NO832995L - LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATION - Google Patents

LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATION

Info

Publication number
NO832995L
NO832995L NO832995A NO832995A NO832995L NO 832995 L NO832995 L NO 832995L NO 832995 A NO832995 A NO 832995A NO 832995 A NO832995 A NO 832995A NO 832995 L NO832995 L NO 832995L
Authority
NO
Norway
Prior art keywords
joint
ball
foundation
link
tower
Prior art date
Application number
NO832995A
Other languages
Norwegian (no)
Inventor
Werner Rank
Original Assignee
Maschf 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 Maschf Augsburg Nuernberg Ag filed Critical Maschf Augsburg Nuernberg Ag
Publication of NO832995L publication Critical patent/NO832995L/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4406Articulated 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

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)
  • Earth Drilling (AREA)
  • Joints Allowing Movement (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Vehicle Body Suspensions (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Oppfinnelsen angår en leddforbindelse mellom et bevegelig forsyningstårn og en på havbunnen forankret, som fundament utformet bygningskonstruksjon i et offshoreanlegg, ved bruk av et kuleledd mellom forsyningstårnets fot, som er avtettet mot vanninntrengning, hvor den til tårnets fot festede leddel holdes sammen med den til fundamentet fast forankrede leddel ved hjelp av et til kuleleddets midtpunkt i alle retninger bevegelige strekkledd, samt en dykkerklokke som delvis omslutter forbindelsesleddet og hvor kuleleddets til tårnets fot' festede leddel er opplagret i en leddkapsling som er utført som en sylindrisk kapslingsmantel med en til fundamentet fast forbundet fotplate og hvor flere støttelagre er anordnet i leddkapselen, på hvilke den som leddkule utformede leddel, som via kulens hals er forbundet med tårnet, glir, og hvor videre en dekselring med som kulesone utformet krage er anordnet på kapselmantelen, og som bortsett fra en resterende spalt omslutter kuleleddet som fra leddkapselens indre er avtettet med en pakningsboks. The invention relates to a joint connection between a movable supply tower and a building structure anchored to the seabed, designed as a foundation in an offshore facility, using a ball joint between the base of the supply tower, which is sealed against water ingress, where the joint attached to the base of the tower is held together with that to the foundation firmly anchored link by means of a tension link that can be moved in all directions to the center of the ball joint, as well as a diver's bell which partially encloses the connecting link and where the link attached to the base of the ball joint is stored in a joint casing which is designed as a cylindrical casing with a firmly connected to the foundation foot plate and where several support bearings are arranged in the joint capsule, on which the joint part designed as a joint ball, which is connected to the tower via the neck of the ball, slides, and where further a cover ring with a collar designed as a ball zone is arranged on the capsule mantle, and which apart from a remaining gap surrounds the ball joint as from joint cap the inside of the seal is sealed with a stuffing box.

Forbindelsesleddets indre ifølge norsk patentsøknad 822806, er beskyttet mot påvirkninger ved havbunnen ved hjélp av en i dets øvre område anordnet dykkeklokke som i forbindelse med dekselringens krage og en luftpolstring mellom dykkeklokken og kragen, danner en vannlås. Luftrommets avtetting som står under et trykk tilsvarende vanndybden, oppnås ved hjelp av en mellom det' bevegelige kuleledd og den faststående dek-sering anordnet, innstillbar pakningsboks. En fullstendig utskifting av pakningsboksens pakning er ikke mulig da luft-polstringen dermed ville bygges ned og vannet strømme inn. The interior of the connecting link, according to Norwegian patent application 822806, is protected against influences at the seabed by means of a diving bell arranged in its upper area which, in connection with the collar of the cover ring and an air padding between the diving bell and the collar, forms a water trap. The sealing of the air space, which is under a pressure corresponding to the water depth, is achieved by means of an adjustable packing box arranged between the movable ball joint and the fixed cover. A complete replacement of the stuffing box's gasket is not possible as the air cushioning would then break down and water would flow in.

Det er oppfinnelsens oppgave å utforme et forbindelses-ledd slik at driftssikkerheten økes ved forbedrede muligheter til vedlikehold og inspeksjon. It is the task of the invention to design a connecting link so that operational reliability is increased by improved possibilities for maintenance and inspection.

Løsningen av denne oppgave oppnås ved forbindelsesleddet av den innledningsvis beskrevne type ved at spalten mellom leddkulen og kragen i tillegg kan avsperres ved hjelp av en til den øvre ende av kragen anordnet tetning og ved at spalten kan sperres av ved forskyvning oppover av leddkulens i dens vertikale akse mot tetningen, samt at rommet mellom leddkulen og dykkeklokken er tilgjengelig f ra innsiden. The solution to this task is achieved with the connection joint of the type described at the outset by the fact that the gap between the joint ball and the collar can additionally be closed off by means of a seal arranged at the upper end of the collar and by the fact that the gap can be blocked off by upward displacement of the joint ball in its vertical axis towards the seal, and that the space between the joint ball and the diving watch is accessible from the inside.

For inspeksjon og vedlikeholdsarbeider av pakningsboksen, kan leddkulen forskyves i sin lengderetning ved innstilling av strekkleddet og ved etterinnstilling av lagrene til kulen ligger an mot tetningen. For å sikre den øvre tetnings funksjonsdyktighet også ved pendelbevegelser av leddkulen, er det fordelaktig at det på kraqen er anordnet en omløpende før-ingsring i hvilken den av sjøvannbestandig, elastisk materiale bestående tetningsring er sikkert opplagret mot forskyvning. Det med lufttrykk stående rom mellom leddkulen og dykkeklokken er tilgjengelig for en dykker når det ved kulehalsen, nedenfor dykkeklokkens tilkobling, foreligger en trykksluse. For inspection and maintenance work on the stuffing box, the joint ball can be displaced in its longitudinal direction by adjusting the tension joint and by readjusting the bearings until the ball rests against the seal. In order to ensure the functionality of the upper seal also during pendulum movements of the joint ball, it is advantageous that a circumferential guide ring is arranged on the collar in which the sealing ring consisting of seawater-resistant, elastic material is securely stored against displacement. The air-pressurized space between the joint ball and the diving watch is accessible to a diver when there is a pressure lock at the ball neck, below the diving watch's connection.

Den for forbindelsesleddet fordelaktige økning av driftssikkerheten, oppnås ved at rommet mellom leddkulen og dykkeklokken nå kan beveges og at det foreligger en andre tetningsanordning. Denne anordnings tetningsring består av et endelig profil og kan derfor lett utskiftes i motsetning til kjente uendelige hullegemetetninger. The increase in operational reliability, which is advantageous for the connection joint, is achieved by the fact that the space between the joint ball and the diving bell can now be moved and that there is a second sealing device. The sealing ring of this device consists of a finite profile and can therefore be easily replaced in contrast to known infinite hole sealings.

Oppfinnelsen beskrives på grunnlag av en på tegningen skjematisk vist utførelse som viser et snitt gjennom forbindelsesleddet . The invention is described on the basis of an embodiment shown schematically in the drawing, which shows a section through the connecting link.

Forbindelsesleddet 3 består av den indre leddkule 4 og den ytre leddkapsel 6. Leddkulen 4 er via kulehalsen 5 forbundet fast med forsyningstårnet 1 og opplagret på støtte-lagre 11 i leddkapselen 6.Leddkapselen 6 består av den syl-indriske kapselmantel som er forbundet med fundamentet 2 via fotplaten 9, og dekselringen 12 med dermed forbundet krage 13. Leddkulens 4 forbindelse med leddkapselen 6 foregår via strekkleddet 7 som på den ene side er forankret til fundamentet 2 via grunnplaten 9 og på den annen side er festet inn-stillbart i sin lengderetning i forsyningstårnets 1 fot. The connecting joint 3 consists of the inner joint ball 4 and the outer joint capsule 6. The joint ball 4 is via the ball neck 5 connected firmly to the supply tower 1 and stored on support bearings 11 in the joint capsule 6. The joint capsule 6 consists of the cylindrical capsule shell which is connected to the foundation 2 via the foot plate 9, and the cover ring 12 with the collar 13 connected therewith. The joint ball 4's connection to the joint capsule 6 takes place via the tension joint 7 which on the one hand is anchored to the foundation 2 via the base plate 9 and on the other hand is fixed adjustable in its longitudinal direction in the supply tower's 1 foot.

Leddkulens 4 tetning i forhold til leddkapselen 6 foregår fortrinnsvis ved hjelp av pakningsboksen 19. For sik-kerhetens skyld er en tetning 31 i tillegg anordnet ved kragens 13 øvre ende, idet denne tetning trer i funksjon ved en forskyvning av leddkulen 4 oppover i sin vertikale akse. For-skyvningen av leddkulen 4 foregår ved innstilling av strekkleddet 7 og ytterstilling av støttelageret 11, som med sine hydraulisk tilpassbare lagerskåler, sikrer at lagerskålene til enhver tid står i kontakt med leddkulens 4 overflate med samme anleggstrykk slik at hele lagersystemets funksjonsevne ikke på noe tidspunkt avbrytes. Ved anliggende tetning 31 kan det utføres vedlikeholdsarbeider på pakningsboksen 19. The joint ball 4 is sealed in relation to the joint capsule 6 preferably with the help of the packing box 19. For the sake of safety, a seal 31 is additionally arranged at the upper end of the collar 13, as this seal comes into operation when the joint ball 4 is displaced upwards in its vertical axis. The forward displacement of the joint ball 4 takes place by adjusting the tension joint 7 and the outer position of the support bearing 11, which with its hydraulically adjustable bearing cups, ensures that the bearing cups are in contact with the surface of the joint ball 4 at all times with the same contact pressure so that the functionality of the entire bearing system does not at any time is interrupted. If seal 31 is present, maintenance work can be carried out on packing box 19.

For inspeksjon kan en dykker via trykkslusen 33 gå i rommet 32 mellom leddkulen 4 og dykkeklokken 20. For inspection, a diver can enter the space 32 between the joint ball 4 and the diving watch 20 via the pressure lock 33.

Claims (3)

1. Leddforbindelse mellom et bevegelig forsyningstårn og en på havbunnen forankret, som fundament utformet bygningskonstruksjon i et offshoreanlegg, ved bruk at et kuleledd mellom forskyvningstårnets fot, som er avtettet mot vanninntrengning, hvor den til tårnets fot festede leddel holdes sammen med den til fundamentet fast forankrede leddel ved hjelp av et tilkuleleddets midtpunkt i alle retninger bevegelig strekkledd, samt en dykkeklokke som delvis omslutter forbindelsesleddet og hvor kuleleddets til tårnets fot festede leddel er opplagret i en leddkapsling som er utført som en sylindrisk kapslingsmantel med en til fundamentet fast forbundet fotplate og hvor flere støttelagre er anordnet i leddkapselen, på hvilke den som leddkule utformede leddel, som via kulens hals er forbundet med tårnet, glir, og hvor videre en dekselring med som kulesone utformet krage er anordnet på kapselmantelen, og som bortsett fra en resterende spalt omslutter kuleleddet som fra leddkapselens indre er avtettet med en pakningsboks, karakterisert ved at spalten mellom leddkulen (4) og kragen (13) i tillegg kan avsperres ved hjelp av en ved kragens (13) øvre ende anordnet tetning (31) og ved forskyvning av leddkulen (4) i sin vertikale akse oppover mot tetningen (31), og at rommet (32) mellom leddkulen (4) og dykkeklokken (20) er tilgjengelig fra innsiden.1. Joint connection between a movable supply tower and a building structure anchored to the seabed, designed as a foundation in an offshore facility, using a ball joint between the displacement tower's foot, which is sealed against water ingress, where the joint attached to the tower's foot is held firmly together with the one to the foundation anchored link by means of a tension link movable in all directions to the center of the ball joint, as well as a diving bell which partially encloses the connecting link and where the link attached to the base of the ball joint is stored in a joint casing which is designed as a cylindrical casing with a foot plate firmly connected to the foundation and where several support bearings are arranged in the joint capsule, on which the ball-shaped joint, which via the neck of the ball is connected to the tower, slides, and where further a cover ring with a collar designed as a ball zone is arranged on the capsule mantle, and which apart from a remaining gap encloses the ball joint which is sealed from the inside of the joint capsule with a packing box, characterized in that the gap between the joint ball (4) and the collar (13) can also be blocked off by means of a seal (31) arranged at the upper end of the collar (13) and by displacing the joint ball (4) in its vertical axis upwards towards the seal (31), and that the space (32) between the joint ball (4) and the diving watch (20) is accessible from the inside. 2. Ledd ifølge krav 1, karakterisert ved at tetningen (31) består av en omløpende føringsring og en deri mot forskyvning sikkert opplagret tetningsring av sjø-vannsbestandig, elastisk materiale.2. Joint according to claim 1, characterized in that the seal (31) consists of a circumferential guide ring and a sealing ring of sea-water-resistant, elastic material securely stored therein against displacement. 3. Ledd ifølge krav 1-2, karakterisert ved at en trykksluse (33) er anordnet på kulehalsen (5) nedenfor dykkeklokkens (20) tilkobling.3. Link according to claims 1-2, characterized in that a pressure lock (33) is arranged on the ball neck (5) below the diving bell (20) connection.
NO832995A 1982-08-20 1983-08-19 LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATION NO832995L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3230937A DE3230937C1 (en) 1982-08-20 1982-08-20 Ankle joint for connecting a movable supply tower of an off-shore system with a foundation

Publications (1)

Publication Number Publication Date
NO832995L true NO832995L (en) 1984-02-21

Family

ID=6171268

Family Applications (1)

Application Number Title Priority Date Filing Date
NO832995A NO832995L (en) 1982-08-20 1983-08-19 LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATION

Country Status (6)

Country Link
JP (1) JPS5934396A (en)
DE (1) DE3230937C1 (en)
FR (1) FR2569155A2 (en)
GB (1) GB2125864A (en)
NL (1) NL8302379A (en)
NO (1) NO832995L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170538A (en) * 1985-02-04 1986-08-06 Taylor Woodrow Const Ltd Flexible connections

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988144A (en) * 1957-09-10 1961-06-13 Baker Oil Tools Inc Method and apparatus for drilling and completing underwater well bores
DE2549859C3 (en) * 1975-11-06 1979-03-22 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Connection between an overwater platform or the like. and a foundation
DE2755592C2 (en) * 1977-12-14 1983-02-10 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Connection between an above water platform or the like and a foundation
DE3132711C1 (en) * 1981-08-19 1982-12-16 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Ankle joint for connecting a movable supply tower of an offshore system to a foundation

Also Published As

Publication number Publication date
NL8302379A (en) 1984-03-16
DE3230937C1 (en) 1983-10-20
JPS5934396A (en) 1984-02-24
GB8318379D0 (en) 1983-08-10
FR2569155A2 (en) 1986-02-21
GB2125864A (en) 1984-03-14

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