CN116461679A - Buoyancy dynamic balance deployment and recovery method for submarine pipeline mapping tool - Google Patents
Buoyancy dynamic balance deployment and recovery method for submarine pipeline mapping tool Download PDFInfo
- Publication number
- CN116461679A CN116461679A CN202310483017.6A CN202310483017A CN116461679A CN 116461679 A CN116461679 A CN 116461679A CN 202310483017 A CN202310483017 A CN 202310483017A CN 116461679 A CN116461679 A CN 116461679A
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- Prior art keywords
- cabin
- scanning
- buoyancy
- balancing weight
- seawater
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- 238000013507 mapping Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 239000013535 sea water Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract 2
- 108010066057 cabin-1 Proteins 0.000 description 27
- 230000005484 gravity Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/22—Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B23/00—Equipment for handling lifeboats or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention discloses a buoyancy dynamic balance deployment and recovery method for a submarine pipeline mapping tool, which comprises a deployment method and a recovery method; the laying method comprises the following steps: slowly lifting the whole mapping tool into the sea, and adjusting the buoyancy in the laying process through the water inflow of the buoyancy cabin and the balancing weight; closing the scanning cabin after sitting on the pipe; discharging the seawater in the scanning cabin to a floating cabin, discharging the residual seawater to the outside after the floating cabin is full, completely lowering the balancing weight, and opening the pneumatic diaphragm pump normally; the recovery method comprises the following steps: pumping air into the floating cabin to enable the seawater in the floating cabin to be filled into the scanning cavity downwards; inflating and pressurizing the scanning cabin, opening the scanning cabin, and filling seawater into the scanning cabin; loosening a balancing weight steel wire rope, and tensioning a hoisting steel cable; the crane slowly lifts by crane, inflates the drainage increase buoyancy in the buoyancy cabin, and simultaneously hydraulic winch continues to loosen balancing weight wire rope, lifts by crane the survey frock and balancing weight is whole to go out water, accomplishes the frock and retrieves. The invention can realize the buoyancy dynamic balance deployment and recovery of the mapping tool.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a buoyancy dynamic balance deployment and recovery method for a submarine pipeline mapping tool.
Background
The submarine pipeline is a pipeline system laid on the seabed, and is widely applied to ocean engineering due to the advantages of continuous conveying, large conveying capacity, convenient management and the like as a carrier for conveying oil gas from ocean to land. But is very easy to generate chemical corrosion and mechanical damage when facing to severe ocean environment, and is influenced by external environments such as geological motion, seawater pressure and the like.
Patent CN115468123a discloses a tool and a method for accurately mapping deformation defects of submarine pipelines, the tool comprises an outer frame, a scanning cabin, a floating cabin, a balancing weight and the like, the scanning cabin is lowered to the seabed and seals the submarine pipelines, a three-dimensional scanning driving device in the scanning cabin drives a three-dimensional scanner to perform omnibearing scanning on the submarine pipelines in the scanning cabin, and accurate mapping of the deformation defects of the submarine pipelines is achieved. However, for the accurate mapping tool for the deformation defects of the submarine pipeline, the laying and recovery links of the tool are still required to be perfected, and the correct laying and recovery are important links for ensuring the normal operation of the tool, and the tool still needs to be subjected to intensive research and perfection.
