CN112943504A - Large-scale impulse turbine runner of ring manufacturing - Google Patents
Large-scale impulse turbine runner of ring manufacturing Download PDFInfo
- Publication number
- CN112943504A CN112943504A CN202110392090.3A CN202110392090A CN112943504A CN 112943504 A CN112943504 A CN 112943504A CN 202110392090 A CN202110392090 A CN 202110392090A CN 112943504 A CN112943504 A CN 112943504A
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- China
- Prior art keywords
- ring
- rotating wheel
- runner
- split
- impulse turbine
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
- F03B1/02—Buckets; Bucket-carrying rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a large impulse turbine runner manufactured in a ring-dividing way, according to the structural characteristics of the impulse turbine runner, the ring-dividing design and manufacturing are carried out on the large impulse turbine runner under the conditions of meeting the forging capability of runner blank materials and road transportation, and a single ring is transported to a hydropower station and is combined and processed into a whole at the hydropower station; the number of the divided rings of the rotating wheel is three, so that the problems of the forging capacity of the blank material of the rotating wheel with the super-large diameter and the limitation of road transportation of the large-size impact type rotating wheel are solved; the first sub-ring surface of the rotating wheel is positioned on the inner ring of the rotating wheel by avoiding the transition arc surface, and the second sub-ring surface of the rotating wheel is positioned between the pitch circle and the interface of the rotating wheel, so that the split surface of the rotating wheel is far away from a high stress area under the operation of a rotating wheel bucket, and the service life of the split is prolonged; the runner water bucket is manufactured in a split mode and is divided into a water bucket end portion and a hub water bucket, the hub water buckets on the water bucket end portion and the middle ring are independently machined in a numerical control mode in a manufacturing factory, machining and manufacturing difficulty and road transportation limitation are reduced, and production benefits are improved.
Description
Technical Field
The invention relates to the field of impulse turbines, in particular to a large impulse turbine runner manufactured in a ring division mode.
Background
Along with the demand of economic development in China, the demand on energy is continuously increased, and high-head and high-capacity impact type hydroelectric generating sets for hydroelectric development projects are more and more. The impulse runner as the core component of impulse turbine benefits from the development of current fluid mechanics and mechanical digital simulation tools, and the design of the impulse runner makes great progress in principle and design technology. However, with the design and manufacture of large-sized impact type rotating wheels, on one hand, the integral forging of blank materials with ultra-large diameters cannot be realized due to the restriction of the forging size of martensite forged steel which is a material for manufacturing the rotating wheels; on the other hand, when the design size of the runner exceeds the national road transportation width, the impact runner manufactured by a manufacturing factory cannot be transported integrally to a hydropower station for installation. Therefore, a split ring structure is considered to be adopted in the design and manufacture of the large-sized impulse turbine runner, the split ring design of the runner is carried out in a manufacturing factory, a material blank is forged in a split ring mode, the split ring processing and manufacturing are carried out, the split ring is transported to a hydropower station in a split ring mode, then the whole body is manufactured and assembled in the hydropower station, and the problems that the whole body of the raw material of the large-sized impulse turbine runner cannot be forged and the transportation of the road transportation capacity to the whole body of the large-sized impulse turbine runner is limited are.
Disclosure of Invention
In view of the above, the present invention provides a ring-split manufactured large impulse turbine runner, which is manufactured by ring-split design under the condition that the forging capability of the runner blank material and the road transportation condition are satisfied according to the structural characteristics of the impulse turbine runner, and a single ring is transported to a hydropower station and is combined and processed into a whole at the hydropower station. The invention is realized by the following technical scheme:
the runner divides ring quantity to be three rings, and the first minute anchor ring of runner is located the transition circular arc near region between runner bucket root and the runner inner ring, and the first minute anchor ring of runner avoids the transition circular arc face to be located the runner inner ring, and the second minute anchor ring of runner is located between runner pitch circle and the interface, and the interface is the interface of dividing water sword and dividing water sword breach.
In the large impulse turbine runner manufactured by the split ring, the runner is divided into the runner inner ring, the runner middle ring and the runner outer ring by the runner first split ring surface and the runner second split ring surface.
