CN86104768A - Oceanic wave energy receiver - Google Patents

Abstract

Oceanic wave energy receiver, receiving power with arc shaped blade is feature, make 120 °-180 ° arc shaped blade on a vertical shaft, be mounted to the vertical turbine of vertical arrangement, this machine can receive the kinetic energy of wave impact force from any direction in the ocean, facility uses this machine just can receive flow kinetic energy easily in big flow rivers, makes this machine driving generator promptly change into electric energy to kinetic energy.

Description

The liberation of productivity is being represented in the liberation of the energy.The development and use of research new energy are the strong levers that promote the social productive forces development.

Containing unlimited energy in the ocean, only energy of wave energy can be for human inexhaustible.

The formation of wave is the influence that is subjected to the gravitation and the natural wind that the sky, ocean atmospheric physics changes of rotation of the earth, the seawater disturbing phenomenon that is caused.

The characteristics of motion of wave is that the thrust of sine wave period and the stack of particle movement of falling object power are synthesized, and thrust is laterally advanced at the vertical face of seawater, and particle movement of falling object power is carried out on the sinusoidal period of wave.The motoricity of wave, the not independent wave aspect that shows the sea level sine, on the vertical face of seawater, laterally propelling force is carried out with sine wave, and sinusoidal wave amplitude is that the degree of depth with seawater reduces.

The size of wave and the degree of depth of seawater have certain relation, with the size of the overhead natural wind in ocean direct relation are arranged more, and earth attraction is a constant to the disturbance of seawater, and the degree of depth of seawater and the variation of natural wind are that wave forms two big or small parameters.

In the degree of depth one timing of seawater, the size of the size decision wave of wind-force; In size one timing of wind-force, the size that the degree of depth decision wave of seawater forms.Because the wave amplitude of sinusoidal wave vertically is being that degree of depth increase with seawater reduces, sea water advanced one regularly, and wave amplitude can disappear, and the wave is high for the little deep-sea of wave, shallow sea, exactly sea water advanced have direct relation with influence wind-force.

Fluctuation is not mobile, and it also has a kind of Hui Li, can see that on the seashore limit this time force phenomenon one wave come, then moisture regain.Fluctuation is the combination of impact force and restoring force under certain condition, can't see this phenomenon at benthos, and just of wave upon wave the company of seeing gushes.

The moving direction of wave also has a kind of irregular phenomenon sometimes, and this is that the influence of wind-engaging force direction causes.

For the physical property of wave, mention simply key is how to go to be familiar with the energy of wave and to take appropriate measures by these characteristics, removes to receive this energy and utilizes for it.

Moving is the conversion situation of energy, and the existence that energy is just arranged is arranged, and this is the basic law of proper motion, how many kinetic energy amounts of accumulateing in the ocean has on earth, is unable to estimate really, and billow is huge in the ocean, the power of tsunami all is the embodiment of sea wave dynamic energy active force, the amount of accumulateing is big can be described as unlimited.

According to the ocean wave motion characteristic, design the structural principle of wave energy receiving machine below:

Fluctuation is a kind of fluid motion, and is though this fluid motion has direction, irregular all the time, should allow fluid motion, receive the irregular motoricity of this direction again, this is the main feature of design fluctuation receiving machine, and the rotation principle of arc leaf-type impeller machine adapts to this characteristics just:

The characteristics of arc leaf are: blade becomes the semicircle camber, on angle of mechanics, rotate the camber blade, the resistance that the resistance of back side arc is streamline friction frontal arc is that area receives, so just form the power difference great disparity of frontal arc and back side arc, utilized the mechanics principle of this kind arc blade profile, designed the water turbine that a camber blade is vertically arranged, can receive impact force, make the direction rotation of frontal arc to back side arc from any direction.Arc blade profile water turbine had both adapted to flowing of fluid, adapted to the direction irrgular movement of fluid under different condition again, and the camber water turbine was rotated under the effect of impact force, and the first step process that wave stroke kinetic energy is converted to mechanical kinetic energy has just been finished; Make the water turbine of rotation drive generator for electricity generation again, just finished the transfer process in second step of wave energy, this is the basic principle that kinetic energy of wave receives conversion.

From the general theory notion, establish the size that an example is had a look the wave energy receiver power, to show clear and definite its benefit notion.