Disclosure of Invention
The invention aims to provide a buoyancy dynamic balance deployment and recovery method for a submarine pipeline mapping tool, which is used for solving the problems in the prior art and realizing the buoyancy dynamic balance deployment and recovery of the mapping tool.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a buoyancy dynamic balance deployment and recovery method for a submarine pipeline mapping tool, which comprises a deployment method and a recovery method;
the arrangement method comprises the following steps:
s11: hanging the whole surveying and mapping tool slowly in the sea, opening an exhaust valve, simultaneously opening a butterfly valve, utilizing water pressure to feed water into the buoyancy cabin, and comprehensively adjusting buoyancy in the laying process through water feeding and the balancing weight when the balancing weight steel wire rope is in a tightening state;
s12: the mapping tool is used for completely sitting the pipe, and after the position of the sitting pipe is confirmed to be accurate, the scanning cabin is closed to seal the pipeline to be tested;
s13: the three-way valve is switched to communicate the scanning cabin with the floating cabin, the scanning cabin is inflated by the inflation inlet, the submersible pump is started at the same time, seawater in the scanning cabin is discharged into the floating cabin, after the floating cabin is full of seawater, the three-way valve is switched to discharge the residual seawater into the external seawater environment through the three-way valve, then the three-way valve is closed, the scanning cabin is full of gas at the moment, the floating cabin is full of seawater, and the balancing weight is completely lowered to balance the buoyancy brought by the scanning cabin; a normally open pneumatic diaphragm pump for maintaining the seawater emptying state in the scanning cabin; according to the attitude sensor and the winch tension sensor in the drainage and inflation process, the state change of the mapping tool is monitored in real time and adjusted at any time so as to ensure that the position of the mapping tool is not deviated;
the recovery method comprises the following steps:
s21: switching the three-way valve to communicate the floating cabin with the scanning cabin, pumping air into the floating cabin to enable the seawater in the floating cabin to be filled into the scanning cavity, and then closing the three-way valve;
s22: inflating and pressurizing the scanning cabin, so that the scanning cabin is conveniently opened, and seawater fills the scanning cabin after the scanning cabin is opened;
s23: operating the hydraulic winch to enable the balancing weight steel wire rope to be in a loose state, and enabling a hoisting steel cable between the crane and the balancing weight to be in a tensioning state;
s24: the crane hook slowly ascends to lift, the internal seawater is continuously inflated into the buoyancy cabin in the lifting process to be discharged, so that the buoyancy is increased, meanwhile, the hydraulic winch continuously loosens the steel wire rope of the balancing weight, the mapping tool and the balancing weight are integrally lifted to discharge water, and tool recovery is completed;
wherein, buoyancy module and scanning cabin are all installed in outer frame, and buoyancy module passes through the drain pipe and scans the cabin intercommunication, and two ports of three-way valve are connected on the drain pipe, and three-way valve's third port communicates with external world, discharge valve and butterfly valve set up on buoyancy module, and the immersible pump sets up in scanning the cabin and is connected with the drain pipe, and the balancing weight passes through balancing weight wire rope and installs the hydraulic winch on outer frame and be connected, and attitude sensor sets up on outer frame, and winch tension sensor is used for detecting balancing weight wire rope's pulling force.
Compared with the prior art, the invention has the following technical effects:
