CN105909865B - Underwater air bag balance submarine pipeline repairing device - Google Patents
Underwater air bag balance submarine pipeline repairing device Download PDFInfo
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- CN105909865B CN105909865B CN201610430050.2A CN201610430050A CN105909865B CN 105909865 B CN105909865 B CN 105909865B CN 201610430050 A CN201610430050 A CN 201610430050A CN 105909865 B CN105909865 B CN 105909865B
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- air bag
- pipe
- balance
- submarine pipeline
- flap seat
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides an underwater air bag balance submarine pipeline repairing device which is applied to repairing operation when a submarine pipeline is seriously damaged. The submarine pipeline repairing device implements a whole set of operation processes of submarine pipeline cutting, prefabrication and pre-centering as well as balance centering, butt joint and fixed connection of underwater airbags according to a structure that double airbags and double suspension cables are symmetrically arranged on two sides of a balance pipe and a hydraulic propulsion system of a pipeline connector, and realizes repairing of a damaged pipe section of the submarine pipeline; the air bag adopts a vertical thick-wall tank body and is used for storing gas and assisting in completing balanced hoisting, centering and butt joint operations of the air bag; the balance pipe is a horizontal thick-wall pipe body and is used for storing gas and balancing the oscillation load transmitted by the offshore crane through the lifting rope in the lifting and butt joint operation together with the air bag, and the balance pipe provides buoyancy to reduce the hooking load of the crane in the recovery process of the repair device; the lifting rope completes the lifting operation of the whole set of the repairing device, and the sling realizes the connection of the air bag, the balance pipe and the pipeline connector.
Description
Technical field
The present invention relates to prosthetic devices when a kind of subsea production system submarine pipeline serious damage, more particularly to one
The quick-restoring device and its work flow of the underwater air bag balance submarine pipeline of kind.
Background technology
For the submarine pipeline of ocean engineering field due to the particularity of its underwater operating condition, there are dielectric corrosion, ships to throw
Anchor, geological disaster and ocean development damage from third-party equivalent risk, and thus cause submarine pipeline and damage accident, submarine pipeline is once
After damaging, not only results in ocean water body pollution, petroleum resources waste and offshore production and interrupt, but also can be to downstream
And the normal production of terminal user adversely affects.
The specific recovery technique of submarine pipeline and scheme are different because of its damage type and operating water depth, and that takes at present is main
Reparation means can be summarized as underwater recovery technique and recovery technique waterborne.Wherein, mechanical block blocks with composite reinforcing material
For underwater recovery technique, it the advantage is that operational method and flow be relatively easy, the implementation cycle is shorter, can be used for burn into base material
Pipe leakage without big mechanically deform caused by the reasons such as defect, crackle, however serious damage occur for submarine pipeline or have
The case where moderate finite deformation, is just difficult to realize effectively block and repair.Lift method reparation is mainly a kind of recovery technique waterborne, be
Two pipe ends after cutting are promoted to sea workboat welded flange respectively after the underwater damaged pipeline section of excision, finally descend water again
Complete connection, the technology evaded it is underwater during risk, shallow water area is mainly used at present, the disadvantage is that marine welding
It is complicated to dock construction technology, operational risk is big in operation, is promoted and lower water operation easily causes pipeline section local buckling and occurs curved
Folding, it is often more important that the flow of the technology is complex and repair time is longer.Underwater pipeline section Replacement and Repair technology its main feature is that
It is applied widely, it can complete the various forms of submarine pipeline breakage reparations such as to corrode or be broken, but the disadvantage is that repair with machinery even
The production technology and its repair device and operating process for connecing device this key spare parts rest in always external specialized company's hand
In, the domestic corresponding research and development of formation not yet and production technology and marine implementation repair ability.
Invention content
In order to effectively solve the problems, such as the quick reparation of submarine pipeline and overcome existing for existing recovery technique and operation scheme
Defect and deficiency, the object of the present invention is to provide a kind of submarine pipeline prosthetic devices using underwater air bag balance mode.Foundation
Submarine pipeline prosthetic device double bolloon and double hoist cables are symmetrically arranged in the construction of balance pipe both sides and the hydraulic thrust of pipe jointer
Into system, implements submarine pipeline cutting, prefabricated with pre-pair and the centering of underwater air bag balance, docks and the operation that is fixedly connected
Flow realizes the reparation of subsea production system submarine pipeline breakage pipeline section.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of underwater air bag balance submarine pipeline and repaiies
Apparatus for coating, the submarine pipeline prosthetic device are mainly made of air bag, balance pipe, lifting rope, hoist cable, fixture and pipe jointer, most
Quick reparation when submarine pipeline serious damage is realized eventually.
Submarine pipeline prosthetic device global design constructs for split type holohedral symmetry, and wherein air bag, lifting rope, hoist cable and fixture are equal
Using double split formula structure, i.e., air bag, lifting rope, hoist cable and fixture contain two structures in left and right and specification is identical
Monomer, and the monomer of its left and right two is symmetrically arranged in the both sides of balance pipe and pipe jointer, and balance pipe and pipe jointer
Two pipe end of submarine pipeline is fixedly connected after then using symmetrical single pipe structure, pipe jointer to be used for completing cutting.
