CN116717631A - Submarine large-pipe-diameter pipeline installation device and construction process thereof - Google Patents
Submarine large-pipe-diameter pipeline installation device and construction process thereof Download PDFInfo
- Publication number
- CN116717631A CN116717631A CN202310943465.XA CN202310943465A CN116717631A CN 116717631 A CN116717631 A CN 116717631A CN 202310943465 A CN202310943465 A CN 202310943465A CN 116717631 A CN116717631 A CN 116717631A
- Authority
- CN
- China
- Prior art keywords
- pipeline body
- pipeline
- pipe
- submarine
- installation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 23
- 210000001331 nose Anatomy 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 10
- 210000003128 head Anatomy 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A submarine large-diameter pipeline installation device and a construction process thereof relate to the technical field of submarine large-diameter pipeline installation, in particular to a submarine large-diameter pipeline installation device with a pipe diameter larger than DN1200 and a construction process thereof. The anti-slip pipe shoe comprises a pipe body, wherein elliptical hole flanges are arranged at two ends of the pipe body, and anti-slip pipe shoes are arranged on the pipe body; the anti-slip pipe shoe comprises a waveform flat pipe shoe, an anti-rolling support and a fixed hoop, wherein double corrugated plates are symmetrically arranged on two sides of the waveform flat pipe shoe, and the waveform flat pipe shoe is provided with the anti-rolling support; the anti-rolling support is provided with a fixed hoop matched with the pipeline body. According to the invention, the pipeline body is quickly installed underwater by adopting the sections through the anti-slip pipe shoe, so that the pipeline body can adapt to complex sea conditions such as reciprocating flow, the leveling requirement on a submarine pipeline foundation bed is reduced, the large-diameter pipeline with DN more than 1200 is quickly installed, the cost is saved, the operation is simple, and the construction is convenient.
Description
Technical Field
The invention relates to the technical field of installation of submarine large-diameter pipelines, in particular to a submarine large-diameter pipeline installation device with a pipe diameter larger than DN1200 and a construction process thereof.
Background
At present, the installation of submarine ocean underwater oil and water pipelines adopts a professional pipe-laying ship installation, traction construction method or floating construction method, but the pipe-laying ship is high in construction price, so that the dispatching and use cost is high, and the method is not suitable for small-sized projects with short pipeline distance. Meanwhile, the flexibility of the metal pipeline is limited, and the ship type of the existing domestic pipe laying ship is only suitable for laying pipelines below DN1200 and is not suitable for large-diameter steel pipe laying construction with the pipeline diameter above DN 1200. Because the tidal current of the submarine pipeline installation area is a reciprocating flow, the fluctuation tidal current direction changes obviously, the submarine current situation is very complex, and the traction construction method is suitable for the working conditions of shallower water depth and better sea condition, has certain requirements on geological conditions, has high requirements on pipeline connection quality, and is easy to damage in the traction process. The floating towing pipe needs to have gentle slope shoreside to ensure the water entering of the pipeline, is suitable for the working condition with good sea condition, needs to temporarily plug the pipeline, and is relatively complicated to operate after sinking into the water bottom or the groove and removing the plugging plate. Therefore, there is a need to develop an installation device and a construction process thereof that can rapidly install large-diameter pipes having DN1200 or more under relatively complex sea conditions such as reflow.
Disclosure of Invention
The invention aims to provide a submarine large-diameter pipeline installation device and a construction process thereof, so as to achieve the purposes of adapting to complex sea conditions such as reciprocating flow, reducing leveling requirements on a submarine pipeline foundation bed, quickly installing large-diameter pipelines with DN more than 1200, saving cost, being simple to operate and being convenient to construct.
The invention provides a submarine large-pipe-diameter pipeline installation device, which comprises a pipeline body, wherein elliptical hole flanges are arranged at two ends of the pipeline body, and anti-slip pipe boots are arranged on the pipeline body; the anti-slip pipe shoe comprises a waveform flat pipe shoe, an anti-rolling support and a fixed hoop, wherein double corrugated plates are symmetrically arranged on two sides of the waveform flat pipe shoe, and the waveform flat pipe shoe is provided with the anti-rolling support; the anti-rolling support is provided with a fixed hoop matched with the pipeline body, and is positioned above the double corrugated plate.
Further, the anti-rolling support comprises a vertical rod and an inclined rod, wherein the upper ends of the vertical rod and the inclined rod are connected together through a cross rod, the vertical rod is arranged on the outer side of the double corrugated plate, the inclined rod is arranged on the inner side of the double corrugated plate, and the inclined rod is in contact connection with the pipeline body; the cross bar is provided with a fixed hoop.
Further, be provided with the bolt hole on the horizontal pole, the welding has the bolt on the fixed cuff, and fixed cuff passes through the bolt with the horizontal pole and can dismantle the connection.
Further, the dual corrugated board includes the first buckled plate and the second buckled plate that two symmetries set up, is connected by the third buckled plate between first buckled plate and the second buckled plate, and the upper end of first buckled plate is connected with the inboard contact of diagonal rod.
Further, a hanging nose is further arranged in the middle of the pipeline body, and the hanging nose is positioned between the two fixed hoops of the anti-slip pipe boot.
Further, the upper end of the elliptical hole flange plate is provided with a traction positioning nose, and the side edge of the elliptical hole flange plate is provided with a limiting bracket.
A submarine large-pipe-diameter pipeline installation construction process comprises the following steps:
step 1, processing a pipeline body on land, welding elliptical hole flanges at two ends of the pipeline body, and installing an anti-slip pipe shoe in the middle of the pipeline body;
step 2, transporting the pipeline body to a transportation installation position by a barge;
and 3, installing the pipeline body, namely hoisting the pipeline body to water, enabling the fixing bolts to pass through the elliptical hole flange plate, and connecting the multi-section pipeline body together to finish the installation of the submarine large-diameter pipeline.
In step 1, firstly, processing the pipeline in a production line mode in a factory, wherein the pipeline is made of steel metal, and the length of a single finished pipeline is 12m; then, after the pipeline is transported to a processing site, 3 pipelines are welded into a pipeline body, the axes of the 3 pipelines are ensured to be coaxial and straight during welding, and after the welded junction is qualified through ultrasonic nondestructive inspection, anticorrosion paint repair is carried out; afterwards, the elliptical hole flange is processed and manufactured in advance in a factory, and is welded at two ends of the pipeline body by full-scale welding after being transported to a processing site; then, two hanging noses are symmetrically arranged along two sides of the gravity center of the pipeline body to serve as hanging points of the pipeline body, two traction positioning noses are arranged at the upper ends of flange elliptical hole flanges at two ends of the pipeline body to serve as positioning traction points, and the centers of all the hanging noses and the traction positioning noses are required to be on the same central line and welded with the axis of the pipeline body vertically so as to ensure that the hanging does not deviate; and finally, after the manufacturing of the anti-slip pipe boots is finished, coating anti-corrosion paint, and installing two to a plurality of anti-slip pipe boots on each pipe body, wherein the anti-slip pipe boots are uniformly distributed.
In step 2, after the processing of each section of pipeline body in the land prefabricated field is completed, the pipeline body is hoisted to the front edge of the lightering wharf by using a crawler crane for loading, the pipeline bodies are symmetrically and uniformly distributed in a barge cabin, reinforcement and protection measures are carried out, and after the tidal water and ocean current conditions of the installation field meet the installation requirements, the pipeline body is transported to the installation position by the barge.
