CN111874173B - Rotatable floating offshore pipeline truss - Google Patents
Rotatable floating offshore pipeline truss Download PDFInfo
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- CN111874173B CN111874173B CN202010759970.5A CN202010759970A CN111874173B CN 111874173 B CN111874173 B CN 111874173B CN 202010759970 A CN202010759970 A CN 202010759970A CN 111874173 B CN111874173 B CN 111874173B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
Abstract
The invention discloses a rotatable floating offshore pipeline truss, which comprises a buoyancy assembly, a connecting rod piece and a hinge piece, wherein the buoyancy assembly is constructed and expanded in a modularized manner by buoyancy adjustable points and connecting rods between nodes; the buoyancy adjustable point comprises a shell, a central air pipe is arranged in the shell, an elastic air bag is arranged between the shell and the central air pipe, an air inlet and an air outlet are arranged on the central air pipe, at least one end of the central air pipe is connected with an air source, and an air inlet and a water outlet are arranged on the shell; the expansion degree of the air bag is adjusted by adjusting the air intake and exhaust amount of the elastic air bag, so that the air intake and exhaust amount between the shell and the elastic air bag is adjusted, and further the buoyancy of the buoyancy adjustable point is adjusted; the connecting rod is connected with the buoyancy assembly through a hinge. The floating type pipeline truss is used for connecting the floating type central service platform and the aquaculture net cages and/or connecting the two aquaculture net cages during deep sea aquaculture, so that the floating type central service platform and the aquaculture net cages are stably and reliably connected, the pipelines and the pipelines can be connected through the floating type pipeline truss, and the floating type pipeline truss can adapt to the complex sea environment through the hinged parts.
Description
Technical Field
The invention belongs to the field of ocean engineering devices, particularly deep and open sea culture equipment, and particularly relates to a rotatable floating offshore pipeline truss.
Background
The excessive development of offshore mariculture in China already enables the bearing capacity of resource environment to reach or approach the upper limit, so that deep and open sea aquaculture is developed in offshore areas as an important means for constructing modern marine industrial systems, but two outstanding problems of wind wave resistance and benefit generation in deep and open sea aquaculture must be solved.
There are on average 28 typhoons per year in the northwest pacific and south china seas, with 7 typhoons on average affecting the coastlands of our country. Many extra-bay sea areas in China have high wind and wave heights and high seawater flow speed. In the marine culture development process of China, a high-density polyethylene (HDPE) floating net cage becomes leading equipment, but the problem of wind and wave resistance is not fundamentally solved.
In 2018, the world 'dark blue No. 1' of the largest full-submersible net cage built by Wushu ship weight engineering Limited company in Qingdao is launched into water in Qingdao, the circumference of the net cage is 180 meters, the aquaculture water body is 5 ten thousand cubic meters, the net cage is placed in a yellow sea cold water mass 130 seas away from a coastline, a 3000-ton work boat is anchored beside the net cage for long-term feeding every day, and 30 thousand salmon are cultured at one time. But the popularization of the method is severely restricted by extremely high manufacturing cost, so that small and medium-sized aquaculture enterprises are difficult to bear.
The problem of non-matching industrial chains becomes a great stumbling point for 'walking out' of deep and distant sea culture. The aquaculture in China is mainly a family type and small-scale production mode, no scale effect is formed, and equipment is difficult to support a large-scale production mode of deep and open sea aquaculture. Such as: the deep and open sea aquaculture net cage with the volume of tens of thousands of cubic meters needs to put in a large number of seeds with specifications at one time, and the net cage needs to process the capacity of processing thousands of tons of fish catches and the capacity of cold chain logistics transportation and market accommodation in a short period of time.
The traditional offshore marine cage culture mode is a (cage + working ship) mode, a plurality of culture cages are distributed in a sea area near the offshore area, the culture cages are fed and maintained by small working ships going to and from an onshore base for a plurality of times every day, and the culture mode is generally only suitable for small-scale non-intelligent traditional culture near the offshore area. However, as the cage culture moves to deep sea, a floating center service platform is generally built in the deep sea area to provide materials for the culture cages, and if the cage culture is carried out in the deep sea, the defects of feeding and maintenance of small workboats are shown, because large storms often exist in the deep sea area, the small workboats have poor storms resistance, and the stable feeding period is difficult to maintain.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a rotatable floating offshore pipeline truss which is used for connecting a floating central service platform and aquaculture net cages and/or connecting two aquaculture net cages to ensure that the two aquaculture net cages are stably and reliably connected, various pipelines and lines, such as water pipes, air pipes and strong and weak current circuit cables, can be connected through the floating pipeline truss, the arrangement of an articulated piece can ensure that the floating pipeline truss can integrally fluctuate up and down along the fluctuation of waves so as to counteract the fluctuation of the absolute distance between the connected floating central service platform and aquaculture net cages and the length change of the integral truss formed by the vertical distortion of the integral truss due to the waves, the buoyancy adjustment of a buoyancy component can effectively adapt to the complex environment on the sea surface and the positions of the floating central service platform and aquaculture net cages on the sea surface, the safety of the structure is guaranteed.
To achieve the above objects, according to one aspect of the present invention, there is provided a rotatable floating offshore pipeline truss, characterized by comprising a buoyancy module, a connection rod, and a hinge, wherein:
the buoyancy assembly is of a space truss structure and is modularly built and expanded by buoyancy adjustable points and connecting rods among nodes, the buoyancy adjustable points are arranged at the junctions of the connecting rods among the nodes and are thin-wall hollow spheres which are expanded compared with the connecting rods among the nodes and used for generating buoyancy required by the buoyancy assembly during working;
the buoyancy adjustable point comprises a shell, a central air pipe is arranged in the shell, an elastic air bag is arranged between the shell and the central air pipe, an air inlet and an air outlet are formed in the central air pipe, at least one end of the central air pipe is connected with an air source, and water inlets and water outlets are formed in the shell and outside the elastic air bag and can be communicated with an external water body where the central air pipe is located;
adjusting the expansion degree of the air bag by adjusting the air intake and exhaust amount of the elastic air bag so as to adjust the water intake and exhaust amount between the shell and the elastic air bag and further adjust the buoyancy of the buoyancy adjustable point;
the connecting rod piece is hinged with the buoyancy assembly through the hinge piece, so that the connecting rod piece can rotate relative to the buoyancy assembly.
Preferably, the connecting rod and the buoyancy module each have a plurality, and a plurality of the connecting rods are connected to each buoyancy module.
Preferably, the hinge is a universal connector.
Preferably, the central air duct acts as an internal reinforcing support structure for the housing.
Preferably, the central air pipe is communicated with the hollow internode connecting rod.
Preferably, a gas supply and discharge pipeline for connecting a gas source with the central gas pipe is arranged in the hollow internode connecting rod.
Preferably, the internodal linkage is replaced with a flexible joint.
Preferably, the two ends of the central air pipe are respectively provided with a connecting flange and a sealing pressure plate for being in sealing connection with the connecting rod between the nodes, one of the connecting flanges is provided with an air inlet and a corresponding air inlet valve, an air outlet and a corresponding air outlet valve, the air inlet and the air outlet are both communicated with one end of the central air pipe, the air inlet valve is communicated with an air source for air inlet, and the other connecting flange is provided with an air inlet and outlet port and an inlet and drain valve controlled by an external signal for water inlet and drain.
Preferably, the buoyancy assembly is anchored at a selected sea area.
Preferably, the truss member is hinged with a pipeline bracket, the pipeline bracket is provided with a plurality of positioning holes for threading pipelines, and the pipelines comprise circuit cables and/or feeding pipelines.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) the floating pipeline truss is used for connecting the floating central service platform and the aquaculture net cages and/or connecting the two aquaculture net cages during deep sea aquaculture to ensure that various pipelines and lines, such as water pipes, air pipes and strong and weak current circuit cables, can be connected through the floating pipeline truss, and the arrangement of the hinge piece can ensure that the floating pipeline truss can fluctuate up and down along with fluctuation of waves on the whole so as to offset fluctuation of the absolute distance between the connected floating central service platform and the aquaculture net cages and length change of the whole truss formed by vertical distortion of the whole truss due to the waves.
2) The buoyancy of the buoyancy component of the invention depends on the sphere diameter of the buoyancy adjustable point, and all or part of the buoyancy component can be anchored in a rough sea area range in a single point or multiple points, so that the moving range of the connecting direction of the whole pipeline truss is determined.
3) The pipeline bracket is provided with a group of positioning holes for installing and positioning the pipeline; typically, a positioning hole is provided with a pipeline with a similar (slightly smaller) diameter or a plurality of thinner pipeline assemblies. The pipeline bracket and the connecting rod piece are connected by a single point which can rotate around a horizontal shaft.
4) The connecting rod between the hollow nodes is used as an air supply channel of an air source, or the hollow space of the connecting rod between the nodes is used for arranging the air supply and exhaust pipelines between the air source and the central air pipe, so that the air supply and exhaust pipelines are well protected in the connecting rod between the nodes, and the air supply and exhaust pipelines are prefabricated in the connecting rod between the nodes for assembly in the whole manufacturing process of the maritime work equipment, so that the production efficiency is improved.
5) Because the buoyancy adjustable points are independently and uniformly distributed on each mechanical node of the buoyancy assembly, the supporting buoyancy corresponding to the floating offshore pipeline truss is generated for the whole floating offshore pipeline truss, and the stress distribution state of the whole floating offshore pipeline truss is improved.
6) Due to the independence between each buoyancy assembly, when the buoyancy of each buoyancy assembly fails, the overall buoyancy level of the whole floating offshore pipeline truss is still maintained above a safe level line, so that the buoyancy and the connection reliability of the floating offshore pipeline truss are ensured.
7) The floating offshore pipeline truss structure has the characteristics of light weight, high industrialization degree, high integral strength and rigidity, easiness in splicing and expansion, low investment cost and the like, and is suitable for manufacturing and construction. The strength and safety requirements can be completely met, the traditional large floating structure is replaced, the design, manufacturing and construction difficulty and cost are reduced, the construction period is shortened, the natural condition limit is reduced, and the maintenance is simple.
8) The buoyancy adjustable points are adopted to provide buoyancy and buoyancy adjustment for the floating offshore pipeline truss, so that the buoyancy adjustment can be completely finished in water, and the influence of offshore storms is avoided by utilizing the relatively calm underwater ocean current environment; the method can also be completed in a normal full-floating working state and an ultra-floating working state, for example, when sea storms are small, the method is more beneficial to matching the underwater buoyancy by utilizing the self gravity of the part above the sea surface, so that the posture of the floating offshore pipeline truss is better adapted to the position of the aquaculture net cage, and the sea surface condition is better adapted.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIGS. 3 and 4 are schematic views of different configurations of the conduit bracket of the present invention;
FIG. 5 is a schematic view of a flexible joint connection float assembly of the present invention;
FIG. 6 is a schematic view of a plurality of flexible joints connecting the float assemblies of the present invention;
FIG. 7 is a schematic view of a buoyancy adjustable point in the present invention;
FIG. 8 is a schematic illustration of the minimum buoyancy of the buoyancy adjustment points of the present invention;
FIG. 9 is a schematic illustration of the intermediate buoyancy of the buoyancy adjustment points of the present invention;
fig. 10 is a schematic view of the maximum buoyancy of the buoyancy adjustable point in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 10, a rotatable floating offshore pipeline truss is used for connecting a floating central service platform and a culture net cage and/or connecting two culture net cages during deep sea culture, and after the floating central service platform and the culture net cages are connected, the floating offshore pipeline truss, the floating central service platform and the culture net cages jointly form an intelligent new energy deep and open sea culture complex, the floating offshore pipeline truss comprises a buoyancy assembly 100, a connecting rod 200 and a hinge assembly 300, wherein:
the buoyancy assembly 100 is a space truss structure and is constructed and expanded in a modularized manner by buoyancy adjustable points 10 and internode connecting rods 12, wherein the buoyancy adjustable points 10 are arranged at the junctions of the plurality of internode connecting rods 12 and are thin-walled hollow spheres which are expanded compared with the internode connecting rods 12 and are used for generating buoyancy required by the operation of the buoyancy assembly 100;
the connecting rod 200 is hinged to the buoyancy module 100 by the hinge 300, so that the connecting rod 200 can rotate relative to the buoyancy module 100, and the hinge 300 can ensure that the connecting rod 200 can rotate at least around a horizontal axis.
Further, the connection rod 200 and the buoyancy module 100 are provided in plurality, and a plurality of connection rods 200 are connected to each buoyancy module 100, and each buoyancy module 100 is anchored at a selected sea area. The buoyancy of the buoyancy module 100 of the present invention depends on the spherical diameter of the buoyancy adjustable point 10, and all or part of the buoyancy module can be anchored at a single point or multiple points in a rough sea area, so that the moving range of the connection direction of the whole floating offshore pipeline truss is determined.
Further, the connecting rod 200 is hinged with a pipeline bracket 11, and the pipeline bracket 11 is provided with a plurality of positioning holes for threading pipelines, wherein the pipelines comprise circuit cables and/or feeding pipelines. A group of positioning holes are formed in the pipeline bracket and used for installing and positioning the pipeline; generally, a pipeline or a plurality of thin pipeline aggregates with similar (slightly smaller) diameter is installed at one positioning hole, and the pipeline bracket 11 and the connecting rod member 200 are connected by a single point which can rotate around a horizontal shaft.
Further, the hinge 300 is a universal connector, such as a universal joint, a universal ball joint, etc., so that the floating offshore pipeline truss can fluctuate up and down with the fluctuation of waves on the whole, and can also be twisted left and right in the horizontal direction, so as to counteract the fluctuation of the absolute distance between the connected floating central service platform and the aquaculture net cage, and the length change of the whole truss formed by the vertical twisting of the whole truss caused by the waves.
Further, the flexible joints 400 are used for replacing the connecting rods between the nodes, so that the two adjacent buoyancy adjustable points 10 have flexibility and can rotate relatively in a small range, the complex environment of the sea surface can be better adapted, and preferably, the flexible joints 400 between the two adjacent buoyancy adjustable points 10 can be provided in plurality.
Because the node buoyancy devices are independently and uniformly distributed on each mechanical node of the truss structure, the supporting buoyancy corresponding to the structure is generated on the whole structure, and the stress distribution state of the whole structure is improved.
Due to the independence between each buoyancy module 100, when the buoyancy of each buoyancy module 100 fails, the buoyancy level of the whole floating offshore pipeline truss is still maintained above a safe level line, so that the safety of the floating offshore pipeline truss is ensured.
The floating offshore pipeline truss structure has the characteristics of light weight, high industrialization degree, high integral strength and rigidity, easiness in splicing and expansion, low investment cost and the like, and is suitable for manufacturing and construction. The strength and safety requirements can be completely met, the design, manufacturing and construction difficulty and cost are reduced, the construction period is shortened, the natural condition limitation is reduced, and the maintenance is simple.
Considering the optimization of the mechanical properties and the material volume comparison of the buoyancy module 100, the preferred shape of the buoyancy adjustable point 10 is a hollow sphere, and the inside of the sphere cavity is a light gas or other light material. The center of the buoyancy adjustable point 10 is the center of the truss mechanical node. In a specific application, the buoyancy adjustable points 10 are combined in a form corresponding to a structural relationship and arranged according to a certain spatial rule, and then matched with the inter-node rods 12, so that the buoyancy assembly 100 can be built and expanded in a modular manner, for example, the buoyancy adjustable points 10 can be arranged on the sides or vertices of a polygon, and the buoyancy adjustable points 10 are connected through the inter-node rods 12, so as to form a large buoyancy module.
According to the buoyancy assembly 100 comprising the dense internode rods 12 and the expanded buoyancy adjustable points 10, the main body of the buoyancy assembly 100 effectively disperses structural stress generated in a working state and can keep the integrity of the overall structure under the condition of partial structural failure, so that the structural mechanical property of marine equipment is greatly improved, and the safety of the whole equipment is ensured. In addition, the main body of the dispersed dense steel structure has higher natural frequency, and is not easy to resonate with external working conditions, so that the fatigue limit of the structure is greatly improved, and the safe working life of the floating offshore pipeline truss is ensured.
The floating offshore pipeline truss structure has the characteristics of light weight, high industrialization degree, high integral strength and rigidity, easiness in splicing and expansion, manufacture and construction and the like. The truss structure has outstanding characteristics, and can be used for connecting a floating central service platform and a culture net cage when being introduced into ocean engineering along with the development of ocean technology.
In the marine environment, wave impact is the main control load of the structural design, and in order to effectively utilize the marine space and develop marine resources, the truss structure is introduced into the marine environment, and the finite element analysis and calculation of the truss structure model show that under the action of the marine environment load, the stress distribution of the whole structure is uniform, and the stress of the whole structure is reasonable; when the actual structure is designed, the specific engineering requirements are combined, the structure strength is ensured, the relation between the stress value and the allowable stress is processed, and measures such as changing the size parameters of local components and the like can be adopted to improve the effective bearing capacity of the structure.
Specifically, the buoyancy adjustable point 10 in the buoyancy module 100 of the present invention is disposed outside the intersection of the plurality of inter-node connecting rods 12 (one buoyancy adjustable point 10 may connect the plurality of inter-node connecting rods 12), and is a thin-walled hollow sphere that is enlarged compared to the inter-node connecting rods 12, so as to generate the buoyancy required in the operation of the offshore pipeline truss. In some specific application fields, the buoyancy is required to be adjusted at certain specific positions of the marine engineering equipment, and a device capable of dynamically adjusting the water-gas volume ratio can be additionally arranged inside a buoyancy adjustable point so as to realize the floating, diving, balancing and attitude adjustment of the whole equipment. By purposefully adjusting the buoyancy of the plurality or groups of buoyancy adjustable points, the draft or bearing capacity of the buoyancy assembly 100 in water can be adjusted, and the floating and submerging adjustment of the structure in water can be realized, such as the floating and submerging adjustment between a normal full-floating working state and a bottom working state.
In some specific application fields, the buoyancy of the buoyancy assembly 100 and the buoyancy of the floating offshore pipeline truss are adjusted in a mode of synchronously or distributively adjusting the buoyancy of at least part of buoyancy adjustable points 10 in the floating offshore pipeline truss, wherein the buoyancy adjustment can be completely finished in water, and the influence of sea storms is avoided by utilizing the underwater relatively calm ocean current environment; the method can also be completed in a normal full-floating working state and an ultra-floating working state, for example, when sea storms are small, the method is more beneficial to matching the underwater buoyancy by utilizing the self gravity of the part above the sea surface, so that the posture of the floating offshore pipeline truss is better adapted to the position of the aquaculture net cage, and the sea surface condition is better adapted.
The specific structural scheme of the buoyancy adjustable point 10 is that the buoyancy adjustable point 10 comprises a ball shell 101, a central air pipe 102 is arranged in the ball shell 101, an elastic air bag 103 is arranged between the ball shell 101 and the central air pipe 102, an air inlet and outlet 104 is arranged on the central air pipe 102, at least one end of the central air pipe 102 is connected with an air source, an air inlet and outlet 105 is arranged on the ball shell 101 and outside the elastic air bag 103, and the air inlet and outlet 105 can be communicated with an external water body where the air inlet and outlet is arranged; the shell at the two ends of the central air pipe 102 is provided with a connecting flange 106 and a sealing pressure plate 107 for being in sealing connection with the inter-node rod 12, the upper connecting flange is provided with an air inlet 108 and a corresponding air inlet valve 1081, an air outlet 109 and a corresponding air outlet valve 1091 which are all communicated with the upper end of the central air pipe 102, and the air inlet valve and the air outlet valve are communicated with an air source, such as a gas compression device (such as an air pump) or a spherical storage node for storing compressed air; of course, the intake and exhaust ports, the intake and exhaust valves controlled by external signals may all be combined into one; the air inlet and outlet 105 at the lower connecting flange is correspondingly provided with an inlet and outlet valve 1051 controlled by an external signal, and preferably also provided with an inlet filter 1010 between the external water body and the internal water body. The air bag expansion degree is adjusted by adjusting the air intake and exhaust amount of the elastic air bag 103, so that the air intake and exhaust amount between the ball shell 101 and the elastic air bag 103 is adjusted, and the buoyancy of the buoyancy adjustable point is adjusted. During operation, when the air inlet valve 1081 and the water inlet and outlet valve 1051 are opened simultaneously, compressed air enters the elastic air bag 103, the air bag expands, the volume is increased, water with corresponding volume is discharged into external water from the water inlet and outlet valve 1051, and then the buoyancy of the buoyancy adjustable point is increased. On the contrary, when the exhaust valve 1091 and the water inlet and drain valve 1051 are opened simultaneously, the pressure of the gas in the elastic air bag 103 is reduced, the air bag is contracted, the volume is reduced, the water with the corresponding volume enters the inner part of the buoyancy adjustable point from the water inlet and drain valve 1051, and the buoyancy of the buoyancy adjustable point is increased. In the above adjustment process, if the intake and exhaust valves and the intake and exhaust valves 1051 are closed at the same time, the ratio of water to gas inside the buoyancy adjustable point will be maintained in the state when the valves are closed, and the buoyancy of the buoyancy adjustable point is stabilized at the specific value adjusted at this time.
When the inside of the buoyancy adjustable point 10 is completely gas, the buoyancy of the buoyancy adjustable point 10 is the largest, when the gas pressure is reduced, water in the external water body gradually enters the inside of the sphere, the buoyancy of the buoyancy adjustable point 10 is reduced, and when the gas pressure is reduced, the water in the external water body is completely filled in the sphere, the buoyancy of the buoyancy adjustable point reaches the minimum.
Further, the central air tube 102 serves as an internal reinforcing support structure for the ball housing 101. Further, each of the central air pipes 102 in the buoyancy node 10 is disposed in a main force receiving direction of the respective spherical shell 101.
Further, the central air tube 102 is communicated with the hollow inter-node rod 12, and the hollow inter-node rod 12 itself serves as an air supply channel of an air source, so that the central air tube is suitable for the condition that the diameter of the inter-node rod 12, the length of an air path, the power of the air source and the like are matched with each other. If the matching condition is not good, further, the air supply and exhaust pipeline between the air source and the central air pipe 102 is arranged in the hollow space of the node-node rod 12, so that the air supply and exhaust pipeline is well protected in the node-node rod 12, and the air supply and exhaust pipeline is prefabricated in the node-node rod 12 to be assembled in the whole manufacturing process of the marine engineering equipment.
The invention can be used in deep sea areas, is connected with a floating central service platform and a culture net cage, bears various flexible pipelines, cables and the like, completely meets the strength requirement and safety of large floating structures, has mature design, low manufacturing and construction difficulty, short construction period and small entity structure investment, can be introduced into deep sea culture engineering, and can perfect an intelligent new energy deep and far sea culture complex.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A rotatable floating offshore pipeline truss comprising a buoyancy module (100), a connecting link (200), and a hinge (300), wherein:
the buoyancy assembly (100) is of a space truss structure and is constructed and expanded in a modularized mode through buoyancy adjustable points (10) and internode connecting rods (12), the buoyancy adjustable points (10) are arranged at the intersection of the plurality of internode connecting rods (12) and are thin-wall hollow spheres expanded compared with the internode connecting rods (12) and used for generating buoyancy required by the buoyancy assembly (100) during working;
the buoyancy adjustable point (10) comprises a shell (101), a central air pipe (102) is arranged in the shell (101), an elastic air bag (103) is arranged between the shell (101) and the central air pipe (102), an air inlet and outlet (104) is arranged on the central air pipe (102), at least one end of the central air pipe (102) is connected with an air source, the central air pipe (102) is communicated with the hollow node connecting rod (12), an air supply and exhaust pipeline for connecting the air source and the central air pipe (102) is arranged in the hollow node connecting rod (12), an air inlet and outlet (105) is arranged on the shell (101) and outside the elastic air bag (103), and the air inlet and outlet (105) can be communicated with an external water body where the air inlet and outlet (103) is arranged;
adjusting the expansion degree of the elastic air bag (103) by adjusting the air intake and exhaust amount of the elastic air bag (103), so as to adjust the water intake and exhaust amount between the shell (101) and the elastic air bag (103), and further adjust the buoyancy of the buoyancy adjustable point;
the connecting rod (200) is hinged with the buoyancy module (100) through the hinge (300) so that the connecting rod (200) can rotate relative to the buoyancy module (100).
2. The rotatable floating offshore pipeline truss of claim 1, wherein the connection links (200) and the buoyancy modules (100) are provided in plurality, and a plurality of connection links (200) are connected to each buoyancy module (100).
3. The rotatable floating offshore pipeline truss of claim 1, wherein the hinge (300) is a universal joint.
4. Rotatable floating offshore pipeline truss according to claim 1, wherein the central gas pipe (102) acts as an internal stiffening support structure for the hull (101).
5. Rotatable floating offshore pipeline truss according to claim 1, wherein flexible joints (400) are used in place of the internodal linkages (12).
6. The rotatable floating offshore pipeline truss device according to claim 1, wherein two ends of the central air pipe (102) are respectively provided with a connecting flange (106) and a sealing pressure plate (107) for being in sealing connection with the node connecting rod (12), one of the connecting flanges (106) is provided with an air inlet (108) and a corresponding air inlet valve (1081), an air outlet (109) and a corresponding air outlet valve (1091), the air inlet (108) and the air outlet (109) are both communicated with one end of the central air pipe (102), the air inlet valve is communicated with an air source for air inlet, and the other connecting flange (106) is provided with an air inlet and outlet (105) and an air inlet and outlet valve (1051) controlled by an external signal for water inlet and outlet.
7. The rotatable floating offshore pipeline truss of claim 1, wherein the buoyancy module (100) is anchored at a selected sea area.
8. Rotatable floating offshore pipeline truss according to claim 1, wherein the connecting rods (200) are hinged with pipeline brackets (11), the pipeline brackets (11) having a plurality of positioning holes (111) for threading a pipeline, wherein the pipeline comprises a circuit cable and/or a feeding pipeline.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1769134A (en) * | 2004-11-01 | 2006-05-10 | 袁晓纪 | Raft type floating type platform at sea |
| CH700217B1 (en) * | 2006-07-29 | 2010-08-31 | Suisse Electronique Microtech | Solar Platform |
| KR20150047194A (en) * | 2013-10-24 | 2015-05-04 | 현대중공업 주식회사 | Assistant buoyant apparatus for Semi-submersible Drilling Rig |
| CN103863529B (en) * | 2014-02-27 | 2016-03-16 | 马献林 | A type ocean float island and manufacture method thereof |
| CN104648624B (en) * | 2015-01-20 | 2017-01-25 | 上海海事大学 | Air bag girder type truss for large offshore platform |
| CN104843151A (en) * | 2015-04-06 | 2015-08-19 | 陈佳宇 | Offshore power generation platform formed by combining floating body units and installation method of offshore power generation platform |
| CN207354105U (en) * | 2017-05-19 | 2018-05-11 | 甘肃上航电力运维有限公司 | A kind of floatation type photovoltaic power station component |
| CN111891306B (en) * | 2020-07-31 | 2021-04-06 | 深圳埃吉尔海洋科技有限公司 | Modular space truss structure tension leg type offshore floating platform |
| CN111891305B (en) * | 2020-07-31 | 2021-03-12 | 深圳埃吉尔海洋科技有限公司 | Modularized offshore floating type self-adaptive vegetable planting platform |
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