CN1991164A - Generator for water current turbine with counter-rotating rotors. - Google Patents
Generator for water current turbine with counter-rotating rotors. Download PDFInfo
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- CN1991164A CN1991164A CNA2006100819032A CN200610081903A CN1991164A CN 1991164 A CN1991164 A CN 1991164A CN A2006100819032 A CNA2006100819032 A CN A2006100819032A CN 200610081903 A CN200610081903 A CN 200610081903A CN 1991164 A CN1991164 A CN 1991164A
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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
A generator for the use in production of electric energy from low speed water currents comprises a rotor 150 which is connected to a shaft 100 and is used for rotating relative to a stator 300 which rotates in opposite direction, a gear wheel 160 fixed connected to the shaft 100, and is characterized in that: at least two driving gear wheels 330 are respectively and rotatablely supported by each bearing 335 and are connected with corresponding rotor and stator by two gear rings and is configured to be able to transfer the rotation energy through the rotor shaft 150, therefore, the stator can rotate in opposite direction to rotating direction of the shaft when the shaft is rotating.
Description
This case is that to be called " being used for from the energy-producing device of current, generator and propeller parts ", application number be dividing an application of 028175603 application for a patent for invention to name.
Technical field
The present invention relates to be used for extracting the equipment of energy from water body.More particularly, the present invention relates to comprise on a kind of bottom that can be placed in below the water body or swim in being used for of member on the water body from the energy-producing device of the current of water body and a plurality of by this member supporting and by the generator set that can replace and a kind of rotatable parts of water current driven as the energy feeder in the generator set that is placed in water body, and a kind of generator, more particularly, be a kind of its stator and rotor generator rotated relative to one another.This device utilizes the current of the water surface below of ocean, sea, rivers or other water body.These current for example can be produced by tidal fluctuations and/or subaqua-tic geomorphology (as groove, riverbed or other throat under water).
Can produce electric power by using any energy according to generator of the present invention, but be particularly suitable for especially being driven by low speed water by wind-force and water current driven.This generator can also be used as motor.
Background technique
Current in the great water body are a kind of energy that can regenerate as the current that produced by tidal fluctuations, and this energy does not obtain utilizing in Norway so far as yet, utilize even these current can forecast along the Norwegian coast reliably with itself being easy to.
When the current in the great water body (as ocean or rivers) are forced through groove or other throat, flowing velocity will improve and will be collimated largely.Current in the center region of this throat will have the almost equal speed by whole cross section of discussing, and this means that it is favourable settling a generator in this zone.
Produce power has some known equipment and method from ocean current.
Norwegian patent applications 1,999 1984 (Hammerfest Str φ m) is described a kind of being used for from the device of ocean current and river generation electric power.Whole device is placed in the underwater and comprises a plurality of the have turbine of blade, a supporting system, a stop system and generators.The orientation of turbine shaft is perpendicular to the movement direction of water, and blade be wing, therefore no matter the movement direction of water how, this turbine all rotates along same direction.This turbine shaft is bearing on the framework of the buoyancy tank that is fixed in this supporting and axle pumping system.This device constitutes with assembly.This device has by buoyancy tank and is fixed on the positive buoyancy that undersurface stop system regulates, and makes this device remain on the underwater by this stop system.This device uses common blade.
Danish Patent 155454 (Hans Marius Pedersen) is described a kind of unsteady current power station, and the annular float that is anchored on by utilizing bitt on the anchor on the bottom is formed.All turbines all be can replace and be arranged on the common beam and can be swung upwards into the water surface as unit quilt in the zone that limits by this annular float.This power station can be around this bitt and moving, before the upper end of bitt is connected on the float and the lower end be fixed on the anchor.
U. S. Patent 5,440,176 describe a kind of hydroturbine device that can dive under water, comprise the outstanding turbine/generator that is held in the various combination of tension force leg type submersible type platform below.
It is well-known having the rotor of opposite rotation and the generator of stator.The propeller of coaxial opposite rotation is known in the wind technology field, especially as the measure of taking out the rotation energy of supplying with during by first propeller cavitation when air stream.These opposite propeller cavitations that rotate can be on the same side of generator, perhaps on its each side.These propeller cavitations or utilize gear to be connected on the same generator, perhaps propeller cavitation is connected on the rotor and another propeller cavitation is connected on the field coil.The previous known propeller cavitation that is connected the opposite rotation on the same generator needs complicated gear drive and transmission, and this causes the further loss of energy.From mechanical viewpoint, a propeller cavitation that is connected to the opposite rotation on rotor and the stator wants much simple, but these field coils need slip ring in known so far solution, and this may make this solution more complicated, in addition, also there are electric power and mechanical loss of energy.
