CN206513492U - A kind of shaft tubular formula hydraulic turbine - Google Patents
A kind of shaft tubular formula hydraulic turbine Download PDFInfo
- Publication number
- CN206513492U CN206513492U CN201720041302.2U CN201720041302U CN206513492U CN 206513492 U CN206513492 U CN 206513492U CN 201720041302 U CN201720041302 U CN 201720041302U CN 206513492 U CN206513492 U CN 206513492U
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- Prior art keywords
- runner
- current energy
- marine tidal
- tubular
- shaft
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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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a kind of shaft tubular formula hydraulic turbine, including crossing water flow passage, cross on the central axis of water flow passage and to be disposed with concrete shaft, tubular runner movable guide vane, tubular runner and at least two groups marine tidal-current energy runner b along water (flow) direction, generator b is connected with marine tidal-current energy runner b main shaft, the opposite sides of concrete shaft is respectively symmetrically disposed with least two groups marine tidal-current energy runner a, it is connected with marine tidal-current energy runner a main shaft on generator a, the main shaft of tubular runner movable guide vane and tubular runner and is connected with generator c.Investment of the power station in civil engineering can be reduced, increases the generated energy in power station, the operation stability in power station is improved.
Description
Technical field
The utility model belongs to tidal power generation technical field, is related to a kind of shaft tubular formula hydraulic turbine.
Background technology
As the emphasis of China's water development by high water head is increasingly turned to middle low water head, traditional axial flow hydraulic turbine is low
Occur in that the problem of low energy indexes, civil engineering and big equipment investment under head, the operating mode of big flow, thus tubular turbine this
Plant the type with preferable operational effect under low water head operating mode and obtain extensive development and application.Tubular turbine is main
Bulb through-flow turbine, shaft extension tubular turbine and the shaft tubular formula hydraulic turbine can be divided into.Wherein scaled bulb tubular water
The problem of due to there is design and installation and operating maintenance aspect in turbine, therefore cost is more high.Shaft extension tubular turbine is curved
Bent runner and the rotating shaft stretched into runner influence larger to unit performance.The shaft tubular formula hydraulic turbine uses concrete shaft generation
The bulb of steel has been replaced, cost is not only reduced, design and construction difficulty is reduced, the stability of unit operation is improved.
It is relatively inexpensive selection using the shaft tubular formula hydraulic turbine for the low-head hydroelectric plant of limited investment.Meeting
Under conditions of installed capacity of power station, as far as possible using the unit of small size to reduce the size of power station foundation ditch, opening for power station is reduced
Digging amount, this to power station cost of investment control it is particularly important.Likewise, due to the change of water level of its operationally section of tidal power station
Frequently, the rotor machine group leader time be in non-optimal operating condition under run, and under non-optimal operating condition in unit draft tube produced by
Low frequency pulsation is all potential threaten to the civil engineering equipment in unit even power station.
Utility model content
The purpose of this utility model is to provide a kind of shaft tubular formula hydraulic turbine, it is possible to reduce throwing of the power station in civil engineering
Money, increases the generated energy in power station, improves the operation stability in power station.
The utility model is the technical scheme adopted is that a kind of shaft tubular formula hydraulic turbine, including crosses water flow passage, crosses current
On the central axis in road along water (flow) direction be disposed with concrete shaft, tubular runner movable guide vane, tubular runner and
Generator b, the opposite sides difference of concrete shaft are connected with least two groups marine tidal-current energy runner b, marine tidal-current energy runner b main shaft
It has been arranged symmetrically at least two groups marine tidal-current energy runner a, marine tidal-current energy runner a main shaft and has been connected with generator a, tubular runner activity
Generator c is connected with the main shaft of stator and tubular runner.
The characteristics of the utility model, also resides in,
Wherein generator a and generator c are arranged in concrete shaft, and generator b was arranged in the outside of water flow passage.
