Tool for recovering marine pipe
阅读说明:本技术 一种海管回收工具 (Tool for recovering marine pipe ) 是由 齐兵兵 曲有杰 肖源彬 齐芳芳 张忠扬 段亚辉 赵拥军 于 2020-07-22 设计创作,主要内容包括:本发明涉及构造海管回收工具,包括机架、驱动机构、安装于所述机架上且与所述驱动机构连接由所述驱动机构带动夹持或者松开海管的夹持机构、以及安装于所述机架上和/或所述夹持机构上以与外置吊装设备连接的吊接机构;所述驱动机构包括驱动组件以及与所述驱动组件和所述夹持机构连接的传动组件;所述夹持机构包括与所述传动组件连接的至少一组夹持组件;所述夹持组件包括与所述传动组件连接的第一夹臂和第二夹臂,所述第一夹臂和所述第二夹臂在所述驱动组件驱动下由所述传动组件带动做开合动作进而夹持或者松开所述海管。该海管回收工具具有结构简单、操作简便、操作效率高的优点。(The invention relates to a constructed marine pipe recovery tool, which comprises a rack, a driving mechanism, a clamping mechanism and a hoisting mechanism, wherein the clamping mechanism is arranged on the rack, is connected with the driving mechanism and is driven by the driving mechanism to clamp or loosen a marine pipe, and the hoisting mechanism is arranged on the rack and/or the clamping mechanism and is connected with external hoisting equipment; the driving mechanism comprises a driving assembly and a transmission assembly connected with the driving assembly and the clamping mechanism; the clamping mechanism comprises at least one group of clamping components connected with the transmission component; the clamping assembly comprises a first clamping arm and a second clamping arm which are connected with the transmission assembly, and the first clamping arm and the second clamping arm are driven by the driving assembly to open and close under the driving of the driving assembly so as to clamp or loosen the marine pipe. The marine vessel recovery tool has the advantages of simple structure, simplicity and convenience in operation and high operation efficiency.)
1. The marine pipe recycling tool is characterized by comprising a rack (10), a driving mechanism (20), a clamping mechanism (30) which is arranged on the rack (10) and connected with the driving mechanism (20) and is driven by the driving mechanism (20) to clamp or loosen a marine pipe (200), and a hoisting mechanism which is arranged on the rack (10) and/or the clamping mechanism (30) and is connected with external hoisting equipment;
the driving mechanism (20) comprises a driving assembly (21) and a transmission assembly (22) connected with the driving assembly (21) and the clamping mechanism (30);
the clamping mechanism (30) comprises at least one group of clamping components connected with the transmission component (22); the clamping assembly comprises a first clamping arm (31) and a second clamping arm (32) which are connected with the transmission assembly (22), and the first clamping arm (31) and the second clamping arm (32) are driven by the transmission assembly (22) to open and close under the driving of the driving assembly (21) so as to clamp or loosen the submarine pipe (200).
2. Marine vessel retrieval tool according to claim 1, wherein the drive assembly (21) comprises a hydraulic cylinder (211) connected to an external hydraulic circuit, and a plunger (212) arranged in the hydraulic cylinder (211) for reciprocating movement;
the transmission assembly (22) comprises a first push rod (221), a second push rod (222) which is arranged in an opening and closing mode with the first push rod (221), and a hinge shaft (223) which is used for hinging the first push rod (221), the second push rod (222) and the plunger (212);
one end of each of the first push rod (221) and the second push rod (222) can be rotatably connected to the hinge shaft (223), the other end of each of the first push rod (221) and the second push rod (222) is respectively connected with the first clamping arm (31) and the second clamping arm (32), and the first clamping arm (31) and the second clamping arm (32) are driven to clamp the marine vessel (200) or loosen the marine vessel (200) through opening and closing actions when the plunger (212) reciprocates.
3. The marine vessel retrieval tool of claim 2, wherein the first clamp arm (31) comprises a first clamping portion (311) for clamping the marine vessel (200), and a first connecting portion (312) connected to the first clamping portion (311) and rotatably connected to the first push rod (221);
the second clamping arm (32) comprises a second clamping part (321) for clamping the sea pipe (200) and a second connecting part (322) which is connected with the second clamping part (321) and is rotatably connected with the second push rod (222);
the first clamping part (311) and the second clamping part (321) are arranged oppositely to form an opening and closing structure;
the first connecting part (312) and the second connecting part (322) are oppositely arranged; the first connecting part (312) and the first push rod (221) are rotatably connected through a first connecting shaft (231); the second connecting part (322) and the second push rod (222) are rotatably connected through a second connecting shaft (232).