Be arranged in the known case on each side of generator (and pylon) at propeller cavitation, as rule preferential be, the propeller cavitation in downstream should be less than the propeller cavitation of upstream, and sets and be installed under the bigger wind speed.
From current generation electric power the time, require alap propeller speed.Consequence is high torque and is difficult to the size of the master gear of a solution calmly.
Known generator solution has constant rotational velocity (the spacing adjustment of propeller cavitation) and static stator usually.This causes generator casing to have very large diameter, and that is disadvantageous.
U. S. Patent 4,291,233 describe a kind of the have rotor of opposite rotation and the wind turbine generator of stator.The next rotational energy of the turbine of the wind-drive of horizontal axis (propeller cavitation) is converted to two rotational energies the preferably concentric axle by a bevel gear driving mechanism from having preferably.This turbine shaft is attached on this bevel gear driving mechanism, the small gear up and down that latter's engagement is rotated in opposite direction.These two small gears are fixed on separately the axle, and these two axles preferably with one heart and arranged perpendicular.These two axles that rotate in opposite direction are connected on rotor and the stator separately.
DE 43 04 577 A1 describe a kind of wind turbine generator that two pairs of blades are arranged, and these two pairs of blades are connected on a rotor and the stator, so that rotate this two pairs of blades in opposite direction.Two pairs of blade arrangement play two opposite double-leaf propeller cavitations that rotate in the same side of generator.The document does not disclose interactional any further details of relevant stator and rotor.
DE 196 43 362 describes a kind of the have rotor of opposite rotation and the wind turbine generator of stator.Axle with the first end that is connected on turbine or the propeller cavitation is fixed on the rotor.Stator is fixed on second shaft end, the latter then be connected turbine or propeller cavitation on.Shaft end is bearing on the axle by bearing, makes rotor and stator to rotate relative to one another.
Also with reference to secondary rotor and auxiliary stator, its rotor is fixed on the shell.Therefore, parts and between relative velocity be parts and between half of speed.
Known opposite generator rotated can be divided into two classes:
(i) rotor and stator are driven by same turbine or propeller cavitation;
(ii) rotor and stator are supplied with the rotation energy by its turbine or propeller cavitation separately.
First kind generator can come illustration with US 4,291,233 (as mentioned above).The shortcoming of this generator is at the many energy of many transmission losses that are used for rotating on the contrary this stator.Secondly, this generator is very huge, and its manufacturing and maintenance may be very expensive.Therefore, need a kind of generator of simplifying type, its rotor and stator are driven by same turbine or propeller cavitation, and wherein use minimum gear transmission and do not use bevel gear.
The second class generator can come illustration with DE 196 43 362 (as mentioned above).The shortcoming of this generator is that this generator comprises an exterior part that does not rotate, and the staor winding of a routine is housed.This shell has the pedestal leg simultaneously and absorbs the total torque of half approximately.
The master cylinder supposition has magnet and passes through an independently axle rotation in both sides.The stator (or rotor) that another rotation is arranged in this rotor.The pedestal leg is not impacted in the torque that produces between inner most rotor and magnet rotor, but is absorbed by the magnetic field between the propeller cavitation.Therefore, need a kind of generator of simplifying type, the turbine separately of its rotor and stator or propeller cavitation to rotor and stator supply with rotate can, wherein this pedestal does not need to absorb the torque in the generator between rotor and the stator, and wherein the torque of propeller cavitation all is used to produce electric power.
Summary of the invention
Therefore, the invention provides being used for of a kind of the above-mentioned type from the energy-producing device of current, generator and propeller-type parts.
According to the inventive system comprises one on the bottom that can be placed in below the described water body member and a plurality of by this member supporting by the generator set that can replace of water current driven.This device is characterised in that, this member comprises a plurality ofly a node corresponding center being arranged and from the node element of its substantially horizontal arm that stretches out, and each node center is made the form that the lining that the water-bed adjustable leg of height uses is stretched in a confession.
