DE102022123700A1 - Modular system and fish ladder - Google Patents

Abstract

Fish ladder system (1), which during operation is arranged on a weir (3) arranged in a river (2) and which separates an upper water (4) of the river (2) from a lower water (5) of the river (2), wherein at least one fish ladder (6) is provided, which enables fish to climb from the lower water (5) to the upper water (4) during operation. It is proposed that a buoyant floating body (7) is provided which carries at least one fish ladder (6). Furthermore, a modular system (30) with at least one fish ladder and an arrangement (40) with a preferably floating hydroelectric power plant (31) are specified.

Description

The invention relates to a modular system and a fish ladder as well as an arrangement with a preferably floating hydroelectric power plant and at least one fish ladder. The fish ladder system enables fish to rise from the lower water of a river to the upper water of the river.

From the EP 2 735 728 B1 A hydroelectric power plant with a working screw and a screw conveyor is known. The conveyor screw is typically used for fish ascent, while the work screw is used for fish descent.

From the WO 2018/146289 A1 a hydroelectric power station is known.

The object of the invention is to provide a fish ladder, a modular system and an arrangement with a preferably floating hydroelectric power plant and at least one fish ladder, which enable an improved design and functionality.

The task is solved by a fish ladder with the features of independent patent claim 1, by a modular system with the features of patent claim 9 and an arrangement with the features of patent claim 10. Advantageous developments of the invention are specified in the subclaims.

The object is achieved by a fish ladder, which is arranged in operation on a weir arranged in a watercourse, which separates an upstream water of the river from a lower water of the river, wherein at least one fish ladder is provided, which during operation provides a fish ladder from the downstream water to the upper water and a buoyant floating body is provided which carries at least one fish ladder.

Furthermore, the object is achieved by a modular system with at least one such fish ladder and at least one floating hydroelectric power plant, the at least one fish ladder being at least indirectly connectable to the at least one floating hydropower plant.

In addition, the object is achieved by an arrangement with a preferably floating hydroelectric power plant and at least one fish ladder, which is arranged in operation on a weir arranged in a river and which separates an upper water of the river from a lower water of the river, wherein the fish ladder has at least one Has a fish ladder, which enables fish to climb from the underwater to the upper water during operation, and wherein the at least one fish ladder of the fish ladder is guided through at least one turbine suction pipe of the hydroelectric power plant.

It is advantageous that at least one fish ladder is designed as a fish ladder, fish lift, fish lock, Denil fish pass or meander fish pass. This provides a wide range of applications.

It is advantageous that an outlet nose is provided, which is arranged above the headwater during operation and/or that at least one line is provided with which the floating body is connected to the weir and/or a weir pillar and/or a bank during operation. This makes an advantageous embodiment possible for arranging and attaching the fish ladder (fish ladder) to the weir.

It is advantageous that the outlet nose is designed in such a way that raking into the weir is made possible during operation by means of the outlet nose and/or that at least one support element, in particular a support poster, is provided on the outlet nose, by means of which the outlet nose is attached to the weir during operation can be supported in particular horizontally and/or vertically. This results in a particularly advantageous and safe arrangement on the weir. This can also simplify trusting or the like.

It is advantageous that the outlet nose is immersed in the upper water during operation and the floating body does not rest on the river bottom in the lower water. This allows advantageous adaptation to different water levels.

It is advantageous that the floating body has at least one ballast tank for adjusting the buoyancy. This provides an advantageous opportunity to set, in particular regulate, a draft.

It is advantageous that a system technology provided for at least the at least one fish ladder is carried by the floating body and/or that at least one cable drum is provided, which is at least essentially supported by the floating body, the cable drum being used to roll up a flexible cable in operation for electrical use to connect the system technology to an external power grid. As a result, an electrical energy supply can be made available in an advantageous manner.

It is advantageous that a self-propelled device is provided, which is used to move the floating body in the water. This further improves self-sufficiency.

