CN106968866A - A kind of impact type waterturbine wheel - Google Patents
A kind of impact type waterturbine wheel Download PDFInfo
- Publication number
- CN106968866A CN106968866A CN201710191030.9A CN201710191030A CN106968866A CN 106968866 A CN106968866 A CN 106968866A CN 201710191030 A CN201710191030 A CN 201710191030A CN 106968866 A CN106968866 A CN 106968866A
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- CN
- China
- Prior art keywords
- bucket
- axle
- disk
- impact type
- breach
- 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
-
- 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
-
- 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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- 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 kind of impact type waterturbine wheel, including disk, a bucket is evenly arranged within one week in disk, axle is fixed with disc centre, axle is connected with generator, by two shape identical hemisphere faces, symmetrically casting is formed bucket, two hemisphere faces are simultaneously not closed, and gap is left in centre, in fixed bucket, outwardly, side of the hemisphere face away from bucket root is jagged in the gap.Impulse turbine is connected by axle with generator, when water jets impact bucket, and bucket drives runner and axle to rotate together, and water can be converted into electric energy by generator.The present invention can be used in the water energy conversion power generation system of high moisture head and small flow, improve the conversion efficiency of water energy.
Description
Technical field
The present invention relates to a kind of impact type waterturbine wheel, belong to Fluid Machinery and Engineering equipment technical field.
Background technology
With China's expanding economy and the continuous improvement of living standard, energy crisis is aggravated increasingly, the day of urban architecture
It is cumulative many.Energy regenerating is carried out to sanitary sewage and rainwater using city high rise building, development new energy and reduction carbon discharge capacity are seemed
It is particularly important.While the water power calculation of some high moisture head and small flows to mountain area, the utilization of the micro- water power of small power station is also progressively being opened
Exhibition, the characteristics of these water power calculations have one jointly：Head has certain drop, generally more than 30 meters heads, and current are
Intermittent flow or low discharge.
The content of the invention
The technical problems to be solved by the invention are that the defect for overcoming prior art turns there is provided a kind of impulse turbine
Wheel, when water jets impact bucket, bucket drives runner and axle to rotate together, and water can be converted into electric energy by generator.
To solve the above problems, the present invention provides a kind of impact type waterturbine wheel, including disk, in disk one week uniformly
12 buckets are arranged, axle are fixed with disc centre, axle is connected with generator；The bucket passes through bucket fixing hole by bolt
Bucket root is fixed on disk one week；By two shape identical hemisphere faces, symmetrically casting is formed the bucket, and this two and half
Sphere is simultaneously not closed, and gap is left in centre, and in fixed bucket, the gap is outwardly；The hemisphere face away from bucket root one
Side is jagged；
Each bucket inner surface is space three-dimensional distortion curved surface, is built using the root of two hemisphere face intermediate symmetry axles as origin
Vertical coordinate system, the hemisphere face of bucket is formed by the fitting of following characteristics point：
Wherein, Line1-Line8 represents the indicatrix where characteristic point, and x, y, z is characterized three-dimensional coordinate a little.
Foregoing disk includes disc body, bucket fixing hole and axis hole, and the disc body has certain thickness,
The edge of disc body has been evenly arranged 12 pairs of bucket fixing holes；The bucket fixing hole runs through disc body, and each pair bucket is consolidated
The center of circle for determining Kong Douyu disc bodies is in a straight line, and each pair bucket fixing hole is used to fix a bucket；The disk
The center of body opens up axis hole；Respectively there is a square groove axis hole both sides.
Foregoing axle includes the top of axle, and the bottom of axle, the top of the axle is connected with generator, the bottom of axle and water wheels
Machine is connected, and respectively there is a raised square bottom both sides of the axle；The raised square and the square groove of axis hole both sides match
Close, axle is fixed in axis hole；The top of the axle is connected with the bottom of axle by flange.
