CN116247569A - Motion compensation type submarine cable laying system - Google Patents
Motion compensation type submarine cable laying system Download PDFInfo
- Publication number
- CN116247569A CN116247569A CN202310043356.2A CN202310043356A CN116247569A CN 116247569 A CN116247569 A CN 116247569A CN 202310043356 A CN202310043356 A CN 202310043356A CN 116247569 A CN116247569 A CN 116247569A
- Authority
- CN
- China
- Prior art keywords
- submarine cable
- frame body
- conveying frame
- conveying
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
-
- 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
- B63B35/04—Cable-laying vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/20—Package-supporting devices
- B65H49/32—Stands or frameworks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/34—Arrangements for effecting positive rotation of packages
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a motion compensation type submarine cable laying system, relates to the technical field of submarine cable laying devices, and solves the problems that a laying ship is subjected to periodic heave due to wave action, cable laying is easily affected, cable damage is caused, the existing submarine cable laying needs to be carried out in a calm time at the sea surface, the laying work is limited, and the construction period is prolonged. Comprises a ground turntable and a conveying frame body, wherein one end of the conveying frame body is hinged with a ship body, and the other end of the conveying frame body is provided with a compensation driving piece for driving the free end to swing up and down; the conveying frame body is also provided with a plurality of steering devices, the submarine cable is stored in the ground turntable, and the submarine cable is laid after being wound around a plurality of circles through the steering devices and leaves the ship body from the free end of the conveying frame body. The influence of continuous heave of the ship body caused by waves can be reduced, and the effects of improving the laying effect and accelerating the construction period are achieved by encircling the back-twist submarine cable for many times.
Description
Technical Field
The invention relates to the technical field of submarine cable laying devices, in particular to a motion compensation submarine cable laying system.
Background
The submarine cable, also called submarine cable, is wrapped by insulating materials, is paved on the sea floor, is used for telecommunication transmission, can be divided into a submarine power cable and a submarine communication cable, and is prevented from being damaged due to too small bending radius or too large tension by controlling the water inlet angle and the laying tension of the cable by controlling the sailing speed and the cable releasing speed of a laying ship when the submarine cable is paved; there is also a need to constantly monitor and adjust, control the speed of travel, direction of the laying vessel and speed of cabling to bypass rough places and rocks to avoid damaging the cabling. However, since the laying ship is subjected to periodic heave due to wave action, cable laying is easily affected, and cable damage is caused, the conventional submarine cable laying needs to be performed in a calm time at the sea surface, so that the laying work is limited, and the construction period is prolonged.
Disclosure of Invention
The invention aims to provide a motion compensation type submarine cable laying system which can reduce the influence of continuous heave of a ship body caused by waves, improve the laying effect by encircling a back-twisted submarine cable for a plurality of times and accelerate the construction period.
The technical aim of the invention is realized by the following technical scheme:
a motion compensation type submarine cable laying system comprises a ground turntable and a conveying frame body, wherein one end of the conveying frame body is hinged to a ship body, and a compensation driving piece for driving the free end to swing up and down is arranged at the other end of the conveying frame body; the conveying frame body is also provided with a plurality of steering devices, the submarine cable is stored in the ground turntable, and the submarine cable is laid after being wound around a plurality of circles through the steering devices and leaves the ship body from the free end of the conveying frame body.
Still further, the compensation driving piece comprises a plurality of lifting hydraulic cylinders, wherein the cylinder body of each lifting hydraulic cylinder is hinged to the ship body/the conveying frame body, and the output shaft is hinged to the conveying frame body/the ship body.
Further, the steering device comprises a plurality of circular arc guide pieces which are distributed up and down, the submarine cable is turned back and forth from the ground turntable upwards through the circular arc guide pieces in sequence, and the submarine cable is untwisted around a plurality of circles.
Still further, the circular arc guide is including dismantling the circular arc skeleton of connection on the carriage body, and circular arc skeleton cross section is the C shape, and inside is used for wearing to establish the sea cable, and on the circular arc skeleton bottom plate along circumference distribution there are a plurality of stopper, and the stopper limit is located the sea cable outside.
Still further, can dismantle in the circular arc skeleton and connect the direction chain, the direction chain includes a plurality of chain links that connect gradually, and the inboard butt of chain link is in circular arc skeleton inside wall, still is connected with a plurality of vertical guide rolls in the chain link, and guide roll periphery part protrusion is in the chain link outside to with the inboard butt of sea cable.
Further, the diameters of the guide rollers decrease from two ends to the middle part to form a middle concave; the periphery of the submarine cable is abutted in the concave of the guide roller.
