SE529509C2 - Reducing friction between hull of ship and water around it, comprises removing paint to form ribs - Google Patents

Reducing friction between hull of ship and water around it, comprises removing paint to form ribs

Info

Publication number
SE529509C2
SE529509C2 SE0602536A SE0602536A SE529509C2 SE 529509 C2 SE529509 C2 SE 529509C2 SE 0602536 A SE0602536 A SE 0602536A SE 0602536 A SE0602536 A SE 0602536A SE 529509 C2 SE529509 C2 SE 529509C2
Authority
SE
Sweden
Prior art keywords
ship
ribs
hull
height
gutters
Prior art date
Application number
SE0602536A
Other languages
Swedish (sv)
Other versions
SE0602536L (en
Inventor
Ragnar Winberg
Original Assignee
Ragnar Winberg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ragnar Winberg filed Critical Ragnar Winberg
Priority to SE0602536A priority Critical patent/SE0602536L/en
Publication of SE529509C2 publication Critical patent/SE529509C2/en
Publication of SE0602536L publication Critical patent/SE0602536L/en
Priority to PCT/SE2007/001108 priority patent/WO2008066466A1/en
Priority to EP07852110A priority patent/EP2094560A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/36—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using mechanical means
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Abstract

Paint material is removed from the surface of the ship in order to form tightly-packed straight ribs which have a height of less than 0.3 mm relative to the grooves in between them.

Description

529 509 biofouling och fastsättande av folien är dyrbart och besvärligt särskilt på buktiga ytor. 529 509 biofouling and fixing the foil is expensive and cumbersome especially on curved surfaces.

Föreliggande uppfinning avser ett förfarande för att direkt på ett fartygsskrovs yta åstadkomma en ribbad ytstuktur.The present invention relates to a method for producing a ribbed surface structure directly on the surface of a ship's hull.

Uppfinningen har de kännetecken som framgår av patentkraven och skall närmare förklaras med hjälp av figurer som i princip visar utföringsexempel.The invention has the features which appear from the claims and will be explained in more detail with the aid of figures which in principle show exemplary embodiments.

Figur 1 visar ett verktyg på en fartygssida sett uppifrån.Figure 1 shows a tool on a ship's side seen from above.

Figur 2 visar verktyget enligt figur 1 sett mot fartygssidan.Figure 2 shows the tool according to figure 1 seen towards the ship's side.

Med 1 betecknas ett fartygsskrovs utsida och med 2 och 3 valsar på vilka ett ändlöst band 4 är monterat. En tryckplatta 5 trycker bandet mot skrovytan. Med 6 betecknas rader av korn fastsatta på bandet. Raderna kan vara ordnade i kolumner och i varje kolumn kan avståndet mellan två rader t.ex. vara en ' millimeter. Avståndet mellan den översta raden i en kolumn och översta raden i en bredvidliggande kolumn kan vara t.ex. 0,1 inillimeter. Om varje kolumn omfattar 400 rader och det finns 10 kolumner på bandet kan en yta med bredden 400 millimeter behandlas med 4000 rännor. Beroende av hastigheten på bandet och verktygets förflyttning kan en komrad inkomma i samma ränna ett flertal gånger. Även om kornen inte är ordnade i rader kan de ändå åstadkomma rännor skilda av ribbor, dock av mera oregelbundet utseende och längd. Det väsentliga är att åstadkomma en ytstruktur av mycket små ribbor och rännor.1 denotes the outside of a ship's hull and 2 and 3 rollers on which an endless belt 4 is mounted. A pressure plate 5 presses the belt against the hull surface. 6 denotes rows of grains attached to the belt. The rows can be arranged in columns and in each column the distance between two rows can be e.g. be a 'millimeter. The distance between the top row of a column and the top row of an adjacent column can be e.g. 0.1 inillimeter. If each column comprises 400 rows and there are 10 columns on the belt, a surface with a width of 400 millimeters can be treated with 4000 gutters. Depending on the speed of the belt and the movement of the tool, a comrade can enter the same groove several times. Even if the grains are not arranged in rows, they can still produce grooves separated by ribs, but of a more irregular appearance and length. The essential thing is to provide a surface structure of very small ribs and gutters.

Ett verktyg enligt ovanstående kan t.ex. vara fastsatt i en anordning enligt det svenska patentet 509 857 eller i en vagn av tidigare känt slag där vagnen hålls mot skrovet med hjälp av band försedda med magneter och där vagnen är fjärrstyrd.A tool according to the above can e.g. be fixed in a device according to the Swedish patent 509 857 or in a carriage of a previously known type where the carriage is held against the hull by means of straps provided with magnets and where the carriage is remotely controlled.

