The Research Of Power Device Design Used On The Wave Buoy

The wave energy is not only one of the most abundant energyreserves but also the most research study of marine energyrecently. The technology of its development and utilization hasmatured, and it’s moving into the commercialization stage ofdevelopment. In this paper, the wave power generation technology,the basic principles of energy conversion systems were fullyreviewed, the generation technology progress and the main waveenergy device at home and abroad were introduced, and thesuccessful implementation of some programs were a strong impetusto the wave Technological advances that can transform itsworldwide competitiveness. With the actual situation in China,the wave energy research and utilization of development goalsand direction were analyzed, and it shows that the developmentof wave energy can take advantage of our coastal marine resourcesfor the development and the development of the island from themainland.This paper focuses on the design and study of a new type ofaxial flow impeller type wave power generation device, used forocean wave energy power generation. The structure comprises ahollow float, and the sleeve is connected with a float, with two groups of power structure assembly sleeve, one end of eachstructural component extends into the hollow float, is connectedwith the generator through the gear mechanism, the other end isconnected with the two-way impeller. Connected with the impeller,shaft, gear, generator sequence device, using the impeller willgravity wave energy is transformed into kinetic energy ofrotation of the impeller, through the rotation of the internalgear, gear converts the mechanical energy is transmitted to thegenerator gear, implementation of mechanical energy intoelectrical energy. The float is arranged between the sleeve andthe open cage, release the air pressure and water pressure excess.The device has the advantages of higher power generationefficiency, low cost, compact structure, advantages of shockresistance etc..In the design of axial flow impeller type wave powergeneration device, as the main absorption device--the Impeller,it has great influence on the wave energy absorption andtransformation rate, which is the important factor of wave energypower generation device power generation. According to themovement of the design of the wave power generation device powersupply equipment--ARGO buoy, namely the floating, floating anddiving, underwater static four state under the pressure, thefluid dynamics analysis software Fluent, according to the stressconditions of ARGO buoy four motion state under the impeller wave energy power generation device in the work of the stress range(400,640058)(unit: N). The Impeller in a buoy floating orsubmerged process by the entrance pressure was set to P1=5MPacaused by relative motion, the average entrance pressuregenerated in the random wave motion was P2=7.5MPa, and theultimate in wave energy under the maximum was the entrancepressure of P3=20.3MPa was simulated by the impeller, ratio oftransformation of wave energy power and entrance pressure.Through the actual test generator model and wave by wave energyabsorption, relationship between impeller blade performance ofwave energy power supply device. Through the simulationcalculation of Gambit modeling and Fluent software, get pressurenephogram and radial force, torque impeller. The selected3groups of simulation results reflect the internal flow field ofimpeller blades with buoy motion force and other parameters, andverifies the feasibility of the designed power supply device andblade type wave energy power supply device design strength ofimpeller blade root provides a reference for the buoy.Impeller stress and fatigue strength is in normal operation,is an important factor in determining the design device can run.Through the finite element analysis software ANSYS, wereselected in the normal work of2m,5m,10m in different wavevelocity, by simulation, to obtain the parameters of impellerby pressure, deformation and safety coefficient. Through the calculation, when the wave of wave height reaches10m, namelythe wave into the sleeve speed reaches14.14m/s, the maximumstress is653.7MPa, the safety coefficient of1.28. So the designof the vane wheel type wave power device capable of safely inthe coastal areas in China operation.The design of the ocean wave energy generation mechanism iscomposed of a gear system with multi-stage transmission, as aform of transmission of important mechanical transmission, geardrive has the characteristics of wide application forms. Waveenergy generation mechanism by water waves on the potentialenergy conversion generator power, speed is not high, so the gearselection of precision grade seven (GB10095-88), the choice ofmaterials, material selection, the small gear are respectively45steel (conditioning) and40Cr (conditioning), hardnessdifference corresponding to240HBS and280HBS, hardnessdifference,40HBS. Two aspects from the tooth surface contactstrength and bending strength calculation of gear modulus,modulus of m=1.5, finally ADAMS to calculate the gear shaft forcesize, easy to calculate the later further material and bearinglife.The21th Century is the century of oceans, to the sea forthe human resources has become an inevitable trend. Wave energyis a kind of important marine energy, wave power device is aneffective way to relieve the energy pressure. Wave power generation device to improve the efficiency and reliability,greatly reduce the construction cost of it, is the overall trendof the future development of wave energy. At present, there havebeen some can reduce wave energy generation cost, if we can makethe production and application of large-scale, wave powergeneration device can greatly reduce the cost of. High efficientutilization of wave energy resources, has great significance tothe marine development and the national coastal defenseconstruction.