Air bag is constructed using vertical heavy wall tank body, for storing gas and assisting the lifting of completion air bag balance, to neutralization pair
Operation is connect, it includes gas tank, gas bleeder valve, breather valve and tapping valve.Gas tank uses symmetric double end enclosure structure, material selection super
Two phase stainless steel, it is made of upper cover, tank body and low head, and upper cover and low head are all made of semiellipse sphere and symmetrical cloth
The both sides of tank body are placed in, and upper cover and low head are connected by circumferential weld with tank body；Tank body cavity wall lower part is machined with upper and lower two
A leakproofness pipe thread hole, and breather valve is respectively configured, realize that air bag homostasis pipe is linked together, and can control by breather valve
The air inflow and capacity of air bag processed；It after valve of having full communication between the higher and lower levels is opened, is inflated for balance pipe by air bag, full communication between the higher and lower levels valve closes
After closing, airbag aeration is continued as by compressor, the air pressure after inflation in two air bags is equal.The central portion of gas tank upper cover
Position setting gas bleeder valve, the amount of releasing for controlling tank body chamber indoor gas complete pipe jointer in air bag balance butt-joint operation
Tuningout, while as in prosthetic device dismounting operation seawater fill air bag channel；And the central part of gas tank low head is set
Tapping valve is set, the sundries for discharging the seawater and deposition filled in airbag chamber room.
Balance pipe use horizontal heavy wall structure of tube body, for coupling lifting rope and hoist cable, at the same store gas and with air bag one
The oscillation load that homostasis is lifted with marine loop wheel machine is transmitted through lifting rope in butt-joint operation, and balance pipe provides buoyancy and is hung with reducing
Hook of the machine in prosthetic device removal process carries, it includes base tube, upper flap seat, lower flap seat and hexagonal metallic ring.
The axis of base tube keeps vertical with the axis of two air bags and in same plane, and the both sides of base tube are respectively arranged
End flange and cecum flange, and it is recessed that annular is machined on the inner side end of the end face outside of end flange and cecum flange
Slot, the cross section of annular groove are in isosceles trapezoid, the shape and specification all same in each isosceles trapezoid section, base tube both sides
The annular groove of end flange and cecum flange is arranged symmetrically and configures hexagonal metallic ring in the ring cavity that is constituted.Hexagon gold
The cross section for belonging to ring is in Long Hexagon, and the center line of its long tee section is parallel with the axis of balance pipe, while hexagon gold
Belong to ring using crude metal ring body and its outside be enclosed with metal foil.The end flange and cecum flange of base tube both sides pass through folder
The clamping force that tight stud is applied makes hexagonal metallic ring be deformed and forms metal loop seals.
Upper flap seat and lower flap seat are located at the upper and lower part of base tube, and are arranged symmetrically successively along the outer ring surface of base tube,
Upper flap seat is respectively positioned on the inside of lower flap seat simultaneously.Upper flap seat and lower flap seat are divided into two groups, and every group of flap seat is containing there are two monomers
It is divided to flap seat and two points of flap seats is placed in parallel；Each divide the specification size of flap seat identical with size, and each flap seat is divided to be all made of half
The steel plate that round and isosceles trapezoid is combined, the opening diameter at semi-circular sheet steel center are equal；Upper flap seat respectively with each upper pin
Coordinate and realize coupling between base tube and lifting rope, coordinate respectively with each middle axis pin with flap seat at present and realizes between base tube and hoist cable
Connection.
Lifting rope is located at the top of balance pipe, and for completing the lifting operation of a whole set of prosthetic device, hoist cable is located at balance pipe
Lower part, for realizing coupling between air bag and balance pipe and pipe jointer, the axis of the axis and balance pipe of two lifting ropes and hoist cable
Line is in same plane.Lifting rope is identical with the structure of hoist cable and is made of connector, connecting cylinder and splicing, lifting rope and hoist cable
Connector it is identical with the specification of connecting cylinder；Two lifting ropes of left and right are provided with a connector, connecting cylinder and splicing, and its connector with
Using being hinged between upper flap seat, splicing is linked together with the loop wheel machine on workboat；Left and right two hoist cables configure two connectors with
Connecting cylinder and a piece-root grafting rope, and two connectors and connecting cylinder are symmetrically arranged in the both sides of hoist cable splicing and hold together successively,
It uses and is hinged between hoist cable upper connection and lower flap seat, and hoist cable lower connector is then between deck using hinged.
Connector top uses the cylinder that semicylinder and tetragonal body are combined, and the wherein section of tetragonal body is isosceles trapezoid,
The two sides in isosceles trapezoid section are tangent with the circular cross-section of semicylinder respectively, the left and right sides end face phase of connector top cylinder
It is mutually parallel, and the spacing of its both sides of the face is respectively less than the spacing of two points of flap seats and two points of decks；Connector lower part is turned round using ladder
Axis, the upper end is connected by spron with connector top cylinder, and its lower end is then coupled by screw thread with connecting cylinder.Connection
Cylinder uses long cylinder, inner wall that ladder surface of revolution structure, the top anchor ring of connecting cylinder inner wall is used to use internal thread, and among it
Annular slot is constituted at the variable cross-section of anchor ring and lower part anchor ring and positions the rope end of splicing, while splicing is from the change of connecting cylinder end
It is drawn in diameter cone.