8 indicatrixes of foregoing characteristic point fitting are：
Line1：Z=-7E-05x3+0.0352x2-5.8401x+297.11
Line2：Z=8E-07x4-0.0004x3+0.0856x2-7.1867x+177.66
Line3：Z=4E-07x4-0.0002x3+0.0385x2-3.5024x+57.605
Line4：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line5：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line6：Z=-3E-10x5+4E-07x4-0.0002x3+0.0304x2-2.6152x-12.247
Line7：Z=-9E-10x5+8E-07x4-0.0002x3+0.0392x2-2.8755x+4.0202
Line8：Z=-3E-08x4+1E-05x3+0.0026x2-0.8703x+6.3994。
Width b, the depth d of foregoing breach, width B, the depth D of bucket are met：b:B=0.56:1；d:D=0.65:
1；The breach is arc, and the width of breach is defined as the distance between two end points of arc；The depth of breach is defined as arc
Vertical range of the minimum point of shape to hemispherical upper surface；The width of bucket be defined as on hemispherical outward flange a little with it is right
Claim the maximum normal distance of axle；The depth of bucket be defined as hemispherical minimum point between hemispherical upper surface it is vertical away from
From.
Foregoing axle radius R1, disc radius R2, bucket outer edge radius R3, meets following relation：R1：R2：R3=
0.095：0.542：1；The bucket outer edge radius is defined as a little arriving the ultimate range of circle disk center on bucket outward flange.
Foregoing runner in the fabrication process, according to identified runner size, according to axle radius R1, disc radius R2,
The ratio of bucket outer edge radius R3 three, according to the width b of bucket breach and the width B ratios of bucket, the depth d of bucket breach
With the depth D ratios of bucket, the proportionate relationship of bucket interior surface features point or characteristic point matched curve, to runner whole geometry machine
Structure is zoomed in and out according to corresponding size.
Beneficial effects of the present invention are：
The runner of the present invention is applied to impulse turbine, the water energy conversion power generation in high moisture head and small flow can be used
In system, operationally the efficiency comparison of water energy conversion power generation is high, and high efficiency region is relatively wide, i.e., in metered flow
More than 90% high efficient area can be ensured in the range of 10%~100%.
Brief description of the drawings
Fig. 1 is the three-dimensional overall structure figure of impact type waterturbine wheel；
Fig. 2 is impact type waterturbine wheel top plan view；
Fig. 3 is disk schematic three dimensional views；
Fig. 4 is disk plane top view；
Fig. 5 is axle；
Fig. 6 is single bucket inner surface schematic diagram；
Fig. 7 is single hemispherical space transversal；
Fig. 8 is the outer rim breach schematic diagram of bucket；
Fig. 9 is the outer rim notch depth of bucket, height, depth, the high-level schematic of bucket；
Figure 10 is bucket, disk, axle radius schematic diagram.
Embodiment
The invention will be further described below.Following examples are only used for clearly illustrating the technical side of the present invention
Case, and can not be limited the scope of the invention with this.
Such as Fig. 1 is the three-dimensional overall structure figure of impact type waterturbine wheel, by disk 2 and the bucket 1 for being arranged in the edge of disk 2
Composition, and be connected by the axle 3 of disc centre with generator, bucket 1 passes through bucket fixing hole 2-2 by bucket root by bolt
1-2 is fixed on disk 2 one weeks.Bucket is that symmetrically casting is formed by two shape identical hemisphere face 1-1, and two hemisphere faces are simultaneously
Not closed, gap is left in centre, and in fixed bucket, the gap is outwardly.Sides of the hemisphere face 1-1 away from bucket root 1-2 has
Breach 1-3.A bucket is only drawn in 12 buckets 1 that disk is evenly arranged for 1 one weeks, Fig. 1 graphics, remaining is not drawn into.
As shown in Fig. 2 being impact type waterturbine wheel top view, as can be seen from the figure it is evenly arranged at the edge of disk 2
12 buckets 1.
Disk as shown in Figure 3 and Figure 4, including disc body 2-1, bucket fixing hole 2-2, axis hole.
