Untitled record

The invention be meets a wave power plant with a reservoir for water, especially seawater and arranged in a drain line of the storage tank turbine for a generator and with a shaft-driven conveyor with pipe or hose lines and at least one check valve or a check valve for up-feeding the water from a generally wave-moved lake or sea in the reservoir. The energy of the waves is indirectly used to generate electrical energy.

In addition to running power plants and storage power plants' wave power plants are known. These take advantage of the periodic up and down movement of the water surface in order to keep floating bodies, which have only one degree of freedom in the vertical due to their special storage in motion. A stroke coming from these floats is kinematically converted into a rotary motion which is transmitted to a generator. Furthermore tidal power plants known, in which a pool fills at high tide and results in a fall when emptying the pelvis and return to the sea at low tide. The generator power is proportional to the product of water quantity and drop height. The aforementioned wave power plants convert the wave energy directly into drive energy for the generator. Arrangements are also known in which water is pumped up by wave energy into a collecting tank, from which it is available according to the energy requirement and decoupled from the uneven power of the wave motion for processing via the turbine.

With the utilization of the sea surf has been the AT-PS 66 107 busy. It has been proposed to provide a rigid baffle in a coastal bight which redirects the surf into at least one riser feeding a sump.

In GB-OS 2,131,886 this idea is continued.

The riser pipes are d associated with baffles, under

AT 000 228 Ul which the water ascending on a quay wall due to the waves begins to catch. The water is thereby pressed with pressure in the riser tubes, in which check valves prevent a flow direction reversal. In this way, a buffer of the amount of water buffering is fed, from which the water is guided in a drain line via a turbine.

Another proposal can be found in EP-Al-50 323.

The air transported in the troughs is trapped under a guide surface and led into a space in which the pressure increases progressively through introduced air. From this space, water is displaced and transported in a riser into a basin.

The invention is based on the indirect energy conversion by Hochfeördern the storage medium water due to the wave motion. A wave power plant of the type described above is according to the invention characterized in that as a conveying device in the. Effective range of the waves, especially near the shore of the sea, provided with Wassereinlaßk'lappen pump chamber is provided below the water level substantially stationary, whose one wall, in particular the side wall facing the bank, is formed pivotable in the interior of the pump chamber, that the pivotable side wall is rigidly connected to at least one baffle plate, which projects beyond the pump chamber and is in the Angriffsbereich.der waves and that from the pump chamber, the pipeline or

Hose line leads, which leads into the reservoir. The energy and mass of the waves acts on the counteracting, pivotable baffle plate, which is folded down into the plane of least resistance, thereby pushing the rigidly coupled side wall of the stationary pump chamber like a piston into it, the water trapped therein is through the subsequent Pressed pipeline and * passes through a check valve in the reservoir. The continuous dynamics of the wave motion of the sea allows the pump to work continuously. It is useful if the baffles at3

AT 000 228 Ul side of the pump chamber are provided on a common rotatably mounted axis on which also sits in the interior of the pump chamber sphwenkbare side wall. Thus, the force-absorbing surface is much larger than the work surface. The pivoting side wall is in consideration of the counter-acting impact plates in their stable state, eg Oriented by its own weight by additional weights or by spring force in the vertical and the baffle plate or Baffles lie in the plane of the sidewall. For largely inertia-free provision, a return flap is provided in the pivotable side wall, which in pivoting the side wall into the interior of the pump chamber is closed and opens in the reverse rotation in the vertical starting position. This is also the entry of water connected. If the chamber pivotable in the interior of the pump chamber is formed as a pivot cover or pivot bottom of the pump chamber, then the weight of the shaft presses the wall into the interior of the pump chamber and causes in this way a pump stroke. This can still be supported by the energy taken up by baffles. A particular embodiment is characterized in that the pivot cover or pivot bottom is an approximately horizontal. Has stable rest position and is rigidly mounted on a rotatably mounted axis of rotation that at least one .Rotplatte is rigidly connected to the axis of rotation and that the baffle plate assumes a vertical stable .Lage, from the. it is swingable by wave motion. It is expedient if the pivot cover of the pump chamber is arranged approximately in the region of the water level and of the Waves are rolled over. To adjust the stable position, the pivotable wall is formed buoyant or with a float or Buoyancy body connected. Furthermore, the hose may be formed of elastic material, wherein the cross section expands during the upfeed of water and does not shrink between the pump strokes. As a result, the force acting on the check valves or valves water column in Durch4

AT 000 228 The diameter is reduced and the back pressure on the part of the filled hose is reduced for the next stroke.

An embodiment is shown schematically in the drawings. FIG. 2 shows a pump chamber in front view and FIG. 3 in oblique view, FIG. 4 shows an alternative to FIG. 1 and FIG. 5 shows an oblique view to FIG. 4th

According to FIG. 1 is located in the shore area of ​​the sea, where the wave motion as evenly as possible and pronounced, a pump chamber. 1 This includes a directly below the water surface arranged, closed, box 2, which on its side facing the bank 3 has a pivotable side wall 4 - The box 2 is at the bottom by two horizontally aligned, obliquely from the box ^ regfüh- .. anchored or anchored vertically on a pole or between two posts. The pivotable side wall 4 depends like a flap vertically on a rotatably mounted axis 5, on which two "baffles 6, 7 are permanently mounted. These baffles 6, 7 project beyond the box 2 of the pump chamber 1 upwards and are in the immediate sphere of influence of the waves 8 which overturn in the vicinity of the banks. The installation is made so that the box 2 floats under water and that each shaft 8 acts directly on the baffles 6, 7 and this from a stable vertical position in the dashed position shown in FIG. 1 and even more. As a result, the side wall 4 fixedly connected to the baffle plates 6, 7 pivots into the interior of the box 2 and presses the water volume located there into a pipeline 9, which is filled with water.

Check valves 10, 11 is equipped. As soon as the action of the shaft 8 ends, the side wall 4 returns by self-weight additional weight or spring force in the vertical position shown in Fig. 1 with solid lines. The box 2 of the pump chamber 1 fills with water through a flap 12 in the side wall 4 and through further flaps (not shown) on the walls of the box 2. The flap 12 closes,

AT 000 228 Ul as soon as the side wall 4 pivots in and is open in the vertical, unpressurized position of the side wall 4 (or does not resist the inflow of the water). Also, all other, not shown flaps are arranged so that they close at an internal pressure in the pump chamber, s odaß the box 2 acts as a pump cylinder and the side wall 4 as a pump piston.

The effective surfaces of both the side wall 4 and the baffles 6, 7 are coordinated so that enough force is transmitted from the wave motion to fully swing in the side wall 4 can. The area ratio may be 3: 1, for example. There may be a plurality of box 2 next to each other but also one behind the other.

Through each wave a stroke, the water through the

Pipe 9 presses. In order to avoid backflow, the check valves 10, 11 are provided. The dimensions of the pump chamber 1, their volume and the tube cross-sections of the pipe 9 are dimensioned so that a high pump efficiency and a high head (eg, 10 m) results.

The pipe 9 opens into a reservoir tank 13, from which the water passes through a downpipe 14 to a turbine 15, which has a ele ktrischen generator 16 drives.

About the return line 17 the Wasser.in returns to the sea.

By interposing a reservoir 13, the intermittent water supply is compensated by the pump chamber 1, so that adjusts a constant flow after a start-up phase in the downpipe 14. This is also achieved or favors that several pump systems of FIG. 1 are connected in parallel and feed into the reservoir tank 13.

The pump chamber 1 can be made variable in height for adaptation to ebb and flow (eg following the water level sluggishly, but not the shaft).

According to Fig. 4 and 5 is in a pump chamber 1 'a pivot

AT 000 228 Ul cover 4 'is provided, which is mounted on a rotatably mounted shaft 5'. The pump chamber 1 'is substantially closed. It only has water inlet flaps (not shown), which in a pump stroke infol ge of the increased internal pressure in the pump chamber 7d I t close. Due to the wave weight of the floating or floating lid 4 'suspended in the vicinity of the water surface is forced into the interior of the pump chamber 1' and the water is forced from the interior into the pipeline 9 ', wherein

Check valves 10 'and 11' are provided. The further use of the pumped water corresponds to FIG. 1. Zur'Verstärkung the pumping effect can on the axis 5 'side of the pump chamber 1' each baffle plates 6 'and 7' can be arranged. These are pressed down by the approaching shaft or folded down and press, as they are rigidly connected via the axis 5 'with the pivot cover 4', this in the interior of the pump chamber 1 '. The pivot cover 4 '. can be connected to a float 18, which in the rest position the position shown in solid lines nach.Fig. 4 hersteilt, so the swing cover 4 'horizontally suspended.<

The pipe 9 'can also be realized by a hose, wherein the hose is made of elastic material. He reduced at low internal pressure the Druchmesser (strangles), so that only a relatively small amount of water between the pump strokes in the hose remains standing and to be overcome back pressure on the flaps 10 ', 11' is low. But when water is pushed into the hose during a pump stroke, it expands itself and ensures a high throughput volume. ..

It should be mentioned that the movable side wall / in the manner of a Kalbens in the interior of the pump chamber * 7 can be mounted parailel einschiebbar. This embodiment corresponds functionally to the rotatability of the sidewall in an axis of displacement necessary to displace water from the pumping chamber.

AT 000 228 Ul