NL2022929B1 - Marine vessel having a crane and method of operation - Google Patents

Marine vessel having a crane and method of operation Download PDF

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Publication number
NL2022929B1
NL2022929B1 NL2022929A NL2022929A NL2022929B1 NL 2022929 B1 NL2022929 B1 NL 2022929B1 NL 2022929 A NL2022929 A NL 2022929A NL 2022929 A NL2022929 A NL 2022929A NL 2022929 B1 NL2022929 B1 NL 2022929B1
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NL
Netherlands
Prior art keywords
boom
jib
section
main boom
boom section
Prior art date
Application number
NL2022929A
Other languages
Dutch (nl)
Inventor
Roodenburg Joop
Martinus Van Veluw Cornelis
Van Der Linde Adrianus
Original Assignee
Itrec Bv
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Publication date
Application filed by Itrec Bv filed Critical Itrec Bv
Priority to NL2022929A priority Critical patent/NL2022929B1/en
Priority to PCT/NL2020/050202 priority patent/WO2020209712A1/en
Application granted granted Critical
Publication of NL2022929B1 publication Critical patent/NL2022929B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes
    • 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
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The present invention relates to a marine vessel and a method of operation. The vessel comprises a hull and a crane with a revolving superstructure. The crane has a boom with a main boom section and a jib section mounted pivotally to the upper end of the main boom section. A boom rest is arranged on the hull spaced from the slew bearing. A fastening 5 assembly is configured to fasten the object suspension device of the crane relative to the hull of the vessel. The fastening assembly is spaced further from the slew bearing than the boom rest. The method comprise a boom parking routine comprising bringing the boom in a raised intermediate position wherein the boom main section is remote from the boom rest and the jib sheave assembly is vertically above the fastening assembly. The hoist cable is 10 paid out until the object suspension device reaches the fastening assembly and is fastened thereto. The main boom section is then lowered towards the boom rest by means of a luffing assembly combined with hauling in the hoist cable, and possibly also combined with operating the variable length stay mechanism, so that the tip end of the jib member is pulled towards the fastening assembly, until the main boom section rests on the boom rest in the 15 parking position of the boom.

Description

P34508NL00
MARINE VESSEL HAVING A CRANE AND METHOD OF OPERATION The present invention relates to a marine vessel, e.g. a jack-up type vessel, having a crane and a method of operation of such a marine crane vessel. It is commonly known to use marine crane vessels for offshore hoisting purposes, such for the installation and/or maintenance of offshore wind turbines. Other applications are, for example, hoisting activities related to offshore platforms for oil and/or gas production, e.g. for decommission such offshore platforms. Current offshore wind turbines require a foundation, e.g. in the form of a monopile. The wind turbine is then installed on the monopile, either in one piece or in several pieces.
Many known offshore wind turbine installation vessels are of the jack-up type, with extendible jack-up legs and with a crane for installation of the wind turbine. In a known design, the crane is an around-the-leg crane.
In order to make efficient use of wind energy, the trend is to increase the diameter of the rotor of the wind turbine and to have the hub high above the water. Wind turbine blades of 60 — 90 meters in length or even longer may be very common in the near future. The hub of the wind turbine, and therefore the height of the mast, also is ever increasing. For example, the hub may be at 100 meters above the sea, or even higher. This also increases the size and weight of all other components of the turbine installation including the nacelle, hub, generator, blades, mast, and/or the foundation. The trend therefore is towards cranes on such a vessel with an increased reach and lifting capability, so generally a longer and stronger boom, allowing for hoisting operations at great height. During transfer of the vessel, it is advantageous, even necessary, to position the boom in a parking position.
Itis an object of the present invention to provide a marine vessel with a crane having a boom allowing for an advantageous parking routine and parking position. This aim is achieved by a vessel operated according to the method of claim 1.
-2- In the invention, the vessel has a boom rest that is arranged on the hull spaced from the slew bearing and is adapted to rest the main boom section of the boom thereon in a parking position of the boom. Further a fastening assembly is provided which is configured to fasten the object suspension device relative to the hull of the vessel, said fastening assembly being spaced further from the slew bearing than the boom rest.
The method comprise a boom parking routine wherein the boom is brought from a hoisting position into the parking position, wherein said boom parking routine comprises: a. bringing the boom in a raised intermediate position wherein the boom main section is remote from the boom rest and the jib sheave assembly is vertically above the fastening assembly; b. paying out the hoist cable and thereby lowering the object suspension device suspended from the hoisting cable below the jib sheave assembly, said lowering being continued until the object suspension device reaches the fastening assembly, c. fastening the object suspension device to the fastening assembly, d. lowering the main boom section towards the boom rest by means of the luffing assembly combined with hauling in the hoist cable, and possibly also combined with operating the variable length stay mechanism, so that the tip end of the jib member is pulled towards the fastening assembly, until the main boom section rests on the boom rest in the parking position of the boom.
This approach allows for a long boom that allows to meet the industry demand, which boom is then also relatively heavy, whilst assuring a reliable and effective parking of the boom.
In an embodiment, the vessel further comprises a jib tip end support device in proximity of the fastening assembly for the object suspension device, wherein the boom parking routine comprises bringing the tip end of the jib member into load bearing engagement with the jib tip end support device, so that in the parking position of the boom a part of the weight of the boom rests on the boom rest and a part of the weight of the boom rests on the jib tip end support device. This allows to avoid undue load on the boom rest and/or on the main boom section where it is supported by the boom rest.
In an embodiment, the fastening assembly, and possibly also the jib tip end support device, are located closer to the slew bearing than the upper end of the main boom section in the parking position thereof on the boom rest, so that the jib member extends from the inner end thereon inwards relative to the main boom section. This, for instance, may allow for a crane
-3- having a long boom. For example, a marine vessel with a relatively smaller hull can be provided with a crane having a relatively long boom. In an embodiment, use is made of an automated control device that is configured and programmed to perform automatically the steps a., b., and d. of claim 1.
