CN117739170A - Underwater pipeline installation equipment and installation method - Google Patents
Underwater pipeline installation equipment and installation method Download PDFInfo
- Publication number
- CN117739170A CN117739170A CN202410070107.7A CN202410070107A CN117739170A CN 117739170 A CN117739170 A CN 117739170A CN 202410070107 A CN202410070107 A CN 202410070107A CN 117739170 A CN117739170 A CN 117739170A
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- pipeline
- underwater
- splicing
- ship
- pipelines
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- 238000009434 installation Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The invention relates to an underwater pipeline installation device and an installation method, wherein the underwater pipeline installation device comprises: the splicing ship comprises a ship body and pipeline splicing equipment arranged on the ship body, the pipeline splicing equipment is used for splicing pipeline monomers end to end in sequence to form pipelines, the balancing weights are arranged on the pipelines at intervals, and the air bags are detachably connected with the balancing weights or the pipelines. The underwater pipeline installation method comprises the following steps: splicing pipeline monomers on the ship body by utilizing pipeline splicing equipment to form a pipeline, and installing a balancing weight and an air bag; gradually sliding the pipeline into water and controlling the depth of the pipeline by utilizing an air bag; the pipeline is removed and the balloon is recovered after being installed in place. Compared with the prior art, the underwater pipeline installation equipment provided by the invention adopts the spliced ship to splice pipelines on the ship, and then slides into water in sequence, so that no underwater joint exists, the quality of the pipelines can be improved, the service life of the pipelines can be prolonged, the construction efficiency can be improved, and the construction cost can be reduced.
Description
Technical Field
The invention relates to the technical field of underwater pipelines, in particular to an underwater pipeline installation device and an underwater pipeline installation method.
Background
Underwater pipelines are pipelines laid under water in rivers, lakes, seas for transporting liquids, gases or loose solids. The underwater pipeline is installed by adopting a pipeline splicing ship to be spliced into a stage with the length of 50-60 m, then the underwater installation is carried out by utilizing a floating crane, and the underwater pipeline joint is required to be butted during the installation.
Disclosure of Invention
In view of the foregoing, it is necessary to provide an underwater pipeline installation apparatus and an installation method, which are used for solving the technical problems of poor quality and shorter service life of the underwater pipeline installed by adopting a floating crane in the prior art.
The present invention provides an underwater pipeline installation apparatus comprising: the splicing ship comprises a ship body and pipeline splicing equipment arranged on the ship body, the pipeline splicing equipment is used for splicing pipeline monomers end to end in sequence to form pipelines, the balancing weights are arranged on the pipelines at intervals, and the air bags are detachably connected with the balancing weights or the pipelines.
Further, a plurality of balancing weights are arranged on the pipeline at equal intervals, and the air bags are correspondingly and detachably connected with the balancing weights.
Further, the spliced boat further comprises a sliding ramp arranged on the boat body, the bottom end of the sliding ramp extends to the edge of the boat body, and the pipeline slides into water along the sliding ramp.
Further, a mounting groove is formed on the sliding ramp.
Further, the assembling ship further comprises an air cushion arranged in the mounting groove and an air supply device communicated with the air cushion, the balancing weight is arranged on the air cushion, and the air supply device can supply air to the air cushion to lift the balancing weight.
Further, the balancing weight comprises an upper half part, a lower half part and a connecting piece, wherein the upper half part and the lower half part can surround the pipeline, and the connecting piece is connected with the upper half part and the lower half part at the same time.
Further, the device also comprises a traction ship and a traction rope, wherein the traction ship is detachably connected with the pipeline through the traction rope so as to pull the pipeline to move along the direction perpendicular to the length direction of the pipeline.
Further, the gasbag is hammer-shaped structure, and it includes the expansion portion and the rectangular portion of intercommunication each other, rectangular portion is located expansion portion top and rectangular portion surface has the scale.
Furthermore, the pipeline monomer is a PE pipe, and the pipeline splicing equipment is a PE pipe hot-melt welding machine.
The invention provides an underwater pipeline installation method, which adopts underwater pipeline installation equipment and comprises the following steps: splicing pipeline monomers on the ship body by utilizing pipeline splicing equipment to form a pipeline, and installing a balancing weight and an air bag; gradually sliding the pipeline into water and controlling the depth of the pipeline by utilizing an air bag; the pipeline is removed and the balloon is recovered after being installed in place.