Furthermore, two arc guide members are arranged, one is arranged on the lower side of the conveying frame body and is positioned at one end of the conveying frame body close to the compensation driving member, and the other is arranged on the upper side of the conveying frame body and is positioned at one end of the conveying frame body close to the hinge shaft.
Furthermore, the upper side and the lower side of the conveying frame body are respectively provided with a sliding rail and a sliding plate sliding along the sliding rails, the arc guide piece is detachably arranged on the corresponding sliding plate, and the sliding plate is fixed on the conveying frame body through bolts.
Still further, be connected with first leading wheel on the hull, be connected with the second leading wheel on the carriage body, sea cable butt between ground carousel and the below circular arc guide is in first leading wheel top, sea cable butt between below circular arc guide and the top circular arc guide is in second leading wheel top.
And when the compensation driving piece drives the outer end of the conveying frame to swing up and down, the lifting compensation device drives the first guide wheel to swing up and down correspondingly.
Still further, still be connected with the pulling device that is used for driving the submarine cable to lay on the carriage body, pulling device includes two conveyer about, and submarine cable wears to locate between two conveyer, and simultaneously the conveying is carried submarine cable forward through conveyer.
Further, the conveying frame body is connected with a conveying lifting mechanism and a transmission guide rail, and the conveying device above the conveying frame body drives the conveying lifting mechanism to lift and the transmission guide rail to guide lifting movement.
In summary, the invention has the following beneficial effects:
the influence caused by continuous heave of the ship body under the wave action is reduced through the compensation driving piece, and the cable is prevented from being damaged due to too small bending radius or too large tension when the submarine cable is laid and compensated by being matched with the lifting compensation device;
the submarine cable is twisted back by multiple circles through the circular arc guide piece, so that the laying effect is improved;
the sliding plate can move the arc framework to different positions so as to be suitable for the ground turntables at different positions on different ship bodies, the detachable arc framework and the guide chain with the detachable inside can adapt to submarine cables with different bending radius requirements, the submarine cables are limited between the guide chain and the guide block, and the stability of encircling work of the submarine cables is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a schematic view of the arc guide of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of another embodiment of a circular arc guide;
fig. 6 is a schematic view of the structure of the pulling device of the present invention.
In the figure, 1, a ground turntable; 2. a conveying frame body; 21. a lifting hydraulic cylinder; 22. a cross beam; 23. a vertical beam; 24. a connecting beam; 3. a circular arc guide; 31. a circular arc framework; 32. a limiting block; 4. a guide chain; 41. a chain link; 42. a guide roller; 43. a chain fixing bolt; 5. a slip plate; 61. a first guide wheel; 62. a second guide wheel; 7. a lifting compensation device; 8. a pulling device; 81. a transfer device; 82. a conveying lifting mechanism; 83. and (5) transmitting the guide rail.
Detailed Description
The following description of the embodiments of the invention is further illustrated in the accompanying drawings, and the examples are not meant to limit the invention.
A motion compensation type submarine cable laying system is shown in figure 1, and comprises a ground turntable 1 and a conveying frame body 2, wherein the ground turntable 1 stores and releases submarine cables by rotation, one end of the conveying frame body 2 is hinged to a ship body, the other end of the conveying frame body is provided with a compensation driving piece for driving the free end to swing up and down, and the compensation driving piece drives the tail end of the conveying frame body 2 to correspondingly move up and down according to the up-and-down fluctuation of a ship trailing wave so as to compensate, so that the height position of the submarine cables leaving the ship body is kept unchanged;
in the embodiment, a ground turntable 1 is arranged in a ship body, and a submarine cable passes through a deck and is paved through a conveying frame body 2; the compensation driving piece comprises two lifting hydraulic cylinders 21, the cylinder body of each lifting hydraulic cylinder 21 is hinged to the conveying frame body 2, the output shaft is hinged to the ship body, and the compensation driving piece can be replaced by other power devices for driving the free end of the conveying frame body 2 to swing up and down.
As shown in fig. 1 and 2, a mounting seat is pre-mounted at the front end of the ship body and is used for mounting a hinging seat at one end of the conveying frame body 2, and two hinging seats are symmetrically pre-mounted at the tail of the ship body and are used for hinging the output end of the lifting hydraulic cylinder 21;
the conveying frame body 2 comprises two cross beams 22, a plurality of connecting beams 24 which are vertically welded between the two cross beams 22, and vertical beams 23 which are welded at the outermost ends of the cross beams 22, wherein the two ends of each vertical beam 23 are respectively hinged with the corresponding lifting hydraulic cylinder 21,
the transverse beam 22 is symmetrically connected with transverse conveying tracks for guiding sea cables to leave at two sides near one end of the lifting hydraulic cylinder 21, the vertical beams 23 are symmetrically fixed with cable laying tracks with track widths gradually expanding towards the outer ends, the cable laying tracks gradually point downwards towards the seabed direction along the horizontal direction of the transverse conveying tracks, and the sea cables leave from the transverse conveying tracks and the cable laying tracks at one side according to the winding direction in the ground turntable 1 and the number of winding turns in the conveying frame body 2, so that seabed laying work is carried out.
As shown in fig. 1, the conveying frame body 2 is further provided with a plurality of steering devices, sea cables are stored in the ground turntable 1, and after a plurality of turns of the sea cables are surrounded by the steering devices, the sea cables leave the ship body from the free end of the conveying frame body 2 to be paved; the steering device comprises a plurality of arc guide pieces 3 which are distributed up and down, the submarine cable is turned back and forth from the ground turntable 1 from bottom to top sequentially through the arc guide pieces 3, and the submarine cable is back-twisted around a plurality of circles.
In this embodiment, two circular arc guiding members 3 are provided, one is installed at the lower side of the conveying frame 2 and located at one end of the conveying frame 2 close to the lifting hydraulic cylinder 21, and the other is installed at the upper side of the conveying frame 2 and located at one end of the conveying frame 2 close to the hinge shaft.
As shown in fig. 3 and 4, in order to improve the guiding and limiting effect on the submarine cable, the circular arc guiding member 3 comprises a circular arc framework 31 detachably connected to the conveying frame body 2, the cross section of the circular arc framework 31 is in a C shape, the inside of the circular arc framework 31 is used for penetrating the submarine cable, the two ends of the circular arc framework 31 can be connected with flared bellmouths to guide the submarine cable to enter, a plurality of limiting blocks 32 are circumferentially distributed on the bottom plate of the circular arc framework 31, the limiting blocks 32 are limited on the outer side of the submarine cable, and an arc-shaped channel for the submarine cable to penetrate and fold back is formed.
As shown in fig. 3 and 5, a guide chain 4 is detachably connected in the arc framework 31, the guide chain 4 comprises a plurality of chain links 41 which are sequentially connected, the inner sides of the chain links 41 are abutted against the inner side walls of the arc framework 31, a plurality of vertical guide rollers 42 are also connected in the chain links 41, and the peripheral parts of the guide rollers 42 are protruded out of the chain links 41 and are abutted against the inner sides of submarine cables;
the diameter of the guide roller 42 decreases from two ends to the middle to form a middle recess; the periphery of the submarine cable is abutted in the concave of the guide roller 42 under the action of tension; the chain fixing bolts 43 are fixed at both ends of the arc frame 31, and both end positions of the guide chain 4 are fixed by the chain fixing bolts 43.
In this embodiment, the bottom plate of the limiting block 32 is slightly spaced from the submarine cable, and the submarine cable is tightly pressed in the periphery recess of the guide roller 42 by the pulling force in the laying state, and is prevented from being deviated under the dead weight by the bottom plate of the limiting block 32, and is limited on the outer side of the submarine cable by the upper portion of the limiting block 32.
As shown in fig. 2 and 3, in order to facilitate the adjustment of the positions of the two arc frameworks 31 according to the position of the ground turntable 1 on the ship body, the upper and lower sides of the carriage body 2 are respectively provided with a sliding rail and a sliding plate 5 sliding along the sliding rail, the arc guide 3 is detachably mounted on the corresponding sliding plate 5 through bolts, and the sliding plate 5 is fixed on one or two connecting beams 24 at the corresponding position of the carriage body 2 through bolts.
As shown in fig. 1, in order to guide the submarine cable into two circular arc guide pieces 3 in turn, a first guide wheel 61 is connected to the ship body, one or two second guide wheels 62 are connected to the conveying frame body 2, the submarine cable between the ground turntable 1 and the lower circular arc guide piece 3 is abutted above the first guide wheel 61, the submarine cable between the lower circular arc guide piece 3 and the upper circular arc guide piece 3 is abutted above the second guide wheel 62 or between the two second guide wheels 62, the submarine cable starts from the ground turntable 1, is guided to enter the lower circular arc guide piece 3 at an angle close to the horizontal for steering through the first guide wheel 61, is guided to enter the upper circular arc guide piece 3 at an angle close to the horizontal for steering through the second guide wheel 62, and finally extends out of the ship body for laying.