In the large impulse turbine runner manufactured by the ring division, the outer ring of the runner consists of twenty-two bucket ends, the bucket ends are independently processed in a manufacturing factory in a numerical control manner, and the inner ring of the runner and the middle ring of the runner are processed in the manufacturing factory in the numerical control manner; the inner ring of the rotating wheel, the middle ring of the rotating wheel and the outer ring of the rotating wheel are transported to a hydropower station site by a water turbine product manufacturer; the inner ring of the rotating wheel, the middle ring of the rotating wheel and the outer ring of the rotating wheel are welded into a whole in the hydropower station.
In the large impulse turbine runner manufactured by the split rings, the number of the split rings of the runner can be two, and the split rings are positioned on the second split ring surface.
In the large impulse turbine runner manufactured by the split ring, the outer ring of the runner may also be composed of twenty-three bucket ends.
In the large impulse turbine runner manufactured by the split ring, the inner ring of the runner and the middle ring of the runner can be welded into a whole in a turbine product manufacturer.
Technical effects
The invention provides a large impulse turbine runner manufactured in a split ring manner, which is manufactured by performing split ring design on the large impulse turbine runner under the conditions of meeting the forging capacity of runner blank materials and road transportation according to the structural characteristics of the impulse turbine runner, conveying a single ring to a hydropower station, and combining and processing the single ring into a whole at the hydropower station, and has the following technical effects:
1) the number of the divided rings of the rotating wheel is three, so that the problems of the forging capacity of the martensite forged steel of the blank material of the oversized-diameter rotating wheel and the limitation of road transportation of the oversized-size impact rotating wheel are solved;
2) the first sub-ring surface of the rotating wheel is positioned on the inner ring of the rotating wheel by avoiding the transition arc surface, and the second sub-ring surface of the rotating wheel is positioned between the pitch circle and the interface of the rotating wheel, so that the sub-ring surface of the rotating wheel is far away from a high stress area under the operation of a rotating wheel bucket, and the service life of the sub-ring surface is prolonged after the sub-ring surfaces are combined and;
3) the runner water bucket is manufactured in a split mode and is divided into a water bucket end portion and a hub water bucket, the water bucket end portion and the hub water bucket of the middle ring of the runner are independently machined in a numerical control mode in a manufacturing factory, machining and manufacturing difficulty and road transportation limitation are reduced, and production benefits are improved.
Drawings
Fig. 1 is a schematic sectional view of a runner torus of an impulse turbine.
Fig. 2 is a plan view of a configuration of a impulse turbine split ring.
FIG. 3 is a schematic plan view of the overall structure of the impulse wheel.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 3, the number of the rotor sub-rings is three, the first rotor sub-ring surface 1 is located in the vicinity of the transition arc 4 between the rotor bucket root 2 and the rotor inner ring 3, the first rotor sub-ring surface 1 is located on the rotor inner ring 3 avoiding the transition arc surface 4, and the second rotor sub-ring surface 5 is located between the rotor pitch circle 6 and the interface 7. The interface 7 is the interface of the water dividing edge 8 and the water dividing edge gap 9;
as shown in fig. 2 and 3, the first rotor dividing surface 1 and the second rotor dividing surface 5 divide the rotor into an inner rotor ring 3, a middle rotor ring 10 and an outer rotor ring 11, and the outer rotor ring 11 is composed of twenty-two bucket ends 12. The end part 12 of the water bucket is separately processed in a manufacturing factory in a numerical control way, and the molded lines of the inner ring 3 of the rotating wheel and the middle ring 10 of the rotating wheel are processed in the manufacturing factory in a numerical control way;
the inner ring 3, the middle ring 10 and the outer ring 11 of the runner are transported to the site of a hydropower station by a water turbine product manufacturer;
as shown in fig. 1, the inner ring 3, the middle ring 10 and the outer ring 11 are welded together in the hydropower station.
The number of the rotor ring segments can also be two, and the rotor ring segments are positioned on the second ring segment 5.
The wheel outer ring 11 may also consist of twenty-three bucket ends 12.
The inner ring 3 and the middle ring 10 may be welded together in the water turbine manufacturing plant.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a large-scale impulse turbine runner of ring manufacturing which characterized by: the runner divides ring quantity to be the three rings, and the first minute anchor ring of runner (1) is located near transition circular arc (4) between runner bucket root (2) and runner inner ring (3), and the first minute anchor ring of runner (1) is kept away transition circular arc face (4) and is located runner inner ring (3), and runner second minute anchor ring (5) is located between runner pitch circle (6) and interface (7), and interface (7) are the interface of dividing water sword (8) and dividing water sword breach (9).
2. The split-ring-manufactured large impulse turbine runner as claimed in claim 1, wherein: the rotating wheel is divided into a rotating wheel inner ring (3), a rotating wheel middle ring (10) and a rotating wheel outer ring (11) by the rotating wheel first sub ring surface (1) and the rotating wheel second sub ring surface (5).
3. A split-ring-manufactured large impulse turbine runner as claimed in claim 2, wherein: the outer ring (11) of the rotating wheel consists of twenty-two bucket ends (12), the bucket ends (12) are independently processed in a manufacturing factory in a numerical control manner, and the inner ring (3) of the rotating wheel and the middle ring (10) of the rotating wheel are processed in the manufacturing factory in a numerical control manner; the inner rotating wheel ring (3), the middle rotating wheel ring (10) and the outer rotating wheel ring (11) are transported to a hydropower station site by a water turbine product manufacturing plant; the inner ring (3) of the rotating wheel, the middle ring (10) of the rotating wheel and the outer ring (11) of the rotating wheel are welded into a whole in the hydropower station.
4. The split-ring-manufactured large impulse turbine runner of claim 1, wherein: the number of the runner sub-rings can also be two, and the sub-rings are positioned on the second sub-ring surface (5).
5. The split-ring-manufactured large impulse turbine runner of claim 2, wherein: the runner outer ring (11) can also consist of twenty-three bucket ends (12).
6. A split-ring-manufactured large impulse turbine runner as claimed in claim 3, wherein: the inner ring (3) of the rotating wheel and the middle ring (10) of the rotating wheel can also be welded into a whole in a water turbine product manufacturing plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392090.3A CN112943504A (en) | 2021-04-13 | 2021-04-13 | Large-scale impulse turbine runner of ring manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392090.3A CN112943504A (en) | 2021-04-13 | 2021-04-13 | Large-scale impulse turbine runner of ring manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112943504A true CN112943504A (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110392090.3A Pending CN112943504A (en) | 2021-04-13 | 2021-04-13 | Large-scale impulse turbine runner of ring manufacturing |
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| Country | Link |
|---|---|
| CN (1) | CN112943504A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522336A1 (en) * | 1991-07-12 | 1993-01-13 | Sulzer-Escher Wyss AG | Rotor for pelton turbine and manufacture of same |
| CN1715640A (en) * | 2005-08-05 | 2006-01-04 | 柳州市久源水轮机有限责任公司 | Impact type waterturbine wheel |
| CN2806806Y (en) * | 2005-07-06 | 2006-08-16 | 张亦玲 | Water bucket type hydroturbine wheel |
| EP2213407A1 (en) * | 2009-01-30 | 2010-08-04 | Alstom Hydro France | Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component |
| KR20130035015A (en) * | 2011-09-29 | 2013-04-08 | 주식회사 금성이앤씨 | Nozzle adjust device of pelton wheel |
| WO2020060387A1 (en) * | 2018-09-19 | 2020-03-26 | Tnb Research Sdn Bhd | Impulse hydro turbine system |
-
2021
- 2021-04-13 CN CN202110392090.3A patent/CN112943504A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522336A1 (en) * | 1991-07-12 | 1993-01-13 | Sulzer-Escher Wyss AG | Rotor for pelton turbine and manufacture of same |
| CN2806806Y (en) * | 2005-07-06 | 2006-08-16 | 张亦玲 | Water bucket type hydroturbine wheel |
| CN1715640A (en) * | 2005-08-05 | 2006-01-04 | 柳州市久源水轮机有限责任公司 | Impact type waterturbine wheel |
| EP2213407A1 (en) * | 2009-01-30 | 2010-08-04 | Alstom Hydro France | Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component |
| KR20130035015A (en) * | 2011-09-29 | 2013-04-08 | 주식회사 금성이앤씨 | Nozzle adjust device of pelton wheel |
| WO2020060387A1 (en) * | 2018-09-19 | 2020-03-26 | Tnb Research Sdn Bhd | Impulse hydro turbine system |
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Application publication date: 20210611 |
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| WD01 | Invention patent application deemed withdrawn after publication |