CN210461928U - Lifting auxiliary device for mounting flexible pipe cable - Google Patents
Lifting auxiliary device for mounting flexible pipe cable Download PDFInfo
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- CN210461928U CN210461928U CN201921388017.3U CN201921388017U CN210461928U CN 210461928 U CN210461928 U CN 210461928U CN 201921388017 U CN201921388017 U CN 201921388017U CN 210461928 U CN210461928 U CN 210461928U
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- flexible pipe
- arc
- guardrail
- pipe cable
- lifting
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Abstract
The utility model discloses a lifting auxiliary device for the installation of a flexible pipe cable, which comprises a fan-shaped frame body, a first guardrail and a second guardrail which are respectively arranged on the two opposite sides of the arc surface of the fan-shaped frame body, and a plurality of rollers which are arranged on the first guardrail and the second guardrail at intervals along the arc surface; the first guardrail and the second guardrail define a lifting channel which is positioned between the first guardrail and the second guardrail and used for laying a flexible pipe cable; the roller is positioned in the lifting channel, supports the flexible pipe cable and rolls under the driving of the lifting of the flexible pipe cable. The utility model can help to lift the flexible pipe cable, reduce the length of the flexible pipe cable on the seabed, and reduce the friction force between the flexible pipe cable and the seabed; the angle of the flexible pipe cable entering the protective pipe can be adjusted by adjusting the lifting height of the auxiliary lifting device, so that the difficulty of entering a horn mouth of the protective pipe is reduced; the pulling force of the platform winch is reduced, and the scratch is reduced; the flexible pipe cable is simple in pre-laying route and convenient to lay and install; the efficiency of construction work can be improved.
Description
Technical Field
The utility model relates to an ocean engineering technology field especially relates to a carry and draw auxiliary device for installation of flexible pipe cable.
Background
Flexible pipe cables such as flexible transmission pipelines, cables, umbilical cables and the like are used for connecting platform equipment and seabed equipment and transmitting liquid, gas, electric power or signals, and are essential in ocean oil and gas resource development activities. During the offshore laying operation of the flexible pipe cable, the tail end of the flexible pipe cable needs to be pulled to a platform so as to complete connection and debugging. Before the tail end of the flexible pipe cable is pulled to the platform, the pipe cable is pre-paved on a seabed in a U-shaped bent mode according to a designed paving route, then an installation ship uses a crane or a winch to lift the U-shaped bent flexible pipe cable to a designed height, then the platform winch is retracted, the installation ship moves, the crane or a winch steel wire rope is retracted and coordinated with each other, and finally the tail end structure (comprising a pulling head, a bending limiter and the like) of the flexible pipe cable is pulled out of a pipe protecting opening along a protecting pipe of the platform.
In order to ensure the safety of the flexible pipe cable during the drawing process, reduce the friction force and adjust the angle of the bell mouth of the drawn-in protective pipe, it is necessary to design an auxiliary tool to assist the crane or winch to draw the flexible pipe cable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, a carry and draw auxiliary device for installation of flexible pipe cable is provided.
The utility model provides a technical scheme that its technical problem adopted is: the lifting auxiliary device for mounting the flexible pipe cable comprises a fan-shaped frame body, a first guardrail and a second guardrail which are respectively arranged on two opposite sides of an arc-shaped surface of the fan-shaped frame body, and a plurality of rollers which are arranged on the fan-shaped frame body at intervals along the arc-shaped surface;
the first guardrail and the second guardrail define a lifting channel which is positioned between the first guardrail and the second guardrail and used for laying a flexible pipe cable; the roller is positioned in the lifting channel, supports the flexible pipe cable and rolls under the driving of the lifting of the flexible pipe cable.
Preferably, the first guardrail comprises a first arc-shaped rod and a plurality of first supporting rods, wherein the first arc-shaped rod is arranged corresponding to the arc-shaped surface; a plurality of first bracing piece interval is arranged and is connected between first arc pole and arcwall face one side.
Preferably, the two ends of the first arc-shaped rod are respectively provided with a transition section which is bent and close to the two ends of the arc-shaped surface.
Preferably, the second guardrail comprises a second arc-shaped rod and a plurality of second supporting rods, wherein the second arc-shaped rod and the plurality of second supporting rods are arranged corresponding to the arc-shaped surface; and the second support rods are arranged at intervals and connected between the second arc-shaped rod and the other side of the arc-shaped surface.
