CN202148978U - Forward/reverse rotation double impellers mounted on horizontal shaft tide generating set - Google Patents
Forward/reverse rotation double impellers mounted on horizontal shaft tide generating set Download PDFInfo
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- CN202148978U CN202148978U CN201120235964U CN201120235964U CN202148978U CN 202148978 U CN202148978 U CN 202148978U CN 201120235964 U CN201120235964 U CN 201120235964U CN 201120235964 U CN201120235964 U CN 201120235964U CN 202148978 U CN202148978 U CN 202148978U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 238000004146 energy storage Methods 0.000 claims description 4
- ZRXYMHTYEQQBLN-UHFFFAOYSA-N [Br].[Zn] Chemical compound [Br].[Zn] ZRXYMHTYEQQBLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000005611 electricity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004153 renaturation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The utility model belongs to the field of ocean renewable energy source development, and particularly discloses a forward/reverse rotation double impellers mounted on a horizontal shaft tide generating set, which includes a forward impeller, forward impeller blades, a reverse impeller, reverse impeller blades, an integrated transmission system, a flow direction/flow velocity sensor and a tower base, wherein the integrated transmission system includes a forward impeller rotating shaft, a forward speed increasing generator, a storage battery, a reverse speed increasing generator, a reverse impeller rotating shaft, a forward gear speed reducer, a forward drive motor, a controller, a reverse drive motor and a reverse gear speed reducer. The forward impeller and the reverse impeller are symmetrically mounted, simultaneously operate, and have opposite rotation directions. The forward/reverse rotation double impellers mounted on the horizontal shaft tide generating set is suitable for reversing current, has high single machine power and efficiency, self-starting capability under all flow velocities, simple appearance, stable operation, and stable, clean and pollution-free electrical energy outputting.
Description
Technical field
The utility model belongs to the regenerable marine energy development field, relates to positive and negative rotation bilobed wheel horizontal axis tidal power generating unit.
Background technique
The energy and environment are the significant problems that human kind sustainable development faces, and the renewable energy sources of development cleaning is known together by countries in the world.China marine site is vast, 4,700,000 square kilometres of the gross areas; The shore line complications are very long, and it is very abundant that 1.8 ten thousand kilometers on continent water front, 1.4 ten thousand kilometers on island water front, ocean energy accumulate the resource reserve, and the trend that wherein can supply develop can 2,000 ten thousand kilowatts, and development prospect is very wide.
Trend has typical in the renaturation characteristics.Generating is the principal mode that trend can be utilized, and the core that trend can be generated electricity is the water turbine that absorbs trend.Horizontal axis water turbine single-machine capacity is big, is fit to various tidal current speed, is extensively favored, and is described as " underwater windmill ".
Trend energy capture efficient is to estimate the core technology index of horizontal axis water turbine, and the energy capture efficient that how to improve reversing current is the key of horizontal axis water turbine.To the past renaturation characteristics of trend, single horizontal axis water turbine need become oar on a large scale and promptly change attack angle of blade, and 180 ° of driftages perhaps carrying out impeller realize.Under the sea, realize becoming oar on a large scale or going off course and significantly to reduce the reliability and the life-span of water turbine, for example cause seals damaged, blade, impeller rigidity and intensity reduction etc.Therefore, single horizontal axis water turbine is difficult to the two-way capture rate that realization is gone together mutually, compound tides flow.To this problem, there is the scholar to propose the bilobed wheel water turbine, two impellers symmetry is installed, and corresponding incoming flow operating mode is only met the impeller work of stream, and to adapt to reversing current, this design has increased one-time investment, and energy capture efficient depends on single impeller fully.
Patent application: bi-reverse folding-type cross shaft tidal stream energy hydroturbine, application number 201010247741.1, main contents are shown in accompanying drawing 1; A cover impeller, connecting rod, knuckle and step-up gear are respectively established in the generator two ends; The step-up gear at generator and two ends is fixed on the common base; Pedestal adopts rotating manner to be installed on the pillar by thrust-bearing, and pillar is fixed on the concrete pedestal of sea bed; The blade of impeller, connecting rod and pillar adopt accordion structure, and this trend can be passed through effective folding by water turbine, has dwindled the volume of whole device, and the dismounting between each parts is avoided in convenient transportation.This model utility is folding through water turbine, effectively reduces transportation, the installation cost of water turbine, but has reduced the intensity and the reliability of blade, connecting rod and pillar, complex structure; For trend back and forth, energy capture efficient is identical with single impeller, does not improve the integral energy capture rate of bilobed wheel water turbine.
To sum up, a water turbine of improving the standard is to reduce the core that trend can development cost for the energy capture efficient of reversing current, also is the key that regenerable marine energy utilizes.
The model utility content
The utility model proposes positive and negative rotation bilobed wheel horizontal axis tidal power generating unit to horizontal axis water turbine in the present regenerable marine energy exploitation for the low problem of the complex energy capture rate of reversing current.
Positive and negative rotation bilobed wheel horizontal axis tidal power generating unit; Comprise forward impeller, forward impeller blade, reverse impeller, reverse impeller blade, integrated transmission system, flow to flow transducer and tower seat, wherein integrated transmission system comprises forward impeller shaft, forward speedup generator, storage battery, reverse speedup generator, reverse impeller rotating shaft, forward gear reducer, positive direction actuation motor, controller, reverse direction actuation motor and reverse gear retarder.
Described positive and negative rotation bilobed wheel horizontal axis tidal power generating unit, integrated transmission system flows to the top that flow transducer is positioned at integrated transmission system between forward impeller and reverse impeller, and integrated transmission system is supported on the tower seat; Forward impeller, forward impeller shaft and forward speedup generator coaxle, reverse impeller, reverse impeller rotating shaft and reverse speedup generator coaxle, the central axes of forward speedup generator and reverse speedup generator.
Described positive and negative rotation bilobed wheel horizontal axis tidal power generating unit; The forward impeller blade is fixed on the forward impeller; The reverse impeller vanes fixed is on reverse impeller, and forward impeller and reverse impeller are imported in the integrated transmission system through forward impeller shaft and reverse impeller rotating shaft respectively; The forward impeller shaft connects forward speedup generator, and the reverse impeller rotating shaft connects reverse speedup generator; Between forward speedup generator and the storage battery, between reverse speedup generator and the storage battery, between storage battery and the controller, between controller and the positive direction actuation motor, all adopt cable to connect between controller and the reverse direction actuation motor; The positive direction actuation motor drives the forward impeller shaft via the forward gear reducer, and the reverse direction actuation motor drives the reverse impeller rotating shaft via the reverse gear retarder.
Described forward impeller and reverse impeller are identical, and the number of blade is 2-6, along passing through forward impeller shaft and reverse impeller rotating shaft mid point and installing perpendicular to the plane symmetry of forward impeller shaft.The blade of forward impeller blade and reverse impeller blade can be plunderred in the blade one or more for prismatic blade, twisted blade, band.
Described storage battery can adopt zinc bromine accumulation energy battery or all-vanadium liquid flow energy storage battery.
Positive and negative rotation bilobed wheel horizontal axis tidal power generating unit; Also can adopt integrated transmission system to be positioned at a side of forward impeller and reverse impeller; The reverse impeller rotating shaft is a hollow shaft; Through the supporting of transition bearing, constitute the suit dual-rotor structure between reverse impeller rotating shaft internal diameter and the forward impeller shaft external diameter; Each parts of integrated transmission system are constant, and necessary adjustment is carried out in the position.
Working principle: the direction and the flow velocity that flow to the flow sensor measures trend; When direction of tide flows to reverse impeller by the forward impeller; The forward impeller is forward rotation under trend drives; Drive the forward impeller shaft and drive forward speedup generator for electricity generation, the electricity that is sent is stored in the storage battery, in this this process; Forward gear reducer, positive direction actuation motor are not worked, and place unloaded state; After forward impeller proper functioning; The sub-fraction electricity of storage battery only is transferred to the reverse direction actuation motor through controller; Reverse direction actuation motor driving reverse gear retarder and then the rotating shaft of drive reverse impeller, reverse impeller rotation; In this process, reverse speedup generator is not worked, and the rotating speed of reverse impeller is confirmed, realized through controller according to the flow velocity that flows to flow sensor measures; Because the reverse impeller front and back that are rotated in of reverse impeller produce pressure reduction, strengthen and flow through the mass flow rate of forward impeller, thereby increased the merit that the forward impeller is absorbed.When reverse impeller was operated in the suitable rotational speed scope, the merit that the merit that reverse impeller consumed is increased less than the forward impeller had promptly improved the efficient of whole unit.When the direction of trend changes; Reverse impeller drives reverse speedup generator for electricity generation under trend drives; The electric sub-fraction that is produced is supplied with the positive direction actuation motor via storage battery, controller, and the forward impeller is used to improve the mass flow rate of reverse impeller by driving work.
When direction of tide flows to reverse impeller by the forward impeller; If flow to flow sensor measures to low excessively, the forward impeller of tidal current speed can't self-starting the time; The electricity of storage battery is through controller control; Be transferred to the positive direction actuation motor earlier, positive direction actuation motor driving forward gear reducer and then drive forward impeller shaft, the rotation of forward impeller, and make the forward wheel speed reach the working speed of low trend flow velocity; After the self-starting of forward impeller, controller stops to the power supply of positive direction actuation motor, and the forward impeller drives forward speedup generator for electricity generation under trend drives.At this moment, controller is given the power supply of reverse direction actuation motor, drives the reverse impeller rotation, is used to strengthen the mass flow rate that flows through the forward impeller.
The advantage of the utility model comprises: 1 is fit to reversing current, has identical efficient and power for two-way trend, has guaranteed that the horizontal axis trend can be operated in the design conditions point by the water wheels unit under the reversing current, and working stability is reliable; 2 for unidirectional trend, and an impeller makes the energy capture efficient of the energy capture efficient of whole unit greater than single impeller for another impeller increases mass flow rate; 3 when impeller can't self-starting under the low speed trend, can also impeller started and reaches working speed through drive motor; 4 since tidal current speed with tidal fluctuations and receive natural environment influence, trend can generate electricity unstable, and need change Ac into before being incorporated into the power networks, and carries out the electric power storage energy storage through zinc bromine accumulation energy battery or all-vanadium liquid flow energy storage battery, and electric energy is stablized, and conveniently is incorporated into the power networks.
The utility model is fit to reversing current, and single-machine capacity is big, efficient is high, and has the self-startup ability under the various flow velocitys, simple appearance, working stability, stable, the cleanliness without any pollution of electric energy output.
Description of drawings
Fig. 1 is existing bi-reverse folding-type cross shaft tidal stream energy hydroturbine structural representation.
Fig. 2 is the positive and negative rotation bilobed wheel horizontal axis tidal power generating unit structural representation of the utility model.
Fig. 3 is that integrated power train is unified side structures arranged schematic representation.
Among the figure: 1 forward impeller; 2 forward impeller blades; 3 reverse impellers; 4 reverse impeller blades;
5 integrated transmission systems; 5-1 forward impeller shaft; 5-2 forward speedup generator; The 5-3 storage battery;
The reverse speedup generator of 5-4; The rotating shaft of 5-5 reverse impeller; 5-6 forward gear reducer;
5-7 positive direction actuation motor; The 5-8 controller; 5-9 reverse direction actuation motor; 5-10 reverse gear retarder;
6 flow to flow transducer; 7 tower seats.
Embodiment
As shown in the figure; The positive and negative rotation bilobed wheel horizontal axis tidal power generating unit of the utility model by forward impeller 1, forward impeller blade 2, reverse impeller 3, reverse impeller blade 4, integrated transmission system 5, flow to flow transducer 6 and tower seat 7 is formed, integrated transmission system is made up of forward impeller shaft 5-1, forward speedup generator 5-2, storage battery 5-3, reverse speedup generator 5-4, reverse impeller rotating shaft 5-5, forward gear reducer 5-6, positive direction actuation motor 5-7, controller 5-8, reverse direction actuation motor 5-9, reverse gear retarder 5-10.
(1) according to marine site reversing current flow velocity, tip speed ratio, aerofoil profile hydraulic performance parameter etc. are calculated forward impeller 1 energy capture efficient with the tip-speed ratio Changing Pattern, and definite forward impeller blade 2 optimum embedding angle degree, and calculated flow is crossed the mass flow rate of impeller 1.
When (2) calculating reverse impeller 3 rotations for the influence of the mass flow rate that flows through forward impeller 1; Power consumption when calculating reverse impeller 3 rotations; Be up to target with reverse impeller 3 rotations mass flow rate least in power-consuming, that flow through forward impeller 1; Optimize the working speed of reverse impeller 3 and confirm its best effort scope, and the distance between definite forward impeller 1 and the reverse impeller 3; Confirm the arrangement of integrated transmission system at last.
Claims (5)
1. positive and negative rotation bilobed wheel horizontal axis tidal power generating unit; It is characterized in that; Comprise forward impeller, forward impeller blade, reverse impeller, reverse impeller blade, integrated transmission system, flow to flow transducer and tower seat, wherein integrated transmission system comprises forward impeller shaft, forward speedup generator, storage battery, reverse speedup generator, reverse impeller rotating shaft, forward gear reducer, positive direction actuation motor, controller, reverse direction actuation motor and reverse gear retarder;
Described integrated transmission system flows to the top that flow transducer is positioned at integrated transmission system between forward impeller and reverse impeller, integrated transmission system is supported on the tower seat; Forward impeller, forward impeller shaft and forward speedup generator coaxle, reverse impeller, reverse impeller rotating shaft and reverse speedup generator coaxle, the central axes of forward speedup generator and reverse speedup generator;
Described forward impeller blade is fixed on the forward impeller, and the reverse impeller vanes fixed is on reverse impeller, and forward impeller and reverse impeller are imported in the integrated transmission system through forward impeller shaft and reverse impeller rotating shaft respectively; The forward impeller shaft connects forward speedup generator, and the reverse impeller rotating shaft connects reverse speedup generator; Between forward speedup generator and the storage battery, between reverse speedup generator and the storage battery, between storage battery and the controller, between controller and the positive direction actuation motor, all adopt cable to connect between controller and the reverse direction actuation motor; The positive direction actuation motor drives the forward impeller shaft via the forward gear reducer, and the reverse direction actuation motor drives the reverse impeller rotating shaft via the reverse gear retarder;
Described forward impeller and reverse impeller are identical, and the number of blade is 2-6, along passing through forward impeller shaft and reverse impeller rotating shaft mid point and installing perpendicular to the plane symmetry of forward impeller shaft.
2. positive and negative rotation bilobed wheel horizontal axis tidal power generating unit according to claim 1 is characterized in that, the blade of forward impeller blade and reverse impeller blade is that prismatic blade, twisted blade, band are plunderred one or more in the blade.
3. positive and negative rotation bilobed wheel horizontal axis tidal power generating unit according to claim 1 and 2 is characterized in that, described storage battery adopts zinc bromine accumulation energy battery or all-vanadium liquid flow energy storage battery.
4. positive and negative rotation bilobed wheel horizontal axis tidal power generating unit according to claim 1 and 2; It is characterized in that; Integrated transmission system is positioned at a side of forward impeller and reverse impeller; The reverse impeller rotating shaft is a hollow shaft, through the supporting of transition bearing, constitutes the suit dual-rotor structure between reverse impeller rotating shaft internal diameter and the forward impeller shaft external diameter.
5. positive and negative rotation bilobed wheel horizontal axis tidal power generating unit according to claim 3; It is characterized in that; Integrated transmission system is positioned at a side of forward impeller and reverse impeller; The reverse impeller rotating shaft is a hollow shaft, through the supporting of transition bearing, constitutes the suit dual-rotor structure between reverse impeller rotating shaft internal diameter and the forward impeller shaft external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235964U CN202148978U (en) | 2011-07-06 | 2011-07-06 | Forward/reverse rotation double impellers mounted on horizontal shaft tide generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235964U CN202148978U (en) | 2011-07-06 | 2011-07-06 | Forward/reverse rotation double impellers mounted on horizontal shaft tide generating set |
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| Publication Number | Publication Date |
|---|---|
| CN202148978U true CN202148978U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120235964U Expired - Fee Related CN202148978U (en) | 2011-07-06 | 2011-07-06 | Forward/reverse rotation double impellers mounted on horizontal shaft tide generating set |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278262A (en) * | 2011-07-06 | 2011-12-14 | 大连理工大学 | Forward/reverse rotating bilobed wheel horizontal shaft tide power unit |
| CN102953922A (en) * | 2012-11-26 | 2013-03-06 | 梁林杰 | Two-way turbine ocean current power generator |
| CN103089533A (en) * | 2012-03-09 | 2013-05-08 | 大连理工大学 | Tidal current energy unsteady state pressurization sea water desalination and generating set |
| CN103967697A (en) * | 2014-05-09 | 2014-08-06 | 河海大学 | Ocean current energy power generation device and unit thereof |
| CN104141584A (en) * | 2014-07-15 | 2014-11-12 | 杭州江河水电科技有限公司 | Single-pile four-impeller horizontal shaft passive self-variable-pitch two-way tide power generator set |
| WO2015152807A1 (en) * | 2014-04-04 | 2015-10-08 | Aktiebolaget Skf | Submerged system for converting a tidal water flow to electrical energy |
-
2011
- 2011-07-06 CN CN201120235964U patent/CN202148978U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278262A (en) * | 2011-07-06 | 2011-12-14 | 大连理工大学 | Forward/reverse rotating bilobed wheel horizontal shaft tide power unit |
| CN103089533A (en) * | 2012-03-09 | 2013-05-08 | 大连理工大学 | Tidal current energy unsteady state pressurization sea water desalination and generating set |
| CN103089533B (en) * | 2012-03-09 | 2015-01-07 | 大连理工大学 | Tidal current energy unsteady state pressurization sea water desalination and generating set |
| CN102953922A (en) * | 2012-11-26 | 2013-03-06 | 梁林杰 | Two-way turbine ocean current power generator |
| WO2015152807A1 (en) * | 2014-04-04 | 2015-10-08 | Aktiebolaget Skf | Submerged system for converting a tidal water flow to electrical energy |
| CN103967697A (en) * | 2014-05-09 | 2014-08-06 | 河海大学 | Ocean current energy power generation device and unit thereof |
| CN103967697B (en) * | 2014-05-09 | 2016-06-08 | 河海大学 | A kind of ocean current energy generator and unit thereof |
| CN104141584A (en) * | 2014-07-15 | 2014-11-12 | 杭州江河水电科技有限公司 | Single-pile four-impeller horizontal shaft passive self-variable-pitch two-way tide power generator set |
| CN104141584B (en) * | 2014-07-15 | 2016-09-14 | 杭州江河水电科技有限公司 | Single pile four impeller trunnion axis is passive from displacement bi-directional current generating set |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20120706 |