Further, in the step 3, first, the ship is positioned: the ship is positioned and constructed by a GPS (global positioning system) to move a ship position to a mounting point by a ship anchor, so that the ship is parallel to the axis of a mounting pipeline, and the outer side of the ship is close to the mounting point, so that the floating crane is convenient to mount a pipeline body; then, hoisting preparation: each section of pipeline body is installed in a two-point hanging mode, a shackle and a steel wire rope which meet the standards are selected according to the weight of the pipeline body, a pipeline body hanging nose and one end of the steel wire rope are connected through the shackle, the other section of the steel wire rope is hung on a floating hook head, and the floating hook slowly lifts until the steel wire rope is stressed to be straightened; the traction positioning noses at the two ends are tied with a cable in advance and are used for positioning the sewer of the pipeline body; and then, positioning and installing the pipeline body: the floating crane lifts the hook to enable the pipeline body to gradually leave the deck, the hook head is slowly lowered after the large arm is moved to the mounting point to enable the pipeline body to slowly enter water, in the process, the positioning cables at the two ends of the pipeline are adjusted to enable the pipeline body to enter water in parallel to the ship board, after the pipeline body enters water to approach the top surface of the foundation bed with the leveling completed, a diver enters water to check the mounting position of the pipeline body, the floating crane is commanded to gradually adjust the position of the pipeline body through the limiting brackets at the two ends of the pipeline body, the anti-slip pipe shoe is slowly implanted, and the pipeline body is butted through the elliptical hole flange; finally, the pipe body is connected: after the elliptic hole flange plates are tightly butted, a diver passes through the elliptic screw holes on the elliptic hole flange plates to manually and preliminarily install and fasten the pipeline body, then one end of a wrench is used for fixing a nut, and the other end of the wrench is used for fastening the nut again, so that the nut is prevented from falling off in a double-nut mode, and the diver uniformly fastens all the fixing bolts according to the steps; after the installation of the pipeline body is completed, a buoy is installed at the tail end of the pipeline body to make a mark so as to facilitate the next installation and positioning.
The submarine large-pipe-diameter pipeline installation device and the construction process thereof provided by the invention have the following beneficial effects:
1. because there is the dark current under the water in the job site, be provided with anti-skidding piping boot on the pipeline body, anti-skidding piping boot can prevent that the pipeline body from receiving the influence of dark current to produce the displacement.
2. The anti-slip pipe boot comprises a wave-shaped flat pipe boot, an anti-rolling bracket and a fixed hoop, wherein the wave-shaped flat pipe boot can enlarge the contact surface between the bottom of the anti-slip pipe boot and a seabed foundation bed; the anti-rolling support and the fixing hoops can prevent the pipeline body from shaking in the corrugated flat pipe boot.
3. Two ends of the pipeline body are provided with elliptical hole flanges, and the fixing bolts penetrate through the elliptical hole flanges to connect the multi-section pipeline body together, so that the multi-section pipeline body can be installed underwater in sections.
4. The middle of the pipeline body is provided with the hanging nose, and the hanging nose is used as a hanging point of the pipeline body, so that the pipeline body can be quickly hoisted, transported and installed.
Therefore, the invention can quickly install the large-diameter pipeline on water through auxiliary devices such as the positioning device, the special pipe boot and the like, adopts the segmented underwater installation mode to have high flexibility, can adapt to complex sea condition conditions such as reciprocating flow and the like, reduces the leveling requirement on the foundation bed of the submarine pipeline, quickly installs the large-diameter pipeline with DN more than 1200, saves cost, and has simple operation and convenient construction.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and,
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the construction of the slip-resistant boot of the present invention;
FIG. 3 is a structural side view of the pipe body and anti-slip boot of the present invention;
FIG. 4 is a state of use diagram of the present invention;
reference numerals: 1. a pipe body; 2. an elliptical hole flange plate; 21. traction positioning nose; 22. a limit bracket; 3. anti-slip pipe boots; 31. wave-shaped flat pipe boots; 311. a dual-corrugated board; 312. a first corrugated plate; 313. a second corrugated plate; 314. a third corrugated plate; 32. an anti-rolling bracket; 321. a vertical rod; 322. a diagonal rod; 323. a cross bar; 33. fixing the ferrule; 4. hanging a nose; 5. and (5) hoisting the rope.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the submarine large-pipe-diameter pipeline installation device provided by the invention comprises a pipeline body 1, wherein elliptical hole flanges 2 are arranged at two ends of the pipeline body 1, and an anti-slip pipe shoe 3 is arranged on the pipeline body 1; the anti-slip pipe shoe 3 comprises a wave-shaped flat pipe shoe 31, an anti-rolling bracket 32 and a fixed hoop 33, wherein double corrugated plates 311 are symmetrically arranged on two sides of the wave-shaped flat pipe shoe 31, and the wave-shaped flat pipe shoe 31 is provided with the anti-rolling bracket 32; the anti-rolling support 32 is provided with a fixed hoop 33 matched with the pipeline body 1, and the anti-rolling support 32 is positioned above the double corrugated plate 311.
Example 1:
as shown in fig. 4, when the invention is used, firstly, the elliptical hole flange plates 2 are welded and installed at two ends of the large-diameter pipeline body 1 above DN1200 at the land installation site, two anti-slip pipe shoes 3 are installed in the middle of the pipeline body 1, the wave plate pipe shoes 31 are positioned at the bottom of the pipeline body 1, the anti-rolling support 32 is positioned at the side edge of the bottom of the pipeline body 1, and the fixed hoops 33 encircle the pipeline body 1. Then, the hoisting rope 5 is fixed on the pipeline body 1, and the crane ship lifts the pipeline body 1 off-shore and drives to the water area to be installed. Finally, after reaching the installation waters, the pipeline body 1 enters water, passes through the elliptical hole flange plate 2 by using the fixing bolts, connects the multi-section pipeline body 1 together, namely, can adapt to complex sea conditions such as reciprocating flow, and the like, and quickly installs the pipeline body 1 with the large pipe diameter more than DN1200 under water in a segmented way, thereby saving cost, being simple to operate and convenient to construct.
The anti-rolling support 32 comprises a vertical rod 321 and an inclined rod 322, wherein the upper ends of the vertical rod 321 and the inclined rod 322 are connected together by a cross rod 323, the vertical rod 321 is arranged on the outer side of the double corrugated board 311, the inclined rod 322 is arranged on the inner side of the double corrugated board 311, the inclined rod 322 is in contact connection with the pipeline body 1, and the anti-rolling support 32 is positioned above the double corrugated board 311; the crossbar 323 is provided with a securing cuff 33. By combining structural and mechanical design, the anti-rolling support 32 can fix the pipeline body 1 in the anti-sliding pipe shoe 3, so that the pipeline body 1 with the large pipe diameter more than DN1200 can be conveniently installed under water in a segmented manner, the cost is saved, the operation is simple, and the construction is convenient.
The cross bar 323 is provided with a bolt hole, the fixing hoop 33 is welded with a bolt, and the fixing hoop 33 is detachably connected with the cross bar 323 through the bolt. The fixed hoops 33 can be quickly installed on the cross bar 323 through bolts, namely, the pipeline body 1 is quickly installed in the anti-slip pipe shoe 3, so that the pipeline body 1 with the large pipe diameter more than DN1200 is conveniently and quickly installed under water in a segmented mode, the cost is saved, the operation is simple, and the construction is convenient.
The above-mentioned double corrugated plate 311 includes two symmetrically arranged first corrugated plates 312 and second corrugated plates 313, the first corrugated plates 312 and the second corrugated plates 313 are connected by a third corrugated plate 314, and the upper ends of the first corrugated plates 312 are connected in contact with the inner sides of the diagonal rods 322. And by combining structural and mechanical design, the pipeline body 1 is provided with enough fixing force and supporting force, so that the pipeline body 1 can be quickly installed.
A nose 4 is further disposed in the middle of the pipe body 1, and the nose 4 is located between two fixing cuffs 33 of the anti-slip pipe boot 3. The hoisting rope 5 is fixed on the hoisting nose 4, so that the pipeline body 1 is convenient to hoist and move, a large-diameter pipeline with DN more than 1200 is convenient to install rapidly under relatively complex sea conditions such as adaptation to reciprocating flow, cost is saved, operation is simple, and construction is convenient.
The upper end of the elliptical hole flange plate 2 is provided with a traction positioning nose 21, and two side edges of the elliptical hole flange plate 2 are provided with limit brackets 22. The hoisting rope 5 is fixed on the traction positioning nose 21, so that the pipeline body 1 can be hoisted and moved conveniently. The limiting support 22 can rapidly position two pipeline bodies 1 which are installed together, is convenient for rapidly installing large-diameter pipelines with DN more than 1200 under the condition of adapting to complex sea conditions such as reciprocating flow, saves cost, and is simple to operate and convenient to construct.
Example 2:
a submarine large-pipe-diameter pipeline installation construction process comprises the following steps:
step 1, processing a pipeline body 1 on land, welding elliptical hole flanges 2 at two ends of the pipeline body 1, and installing an anti-slip pipe shoe 3 in the middle of the pipeline body 1;
step 2, transporting the pipeline body 1 to a transportation installation position by a barge;
and 3, installing the pipeline body 1, hoisting the pipeline body 1 to water, enabling a fixing bolt to pass through the elliptical hole flange plate 2, and connecting the multi-section pipeline body 1 together to finish the installation of the submarine large-pipe-diameter pipeline.
Example 3:
a submarine large-pipe-diameter pipeline installation construction process comprises the following steps:
step 1, land processing pipeline body 1: firstly, processing a pipeline in a production line mode in a factory, wherein the pipeline is made of steel metal, and the length of a single finished pipeline is 12m; then, after the pipeline is transported to a processing site, 3 pipelines are welded into a pipeline body 1, the axes of the 3 pipelines are ensured to be coaxial and straight during welding, and after the welded junction is qualified through ultrasonic nondestructive inspection, anticorrosion paint repair is carried out; afterwards, the elliptical hole flange plate 2 is processed and manufactured in advance in a factory, and is welded at two ends of the pipeline body 1 by full-scale welding after being transported to a processing site; then, two hanging noses 4 are symmetrically arranged along two sides of the gravity center of the pipeline body 1 to serve as hoisting points of the pipeline body 1, two traction positioning noses 21 are arranged at the upper ends of flange elliptical hole flanges 2 at two ends of the pipeline body 1 to serve as positioning traction points, and the centers of all the hanging noses 4 and the traction positioning noses 21 are required to be welded on the same central line and are perpendicular to the axis of the pipeline body 1 so as to ensure that hoisting does not deviate; finally, after the anti-slip pipe shoe 3 is manufactured, an anti-corrosion paint is painted, and two to a plurality of anti-slip pipe shoes 3 are installed on each pipe body 1 and are uniformly distributed;
step 2, transporting pipeline body 1: after the processing of each section of pipeline body 1 in the land prefabricated yard is finished, hoisting the pipeline body 1 to the front edge of a lightering wharf for loading by using a crawler crane, symmetrically and uniformly arranging the pipeline bodies 1 in barge cabins, performing reinforcement and protection measures, and transporting the pipeline bodies to a mounting position by using a barge after the tidal water and ocean current conditions of the mounting site meet the mounting requirements;
step 3, installing the pipeline body 1: first, ship positioning: the ship is positioned and constructed by a GPS (global positioning system) to move a ship position to a mounting point by a ship anchor, so that the ship is parallel to the axis of a mounting pipeline, and the outer side of the ship is close to the mounting point, so that the floating crane is convenient to mount the pipeline body 1; then, hoisting preparation: each section of pipeline body 1 is installed in a two-point hanging mode, a shackle and a steel wire rope which meet the standards are selected according to the weight of the pipeline body 1, a hanging nose of the pipeline body 1 and one end of the steel wire rope are connected through the shackle, the other section of the steel wire rope is hung on a floating hook head, and the floating hook slowly lifts until the steel wire rope is stressed to straighten; the traction