the buoyancy dynamic balance deployment and recovery method for the submarine pipeline mapping tool provided by the invention realizes the buoyancy dynamic balance deployment and recovery of the mapping tool through the combined use of the scanning cabin, the buoyancy cabin and the balancing weight, has simple and reliable whole deployment or recovery operation flow, is convenient to master, can be applied to various buoyancy adjusting devices, and is very easy to popularize and apply.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a three-dimensional mapping tool for submarine pipelines in an embodiment;
FIG. 2 is a top view of a three-dimensional mapping tool for subsea pipelines in an embodiment;
FIG. 3 is a side view of a three-dimensional mapping tool for subsea pipelines in an embodiment;
in the figure: 1-buoyancy chamber, 2-outer frame, 3-scanning cabin, 4-sewer pipe, 5-three-way valve, 6-buoyancy chamber pipeline, 7-butterfly valve, 8-pneumatic diaphragm pump, 9-balancing weight, 10-steel cable pipe, 11-hydraulic winch, 12-lug, 13-discharge valve, 14-submarine pipeline, 15-level gauge, 16-attitude sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a buoyancy dynamic balance deployment and recovery method for a submarine pipeline mapping tool, which is used for solving the problems existing in the prior art and realizing the buoyancy dynamic balance deployment and recovery of the mapping tool.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-3, the embodiment provides a three-dimensional mapping tool for submarine pipelines, which comprises a floating cabin 1, an outer frame 2 and a scanning cabin 3, wherein the floating cabin 1 and the scanning cabin 3 are both installed in the outer frame 2, the floating cabin 1 is communicated with the scanning cabin 3 through a drain pipe 4, a three-way valve 5 is arranged on the drain pipe 4, two ports of the three-way valve 5 are connected to the drain pipe 4, a third port of the three-way valve 5 is communicated with the outside, a submersible pump is arranged in the scanning cabin 3 and is connected with the drain pipe 4, the tool is used for pumping seawater in the scanning cabin 3 into the floating cabin 1 or the outside through the drain pipe 4, a floating cabin pipeline 6 communicated with the outside is arranged on the floating cabin 1, a butterfly valve 7 is arranged on the floating cabin pipeline 6, an exhaust valve 13 is also arranged on the floating cabin 1, and a pneumatic diaphragm pump 8 is arranged on the outer frame 2 and is used for pumping seawater in the scanning cabin 3.
The floating cabin 1 and the scanning cabin 3 are respectively provided with a liquid level meter 15 for detecting the water level in the floating cabin 1 and the scanning cabin 3. The floating cabin 1 and the scanning cabin 3 are respectively provided with an air charging port, and the air charging ports are connected with an air pump and are used for adjusting the air pressure in the floating cabin 1 and the scanning cabin 3 through the air pump.
Two sides of the outer frame 2 are respectively provided with a balancing weight 9, the two balancing weights 9 are used for being hung on two sides of a submarine pipeline 14, the balancing weights 9 are connected with a hydraulic winch 11 arranged on the outer frame 2 through balancing weight steel wire ropes, and the balancing weight steel wire ropes can be tensioned or loosened through the hydraulic winch 11; lifting lugs 12 are arranged on the outer frame 2 and the balancing weight 9, steel cable guide pipes 10 are fixedly arranged on two sides of the outer frame 2, the lifting lugs 12 are used for connecting lifting steel cables, and lifting lugs 12 on the balancing weight 9 are connected through the lifting steel cables by penetrating through the steel cable guide pipes 10. The outer frame 2 is provided with an attitude sensor 16 for monitoring the attitude of the three-dimensional mapping tool on the seabed. The hydraulic winch 11 is provided with a winch tension sensor for detecting the tension of the balancing weight steel wire rope.
The buoyancy dynamic balance laying and recycling method for the submarine pipeline mapping tool comprises a laying method and a recycling method;
the laying method comprises the following steps:
s11: slowly lifting the whole mapping tool into the sea, opening the exhaust valve 13, simultaneously opening the butterfly valve 7, and utilizing water pressure to feed water into the buoyancy chamber 1, wherein the balancing weight steel wire rope is in a tightening state, and comprehensively adjusting the buoyancy in the process of deployment through the water feeding amount and the balancing weight 9;
s12: the mapping tool is completely seated on a pipe, and after the pipe seating position is confirmed to be accurate, the scanning cabin 3 is closed to seal a pipeline to be tested;
s13: the three-way valve 5 is switched to communicate the scanning cabin 3 and the floating cabin 1, the scanning cabin 3 is inflated by an inflation port, the submersible pump is started at the same time, seawater in the scanning cabin 3 is discharged into the floating cabin 1, after the floating cabin 1 is filled with the seawater, the three-way valve 5 is switched to discharge the residual seawater into the external seawater environment through the three-way valve 5, then the three-way valve 5 is closed, the scanning cabin 3 is filled with gas at the moment, the floating cabin 1 is filled with seawater, the balancing weight 9 is completely lowered, and the buoyancy brought by the scanning cabin 3 is balanced; a normally open pneumatic diaphragm pump 8 for maintaining the seawater emptying state in the scanning cabin 3; in the drainage and inflation process, according to the attitude sensor 16 and the winch tension sensor, the state change of the mapping tool is monitored in real time and adjusted at any time so as to ensure that the position of the mapping tool is not deviated;
the recovery method comprises the following steps:
s21: the three-way valve 5 is switched to communicate the floating cabin 1 with the scanning cabin 3, the floating cabin 1 is inflated, the sea water in the floating cabin 1 is inflated to the scanning cabin 3, and then the three-way valve 5 is closed;
s22: inflating and pressurizing the scanning cabin 3, so that the scanning cabin 3 is conveniently opened, and seawater fills the scanning cabin 3 after the scanning cabin 3 is opened;
s23: the hydraulic winch 11 is operated to enable the balancing weight steel wire rope to be in a loose state, and a hoisting steel cable between the crane and the balancing weight 9 is in a tensioning state;
s24: the crane lifting hook slowly rises to lift, and in the lifting process, the inside seawater is discharged by continuously pumping into the buoyancy cabin 1 so as to increase buoyancy, meanwhile, the hydraulic winch 11 continuously loosens the balancing weight steel wire rope, and the mapping tool and the balancing weight 9 are integrally lifted to discharge water, so that tool recovery is completed.
When the surveying and mapping tool falls, because the buoyancy cabin 1 is all air, the buoyancy is greater than gravity, the tool can possibly turn over, and the buoyancy is reduced by feeding water to the buoyancy cabin 1, so that the buoyancy of the tool is balanced with the gravity, and the tool can stably fall. After the floor, the scanning cabin 3 holds the submarine pipeline tightly, the scanning cabin 3 is drained, the floating cabin 1 is filled with seawater, the scanning cabin 3 is larger than the floating cabin 1, the buoyancy is increased at the moment, and the balancing weight 9 needs to be completely seated to balance the buoyancy brought by the scanning cabin 3 so as to pull the tool body. The same applies when floating upwards.
The buoyancy chamber 1 needs to be inflated for several times in the lowering process, and the internal and external pressure difference of the buoyancy chamber 1 is controlled within 0.1Mpa (namely 10 meters of water depth pressure), so that the internal and external pressure balance of the buoyancy chamber 1 and the stability in the lowering process are ensured.
By adopting the deployment and recovery method, the sinking depth of the mapping tool can be adjusted under the condition of high sea conditions; when the device is placed and recovered, the wind wave layer is avoided, and the relatively stable water layer is selected for placement and recovery, so that the work efficiency and safety of placement and recovery of the mapping tool are improved.
Due to the existence of ocean currents and tides, lowering of the mapping tool is required to wait for the flat tide to go on.
After the device is lowered, the scanning cabin 3 is closed, the weight of the whole mapping tool is enabled to be in a state that gravity is larger than buoyancy on the one hand by seawater filled in the cabin, and gravity balance is carried out by means of the hoisting steel cable at the upper end, so that the mapping tool almost does not generate acting force on the submarine pipeline. In order to enable the mapping tool to perform mapping work on the seabed, an inflation port is utilized to inflate, so that the air pressure in the scanning cabin 3 rises to be balanced with the water pressure outside the cabin, meanwhile, the pneumatic diaphragm pump 8 and the submersible pump in the scanning cabin 3 are started, water in the scanning cabin 3 is firstly transferred into the floating cabin 1, the volume of the scanning cabin 3 is larger than that of the floating cabin 1 according to the volume ratio of the floating cabin 1 to the scanning cabin 3, after a part of water in the scanning cabin 3 is transferred to the floating cabin 1, the water in the residual scanning cabin 3 is discharged into the external seawater environment after the floating cabin 1 is full of water. In the internal conversion process, the buoyancy change of the tool does not exist, the buoyancy of the tool can be increased only after the buoyancy chamber 1 is filled with water and the scanning chamber 3 is continuously emptied, so that the balance of gravity and buoyancy is realized, and the suspension state is achieved.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (1)
1. A buoyancy dynamic balance laying and recycling method for a submarine pipeline mapping tool is characterized by comprising the following steps of: comprises a laying method and a recycling method;
the arrangement method comprises the following steps:
s11: hanging the whole surveying and mapping tool slowly in the sea, opening an exhaust valve, simultaneously opening a butterfly valve, utilizing water pressure to feed water into the buoyancy cabin, and comprehensively adjusting buoyancy in the laying process through water feeding and the balancing weight when the balancing weight steel wire rope is in a tightening state;
s12: the mapping tool is used for completely sitting the pipe, and after the position of the sitting pipe is confirmed to be accurate, the scanning cabin is closed to seal the pipeline to be tested;
s13: the three-way valve is switched to communicate the scanning cabin with the floating cabin, the scanning cabin is inflated by the inflation inlet, the submersible pump is started at the same time, seawater in the scanning cabin is discharged into the floating cabin, after the floating cabin is full of seawater, the three-way valve is switched to discharge the residual seawater into the external seawater environment through the three-way valve, then the three-way valve is closed, the scanning cabin is full of gas at the moment, the floating cabin is full of seawater, and the balancing weight is completely lowered to balance the buoyancy brought by the scanning cabin; a normally open pneumatic diaphragm pump for maintaining the seawater emptying state in the scanning cabin; according to the attitude sensor and the winch tension sensor in the drainage and inflation process, the state change of the mapping tool is monitored in real time and adjusted at any time so as to ensure that the position of the mapping tool is not deviated;
the recovery method comprises the following steps:
s21: switching the three-way valve to communicate the floating cabin with the scanning cabin, pumping air into the floating cabin to enable the seawater in the floating cabin to be filled into the scanning cavity, and then closing the three-way valve;
s22: inflating and pressurizing the scanning cabin, so that the scanning cabin is conveniently opened, and seawater fills the scanning cabin after the scanning cabin is opened;
s23: operating the hydraulic winch to enable the balancing weight steel wire rope to be in a loose state, and enabling a hoisting steel cable between the crane and the balancing weight to be in a tensioning state;
s24: the crane hook slowly ascends to lift, the internal seawater is continuously inflated into the buoyancy cabin in the lifting process to be discharged, so that the buoyancy is increased, meanwhile, the hydraulic winch continuously loosens the steel wire rope of the balancing weight, the mapping tool and the balancing weight are integrally lifted to discharge water, and tool recovery is completed;
wherein, buoyancy module and scanning cabin are all installed in outer frame, and buoyancy module passes through the drain pipe and scans the cabin intercommunication, and two ports of three-way valve are connected on the drain pipe, and three-way valve's third port communicates with external world, discharge valve and butterfly valve set up on buoyancy module, and the immersible pump sets up in scanning the cabin and is connected with the drain pipe, and the balancing weight passes through balancing weight wire rope and installs the hydraulic winch on outer frame and be connected, and attitude sensor sets up on outer frame, and winch tension sensor is used for detecting balancing weight wire rope's pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310483017.6A CN116461679A (en) | 2023-05-04 | 2023-05-04 | Buoyancy dynamic balance deployment and recovery method for submarine pipeline mapping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310483017.6A CN116461679A (en) | 2023-05-04 | 2023-05-04 | Buoyancy dynamic balance deployment and recovery method for submarine pipeline mapping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116461679A true CN116461679A (en) | 2023-07-21 |
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ID=87175273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310483017.6A Pending CN116461679A (en) | 2023-05-04 | 2023-05-04 | Buoyancy dynamic balance deployment and recovery method for submarine pipeline mapping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116461679A (en) |
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2023
- 2023-05-04 CN CN202310483017.6A patent/CN116461679A/en active Pending
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