Thereby according to the inventive system comprises one on the bottom (B) that can be placed in below the described water body member and a plurality of by this member supporting by the generator set that can replace of this water current driven, wherein the feature of this device is, it can utilize can be by described lining mobile described leg be placed on the bottom below the water body, and this device can selectively be guided to a selected height in the water body by means of these legs, so that make the position optimization of motor in water body, perhaps guide to water surface top and make described generator set be higher than the water surface.
Also comprise a kind of being used for according to device of the present invention from the energy-producing flotation device of the current of water body, this device comprises the support member by a plurality of floating member supportings, it is characterized in that, one end of a plurality of supporting arms can be attached on this member to pivot type rotation, and its other end is attached on separately the generator.In one embodiment, these supporting arms comprise at least one connecting part between its first end and second end, make that each supporting arm can be folding around this connecting part, so that when swinging with this member around the pivoting tie point of its first end thus, corresponding generator is risen from the water surface with supporting arm.
Comprise an axle according to rotatable parts of the present invention, this is installed on the lining on the axle that stretches to generator casing from a generator (not shown) and is intended for water current driven by water body, it is characterized in that these rotatable parts comprise:
An inner end piece that is installed at this attached place on the described axle to this lining;
A top that is installed in the place, outer end of described axle;
A plurality of at the parts section that is installed between described extremity piece and the top on the described axle.
In one embodiment, these parts sections can be installed in also can adjusting of described axle rotationally on every side.
In one embodiment, this top can rotate and adjust around described axle.
According to the present invention, also provide a kind of and comprise that is connected a generator that is used for the rotor that rotates with respect to an opposite stator that rotates on the axle.
Like this, this generator is characterised in that it comprises a driving component that is fixedly attached on this, and the latter is attached on the stator by driving mechanism, and thus, when this axle rotated, this stator can rotate along this opposite direction.
In one second embodiment, be characterised in that according to generator of the present invention this end of second is connected on the rotor frame that is bearing in vertically on first; And this end of first is bearing in the described rotor frame vertically.
Description of drawings
In following description with reference to the accompanying drawings, embodiments of the invention have been enumerated.Should be appreciated that the only typical example embodiment of illustration of these accompanying drawings, therefore should not limit the present invention.Same label is indicated same parts in the accompanying drawing, and these labels are used for following description too.
Fig. 1 is the perspective view according to first embodiment of a kind of tide-electricity power apparatus of the present invention.
Fig. 2 is the top view of this tide-electricity power apparatus.
Fig. 3 a～3c is the top view of this tide-electricity power apparatus among Fig. 2 and shows two node centers (Fig. 3 a and 3c) and an intermediate member (Fig. 3 b).
Fig. 4 is the side view of this tide-electricity power apparatus among Fig. 1.
Fig. 5 is a turbine part and an embodiment's of rotatable parts a perspective view, and represent that this engine section is equipped with the rotatable parts on each side that can be configured in described engine housing rotationally, and wherein these rotatable parts are opposite relative to one another rotations.
Fig. 6 a～6c is that these generators are in the position of decline according to second embodiment's of tide-electricity power apparatus of the present invention perspective view.
-Fig. 6 a is the end elevation of this device;
-Fig. 6 b is the side view of this device; And
-Fig. 6 c is the top view of this device.
Fig. 6 d represents the device from Fig. 6 a～6b that an end is seen, these generators are in the position of withdrawal.
Fig. 7 is the perspective view according to first embodiment of a kind of rotatable parts of the present invention.
Fig. 8 a is a kind of simplification sectional view of parts section of rotation; Fig. 8 b is the top view according to a kind of rotatable parts of the present invention.
Fig. 9 is the perspective view according to second embodiment of rotatable parts of the present invention.
Figure 10 is the perspective view according to the 3rd embodiment of rotatable parts of the present invention.
Figure 11 represents first embodiment according to generator of the present invention.
Figure 12 represents second embodiment according to generator of the present invention.
Embodiment
In one embodiment, according to the member that the inventive system comprises on a kind of bottom B that can be placed in water surface S below.The a plurality of generator set that can replace 750 of this member supporting by water current driven.The member of this device by a plurality of node elements that a node corresponding center arranged 700 with constitute from its substantially horizontal supporting member 720 that stretches out and link 730.Lining up and down 711,712 towards leg 760 usefulness that can regulate height that bottom B extends passes each node center.
In order to produce and fluid dynamic reason, these arms, leg, the link that can select and elongated supporting member are all made the tubular element form.Other sectional shape (as oval, rectangle) and configuration (as lattice structure) should be regarded as within the scope of the present invention, even these shapes and configuration are unsatisfactory.
