CN111717725A - Tool for recovering marine pipe - Google Patents
Tool for recovering marine pipe Download PDFInfo
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- CN111717725A CN111717725A CN202010713376.2A CN202010713376A CN111717725A CN 111717725 A CN111717725 A CN 111717725A CN 202010713376 A CN202010713376 A CN 202010713376A CN 111717725 A CN111717725 A CN 111717725A
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- 238000000429 assembly Methods 0.000 claims description 40
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
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- 230000008569 process Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
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- 235000015742 Nephelium litchi Nutrition 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/18—Gripping devices with linear motion
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- 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
- B65H2701/33—Hollow or hose-like material
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Abstract
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.
Description
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 frame 10, a driving mechanism 20, a clamping mechanism 30, and a hoisting mechanism. The frame 10 may be used to mount the drive mechanism 20, the clamping mechanism 30, and the suspension mechanism. The driving mechanism 20 can be installed on the rack 10, the driving mechanism 20 can be connected to the clamping mechanism 30, the clamping mechanism 30 can be installed on the rack 10 and can be connected to the driving mechanism 20, and the marine vessel 200 can be clamped or unclamped by the driving of the driving mechanism 20. The hoisting mechanism can be mounted on the frame 10 and the clamping mechanism 30, and can be connected to the external hoisting device and hoisted by the hoisting device. Of course, it is understood that in other embodiments, the hoisting mechanism may be disposed only on the frame 10 or only on the clamping mechanism 30.
Further, as shown in fig. 1, 2 and 5, in some embodiments, the housing 10 may include a top cover 11, a connecting frame 12 and a handle 13. The number of the top covers 11 can be two, the two top covers 11 can be arranged side by side, and each top cover 11 can be umbrella-shaped. The connecting frame 12 may be disposed on the top cover 11, located between the two top covers 11, connected to the two top covers 11, and extending downward from the top covers 11. The number of the connecting frames 12 may be two, the two connecting frames 12 may be arranged side by side and at an interval along the width direction of the top cover 11, and the two connecting frames 12 may be arranged oppositely. The handle 13 may be disposed on the connecting frame 12, located on an outer side wall of the connecting frame 12, and may be integrally formed with the connecting frame 12. The number of the handles 13 may be two, and the two handles 13 may be disposed in one-to-one correspondence with the two connection frames 12. The handle 13 may be used to connect with the external device, which may be an ROV underwater robot. In some embodiments, the handle 13 may not be limited to connection with an external device, and may be used for holding by an operator or as a support handle for a storage rack.
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 hydraulic cylinder 211 and a plunger 212. The hydraulic rod 211 may be connected between the two connection frames 12, and may be integrally formed with the two connection frames 12. The inside of the hydraulic cylinder 211 may form a hydraulic pressure chamber 2111. The hydraulic cylinder 211 may be connected to an external hydraulic oil path, and specifically, the hydraulic chamber 2111 of the hydraulic cylinder 211 may be connected to the external hydraulic oil path through a connecting line. The plunger 212 is reciprocatably disposed in the hydraulic cylinder 211. Specifically, in some embodiments, the plunger 212 penetrates through the hydraulic chamber 2111 and is connected to the transmission assembly 22, and when the hydraulic chamber 2111 is connected to the hydraulic oil path and the hydraulic oil path is used for injecting liquid into the hydraulic chamber 2111, the plunger 212 can be pushed by hydraulic oil to perform a feeding motion in a direction away from the hydraulic chamber 2111, so as to drive the transmission assembly 22 to transmit, and further drive the clamping mechanism 30 to clamp the marine pipe 200; when the hydraulic chamber 2111 outputs hydraulic oil to the hydraulic oil path, the plunger 212 can move toward the hydraulic chamber 2111, and drive the transmission assembly 22 to transmit, thereby driving the clamping mechanism 30 to release the marine pipe 200.
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 first clamp arm 31 and a second clamp arm 32. The first clamping arm 31 and the second clamping arm 32 can be disposed side by side and opposite to each other, and the first clamping arm 31 and the second clamping arm 32 can form an opening and closing structure and can be driven by the driving component 21 to be opened and closed by the transmission component 22 so as to clamp or loosen the marine vessel 200. In some embodiments, one end of the first push rod 221 can be rotatably connected to the first clamp arm 31, one end of the second push rod 222 can be rotatably connected to the second clamp arm, and when the plunger 212 reciprocates, the first push rod 221 and the second push rod 222 can open and close, so as to drive the first clamp arm 31 and the second clamp arm 32 to clamp the marine vessel 200 or release the marine vessel 200.
