CN104989875A - Submarine pipeline flange underwater abutting joint installation method - Google Patents
Submarine pipeline flange underwater abutting joint installation method Download PDFInfo
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- CN104989875A CN104989875A CN201510258022.2A CN201510258022A CN104989875A CN 104989875 A CN104989875 A CN 104989875A CN 201510258022 A CN201510258022 A CN 201510258022A CN 104989875 A CN104989875 A CN 104989875A
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- Prior art keywords
- submarine pipeline
- flange
- side arm
- pipeline
- diver
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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
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
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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
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
Abstract
The invention discloses a submarine pipeline flange underwater abutting joint installation method. A main flange connecting device is installed on the abutting joint end of a submarine pipeline A, an auxiliary flange connecting device is installed on the abutting joint end of a submarine pipeline B, the submarine pipeline A to be butted and the submarine pipeline B to be butted are connected together through the main flange connecting device and the auxiliary flange connecting device, the negative influence of the marine condition on underwater flange connection can be removed, the influence of ship shake on the movement of the submarine pipeline A and the submarine pipeline B can be removed, underwater adjusting steps of a diver can be reduced, the diver can adjust the positions of the submarine pipeline A and the submarine pipeline B conveniently, the underwater operation difficulty degree of the diver can be reduced, the underwater operation time of the diver can be shortened, the case that flanges get close to each other in an aligned manner can be ensured, the force applied to a gasket of each flange is consistent, uniform deformation is generated, and the leakproofness of the flanges can be improved. The flange connection quality can be improved, the operating time of the support ship can be saved, the construction period of the whole fleet can be shortened, the working efficiency is improved, and the installation cost is saved.
Description
Technical field
The present invention relates to pipeline docking calculation, particularly relate to the method for seabed all types of Pipeline Water lower flange abutting joint.
Background technique
In offshore oil engineering, need at a lot of pipeline of submarine laying, usually have steel pipe and the large class of flexible hose two.For transferring oil, gas, water, mixed medium or other flowing medium.Steel pipe generally includes: standpipe, expansion bends, horizontal pipe.Expansion bends connects standpipe and horizontal pipe, makes it to be connected, and tie point adopts Flange joint.Usually first install standpipe peace pipe, then by diver's subaqueous survey standpipe peace pipe flange angle, distance, on ship deck, then carry out expansion bends prefabricated, then underwater flange connects.Flexible hose generally includes: steel risers, flexible hose expansion bends, horizontal hose.Flexible hose expansion bends two ends tie point adopts Flange joint, prefabricated by carrying out deck after diver's subaqueous survey distance, then underwater flange connects.
Due to sea situation (flow velocity, water temperature, the depth of water, visibility etc.), diver (measuring equipment whether applications well itself, measuring steel wire degree of tightening up), expansion bends direction transferred by the angle (elbow is prefabricated in advance according to design document) of measuring equipment, prefabricated steel elbow, mud face, seabed obstacle, boats and ships loop wheel machine affects with many reasons such as design route error etc., the situation such as distance, dislocation, Eight characters mouth causing two panels flanged surface phase mutual to be connected certain being occurred, also easily there is excessively adjustment, collision equivalent risk in adjustment process under water in diver.
Common practices is, to sling the flange termination of extra large pipe by supporting the hoist on boats and ships, diver commander carries out underwater mating, and each only permission diver's operation under water (security regulations), by sea situation (flow velocity, water temperature, the depth of water, visibility etc.), boats and ships rise and fall and rock, pipe diameter size, the impacts such as expansion bends length, depend merely on diver's muscle power and be difficult to adjustment flange angle and pipeline distance, this work has become the key that extra large pipe connects, often there is abutted flange distance, diver repeatedly adjust also be difficult to close, two panels flange is near rear appearance dislocation and Eight characters mouth, affect bolton, flange gasket stress deformation is inconsistent, there is the problems such as joint seepage.Can say and complete to complete by diver profile, not only diver's underwater operation time is long, and support boats and ships also need coordinating operation near platform all the time, all larger to Divers, construction ship equipment, platform fixation means potential safety hazard.
Summary of the invention
The present invention provides a kind of submarine pipeline flange underwater mating installation method for solving in known technology the technical problem that exists.Adopt the method can reduce the underwater operation difficulty of diver, reduce the underwater operation time of diver, can guarantee that again underwater flange aligns close, make flange gasket unanimously stressed, improve the sealing of flange.Thus improve Flange joint quality, the offshore construction duration can be shortened again, save human and material resources and financial resources.
The technological scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of submarine pipeline flange underwater mating installation method, the butt end welded flange all of submarine pipeline A to be docked and submarine pipeline B, following steps are adopted to carry out the flange docking of submarine pipeline A and submarine pipeline B: one) diver commands the loop wheel machine supported on ship, main flange connecting apparatus is transferred the docking end to submarine pipeline A, described main flange connecting apparatus comprises a crossbeam I and perpendicular affixed vertical beam, wire rope and reel and drive motor thereof, described wirerope-winding is on described reel, described reel and drive motor thereof are vertically mounted on described vertical beam, described crossbeam I is formed with erection opening I, and the left side arm I and right side arm I that are slidably connected with it is respectively equipped with in two ends of described crossbeam I, pipeline clamping plate I are equipped with at the lower end inside of described left side arm I and described right side arm I, described left side arm I and described right side arm I are equipped with and drive oil cylinder I, described driving oil cylinder I is connected on described crossbeam I, be provided with left otic placode I in the outside of described left side arm I, described left otic placode I is provided with left side pilot hole I, be provided with auris dextra plate I in the outside of described right side arm I, described auris dextra plate I is connected with hook, after described main flange connecting apparatus is transferred and put in place, two described pipeline clamping plate I are placed in the both sides of submarine pipeline A by diver respectively, utilize the hydraulic station supported on ship, make described driving oil cylinder I drive described pipeline clamping plate I to be fixedly clamped on submarine pipeline A, two) diver commands and supports that secondary flange connecting apparatus is hung the docking end at submarine pipeline B by the loop wheel machine on ship, described secondary flange connecting apparatus comprises a crossbeam II, described crossbeam II is formed with erection opening II, and the left side arm II and right side arm II that are slidably connected with it is respectively equipped with in two ends of described crossbeam II, pipeline clamping plate II are equipped with at the lower end inside of described left side arm II and described right side arm II, described left side arm II and described right side arm II are equipped with and drive oil cylinder II, and described driving oil cylinder II is connected on described crossbeam II, be provided with left otic placode II in the outside of described left side arm II, described left otic placode II is provided with left side pilot hole II, be provided with auris dextra plate II in the outside of described right side arm II, described auris dextra plate II is provided with right side pilot hole, after described secondary flange connecting apparatus is transferred and put in place, two described pipeline clamping plate II are placed in the both sides of submarine pipeline B by diver respectively, utilize the hydraulic station supported on ship, make described driving oil cylinder II drive described pipeline clamping plate II to be fixedly clamped on submarine pipeline B, three) described wire rope is connected with described hook through after described left side pilot hole I, described left side pilot hole II and described right side pilot hole by diver successively, four) utilize and support the loop wheel machine on ship to sling described main flange connecting apparatus and described secondary flange connecting apparatus, make described submarine pipeline A and described submarine pipeline B mud face aweigh, utilize drive motor described in the power initiation on support ship, make described reel rotary tightening wire rope, pull described submarine pipeline A and described submarine pipeline B close to each other, and then make the two panels abutted flange on described submarine pipeline A and described submarine pipeline B close to each other at a distance of 20-30cm, cut off the power supply of described drive motor, five) diver commands and supports that described submarine pipeline A and described submarine pipeline B transfers to mud face, seabed by the loop wheel machine on ship, and adjust the circumferential relative position of the two panels abutted flange on submarine pipeline A and described submarine pipeline B, make their attachment hole position relative, mounting flange seal ring afterwards, then adopts bolt to be linked together by the two panels abutted flange on described submarine pipeline A and described submarine pipeline B, start described drive motor, make reel rotate release wire rope, then wire rope is taken off from described hook, adopt extension lever or hydraulic elongator to carry out reinforcing locking to bolt, complete seabed flange mating operation.
Described step 2): be connected with guide pipe in the outside of described crossbeam II, described guide pipe is between described left side arm II and described right side arm II; Described step 3): described wire rope is connected with described hook through after described left side pilot hole I, described left side pilot hole II, described guide pipe and described right side pilot hole by diver successively;
Described step one): the end of described wire rope is provided with wire line hitch; Described step 3): described wire rope is connected with described hook by described wire line hitch.
Described step one): described hook is provided with mousing-hook insurance.
Described step one): be respectively provided with a reinforced liner in the both sides of described vertical beam, described reinforced liner and described crossbeam I affixed.