Preferably, the height of the second support bar on the arc-shaped surface is greater than the height of the first support bar on the arc-shaped surface.
Preferably, the second guard rail further comprises a third arc-shaped rod and a plurality of third support rods; the third arc-shaped rod is connected to the second arc-shaped rod through the third supporting rod, and the third supporting rod is inclined towards the first guardrail direction on the second arc-shaped rod.
Preferably, the fan-shaped frame body comprises a supporting frame and an arc-shaped frame connected to the supporting frame, and the arc-shaped frame is provided with the arc-shaped surface.
Preferably, the fan-shaped frame body is of a semicircular frame structure.
Preferably, the lifting auxiliary device further comprises a lifting lug arranged on the fan-shaped frame body and/or the second guardrail.
Preferably, the lifting lug is positioned on a symmetry axis of the fan-shaped frame body.
The lifting auxiliary device for the installation of the flexible pipe cable of the utility model is used for assisting to lift the flexible pipe cable, so that the length of the flexible pipe cable on the seabed can be reduced, and the friction force between the flexible pipe cable and the seabed is reduced; the angle of the flexible pipe cable entering the protective pipe can be adjusted by adjusting the lifting height of the auxiliary lifting device, so that the difficulty of entering a horn mouth of the protective pipe is reduced; the pulling force of the platform winch is reduced, and the scratch is reduced; the flexible pipe cable is simple in pre-laying route and convenient to lay and install; the efficiency of construction work can be improved.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural view of a lifting assist device according to an embodiment of the present invention;
fig. 2-4 are schematic diagrams illustrating a process of using the auxiliary pulling device to install a flexible pipe cable according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a lifting auxiliary device for flexible pipe cable installation according to an embodiment of the present invention includes a fan-shaped frame body 10, a first guardrail 20, a second guardrail 30, and a plurality of rollers 40. An arc-shaped surface 100 is formed on one side of the arc-shaped edge of the fan-shaped frame 10, the first guard rail 20 and the second guard rail 30 are respectively arranged on two opposite sides of the arc-shaped surface 100, and a lifting channel for laying the flexible pipe cable is defined on the arc-shaped surface 100. A plurality of rollers 40 are spaced along the arc surface 100 on the arc surface 100 and located in the pulling channel for supporting the flexible umbilical and rolling under the pulling force of the flexible umbilical.
The fan frame 10 may have a semicircular frame structure as shown in fig. 1, or may have a fan frame structure with a right angle, an acute angle, or an obtuse angle. The arc radius of the fan-shaped frame 10 is larger than the displacement control bending radius of the laid flexible pipe cable, and the width (the width of the arc-shaped surface) of the fan-shaped frame is larger than the diameter of the flexible pipe cable.
In terms of structure, the sector frame 10 may further include a support frame 11 and an arc frame 12 connected to the support frame 11, and the arc frame 12 has an arc surface 100 formed thereon. As shown in fig. 1, in the present embodiment, the supporting frame 11 is a straight frame, the arc-shaped frame 12 is a semicircular frame, and two ends of the arc-shaped frame are connected to two ends of the supporting frame 11, so as to form a semicircular frame structure. In other embodiments, the support frame 11 may be a V-shaped frame having an included angle, which forms a right-angled, acute-angled or obtuse-angled frame according to the included angle of 90 °, less than 90 ° or more than 90 °, so as to form a right-angled, acute-angled or obtuse-angled fan-shaped frame structure in connection with the arc-shaped frame 12.
In order to reinforce the structural strength of the segment frame body 10, it further includes at least one reinforcing bar 13 connected between the support frame 11 and the arc frame 12.
The arrangement of the first guard rail 20 and the second guard rail 30 on both sides of the arc-shaped face 100 of the fan-shaped frame body 10 restricts the flexible umbilical within the pulling channel, preventing the flexible umbilical from jumping out of the pulling channel.
Specifically, the first guard rail 20 may include a first arc-shaped rod 21 and a plurality of first support rods 22. The first arc rod 21 is arranged corresponding to the arc surface 100, that is, the radian of the first arc rod 21 is consistent with the radian of the arc surface 100, so that the first arc rod 21 can be arranged parallel to the arc surface 100 at intervals. The plurality of first support rods 22 are arranged at intervals and connected between the first arc-shaped rod 21 and one side of the arc-shaped surface 100 to form a first guardrail 20 with the first arc-shaped rod 21.
Wherein the height of the first support bar 22 above the arc surface 100 is greater than the diameter of the flexible umbilical to prevent the flexible umbilical from jumping out of the pulling channel through the first fence 20 during the pulling process. For arrangements in which the first support strut 22 is connected vertically between the first arced leg 21 and the arced face 100, the length of the first support strut 22 is greater than the diameter of the flexible umbilical.
Further, both ends of the first arc-shaped rod 21 are respectively provided with transition sections 23 which are bent and close to both ends of the arc-shaped surface 100. The transition section 23 is provided so that the flexible umbilical can be laid into the pull channel.
The second guard rail 30 may include a second arc-shaped rod 31 and a plurality of second support rods 32. The second arc rod 31 is disposed corresponding to the arc surface 100, that is, the radian of the second arc rod 31 is consistent with the radian of the arc surface 100, so that the second arc rod 31 can be disposed parallel to the arc surface 100 at intervals. The second support rods 32 are arranged at intervals and connected between the second arc-shaped rods 31 and the other side of the arc-shaped surface 100, and the second arc-shaped rods 31 are connected to the arc-shaped surface 100 and are opposite to the first guard rail 20 at intervals.
Alternatively, the height of the second support bar 32 on the curved surface 100 is greater than the height of the first support bar 22 on the curved surface.
Further, the second guard rail 30 further includes a third arc-shaped rod 33 and a plurality of third support rods 34. The third arc pole 33 is connected to the second arc pole 31 through the third support rod 34, and the third support rod 34 inclines to the first guardrail 20 direction on the second arc pole 31, so that the guardrail structure composed of the third support rod 34 and the third arc pole 33 inclines to the first guardrail 20 direction, so that the flexible pipe cable is guided to enter when being laid, and the flexible pipe cable can be prevented from jumping out of the guardrail structure in the lifting and pulling process.
For the second guard rail 30, the height of the second support bar 32 can be less than or equal to the height of the first support bar 22, and the height of the whole second guard rail 30 on the arc surface 100 is greater than the height of the first guard rail 20 through the arrangement of the third arc-shaped bar 33 and the third support bar 34.
The roller 40 is mainly used for supporting the flexible pipe cable on the arc-shaped surface 100, and can roll relative to the fan-shaped frame 10 and the flexible pipe cable during the pulling process of the flexible pipe cable, so that the friction force of the flexible pipe cable during the pulling process is reduced. The number of the rollers 40 is determined according to the radius of the arc and the distance between the rollers, and can be installed on the arc surface 100 through the rotating shaft.
Further, the utility model discloses a carry and draw auxiliary device still includes the lug 50 that sets up on fan-shaped framework 10 and/or second guardrail 30 for connect the hoist and mount rigging, so that loop wheel machine or winch carry and draw whole carry and draw auxiliary device. The lifting lug 50 also serves to assist in changing the lift assist device from a horizontal position to a vertical position.
The lifting lugs 50 may be one or more, and the lifting lugs 50 are preferably located on the symmetry axis of the sector frame 10 so as to balance the whole lifting aid to be lifted or lowered.
It will be appreciated that in other embodiments of the lift assist device, the lifting rigging can be attached directly to the segment frame 10, the first fence 20 or the second fence 30 without affecting the lay of the flexible umbilical therein.
With reference to fig. 1-4, when the lifting auxiliary device of the present invention is used, the specific operations can be as follows:
(1) and determining the lowering position of the lifting auxiliary device according to the designed U-shaped bent laying route, and cleaning the surrounding seabed garbage and obstacles.
(2) And installing the hoisting rigging 1 of the lifting auxiliary device, lowering the whole lifting auxiliary device to the seabed, and pouring the lifting auxiliary device from a vertical state to a horizontal state, as shown in fig. 2 (a) to (b), so as to ensure that the second guardrail 30 faces downwards, and simultaneously, adjusting the orientation angle by the ROV 2.
(3) As shown in fig. 3, the installation vessel 3 starts laying the U-bend, and the ROV2 assists the flexible umbilical 4 in entering the pulling channel of the pulling assist device.
(4) And the ship 3 to be installed finishes laying the U-shaped bend, and the tail end of the flexible pipe cable 4 is connected with the steel wire rope 5 of the platform winch.
(5) The installation vessel 3 moves above the position of the lifting auxiliary device, a crane or a winch steel wire rope 5 is lowered, the ROV2 assists in being connected to a lifting rigging of the lifting auxiliary device, and the flexible pipe cable 4 of the U-shaped bent section is ready to be lifted until a specified lifting height is reached.
(6) The work of the winch of the platform, the ship, the crane and/or the winch is ready, and the flexible pipe cable 4 is pulled and pulled to the platform. In the process, the platform winch continuously recovers the steel wire rope 5, the ship moves synchronously, and the crane/winch steel wire rope 5 is lowered to lift the auxiliary device.
(7) And continuously drawing the flexible pipe cable 4 until the tail end of the pipe cable is drawn out by the length required by the pipe protecting opening, and stopping drawing.
(8) And slowly lowering the lifting auxiliary device together with the flexible pipe cable 4 onto the seabed by using a crane/winch, and finishing two rolling actions of the lifting auxiliary device by designing a rigging so that the flexible pipe cable 4 is separated from the lifting auxiliary device.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A lifting auxiliary device for mounting a flexible pipe cable is characterized by comprising a fan-shaped frame body, a first guardrail and a second guardrail which are respectively arranged on two opposite sides of an arc-shaped surface of the fan-shaped frame body, and a plurality of rollers which are arranged on the fan-shaped frame body at intervals along the arc-shaped surface;
the first guardrail and the second guardrail define a lifting channel which is positioned between the first guardrail and the second guardrail and used for laying a flexible pipe cable; the roller is positioned in the lifting channel, supports the flexible pipe cable and rolls under the driving of the lifting of the flexible pipe cable.
2. The lift assist device of claim 1 wherein the first fence comprises a first arcuate bar disposed in correspondence with the arcuate face, a plurality of first support bars; a plurality of first bracing piece interval is arranged and is connected between first arc pole and arcwall face one side.
3. The pulling aid of claim 2, wherein the first curved rod has a transition portion at each end that is curved toward the two ends of the curved surface.
4. The lift assist device of claim 2, wherein the second fence comprises a second arcuate bar disposed in correspondence with the arcuate face, a plurality of second support bars; and the second support rods are arranged at intervals and connected between the second arc-shaped rod and the other side of the arc-shaped surface.
5. The pull assist device of claim 4, wherein the height of the second support bar above the arcuate surface is greater than the height of the first support bar above the arcuate surface.
6. The lift assist device of claim 4, wherein the second fence further comprises a third arcuate bar and a plurality of third support bars; the third arc-shaped rod is connected to the second arc-shaped rod through the third supporting rod, and the third supporting rod is inclined towards the first guardrail direction on the second arc-shaped rod.
7. The pulling aid of claim 1, wherein the fan frame comprises a support frame and an arcuate frame connected to the support frame, the arcuate frame having the arcuate surface formed thereon.
8. The pull assist device of claim 1, wherein the fan frame is a semi-circular frame structure.
9. A pulling aid as claimed in any one of claims 1 to 8 further comprising lifting lugs provided on the sector frame and/or the second fence.
10. The pull assist device of claim 9, wherein the lifting lug is located on an axis of symmetry of the fan frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388017.3U CN210461928U (en) | 2019-08-23 | 2019-08-23 | Lifting auxiliary device for mounting flexible pipe cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388017.3U CN210461928U (en) | 2019-08-23 | 2019-08-23 | Lifting auxiliary device for mounting flexible pipe cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461928U true CN210461928U (en) | 2020-05-05 |
Family
ID=70453375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921388017.3U Active CN210461928U (en) | 2019-08-23 | 2019-08-23 | Lifting auxiliary device for mounting flexible pipe cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461928U (en) |
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2019
- 2019-08-23 CN CN201921388017.3U patent/CN210461928U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518067 4th floor, phase I, Shekou science and technology building, Nanhai Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee after: CNOOC Shenzhen Ocean Engineering Technology Service Co.,Ltd. Address before: 518067 4th floor, phase I, Shekou science and technology building, Nanhai Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: COOEC SUBSEA TECHNOLOGY Co.,Ltd. |