Förfarandet kan ske på nybyggda fartyg då de är i docka. Det kan vara lämpligt att göra skrovytan jämn genom att slipa av svetsfogar mellan fartygsplåtarna.The procedure can be done on newly built ships when they are in dock. It may be appropriate to make the hull surface smooth by grinding welds between the ship's plates.

Den ytfärg som pålägges bör på läggas så att den fárdigmålad har en relativt stor tjocklek. Färgen bör som nämnts innehålla beväxtningshäminande medel. Aven på äldre fartyg som dockar kan det vara lämpligt att förse med ett tjockt lager av ny färg.The surface paint that is applied should be applied so that the pre-painted has a relatively large thickness. The paint should, as mentioned, contain growth inhibitors. Even on older ships that dock, it may be appropriate to provide a thick layer of new paint.

På fartyg som ligger i' vatten kan förfarandet ske både ovanför och under vattenytan. Om det finns någon beväxtning bör denna tagas bort före förfarandet. Detta kan också ske om ett rengöringsorgan fastsättes i en 529 509 anordning enligt nämnda patent så att detta organ arbetar före det verktyg som åstadkommer rännoma. Om ribborna blivit nerslitna av friktion kan genom förfarandet fräscha rännor skapas eventuellt efter det att ytan gjorts slät. Genom att färgskiktet är tjockt kan flera bearbetningar ske innan det är dags för omdockning. Det kan också vara så att det beväxtningshämmande ämnet efterhand avges från färgskiktets yta. Då kan ett borttagande av mera overksamt ytskikt göra att ett mera verksamt ytskikt framkommer.On ships lying in water, the procedure can take place both above and below the water surface. If there is any vegetation, it should be removed before the procedure. This can also happen if a cleaning member is fixed in a 529 509 device according to said patent so that this member works before the tool which provides the gutters. If the ribs have been worn down by friction, fresh gutters can be created through the procedure, possibly after the surface has been made smooth. Because the paint layer is thick, several processing can take place before it is time for docking. It may also be the case that the antifouling substance is gradually released from the surface of the paint layer. Then a removal of a more ineffective surface layer can result in a more effective surface layer.

Det kan vara möjligt att förutom fartygets sidor även bearbeta dess flatbotten.In addition to the sides of the ship, it may also be possible to process its bottom.

Det kan vara svårt att bearbeta ytor längst fram och längst bak på ett fartyg. Det väsentliga är att en stor del av fartygets yta under vatten får den friktionsminskande ytstrukturen. Även om friktionsminskningen uttryckt i procent eller promille är liten kan det ändå ge en stor besparing av bränsle för ett fartyg som är i drift mer än halva året.It can be difficult to machine surfaces at the front and rear of a ship. The important thing is that a large part of the ship's surface under water has the friction-reducing surface structure. Even if the reduction in friction, expressed as a percentage or per mille, is small, it can still result in a large saving of fuel for a ship that has been in operation for more than half a year.

Claims (1)