The advantage that the present invention has and good effect are: utilize main flange connecting apparatus and secondary flange connecting apparatus to be linked together by submarine pipeline A to be docked and submarine pipeline B, can overcome the adverse effect that sea situation (flow velocity, water temperature, the depth of water, visibility etc.) connects underwater flange; Adopt main flange connecting apparatus and secondary flange connecting apparatus make submarine pipeline A to be docked and submarine pipeline B synchronizing moving close, boats and ships can be overcome and rock impact on submarine pipeline A and submarine pipeline B relative movement, simplify the step that diver adjusts under water simultaneously, diver is facilitated to carry out position adjustment to submarine pipeline A and submarine pipeline B, shorten diver's underwater operation time, reduce personnel risk, improve underwater operation efficiency; Ensure that aligning of underwater flange is close simultaneously, make flange gasket unanimously stressed, distortion evenly, improve flange seal, thus ensure that the quality of connection of flange, save again the activity duration supporting ship, shorten the overall fleet duration, increase work efficiency, save mounting cost; Be particularly useful for that the depth of water is deep, large diameter pipeline seabed Flange joint, diver is difficult to the situation of Correctional tube end position under water.
In sum, the present invention can reduce sea situation, the depth of water, diver profile, boats and ships rock, expansion bends transfers the factors such as angle impact, improve diver's underwater operation efficiency, decrease diver's underwater operation time, save manpower, material resources and financial resources, solve the difficult problem that underwater flange is installed.
Accompanying drawing explanation
Fig. 1 is application structural representation of the present invention;
Fig. 2 is the plan view after Fig. 1 omits loop wheel machine;
Fig. 3 is step one of the present invention) in the plan view of main flange connecting apparatus;
Fig. 4 is the worm's eye view of Fig. 3;
Fig. 5 is the left view of Fig. 3;
Fig. 6 is the right elevation of Fig. 3;
Fig. 7 is step 2 of the present invention) in the plan view of secondary flange connecting apparatus;
Fig. 8 is the worm's eye view of Fig. 7;
Fig. 9 is the left view of Fig. 7.
In figure: 1, main flange connecting apparatus; 1-1, crossbeam I; 1-2, vertical beam; 1-3, wire rope; 1-4, drive motor; 1-5, erection opening I; 1-6, left side arm I; 1-7, right side arm I; 1-8, pipeline clamping plate I; 1-9, driving oil cylinder I; 1-10, left otic placode I; 1-11, left side pilot hole I; 1-12, auris dextra plate I; 1-13, hook; 1-14, wire line hitch; 1-15, reinforced liner; 2, secondary flange connecting apparatus; 2-1, crossbeam II; 2-2, erection opening II; 2-3, left side arm II; 2-4, right side arm II; 2-5, pipeline clamping plate II; 2-6, driving oil cylinder II; 2-7, left otic placode II; 2-8, left side pilot hole II; 2-9, auris dextra plate II; 2-10, right side pilot hole; 2-11, guide pipe; 3-1, submarine pipeline A; 3-2, submarine pipeline B; 4, flange; 5, diver; 6, ship is supported; 7, loop wheel machine.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 ~ Fig. 9, a kind of submarine pipeline flange underwater mating installation method, submarine pipeline A3-1 to be docked and the butt end of submarine pipeline B3-2 welded flange 4 all, adopt following steps to carry out the flange docking of submarine pipeline A3-1 and submarine pipeline B3-2:
One) diver 5 commands the loop wheel machine 7 supported on ship 6, and main flange connecting apparatus 1 is transferred the docking end to submarine pipeline A3-1, described main flange connecting apparatus 1 comprises crossbeam I 1-1 and perpendicular affixed vertical beam 1-2, wire rope 1-3 and reel and drive motor 1-4 thereof, described wire rope 1-3 is wrapped on described reel, described reel and drive motor 1-4 thereof are vertically mounted on described vertical beam 1-2, described crossbeam I 1-1 is formed with erection opening I 1-5, and left side arm I 1-6 and right side arm I 1-7 that are slidably connected with it is respectively equipped with in two ends of described crossbeam I 1-1, pipeline clamping plate I 1-8 is equipped with at the lower end inside of described left side arm I 1-6 and described right side arm I 1-7, described left side arm I 1-6 and described right side arm I 1-7 is equipped with and drives oil cylinder I 1-9, described driving oil cylinder I 1-9 is connected on described crossbeam I 1-1, be provided with left otic placode I 1-10 in the outside of described left side arm I 1-6, described left otic placode I 1-10 is provided with left side pilot hole I 1-11, be provided with auris dextra plate I 1-12 in the outside of described right side arm I 1-7, described auris dextra plate I 1-12 is connected with hook 1-13, after main flange connecting apparatus 1 is transferred and put in place, two described pipeline clamping plate I 1-8 are placed in the both sides of submarine pipeline A3-1 by diver 5 respectively, utilize the hydraulic station supported on ship 6, make described driving oil cylinder I 1-9 drive described pipeline clamping plate I 1-8 to be fixedly clamped on submarine pipeline A3-1.
