CN215245370U

CN215245370U - Floating-support installation ship-entering guide cable device

Info

Publication number: CN215245370U
Application number: CN202121789258.6U
Authority: CN
Inventors: 黄木; 伦灿章; 王永田; 邵奋
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-12-21
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a floating-support installation shipboard cable guide device, which comprises a first pipe section, a second pipe section, a third pipe section and support legs; the first pipe section is arranged perpendicular to the ship body deck, and the lower end of the first pipe section is fixed on the ship body deck; the second pipe section is horizontally arranged, one end of the second pipe section is fixed on the outer wall of the first pipe section, and the other end of the second pipe section horizontally points to the ship entering direction; one end of the third pipe section is fixed on the other end of the second pipe section, and the other end of the third pipe section points upwards in the ship entering direction in an inclined mode; the upper ends of the supporting legs are fixed on the outer wall of the first pipe section, and the lower ends of the supporting legs are fixed on the deck of the ship body. The utility model relates to a mooring rope guider that is arranged in the barge float-over installation process.

Description

Floating-support installation ship-entering guide cable device

Technical Field

The utility model relates to an ocean engineering installation technique, more specifically say, relate to a float and hold in palm installation entry fairlead device.

Background

With the increasing demand of human beings for clean energy, the construction of offshore wind power at home and abroad is developed rapidly, and in order to obtain more abundant wind resources, the offshore distance of an offshore wind farm is more and more far, so that a converter station is required to be established in the wind farm to transmit wind energy to the shore in a high-voltage direct-current mode with lower line loss. At present, the weight and the space size of the upper blocks of the converter stations which are built and built globally are large, and the blocks cannot be hoisted, and the blocks are all installed on the sea by adopting a floating method.

The structure of a platform jacket installed by using a floating method is generally designed into two parts with axial symmetry at the position close to the water surface, and a groove with two open ends is formed. The width of the groove is slightly larger than the width of the ship, the underwater depth of the groove is larger than the draft of the installation ship, so that the floating installation ship loaded with the upper module blocks can drive in along the symmetrical axis of the groove, the jacket is in butt joint with the upper module blocks in a ship ballast mode after the floating installation ship reaches a proper position, the weight of the upper module blocks is completely transferred to the jacket, the floating installation ship continues to carry out ballast until enough clearance is reserved between the ship body and the upper module blocks, and then the floating installation ship slowly withdraws from the space between the jacket.

In the process of floating pontoon installation, a floating pontoon needs to be positioned, and besides a dynamic positioning mode adopted in partial deepwater water area, the floating pontoon is usually positioned by using a mooring and mooring mode. The floating pontoon mounting vessel is slowly aligned with the jacket notch under the combined action of the mooring cable and the tug, enters and gradually moves to the mounting position of the upper module block. In the process, one end of the floating installation vessel close to the notch is connected with the jacket through a pair of mooring cables. Should be the fork form to the mooring rope, one end is located the hull tip and is close to topside department, and the other end then is connected in the notch both sides that the installation ship was kept away from to the jacket for the relative position of hull and notch when adjusting into the ship, and the auxiliary control speed of advancing into the ship.

When the floating support installation ship gradually moves to the butt joint position, one end of the ship body, which enters the notch first, can be rolled out from the notch on the other side of the jacket, and when the connecting point of the cable and the jacket is higher and the rope outlet position on the deck of the ship is lower, the cross cable can reversely cross on the main deck of the ship body. At this time, the cable may scrape equipment or fittings on the main deck of the ship body, which affects the safety of ship equipment and personnel and damages the cable itself. Therefore, the cross cable needs to be limited and guided during the ship entering process.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing a float and hold in palm installation fairlead device of advancing is a mooring rope guider who is arranged in barge float and hold in the palm installation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a floating-support installation ship entry guide cable device comprises a first pipe section, a second pipe section, a third pipe section and supporting legs;

the first pipe section is arranged perpendicular to the ship body deck, and the lower end of the first pipe section is fixed on the ship body deck;

the second pipe section is horizontally arranged, one end of the second pipe section is fixed on the outer wall of the first pipe section, and the other end of the second pipe section horizontally points to the ship entering direction;

one end of the third pipe section is fixed on the other end of the second pipe section, and the other end of the third pipe section points upwards in the ship entering direction in an inclined mode;

the upper ends of the supporting legs are fixed on the outer wall of the first pipe section, and the lower ends of the supporting legs are fixed on the deck of the ship body.

