DK154696B - ARRANGEMENT FOR CONTROL OF A PIPELINE SHIP - Google Patents
ARRANGEMENT FOR CONTROL OF A PIPELINE SHIP Download PDFInfo
- Publication number
- DK154696B DK154696B DK357475AA DK357475A DK154696B DK 154696 B DK154696 B DK 154696B DK 357475A A DK357475A A DK 357475AA DK 357475 A DK357475 A DK 357475A DK 154696 B DK154696 B DK 154696B
- Authority
- DK
- Denmark
- Prior art keywords
- ship
- sections
- cables
- chains
- arrangement
- Prior art date
Links
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
- B63B35/03—Pipe-laying vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H15/00—Marine propulsion by use of vessel-mounted driving mechanisms co-operating with anchored chains or the like
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Electric Cable Installation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Description
DK 154696BDK 154696B
Opfindelsen vedrører et arrangement til styring af et rørlægningsskib med en i samme retning som en af skibets hovedakser virkende, spilbetjent forankrings- __ ____indretning, og stort set vinkelret derpå virkende 5 fremdrivningsorganer.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an arrangement for controlling a pipe laying vessel having a spindle-operated anchoring device operating in the same direction as one of the ship's main axes, and substantially perpendicular to it acting on propulsion means.
Et fra U.S.A. patentskrift nr. 3 715 890 kendt arrangement har i rørlægningsskibets længderetning virkende fremdrivningsskruer og i skibets tværretning virkende forankringsindretninger. Dette betyder dog, at 10 forankringerne må udløses hver gang, der er lagt et bestemt afsnit, og at rørlægningsskibet påny må forankres på et andet sted. Dermed er det kun muligt at foretage en skridtvis udlægning af rørledningen, og mellem de enkelte udlægningsskridt er det nødvendigt at 15 foretage omfangsrige og kostbare arbejder, der medfører en betydelig begrænsning af udlægningshastigheden.One from U.S.A. Patent No. 3,715,890 known arrangement has propulsion screws acting in the longitudinal direction of the pipe laying vessel and in the transverse direction of the ship anchoring devices. However, this means that the 10 anchorages must be released each time a certain section has been laid and that the plumbing vessel must be anchored again at another location. Thus, it is only possible to carry out a step-by-step laying of the pipeline, and between the individual laying steps it is necessary to undertake extensive and expensive work, which results in a considerable limitation of the laying speed.
Desuden består mellem de enkelte udlægningsskridt, i hvilke i det mindste nogle af forankringspunkterne er frigivet, en betydelig fare for, at rørledningen, der 20 er under udlægning, skal blive beskadiget eller revet over som følge af ukontrollerede bevægelser af skibet.In addition, between the individual laying steps, in which at least some of the anchorage points are released, there is a considerable danger that the pipeline, which is under laying, will be damaged or torn over as a result of uncontrolled movements of the ship.
Det er opfindelsens opgave at angive et arrangement af den ovenfor beskrevne art, med hvilket der f.eks. også ved forholdsvis store vanddybder hurtigt 25 kan udlægges rørledninger. Denne opgave løses ifølge opfindelsen med et arrangement af den i indledningen angivne art, der er ejendommelig ved, at forankringsindretningen er anbragt i skibets længderetning, og fremdrivningsorganerne er anbragt, så de tilnærmelses-30 vis virker i skibets tværretning, og at forankringsindretningen består af to lange, fra for mod agter gennemgående med forreste og bageste afsnit på havbunden beliggende kabler eller kæder, hvis endeafsnit holdes i havoverfladen ved hjælp af bøjer, og hvis 35 midterafsnit i dækområdet er ført over spillene parallelt med hinanden og med skibets sider, hvorhos 2It is the object of the invention to provide an arrangement of the kind described above with which e.g. also at relatively large water depths 25 pipelines can be laid. This task is solved according to the invention with an arrangement of the kind specified in the introduction, characterized in that the anchoring device is arranged longitudinally of the ship and the propulsion means are arranged so that they act approximately in the transverse direction of the ship and that the anchoring device consists of two long, front-to-rear, continuous with front and rear sections of the seabed located cables or chains, whose end sections are held in the sea surface by buoys and whose 35 center sections in the deck area are passed across the spillways parallel to each other and to the sides of the ship, where 2
DK 154696 BDK 154696 B
afsnittene af kablerne eller kæderne foran skibets bov er placeret, så de divergerer i en vinkel på nogle få grader i forhold til skibets længdeakse, og kablerne eller kæderne har en sådan længde, at de på havbunden 5 beliggende afsnit -jdanner forankringen som" følge"" af '~~ ' ' deres friktion. _the sections of the cables or chains in front of the bow of the ship are positioned to diverge at an angle of a few degrees with respect to the longitudinal axis of the ship, and the cables or chains are such that the sections located on the seabed 5 form the anchorage as "as a result" "of '~~' 'their friction. _
Ved arrangementet ifølge” opfindelsen_kan rør lægges kontinuerligt selv på store vanddybder, da rørlægnings fartøjet <&øm følge .af anvendelsen af kabel-10'~længder med hensigtsmæssige dimensioner kan bevæges over en længere strækning, øg kablernes forankringspunkter på havbunden kan forskydes kontinuerligt. Den skridtvise tilføjelse af et nyt kabelafsnit eller indhaling af et overflødigt kabelafsnit er fuldstændig 15 uafhængigt af denne kontinuerlige forskydning af forankringspunktet. Et fra U.S.A. patentskrift nr.In the arrangement according to the invention, pipes can be laid continuously even at great depths of water, as the pipe laying vessel can be moved over a longer distance, due to the use of cable-10 'lengths with appropriate dimensions, increasing the anchoring points of the cables on the seabed can be displaced continuously. The stepwise addition of a new cable section or retrieval of a redundant cable section is completely independent of this continuous displacement of the anchor point. One from U.S.A. patent specification no.
3 546 888 kendt kabellægningsskib har en styring, i hvilken en på særlig måde udformet brod kan påvirke kablets afløb i en bestemt retning. Der findes dog 20 ingen forankring til bunden.3 546 888 known cable laying vessels have a guide in which a specially shaped bridge can influence the drain of the cable in a certain direction. However, there are 20 no anchors to the bottom.
I ER-patentskrift nr. 413 859 beskrives en kædetrukket færge til krydsning af floder med stejle flodbredder. Denne kendte færge er elastisk forankret til begge bredder ved hjælp af til såvel boven som 25 hækken fastgjorte kæder. Disse kæder kan ganske vist ligge på flodbunden, men tjener dog i dette tilfælde ikke til forankring eller kursstabilisering af færgen.ER Patent No. 413,859 describes a chain-drawn ferry for crossing rivers with steep riverbeds. This known ferry is elastically anchored to both widths by chains attached to both the ridge and the hedge. Although these chains may lie on the river bottom, they do not serve to anchor or stabilize the ferry in this case.
I DE-patentskrift nr. 507 951 beskrives et kædebugse-ringsfartøj med en omløbende, endeløs kæde, der på 30 samme måde som kæden i en larvefodstraktor tjener til fremdrift af skibsskroget. Denne kæde er dog ikke bestemt til fastlæggelse eller ændring af skibets kurs, idet der hertil findes et ror.DE Patent Specification No. 507,951 discloses a chain towing vessel with a continuous, endless chain which serves in the same manner as the chain in a crawler foot tractor to propel the hull. However, this chain is not intended to determine or change the ship's course, as there is a helm.
I modsætning hertil påvirkes rørlægningsfartøjet 35 med arrangementet ifølge opfindelsen af to forskellige sæt kræfter, der stort set står vinkelret på hinanden,In contrast, with the arrangement according to the invention, the plumbing vessel 35 is actuated by two different sets of forces which are substantially perpendicular to each other.
DK 154696 BDK 154696 B
3 idet modkraften udøves af trækket, der opstår i kablerne eller kæderne under udlægningen og af havstrømninger, der forløber mere eller mindre vinkelret herpå.3 in that the counter force is exerted by the tension which arises in the cables or chains during the laying and by ocean currents which run more or less perpendicular thereto.
I en foretrukket udførelsesform består kablerne 5 eller kæderne af enkelte afsnit, der er indrettet til at adskilles fra hinanden. Derved kan hjælpeskibe transportere et kabel- eller kædeafsnit fra hækområdet til boven og tilføje det til afsnittet ved boven.In a preferred embodiment, the cables 5 or chains consist of individual sections arranged to be separated from each other. In this way, auxiliary vessels can transport a cable or chain section from the stern area to the stern and add it to the stanchion section.
Opfindelsen vil nu blive forklaret nærmere 10 ved hjælp af et eksempel på en udførelsesform og med henvisning til tegningen, på hvilken fig. 1 er et længdesnit i et arrangement ifølge opfindelsen, fig. 2 et snit svarende til fig. 1, 15 fig. 3 et planbillede af det 'i fig. 2 viste arrangement, fig. 4 et sidebillede af en ponton, og fig. 5 et planbillede af det i fig. 4 viste arrangement.The invention will now be explained in more detail 10 by way of example of one embodiment and with reference to the drawing, in which 1 is a longitudinal section of an arrangement according to the invention; FIG. 2 is a sectional view similar to FIG. 1, FIG. 3 is a plan view of the FIG. 2; FIG. 4 is a side view of a pontoon; and FIG. 5 is a plan view of the embodiment of FIG. 4.
20 Som vist i fig. 1 flyder på havoverfladen 1 en rørponton eller et rørlægningsskib, der i det følgende kortere betegnes som et skib, og ved hjælp af hvilket en rørlængde 4 skal udlægges på havbunden 2. Skibet 3 har kabler eller kæder 5, der udøver 25 et træk i længderetningen (skibet 3's bevægelsesretning). Disse kabler har bov- og hækafsnit, henholdsvis 6 og 10 af hensigtsmæssig længde beliggende på havbunden, hvor de som følge af deres friktion sikrer en stabil forankring.20 As shown in FIG. 1 floats on the sea surface 1 a pipe pontoon or a pipe laying ship, which in the following is shorter termed a ship and by which a pipe length 4 is to be laid out on the seabed 2. The ship 3 has cables or chains 5 which exerts a longitudinal pull. (the direction of movement of the ship 3). These cables have bow and stern sections, 6 and 10, respectively, of appropriate length located on the seabed, where as a result of their friction they ensure a stable anchorage.
30 Endeaf snittene 7 og 11 af henholdsvis bov- og hækafsnittene, henholdsvis 6 og 10, er fastgjort ved deres ender til bøjer, henholdsvis 8 og 12. Kablerne 5 forløber i en omtrentlig kædelinie 9 fra skibet 3 til havbunden 2.30 End of sections 7 and 11 of the bow and stern sections, 6 and 10, respectively, are attached at their ends to buoys, 8 and 12. The cables 5 extend in an approximate chain line 9 from the ship 3 to the seabed 2.
35 Skibet 3 udsættes i rørlægningsfasen fra trækket fra kablet 5's hækafsnit 10 og trækket 435 The ship 3 is exposed in the pipe laying phase from the draft from the cable section 10 of the hitch 5 and the draft 4
DK 154696 BDK 154696 B
røret 4, hvorved disse trækkræfter danner et afbalanceret kraftsystem, hvis udgangspunkt omtrentlig er beliggende på skibets dæk.the tube 4, whereby these tensile forces form a balanced force system whose starting point is approximately located on the ship's deck.
I fig. 2 har skibet 3 bevæget sig længere 5 fremad i forhold til stillingen i fig. 1, og dette er sket ved, at det har bevæget sig med sit eget dæk langs kablerne 5. Den største forskydning af skibet, der kan gennemføres ved hjælp af de ombord på skibet værende indretninger, er en funktion af forskellige parametre, 10 der indgår i sædvanlige kalkulationer, der imidlertid ikke skal omtales her. I fig. 2 er det antaget, at skibet 3 har nået sin største forskydning, og hjælpeskibe 13 og 15 begynder at hale kabelafsnittet 11 ind, henholdsvis tilføje et kabelafsnit, hvis 15 længde svarer til længden af endeafsnittet 7.In FIG. 2, the ship 3 has moved further 5 forward relative to the position of FIG. 1, and this has been done by moving with its own deck along the cables 5. The largest displacement of the ship which can be carried out by means of the devices on board the ship is a function of various parameters 10 included. in usual calculations, however, which are not to be mentioned here. In FIG. 2, it is assumed that the ship 3 has reached its greatest displacement, and auxiliary vessels 13 and 15 begin to retract the cable section 11, respectively, adding a cable section whose 15 length corresponds to the length of the end section 7.
Fig. 3 viser et planbillede af arrangementet i fig. 2. Her ses arrangementet af de to kabler 5, der danner en vinkel α på nogle få grader med skibet 3's akse for at formindske belastningen på fremdrivningsor-20 ganerne.FIG. 3 is a plan view of the arrangement of FIG. 2. Here is shown the arrangement of the two cables 5, which form an angle α of a few degrees with the axis of the ship 3 to reduce the load on the propulsion means.
Skibet 3 holdes under udlægningen af røret 4 og under den fremadgående forskydning af skibet selv i ligevægt ved hjælp af de to kabler 5, der er ført over skibet 3's dæk, og som i hækområdet indtager en form 25 omtrent som en kædelinie 9 og derved hviler på havbunden 2 på modstående sider af røret eller ledningen 4. Denne figur viser skematisk tilføjelsen af kabelendeafsnit ved boven (ved hjælp af hjælpeskibet 15 i den med e betegnede zone). Yderligere ses af 30 figuren, hvorledes kabelendeafsnittet 11 optages af hjælpeskibet 13.The ship 3 is held during the laying of the pipe 4 and during the forward displacement of the ship itself in equilibrium by means of the two cables 5 which are passed over the deck of the ship 3 and which in the stern area take a shape 25 approximately like a chain line 9, thereby resting on the seabed 2 on opposite sides of the pipe or conduit 4. This figure shows schematically the addition of cable end sections at the top (using the auxiliary ship 15 in the zone designated e). Further seen in the figure is how the cable end section 11 is taken up by the auxiliary ship 13.
Bøjerne 12 befinder sig før indhalingen af kabelendeafsnittet 11 i en zone m, og bøjen 8 befinder sig efter tilføjelsen af kabelendeafsnittet 35 7 i zonen e. Zonerne m og e viser også, at hjælpeskibene har tendens til at holde bøjerne i enThe buoys 12 are located before the inhalation of the cable end section 11 in a zone m, and the buoy 8 is after the addition of the cable end section 35 7 in zone e. Zones m and e also show that the auxiliary vessels tend to hold the buoys in a zone m.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2616574 | 1974-08-09 | ||
IT26165/74A IT1019826B (en) | 1974-08-09 | 1974-08-09 | EQUIPMENT FOR THE DRIVING OF VESSELS FOR THE LAYING OF PIPES |
Publications (3)
Publication Number | Publication Date |
---|---|
DK357475A DK357475A (en) | 1976-02-10 |
DK154696B true DK154696B (en) | 1988-12-12 |
DK154696C DK154696C (en) | 1989-05-01 |
Family
ID=11218811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK357475A DK154696C (en) | 1974-08-09 | 1975-08-06 | ARRANGEMENT FOR THE CONTROL OF A PIPELINE SHIP |
Country Status (18)
Country | Link |
---|---|
JP (1) | JPS5839118B2 (en) |
AR (1) | AR218210A1 (en) |
BE (1) | BE832156A (en) |
BR (1) | BR7504975A (en) |
CA (1) | CA1031581A (en) |
DE (1) | DE2535559C3 (en) |
DK (1) | DK154696C (en) |
EG (1) | EG13044A (en) |
ES (1) | ES440652A1 (en) |
FI (1) | FI62262C (en) |
FR (1) | FR2281270A1 (en) |
GB (1) | GB1484410A (en) |
IE (1) | IE42927B1 (en) |
IT (1) | IT1019826B (en) |
NL (1) | NL166889C (en) |
NO (1) | NO752768L (en) |
OA (1) | OA05083A (en) |
SE (1) | SE426044B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230420A (en) * | 1978-10-12 | 1980-10-28 | Brown & Root, Inc. | Semi-submersible pipelaying vessel having an improved pipelaying path |
NO972785L (en) * | 1997-06-16 | 1998-12-17 | Vring Steinar H | Device at bow, especially for anchor chain |
US7543799B2 (en) | 2002-01-24 | 2009-06-09 | Acergy Uk Limited | Method and apparatus for deploying articles in deep waters |
CN110562425B (en) * | 2019-09-20 | 2021-11-02 | 青岛度丘新能源技术有限公司 | Ship driving system based on preset traction rope |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR413859A (en) * | 1910-03-19 | 1910-08-20 | Julien Marie Paul Noel | Submerged chain ferry tank with elastic anchoring device |
DE507951C (en) * | 1929-08-04 | 1930-09-22 | Carl Blauel | Chain tractor |
US3546888A (en) * | 1968-10-30 | 1970-12-15 | Shell Oil Co | Heading control system for a pipelaying vessel |
US3715890A (en) * | 1971-01-15 | 1973-02-13 | Shell Oil Co | Mooring system for pipelaying barges |
-
1974
- 1974-08-09 IT IT26165/74A patent/IT1019826B/en active
-
1975
- 1975-07-29 GB GB31783/75A patent/GB1484410A/en not_active Expired
- 1975-07-29 SE SE7508614A patent/SE426044B/en not_active IP Right Cessation
- 1975-08-04 FI FI752214A patent/FI62262C/en not_active IP Right Cessation
- 1975-08-04 BR BR7504975*A patent/BR7504975A/en unknown
- 1975-08-05 CA CA232,859A patent/CA1031581A/en not_active Expired
- 1975-08-06 AR AR259911A patent/AR218210A1/en active
- 1975-08-06 DK DK357475A patent/DK154696C/en not_active IP Right Cessation
- 1975-08-06 NO NO752768A patent/NO752768L/no unknown
- 1975-08-06 FR FR7524544A patent/FR2281270A1/en active Granted
- 1975-08-06 BE BE158963A patent/BE832156A/en not_active IP Right Cessation
- 1975-08-07 IE IE1757/75A patent/IE42927B1/en unknown
- 1975-08-08 ES ES75440652A patent/ES440652A1/en not_active Expired
- 1975-08-08 DE DE2535559A patent/DE2535559C3/en not_active Expired
- 1975-08-08 JP JP50095979A patent/JPS5839118B2/en not_active Expired
- 1975-08-08 NL NL7509511.A patent/NL166889C/en not_active IP Right Cessation
- 1975-08-09 OA OA55583A patent/OA05083A/en unknown
- 1975-08-09 EG EG487/75A patent/EG13044A/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR413859A (en) * | 1910-03-19 | 1910-08-20 | Julien Marie Paul Noel | Submerged chain ferry tank with elastic anchoring device |
DE507951C (en) * | 1929-08-04 | 1930-09-22 | Carl Blauel | Chain tractor |
US3546888A (en) * | 1968-10-30 | 1970-12-15 | Shell Oil Co | Heading control system for a pipelaying vessel |
US3715890A (en) * | 1971-01-15 | 1973-02-13 | Shell Oil Co | Mooring system for pipelaying barges |
Also Published As
Publication number | Publication date |
---|---|
NL7509511A (en) | 1976-02-11 |
NO752768L (en) | 1976-02-10 |
JPS5839118B2 (en) | 1983-08-27 |
FR2281270B1 (en) | 1978-10-20 |
AR218210A1 (en) | 1980-05-30 |
IE42927L (en) | 1976-02-09 |
SE426044B (en) | 1982-12-06 |
JPS5142290A (en) | 1976-04-09 |
DE2535559C3 (en) | 1982-02-18 |
FR2281270A1 (en) | 1976-03-05 |
DK357475A (en) | 1976-02-10 |
NL166889C (en) | 1981-10-15 |
IE42927B1 (en) | 1980-11-19 |
IT1019826B (en) | 1977-11-30 |
DE2535559B2 (en) | 1981-06-04 |
NL166889B (en) | 1981-05-15 |
ES440652A1 (en) | 1977-03-16 |
DK154696C (en) | 1989-05-01 |
FI62262C (en) | 1982-12-10 |
AU8327575A (en) | 1977-01-27 |
FI62262B (en) | 1982-08-31 |
SE7508614L (en) | 1976-02-10 |
OA05083A (en) | 1981-01-31 |
EG13044A (en) | 1980-10-31 |
GB1484410A (en) | 1977-09-01 |
FI752214A (en) | 1976-02-10 |
CA1031581A (en) | 1978-05-23 |
BR7504975A (en) | 1976-08-03 |
BE832156A (en) | 1976-02-06 |
DE2535559A1 (en) | 1976-02-19 |
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Legal Events
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PBP | Patent lapsed |