CN204538937U - Multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) - Google Patents
Multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) Download PDFInfo
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The utility model is a kind of multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), and the composition of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises permanent-magnet stator, coil rack, protecting sheathing, the first coil, the second coil, tertiary coil, the 4th coil, buoy, guide cylinder, the first rigid connecting rod, bulb joint bearing, the second rigid connecting rod, counterweight case and electric energy processing module; Wherein, the first coil and the second coils connected in series form coil windings a, are connected after tertiary coil and the 4th coils connected in series form coil windings b, coil windings a and coil windings b parallel connection with electric energy processing module; The first described coil, the second coil, tertiary coil are identical with the 4th coil winding-direction, and the number of turn is identical.The utility model device utilizes the effective range of wave height for 0.1m ~ 1.4m, can the devices such as independently-powered checkout equipment, meteorological sensor be needed sea to power, avoid the limitation that the electric supply installation such as solar energy, wind energy is applied at sea.
Description
Technical field
The utility model belongs to energy development field, particularly a kind of multi-stage coaxial connection in series-parallel Blast Furnace Top Gas Recovery Turbine Unit (TRT) that is permanent magnetic material with neodymium iron boron N38, and structure is simple, and efficiency is high.
Background technology
Ocean wave generating needs the Conversion of Energy of seawater fluctuation to be electric energy, different according to the form of power conversion, and fluctuation electricity generating plan can be summarized as four classes at present: vapour-pressure type, fluid pressure type, mechanical type and direct-drive type.This four classes energy conversion device (WaveEnergy Converter, WEC) all needs through a medium with contact with sea water and interaction.
Vapour-pressure type WEC utilizes air as the medium of conversion, under the heave effect of wave, wave energy is converted to pressure energy and the kinetic energy of air, utilize air stream drives turbine to rotate and drive electrical generators generating, its shortcoming is: adopt three grades of power conversion, its energy conversion efficiency is lower; Generator noise is large, and installation site is limited, larger on land impact; The ocean wave energy density ratio of bank formula and offshore formula is lower.
Fluid pressure type WEC utilizes powered by wave energy hydraulic means to do work to hydraulic turbine unit, and then drive conventional motors generating, according to acquisition mode, typical fluid pressure type wave power generation can be divided into: pendulum-type and raft formula.Pendulum-type WEC is by the restriction of installation site, and be only applicable to bank or neritic area, applicability is limited; Raft formula device is made up of hinged raft body and hydraulic system, and its shortcoming is that the general volume of raft formula Wave energy converter is comparatively large under equal energy output, and the higher and hinge position of construction cost is easily damaged.
Mechanical type WEC is primarily of mechanical mechanism compositions such as clutch teeth roller boxs, the driving shaft adopting sealing is the mechanical energy of electric rotating machine by the power conversion that wave rises and falls by gear box, and then generation electric energy, shortcoming: the use of the mechanical structures such as gear box, add system capacity conversion times, reduce energy conversion efficiency and the reliability of system, maintenance cost is high.
Direct-drive type WEC generally adopts permanent magnet electric generating apparatus directly the mechanical energy of wave to be converted to electric energy, relative to other current wave energy generating sets, and the offshore minimal maintenance needed for direct-drive type WEC.
Existing permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) is of a great variety, and typical permanent magnet electric generating apparatus can be divided into following two classes: axial magnetizing permanent magnetism Blast Furnace Top Gas Recovery Turbine Unit (TRT), radial magnetizing Blast Furnace Top Gas Recovery Turbine Unit (TRT).The permanent magnet polarised direction of axial charging structure Blast Furnace Top Gas Recovery Turbine Unit (TRT) is parallel with the direction of vibration of permanent magnet opposed coil, and the permanent magnet polarised direction of radial magnetizing structure transmitting apparatus and the direction of vibration of permanent magnet opposed coil perpendicular.
Permanent magnet linear generator mostly is cylindrical shape as typical permanent magnet electric generating apparatus, i.e. cylindrical permanent-magnet linear electric generator (TPMLM).Structure of mover more common in TPMLM mainly contains three kinds, i.e. axial charging structure, radial magnetizing structure and Halbach structure: not only air gap flux density is large for the TPMLM of (1) axial charging mode, and first-harmonic magnetic is after grooving close also large, harmonic content is moderate.The impact of the mode that magnetizes on this kind from structural parameters, the impact by structural parameters is larger.(2) the TPMLM air gap flux density of radial magnetizing mode is less than normal, and affects comparatively large after fluting on this kind mode of magnetizing, and harmonic content is high.But less by structure parameters influence, the occasion simple and quick at some is more applicable.(3) Halbach mover motor not only can obtain larger air-gap field, can also obtain the air-gap field waveform of relatively sinusoid or rectangle, and fluting impact is little under this mode that magnetizes, and harmonic content is little.But the complex structure when designing, wants rationally accurately choosing of parameter.
