DE1488997B2 - OCEAN WAVE POWER MACHINE TO DRIVE AN ELECTRIC GENERATOR - Google Patents

Description

3 4

The arrangement 28 and the electrical generator 29 When waves occur in the ocean, they are set up in this space. The connection is the buoy up and down. If the tube 23, which lies between the spaces 22 and 25, the period T _{1 of} the wave is shorter than the size has a small horizontal cross-section and is T ₂ , the buoy is possibly watertight due to the large mass of the carrier. The air pump 5 unit space 25 is almost completely retained, and space 24 is attached to the upper space 22 and a relative movement between the buoy and the underside is accessible to seawater. Occurring on the surface of the water. If the size T ₁ side is the space 24 but is equal to the size T ₂ via the air line 27, the case of resonance is accessible to the air. The inertial space 25 and the vertical movement of the buoy with respect to the buoy has a buoyancy force and a large mass. Due to the io water surface grows strongly. If the size T ₁ attached below the inertia space 25 is greater than the size T ₂ , there is no relative weight 26, the buoy is held in a vertical position. movement of the buoy to the surface of the water. Via the air line 27 and via the arrangement 28 The air in the air pump chamber 24 is compressed and expanded as a result of the air pump chamber 24 standing with the free air in this relative movement. Link. The arrangement 28 includes four blades 15. Therefore, air flows through the air duct 27 out of the air flap or flaps shown in FIG. 2 and 3 are shown air pump chamber to the outside and vice versa. The electric generator 29 is also in the air pump room with the door. The air damper assembly 28 is coupled, and its output terminals and turbine 28 are actuated by these air clamps to flow with the secondary battery 30. F i g. 2 and 3 show the corresponding. . 20 corresponding mode of action.

The buoyancy of spaces 23 and 25 is slightly greater. The four air flaps 31, 32, 33 and 34 will

than the weight of the whole buoy, so that the direction of the air flow is always the same

Water surface steered approximately at the height of the middle of the direction. For example, if there is air out of the

Connecting pipe 23 is. When the buoy space 24 exits to the outside, as shown in FIG. 6th

is pushed deeper into the water and then shows 25, the air flaps 31 and 34 open, but the

is released, it will vibrate in lowering air flaps 32 and 33 closed so that the air

right direction. The period T _{2 of} this in the direction of FIG. 6 registered arrows

(natural) vibration is flowing in the following formula. If, on the other hand, air from the outside space is in

specified. the air pump chamber 24 flows in, the air

30 flaps 32 and 33 are open and the air flaps 31

_T _ 2ji and 34 closed so that the air flow in the

-— · ——r— ~ Direction of the in F i g. 3 registered arrows runs.

> _t +5.,) g By the guide vanes 35 this is in the tur-

Air flow entering the air stream 36

T j- ^ i · 1. ι. j 35 wanted given direction. The generator 29 is

In this equation, _{thus always in the g} i _e i _c hen direction means driven.

T _{2 is} the period of the natural oscillation. The device shown is in its structure

π the numerical value 3 14 ^senr simply because they are only the moving parts

S is the horizontal cross-sectional area of the ^four ^ flaps 31 to 34 and that of the turbine

bindunesraumes 23 contains 40 coupled generator. When the parts are out

",.,. _{Λ n} ', ■ n- i-jTi · a stainless material is made

S _{2 is} the horizontal cross-sectional area of the air _{- the facility is} well suited for operation at sea,

pump room 24, tests have shown that an electrical line

ρ is the specific weight of the sea water and _stU ng of more than 1 kW per square meter of the horizontal

M is the total mass including that of the 45 zontal cross-sectional area of the buoy in a white

Buoy included additional watercourse of 2 meters high and a wave duration

Dimensions. of 6 seconds can be obtained.

1 sheet of drawings

Claims (3)

1 2 vibrations of the container and the water column in the claims: swing standpipe. From the DT-PS 2 12 289 a wave power plant is 1. With ocean waves operated prime mover known, in which one immerses in moving water Drive of an electric generator, with 5 similar, open at the bottom air tank between one Float, which is an air pump circuit for a valve that opens outwards Chamber contains the lower end for the through a compressed air line or under intermediate seawater open and at the upper end for air switching of an inwardly opening valve is accessible, and with a turbine driven by a suction line with an air engine a flow of air is driven, which is connected by io, so that the air is circulated from the contained in the air pump chamber, as leads, in which it is from the rising water column Piston-acting seawater is generated by pushing out the air reservoir and by falling through it characterized in that the period is sucked into the water column and thereby the force vertical natural oscillation of the floating machine drives. There is a self in the compressed air line body equal to the average Schwin- 15 inwardly opening valve to complement the for period of ocean waves. air volumes required for the operation of the system 2. The engine according to claim 1, thereby switched on, while in the suction line a indicates that the float is connected below the outward opening valve, which is at the air pump chamber (24) another chamber- an excessively high rise in the water in the Bemer (25), which at the lower end of a Ge ao holder allows an exit of the air. This weighted (26) contains, which the floating body knew but is not buoyant. holds in a vertical position. The invention is based on the object of a 3. Power machine according to claim 1 or 2, to indicate there wave power machine that has a higher characterized in that a system of four generates electrical power than those previously known Air flaps (31 to 34) are provided, which 35 machines. In particular, the vertical relative dia the air pump chamber (24) flowing out movement between the floating body and the Air and the water surface flowing into the air pump room are increased. mending air always in the same direction through The invention solves this problem by the im the blade arrangement (28) of the turbine through- patent claim 1 characterized engine,
directs. 30 When dimensioning the float in accordance with Invention, the float vibrates in resonance with the waves, whereby large amplitudes of movement are achieved. The float preferably has below The invention relates to a further chamber, driven by ocean waves, in the air pump chamber, for driving an electric motor, which contains a weight at the lower end, which see generator, with a floating body that holds the floating body in a vertical position. This contains air pump chamber, which at the lower end, the lower chamber also has the advantage that it is accessible, and with a turbine, which is reinforced by a buoyancy of the floating body.
Air flow is driven, which is contained in 40 A further increase in the electrical power of the air pump chamber, as a piston can be achieved in that a system of four kenden seawater is generated. Air flaps is provided, which from the Such engines for converting the air pump chamber outflowing and into the The energy of the ocean waves in electrical energy, the air pumping in the air is always at the same time. B. from US-PS 30 64137 known. They serve 45 chen direction through the blade arrangement of the mainly for power generation in buoys or in turbine. In contrast, it flows stations distant from the coast, where on the exclusive example in the case of the aforementioned US-PS Use of accumulator batteries because of the 30 64137 known machine the air either only lack of charging capability must be dispensed with when lifting the water in the air pump chamber and where one assembly of the machine on the marine 50 through the turbine, or there are two separate ones soil is very difficult or impossible. The lei-shovel rings required, each in one direction the known floating force must be freely rotatable. machines for the desired recharging of the battery - A preferred embodiment of the invention rien, however, is not satisfactory in many cases, is shown in the drawing. It shows
because the vibration behavior of the swimming 55 F i g. 1 shows a section through the engine and the body does not pay sufficient attention to FIG. 2 and 3 details of the construction of the and therefore often does not have a sufficiently powerful ReIa machine in its upper part.
tive movement between float and water The power machine shown is suitable for he follows. especially for the deep sea area. It consists of one From DL-PS 25 164 is a device 6 ° upper space 22, a connecting pipe 23, a for converting the wave energy into electrical air pump room 24, an underwater energy known, in which a perpendicular in a borrowed inertia space 25, a weight 26, a floating container arranged open standing air line 27, a guide and turbine blade pipe is provided in which a float led order 28, an electrical generator 29 and is, which is used to transmit the translational movement 65 of an accumulator battery 30. The mutual on a generator with this through a tooth position of these parts goes from F i g. 1 emerged. The upper rod is connected. The float should correspond to space 22 is waterproof and contains the corresponding to the phase difference between the diving air line 27 and the accumulator battery 30.