EP4155463A1 - Aide à la remontée piscicole iii - Google Patents

Aide à la remontée piscicole iii Download PDF

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Publication number
EP4155463A1
EP4155463A1 EP21198892.8A EP21198892A EP4155463A1 EP 4155463 A1 EP4155463 A1 EP 4155463A1 EP 21198892 A EP21198892 A EP 21198892A EP 4155463 A1 EP4155463 A1 EP 4155463A1
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EP
European Patent Office
Prior art keywords
water
channel
fish pass
pipe
pass according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21198892.8A
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German (de)
English (en)
Inventor
Guido Becker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP21198892.8A priority Critical patent/EP4155463A1/fr
Publication of EP4155463A1 publication Critical patent/EP4155463A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/08—Fish passes or other means providing for migration of fish; Passages for rafts or boats
    • E02B8/085—Devices allowing fish migration, e.g. fish traps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/16—Fixed weirs; Superstructures or flash-boards therefor
    • E02B7/18—Siphon weirs

Definitions

  • the invention relates to a space-saving fish ladder on weirs, dams and other transverse structures in standing and flowing water.
  • the passability is interrupted by numerous technical structures, which are used for discharge control, water drainage, hydropower use, ensuring ease of navigation, flood protection, drinking water storage and production, irrigation, Sole support or the creation of artificial reservoirs for recreational purposes.
  • transverse structures they often form obstacles several meters high in the water, which extend across the entire width and dam up the water.
  • a habitat suitable for reproduction can be many kilometers upstream in a shallow, gravelly stretch of water, while the feeding grounds are more likely to be found in deeper, warmer water and the winter habitats are far downstream in deep oxbow lakes or pools.
  • Upstream continuity must also be established for species that migrate long distances between freshwater and saltwater during their life cycle - the eel is representative of this.
  • the free passability/patency of the water bodies is therefore important for the spread of the species and also for resettlement after flood events.
  • Basin-type fish ladders (conventional basin pass, slot pass, Raugerinne basin pass).
  • the water shovel chain also includes fish shovels, which transport water with fish from the bottom to the headwater and are emptied here.
  • This fish paternoster works in a space-saving manner, but is maintenance-intensive and susceptible to frost due to the many moving parts.
  • a fish pass which consists of individual troughs, which are arranged radially around a central axis, similar to a spiral staircase.
  • the troughs can be uniformly prefabricated at the factory and assembled on site.
  • bottom fish gudgeon, burbot, lamprey, eel, etc.
  • small organisms have difficulty climbing up the basin due to the conducting current.
  • the chute is sloped and composed of chute sections, the chute sections forming a single turn spiral.
  • the chute is externally supported on buttresses located in a dam surrounding the fish pass. Such a trained fish pass must be redesigned for each application.
  • the fish pass after DE 10 2017 004 660 B4 consists of at least one channel that connects the headwater with the tailwater, with the channel having a gradient and being composed of individual channel sections, with the channel being designed in a spiral shape with at least one winding and mounted on pillars, with the pillars supporting the channel at least in sections on the bottom side on the outside and have an overhang on both sides of the channel.
  • the object of the invention is to propose a fish ladder with a low flow rate, which can be assembled from factory-made components, the flow of which comes as close as possible to that of natural waters, which works independently of energy and which can also be used economically for locations with small weirs and streams.
  • the fish pass according to the invention consisting of a channel that connects the headwater with the tailwater, the channel having a hydraulic gradient so that the channel is flushed with water, provides that the canal is a closed canal or pipe that uses the siphon principle, ie there is a water level difference between an upstream inlet and a downstream outlet.
  • the invention opens up a new field of application for the lifting principle.
  • the siphon principle when using the siphon principle as a fish ladder, the lowest possible flow rate is achieved.
  • atmospheric air is introduced in the zenith of the duct or pipe by means of valves for control.
  • the fish throughput can be increased in this way and any vegetation that forms is not washed away.
  • the inlet and outlet should be adjustable so that once the system has been filled with water, it remains in this state.
  • an embodiment is advantageous that provides for a float-controlled slide valve to be arranged in the outlet, which allows the channel or pipe to be filled with water by closing it, so that the lifter is activated after the slide valve is opened .
  • aids which, controlled by a float, reactivate the jack that has come to a standstill.
  • aids which, controlled by a float, reactivate the jack that has come to a standstill.
  • These include a water reservoir that is filled using a ram pump and is located above the canal or pipe.
  • the water inlet is via a valve, preferably a float valve.
  • a water siphon or water ram is a water-driven, intermittently working pump.
  • the ram uses the pressure surge or ram effect to lift some of the water that drives the pump to a higher level