Two) diver 5 commands and supports that secondary flange connecting apparatus 2 is hung the docking end at submarine pipeline B3-2 by the loop wheel machine 7 on ship 6, described secondary flange connecting apparatus 2 comprises crossbeam II 2-1, described crossbeam II 2-1 is formed with erection opening II 2-2, and left side arm II 2-3 and right side arm II 2-4 that are slidably connected with it is respectively equipped with in two ends of described crossbeam II 2-1, pipeline clamping plate II 2-5 is equipped with at the lower end inside of described left side arm II 2-3 and described right side arm II 2-4, described left side arm II 2-3 and described right side arm II 2-4 is equipped with and drives oil cylinder II 2-6, described driving oil cylinder II 2-6 is connected on described crossbeam II 2-1, be provided with left otic placode II 2-7 in the outside of described left side arm II 2-3, described left otic placode II 2-7 is provided with left side pilot hole II 2-8, be provided with auris dextra plate II 2-9 in the outside of described right side arm II 2-4, described auris dextra plate II 2-9 is provided with right side pilot hole 2-10, after described secondary flange connecting apparatus 2 is transferred and put in place, two described pipeline clamping plate II 2-5 are placed in the both sides of submarine pipeline B3-2 by diver 5 respectively, utilize the hydraulic station supported on ship 6, make described driving oil cylinder II 2-6 drive described pipeline clamping plate II 2-5 to be fixedly clamped on submarine pipeline B3-2.
Three) described wire rope 1-3 is connected with the described 1-13 that links up with through after described left side pilot hole I 1-11, described left side pilot hole II 2-8 and described right side pilot hole 2-10 by diver 5 successively.
Four) utilize and support the loop wheel machine 7 on ship 6 to sling described main flange connecting apparatus 1 and described secondary flange connecting apparatus 2, make described submarine pipeline A3-1 and described submarine pipeline B3-2 mud face aweigh, utilize drive motor 1-4 described in the power initiation on support ship 6, make described reel rotary tightening wire rope 1-3, pull described submarine pipeline A3-1 and described submarine pipeline B3-2 close to each other, and then make the two panels abutted flange 4 on described submarine pipeline A3-1 and described submarine pipeline B3-2 close to each other at a distance of 20-30cm, cut off the power supply of described drive motor 1-4.
Five) diver 5 commands and supports that described submarine pipeline A3-1 and described submarine pipeline B3-2 transfers to mud face, seabed by the loop wheel machine 7 on ship 6, and adjust the circumferential relative position of the two panels abutted flange 4 on submarine pipeline A3-1 and described submarine pipeline B3-2, make their attachment hole position relative, mounting flange seal ring afterwards, then adopts bolt to be linked together by the two panels abutted flange 4 on described submarine pipeline A3-1 and described submarine pipeline B3-2; Start described drive motor 1-4, make reel rotate release wire rope 1-3, then wire rope 1-3 is taken off from described hook 1-13, and then adopt extension lever or hydraulic elongator etc. to carry out reinforcing locking to bolt, complete seabed flange mating operation.
In the present embodiment, in order to ensure that wire rope 1-3 does not scratch submarine pipeline B3-2, above-mentioned steps two): be connected with guide pipe 2-11 in the outside of described crossbeam II 2-1, described guide pipe 2-11 is between described left side arm II 2-3 and described right side arm II 2-4; Described step 3): described wire rope 1-3 is connected with the described 1-13 that links up with through after described left side pilot hole I 1-11, described left side pilot hole II 2-8, described guide pipe 2-11 and described right side pilot hole 2-10 by diver 5 successively.Conveniently connect, described step one): the end of described wire rope 1-3 is provided with wire line hitch 1-14; Described step 3): described wire rope 1-3 is connected with the described 1-13 that links up with by described wire line hitch 1-14.In order to construction safety, described step one): described hook 1-13 is provided with mousing-hook insurance.Firm in order to vertical beam 1-2, described step one): be respectively provided with a reinforced liner 1-15 in the both sides of described vertical beam 1-2, described reinforced liner 1-15 and described crossbeam I 1-1 is affixed.