Each marine tidal-current energy runner a of wherein concrete shaft both sides is set gradually along water (flow) direction.
Wherein each marine tidal-current energy runner a of concrete shaft both sides and the gap for crossing water flow passage side wall are straight for marine tidal-current energy runner a
The 1~5% of footpath.
Wherein each marine tidal-current energy runner b is set gradually along water (flow) direction.
The distance between the nearest marine tidal-current energy runner b of the tubular runner of its middle-range and tubular runner are more than 2 times of through-flow
Formula runner diameter.
Wherein marine tidal-current energy runner b is the 1~5% of marine tidal-current energy runner b diameters with the gap for crossing water flow passage side wall.
Wherein generator c magnetic pole logarithm is less than 10 pairs.
Wherein marine tidal-current energy runner a and marine tidal-current energy runner b are provided with least three blades, and marine tidal-current energy runner a and trend
Energy runner b blade construction is identical.
Wherein marine tidal-current energy runner a and marine tidal-current energy runner b blade construction is：The 6 of a diameter of length of blade of blade inlet edge~
8%, the maximum relative thickness of vane airfoil profile is located at apart from the position of the length of blade of leaf head 30%, and the Maximal twist angle of blade is
12 °~15 °, blade material uses fiberglass epoxy resin, and blade interior structure is the laying form of three-dimensional laying.
The beneficial effects of the utility model are to arrange marine tidal-current energy runner a in concrete shaft both sides, generator a is arranged
Inside concrete shaft, the utilization ratio to flow energy is added.Generator a is arranged in vertical shaft due to laying, without
Consider its sealing and moistureproof, along water (flow) direction, marine tidal-current energy runner b is arranged at the rear of tubular runner, it is tubular to flowing out
The energy of the current of runner is recycled, utilization ratio of the increase power station to flow energy.Under non-optimal operating condition, trend
Energy runner b can suppress the low frequency vortex rope inside its neighbouring runner, reduce unit and the resonance of civil engineering equipment caused by pressure fluctuation
Possibility, increase power station operation stability.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the shaft tubular formula hydraulic turbine of the utility model；
The structure that Fig. 2 is marine tidal-current energy runner a and marine tidal-current energy runner b in a kind of shaft tubular formula hydraulic turbine of the utility model is shown
It is intended to；
Fig. 3 is marine tidal-current energy runner a and the marine tidal-current energy runner b Leaf wings in a kind of shaft tubular formula hydraulic turbine of the utility model
The structural representation of type.
In figure, 1. mistake water flow passages, 2. marine tidal-current energy runner a, 3. generator a, 4. marine tidal-current energy runner b, 5. generator b, 6. pass through
Streaming runner, 7. tubular runner movable guide vanes, 8. generator c, 9. concrete shafts.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of shaft tubular formula hydraulic turbine of the utility model, structure as shown in figure 1, including water flow passage 1, cross water flow passage 1
Central axis on along water (flow) direction be disposed with concrete shaft 9, tubular runner movable guide vane 7, tubular runner 6 and
Generator b5, the opposite sides of concrete shaft 9 are connected with least two groups marine tidal-current energy runner b4, marine tidal-current energy runner b4 main shaft
Respectively symmetrically it is disposed with least two groups marine tidal-current energy runner a2, marine tidal-current energy runner a2 main shaft and is connected with generator a3, it is tubular
Generator c8 (tubular runner movable guide vanes 7 and tubular are connected with the main shaft of runner movable guide vane 7 and tubular runner 6
Runner 6 is arranged on same central shaft).
Generator a3 and generator c8 are arranged in concrete shaft 9, and generator b5 was arranged in the outer of water flow passage 1
Side.
Each marine tidal-current energy runner a2 of the both sides of concrete shaft 9 is set gradually along water (flow) direction.
The gap of each marine tidal-current energy runner a2 of the both sides of concrete shaft 9 and the mistake water flow passage 1 side wall nearest with it is trend
The 1~5% of energy runner a2 diameters.