4. The marine vessel retrieval tool of claim 1, wherein the gripping assemblies are two sets,
the first clamping arms (31) of the two groups of clamping assemblies are arranged oppositely and connected through a first connecting piece (35);
the second clamping arms (32) of the two groups of clamping assemblies are arranged oppositely and connected through a second connecting piece (36);
the transmission assemblies (22) are divided into two groups, and the two groups of transmission assemblies (22) are correspondingly connected with the two groups of clamping assemblies.
5. Marine vessel retrieving tool according to claim 2, wherein the frame (10) comprises a top cover (11) and a connecting frame (12) arranged on the top cover (11) and extending downwards for connecting the hydraulic cylinder (211);
the suspension structure comprises a first lifting lug (41) arranged on the top cover (11), and/or a second lifting lug (42) rotatably arranged on the first clamping arm (31), and/or a third lifting lug (43) rotatably arranged on the second clamping arm (32).
6. Marine vessel retrieval tool according to claim 5, characterised in that the connection frame (12) is provided with a handle (13) for connection to an external device or for an operator to hold.
7. The marine vessel retrieval tool of claim 1, further comprising a limiting mechanism (50) disposed between the first clamp arm (31) and the second clamp arm (32) to limit the marine vessel (200).
8. The marine vessel retrieval tool of claim 2, further comprising a hydraulic interface (60) in communication with the hydraulic cylinder (211) to access the external hydraulic circuit.
9. Marine vessel retrieval tool according to claim 8, further comprising a directional valve (70) connected to the external hydraulic circuit for switching the hydraulic oil delivery direction.
10. Marine pipe retrieving tool according to claim 1, further comprising a dial (80) arranged on the chassis (10), and a pointer pointing to the dial (80) for indicating the clamping coefficient of the clamping mechanism (30).
Technical Field
The invention relates to a marine vessel maintenance technology, in particular to a marine vessel recovery tool.
Background
In recent years, the number of deepwater marine pipes is increasing, and accidents of marine pipe damage are more and more frequent due to the long years of marine pipe design and construction, pipeline corrosion, towing of trawlers and the like. Once the sea pipe is damaged, the sea pipe brings huge threats to the production of marine environment and oil and gas fields. When a submarine pipeline is damaged, a common maintenance method is to recover the pipeline to the water surface for maintenance and then lower the pipeline to the seabed. The recovery process of the marine pipe needs special tools to complete the recovery operation.
At present, an experimental marine vessel recovery tool (PRT) is provided at home, but the tool is inserted into a steel pipe to complete marine vessel recovery operation, and cannot be used for recovery operation of marine vessels, cables and the like; meanwhile, due to size limitation, the PRT with one specification can only recover steel pipes with corresponding pipe diameters, and the recovery conditions of a plurality of sea pipes with different pipe diameters cannot be met. No special tool for the recovery of submarine pipelines and cables, especially for deep sea pipelines of more than 300 meters, has been found.
The pipeline water depth of 3-1 gas field of the lychee bay put into production in China at present reaches 1500 meters, and the water depth of 17-2 project of the developed cemetery reaches 1700 meters. Once the pipeline of the deepwater oil and gas field leaks, serious marine environmental pollution and huge economic loss can be caused, and the research on deepwater marine pipe emergency maintenance equipment is not slow.
Disclosure of Invention
The invention aims to provide an improved marine pipe recycling tool.
The technical scheme adopted by the invention for solving the technical problems is as follows: the marine pipe recycling tool comprises a rack, a driving mechanism, a clamping mechanism and a hanging mechanism, wherein the clamping mechanism is installed on the rack and connected with the driving mechanism, and is driven by the driving mechanism to clamp or loosen a marine pipe;
the driving mechanism comprises a driving assembly and a transmission assembly connected with the driving assembly and the clamping mechanism;
the clamping mechanism comprises at least one group of clamping components connected with the transmission component; the clamping assembly comprises a first clamping arm and a second clamping arm which are connected with the transmission assembly, and the first clamping arm and the second clamping arm are driven by the driving assembly to open and close under the driving of the driving assembly so as to clamp or loosen the marine pipe.
Preferably, the driving assembly comprises a hydraulic cylinder connected with an external hydraulic oil circuit and a plunger which can be repeatedly and movably arranged in the hydraulic cylinder;
the transmission assembly comprises a first push rod, a second push rod and a hinge shaft, wherein the second push rod is arranged in an opening and closing mode with the first push rod, and the hinge shaft is used for hinging the first push rod, the second push rod and the plunger;
one end of the first push rod and one end of the second push rod are rotatably connected to the hinge shaft, the other end of the first push rod and the other end of the second push rod are respectively connected with the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are driven to clamp the submarine pipe or loosen the submarine pipe through opening and closing actions during reciprocating motion of the plunger.