In an embodiment the jib section has a second jib strut oriented at an angle from a first jib strut and configured to engage on the variable length stay mechanism, so as to maintain a lever action of the variable length stay mechanism about the pivot axis of the jib section, e.g. when the first jib strut becomes generally aligned with the main boom section, e.g. during the parking routine.
In an embodiment, the vessel is a marine jack-up type vessel comprising: - a buoyant hull, - atleast three, preferably four or six, jack-up legs, - a plurality of elevating units, each associated with a respective jack-up leg, adapted to move the respective jack-up leg vertically relative to the hull and to bring the vessel in an operational position wherein the legs engage the seabed and the hull is above water level.
In an embodiment, the crane is a leg encircling crane comprising a foot fixed to the hull, wherein the slew bearing is supported on the foot and extends about a jack-up leg of the vessel, and wherein the revolving superstructure is supported by said slew bearing.
In an embodiment, the main boom section comprises a pair of boom legs, which are connected at said upper end to each other via a head structure of the main boom section, e.g. said head structure supporting a whip hoist member extending beyond said main boom section in a central plane of the main boom section, and wherein said jib is pivotally connected to said head structure of the main boom section.
In an embodiment, in the boom parking routine, the main boom section is aligned with a jack-up leg of the vessel and is lowered over said jack-up leg so that in the parking position the boom legs of the main boom section are on opposite sides of said jack-up leg.
In an embodiment, the jib member comprises a triangular jib member frame, said jib sheave assembly being mounted at a tip end of said triangular jib member frame, wherein a base of the triangular jib member frame is pivotally connected to the head structure of the main boom section.
-4- In an embodiment, the jib structure comprises a jib strut frame having a pair of radial jib strut members each extending radially from a respective transverse end portion of the head of the main boom section and being pivotally connected to the head of the main boom section.
In an embodiment the method further comprises a hoisting step, wherein the crane is used to lift an object at an offshore location, e.g. a component of an offshore wind turbine. The present invention also relates to a marine vessel as disclosed herein.
The present invention also relates to a marine vessel according to claim 11, wherein the boom is movable, in a boom parking routine, from a hoisting position into the parking position, wherein said boom parking routine comprises: a. bringing the boom in a raised intermediate position wherein the boom main section is remote from the boom rest and the jib sheave assembly is vertically above the fastening assembly; b. paying out the hoist cable and thereby lowering the object suspension device suspended from the hoisting cable below the jib sheave assembly, said lowering being continued until the object suspension device reaches the fastening assembly, c. fastening the object suspension device to the fastening assembly, d. lowering the main boom section towards the boom rest by means of the luffing assembly combined with hauling in the hoist cable, and possibly also combined with operating the variable length stay mechanism, so that the tip end of the jib member is pulled towards the fastening assembly, until the main boom section rests on the boom rest in the parking position of the boom. In an embodiment, the vessel further comprises a jib tip end support device in proximity of the fastening assembly for the object suspension device, wherein the boom parking routine comprises bringing the tip end of the jib member into load bearing engagement with the jib tip end support device, so that in the parking position of the boom a part of the weight of the boom rests on the boom rest and a part of the weight of the boom rests on the jib tip end support device. In an embodiment, the fastening assembly, and possibly also the jib tip end support device, are located closer to the slew bearing than the upper end of the main boom section in the parking position thereof on the boom rest, so that the jib member extends from the inner end thereon inwards relative to the main boom section.
-5- In an embodiment, the vessel comprises an automated control device that is configured and programmed to perform automatically the steps a., b., and d. of claim 11. In an embodiment, the vessel is a marine jack-up type vessel comprising: - a hull, - at least three jack-up legs, - a plurality of elevating units, each associated with a respective jack-up leg, adapted to move the respective jack-up leg vertically relative to the hull and to bring the vessel in an operational position wherein the legs engage the seabed and the hull is above water level. In embodiments, the main boom section comprises a pair of boom legs, which are connected at said upper end to each other via a head structure of the main boom section, e.g. said head structure supporting a whip hoist member extending beyond said main boom section in a central plane of the main boom section, and wherein said jib is pivotally connected to said head structure of the main boom section. In embodiments, in the boom parking routine, the main boom section is aligned with a jack- up leg of the vessel and is lowered over said jack-up leg so that in the parking position the boom legs of the main boom section are on opposite sides of said jack-up leg. In embodiments, the jib member comprises a triangular jib member frame, said jib sheave assembly being mounted at a tip end of said triangular jib member frame, wherein a base of the triangular jib member frame is pivotally connected to the head structure of the main boom section. In embodiments, jib structure comprises a jib strut frame having a pair of radial jib strut members each extending radially from a respective transverse end portion of the head of the main boom section and being pivotally connected to the head of the main boom section.
The invention will be elucidated further in relation to the drawings, in which: Fig. 1 shows a side view of a jack-up type marine vessel according to the invention; Fig. 2 shows a part of the boom of the crane of fig. 1 on a larger scale, Fig. 3 shows a plan view of the vessel of fig. 1 with the boom in parking position, Fig. 4 shows the vessel of figure 1 in side view with the boom in parking position, Fig. 5 shows a part of the figure 4 on a larger scale, Fig. 6 shows a part of figure 3 on a larger scale,
-6- Fig. 7 shows the vessel of figure 1, with the boom during execution of the parking routine, Fig. 8 shows a leg and the crane of the vessel of figure 1 in a perspective view, Fig. 9 shows a leg and the crane of the vessel of figure 1 in another perspective view. Inthe figures, an exemplary jack-up type marine vessel 1 is shown, comprising a buoyant hull 2. The hull 2, in this example, has an accommodation and bridge structure 4 at the bow, here with a helideck. Aft of the structure 4 the vessel has a main deck 3. In figures 4, 5, 6, 7 a part of structure 4 has been left out for clarity.