  • This valve or the aforementioned valves are controlled via or vacuum-controlled or float-controlled, i.e. depending on the filling level in the siphon pipe/channel.
  • the sliders which can close the channel or pipe on both sides, are also controlled by means of a float, which is connected to a closing body in the channel or pipe via a rod with an axis, so that the Up and down movement of the float is transmitted to the closure body.
  • all duct or pipe sections should be connected to one another with a force fit using one seal each.
  • the space required is small because only two pipes are required, the pipe/channel between the upper and lower water and the ram pipe for filling up the water reservoir.
  • inlet and outlet are preferably arranged telescopically and can be adjusted by means of floats.
  • inlet or outlet does not necessarily have to be supported on a foundation.
  • a further advantageous embodiment provides that a basket-like propellant retainer is arranged in front of the inlet and/or outlet. This prevents clogging of the channel or pipe.
  • an advantageous embodiment provides that lure current guides or Guide devices are arranged in the area in front of the inlet.
  • the 1 shows a fish pass, hereinafter also referred to as a fish pass and/or ascent and/or descent passage.
  • the fish passage described here designed according to the siphon principle, is a solution that is particularly suitable for eels and other fish standing on the bottom, as an ascent and/or descent passage over or in barrier structures of all kinds, without a general restriction to these fish should be made.
  • Barriers of almost any height can be overcome via module segments in approx. ten meter steps (height differences), added cascaded.
  • the animals By means of a suitable lure current, the animals then find contact with the current in the limited bottom area of the target position, through which they complete the passage into the underwater 2 over the shortest distance with the volume flow of the siphon.
  • Repellent construction elements are intended to prevent the deepest part of the target position in the headwater from becoming clogged with stones/sand/or similar in flowing waters with a large amount of sediment from bed components. fills.
  • an optimal distance depth of the telescoping mouth element to the sole contact can be made possible in order to enable the effective intervention of the throughflow at the upper water mouth and the optimal outlet at the lower mouth.
  • the siphon tube 3 is individually adapted to the local body of water type, water - dimensioned volume flow.
  • the floating body control can be used to dynamically adjust the water level difference between the inlet and outlet heights in the upper and lower-water mouths.
  • a siphon is a well-known device or device that can be used to empty a liquid from a container over the rim into a lower container.
  • the hydrostatic pressure is used.
  • the liquid is usually sucked in with the mouth.
  • the pressure differences to be transmitted are transmitted by the forces between the molecules of the liquid (cohesion). If the height of the obstacle to be overcome or the length of the excess liquid column continues to increase and thus the pressure difference approaches atmospheric pressure (101,325 Pa), the jack will become unstable; cavitation often occurs due to disturbances in the vessel wall, which quickly leads to the break-off of the liquid column. In the case of water, this results in a maximum height difference of about 10 meters.
  • the fish pass according to the invention consists of a channel or pipe 3 which connects the headwater 1 with the tailwater 2, the channel or pipe 3 having a gradient so that the channel or pipe 3 is flushed with water becomes.
  • the channel or the pipe 3 is sealed and uses the siphon principle, in that there is a water level difference between the inlet 4 from the headwater 1 and the outlet 5 into the tailwater 2 .
  • a new field of application is opened up for the siphon principle when it is used in a fish pass.
  • the flow is kept as low as possible in order to increase the fish throughput and not wash away growing vegetation.
  • the inlet and outlet 4, 5 can be adjusted in such a way that once the system has been filled with water, it usually remains in this state.
  • foundations are advantageously arranged in the area of the inlet and outlet 4, 5, on which the inlet and outlet 4, 5 of the pipe 3 or the channel are supported by means of spacers.
  • These can also be telescopically adjustable, powered by a float.
  • a design is advantageous that provides that a float-controlled slide 12 is arranged in the outlet 5, which allows the channel or the pipe 3 to be filled with water by closing it, so that after the slide 12 is opened, the siphon is started.
  • the slide 12 itself consists of a floating body 13 in the upper and lower water 1, 2, which follows the respective water level.
  • the floating bodies 13 are each connected to a closure body 15 in the channel or pipe 3 via a rod and an axis.
  • a weight 14 on the rod is used to adjust the closure body 15 with the floating body 13.
  • aids which, controlled by a float, reactivate the lifter which has come to a standstill.
  • This includes a water reservoir in a water reservoir - container 9, which is filled by means of a ram pump 10 and is located above the channel or pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Farming Of Fish And Shellfish (AREA)
EP21198892.8A 2021-09-24 2021-09-24 Aide à la remontée piscicole iii Withdrawn EP4155463A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21198892.8A EP4155463A1 (fr) 2021-09-24 2021-09-24 Aide à la remontée piscicole iii