Preferably, the first clamping arm comprises a first clamping portion for clamping the marine pipe and a first connecting portion connected with the first clamping portion and rotatably connected with the first push rod;
the second clamping arm comprises a second clamping part for clamping the sea pipe and a second connecting part which is connected with the second clamping part and is rotatably connected with the second push rod;
the first clamping part and the second clamping part are oppositely arranged to form an opening and closing structure;
the first connecting part and the second connecting part are oppositely arranged; the first connecting part and the first push rod are rotatably connected through a first connecting shaft; the second connecting portion with the second push rod is through setting up second connecting axle rotatable coupling.
Preferably, the clamping assemblies are two groups,
the first clamping arms of the two groups of clamping assemblies are arranged oppositely and connected through a first connecting piece;
the second clamping arms of the two groups of clamping assemblies are arranged oppositely and connected through a second connecting piece;
the transmission assemblies are two groups, and the two groups of transmission assemblies are correspondingly connected with the two groups of clamping assemblies.
Preferably, the frame comprises a top cover and a connecting frame which is arranged on the top cover and extends downwards to connect the hydraulic cylinder;
the suspension structure comprises a first lifting lug arranged on the top cover, and/or a second lifting lug rotatably arranged on the first clamping arm, and/or a third lifting lug rotatably arranged on the second clamping arm.
Preferably, the connecting frame is provided with a handle connected with external equipment or held by an operator.
Preferably, the marine pipe limiting device further comprises a limiting mechanism arranged between the first clamping arm and the second clamping arm to limit the marine pipe.
Preferably, the hydraulic system further comprises a hydraulic interface communicated with the hydraulic cylinder to access the external hydraulic oil circuit.
Preferably, the hydraulic control system further comprises a reversing valve connected with the external hydraulic oil path to switch the conveying direction of hydraulic oil.
Preferably, the clamping mechanism further comprises a dial arranged on the rack and a pointer pointing to the dial to indicate the clamping coefficient of the clamping mechanism.
The implementation of the marine vessel recovery tool has the following beneficial effects: the marine pipe recycling tool can drive the transmission assembly to transmit through the driving assembly of the driving mechanism, further drive the first clamping arm and the second clamping arm of the clamping mechanism to move in an opening and closing mode to clamp the marine pipe, and is connected with external hoisting equipment through the hoisting mechanism to recycle the marine pipe. The marine pipe recovery tool can be suitable for marine pipes with different pipe diameters, can be suitable for deep water operation, and has the advantages of simple structure, simplicity and convenience in operation and high operation efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a marine vessel retrieval tool according to some embodiments of the present invention;
FIG. 2 is a cross-sectional view of the marine vessel retrieval tool of FIG. 1;
FIG. 3 is a side view of the marine vessel retrieval tool of FIG. 1;
FIG. 4 is a schematic view of the marine vessel retrieval tool of FIG. 1 with the bottom side facing up;
FIG. 5 is a schematic structural view of the frame of the marine vessel retrieval tool of FIG. 1;
FIG. 6 is a schematic view of the marine vessel retrieval tool of FIG. 1 in a first use configuration;
fig. 7 is a schematic structural view of the marine vessel retrieval tool shown in fig. 1 in a second use state.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 shows some preferred embodiments of the sea pipe of the invention. The sea pipe can be used for recovering the sea pipe 200 to the water surface, and can complete the operation process of lowering the sea pipe 200 to the seabed after maintenance, the sea pipe can be used for recovering the sea pipe 200 with the depth of more than 300 meters, and the automatic sea pipe 200 recovery operation can be realized by the aid of external equipment, and in some embodiments, the external equipment can be an ROV underwater robot. The submarine pipeline can realize rapid, stable and safe recovery of the submarine pipeline 200 so as to facilitate subsequent overwater maintenance operation, and has the advantages of simple structure, simplicity and convenience in operation, high recovery efficiency, accuracy and stability.
As shown in fig. 1 and 2, in some embodiments, the marine vessel may include a
Further, as shown in fig. 1, 2 and 5, in some embodiments, the
Further, in some embodiments, the drive mechanism 20 may include a drive assembly 21 and a transmission assembly 22. The driving assembly 21 is a power mechanism, which can output power to drive the transmission assembly 22 for transmission. In some embodiments, the transmission assembly 22 can be connected to the driving assembly 21 and the clamping mechanism 30, and can transmit the driving force of the driving assembly 21 to drive the clamping mechanism 30 to clamp or release the marine pipe 200200. In some embodiments, the transmission assemblies 22 may be two sets, and the two sets of transmission assemblies 22 are disposed side by side and opposite to each other, and are respectively used for connecting the driving assemblies 21, and can be driven by the driving assemblies 21 to perform synchronous transmission. Of course, it is understood that in some embodiments, the transmission assemblies 22 may be one set, and the transmission assemblies 22 may not be limited to two sets.
Further, as shown in fig. 1-3, in some embodiments, the drive assembly 21 may include a
Further, in some embodiments, the transmission assembly 22 may include a first push rod 221, a second push rod 222, and a hinge shaft 223. The first push rod 221 and the second push rod 222 can be opened and closed, and one end of the first push rod 221 and one end of the second push rod 222 can be rotatably connected to the hinge shaft 223. The first and second push rods 221 and 222 and the plunger 212 may be hinged by a hinge shaft 223. In some embodiments, the other ends of the first and second push rods 221 and 222 can be respectively connected to the clamping mechanism 30. The driving principle of the driving mechanism 23 may be similar to the counter mechanism principle of a crank-slider mechanism. When the plunger 212 reciprocates, the first push rod 221 and the second push rod 222 can drive the clamping mechanism 30 to clamp the marine vessel 200 or loosen the marine vessel 200 by opening and closing. Specifically, the plunger 212 moves away from the hydraulic chamber 2111, the first push rod 221 and the second push rod 222 are opened, and the clamping mechanism 30 clamps the sea pipe 200; conversely, the first push rod 221 and the second push rod 222 are combined, and the clamping mechanism 30 releases the sea pipe 200. In some embodiments, the ends of the first push rods 221 of the two sets of transmission assemblies 22 away from the hinge shaft 223 are correspondingly connected by a first connecting shaft 231, and the ends of the second push rods 222 of the two sets of transmission assemblies 22 away from the hinge shaft 223 are correspondingly connected by a second connecting shaft 232.
Further, in some embodiments, the clamping mechanism 30 may include two sets of clamping assemblies, although it is understood that in other embodiments, the clamping assemblies may not be limited to two sets, and the clamping assemblies may be one or more sets. The two sets of clamping components can be correspondingly connected with the two sets of transmission components 22. The two sets of clamping assemblies may be spaced apart and arranged side by side, and the driving mechanism 20 may be located between the two sets of clamping assemblies and may drive the clamping assemblies to simultaneously clamp the marine pipe 200 or unclamp the marine pipe 200.
Further, in some embodiments, each set of clamp assemblies may include a
Further, in some embodiments, the
Further, in some embodiments, the
Further, in some embodiments, the first clamping
Further, in some embodiments, the
Further, as shown in fig. 1, 6, and 7, in some embodiments, the suspension structure may include a
As shown in fig. 1 and 4, in some embodiments, the marine vessel retrieving tool may further include a limiting mechanism 50, and the limiting mechanism 50 may be disposed on the
Further, in some embodiments, the marine pipe retrieving tool may further include a
Further, in some embodiments, the marine pipe retrieving tool may further include a reversing
Further, in some embodiments, the marine vessel retrieval tool may also include a
The working principle of the marine pipe recovery tool comprises the steps that firstly, the open marine pipe recovery tool of the clamping mechanism 20 is lowered to the position above a marine pipe 200 through a crane, the process is assisted and positioned through an ROV underwater robot, when a limit claw 51 of the marine pipe recovery tool touches the marine pipe 200, the crane stops working, a manipulator A of the ROV underwater robot grabs a handle 13 of the marine pipe recovery tool, a manipulator B controls a hot stab to be in butt joint with a hot stab hydraulic interface (hot stab)60 of the marine pipe recovery tool, a hydraulic oil circuit is connected, the manipulator B is loosened at the moment, then a working inlet gear of a reversing valve 70 of the marine pipe recovery tool is held and opened, hydraulic oil passes through an interlocking loop to reach preset pressure, oil is supplied to a hydraulic cylinder 211, a plunger 212 in the hydraulic cylinder 211 starts to feed, the working inlet of the plunger 212 in the hydraulic cylinder 211 pushes a first push rod 221 and a second push rod 222 to open through a hinge shaft 223, and drives a first clamping arm 31 and a second clamping arm 32 on the inner side and the outer side to wind around a, The second rotating shaft 34 rotates to clamp the marine pipe 200, and the ROV is controlled to switch the reversing valve 70 back to the neutral position function (O type) by observing the test calibration value of the clamping coefficient disc through the ROV vision system, in the process, in order to prevent the marine pipe 200 from generating excessive deformation due to excessive oil pressure, the upper limit value of the hydraulic system oil pressure is determined by a main-way overflow valve, and the overflow pressure of the overflow valve can be set according to different marine pipes 200. After the marine pipe 200 is clamped, the O-shaped neutral position function and the interlocking loop jointly maintain the pressure of the system. The ROV pulls out the hot stab and is far away from the recovery tool, and sends a signal to inform the water crane to carry out recovery operation, thereby completing the recovery work.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
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