The direction related to herein is all as the criterion with Fig. 2.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (5)
1. a submarine pipeline flange underwater mating installation method, the butt end welded flange all of submarine pipeline A to be docked and submarine pipeline B, is characterized in that, adopts following steps to carry out the flange docking of submarine pipeline A and submarine pipeline B:
One) diver commands the loop wheel machine supported on ship, main flange connecting apparatus is transferred the docking end to submarine pipeline A, described main flange connecting apparatus comprises a crossbeam I and perpendicular affixed vertical beam, wire rope and reel and drive motor thereof, described wirerope-winding is on described reel, described reel and drive motor thereof are vertically mounted on described vertical beam, described crossbeam I is formed with erection opening I, and the left side arm I and right side arm I that are slidably connected with it is respectively equipped with in two ends of described crossbeam I, pipeline clamping plate I are equipped with at the lower end inside of described left side arm I and described right side arm I, described left side arm I and described right side arm I are equipped with and drive oil cylinder I, described driving oil cylinder I is connected on described crossbeam I, be provided with left otic placode I in the outside of described left side arm I, described left otic placode I is provided with left side pilot hole I, be provided with auris dextra plate I in the outside of described right side arm I, described auris dextra plate I is connected with hook, after described main flange connecting apparatus is transferred and put in place, two described pipeline clamping plate I are placed in the both sides of submarine pipeline A by diver respectively, utilize the hydraulic station supported on ship, make described driving oil cylinder I drive described pipeline clamping plate I to be fixedly clamped on submarine pipeline A,
Two) diver commands and supports that secondary flange connecting apparatus is hung the docking end at submarine pipeline B by the loop wheel machine on ship, described secondary flange connecting apparatus comprises a crossbeam II, described crossbeam II is formed with erection opening II, and the left side arm II and right side arm II that are slidably connected with it is respectively equipped with in two ends of described crossbeam II, pipeline clamping plate II are equipped with at the lower end inside of described left side arm II and described right side arm II, described left side arm II and described right side arm II are equipped with and drive oil cylinder II, and described driving oil cylinder II is connected on described crossbeam II; Be provided with left otic placode II in the outside of described left side arm II, described left otic placode II is provided with left side pilot hole II; Be provided with auris dextra plate II in the outside of described right side arm II, described auris dextra plate II is provided with right side pilot hole; After described secondary flange connecting apparatus is transferred and put in place, two described pipeline clamping plate II are placed in the both sides of submarine pipeline B by diver respectively; Utilize the hydraulic station supported on ship, make described driving oil cylinder II drive described pipeline clamping plate II to be fixedly clamped on submarine pipeline B;
Three) described wire rope is connected with described hook through after described left side pilot hole I, described left side pilot hole II and described right side pilot hole by diver successively;
Four) utilize and support the loop wheel machine on ship to sling described main flange connecting apparatus and described secondary flange connecting apparatus, make described submarine pipeline A and described submarine pipeline B mud face aweigh, utilize drive motor described in the power initiation on support ship, make described reel rotary tightening wire rope, pull described submarine pipeline A and described submarine pipeline B close to each other, and then make the two panels abutted flange on described submarine pipeline A and described submarine pipeline B close to each other at a distance of 20-30cm, cut off the power supply of described drive motor;
Five) diver commands and supports that described submarine pipeline A and described submarine pipeline B transfers to mud face, seabed by the loop wheel machine on ship, and adjust the circumferential relative position of the two panels abutted flange on submarine pipeline A and described submarine pipeline B, make their attachment hole position relative, mounting flange seal ring afterwards, then adopts bolt to be linked together by the two panels abutted flange on described submarine pipeline A and described submarine pipeline B; Start described drive motor, make reel rotate release wire rope, then wire rope is taken off from described hook, adopt extension lever or hydraulic elongator to carry out reinforcing locking to bolt, complete seabed flange mating operation.
2. submarine pipeline flange underwater mating installation method according to claim 1, is characterized in that, described step 2): be connected with guide pipe in the outside of described crossbeam II, described guide pipe is between described left side arm II and described right side arm II; Described step 3): described wire rope is connected with described hook through after described left side pilot hole I, described left side pilot hole II, described guide pipe and described right side pilot hole by diver successively.
3. submarine pipeline flange underwater mating installation method according to claim 1, is characterized in that, described step one): the end of described wire rope is provided with wire line hitch; Described step 3): described wire rope is connected with described hook by described wire line hitch.
4. submarine pipeline flange underwater mating installation method according to claim 1, is characterized in that, described step one): described hook is provided with mousing-hook insurance.
5. submarine pipeline flange underwater mating installation method according to claim 1, is characterized in that, described step one): be respectively provided with a reinforced liner in the both sides of described vertical beam, described reinforced liner and described crossbeam I affixed.
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| CN201510258022.2A CN104989875A (en) | 2015-05-19 | 2015-05-19 | Submarine pipeline flange underwater abutting joint installation method |
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| CN201510258022.2A CN104989875A (en) | 2015-05-19 | 2015-05-19 | Submarine pipeline flange underwater abutting joint installation method |
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