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21198892.8A EP4155463A1 (fr) 2021-09-24 2021-09-24 Aide à la remontée piscicole iii

Publications (1)

Publication Number Publication Date
EP4155463A1 true EP4155463A1 (fr) 2023-03-29

Family

ID=77951557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21198892.8A Withdrawn EP4155463A1 (fr) 2021-09-24 2021-09-24 Aide à la remontée piscicole iii

Country Status (1)

Country Link
EP (1) EP4155463A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038314A (en) 1958-11-07 1962-06-12 Hultman Andrew Norman Spiral fish ladder
US5660499A (en) * 1995-02-15 1997-08-26 Bethune; James N. Two-way fish siphon overpass
DE202005010752U1 (de) 2005-07-08 2005-09-22 Hammerl, Rudolf, Dipl.-Ing. Technische Fischaufstiegshilfe aus einzelnen Trögen zusammengesetzt
WO2005124032A1 (fr) * 2004-06-22 2005-12-29 Witteveen & Bos Raadgevende Ingenieurs B.V. Systeme de guidage de poissons
EP2098640A2 (fr) * 2008-03-05 2009-09-09 Universität Kassel Dispositif de descente d'anguilles sur des bâtiments maritimes
KR20100032640A (ko) * 2008-09-18 2010-03-26 윤미현 어도장치
DE102011100854A1 (de) 2011-05-07 2012-11-29 Günther Hechsel a) Wasserkraftanlage zur Energiegewinnung, b) Fischlift die beide von je einer endlosen Wasserschaufelkette angetrieben werden
DE102017004660B4 (de) 2017-05-11 2019-10-24 Guido Becker Fischaufstiegshilfe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038314A (en) 1958-11-07 1962-06-12 Hultman Andrew Norman Spiral fish ladder
US5660499A (en) * 1995-02-15 1997-08-26 Bethune; James N. Two-way fish siphon overpass
WO2005124032A1 (fr) * 2004-06-22 2005-12-29 Witteveen & Bos Raadgevende Ingenieurs B.V. Systeme de guidage de poissons
DE202005010752U1 (de) 2005-07-08 2005-09-22 Hammerl, Rudolf, Dipl.-Ing. Technische Fischaufstiegshilfe aus einzelnen Trögen zusammengesetzt
EP2098640A2 (fr) * 2008-03-05 2009-09-09 Universität Kassel Dispositif de descente d'anguilles sur des bâtiments maritimes
KR20100032640A (ko) * 2008-09-18 2010-03-26 윤미현 어도장치
DE102011100854A1 (de) 2011-05-07 2012-11-29 Günther Hechsel a) Wasserkraftanlage zur Energiegewinnung, b) Fischlift die beide von je einer endlosen Wasserschaufelkette angetrieben werden
DE102017004660B4 (de) 2017-05-11 2019-10-24 Guido Becker Fischaufstiegshilfe

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