CN105129641A - Pipe lifting platform for submarine pipeline repairing - Google Patents

Pipe lifting platform for submarine pipeline repairing Download PDF

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Publication number
CN105129641A
CN105129641A CN201510469656.2A CN201510469656A CN105129641A CN 105129641 A CN105129641 A CN 105129641A CN 201510469656 A CN201510469656 A CN 201510469656A CN 105129641 A CN105129641 A CN 105129641A
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China
Prior art keywords
truss
platform
pipe
submerged pipeline
carry
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CN201510469656.2A
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Chinese (zh)
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CN105129641B (en
Inventor
赵天奉
储贵
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China University of Petroleum Beijing CUPB
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China University of Petroleum Beijing CUPB
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Publication of CN105129641A publication Critical patent/CN105129641A/en
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Abstract

The invention relates to a pipe lifting platform for submarine pipeline repairing. The pipe lifting platform is characterized by comprising a platform deck, a rectangular moon pool is arranged on the platform deck, a pair of sliding rails are arranged on the edges of the two sides of the moon pool in parallel, two pile fixing frames are arranged on the two sliding rails in a sliding manner, each pile fixing frame is connected with a pipe lifting truss in a vertical lift manner, each pipe lifting truss comprises two or more single truss sections, and every two single truss sections are connected through one or more hooping devices.

Description

A kind of for submerged pipeline maintenance carry pipe platform
Technical field
The present invention relates to a kind of offshore work platform, particularly a kind of can realize submerged pipeline promote, transfer for submerged pipeline maintenance carry pipe platform.
Background technology
Along with the high speed development of China's Offshore Oil Industry, offshore oil and gas field newly developed increases year by year, and submerged pipeline total length also increases day by day.But along with the increase of submerged pipeline total length, the degree of impairment of submerged pipeline also increases year by year.Corrosion and Mechanical Damage all likely cause submerged pipeline local pipeline section to lose efficacy, the submerged pipeline local pipeline section lost efficacy needs to carry out repair and replacement, its process generally includes following implementation step: 1. underwater desilting, connect the side of a ship in conduits cut position after the pipeline section that excision damages to withhold, then by diver along pipe arrangement floating drum or water wings; 2. carry the submerged pipeline of incision on to deck, after welding flange, transfer back of pipeline sea bed; 3. connect two conduits cut with the connecting short section with ball orchid, replace damage duct section; 4. utilize hydraulic jetting trench cutting machine to carry out ditching operation to pipe-repairing section, sunk to pipe trench.
In above-mentioned repair procedure, diver is to improve the strained condition carrying submerged pipeline when pipe operates, avoiding causing the new damage of pipeline owing to above proposing along pipe arrangement floating drum or water wings.But the binding operation of floating drum or water wings generally needs the longer time, when especially the layout number of comparatively large, the floating drum of the depth of water darker upper lifting pipe road length or water wings is more, therefore the Potential Working Time For Operation At Sea of repairing construction increases considerably.
In addition, the ditching immersed tube after the desilting before maintenance and maintenance all needs to call hydraulic jetting trench cutting machine at present and implements, and construction period the said equipment or the replacement of boats and ships also reduce the efficiency of pipeline maintenance.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the high submerged pipeline maintenance of a kind of operating efficiency with carrying pipe platform.
For achieving the above object, the present invention is by the following technical solutions: a kind ofly carry pipe platform for submerged pipeline maintenance, it is characterized in that: it comprises a platform deck, described platform deck is provided with the moon pool of a rectangle, be arranged in parallel in the both sides of the edge of described moon pool a pair slide rail, slide rail described in two is mounted slidably two wedge brackets, wedge bracket described in each vertical lift ground connection one can carry tubular truss, described in each, carry tubular truss comprise two or more truss single-unit, connected by more than one holding card device between every two described truss single-units.
Described holding card device comprises the fixed mount that is fixedly connected on truss single-unit top described in, arrange one respectively at the top at described fixed mount two ends for the first gap of accommodating truss single-unit base cross members described in another, described in two, a lateral edges of the first gap is rotationally connected one respectively with the clamp of one second gap; Described fixed mount is provided with two for fastening lock described in two being fixed on the lockout mechanism making described second gap and the position overlapped bottom the first gap.
Described lockout mechanism comprises one and is rotatably connected on non-return pin on described fixed mount; Described clamp arranges a projection, when described non-return pin props up described projection, described clamp is locked, when described non-return pin departs from described projection, described clamp is unlocked.
One is installed for mentioning a pipe device of described submerged pipeline in the described bottom carrying tubular truss, described pipe device comprise one be fixedly connected on described in carry upper link span bottom tubular truss, the bottom of described upper link span connects a main frame rotationally, the bottom of described main frame connects two grippers rotationally, and gripper described in two is oppositely arranged and upper end is connected in same rotating shaft; At hinged two hydraulic actuating cylinders in difference interval, the both sides of described main frame, the flexible the tip of the axis of hydraulic actuating cylinder described in each is all hinged on the outside of described gripper; Described platform deck is provided with Hydraulic Pump, and described Hydraulic Pump connects each described hydraulic actuating cylinder by hydraulic power line; Described main frame is arranged at intervals with multiple camera, and camera described in each is all electrically connected with the display equipment be positioned on described platform deck by camera wire.
In the described bottom carrying tubular truss, one dredging device is installed, described dredging device comprise one be fixedly connected on described in carry upper link span bottom tubular truss, the bottom of described upper link span connects a main frame rotationally, the bottom of described main frame connects two cantilevers rotationally, and cantilever described in two is oppositely arranged and upper end is connected in same rotating shaft; The end of cantilever described in two is fixedly connected with two or more jet pipe in interval respectively, described in each, the end of jet pipe is fixedly connected with a hydraulic spray, described in each, the sidewall of jet pipe connects a high-pressure water pipeline, and the other end of described high-pressure water pipeline is connected with the high-pressure hydraulic pump be positioned on described platform deck; Outer setting one jet pipe protective tube of jet pipe described in each; At hinged two hydraulic actuating cylinders in difference interval, the both sides of described main frame, the flexible the tip of the axis of hydraulic actuating cylinder described in each is all hinged on the outside of described cantilever; On described main frame, also interval arranges multiple camera, and camera described in each is all electrically connected with the display equipment be positioned on described platform deck by camera wire.