For the ease of this device install and settling again subsequently during move, these legs comprise one or more cabins that can ballast.Simultaneously, these supporting members and link constitute the part that floats.When leg 760 was removed ballast, this device can move.When leg 760 during by ballasting, this device is static and working under precondition, is used for the purpose of its design and does not need additional anchor.
When operation, each single generator set should normally be fixedly mounted on this supporting member, and the rotating component of generator should depend on water (flow) direction along rotating along counter-clockwise both direction.But in one embodiment, generator casing can be supported on pivot type rotation ground around a vertical axis at the free end of accordingly vertical supporting member.
Fig. 1 and Fig. 2 represent a kind of device that utilizes the tie point 740 of respective number to be assembled into by three node elements 700.This device is equilateral triangle, leg 760 of every nook and cranny configuration.Such configuration is favourable, because this device is static regularly when it during towards the bottom ballasting.
In order to cover big as far as possible sectional area, generator set is configured to overlap each other basically by the single rotational plane of the rotation formation of rotating component 400.Like this, the water of mobile minimum flow around generator.
Though each generator set has two or more rotatable parts (see figure 1)s usually, generator set is only equipped rotatable parts 400 and is also belonged in the scope of the present invention, and these also can be configured in each side (see figure 5) of generator frame.In this case, yes reciprocally rotates for these rotatable parts.
Aspect, a center of the present invention is that this device can be placed on the B of bottom by leg 760.These legs can move by lining 711,712, make this device can utilize these legs selectively to bring a selected height in the water body into.Such " jack-up " principle is known, but is not relevant with the related device of the application.Because can regulate the height of this device in water, these generators can easily be raised on the water surface so that safeguard, repair or replace.Secondly, the arrangement of generator in water is best with respect to the present situation and water-bed landform.Use the leg that can regulate of the present invention, this device can easily be installed on the very uneven bottom.
In another embodiment, according to the inventive system comprises the turbine that is placed in an opposite rotation on the steel member that floats in the water, referring to Fig. 6 a-6b.
This device comprises a platform 620 that a plurality of float parts 610 are arranged, and preferably there is a float part 610 every nook and cranny, as among Fig. 6 c as seen, therefore utilize the displacement of minimum just can satisfy the requirement of the stability of side direction and vertical two aspects.Each keeps a generator 752 and two turbines in its side a plurality of supporting arm that stretches out from the every side of platform 615, and is fixed on the vertical pipe, and the latter is fixed on again on all four floats.These supporting arms approximately are being equipped with movable joint to the attachment point place at the first half place.The operation of supporting arm realizes with hydraulic system.
This configuration allows to utilize anchor (not shown) and chain 617 to carry out known standard grappling along both direction: or along one or two anchor of each direction, or keep two platforms along anchor of each direction.This means that these platforms can closely not hinder each other mutually longitudinally with the required separation distance grappling when turbine moves.By some unit of grappling abreast, lateral distance also can utilize chain to adjust and fix.
After grappling was finished, chain cutting machine and anchor winch can be removed and be used for next platform etc.The maintenance period and optionally when moving on to place's maintain/repair facility (as per 3 years) the anchor winch put back to and chain is reduced to the bottom.When reinstalling, chain is drawn in the platform also attached again with winch.
The production load that utilization comes from turbine is come along each direction these anchors of weighing.In the opposite side of anchor load, the sagging of chain strained with winch, and when current rotate, produces anchor load again on opposite side.By this way, when current are mobile along both direction, obtain a fixing and stable position.
If production load is owing to contingent control system fault becomes very big, these anchors may become flexible so that load increases, and this is not a major break down so.Or suspension rod may be discharged into the water surface (just in case the control of turbine or generator is broken down or is out of joint) automatically.Because generator and turbine have reliable buoyancy in water, reaching this stop position does not need a large amount of power.
Also can see on such turbine, having the dynamic power effect of highly significant, and this power transfers to produce vibration and tired.Be fixedly mounted on the bottom on compare, a unsteady platform will produce sizable damping to such vibration.Therefore, can not run into same tired danger.
Because the unsteady shallow draft of platform (for example only 1.5 meters), so supporting arm 615 and turbine can easily move into platform side with " position of cultrating " respect to one another, and transportation or to be drawn in the floating position will be very simple.
