CN216360012U

CN216360012U - Self-propelled catamaran type crane ship

Info

Publication number: CN216360012U
Application number: CN202123325488.XU
Authority: CN
Inventors: 刘德进; 冯甲鑫; 王明玉; 鞠鹏; 王翔; 王传鹏
Original assignee: CCCC First Harbor Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Harbor Engineering Co Ltd
Current assignee: CCCC First Harbor Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Harbor Engineering Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-22
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to a self-propelled catamaran crane ship, which belongs to the technical field of crane ships and comprises a catamaran, a marine crane, an anchoring assembly, a buoyancy tank and a lifting piece, wherein the catamaran is fixedly connected with the marine crane; the catamaran comprises two sheet bodies and a deck beam connected between the two sheet bodies; the marine crane is arranged on the deck beam and close to the bow of the catamaran; the anchoring assembly comprises an anchor ingot, a hanging cable and a lifting winch, the anchor ingot is used for being sunk to the seabed, the hanging cable is connected to the anchor ingot, the lifting winch is connected to the hanging cable to receive and release the hanging cable, and the lifting winch is arranged on the deck beam; the buoyancy tank is positioned below the deck beam and between the two sheet bodies; the lifting piece is used for lifting the buoyancy tank and is connected between the buoyancy tank and the deck beam. The self-propelled twin-hull crane ship has good stability and large deck area, and can meet the installation requirement of a large-capacity offshore wind turbine.

Description

Self-propelled catamaran type crane ship

Technical Field

The utility model belongs to the technical field of crane ships, and particularly relates to a self-propelled catamaran.

Background

The floating installation of the offshore wind turbine is one of the common installation modes at present, the capacity of the offshore wind turbine is continuously increased along with the development of the offshore wind turbine, the requirements of the installation operation conditions of the offshore wind turbine are also continuously improved, and especially the requirements on the stability of a crane ship are higher and higher. The existing crane ships are all single ships, the stability of the crane ships is more and more incapable of meeting the hoisting requirement of a large-capacity fan, and the deck area of the crane ships is more and more incapable of meeting the requirement of offshore fan installation operation. Therefore, how to provide a crane ship with good stability and large deck area to meet the requirement of offshore wind power development is a technical problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a self-propelled catamaran crane ship which is good in stability and large in deck area and can meet the installation requirement of a high-capacity offshore wind turbine.

The utility model provides a self-propelled catamaran crane ship, comprising:

the catamaran comprises two sheet bodies and a deck beam connected between the two sheet bodies;

the marine crane is arranged on the deck beam and is close to the bow of the catamaran;

the anchoring assembly comprises an anchor ingot, a hanging cable and a lifting winch, wherein the anchor ingot is used for being sunk to the seabed, the hanging cable is connected to the anchor ingot, the lifting winch is connected to the hanging cable to receive and release the hanging cable, and the lifting winch is arranged on the deck beam;

the buoyancy tank is positioned below the deck beam and between the two sheet bodies;

the lifting piece is used for lifting the buoyancy tank and is connected between the buoyancy tank and the deck beam.

In some of these embodiments, the anchor assemblies are at least 4 sets.

In some of these embodiments, the anchor assemblies are symmetrically disposed relative to the width-wise centerline of the catamaran and the anchor assemblies are symmetrically disposed relative to the length-wise centerline of the catamaran.

In some of these embodiments, the buoyancy tank is near the bow of the catamaran.

In some of these embodiments, there are two pontoons, the two pontoons being symmetrically disposed about the longitudinal centerline of the catamaran.

In some of these embodiments, the lifting members are hydraulic rams and each pontoon is connected to the deck beam by a plurality of hydraulic rams.

In some of these embodiments, the self-propelled catamaran further includes a transfer assembly for adjusting a planar position of the catamaran, the transfer assembly including mooring lines for anchoring to the sea floor and a transfer winch connected to the mooring lines for retrieving the mooring lines, the transfer winch being mounted on the deck beam.

In some of these embodiments, the catamaran is equipped with a DP dynamic positioning system.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. the self-propelled catamaran crane provided by the utility model adopts a catamaran structure, has better stability compared with a monohull ship, has larger deck operation area and is convenient for storing and installing fan components;

2. the anchoring assembly is arranged on the self-propelled twin-hull crane ship, an anchor spindle of the anchoring assembly can be lowered to the seabed, and the swinging motion of the ship body can be reduced and the stability of the ship body can be improved when the twin-hull ship is subjected to waves;

3. the self-propelled catamaran crane ship provided by the utility model is also provided with the buoyancy tank which can be lowered into water, and when a large-tonnage fan component is hoisted, the buoyancy provided by the buoyancy tank can increase the buoyancy of the ship body, improve the hoisting capacity and meet the hoisting requirement of the large-tonnage fan component.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a front view of a self-propelled catamaran crane vessel according to an embodiment of the present invention;

FIG. 2 is a side view of a self-propelled catamaran crane provided in accordance with an embodiment of the present invention with pontoons in a raised condition;

FIG. 3 is a side view of a self-propelled catamaran vessel according to an embodiment of the present invention in a submerged position in a pontoon;

fig. 4 is a top view of a self-propelled catamaran crane vessel according to an embodiment of the present invention.

In the figure:

1. a catamaran; 11. a sheet body; 12. a deck beam; 2. a marine crane; 3. an anchor assembly; 31. anchoring; 32. hoisting cables; 33. hoisting a winch; 4. a ship moving assembly; 41. mooring an anchor line; 42. a ship moving winch; 5. a buoyancy tank; 6. a lifting member.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, an embodiment of the present invention provides a self-propelled catamaran crane including a catamaran 1, a marine crane 2, an anchor assembly 3, a buoyancy tank 5, and a lifting member 6. The catamaran 1 comprises two sheet bodies 11 and a deck beam 12 connected between the two sheet bodies 11; the marine crane 2 is arranged on the deck beam 12 and close to the bow of the catamaran 1, is used for installing a fan and is mainly used for installing a fan tower, a cabin, a hub, blades and the like; the anchoring assembly 3 plays a role of stabilizing the hull, and includes an anchor 31 for sinking to the sea bottom, a hoist cable 32 connected to the anchor 31, and a lifting winch 33 connected to the hoist cable 32 to reel in and pay off the hoist cable 32, the lifting winch 33 being installed on the deck beam 12; the buoyancy tank 5 is used for increasing the buoyancy of the ship body when the marine crane 2 hoists a large-tonnage fan component, is positioned below the deck beam 12 and is positioned between the two sheet bodies 11; the lifting member 6 is used to lift the pontoon 5, which is connected between the pontoon 5 and the deck beam 12.

The working process of the self-propelled catamaran is as follows: when the self-propelled catamaran reaches the construction installation position, the hoisting winch 33 is controlled to release the hoisting cable 32 so as to lower the anchor 31 to the seabed, and meanwhile, a certain pretightening force is applied to the hoisting cable 32, so that when the catamaran 1 is subjected to waves, the swinging motion of the catamaran body can be reduced through the lowered anchor 31, and the stability of the catamaran body is improved; the marine crane 2 is used for mounting structures such as a tower cylinder, a cabin, a hub, blades and the like of an offshore wind turbine, wherein when the tonnage of a wind turbine part hoisted by the marine crane 2 is large, the buoyancy tank 5 is lowered to the position below the water surface by the lifting piece 6, so that the buoyancy provided by the buoyancy tank 5 can be used for increasing the buoyancy of a ship body, the hoisting capacity is improved, and the hoisting requirement of the large-tonnage wind turbine part is met; after the fan installation is completed, the anchor 31 is lifted by the lifting winch 33 and the buoyancy tank 5 is lifted by the lifting member 6 to reduce the buoyancy resistance, and the crane ship can move to the next construction installation location.

The self-propelled catamaran crane ship adopts a catamaran 1 structure, has better stability compared with a monohull ship, has larger deck operation area, and is convenient for storing and installing fan components. Meanwhile, the anchoring assembly 3 is arranged on the self-propelled catamaran, and the anchor spindle 31 can be lowered to the seabed, so that the swaying motion of the catamaran body can be reduced when the catamaran 1 is subjected to waves, and the stability of the catamaran body can be improved. In addition, above-mentioned self-propelled binary formula jack-up ship still is equipped with the flotation tank 5 that can transfer to aquatic, and when hoist and mount large-tonnage fan part, the buoyancy that provides through flotation tank 5 can increase hull buoyancy, improves the lifting capacity, can satisfy large-tonnage fan part hoist and mount needs.

It should be noted that, in the anchor assemblies 3, in order to improve the hull stability, it is preferable that at least 4 sets of anchor assemblies 3 are provided, as shown in fig. 4, the anchor assemblies 3 are symmetrically disposed with respect to the widthwise centerline of the catamaran 1, and the anchor assemblies 3 are also symmetrically disposed with respect to the lengthwise centerline of the catamaran 1. It should also be noted that the anchor 31 in the anchoring assembly 3 is preferably made of steel shell concrete to increase the weight and life of the anchor 31.

The buoyancy tank 5 is provided near the bow of the catamaran 1 because the marine crane 2 is provided near the bow of the catamaran 1, and the buoyancy tank 5 is also provided near the bow of the catamaran 1 in order to increase the buoyancy of the marine crane 2. In order to keep the hull stable, as shown in fig. 2 and 3, there are two pontoons 5, and the two pontoons 5 are arranged symmetrically with respect to the longitudinal centerline of the catamaran 1.

With respect to the lifting member 6, it should be noted that, as shown in fig. 2 and 3, in this embodiment, the lifting member 6 is embodied as a hydraulic cylinder, and each buoyancy tank 5 is connected to the deck beam 12 through a plurality of hydraulic cylinders.

In order to facilitate adjustment of the planar position of the catamaran 1, as shown in fig. 1 and 4, the self-propelled catamaran further includes a transfer assembly 4 for adjusting the planar position of the catamaran 1, the transfer assembly 4 including mooring anchor lines 41 for anchoring to the sea bottom and a transfer winch 42 connected to the mooring anchor lines 41 to receive and release the mooring anchor lines 41, the transfer winch 42 being installed on the deck beam 12. The mooring anchor lines 41 are reeled and paid off by the ship moving winch 42, so that the catamaran 1 can be accurately moved. It should be noted that, as shown in fig. 4, the boat moving assemblies 4 are arranged in multiple groups.

Furthermore, in order to achieve accurate positioning of the vessel for ease of construction, it is preferred that the catamaran 1 is also equipped with a DP dynamic positioning system. Through the DP power positioning system, the transverse flow can be resisted to prevent the ship position from generating transverse offset, so that the stability of the ship body can be kept in the process of installing the fan, and the short-distance ship moving and positioning can be realized.

Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. Self-propelled catamaran crane ship, characterized by, includes:

the anchoring assembly comprises an anchor ingot, a hoisting cable and a lifting winch, wherein the anchor ingot is used for being sunk to the seabed, the hoisting cable is connected to the anchor ingot, the lifting winch is connected to the hoisting cable so as to receive and release the hoisting cable, and the lifting winch is arranged on the deck beam;

and the lifting piece is used for lifting the floating box and is connected between the floating box and the deck beam.

2. Self-propelled catamaran crane vessel according to claim 1, wherein said anchoring assemblies are at least 4 groups.

3. A self-propelled catamaran crane vessel according to claim 2, wherein the anchoring assemblies are symmetrically disposed with respect to a widthwise centerline of the catamaran and the anchoring assemblies are symmetrically disposed with respect to a lengthwise centerline of the catamaran.

4. The self-propelled catamaran crane vessel of claim 1, wherein the pontoon is near a bow of the catamaran.

5. The self-propelled catamaran crane vessel according to claim 4, wherein the number of buoyancy tanks is two, and the two buoyancy tanks are arranged symmetrically with respect to a longitudinal centerline of the catamaran.

6. The self-propelled catamaran crane vessel according to claim 1 or 5, wherein the lifting member is a hydraulic ram, and each of the pontoons is connected to the deck beam by a plurality of the hydraulic rams.

7. The self-propelled catamaran crane according to claim 1, further comprising a transfer assembly for adjusting a planar position of the catamaran, the transfer assembly including mooring lines for anchoring to a sea floor and a transfer winch connected to the mooring lines for retrieving the mooring lines, the transfer winch being mounted on the deck beam.

8. Self-propelled catamaran crane vessel according to claim 1, wherein said catamaran vessel is equipped with a DP dynamic positioning system.