Each truss single-unit comprises four main chord tubes in square profile, and described in each, the outside of main chord tube is all fixedly connected with a rack-plate; Wedge bracket described in each is provided with four by motor-driven gear, gear described in each engages with rack-plate described in.
Described platform deck also arranges an auxiliary support frame, and described auxiliary support frame comprises a column and be fixedly connected on described platform deck and is fixedly connected on horizontal boom in the middle part of described column; The front end of described horizontal boom is between the extended line of slide rail described in two; The top of described column is connected by a steel rope with the front end of described horizontal boom; The front end of described horizontal boom connects a lifting rope by a lifting rope roller.。
Carry tubular truss described in of close described horizontal boom front end and the position near lower end is provided with a groove, a supporting plate is set rotationally in described groove.
The described platform deck of the one end near described moon pool arranges a spool.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the moon pool both sides of the present invention on platform deck arrange a pair slide rail, slide rail slides two wedge brackets are set, wedge bracket described in each can connect and one carry tubular truss in vertical lift ground, therefore conveniently will can carry tubular truss at assigned address and transfer and carry out carrying pipe to seabed and operate.2, tubular truss of carrying of the present invention is made up of multiple truss single-unit, connected by holding card device between each truss single-unit, holding card device can adjust the connection mode between truss single-unit, be fixedly connected with and hinged between switch, thus enable platform of the present invention place to increase the safety of navigating by water when the depth of water travels compared with neritic zone by proposing tubular truss bending, and can be straight to meet the length requirement on depth of water direction carrying tubular truss by proposing tubular truss adjustment compared with during the operation of territory, deep-sea in the depth of water.3, the present invention has connected pipe device or dredging device according to concrete operating mode in the bottom carrying tubular truss, plays a pipe device and is used for submerged pipeline of holding, and dredging device has been used for the mud before pipe and clears up, and also to may be used for after having repaired again the injection ditching before immersed tube.4, the present invention arranges one with the auxiliary support frame of a horizontal boom on platform deck, the front end of horizontal boom is provided with lifting rope, a bottom carrying tubular truss near horizontal boom front end is provided with a groove simultaneously, in groove, a supporting plate is set rotationally, under typical condition, lifting rope, supporting plate, play pipe device and can realize 3 liftings of submerged pipeline, due to 3 liftings, to be conducive to pipeline stressed, therefore no longer needs diver to tie up the operation of floating drum or water wings under water.5, the present invention arranges a spool on platform deck, therefore, can desilting, rise on the submerged pipeline after pipe and be rolled onto to realize recovery on spool, or transferring for flexible tube or cable.
Accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present invention;
Fig. 2 is the structural representation that the present invention carries tubular truss;
Fig. 3 is the structural representation of holding card device of the present invention;
Fig. 4 is the inner structure schematic diagram of holding card device of the present invention;
Fig. 5 is the structural representation that the present invention plays pipe device;
Fig. 6 is the schematic front view of dredging device of the present invention;
Fig. 7 is the schematic side view of dredging device of the present invention;
Fig. 8 is the structural representation of truss single-unit of the present invention;
Fig. 9 is the local structure schematic diagram of truss single-unit of the present invention;
Figure 10 is the operating diagram of the present invention under typical condition;
Figure 11 is the schematic diagram of the present invention when the depth of water works compared with neritic zone.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, a platform deck 1 drawn together by bag of the present invention, and platform deck 1 is provided with the moon pool 2 of a rectangle, and be arranged in parallel in the both sides of the edge of moon pool 2 a pair slide rail 3, two slide rails 3 are mounted slidably two wedge brackets 4, and each wedge bracket 4 vertical lift ground connection one can carry tubular truss 6.Each is carried tubular truss 6 and comprises two or more truss single-unit 61 (as shown in Figure 2), is connected between every two truss single-units 61 by least one holding card device 7.Each is carried tubular truss 6 and includes two truss single-units 61 for preferred embodiment.
As shown in figs. 2 to 4, holding card device 7 comprises a fixed mount 71, fixed mount 71 is fixedly connected on the top of a truss single-unit 61, one is arranged respectively for the first gap of another truss single-unit 61 base cross members 611 accommodating at the top at fixed mount 71 two ends, one is rotationally connected respectively with the clamp 72 of one second gap at a lateral edges of two first gap, when clamp 72 turns to the position that the second gap intersects with the first gap, the intersection of two gap can form a groove for fixing truss single-unit 61 bottom level bar 611 closed.Fixed mount 71 is also provided with two for two clamps 72 being locked in the lockout mechanism making the second gap and the position overlapped bottom the first gap.
Further, each lockout mechanism comprises one and is rotatably connected on non-return pin 73 on fixed mount 71.Clamp 72 is arranged a projection, when clamp 72 turns to the second gap with the position overlapped bottom the first gap, rotation non-return pin 73 can prop up the projection on clamp 72, makes clamp 72 be positioned at this position, realizes locking.When the projection that hand rotation non-return pin 73 makes it depart from clamp 72, namely unlock state.
Further, install one in the bottom carrying tubular truss 6 for what mention submerged pipeline 10 and play pipe device 8 or the dredging device 9 for the mud of removing submerged pipeline 10 annex being positioned at sea bed.As shown in Figure 5, play pipe device 8 to comprise one and be fixedly connected on the upper link span 81 carried bottom tubular truss 6, the bottom of upper link span 81 connects a main frame 82 rotationally, and the bottom of main frame 82 connects two gripper 83, two grippers 83 rotationally and to be oppositely arranged and upper end is connected in same rotating shaft.At hinged two hydraulic actuating cylinders 84 in difference interval, the both sides of main frame 82, the end of the telescopic shaft 841 of each hydraulic actuating cylinder 84 is all hinged on the outside of gripper 83.Platform deck 1 is provided with Hydraulic Pump (not shown), and Hydraulic Pump connects each hydraulic actuating cylinder 84 by hydraulic power line.Main frame 82 is also arranged at intervals with multiple camera 85, and each camera 85 is all electrically connected with the display equipment (not shown) be positioned on platform deck 1 by camera wire.
As shown in Figure 6, Figure 7, dredging device 9 comprises one and is fixedly connected on the upper link span 91 carried bottom tubular truss 6, the bottom of upper link span 91 connects a main frame 92 rotationally, and the bottom of main frame 92 connects two cantilever 93, two cantilevers 93 rotationally and to be oppositely arranged and upper end is connected in same rotating shaft.The end of two cantilevers 93 is fixedly connected with two or more jet pipe 94 in interval respectively, a hydraulic spray 95 is fixedly connected with at the end of each jet pipe 94, connect a high-pressure water pipeline at the sidewall of each jet pipe 94, the other end of high-pressure water pipeline is connected with the high-pressure hydraulic pump (not shown) be positioned on platform deck 1.At the outer setting one jet pipe protective tube 96 of each jet pipe 94.At hinged two hydraulic actuating cylinders 97 in difference interval, the both sides of main frame 92, the end of the telescopic shaft 971 of each hydraulic actuating cylinder 97 is all hinged on the outside of cantilever 93.On main frame 93, also interval arranges multiple camera 98, and each camera 98 is all electrically connected with the display equipment (not shown) be positioned on platform deck 1 by camera wire.
Further, as shown in Figure 8, each truss single-unit 61 comprises four main chord tubes 611 in square profile, is all fixedly connected with a rack-plate 612 in the outside of each main chord tube.Correspondingly, each wedge bracket 4 is provided with four by motor-driven gear (not shown), each gear engages with a rack-plate 612, to realize by the dipping and heaving carrying tubular truss 6 of electric machine control.
Further, as shown in Figure 1, platform deck 1 also arranges an auxiliary support frame 11, auxiliary support frame 11 comprises one and is fixedly connected on column on platform deck 1 111 and and is fixedly connected on horizontal boom 112 in the middle part of column 111, and the front end of horizontal boom 112 is between the extended line of two slide rails 3.The top of column 111 is connected by a steel rope 113 with the front end of horizontal boom 112, to form firm triangular structure.The front end of horizontal boom 112 connects a lifting rope 114 by a lifting rope roller (not shown).As shown in Figure 9, carry tubular truss 6 and the position of lower end is provided with a groove, a supporting plate 613 is set rotationally in groove for one of close horizontal boom 112 front end.The comparatively typical occupation mode of the present invention installs dredging device 9 near a bottom carrying tubular truss 6 of horizontal boom 112 front end, and pipe device 8 has been installed in another bottom carrying tubular truss 6, under this mode of operation, utilize lifting rope 114, supporting plate 613 and play 3 liftings that pipe device 8 can realize submerged pipeline 10, due to 3 liftings, to be conducive to pipeline stressed, therefore no longer needs diver to tie up the operation of floating drum or water wings under water.
Further, the platform deck 1 of the one end near moon pool 2 also arranges a spool 12.Desilting, playing the submerged pipeline 10 after pipe can to realize recovery on above reel-to-reel axle 12; Spool 12 can also be used for transferring of flexible tube or cable.
Carry tubular truss 6 for each below and adopt two truss single-units 61, use procedure of the present invention is described:
The present invention in use, need first described pipe platform of carrying to be travelled to treating operation marine site, in the process of navigating, for increasing the safety of navigation, holding card device 7 is made only to be connected with upper strata truss single-unit 61 one end, be now hinged between two truss single-units 61, thus the upper strata truss single-unit 61 can carrying tubular truss 6 by two bend and by support body 13 (as shown in Figure 10) stable support.When the depth of water exceedes the length of lower floor's truss single-unit 61, transfer lower floor's truss single-unit 61 and make its top concordant with wedge bracket 4, upper strata truss single-unit 61 is holded up and holding card device 7 two ends are connected with upper strata truss single-unit 61 simultaneously.Then transfer the position carrying tubular truss 6 to submerged pipeline 10 place, utilize dredging device 9 to carry out desilting or utilized pipe device 8 to be promoted by submerged pipeline.In typical operating mode, near a bottom carrying tubular truss 6 of horizontal boom 112 front end, dredging device 9 is installed, and pipe device 8 has been installed in another bottom carrying tubular truss 6, under this operating mode, utilize lifting rope 114, supporting plate 613 and play 3 liftings that pipe device 8 can realize submerged pipeline 10, improving the force-bearing situation of submerged pipeline.After submerged pipeline 10 is promoted to moon pool 2, carry out repair.
When the depth of water at submerged pipeline 10 place needing to repair is more shallow, also two can be carried bottom tubular truss 6 and all be replaced by pipe device 8 (as shown in figure 11), two pipe devices 8 are picked up submerged pipeline 10 simultaneously and are promoted to moon pool 2 and carry out repair.
The present invention is only described with above-described embodiment; the structure of each parts, setting position and connection thereof all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out individual part according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.

Claims (9)

1. one kind for submerged pipeline maintenance carry pipe platform, it is characterized in that: it comprises a platform deck, described platform deck is provided with the moon pool of a rectangle, be arranged in parallel in the both sides of the edge of described moon pool a pair slide rail, slide rail described in two is mounted slidably two wedge brackets, wedge bracket described in each vertical lift ground connection one can carry tubular truss, carries tubular truss and comprises two or more truss single-unit, connected between every two described truss single-units by more than one holding card device described in each.
2. as claimed in claim 1 a kind of for submerged pipeline maintenance carry pipe platform, it is characterized in that: described holding card device comprises the fixed mount that is fixedly connected on truss single-unit top described in, arrange one respectively at the top at described fixed mount two ends for the first gap of accommodating truss single-unit base cross members described in another, described in two, a lateral edges of the first gap is rotationally connected one respectively with the clamp of one second gap; Described fixed mount is provided with two for fastening lock described in two being fixed on the lockout mechanism making described second gap and the position overlapped bottom the first gap.
3. a kind ofly as claimed in claim 2 carry pipe platform for submerged pipeline maintenance, it is characterized in that: described lockout mechanism comprises one and is rotatably connected on non-return pin on described fixed mount; Described clamp arranges a projection, when described non-return pin props up described projection, described clamp is locked, when described non-return pin departs from described projection, described clamp is unlocked.
4. as described in claim 1 or 2 or 3 a kind of for submerged pipeline maintenance carry pipe platform, it is characterized in that: install one in the described bottom carrying tubular truss for mentioning a pipe device of described submerged pipeline, described pipe device comprise one be fixedly connected on described in carry upper link span bottom tubular truss, the bottom of described upper link span connects a main frame rotationally, the bottom of described main frame connects two grippers rotationally, and gripper described in two is oppositely arranged and upper end is connected in same rotating shaft; At hinged two hydraulic actuating cylinders in difference interval, the both sides of described main frame, the flexible the tip of the axis of hydraulic actuating cylinder described in each is all hinged on the outside of described gripper; Described platform deck is provided with Hydraulic Pump, and described Hydraulic Pump connects each described hydraulic actuating cylinder by hydraulic power line; Described main frame is arranged at intervals with multiple camera, and camera described in each is all electrically connected with the display equipment be positioned on described platform deck by camera wire.
5. as described in claim 1 or 2 or 3 a kind of for submerged pipeline maintenance carry pipe platform, it is characterized in that: in the described bottom carrying tubular truss, one dredging device is installed, described dredging device comprise one be fixedly connected on described in carry upper link span bottom tubular truss, the bottom of described upper link span connects a main frame rotationally, the bottom of described main frame connects two cantilevers rotationally, and cantilever described in two is oppositely arranged and upper end is connected in same rotating shaft; The end of cantilever described in two is fixedly connected with two or more jet pipe in interval respectively, described in each, the end of jet pipe is fixedly connected with a hydraulic spray, described in each, the sidewall of jet pipe connects a high-pressure water pipeline, and the other end of described high-pressure water pipeline is connected with the high-pressure hydraulic pump be positioned on described platform deck; Outer setting one jet pipe protective tube of jet pipe described in each; At hinged two hydraulic actuating cylinders in difference interval, the both sides of described main frame, the flexible the tip of the axis of hydraulic actuating cylinder described in each is all hinged on the outside of described cantilever; On described main frame, also interval arranges multiple camera, and camera described in each is all electrically connected with the display equipment be positioned on described platform deck by camera wire.
6. a kind ofly as claimed in claim 1 or 2 carry pipe platform for submerged pipeline maintenance, it is characterized in that: each truss single-unit comprises four main chord tubes in square profile, and the outside of main chord tube is all fixedly connected with a rack-plate described in each; Wedge bracket described in each is provided with four by motor-driven gear, gear described in each engages with rack-plate described in.
7. as claimed in claim 1 or 2 a kind of for submerged pipeline maintenance carry pipe platform, it is characterized in that: on described platform deck, also arrange an auxiliary support frame, described auxiliary support frame comprises a column and be fixedly connected on described platform deck and is fixedly connected on horizontal boom in the middle part of described column; The front end of described horizontal boom is between the extended line of slide rail described in two; The top of described column is connected by a steel rope with the front end of described horizontal boom; The front end of described horizontal boom connects a lifting rope by a lifting rope roller.
8. that states as claim 7 a kind ofly carries pipe platform for submerged pipeline maintenance, it is characterized in that: near carrying tubular truss described in one of described horizontal boom front end, the position near lower end being provided with a groove, in described groove, arranging a supporting plate rotationally.
9. as claimed in claim 1 or 2 a kind of for submerged pipeline maintenance carry pipe platform, it is characterized in that: near described moon pool one end described platform deck on a spool is set.
CN201510469656.2A 2015-08-04 2015-08-04 It is a kind of to carry pipe platform for submarine pipeline maintenance Active CN105129641B (en)

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Publication number Priority date Publication date Assignee Title
WO2018000545A1 (en) * 2016-06-26 2018-01-04 杨越 Connecting and receiving assembly for maintaining unmanned shipborne pipeline
CN112139752A (en) * 2020-09-11 2020-12-29 深圳海油工程水下技术有限公司 Deep water sea pipe maintenance and replacement method

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CN112139752A (en) * 2020-09-11 2020-12-29 深圳海油工程水下技术有限公司 Deep water sea pipe maintenance and replacement method

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