With the floating fish ladder, a conventional fish ladder can be installed on a floating body. Various techniques can be used for fish ladders, which can be installed compactly on the floating body. In particular, a fish ladder, a fish lift, a fish lock, a Denil fish pass or a meander fish pass can be used. These can be installed floating on a floating body. The entire floating fish ladder is preferably mobile and preferably not permanently connected to the structure (weir). The floating fish ladder is preferably approached to the weir with a minimum draft in the underwater. This can preferably be done using your own drive or a tractor or cable winches. The fish ladder is preferably moved over the top of the weir so that the outlet nose of the fish ladder is above the headwater level.

To ensure that the floating fish ladder is held securely in position, it is preferably either “raked” into the body of the weir, if possible, or, depending on its size, moored to the weir and/or weir pillars and/or bank with one or more forelines, aftlines, foresprings and aftsprings. In some cases, additional stabilization can be achieved between the fore/aft line and the spring using a “chest” or cross line. Raking into the weir body is preferably done via an outlet nose of the fish ladder.

The floating fish ladder is then lowered or submerged to operating level, preferably via one or more controlled floating bodies. The draft is preferably set so that the outlet nose of the fish ladder is immersed in the upper water and the floating body does not rest on the river bottom in the lower water. By lowering it, the outlet nose of the fish ladder can then be “raked” onto the weir body if it can absorb the additional load. Alternatively or possibly additionally, the floating fish ladder can be fixed to the weir and/or weir pillar and/or bank using lines.

The fish ladder can then be put into operation. There are various options. Preferably, either the water from the upper water is pumped over the weir crest into the fish ladder, which then flows down. Or the fish ladder pumps water from the lower water to the upper water, which is possible with a fish ladder.

The entire system technology, including motor, control, etc., is preferably located on the floating body, so that only a power supply from land may be required. The power supply is preferably provided via a flexible cable which is connected to the power grid with a plug on land, in particular on the weir, a weir crest or on the bank. This plug can be detached and the cable is then rolled up onto the cable drum located on the floating body.

In the event of flooding, the entire floating fish ladder can preferably be floated away, for which it preferably has its own drive. This can also be done using a tractor or winches. The fish ladder must then be securely moored in a place protected from floating debris. Alternatively, in an advantageous embodiment, in the event of flooding, the entire floating fish ladder can be brought to a minimum draft, i.e. float, and kept at a safe distance from the weir using ropes.

In order to create a sufficient attracting current for fish and creatures so that they can find their way into the floating fish ladder, an attracting current can be generated as follows. This attracting current can preferably be generated either via a hydroelectric power plant, e.g. by one or more turbines, which have their outlet in the immediate vicinity of the floating fish ladder, or via a separate pipe which takes water from the upper water, which is done by a pump or a siphon can be done.

The difference in height between the upper water level and the downstream water level is preferably the head. Flotsam and ice separators as well as floating bodies and possibly several floating bodies can be provided at the outlet. One or more extendable and lockable supports that can be operated hydraulically or electrically can be provided at the outlet. The The supports can be arranged vertically or diagonally.

At least the outlet of the fish ladder can be raised and provided with a sealing surface. Furthermore, a pivot point can be specified if the outlet is to be raised. A drive for raising the spout can be provided, which can be hydraulic or electrical if the spout is to be raised.

Furthermore, dampers that can act horizontally and vertically can be provided if there is contact with the weir. A damper may be provided at the lower edge of the outlet of the fish ladder. In one possible embodiment, the lower edge of the outlet of the fish ladder is kept constantly above the weir, whereby a sufficient distance can be specified.

The fish ladder is preferably realized with an inclined axis. A motor with or without a gearbox or belt can be provided here. At least one buoyancy body can be provided with or without drive and/or control, so that the function of a ship, a pontoon or the like is realized.

One or more ballast tanks can be provided for buoyancy control and as a counterweight to the end of the fish ladder. The electrical equipment (system) preferably also serves as a counterweight to the motor, including its control and monitoring. A transformer and a medium-voltage switchgear can optionally be provided. A hydraulic unit can optionally be provided. One or more cable drums can be used for power and control cables. However, these can also be arranged on land or on a floating power plant. Low voltage or medium voltage can be used. A plug system can be used for easy disconnection and connection.

One or more extendable and lockable supports, which can be designed hydraulically or electrically, can be arranged on the floating body, whereby the arrangement can be vertical or oblique. One or more attachment points can be provided on the floating power plant or the floating fish ladder in order to moor the floating power plant or the floating fish ladder, which is preferably done either with the weir and / or with weir pillars or other floating bodies.

One or more attachment points can also be provided on the weir and/or on weir pillars or other floating bodies in order to moor the floating power plant and the floating fish ladder.

It is also particularly advantageous to integrate the fish ladder into the suction pipe of the turbomachine, in particular the turbine. A particularly advantageous embodiment of the fish ladder, which z. B. can be designed as a fish ladder, fish lift or fish lock, then the function or transport through the suction pipe, since an attracting flow for entry into the fish ladder can be generated directly via the suction pipe of the turbine.

• 1 eine Fischaufstiegsanlage in einer schematischen, auszugsweisen Darstellung in einer Seitenansicht quer zu einer Fließrichtung des Fließgewässers entsprechend einem Ausführungsbeispiel, wobei eine Anordnung an einem Wehr dargestellt ist und mögliche Niveaus beziehungsweise Wasserstände eines Ober- und Unterwassers gezeigt sind;
• 2 eine schematische, räumliche Darstellung der in 1 gezeigten Fischaufstiegsanlage, wobei eine Anordnung an einem Wehr dargestellt ist und mögliche Niveaus beziehungsweise Wasserstände eines Ober- und Unterwassers gezeigt sind;
• 3 eine Anordnung mit einer Fischaufstiegsanlage und Wasserkraftwerken zur Veranschaulichung eines modularen Systems, wobei eine Ansicht von oben gezeigt ist, bei der die Fischaufstiegsanlage und die Wasserkraftwerke an einem Wehr angeordnet sind;
• 4 eine weitere Anordnung mit Fischaufstiegsanlagen und Wasserkraftwerken zur Veranschaulichung des modularen Systems, wobei eine Ansicht von oben gezeigt ist, bei der die Fischaufstiegsanlagen und die Wasserkraftwerke an einem Wehr angeordnet sind;
• 5 eine Anordnung mit einem Wasserkraftwerk und einer integrierten Fischaufstiegsanlage entsprechend einem Ausführungsbeispiel in einer schematischen Darstellung in einer Seitenansicht quer zu einer Fließrichtung des Fließgewässers entsprechend einem Ausführungsbeispiel, wobei eine Anordnung an einem Wehr dargestellt ist und mögliche Niveaus beziehungsweise Wasserstände eines Ober- und Unterwassers gezeigt sind; und
• 6 die in 5 gezeigte Anordnung, wobei eine Ansicht von oben gezeigt ist, bei der das Wasserkraftwerk mit der Fischaufstiegsanlage an einem Wehr angeordnet ist.

Further advantages and details of the invention are explained in more detail using the exemplary embodiments shown in the schematic figures. Here show:

• 1 a fish ladder in a schematic, excerpted representation in a side view transverse to a flow direction of the watercourse according to an exemplary embodiment, an arrangement on a weir being shown and possible levels or water levels of an upper and lower water being shown;
• 2 a schematic, spatial representation of the in 1 shown fish ladder, where an arrangement on a weir is shown and possible levels or water levels of an upper and lower water are shown;
• 3 12 is a fishway and hydroelectric power plant arrangement illustrating a modular system, showing a top view with the fishway and hydroelectric power plants arranged on a weir;
• 4 another arrangement with fishways and hydroelectric power plants to illustrate the modular system, showing a top view in which the fishways and hydroelectric power plants are arranged on a weir;
• 5 an arrangement with a hydroelectric power plant and an integrated fish ladder according to an exemplary embodiment in a schematic representation in a side view transverse to a flow direction of the river according to an exemplary embodiment, an arrangement on a weir being shown and possible levels or water levels of an upper and lower water being shown; and
• 6 in the 5 arrangement shown, a view from above being shown, in which the Hydroelectric power plant with the fish ladder is arranged on a weir.

1 shows a fish ladder 1 in a schematic, excerpted representation in a side view transverse to a flow direction 14 of the river 2 according to a first exemplary embodiment. Here, the fish ladder 1 is shown on a weir 3, so that operation of the fish ladder 1 is possible. The weir 3 separates an upper water 4 of the flowing water 2 from a lower water 5 of the flowing water 2. In this exemplary embodiment, the fish ladder 1 has a fish ladder 6, which enables fish to rise from the lower water 5 to the upper water 4 during operation. In this exemplary embodiment, the fish ladder 6 is designed as a fish ladder. The fish ladder 6 can also be designed, for example, as a fish lift, fish lock, Denil fish pass or meander fish pass.

The following is the design and functionality of the fish ladder 1 with reference to 2 further described. 2 shows a schematic, spatial representation of the in 1 shown fish ladder 1, wherein an arrangement on a weir 3 is shown and possible levels or water levels of an upper and lower water are shown.

The fish ladder 1 includes a buoyant floating body 7, which carries the fish ladder 6. Here, an outlet nose 8 is provided, which is arranged above the upper water 4 when the fish ladder 1 is attached to the weir 3. Preferably, the outlet nose 8 dips into the upper water 4 during operation. Lines 9, 9' can be provided for attachment, of which in 2 The lines 9, 9` are shown as an example. In particular, the floating body 7 can be connected to the weir 3 for operation via the lines 9, 9 '. A connection with a defensive pillar and/or a bank 20 is also possible.

The outlet nose 8 is designed so that in the in 1 and 2 The operating position of the fish ladder 1 shown at the outlet nose 8 can be raked into the weir 3. For this purpose, support elements 10, 11, 12, which are designed as support posters 10, 11, 12, are provided on the outlet nose 8, via which the outlet nose 8 is supported horizontally and vertically on the weir 3.

The floating body 7 is designed so that it does not rest on the river bed 15 during operation in the underwater 5. Here, a draft can preferably be variably adjusted. To vary the draft, the floating body 7 can, for example, have at least one ballast tank 16, via which buoyancy adjustment is possible. To illustrate the representation is in 1 only one ballast tank 16 marked.

Furthermore, a system technology 21 is provided, which is carried by the floating body 7. In addition, a cable drum 22 is provided, which is also carried by the floating body 7. The cable drum 22 is used to roll up a flexible cable 23, via which the system technology 21 is connected to an external power network 24. Furthermore, a self-propelled device 17 is provided, which is used to move the floating body 7 in the water.

3 shows an arrangement 40 with the fish ladder 1 and hydroelectric power plants 31, 32 to illustrate a modular system 30, with a view from above being shown. The fish ladder 1 and the hydroelectric power plants 31, 32 are arranged on a weir.

4 shows a further arrangement 40 with fish ladders 1, 1' and hydroelectric power plants 31 to 36 to illustrate the modular system, a view from above being shown, in which the fish ladders 1, 1' and the hydropower plants 31 to 36 are arranged on the weir 3 .

The modular system 30 can generally implement arrangements with at least one fish ladder 1, 1 'and at least one floating hydroelectric power plant 31 to 36. Here, the at least one fish ladder 1, 1' is at least indirectly connected to the at least one floating hydroelectric power plant 31 to 36.

5 shows an arrangement 40 with a hydroelectric power plant 31 and an integrated fish ladder 1 according to an exemplary embodiment in a schematic representation in a side view transverse to a flow direction 14 of the watercourse 2 according to an exemplary embodiment. The arrangement 40 is shown on the weir 3, with possible levels or water levels of the upper water 4 and the lower water 5 being shown. Furthermore shows 6 in the 5 shown arrangement 40, a view from above being shown, in which the hydroelectric power plant 31 with the fish ladder 1 is arranged on the weir 3.

In this embodiment, the arrangement 40 is implemented with a floating hydroelectric power plant 31 and a fish ladder 1. During operation, the arrangement 40 is arranged on the weir 3 arranged in the river 2, which separates the upper water 4 of the river 2 from the lower water 5 of the river 2. The fish In this exemplary embodiment, the climbing system 1 has a fish ladder 6. During operation, the fish ladder 6 enables fish to rise from the lower water 5 to the upper water 4. The fish ladder 6 of the fish ladder 1 is guided through the turbine suction pipe 45 of the hydroelectric power plant 31. A flow machine 46, which can be designed as a turbine, of the hydroelectric power plant 31 can be driven by a water flow from the upper water 4 to the lower water 5.

The fish ladder 6 is designed as a fish ladder in this exemplary embodiment. The fish ladder 6 can also be designed, for example, as a fish lift, fish lock, Denil fish pass or meander fish pass.

The invention is not limited to the embodiments described.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2735728 B1 [0002]
• WO 2018/146289 A1 [0003]

Claims (10)

Fish ladder system (1), which during operation is arranged on a weir (3) arranged in a river (2) and which separates an upper water (4) of the river (2) from a lower water (5) of the river (2), wherein at least one fish ladder (6) is provided, which enables fish to climb from the lower water (5) to the upper water (4) during operation, characterized in that a buoyant floating body (7) is provided which carries at least one fish ladder (6). . Fish ladder Claim 1 , characterized in that at least one fish ladder (6) is designed as a fish ladder, fish lift, fish lock, Denil fish pass or meander fish pass. Fish ladder Claim 1 or 2 , characterized in that an outlet nose (8) is provided, which is arranged above the upper water (4) during operation and / or that at least one line (9) is provided with which the floating body (7) is connected to the weir ( 3) and/or a defensive pillar and/or a bank (20). Fish ladder Claim 3 , characterized in that the outlet nose (8) is designed in such a way that, during operation, raking into the weir (3) is made possible by means of the outlet nose (8) and/or that at least one support element (10, 11, 12), in particular a support poster (10, 11, 12), is provided, by means of which the outlet nose (8) can be supported on the weir (3) in particular horizontally and/or vertically during operation. Fish ladder according to one of the Claims 1 until 4 , characterized in that the outlet nose (8) dips into the upper water (4) during operation and the floating body (7) does not rest on the river bottom (15) in the lower water (5). Fish ladder according to one of the Claims 1 until 5 , characterized in that the floating body (7) has at least one ballast tank (16) for adjusting the buoyancy. Fish ladder according to one of the Claims 1 until 6 , characterized in that a system technology (21) provided for at least the at least one fish ladder (6) is carried by the floating body (7) and / or that at least one cable drum (22) is provided, which is at least essentially supported by the floating body (7 ) is carried, the cable drum (22) being used to roll up a flexible cable (23), which during operation is used to electrically connect the system technology (21) to an external power network (24). Fish ladder according to one of the Claims 1 until 7 , characterized in that a self-propelled device (17) is provided, which is used to move the floating body (7) in the water. Modular system (30) with at least one fish ladder (1), which is according to one of the Claims 1 until 8th is formed, and at least one floating hydroelectric power plant (31 - 36), wherein the at least one fish ladder (1) can be connected at least indirectly to the at least one floating hydroelectric power plant (31 - 36). Arrangement (40) with a preferably floating hydroelectric power plant (31) and at least one fish ladder (1), which, when in operation, is located on a weir (3) arranged in a watercourse (2), which has an upper water (4) of the watercourse (2). Separates the underwater (5) of the flowing water (2), the fish ladder (1) having at least one fish ladder (6) which, during operation, enables fish to rise from the downstream water (5) to the upper water (4), characterized in that that the at least one fish ladder (6) of the fish ladder (1) is guided through at least one turbine suction pipe (45) of the hydroelectric power plant (31).

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