CN113464374A - Dry-type cabin sled piece structure and pipe-line system suitable for many bases are sunk - Google Patents
Dry-type cabin sled piece structure and pipe-line system suitable for many bases are sunk Download PDFInfo
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- CN113464374A CN113464374A CN202110783866.4A CN202110783866A CN113464374A CN 113464374 A CN113464374 A CN 113464374A CN 202110783866 A CN202110783866 A CN 202110783866A CN 113464374 A CN113464374 A CN 113464374A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a dry type cabin prying block structure and a pipeline system suitable for sinking a multi-cylinder foundation, which comprise a multi-cylinder foundation and a dry type cabin prying block; the multi-cylinder foundation comprises three hollow cylinders with openings at the bottoms; the multi-cylinder foundation is used for carrying out mud entering operation on the seabed under the action of self weight when the multi-cylinder foundation is placed into seawater; a dry cabin prying block is arranged at the top of the multi-cylinder foundation; the dry-type cabin prying block is communicated with the inner space of each barrel through a water pipeline and is used for pumping out water in each barrel in the multi-barrel foundation when the barrels complete the mud entering operation on the seabed under the action of self weight, so that negative pressure is generated in the multi-barrel foundation, and the effect of gradually sinking is realized until each barrel goes deep into the seabed to a preset depth. The invention aims at safety, high efficiency and low cost, adopts a dry type cabin prying block structure to replace the prior underwater robot structure with high manufacturing cost, greatly reduces the sinking and installation cost of the multi-cylinder foundation and ensures that the multi-cylinder foundation is smoothly installed in place.
Description
Technical Field
The invention relates to the technical field of offshore wind power, in particular to a dry-type cabin prying block structure suitable for multi-cylinder foundation sinking and a pipeline system.
Background
At present, with the adjustment of global energy structures, all countries in the world push the clean and low-carbon development of energy systems to the utmost extent, and push low-carbon energy to replace high-carbon energy and renewable energy to replace fossil energy. Offshore wind power as clean energy has abundant resources and huge development potential, is close to urban load centers and is convenient to be consumed on the spot, so that the development of offshore wind power becomes an important strategic support for global energy structure transformation.
In recent years, offshore wind power in China is developed rapidly, however, development areas are mostly concentrated in offshore sea areas, the problem that limited resources are contended with offshore breeding, fishery fishing, transportation routes and the like is faced, and along with the increase of energy requirements, the development of offshore wind power in deep and far seas is increased inevitably.
Modern offshore wind generating set mainly includes a tower section of thick bamboo and sets up the aerogenerator at a tower section of thick bamboo top, and guarantees the key of wind generating set safety and normal operating and lie in: an offshore wind power foundation structure or so-called wind turbine foundation supporting a tower.
With the continuous improvement of the technical requirements, the offshore wind power foundation structure is diversified more and more, wherein the multi-cylinder foundation is used as one of the offshore wind power foundation forms, has the advantages of small steel consumption, high construction speed, low deepwater sensitivity and the like, and has wide application prospect.
At present, for sinking a multi-cylinder foundation, highly integrated equipment such as an underwater robot is mostly adopted, the construction cost and the installation cost are high, the installation cost of the multi-cylinder foundation is greatly increased, and the large-scale popularization and the use of the multi-cylinder foundation are not facilitated.
In addition, the use of multi-cylinder foundations in China is in the exploration stage, and penetration control technology is still not mature, so that further development of the multi-cylinder foundations is limited.
Disclosure of Invention
The invention aims to provide a dry type cabin prying block structure and a pipeline system suitable for multi-cylinder foundation sinking aiming at the technical defects in the prior art.