Disc body 2-1 has certain thickness, and 12 pairs of bucket fixing holes have been evenly arranged at disc body 2-1 edge
2-2。
Bucket fixing hole 2-2 runs through disc body 2-1, and the centers of circle of each pair bucket fixing hole 2-2 all with disc body is in
On straight line, each pair bucket fixing hole 2-2 is used to fix a bucket 1.
Axis hole is opened up in disc body 2-1 center, axle 3 runs through axis hole.There are two square grooves in axis hole both sides
Axle and runner are integrally fixed by 2-3, the groove by axle key.Impulse turbine is connected by axle with generator, works as water-jet
During stream impact bucket, bucket drives runner and axle to rotate together, and water can be converted into electric energy by generator.Fig. 5 is the knot of axle
Structure schematic diagram.
Fig. 5 is the structural representation of axle, and the top 3-3 of axle is connected with generator, and the bottom 3-1 of axle is connected with the hydraulic turbine,
The bottom both sides of axle respectively have a projection square 3-2 consistent with the square groove 2-3 of axis hole both sides, by raised square 3-2 with
Square groove 2-3 is engaged, and axle is fixed in axis hole.The top 3-3 of axle is connected with the bottom 3-1 of axle by flange 3-4.It is logical
Cross axle 3 to connect runner and generator, the rotating mechanical energy of the hydraulic turbine is converted into electric energy, the bottom of axle by generator
Diameter determine that the diameter on the top of axle determines by generator according to the centre bore of the hydraulic turbine.
As shown in fig. 6, bucket inner surface schematic three dimensional views.Each bucket is a global facility, is by two shape phases
Same and symmetrical hemisphere face casting, each bucket inner surface is space three-dimensional distortion curved surface.
Such as Fig. 7 is 8 indicatrixes in Fig. 6, and bucket inner surface is that space three-dimensional distorts curved surface, and each bucket inner surface is
Space three-dimensional distorts curved surface, and coordinate system, such as Fig. 7 are set up using the root of two hemisphere face intermediate symmetry axles as origin, to three-dimensional bent
Face cut parallel to x, y plane, obtains the three-dimensional coordinate such as table 1 below of hemispherical 8 indicatrixes of one, bucket.
The three-dimensional coordinate of 1 hemispherical 8 indicatrix of table
According to the three-dimensional coordinate of indicatrix, to ensure the hydraulic performance and structural strength of runner, from 8 linear extractions
Characteristic point carries out curve fitting (every Y-axis coordinate is all equal), and the curve after fitting ensures runner Curve of wing more light
Sliding, hydraulic performance is more preferably.In x-z-plane and parallel plane, the fit curve equation formula of 8 curves is as follows：
Line1：Z=-7E-05x3+0.0352x2-5.8401x+297.11
Line2：Z=8E-07x4-0.0004x3+0.0856x2-7.1867x+177.66
Line3：Z=4E-07x4-0.0002x3+0.0385x2-3.5024x+57.605
Line4：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line5：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line6：Z=-3E-10x5+4E-07x4-0.0002x3+0.0304x2-2.6152x-12.247
Line7：Z=-9E-10x5+8E-07x4-0.0002x3+0.0392x2-2.8755x+4.0202
Line8：Z=-3E-08x4+1E-05x3+0.0026x2-0.8703x+6.3994
According to above-mentioned matched curve, the three dimensions transversal of bucket can be drawn out, and then fits the three dimensions of bucket
Curved surface.Such as the hemispheric three dimensions transversal figure that Fig. 8 is a bucket.
As shown in Figure 8, Figure 9, there is a breach in the side away from bucket root, Fig. 8 is breach schematic diagram, and Fig. 9 is scarce
The width of mouth, the width of depth and bucket, depth define schematic diagram；
As shown in figure 9, the width B of the width b of the breach, depth d and bucket, depth D ratios are b:B=0.56:1；d:D
=0.65:1.Because breach is opened on hemisphere face, then breach is arc, and the width of breach is defined as between two end points of arc
Distance.The depth of breach is defined as the minimum point of arc to the vertical range of hemispherical upper surface.The width definition of bucket
For the maximum normal distance on hemispherical outward flange a little with symmetry axis, the depth of bucket is defined as hemispherical minimum point and arrived
Vertical range between hemispherical upper surface.