Fixture is used for completing coupling between hoist cable and pipe jointer, it includes chuck and deck, and chuck uses semi-circular
Ring flange, the outer diameter of chuck with the small end disc diameter of circular conical surface is equal on pipe end sealer outer ring surface in pipe jointer, card
Disk is coupled by pipe end stud with pipe jointer.Deck is located at the surface of chuck, and each fixture only contains one group of card
Seat, this group of deck contain there are two monomer be divided to deck and two points of decks are placed in parallel, each divide the specification size and size of deck
It is identical；And each divide the steel plate that deck is all made of disc and rectangle is combined, disc and rectangular steel plates junction are adopted
Transition is carried out with arc surface, the thickness for dividing deck rectangular steel plates is equal with the thickness of chuck, divides deck disc steel plate center
Opening diameter divides the opening diameter at semi-circular sheet steel center of flap seat equal with upper flap seat and lower flap seat；Deck respectively with it is each under
Axis pin coordinates and realizes coupling between fixture and hoist cable, while lower bearing pin is threaded with the shaft end of upper pin and middle axis pin
Blind hole simultaneously configures hex head screw and is fixed.
Pipe cutting and pre- manufacturing are used for completing the cutting of submarine pipeline and cut the prefabricated of two pipe end anchor ring of pipeline section,
Flow is that implements submarine pipeline leak position first blows mud operation, then integrally cuts off breakage by the cold cutting mode in seabed
Pipeline section, the damaged face of leak are located at the middle part of damaged pipeline section, and the damaged pipeline section two side ends cut down are inserted in rope simultaneously respectively
It is promoted on the workboat of sea by loop wheel machine；Then, the cutting pipeline section after imderwater cutting first clears up the cement weight coating of two pipe ends
And erosion resistant coating, then it for the prefabricated cylinder on cylindrical surface and outside is circular cone to use that sander will cut two pipe end of pipeline section to be polished into inside
The prefabricated conical surface in face cuts the outer diameter of prefabrication of tube section cylinder and the taper of axial length and the prefabricated conical surface and cone height and pipeline
The inner wall specification of pipe end sealer and obturator is consistent in connector, finally in the end of cutting prefabrication of tube section cylinder
Vehicle chamfering, in order to the docking of pipe jointer and cutting each pipe end of pipeline section.
Cutting pipeline section measures and pre-pair operation is used for measuring the relative position of cutting pipeline section and completes cutting pipeline section pipe end
Preliminary centering, flow is, Accurate Determining cuts the relative position of prefabrication of tube section cylinder and the prefabricated conical surface, including dimensional orientation
Offset distance between angle and two pipe end axis, and formulate corresponding lifting operation scheme according to subaqueous survey parameter；Then, foundation
The two pipe end offset distance parameter of cutting pipeline section measured cuts the outside advance expenditure water of the prefabrication of tube section conical surface in seabed mud face respectively
Clod, to turn down the offset distance of cutting two pipe end of pipeline section, cement block is placed in such a way that layering is staggeredly superimposed, and every layer
Block number from top to bottom successively increases, and the upper surface of top cement block is prefabricated with column-shaped trench, and the section of column-shaped trench is in circular arch
Shape, and the center of circle of column-shaped trench circular arch tee section is located on the axis of cutting pipeline section pipe end.
The lifting of air bag balance and centering operation are filled a whole set of submarine pipeline reparation by the balanced action of air bag and balance pipe
The centering of pipe jointer and corresponding pipe end is set between lifting extremely cutting two pipe end of pipeline section and completes, flow is to pass through air bag
It is filled with gas into balance pipe, is then filled with the gas of identical weight and pressure respectively into two air bags, according to the water measured
Incision pipe cutting section relative position parameter transfers a whole set of submarine pipeline prosthetic device using the loop wheel machine on workboat by lifting rope, and
It is lifted to the position between cutting two pipe end of pipeline section by the balanced action of air bag and balance pipe；Two pipe end of pipeline section is cut without offset
When, by the balanced action of air bag and balance pipe by the inner wall of pipe end sealer in pipe jointer slowly adjust to respective side
The prefabricated anchor ring for cutting pipeline section overlaps；It, will by the balanced action of air bag and balance pipe when cutting two pipe end of pipeline section in the presence of offset
The inner wall of pipe end sealer is slowly adjusted to the prefabricated anchor ring for cutting pipeline section at lower position and is overlapped in pipe jointer, is completed
Lifting and centering operation.
Air bag balance butt-joint operation complete pipe jointer tuningout operation and its with cutting two pipe end of pipeline section it is underwater right
It connects, flow is that a whole set of submarine pipeline prosthetic device is stable at cutting pipeline section two by the balanced action of air bag and balance pipe
Position between pipe end, when cutting two pipe end of pipeline section without offset, by the drive of hydraulic propelling system offer in pipe jointer
Power, the end sealing device, obturator of the left and right sides and sliding sealer are axially promoted along slide mass together in pipe jointer,
The prefabricated conical surface for being pushed into the male cone (strobilus masculinus) and cutting pipeline section of end sealing device inner wall coincides.And it cuts two pipe end of pipeline section and there is offset
When, start each hydraulic cylinder of lower position cutting pipeline section side hydraulic propelling system, the pipe end of pipe jointer respective side first
Sealer, obturator and sliding sealer are axially promoted along slide mass, are pushed into the male cone (strobilus masculinus) of end sealing device inner wall and compared with low level
The prefabricated conical surface for setting cutting pipeline section coincides；Then, the gas bleeder valve that air bag is opened using underwater robot, is slowly scaled
The amount of releasing of gas in two gas tanks, and keep the air leakage amount of lower position cutting pipeline section side air bag more than higher position cutting pipe
Thus the air leakage amount of section side air bag is gradually lifted submarine pipeline reparation to ensure that pipe jointer is in horizontality always
The cutting pipeline section of device and lower position, until the inner wall and the lateral incision pipe cutting of higher position cutting pipeline section side end sealing device
Until the prefabricated anchor ring of section overlaps；Then, it closes the gas bleeder valve of air bag and starts higher position cutting pipeline section side hydraulic drive
Each hydraulic cylinder of system, the end sealing device, obturator and sliding sealer of respective side are along slide mass axial direction in pipe jointer
It promotes, the prefabricated conical surface for being pushed into the male cone (strobilus masculinus) and higher position cutting pipeline section of end sealing device inner wall coincides；Finally, using hanging
Machine is slowly transferred in submarine pipeline prosthetic device and cutting pipeline section to the column-shaped trench of seabed mud face top cement block.