Further, in some embodiments, the first clamping arm 31 may include a first clamping portion 311 and a first connecting portion 312. The first clamping portion 31 may be located at a lower portion, a clamping slot adapted to the marine pipe 200 may be formed at a side of the first clamping portion 31 opposite to the second clamping arm 32, the first connecting portion 312 may be connected to the first clamping portion 311, and the first connecting portion 312 may be located at an upper portion of the first clamping portion 311 and may be integrally formed with the first clamping portion 311. The first connecting portion 312 can be rotatably connected to the first push rod 221. Specifically, in some embodiments, the first connection portion 312 may be rotatably connected to the first push rod 221 by providing a first connection shaft 231.
Further, in some embodiments, the second clamping arm 32 may include a second clamping portion 321 and a second connecting portion 322. The second clamping portion 32 can be located at the lower portion, a clamping groove adapted to the marine pipe 200 can be formed at a side of the second clamping portion 32 opposite to the side of the second clamping portion, the second connecting portion 322 can be connected to the second clamping portion 321, and the second connecting portion 322 can be located at the upper portion of the second clamping portion 321 and can be integrally formed with the second clamping portion 321. The second connecting portion 322 can be rotatably connected to the second push rod 221. Specifically, in some embodiments, the second connecting portion 322 may be rotatably connected to the second push rod 221 by providing a second connecting shaft 232. In some embodiments, the first clamping portion 311 may be disposed opposite to the second clamping portion 321 and may form an opening and closing structure, and the first connecting portion 312 may be disposed opposite to the second connecting portion 322.
Further, in some embodiments, the first clamping arms 31 of the two sets of clamping assemblies can be disposed opposite to each other and can be connected by disposing the first connecting member 35. Specifically, the first connecting member 35 may be disposed on one side of the first clamping arm 31, and may be in the form of a strip, and two ends of the first connecting member 35 may be welded and fixed to the first clamping arms 31 of the two sets of clamping assemblies, so as to connect and fix the first clamping arms 31 of the two sets of clamping assemblies.
Further, in some embodiments, the second clamping arms 32 of the two sets of clamping assemblies can be disposed opposite to each other and can be connected by disposing the second connecting member 36. Specifically, the second connecting member 36 may be disposed at one side of the second clamping arm 32, and may be in a strip shape, and two ends of the second connecting member 36 may be fixed to the second clamping arms 32 of the two sets of clamping assemblies by welding, so as to connect and fix the second clamping arms 32 of the two sets of clamping assemblies.
Further, as shown in fig. 1, 6, and 7, in some embodiments, the suspension structure may include a first lifting lug 41, a second lifting lug 42, and a third lifting lug 43. The first lifting lug 41, the second lifting lug 42, and the third lifting lug 43 may be connected to the external lifting device, and in some embodiments, the first lifting lug 41 may be disposed on the roof 11 and between two roofs 11, and it will be understood that in other embodiments, the first lifting lug 41 may be omitted. The second lifting lug 42 can be disposed on the first clamping arm 31, and can be disposed toward the outer side wall of the first clamping arm 31 in a protruding manner, the second lifting lug 42 can be disposed on the first clamping arm 31 of the two sets of clamping assemblies, and the second lifting lug 42 can be rotatably connected to the first clamping arm 31, specifically, in some embodiments, a first rotating shaft 33 penetrates through the first clamping arm 31 of the two sets of clamping assemblies, two ends of the first rotating shaft 33 are respectively connected to the second lifting lug 42 on the first clamping arm 31 of the two sets of clamping assemblies, so that the second lifting lug 42 can rotate conveniently, and the hanging requirement can be met. It will be appreciated that in other embodiments, the second lifting lug 42 may be omitted. In some embodiments, the third lifting lug 43 may be disposed on the second clamping arm 32, and may be disposed to protrude toward an outer side wall of the second clamping arm 32, the third lifting lug 43 may be disposed on the second clamping arm 32 of each of the two sets of clamping assemblies, and the third lifting lug 43 may be rotatably connected to the second clamping arm 32, specifically, in some embodiments, a second rotating shaft 34 is disposed between the second clamping arms 32 of the two sets of clamping assemblies, and two ends of the second rotating shaft 34 are respectively connected to the third lifting lug 43 on the second clamping arm 32 of each of the two sets of clamping assemblies, so as to facilitate rotation of the third lifting lug 43, and meet the requirement of suspension connection. It is understood that in other embodiments, the third ear 43 may be omitted. In the first use state, the external hoisting device may be connected to the first lifting lug 41, the second lifting lug 42 and the third lifting lug 43 via rigging, and hoist the transversely arranged marine pipe 20 to the water surface or lower the marine pipe to the seabed. In a second practical state, the external hoisting device can be connected with the second lifting lug 42 and the third lifting lug 43 through a rigging, and the longitudinally arranged marine pipe 20 is hoisted to the water surface or is lowered to the seabed.
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 hydraulic cylinder 211 and may be located between the first clamping arm 31 and the second clamping arm 32. The number of the limiting mechanisms 50 may be two, and the two limiting mechanisms 50 may be disposed corresponding to the two sets of clamping assemblies. The limiting mechanism 50 can be used for limiting the position of the sea pipe 200. In some embodiments, the limiting mechanism 50 may include a limiting claw 51 and a bolt 52 connecting the limiting claw 51 and the hydraulic cylinder 211, and a bottom surface of the limiting claw 51 may be an arc surface or a trapezoidal surface, which may be attached to the sea pipe 200. The bolt 52 can penetrate out of the hydraulic cylinder 211 to be connected with the limiting claw 51.
Further, in some embodiments, the marine pipe retrieving tool may further include a hydraulic interface 60, the hydraulic interface 60 may be disposed on the second clamp arm 32, and the hydraulic interface 60 may be configured to be connected to an external hydraulic circuit through a connecting line and may be connected to the hydraulic cylinder 211 through a connecting line, so as to facilitate the external hydraulic circuit to inject hydraulic oil into the hydraulic cylinder 211, or the hydraulic cylinder 211 to output hydraulic oil to the external hydraulic circuit.
Further, in some embodiments, the marine pipe retrieving tool may further include a reversing valve 70, and the reversing valve 70 may be disposed on the first clamping arm 31 and may be connected to the external hydraulic oil path, which may be used to switch the hydraulic direction. During operation, the reversing valve 70 of the recovery tool can be opened and switched to a working inlet gear, hydraulic oil reaches preset pressure through an interlocking loop, then the hydraulic cylinder 211 is filled with oil to drive the plunger 212 to feed, so that the clamping mechanism 30 is driven to clamp the marine pipe 200, the reversing valve 70 is switched back to a middle-position function (O type) by observing a test calibration value of the clamping coefficient dial 80, 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-circuit 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.
Further, in some embodiments, the marine vessel retrieval tool may also include a dial 80. The dial 80 may be disposed on the top cover 11, and the second connecting portion 322 of the second clamping arm 32 may be disposed with a pointer pointing to the dial 80. The indicator 90 is rotatably disposed such that when the second clamping arm 32 is rotated, the indicator 90 is rotated, thereby indicating the clamping coefficient of the clamping mechanism 30 on the scale plate 80.
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.
Claims (10)
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).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010713376.2A CN111717725B (en) | 2020-07-22 | 2020-07-22 | Sea pipe recovery tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010713376.2A CN111717725B (en) | 2020-07-22 | 2020-07-22 | Sea pipe recovery tool |
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| Publication Number | Publication Date |
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| CN111717725A true CN111717725A (en) | 2020-09-29 |
| CN111717725B CN111717725B (en) | 2024-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290398A (en) * | 2020-10-07 | 2022-04-08 | 通伊欧轮胎株式会社 | Rubber pack holding device and rubber pack cutting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212450032U (en) * | 2020-07-22 | 2021-02-02 | 深圳海油工程水下技术有限公司 | Tool for recovering marine pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145260B (en) * | 2019-06-18 | 2023-12-12 | 湖南科技大学 | Multifunctional pipe taking and protecting manipulator applicable to submarine drilling machine with different pipe diameters |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212450032U (en) * | 2020-07-22 | 2021-02-02 | 深圳海油工程水下技术有限公司 | Tool for recovering marine pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290398A (en) * | 2020-10-07 | 2022-04-08 | 通伊欧轮胎株式会社 | Rubber pack holding device and rubber pack cutting method |
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| CN111717725B (en) | 2024-07-19 |
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