EP0798206A1 - Ship mooring structure - Google Patents

Ship mooring structure Download PDF

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Publication number
EP0798206A1
EP0798206A1 EP97200787A EP97200787A EP0798206A1 EP 0798206 A1 EP0798206 A1 EP 0798206A1 EP 97200787 A EP97200787 A EP 97200787A EP 97200787 A EP97200787 A EP 97200787A EP 0798206 A1 EP0798206 A1 EP 0798206A1
Authority
EP
European Patent Office
Prior art keywords
sea
tankers
mooring
open
yieldable elements
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Withdrawn
Application number
EP97200787A
Other languages
German (de)
English (en)
French (fr)
Inventor
Franco Nicolussi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tecnomare SpA
Original Assignee
Tecnomare SpA
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 Tecnomare SpA filed Critical Tecnomare SpA
Publication of EP0798206A1 publication Critical patent/EP0798206A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • B63B22/025—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids and comprising a restoring force in the mooring connection provided by means of weight, float or spring devices
    • 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

Definitions

  • This invention relates to a structure for the sea-mooring of ships, preferably tankers, which require positioning during the loading and unloading of fluid products.
  • sea-mooring structure Numerous sea-mooring structure are known, particularly for loading and unloading with connections to underwater pipelines.
  • the technical problem concerns off-shore petroleum terminals or in a roadstead, not in protected port areas.
  • a ship, or a watercraft in general is usually restrained by its bow, and when subjected to the action of meteo-oceanographic agents it moves angularly about the restraint point so as to always offer its bow to these agents, ie the minimum transverse area to this action, and exerts a pull on the restraint point which is proportional to the intensity of the agents. It is well known to operators in this field that even under the worst operating conditions the sea mooring must always offer maximum assurance of safety.
  • a sea-mooring system is known in the art in which the berthing equipment emerging from the sea surface is anchored to the sea bed by a certain number of variously arranged chains fixed to the sea bed and pretensioned to a greater or lesser extent depending on the anchoring rigidity required.
  • the main object of the present invention is to provide a mooring structure which obviates the aforesaid drawbacks and which, in the case of exceptionally violent collision, is deformed only in predetermined limited regions of its structure, these regions being easily and economically replaceable and repairable, while the mooring head and the lower part for anchoring to the sea bed, ie the most complicated and costly parts, remain unaltered.
  • a further object is to provide a mooring structure which, even in the case of very violent collision by a watercraft, is able to deaden the impact energy and to effectively and elastically resist the collision itself, without damaging the watercraft.
  • a further object of the present invention is to provide a berthing structure which is particularly simple and consequently relatively economical.
  • the mooring structure of the present invention which is characterised essentially by an immersed part consisting of a wide rigid foundation base and a vertical upright rigidly fixed to a disc, the outer circular crown rim of which is connected to elastically yieldable elements, which are supported and sustained in position by an underlying circular element rigidly fixed to the foundation base, between said foundation base and said vertical upright there being generated more or less accentuated angular rotational movements caused by the elastic deformation of the yieldable elements.
  • the structure for mooring tankers in open sea is further characterised in that the elastically yieldable elements are axially symmetrical blocks positioned and fixed, one following another, between the vertical upright and the underlying wide rigid base body, said elastically yieldable elements being preferably of elastomer material reinforced with metal discs and inserts, or in the form of hydraulic or similar actuators.
  • the structure for mooring tankers in open sea is also characterised in that the elastically yieldable elements are positioned inclined to the vertical axis of the upright in the configuration of a fascia generating a converging cone with its vertex in the direction of the sea bed, or alternatively said elastically yieldable elements are positioned with their vertical axes substantially parallel to the vertical axis of the upright, or alternatively said elastically yieldable elements are positioned inclined to the vertical axis of the upright in the configuration of a fascia generating a converging cone with its vertex in the direction of the sea surface.
  • the structure for mooring tankers in open sea shown on the accompanying drawings, consists of an immersed base 1 driven into the sea bed 10 by means of suitably arranged piles 2.
  • the structure of the present invention is described herein as located on the sea bed, it is equally of use in other waters.
  • the structure hence consists essentially of a large solid fixed platform indicated overall by 1, constructed on piles driven into the sea bed and depending on the depth of the sea bed can be partly or totally encased. Other types of fixing can be used.
  • Said fixed structure 1 centrally supports the upright column 5, which extends to emerge from the sea surface to represent the element for supporting and connecting the berthing equipment required for mooring the tanker, or for landing any watercraft.
  • Said upright column 5 is connected in proximity to the sea bed 10 to a hinge element 8 which with operational innovation enables the vertical upright 5 to undergo more or less accentuated angular oscillation.
  • the angular oscillation of the entire column 5 is made feasible by the elastic deformation of the yieldable elements 3 fixed and positioned, one following another, between the rigid circular element 9 rigidly fixed to the fixed structure 1 and the radial circular crown rim projections of the disc 6, this latter rigidly fixed to the column upright 5, which comprises along its vertical extension projection elements 16 of known type in terms of their structure and location.
  • the fluid transfer pipe 7 is arranged for its protection internal to the column upright 5 and is advantageously located in a central position along the vertical axis 4. Said pipe 7 extends vertically to emerge from the sea surface to convey the fluid to the main hose 12 via articulated joints or ball valves 14.
  • the emerging berthing structure comprises the known landing element 15 for any watercraft. Tanker mooring is implemented in accordance with the known art as long used in arriving at the berthing point.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Foundations (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP97200787A 1996-03-21 1997-03-17 Ship mooring structure Withdrawn EP0798206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI960557 1996-03-21
IT96MI000557A IT1283549B1 (it) 1996-03-21 1996-03-21 Struttura per l'ormeggio di navi

Publications (1)

Publication Number Publication Date
EP0798206A1 true EP0798206A1 (en) 1997-10-01

Family

ID=11373725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97200787A Withdrawn EP0798206A1 (en) 1996-03-21 1997-03-17 Ship mooring structure

Country Status (2)

Country Link
EP (1) EP0798206A1 (enrdf_load_stackoverflow)
IT (1) IT1283549B1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6227135B1 (en) 1999-05-25 2001-05-08 Fmc Corporation Torsion spring torque arm yoke mooring system
US6439147B2 (en) 2000-01-07 2002-08-27 Fmc Technologies, Inc. Mooring systems with active force reacting systems and passive damping
CN109178213A (zh) * 2018-10-26 2019-01-11 东台市万舟船用设备有限公司 一种台风预警功能的浮标

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793843A (en) * 1972-09-14 1974-02-26 A Malkiel Floating breasting platform
GB1511313A (en) * 1975-08-04 1978-05-17 Technigaz Offshore loading and unloading installation for fluid cargoes
FR2406033A1 (fr) * 1977-10-13 1979-05-11 Emh Entreprise Equip Meca Hydr Systeme de protection pour une colonne d'amarrage d'un navire
EP0079631A1 (en) * 1981-11-16 1983-05-25 Shell Internationale Researchmaatschappij B.V. Single-point ship mooring system for transferring fluids
EP0169120A1 (fr) * 1984-06-27 1986-01-22 Technip-Geoproduction Dispositif d'articulation entre une installation marine et un bras d'amarrage d'une installation flottante

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793843A (en) * 1972-09-14 1974-02-26 A Malkiel Floating breasting platform
GB1511313A (en) * 1975-08-04 1978-05-17 Technigaz Offshore loading and unloading installation for fluid cargoes
FR2406033A1 (fr) * 1977-10-13 1979-05-11 Emh Entreprise Equip Meca Hydr Systeme de protection pour une colonne d'amarrage d'un navire
EP0079631A1 (en) * 1981-11-16 1983-05-25 Shell Internationale Researchmaatschappij B.V. Single-point ship mooring system for transferring fluids
EP0169120A1 (fr) * 1984-06-27 1986-01-22 Technip-Geoproduction Dispositif d'articulation entre une installation marine et un bras d'amarrage d'une installation flottante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6227135B1 (en) 1999-05-25 2001-05-08 Fmc Corporation Torsion spring torque arm yoke mooring system
US6439147B2 (en) 2000-01-07 2002-08-27 Fmc Technologies, Inc. Mooring systems with active force reacting systems and passive damping
CN109178213A (zh) * 2018-10-26 2019-01-11 东台市万舟船用设备有限公司 一种台风预警功能的浮标

Also Published As

Publication number Publication date
IT1283549B1 (it) 1998-04-22
ITMI960557A1 (it) 1997-09-21
ITMI960557A0 (enrdf_load_stackoverflow) 1996-03-21

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