute runner, and split-flow baffles is fixed on runner central authorities, and runner is divided into symmetrical two parts by split-flow baffles from centre; Crown is fixed on main shaft by flat key and spindle hole, and blade is fixed on the runner transition anchor ring of crown; Blade has two parts and left side blade and the right blade, left side blade and the right blade to be bilateral symmetry; Regulating annular groove and be positioned at inside crown, regulating annular groove is the annular groove gone out by Boring machine processing in crown center of inside, and adjustment annular groove is bilateral symmetry; Regulate annular groove and there is bottom surface, side and inclined-plane, regulate the annular groove inclined-plane thickness to outer inclined-plane more than the 80% of crown tip thickness, regulating annular groove bottom surface to spindle hole distance between center line less than crown top to the 60% of spindle hole distance between center line, between adjustment annular groove left and right side, width is less than between the side of crown left and right the 30% of width;Regulating block is threaded connection and is fixed on adjustment annular groove inside bottom surface anchor ring. This structure regulating annular groove can while ensureing crown structural strength, alleviate crown weight to greatest extent, simultaneously, by changing weight and the regulating block position on adjustment annular groove inside bottom surface anchor ring of regulating block, static balance and the dynamic balancing of runner can be regulated, it is adaptable to the crown of all double-rotary-wheel water turbines.
Accompanying drawing illustrates that the present invention will be further described in conjunction with accompanying drawing, refer to accompanying drawing:
Accompanying drawing 1 represents the schematic diagram of the present invention.
Structure shown in accompanying drawing 1 includes: outer inclined-plane 1, bottom surface 2, inclined-plane 3, side 4, spindle hole 5, side 6, regulating block 7, top 8.
The crown balance adjustment groove structure of detailed description of the invention double-rotary-wheel water turbine provided by the invention is except having crown, flat key, spindle hole 5, also there is adjustment annular groove and regulating block 7, wherein, crown structural arrangement is in the center of double-rotary-wheel water turbine water guide structure, crown has top 8, side 6 and outer inclined-plane 1, and crown is bilateral symmetry; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate constitute runner, and split-flow baffles is fixed on runner central authorities, and runner is divided into symmetrical two parts by split-flow baffles from centre; Crown is fixed on main shaft by flat key and spindle hole 5, and blade is fixed on the runner transition anchor ring of crown; Blade has two parts and left side blade and the right blade, left side blade and the right blade to be bilateral symmetry; Regulating annular groove and be positioned at inside crown, regulating annular groove is the annular groove gone out by Boring machine processing in crown center of inside, and adjustment annular groove is bilateral symmetry; Regulate annular groove and there is bottom surface 2, side 4 and inclined-plane 3, regulate the annular groove inclined-plane 3 thickness to outer inclined-plane 1 more than the 80% of crown top 8 thickness, regulate annular groove bottom surface 2 to spindle hole 5 distance between center line less than the 60% of crown top 8 to spindle hole 5 distance between center line, regulate 4, annular groove left and right side width less than the 30% of crown left and right 6 width of side, this structure regulating annular groove while ensureing crown structural strength, can alleviate crown weight to greatest extent; Regulating block 7 is threaded connection and is fixed on inside adjustment annular groove bottom surface 2 on anchor ring. It addition, the detailed construction of double-rotary-wheel water turbine water guide structure and mutual alignment relation, describe in another patent application " the double; two of double-rotary-wheel water turbine regulate water distributor " declared together with this patent, repeat no more here. When the invention is employed, by changing weight and regulating block 7 position on anchor ring inside adjustment annular groove bottom surface 2 of regulating block 7, it is possible to regulate static balance and the dynamic balancing of runner.
Scope relates to all the above version.
Claims (1)
1. the crown balance adjustment groove structure of a double-rotary-wheel water turbine, there is crown, flat key, spindle hole (5), wherein, crown structural arrangement is in the center of double-rotary-wheel water turbine water guide structure, crown has top (8), side (6) and outer inclined-plane (1), crown is bilateral symmetry, double-rotary-wheel water turbine water guide structure has split-flow baffles, seat ring, cover plate constitutes runner, split-flow baffles is fixed on runner central authorities, runner is divided into symmetrical two parts by split-flow baffles from centre, crown is fixed on main shaft by flat key and spindle hole (5), blade is fixed on the runner transition anchor ring of crown, blade has two parts and left side blade and the right blade, left side blade and the right blade are bilateral symmetry, it is characterized in that: there is adjustment annular groove and regulating block (7), wherein, regulate annular groove and be positioned at inside crown, regulating annular groove is the annular groove gone out by Boring machine processing in crown center of inside, adjustment annular groove is bilateral symmetry,Regulate annular groove and there are bottom surface (2), side (4) and inclined-plane (3), regulate the thickness on annular groove inclined-plane (3) to outer inclined-plane (1) more than the 80% of crown top (8) thickness, regulating annular groove bottom surface (2) to spindle hole (5) distance between center line less than crown top (8) to the 60% of spindle hole (5) distance between center line, between adjustment annular groove left and right side (4), width is less than between crown left and right side (6) the 30% of width; Regulating block (7) is threaded connection and is fixed on the anchor ring of adjustment annular groove bottom surface (2) inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013354.XA CN103742336B (en) | 2014-01-04 | 2014-01-04 | The crown balance adjustment groove structure of double-rotary-wheel water turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013354.XA CN103742336B (en) | 2014-01-04 | 2014-01-04 | The crown balance adjustment groove structure of double-rotary-wheel water turbine |
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| Publication Number | Publication Date |
|---|---|
| CN103742336A CN103742336A (en) | 2014-04-23 |
| CN103742336B true CN103742336B (en) | 2016-06-08 |
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| CN201410013354.XA Expired - Fee Related CN103742336B (en) | 2014-01-04 | 2014-01-04 | The crown balance adjustment groove structure of double-rotary-wheel water turbine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003460Y (en) * | 2007-01-22 | 2008-01-09 | 张普妲 | Double click type jungle-shaped water turbine |
| CN202300797U (en) * | 2011-11-10 | 2012-07-04 | 浙江金轮机电实业有限公司 | Hydraulic thrust balanced structure of water turbine |
| CN203271999U (en) * | 2013-05-30 | 2013-11-06 | 杨绍明 | Recoil centrifugal water turbine |
| CN203655519U (en) * | 2014-01-04 | 2014-06-18 | 峨眉山市驰骋机械制造有限公司 | Upper canopy balance adjustment ring groove structure of double-rotating-wheel water turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658238A (en) * | 1992-08-04 | 1994-03-01 | Chubu Electric Power Co Inc | Multistage hydraulic machine |
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2014
- 2014-01-04 CN CN201410013354.XA patent/CN103742336B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003460Y (en) * | 2007-01-22 | 2008-01-09 | 张普妲 | Double click type jungle-shaped water turbine |
| CN202300797U (en) * | 2011-11-10 | 2012-07-04 | 浙江金轮机电实业有限公司 | Hydraulic thrust balanced structure of water turbine |
| CN203271999U (en) * | 2013-05-30 | 2013-11-06 | 杨绍明 | Recoil centrifugal water turbine |
| CN203655519U (en) * | 2014-01-04 | 2014-06-18 | 峨眉山市驰骋机械制造有限公司 | Upper canopy balance adjustment ring groove structure of double-rotating-wheel water turbine |
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| CN103742336A (en) | 2014-04-23 |
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Granted publication date: 20160608 |