NO782795L - DEVICE FOR LOADING AND UNLOADING LIQUID GASKETS - Google Patents

DEVICE FOR LOADING AND UNLOADING LIQUID GASKETS

Info

Publication number
NO782795L
NO782795L NO782795A NO782795A NO782795L NO 782795 L NO782795 L NO 782795L NO 782795 A NO782795 A NO 782795A NO 782795 A NO782795 A NO 782795A NO 782795 L NO782795 L NO 782795L
Authority
NO
Norway
Prior art keywords
ship
line
floating body
rudder
specified
Prior art date
Application number
NO782795A
Other languages
Norwegian (no)
Inventor
Michael Lorenz
Original Assignee
Marine Service Gmbh
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 Marine Service Gmbh filed Critical Marine Service Gmbh
Publication of NO782795L publication Critical patent/NO782795L/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00Buoys
    • B63B22/02Buoys specially adapted for mooring a vessel
    • B63B22/021Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352Pipes
    • F17C2205/0364Pipes flexible or articulated, e.g. a hose
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033Small pressure, e.g. for liquefied gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146Two-phase
    • F17C2225/0153Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033Small pressure, e.g. for liquefied gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0105Ships
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0118Offshore
    • F17C2270/0123Terminals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0118Offshore
    • F17C2270/0126Buoys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Reciprocating Pumps (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Description

Anordning for lasting og lossing av tankskip for flytende gass.Device for loading and unloading liquefied gas tankers.

På grunn av den okende energiknapphet og de store prisstignin-ger på energisektoren, gjoresi dag store anstrengelser for å Due to the increasing scarcity of energy and the large price increases in the energy sector, great efforts are currently being made to

ta i bruk også slike energikilder som hittil ikke har vært oko-nomisk eller teknisk drivbare. Dette gjelder også utnyttelsen av olje- og gasskilder og transport og raffinering av olje og gass i havområder med systemer som enten er flytende eller forankret i havbunnen. Hvis.slike produksjonssteder ikke kan koples til forbruks- eller omlastingssentra, må produktene som er also use energy sources that have not been economically or technically feasible up to now. This also applies to the utilization of oil and gas sources and the transport and refining of oil and gas in sea areas with systems that are either floating or anchored to the seabed. If.such production sites cannot be connected to consumption or transshipment centres, the products that are

behandlet for transport, lastes ombord i tankskip og fraktes videre med disse. Lasting og lossing av tankskip i havner og i rolig sjo er riktignok teknisk sett upåklagelig lost, men den praktiske gjennomforing krever stor dyktighet, hvis store tankskip som skal lasses eller losses må manovreres. processed for transport, loaded on board tankers and transported on with these. Loading and unloading of tankers in harbors and in calm seas is technically impeccable, but the practical implementation requires great skill, if large tankers to be loaded or unloaded have to be manoeuvred.

Vanskelighetene oker betydelig når lastingen skal foregå i åpen sjo, især i grov sjo. De problemer som oppstår i denne forbindelse, især ved lasting av tankere for flytendegjort gass, er hittil ikke eller i det minste utilfredsstillende lost. I videre forstand gjelder dette også lasting av oljetankskip. I over-ensstemmelse med teknikkens stilling, må tankskipet enten seiles svært nær inntil produksjons- og lagringsplattformen med tilsvarende kollisjonsrisiko eller seiles inntil en separat boye med overforingsinnretninger som bærer tilkoplingspunktet for tilfor-selsledningen. I begge tilfelle oppstår det betydelige problemer, idet det ved grov sjo oppstår tilsvarende store relativbevegel-ser mellom de to ledningssystemer som skal koples sammen. Det vil uten videre forstås at de nodvendige tilkoplinger bare kan The difficulties increase significantly when loading is to take place in open seas, especially in rough seas. The problems that arise in this connection, especially when loading tankers for liquefied gas, have so far not been resolved, or at least not satisfactorily resolved. In a broader sense, this also applies to the loading of oil tankers. In accordance with the state of the art, the tanker must either be sailed very close to the production and storage platform with a corresponding risk of collision or be sailed to a separate buoy with transfer devices that carry the connection point for the supply line. In both cases, significant problems arise, as in the case of rough seas correspondingly large relative movements occur between the two wiring systems that are to be connected together. It will be understood without further ado that the necessary connections can only

opprettes pålitelig med stor dyktighet og at uhell ofte ikke lar seg unngå. is created reliably with great skill and that accidents are often unavoidable.

I IN

i in

i Det tekniske problem ligger således i tilveiebringelse av en i i ' anordning- med hvilken store tankskip, især tankskip for flyten-' degjort gass, kan lastes uavhengig av sjogangen i åpen sjo. En slik anordning kan selvsagt også benyttes omvendt, dvs. til lossing. The technical problem thus lies in the provision of a device with which large tankers, especially tankers for liquefied gas, can be loaded independently of the seaway in open seas. Such a device can of course also be used in reverse, i.e. for unloading.

For å lose denne oppgave går oppfinnelsen ut fra en anordning for lasting og lossing, især av tankskip for flytendegjort gass i åpen sjo, ved bruk av en ledning som er lagt i vannet og et flytende legeme som er anbrakt på den ledningsende som vender mot skipet og som er forsynt med organer for tilkopling til skipets ledninger. Oppgaven loses ved at anordningen, er utfort slik at ballastorganer holder ledningen i en bestemt dybde og at ledningen i den ende som vender mot skipet er tilsluttet et ror som holdes i det vesentlige vertikalt av flytelegemet. Ifolge oppfinnelsen er roret videre begrenset fleksibelt og flytelegemet er utstyrt med rullefendere. To solve this task, the invention is based on a device for loading and unloading, in particular of tankers for liquefied gas in open sea, using a line that is laid in the water and a floating body that is placed on the end of the line that faces the ship and which are provided with means for connection to the ship's cables. The task is solved by the device being laid out so that ballast elements hold the cable at a certain depth and that the cable at the end facing the ship is connected to a rudder which is held essentially vertically by the floating body. According to the invention, the rudder is further limited in flexibility and the floating body is equipped with roller fenders.

Anordningen ifolge oppfinnelsen gjor det mulig at et skip kan fortoyes til plattformen som danner produksjons- eller omlastingspunktet med baugtrosser i en avstand på minst en halv skipslengde, hvorved trossene ved innhaling lett kan holdes stramme mot plattformen. Det kan videre uten vanskelighet oppnås at hele systemet som omfatter plattformen og skipet, under lasting retter seg opp med vinden i avhengighet av vind- og bolgebeve-gelser om et festepunkt som ligger eksentrisk i forhold til nevnte system. Overleverings- hhv. overtagningsledningene som må anordnes mellom plattformen og skipet ligger i det vesentlige utenfor sjogangens påvirkning, slik at slitasje og brudd og den dermed forbundne fare for uhell unngås. Ledningen forblir i det vesentlige på samme dybde under hele manovreringen, også under til- og fråkopling av skipsledningen, og bare flytelegemet, som fores frem til skipet med egen fremdrift eller av en slepebåt, blir loftet opp av vannet ved skipet, hvorved roret, som folge av sin begrensede fleksibilitet og på grunn av strekket, som virker i nedre ende som folge av ledningstilkoplingen, boyes noe bort fra skipsveggen. Når flytelegemet er loftet opp av vannet, kan The device according to the invention makes it possible for a ship to be moored to the platform that forms the production or transshipment point with bow lines at a distance of at least half the ship's length, whereby the lines can easily be kept tight against the platform when hauling in. It can also be achieved without difficulty that the entire system, which includes the platform and the ship, aligns with the wind during loading in dependence on wind and wave movements about an attachment point that is eccentric in relation to said system. Delivery or the take-over cables that must be arranged between the platform and the ship are essentially outside the influence of the seaway, so that wear and tear and the associated risk of accidents are avoided. The cable remains essentially at the same depth during the entire manoeuvring, also during connection and disconnection of the ship's cable, and only the floating body, which is guided to the ship under its own propulsion or by a tugboat, is lifted out of the water by the ship, whereby the rudder, which as a result of its limited flexibility and due to the stretch, which acts at the lower end as a result of the cable connection, it is bowed somewhat away from the ship's wall. When the floating body is lifted out of the water, can

koplingsstykket på flytelegemet koples.til en skipsledning, upå-virket av sjogangen, hvorpå overleveringen kan settes i gang. the connecting piece on the floating body is connected to a ship's cable, unaffected by the seaway, after which the handover can be started.

1 1

: Anordningen ifolge oppfinnelsen kan utformes slik at ledningen i og flytelegemet som befinner seg på dennes utleveringsende, til enhver tid bare kjores ut for en lasteoperasjon. For dette formål er ledningen utformet som slangeledning. Når anordningen : The device according to the invention can be designed so that the line in and the floating body which is located at its delivery end are only driven out for a loading operation at any time. For this purpose, the cable is designed as a hose cable. When the device

ikke er i bruk, tas.ledningen og flytelegemet opp av vannet og anordnes og oppbevares f.eks. på plattformen som danner produksjons- eller omlastingspunktet, ovenfor vannet. are not in use, the line and the float are taken out of the water and arranged and stored, e.g. on the platform that forms the production or transshipment point, above the water.

Ytterligere fordeler og trékk ved oppfinnelsen vil fremgå av kravene og av nedenstående beskrivelse og tegningen, hvor oppfinnelsen er beskrevet hhv. vist ved utforelseseksempler. Fig. 1 viser en anordning ifolge oppfinnelsen skjematisk og i perspektiv, idet anordningen forbinder en produksjons- eller lagringsplattform som er forankret i åpen sjo med et skip som skal lastes. Fig. 2 og 3 viser den ende av anordningen som befinner seg i retning av skipet ved innledningen av lasting. Fig. 1 viser en plattform 20, som flyter avlands og bærer et anlegg for flytendegjoring av jordgass og en lagringsbeholder for den flytendegjorte gass. Plattformen kan f.eks. via en ledning 12 være tilknyttet et borehullhode 10, som er markert med en boye 14. Punkt 10 er samtidig forankringssentret med stag 18, som overtar strekket som utoves på punkt 11 ovenfor anordningen 10 av trossene 16. Skipet 22 er fortoyd til plattformen med. Further advantages and features of the invention will be apparent from the claims and from the following description and drawing, where the invention is described or shown by embodiment examples. Fig. 1 shows a device according to the invention schematically and in perspective, the device connecting a production or storage platform which is anchored in open sea with a ship to be loaded. Fig. 2 and 3 show the end of the device which is in the direction of the ship at the beginning of loading. Fig. 1 shows a platform 20, which floats offshore and carries a plant for liquefaction of natural gas and a storage container for the liquefied gas. The platform can e.g. via a wire 12 be connected to a borehole head 10, which is marked with a buoy 14. Point 10 is at the same time the anchoring center with stay 18, which takes over the stretch as extended at point 11 above the device 10 of the cables 16. The ship 22 is moored to the platform with.

trosser 24, slik at det opprettholdes en minsteavstand på en halv skipslengde mellom skipet 22 og plattformen 20. Av fig. 1 fremgår at systemet som består av plattformen 20 og skipet 22 kan svinge om punkt 10. Faren for kollisjon mellom skipet 22 og plattformen 20 er utelukket ved en slik avstand og anordning. tackles 24, so that a minimum distance of half a ship's length is maintained between the ship 22 and the platform 20. From fig. 1 shows that the system consisting of the platform 20 and the ship 22 can swing about point 10. The danger of collision between the ship 22 and the platform 20 is ruled out by such a distance and arrangement.

Den avstand mellom skip 22 og plattform 20 som må velges av sik-kerhetsgrunner, utelukker dog også at det benyttes en vanlig ledningsslange til lasting av skipet 22. På grunn av anordnin-gens bevegelighet kan det heller"ikke benyttes en vanlig rorled-ning av stive ror. Ifolge oppfinnelsen benyttes derfor en led-i The distance between ship 22 and platform 20, which must be chosen for safety reasons, also precludes the use of a normal cable hose for loading the ship 22. Due to the device's mobility, a normal rudder line of rigid rudders According to the invention, a led-i is therefore used

ning, fortrinnsvis en ledningsslange 26, som er forsynt med !ballastorganer på en slik måte at ledningen holdes i en bestemt! ning, preferably a lead hose 26, which is provided with !ballast means in such a way that the lead is held in a specific!

'vanndybde, hvor den i det vesentlige ligger utenfor påvirkning 1 fra sjogangen. I det viste eksempel er ledningen 26 forsynt med lodd e.l. og via tau 34 forbundet med oppdriftslegemer 32, som i sin tur er innbyrdes forbundet med trosser 36, slik at delene 26,32,34,36 danner et system som flyter i en bestemt vanndybde. I den ende som vender mot skipet er ledningen 26 koplet til et ror 28, som i det vesentlige holdes vertikalt av et flytelege-me 30. Tilkoplingen er opprettet via en svivelforbindelse. For lasting blir. flytelegemet 30 loftet opp av vannet med loftean-ordninger ombord på skipet 22, slik at koplingsstykket i ovre ende av roret 28 ligger utenfor sjogangens påvirkning. Deretter kan tilkoplingen av skipsledningene til rorets 28 ovre koplingsstykke opprettes med automatisk koplende forbindelser og lasting kan settes i gang. 'water depth, where it is essentially outside the influence 1 of the viewing channel. In the example shown, the wire 26 is provided with solder etc. and via rope 34 connected to buoyancy bodies 32, which in turn are interconnected with ropes 36, so that the parts 26,32,34,36 form a system that floats in a specific water depth. At the end facing the ship, the line 26 is connected to a rudder 28, which is essentially held vertically by a floating body 30. The connection is made via a swivel connection. For loading will be. the floating body 30 lofted out of the water with loft-an arrangements on board the ship 22, so that the coupling piece at the upper end of the rudder 28 is outside the influence of the seaway. The connection of the ship's cables to the rudder's 28 upper connection piece can then be established with automatically connecting connections and loading can be started.

Fig. 2 og 3 viser en utforelsesform som er modifisert med hen-blikk på slangen. I dette tilfelle er det anordnet en slange 26', og parallelt med og nedenfor denne forloper to ballastslanger 52. Ballastslangene 52 ender i en forbindelsesboyle 54, via hvilken slangenes indre rom også står.i forbindelse med hverandre. Det er således mulig å endre fyllingen av ballastslangene 52 og dermed ballastverdien fra plattformen 20 ved pumping av væsker med annen sammensetning til ballastslangene. Ballastslangene 52 er ved hjelp av tau 53 eller steg forbundet med hverandre og med slangen 25, som derved belastes jevnt over det hele. Fig. 2 and 3 show an embodiment which has been modified with regard to the hose. In this case, a hose 26' is arranged, and two ballast hoses 52 run parallel to and below this. The ballast hoses 52 end in a connecting pipe 54, via which the inner spaces of the hoses are also connected to each other. It is thus possible to change the filling of the ballast hoses 52 and thus the ballast value from the platform 20 by pumping liquids with a different composition to the ballast hoses. The ballast hoses 52 are connected to each other and to the hose 25 by means of ropes 53 or steps, which are thereby loaded evenly over the whole.

Slangen 26' er via et koplingsstykke 38' forbundet med nedre ende av roret 28. Koplingsstykket 38' inneholder minst en svivel-, kopling som sorger for at slangen med sitt koplingsstykke forblir bevegelig overfor roret 28. Fortrinnsvis, se fig. 3, omfatter meilomstykket 38' et stag 39, via hvilket boylen 54 er fast og stivt forbundet med slangekoplingen. The hose 26' is via a coupling piece 38' connected to the lower end of the rudder 28. The coupling piece 38' contains at least one swivel coupling which ensures that the hose with its coupling piece remains movable relative to the rudder 28. Preferably, see fig. 3, the intermediate piece 38' comprises a stay 39, via which the boylen 54 is firmly and rigidly connected to the hose coupling.

Roret 28 er omgitt av et beskyttelsesror 29, som er festet på nedsiden av flytelegemet 30. Rorene 29 og 28 har begrenset fleksibilitet, slik at det ved utovelse av strekk mot nedre tilknytningsende kan oppstå en lett boyning. Roret 28 er fast anordnet The rudder 28 is surrounded by a protective rudder 29, which is attached to the underside of the floating body 30. The rudders 29 and 28 have limited flexibility, so that a slight boying can occur when stretching towards the lower connection end. The rudder 28 is fixed

i flytelegemet 30 og rager opp fra flytelegemet med sin ovre tilknytningsende 50 som er omgitt av en beskyttende krage 48. in the floating body 30 and protrudes from the floating body with its upper connecting end 50 which is surrounded by a protective collar 48.

Flytelegemet 30 kan være forsynt med her ikke viste fremdrifts-! The floating body 30 can be provided with a propulsion system not shown here.

i. in.

I 1 1I anordninger. Vanligvis vil det vare tilstrekkelig med et flyte-legeme som slepes med en båt frem til skipet 22, idet en båt er nodvendig også for trosse-overforing. I 1 1I devices. Usually it will be sufficient to have a floating body that is towed with a boat up to the ship 22, as a boat is also necessary for cable transfer.

Flytelegemet 30 er fortrinnsvis utfort i likhet med et skips-skrog og har storre utstrekning i lengderetningen, som i fig. 2 forloper horisontalt fra venstre mot hoyre, enn på tvers, se også fig. 3. På motstående ender er det anbrakt dyne 46 for be-festigélse av trosser 44 fra skipet 22. Ved hjelp av trossene 44 og et eller to spill 45, kan flytelegemet 30 loftes så hoyt The floating body 30 is preferably extended like a ship's hull and has a greater extent in the longitudinal direction, as in fig. 2 runs horizontally from left to right, rather than across, see also fig. 3. On the opposite ends, a cushion 46 is placed for attaching ropes 44 from the ship 22. With the help of the ropes 44 and one or two winches 45, the floating body 30 can be lifted as high as

opp av vannet at det forblir utenfor bolgetoppendes rekkevidde og ligger i ro i anlegg mot skipets yttervegg. Flytelegemet 30 out of the water so that it remains out of reach of the top of the hull and rests in contact with the ship's outer wall. The floating body 30

er for dette formål forsynt med rullefendere 40,41, som er av-stottet på flytelegemet via et trekantfeste 42 og i sin tur mu-liggjor avstottingen mot skipets 22 yttervegg uten at det opp-trer skader. is for this purpose provided with roller fenders 40,41, which are supported on the floating body via a triangular attachment 42 and in turn enable the support against the outer wall of the ship 22 without damage occurring.

Etter at flytelegemet 30 er loftet opp, se også fig. 1, vil skipet og flytelegemet befinne seg i en statisk definert stil-, ling i forhold til hverandre. I denne stilling kan skipets ledningsnett uten vanskeligheter koples til koplingsstykket på flytelegemet ved kjente anordninger og uten vanskeligheter. Når lasten er fort ombord gjennom ledningen 26 og roret 28, koples skipets ledningsnett igjen fra- roret 28, flytelegemet slippes ned langs skipsveggen og trossene 44 lbsnes. Flytelegemet 30 og dermed også ledningen 26 hhv. 26' kan deretter fores tilbake til plattformen 20, hvor den fleksible slange- hhv. ledningsfor-bindelse mellom flytelegemet og plattformen og selve flytelegemet tas opp av vannet og plasseres ovenfor vannlinjen. I stedet for en slange for ledningen 26 hhv. 26' kan det også benyttes en ledning som består av et tilsvarende fleksibelt ror eller fleksibelt sammenkoplede rbrlengder. After the floating body 30 has been lifted up, see also fig. 1, the ship and the floating body will be in a statically defined position in relation to each other. In this position, the ship's wiring harness can be connected to the connector on the floating body using known devices and without difficulty. When the cargo is quickly on board through the cable 26 and the rudder 28, the ship's wiring harness is again disconnected from the rudder 28, the floating body is lowered along the ship's wall and the ropes 44 are lifted. The floating body 30 and thus also the line 26 or 26' can then be fed back to the platform 20, where the flexible hose or cable connection between the floating body and the platform and the floating body itself is taken out of the water and placed above the waterline. Instead of a hose for the wire 26 or 26', a line consisting of a corresponding flexible tube or flexibly connected tube lengths can also be used.

i in

Claims (11)

1. Anordning for lasting og lossing, især av tankskip for flytende gass i åpen sjo ved bruk av en ledning som er lagt gjennom vannet og et flytelegeme,som er anordnet på den ende av ledningen som vender mot skipet og som er forsynt med organer for tilknytning til skipsledninger, karakterisert ved at ballastorganer (26,32; 26',52) holder.ledningen (26; .26') i en bestemt dybde og at ledningen i den ende som vender mot skipet er koplet til et ror (28) som holdes i det vesentlige vertikalt av flytelegemet (30).1. Device for loading and unloading, especially of tankers for liquefied gas in open seas using a line laid through the water and a floating body, which is arranged on the end of the line facing the ship and which is provided with organs for connection to ship lines, characterized in that ballast means (26,32; 26',52) hold the line (26; .26') at a specific depth and that the line at the end facing the ship is connected to a rudder (28) which is held substantially vertically by the floating body (30). 2. Anordning som angitt i krav 1, karakterisert ved at roret (28) er begrenset fleksibelt.2. Device as specified in claim 1, characterized in that the rudder (28) is limited in flexibility. 3. Anordning som angitt i krav 1 eller 2, karakterisert ved . at roret (28) er omgitt av et beskyttende ror (29) som fra flytelegemet strekker seg over storste-, delen av roret (28).3. Device as specified in claim 1 or 2, characterized by . that the rudder (28) is surrounded by a protective rudder (29) which extends from the floating body over the largest part of the rudder (28). 4. Anordning som angitt i et av foranstående krav, karakterisert vsd at ledningen er forbundet med roret (28) via en universalkopling (38;38').4. Device as specified in one of the preceding claims, characterized in that the line is connected to the rudder (28) via a universal coupling (38; 38'). 5. Anordning som angitt i et av foranstående krav, karakterisert ved at ledningen er en slangeledning (26; 26' ) .5. Device as specified in one of the preceding claims, characterized in that the line is a hose line (26; 26'). 6. Anordning som angitt i krav 1-5, karakterisert ved minst en under ledningen (26') anordnet ballastslange (52), som med jevne mellomrom er forbundet med ledningen.6. Device as specified in claims 1-5, characterized by at least one ballast hose (52) arranged under the line (26'), which is connected to the line at regular intervals. 7. Anordning som angitt i krav 6, karakterisert ved at ledningen (26') er forbundet med to innbyrdes parallelle og under ledningen forlopende ballastslanger (52) til en trekant med i tverrsnitt like sider og at de to ballastslangene er forbundet via en ledningsboyle (54) i den ende som ligger ved flytelegemet (30). I, I 7. Device as set forth in claim 6, characterized in that the line (26') is connected to two mutually parallel ballast hoses (52) running below the line to form a triangle with equal sides in cross-section and that the two ballast hoses are connected via a cable tie ( 54) at the end which is at the floating body (30). IN, IN 8. Anordning som angitt i krav 1-5, karakteri - 'sert ved at det på ledningen (26) fordelt over dennes lengde, er anordnet ballastorganer, som utlignes ved en rad av flytelegemer (32), som er anordnet ovenfor ledningen og forbundet med denne via tau (34).8. Device as specified in claims 1-5, characterized in that on the wire (26) distributed over its length, ballast elements are arranged, which are offset by a row of floating bodies (32), which are arranged above the line and connected to it via rope (34). 9. Anordning som angitt i et av foranstående krav, karakterisert ved at flytelegemet (30) er forsynt med rullefendere (40,41).9. Device as specified in one of the preceding claims, characterized in that the floating body (30) is provided with roller fenders (40,41). 10. Anordning som angitt i et av foranstående krav, karakterisert ved at ovre ende av roret (28) rager opp over flytelegemet (30) og er forsynt med organer (50, 48) for tilkopling av.en automatisk koplende ledningskoplings-anbrdning.10. Device as specified in one of the preceding claims, characterized in that the upper end of the rudder (28) projects above the floating body (30) and is provided with organs (50, 48) for connection of an automatically connecting cable connection device. 11. Fremgangsmåte for overlevering av flytende last i åpen sjo, spesielt til lasting av en tanker for flytende gass, via en ledning, som forloper fra en produksjons- eller forrådsplatt-form og til et legeme som flyter i vannet og til hvilket kop-linger for skipets ledningssystem koples, karakterisert ved at skipet forbindes med plattformen med trosser, idet det opprettholdes en avstand på minst en halv skipslengde, at ledningen, som ender ved flytelegemet via et ror som i det vesentlige står vertikalt i vannet, deretter ved hjelp av flytelegemet fores til skipet og derved, samt under påfolgende arbeid holdes på en i det vesentlige konstant vanndybde, som ligger utenfor sjogangens innflytelse, og at flytelegemet der-etterloftes opp av vannet fra skipet og holdes i en fast stilling i forhold til skipet, ovenfor sjogangshoyde, hvorpå til-knytningen mellom skipets ledningssystem og ledningens rorende opprettes.11. Procedure for the delivery of liquid cargo in the open sea, in particular for loading a tanker for liquid gas, via a line, which runs from a production or storage platform and to a body floating in the water and to which connections for the ship's wiring system is connected, characterized by the ship being connected to the platform with ropes, while a distance of at least half the ship's length is maintained, that the cable, which ends at the floating body via a rudder that is essentially vertical in the water, then with the help of the floating body fed to the ship and thereby, as well as during subsequent work, kept at an essentially constant water depth, which lies outside the influence of the gangway, and that the floating body is then lifted out of the water from the ship and held in a fixed position in relation to the ship, above gangway height, whereupon the connection between the ship's wiring system and the cable's rudder is established.
NO782795A 1977-08-18 1978-08-17 DEVICE FOR LOADING AND UNLOADING LIQUID GASKETS NO782795L (en)

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DE19772737574 DE2737574A1 (en) 1977-08-18 1977-08-18 DEVICE FOR LOADING AND UNLOADING LIQUID GAS TANKERS

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1211702A (en) * 1983-06-27 1986-09-23 Don A. Bresie Method and system for producing natural gas from offshore wells
US5582252A (en) * 1994-01-31 1996-12-10 Shell Oil Company Hydrocarbon transport system
GB2328196B (en) * 1997-08-12 1999-08-11 Bluewater Terminal Systems Nv Fluid transfer system
BR122019024417B1 (en) 2008-11-20 2021-05-11 Single Buoy Moorings Inc hydrocarbon transfer arrangement for fluid transfer
CN112193378B (en) * 2020-11-09 2024-09-10 威海海洋职业学院 Aquatic product processing ship

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DE2737574A1 (en) 1979-03-01

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