Permanent magnet is the core of ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), the quality of its material and design structure directly affects the performance of Blast Furnace Top Gas Recovery Turbine Unit (TRT), permanent magnetic material performance paper examines index: remanent magnetism and maximum magnetic energy product, then produces in line with permanent magnet the principle that magnetic field intensity is the bigger the better in practical engineering application in air gap.The maximum magnetic energy product of material and remanent magnetism decide the maximum magnetic field intensity of working gas gap.Permanent magnetic material has the numerous kinds such as ferrite, rare earth SmCo, aluminium nickel cobalt, neodymium iron boron, and wherein ferrite coercive force is high, and remanent magnetism is lower, and temperature coefficient is large, should not use in the environment that the temperature difference is large.Aluminium nickel cobalt remanent magnetism is little compared with large coercive force, and casting processing is very complicated.Rare earth SmCo excellent performance and high cost.Current neodymium iron boron is the permanent magnetic material of magnetic property the best, and its mechanical strength is large.Nd-Fe-Bo permanent magnet material, be the third generation high performance permanent magnetic materials come out nineteen eighty-three, its main component is Nd2Fe14B, is the permanent magnetic material that current magnetic property is the strongest, and its maximum magnetic energy product can reach 398kJ/m
3remanent magnetism reaches as high as 1.47T, coercive force is the highest more than 1000kA/m, due to its component aboundresources, cheap, can see well known materials (Liu Yapi, when golden, Bao great Xin, Ren Xuyu. the development trend of permanent magnetic material. magnetic material and device .2003,34 (2): 33-36.)
The magnetic parameter of table 1 neodymium iron boron N38
Be applied in the device of ocean wave generating aspect at present mainly based on permanent magnet linear generator, major part all introduces energy conversion device, and magnetic circuit utilance is low, complex structure, effectively can not utilize wave height, and energy transformation ratio reduces.The utility model people is at patent " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the radial magnetizing " (application number: solved conventional wave wave electric generating apparatus Conversion of Energy mechanism structure 2014108335677) complicated of previously application, the problem that energy conversion efficiency is low, but still there is following shortcoming: one, the mover coil winding of the permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing adopts one group of coil (two coils), although the wave power generation of different wave height can be adapted to, but wave high more than 0.6m scope after (China except Sea And Bohai Sea Coast significant wave height be about 0.6m, other marine site significant wave heights are all at more than 1m), coil no longer cutting magnetic line produces electromotive force, this part wave energy can not be made full use of.Its two, loop construction and bind mode are not fully optimized, and coil overall impedance does not reach with the impedance of electric energy processing module mates, and the electromotive force causing whole device to export can not reach maximum.
Utility model content
The purpose of this utility model is the deficiency for current techniques, a kind of multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) is provided, this device using neodymium iron boron N38 for material is as permanent-magnet stator, by two groups of coils (four coils, often organize two coils) as mover, and be optimized by the wire diameter to coil, the number of turn and coil-span, make the total resistance value of two groups of coil windings (four coils) and the equivalent resistance sum approximately equal of electric energy processing module and accumulator internal resistance, reach impedance matching effect, thus power output can be made to reach maximum.It is simple that the utility model achieves structure, it is few that intermediate energy transforms link, and generating efficiency is high, is applicable to distributed, miniaturized ocean wave power field, be specially adapted to need in independently-powered detection, monitoring instrument, with the inconvenience replacing solar energy and wind power generation to apply in ocean.
Technical solutions of the utility model are:
A kind of multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), the composition of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises permanent-magnet stator, coil rack, protecting sheathing, the first coil, the second coil, tertiary coil, the 4th coil, buoy, guide cylinder, the first rigid connecting rod, bulb joint bearing, the second rigid connecting rod, counterweight case and electric energy processing module;
Its annexation is: the upper end of the first rigid connecting rod is fixed in permanent-magnet stator lower surface, first rigid connecting rod is through guide cylinder, lower end is connected with bulb joint bearing, second rigid connecting rod upper end is connected with the first rigid connecting rod lower end by bulb joint bearing, and the second rigid connecting rod lower end is fixed with counterweight case; Guide cylinder is fixed on buoy center, and the outside of permanent-magnet stator is coil rack, and the first coil, the second coil, tertiary coil, the 4th coil are equidistantly fixed on coil rack from top to bottom successively; Coil rack arranged outside has airtight protecting sheathing, coil rack and protecting sheathing fixed buoy upper surface; Electric energy processing module is fixed on the inwall of protecting sheathing;
Wherein, the first coil and the second coils connected in series form coil windings a, are connected after tertiary coil and the 4th coils connected in series form coil windings b, coil windings a and coil windings b parallel connection with electric energy processing module; The first described coil, the second coil, tertiary coil are identical with the 4th coil winding-direction, and the number of turn is identical.