Each marine tidal-current energy runner b4 is set gradually along water (flow) direction.
It is tubular more than 2 times away from the nearest marine tidal-current energy runner b4 of tubular runner 6 and the distance between tubular runner 6
The diameter of runner 6.
The gap of marine tidal-current energy runner b4 and the mistakes water flow passage 1 side wall nearest with it be marine tidal-current energy runner b4 diameters 1~
5%.
Generator c8 magnetic pole logarithm is less than 10 to (being more than 0).
Marine tidal-current energy runner a2 and marine tidal-current energy runner b4 are provided with least three blades, and (marine tidal-current energy runner a2 and marine tidal-current energy turn
Wheel b4 blade quantities are identical, and marine tidal-current energy runner a2 is identical with marine tidal-current energy runner b4 structure, referring to Fig. 2), and marine tidal-current energy runner a2
It is identical with marine tidal-current energy runner b4 blade construction.
Marine tidal-current energy runner a2 and marine tidal-current energy runner b4 blade construction is：As shown in figure 3, a diameter of blade of blade inlet edge is long
The 6~8% of degree, to meet head luffing larger under the different operating modes of tidal power station, the maximum relative thickness of vane airfoil profile is located at
Apart from the position of the length of blade of leaf head 30%, the Maximal twist angle of blade is 12 °~15 °, and blade material uses glass steel loop
Oxygen tree fat, blade interior structure is the laying form of three-dimensional laying.
A kind of course of work of the shaft tubular formula hydraulic turbine of the utility model is：Under accidental conditions, current from cross water
The import of runner 1 flows into after the shunting of concrete shaft 9 runner for flowing into the both sides of concrete shaft 9, and current are perpendicular in concrete
Marine tidal-current energy runner a2 is driven to rotate in the runner of the both sides of well 9, marine tidal-current energy runner a2 drives generator a3 to generate electricity, current are by some
Enter tubular runner movable guide vane 7 after group marine tidal-current energy runner a2, tubular movable guide vane 7 is by current with optimal angle of attack water conservancy diversion
Into tubular runner 6 and tubular runner 6 is driven to rotate, tubular runner 6 drives generator c8 to be generated electricity, current process
Marine tidal-current energy runner b4 is flowed to after tubular runner 6, and continues to drive marine tidal-current energy runner b4 to rotate, marine tidal-current energy runner b4, which drives, to generate electricity
Machine b5 generates electricity.
A kind of the characteristics of shaft tubular formula hydraulic turbine of the utility model is that in the present apparatus, current flow separately through marine tidal-current energy
Runner a2, tubular runner 6 and marine tidal-current energy runner b4 carry out energy exchange, therefore under the requirement of identical installed capacity, it is passed through
The runner diameter of streaming runner 6 can significantly be reduced relative to conventional power unit, and the native stone excavated volume in overall power station can also be obtained
To larger reduction.Due to its change of water level frequently, tubular runner 6 will be in non-optimal within a certain period of time for low-head hydroelectric plant
Run under operating mode, low frequency cavity vortex rope easily occur in the outlet of tubular runner 6, the cavity vortex rope is passing through marine tidal-current energy runner b4
When, because marine tidal-current energy runner b4 rotating speeds are high (more than 300r/min), cavity vortex rope will be broken, and this also ensures that unit and electricity
Civil engineering of standing is not pulsed by low frequency and influenceed.
Claims (10)
1. a kind of shaft tubular formula hydraulic turbine, it is characterised in that：Including crossing water flow passage (1), on the central axis for crossing water flow passage (1)
Concrete shaft (9), tubular runner movable guide vane (7), tubular runner (6) and at least two are disposed with along water (flow) direction
Generator b (5), relative the two of concrete shaft (9) are connected with group marine tidal-current energy runner b (4), marine tidal-current energy runner b (4) main shaft
Side is respectively symmetrically disposed with least two groups marine tidal-current energy runner a (2), marine tidal-current energy runner a (2) and is connected with generator a (3), through-flow
Generator c (8) is connected with the main shaft of formula runner movable guide vane (7) and tubular runner (6).
