CN205503346U - Helical blade formula low water head hydroelectric generator group - Google Patents
Helical blade formula low water head hydroelectric generator group Download PDFInfo
- Publication number
- CN205503346U CN205503346U CN201620170201.0U CN201620170201U CN205503346U CN 205503346 U CN205503346 U CN 205503346U CN 201620170201 U CN201620170201 U CN 201620170201U CN 205503346 U CN205503346 U CN 205503346U
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- China
- Prior art keywords
- helical blade
- bearing
- sleeve
- stake body
- helical
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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)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model provides a helical blade formula low water head hydroelectric generator group, the utility model discloses a helical blade, screw axis, generator, stake body and sleeve are constituteed, the screw axis is connected with the generator through the shaft coupling, the screw axis both ends are fixed respectively on bearing A and bearing B, bearing A and bearing B fix at stake body axial both ends, be fixed with an upwards open -ended circle arc -shaped sleeve section of thick bamboo on the stake body, the screw axis is arranged in in the sleeve, the helical blade equipartition is on the screw axis, clearance delta between helical blade and the sleeve, stake body axial both ends are passed through the concrete and are fixed on the riverbed with certain angle theta, bearing B is L1 apart from the probe distance between the sleeve, and bearing B center is R with the stake body distance, and L1 >= R tg theta.
Description
Technical field
This utility model relates to hydroelectric generator, refers more particularly to a kind of helical blade type low-head hydraulic generating set.
Background technology
Hydroelectric generation is to utilize water can carry out the technology generated electricity, and is one of regenerative resource.At present for high water head, big flow
River generation technology comparative maturity, mostly is Francis formula or Kaplan formula runner.But low head power generation technology is generally adopted
With axial-flow type or scaled bulb tubular runner, it is necessary to possessing certain drop and totally-enclosed, this runner to be submerged in river extremely completely
Need the head fall of 3m～5m less, be the most still applied to the exploitation in bigger river.This technology can not make full use of on a small scale
Water resource (such as channel, streams, sewage treatment plant etc.), also need to bigger engineering construction investment, and device peace simultaneously
Dress, dismounting the most convenient, therefore for the river generation technology of relatively low water head, still have a lot of developable potentiality.20 end of the centurys
Phase, regenerative resource is developed by traditional fossil energy shortage, atmospheric pollution and climate change all an urgent demands increasingly.
High water head, the river generation technology comparative maturity of big flow at present, but the commonly used axial flow of low head power generation technology
Formula or scaled bulb tubular runner, they must possess certain drop and totally-enclosed, and this runner to be submerged in river at least completely
Need the head fall of 3m～5m, be the most still applied to the exploitation in bigger river.This technology can not make full use of small-scale
Water resource (such as channel, streams, sewage treatment plant etc.), also needs to bigger engineering construction investment simultaneously, and device is installed,
It is the most convenient to dismantle, and therefore for the river generation technology of relatively low water head, still has a lot of developable potentiality.
Compared to traditional small-sized water turbine, helical blade type turbine has significant advantage.It has wider efficient district,
Even if laying angle also can keep efficient when close to 0, vane type turbine can also safety by Fish, will not be to ecological environment
Damage；Additionally, its civil engineering cost is low, convenient for installation and maintenance.
This utility model is under the streamflow regime solving low water head, it is impossible to the problem persistently generated electricity and the relatively low problem of generating efficiency,
By the design that helical blade type low-head hydraulic generating set is combined and the layout of installation site thereof, thus realize at low current
In the case of, it is achieved persistently generate electricity.
Utility model content
This utility model is under the streamflow regime solving low water head, it is impossible to the problem persistently generated electricity and the relatively low problem of generating efficiency,
By the design that helical blade type low-head hydraulic generating set is combined and the layout of installation site thereof, thus realize at low current
In the case of, it is achieved persistently generate electricity.
This utility model is achieved by the following technical solution:
A kind of helical blade type low-head hydraulic generating set, including helical blade, helical axis, electromotor, stake body and sleeve
Composition；Described helical axis is connected with electromotor by shaft coupling；Described helical axis two ends are separately fixed at bearing A and bearing B
On, described bearing A and bearing B is fixed on the axial two ends of stake body；The circular arc set of upward opening it is fixed with on described stake body
Cylinder；Described helical axis is placed in described sleeve；Described helical blade is distributed on helical axis；Between described helical blade and sleeve
Gap delta；The axial two ends of described stake body are fixed in the river course with certain drop by concrete θ at a certain angle；Described
Bearing B horizontal range between sleeve is L1, bearing B center and stake body distance are R, and L1≥R tgθ。
Further, described angle, θ is 5 °～30 °.
Further, gap delta takes (0.05%-0.1%) De, wherein De is the external diameter of helical blade.
Further, described sleeve is cross section 1/2～2/3 circle.
Further, described helical blade is single-screw blade, Double helix blade or many helical blades.
Beneficial effect:
1. this utility model simple in construction, and easy installation and removal；This generating set utilizes the gap of helical blade and stake body to join
Closing makes the energy of current be fully used, even the current of low water head may also be used for persistently generating electricity, and the little water resource of China
Abundant, the present invention has wide market prospect and promotional value.
2. circular arc type sleeve takes the symmetrical opening in cross section (1/2-2/3): under actual river, channel environment, current pass through spiral
Vane type generating set only can flood the latter half of helical turbine, need not sleeve to make envelope from the point of view of saving material
Close.
3.L1>=Rtg θ ensures that sleeve water inlet and upper bearing (metal) B have suitable axial distance so that current are in time flowing through between the two
Upper bearing (metal) B will not be flooded, so that it is guaranteed that electromotor is in safe handling state.
4. under specific head fall (h) environment, length L of helical turbine1For h/sin θ, established angle is excessive, then L1Relatively
Little, current also can remain relatively multi-energy by rear, and generating efficiency is relatively low, and established angle is too small, then L1Relatively big, cost can be increased,
Thus in order to improve generating efficiency and reduce cost, select established angle θ (5 °-30 °).
Accompanying drawing explanation
Fig. 1 is front view of the present utility model and schematic top plan view；
Fig. 2 is that this utility model is along carrying out the schematic diagram that flow path direction is arranged；
Reference:
1-helical blade；2-helical axis；3-electromotor；4-stake body；5-bearing A；6-bearing B；7-sleeve；8-is intake direction；
9-water outlet direction.
Detailed description of the invention
For clearer explanation the technical solution of the utility model, explanation below in conjunction with the accompanying drawings:
As illustrated in fig. 1 and 2, helical blade type low-head hydraulic generating set described in the utility model, including helical blade 1,
Helical axis 2, electromotor 3, stake body 4 and sleeve 7 form；Helical blade 1 is Double helix blade, and its external diameter is 1000mm,
Described sleeve 7 is cross section 1/2 circle；Under actual river, channel environment, current only can by helical blade type generating set
Flood the latter half of helical turbine, therefore need not sleeve to make closing；
Described helical axis 2 is connected with electromotor 3 by shaft coupling；Described helical axis 2 two ends be separately fixed at bearing A5 and
On bearing B6, described bearing A5 and bearing B6 is fixed on the axial two ends of stake body 4；It is fixed with upwards on described stake body 4
The circular arc sleeve 7 of opening；Described helical axis 2 is placed in described sleeve 7；Described helical blade 1 is distributed on helical axis 2；
Having gap delta between described helical blade 1 and sleeve 7, between sleeve 7 internal diameter and helical blade 1 external diameter, gap delta is 1mm；
This device established angle θ is 20 °, head fall 2m, L1A length of 1.4m；Current enter circular arc type sleeve from water inlet direction 8
7, axle 2 is rotated and rotates thus generate electricity, then flow out from water outlet direction 9.
The utility model discloses a kind of helical blade type low-head hydraulic generating set, mainly by helical blade, rotary shaft, send out
Motor and stake body composition.Helical blade can be single-screw blade, Double helix blade or many helical blades；Stake body two end axles
Hold and make rotary shaft unsettled together with helical blade, and with nonocclusive circular arc type sleeve, near blade outer end nearly (1/2-1/3) circle
Arc symmetry is open, and between sleeve diameter and helical blade external diameter, gap delta is (0.05%-0.1%) De.The present invention is along the side of stream
To layout, rotating shaft and horizontal plane angle θ are (5 °～30 °), make full use of the energy flowed and drive helical blade and rotating shaft together
Rotate, thus drive axle head electrical power generators.This generator unit structure is simple, and generating efficiency is high, and Financial cost is low, can be extensive
Apply to the occasions such as the streams of low water head, channel.
Work process: current enter screw blade 1, screw blade 1, under the drive of current, drives helical axis 2 to rotate,
Helical axis 2 drives electromotor 3 axle to rotate, it is achieved thereby that be electric energy changes mechanical energy, it is achieved spirally send out by shaft coupling
The work of motor.
Described embodiment be of the present utility model preferred embodiment, but the present invention is not limited to above-mentioned embodiment, is not carrying on the back
In the case of flesh and blood of the present utility model, any conspicuously improved, the replacement that those skilled in the art can make
Or modification belongs to protection domain of the present utility model.
Claims (5)
1. a helical blade type low-head hydraulic generating set, it is characterised in that include helical blade (1), helical axis (2),
Electromotor (3), stake body (4) and sleeve (7) composition；Described helical axis (2) passes through shaft coupling and electromotor (3) phase
Connect；Described helical axis (2) two ends are separately fixed on bearing A (5) and bearing B (6), described bearing A (5) and
Bearing B (6) is fixed on stake body (4) axially two ends；The circular arc sleeve of upward opening it is fixed with on described stake body (4)
(7)；Described helical axis (2) is placed in described sleeve (7)；Described helical blade (1) is distributed on helical axis (2)；
Gap delta is had between described helical blade (1) and sleeve (7)；Concrete is passed through with necessarily in described stake body (4) axially two ends
Angle, θ is fixed in the river course with certain drop；The described bearing B (6) horizontal range between sleeve (7) is L1,
And bearing B (6) center is R with stake body (4) distance, and L1≥R tgθ。
Helical blade type low-head hydraulic generating set the most according to claim 1, it is characterised in that described angle, θ is
5 °～30 °.
Helical blade type low-head hydraulic generating set the most according to claim 1, it is characterised in that gap delta takes
(0.05%-0.1%) De, wherein DeExternal diameter for helical blade (1).
Helical blade type low-head hydraulic generating set the most according to claim 1, it is characterised in that described sleeve (7)
Cross section is 1/2～2/3 circle.
5. according to the helical blade type low-head hydraulic generating set described in any one of Claims 1-4, it is characterised in that institute
Stating helical blade (1) is single-screw blade, Double helix blade or many helical blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170201.0U CN205503346U (en) | 2016-03-04 | 2016-03-04 | Helical blade formula low water head hydroelectric generator group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170201.0U CN205503346U (en) | 2016-03-04 | 2016-03-04 | Helical blade formula low water head hydroelectric generator group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503346U true CN205503346U (en) | 2016-08-24 |
Family
ID=56726565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170201.0U Expired - Fee Related CN205503346U (en) | 2016-03-04 | 2016-03-04 | Helical blade formula low water head hydroelectric generator group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545574A (en) * | 2016-03-04 | 2016-05-04 | 江苏大学 | Spiral blade type low-water-head hydraulic electric generator set |
-
2016
- 2016-03-04 CN CN201620170201.0U patent/CN205503346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545574A (en) * | 2016-03-04 | 2016-05-04 | 江苏大学 | Spiral blade type low-water-head hydraulic electric generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190304 |