Therefore, the invention provides a dry type cabin prying block structure and a pipeline system suitable for sinking a multi-cylinder foundation, which comprise the multi-cylinder foundation and a dry type cabin prying block;
the multi-cylinder foundation comprises three hollow cylinders with openings at the bottoms;
the multi-cylinder foundation is used for carrying out mud entering operation on the seabed under the action of self weight when the multi-cylinder foundation is placed into seawater;
wherein, the top of the multi-cylinder foundation is provided with a dry cabin prying block;
the dry-type cabin prying block is communicated with the inner space of each barrel through a water pipeline and is used for pumping out water in each barrel in the multi-barrel foundation when the barrels complete the mud entering operation on the seabed under the action of self weight, so that negative pressure is generated in the multi-barrel foundation, and the effect of gradually sinking is realized until each barrel goes deep into the seabed to a preset depth.
Preferably, the multi-cylinder foundation is provided with a connecting line of the top center points of the three cylinder bodies to form an equilateral triangle;
the multi-cylinder foundation is provided with three cylinder bodies which are centrosymmetric with each other.
Preferably, the first arrangement of the dry cabin skid is as follows:
a dry type cabin prying block is arranged at the top of one barrel in the multi-barrel foundation;
the multi-cylinder foundation is connected with the dry-type cabin prying block through an upper blind flange and a lower blind flange;
for a multi-cylinder foundation, the top of one cylinder is welded with a lower blind flange;
an upper blind flange is welded at the bottom of the dry-type cabin prying block;
the upper blind flange and the lower blind flange are rigidly connected.
Preferably, the dry tank skid block comprises a hollow sealed dry tank shell;
wherein, the center position of the bottom of the dry-type cabin shell is welded with an upper blind flange;
wherein, the inner cavity of the dry-type cabin shell is provided with a suction pump;
a water inlet is arranged at the bottom of the suction pump;
a water outlet is arranged on the right side of the suction pump;
the water inlet is communicated with a connecting port at the upper end of the special-shaped four-way pipeline;
the lower end of the special-shaped four-way pipeline is provided with three connectors which are respectively communicated with the upper ends of three upper blind flange water pipeline connectors on the upper blind flange in a sealing way;
wherein, the middle part of the special-shaped four-way pipeline is provided with a special-shaped three-way pipeline mounting opening;
the special-shaped three-way pipeline mounting port is hermetically communicated with a lower end connecting port of the special-shaped three-way pipeline;
the left end connector and the right end connector of the special-shaped three-way pipeline are respectively communicated with the water outlet of the suction pump and an inlet and an outlet reserved on the side wall of the dry-type cabin shell in a sealing way.
Preferably, the lower blind flange comprises a lower blind flange water pipeline interface and a bottom supporting structure;
the bottom supporting structure is welded to the top of one barrel in the multi-barrel foundation;
three vertically-through lower blind plate flange water pipeline connectors are arranged on the bottom supporting structure;
when the upper blind flange and the lower blind flange are rigidly connected, the upper ends of the water pipeline interfaces of the three lower blind flanges are correspondingly communicated with the lower ends of the water pipeline interfaces of the three upper blind flanges on the upper blind flange in a sealing way;
the lower ends of the three lower blind flange water pipeline interfaces are respectively communicated with one ends of the three water pipelines through a connecting pipeline;
the other ends of the three water pipelines are respectively communicated with the reserved openings at the tops of the three cylinders in a sealing way.
Preferably, a fourth electric valve is mounted on a connecting port at the upper end of the special-shaped four-way pipeline;
a first electric valve, a second electric valve and a third electric valve are respectively arranged on three connecting ports arranged at the lower end of the special-shaped four-way pipeline;
a fifth electric valve is arranged on a right end connecting port of the special-shaped three-way pipeline;
and a sixth electric valve is arranged on a lower end connecting port of the special-shaped three-way pipeline.
Preferably, for three barrels included by the multi-barrel foundation, the top center positions of any two adjacent barrels are respectively connected through a multi-barrel foundation connecting structure;
the water pipeline is positioned between any two adjacent cylinders and correspondingly laid in the multi-cylinder foundation connecting structure.
Preferably, the second setting of the dry cabin skid is as follows:
the top of each barrel in the multi-barrel foundation is provided with a dry-type cabin prying block respectively;
each dry type cabin prying block comprises a hollow sealed dry type cabin shell;
an upper blind flange is welded at the center of the bottom of the dry-type cabin shell;
wherein, the inner cavity of the dry-type cabin shell is provided with a suction pump;
a water inlet is arranged at the bottom of the suction pump;
a water outlet is arranged on the right side of the suction pump;
the water inlet is hermetically communicated with the upper end of an upper blind flange water pipeline interface on the upper blind flange through a first connecting pipeline;
the water outlet is hermetically communicated with an inlet and an outlet reserved on the side wall of the dry-type cabin shell through a second connecting pipeline;
the middle part of the first connecting pipeline is hermetically communicated with the middle part of the second connecting pipeline through a third connecting pipeline;
at the moment, for the multi-cylinder foundation, the top of each cylinder body is respectively welded with a lower blind flange;
each lower blind flange comprises a vertically through lower blind flange water pipeline interface;
each upper blind flange is respectively and correspondingly and rigidly connected with one lower blind flange, and the upper end of the water pipeline interface of the lower blind flange on the lower blind flange is correspondingly and hermetically communicated with the lower end of the water pipeline interface of the upper blind flange on the upper blind flange;
the lower end of each lower blind flange water pipeline interface is communicated with one end of a water pipeline through a connecting pipeline respectively;
the other end of each water pipeline is respectively communicated with a reserved opening at the top of one cylinder in a sealing way;
for three barrels included by the multi-barrel foundation, the top center positions of any two adjacent barrels are connected through a multi-barrel foundation connecting structure respectively.
Preferably, a grouting interface is arranged at the top of each cylinder;
the grouting interface is used for performing grouting operation when the cylinder body sinks to a preset distance from the top cover of the cylinder body to the seabed level;
the periphery of the bottom of the dry-type cabin shell is provided with a plurality of vertically distributed supporting legs in a surrounding manner;
a plurality of slings are arranged around the periphery of the top of the dry-type cabin shell;
for three cylinders included by the multi-cylinder foundation, the top of each cylinder is respectively welded with a plurality of prying block positioning bell mouths;
the prying block positioning bellmouths are arranged corresponding to the supporting legs at the bottom of the dry-type cabin shell;
each prying block positioning bell mouth is provided with an inner cavity with an opening at the top;
the supporting legs are inserted into the inner cavity of the prying block positioning bell mouth;
the method for judging whether the multi-cylinder foundation completes the mud entering operation to the seabed under the action of self weight comprises the following steps: when the air pressure in each cylinder of the multi-cylinder foundation is kept unchanged, the stress of a sling used for hoisting the multi-cylinder foundation is zero, and the multi-cylinder foundation does not sink any more, the multi-cylinder foundation is judged to have completed the mud entering operation to the seabed.
Preferably, the suction pump comprises a motor;
a water cooling block is arranged on the surface of a radiating fin on the motor;
a hollow water channel is arranged in the water cooling block;
one end of the water channel is communicated with the water inlet through a motor heat radiation water inlet pipeline;
the other end of the water channel is communicated with the water outlet through a motor heat dissipation water outlet pipeline.
Preferably, the following modes of operation are included:
firstly, a plurality of tube foundations enter water through hoisting equipment, seawater flows into an inner cavity of a tube body from an opening at the bottom of the tube body in the water entering process, at this time, air in the inner cavity of the tube body is extruded by the seawater and is exhausted outwards from an inlet and an outlet reserved on the side wall of a shell of a dry-type cabin through a pipeline in a prying block of the dry-type cabin until the seawater level completely does not have the plurality of tube foundations, and the plurality of tube foundations continue to sink in the seawater;
then, the cylinder body gradually enters the mud under the action of the dead weight, and when the dead weight of the multi-cylinder foundation is equal to the sinking resistance of the seabed to the multi-cylinder foundation, the mud does not continuously enter, and the dead weight mud entering operation of the seabed is completed;
and then, starting a suction pump in the dry-type cabin prying block, and pumping out seawater rushing in each barrel body in the multi-barrel foundation through a water pipeline to generate negative pressure in the multi-barrel foundation, so that the multi-barrel foundation gradually sinks until each barrel body penetrates into the seabed to a preset depth.