Prosthetic device dismounting operation is used for completing the dismounting of submarine pipeline prosthetic device and assists recycling by balance pipe,
Flow is, using underwater robot open air bag gas bleeder valve and two air bags of releasing out in remaining all gas, then open
Tapping valve will be respectively filled with seawater in two air bags, be then shut off gas bleeder valve and tapping valve；Followed by stubborn using underwater robot
Each pipe end stud for opening pipe jointer top disassembles the fixture of the left and right sides from pipe jointer respectively, relies on
Submarine pipeline prosthetic device after dismounting is simultaneously recycled on the workboat of sea using the hook of loop wheel machine load by the balanced action of balance pipe；
Finally, hydraulic propelling system in pipe jointer is unloaded, using underwater robot by each hydraulic cylinder of hydraulic propelling system from pipe
It disassembles on road connector, and is recycled on the workboat of sea using loop wheel machine.
Pipeline is fixedly connected with operation and passes through being fixedly connected between pipe jointer completion cutting two pipe end of pipeline section, flow
To screw each pipe end stud of end sealing device using underwater robot, forming quoit sealing and metal loop seals, complete pipe
Being fixedly connected between road connector and cutting two pipe end of pipeline section；Then each sliding of sliding sealer is screwed using underwater robot
Stud forms quoit sealing and metal loop seals, being fixedly connected between completion each component of pipe jointer.
Institute of the invention is attainable to be had the technical effect that, the submarine pipeline prosthetic device is according to double bolloon and the symmetrical cloth of double hoist cables
It is placed in the construction of balance pipe both sides and the hydraulic propelling system of pipe jointer, implements submarine pipeline cutting, prefabricated and pre-pair
And underwater air bag balance centering, dock with a whole set of work flow that is fixedly connected, realize that subsea production system Submarine Pipeline is revealed
Damage the reparation of pipeline section；Air bag uses vertical heavy wall tank body, for storing gas and assisting the lifting of completion air bag balance, to neutralization pair
Connect operation；Balance pipe uses horizontal heavy wall tube body, for store gas and together with air bag in balance lifting and butt-joint operation it is extra large
The oscillation load that upper loop wheel machine is transmitted through lifting rope, and balance pipe provides buoyancy to reduce loop wheel machine in prosthetic device removal process
Hook carries；Hoist cable is located at the lower part of balance pipe, realizes coupling between air bag and balance pipe and pipe jointer, and lifting rope is located at balance
The top of pipe, for completing the lifting operation of a whole set of prosthetic device.
Description of the drawings
The present invention will be further described below with reference to the drawings, but the invention is not limited in following embodiments.
Fig. 1 is the typical structure schematic diagram that submarine pipeline prosthetic device is balanced according to underwater air bag proposed by the invention.
Fig. 2 is the structure diagram of air bag, lifting rope and balance pipe in underwater air bag balance submarine pipeline prosthetic device.
Fig. 3 is A-A sectional views of Fig. 2.
Fig. 4 is the structure diagram of hoist cable, fixture and pipe jointer in underwater air bag balance submarine pipeline prosthetic device.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the pipe cutting of underwater air bag balance submarine pipeline prosthetic device and prefabricated work flow schematic diagram.
Fig. 7 is that the cutting pipeline section of underwater air bag balance submarine pipeline prosthetic device measures and pre-pair work flow schematic diagram.
Fig. 8 is two pipe end of cutting pipeline section of underwater air bag balance submarine pipeline prosthetic device without air bag balance lifting when deviating
Butt-joint operation general flow chart is balanced with centering operation and air bag.
Fig. 9 is air bag balance crane when two pipe end of cutting pipeline section of underwater air bag balance submarine pipeline prosthetic device has offset
Dress and centering operation and air bag balance butt-joint operation general flow chart.
Figure 10 is the prosthetic device dismounting operation general flow chart of underwater air bag balance submarine pipeline prosthetic device.
Figure 11 is that the pipeline of underwater air bag balance submarine pipeline prosthetic device is fixedly connected with work flow schematic diagram.
1- air bags in figure, 2- lifting ropes, 3- balance pipes, 4- hoist cables, 5- fixtures, 6- pipe jointers, 7- cutting pipes
Section, 8- gas bleeder valves, 9- gas tanks, 10- breather valves, 11- tapping valves, 12- clamp stud, 13- hexagonal metallic rings, 14-
Lower flap seat, axis pin in 15-, 16- base tubes, the upper flap seats of 17-, 18- upper pins, 19- connectors, 20- connecting cylinders, 21- connect
Rope, 22- lower bearing pins, 23- decks, 24- chucks, 25- pipe end studs, 26- end sealing devices, 27- obturators, 28- liquid
Propulsion system, 29- is pressed to slide sealer, 30- slide masses, 31- ropes, 32- breakage pipeline sections, 33- cement blocks.
Specific implementation mode
In Fig. 1, underwater air bag balance submarine pipeline prosthetic device mainly by air bag 1, lifting rope 2, balance pipe 3, hoist cable 4,
Fixture 5 and pipe jointer 6 form, and submarine pipeline restorative procedure implements pipe cutting and pre- manufacturing, cutting pipeline section 7 successively
Measure and pre-pair operation, air bag 1 balance lifting and centering operation, air bag 1 balance butt-joint operation, prosthetic device dismounting operation and
Pipeline is fixedly connected with the entire work flow of operation, finally realizes quick reparation when submarine pipeline serious damage.
In Fig. 1, before submarine pipeline prosthetic device assembling, 6 main element of air bag 1, balance pipe 3 and pipe jointer
Outer surface carries out spray painting processing respectively, prevents seawater corrosion.When the submarine pipeline prosthetic device assembles, air bag 1 is passed through first
Breather valve is connected on balance pipe 3, and hoist cable 4 is connected to by middle axis pin on balance pipe 3；Then, by fixture 5 by lower bearing pin with
Hoist cable 4 is coupled, and air bag 1, balance pipe 3, hoist cable 4 and fixture 5 are connected to pipe jointer 6 together by pipe end stud
On；Finally, lifting rope 2 is coupled by upper pin with balance pipe 3.
In Fig. 1, when which debugs, end sealing device, obturator and the sliding of pipe jointer 6
Sealer should flexibly slide and fluent along slide mass, and keep the cleaning of 3 inner wall of air bag 1 and balance pipe；Meanwhile checking balance
Each becket and quoit of pipe 3 and pipe jointer 6 have it is not damaged, check air bag 1 and 3 each valve of balance pipe switch whether
Correctly, whether check at each axis pin and thread connection securely and has non-corroding.
In Fig. 1, which has 5 using double bolloon 1, double lifting ropes 2, double hoist cables 4 and double card, and right
Claim the both sides for being arranged in balance pipe 3, completing a whole set of submarine pipeline prosthetic device by the balanced action of air bag 1 and balance pipe 3 exists
It cuts the lifting and centering between 7 liang of pipe ends of pipeline section and realizes the tuningout operation of pipe jointer 6 and its managed with 7 liang of pipeline section is cut
The underwater mating at end.
In figure 2 and figure 3, the chamber volume of two gas tanks 9 completes the lifting of the balance of air bag 1, centering according to assistance in air bag 1
It is designed with the sea situation in marine site where butt-joint operation and required maximum floating carry, the tube chamber volume of balance pipe 3 is according to lifting
With required buoyancy to be offered in the sea situation in marine site where butt-joint operation, the oscillation load of loop wheel machine and prosthetic device removal process
Etc. factors carry out type selecting, and the axial length of balance pipe 3 then keeps one with the axial length of pipe jointer 6 and damaged pipeline section
It causes, the specification of lifting rope 2 is according to the sea situation and promotion prosthetic device in marine site where lifting operation and 7 pipe end institute of cutting pipeline section
The max. hook load needed is designed.
In figure 2 and figure 3, the base tube 16 in balance pipe 3 by opening gas bleeder valve 8 and ventilation on 9 tank skin of gas tank successively
Valve 10 is inflated, and base tube 16 needs to close breather valve 10 after inflating, and then continuing as gas tank 9 by gas bleeder valve 8 carries out
Inflation, tolerance and air pressure after gas tank 9 is inflated in two gas tanks 9 are equal, to ensure the balanced action of air bag 1, air bag 1
In there are when sundries or hydrops, discharged by opening tapping valve 11.Hexagonal metallic ring 13 in balance pipe 3 is according to clamping
The clamping force that stud 12 is applied realizes the sealing of 16 liang of pipe ends of base tube, base tube 16 by lower flap seat 14 on its outer ring surface with
Cooperation between middle axis pin 15 and under connect cooperation between hoist cable 4 and upper flap seat 17 and upper pin 18 and first line of a couplet lifting rope 2.
In figures 4 and 5, in hoist cable 4 splicing 21 specification according to marine site where lifting operation sea situation and carry
It rises prosthetic device and the cutting required max. hook load of 7 pipe end of pipeline section is designed, and the length of splicing 21 then connects according to pipeline
It connects the maximum displacement that device 6 axially promotes to be adjusted, specification and the splicing 21 of connector 19 and connecting cylinder 20 are consistent, pipe
The intensity of end stud 25 needs to consider that hoist cable 4 transmits max. hook load and is formed by shear stress situation, and the inner wall of pipe jointer 6 is straight
Diameter is adjusted according to the caliber of cutting pipeline section 7.
In figures 4 and 5, hoist cable 4 is cut with scissors by cooperation between connector 19 and lower bearing pin 22 and deck 23 with fixture 5
It connects, while hoist cable 4 and fixture 5 are linked together by cooperation between chuck 24 and pipe end stud 25 with pipe jointer 6, pipeline
The driving force that connector 6 is provided by hydraulic propelling system 28 is by end sealing device 26, obturator 27 and slides 29 edge of sealer
Slide mass 30 is axial to be promoted, to the butt-joint operation completed pipe jointer 6 with cut pipeline section 7.
In figure 6, in pipe cutting and prefabricated work flow, implement pipe cutting operation first with imderwater cutting machine,
First cut a side of damaged pipeline section 32, notch stops after along the circumferential direction reaching 3/4ths or so perimeter section, then
Another side of damaged pipeline section 32 is cut again, and notch along the circumferential direction equally reaches 3/4ths or so perimeter Duan Houting
Only, finally the two side ends unified implementation of damaged pipeline section 32 is cut off, and by loop wheel machine and rope 31 to the damaged pipeline section after cutting
32 implement lifting, the sea situation in marine site where the specification foundation lifting operation of rope 31 and the weight for cutting down damaged pipeline section 32
Amount and its caliber are chosen.Then, implement pipe prefabrication operation using underwater sander, in two pipe ends point of cutting pipeline section 7
Prefabricated anchor ring is not polished, and the prefabricated anchor ring polished includes that axial length is h1Prefabricated cylinder and bore a height of h2Prefabricated cone
Face, in addition h1And h2Actual value according to pipe jointer 6 27 inner wall of end sealing device 26 and obturator axial length carry out
Adjustment.
In the figure 7, cutting pipeline section is measured in pre-pair work flow, implements cutting pipe first with subaqueous survey instrument
Section 7 measures operation, determines the various parameter values of relative position between cutting 7 liang of pipe ends of pipeline section, including inclined between two pipe end axis
Move distance, delta e1.Then, implement to cut 7 pre-pair operation of pipeline section by the way of advance expenditure cement block 33, in 7 liang of pipes of cutting pipeline section
Staggeredly cement block 33 is placed in superposition for layering respectively on the seabed mud face at end, to will cut the offset distances of 7 liang of pipe ends of pipeline section by
Δe1It turns down to Δ e2, Δ e2It need to control in the lifting of the balance of air bag 1, pipe jointer 6 is maximum allowable in and in butt-joint operation
Within the scope of offset distance, the cement block 33 of cutting 7 liang of pipe ends of pipeline section stacks the number of plies according to offset distance Δ e1It is adjusted.
In fig. 8, in the lifting of air bag balance and centering work flow when cutting two pipe end of pipeline section is without offset, construction is utilized
Loop wheel machine and lifting rope 2 on ship are simultaneously assisted by underwater robot, and a whole set of submarine pipeline prosthetic device is lifted to cutting and is managed
Position between 7 liang of pipe ends of section, ensures the steady of pipe jointer 6 in entire hoisting process using air bag 1 and balance pipe 3
It is fixed.Then, by the balanced action of air bag 1 and balance pipe 3, pipe jointer 6 is kept to be in horizontal nonoscillating state always, directly
Until the axis of pipe jointer 6 is overlapped with the axis of cutting 7 liang of pipe ends of pipeline section.
In fig. 8, in air bag balance butt-joint operation flow when cutting two pipe end of pipeline section is without offset, start loop wheel machine first
Constant tension compensating mechanism, and the balanced action of air bag 1 and balance pipe 3 is combined, 6 stable suspension of pipe jointer is in cutting pipeline section 7
Position between two pipe ends；Then, start hydraulic propelling system 28, and fuel feeding is carried out to each hydraulic cylinder of left and right ends, push
The end sealing device 26 of the left and right sides of pipe jointer 6, obturator 27 and sliding sealer 29 axial are pushed away along slide mass 30 is synchronous
Into, after the male cone (strobilus masculinus) of 26 inner wall of end sealing device is overlapped with the prefabricated conical surface for cutting 7 liang of pipe ends of pipeline section, closing hydraulic drive system
System 28, while each hydraulic cylinder fuel cut-off.
In fig.9, when cutting two pipe end of pipeline section has offset in the lifting of air bag balance and centering work flow, construction is utilized
Loop wheel machine and lifting rope 2 on ship are simultaneously assisted by underwater robot, and a whole set of submarine pipeline prosthetic device is lifted to cutting and is managed
Position after 7 pre-pairs of section between two pipe ends ensures that pipeline connects in entire hoisting process using air bag 1 with balance pipe 3
The stabilization of device 6.Then, by the balanced action of air bag 1 and balance pipe 3, pipe jointer 6 is kept to be in horizontal non-oscillatory always
State, until the axis of pipe jointer 6 is overlapped with the axis for cutting 7 pipe end of pipeline section at lower position.
In fig.9, when cutting two pipe end of pipeline section has offset in air bag balance butt-joint operation flow, start loop wheel machine first
Constant tension compensating mechanism, and the balanced action of air bag 1 and balance pipe 3 is combined, 6 stable suspension of pipe jointer is in cutting pipeline section 7
Position between two pipe ends；Then, start the hydraulic propelling system 28 of 7 side of lower position cutting pipeline section, and to each of the side
Hydraulic cylinder carries out fuel feeding, and the male cone (strobilus masculinus) of 26 inner wall of side pipe end sealer is overlapped with the prefabricated conical surface of lower position cutting pipeline section 7
Afterwards, hydraulic propelling system 28, while each hydraulic cylinder fuel cut-off are closed；Then, it is released in two gas tanks 9 using underwater robot
Gas, and by the balanced action of air bag 1 and balance pipe 3 and its buoyancy, pipe jointer 6 and lower position are cut into pipeline section 7
It is horizontal together to promote Δ e2Distance and achieve the purpose that tuningout, the axis of pipe jointer 6 and higher position cutting at this time is managed
The axis of 7 pipe ends of section overlaps, and the amount of releasing of gas and ratio of releasing are cut according to pipe jointer 6 and lower position in two air bags 1
Stressing conditions in 7 lifting process of pipe cutting section are adjusted；Finally, start the hydraulic drive of higher position 7 side of cutting pipeline section
System 28, and fuel feeding is carried out to each hydraulic cylinder of the side, male cone (strobilus masculinus) and the higher position of 26 inner wall of side pipe end sealer are cut
After the prefabricated conical surface of pipeline section 7 overlaps, hydraulic propelling system 28, while each hydraulic cylinder fuel cut-off are closed, loop wheel machine is then shut off
Constant tension compensating mechanism simultaneously transfers submarine pipeline prosthetic device and cutting pipeline section 7.
In Fig. 10, in prosthetic device dismounting operation flow, air bag 1 is implemented to lose heart first with underwater robot and is made
While the gas bleeder valve 8 of industry, opening side air bag 1 is slowly lost heart, the gas bleeder valve 8 for opening other side air bag 1 is also delayed
It is slow to lose heart, so as not to because air bag 1 lose heart it is too fast due to larger impact force is generated to pipe jointer 6 and cutting pipeline section 7；Then, sharp
Water-filling operation is implemented to air bag 1 with underwater robot, the tapping valve 11 for opening two air bags 1 successively forms unicom chamber；Then, sharp
Dismounting operation is implemented to fixture 5 with underwater robot, unscrews 25 outermost nut of each pipe end stud, unloads pipeline connection successively
The chuck 24 at 6 both ends of device；Finally, dismounting operation is implemented to hydraulic propelling system 28 using underwater robot, unscrews each turret head
Screw simultaneously extracts each axis pin, unloads all hydraulic cylinder of the left and right sides, the submarine pipeline prosthetic device after dismounting and liquid successively
Pressure propulsion system 28 is recycled to by loop wheel machine on the workboat of sea.
In fig. 11, pipeline is fixedly connected in work flow, and each pipe of end sealing device 26 is screwed using underwater robot
Stud 25 is held, end sealing device 26 and the axial deformation total amount of 27 each quoit of obturator and becket reach Δ l1Afterwards, successively
Quoit sealing and metal loop seals are formed, being fixedly connected between pipe jointer 6 and cutting 7 liang of pipe ends of pipeline section is thus completed,
The maximum screw-down torque that underwater robot applies each pipe end stud 25 generates maximum distortion according to each quoit and becket
The resultant force of required clamping force and thrust is designed.Then, each cunning of sliding sealer 29 is screwed using underwater robot
Stud is moved, the axial deformation total amount of the quoit and each becket of its end of 27 inside of obturator reaches Δ l2Afterwards, shape successively
At quoit sealing and metal loop seals, thus complete 6 each component of pipe jointer between being fixedly connected, underwater robot is to each
The maximum screw-down torque that is applied of sliding stud according to quoit and each becket generate the required clamping force of maximum distortion and
The resultant force of thrust is designed.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, every equivalents carried out based on the technical solution of the present invention and improvement should not be excluded the present invention's
Except protection domain.
Claims (6)
1. a kind of underwater air bag balances submarine pipeline prosthetic device, the submarine pipeline prosthetic device mainly by air bag, balance pipe, hang
Rope, hoist cable, fixture and pipe jointer composition, and according to double bolloon and double hoist cables be symmetrically arranged in balance pipe both sides construction and
The hydraulic propelling system of pipe jointer realizes quick reparation when submarine pipeline serious damage, it is characterised in that：
The submarine pipeline prosthetic device global design constructs for split type holohedral symmetry, and wherein air bag, lifting rope, hoist cable and fixture are adopted
With double split formula structure, and balance pipe and pipe jointer then use symmetrical single pipe structure；
One air bag；The air bag is constructed using vertical heavy wall tank body, for storing gas and assisting completion air bag balance to lift, right
Butt-joint operation is neutralized, gas tank uses symmetric double end enclosure structure, and upper cover and low head are all made of semiellipse sphere and are arranged symmetrically
In the both sides of tank body；Tank body cavity wall lower part is machined with two leakproofness pipe thread holes up and down, and breather valve is respectively configured, and realizes gas
Capsule homostasis pipe is linked together；Gas bleeder valve is arranged in the central part of gas tank upper cover, controls the amount of releasing of tank body chamber indoor gas；
One balance pipe；The balance pipe uses horizontal heavy wall structure of tube body, for storing gas and balancing together with air bag lifting
With the oscillation load that marine loop wheel machine is transmitted through lifting rope in butt-joint operation, and balance pipe provides buoyancy and is repairing dress to reduce loop wheel machine
The hook put back into during receiving carries；The axis of base tube keeps vertical with the axis of two air bags and in same plane, base tube two
The end flange of side and the annular groove of cecum flange are arranged symmetrically and configure hexagonal metallic ring, six sides in the ring cavity that is constituted
The cross section of shape becket is in Long Hexagon；Upper flap seat and lower flap seat are arranged symmetrically successively along the outer ring surface of base tube, are hung oneself simultaneously
Seat is respectively positioned on the inside of lower flap seat, and upper flap seat and lower flap seat are divided into two groups；
One lifting rope and hoist cable；The axis of the axis and balance pipe of the lifting rope and hoist cable is in same plane, lifting rope and is hung
The structure of rope is identical and is made of connector, connecting cylinder and splicing, and two lifting ropes of left and right are provided with connector, a connecting cylinder and connect
Rope, and two hoist cables of left and right configure two connectors and connecting cylinder and a piece-root grafting rope, and two connectors and connecting cylinder are arranged symmetrically successively
It in the both sides of hoist cable splicing and holds together, connector top uses the cylinder that semicylinder and tetragonal body are combined, connection
Cylinder uses long cylinder, constitutes annular slot at the intermediate anchor ring of inner wall and the variable cross-section of lower part anchor ring and positions the rope of splicing
End；
One fixture；The fixture is completed hoist cable and coupling between pipe jointer, and chuck uses semi-circular ring flange, deck to be located at
The surface of chuck, each fixture only contain one group of deck, each divide the steel plate that deck is all made of disc and rectangle is combined.
2. underwater air bag according to claim 1 balances submarine pipeline prosthetic device, it is characterised in that：The underwater air bag
Air bag, lifting rope, hoist cable and the fixture for balancing submarine pipeline prosthetic device contain two structures in left and right and the complete phase of specification
Same monomer, and the monomer of its left and right two is symmetrically arranged in the both sides of balance pipe and pipe jointer.
3. underwater air bag according to claim 1 balances submarine pipeline prosthetic device, it is characterised in that：The gas of the air bag
Tank is made of upper cover, tank body and low head, and tank body cavity wall lower part can control air inflow and the exhaust of air bag by breather valve
Amount is inflated by air bag for balance pipe after full communication between the higher and lower levels valve is opened, and after full communication between the higher and lower levels valve is closed, is continued by compressor
For airbag aeration, the air pressure after inflation in two air bags is equal；
The gas bleeder valve of the air bag completes the tuningout of pipe jointer in air bag balance butt-joint operation, while being torn open as prosthetic device
The channel of seawater filling air bag in industry is pretended, and tapping valve is arranged in the central part of gas tank low head.
4. underwater air bag according to claim 1 balances submarine pipeline prosthetic device, it is characterised in that：The balance is effective
To couple lifting rope and hoist cable；
The both sides of the base tube are respectively arranged end flange and cecum flange, and the end face outside of end flange and cecum flange
Be machined with annular groove on inner side end, the cross section of annular groove is in isosceles trapezoid, the shape in each isosceles trapezoid section and
Specification all same；
The center line of the long tee section of the hexagonal metallic ring is parallel with the axis of balance pipe, the end flange of base tube both sides
So that hexagonal metallic ring is deformed by the clamping force that clamping stud is applied with cecum flange and forms metal loop seals；
The upper flap seat and lower flap seat are located at the upper and lower part of base tube, and every group of flap seat in upper flap seat and lower flap seat contains
There are two monomer be divided to flap seat and two points of flap seats are placed in parallel, each divide flap seat to be all made of what semicircle and isosceles trapezoid was combined
Steel plate.
5. underwater air bag according to claim 1 balances submarine pipeline prosthetic device, it is characterised in that：The lifting rope is located at
The top of balance pipe, and hoist cable is located at the lower part of balance pipe, for realizing coupling between air bag and balance pipe and pipe jointer；
Lifting rope is identical as the specification of the connector of hoist cable and connecting cylinder, uses and is hinged between the connector and upper flap seat of two lifting ropes of left and right, and
Its splicing is linked together with the loop wheel machine on workboat, is used and is hinged between two hoist cable upper connections of left and right and lower flap seat, and hoist cable
Lower connector is then using hinged between deck；
The section of the connector top tetragonal body of the lifting rope and hoist cable is isosceles trapezoid, the two sides in isosceles trapezoid section respectively with
The circular cross-section of connector top semicylinder is tangent, and the left and right sides end face of connector top cylinder is mutually parallel, and its two side ends
The spacing in face is respectively less than the spacing of two points of flap seats and two points of decks；Connector lower part uses ladder rotating shaft, and the upper end passes through unloading
Slot is connected with connector top cylinder, and its lower end is then coupled by screw thread with connecting cylinder；
The connecting cylinder inner wall of the lifting rope and hoist cable uses ladder surface of revolution structure, while its splicing is from the reducing of connecting cylinder end
It is drawn in cone.
6. underwater air bag according to claim 1 balances submarine pipeline prosthetic device, it is characterised in that：The fixture includes
Chuck and deck, the outer diameter of chuck in pipe jointer on pipe end sealer outer ring surface circular conical surface small end disc diameter phase
Deng chuck is coupled by pipe end stud with pipe jointer；
One group of deck of the fixture contain there are two monomer be divided to deck and two points of decks are placed in parallel, each divide the disk of deck
Shape and rectangular steel plates junction carry out transition using arc surface, and the thickness for dividing deck rectangular steel plates is equal with the thickness of chuck, point
The opening diameter at deck disc steel plate center divides the trepanning at the semi-circular sheet steel center of flap seat straight with upper flap seat and lower flap seat
Diameter is equal.
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| CN201610430050.2A CN105909865B (en) | 2016-06-15 | 2016-06-15 | Underwater air bag balance submarine pipeline repairing device |
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| CN201610430050.2A CN105909865B (en) | 2016-06-15 | 2016-06-15 | Underwater air bag balance submarine pipeline repairing device |
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