If remove four propeller blades, whole equipment can easily be placed on most of slideways.Therefore, maintenance can be simplified (becoming possibility) in the water, and working life can significant prolongation.
In second stage, this produces huge second-hand and is worth, because it can move, but also because the whole economy of design philosophy is better than from the bottom the fixedly economy of the single pile of grappling.
The present invention also comprises rotatable parts 400, is designed for by the water current driven in the water body and rotates, and works to be placed in the energy feeder of the generator set in the water body.As shown in Fig. 7,9,10, these rotatable parts are set up around an axle 405, and this axle (preferably with the right angle) is installed on the lining on the generator shaft.According to the rotatable parts of one embodiment of the present of invention comprise one axle 405 attach to this lining place be installed in inner end piece 407 on the axle 405, top 406 that is installed in this place, outer end and a plurality of can be installed in rotationally inner 407 and top 406 between axle 405 on parts section 410 (referring to Fig. 7).
In the embodiment shown in Fig. 7, each parts section 410 be can single selectively pivot type rotation and can center on described axial adjustment so that these such rotatable parts can be taked the spacing of the best with respect to current.
Fig. 9 represents another embodiment of these rotatable parts, and it includes only a parts section 410 that is fixedly mounted on the axle 405.In this embodiment, top 406 pivot type rotation and can center on an axial adjustment selectively.
Figure 10 represents the another embodiment of these rotatable parts, and it includes only one and is fixedly mounted between the component region of axle on 405 410.In this embodiment, top 406 also is fixedly mounted on this axle.
410 comprise at least one servorudder 411,412 between each component region, and they can be installed on the edge, front and back of parts section rotationally by rudderpost 413 separately.This can see from Fig. 7 and Figure 10.Servorudder 411,412 can utilize driver 415 separately and rotate selectively and independently of each other, and can turn to a prespecified range (± β
1, ± β
2) in any angle, thereby get optimal operations angle with respect to current.
Also comprise a generator according to device of the present invention, describe this generator referring now to Figure 11 and Figure 12.
Basic thought of the present invention is on the basis of a generator that directly drives, to make up a low-down input speed (actual torque) and a big relative velocity (25rpm when being 10rpm as input shaft) by this stator of opposite rotation.Also comprise thrust bearing.
Figure 11 represents according to generator of the present invention a type.Axle 100 with adpting flange 102 is by radially thrust bearing 110,120 supporting.If this generator for electricity generation, flange 102 can be connected on the propeller cavitation.Rotor 150 is fixedly attached on this axle.In addition, a gear 160 also is connected on this axle.
Principle shows, this stator usually can be to rotate greater than the speed of the rotor opposite direction along rotor.Therefore, produce the speed that relatively rotates greater than the input shaft twice.This feasible optimum speed that can use the propeller cavitation that drives generator.This means that for the number and the frequency that obtain the essential utmost point, this stator diameter can be done quite for a short time, and in order to produce as far as possible little resistance and as far as possible little unfavorable current in water, it is minimum that the diameter of machine casing keeps.(when current changed direction, propeller cavitation was alternately on a side or opposite side of machine casing.) because under any circumstance in such generating AC voltage be subjected to rectification so that be converted into interchange subsequently, so do not need constant frequency.Different with the variation in tide cycle, the speed that requires to act on the propeller on the generator is the maximal efficiency (maximum values between 10 to 15rpm) between from the approximate zero to the top speed.
Figure 12 represents the generator according to another type of the present invention.This generator comprises a rotor 550 that is connected in first 500, is used for rotating with respect to a stator 800 that is connected in second 820 rotation, and rotor 550 and stator 800 have bearing 510,815 separately.
An end of second 820 is connected on the rotor frame by flange 804, be bearing in vertically on first 500 by stator bearing 810, and an end of first 500 is bearing on the described rotor frame vertically by another stator bearing 810.
Can be connected on first propeller cavitation or the turbine by link 502 for first 500, and second 800 can be connected on the second screw thread oar or the turbine by link 802.Slip ring 890 known per se is installed on the rotor frame.
The advantage that the conventional generator that following example explanation uses the generator of the direct driving with opposite rotation to have same diameter and output with there not being opposite the rotation is compared.
Have advantage in the mechanical gear solution between generator and the propeller cavitation during in quite little output, the generator that wherein can use a standard quality to produce spool has quite high speed (greater than 20～30rpm) and import (drivings).
The technology of known direct driving generator is suitable for bigger output most, wherein the big diameter of generator itself and weight particular importance not.If deduction gear weight, if input speed is not low especially, gross weight is still favourable so.Though do not need constant frequency, " air clearance speed " and area will determine size (base of design is provided) for diameter and width (generator length).
If the direct generator that drives is respectively 10rpm with for example rotor and stator and rotates on the contrary, this will provide the speed that relatively rotates of spinner velocity and stator speed sum in the air clearance so, be 20rpm in this case, but that speed is easy between rotor and stator is inequality.
Suppose that the generator specification is 350KW, length is 0.75 meter and actuating speed is 12.5rpm, and so required diameter is calculated on the basis of following formula:
P＝K×D
2Ln
Wherein: P is output (KW)
K is a steady state value for the member of given kind, is set in 2.2 under this situation
D is air clearance diameter (rice)
L is the length (rice) of rotor and/or stator
N is speed (rpm)
The air clearance diameter is 4.12 meters in the standard solution of enumerating.The magnet gross area is 9.7m
2
If stator and rotor rotate in opposite direction, relative velocity will be 25rpm.Air clearance diameter thereby can be reduced to 2.91 meters.When bigger output, difference even bigger.
Or gear drive (the contrary gear-box between rotor and the stator) can be provided by a train of gearings.Gear ratio 1: 1.5 o'clock, relative velocity was 31.25rpm.
The air clearance diameter can be kept to 2.60 meters and the magnet area can be kept to 6.12m under this speed
2
Draw electric current and must realize from having opposite generator rotated, but must use known solution with slip ring.
If this phase reversal is employed splitting operation arrangement-two propeller cavitation and driven the generator (see figure 2), one is rotor and another is a stator, can obtain following data so:
1. generator output is set at 2 * 350KW=700KW in this example.
2.12.5rpm propeller speed select-this relatively provides 25rpm.
3. the generator length setting is 1.0 meters.
Diameter to this solution air clearance is 3.18 meters, and the magnet area is 9.78m
2This means, be that 4.12 meters and length are that 0.75 meter the permanent magnet of generator of 350KW of direct driving of standard and the area and the expense of coil equate with diameter.
Though do not carry out scrutinizing of all details, what such generator was operated the analysis showed that in advance compare with the notion that comprises " gear solution ", electricity price reduces by 10% approximately.This has 100% blind area for No. 2 propeller cavitation, and when the distance between these propeller cavitations was 10 meters, that was unpractical.
Secondly, when along No. 1 propeller cavitation with No. 2 propeller cavitation opposite direction rotation water body being rotated, No. 2 propeller cavitation may be positive output.
This solution is significantly improved in operating security with aspect safeguarding.Saving is estimated as 0.0016 US dollar of (0.5 φ re) every KWh/, the estimation that this is perhaps still conservative, and wherein φ re is the monetary unit of Norway, equals 1/100 Krona.
Allow to use big torque according to generator of the present invention.
Use big torque that propeller cavitation (rotating component) and generator are formed optimum efficiency.Save gear and cause reducing loss greater than 3%.
Secondly, bigger generator capacity can be installed.
The risk of transshipping in the incident of the destruction of the control system of controlling torque, thrust and output or fault is less.
Compare with existing generator solution, the maintenance cost of this device reduces.
Traditionally, the generator of gear or directly driving absorbs torque from propeller cavitation just.Secondly, one or more just thrust bearings absorb axial force.Therefore, these power pass to machine casing by pedestal and then pass to the steel member.
For wind turbine, such torque will provide the load of variation to the bearing of " engine compartment ", and formation is the rotating ring bearing of an exposed components.
Because two propeller cavitations rotate in opposite direction, so the revolution of single adjusting color screw oar will allow the equal torque of maintenance on two axles, though a propeller cavitation is operated in the blind area of another propeller cavitation.
This solution means that torque cancels each other, and the torsion load on the fixing supporting member disappears.Simultaneously, the pulsating load of coming from propeller cavitation is subjected to the buffering of " magnetic pad " between rotor and the stator.
Should be noted that also according to the construction of generator of the present invention will be very simple.This is based on prefabricated winding and inexpensive permanent magnet to a great extent.
Be used for generating though be described as according to generator of the present invention among the application, this generator also can be used as motor, wherein, for example axle 500,820 each drive opposite propeller cavitations that rotate.This kind unit can be used in aerial and the water, and can be specially adapted to the so-called cabin propulsion device in steamer and other ship.