Preferably, the first pipe section, the second pipe section and the third pipe section are all round steel pipes.

Preferably, the first, second and third sections are arranged to be coplanar and parallel to the mid-longitudinal section of the hull.

Preferably, the included angle between the second pipe section and the third pipe section is 30 degrees.

Preferably, the two support legs are the same in length; and is

The included angle between the two supporting legs is 90 degrees in reflection on the horizontal plane.

Preferably, a sealing cover plate is arranged at the end part of the other end of the third pipe section;

the sealing cover plate is a circular plate, a hemispherical panel or a conical surface plate.

Preferably, the outer walls of the first pipe section and the second pipe section are provided with wear-resistant layers.

Preferably, the lower ends of the first pipe section and the support legs are provided with toggle plates.

The utility model provides a float and hold in palm installation fairlead device into ship has following several beneficial effect:

1) the structure form is simple, the manufacturing period is short, and the cost is low;

2) the occupied deck space is small, and the installation is simple and easy;

3) through the design of reducing friction, the cable can be effectively prevented from being worn;

4) when the cable is accidentally broken, the cable can protect nearby personnel and equipment;

5) the device is suitable for various mooring rope materials and rope diameters, and can be repeatedly used.

Drawings

Fig. 1 is a schematic structural view of the floating-support-mounted entry fairlead of the utility model;

FIG. 2 is a schematic view in the Z direction of FIG. 1;

FIG. 3 is a schematic view of the arrangement of the floating installation entry fairlead of the present invention on a floating installation vessel;

FIG. 4 is a schematic view of the cable of the floating-support installation entry fairlead of the present invention entering the capture position when the floating-support installation entry is underway;

FIG. 5 is a schematic view of the guiding device of the present invention entering into the ship from catching position when the guiding device enters into the ship

Fig. 6 is a schematic diagram of the operation of the fairlead when the floating-support installation entry fairlead device of the utility model transfers the load during floating-support installation.

Detailed Description

In order to better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 2, the present invention provides a floating-supported installation fairlead device, which includes a first pipe section 1, a second pipe section 2, a third pipe section 3 and legs 4.

The first pipe section 1 is perpendicular to a ship deck, the lower end of the first pipe section is fixed on the ship deck in a welding mode, and the end portion of the upper end of the first pipe section is provided with a sealing cover plate 101.

The second pipe section 2 is horizontally arranged, the rear end of the second pipe section is welded and fixed on the outer wall of the first pipe section 1, the included angle between the second pipe section and the first pipe section 1 is 90 degrees, and the front end of the second pipe section points to the ship entering direction horizontally.

The rear end of the third pipe section 3 is welded and fixed on the front end of the second pipe section 2, the front end points to the ship entering direction in an upward direction, the included angle alpha between the central axis of the third pipe section 3 and the central axis of the second pipe section 2 is 30 degrees, and the front end part of the third pipe section 3 is provided with a sealing cover plate 301.

The

sealing cover plate

101, 301 may be a circular plate, a hemispherical panel or a conical plate to prevent the corrosion of the steel pipe due to water entering the steel pipe.

Landing leg 4 has two, and the upper end is all welded fastening on the outer wall of first pipeline section 1, and on the lower extreme welded fastening was on the hull deck, two landing legs 4 length the same and the contained angle between two landing legs 4 was reflection on the horizontal plane again and is 90.

The first pipe section 1, the second pipe section 2 and the third pipe section 3 are all formed by circular steel pipes to form a catching structure, and the coplanarity of the first pipe section 1, the second pipe section 2 and the third pipe section 3 is parallel to the middle longitudinal section of the ship body.

The catching structures are used in pairs and are arranged on a deck surface at one end, entering the jacket notch, of the ship body, the longitudinal position of the catching structures is close to a sealing plate at the end part of the ship, the transverse position of the catching structures is close to a side outer plate, and the left side and the right side are symmetrically arranged.

