CN105782635A - Split type hydraulic repair device for submarine pipelines - Google Patents
Split type hydraulic repair device for submarine pipelines Download PDFInfo
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- CN105782635A CN105782635A CN201610347771.7A CN201610347771A CN105782635A CN 105782635 A CN105782635 A CN 105782635A CN 201610347771 A CN201610347771 A CN 201610347771A CN 105782635 A CN105782635 A CN 105782635A
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- sliding
- ring
- obturator
- cone
- hydraulic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/26—Repairing or joining pipes on or under water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
Abstract
The invention provides a split type hydraulic repair device for submarine pipelines. The split type hydraulic repair device is applied to the repair work of the submarine pipelines badly broken. According to the repair device, the multiple sealing technologies of conical metal loops, trapezoidal metal loops and metal rings are adopted, and the submarine pipelines can be fast repaired according to the special structures of split type symmetric thick-wall cylinders and hydraulic propelling systems; the double metal loop sealing technologies of the bi-conical metal loops and the trapezoidal metal loops are organically combined, and fixing and sealing between the repair device and cut pipelines can be realized; according to the multiple metal sealing technologies of combining the pyramid metal loops with the hexagonal metal rings, fixing and sealing between pipe end sealing devices and repairers as well as between the repairers and slipping sealing devices and slipping bodies can be realized; the hydraulic propelling systems provide driving force, and therefore the pipe end sealing devices, the repairers and the slipping sealing devices can be propelled in the axial directions of the slipping bodies, fast and automatic joint between the repair device and the two pipe ends of the cut pipelines can be realized, and the repair device has the advantages that sealing is reliable and the repair time is short.
Description
Technical field
The present invention relates to a kind of ocean engineering field and repair submarine pipeline device, particularly relate to Split type hydraulic prosthetic device during a kind of submarine pipeline serious damage.
Background technology
The submarine pipeline in ocean engineering field is due to the particularity of its operating condition under water, there is dielectric corrosion, anchorage regardless, geological disaster and ocean development damage from third-party equivalent risk, and thus cause submarine pipeline damage accident, submarine pipeline is once occur to leak or after major injury, not only result in that ocean water body pollutes, petroleum resources waste and offshore production are interrupted, but also can to downstream and normal production of terminal use adversely affect.
Recovery technique and scheme that submarine pipeline is concrete are different because of its damage type and operating water depth, and the main reparation means taked at present can be summarized as recovery technique and recovery technique waterborne under water.Wherein, mechanical type closure and the closure of composite reinforcing material are recovery technique under water, have an advantage in that operation is simple, the implementation cycle is shorter, can be used for the pipe leakage without big mechanically deform that the reasons such as burn into mother metal defect, crackle cause, but when submarine pipeline is occurred to serious damage or has moderate finite deformation, be just difficult to effectively block reparation.Lift method reparation is mainly a kind of recovery technique waterborne, it is, after being excised under water by damaged pipeline section, two pipe ends after cutting are promoted to operation at sea wire bonding flange respectively, water is finally descended to complete to connect, this technology has evaded the risk in process under water, more in shallow water area application at present, its shortcoming is that marine butt welding construction technology is complicated, operating risk is big, promote and lower water operation easily causes pipeline section cripling and bends, it is often more important that the flow process of this technology is complex and repair time is longer.The feature of the technology of pipeline section Replacement and Repair under water is applied widely, the various forms of submarine pipeline breakage reparations such as corrosion or fracture can be completed, but the production technology that shortcoming is reparation this key spare parts of mechanical connector rests in external specialized company hands always, domestic but without forming corresponding research and development and production technology ability, and its external order cycle time is longer.
Summary of the invention
In order to effectively solve the quick reparation problem of submarine pipeline and overcome defect and the deficiency of existing recovery technique and device existence, Split type hydraulic prosthetic device when it is an object of the invention to provide a kind of applicable submarine pipeline serious damage or moderate finite deformation occurs.This reparation submarine pipeline device adopts cone-shaped metal circle and the multi-sealed technology such as trapezoidal quoit and becket, and the special tectonic and hydraulic propelling system according to split type symmetrical thick-wall cylinder realizes the quick of submarine pipeline and repair, possess and seal reliable and that repair time is short feature.
The technical solution adopted for the present invention to solve the technical problems is that a kind of Split type hydraulic of exploitation repairs submarine pipeline device, is mainly made up of end sealing device, obturator, sliding sealer, hydraulic propelling system and a few part of slide mass.In repair, driving force end sealing device, obturator and sliding sealer that hydraulic propelling system provides is relied on axially to advance along slide mass, till the inwall male cone (strobilus masculinus) of end sealing device external seal body overlaps with the prefabricated conical surface of cutting pipeline pipe end；Then hydraulic propelling system is dismantled, and quickly screw each pipe end stud of end sealing device, rely on external seal body and interior seal body and repair the clamping force and thrust transmitted between body, biconial quoit and trapezoidal quoit are sequentially generated deformation and the prefabricated anchor ring with cutting pipeline forms quoit and seals, simultaneously outer hexagonal metallic ring be deformed and and each seal body of end sealing device between and end sealing device and obturator between formation metal loop seals；Then each sliding stud of sliding sealer is screwed, rely on sliding dish and sliding ring and repair thrust and the clamping force that body transmits, single cone-shaped metal circle is deformed after moving axially and progressively fitting with the outer ring surface of sliding body, formation quoit seals, in simultaneously, hexagonal metallic ring is deformed and forms metal loop seals between obturator and sliding sealer, is achieved in each parts of prosthetic device and is connected and sealing with cutting the fixing of pipeline enclosure.