Component list among the figure
Original after changing
600 control rooms
610 buoyant member
615 supporting arms
616 joint portions
617 tie downs
620 supporting members
700 node spares
710 struts
Lining on 711
712 times linings
720 horizontal supports
730 connectors
740 intermediate connectors
749 vertical connectors
750 generating sets
752 generator casings
400 rotating components
405
406 tops
407 in the face of inner lining
410 parts sections
Servorudder before 411
412 back servorudders
413 rudderposts
Sealing between 414 parts sections and the servorudder
415 drivers
The B bottom
The S water surface
760 legs
100
102 adpting flanges
110 bearings (fixing)
120 bearings
150 rotors
160 gears
300 stators
310 stator bearings
320 stator tooth wheel rims
330 stator actuation gears
335 actuation gear bearings
350 permanent magnets
390 slip rings
500 rotor shafts
502 adpting flanges
510 bearings (fixing)
550 rotors
800 stators
802 adpting flanges
804 flanges
810 stator bearings
815 bearings (fixing)
820 rotor bearings
890 slip rings
Claims (4)
1. one kind is used for from the generator of low speed water production electric energy, comprise that one is connected axle and is used for the rotor (150) that rotates with respect to an opposite stator (300) that rotates on (100), a gear (160) that is fixedly connected on this axle (100), it is characterized in that, at least 2 actuation gears (330) are by separately bearing (335) rotatably support, and connect with corresponding rotor and stator through two gear rings, it is mounted to and can transmits rotating energy from the axle (150) of described rotor, thus, when this axle rotated, this stator can rotate along this opposite direction.
2. the described generator of claim 1 is characterized in that, driving component (160) is fixedly mounted on this axle.
3. one kind is used for from the generator of low speed water production electric energy, comprise that one is connected and is used on one first (500) with respect to the rotatable stator housing (800) on second end that is connected one second (820) and rotor rotated (550), described first and second bearing (510 that has separately, 815), described diaxon is suitable for (502,802) be connected to propeller cavitation separately or homologue in the end separately of directed in opposite directions, described generator is characterised in that: first (500) at one end are supported in the interior supporting bearing (810) of stator case (800) vertically, with second (820) coaxial line, described rotor frame (800), distally at second (820) second end, be fixedly supported upon on first (500), described axially mounting and described supporting bearing are in the separation both sides of described rotor.
4. one kind according to the described generator of claim 3, it is characterized in that first (500) are connected on first propeller cavitation or the turbine by a connection piece (502), and second (800) is connected on second propeller cavitation or the turbine by a connection piece (802).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20013437A NO321534B1 (en) | 2001-07-11 | 2001-07-11 | Plants for the production of energy from streams in water |
| NO20013437 | 2001-07-11 | ||
| NO20020800 | 2002-02-18 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028175603A Division CN1313729C (en) | 2001-07-11 | 2002-07-08 | Plant, generator and propeller element for generating energy from watercurrents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1991164A true CN1991164A (en) | 2007-07-04 |
Family
ID=19912659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100819032A Pending CN1991164A (en) | 2001-07-11 | 2002-07-08 | Generator for water current turbine with counter-rotating rotors. |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1991164A (en) |
| NO (1) | NO321534B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545579A (en) * | 2016-01-30 | 2016-05-04 | 大连金州华兴机械加工厂 | Sea tide power generation device |
| CN105899802A (en) * | 2013-12-18 | 2016-08-24 | 阿尔廷·普普勒库 | Crossflow axes rotary mechanical devices with dynamic increased swept area |
-
2001
- 2001-07-11 NO NO20013437A patent/NO321534B1/en not_active IP Right Cessation
-
2002
- 2002-07-08 CN CNA2006100819032A patent/CN1991164A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105899802A (en) * | 2013-12-18 | 2016-08-24 | 阿尔廷·普普勒库 | Crossflow axes rotary mechanical devices with dynamic increased swept area |
| CN105545579A (en) * | 2016-01-30 | 2016-05-04 | 大连金州华兴机械加工厂 | Sea tide power generation device |
| CN105545579B (en) * | 2016-01-30 | 2018-08-17 | 大连真源海洋新能源科技有限公司 | Sea tide generation equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| NO321534B1 (en) | 2006-05-22 |
| NO20013437L (en) | 2003-01-13 |
| NO20013437D0 (en) | 2001-07-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |