EP0072898A1 - Joint articulé pour raccorder une structure de support mobile d'une plate-forme du type off-shore aux fondations - Google Patents

Joint articulé pour raccorder une structure de support mobile d'une plate-forme du type off-shore aux fondations Download PDF

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Publication number
EP0072898A1
EP0072898A1 EP82105561A EP82105561A EP0072898A1 EP 0072898 A1 EP0072898 A1 EP 0072898A1 EP 82105561 A EP82105561 A EP 82105561A EP 82105561 A EP82105561 A EP 82105561A EP 0072898 A1 EP0072898 A1 EP 0072898A1
Authority
EP
European Patent Office
Prior art keywords
joint
ball
capsule
foundation
tower
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.)
Granted
Application number
EP82105561A
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German (de)
English (en)
Other versions
EP0072898B1 (fr
Inventor
Werner Rank
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of EP0072898A1 publication Critical patent/EP0072898A1/fr
Application granted granted Critical
Publication of EP0072898B1 publication Critical patent/EP0072898B1/fr
Expired 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 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4406—Articulated towers, i.e. substantially floating structures comprising a slender tower-like hull anchored relative to the marine bed by means of a single articulation, e.g. using an articulated bearing
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32631—Universal ball and socket

Definitions

  • the invention relates to an ankle joint for connecting a movable supply tower of an off-shore system to a component which is anchored in / on the sea floor and is designed as a foundation, using a ball joint which is pivotable on all sides and is sealed between the foot of the supply tower and the foundation and is sealed against water ingress which the joint part fastened in / at the foot of the tower is held together with the other joint part which is firmly anchored on the foundation by means of a tension member which is movable on all sides around the center of the ball joint, and a diving bell which partially surrounds the ankle joint.
  • An ankle of the aforementioned type is known from DE-PS 25 49 859.
  • the articulated part fastened in the foot of the tower is designed as an outer spherical zone which slides on the spherical articulated part which is immovably connected to the foundation when the tower moves.
  • the formation of the sliding surfaces of the ball joint is described in DE-OS 27 55 592.
  • interchangeable, spherically shaped, a spherical gap between them and sliding on the spherical mating surface of the other joint part are attached, the sliding surfaces of which consist of a material with a low coefficient of friction.
  • the sliding area between the two spherical half-shells is secured upwards and downwards by ring-shaped seals that close the gap between the spherical half-shells.
  • the sliding shoes arranged in the relatively narrow gap between the spherical half-shells are accessible only after the upper seal has been removed. Monitoring the functionality and condition by observation is therefore not possible. It is difficult to replace the spherically shaped slide shoes and the upper seal due to the limited space and the geometry within the ball joint. The production of the ball joint, in particular the machining of the ball half shells and the sliding shoes, requires considerable effort.
  • the object of the present invention is to improve the ankle in such a way that the components subject to wear, in particular the bearing plates and the stuffing box packing, are freely accessible in order to enable ongoing monitoring and maintenance and any necessary replacement of parts can be carried out easily and that the manufacture of the joint is simplified. Furthermore, the anchoring of the joint, including the tower, on the foundation on the seabed is to be facilitated and the accessible space for various uses is to be enlarged.
  • the articulated part of the ball joint fastened in / at the foot of the tower is mounted in a joint capsule, which is designed as a cylindrical capsule shell with a footplate firmly connected to the foundation, and several support bearings are arranged within the joint capsule which the joint part, which is designed as a joint ball and which is connected to the tower via the ball neck, slides, and a cover ring with a collar designed as a spherical zone is arranged on the capsule shell, which closes the ball joint except for a residual gap which is sealed from the inside of the joint capsule with a stuffing box .
  • the joint ball connected to the tower is pulled against the support surfaces of the support bearings by means of a tension member.
  • the tension member is fixed on the one hand in the tower base and anchored on the opposite side in the foundation via a universal joint.
  • the universal joint is arranged so that its axes of rotation intersect at the center of the ball joint.
  • the support bearings are interchangeably arranged on the circumference of a circle, the diameter of which is smaller than the equator of the joint ball, on brackets on the cylindrical capsule shell or on the base plate.
  • Each support bearing consists of the bearing foot, a bearing shell adapted to the surface of the joint ball and a hydraulic cylinder arranged between the bearing foot and the bearing shell, which is mounted by means of crowned end pieces in ball sockets of the bearing foot and the bearing shell.
  • the hydraulic cylinders of all support bearings are communicatively connected. This ensures that, in the event of fluctuations in the tower, the contact forces for all bearings and thus also the reaction forces acting on the joint capsule or on the foundation are always the same.
  • the storage of the hydraulic cylinders in ball sockets ensures that the contact surfaces always lie correctly and that the forces are safely transferred to the bearing brackets.
  • the bearing shells are designed for hydrostatic mounting of the joint ball and provided with PTFE plates that have grooves or chambers for the absorption of a lubricant.
  • the bearing shells are supplied with lubricant individually and independently of one another from a central pressure lubrication device. This ensures that the support bearing can be replaced without affecting the operational safety of the ball joint.
  • the free accessibility of the support bearings allows constant monitoring and maintenance of the same.
  • the polished surface of the joint ball sliding on the bearings which can be clad with a corrosion-resistant material, is largely accessible depending on the inclined position of the tower and can also be kept under control and easily freed of any adhering deposits. There is thus a significant advantage over the storage in known ankles.
  • the cover ring arranged on the capsule casing protects the surface of the joint ball connected to the tower with its collar designed as a spherical zone in conjunction with a diving bell and closes the gap between the fixed and movable joint part in the horizontal center axis of the ball joint.
  • the stuffing box gland is made of several parts to enable repacking.
  • the packing can consist of sleeve seals or packing rings with a pressure oil ring.
  • the glasses can be readjusted manually, via electrically driven adjusting devices or by means of hydraulically or pneumatically actuated actuators, the latter acting uniformly on the pack via lockable rocker arms and a pressure ring.
  • the ankle is surrounded in its upper area by a diving bell, which is designed as a multi-part spherical zone and is attached to the ball neck and in connection with the collar of the cover ring of the joint capsule forms a water barrier in that an air cushion with an air pressure corresponding to the water depth is maintained in the space between the diving bell and the collar.
  • the area of the air cushion is checked for water penetration by probes arranged in the wall of the collar of the cover ring and, if necessary, regulation of the air pressure is triggered. In normal operating conditions, no water gets to the gap seal between the movable joint ball and the cover ring.
  • the air escaping through the stuffing box into the interior of the joint serves to ventilate the room. Since the volume of the air cushion is relatively small, it is easy to maintain the pressure corresponding to the depth of the sea.
  • the connecting elements between the foundation and the base plate are arranged within the joint capsule and are provided with sealing devices.
  • the advantageous manufacture of the ankle described is that only one outer surface of the joint ball has to be machined, plated and ground, the cylindrical capsule shell is simpler in construction and the cover ring only requires machining of the flange and the stuffing box seat.
  • outward-facing secondary chambers are used in the cylindrical capsule shell, which have pressure-tight closure devices that can be actuated by hydraulic systems on both sides and can be drained and flooded via a pump and compressed air system.
  • the secondary chambers winches are arranged, which serve to support the management unda- Absenkmanövers of the tower to the F. At least three secondary chambers are preferably equipped with cable winches. A T rescuer is stationed in at least one secondary chamber for the safety of the maintenance personnel. In a further embodiment of the ankle it is provided that the secondary chambers are equipped with connection devices for the arrangement of further satellite chambers.
  • the ball joint 3 is arranged, which enables the tower to be pivoted on all sides.
  • the joint part 4 which is designed as a joint ball, is firmly connected on the one hand via the ball neck 5 to the foot of the tower 1 and others on the one hand in the articulated capsule 6 anchored on the foundation 2.
  • the tension member 7 can be adjustable in its longitudinal direction.
  • the joint ball of the joint part 4 has openings at the top and bottom through which the supply lines and oil production lines can be guided in addition to the pull rod 7 and which enable the joint capsule 6 to be walked on.
  • the joint capsule 6 consists of the cylindrical capsule shell 8, the base plate 9, a number of support bearings 11 arranged on brackets 10 or 10 a and a cover ring 12 or 12 a as well as a collar 13 designed as a spherical zone. According to FIG. 1, the brackets 10 are on attached inner diameter of the capsule shell 8 and the cover ring 12 combined with the collar 13 in one unit. With a larger diameter of the capsule shell 8 according to FIG.
  • the brackets 10 a can be arranged on the base plate 9 and the cover ring 12 a can be designed in a curved shape.
  • Figure 2 shows the structure of the support bearing 11, which is uniformly distributed below the horizontal central axis of the ball joint on a smaller diameter and is composed of the bearing base 14 with a ball socket 15, a hydraulic cylinder 16 with crowned end pieces 17 and the bearing shell 18, the sliding surface of which the joint ball 4 is adapted and the side facing the hydraulic cylinder 16 has a ball socket 15.
  • These support bearings are characterized by optimum adaptability to the movements of the joint ball 4.
  • a stuffing box 19 is provided in the horizontal central axis of the ball joint 3, which is supported on the cover ring 12 or the collar 13.
  • Figure 3 shows the anchoring of the joint capsule 6 on the F unda- element 2.
  • the connecting elements 21 between the foundation and the foot plate 9 are arranged within the joint capsule 6 and provided with sealing means 22nd It is also possible to design the connecting elements as hydraulically or pneumatically actuated locking devices.
  • a plurality of secondary chambers 23 are arranged on the circumference of the capsule shell 8, which are provided on the inside and outside with pressure-tight closure devices 24 which are actuated via hydraulic systems 25. Cable winches installed in at least three secondary chambers 23 simplify the lowering maneuver of the tower and the fastening of the ball joint 3 on the foundation 2. Furthermore, the secondary chambers 23 can have connection devices 26 for the arrangement of further satellite chambers 27, which can be used as storage containers or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Ocean & Marine Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Revetment (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Foundations (AREA)
  • Pivots And Pivotal Connections (AREA)
EP82105561A 1981-08-19 1982-06-24 Joint articulé pour raccorder une structure de support mobile d'une plate-forme du type off-shore aux fondations Expired EP0072898B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3132711 1981-08-19
DE3132711A DE3132711C1 (de) 1981-08-19 1981-08-19 Fussgelenk zur Verbindung eines beweglichen Versorgungsturmes einer Off-Shore-Anlage mit einem Fundament

Publications (2)

Publication Number Publication Date
EP0072898A1 true EP0072898A1 (fr) 1983-03-02
EP0072898B1 EP0072898B1 (fr) 1985-02-13

Family

ID=6139605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105561A Expired EP0072898B1 (fr) 1981-08-19 1982-06-24 Joint articulé pour raccorder une structure de support mobile d'une plate-forme du type off-shore aux fondations

Country Status (5)

Country Link
US (1) US4432668A (fr)
EP (1) EP0072898B1 (fr)
JP (1) JPS5841185A (fr)
DE (2) DE3132711C1 (fr)
NO (1) NO822806L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567051B2 (en) * 1984-12-24 1987-11-05 Exxon Production Research Company Motion decoupling mechanism for fluid swivel stack

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230937C1 (de) * 1982-08-20 1983-10-20 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Fußgelenk zur Verbindung eines beweglichen Versorgungsturmes einer Off-Shore-Anlage mit einem Fundament
DE3405716A1 (de) * 1984-02-17 1985-09-05 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Kugelgelenk zur verbindung eines eine ueberwasserplattform tragenden turmes mit einem auf dem meeresboden gegruendeten fundament
US4813815A (en) * 1985-08-01 1989-03-21 University Of Florida Buoyant, elastically tethered articulated marine platform
US4696601A (en) * 1986-07-14 1987-09-29 Exxon Production Research Company Articulated compliant offshore structure
US4781497A (en) * 1987-02-02 1988-11-01 Conoco Inc. Tension-restrained articulated platform tower
US5308036A (en) * 1991-08-02 1994-05-03 Optical Specialties Inc. Kinematic isolation stand connector
DE29714531U1 (de) * 1997-08-14 1997-11-13 Mangfall Plastik GmbH, 83026 Rosenheim Fußteller mit Kugelgelenk und Schutzabdeckung
JP4282667B2 (ja) * 2003-02-01 2009-06-24 アロイス・ヴォベン 風力発電設備の構築方法および風力発電設備
AP3558A (en) * 2010-10-04 2016-01-18 Horton Wison Deepwater Inc Tension buoyant tower
FR2966175B1 (fr) * 2010-10-18 2012-12-21 Doris Engineering Dispositif de support d'une eolienne de production d'energie electrique en mer, installation de production d'energie electrique en mer correspondante.
EP2913268B1 (fr) 2014-02-26 2018-08-01 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Agencement de palier avec une première couche de palier et une seconde couche de palier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1208834A (en) * 1967-02-24 1970-10-14 Cie Francaise D Entpr S Metall Improvements in or relating to marine off-shore structures
FR2330941A1 (fr) * 1975-11-06 1977-06-03 Bilfinger Berger Bau Liaison entre une plate-forme situee a la surface ou au-dessus d'un plan d'eau et ses fondations
DE2737228A1 (de) * 1977-08-18 1979-03-01 Lga Gas & Marine Consult Gmbh Vorrichtung zur unterwasserverbindung einer festliegenden fluessigkeitsfoerderleitung mit einer bewegten anschlussleitung an einer boje
GB2010365A (en) * 1977-12-14 1979-06-27 Bilfinger Berger Bau Spherical joints for connecting under-water foundations to platform-supporting towers
DE2840881A1 (de) * 1978-09-20 1980-04-03 Bilfinger Berger Bau Schutzeinrichtung
DE2847157A1 (de) * 1978-10-30 1980-05-14 Gutehoffnungshuette Sterkrade Kugelgelenk mit schutzeinrichtung gegen seewassereinwirkung
EP0044231A1 (fr) * 1980-07-11 1982-01-20 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Joint flexible pour le raccordement de deux conduites

