NO832995L - LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATION - Google Patents
LINKS TO RELATIONSHIP BETWEEN A MOVABLE SUPPLY STATION AND A FOUNDATIONInfo
- 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
Links
- 230000009189 diving Effects 0.000 claims description 10
- 210000000281 joint capsule Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000013535 sea water Substances 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
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
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)
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)
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)
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 |
-
1982
- 1982-08-20 DE DE3230937A patent/DE3230937C1/en not_active Expired
-
1983
- 1983-06-27 FR FR8310600A patent/FR2569155A2/en active Pending
- 1983-07-04 NL NL8302379A patent/NL8302379A/en not_active Application Discontinuation
- 1983-07-07 GB GB08318379A patent/GB2125864A/en not_active Withdrawn
- 1983-07-20 JP JP58131094A patent/JPS5934396A/en active Pending
- 1983-08-19 NO NO832995A patent/NO832995L/en unknown
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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