The length of each segment of the catching structure can be adjusted according to the actual situation: the first pipe section 1 is used for limiting horizontal movement of the mooring rope, the second pipe section 2 is used for limiting vertical displacement of the mooring rope, horizontal limiting failure caused by jumping of the mooring rope is prevented, and the third pipe section 3 is used for enlarging a capture range, so that the mooring rope can be captured by the ship under the designed ship entering draft and tide level.

Be equipped with the wearing layer on the outer wall of first pipeline section 1, second pipeline section 2, can take if paint lubricating grease, add measures such as polymer wear plate, reduce the hawser with the utility model discloses float and hold in the palm the slip friction of installation between the fairlead device of advancing a ship. Or the first pipe section 1 and the second pipe section 2 are provided with cable guiding balls (rollers) to change the sliding friction between the cable and the floating-support installation ship-entering cable guiding device of the utility model into rolling friction.

According to the diameter and the atress condition of hawser, can be right the utility model discloses the structure of the slip friction between the ship fairlead device is installed to the floating support is strengthened, and the mode of strengthening can be to increase stay tube, vaulting pole, increases the diameter and the wall thickness of bracket 8 or each section of increase steel pipe (first pipeline section 1, second pipeline section 2, third pipeline section 3 and landing leg 4) at the structure root (the lower extreme of first pipeline section 1, landing leg 4).

The utility model discloses the use of leading cable device is advanced in floating support installation:

during the float-over installation process, when the float-over installation vessel 6 enters the jacket slot, at which point the cross-over cables 7 have been connected to the legs at the far inside of the jacket slot, as shown in fig. 3, the cross-over cables 7 assist in controlling the speed of entry and adjusting the clearance between the vessel and the jacket.

When floating the support installation ship 6 and roll out from the jacket notch gradually, alternately hawser 7 with the utility model discloses the third pipeline section 3 contact on the floating the support installation entry fairlead 5, the utility model discloses floating the support installation entry fairlead 5 and beginning the seizure to hawser 7, as shown in fig. 4.

The cable 7 is located below the third pipe section 3 and as the vessel 6 continues to move forward, the cable 7 gradually slides down the third pipe section 3 and comes into contact with the second pipe section 2 as the cable 7 slides to the root of the third pipe section 3.

Continuing to go forward along with floating support installation ship 6, hawser 7 slides gradually to 2 roots of second pipeline section, begins to contact with first pipeline section 1, this moment the utility model discloses floating support installation is gone into ship and is led cable device 5 and accomplish the seizure of hawser 7, as shown in fig. 5, after the seizure is accomplished, the hawser enters into the utility model discloses floating support installation is gone into ship and is led cable device 5's fairlead position.

The floating installation vessel 6 finally reaches and maintains the butt position of the upper and lower blocks, during which the cable 7 is wound around the first pipe section 1 and is at about 90 degrees to the original rope outgoing direction, the second pipe section 2 prevents the cable 7 from jumping out of the top of the first pipe section 1, and the cable guide plays a normal cable guide role, as shown in fig. 6.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a float and hold in palm installation entry fairlead device which characterized in that: the support comprises a first pipe section, a second pipe section, a third pipe section and support legs;

2. The float-mounted marine fairlead of claim 1, wherein: the first pipe section, the second pipe section and the third pipe section are all round steel pipes.

3. The float-mounted marine fairlead of claim 1, wherein: the first, second and third sections are arranged to be coplanar and parallel to the mid-longitudinal section of the hull.

4. The float-mounted marine fairlead of claim 1, wherein: the included angle between the second pipe section and the third pipe section is 30 degrees.

5. The float-mounted marine fairlead of claim 1, wherein: the two support legs are same in length; and is

6. The float-mounted marine fairlead of claim 1, wherein: a sealing cover plate is arranged at the end part of the other end of the third pipe section;

7. The float-mounted marine fairlead of claim 1, wherein: and the outer walls of the first pipe section and the second pipe section are provided with anti-wear layers.

8. The float-mounted marine fairlead of claim 1, wherein: the lower ends of the first pipe section and the supporting legs are provided with toggle plates.