1. 9D 529 509 Krav Förfarande för att minska friktionen mellan ett fartygsskrov och dess omgivande vatten, kännetecknat av, att från fartygets ytfárg på mekanisk väg bortfóra material så att efter bortförandet ytstrukturen uppvisar tätt intill varandra belägna med fartygets längdriktning parallella ribbor, vilka har en höjd över de mellan ribborna belägna rännorna av mindre än 0,3 millimeter. Förfarande enligt krav 1, kännetecknat av, att ribbomas höjd över rännorna är mindre än 0,2 millimeter. Förfarande enligt krav 2, kännetecknat av, att ribbomas höjd över rännorna är mindre än 0,1 millimeter. Förfarande enligt krav 1, kännetecknat av, att höjden av ribborna i huvudsak är lika med avstånden mellan dem. Förfarande enligt krav 1, kännetecknat av, att rännorna åstadkommes av korn fastsatta på ett drivet ändlöst band som utefter hela sin bredd halls tryckt mot skrovytan. Förfarande enligt krav 5, kännetecknat av, att kornen är fastsatta i parallella rader på bandet. i F örfarande enligt krav 5, kännetecknat av, att det ändlösa bandet är monterat på en anordning, vilken kan föras längs fartyget i med dess längdrikning parallella, intill varandra belägna skikt. Ytskiktsstruktur på fartyg åstadkommen genom förfarande enligt något tidigare krav.1. 9D 529 509 Requirements A method for reducing the friction between a ship's hull and its surrounding water, characterized in that material is mechanically removed from the ship's surface paint so that after removal the surface structure has adjacent ribs parallel to the ship's longitudinal direction, which have a height above the gutters located between the ribs of less than 0.3 millimeters. Method according to claim 1, characterized in that the height of the ribs above the gutters is less than 0.2 millimeters. Method according to claim 2, characterized in that the height of the ribs above the gutters is less than 0.1 millimeters. Method according to claim 1, characterized in that the height of the ribs is substantially equal to the distances between them. Method according to claim 1, characterized in that the grooves are provided by grains attached to a driven endless belt which, along its entire width, is held pressed against the hull surface. Method according to claim 5, characterized in that the grains are fixed in parallel rows on the belt. A method according to claim 5, characterized in that the endless belt is mounted on a device which can be passed along the vessel in layers parallel to each other with its longitudinal juxtaposition. Surface layer structure on ships achieved by procedure according to any previous requirement.
SE0602536A 2006-11-29 2006-11-29 A method of reducing friction between a ship's hull and its surrounding water SE0602536L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0602536A SE0602536L (en) 2006-11-29 2006-11-29 A method of reducing friction between a ship's hull and its surrounding water
PCT/SE2007/001108 WO2008066466A1 (en) 2006-11-29 2007-12-14 Procedure to reduce the friction between a hull and the surrounding water by creating ribs in the hull paint
EP07852110A EP2094560A4 (en) 2006-11-29 2007-12-14 Procedure to reduce the friction between a hull and the surrounding water by creating ribs in the hull paint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0602536A SE0602536L (en) 2006-11-29 2006-11-29 A method of reducing friction between a ship's hull and its surrounding water

Publications (2)

Publication Number Publication Date
SE529509C2 true SE529509C2 (en) 2007-09-04
SE0602536L SE0602536L (en) 2007-09-04

Family

ID=38441671

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0602536A SE0602536L (en) 2006-11-29 2006-11-29 A method of reducing friction between a ship's hull and its surrounding water

Country Status (3)

Country Link
EP (1) EP2094560A4 (en)
SE (1) SE0602536L (en)
WO (1) WO2008066466A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014475A1 (en) * 2010-04-09 2011-10-13 Gerhard Dorandt Hydro-Hai system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386955A (en) * 1986-05-22 1995-02-07 Rolls-Royce Plc Control of fluid flow
AT393458B (en) * 1988-04-27 1991-10-25 Isosport Verbundbauteile METHOD FOR PRODUCING RUNNING SURFACES FOR SKIS, RUNNING COMPONENTS FOR ALPINE SKI AND SOWIESKI WITH A RUNNING SURFACE
GB8812494D0 (en) * 1988-05-26 1988-06-29 British Maritime Technology Lt Improvements in/relating to reduction of drag
BE1003326A6 (en) * 1990-01-15 1992-02-25 Mathews Jordan William Procedure for reducing the resistance due to friction of a moving object andan object with the friction reduced in this way
JP2890340B2 (en) * 1992-09-29 1999-05-10 三井造船株式会社 Method of forming air film on submerged surface of structure having submerged part and film structure on submerged surface
FR2751049B1 (en) * 1996-07-15 1998-09-18 Inst Francais Du Petrole MODIFIED SURFACE TO REDUCE THE TURBULENCE OF A FLUID AND METHOD OF TRANSPORTING
DE19631537C2 (en) * 1996-07-23 1999-02-04 Okoe Charles Dipl Ing Fh Boundary layer profile for liquids and / or gases
DE19725251C2 (en) * 1997-06-14 2000-07-13 Voith Hydro Gmbh & Co Kg Method for producing a component for a hydraulic fluid machine, and a component produced thereafter
SE509857C2 (en) 1997-10-22 1999-03-15 Ragnar Winberg Device for supporting surface treatment unit on ship
US7070850B2 (en) * 2002-12-31 2006-07-04 3M Innovative Properties Company Drag reduction article and method of use
BE1016624A3 (en) * 2005-06-02 2007-03-06 Rompay Boudewijn Gabriel Van Underwater surface for e.g. boat hull or propeller, includes macroscopic irregularities for improving hydrodynamics

Also Published As

Publication number Publication date
WO2008066466A1 (en) 2008-06-05
EP2094560A1 (en) 2009-09-02
EP2094560A4 (en) 2012-10-10
SE0602536L (en) 2007-09-04

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