2. a kind of shaft tubular formula hydraulic turbine according to claim 1, it is characterised in that：The generator a (3) and generating
Machine c (8) is arranged in concrete shaft (9), and generator b (5) was arranged in the outside of water flow passage (1).
3. a kind of shaft tubular formula hydraulic turbine according to claim 1, it is characterised in that：The concrete shaft (9) two
Each marine tidal-current energy runner a (2) of side sets gradually along water (flow) direction.
4. a kind of shaft tubular formula hydraulic turbine according to any claim of claim 1 or 3, it is characterised in that：It is described
Each marine tidal-current energy runner a (2) of concrete shaft (9) both sides is straight for marine tidal-current energy runner a (2) with crossing the gap of water flow passage (1) side wall
The 1~5% of footpath.
5. a kind of shaft tubular formula hydraulic turbine according to claim 1, it is characterised in that：Each marine tidal-current energy runner b (4)
Set gradually along water (flow) direction.
6. a kind of shaft tubular formula hydraulic turbine according to claim 5, it is characterised in that：Away from the tubular runner (6)
The distance between nearest marine tidal-current energy runner b (4) and tubular runner (6) are more than 2 times tubular runner (6) diameter.
7. a kind of shaft tubular formula hydraulic turbine according to any claim of claim 1 or 6, it is characterised in that：It is described
Marine tidal-current energy runner b (4) is the 1~5% of marine tidal-current energy runner b (4) diameter with the gap for crossing water flow passage (1) side wall.
8. a kind of shaft tubular formula hydraulic turbine according to claim 1, it is characterised in that：The magnetic pole of the generator c (8)
Logarithm is less than 10 pairs.
9. a kind of shaft tubular formula hydraulic turbine according to claim 1, it is characterised in that：The marine tidal-current energy runner a (2) and
Marine tidal-current energy runner b (4) is provided with least three blades, and marine tidal-current energy runner a (2) and marine tidal-current energy runner b (4) blade construction
It is identical.
10. a kind of shaft tubular formula hydraulic turbine according to claim 9, it is characterised in that：The marine tidal-current energy runner a (2)
Blade construction with marine tidal-current energy runner b (4) is：The 6~8% of a diameter of length of blade of blade inlet edge, the maximum phase of vane airfoil profile
Thickness is located at apart from the position of the length of blade of leaf head 30%, the Maximal twist angle of blade is 12 °~15 °, and blade material is adopted
Fiberglass epoxy resin is used, blade interior structure is the laying form of three-dimensional laying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720041302.2U CN206513492U (en) | 2017-01-13 | 2017-01-13 | A kind of shaft tubular formula hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720041302.2U CN206513492U (en) | 2017-01-13 | 2017-01-13 | A kind of shaft tubular formula hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513492U true CN206513492U (en) | 2017-09-22 |
Family
ID=59863777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720041302.2U Expired - Fee Related CN206513492U (en) | 2017-01-13 | 2017-01-13 | A kind of shaft tubular formula hydraulic turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593744A (en) * | 2017-01-13 | 2017-04-26 | 西安理工大学 | Shaft through-flow turbine provided with tidal current energy rotating wheels |
-
2017
- 2017-01-13 CN CN201720041302.2U patent/CN206513492U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593744A (en) * | 2017-01-13 | 2017-04-26 | 西安理工大学 | Shaft through-flow turbine provided with tidal current energy rotating wheels |
| CN106593744B (en) * | 2017-01-13 | 2019-10-25 | 西安理工大学 | A kind of shaft tubular formula hydraulic turbine arranging marine tidal-current energy runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20200113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |