阅读说明：本技术 一种动态柔性管缆水中浮子及其使用方法 (Dynamic flexible pipe cable underwater floater and using method thereof ) 是由 李留罐 于 2020-04-08 设计创作，主要内容包括：本发明公开了一种动态柔性管缆水中浮子及其使用方法,该浮子装置包括分片纵向连接装置、端部浮力模块、调整浮力模块、外部抱箍装置、中间浮力模块、缓冲卡具、固定卡具；端部浮力模块、调整浮力模块、中间浮力模块均为耐水压发泡材质制造的半圆环形块状体,通过分片纵向连接装置连接形成半圆柱型浮力模块半瓦,通过外部抱箍装置将2个半圆柱型浮力模块半瓦固定连接于缓冲卡具外部,并通过缓冲卡具内部所设置的固定卡具与动态柔性管缆实现固定；本发明在使用过程中,通过不同浮力模块的组合,可以实现不同浮力的快速调整,可在管缆局部发生破损的情况下,对浮力模块进行单独更换修复,无需整体弃置,有效提高浮子使用的经济性。(The invention discloses a dynamic flexible pipe cable underwater floater and a using method thereof, wherein the floater comprises a longitudinal connection device, an end buoyancy module, a buoyancy adjusting module, an external hoop device, a middle buoyancy module, a buffering clamp and a fixing clamp; the end buoyancy module, the buoyancy adjusting module and the middle buoyancy module are semi-circular block bodies made of water pressure resistant foaming materials, are connected through the slicing longitudinal connecting device to form semi-cylindrical buoyancy module half tiles, the 2 semi-cylindrical buoyancy module half tiles are fixedly connected to the outside of the buffering fixture through the external hoop device, and are fixed with the dynamic flexible pipe cable through the fixing fixture arranged in the buffering fixture; in the using process of the invention, the quick adjustment of different floatages can be realized through the combination of different buoyancy modules, the buoyancy modules can be independently replaced and repaired under the condition that the pipe cable is partially damaged, the integral disposal is not required, and the economical efficiency of the use of the floater is effectively improved.)

1. A dynamic flexible pipe cable underwater floater is characterized by comprising a piece-separating longitudinal connecting device (1), an end buoyancy module (2), a buoyancy adjusting module (3), an external hoop device (4), a middle buoyancy module (5), a buffering clamp (6) and a fixing clamp (7);

the end buoyancy module (2) is a semicircular block body made of a water pressure resistant foaming material, an annular groove used for installing the external hoop device (4) is formed in the vertical surface of the outer side of the end buoyancy module (2), and the circular end buoyancy module is formed by tightly holding 2 end buoyancy modules (2) which are bilaterally symmetrical through the external hoop device (4);

the buoyancy adjusting module (3) is a semicircular block body made of water pressure resistant foaming materials, an annular groove used for installing the external hoop device (4) is formed in the vertical surface of the outer side of the buoyancy adjusting module (3), and the annular buoyancy adjusting module is formed by tightly holding 2 buoyancy adjusting modules (3) which are bilaterally symmetrical through the external hoop device (4);

the middle buoyancy module (5) is a semicircular block body made of a water pressure resistant foaming material, an annular groove used for installing the external hoop device (4) is formed in the vertical surface of the outer side of the middle buoyancy module (5), and the annular middle buoyancy module is formed by tightly holding 2 bilaterally symmetrical middle buoyancy modules (5) through the external hoop device (4);

the buffer clamp (6) is arranged in the middle buoyancy module (5), the buffer clamp (6) is an arc-shaped half-tile clamp manufactured by pouring polyurethane with certain elasticity, the buffer clamp (6) is provided with an inner groove sleeve, and the circular buffer clamp is formed by connecting 2 bilaterally symmetrical buffer clamps (6) through bolts;

the fixing clamp (7) is arranged in the buffering clamp (6), the fixing clamp (7) is an arc half-tile clamp made of corrosion-resistant stainless steel, the fixing clamp (7) is provided with an inner hollow column sleeve, and the circular ring fixing clamp is formed by connecting 2 fixing clamps (7) which are bilaterally symmetrical through bolts;

the buoyancy modules at the end parts of the circular rings are 2 groups and are respectively positioned at two ends of the floater; the middle buoyancy modules of the circular ring are 1 group and are positioned in the middle of the floater; the circular ring buoyancy adjusting module is arranged between the circular ring end buoyancy module and the circular ring middle buoyancy module; the end buoyancy module (2), the buoyancy adjusting module (3) and the middle buoyancy module (5) are symmetrically provided with connecting holes;

the full-thread connecting bolt component is made of corrosion-resistant stainless steel, the longitudinal connecting device (1) comprises a screw and a nut, and the screw is connected with the connecting hole in a locking mode through the end buoyancy module (2), the adjusting buoyancy module (3) and the middle buoyancy module (5).

2. The dynamic flexible umbilical cable underwater buoy of claim 1, wherein: the external hoop device (4) is a high-strength steel belt provided with connecting bolts.

3. The dynamic flexible umbilical cable underwater buoy of claim 1, wherein: the inner half ring of the end buoyancy module (2) is a taper half ring with gradually changed inner diameter which is reduced from the end to the inside, and the minimum inner diameter of the inner half ring of the end buoyancy module (2) is slightly larger than the outer diameter of the dynamic flexible pipe cable (8).

4. The dynamic flexible pipe cable water floater of claims 1 and 3, wherein: the end face of the end buoyancy module (2) is symmetrically provided with 2 hoisting grooves with blind holes with certain depth.

5. The dynamic flexible umbilical cable underwater buoy of claim 1, wherein: the inner diameter of the inner semi-ring of the buoyancy adjusting module (3) is slightly larger than the outer diameter of the dynamic flexible pipe cable (8).

6. The dynamic flexible umbilical cable underwater buoy of claim 1, wherein: the inner diameter of the inner semi-ring of the middle buoyancy module (5) is slightly smaller than the outer diameter of the buffer clamp (6).

7. The dynamic flexible umbilical cable underwater buoy of claim 1, wherein: a shallow tooth socket is arranged in the fixing clamp (7).

8. A dynamic flexible pipe cable underwater floater and a using method thereof, wherein the dynamic flexible pipe cable underwater floater is adopted as claimed in any one of claims 1 to 7, and is characterized in that: the use method of the underwater floater of the dynamic flexible pipe cable comprises the following steps:

step S1: calculating the installation position of a floater according to the arrangement form of the dynamic flexible pipe cable (8), completing the assembly of the floater before launching water, fastening the fixing clamp (7) to the outside of the dynamic flexible pipe cable (8), fastening the buffering clamp (6) to the outside of the fixing clamp (7), assembling the end buoyancy module (2), the adjusting buoyancy module (3) and the middle buoyancy module (5) into 1 semi-cylindrical buoyancy module half tile through the slicing longitudinal connecting device (1), sleeving the semi-cylindrical buoyancy module half tile on the outside of the buffering clamp (6), and fixing the cylindrical buoyancy module formed by fixedly connecting the 2 semi-cylindrical buoyancy module half tiles on the outside of the buffering clamp (6) through the external hoop device (4);

step S2: laying the dynamic flexible pipe cable (8), gradually pulling the floater into the water by the weight of the pipe cable in the water after the floater enters the water, and further sinking the floater into the water along with the entry of the pipe cable which is installed without the floater into the water; according to the designed buoyancy requirement, the buoyancy requirements of the buoyancy modules at different positions are different, and the increase or decrease of the buoyancy can be realized by increasing or decreasing the number of the buoyancy modules (3); if the floater is damaged due to accidental damage in the using process, the damaged buoyancy module can be replaced by underwater installation equipment or underwater operation of divers.

Technical Field

The invention relates to a buoyancy device and a using method thereof, in particular to a dynamic flexible pipe cable underwater floater and a using method thereof, and belongs to the technical field of ocean pipe cable engineering.

Background

With the development of deep sea resources in the world, various deep sea equipment is widely applied, and the deep sea equipment is mainly of a floating structure due to the deep depth of the deep sea, so that the equipment cannot be fixed on a seabed. Because the deep sea equipment needs an operation platform on water or on land to provide power and control signals and feed collected data back to the operation platform, a large number of pipelines need to be connected between the deep sea equipment and the water platform. Because the floating structure and the seabed fixed section need to adapt to the heave and overcome the wave flow effect, the connection of the pipe cable cannot be realized by adopting a rigid fixing mode, and the dynamic flexible pipe cable needs to be adopted for connection. Under the deep water environment, the flexible pipe cable distance of connecting between deep sea equipment and the surface of water floating equipment under water is very long, causes the pipe cable weight in aquatic very big, for the joint force that reduces the pipe cable tip, avoids the pipe cable manufacturing in-process because of overcoming the cost surge that environmental factor leads to, and the underwater installation of pipe cable adopts the aquatic of S type to arrange the form usually, reduces the weight of aquatic pipe cable through buoyancy tank or buoyancy piece. At present, a reclaimed water buoy is mainly used, and the closed buoy adopting a steel permanent buoyancy mode realizes underwater lifting of a pipe cable, so that the end connection axial tension on floating equipment is reduced. However, the structure of the reclaimed water buoy is large in size, needs special equipment on the sea for installation, and is high in overall cost and incapable of adapting to connection of flexible pipe cables with proper depth and small quantity.

In the field of connecting deep-water dynamic flexible pipe cables, a buoyancy module with an integral structure is adopted, a buoyancy material is made into two half-tile forms, and two half buoyancy blocks are bound and fixed at positions of the flexible pipe cables needing buoyancy through metal fastening belts. Adopt this kind of mounting means, rely on the brute force between floating block and the anchor clamps to fix for floating block one can not guarantee long-term safety and stability to operation under the high stress state, and the macromolecular material is too early to take place creep or stress relaxation under the high extrusion force operating mode very easily appears, causes the buoyancy block volume to warp, and fastening belt fastening power reduces, finally makes the floating block structure drunkenness cause the inefficacy. The buoyancy block of the integral structure needs a large-sized die to manufacture, the number of times of using the die is low, the consumption is large, the buoyancy block needs to be analyzed during design, and the precision of the installation position needs to be strictly controlled during field installation. The cost of the overall construction of the float is very high and the difficulty of manufacture and installation is also high.

The problems related to the current underwater buoyancy device of the marine dynamic flexible pipe cable are solved by focusing on how to flexibly configure the underwater buoyancy device according to different buoyancy requirements, and realizing on-site quick installation and underwater long-term stable use.

It is against this background that the present patent application provides a dynamic flexible umbilical subsea buoy and methods of use thereof.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art and provide a dynamic flexible pipe cable underwater floater and a using method thereof.

The invention is realized by the following technical scheme:

a dynamic flexible pipe cable underwater floater comprises a piece-separating longitudinal connecting device, an end buoyancy module, a buoyancy adjusting module, an external hoop device, a middle buoyancy module, a buffering clamp and a fixing clamp;

the end buoyancy module is a semicircular block body made of water pressure resistant foaming materials, an annular groove used for installing the external hoop device is formed in the vertical surface of the outer side of the end buoyancy module, and the circular end buoyancy module is formed by tightly holding 2 end buoyancy modules which are bilaterally symmetrical through the external hoop device;

the buoyancy adjusting module is a semicircular block body made of water pressure resistant foaming materials, an annular groove used for installing the external hoop device is formed in the vertical surface of the outer side of the buoyancy adjusting module, and the circular buoyancy adjusting module is formed by tightly holding 2 buoyancy adjusting modules which are bilaterally symmetrical through the external hoop device;

the middle buoyancy module is a semicircular block body made of water pressure resistant foaming materials, an annular groove used for installing the external hoop device is formed in the vertical surface of the outer side of the middle buoyancy module, and the annular middle buoyancy module is formed by tightly holding 2 bilaterally symmetrical middle buoyancy modules through the external hoop device;

the middle buoyancy module is internally provided with the buffering fixture, the buffering fixture is an arc-shaped half-tile fixture which is made by pouring polyurethane with certain elasticity, the buffering fixture is provided with an inner groove sleeve, and the circular buffering fixture is formed by connecting 2 bilaterally symmetrical buffering fixtures through bolts;

the fixing clamp is arranged in the buffering clamp, the fixing clamp is an arc half tile clamp made of corrosion-resistant stainless steel, the fixing clamp is provided with an inner hollow column sleeve, and the circular ring fixing clamp is formed by connecting 2 fixing clamps which are bilaterally symmetrical through bolts;

the buoyancy modules at the end parts of the circular rings are 2 groups and are respectively positioned at two ends of the floater; the middle buoyancy modules of the circular ring are 1 group and are positioned in the middle of the floater; the circular ring buoyancy adjusting module is arranged between the circular ring end buoyancy module and the circular ring middle buoyancy module; the end buoyancy module, the buoyancy adjusting module and the middle buoyancy module are symmetrically provided with connecting holes;

the longitudinal connecting device for the slices is a full-thread connecting bolt assembly made of corrosion-resistant stainless steel and comprises a screw and a nut, and the screw is connected with the nut in a locking mode through a connecting hole formed in the end buoyancy module, the adjusting buoyancy module and the middle buoyancy module.

Preferably, the external hoop device is a high-strength steel belt provided with a connecting bolt.

Preferably, the end buoyancy module inner half rings are tapered half rings with gradually-changed inner diameters which are gradually reduced from the end to the inside, and the minimum inner diameter of the end buoyancy module inner half rings is slightly larger than the outer diameter of the dynamic flexible pipe cable.

Preferably, the end face of the end buoyancy module is symmetrically provided with 2 hoisting grooves with blind holes with certain depth.

Preferably, the inner diameter of the inner half ring of the buoyancy adjusting module is slightly larger than the outer diameter of the dynamic flexible pipe cable.

Preferably, the inner diameter of the inner half ring of the intermediate buoyancy module is slightly smaller than the outer diameter of the buffer clamp.

Preferably, the fixture is internally provided with a shallow socket.

The invention also relates to a using method of the dynamic flexible pipe cable underwater floater, which comprises the following steps:

step S1: calculating the installation position of a floater according to the arrangement form of the dynamic flexible pipe cable, completing floater assembly before launching water, fastening the fixing fixture outside the dynamic flexible pipe cable, fastening the buffering fixture outside the fixing fixture, assembling the end buoyancy module, the adjusting buoyancy module and the middle buoyancy module into 1 semi-cylindrical buoyancy module half tile through the fragment longitudinal connecting device, sleeving the semi-cylindrical buoyancy module half tile outside the buffering fixture, and fixing a cylindrical buoyancy module formed by fixedly connecting 2 semi-cylindrical buoyancy module half tiles outside the buffering fixture through the external hoop device;

step S2: the dynamic flexible pipe cable is laid, the weight of the pipe cable in water is gradually pulled into the water after the floater enters the water, and the floater is further sunk into the water along with the subsequent pipe cable without the floater; according to the designed buoyancy requirement, the buoyancy requirements of the buoyancy modules at different positions are different, and the increase or decrease of the buoyancy can be realized by increasing or decreasing the number of the buoyancy modules; if the floater is damaged due to accidental damage in the using process, the damaged buoyancy module can be replaced by underwater installation equipment or underwater operation of divers.

The invention has the beneficial effects that:

the underwater floater of the dynamic flexible pipe cable is firmly fixed with the flexible pipe cable by the fixing clamp, and the buffering clamp is arranged between the middle buoyancy module and the fixing clamp, so that the use stress of the middle buoyancy module is reduced, the stress relaxation of a buoyancy module manufacturing material, namely a high polymer material, is slowed down and weakened, and the service life is prolonged; in the use process, the combination of different buoyancy modules can realize the quick adjustment of different buoyancy, and the use occasions of the temporary buoyancy adjustment can be dealt with; according to different positions, the buoyancy module combination is arranged, so that the buoyancy module can be independently replaced to realize repair under the condition that a local small region is damaged, the whole disposal is not needed, and the use economy of the floater is effectively improved.

The invention is further illustrated with reference to the following figures and examples.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the composition of a preferred embodiment of the present invention;

FIG. 3 is a schematic view of the end buoyancy module configuration of the present invention;

FIG. 4 is a schematic diagram of the buoyancy module configuration of the present invention;

figure 5 is a schematic diagram of the construction of the intermediate buoyancy module of the present invention.

The parts in the drawings are numbered as follows: 1. a slice longitudinal connecting device; 2. An end buoyancy module; 2.1, hoisting a groove; 3. adjusting the buoyancy module; 4. an external hoop device; 5. a mid-buoyancy module; 6. a buffer clamp; 7. fixing the fixture; 8. a dynamic flexible umbilical.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, a dynamic flexible pipe cable underwater floater comprises a piece-separating longitudinal connecting device 1, an end buoyancy module 2, a buoyancy adjusting module 3, an external hoop device 4, a middle buoyancy module 5, a buffering clamp 6 and a fixing clamp 7; the end buoyancy module 2 is a semicircular block body made of water pressure resistant foaming materials, the inner half rings of the end buoyancy module 2 are tapered half rings with gradually-changed inner diameters, the minimum inner diameter of the inner half rings of the end buoyancy module 2 is slightly larger than the outer diameter of the dynamic flexible pipe cable 8, 2 hoisting grooves with blind holes with certain depth are symmetrically arranged on the end surface of the end buoyancy module 2, annular grooves for installing external hoop devices 4 are arranged on the outer side vertical surfaces of the end buoyancy module 2, and the annular end buoyancy module is formed by tightly holding 2 bilaterally-symmetrical end buoyancy modules 2 through the external hoop devices 4; the buoyancy adjusting module 3 is a semicircular block body made of water pressure resistant foaming materials, the inner diameter of a semicircular ring in the buoyancy adjusting module 3 is slightly larger than the outer diameter of the dynamic flexible pipe cable 8, an annular groove for installing an external hoop device 4 is formed in the vertical surface of the outer side of the buoyancy adjusting module 3, and the buoyancy adjusting module is formed by tightly holding 2 buoyancy adjusting modules 3 which are bilaterally symmetrical through the external hoop device 4; the middle buoyancy module 5 is a semicircular block body made of water pressure resistant foaming materials, an annular groove for installing an external hoop device 4 is formed in the vertical surface of the outer side of the middle buoyancy module 5, and the annular middle buoyancy module is formed by tightly holding 2 bilaterally symmetrical middle buoyancy modules 5 through the external hoop device 4; the high-strength steel belt provided with the connecting bolt is encircled by the external hoop device 4 in the annular grooves of the end buoyancy module 2, the adjusting buoyancy module 3 and the middle buoyancy module 5, the steel belt is tightly hooped by continuous necking through continuously screwing the bolt, and the 2 semi-annular buoyancy modules form the annular buoyancy modules. A buffer clamp 6 is arranged in the middle buoyancy module 5, the inner diameter of a semi-ring in the middle buoyancy module 5 is slightly smaller than the outer diameter of the buffer clamp 6, the middle buoyancy module 5 is clamped outside the buffer clamp 6 after being installed, the buffer clamp 6 is an arc-shaped semi-tile clamp manufactured by pouring polyurethane with certain elasticity, the buffer clamp 6 is provided with an inner groove sleeve, and the annular buffer clamp is formed by connecting 2 bilaterally symmetrical buffer clamps 6 through bolts; a fixing clamp 7 is arranged in the buffering clamp 6, the fixing clamp 7 is an arc half-tile clamp made of corrosion-resistant stainless steel, the fixing clamp 7 is provided with an inner hollow column sleeve, a shallow tooth socket is arranged in the sleeve, and the circular ring fixing clamp is formed by connecting 2 fixing clamps 7 which are bilaterally symmetrical through bolts; the buoyancy modules at the end parts of the circular rings are 2 groups and are respectively positioned at the two ends of the floater; the middle buoyancy modules of the circular rings are 1 group and are positioned in the middle of the floater; the circular ring buoyancy adjusting module is arranged between the circular ring end buoyancy module and the circular ring middle buoyancy module, the circular ring buoyancy adjusting module is used as a buoyancy adjusting part, and the number of the circular ring buoyancy adjusting modules is increased or decreased according to the required buoyancy; connecting holes are symmetrically formed in the end buoyancy module 2, the adjusting buoyancy module 3 and the middle buoyancy module 5, the end buoyancy module 2, the adjusting buoyancy module 3 and the middle buoyancy module 5 are respectively connected through the slicing longitudinal connecting device 1 to form a semi-cylindrical buoyancy module half tile, and a set of 2 symmetrical semi-cylindrical buoyancy module half tiles form a cylindrical buoyancy module through the external hoop device 4.

The using method of the invention is as follows:

calculating the installation position of a floater according to the arrangement form of the dynamic flexible pipe cable 8, completing floater assembly before launching water, fastening a fixing clamp 7 outside the dynamic flexible pipe cable 8, fastening a buffering clamp 6 outside the fixing clamp 7, assembling an end buoyancy module 2, an adjusting buoyancy module 3 and a middle buoyancy module 5 into 1 semi-cylindrical buoyancy module half tile through a slicing longitudinal connecting device 1, sleeving the semi-cylindrical buoyancy module half tile outside the buffering clamp 6, and fixedly connecting the 2 semi-cylindrical buoyancy module half tiles through an external hoop device 4 to form a cylindrical buoyancy module which is fixed outside the buffering clamp 6;

laying a dynamic flexible pipe cable 8, gradually pulling the floater into the water by the weight of the pipe cable in the water after the floater enters the water, and further sinking the floater into the water along with the entry of the pipe cable installed without the floater into the water; according to the designed buoyancy requirement, the buoyancy requirements of the buoyancy modules at different positions are different, and the buoyancy can be increased by increasing and adjusting the number of the buoyancy modules 3; if the floater is damaged due to accidental damage in the using process, the damaged buoyancy module can be replaced by underwater installation equipment or underwater operation of divers.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.