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US856713A (en) * 1907-02-21 1907-06-11 Edward Lovley Wrecking appliance.
US1272110A (en) * 1917-12-12 1918-07-09 Arthur W Robinson Dredge.
US2079663A (en) * 1934-09-17 1937-05-11 Insley Mfg Corp Ball bearing turntable
US2089439A (en) * 1936-01-25 1937-08-10 Eastman Kodak Co Adjustable tripod head
US2906500A (en) * 1956-12-21 1959-09-29 Jersey Prod Res Co Completion of wells under water
US2988144A (en) * 1957-09-10 1961-06-13 Baker Oil Tools Inc Method and apparatus for drilling and completing underwater well bores
US3154333A (en) * 1962-08-16 1964-10-27 Automotive Prod Co Ltd Ball-and-socket joints
US3387482A (en) * 1965-02-12 1968-06-11 Gen Electric Bearing suspension system
US3708985A (en) * 1970-12-07 1973-01-09 Texaco Inc Articulated marine platform
US3766582A (en) * 1972-02-07 1973-10-23 Exxon Production Research Co Offshore structure having a removable pivot assembly
US3735597A (en) * 1972-02-24 1973-05-29 Exxon Production Research Co Hinge system for offshore structure
GB2066336B (en) * 1979-12-27 1983-11-02 Doris Dev Richesse Sous Marine Oscitlalable marine installation and method for its construction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1208834A (en) * 1967-02-24 1970-10-14 Cie Francaise D Entpr S Metall Improvements in or relating to marine off-shore structures
FR2330941A1 (fr) * 1975-11-06 1977-06-03 Bilfinger Berger Bau Liaison entre une plate-forme situee a la surface ou au-dessus d'un plan d'eau et ses fondations
DE2737228A1 (de) * 1977-08-18 1979-03-01 Lga Gas & Marine Consult Gmbh Vorrichtung zur unterwasserverbindung einer festliegenden fluessigkeitsfoerderleitung mit einer bewegten anschlussleitung an einer boje
GB2010365A (en) * 1977-12-14 1979-06-27 Bilfinger Berger Bau Spherical joints for connecting under-water foundations to platform-supporting towers
DE2840881A1 (de) * 1978-09-20 1980-04-03 Bilfinger Berger Bau Schutzeinrichtung
DE2847157A1 (de) * 1978-10-30 1980-05-14 Gutehoffnungshuette Sterkrade Kugelgelenk mit schutzeinrichtung gegen seewassereinwirkung
EP0044231A1 (fr) * 1980-07-11 1982-01-20 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Joint flexible pour le raccordement de deux conduites

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567051B2 (en) * 1984-12-24 1987-11-05 Exxon Production Research Company Motion decoupling mechanism for fluid swivel stack

Also Published As

Publication number Publication date
NO822806L (no) 1983-02-21
DE3132711C1 (de) 1982-12-16
US4432668A (en) 1984-02-21
EP0072898B1 (fr) 1985-02-13
DE3262320D1 (en) 1985-03-28
JPS5841185A (ja) 1983-03-10

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