EP3687891A1 - A less hardware mooring system, process and uses thereof - Google Patents
A less hardware mooring system, process and uses thereofInfo
- Publication number
- EP3687891A1 EP3687891A1 EP18871860.5A EP18871860A EP3687891A1 EP 3687891 A1 EP3687891 A1 EP 3687891A1 EP 18871860 A EP18871860 A EP 18871860A EP 3687891 A1 EP3687891 A1 EP 3687891A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting element
- lines
- connection
- mooring system
- eye
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008569 process Effects 0.000 title description 2
- 241000251468 Actinopterygii Species 0.000 claims abstract description 13
- 238000007667 floating Methods 0.000 claims description 24
- 239000002861 polymer material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000009360 aquaculture Methods 0.000 abstract description 5
- 244000144974 aquaculture Species 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
-
- 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
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
- A01K61/65—Connecting or mooring devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
- B63B2021/203—Mooring cables or ropes, hawsers, or the like; Adaptations thereof
-
- 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
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Definitions
- the invention is in field of mooring systems. More particularly, to a less hardware mooring system used to hold the aquaculture fish farm against disturbing forces due to wind, wave, current and other forces due to marine traffic.
- Less hardware mooring systems have become widely recognised over last few years for their excellent performance over conventional mooring systems having steel components. They have several advantages over conventional system such as no corrosion, less frequent inspection etc.
- the term "less hardware” broadly applies to any combination of ropes, endless rings, rope with spliced eye, usually used to replace steel components.
- the materials may include, for example, HDPE or Dyneema® ropes or combination thereof.
- conventional mooring systems consists of metal components such as connecting plate, D-shackle, thimble, master link etc. Over the period of time these components undergo corrosion and needs repair. Since the system operates in high current, wind and wave, environmental forces are high. As the steel components may reduce their strength due to corrosion they may fail during operation.
- Figure 1 shows the fish farming facility and the components of the mooring system in a view from top.
- Figure 2 shows the side view of the facility and the components of mooring system.
- Figure 3 shows the perspective view of the facility and components of mooring system.
- Figure 4 shows schematically the rope-in-rope connection of mooring lines.
- Figure 5 shows schematically the connection between connecting element, grid line and cage mooring line (eye-in-eye connection).
- the reference numeral (1) indicates a less hardware mooring system for floating structure.
- the mooring system includes anchor lines (2), grid lines (3), net-cage mooring lines (4), buoy lines (5) and connecting element (6).
- the mooring system (1) holds the net cage (10) fixed in position.
- Figure 2 further shows floating collar (7).
- the net cage (10) is shown with additional labelling and views.
- the anchor lines (2) at their first end are connected to chain (11) at its first end.
- chain (11) At the second end of chain (11), is connected to anchor (12) resting on sea-bed (13).
- the chain (11) is heavy and it rests on seabed. This is why anchor line (2) is not subjected to jerks.
- the chain (11) is lifted up when there is tension in anchor line
- connecting element (6) is a special arrangement of ropes. Accordingly, two ropes are joined together by crossing one another and forming a locking arrangement consisting of rope-in-rope connection between them. This node in mooring system experiences heavy loading therefore high strength ropes to be used.
- connection between connecting element (6) and anchor line (2) is made of ropes which in turn are made of polymer material. The end of connecting element (6) and anchor line (2) are spliced and formed into an eye shape.
- anchor lines (2) are attached to connecting element (6).
- connecting element (6) is shown rectangular; however, it can take any shape due to forces acting on attached lines and since it is flexible.
- the grid line (3) extends from one connecting element (6) to other connecting element and so on.
- Grid lines (3) form a network of ropes around the net cage (10).
- the connecting element (6) and grid lines (3) are submerged below water level upto few meter so that a vessel can pass without any obstruction.
- connecting element (3) attach to connecting element (6).
- the grid lines (3) are spliced to form an eye.
- connecting element (6) formed of ropes (rope-in-rope connection) also spliced to form eyes at its four ends. This is shown in Figure 4 and Figure 5.
- the net cage mooring lines (4) hence after known as bridle lines extends from one connecting element (6) to floating collar (7).
- the bridle lines (4) at one end are connected to floating collar (7) and at their other end these line are connected to connecting element (6) by eye-in-eye or by direct woven connection of two or more ropes construction as shown in figure 5.
- the buoy line (5) extends from connecting element (6) to a floating buoy (15) wherein the floating buoy (15) is on the water surface (14).
- Described herein is a less hardware mooring system used for holding the aquaculture fish farm against disturbing forces due to wind, wave, current and other forces due to marine traffic.
- the invention relates to method of connecting net cage mooring lines, floating buoy lines (5) and anchor lines (2) together, wherein these are generally submerged in water and are continuously under the action of forces.
- the present invention relates to the connecting element (6) in the mooring system for floating structures, wherein the mooring system constitutes atleast one anchor line and two other lines which extends in different directions, in different plane and the connecting element (6) being constructed by flexible ropes.
- grid lines, net cage mooring lines and anchor lines are connected to connecting element (6) by spliced eye-in-eye or by direct woven connection of two or more ropes connection.
- a fish farm facility comprises of many components. These are net bag, floating collar, lifesaving equipments such as rafts and mooring system.
- the fish farm facility is constituted by two or more cages.
- the mooring system of the facility constitute of series of anchors at the sea bed. To the anchors, one end of heavy chains is connected. The chains are generally lying on seabed and restrict vertical movement. Other end of chain is connected to one end of a line whose other end is connected to the connecting element submerged in water.
- the line is generally a rope made of polymer material. This line is known as anchor line (2).
- anchor line There can be more than one anchor lines connected to the connecting element (6).
- a floating buoy (15) is connected via buoy rope whose one end is connected to the connecting element (6) and other end to the floating buoy (15).
- the floating buoy (15) helps to keep grid lines (3) at desired water depth. Every cage is surrounded by grid of ropes. The ropes are connected to each other at different nodes. Therefore, for example a grid line (3) at the end of the fish farm facility has one end connected to one connecting element (6) and other end is connected to other connecting element (6) and so on. Further from the connecting element atleast one line is connected to cage structure. Generally two lines from the connecting element are connected to floating collar (7). This helps in sharing load between two lines and station keeping.
- Conventional mooring systems consists of metal components such as connecting plate, D-shackle, thimble, master link etc. Over the period of time these components undergo corrosion and needs repair. As the system operates in high current, wind and wave, therefore environmental forces are high. As the steel components may reduce their strength due to corrosion they may fail during operation.
- connecting elements (6) instead of using metal and metal alloys as connecting element, flexible ropes are used as connecting elements (6). More specifically, the connecting element (6) is constructed by rope-in-rope construction. To the connecting element anchor line (2), grid line (3), buoy line (5) and cage structure mooring lines or bridles (4) are attached. The lines can be attached directly to the connecting element (6) by their spliced eye-in-eye or by direct woven connection of two or more ropes connection method. To avoid rope-to-rope friction smaller spliced eye was formed on cage structure mooring lines (4).
- the connecting element (6) is a special arrangement of ropes. Two ropes joined together by crossing one another and forming a locking arrangement between them. This node in mooring system experiences heavy loading therefore high strength ropes to be used. At the four ends of connecting element spliced eyes are to be formed for connection to other ropes. Connection between connecting element (6) and anchor line (2) is made of ropes. Said ropes are made of polymer material. The end of connecting element (6) and anchor line (2) are spliced and formed into an eye shape. These eyes were covered with protective fabric made of polyester material. These eyes were then joined together as if it is forming a chain.
- the connecting element of the invention includes two ropes crossing each other to form rope-in-rope connection.
- grid lines, net cage mooring lines and anchor lines are connected to connecting element (6) by spliced eye-in-eye or by direct woven connection of two or more ropes connection.
- the invention relates to the method of setting up mooring system for floating structures, wherein the floating structure is moored to sea-bed by anchor lines.
- the first option is use of ropes. At first end the buoy line (5) is attached to connecting element (6) by forming loop connection and at the other end, it is attached to floating buoy (15) by forming round rope by endless sling.
- the second option is use of round sling. The method is similar to explained above. There is slight modification at the buoy end.
- Present invention is described for sea water, but the invention is equally suitable for lakes, inland waters and brackish waters as well.
- floating structure fish farm facility is described here.
- Other floating structures may include floating platforms, offshore wind turbines and offshore floating oil platforms etc.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Ropes Or Cables (AREA)
- Farming Of Fish And Shellfish (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN201721038939 | 2017-11-01 | ||
PCT/IN2018/050683 WO2019087206A1 (en) | 2017-11-01 | 2018-10-23 | A less hardware mooring system, process and uses thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3687891A1 true EP3687891A1 (en) | 2020-08-05 |
EP3687891A4 EP3687891A4 (en) | 2021-06-23 |
Family
ID=66333465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18871860.5A Withdrawn EP3687891A4 (en) | 2017-11-01 | 2018-10-23 | A less hardware mooring system, process and uses thereof |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3687891A4 (en) |
AU (1) | AU2018360414A1 (en) |
CA (1) | CA3079791A1 (en) |
CL (1) | CL2020001083A1 (en) |
WO (1) | WO2019087206A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE545893C2 (en) * | 2020-11-04 | 2024-03-05 | Tjololo Ab | Mooring system for a floating platform |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO336329B1 (en) * | 2006-01-16 | 2015-08-03 | Fobox As | anchoring System |
US9056656B2 (en) * | 2008-07-18 | 2015-06-16 | Thomas W. Fields | Mooring loop |
CN101669460B (en) * | 2008-09-08 | 2010-12-22 | 中国水产科学研究院东海水产研究所 | Method for manufacturing high-performance force separating ring for seawater cage |
NO337727B1 (en) * | 2011-05-10 | 2016-06-13 | Moerenot As | Mooring system and method of establishing the mooring system |
NO337394B1 (en) * | 2014-03-04 | 2016-04-04 | Aqualine As | Mooring System |
NO20150859A1 (en) * | 2015-07-02 | 2016-11-14 | Aqualine As | Mooring system |
-
2018
- 2018-10-23 WO PCT/IN2018/050683 patent/WO2019087206A1/en unknown
- 2018-10-23 EP EP18871860.5A patent/EP3687891A4/en not_active Withdrawn
- 2018-10-23 AU AU2018360414A patent/AU2018360414A1/en not_active Abandoned
- 2018-10-23 CA CA3079791A patent/CA3079791A1/en not_active Abandoned
-
2020
- 2020-04-22 CL CL2020001083A patent/CL2020001083A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019087206A1 (en) | 2019-05-09 |
AU2018360414A1 (en) | 2020-05-14 |
CL2020001083A1 (en) | 2020-12-18 |
EP3687891A4 (en) | 2021-06-23 |
CA3079791A1 (en) | 2019-05-09 |
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Legal Events
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20200430 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20210526 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B63B 21/50 20060101AFI20210519BHEP Ipc: E02B 3/06 20060101ALI20210519BHEP Ipc: A01K 61/65 20170101ALI20210519BHEP Ipc: B63B 21/20 20060101ALI20210519BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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17Q | First examination report despatched |
Effective date: 20220804 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20221215 |