Compared with the prior art, the underwater pipeline installation equipment provided by the invention adopts the spliced ship to splice pipelines on a ship, and then slides into water in sequence, so that no underwater joint exists, the quality of the pipeline can be improved, the service life of the pipeline can be prolonged, the construction efficiency can be improved, and the construction cost can be reduced; meanwhile, the air bags are used for providing buoyancy support when the pipeline is lowered, the falling speed is slowed down, and damage to the pipeline is reduced in the lowering process.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and its details set forth in the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a front view of one embodiment of an underwater pipeline installation apparatus provided by the present invention;
FIG. 2 is a top view of one embodiment of an underwater pipeline installation apparatus provided by the present invention;
fig. 3 is a side view of an embodiment of the underwater pipeline installation apparatus provided by the present invention.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the invention, and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the invention provides an underwater pipeline installation device, which comprises a fabricated ship 1, a balancing weight 2 and an airbag 3, wherein the fabricated ship 1 comprises a ship body 11 and pipeline splicing devices arranged on the ship body, and the pipeline splicing devices are used for splicing pipeline monomers 9 end to end in sequence to form a pipeline. It is easy to understand that the pipe splicing apparatus needs to be adapted to the kind of material of the pipe unit 9, thereby realizing the effect of connection. As in some embodiments, the pipe monomers are PE pipes, and the pipe splicing apparatus correspondingly employs a PE pipe hot melt welder. The balancing weights 2 are arranged on the pipeline at intervals, so that the pipeline can sink to the water smoothly. And after sinking to the water bottom, the balancing weight 2 is used for pressing the pipeline, so that the pipeline is prevented from moving due to water flow impact. The air bag 3 is detachably connected with the balancing weight 2 or the pipeline and is used for generating buoyancy in the sinking process so as to offset the gravity of a part of the balancing weight 2, thereby reducing the tensile force received by the two ends of the single-section pipeline monomer 9 and avoiding the pipeline from being damaged.
The underwater pipeline installation equipment provided by the invention adopts the spliced ship 1 to splice pipelines on a ship, and then the pipelines slide into water in sequence, so that no underwater joint exists, the quality of the pipelines can be improved, the service life of the pipelines can be prolonged, the construction efficiency can be improved, and the construction cost can be reduced. Meanwhile, the air bag 3 plays a role in providing buoyancy support when the pipeline is lowered, so that the falling speed is slowed down, and the damage to the pipeline is reduced in the lowering process.
In some embodiments, the fabricated ship 1 further comprises a downslope 12 provided on the hull 11, the bottom end of the downslope 12 extending to the edge of the hull 11, the pipeline sliding into the water along the downslope 12. The inclination angle of the downslope path 12 is also reasonably selected, preferably, when the pipe monomer 9 is placed on the downslope path 12, the downslope force applied to the pipe monomer 9 is slightly smaller than the maximum static friction force applied to the pipe monomer, namely, the pipe monomer 9 cannot slide down on the downslope path 12 independently, but can be pushed to slide downwards only by giving a small pushing force. This angle is typically around 20 °.
In some embodiments, a mounting groove 121 is also formed on the downslope 12. The mounting groove 121 is designed to facilitate the mounting of the weight.
In a preferred embodiment, the fabricated ship 1 further comprises an air cushion disposed in the mounting groove 121, and an air supply device (not shown) in communication with the air cushion, the weight 2 being placed on the air cushion, the air supply device being capable of supplying air into the air cushion to inflate the air cushion, thereby lifting the weight 2. In other embodiments, other lifting devices may be used to raise the counterweight 2.
In some embodiments, when the self weight of the pipe monomer 9 is large, a lifting device such as a crane may be further arranged on the ship to carry the pipe monomer 9. Manual handling may also be used when the pipe monomers 9 have a small dead weight.
In some embodiments, several weights 2 are equally spaced on the pipeline, thereby making the arrangement of weights on the pipeline uniform. The air bag 3 is correspondingly detachably connected with the balancing weight 2.
In the preferred embodiment, the weight 2 includes an upper half, a lower half, and a connector, where the upper half and the lower half can be hooped around the pipeline, and the lower half can be placed in the mounting groove 121 and connected to the upper half by air cushion jacking. The connecting piece is connected with the upper half and the lower half simultaneously. The connecting piece can adopt common bolt, has seted up the bolt hole on the upper half and the lower half corresponds, screws into the bolt and realizes fixing. The counterweight 2 is generally produced from a metal having a relatively large dead weight, such as cast iron.
In some embodiments, the balloon 3 is a hammer-shaped structure comprising an enlarged portion and a strip portion in communication with each other, the strip portion being located above the enlarged portion and the surface of the strip portion being graduated. In the sinking process of the pipeline, the expanding radicals are immersed in water first, so that most buoyancy is provided for the pipeline to offset most of the weight of the large balancing weight 2. As the pipeline sinks, the strip portion is gradually submerged, but the volume of the strip portion is smaller, and the generated buoyancy is smaller. So that the buoyancy experienced by the pipeline during sinking is not greatly changed. And the scale on the strip can also indicate the depth of the pipeline run.
In some embodiments, the air bag 3 may be a rubber cloth structure, which can bear a pressure of above 0.5MPa, and the length of the air bag is required to ensure that part of the top of the air bag 3 is not submerged in water when the pipeline is in place, and a hanging belt is arranged at the bottom of the air bag 3, so that the air bag is convenient to connect with the balancing weight 2. The top of the air bag 3 is provided with an air tap which is convenient for inflation and deflation, the air tap is connected with a deflation pipeline, the deflation pipeline is a hose, and the end of the hose is provided with a switch. In this embodiment, the buoyancy may be reduced by deflating the bladder 3, thereby lowering the pipeline.
In a preferred embodiment, the present underwater pipeline installation apparatus further comprises a towing vessel 4 and a towing line 5, the towing vessel 4 being detachably connected to the pipeline by the towing line 5 to pull the pipeline for movement in a direction perpendicular to its length.
The underwater pipeline installation method adopts the underwater pipeline installation equipment and specifically comprises the following steps: pipeline is formed by splicing pipeline monomers 9 on the ship body by utilizing pipeline splicing equipment, and the balancing weight 2 and the air bag 3 are installed. Specifically, the single pipeline 9 is hoisted to pipeline splicing equipment by adopting manual or hoisting equipment to be spliced into a pipeline whole. And then the air bag is moved to the downslope 12 to be provided with the balancing weight 2, the air bag 3 and the traction rope 5.
The pipeline is gradually slid into the water, and one end of the pipeline is connected with one end of the pipeline monomer 9 after the pipeline is slid down. The water inlet depth of the pipeline is determined by the scale marks on the air bag 3 according to the line type control requirement. The axis position or the plane position of the pipeline is calculated and determined through the plane included angle, the length, the position of the traction ship 4 and the like of the traction rope 5, and after the pipeline is installed in place, the airbag 3 and the traction rope 5 can be unwound by a diver, and an automatic tripping facility can also be arranged. The air bags 3 are recycled to the fabricated ship 1 for reuse.
Compared with the prior art, the underwater pipeline installation equipment provided by the invention adopts the spliced ship to splice pipelines on a ship, and then slides into water in sequence, so that no underwater joint exists, the quality of the pipeline can be improved, the service life of the pipeline can be prolonged, the construction efficiency can be improved, and the construction cost can be reduced; meanwhile, the air bags are used for providing buoyancy support when the pipeline is lowered, the falling speed is slowed down, and damage to the pipeline is reduced in the lowering process.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. An underwater pipeline installation apparatus, comprising: the splicing ship comprises a ship body and pipeline splicing equipment arranged on the ship body, the pipeline splicing equipment is used for splicing pipeline monomers end to end in sequence to form a pipeline, the balancing weights are arranged on the pipeline at intervals, and the air bags are detachably connected with the balancing weights or the pipeline.
2. The underwater pipeline installation apparatus of claim 1, wherein a plurality of the weights are provided on the pipeline at equal intervals, and the air bag is detachably connected to the weights.
3. The underwater pipeline installation apparatus of claim 1 wherein the fabricated vessel further comprises a downslope provided on the hull, a bottom end of the downslope extending to the hull edge, the pipeline sliding into the water along the downslope.
4. A submarine pipeline installation according to claim 3, wherein the downhill ramp further has a mounting slot formed therein.
5. The underwater pipeline installation apparatus of claim 4, wherein the assembling vessel further comprises an air cushion disposed in the installation groove and an air supply device communicated with the air cushion, the weight block being placed on the air cushion, the air supply device being capable of supplying air into the air cushion to raise the weight block.
6. The subsea pipeline mounting device according to claim 1, wherein the weight comprises an upper half, a lower half, and a connector, the upper half and the lower half being adapted to surround the pipeline, the connector being connected to both the upper half and the lower half.
7. The underwater pipeline installation apparatus of claim 1, further comprising a tow boat and a tow cable, the tow boat being detachably connected to the pipeline by the tow cable to pull the pipeline for movement perpendicular to its length.
8. The underwater pipeline installation apparatus of claim 1 wherein the bladder is a hammer-like structure comprising an enlarged portion and a strip portion in communication with each other, the strip portion being located above the enlarged portion and the strip portion surface having graduations.
9. The underwater pipeline installation apparatus of claim 1, wherein the pipeline monomers are PE pipes and the pipeline splicing apparatus is a PE pipe hot melt welder.
10. A method of installing an underwater pipeline, characterized in that it employs the underwater pipeline installation apparatus as claimed in any one of claims 1 to 9, comprising the steps of:
splicing pipeline monomers on the ship body by utilizing the pipeline splicing equipment to form a pipeline, and installing the balancing weight and the air bag; gradually sliding the pipeline into water and controlling the depth of the pipeline by utilizing the air bag; the pipeline is removed after being in place and the balloon is recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410070107.7A CN117739170A (en) | 2024-01-17 | 2024-01-17 | Underwater pipeline installation equipment and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410070107.7A CN117739170A (en) | 2024-01-17 | 2024-01-17 | Underwater pipeline installation equipment and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117739170A true CN117739170A (en) | 2024-03-22 |
Family
ID=90254672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410070107.7A Pending CN117739170A (en) | 2024-01-17 | 2024-01-17 | Underwater pipeline installation equipment and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117739170A (en) |
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2024
- 2024-01-17 CN CN202410070107.7A patent/CN117739170A/en active Pending
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