CN204253270U - A kind of directly driving type independent pitch is apart from marine tidal-current energy water turbine - Google Patents
A kind of directly driving type independent pitch is apart from marine tidal-current energy water turbine Download PDFInfo
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- CN204253270U CN204253270U CN201420697460.XU CN201420697460U CN204253270U CN 204253270 U CN204253270 U CN 204253270U CN 201420697460 U CN201420697460 U CN 201420697460U CN 204253270 U CN204253270 U CN 204253270U
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- blade
- encoder
- pitch
- wheel hub
- pitch motor
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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
- 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 provides a kind of directly driving type independent pitch apart from marine tidal-current energy water turbine, comprise cowling, wheel hub, evenly be arranged on the blade on wheel hub, generator and pylon, the bottom of root of blade is fixedly connected with the inner ring of internal gear type bearing, the outer ring of internal gear type bearing is fixedly connected with wheel hub, the lower end of internal gear type bearing is connected chassis, pitch motor is installed in lower end, chassis, the lower end of pitch motor arranges pitch motor encoder, the output shaft of pitch motor is through the mounting hole that chassis is arranged, and output shaft is set with small gear, small gear engages with the internal ring gear of described internal gear type bearing, the neutral position of the root of blade arranges blade encoder, blade encoder is connected with control circuit by wire with pitch motor encoder.The utility model compact structure, volume are little, and the pitch mechanism design that each motor can be utilized independently to control each blade drift angle can make corresponding change to complicated water (flow) direction in time, accurately.
Description
Technical field
The utility model relates to a kind of marine tidal-current energy water turbine, particularly relates to a kind of directly driving type independent pitch apart from marine tidal-current energy water turbine.
Background technique
Marine tidal-current energy water turbine is that a kind of kinetic energy utilizing marine stream to produce drives the impeller (comprising blade and wheel hub) of unit rotate and send the equipment of electric energy.Marine tidal-current energy water turbine rises at the beginning of 21 century in the research of every country, the working principle of this equipment and the working principle of traditional wind group very similar.Averag density due to seawater is about 800 times of air, so two kinds of units are under the condition of equal-wattage grade, the overall dimensions of marine tidal-current energy power generation hydraulic unit is much less than the overall dimensions of wind power generating set.
Usual marine tidal-current energy power generation hydraulic unit is arranged in the water channel with reversing current dynamic response, the direct navigation channel of the estuary in such as river course or two island.The basic of existing tidal current energy water turbine is made up of parts such as impeller, speeder, generator and bases.First be feather problem.Impeller utilizes blade to accept current scour and produces kinetic energy, due to the direction-agile of current, needs design blade pitch device adjusting vane drift angle to make blade be in best capacitation position.Publication number CN201110165738.X proposes a kind of actuating motor and directly drives the synchronous change oar of each blade rotation to drive by the engagement driving of bevel gear.This mode structure is simple, reliability is high, various control easy to implement, in the marine tidal-current energy changing environment of complexity, vane change device requires all very high for driving force and change propeller angle etc., the change oar of this form makes the inaccuracy of blade pitch angular transformation, and the gap of bevel gear and blade bevel gear not easily regulates.A kind of the independent pitch distance system and the drive unit that are applied to blower fan are proposed in publication number CN201410018223.0, three pitch motors are utilized to drive three blades, realize controlling the independent drift angle of each blade, this change oar mode is applicable to the award setting of the turbine blade applied in complicated tidal environment very much, but because independent design three variation paddle structures cause impeller hub bulky, weight increases, and cantilever stiffness when unit is fixed dies down.The composition form of secondly traditional tidal current energy water turbine causes unit volume huge, and main shaft is long, and intensity is not high; Because water turbine works under water, the sealing difficulty between its each several part is also very large.
Summary of the invention
The purpose of this utility model is the directly driving type independent pitch distance marine tidal-current energy water turbine that a kind of blade can independently rotate, volume is little in order to provide.
The purpose of this utility model is achieved in that and comprises cowling, the wheel hub be fixedly connected with cowling, evenly be arranged on the blade on wheel hub, the generator be fixedly connected with wheel hub by flange plate and the pylon be fixedly connected with generator, also comprise internal gear type bearing, the bottom of described root of blade is fixedly connected with the inner ring of internal gear type bearing, the outer ring of internal gear type bearing is fixedly connected with wheel hub, the lower end of internal gear type bearing is connected chassis, pitch motor is installed in lower end, chassis, the lower end of pitch motor arranges pitch motor encoder, the output shaft of pitch motor is through the mounting hole that chassis is arranged, and output shaft is set with small gear, small gear engages with the internal ring gear of described internal gear type bearing, the neutral position of the root of described blade arranges blade encoder, blade encoder is connected with control circuit by wire with pitch motor encoder.
The utility model also comprises some structure characteristics like this:
1. described in, generator comprises generator casing body, main shaft, the stator being sleeved on the rotor on main shaft and being arranged on generator casing body, the described generator be fixedly connected with wheel hub by flange plate refers to that main shaft is fixedly connected with wheel hub by flange plate, the center of described main shaft arranges through hole, the end of main shaft arranges conducting slip ring, the end of conducting slip ring arranges spindle encoder, spindle encoder is connected with control circuit by wire, described blade encoder and pitch motor encoder to be connected with control circuit by wire and to refer to that the wire of blade encoder and pitch motor encoder is connected with control circuit through described through hole and conducting slip ring, the end of main shaft is also set with brake disc
2. the number of blade described in is 2-4.
Compared with prior art, the beneficial effects of the utility model are: the utility model provides a kind of blade being applied to water turbine set to carry out independent rotation, the control mode be independent of each other, each pitch motor controls the propeller pitch angle of each blade, and utilize each motor independently control each blade drift angle pitch mechanism design can be timely, accurately corresponding change is made to complicated water (flow) direction, simultaneously, the outer gearing driven Design driven by change oar is Inside gear drive, reduce turbine wheel hub volume, thus control and autoconvective reduction wheel hub volume of simultaneously trying one's best at the power realizing marine tidal-current energy power generation hydraulic unit, increase unit integral rigidity.The design of direct drive generator simultaneously simplifies the composition of marine tidal-current energy power generation hydraulic unit, casts out speeder, reduces main axis length and unit volume, improves the stability of whole unit, reliability and working life.The compact structure of the utility model unit, be easy to install, debugging, be easy in seawater construction, the lower reduction unit of the cost in lifting and maintenance manufactures and construction cost, is the Main Trends of The Development of marine tidal-current energy power generation hydraulic unit from now on.And speeder is saved in the design of synchronous generator cabinet of the present utility model, simplify water turbine overall mechanical design, weight reduction, improves main axe intensity, is convenient to unit maintenance.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is the structural drawing of impeller wheel portion of the present utility model;
Fig. 3 is the structural drawing of master section of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Composition graphs 1, Fig. 2 and Fig. 3, the utility model comprises impeller A, generator B and pylon C, comprise cowling 1 specifically, the wheel hub 3 be fixedly connected with cowling 1, evenly be arranged on the blade 4 on wheel hub 3, the generator B be fixedly connected with wheel hub 3 by the flange plate 11 and pylon C be fixedly connected with generator B, also comprise internal gear type bearing 6, the bottom of described blade 4 root is fixedly connected with the inner ring of internal gear type bearing 6, the outer ring of internal gear type bearing 6 is fixedly connected with wheel hub 3, the lower end of internal gear type bearing 6 is connected chassis 9, pitch motor 8 is installed in lower end, chassis 9, the lower end of pitch motor 8 arranges pitch motor encoder 22, the output shaft of pitch motor 8 is through the mounting hole that chassis 9 is arranged, and output shaft is set with small gear 7, small gear 7 engages with the internal ring gear of described internal gear type bearing 6, like this by the ring gear Inside gear drive of the small gear 7 on pitch motor 8 output shaft with internal gear type bearing 6, relatively rotating of blade 4 and wheel hub 3 can be realized, and then the independent regulation completed blade 4 angle, the neutral position of the root of described blade 4 arranges blade encoder 10, be used for measure blade 4 rotate angle, blade encoder 10 is connected with control circuit by wire with pitch motor encoder 22.The number of described blade 4 is 2-4, is evenly arranged on wheel hub.Described generator B comprises generator casing body 17, main shaft 15, the stator 16 being sleeved on the rotor 23 on main shaft 15 and being arranged on generator casing body 17, the described generator B be fixedly connected with wheel hub 3 by flange plate 11 refers to that main shaft 15 is fixedly connected with wheel hub 3 by flange plate 11, the center of described main shaft 15 arranges through hole, be mainly used to cabling, the end of main shaft 15 arranges conducting slip ring 20, the end of conducting slip ring 20 arranges spindle encoder 21, spindle encoder 21 is connected with control circuit by wire, described blade encoder 10 and pitch motor encoder 22 to be connected with control circuit by wire and to refer to that the wire of blade encoder 10 and pitch motor encoder 22 is connected with control circuit through described through hole and conducting slip ring 20, the end of main shaft 15 is also set with brake disc 18, when in the course of the work, there is fortuitous event, first blade 4 can be transferred to full feathering state, reduce impeller A rotating speed, then brake disc 18 is being passed through, impeller A is stopped operating.Simultaneously in main shaft 15 end, be connected to spindle encoder 21 by coupling shaft 19 and coupling, use the rotating speed measuring main shaft 18.
The wheel hub 3 that rotates through of blade 4 is fixedly connected with rotor 23 position being delivered to generator B with the main shaft 15 of generator B, rotate and produce electric energy.The utility model is designed to independent pitch mechanism, independent pitch motor 8 is utilized to control the propeller pitch angle of each blade 4, so just can connect a blade encoder 10 at each blade 4 root coupling, be used for measure blade 4 rotate angle, the controller feeding back to control circuit adjusts further.Light material material generally selected by the material of cowling 1, and it covers on outside front cover 2, reduces trend fluid resistance.
The utility model in the course of the work, by the rotation of pitch motor 8, reaches the change controlling blade 4 propeller pitch angle, each blade 4 can be rotated around its center axis, reach the effect of blade 7 being carried out to independent pitch.The angle of swing of pitch motor 8 is depended in the angle of revolution of blade 4, at each blade 4 root, with coupling, blade 4 root is connected with blade encoder 10, measures the change propeller angle of blade 4.The encoder 29 of pitch motor 8 self and the blade encoder 10 of blade 4 root play a part again inspection mutually simultaneously, when any one encoder lost efficacy, can control the propeller pitch angle of blade 4 with another encoder, also conveyed an alarm signal simultaneously, prompting maintenance man overhaul in time.
Deep trouth is had at wheel hub 3 end face, blade motive sealing 5 is housed, its effect prevents seawater in blade 4 rotation process, penetrate into impeller A inside, at generator casing body 17, the end of flange plate 11 is provided with spindle machine motive sealing 12, and some other junction plane, the O RunddichtringO of high-quality is all installed, enters in wheel hub 3 to prevent seawater.
After selecting the suitable depth of water, directly driving type independent pitch of the present utility model is arranged in the water channel with round flow characteristic apart from marine tidal-current energy water turbine, when strength of current reaches toggle speed, the pitch angle of blade 4 is adjusted near minimum value, the impeller that blade 4 is formed rotates under the impact of trend, is with engine alternator B to generate electricity by main shaft 15.When flow velocity exceedes nominal flow rate, the pitch angle of adjusting vane 4 thus control the output power of unit, to ensure that unit energy has stable power stage.When trend commutates, the pitch angle of blade 4 follows rotation 180 degree, and the bidirectional flow realizing unit runs.
Claims (3)
1. a directly driving type independent pitch is apart from marine tidal-current energy water turbine, it is characterized in that: comprise cowling, the wheel hub be fixedly connected with cowling, evenly be arranged on the blade on wheel hub, the generator be fixedly connected with wheel hub by flange plate and the pylon be fixedly connected with generator, also comprise internal gear type bearing, the bottom of described root of blade is fixedly connected with the inner ring of internal gear type bearing, the outer ring of internal gear type bearing is fixedly connected with wheel hub, the lower end of internal gear type bearing is connected chassis, pitch motor is installed in lower end, chassis, the lower end of pitch motor arranges pitch motor encoder, the output shaft of pitch motor is through the mounting hole that chassis is arranged, and output shaft is set with small gear, small gear engages with the internal ring gear of described internal gear type bearing, the neutral position of the root of described blade arranges blade encoder, blade encoder is connected with control circuit by wire with pitch motor encoder.
2. a kind of directly driving type independent pitch according to claim 1 is apart from marine tidal-current energy water turbine, it is characterized in that: described generator comprises generator casing body, main shaft, the stator being sleeved on the rotor on main shaft and being arranged on generator casing body, the described generator be fixedly connected with wheel hub by flange plate refers to that main shaft is fixedly connected with wheel hub by flange plate, the center of described main shaft arranges through hole, the end of main shaft arranges conducting slip ring, the end of conducting slip ring arranges spindle encoder, spindle encoder is connected with control circuit by wire, described blade encoder and pitch motor encoder to be connected with control circuit by wire and to refer to that the wire of blade encoder and pitch motor encoder is connected with control circuit through described through hole and conducting slip ring, the end of main shaft is also set with brake disc.
3. a kind of directly driving type independent pitch according to claim 1 and 2 is apart from marine tidal-current energy water turbine, it is characterized in that: the number of described blade is 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697460.XU CN204253270U (en) | 2014-11-20 | 2014-11-20 | A kind of directly driving type independent pitch is apart from marine tidal-current energy water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697460.XU CN204253270U (en) | 2014-11-20 | 2014-11-20 | A kind of directly driving type independent pitch is apart from marine tidal-current energy water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253270U true CN204253270U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420697460.XU Expired - Fee Related CN204253270U (en) | 2014-11-20 | 2014-11-20 | A kind of directly driving type independent pitch is apart from marine tidal-current energy water turbine |
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| Country | Link |
|---|---|
| CN (1) | CN204253270U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481790A (en) * | 2014-11-20 | 2015-04-01 | 哈尔滨工程大学 | Direct drive independent variable pitch tidal current energy electric generation hydraulic turbine |
| CN105863957A (en) * | 2016-05-17 | 2016-08-17 | 哈尔滨工业大学 | Variable-pitch high-power vertical axis wind power generating device and pneumatic starting-stopping control method |
| CN110017239A (en) * | 2019-04-26 | 2019-07-16 | 星沛科技(武汉)有限公司 | A kind of small head hydraulic turbine blade profile |
-
2014
- 2014-11-20 CN CN201420697460.XU patent/CN204253270U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481790A (en) * | 2014-11-20 | 2015-04-01 | 哈尔滨工程大学 | Direct drive independent variable pitch tidal current energy electric generation hydraulic turbine |
| CN105863957A (en) * | 2016-05-17 | 2016-08-17 | 哈尔滨工业大学 | Variable-pitch high-power vertical axis wind power generating device and pneumatic starting-stopping control method |
| CN105863957B (en) * | 2016-05-17 | 2019-01-08 | 哈尔滨工业大学 | A kind of variablepiston high-power vertical shaft wind power generation plant and pneumatic start-up and shut-down control method |
| CN110017239A (en) * | 2019-04-26 | 2019-07-16 | 星沛科技(武汉)有限公司 | A kind of small head hydraulic turbine blade profile |
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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: 20150408 Termination date: 20201120 |