SE527974C2 - Fish ladder for e.g. culvert, comprises vessel with exit at lower point and pipe linking vessel to connecting part at upper point - Google Patents
Fish ladder for e.g. culvert, comprises vessel with exit at lower point and pipe linking vessel to connecting part at upper pointInfo
- Publication number
- SE527974C2 SE527974C2 SE0401833A SE0401833A SE527974C2 SE 527974 C2 SE527974 C2 SE 527974C2 SE 0401833 A SE0401833 A SE 0401833A SE 0401833 A SE0401833 A SE 0401833A SE 527974 C2 SE527974 C2 SE 527974C2
- Authority
- SE
- Sweden
- Prior art keywords
- outlet
- fish
- connecting part
- point
- water
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 241000251468 Actinopterygii Species 0.000 claims abstract description 7
- 230000005012 migration Effects 0.000 claims description 6
- 238000013508 migration Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000009182 swimming Effects 0.000 abstract description 2
- 238000011144 upstream manufacturing Methods 0.000 abstract description 2
- 241000894007 species Species 0.000 description 3
- 101150089644 Rnls gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
- A01K79/02—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery by electrocution
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/60—Ecological corridors or buffer zones
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ladders (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
Description
20 25 30 35 527 974 2 vattenflödet vid den övre punkten och ett utlopp (11) vid den nedre punkten (2). 20 25 30 35 527 974 2 the water flow at the upper point and an outlet (11) at the lower point (2).
Vattenflödets hastighet i anordningen varierar beroende på arean på tvärsnittet där vattnet passerar. Anordningen anpassas fördelaktligen så att vattenflödets hastighet i anordningen är högst vid utloppet (11).The speed of water fl the fate of the device varies depending on the area of the cross section where the water passes. The device is advantageously adapted so that the velocity of water in the device is highest at the outlet (11).
Fisk som simmar uppför att vattendrag klarar att simma mot en relativt hög flödeshastighet så länge det gäller en kortare sträcka. Under längre sträckor klarar fisken betydligt lägre hastighet. Uppfinningen utnyttjar detta faktum genom att låta den högsta hastigheten vara vid utloppet, vilket är där fisken simmar in i anordningen. Utloppet motsvarar en kort sträcka vilket gör att fisken klarar den högre hastigheten. När fisken kommit genom utloppet ökar tvärsnittsarean och hastigheten på vattenflödet minskar. Eftersom utloppet har den minsta tvärsnittsarean i anordningen där vattnet passerar är vattenflödets hastighet högst och dà proportionellt mot tvärsnittsarean på utloppet. Hastigheten på vattenflödet år även beroende av fallhöjden mellan den övre och undre punkten.Fish that swim upstream that watercourses are able to swim at a relatively high speed speed as long as it is a shorter distance. For longer distances, the light can handle significantly lower speeds. The invention takes advantage of this fact by leaving the highest speed at the outlet, which is where the light swims into the device. The outlet corresponds to a short distance, which means that the light can handle the higher speed. When the light has come through the outlet, the cross-sectional area increases and the velocity of the water fl decreases. Since the outlet has the smallest cross-sectional area in the device where the water passes, the velocity of water fl is highest and then proportional to the cross-sectional area of the outlet. The velocity of water fl fate is also dependent on the fall height between the upper and lower point.
Anordningen innefattar en behållare (10) anordnad i vattendraget (2). Behållaren (10) har ett utlopp (11) där fisken simmar in. Utloppet är placerat under vattennivån i vattendraget (2). Behållaren är även ansluten till ett rör (13) anordnat mellan behållaren (10) och en anslutningsdel (14) som ansluter till vägtrumman (3).The device comprises a container (10) arranged in the watercourse (2). The container (10) has an outlet (11) where the light swims in. The outlet is located below the water level in the watercourse (2). The container is also connected to a pipe (13) arranged between the container (10) and a connecting part (14) which connects to the road drum (3).