This reparation submarine pipeline device global design is split type cylinder holohedral symmetry structure, wherein end sealing device, obturator, sliding sealer and hydraulic propelling system all adopt split left and right formula structure, namely end sealing device, obturator, sliding sealer all contain the monomer that two, left and right structure is all identical with specification with hydraulic propelling system, and two monomers are all symmetrically arranged in the both sides of slide mass around, slide mass then adopts symmetrical single pipe structure.
This reparation submarine pipeline device adopts cone-shaped metal circle and the multi-metal Sealing Technology such as trapezoidal quoit and becket to organically combine.The cross section of trapezoidal quoit is isosceles trapezoid, cone-shaped metal circle includes biconial quoit and single cone-shaped metal circle, the outer ring surface of biconial quoit adopts the Double-conical-surface shape being arranged symmetrically with, the tapering of two conical surfaces and cone height all equal, and the outer ring surface of single cone-shaped metal circle then adopts single conical surface shape.The tapering of trapezoidal quoit, biconial quoit and single cone-shaped metal circle male cone (strobilus masculinus) is sequentially reduced the cone height of its male cone (strobilus masculinus) and is then gradually increased, simultaneously single cone-shaped metal circle, rectangular metal circle and biconial quoit vertically from inside to outside respectively concentric be arranged on the outer ring surface of sliding body and the prefabricated anchor ring of cutting pipeline, and each quoit is internally provided with equally distributed tinsel and its outer wrap has tinsel.
Metal loop seals technology includes interior hexagonal metallic ring and outer hexagonal metallic ring, interior hexagonal metallic ring and outer hexagonal metallic ring layered arrangement from inside to outside vertically in groups, often organize the hexagonal metallic ring all containing two concentric arrangements, its China and foreign countries' hexagonal metallic ring includes parallel placement between two groups and two groups of beckets, and interior hexagonal metallic ring only has one group.The cross section of each hexagonal metallic ring is all in Long Hexagon, and each Long Hexagon all congruence and the centrage in its elongated cross section are all paralleled with the tubular axis of prosthetic device, simultaneously each hexagonal metallic ring all adopt crude metal ring body and its outside be all enclosed with tinsel.
End sealing device adopts split type thick-wall cylinder structure, and realizing between each seal body of end sealing device according to becket multi-metal Sealing Technology and end sealing device is connected and sealing with fixing between obturator, it includes external seal body, interior seal body, biconial quoit and outer hexagonal metallic ring.
The inwall of external seal body adopts the anchor ring of ladder revolving body, and the outer side ring surface of its inwall adopts the rounding conical surface, and the tapering of external seal inner body wall male cone (strobilus masculinus) is high with cone equal with the tapering of the cutting prefabricated conical surface of pipeline pipe end and cone height；The interior side ring surface of external seal inner body wall then adopts taper seat, the tapering of external seal inner body wall inner conical surface and cone height are all higher than tapering and the cone height of the cutting prefabricated conical surface of pipeline pipe end, and the tapering of its inwall inner conical surface equal to the tapering of biconial quoit male cone (strobilus masculinus), its cone Gao Ze is high more than the cone of biconial quoit male cone (strobilus masculinus).Outside the outer ring surface of external seal body, car is shaped with taper seat, and the tapering of this taper seat is equal to the tapering of external seal inner body wall inner conical surface.Being provided with the annular groove of two concentric arrangements on the inner side end of external seal body, the cross section of this annular groove is isosceles trapezoid and its one group of outer hexagonal metallic ring of interior configuration.
The end face outside of interior seal body is all identical with the annular groove specification size of external seal body and shape with two annular grooves set on the end face of middle part, and the outer hexagonal metallic ring of configuration another set in the annular groove of wherein end surface, the inner side end of interior seal body then adopts taper seat.The inner wall outside anchor ring of interior seal body adopts the rounding conical surface, the conical surface of inboard wall of interior seal body is all identical with the tapering of external seal inner body wall inner conical surface and cone height, and inside the outer ring surface of interior seal body and repair and adopt matched in clearance to form friction pair between the inwall of body, between the prefabricated anchor ring of its inner wall cylinder and cutting pipeline, adopt matched in clearance to form moving sets simultaneously.
The surrounding same position place of external seal body and interior seal body is along the circumferential direction drilled with the pipe end circular hole of same specification size and number, and in each pipe end circular hole of external seal body and interior seal body, configuration pipe end stud realizes coupling between two splits of end sealing device and obturator simultaneously.Additionally, configuration biconial quoit in the axially symmetric layout of conical surface of inboard wall of the inwall inner conical surface of external seal body and interior seal body and the symmetrical conical surface ring cavity that formed.
Obturator adopts thick-wall cylinder structure, and organically combine according to the double metal circle Sealing Technology of its trapezoidal quoit and end sealing device biconial quoit and to realize fixing being connected and sealing between prosthetic device with cutting pipeline, fixing being connected and sealing according to what the metal sealing technology of obturator list cone-shaped metal circle and becket realized between obturator with slide mass and sliding sealer, it includes repairing body, trapezoidal quoit, gasket ring, single cone-shaped metal circle, interior hexagonal metallic ring, gland and rest simultaneously.
The two ends repairing body are along the circumferential direction drilled with and the pipe thread hole of external seal body and interior seal body pipe end circular hole same position and quantity.The variable cross-section place of the inner wall outside ring cavity repairing body forms clip and positions gasket ring, and the variable cross-section place of its inner wall ring cavity also forms clip and positions gland, the middle ring cavity of its inwall then processes along the circumferential direction evenly distributed groove, totally eight, each groove is axially disposed, the two sides of each groove are parallel to each other and the end face of each groove is on the same face of cylinder simultaneously, and each wall of the inwall and groove thereof of repairing body all carries out polish.
The end face outside of gasket ring adopts the rounding conical surface, and all identical with the tapering of interior seal body inner side end and cone height, while configure trapezoidal quoit with the inner side end of interior seal body in axially symmetric layout and the symmetrical conical surface ring cavity that formed.
The outer ring surface of gland adopts the ladder surface of revolution and matches with the inwall repairing body, the outside of gland inwall adopts cylinder then to adopt taper seat inside it, the single cone-shaped metal circle of taper-face ring intracavity that gland inwall is formed configuration, the tapering of gland conical surface of inboard wall is equal with the tapering of single cone-shaped metal circle male cone (strobilus masculinus) and its cone Gao Ze more than the cone height of single cone-shaped metal circle male cone (strobilus masculinus).
Rest is uniformly distributed in the middle part of the outer ring surface repairing body, it is divided into three groups, one of which is positioned at the surface repairing body, branch's holder and two branches that often group rest contains two monomers hold in the palm parallel placement, the specification size of each branch holder is all identical with size, and the holder of each branch all adopts square plate, the opening diameter in the middle of it is equal, and coordinates with each outer bearing pin respectively and realize repairing body and coupling between each hydraulic cylinder of hydraulic propelling system.
Sliding sealer adopts the structure that ring flange and ring body combine, and is moved by axial propelling extrusion and realize conical seal ring and metal loop seals, and it includes sliding dish and sliding ring.
The surrounding of sliding dish is along the circumferential direction drilled with the sliding circular hole of specification size and number same with external seal body and interior seal body pipe end circular hole, and in each sliding circular hole, configuration sliding stud realizes coupling between sliding sealer and obturator simultaneously.The inwall of sliding dish and the outer ring surface of sliding ring all adopt the ladder surface of revolution, and the interior outer cylinder variable cross-section place of sliding dish inwall adopts the rounding conical surface to carry out transition.
The outside of sliding ring outer ring surface carry out polish and and repair body inwall between adopt matched in clearance and form friction pair, simultaneously the arranged outside of its outer ring surface has the annular groove of two hierarchal arrangement, the cross section of every layer of annular groove all rectangular and its in be full of grease.It addition, the rounding conical surface at the interior outer cylinder of sliding ring outer ring surface and cylinder variable cross-section place respectively with the inwall precise match of sliding dish.
Slide mass is end sealing device, obturator and sliding sealer provide the sliding passage axially advanced, and it includes sliding body, sliding key and bearing.The internal diameter of sliding body is equal to the internal diameter of cutting pipeline, and the outer ring surface of sliding body carries out polish simultaneously, and the both sides car of its outer ring surface is shaped with pipe screw thread.
Sliding key contains left and right two structures monomer all identical with specification, and two monomers are symmetrically arranged in the both sides of sliding body around.Sliding key adopts spline structure, and the specification of each key is corresponding with the groove of reparation body with position, is respectively formed sliding pair between each key and each wall repairing body channel of sliding key simultaneously.The inwall of sliding key is positioned the two side ends of sliding body by pipe thread connection, and the end face outside of sliding key keeps concordant respectively with the both sides end face of sliding body.
Bearing hierarchal arrangement, in the middle part of the outer ring surface of sliding body, is divided into two-layer and symmetrically placed, and every layer of bearing is evenly distributed in the circumferential direction, and its position is corresponding with each group of rest with quantity.The specification size of each bearing is all identical with size, each bearing all adopts class right-angled trapezium steel plate simultaneously, and its medial surface is processed into arc surface, to improve the stress distribution on each bearing, its short brink has then designed U-shaped groove, opening diameter on U-shaped groove two side is equal, and coordinates with each interior bearing pin respectively and realize coupling between sliding body with each hydraulic cylinder of hydraulic propelling system.
This reparation submarine pipeline device comprises the hydraulic propelling system that two sets are independent, is used for providing driving force, it is achieved prosthetic device and fast automatic docking theeing cut pipeline two pipe end.Two set hydraulic propelling systems realize the connection between obturator and slide mass each through rest and bearing, and complete axially advancing and location of end sealing device, obturator and sliding sealer.Often set hydraulic propelling system all adopts along equally distributed three the independent hydraulically controlled cylinders of sliding body outer ring surface and is arranged symmetrically with along slide mass intermediate cross-section, and each hydraulic cylinder is axially placed along slide mass.The hydraulic oil of all independent hydraulically controlled cylinders is each through the unified supply of main oil pump and through multiple directional control valve independent assortment, realize the axial propulsion functions of two monomers about end sealing device, obturator and sliding sealer respectively, and often overlap the automatic synchronization propelling of each hydraulic cylinder in hydraulic propelling system.All independent hydraulic cylinders all adopt the ram cylinder of same model, the cylinder barrel of hydraulic cylinder is fixed by outer bearing pin and obturator, its piston rod then carries out grappling by interior bearing pin and slide mass, and in simultaneously, the axle head of bearing pin and outer bearing pin has all been processed tapped blind hole and configured hex head screw and be fixed.
The diameter of the internal diameter of biconial quoit in end sealing device, the minimum anchor ring diameter of external seal inner body wall and interior seal body inner wall cylinder is all equal with the internal diameter of gasket ring in obturator and trapezoidal quoit.Meanwhile, end sealing device China and foreign countries' seal body and interior seal body and sliding dish in sliding sealer and to repair the outer ring surface diameter of body in obturator all equal.
The internal diameter of single cone-shaped metal circle in obturator and the internal diameter of sliding ring in the diameter of gland inwall cylinder, sliding sealer and in slide mass the external diameter of sliding body be equal to the external diameter of cutting pipeline.