Example: if ocean wave is high 3 meters, 1 meter of the reception face width of camber wave energy receiving machine, high 10 meters, seawer quality is 1000m ³Kilogram, striking velocity is pressed velocity of wave equation: c= $\sqrt{\mathrm{gh}}$ Rice, second, ask power W: power equation: W=MA

: g is a free-fall acceleration; H is a wave height; M is the quality of water; A is a receiving area;

Be velocity of wave substitution equation.

1000 kilograms * 1 meter * 10 meters * $\sqrt{\mathrm{9\; ·8\; \times \; 3}}$ 55.000 kilogram-metre seconds of ≈; 1 kilowatt=102 kilogram-metre seconds

Corrected performance: 55,000 kilogram-metre ÷ second, 102 kilogram-metre second=538 kilowatt.In this case, a little wave energy receiving machine, under the situation of general wave, received power is just considerable: up to 7-9 rice, velocity of wave reaches 8-10 rice at the zone, deep-sea in ocean wave, and this wave energy receiving machine more can be brought into play its due benefit.

(structure of arc blade profile wave energy receiving machine with by dress)

The mechanical design structure of arc blade profile wave energy receiving machine, and it is uncomplicated, agent structure by a steel axle and radian the camber blade between 120 °-180 ° vertically arrange by dressing up water turbine, the camber blade is made by the steel plate of certain intensity, and the camber blade of water turbine can be by dressing up 4 files, 6 files or more some more number of the arrangement.

Pedestal:

Pedestal is the location facilities by the dress water turbine, with 4 vertical columns that stretch to the seabed, with the cross of steel, the bottom of 4 root posts is reinforced, and presses the dress bearing in the central position of cross, the bottom of location water turbine running shaft; 4 root posts are reinforced with the cross of steel in the top of pedestal, press the positioning bearing of dress water turbine running shaft in the central position of cross, and water turbine is installed in the neutral position, is paved into platform with steel plate on the cross of top and both can.

Generator:

By the dress generator, the power selection of generator equates to get final product with the power of water turbine, need not give unnecessary details the design of generator on the running shaft top of the platform water turbine that exceeds the water surface, and present hydraulic turbine generator various in style can be selected arbitrarily.

The relevant mathematical formulae of design wave energy receiving machine

Formula one: velocity of wave equation c=

With reference to two ripples of College Physics: in the formula

C-velocity of wave meter per second

G-free-fall acceleration 9.8 meter per seconds ²

The h-wave height

According to this equation, know wave height, can obtain wave propagation velocity

Formula two: power equation W=MA

, in the formula

W-power, kilowatt or horsepower

The quality of M-seawater or water, kilogram/cubic meter

-velocity of wave meter per second

1 kilowatt=102 kilogram-metre second=1.36 horsepower,

1 horsepower=75 kilogram-metre second=0.736 kilowatt.

By above-mentioned formula calculated value is the theoretical power (horse-power) value, and in power generation process, turbine efficiency accounts for 0.70-0.85, and generator efficiency accounts for 0.88-0.90:

In formula three: rotating speed formula: h=(C)/(2 π R) t formula:

N-per minute rotating speed rev/min

C-velocity of wave meter per second

2 π R-circumference formula, the circumference of water turbine

60 seconds/minute t-time

This formula calculated value is a theoretical value, and income value is rev/min.

In formula four, arc length formula: L=(n π R)/180 formulas:

L-arc length length

The number of degrees of n-arc

The radius of R-arc is referring to planimetry

The radius of known arc and radian just can be obtained arc length, and this formula is used to ask the arc length of arc blade profile blade.

Formula five, moment of torsion formula: Md=(71620N)/(n) centimetre kilogram, in the formula:

Md-moment of torsion centimetre kilogram

The 71620-coefficient

N-horsepower

The n-revolutions per

Formula six, bear the axle of bending and torsional load, necessary diameter formula:

$\mathrm{d=3}\sqrt{\frac{\mathrm{Md}}{\mathrm{0.2L}}}$

Referring to " gear capacity " book.24 pages of West Germany AK Thomas works.In the formula:

The diameter of d-load axle

Md-moment of torsion centimetre kilogram

L-maximum allowable warping stress kilograms per centimeter ², according to the material selection of axle.

The diameter formula of axle also can be pressed $\mathrm{d\; =\; A\; 3}\sqrt{\frac{N}{n}}\mathrm{（）}$

D-shaft diameter A-shaft material and allowable stress relation value

N-power, kilowatt

The n-rotating speed/minute

Referring to 448 pages of " village small station " books, the Zhejiang People's Press.

Formula six is diameter formula of load output power axle, and this formula is used for calculating the diameter calculating of wave energy receiver output axle.

The volume formula of formula seven, round platform cylinder:

V=(π h)/3 (r ²+ r ² ₁+ rr ₁) in the formula:

V-volume r ₁The higher authorities' radius of-round platform post

Following radius of π-Ratio of the circumference of a circle to its diameter r-round platform post

H-round platform post height

This formula calculates the running shaft volume of wave energy machine by dress arc blade profile blade: because of the received power of water turbine is synthetic from bottom blade to the top vane area integral, show that the warping stress size on the running shaft length section is different.Say clearly, below power little, above torsion big, total output is integrated on the section of output shaft, thus the design running shaft should be round platform cylinder rather than cylindrical body, can reduce the volume weight of running shaft like this.

The purposes of wave energy receiving machine:

This invention is mainly used in the reception of oceanic wave energy; Secondly can also receive the flow kinetic energy of big flow rivers, as bigger locations of rivers velocity ratio such as the Changjiang river, the Yellow River, Jinsha jiang River, Dadu River, the Yarlung Zangbo River, this machine project organization is independently used in combined type or dispersion, need not build large-scale facility, just can use this machine to receive the generating of flow kinetic energy simply, the flow situation of these rivers, I witnessed then, be not casually to get on very well, can riverine development flow kinetic energy.

China's rivers flow is big especially, builds large hydropower station, invests highly, also is subjected to the restriction of conditions such as landform, human and material resources, utilizes this machine, and little investment is disperseed independently riverine reception traffic engineering capability, can receive satisfied effect equally.

Technical scope under the present invention, new energy technology development.

Additional disclosure be exactly, build the oceanic wave energy power station, " the vertical kinetic energy receiving machine of arc blade profile " that should apply for same a kind of principle of inventing with me simultaneously and use, the pedestal of same like this facility, beneath by dress wave energy receiving machine reception kinetic energy of wave, receive the kinetic energy in the sky, ocean above the top by dress kinetic energy receiving machine, can neglect neither; Wave and oceanic winds are simultaneous on the ocean, though the oceanic winds energy of this cheapness is low.There is its reception to be worth equally.Calculate simply with regard to clear and definite its value, strong breeze is normal oceanic winds, almost have everyday, wind speed mean value 12.3 meter per seconds, establish high 50 meters, the wind energy conversion system received power that diameter is 2 meters, the 1.29 kilograms/m of quality of wind ³

Substitution power equation: W=MAC

1.29 kilogram * 50 * 2 * 12.3 meters second=1586 kilogram-metre seconds

1586 kilogram-metre ÷ second, 102 kilogram-metre second=15 kilowatt

" the vertical pneumatic function receiving machine of arc blade profile " describes Patent Office in detail has my application material, application number: 86103378; This machine aims at and receives oceanic winds and wasteland, desert wind and design.

Claims (3)

1, the main body mechanism that turns round continuously is to be the water turbine of major character with the camber blade, becomes vertical turbine by the semicircle camber blade-shaped of adorning some vertical arrangements on a Steel Work cylindrical body vertical shaft, it is characterized in that:

A, blade radian should be at the semicircle cambers between 120 °-180 °.

B, semicircle camber blade and vertical shaft are vertically arranged affixed formation camber turbine.

The two ends of C, cylindrical body vertical shaft by the bearing positioning support, should be rotatingshafts.

D, according to the requirement of C, the positioning support bearing should be installed on the locating support at two ends, the end, impeller vertical shaft top, water turbine is in the centre of two stands.

Two ends locating support at the bottom of the top of E, pivoting leaf turbine, when using Steel Work " ten " cabinet frame localization method, the vertical rotation shaft bearing is installed in the central position of " ten " cabinet frame.

F, according to the requirement of E, four terminations of location " ten " word are fixed in and stretch to the supporting that suspends on the fixing column in seabed.

2, according to the described design apparatus of claim 1, the impact force of kinetic energy of wave is impacted on the blade of semicircle camber, the just directed rotation of turbine.

3, according to claim 1 and claim 2, affixed generator and pivoting leaf turbine vertical shaft on " ten " word position shelf on top, can generate electricity, finish the receiving course of whole wave energy.

Images