Anslutningsdelen (14) har en krage (15) som träs på röret (13) och en kopplingsanordning (16) mot vägtrumman (3). Detta för att anslutningsdelen (14) skall vara löstagbar. På hösten efter fiskvandringen är avslutad tas anslutningsdelen bort och vattnet kan forsa fritt genom vägtrumman under den kommande vårfloden.The connecting part (14) has a collar (15) which is threaded on the pipe (13) and a coupling device (16) against the road drum (3). This is so that the connecting part (14) can be detachable. In the autumn after the hike is completed, the connection part is removed and the water can flow freely through the road drum during the coming spring flood.
Efter várfloden monteras anslutningsdelen tillbaka lagom till fiskvandringssäsongens start.After the spring flood, the connecting part is mounted back just in time for the start of the fish migration season.
Anslutningsdelen (14) innefattar lnloppet (12) samt delar (18,19) som dämmer upp vattnet i vägtrumman (3). lnloppet (12) har lämpligtvis en area som motsvarar rörets area. Delarna (18,19) ser till att lnloppet är täckt med vatten och anordningen således fylld med vatten. Om vattenflödet skulle bli så kraftig att vattnet inte hinner rinna undan in i lnloppet (12) rinner överskottet över kanten (20) och fortsätter utanför anordningen ner till vattendraget (2).The connection part (14) comprises the inlet (12) and parts (18, 19) which dam up the water in the road drum (3). The inlet (12) suitably has an area corresponding to the area of the pipe. The parts (18,19) ensure that the inlet is covered with water and the device is thus filled with water. If the water flow should become so strong that the water does not have time to drain away into the inlet (12), the excess flows over the edge (20) and continues outside the device down to the watercourse (2).
Anordningen (1) fungerar så att fisken (4) simmar in genom utloppet (11) in till behållaren (10). När fisken simmat genom behållaren (10) startar fisken uppför 00 0 00 0 00 0 00 0000 0000 00 0 0 0 0 I I 0 0 0 0 0000 0 0 0 0 0 0 0 0 0 00 000 00 0 00 10 15 20 25 30 35 527 974 3 genom röret (13). Rörets lutning och diameter samt utloppet (11) är anpassat så att vattenflödet inte är större än vad fisken klarar. Olika fiskarter klarar olika strömt vatten så anordningen anpassas lämpligen efter den/de arter som vandrar i vattendraget. En lämplig diameter på röret ligger oftast mellan 20-40 cm vilket med en lämplig lutning på röret ge en flödeshastighet 1-2 rnls.The device (1) functions so that the light (4) swims in through the outlet (11) into the container (10). When the light has swum through the container (10), the light starts up 00 0 00 0 00 0 00 0000 0000 00 0 0 0 0 II 0 0 0 0 0000 0 0 0 0 0 0 0 0 0 00 000 00 0 00 10 15 20 25 30 527 974 3 through the tube (13). The slope and diameter of the pipe and the outlet (11) are adapted so that the water fate is not greater than what the light can handle. Different species can handle different streams of water, so the device is suitably adapted to the species / species that migrate in the watercourse. A suitable diameter of the pipe is usually between 20-40 cm, which with a suitable inclination of the pipe give a fatal speed of 1-2 rnls.
Behållaren (10) har även ett lock (17) för att underlätta rengöring och rensning av behållaren. Lämpligtvis anordnas behållaren (10) och röret permanent vid vattendraget och bara anslutningsdelen (14) monteras och demonteras. Men vid mindre vattendrag eller tillfälliga nivåskillnader kan hela anordningen (1) vara mobil.The container (10) also has a lid (17) to facilitate cleaning and cleaning of the container. Conveniently, the container (10) and the pipe are arranged permanently by the watercourse and only the connecting part (14) is mounted and disassembled. However, in the event of minor watercourses or temporary level differences, the entire device (1) can be mobile.
En anordning enligt uppfinningen skulle exempelvis kunna dimensioneras för en maximal flödeshastighet av 4 mls, en hastighet som många vandrande fiskar klarar under en kortare sträcka. Med en nivåskillnad på ca 70 cm, ett rör med 30 cm diameter skulle utloppet lämpligen vara ett hål på ca 15 cm i diameter för att hastigheten skulle vara 4 mls.A device according to the invention could, for example, be dimensioned for a maximum fatal speed of 4 mls, a speed that many hikers can handle for a shorter distance. With a level difference of about 70 cm, a pipe with a diameter of 30 cm would suitably be a hole of about 15 cm in diameter for the speed to be 4 mls.
Uppfinningen kan i en annan utföringsform även kompletteras med en lucka vid utloppet (11). Detta tillsammans med att tvärsnittsarean på inloppet (12) görs mindre än utloppet (11) gör att vattenflödets hastighet är störst vid inloppet (12). Fisken har inga problem att simma in i utloppet (11) där en sensor känner av fisken och stänger luckan och hindrar vattnet från att lämna behållaren; Vattenflödet genom inloppet (12) fortsätter och fyller hela anordningen med vatten så fisken kan simma upp till vägtrumman. När fisken lämnat inloppet (12) känner en sensor av detta och öppnar luckan vid utloppet (11). Med denna lösning kan fisken klara relativt höga nivåskillnader.In another embodiment, the invention can also be supplemented with a hatch at the outlet (11). This, together with the fact that the cross-sectional area of the inlet (12) is made smaller than the outlet (11), means that the velocity of the water fl is greatest at the inlet (12). The fish have no problem swimming into the outlet (11) where a sensor senses the light and closes the door and prevents the water from leaving the container; The water flow through the inlet (12) continues and fills the entire device with water so that the light can swim up to the road drum. When the light has left the inlet (12), a sensor detects this and opens the door at the outlet (11). With this solution, the light can cope with relatively high level differences.
Vid stora nivåskillnader kan det behövas anordnas en eller flera dammar mellan två eller flera anördningar enligt uppfinningen. Anordningen gör det möjlig att på ett billig, utan behov av elektricitet och utrymmessnålt sätt göra det möjiigt för vandrande tisk att klara nivåskillnader. Detta genom att anordningen skapar en vattenfylld väg med för fisken hanterbar flödeshastighet mellan nivåema.In the event of large level differences, it may be necessary to arrange one or more dams between two or two of your devices according to the invention. The device makes it possible to manage level differences in a cheap, without the need for electricity and space-saving way. This is because the device creates a water-filled road with a seemingly manageable speed of fate between the levels.
Anordningen är visad mellan vattendrag och vägtrumma men den kan även användas mellan andra typer av nivåskillnader, som t ex fördämningar, kraftverk, dammar och tillfälliga hinder vid byggarbetsplatser.The device is shown between watercourses and road drums, but it can also be used between other types of level differences, such as dams, power plants, dams and temporary obstacles at construction sites.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0401833A SE527974C2 (en) | 2004-07-09 | 2004-07-09 | Fish ladder for e.g. culvert, comprises vessel with exit at lower point and pipe linking vessel to connecting part at upper point |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0401833A SE527974C2 (en) | 2004-07-09 | 2004-07-09 | Fish ladder for e.g. culvert, comprises vessel with exit at lower point and pipe linking vessel to connecting part at upper point |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0401833D0 SE0401833D0 (en) | 2004-07-09 |
SE0401833L SE0401833L (en) | 2006-01-10 |
SE527974C2 true SE527974C2 (en) | 2006-07-25 |
Family
ID=32823035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0401833A SE527974C2 (en) | 2004-07-09 | 2004-07-09 | Fish ladder for e.g. culvert, comprises vessel with exit at lower point and pipe linking vessel to connecting part at upper point |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE527974C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO337512B1 (en) * | 2014-01-21 | 2016-05-02 | Sea Soul As | Methods and facilities for catching fish |
-
2004
- 2004-07-09 SE SE0401833A patent/SE527974C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO337512B1 (en) * | 2014-01-21 | 2016-05-02 | Sea Soul As | Methods and facilities for catching fish |
US10111413B2 (en) | 2014-01-21 | 2018-10-30 | Sea Soul As | Method and device for taking up fish from a body of water |
Also Published As
Publication number | Publication date |
---|---|
SE0401833L (en) | 2006-01-10 |
SE0401833D0 (en) | 2004-07-09 |
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Legal Events
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NUG | Patent has lapsed |