Obturator is repaired the axial length of the middle ring cavity of body more than the axial length sum of single sliding key in cutting pipe prefabrication anchor ring and slide mass.Meanwhile, in slide mass the axial length of sliding body outer ring surface more than gland outer ring surface in slide mass two sliding keys and bearing long side, two, left and right obturator and the axial length summation of sliding ring outer ring surface in the sliding sealer of two, left and right.
Obturator is repaired body both sides end face all identical with the annular groove specification size of external seal body and interior seal body and shape with two annular grooves set in sliding dish end face outside in sliding sealer, and hexagonal metallic ring in the interior configuration of annular groove repairing body inner side end.
In obturator, in gland inwall cylinder and sliding sealer, the inwall of sliding ring all and adopts matched in clearance to form moving sets between the outer ring surface of sliding body in slide mass.
What the present invention can reach has the technical effect that, this reparation submarine pipeline device adopts cone-shaped metal circle and the multi-sealed technology such as trapezoidal quoit and becket, and the special tectonic and hydraulic propelling system according to split type symmetrical thick-wall cylinder realizes the quick of submarine pipeline and repair；Organically combine according to biconial quoit and trapezoidal quoit double metal circle Sealing Technology, it is achieved prosthetic device being fixed with cutting pipeline enclosure and sealing；Complete single cone-shaped metal circle by the axial propelling extrusion of sliding sealer and interior hexagonal metallic ring seals and combine the multi-metal Sealing Technology of outer hexagonal metallic ring sealing, it is achieved fixing between end sealing device with obturator and obturator with sliding sealer and slide mass is connected and sealing；Hydraulic propelling system provides driving force to guarantee that end sealing device, obturator and sliding sealer axially can advance along slide mass, complete fast automatic docking of prosthetic device and cutting pipeline two pipe end, so that this reparation submarine pipeline device possesses seals reliable and that repair time is short feature.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated, but the invention is not limited in following example.
Fig. 1 is the typical structure sketch repairing submarine pipeline device according to Split type hydraulic proposed by the invention.
Fig. 2 is that Split type hydraulic repairs the structure diagram of end sealing device in submarine pipeline device.
Fig. 3 is that Split type hydraulic repairs the structure diagram of obturator in submarine pipeline device.
Fig. 4 is the A A sectional view of Fig. 3.
Fig. 5 is that Split type hydraulic repairs the structure diagram of sliding sealer in submarine pipeline device.
Fig. 6 is that Split type hydraulic repairs the structure diagram of slide mass and hydraulic propelling system hydraulic cylinder in submarine pipeline device.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is that Split type hydraulic repairs the schematic diagram of hydraulic propelling system in submarine pipeline device.
Fig. 9 is the automatic butt work flow sketch that Split type hydraulic repairs submarine pipeline device.
Figure 10 is fixing connection and the sealing operation general flow chart that Split type hydraulic repairs submarine pipeline device.
1-end sealing device in figure, 2-obturator, 3-hydraulic propelling system, 4-sliding sealer, 5-slide mass, seal body in 6-, 7-biconial quoit, 8-external seal body, the outer hexagonal metallic ring of 9-, 10-pipe end stud, the trapezoidal quoit of 11-, 12-gasket ring, 13-rest, the outer bearing pin of 14-, hexagonal metallic ring in 15-, the mono-cone-shaped metal circle of 16-, 17-gland, 18-repairs body, 19-sliding dish, 20-sliding ring, 21-sliding stud, 22-sliding key, 23-sliding body, 24-bearing, bearing pin in 25-, 26-hydraulic cylinder, 27-piston rod, 28-oil-in, 29-cylinder barrel, 30-oil-out, 31-multiple directional control valve.
Detailed description of the invention
In FIG, Split type hydraulic reparation submarine pipeline device is made up of end sealing device 1, obturator 2, hydraulic propelling system 3, sliding sealer 4 and slide mass 5.Before this reparation submarine pipeline device assembles, the outer surface of end sealing device 1, obturator 2, sliding sealer 4 and slide mass 5 main element carries out process of spraying paint respectively, it is prevented that seawater corrosion；The gland of obturator 2 and the sliding ring of sliding sealer 4 should move and fluent flexibly along the sliding body of slide mass 5；The sliding key of slide mass 5 normally should slide and fluent along each groove of reparation body of obturator 2, and keeps obturator 2 and the cleaning of slide mass 5 inwall；Meanwhile, check that each quoit and the becket of each becket of end sealing device 1 and obturator 2 have not damaged, check that whether firmly and have non-corroding each bearing pin and thread connection place.
In FIG, when this reparation submarine pipeline device assembles, coupled by pipe end stud evenly distributed in the circumferential direction between end sealing device 1 and obturator 2, then coupled by sliding stud evenly distributed in the circumferential direction between obturator 2 and sliding sealer 4；Hydraulic propelling system 3 is fixed with obturator 2 by outer bearing pin and carries out grappling by interior bearing pin with slide mass 5 thus realizing coupling between obturator 2 and slide mass 5, simultaneously the reparation body precision-fit of the sliding key of slide mass 5 and obturator 2.
In FIG, during this reparation submarine pipeline device operation, prosthetic device axially advances pipe end sealer 1, obturator 2 and sliding sealer 4 by hydraulic propelling system 3 and cuts that pipeline two pipe end is fast automatic docks；Seal and be fixedly connected by screwing biconial quoit that pipe end stud formed and trapezoidal quoit double metal circle between prosthetic device and cutting pipeline, simultaneously seal and be fixedly connected also by screwing the multiple outer hexagonal metallic ring that pipe end stud formed between each seal body of end sealing device 1 and between end sealing device 1 and obturator 2；The single cone-shaped metal circle formed by screwing sliding stud between obturator 2 and slide mass 5 and sliding sealer 4 seals and interior hexagonal metallic ring seals and is fixedly connected.
In fig. 2, in in end sealing device 1, the inner diameter of seal body 6 and external seal body 8 and the internal diameter of biconial quoit 7 and outer hexagonal metallic ring 9 are all adjusted according to the prefabricated anchor ring diameter of submarine pipeline after cutting, and the radial thrust that the wall thickness of interior seal body 6 and external seal body 8 produces according to biconial quoit 7 deformation is designed；The specification of biconial quoit 7 and outer hexagonal metallic ring 9 carries out type selecting after considering the factors such as physical property and the pressure of oil gas medium physical property and maximum delivery pressure and submarine pipeline surrounding seawater in submarine pipeline.
In fig. 2, in end sealing device 1 quantity of pipe end stud 10 and screw strength according to interior seal body 6 and external seal body 8 clamp biconial quoit 7 be deformed required clamping force, interior seal body 6 extrude trapezoidal quoit be deformed required thrust and interior seal body 6, external seal body 8 and repair body clamp outer hexagonal metallic ring 9 be deformed required clamping force make a concerted effort be designed.
In fig. 2, in end sealing device 1, biconial quoit 7 is deformed by the clamping of interior seal body 6 and external seal body 8 and forms sealing, and outer hexagonal metallic ring 9 is then respectively through interior seal body 6 and external seal body 8 and interior seal body 6 with repair the clamping of body and be deformed and form sealing.
In figs. 3 and 4, in obturator 2, the inner diameter of gasket ring 12 and the internal diameter of trapezoidal quoit 11 are adjusted according to the prefabricated anchor ring diameter of submarine pipeline after cutting, and gland 17 all keeps consistent with the submarine pipeline external diameter to repair with the inner diameter repairing body 18 and single cone-shaped metal circle 16 with the internal diameter of interior hexagonal metallic ring 15, the radial thrust that the wall thickness of reparation body 18 produces according to trapezoidal quoit 11 and single cone-shaped metal circle 16 deformation simultaneously is designed.The specification of trapezoidal quoit 11 and single cone-shaped metal circle 16 carries out type selecting according to oil gas medium physical property in submarine pipeline and maximum delivery pressure, and physical property and the pressure of the specification of interior hexagonal metallic ring 15 then foundation submarine pipeline surrounding seawater are designed.
In figs. 3 and 4, in obturator 2, trapezoidal quoit 11 is deformed by the common extruding of interior seal body 6 and gasket ring 12 and forms sealing, single cone-shaped metal circle 16 is deformed by the common extruding of gland 17 and sliding sealer 4 sliding ring and forms sealing, and interior hexagonal metallic ring 15 is then deformed by the clamping of reparation body 18 and sliding sealer 4 sliding dish and forms sealing.And, repair body 18 and coordinated with outer bearing pin 14 by the rest 13 on its outer ring surface and couple with between each hydraulic cylinder of hydraulic propelling system 3.
In Figure 5, in sliding sealer 4, the inner diameter of sliding ring 20 is adjusted according to the submarine pipeline external diameter to repair, the quantity of sliding stud 21 and screw strength according to sliding ring 20 extrude single cone-shaped metal circle 16 be deformed required thrust and repair body 18 and sliding dish 19 clamp interior hexagonal metallic ring 15 be deformed required clamping force make a concerted effort be designed.
In figure 6 and figure 7, in slide mass 5, the outer ring surface diameter of sliding body 23 is adjusted according to the submarine pipeline external diameter to repair, the outer ring surface diameter of sliding key 22 then keeps consistent with the inner diameter repairing body 18, and the wall thickness of sliding body 23 then keeps consistent with the submarine pipeline wall thickness to repair.And, sliding body 23 is coordinated by the bearing 24 on its outer ring surface and interior bearing pin 25 and is coupled with between each hydraulic cylinder 26 of hydraulic propelling system 3.
In fig. 8, hydraulic propelling system 3 configures the independent hydraulically controlled cylinder 26 of six same models, six hydraulic cylinders 26 are divided into two cover systems and supply hydraulic oil through same main oil pump, cylinder barrel 29 and the obturator 2 of hydraulic cylinder 26 carry out its piston rod 27 of grappling and then carry out hinged with slide mass 5, and the hydraulic oil of multiple directional control valve 31 distribution is carried out logical oil or oil return by oil-in 28 and the oil-out 30 of six hydraulic cylinders 26 and then realized the way moving function of piston rod 27.
nullIn fig .9，The automatic butt work flow of this reparation submarine pipeline device is，After prosthetic device and cutting pipeline centering，The multiple directional control valve 31 partition liquid force feed of hydraulic propelling system 3，The oil-in 28 of cylinder barrel 29 carries out logical oil，Piston rod 27 provides driving force and is transferred to respectively repair on body 18 and sliding body 23 by rest 13 and outer bearing pin 14 and bearing 24 and interior bearing pin 25，In conjunction with each sliding pair between sliding key 22 and reparation body 18 groove，Hydraulic propelling system 3 drives end sealing device 1、Obturator 2 axially advances together with sliding body 23 with each parts of sliding sealer 4，Till the inwall male cone (strobilus masculinus) of external seal body 8 overlaps with the prefabricated conical surface of cutting pipeline pipe end，Oil-out 30 oil return of last cylinder barrel 29，Piston rod 27 unloads and dismantles each hydraulic cylinder 26，Thus complete fast automatic docking of prosthetic device and cutting pipeline two pipe end.
In Fig. 10, the fixing connection of this reparation submarine pipeline device and sealing operation flow process are, first each pipe end stud 10 in end sealing device 1 is quickly screwed, interior seal body 6, repair body 18 and gasket ring 12 moves axially towards the direction of external seal body 8 successively and progressively extrudes biconial quoit 7, trapezoidal quoit 11 and outer hexagonal metallic ring 9, rely on external seal body 8 and interior seal body 6 and repair the clamping force and thrust transmitted between body 18, biconial quoit 7 and trapezoidal quoit 11 are sequentially generated deformation and the prefabricated anchor ring with cutting pipeline forms quoit and seals, meanwhile outer hexagonal metallic ring 9 is deformed also and forms metal loop seals between each seal body of end sealing device 1 and between end sealing device 1 and obturator 2.Then, screw each sliding stud 21 of sliding sealer 4, sliding dish 19 and sliding ring 20 move axially towards the direction repairing body 18 and progressively extrude single cone-shaped metal circle 16 and interior hexagonal metallic ring 15, rely on sliding dish 19 and sliding ring 20 and repair thrust and the clamping force that body 18 transmits, single cone-shaped metal circle 16 is deformed after moving axially and progressively fitting with the outer ring surface of sliding body 23, formation quoit seals, meanwhile interior hexagonal metallic ring 15 is deformed and forms metal loop seals between obturator 2 and sliding sealer 4, thus complete each parts of prosthetic device and be connected and sealing with cutting the fixing of pipeline enclosure.
The various embodiments described above are merely to illustrate the present invention, and wherein the structure of each parts, connected mode etc. all can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a Split type hydraulic repairs submarine pipeline device, mainly it is made up of end sealing device, obturator, sliding sealer, hydraulic propelling system and slide mass, its global design is split type cylinder holohedral symmetry structure, wherein end sealing device, obturator, sliding sealer and hydraulic propelling system all adopt split left and right formula structure, and slide mass then adopts symmetrical single pipe structure；This reparation submarine pipeline device adopts cone-shaped metal circle and the multi-sealed technology such as trapezoidal quoit and becket simultaneously, and the special tectonic and hydraulic propelling system according to split type symmetrical thick-wall cylinder realizes the quick of submarine pipeline and repair, it is characterised in that:
One end sealing device；Described end sealing device adopts split type thick-wall cylinder structure, the inwall of external seal body adopts the anchor ring of ladder revolving body, and the inner side end of external seal body is provided with the annular groove of two concentric arrangements, the cross section of this annular groove is isosceles trapezoid and its one group of outer hexagonal metallic ring of interior configuration, and configures the outer hexagonal metallic ring of another set in the middle part of interior seal body in the annular groove of end face；Configuration biconial quoit in the inwall inner conical surface of external seal body and the axially symmetric layout of conical surface of inboard wall of interior seal body and the symmetrical conical surface ring cavity that formed；
One obturator；Described obturator adopts thick-wall cylinder structure, the variable cross-section place of the inner wall outside ring cavity repairing body forms clip and positions gasket ring, and the variable cross-section place of its inner wall ring cavity also forms clip and positions gland, the middle ring cavity of its inwall then processes along the circumferential direction evenly distributed groove, and each groove is axially disposed；Trapezoidal quoit is configured in the axially symmetric layout of inner side end of the end face outside of gasket ring and interior seal body and the symmetrical conical surface ring cavity that formed；The outer ring surface of gland adopts the ladder surface of revolution and matches with the inwall repairing body, the single cone-shaped metal circle of taper-face ring intracavity configuration that gland inwall is formed；Rest is uniformly distributed in the middle part of the outer ring surface repairing body, and branch's holder and two branches that often group rest contains two monomers hold in the palm parallel placement；
One sliding sealer；Described sliding sealer adopts the structure that ring flange and ring body combine, and is moved by axial propelling extrusion and realize conical seal ring and metal loop seals, and the inwall of sliding dish and the outer ring surface of sliding ring all adopt the ladder surface of revolution；The arranged outside of sliding ring outer ring surface has an annular groove of two hierarchal arrangement, simultaneously the rounding conical surface at the interior outer cylinder of sliding ring outer ring surface and cylinder variable cross-section place respectively with the inwall precise match of sliding dish；
One slide mass；Described slide mass is end sealing device, obturator and sliding sealer provide the sliding passage axially advanced, and the internal diameter of sliding body is equal to the internal diameter of cutting pipeline；Sliding key contains left and right two structures monomer all identical with specification, and two monomers are symmetrically arranged in the both sides of sliding body around, and sliding key adopts spline structure, and the specification of each key is corresponding with the groove of reparation body with position；Bearing hierarchal arrangement, in the middle part of the outer ring surface of sliding body, is divided into two-layer and symmetrically placed, and each bearing all adopts class right-angled trapezium steel plate, and its medial surface is processed into arc surface, and the design of its short brink has U-shaped groove；
One hydraulic propelling system；Described hydraulic propelling system is used for providing driving force, realize fast automatic docking of prosthetic device and cutting pipeline two pipe end, this reparation submarine pipeline device comprises the hydraulic propelling system that two sets are independent, and two set hydraulic propelling system realize the connection between obturator and slide mass each through rest and bearing, and complete axially advancing and location of end sealing device, obturator and sliding sealer；Often set hydraulic propelling system all adopts along equally distributed three the independent hydraulically controlled cylinders of sliding body outer ring surface and is arranged symmetrically with along slide mass intermediate cross-section, and each hydraulic cylinder is axially placed along slide mass.
2. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterized in that: described end sealing device, obturator, sliding sealer all contain the monomer that two, left and right structure is all identical with specification with hydraulic propelling system, and two monomers are all symmetrically arranged in the both sides of slide mass around；
Described trapezoidal quoit cross section is isosceles trapezoid, cone-shaped metal circle includes biconial quoit and single cone-shaped metal circle, the outer ring surface of biconial quoit adopts the Double-conical-surface shape being arranged symmetrically with, the tapering of two conical surfaces and cone height are all equal, and the outer ring surface of single cone-shaped metal circle then adopts single conical surface shape；The tapering of trapezoidal quoit, biconial quoit and single cone-shaped metal circle male cone (strobilus masculinus) is sequentially reduced the cone height of its male cone (strobilus masculinus) and is then gradually increased, simultaneously single cone-shaped metal circle, rectangular metal circle and biconial quoit vertically from inside to outside respectively concentric be arranged on the outer ring surface of sliding body and the prefabricated anchor ring of cutting pipeline；
Described Split type hydraulic is repaired the metal loop seals technology of submarine pipeline device and is included interior hexagonal metallic ring and outer hexagonal metallic ring, interior hexagonal metallic ring and outer hexagonal metallic ring layered arrangement from inside to outside vertically in groups, often organize the hexagonal metallic ring all containing two concentric arrangements, its China and foreign countries' hexagonal metallic ring includes parallel placement between two groups and two groups of beckets, and interior hexagonal metallic ring only has one group；The cross section of each hexagonal metallic ring is all in Long Hexagon, and the centrage in each Long Hexagon all congruence and its elongated cross section is all paralleled with the tubular axis of prosthetic device.
3. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterised in that: described end sealing device realizes between each seal body of end sealing device according to becket multi-metal Sealing Technology and end sealing device is connected and sealing with fixing between obturator；
Inside the outer ring surface of described interior seal body and repair and adopt matched in clearance to form friction pair between the inwall of body, in simultaneously, between the inner wall cylinder of seal body and the prefabricated anchor ring of cutting pipeline, matched in clearance is adopted to form moving sets；
The surrounding same position place of described external seal body and interior seal body is along the circumferential direction drilled with the pipe end circular hole of same specification size and number.
4. the Split type hydraulic according to claim 1 or 3 repairs submarine pipeline device, it is characterized in that: the inner wall outside anchor ring of described external seal body adopts the rounding conical surface, and the tapering of external seal inner body wall male cone (strobilus masculinus) is equal with the tapering of cone height and the cutting prefabricated conical surface of pipeline pipe end and cone height；The interior side ring surface of external seal inner body wall then adopts taper seat, the tapering of external seal inner body wall inner conical surface and cone height are all higher than tapering and the cone height of the cutting prefabricated conical surface of pipeline pipe end, and the tapering of its inwall inner conical surface equal to the tapering of biconial quoit male cone (strobilus masculinus), its cone Gao Ze is high more than the cone of biconial quoit male cone (strobilus masculinus)；
Outside the outer ring surface of described external seal body, car is shaped with taper seat, and the tapering of this taper seat is equal to the tapering of external seal inner body wall inner conical surface；
The end face outside of described interior seal body is all identical with the annular groove specification size of external seal body and shape with two annular grooves set on the end face of middle part, and its inner side end then adopts taper seat；The inner wall outside anchor ring of interior seal body adopts the rounding conical surface, and the conical surface of inboard wall of interior seal body is all identical with the tapering of external seal inner body wall inner conical surface and cone height.
5. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterized in that: described obturator organically combines according to the double metal circle Sealing Technology of its trapezoidal quoit and end sealing device biconial quoit and realizes fixing being connected and sealing between prosthetic device with cutting pipeline, fixing be connected and sealing according to what the metal sealing technology of obturator list cone-shaped metal circle and becket realized between obturator with slide mass and sliding sealer simultaneously；
The two ends of described reparation body are along the circumferential direction drilled with and the pipe thread hole of external seal body and interior seal body pipe end circular hole same position and quantity, each groove two sides of the middle ring cavity of reparation inner body wall are parallel to each other and the end face of each groove is on the same face of cylinder, and each wall of the inwall and groove thereof of repairing body all carries out polish；
The end face outside of described gasket ring adopts the rounding conical surface, and all identical with the tapering of interior seal body inner side end and cone height；
The inner wall outside of described gland adopts cylinder then to adopt taper seat inside it, the tapering of gland conical surface of inboard wall is equal with the tapering of single cone-shaped metal circle male cone (strobilus masculinus) and its cone Gao Ze more than the cone height of single cone-shaped metal circle male cone (strobilus masculinus)；
The rest of described obturator is divided into three groups, and one of which is positioned at the surface repairing body；The specification size of each branch holder is all identical with size, and the holder of each branch all adopts square plate, and the opening diameter in the middle of it is equal, and coordinates with each outer bearing pin respectively and realize repairing body and coupling between each hydraulic cylinder of hydraulic propelling system.
6. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterized in that: described sliding sealer includes sliding dish and sliding ring, the surrounding of sliding dish is along the circumferential direction drilled with the sliding circular hole of specification size and number same with external seal body and interior seal body pipe end circular hole, and the interior outer cylinder variable cross-section place of sliding dish inwall adopts the rounding conical surface to carry out transition；
Carry out outside the outer ring surface of described sliding ring polish and and repair and adopt matched in clearance to form friction pair between the inwall of body, simultaneously every layer of annular groove cross section outside its outer ring surface all rectangular and its in be full of grease.
7. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterised in that: described slide mass includes sliding body, sliding key and bearing, and the outer ring surface of sliding body carries out polish, and the both sides car of its outer ring surface is shaped with pipe screw thread；
Being respectively formed sliding pair between each key and each wall repairing body channel of described sliding key, the inwall of sliding key is positioned the two side ends of sliding body by pipe thread connection, and the end face outside of sliding key keeps concordant respectively with the both sides end face of sliding body；
Described bearing hierarchal arrangement and every layer of bearing is evenly distributed in the circumferential direction, its position is corresponding with each group of rest with quantity；The specification size of each bearing is all identical with size, and the opening diameter on the U-shaped groove two side of each bearing short brink is equal simultaneously, and coordinates with each interior bearing pin respectively and realize coupling between sliding body with each hydraulic cylinder of hydraulic propelling system.
8. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterized in that: the hydraulic oil of all independent hydraulically controlled cylinder of described hydraulic propelling system is each through the unified supply of main oil pump and through multiple directional control valve independent assortment, realize the axial propulsion functions of two monomers about end sealing device, obturator and sliding sealer respectively, and often overlap the automatic synchronization propelling of each hydraulic cylinder in hydraulic propelling system；
The all independent hydraulic cylinders of described hydraulic propelling system all adopt the ram cylinder of same model, the cylinder barrel of hydraulic cylinder is fixed by outer bearing pin and obturator, its piston rod then carries out grappling by interior bearing pin and slide mass, and in simultaneously, the axle head of bearing pin and outer bearing pin has all been processed tapped blind hole and configured hex head screw and be fixed.
9. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterised in that: the diameter of the internal diameter of biconial quoit in described end sealing device, the minimum anchor ring diameter of external seal inner body wall and interior seal body inner wall cylinder is all equal with the internal diameter of gasket ring in obturator and trapezoidal quoit；
Described end sealing device China and foreign countries' seal body and interior seal body and sliding dish in sliding sealer and to repair the outer ring surface diameter of body in obturator all equal；
The internal diameter of single cone-shaped metal circle in described obturator and the internal diameter of sliding ring in the diameter of gland inwall cylinder, sliding sealer and in slide mass the external diameter of sliding body be equal to the external diameter of cutting pipeline.
10. Split type hydraulic according to claim 1 repairs submarine pipeline device, it is characterised in that: described obturator is repaired the axial length of the middle ring cavity of body more than the axial length sum of single sliding key in cutting pipe prefabrication anchor ring and slide mass；
In described slide mass, the axial length of sliding body outer ring surface is more than gland outer ring surface in slide mass two sliding keys and bearing long side, two, left and right obturator and the axial length summation of sliding ring outer ring surface in the sliding sealer of two, left and right；
Described obturator is repaired body both sides end face all identical with the annular groove specification size of external seal body and interior seal body and shape with two annular grooves set in sliding dish end face outside in sliding sealer, and hexagonal metallic ring in the interior configuration of annular groove repairing body inner side end；
In described obturator, in gland inwall cylinder and sliding sealer, the inwall of sliding ring all and adopts matched in clearance to form moving sets between the outer ring surface of sliding body in slide mass.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559518A (en) * | 2017-10-25 | 2018-01-09 | 青岛理工大学 | Axle is inwardly pull-type quickly to connect submarine pipeline device |
| CN107606309A (en) * | 2017-09-20 | 2018-01-19 | 青岛理工大学 | A kind of deep-water subsea pipeline pipeline section connection operation device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1754925A1 (en) * | 2001-12-21 | 2007-02-21 | FMC Technologies S.A. | Coupler comprising sealing protecting means |
| CN104019303A (en) * | 2014-06-03 | 2014-09-03 | 哈尔滨工程大学 | Self-adaptive double-sealing-steel-ball clamping underwater pipeline connector |
| CN104196485A (en) * | 2014-08-25 | 2014-12-10 | 中国海洋石油总公司 | Internal plugging device of pipeline |
| CN204628959U (en) * | 2015-05-20 | 2015-09-09 | 福建省南安市延平海运有限公司 | A kind of pipeline fracture peculiar to vessel exempts to weld Quick connection sleeve |
| CN105043225A (en) * | 2015-04-24 | 2015-11-11 | 中国海洋石油总公司 | Three-dimensional measuring equipment for submarine pipelines |
| WO2016049646A1 (en) * | 2014-09-26 | 2016-03-31 | Actuant Corporation | Pipe repair apparatus and method |
| CN205640034U (en) * | 2016-05-23 | 2016-10-12 | 青岛理工大学 | Submarine pipeline device is restoreed to split type hydraulic pressure |
-
2016
- 2016-05-23 CN CN201610347771.7A patent/CN105782635B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1754925A1 (en) * | 2001-12-21 | 2007-02-21 | FMC Technologies S.A. | Coupler comprising sealing protecting means |
| CN104019303A (en) * | 2014-06-03 | 2014-09-03 | 哈尔滨工程大学 | Self-adaptive double-sealing-steel-ball clamping underwater pipeline connector |
| CN104196485A (en) * | 2014-08-25 | 2014-12-10 | 中国海洋石油总公司 | Internal plugging device of pipeline |
| WO2016049646A1 (en) * | 2014-09-26 | 2016-03-31 | Actuant Corporation | Pipe repair apparatus and method |
| CN105043225A (en) * | 2015-04-24 | 2015-11-11 | 中国海洋石油总公司 | Three-dimensional measuring equipment for submarine pipelines |
| CN204628959U (en) * | 2015-05-20 | 2015-09-09 | 福建省南安市延平海运有限公司 | A kind of pipeline fracture peculiar to vessel exempts to weld Quick connection sleeve |
| CN205640034U (en) * | 2016-05-23 | 2016-10-12 | 青岛理工大学 | Submarine pipeline device is restoreed to split type hydraulic pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606309A (en) * | 2017-09-20 | 2018-01-19 | 青岛理工大学 | A kind of deep-water subsea pipeline pipeline section connection operation device and method |
| CN107559518A (en) * | 2017-10-25 | 2018-01-09 | 青岛理工大学 | Axle is inwardly pull-type quickly to connect submarine pipeline device |
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| CN105782635B (en) | 2017-09-26 |
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