positioning noses 21 at the two ends are tied with a cable in advance and are used for positioning the sewer of the pipeline body 1; and then, positioning and mounting the pipeline body 1: the floating crane lifts the hook to enable the pipeline body 1 to gradually leave the deck, the hook head is slowly lowered after the large arm is moved to the installation point to enable the pipeline body 1 to slowly enter water, in the process, the pipeline body 1 is enabled to enter water in parallel with the ship board through adjusting positioning cables at two ends of the pipeline, after the pipeline body 1 enters water to approach the top surface of a foundation bed with leveling completed, a diver enters water to check the installation position of the pipeline body 1, the floating crane is commanded to gradually adjust the position of the pipeline body 1 through limiting brackets 22 at two ends of the pipeline body 1, the anti-slip pipe shoe 3 is slowly implanted, and the pipeline body 1 is butted through the elliptical hole flange plate 2; if a larger gap exists between the elliptical hole flanges (2), the lifting steel wire rope is loosened by the slow descending hook and fixed on the traction positioning nose of the pipeline end hook, and the pipeline is pulled to be slowly close by the floating crane; finally, the pipe body 1 is connected: after the elliptic hole flange plates 2 are tightly butted, a diver passes through elliptic screw holes on the elliptic hole flange plates 2 to manually and preliminarily install and fasten the pipeline body 1, then one end of a wrench is used for fixing a nut, one end of the wrench is used for fastening the nut again, the nut is prevented from falling off in a double-nut mode, and the diver uniformly fastens all the fixing bolts according to the steps; after the installation of the pipeline body 1 is completed, a buoy is installed at the tail end of the pipeline body 1 to make a mark so as to facilitate the next installation and positioning.
Claims (10)
1. The submarine large-pipe-diameter pipeline installation device comprises a pipeline body (1) and is characterized in that elliptical hole flanges (2) are arranged at two ends of the pipeline body (1), and anti-slip pipe boots (3) are arranged on the pipeline body (1); the anti-slip pipe shoe (3) comprises a wave-shaped flat pipe shoe (31), an anti-rolling bracket (32) and a fixed hoop (33), wherein double corrugated plates (311) are symmetrically arranged on two sides of the wave-shaped flat pipe shoe (31), and the anti-rolling bracket (32) is arranged on the wave-shaped flat pipe shoe (31); the anti-rolling support (32) is provided with a fixed hoop (33) matched with the pipeline body (1), and the anti-rolling support (32) is positioned above the double-corrugated board (311).
2. The submarine large-pipe-diameter pipeline installation device according to claim 1, wherein the anti-rolling bracket (32) comprises a vertical rod (321) and an inclined rod (322), the upper ends of the vertical rod (321) and the inclined rod (322) are connected together by a cross rod (323), the vertical rod (321) is arranged on the outer side of a double-corrugated plate (311), the inclined rod (322) is arranged on the inner side of the double-corrugated plate (311), and the inclined rod (322) is in contact connection with the pipeline body (1); the cross bar (323) is provided with a fixed hoop (33).
3. The submarine large-pipe-diameter pipeline installation device according to claim 1, wherein bolt holes are formed in the cross rods (323), bolts are welded on the fixing hoops (33), and the fixing hoops (33) are detachably connected with the cross rods (323) through the bolts.
4. The submarine large-pipe-diameter pipeline installation device according to claim 2, wherein the double corrugated plate (311) comprises a first corrugated plate (312) and a second corrugated plate (313) which are symmetrically arranged, the first corrugated plate (312) and the second corrugated plate (313) are connected through a third corrugated plate (314), and the upper end of the first corrugated plate (312) is in contact connection with the inner side of the diagonal rod (322).
5. The submarine large-pipe-diameter pipeline installation device according to claim 1, wherein a hanging nose (4) is further arranged in the middle of the pipeline body (1), and the hanging nose (4) is positioned between two fixed hoops (33) of the anti-slip pipe shoe (3).
6. The submarine large-pipe-diameter pipeline installation device according to claim 1, wherein a traction positioning nose (21) is arranged at the upper end of the elliptical hole flange plate (2), and a limit bracket (22) is arranged on the side edge of the elliptical hole flange plate (2).
7. The submarine large-pipe-diameter pipeline installation construction process is characterized by comprising the following steps of:
step 1, processing a pipeline body (1) on land, welding elliptical hole flanges (2) at two ends of the pipeline body (1), and installing an anti-slip pipe shoe (3) in the middle of the pipeline body (1);
step 2, transporting the pipeline body (1) to a transportation installation position by a barge;
and 3, installing the pipeline body (1), hoisting the pipeline body (1) to water, enabling a fixing bolt to pass through the elliptical hole flange plate (2), and connecting the multi-section pipeline body (1) together to finish the installation of the submarine large-pipe-diameter pipeline.
8. The installation and construction process of the submarine large-diameter pipeline according to claim 7, wherein in the step 1, firstly, the pipeline is processed in a production line mode in a factory, the pipeline is made of steel metal, and the length of a single finished pipeline is 12m; then, after the pipeline is transported to a processing site, 3 pipelines are welded into a pipeline body (1), the axes of the 3 pipelines are ensured to be coaxial and straight during welding, and after passing ultrasonic nondestructive inspection, anticorrosion paint repair is performed; afterwards, the elliptical hole flange plate (2) is processed and manufactured in advance in a factory, and is welded at the two ends of the pipeline body (1) by full-length welding after being transported to a processing site; then, two hanging noses (4) are symmetrically arranged along two sides of the gravity center of the pipeline body (1) to serve as hoisting points of the pipeline body (1), two traction positioning noses (21) are arranged at the upper ends of flange elliptical hole flanges (2) at two ends of the pipeline body (1) to serve as positioning traction points, the centers of all the hanging noses (4) and the traction positioning noses (21) are required to be on the same central line and are welded with the axis of the pipeline body (1) vertically so as to ensure that hoisting does not deviate; finally, after the anti-slip pipe shoe (3) is manufactured, the anti-corrosion paint is painted, and two to a plurality of anti-slip pipe shoes (3) are installed on each pipeline body (1) and are uniformly distributed.
9. The installation construction process of the submarine large-diameter pipeline according to claim 7, wherein in the step 2, after the processing of each pipeline body (1) in a land prefabricated field is completed, the pipeline body (1) is hoisted to the front edge of a lightering dock for loading by using a crawler crane, the pipeline bodies (1) are symmetrically and uniformly placed in a barge cabin, reinforcement and protection measures are carried out, and after the tidal water and ocean current conditions of the installation site meet the installation requirements, the pipeline body is transported to an installation position by using a barge.
10. The installation and construction process of the submarine large-diameter pipeline according to claim 7, wherein in the step 3, first, the ship is positioned: the ship is positioned and constructed by a GPS (global positioning system) to move a ship position to a mounting point, so that the ship is parallel to the axis of a mounting pipeline, and the outer side of the ship is close to the mounting point, so that the floating crane is convenient to mount the pipeline body (1); then, hoisting preparation: each section of pipeline body (1) is installed in a two-point hanging mode, a shackle and a steel wire rope which meet the standards are selected according to the weight of the pipeline body (1), a nose of the pipeline body (1) is connected with one end of the steel wire rope through the shackle, the other section of the steel wire rope is hung on a floating hook head, and the floating hook slowly lifts until the steel wire rope is stressed to straighten; the traction positioning noses (21) at the two ends are tied with a cable in advance and are used for positioning the sewer of the pipeline body (1); and then, positioning and mounting the pipeline body (1): the floating crane hook enables the pipeline body (1) to gradually leave the deck, the hook head is slowly lowered after the large arm is moved to the mounting point to enable the pipeline body (1) to slowly enter water, the pipeline body (1) is enabled to enter water in parallel to the ship board through positioning cables at two ends of the adjusting pipeline in the process, after the pipeline body (1) enters water to approach the top surface of a foundation bed with leveling completed, a diver enters water to check the mounting position of the pipeline body (1), the floating crane is commanded to gradually adjust the position of the pipeline body (1) through limiting brackets (22) at two ends of the pipeline body (1), and the anti-slip pipe shoe (3) is slowly implanted, and the pipeline body (1) is butted through an elliptical hole flange plate (2); finally, the pipeline body (1) is connected with: after the elliptic hole flange plates (2) are tightly butted, a diver passes through elliptic screw holes on the elliptic hole flange plates (2) to manually and preliminarily install and fasten the pipeline body (1), then one end of a wrench is used for fixing a nut, one end of the wrench is used for fastening the nut again, the double-nut type is adopted to prevent falling, and the diver uniformly fastens all the fixing bolts according to the steps; after the installation of the pipeline body (1) is completed, a buoy is installed at the tail end of the pipeline body (1) to be marked, so that the next installation and positioning are facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943465.XA CN116717631A (en) | 2023-07-31 | 2023-07-31 | Submarine large-pipe-diameter pipeline installation device and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943465.XA CN116717631A (en) | 2023-07-31 | 2023-07-31 | Submarine large-pipe-diameter pipeline installation device and construction process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116717631A true CN116717631A (en) | 2023-09-08 |
Family
ID=87873702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310943465.XA Pending CN116717631A (en) | 2023-07-31 | 2023-07-31 | Submarine large-pipe-diameter pipeline installation device and construction process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116717631A (en) |
-
2023
- 2023-07-31 CN CN202310943465.XA patent/CN116717631A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5269629A (en) | Elastomeric swivel support assembly for catenary riser | |
| US4735267A (en) | Flexible production riser assembly and installation method | |
| US5609441A (en) | Method and apparatus for the offshore installation of multi-ton prefabricated deck packages on partially submerged offshore jacket foundations | |
| JPH09508186A (en) | High tension leg platform and its installation method | |
| CN101881148B (en) | Jacket riser mounting method and special riser component thereof | |
| CN109506044A (en) | A kind of pipeline under the ocean construction technology | |
| CN104631602B (en) | Sewage deep sea emission engineering marine site pipeline construction method | |
| WO2003074353A1 (en) | A method for underwater transportation and installation or removal of objects at sea | |
| US20060056918A1 (en) | Riser system connecting two fixed underwater installations to a floating surface unit | |
| US4909671A (en) | Method for installation of a buoyant body on a sea bottom | |
| AU2018273178B2 (en) | Method and system for laying a submarine pipeline | |
| CN213508514U (en) | Offshore operation platform for bagged sand construction | |
| CN110185057B (en) | Tool and construction method for lifting and erecting steel pipe piles of offshore wind power single pile foundation | |
| BRPI1001222A2 (en) | FLOATING BOARD FRAMEWORK UNIT WITH FRAMEWORK | |
| US20080089745A1 (en) | Method And Device For Connecting A Riser To A Target Structure | |
| CN116280054B (en) | Tension cable type offshore floating wind power generation platform foundation and installation method thereof | |
| CN107013743A (en) | Deep water hydrocarbon platform steel catenary riser installation method | |
| CN116717631A (en) | Submarine large-pipe-diameter pipeline installation device and construction process thereof | |
| CN101929581A (en) | Underwater pipe clamp mounting method | |
| CN113879487B (en) | Non-self-floating immersed tube discharging method | |
| CN115653002A (en) | Long-distance underwater transportation method for immersed tube | |
| CN115258092A (en) | Floating type water photovoltaic integral installation method | |
| CN220320471U (en) | Submarine large-pipe-diameter pipeline installation device | |
| GB2222190A (en) | Installing large, heavy structures on the sea bottom | |
| CN116306082B (en) | Design method for installation parameters of submarine pipeline in deep sea section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |