A kind of hydraulic underwater windmill generator
Technical field
The utility model relates to hydro-electric power generating equipment, especially a kind of hydraulic underwater windmill generator.
Background technique
" underwater windmill " (underwater windmill) is that the novel sea that begins to enter research field at the beginning of 21 century can develop device.It utilizes the wind energy conversion system electricity generating principle, adopts shellfish energy capture theory now, catches the kinetic energy of current and is converted into electric energy by impeller.Because the energy of flow of the ocean current of its utilization is so it is a kind of reproducible alternative energy.Present Britain, the underwater windmill of U.S.'s design all be a single impeller mechanism, impeller rotates under flow action, drives generator by the mechanical transmission speedup box, exports electric energy, and its impeller, speedup box, generator etc. all place in the subsea nacelle.At first, such structure is owing to adopted mechanical transmission, so bigger to the system mechanics structural impact, increasing of parts also increased the rate of fault of installing under water on the other hand, and the underwater maintenance operation is the comparison difficulty.Secondly, for large-scale unit, its heat radiation also is a problem.
Summary of the invention
The purpose of this utility model provides a kind of hydraulic underwater windmill generator, utilizes hydraulic transmission mode that generator and control system are positioned on the sea, reduces the rate of fault of unit.
The technological scheme that its technical problem that solves the utility model adopts is: the utility model comprises that blade, wheel hub, speedup box, oil hydraulic pump, valve control mechanism, oil hydraulic motor, generator, rectification electric power storage are encouraged and becomes controller, generation platform and pylon; Two blades or three blades are fixed on by flange forms two groups of impellers on the wheel hub, two groups of impeller symmetries are installed in the both sides of pylon and are connected with separately speedup box main shaft respectively, the output shaft of two groups of speedup boxes connects oil hydraulic pump separately respectively, two oil hydraulic pumps are by shared hydraulic tubing, be connected with oil hydraulic motor through the valve control mechanism, hydraulic motor output shaft connects generator, and generator output electricity is encouraged the change controller by the rectification electric power storage and provided stable 220V power frequency to the external world.
Described valve control mechanism comprises that relief valve, throttle valve and accumulator are formed by connecting with hydraulic tubing, relief valve one termination fuel tank, a termination oil hydraulic motor of throttle valve and accumulator.
Impeller, speedup box and oil hydraulic pump are fixed on the pylon and all put into seawater, and valve control mechanism, oil hydraulic motor, generator, rectification electric power storage are encouraged and become controller and all be positioned on the above generation platform in sea.
Oil hydraulic pump is placed in the speedup box housing, for being placed in the seawater after the pump box one.
The utility model is compared with background technique, and the useful effect that has is:
1. electric, the control section of underwater windmill and Hydraulic Power Transmission System are all across the sea, the impeller, speedup box and the oil hydraulic pump zoarium that have only mechanical structure are under the sea, therefore the rate of fault of parts is lower than the described scheme of background under water, and piece volumes under water is little, lifts easy to maintenance;
2. the pump box zoarium separates with pump box and compares, and does not only have huge cabin, outside, the obstruction of current is reduced greatly, and shell is dipped in the seawater, for the cooling of speedup box internal lubrication oil very big benefit is arranged, and need not to design complicated cooling system;
3. the hydraulic underwater windmill kind of drive is compared with the mechanical drive mode in the background, has protecting against shock, the characteristics that energy transfer is stable.
Description of drawings
Fig. 1 is a hydraulic underwater windmill profile schematic representation of the present utility model;
Fig. 2 is the systematic schematic diagram of hydraulic underwater windmill;
Fig. 3 is a blade part schematic representation;
Fig. 4 is speedup box and oil hydraulic pump mould assembling schematic representation.
Among the figure: 1, blade, 2, wheel hub, 3, speedup box, 4, oil hydraulic pump, 5, relief valve, 6, throttle valve, 7, accumulator, 8, oil hydraulic motor, 9, hydraulic tubing, 10, generator, 11, the rectification electric power storage encourages the change controller, 12, generation platform, 13, pylon.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the utility model comprises that blade 1, wheel hub 2, speedup box 3, oil hydraulic pump 4, valve control mechanism, oil hydraulic motor 8, generator 10, rectification electric power storage are encouraged and becomes controller 11, generation platform 12 and pylon 13; Two blades 1 or three blades 1 are fixed on by flange forms two groups of impellers on the wheel hub 2, two groups of impeller symmetries are installed in the both sides of pylon 13 and are connected with separately speedup box 3 main shafts respectively, the output shaft of two groups of speedup boxes 3 connects oil hydraulic pump 4 separately respectively, two oil hydraulic pumps 4 are by shared hydraulic tubing 9, be connected with oil hydraulic motor 8 through the valve control mechanism, the output shaft of oil hydraulic motor 8 connects generator 10, and generator 10 output electricity are encouraged change controller 11 by the rectification electric power storage provides stable 220V power frequency to the external world.
Described valve control mechanism comprises that relief valve 5, throttle valve 6 and accumulator 7 are formed by connecting relief valve 5 one termination fuel tanks, a termination oil hydraulic motor 8 of throttle valve 6 and accumulator 7 with hydraulic tubing.
Impeller, speedup box 3 and oil hydraulic pump 4 are fixed on the pylon 13 and all put into seawater, and valve control mechanism, oil hydraulic motor 8, generator 10, rectification electric power storage are encouraged and become controller 11 and all be positioned on the above generation platform 12 in sea.
Oil hydraulic pump 4 is placed in speedup box 3 housings, for being placed in the seawater after the pump box one.
Unit is caught energy by ocean current by impeller, the design principle of blade 1 is identical with wind energy conversion system, all be that the mechanical energy of utilizing lift to produce rotation makes generator for electricity generation, so be named as underwater windmill, but because the density of seawater is more than 800 times of wind, and the reasonable place of flow conditions also has only about 2m/s, the rated wind speed of wind energy conversion system is generally 12m/s, therefore at the ocean current characteristic, designed blade 1 structure as shown in Figure 3, the aerofoil profile of blade 1 is according to density of sea water and flow velocity design, and its chord length is than long with the pneumatic equipment blades made of diameter, root is the stainless steel cylindrical body, increases the intensity of blade.
Three blades are fixed on and are combined into impeller on the wheel hub, are connected with the speedup box main shaft by flange behind the impeller.Oil hydraulic pump 4 is placed in speedup box 3 housings, be designed to pump box unification structure, oil hydraulic pump turnover oil pipe passes from casing, finish fixing and sealing with the casing contact segment with welding manner, as shown in Figure 4, direct and the contact with sea water of the shell of pump box zoarium is cooled off gear box lubricating oil by seawater.Oil hydraulic pump is connected through between valve control mechanism and the oil hydraulic motor by pipeline, and hydraulic motor output shaft connects generator.Under action of ocean current, two impellers rotate simultaneously, and drive separately by speedup box separately that the oil hydraulic pump rotation produces the hydraulic pressure energy, can adopt hydraulic oil, pure water or seawater as driving medium, promote the oil hydraulic motor rotation by the valve control mechanism again, relief valve 5, throttle valve 6, accumulator 7 mainly play effects such as speed regulation, pressure stability in the valve control mechanism, oil hydraulic motor 8 drives generator 10 again and rotates, and generator 10 output electricity are encouraged change controller 11 (can purchase) by the rectification electric power storage provides stable 220V power frequency to the external world.The mechanism under water that installs two units is fixed on the pylon 13, builds generation platform 12 on pylon 13 tops, and the oil hydraulic motor 8 of two underwater windmills is installed respectively on the platform, and oil hydraulic motor 8 input pipelines and valve control mechanism link, and output pipeline is received fuel tank.
Select the place of seawater velocity, the suitable installation underwater windmill of the depth of water, squeeze into pylon 13 piles, the diameter of pile and bury the native degree of depth according to ocean current to the axial action of blade and ocean current, wave active force to cylinder, carry out strength check and draw, the maximum height the when height of pile must be higher than the seawater spring tide.