CN103742336A - Upper canopy balance adjustment ring slot structure of double rotation wheel water turbine - Google Patents
Upper canopy balance adjustment ring slot structure of double rotation wheel water turbine Download PDFInfo
- Publication number
- CN103742336A CN103742336A CN201410013354.XA CN201410013354A CN103742336A CN 103742336 A CN103742336 A CN 103742336A CN 201410013354 A CN201410013354 A CN 201410013354A CN 103742336 A CN103742336 A CN 103742336A
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- Prior art keywords
- crown
- ring slot
- annular groove
- adjustment ring
- water turbine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 230000001105 regulatory effect Effects 0.000 claims description 34
- 230000007704 transition Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 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 an upper canopy balance adjustment ring slot structure of a double rotation wheel water turbine. The upper canopy balance adjustment ring slot structure of the double rotation wheel water turbine comprises an adjustment ring slot and an adjustment block besides comprising an upper canopy, a flat key and a main shaft hole, wherein the adjustment ring slot is located inside the upper canopy and provided with a bottom surface, a side surface and an oblique surface, the thickness between an inner oblique surface of the adjustment ring slot and an outer oblique surface of the adjustment ring slot is larger than 80% of the thickness of the top of the upper canopy, the distance from the bottom surface of the adjustment ring slot to the center line of the main shaft hole is less than 60% of the distance from the top of the upper canopy to the center line of the main shaft hole, the width between the left side face and the right side face of the adjustment ring slot is less than 30% of the width between the left side end and the right side end of the upper canopy, and the adjustment block is fixed on the inner side annulus surface of the bottom surface of the adjustment ring slot through threaded connection. The upper canopy balance adjustment ring slot structure of the double rotation wheel water turbine can reduce the weight of the upper canopy to the utmost on the premise of guaranteeing structural strength of the upper canopy, and simultaneously can adjust static balance and dynamic balance of a rotation wheel by changing the weight of the adjustment block and the position of the adjustment block on the inner side annulus surface of the bottom surface of the adjustment ring slot, and is applicable to upper canopies of all double rotation wheel water turbines.
Description
Technical field the present invention relates to a kind of balance adjustment groove structure, the balance adjustment groove structure that is positioned at crown inside especially using on double-rotary-wheel water turbine.
Background technique is for identical range of flow, and double-rotary-wheel water turbine contrasts single runner water turbine obvious advantage.First be that Cavitation is optimized greatly, because each runner is only extracted square root by the current rated rotational frequency of half, critical cavitation corrosion coefficient value reduces, can unify again free-running operation under safety coefficient, or select higher rotation speed operation under same elevation, generator price is reduced, and boundary dimension reduces, and saves civil engineering costs; When next is double runner operation, the water wheels opposite direction of each runner, hydraulic thrust direction is also contrary, solves the uppity problem of long-term puzzlement hydrodynamic bearing temperature, lowers bearing price and thrust is converted to moment of torsion acting simultaneously; The 3rd, the processing charges of double-rotary-wheel water turbine is also lower with respect to water turbine such as runner such as list such as the capacity of grade; The 4th, under the cost of building a dam at current barrage and the restriction of flooding the factors such as cost, the shortcoming that run-off river power station changes in flow rate is larger can solve by independently controlling double-rotary-wheel water turbine; Finally, close the runner of half in the situation that of partial load, double-rotary-wheel water turbine mininmm effective liquid rate regulation range is also better than single runner water turbine so.
Double-rotary-wheel water turbine is when operation, and because runner is split into two-part, the current of two runners can exist some differences to the thrust of water wheels.This species diversity can exert an influence to the static balancing of runner and dynamic balancing.In addition, 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 there is fulcrum through after the tail water at two ends, so overweight runner, for the bearing capacity of bearing and the rigidity of main shaft, be important test, therefore need to consider to alleviate the overall weight of runner.
No. CN202300797U disclosed " hydraulic thrust balanced structure of water turbine " patent (application number: 201120443208.2) of Chinese patent, comprise hydraulic turbine main shaft, be arranged on the runner on main shaft, crown on runner and cover plate form crown chamber, lower ring and runner form low-pressure cavity, and the diameter of runner upper comb dent ring is greater than or less than the diameter of broach ring under runner.The deficiency of this patent is: be the equilibrium structure of single runner water turbine, and the crown of double-rotary-wheel water turbine is symmetrical structure, therefore cannot be applied directly to above double-rotary-wheel water turbine.
Summary of the invention object of the present invention is exactly the crown balance adjustment groove structure that a kind of double-rotary-wheel water turbine will be provided, and alleviates the weight of double-rotary-wheel water turbine crown, convenient static balancing and the dynamic balancing that regulates runner.
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 the annular groove of adjusting and regulating block, wherein, crown structure is placed in the central position of double-rotary-wheel water turbine water guide structure, crown has top, side and outer inclined-plane, and crown is symmetrical structure; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate form runner, and split-flow baffles is fixed on runner central authorities, and split-flow baffles is divided into runner from centre symmetrical two-part; Crown is fixed on main shaft by flat key and spindle hole, and blade is fixed on the runner transition anchor ring of crown; It is left side blade and the right blade that blade has two-part, and left side blade and the right blade are symmetrical structure; Regulate annular groove to be positioned at crown inside, regulating annular groove is the annular groove going out by Boring machine processing in crown central interior, and regulating annular groove is symmetrical structure; Regulate annular groove to there is crown and there is bottom surface, side and inclined-plane, regulate the thickness on Dao Wai inclined-plane, annular groove inclined-plane to be greater than 80% of crown tip thickness, regulating ring groove bottom is less than crown top to 60% of spindle hole distance between center line to spindle hole distance between center line, regulate width between annular groove left and right side to be less than 30% of width between the side of crown left and right, regulate this structure of annular groove when guaranteeing crown structural strength, to alleviate to greatest extent crown weight; Regulating block is threaded connection and is fixed on inside regulating ring groove bottom on toroidal surface.In addition, the detailed structure of double-rotary-wheel water turbine water guide structure and mutual alignment relation are narrated in another patent application of declaring together with this patent " two water distributors that regulate of double-rotary-wheel water turbine ", repeat no more here.When the present invention uses, by changing weight and regulating block position on toroidal surface inside regulating ring groove bottom of regulating block, can regulate static balancing 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 the annular groove of adjusting and regulating block, wherein, crown structure is placed in the central position of double-rotary-wheel water turbine water guide structure, crown has top, side and outer inclined-plane, and crown is symmetrical structure; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate form runner, and split-flow baffles is fixed on runner central authorities, and split-flow baffles is divided into runner from centre symmetrical two-part; Crown is fixed on main shaft by flat key and spindle hole, and blade is fixed on the runner transition anchor ring of crown; It is left side blade and the right blade that blade has two-part, and left side blade and the right blade are symmetrical structure; Regulate annular groove to be positioned at crown inside, regulating annular groove is the annular groove going out by Boring machine processing in crown central interior, and regulating annular groove is symmetrical structure; Regulate annular groove to there is crown and there is bottom surface, side and inclined-plane, regulate the thickness on Dao Wai inclined-plane, annular groove inclined-plane to be greater than 80% of crown tip thickness, regulating ring groove bottom is less than crown top to 60% of spindle hole distance between center line to spindle hole distance between center line, regulates width between annular groove left and right side to be less than 30% of width between the side of crown left and right; Regulating block is threaded connection and is fixed on inside regulating ring groove bottom on toroidal surface.This structure of adjusting annular groove can be when guaranteeing crown structural strength, alleviate to greatest extent crown weight, simultaneously, by changing weight and regulating block position on toroidal surface inside regulating ring groove bottom of regulating block, can regulate static balancing and the dynamic balancing of runner, be applicable to the crown of all double-rotary-wheel water turbines.
Accompanying drawing explanation the present invention be further described in connection with accompanying drawing, please refer to accompanying drawing:
Accompanying drawing 1 represents schematic diagram of the present invention.
Structure shown in accompanying drawing 1 comprises: 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 embodiment double-rotary-wheel water turbine provided by the invention is except having crown, flat key, spindle hole 5, also there is the annular groove of adjusting and regulating block 7, wherein, crown structure is placed in the central position of double-rotary-wheel water turbine water guide structure, crown has top 8, side 6 and outer inclined-plane 1, and crown is symmetrical structure; Double-rotary-wheel water turbine water guide structure has split-flow baffles, and seat ring, cover plate form runner, and split-flow baffles is fixed on runner central authorities, and split-flow baffles is divided into runner from centre symmetrical two-part; 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; It is left side blade and the right blade that blade has two-part, and left side blade and the right blade are symmetrical structure; Regulate annular groove to be positioned at crown inside, regulating annular groove is the annular groove going out by Boring machine processing in crown central interior, and regulating annular groove is symmetrical structure; Regulate annular groove to there is crown and there is bottom surface 2, side 4 and inclined-plane 3, regulate annular groove inclined-plane 3 to be greater than 80% of crown top 8 thickness to the thickness on outer inclined-plane 1, regulating ring groove bottom 2 is less than crown top 8 to 60% of spindle hole 5 distances between center line to spindle hole 5 distances between center line, regulate 4 of annular groove left and right sides width to be less than 30% of 6 width of crown left and right side, regulate this structure of annular groove when guaranteeing crown structural strength, to alleviate to greatest extent crown weight; Regulating block 7 is threaded connection and is fixed on regulating ring groove bottom 2 inner side toroidal surfaces.In addition, the detailed structure of double-rotary-wheel water turbine water guide structure and mutual alignment relation are narrated in another patent application of declaring together with this patent " two water distributors that regulate of double-rotary-wheel water turbine ", repeat no more here.When the present invention uses, by changing weight and the position of regulating block 7 on regulating ring groove bottom 2 inner side toroidal surfaces of regulating block 7, can regulate static balancing and the dynamic balancing of runner.
Protection domain of the present invention relates to all changes form recited above.
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 structure is placed in the central position of double-rotary-wheel water turbine water guide structure, crown has top (8), side (6) and outer inclined-plane (1), crown is symmetrical structure, double-rotary-wheel water turbine water guide structure has split-flow baffles, seat ring, cover plate forms runner, split-flow baffles is fixed on runner central authorities, split-flow baffles is divided into runner from centre symmetrical two-part, crown is fixed on main shaft by flat key and spindle hole (5), blade is fixed on the runner transition anchor ring of crown, it is left side blade and the right blade that blade has two-part, left side blade and the right blade are symmetrical structure, it is characterized in that: there is the annular groove of adjusting and regulating block (7), wherein, regulate annular groove to be positioned at crown inside, regulating annular groove is the annular groove going out by Boring machine processing in crown central interior, regulating annular groove is symmetrical structure, regulate annular groove to there is crown 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) to be greater than 80% of crown top (8) thickness, regulating ring groove bottom (2) is less than crown top (8) to 60% of spindle hole (5) distance between center line to spindle hole (5) distance between center line, regulates width between annular groove left and right side (4) to be less than 30% of width between crown left and right side (6), regulating block (7) is threaded connection and is fixed on the toroidal surface of regulating ring groove bottom (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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742336A true CN103742336A (en) | 2014-04-23 |
| CN103742336B CN103742336B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658238A (en) * | 1992-08-04 | 1994-03-01 | Chubu Electric Power Co Inc | Multistage hydraulic machine |
| 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 |
-
2014
- 2014-01-04 CN CN201410013354.XA patent/CN103742336B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658238A (en) * | 1992-08-04 | 1994-03-01 | Chubu Electric Power Co Inc | Multistage hydraulic machine |
| 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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| Publication number | Publication date |
|---|---|
| CN103742336B (en) | 2016-06-08 |
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Granted publication date: 20160608 |