The quality sum of described permanent-magnet stator, the first rigid connecting rod, bulb joint bearing, the second rigid connecting rod and balance ballast box is equal with the buoyancy that counterweight case provides;
Electric energy processing module is provided with tunable capacitor;
The composition of described permanent-magnet stator comprises permanent magnet and magnetic material box, and permanent magnet is put into magnetic material box and sealed; The fan-shaped magnetic shoe of radial magnetizing that described permanent magnet is 36 ° by the radian of 10 pieces of formed objects splices and forms, column structure ringwise, and form internal-and external diameter radial pattern permanent magnet, material is neodymium iron boron N38;
When device is static, the upper edge of permanent magnet flushes with the lower edge of the second coil, and the lower edge of permanent magnet flushes with the upper edge of tertiary coil.
Described each coil wire diameter is 0.49mm, and the number of turn is 300 circles.
Adjacent windings spacing is identical with the thickness of permanent magnet;
The spacing of coil rack and stator is 3mm.
The beneficial effects of the utility model are:
Distinguishing feature of the present utility model is with the magnetic shoe of radial magnetizing splicing composition circular cylinder, form internal-and external diameter radial pattern permanent magnet, according to finite element analysis software simulation result, under same model difference magnetizes mode, the internal-and external diameter radiation mode of magnetizing is the increase being conducive to electromotive force most.Compared with the patent of applying for " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing ", coil windings increases to two groups by one group, and carries out the optimal design of connection in series-parallel connected mode, can improve Energy transmission efficiency, increase utilance that is high to wave wave and magnetic field, improve output voltage.Coil is fixed on buoy; pump as mover cutting magnetic line generation electromotive force with buoy; make full use of the magnetic circuit of coil and permanent magnet; avoid coil and permanent magnet utilizes insufficient problem; the device such as permanent magnet, coil is fixed on buoy and can reduces the requirement of protecting sheathing to pressure simultaneously; reduce the corrosion of seawater, improve the useful life of device, be also convenient to electrical wiring.
There are substantial connection in wave height, the cycle of the output voltage of ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), generating efficiency and ocean wave, and wave height is higher, the cycle is shorter, and output voltage and the efficiency of ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) are higher.The significant wave height distribution of China coastal seas is: Sea And Bohai Sea Coast is 0.3 ~ 0.6m, the Shandong Peninsula, northern Suzhou, entrance of Changjiang River, Along The Western Coast of The Taiwan Strait, west of Guangdong Province Yuexi, Hainan Island and North Sea bank are 0.6 ~ 1.0m, Bohai Haixia, Zhejiang, the north, Fujian, east of Taiwan and East Guangdong bank are 1.0 ~ 1.7m, and area, Xisha is about 1.4m.Period profile situation is generally speaking similar with Wave Height Distribution, annual period profile specific to various places bank is: the Bohai Sea is 2.0 ~ 3.0s, Bohai Haixia is 3.6s, left and right, South Coasts of Shandong Peninsula, northern Suzhou and entrance of Changjiang River are 3.0 ~ 4.4s, Zhejiang, Fujian and Taiwan are 4.5 ~ 6.4s, west of Guangdong Province Yuexi, East Guangdong is 3.0 ~ 5.4s, Hainan Island and the North Sea are 2.5 ~ 3.0s, area, Xisha is about 3.5s, can see well known materials (king passes Kon, Lu Wei. marine energy resources analytical method and Reserves Assessment [M]. Beijing: Maritime Press, 2009:106-129.).
Fluctuate compared with Blast Furnace Top Gas Recovery Turbine Unit (TRT) with the permanent magnetism that one group of coil is housed in the patent of applying for " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing ", the utility model device utilizes the effective range of wave height for 0.1m ~ 1.4m, with only have utilize wave height during one group of coil effective range 0.1m ~ 0.6m compared with, be doubled, in output electromotive force, efficiency, have also been obtained larger raising.Above data are that experiment amplitude obtains far below during the bank significant wave height of the Bohai Sea, if vibration amplitude continues to increase, output voltage average value can be higher, the requirement to charge in batteries can be met completely, can the devices such as independently-powered checkout equipment, meteorological sensor be needed sea to power, avoid the limitation that the electric supply installation such as solar energy, wind energy is applied at sea.
Therefore, the utility model is applicable to as sea needs independently-powered checkout equipment, monitoring instrument, sensor to power, structural parameters are all through optimization, middle conversion link is few, structure is simple, be convenient to safeguard, generating efficiency is high, overcomes solar energy and wind energy applies limited shortcoming at sea.
Accompanying drawing explanation
Fig. 1: the overall structure figure of multi-stage coaxial connection in series-parallel Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model.
Fig. 2: the structure chart of permanent-magnet stator of the present utility model.
Fig. 3: the magnetic material cartridge structure chart of multi-stage coaxial connection in series-parallel Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model, Fig. 3 (a) is the vertical view of magnetic material box, and Fig. 3 (b) is the front view of magnetic material box;
Wherein, 1-permanent-magnet stator, 2-coil rack; 3-protecting sheathing, 4-first coil, 5-second coil; 6-tertiary coil, 7-the 4th coil, 8-buoy; 9-guide cylinder; 10-first rigid connecting rod, 11-bulb joint bearing, 12-second rigid connecting rod; 13-counterweight case, 14-electric energy processing module.
Fig. 4: magnet structure schematic diagram of the present utility model.
Fig. 5: experimental data oscillogram, wherein, Fig. 5 (a) is oscillogram during cycle T=2s; Fig. 5 (b) is oscillogram during cycle T=3.5s; Fig. 5 (c) is oscillogram during cycle T=4s.
Embodiment
Below in conjunction with accompanying drawing and example, the technical solution of the utility model is further illustrated, but not as the restriction to protection range.
Fig. 1 is the overall schematic of multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model, and the composition of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises permanent-magnet stator 1, coil rack 2, protecting sheathing 3, first coil 4, second coil 5, tertiary coil 6, the 4th coil 7, buoy 8, guide cylinder 9, first rigid connecting rod 10, bulb joint bearing 11, second rigid connecting rod 12, counterweight case 13 and electric energy processing module 14;
Its annexation is:
The upper end of the first rigid connecting rod 10 is fixed in permanent-magnet stator 1 lower surface, first rigid connecting rod 10 is through guide cylinder 9, lower end is connected with bulb joint bearing 11, second rigid connecting rod 12 upper end is connected with the first rigid connecting rod 10 lower end by bulb joint bearing 11, and the second rigid connecting rod 12 lower end is fixed with counterweight case 13; Guide cylinder 9 is fixed on buoy 8 center, and the outside of permanent-magnet stator 1 is coil rack 2, and the first coil 4, second coil 5, tertiary coil 6, the 4th coil 7 are equidistantly fixed on coil rack 2 from top to bottom successively; Coil rack 2 arranged outside has airtight protecting sheathing 3, coil rack 2 and protecting sheathing 3 fixed buoy 8 upper surface; Electric energy processing module 14 is fixed on the inwall of protecting sheathing 3;
Wherein, the first coil 4 and the second coil 5 coil windings a in series, tertiary coil 6 and the 4th coil 7 coil windings b in series, coil windings a is connected with electric energy processing module 14 with after coil windings b parallel connection.
Coil rack 2 is fixed on enclosure; protecting sheathing 3 is fixed on buoy 8 upper surface; on bubbling through the water column; buoy 8 is with moving winding to fluctuate up and down with wave; make coil windings a, coil windings b and permanent-magnet stator 1 produce relative motion; coil cutting magnetic line, produce induced electromotive force, to the charge in batteries outside device after built-in electric energy processing module is by the AC rectification filtering of generation.
The quality sum of described permanent-magnet stator 1, first rigid connecting rod 10, bulb joint bearing 11, second rigid connecting rod 12 and balance ballast box 13 is equal with the buoyancy that counterweight case 13 provides.
Specific as follows:
Consider that coil block quality is more much smaller than the quality of permanent-magnet stator 1, therefore the utility model adopts coil block as mover, subpart mainly comprises the first coil 4, second coil 5, tertiary coil 6, the 4th coil 7 and coil rack 2.Mover is fixed on buoy 8.Buoy top is cylinder, and bottom is cone, and cone angle is 120 °, is conducive to collecting wave energy.The upper end of the first rigid connecting rod 10 is fixed in permanent-magnet stator 1 lower surface, and the first rigid connecting rod 10 is through guide cylinder 9, and lower end is connected with bulb joint bearing 11.Second rigid connecting rod 12 upper end is connected with the first rigid connecting rod 10 lower end by bulb joint bearing 11, and the second rigid connecting rod 12 lower end is fixed with counterweight case 13.Through theory calculate, permanent-magnet stator 1, first rigid connecting rod 10 designed, bulb joint bearing 11, second rigid connecting rod 12 are equal with the buoyancy that it is totally subject to the gravity balancing ballast box 13 overall, its entirety is made to be in poised state in the seawater, as the stationary part of whole device.
Bulb joint bearing 11, is made up of bulb and ball seat, has wear resistant brass lining inside ball seat, and bulb can do 360 ° of horizontal directions and rotate in ball seat, and the maximum anglec of rotation of vertical direction can reach 60 °.
Because coil wire diameter, the number of turn affect coil total impedance, the utility model is in order to reach the requirement of impedance matching, real part equal (resistance value is equal) when making impedance matching, by arduous research and experimental verification, to coil turn and wire diameter optimization, coil wire diameter is 0.49mm, and the number of turn is 300 circles.Electric energy processing module is provided with tunable capacitor, its capacitor value can change, with coil windings reactance value, device total impedance real part is equal, and imaginary part is contrary, thus reaches conjugate impedance match effect, can according to application of installation to different waters time, wave period, frequency are different, for reaching impedance matching, and capacitance when variable capacitance is adjusted to the most concentrated frequency values in this marine site needed for impedance matching.
The utility model and then by carrying out static state, dynamic simulation, draw optimum results: the lower edges place Distribution of Magnetic Field density of radial magnetizing magnetic shoe permanent magnet is maximum, so adjacent windings spacing i.e. 50mm equal to the thickness of permanent magnet, two coils in the middle of time static are in permanent magnet lower edges place; Coil Oscillation Amplitude is relevant to the fluctuating range of wave, and going up most on coil under along vibration to the most lower coil of Distance geometry during topmost along vibrating to distance sum during foot is the maximum vibration range value of the utility model device.
In addition, for making the abundant cutting magnetic line of coil, and do not affect coil movement, the spacing of coil rack and stator is 3mm.
The whole device course of work: in ocean, the buoyancy be subject to due to buoy 8 is larger, seawater has less fluctuation; buoy 8 will drive coil windings a and coil windings b to move up and down; permanent-magnet stator 1, first rigid connecting rod 10, bulb joint bearing 11, second rigid connecting rod 12 and balance ballast box 13 are in poised state; the impact being subject to wave is relatively little; for relatively fixing buoy; thus coil windings a, coil windings b and permanent-magnet stator 1 produces larger relative motion, cutting magnetic line generation induced electromotive force.Due to the effect of bulb joint bearing 11; when buoy swings in different angles; can ensure that permanent-magnet stator 1 and coil windings a, coil windings b do straight reciprocating motion; take full advantage of wave mechanical energy; also improve the utilance of coil and permanent magnet, thus improve the generating efficiency of whole device.(two groups of coil windings are moved with buoy; buoy movement scope is exactly the range of movement of coil; the domain of walker of buoy and wave height are similar to the relation be proportionate; the domain of walker of buoy is 0.15m ~ 1m, can see well known materials (history HTC, Cao Feifei; Ma Zhe; Liu Zhen. oscillating float type wave-power device physical model test [J]. marine technology journal, 2014,04:98-104.))
Fig. 2 is permanent-magnet stator structure chart of the present utility model: 15-permanent magnet, 16-magnetic material box.Particular location relation is as follows:
The composition of described permanent-magnet stator 1 comprises permanent magnet 15 and magnetic material box 16, wherein, permanent magnet 15 puts into the sealing of magnetic material box 16, the lower end of magnetic material box 16 is connected (not drawing rigid connecting rod in Fig. 2) with the first rigid connecting rod 10, the pole pair permanent-magnet stator that is rigidly connected plays a supportive role, make permanent-magnet stator be positioned at coil rack bosom position, permanent-magnet stator central axis is consistent with the central axis of coil rack 2.Coil rack 2 is cylindrical, has appropriate gap between permanent-magnet stator 1 and coil rack 2, does not affect the relative motion of permanent-magnet stator and coil windings;
The fan-shaped magnetic shoe of radial magnetizing that described permanent magnet 15 is 36 ° by the radian of 10 pieces of formed objects splices and forms, and column structure ringwise forms internal-and external diameter radial pattern permanent magnet.Material is neodymium iron boron N38;
Coil rack 2 insulating material polytetrafluoroethylene is made, and is fixed on protecting sheathing (not marking in Fig. 2) inner, is fixed on buoy by protecting sheathing.
Above-mentioned each parameters of operating part:
Bulb joint bearing 11: model: SQZ 20-RS, material: zinc-containing alloy ball seat material is 45# steel, wear resistant brass back boxing, bulb is carbon steel or carburizing steel, plating zinc on surface or chromium;
Permanent magnet 15: fan-shaped permanent magnetic tile
Outer radius: 100mm inside radius: 40mm thickness: 50mm quantity: 10 pieces
Material: neodymium iron boron (Nd2Fe14B) N38;
Magnetic material box 16: outer radius: 105mm inside radius: 37mm height: 70mm
Material: stainless steel 1Cr18Ni9Ti;
Dividing plate 18: material: stainless steel 1Cr18Ni9Ti;
Coil rack 2: interior diameter: 225mm wall thickness: 3mm height: 800mm (
Material: polytetrafluoroethylene;
Coil windings a, b: wire diameter: 0.49mm coil interior diameter: 225mm coil overall diameter: 228mm
Coil height: the 50mm number of turn: 300 circles.
Distance between each coil is: 50mm, material: enamel covered wire.
Fig. 3 is the magnetic holder structural representation of the utility model permanent magnet: 17-magnetic holder outer cylinder, 18-dividing plate, 19-magnetic holder inner cylinder, bottom on 20-magnetic holder, 21-magnetic holder lower bottom cover.
Application Example:
The electric energy processing module 14 of radial permanent magnet formula ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), comprising rectification, filtering, voltage stabilizing, switch control rule, supplementing the circuit part such as loop is routine techniques, such as can see document (Jia Hongjie. the electrical conversion systems design studies [D] of small-sized wave energy generating set. Harbin: Harbin Engineering University .2013.).
Experimentation: experiment test is carried out to experimental provision in laboratory, respectively contrast experiment is carried out to two groups of devices, and carry out data analysis, the magneto ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) (the permanent magnetism fluctuation Blast Furnace Top Gas Recovery Turbine Unit (TRT) that two coils are housed in the patent " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing " of having applied for) of first group of to be mover be 2 coils connected in series, is designated as device A; Second group is the series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of multi-stage coaxial of the present utility model, be designated as device B and all adopt Research on Shaking Table for Simulating ocean wave vibration source, regulate vibration amplitude, frequency analog ocean wave parameter, utilize oscilloscope to gather induced electromotive force, frequency information.
Laboratory apparatus:
Vibration machine, digital multimeter universal instrument KJ9208,4 Channel Color digital oscilloscope Tektronix DPO3014.
Experiment parameter sets: each parameter of the coil of two groups of devices, coil rack is identical, wire diameter: 0.49mm, coil turn: 300 circles; Coil vibration amplitude: 200mm, the vibration period is set as respectively: T=0.72s, T=1s, T=1.8s, T=2s, T=3.5s, T=4s.
Under the parameter of setting, test the induced electromotive force data result of the two groups of experimental provisions recorded as table 4:
Table 4 experimental data
| Vibration period (S) | 0.72 | 1.0 | 1.8 | 2.0 | 3.5 | 4 |
| Device A electromotive force maximum (V) | 21.18 | 17.21 | 12.61 | 8.27 | 4.38 | 4.02 |
| Device B electromotive force maximum (V) | 35.61 | 30.96 | 25.43 | 20.67 | 11.36 | 9.18 |
Through experiment test, experimentally data result analysis can go out: at coil parameter, vibration period, when each parameter such as Oscillation Amplitude is identical, after device A (mover is the magneto ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of 2 coils connected in series) vibration amplitude exceedes certain limit, coil no longer cutting magnetic line produce electromotive force, and device B (multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model) adopts multi-coil structure, still effectively can produce electromotive force by cutting magnetic line, be within the scope of 0.7s ~ 4s in the vibration period, the induced electromotive force maximum of device B (multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model) is about about 2 times of the induced electromotive force maximum of device A (mover is the magneto ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of 2 coils connected in series).When experiment is carried out, the vibration period parameter of setting sets by the actual average cycle of waves of seawater, vibration amplitude is much smaller than actual wave significant wave height, but the producible electromotive force of the utility model device is enough large, impedance matching effect is reached after being connected with electric energy processing module, power output can be made to reach maximum, be enough to storage battery charge, thus independently-powered sensing device is needed to sea, checkout equipment powers.Experimental comparison's sufficient proof practicality of this device, feasibility and high efficiency.
With the significant wave height of China's Bohai Sea bank and period profile for reference, experimental verification has been carried out to the utility model device, and the permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the radial magnetizing of one group of coil windings of only having in patent " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing " contrasts: (1) coil 300 circle, hub of a spool spacing 50mm, vibration period is 0.72s, Oscillation Amplitude is 200mm, after electric energy processing module, the utility model device Absorbable organic halogens exports 22.662V direct voltage, 1.68 times of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) output dc voltage (13.479V) of the radial magnetizing of one group of coil.(2) coil 300 circle, hub of a spool spacing 50mm, vibration period is 2s, Oscillation Amplitude is 200mm, after electric energy processing module, the utility model device Absorbable organic halogens exports 13.154V direct voltage, is 1.67 times of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) output dc voltage (7.857V) of the radial magnetizing of one group of coil.(3) coil 300 circle, hub of a spool spacing 50mm, vibration period is 3s, Oscillation Amplitude is 200mm, after electric energy processing module, the utility model device Absorbable organic halogens exports 11.861V direct voltage, 1.61 times of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) output dc voltage (7.351V) of the radial magnetizing of one group of coil.(4) coil 300 circle, hub of a spool spacing 50mm, vibration period is 4s, Oscillation Amplitude is 200mm, after electric energy processing module, the utility model device Absorbable organic halogens exports 5.94V direct voltage, 1.61 times of two groups of coil windings due to the utility model device of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) output dc voltage (2.558V) of the radial magnetizing of one group of coil adopt first in parallel, the connected mode of connecting again, whole device entirety in electrical resistance has reached impedance matching effect, make power output maximum, about 2 times that only have the permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the radial magnetizing of one group of coil in patent " a kind of permanent magnetism ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) of radial magnetizing " in efficiency.
(1) coil winding arrangement and connected mode: novel fluctuation Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present utility model be in the structure of coil windings with the maximum difference of fluctuation Blast Furnace Top Gas Recovery Turbine Unit (TRT) before, have employed two groups of coil windings a, b (four coils), overcome when only having one group of coil in the past, due to wave height exceed certain limit after coil can not cutting magnetic line and cause the low drawback of the utilance of magnetic field of permanent magnet ((going up most on coil under along vibration to the most lower coil of Distance geometry during topmost along vibrating to distance sum during foot is the maximum vibration range value of the utility model device for 0.1m ~ 1.4m to utilize the effective range of wave height completely, go up most under edge on coil and most lower coil along between distance be 0.738m, to go up most on coil the distance that edge under along vibration to topmost and most lower coil vibrates to foot and be respectively 0.738m, so peak swing is 0.738+0.738=1.476m.), with only have utilize wave height during one group of coil effective range 0.1m ~ 0.6m compared with, be doubled), within the scope of the significant wave height in most of marine site, four coils of this device effectively can produce electromotive force by cutting magnetic line, thus effectively improve magnetic circuit and coil utilization rate.Consider and often organize the phase relation that coil cutting magnetic line produces electromotive force, (four coils have three kinds to two groups of coils in connected mode: two coils 1) in each group of coil windings a, coil windings b are first connected, then 2 are connected again for two groups) two coils in each group of coil windings a, coil windings b first connect, then two groups more in parallel (first in parallel with two coils in each group of coil windings a, coil windings b, then two groups cascading effect is identical again).3) two coils in each group of coil windings a, coil windings b are first in parallel, then two groups in parallel again.Above three kinds of connected modes need to consider the phase relation connecting rear resistance sizes cutting magnetic line generation electromotive force size and produce electromotive force, and (resistance too conference causes energy loss amount large, the inconsistent meeting of phase place makes electromotive force mutually weaken, reduce induced electromotive force), optimize a kind of connected mode, instead of only simply increase coil number.Three kinds of connected modes are to such as table 2:
Table 2 three kinds of connected mode contrasts
| Two groups of coil connected modes | Resistance sizes | Produce electromotive force | Phase relation |
| Connected mode 1 | Greatly | Little | Unanimously |
| Connected mode 2 | In | Greatly | Unanimously |
| Connected mode 3 | Little | Little | Inconsistent |
Consider an aspect factor by table 2, preferred connected mode 2, namely two groups of coils are first in parallel, then connect.
(2) impedance matching: the utility model device achieves conjugate impedance match.Z during conjugate impedance match
l=R
l+ jX, Z
s=r+jX
r, Z
l=Z
s *, the resistance value namely in load impedance is equal with the internal resistance of source, and reactance value is equal with source reactance value, and phase place is contrary.
The utility model device, coil impedance is perception, the equiva lent impedance of electric energy processing module and the equivalent internal resistance of storage battery are capacitive load, electric energy processing module can regulate capacitive reactance size by variable capacitance, make the reactance value of the coil windings of device and the capacitor value equal and opposite in direction of the equiva lent impedance of electric energy processing module and the equivalent internal resistance of storage battery, the imaginary part realized in conjugate impedance match is equal.
First coil, second coil, tertiary coil, 4th coil parameter is identical, each coil is 300 circles, resistance is that 18.3 Ω are (due to the wire diameter of coil, the number of turn and the performance of coil-span to device have considerable influence, wire diameter, the number of turn has considerable influence to coil resistance, number of turn difference can affect spacing and the position of coil, and be subject to the spatial limitation of coil rack, coil turn is unsuitable too many again, pass through optimized design, equal for reaching conjugate impedance match real part resistance value, the utility model device adopts wire diameter to be the enamel covered wire of 0.49mm, the number of turn is 300 circles, coil-span is 20mm.), the resistance value that three kinds of connected modes of coil windings are corresponding is as shown in table 3:
Table 3 three kinds of connected mode resistance values
The coil windings of the utility model device adopts connected mode 2 (two coils in each group of coil windings a, coil windings b are first connected, then two groups of parallel connections again), and its resistance value is 18.3 Ω.The equiva lent impedance of electric energy processing module and the equivalent internal resistance sum of storage battery are about 18.1 Ω, and (electric energy processing module equiva lent impedance is about 18.1 Ω, the equivalent internal resistance of storage battery is between 4m Ω ~ 25m Ω, can ignore and not remember, therefore its total equiva lent impedance is about 18.1 Ω) adopt connected mode 2 to be connected rear total resistance value 18.3 Ω approximately equal with coil windings, according to circuitry principle, the utility model device circuit entirety reaches conjugate impedance match, the power that device can be made to export during conjugate impedance match is maximum, thus substantially increase the efficiency of whole device further.
The utility model unaccomplished matter is known technology.
Claims (4)
1. a multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT), the composition that it is characterized by this Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises permanent-magnet stator, coil rack, protecting sheathing, the first coil, the second coil, tertiary coil, the 4th coil, buoy, guide cylinder, the first rigid connecting rod, bulb joint bearing, the second rigid connecting rod, counterweight case and electric energy processing module;
Its annexation is: the upper end of the first rigid connecting rod is fixed in permanent-magnet stator lower surface, first rigid connecting rod is through guide cylinder, lower end is connected with bulb joint bearing, second rigid connecting rod upper end is connected with the first rigid connecting rod lower end by bulb joint bearing, and the second rigid connecting rod lower end is fixed with counterweight case; Guide cylinder is fixed on buoy center, and the outside of permanent-magnet stator is coil rack, and the first coil, the second coil, tertiary coil, the 4th coil are equidistantly fixed on coil rack from top to bottom successively; Coil rack arranged outside has airtight protecting sheathing, coil rack and protecting sheathing fixed buoy upper surface; Electric energy processing module is fixed on the inwall of protecting sheathing;
Wherein, the first coil and the second coils connected in series form coil windings a, are connected after tertiary coil and the 4th coils connected in series form coil windings b, coil windings a and coil windings b parallel connection with electric energy processing module; The first described coil, the second coil, tertiary coil are identical with the 4th coil winding-direction, and the number of turn is identical;
The quality sum of described permanent-magnet stator, the first rigid connecting rod, bulb joint bearing, the second rigid connecting rod and balance ballast box is equal with the buoyancy that counterweight case provides;
Electric energy processing module is provided with tunable capacitor;
The composition of described permanent-magnet stator comprises permanent magnet and magnetic material box, and permanent magnet is put into magnetic material box and sealed; The fan-shaped magnetic shoe of radial magnetizing that described permanent magnet is 36 ° by the radian of 10 pieces of formed objects splices and forms, column structure ringwise, and form internal-and external diameter radial pattern permanent magnet, material is neodymium iron boron N38;
When device is static, the upper edge of permanent magnet flushes with the lower edge of the second coil, and the lower edge of permanent magnet flushes with the upper edge of tertiary coil.
2. multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 1, it is characterized by described each coil wire diameter is 0.49mm, and the number of turn is 300 circles.
3. multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 1, is characterized by adjacent windings spacing identical with the thickness of permanent magnet.
4. multi-stage coaxial connection in series-parallel ocean wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 1, the spacing that it is characterized by coil rack and stator is 3mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046220A (en) * | 2021-11-23 | 2022-02-15 | 北京纳米能源与系统研究所 | Power generation system and power generation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114046220A (en) * | 2021-11-23 | 2022-02-15 | 北京纳米能源与系统研究所 | Power generation system and power generation method |
| CN114046220B (en) * | 2021-11-23 | 2024-02-02 | 北京纳米能源与系统研究所 | Power generation system and power generation method |
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