As shown in fig. 1, the hull is further connected with a lifting compensation device 7 for driving the first guide wheel 61 to move up and down, the lifting compensation device 7 can be a lifting device such as a hydraulic cylinder, and the output end of the lifting compensation device can also improve the safety through a buffer device; when the compensation driving piece drives the outer end of the conveying frame body 2 to swing up and down, the lifting compensation device 7 drives the first guide wheel 61 to swing up and down correspondingly, so that overstretching or separation of the submarine cable at the position of the first guide wheel 61 during compensation is avoided.
As shown in fig. 2, a pulling device 8 for driving the submarine cable to be laid is further connected to the conveying frame body 2, in this embodiment, an installation base plate is fixed to the bottom of the conveying frame body 2, and the pulling device 8 and the second guide wheel 62 are installed and fixed to two corresponding sides of the installation base plate according to the winding direction of the submarine cable in the ground turntable 1, and the installation base plate is reinforced by transverse and longitudinal channel steel;
as shown in fig. 6, the pulling device 8 comprises an upper conveying device 81 and a lower conveying device 81, sea cables are arranged between the two conveying devices 81 in a penetrating way, the sea cables are pulled forwards through the conveying devices 81 in a conveying way, friction plates are fixed on the outer sides of all the chain plates, V-shaped grooves are formed in the middle of the outer sides of the friction plates and are arranged along the length direction of the machine body, a plurality of abutting rollers are connected to the inner sides of the chain plate conveying belts, the abutting rollers are abutted to the inner sides of the chain plates, so that the two chain plate conveying belts are kept at a fixed distance from each other under the action of the abutting rollers on the sides close to each other, the opposite friction plates on the upper conveying device 81 and the lower conveying device are abutted to the periphery of the sea cables, the V-shaped grooves are beneficial to improving friction areas, and the sea cables are pulled forwards through friction force;
the conveying elevating mechanism 82 and the transmission guide rail 83 are connected to the mounting base plate of the conveying frame body 2, the upper conveying device 81 is driven to ascend and descend through the conveying elevating mechanism 82, the transmission guide rail 83 is guided to ascend and descend, the conveying elevating mechanism 82 can be an existing elevating device such as a hydraulic cylinder, the transmission rail can be set to be an existing guide rail such as a T-shaped groove, the upper conveying device 81 is arranged up and down along the transmission guide rail 83 through a side T-shaped block, the distance between the two conveying devices 81 before and after movement is guaranteed to be uniform, and the submarine cable stress is enabled to be more uniform.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present invention.
Claims (12)
1. A motion compensated submarine cable laying system characterized by: comprises a ground turntable and a conveying frame body, wherein one end of the conveying frame body is hinged with a ship body, and the other end of the conveying frame body is provided with a compensation driving piece for driving the free end to swing up and down; the conveying frame body is also provided with a plurality of steering devices, the submarine cable is stored in the ground turntable, and the submarine cable is laid after being wound around a plurality of circles through the steering devices and leaves the ship body from the free end of the conveying frame body.
2. A motion compensated submarine cable laying system according to claim 1, wherein: the compensation driving piece comprises a plurality of lifting hydraulic cylinders, the cylinder bodies of the lifting hydraulic cylinders are hinged to the ship body/conveying frame body, and the output shafts are hinged to the conveying frame body/the ship body.
3. A motion compensated submarine cable laying system according to claim 1 or 2, wherein: the steering device comprises a plurality of arc guide pieces which are distributed up and down, and the submarine cable is turned back and forth from the ground turntable upwards through each arc guide piece in sequence and surrounds a plurality of circles to carry out back torsion.
4. A motion compensated submarine cable laying system according to claim 3, wherein: the circular arc guide piece is including dismantling the circular arc skeleton of connection on the carriage body, and circular arc skeleton cross section is C shape, and inside is used for wearing to establish the sea cable, and along circumference distribution there being a plurality of stopper on the circular arc skeleton bottom plate, the stopper limit is located the sea cable outside.
5. A motion compensated submarine cable laying system according to claim 4, wherein: the guide chain comprises a plurality of links which are connected in sequence, the inner sides of the links are abutted to the inner side walls of the arc frameworks, a plurality of vertical guide rollers are further connected in the links, and the peripheral parts of the guide rollers are protruded out of the outer sides of the links and are abutted to the inner sides of submarine cables.
6. A motion compensated submarine cable laying system according to claim 5, wherein: the diameters of the guide rollers decrease gradually from two ends to the middle part to form a middle concave; the periphery of the submarine cable is abutted in the concave of the guide roller.
7. A motion compensated submarine cable laying system according to claim 3, wherein: the arc guide members are arranged at two, one is arranged at the lower side of the conveying frame body and is positioned at one end of the conveying frame body close to the compensation driving member, the other is arranged at the upper side of the conveying frame body and is positioned at one end of the conveying frame body close to the hinge shaft.
8. A motion compensated submarine cable laying system according to claim 7, wherein: the upper side and the lower side of the conveying frame body are respectively provided with a sliding rail and a sliding plate sliding along the sliding rails, the arc guide piece is detachably arranged on the corresponding sliding plate, and the sliding plate is fixed on the conveying frame body through bolts.
9. A motion compensated submarine cable laying system according to claim 7, wherein: the ship body is connected with a first guide wheel, the conveying frame body is connected with a second guide wheel, a submarine cable between the ground turntable and the lower circular arc guide piece is abutted to the upper side of the first guide wheel, and a submarine cable between the lower circular arc guide piece and the upper circular arc guide piece is abutted to the upper side of the second guide wheel.
10. A motion compensated submarine cable laying system according to claim 9, wherein: the ship body is also connected with a lifting compensation device for driving the first guide wheel to move up and down, and when the compensation driving piece drives the outer end of the conveying frame to swing up and down, the lifting compensation device drives the first guide wheel to correspondingly swing up and down.
11. A motion compensated submarine cable laying system according to claim 1, wherein: the conveying frame body is also connected with a pulling device for driving the submarine cable to be laid, the pulling device comprises an upper conveying device and a lower conveying device, the submarine cable is arranged between the two conveying devices in a penetrating mode, and the submarine cable is pulled forwards through simultaneous conveying of the conveying devices.
12. A motion compensated submarine cable laying system according to claim 11, wherein: the conveying device above the conveying frame body is driven to lift and drive the guide rail to guide lifting movement through the conveying lifting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310043356.2A CN116247569A (en) | 2023-01-29 | 2023-01-29 | Motion compensation type submarine cable laying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310043356.2A CN116247569A (en) | 2023-01-29 | 2023-01-29 | Motion compensation type submarine cable laying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116247569A true CN116247569A (en) | 2023-06-09 |
Family
ID=86630646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310043356.2A Pending CN116247569A (en) | 2023-01-29 | 2023-01-29 | Motion compensation type submarine cable laying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116247569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116598959A (en) * | 2023-07-13 | 2023-08-15 | 中天科技集团海洋工程有限公司 | Submarine cable on-line and laying system |
-
2023
- 2023-01-29 CN CN202310043356.2A patent/CN116247569A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116598959A (en) * | 2023-07-13 | 2023-08-15 | 中天科技集团海洋工程有限公司 | Submarine cable on-line and laying system |
| CN116598959B (en) * | 2023-07-13 | 2023-09-15 | 中天科技集团海洋工程有限公司 | Submarine cable on-line and laying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1102698B1 (en) | Underwater pipe-laying vessels and methods | |
| US7189028B1 (en) | Underwater pipe-laying | |
| EP3583063B1 (en) | Heave motion compensation system | |
| CN116247569A (en) | Motion compensation type submarine cable laying system | |
| CN112093662B (en) | Shield segment lifting machine | |
| GB734082A (en) | ||
| CN212609111U (en) | Tool for sliding and dropping large-diameter steel pipe pile | |
| CN114348830B (en) | Compensation chain with structure for eliminating running noise of elevator compensation chain | |
| CN213059937U (en) | Shield segment lifting machine | |
| CN211597773U (en) | Equipment for conveying whole bundle of steel strands | |
| CN105480860A (en) | Double-girder crane and hoisting trolley thereof | |
| CN109956362B (en) | Cable clamping and conveying traction device | |
| CN117509423A (en) | Loose pulley mechanism for cable laying ship portal frame | |
| CN207932801U (en) | Hawser draw off gear | |
| CN215436858U (en) | Boats and ships docking pier positioner that falls | |
| CN217498230U (en) | Submarine cable winding device | |
| CN114380243B (en) | Overlength stacker device | |
| CN220539633U (en) | Prefabricated inverted arch assembling trolley | |
| CN205367499U (en) | Two roof beam hoists and play to rise platform truck thereof | |
| GB2321290A (en) | Laying of underwater pipeline from a vessel-mounted drum | |
| CN214138861U (en) | Control vehicle of offshore slippage system | |
| CN117904979B (en) | Cable-stayed bridge cable high-altitude suspension conveying device | |
| CN219823451U (en) | Travelling trolley for cable crane | |
| CN216515195U (en) | Beam carrying device and beam carrying equipment | |
| CN214494581U (en) | Ship transfer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |