NL1029964C1 - Barnacle growth prevention device for ship hull surfaces, comprises electrical circuit with means for making barnacles resonate - Google Patents
Barnacle growth prevention device for ship hull surfaces, comprises electrical circuit with means for making barnacles resonate Download PDFInfo
- Publication number
- NL1029964C1 NL1029964C1 NL1029964A NL1029964A NL1029964C1 NL 1029964 C1 NL1029964 C1 NL 1029964C1 NL 1029964 A NL1029964 A NL 1029964A NL 1029964 A NL1029964 A NL 1029964A NL 1029964 C1 NL1029964 C1 NL 1029964C1
- Authority
- NL
- Netherlands
- Prior art keywords
- organisms
- electrical circuit
- making
- barnacles
- resonate
- Prior art date
Links
- 241000238586 Cirripedia Species 0.000 title abstract description 7
- 230000002265 prevention Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000002401 inhibitory effect Effects 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 2
- 230000005672 electromagnetic field Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000005749 Copper compound Substances 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000237536 Mytilus edulis Species 0.000 description 1
- 241000238585 Thoracica Species 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical compound CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/24—Scaring or repelling devices, e.g. bird-scaring apparatus using electric or magnetic effects, e.g. electric shocks, magnetic fields or microwaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/04—Preventing hull fouling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Birds (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Catching Or Destruction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
» *»*
INRICHTING EN WERKWIJZE VOOR HET REMMEN VAN DE AANGROEI VAN ZEEPOKKEN EN ANDERE ORGANISMENDEVICE AND METHOD FOR INHIBITING THE FATTURE OF SOAP PICKS AND OTHER ORGANISMS
55
De onderhavige uitvinding heeft betrekking op een inrichting voor het remmen van de aangroei van organisme, zoals zeepokken en mossels, op een onder water gelegen oppervlak van een lichaam. De uitvinding heeft met name 10 betrekking op het remmen van de aangroei van zeepokken op de scheepshuid van zeeschepen.The present invention relates to a device for inhibiting the growth of organism, such as barnacles and mussels, on an underwater surface of a body. The invention relates in particular to inhibiting the growth of barnacles on the ship's hull of sea-going vessels.
Larven van zeepokken zwemmen vrij rond in zoutwater. Wanneer de zeepokken in een bepaald groeistadium zijn zetten zij zich vast aan een harde ondergrond, zoals aan de romp van 15 schepen.Barnacle larvae swim freely in saltwater. When the barnacles are at a certain stage of growth, they attach themselves to a hard surface, such as the hull of 15 ships.
De onderwaterlijn van zeeschepen dienen regelmatig schoongemaakt te worden omdat de aangroei van zeepokken de vaart te zeer belemmeren. Bekend is het gebruik van aangroeiwerende verf. Deze bevat echter uiterst giftige 20 tributyltin of koperverbindingen.The underwater line of sea-going vessels must be cleaned regularly because the growth of barnacles is too much of a hindrance. The use of antifouling paint is known. However, it contains extremely toxic tributyl tin or copper compounds.
De uitvinding heeft ten doel een inrichting en werkwijze te verschaffen waarmee op milieubewuste wijze een remming van de aangroei van organismen op ondergedompelde oppervlakken kan worden bewerkstelligd.The invention has for its object to provide a device and method with which in an environmentally conscious manner an inhibition of the growth of organisms on submerged surfaces can be effected.
25 Daartoe is volgens de uitvinding de inrichting gekenmerkt door een stroomkring en in de stroomkring opgenomen resonantiemiddelen voor het in resonantie brengen van de organismen. De organismen worden in gedwongen trilling gebracht waarbij de aanstootfrequentie gelijk of nagenoeg 30 gelijk is aan de eigenfrequentie. Dit resulteert in grote uitwijkingen, en derhalve in het loskomen of breken juist voor of na aangroei van de organismen.To that end, according to the invention, the device is characterized by a circuit and resonant means included in the circuit for bringing the organisms into resonance. The organisms are brought into forced vibration, the excitation frequency being equal to or substantially equal to the natural frequency. This results in large deviations, and therefore in the loosening or breaking just before or after fouling of the organisms.
De resonantiemiddelen omvatten bij voorkeur 31028964- t -4 2 elektrische middelen voor het regelen van de frequentie van een elektrisch of elektromagnetisch veld.The resonant means preferably comprise 31028964-t 2 electrical means for controlling the frequency of an electric or electromagnetic field.
Op voordelige wijze kan het oppervlak van het te behandelen lichaam worden gebruikt als geleider voor het 5 overbrengen van de gewenste trilling op de organismen. Daartoe maakt het oppervlak van het lichaam onderdeel uit van de stroomkring.The surface of the body to be treated can advantageously be used as a conductor for transmitting the desired vibration to the organisms. To that end, the surface of the body forms part of the electrical circuit.
In een voordelige uitvoeringsvorm omvat de stroomkring een anode en kathode ter verkrijging van een 10 elektrolytisch proces. Hetzelfde systeem kan dan tevens ingezet worden als anti-fouling middel voor het voorkomen van de aangroei van met name algen, zoals nader beschreven in WO 2004/039664. De inhoud van deze aanvrage is door expliciete verwijzing hierin opgenomen.In an advantageous embodiment, the electric circuit comprises an anode and cathode for obtaining an electrolytic process. The same system can then also be used as an anti-fouling agent for preventing the growth of, in particular, algae, as further described in WO 2004/039664. The content of this application is incorporated herein by explicit reference.
15 Indien noch de anode noch de kathode is verbonden met het ondergedompelde oppervlak van het lichaam vindt de inrichting een brede toepassing, en is niet alleen beperkt tot schepen en andere lichamen voorzien van oppervlakken die elektrisch geleidend zijn. Het water dat het lichaam omringt 20 dient in dat geval als geleider.If neither the anode nor the cathode is connected to the submerged surface of the body, the device finds a wide application, and is not limited only to ships and other bodies provided with surfaces that are electrically conductive. The water that surrounds the body serves in that case as a conductor.
De uitvinding betreft een werkwijze voor het remmen van de aangroei van organismen op een onder water gelegen oppervlak van een lichaam, zoals een vaartuig, waarbij de organismen in trilling wordt gebracht waarvan de 25 aanstootfrequentie hoofdzakelijk gelijk is aan de eigenfrequentie.The invention relates to a method for inhibiting the growth of organisms on a submerged surface of a body, such as a vessel, wherein the organisms are made to vibrate whose striking frequency is substantially equal to the natural frequency.
De stroomkring omvat bij voorkeur een anode en een kathode. Het oppervlak van het ondergedompelde lichaam kan als anode of kathode dienst doen, zodat het oppervlak als geleider 30 dinst doet. Het het ondergedompelde lichaam omringende water kan ook als geleider gebruikt worden. In dat geval worden de anode en/of kathode geisleerd met het te behandelen oppervlak verbonden.The circuit preferably comprises an anode and a cathode. The surface of the submerged body can serve as an anode or cathode, so that the surface serves as a conductor. The water surrounding the submerged body can also be used as a conductor. In that case the anode and / or cathode are insulated and connected to the surface to be treated.
1029964- • * 31029964- * * 3
De resonantie wordt bij voorkeur elektrisch, en niet ultrasoon, opgewekt zodat met lagere vermogens gewerkt kan worden.The resonance is preferably generated electrically, and not ultrasonically, so that lower power can be used.
Door ook het omringende water (deels) in de 5 stroomkring op te nemen worden de larven en andere organismen in de omgeving van het te behandelen oppervlak meegenomen. Hierdoor is een continue behandeling van het oppervlak niet noodzakelijk.By also (partially) including the surrounding water in the circuit, the larvae and other organisms are taken into the vicinity of the surface to be treated. This means that continuous surface treatment is not necessary.
1029964-1029964-
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1029964A NL1029964C1 (en) | 2005-09-15 | 2005-09-15 | Barnacle growth prevention device for ship hull surfaces, comprises electrical circuit with means for making barnacles resonate |
| NL1030653A NL1030653C2 (en) | 2005-09-15 | 2005-12-12 | Equipment is for inhibition of growth of marine organisms, such as Japanese oysters, mussels and Cyprus larvae, which adhere to the hulls of vessels underwater |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1029964A NL1029964C1 (en) | 2005-09-15 | 2005-09-15 | Barnacle growth prevention device for ship hull surfaces, comprises electrical circuit with means for making barnacles resonate |
| NL1029964 | 2005-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL1029964C1 true NL1029964C1 (en) | 2007-03-16 |
Family
ID=36283794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1029964A NL1029964C1 (en) | 2005-09-15 | 2005-09-15 | Barnacle growth prevention device for ship hull surfaces, comprises electrical circuit with means for making barnacles resonate |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL1029964C1 (en) |
-
2005
- 2005-09-15 NL NL1029964A patent/NL1029964C1/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| VD1 | Lapsed due to non-payment of the annual fee |
Effective date: 20090401 |