The hull 2 comprises a plurality, here four, vertical leg openings 5 through the hull. These leg openings are spaced about the hull. Jack-up legs 6a,b,c,d extend through the hull 2, each via a respective leg opening 5.
Each of the legs 6a-d is movable in a vertical direction with respect to the hull 2 by means of an elevating unit 7 is positioned at the vertical leg opening. The elevating units 7 are adapted to lift the hull 2 free of the water surface when the legs 6a-d engage the seabed. The vessel 1 comprises a crane 20, here a leg-encircling crane, also referred to in the industry as an around-the-leg crane 20. A foot 10 is fixed to the hull. Here the leg 6a extends through the foot 10. A slew bearing 15 is supported on the foot 10 and extends about a jack-up leg 6a of the vessel 1. The crane 20 has a revolving superstructure 21 that is supported by the slew bearing 15. The crane further comprises a boom 30 that is pivotally mounted to the revolving superstructure 21 about a horizontal pivot axis 22. The boom 30 comprises: - a main boom section 35 comprising a lower end 386 that is pivotally mounted about pivot axis 22 to the superstructure 21 and an upper end 37, - a jib section 40 that is mounted pivotally about a pivot axis P to the upper end 37 of the main boom section 35.
-7- In the figure 1, which is to scale as are the other figures, the tip end of the jib section 43 is shown at a height of 150 meters above the deck 3. The jib section 40 comprises: - a jib member 41, e.g. having a length of between 15 and 35 meters, an inner end 42 of which is pivotally mounted about pivot axis P to the upper end 37 of the main boom section 35, said jib member 41 having a tip end 43, and - a jib strut 45 having an inner end 46 that is secured to the inner end 42 of the jib member and having an outer end 47, and - a jib stay 48 extending between the outer end of the jib strut and the jib member, here the tip end 43 thereof. As shown here, the jib strut 45, or first jib strut as multiple jib struts at differing angles may be possible, is generally perpendicular to the jib member 41. As preferred, the jib stay 48 is a fixed length jib stay, e.g. formed by one or more cables or rods. A jib sheave assembly 50 is mounted on the jib member, here in proximity of the tip end thereof. A variable length stay mechanism 60 is provided between the main boom section 35 and the jib strut 45.
In the depicted embodiment, an as optional for the crane, a second jib strut 45b is provided oriented at an angle from the first jib strut 45 that is further away from the jib member 41. It is envisaged that said second jib strut 45b engages on the variable length stay mechanism 60, so as to maintain a lever action of the mechanism 60 about the pivot axis P, when the first jib strut 45 becomes generally aligned with the main boom section 35, e.g. during the parking routine. The first and second jib struts 45, 45b may be fixed to another, e.g. by connector frame 45c. The crane 20 has a luffing assembly comprising a luffing winch 70 mounted to the superstructure 21 and a luffing cable 72 extending between the luffing winch 70 on the superstructure and the main boom section 35, preferably the upper end 37 thereof;
-8- The crane 20 has a hoist winch 80, a hoist cable 82, and an object suspension device 85. The hoist cable 82 extends from the hoist winch 80, along the jib sheave assembly 50, to the object suspension device 85 suspended from the cable 82 below the assembly 50. As preferred the cable 82 extends in a multiple falls arrangement between the sheave assembly 50 and the device 85, that is then also provided with a sheave assembly. As shown here, in embodiments, the device 85 comprises a crane hook 86, e.g. a multi- prong crane hook.
For example, as shown here, the crane has a capacity to lift at least 800 tonnes. The vessel 1 has a boom rest 90, here in proximity of leg 6b, e.g. at both sides of the leg 6b, that is arranged on the hull 2 at a location spaced from the slew bearing 15 and adapted to rest the main boom section 35 of the boom thereon in a parking position of the boom.
The vessel has a fastening assembly 100 that is configured to fasten the object suspension device 85 relative to the hull 2 of the vessel, e.g. on a front deck 12 thereof as shown here. The fastening assembly 100 is spaced further from the slew bearing 15 than the boom rest 90, here the assembly 100 is forward, so further to the bow, than the boom rest 90. The boom 30 is movable, in a boom parking routine, from a hoisting position into a parking position by means of a boom parking routine.
The boom parking routine comprises: a. bringing the boom 30 in a raised intermediate position, wherein the boom main section 35 still is remote from the boom rest 90 and the jib sheave assembly 50 is vertically above the fastening assembly 100; b. paying out the hoist cable 82 and thereby lowering the object suspension device 85 suspended from the hoisting cable 82 below the jib sheave assembly 50, said lowering being continued until the object suspension device 85 reaches the fastening assembly 100, c. fastening the object suspension device 85 to the fastening assembly 100, d. lowering the main boom section 35 towards the boom rest 90 by means of the luffing assembly combined with hauling in the hoist cable 82, and possibly also combined with operating the variable length stay mechanism 80, so that the tip end 43 of the jib member 41 is pulled towards the fastening assembly 100, until the main boom section 35 rests on the boom rest 90 in the parking position of the boom.
-9- As shown here, the vessel further comprises a jib tip end support device 120 in proximity of the fastening assembly 100 for the object suspension device 85. The device 120 may be integrated with the assembly 100 when desired.
In an embodiment the boom parking routine comprises bringing the tip end 43 of the jib member 41 into load bearing engagement with the jib tip end support device 120, so that in the parking position of the boom 30 a part of the weight of the boom 30 rests on the boom rest 90 and a part of the weight of the boom rests on the jib tip end support device 120.
As shown here, e.g. in view of the length of the vessel relative to the length of the boom, it is preferable for the fastening assembly 100, and possibly also the jib tip end support device 120, to be located closer to the slew bearing 15 than the upper end 37 of the main boom section 35 in the parking position thereof on the boom rest, so that the jib member extends from the inner end thereon inwards relative to the main boom section. In embodiments, as shown here, the inner end 37 extends beyond the bow of the vessel in the parking position, with the tip end 43 being inboard of the hull of the vessel.
In embodiment, as shown here, the jib member 41 extends rearward and downward relative to the upper end 37 of the boom section 35 in the parking position. In embodiment, the vessel comprises an automated control device that is configured and programmed to perform automatically the steps a., b., and d. of the boom parking routine.
As shown here, in an embodiment, the main boom section 35 comprises a pair of boom legs 35a, b, which are connected at said upper end 37 to each other via a head structure 38 of the main boom section 35.
As shown here, the head structure 38 may support a whip hoist member 39 extending beyond said main boom section 35 in a central plane of the main boom section. The jib section 40 is pivotally connected to the head structure 38 of the main boom section
35.
It is also shown here that in the boom parking routine, the main boom section 35 is aligned with a jack-up leg 6b of the vessel and is lowered over said jack-up leg 6b so that in the
-10 - parking position the boom legs of the main boom section are on opposite sides of said jack- up leg. This is known as an over-the-leg parking of the boom. It is also shown here that the jib member 41 comprises a triangular jib member frame, wherein the jib sheave assembly 50 is mounted at a tip end 43 of the triangular jib member frame, and wherein a base of the triangular jib member frame is pivotally connected to the head structure 38 of the main boom section.
It is also shown here that the jib strut 45 comprises a jib strut frame having a pair of radial jib strut members 45a, b each extending radially from a respective transverse end portion of the head 38 of the main boom section and being pivotally connected to the head of the main boom section.

Claims (1)

-11 --11 - CONCLUSIESCONCLUSIONS 1. Werkwijze voor bedrijven van een marien vaartuig (1) omvattende: - een romp (2); -een aan de romp (2) bevestigd zwenklager (15); - een kraan (20), omvattende: - een op de zwenklager bevestigde draaibare bovenbouw (21), - een scharnierbaar aan de draaibare bovenbouw bevestigde giek (30), waarbij de giek omvat: - een hoofdgieksectie (35) omvattende een onderste einde (36) dat om een scharnieras (22) scharnierbaar is bevestigd aan de bovenbouw (21}, en een bovenste einde (37, 38), - een jibsectie (40) die om een scharnieras (P) scharnierbaar is bevestigd aan het bovenste einde van de hoofdgieksectie en omvat: - een jibelement (41), waarvan een binnenste einde (42) om de scharnieras (P) scharnierbaar aan het bovenste einde (37, 38) van de hoofdgieksectie is bevestigd, waarbij het kraanarmelement een tipuiteinde heeft, en - een jibstrut (45) die een aan het binnenste einde van het kraanarmelement bevestigd binnenste einde (46) heeft en een buitenste einde (47) heeft, - een jibverstaging (48) die zich uitstrekt tussen het buitenste einde (47) van de jibstrut en het jibelement (41), bijv. het tipuiteinde (43) daarvan, - een jibschijvensamenstel (50) dat aan het jibelement (41) is bevestigd, bij voorkeur in de nabijheid van het tipuiteinde daarvan, - een variabele-lengte-verstagingsmechanisme (60) voorzien tussen de hoofdgieksectie en de jibstrut; - een oploefsamenstel omvattende een aan de bovenbouw bevestigde oploeflier (70) en een oploefkabel (72) die zich uitstrekt tussen de oploeflier aan de bovenbouw en de hoofdgieksectie, bij voorkeur het bovenste einde daarvan, - een hijslier (80), een hijskabel (82), en een object-ophanginrichting (85), waarbij de hijskabel zich uitstrekt van de hijslier, langs het jibschijvensamenstel (50), naar de object-ophanginrichting (85), - een gieksteun (90) die is aangebracht op de romp (2) op een locatie op afstand van het zwenklager (15) en is aangepast om de hoofdgieksectie (35) van de giek daarop in een parkeerpositie van de giek te ondersteunen,A method for operating a marine vessel (1), comprising: - a hull (2); -a pivot bearing (15) attached to the hull (2); - a crane (20), comprising: - a pivotable superstructure (21) mounted on the pivot bearing, - a boom (30) pivotably mounted to the pivotal superstructure, the boom comprising: - a main boom section (35) comprising a lower end ( 36) pivotally attached to the superstructure (21} about a pivot axis (22), and an upper end (37, 38), - a jib section (40) pivotably attached to the upper end of a pivot axis (P) the main boom section and comprises: - a jib member (41), an inner end (42) of which is pivotally attached about the pivot axis (P) to the upper end (37, 38) of the main boom section, the jib member having a tip end, and - a jibstrut (45) having an inner end (46) attached to the inner end of the jib member and having an outer end (47), - a jib stay (48) extending between the outer end (47) of the jibstrut, and the jib element (41), e.g. its tip end (43), - a jib disk assembly (50) attached to the jib member (41), preferably in the vicinity of the tip end thereof, - a variable length stiffening mechanism (60) provided between the main boom section and the jib strut; - a lifting assembly comprising a lifting winch (70) attached to the superstructure and a lifting rope (72) extending between the lifting winch on the superstructure and the main boom section, preferably the top end thereof, - a hoisting winch (80), a hoisting rope (82) ), and an object suspension device (85), wherein the hoisting cable extends from the hoisting winch, along the jib disc assembly (50), to the object suspension device (85), - a boom support (90) mounted on the hull (2 ) at a location remote from the swing bearing (15) and is adapted to support the main boom section (35) thereon in a boom parking position, -12- - een vastzetsamenstel (100) dat is ingericht om de object-ophanginrichting (85) ten opzichte van de romp (2) van het vaartuig vast te zetten, waarbij het vastzetsamenstel zich op grotere afstand van het zwenklager (15) bevindt dan de gieksteun (90), waarbij de werkwijze een giekparkeerroutine omvat waarbij de giek (30) van een hijspositie naar de parkeerpositie wordt gebracht, waarbij de giekparkeerroutine omvat: a. het naar een verhoogde tussenpositie brengen van de giek (30) waarin de hoofdgieksectie (35) zich op afstand van de gieksteun (90) bevindt en het jibschijvensamenstel (50) zich verticaal boven het vastzetsamenstel (100) bevindt; b. het vieren van de hijskabel (82) en daarmee het neerlaten van de aan de hijskabel gehangen object-ophanginrichting (85) onder het jibschijvensamenstel (50), waarbij het neerlaten wordt voortgezet totdat de object-ophanginrichting (85) het vastzetsamenstel (100) bereikt, c. het vastzetten van de object-ophanginrichting (85) aan het vastzetsamenstel (100), d. het neerlaten van de hoofdgieksectie (35) naar de gieksteun (9) toe door middel van het oploefsamenstel (70, 71) gecombineerd met inhalen van de hijskabel (82), en optioneel ook gecombineerd met tewerkstellen van het variabele-lengte- verstagingsmechanisme (60), zodat het tipuiteinde (43) van het jibelement (41) naar het vastzetsamenstel (100) toe wordt getrokken, totdat de hoofdgieksectie (35) op de gieksteun (90) rust in de parkeerpositie van de giek.-12- - a locking assembly (100) adapted to secure the object suspension device (85) relative to the hull (2) of the vessel, the locking assembly being further away from the swing bearing (15) than the boom rest (90), the method comprising a boom parking routine in which the boom (30) is moved from a hoist position to the park position, the boom parking routine comprising: a. moving the boom (30) to an elevated intermediate position in which the main boom section ( 35) is spaced from the boom support (90) and the jib disc assembly (50) is vertically above the tie down assembly (100); b. releasing the hoist rope (82) and thereby lowering the hoisted object suspension device (85) below the jib disc assembly (50), continuing the lowering until the object suspension device (85) reaches the securing assembly (100) , c. securing the object hanging device (85) to the securing assembly (100), d. lowering the main boom section (35) towards the boom support (9) by means of the floating assembly (70, 71) combined with hauling in the hoist cable (82), and optionally also combined with employing the variable length stiffening mechanism (60 ), so that the tip end (43) of the jib member (41) is pulled toward the tie down assembly (100) until the main boom section (35) rests on the boom support (90) in the boom parking position. 2. Werkwijze volgens conclusie 1, waarbij het vaartuig (1) verder een jibtipuiteinde- ondersteuningsinrichting (120) nabij het vastzetsamenstel (100) omvat voor de object- ophanginrichting (85), waarbij de giekparkeerroutine omvat het in lastdragende aangrijping brengen van het tipuiteinde (43) van het jibelement (41) met de jibtipuiteinde- ondersteuningsinrichting (120), zodat in de parkeerpositie van de giek een deel van het gewicht van de giek (30) op de gieksteun (90) rust en een deel van het gewicht van de giek (30) op de jibtipuiteinde-ondersteuningsinrichting (120) rust.The method of claim 1, wherein the vessel (1) further comprises a jib tip end support device (120) adjacent the securing assembly (100) for the object suspension device (85), the boom parking routine comprising bringing the tip end (85) into load bearing engagement. 43) of the jib member (41) with the jib tip end support device (120), so that in the boom park position some of the weight of the boom (30) rests on the boom support (90) and some of the weight of the boom boom (30) rests on jib tip end support device (120). 3. Werkwijze volgens conclusie 1 of 2, waarbij het vastzetsamenstel (100), en optioneel ook de jibtipuiteinde-ondersteuningsinrichting (120), zich dichter bij het zwenklager (15) bevinden dan het bovenste einde (37, 38) van de hoofdgieksectie in de parkeerpositie daarvan op de gieksteun (90), zodat het jibelement (41) zich vanaf het bovenste einde (37) van de hoofdgieksectie (35) inwaarts uitstrekt ten opzichte van de hoofdgieksectie.The method of claim 1 or 2, wherein the tie down assembly (100), and optionally also the jib tip end support device (120), are closer to the swing bearing (15) than the top end (37, 38) of the main boom section in the main boom section. parking position thereof on the boom support (90) so that the jib member (41) extends from the top end (37) of the main boom section (35) inwardly of the main boom section. 4. Werkwijze volgens één of meer van conclusies 1-3, waarbij gebruik wordt gemaakt van een automatische regelinrichting die is ingericht en geprogrammeerd om de stappen a., b., en d. van conclusie 1 automatisch uit te voeren.A method according to any one of claims 1-3, wherein use is made of an automatic control device configured and programmed to perform steps a., B., And d. of claim 1 automatically. -13--13- 5. Werkwijze volgens één of meer van conclusies 1-4, waarbij het vaartuig een marien vaartuig (1) van het jack-up type is omvattende: - een romp (2) met een hoofddek (3), -ten minste drie jack-up poten (6a-d), - meerdere hefeenheden (7), die elk bij een respectieve jack-up poot betrokken zijn, en zijn ingericht om de respectieve jack-up poot verticaal ten opzichte van de romp te bewegen, en om het vaartuig in een werkzame positie te brengen waarin de poten de zeebodem aangrijpen en de romp zich boven het waterniveau bevindt.Method according to one or more of claims 1-4, wherein the vessel is a marine vessel (1) of the jack-up type, comprising: - a hull (2) with a main deck (3), -at least three jack- up legs (6a-d), - multiple lifting units (7), each involved in a respective jack-up leg, and arranged to move the respective jack-up leg vertically with respect to the hull, and to move the vessel into an operative position in which the legs engage the seabed and the hull is above the water level. 6. Werkwijze volgens conclusie 5, waarbij de kraan (20) een om-de-poot-kraan is die een aan de romp bevestigde voet (10) omvat, waarbij het zwenklager (15) op de voet wordt ondersteund en zich om een jack-up poot (6a) van het vaartuig uitstrekt, en waarbij de draaibare bovenbouw door de zwenklager wordt ondersteund.The method of claim 5, wherein the crane (20) is an on-the-leg crane comprising a base (10) attached to the hull, the pivot bearing (15) being supported on the base and surrounding a jack. -up leg (6a) of the vessel, and with the pivotable superstructure supported by the swing bearing. 7. Werkwijze volgens één of meer van de conclusies 1-6, waarbij de hoofdgieksectie (35) een paar giekpoten (35a,b) omvat, welke aan het bovenste einde aan elkaar zijn verbonden via een kopstructuur (38) van de hoofdgieksectie, waarbij bijv. de kopstructuur (38) een wipperhijselement (39) ondersteunt die zich buiten de hoofdgieksectie uit in een centraal vlak van de hoofdgieksectie uitstrekt, en waarbij de jibsectie (40) scharnierbaar met de kopstructuur van de hoofdgieksectie is verbonden.The method of any of claims 1 to 6, wherein the main boom section (35) comprises a pair of boom legs (35a, b) connected together at the top end via a head structure (38) of the main boom section, wherein e.g., the head structure (38) supports a rocker hoist (39) that extends outside the main boom section in a central plane of the main boom section, and wherein the jib section (40) is pivotally connected to the head structure of the main boom section. 8. Werkwijze volgens ten minste conclusies 5 en 7, waarbij in de giekparkeerroutine, de hoofdgieksectie (35) is uitgelijnd met een jack-up poot (6b) van het vaartuig en over deze jack-up poot wordt neergelaten zodat in de parkeerpositie de giekpoten (35a,b) van de hoofdgieksectie zich aan tegenovergelegen zijden van de jack-up poot bevinden.A method according to at least claims 5 and 7, wherein in the boom parking routine, the main boom section (35) is aligned with a jack-up leg (6b) of the vessel and is lowered over this jack-up leg so that in the parking position the boom legs (35a, b) of the main boom section are on opposite sides of the jack-up leg. 9. Werkwijze volgens ten minste conclusie 7, waarbij het jibelement (41) een driehoekig jibelementframe omvat, waarbij het jibschijvensamenstel (50) aan een tipuiteinde van het driehoekige jibelementframe is bevestigd, waarbij een basis van het driehoekige jibelementframe scharnierbaar met de kopstructuur (38) van de hoofdgieksectie is verbonden.The method of at least claim 7, wherein the jib member (41) comprises a triangular jib member frame, wherein the jib disk assembly (50) is attached to a tip end of the triangular jib member frame, a base of the triangular jib member frame pivotable with the head structure (38). of the main boom section is connected. 10. Werkwijze volgens ten minste conclusie 7, waarbij de jibstrut (45) een jibstrutframe omvat dat een paar radiale jibstrutelementen {454,b) heeft die zich elk radiaal van een respectief transversaal eindgedeelte van de kopstructuur (38) van de hoofdgieksectie uitstrekken en scharnierbaar met de kopstructuur van de hoofdgieksectie zijn verbonden.The method of at least claim 7, wherein the jib strut (45) comprises a jib strut frame having a pair of radial jib struts {454, b) each extending radially from a respective transverse end portion of the main boom section head structure (38) and pivotable. are connected to the head structure of the main boom section. 11. Een marien vaartuig (1) omvattende:A marine vessel (1) comprising: -14 - - een romp (2); - een aan de romp (2) bevestigd zwenklager (15); - een kraan (20) omvattende: - een op het zwenklager bevestigde draaibare bovenbouw (21), - een scharnierbaar aan de draaibare bovenbouw bevestigde giek (30), waarbij de giek omvat: - een hoofdgieksectie (35) omvattende een onderste einde (36) dat om een scharnieras (22) scharnierbaar is bevestigd aan de bovenbouw (21), en een bovenste einde, - een jibsectie (40) die om een scharnieras (P) scharnierbaar is bevestigd aan het bovenste einde van de hoofdgieksectie en omvat: - een jibelement (41), waarvan een binnenste einde (42) om de scharnieras (P) scharnierbaar aan het bovenste einde (37, 38) van de hoofdgieksectie is bevestigd, waarbij het kraanarmelement een tipuiteinde (43) heeft, en - een jibstrut (45) dat een aan het binnenste einde van het kraanarmelement bevestigd binnenste einde heeft en een buitenuiteinde heeft, - een jibverstaging (48) die zich uitstrekt tussen het buitenuiteinde van de jibstrut en het jibelement, bijv. het tipuiteinde daarvan, - een jibschijvensamenstel (50) die aan het jibelement is bevestigd, bij voorkeur in de nabijheid van het tipuiteinde daarvan, - een variabele-lengte-verstagingsmechanisme (60) voorzien tussen de hoofdgieksectie en de jibstrut; - een oploefsamenstel omvattende een aan de bovenbouw bevestigde oploeflier (70) en een oploefkabel (72) die zich uitstrekt tussen de oploeflier aan de bovenbouw en de hoofdgieksectie, bij voorkeur het bovenste einde daarvan,-14 - - a hull (2); - a pivot bearing (15) attached to the hull (2); - a crane (20) comprising: - a pivotal superstructure (21) mounted on the pivot bearing, - a boom (30) pivotably mounted to the pivotal superstructure, the boom comprising: - a main boom section (35) comprising a lower end (36) ) pivotally attached to the superstructure (21) about a pivot axis (22), and an upper end, - a jib section (40) pivotably attached to the upper end of the main boom section about a pivot axis (P) and comprising: - a jib element (41), an inner end (42) of which is pivotably mounted about the pivot axis (P) to the upper end (37, 38) of the main boom section, the jib element having a tip end (43), and - a jibstrut ( 45) which has an inner end attached to the inner end of the jib member and has an outer end, - a jib stay (48) extending between the outer end of the jibstrut and the jib element, e.g. the tip end thereof, - a jib disc assembly (50 ) attached to the jib element, preferably in the vicinity of the tip end thereof, - a variable length stiffening mechanism (60) provided between the main boom section and the jibstrut; - a lifting assembly comprising a lifting winch (70) attached to the superstructure and a lifting rope (72) extending between the lifting winch on the superstructure and the main boom section, preferably the upper end thereof, - een hijslier (80), een hijskabel (82), en een object-ophanginrichting (85), waarbij de hijskabel zich uitstrekt van de hijslier, langs het jibschijvensamenstel, naar de object- ophanginrichting, - een gieksteun (20) die is aangebracht op de romp op een locatie op afstand van de zwenklager en is aangepast om de hoofdgieksectie van de giek daarop in een parkeerpositie van de giek te ondersteunen,- a hoisting winch (80), a hoisting rope (82), and an object suspension device (85), the hoisting cable extending from the hoisting winch, along the jib disk assembly, to the object suspension device, - a boom support (20) provided on the hull at a location remote from the swing bearing and is adapted to support the main boom section of the boom thereon in a boom parking position, -15- - een vastzetsamenstel (100) dat is ingericht om de object-ophanginrichting ten opzichte van de romp van het vaartuig vast te zetten, waarbij het vastzetsamenstel zich op grotere afstand van de zwenklager bevindt dan de gieksteun, waarbij de giek, in een giekparkeerroutine, beweegbaar is van een hijspositie naar de parkeerpositie, waarbij de giekparkeerroutine omvat: a. het naar een verhoogde tussenpositie brengen van de giek (30) waarin de hoofdgieksectie (35) zich op afstand van de gieksteun (90) bevindt en het jibschijvensamenstel (50) zich verticaal boven het vastzetsamenstel (100) bevindt; b. het vieren van de hijskabel (82) en daarmee het neerlaten van de aan de hijskabel gehangen object-ophanginrichting (85) onder het jibschijvensamenstel (50), waarbij het neerlaten wordt voortgezet totdat de object-ophanginrichting het vastzetsamenstel (100) bereikt, c. het vastzetten van de object-ophanginrichting (85) aan het vastzetsamenstel (100), d. het neerlaten van de hoofdgieksectie (35) naar de gieksteun (9) toe door middel van het oploefsamenstel gecombineerd met inhalen van de hijskabel (82), en optioneel ook gecombineerd met tewerkstellen van het variabele-lengte- verstagingsmechanisme (60), zodat het tipuiteinde (43) van het jibelement (41) naar het vastzetsamenstel toe wordt getrokken, totdat de hoofdgieksectie op de gieksteun (90) rust in de parkeerpositie van de giek.-15- - a tie-down assembly (100) adapted to secure the object suspension device relative to the hull of the vessel, the tie-down assembly being further away from the swing bearing than the boom support, the boom, in a boom parking routine, is movable from a hoist position to the park position, the boom parking routine comprising: a. bringing the boom (30) to an elevated intermediate position in which the main boom section (35) is spaced from the boom support (90) and the jib disk assembly ( 50) is located vertically above the fastener assembly (100); b. releasing the hoisting cable (82) and thereby lowering the object suspension device (85) suspended from the hoist cable under the jib disk assembly (50), continuing the lowering until the object suspension device reaches the securing assembly (100), c. securing the object hanging device (85) to the securing assembly (100), d. lowering the main boom section (35) towards the boom support (9) by means of the float assembly combined with hauling in the hoist cable (82), and optionally also combined with employing the variable length stiffening mechanism (60) so that the tip end (43) of the jib member (41) is pulled toward the securing assembly until the main boom section rests on the boom support (90) in the boom parking position. 12. Vaartuig volgens conclusie 11, waarbij het vaartuig verder een jibtipuiteinde- ondersteuningsinrichting (120) nabij het vastzetsamenstel omvat voor de object- ophanginrichting (85), waarbij de giekparkeerroutine omvat het in lastdragende aangrijping brengen van het tipuiteinde (43) van het jibelement met de jibtipuiteinde- ondersteuningsinrichting, zodat in de parkeerpositie van de giek een deel van het gewicht van de giek op de gieksteun rust en een deel van het gewicht van de giek op de jibtipuiteinde- ondersteuningsinrichting rust.The vessel of claim 11, wherein the vessel further comprises a jib tip end support device (120) proximate the locking assembly for the object suspension device (85), the boom parking routine comprising bringing the tip end (43) of the jib member into load bearing engagement with the jib-tip end support device so that in the boom parking position, some of the weight of the boom rests on the boom support and part of the weight of the boom rests on the jib-tip end support device. 13. Vaartuig volgens conclusie 11 of 12, waarbij het vastzetsamenstel (100), en optioneel ook de jibtipuiteinde-ondersteuningsinrichting (120), zich dichter bij de zwenklager (15) bevinden dan het bovenste einde van de hoofdgieksectie in de parkeerpositie daarvan op de gieksteun, zodat het jibelement zich vanaf het bovenste einde van de hoofdgieksectie inwaarts uitstrekt ten opzichte van de hoofdgieksectie.The craft of claim 11 or 12, wherein the tie down assembly (100), and optionally also the jib tip end support device (120), are closer to the swing bearing (15) than the top end of the main boom section in its parking position on the boom support so that the jib member extends inwardly from the main boom section from the upper end of the main boom section. 14. Vaartuig volgens één of meer van conclusies 11-13, waarbij het vaartuig een automatische regelinrichting omvat die is ingericht en geprogrammeerd om de stappen a., b., end. van conclusie 1 automatisch uit te voeren.Vessel according to one or more of claims 11-13, wherein the vessel comprises an automatic control device configured and programmed to perform steps a., B., And end. of claim 1 automatically. -16 --16 - 15. Vaartuig volgens één of meer van conclusies 11-14, waarbij het vaartuig een marien vaartuig (1) van het jack-up type is omvattende: - een romp (2) met een hoofddek (3), -ten minste drie jack-up poten (6a-d), - meerdere hefeenheden (7), die elk bij een respectieve jack-up poot betrokken zijn, en zijn ingericht om de respectieve jack-up poot verticaal ten opzichte van de romp te bewegen, en om het vaartuig in een werkzame positie te brengen waarin de poten de zeebodem aangrijpen en de romp zich boven het waterniveau bevindt.Vessel according to one or more of claims 11-14, wherein the vessel is a marine vessel (1) of the jack-up type comprising: - a hull (2) with a main deck (3), -at least three jack- up legs (6a-d), - multiple lifting units (7), each involved in a respective jack-up leg, and arranged to move the respective jack-up leg vertically with respect to the hull, and to move the vessel into an operative position in which the legs engage the seabed and the hull is above the water level. 18. Vaartuig volgens conclusie 15, waarbij de kraan (20) een om-de-poot-kraan is die een aan de romp bevestigde voet (10) omvat, waarbij het zwenklager op de voet wordt ondersteund en zich om een jack-up poot (6a) van het vaartuig uitstrekt, en waarbij de draaibare bovenbouw door het zwenklager wordt ondersteund.The vessel of claim 15, wherein the crane (20) is an around-the-leg crane comprising a base (10) attached to the hull, the pivot bearing being supported on the base and surrounding a jack-up leg. (6a) extends from the vessel, and wherein the rotatable superstructure is supported by the pivot bearing. 17. Vaartuig volgens één of meer van de conclusies 11-16, waarbij de hoofdgieksectie (35) een paar giekpoten (35a,b) omvat, welke aan het bovenste einde aan elkaar zijn verbonden via een kopstructuur van de hoofdgieksectie, waarbij bijv. de kopstructuur (38) een wipperhijselement (39) ondersteunt die zich buiten de hoofdgieksectie uit in een centraal vlak van de hoofdgieksectie uitstrekt, en waarbij de jibsectie (40) scharnierbaar met de kopstructuur van de hoofdgieksectie is verbonden.A craft according to any one of claims 11-16, wherein the main boom section (35) comprises a pair of boom legs (35a, b) connected together at the top end via a head structure of the main boom section, e.g. head structure (38) supports a rocker hoist (39) that extends outside the main boom section in a central plane of the main boom section, and wherein the jib section (40) is pivotally connected to the head structure of the main boom section. 18. Vaartuig volgens ten minste conclusies 15 en 17, waarbij in de giekparkeerroutine, de hoofdgieksectie (35) is uitgelijnd met een jack-up poot (6b) van het vaartuig en over deze jack-up poot wordt neergelaten zodat in de parkeerpositie de giekpoten (35a,b) van de hoofdgieksectie zich aan tegenovergelegen zijden van de jack-up poot bevinden.Vessel according to at least claims 15 and 17, wherein in the boom parking routine, the main boom section (35) is aligned with a jack-up leg (6b) of the vessel and is lowered over this jack-up leg so that in the parking position the boom legs (35a, b) of the main boom section are on opposite sides of the jack-up leg. 19. Vaartuig volgens ten minste conclusie 17, waarbij het jibelement (41) een driehoekig jibelementframe omvat, waarbij het jibschijvensamenstel aan een tipuiteinde van het driehoekige jibelementframe is bevestigd, waarbij een basis van het driehoekige jibelementframe scharnierbaar met de kopstructuur (38) van de hoofdgieksectie is verbonden.The craft of at least claim 17, wherein the jib member (41) comprises a triangular jib member frame, the jib disk assembly being attached to a tip end of the triangular jib member frame, a base of the triangular jib member frame pivotable with the head structure (38) of the main boom section. is connected. 20. Vaartuig volgens ten minste conclusie 17, waarbij de jibstrut (45) een jibstrutframe omvat dat een paar radiale jibstrutelementen heeft die zich elk radiaal van een respectief transversaal eindgedeelte van de kopstructuur van de hoofdgieksectie uitstrekken en scharnierbaar met de kopstructuur van de hoofdgieksectie zijn verbonden.The craft of at least claim 17, wherein the jibstrut (45) comprises a jibstrut frame having a pair of radial jibstrual elements each extending radially from a respective transverse end portion of the head structure of the main boom section and pivotally connected to the head structure of the main boom section. .
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WO2018088900A1 (en) * 2016-11-11 2018-05-17 Itrec B.V. Marine crane vessel and method of operation
WO2018208158A1 (en) * 2017-05-12 2018-11-15 Itrec B.V. Hoisting crane for use on an offshore vessel and method of operation

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WO2016159762A2 (en) * 2015-04-02 2016-10-06 Itrec B.V. Pedestal crane assembly and hoist block storage and exchange device
WO2018088900A1 (en) * 2016-11-11 2018-05-17 Itrec B.V. Marine crane vessel and method of operation
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