DK9500300U3

DK9500300U3 - Pontoon Carried Hydroelectric Plant

Info

Publication number: DK9500300U3
Application number: DK9500300U
Authority: DK
Inventors: Bent Pagh Sperling
Original assignee: Bent Pagh Sperling
Priority date: 1995-08-09
Filing date: 1995-08-09
Publication date: 1995-10-13

Description

DK 95 00300 U3 side 1.DK 95 00300 U3 page 1.

Pontonbåret hydroelektrisk anlæg.Pontoon-borne hydroelectric plant.

Denne konstruktion er et anlæg til fremstilling af elektrisk kraft, beregnet til stationering i farvande med strømmende vand.This construction is an electric power generation plant intended for stationing in flowing water.

Konstruktionen består af et skovlhjul monteret på en sådan måde i en pontonkonstruktion, at det befinder sig så langt nede i vandet, at størst mulig kraft kan opfanges fra det strømmende vand under de givne forhold, * samtidigt med at et trykluftkammer der omslutter ca. 9o % af skovlhjulet, sikrer maximal udnyttelse af energien.The structure consists of a impeller mounted in such a manner as to be in a pontoon structure that it is so far down in the water that maximum power can be captured from the flowing water under the given conditions, * while a compressed air chamber enclosing approx. 9o% of the impeller, ensures maximum utilization of energy.

Konstruktionen kan alternativt være en pontonkonstrukton, hvori der er monteret en turbine, der ligeledes er monteret i og under et trykluftkammer der er konstrueret således at vandstanden i kammeret kan sænkes, når der skal foretages eftersyn eller reparation.Alternatively, the structure may be a pontoon structure in which a turbine is mounted, which is also mounted in and under a compressed air chamber which is designed so that the water level in the chamber can be lowered for inspection or repair.

Pontonen indeholder desuden et maskinhus med elgenerator og andet apparatur til omdannelse af energien til elektricitet, så den pr. kabler til land kan leveres til elnettet.The pontoon also contains a machine house with electric generator and other apparatus for converting the energy into electricity, so onshore cables can be supplied to the mains.

Vandmøllekonstruktioner er den omtrent ældst kendte teknik når det gælder anvendel.se af kraft fra strømmende vand, hvad enten den er udnyttet med konstruktioner direkte over strømmende vand eller ved opdæmmede åløb, og senest ved tidevandsdæmninger. Alle mulige udformninger fra hjul til propeller og turbiner har været og bliver udnyttet til at udnytte vandenergien.Watermill structures are the oldest known technique when it comes to using power from flowing water, whether it is utilized with structures directly over flowing water or at dammed streams, and most recently at tidal dams. All possible designs from wheels to propellers and turbines have been and are being utilized to harness the water energy.

Der har også været udført konstruktioner af et antal sammenkoblede flydende propeller eller turbiner, anbragt i åbent farvand med skiftende strømretninger. Fortøjningen var udformet således at "batteriet" af propeller kunne svaje med strømmen, og dermed udnyttet den optimalt. Udbyttet af energi var lavt i forhold til investeringen, og problemerne med søkablet i stadig bevægelsei ikke umiddlbart nemme at løse.There have also been designs of a number of interconnected floating propellers or turbines placed in open water with alternating current directions. The mooring was designed so that the "battery" of propeller could sway with the current, and thus utilized it optimally. The energy yield was low compared to the investment, and the problems with the continuously moving submarine cable are not immediately easy to solve.

DK 95 00300 U3 side 2.DK 95 00300 U3 page 2.

De tekniske problemer der skal løses ved anbringelse og udnyttelse af vandmøllehjul eller turbiner af tilstrækkeligt store dimensioner i åbent farvand med kraftige og vekslende strømforhold er mange. Først og fremmest skal den aktive del af skovlhjulet eller turbinen være så langt under overfladen at vandstrømningen kan udnyttes optimalt, ligesom der af mijømæssige grunde og af hensyn til vejrforholdene skal være mindst muligt af anlægget synligt over overfladen, - men et skovhjul der er helt eller 90% nedsænket i strømmende vand har ingen virkning, idet skovlbladene modvirker hinanden. Ligeledes vil skovlhjul, turbiner eller propeller forankret til havs ved et eftersyn eller en reparation nødvendigvis demonteres og bugseres til land, hvilket vil være både praktiskt og økonomiskt uhensigtsmæssigt.The technical problems to be solved by the placement and utilization of watermill wheels or turbines of sufficiently large dimensions in open water with strong and changing power conditions are numerous. First and foremost, the active part of the impeller or turbine must be so far below the surface that the water flow can be utilized optimally, just as, for environmental reasons and weather conditions, the plant should be visible above the surface as small as possible - but an impeller that is completely or 90% immersed in flowing water has no effect as the blade blades counteract each other. Likewise, impellers, turbines or propellers anchored to the sea by an overhaul or repair will necessarily be dismantled and towed to land, which will be both practical and economically inappropriate.

Med den nye konstruktion er der opnået en løsning på disse problemer.With the new construction, a solution to these problems has been achieved.

Det nye ved konstruktionen er at eet eller flere skovlhjul, der er anbragt mellem siderne i en pontonkonstruktion, for ca. 90% vedkommende skal dreje rundt i et trykkammer, hvor et overtryk sørger for, at kun den nederste del af de til enhver tid aktive skovlblade er nede i det strømmende van, således at der i lighed med et skovlhjul anbragt ved en mølledam, ikke tabes kraft til at løfte eller flytte "bagvandet".What is new about the construction is that one or more paddle wheels, placed between the sides of a pontoon structure, for approx. 90% of them must rotate in a pressure chamber where an overpressure ensures that only the lower part of the vanes at all times are in the flowing van, so that, like a impeller placed at a mill pond, no loss is lost. force to lift or move the "backwater".

Alternativt er en turbiner eller propelleranbragt i et trykkammer i en pontonkonstruktion. I trykkammeret kan vandstanden hæves og sænkes, således at turbiner / propeller er under vandoverfladen når de er aktive, men over den indvendige vandoverflade i trykkammeret ved eftersyn eller reparation.Alternatively, a turbine or propeller is provided in a pressure chamber in a pontoon structure. In the pressure chamber, the water level can be raised and lowered so that turbines / propellers are below the water surface when they are active, but above the internal water surface of the pressure chamber during inspection or repair.

Pontonens vægt og trimtanke sørger for balance og kompensation for opdriften fra trykkammeret, og konstruktionen kan forankres i strømretningen med fire ankre, og skovlhjul, turbiner eller propeller vil producere kraft uafhængigt af strømmens retning og alle eftersyn og reparationer af de dele af kraftværket der under driften er under vand kan foretages på stedet, og kun mellem en halv- og een meter behøver at være synlig over havovefladen.The weight and trim tanks of the pontoon provide balance and compensation for the buoyancy of the pressure chamber, and the design can be anchored in the four-way flow direction, and impellers, turbines or propellers will produce power independently of the flow direction and all overhaul and repairs of the parts of the power plant there during operation. can be made underwater on site and only between one and a half meters need to be visible above sea level.

Claims

1. Pontoon-borne hydroelectric power plant, in which flowing water drives one or more paddle wheels mounted in the pontoon structure so that the wheel hubs are below the surface level of the flowing water, which is new in that the part of the paddle wheels not to be affected by the flowing water is surrounded by an air-filled pressure chamber where a pressure regulated according to the conditions controls the water surface of the pressure chamber.

2. Pontoon-borne hydroelectric power plant, where flowing water drives a turbine or propeller mounted in the pontoon structure such that the turbine or propeller is under a pressure chamber below the surface level of the flowing water, which is new in that the water surface of the pressure chamber can be lowered so that inspection and repair can take place. without moving or dismantling the power plant.