As shown in Figure 10, axle radius R1, disc radius R2, the bucket outer edge radius R3 of the application, meets following relation：
R1：R2：R3=0.095：0.542：1.Bucket outer edge radius be defined as on bucket outward flange a little to circle disk center it is maximum away from
From.
The runner of the present invention during fabrication, is carried out as claimed below：
(1) according to head and flow is applicable, it is determined that the size of applied runner；
(2) according to identified runner size, according to axle radius R1 provided herein, disc radius R2, bucket outside
The ratio of edge radius R3 three, the width b of bucket breach and the width B ratios of bucket, the depth d and the depth of bucket of bucket breach
The major portion relation of D ratios, bucket interior surface features curve point coordinates or matched curve is spent, mechanism is pressed to runner whole geometry
Zoomed in and out according to corresponding size；
(3) overall fit is carried out for the characteristic point such as table 1 that table curved surface in bucket is provided according to the present invention, can also basis
Several indicatrixes carry out the fitting from line to face.
(4) factory's Foundry Production will can be carried out after the model three-dimensional modeling of overall runner, can be with to bucket and disk
Melt casting together using overall, can also be by after bucket and disk individual cast, then welded.For runner end product also
Need to carry out surface polishing, the smooth of surface, smooth degree also have important influence to the operational efficiency of runner.
The application can carry out scaling geometrically to the runner according to different head and flow.This patent turns
Wheel is bent with higher wide efficiency, can ensure more than 90% high efficient area in the range of the 10%~100% of metered flow.
By it is upper it is described above be only the preferred embodiment of the present invention, it is noted that for the common of the art
For technical staff, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improvement
Protection scope of the present invention is also should be regarded as with deformation.
Claims (7)
1. a kind of impact type waterturbine wheel, it is characterised in that including disk, 12 buckets are evenly arranged for one week in disk,
Disc centre is fixed with axle, and axle is connected with generator；The bucket is fixed bucket root through bucket fixing hole by bolt
In disk one week；By two shape identical hemisphere faces, symmetrically casting is formed the bucket, and two hemisphere faces are simultaneously not closed, in
Between leave gap, in fixed bucket, the gap is outwardly；Side of the hemisphere face away from bucket root is jagged；
Each bucket inner surface is space three-dimensional distortion curved surface, sets up and sits by origin of the root of two hemisphere face intermediate symmetry axles
Mark system, the hemisphere face of bucket is formed by the fitting of following characteristics point：
Wherein, Line1-Line8 represents the indicatrix where characteristic point, and x, y, z is characterized three-dimensional coordinate a little.
2. a kind of impact type waterturbine wheel according to claim 1, it is characterised in that the disk includes disk
Body, bucket fixing hole and axis hole, the disc body have certain thickness, and 12 have been evenly arranged at the edge of disc body
To bucket fixing hole；The bucket fixing hole runs through disc body, and the center of circle of each pair bucket fixing hole all with disc body is in
On straight line, each pair bucket fixing hole is used to fix a bucket；The center of the disc body opens up axis hole；It is described
Respectively there is a square groove axis hole both sides.
3. a kind of impact type waterturbine wheel according to claim 2, it is characterised in that the axle includes the upper of axle
Portion, the bottom of axle, the top of the axle is connected with generator, and the bottom of axle is connected with the hydraulic turbine, and the bottom both sides of the axle are each
There is a raised square；The raised square is engaged with the square groove of axis hole both sides, axle is fixed in axis hole；The axle
Top be connected with the bottom of axle by flange.
4. a kind of impact type waterturbine wheel according to claim 1, it is characterised in that the characteristic point fitting
8 indicatrix is：
Line1：Z=-7E-05x3+0.0352x2-5.8401x+297.11
Line2：Z=8E-07x4-0.0004x3+0.0856x2-7.1867x+177.66
Line3：Z=4E-07x4-0.0002x3+0.0385x2-3.5024x+57.605
Line4：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line5：Z=2E-07x4-0.0001x3+0.0242x2-2.5185x-3.8722
Line6：Z=-3E-10x5+4E-07x4-0.0002x3+0.0304x2-2.6152x-12.247
Line7：Z=-9E-10x5+8E-07x4-0.0002x3+0.0392x2-2.8755x+4.0202
Line8：Z=-3E-08x4+1E-05x3+0.0026x2-0.8703x+6.3994。
5. a kind of impact type waterturbine wheel according to claim 1, it is characterised in that the width b of the breach,
Depth d, width B, the depth D of bucket are met：b:B=0.56:1；d:D=0.65:1；The breach is arc, the width of breach
It is defined as the distance between two end points of arc；The depth of breach is defined as the minimum point of arc to hemispherical upper surface
Vertical range；The width of bucket is defined as the maximum normal distance on hemispherical outward flange a little with symmetry axis；The depth of bucket
Degree is defined as hemispherical minimum point to the vertical range between hemispherical upper surface.
6. a kind of impact type waterturbine wheel according to claim 1, it is characterised in that the axle radius R1, circle
Disk radius R2, bucket outer edge radius R3, meets following relation：R1：R2：R3=0.095：0.542：1；The bucket outer edge radius
It is defined as a little arriving the ultimate range of circle disk center on bucket outward flange.
7. a kind of impact type waterturbine wheel according to claim 1, it is characterised in that the runner was being manufactured
Cheng Zhong, according to identified runner size, according to axle radius R1, disc radius R2, the ratio of bucket outer edge radius R3 three, root
According to the width b and the width B ratios of bucket of bucket breach, the depth d of bucket breach and the depth D ratios of bucket, table in bucket
Region feature point or the proportionate relationship of characteristic point matched curve, are zoomed in and out to runner whole geometry mechanism according to corresponding size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191030.9A CN106968866A (en) | 2017-03-28 | 2017-03-28 | A kind of impact type waterturbine wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191030.9A CN106968866A (en) | 2017-03-28 | 2017-03-28 | A kind of impact type waterturbine wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968866A true CN106968866A (en) | 2017-07-21 |
Family
ID=59335944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710191030.9A Pending CN106968866A (en) | 2017-03-28 | 2017-03-28 | A kind of impact type waterturbine wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343746A (en) * | 2019-08-07 | 2021-02-09 | 江苏海事职业技术学院 | Portable water turbine device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1459672A (en) * | 1922-04-17 | 1923-06-19 | Pelton Water Wheel Co | Runner construction for pelton wheels |
| CN201757019U (en) * | 2010-04-22 | 2011-03-09 | 三明市毅君机械铸造有限公司 | Water turbine impeller structure |
| CN104625650A (en) * | 2015-01-21 | 2015-05-20 | 重庆科技学院 | Manufacturing technology for runner of impulse turbine |
-
2017
- 2017-03-28 CN CN201710191030.9A patent/CN106968866A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1459672A (en) * | 1922-04-17 | 1923-06-19 | Pelton Water Wheel Co | Runner construction for pelton wheels |
| CN201757019U (en) * | 2010-04-22 | 2011-03-09 | 三明市毅君机械铸造有限公司 | Water turbine impeller structure |
| CN104625650A (en) * | 2015-01-21 | 2015-05-20 | 重庆科技学院 | Manufacturing technology for runner of impulse turbine |
Non-Patent Citations (1)
| Title |
|---|
| 刘凯: "冲击式水轮机转轮的AutoCAD三维建模", 《软件导刊》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343746A (en) * | 2019-08-07 | 2021-02-09 | 江苏海事职业技术学院 | Portable water turbine device |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170721 |