Compared with the prior art, the dry-type cabin prying block structure and the pipeline system suitable for sinking the multi-cylinder foundation are scientific in design, aim at safety, high efficiency and low cost, and greatly reduce the sinking and installing cost of the multi-cylinder foundation by replacing the high-cost existing underwater robot structure with the dry-type cabin prying block structure, ensure that the multi-cylinder foundation is smoothly installed in place, and have great production practice significance.
Drawings
FIG. 1 is a schematic view of an overall structure of a dry-type cabin skid structure and a piping system suitable for multi-barrel foundation sinking according to the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of a dry type cabin prying block structure suitable for multi-barrel foundation sinking in a dry type cabin prying block structure and a pipeline system provided by the invention;
FIG. 3 is a schematic view of a dry type cabin skid block according to an embodiment of the present invention, the installation of the dry type cabin skid block being suitable for a multi-barrel foundation sinking dry type cabin skid block structure and a pipeline system;
FIG. 4 is a schematic view of a lower blind flange according to a first embodiment of the present invention, which is applicable to a multi-barrel foundation sinking dry-type cabin skid structure and a pipeline system;
FIG. 5 is a schematic view of a water pipe valve according to an embodiment of the present invention, the water pipe valve being used in a multi-barrel base sinking dry-type cabin skid structure and a pipe system;
FIG. 6 is a schematic view of a barrel head water piping system according to an embodiment of the present invention, the barrel head water piping system being applicable to a multi-barrel base sinking dry-type cabin skid structure and piping system;
FIG. 7 is a schematic view of the inclination direction of a multi-cylinder foundation in a dry-type cabin skid structure and a pipeline system suitable for sinking the multi-cylinder foundation according to the present invention;
FIG. 8 is a schematic structural diagram of a second embodiment of a dry type cabin prying block structure suitable for multi-barrel foundation sinking in a dry type cabin prying block structure and a pipeline system provided by the invention;
fig. 9 is a schematic diagram of water-cooling heat dissipation of an underwater motor in a dry-type cabin prying block structure and a pipeline system suitable for multi-cylinder foundation sinking provided by the invention.
In the figure, 1-a multi-cylinder foundation, 11-a first cylinder, 12-a second cylinder, 13-a third cylinder;
2-a dry type cabin prying block, 21-a suction pump, 22-a water inlet, 23-a water outlet, 24-a special-shaped three-way pipeline and 25-a special-shaped four-way pipeline;
26-an umbilical, 27-a dry cabin shell, 28-support legs, 29-slings;
31-first electric valve, 32-second electric valve, 33-third electric valve, 34-fourth electric valve, 35-fifth electric valve; 36-sixth electrically operated valve;
4-upper blind flange; 41-upper blind flange water pipeline interface; 5-lower blind flange, 51-lower blind flange water pipeline interface, 52-bottom supporting structure;
6-positioning a bell mouth by a prying block; 7-water line; 71-first ball valve, 72-second ball valve, 73-third ball valve;
8-a multi-cylinder foundation connection structure; 91-suction pump interface, 92-standby pump interface and 93-grouting interface; 10-water cooling block; 210-motor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 9, the present invention provides a dry type cabin skid structure and a pipeline system suitable for sinking a plurality of bases, including a plurality of bases 1 and a dry type cabin skid 2;
the multi-cylinder foundation 1 comprises three hollow cylinders (cylindrical in shape) with openings at the bottoms (namely completely opened), and specifically comprises a first cylinder 11, a second cylinder 12 and a third cylinder 13;
a multi-cylinder foundation for performing a mud-entry operation into the seabed under the action of its own weight when placed in the sea water (e.g. by means of an external hoisting device);
wherein, the top of the multi-cylinder foundation 1 is provided with a dry cabin prying block 2;
the dry-type cabin sled piece 2 is communicated with the inner space of each barrel through a water pipeline 7 and is used for pumping out water in each barrel in the multi-barrel foundation 1 when the barrels complete the mud entering operation to the seabed under the action of dead weight (namely the dead weight of the multi-barrel foundation 1 is equal to the sinking resistance exerted by the seabed to the multi-barrel foundation 1), so that negative pressure is generated in the multi-barrel foundation 1, and sinking is realized until each barrel extends into the seabed to a preset depth (at the moment, the distance between a barrel top cover and the seabed plane is a preset distance, and the sum of the preset distance and the preset depth is equal to the height of the barrel).
It should be noted that the preset depth, which is slightly less than the vertical height of the cylinder in the multi-cylinder foundation 1, for example, a cylinder with a height of 20m, is sunk to a depth of 19.5m deep into the sea bed, and a top cover of 0.5m is left to contact the sea bed surface (i.e., the top surface of the sea bed). This 0.5m is used for accurate levelling of the multi-cylinder foundation 1, which is typically sealed by grouting after levelling is complete.
That is, the dry type cabin prying block 2 is used for providing negative pressure to assist the multi-cylinder foundation 1 to sink;
in the invention, in the concrete implementation, the connecting lines of the top center points of the three cylinder bodies of the multi-cylinder foundation 1 form an equilateral triangle. That is, the multi-cylinder foundation 1 has three cylinders which are centrosymmetric to each other.
It should be noted that, for the present invention, the three cylinders included in the multi-cylinder foundation 1 need to form a structure with stable structure, and the specific requirements are as follows: for three barrels included by the multi-barrel foundation 1, the top center positions of any two adjacent barrels are respectively connected through a multi-barrel foundation connecting structure 8.
The first embodiment.
For the present invention, the dry type cabin prying block 2 can be arranged on only one cylinder body in the multi-cylinder foundation 1. The concrete structure is as follows:
a dry type cabin prying block 2 is arranged at the top of one barrel in the multi-barrel foundation 1;
the multi-cylinder foundation 1 is connected with a dry type cabin prying block 2 through an upper blind flange 4 and a lower blind flange 5.
In the specific implementation, for the multi-cylinder foundation 1, a lower blind flange 5 is welded at the top of one cylinder body;
an upper blind flange 4 is welded at the bottom of the dry-type cabin prying block 2;
the upper blind flange 4 and the lower blind flange 5 are rigidly connected (for example, a bolt connection mode can be adopted);
the upper blind flange 4 and the lower blind flange 5 are both rigidly connected, and a connection sealing process is performed.
In a specific implementation, the dry type cabin prying block 2 comprises a hollow sealed dry type cabin shell 27;
it should be noted that the dry tank casing 27 is a sealed structure, and is rigid enough to resist deep water high pressure.
Wherein, a plurality of supporting legs 28 (not limited to four shown in fig. 3) distributed vertically are arranged around the bottom periphery of the dry chamber casing 27;
a plurality of slings 29 (not limited to the four illustrated in fig. 3, such as wire rope) are circumferentially provided around the top peripheral edge of the dry-chamber housing 27;
it should be noted that the support legs 28 are used for supporting the dry type cabin prying block 2, so that the dry type cabin prying block 2 is installed on the top of one barrel in the multi-barrel foundation 1. And the sling 29 is used for being matched with an external crane to hoist the dry-type cabin prying block 2.
Wherein, the center position of the bottom of the dry-type cabin shell 27 is welded with an upper blind flange 4;
wherein, the inner cavity of the dry-type cabin shell 27 is provided with a suction pump 21;
the bottom of the suction pump 21 is provided with a water inlet 22;
a water outlet 23 is arranged on the right side of the suction pump 21;
the water inlet 22 is communicated with a connecting port at the upper end of the special-shaped four-way pipeline 25;
the lower end of the special-shaped four-way pipeline 25 is provided with three connecting ports which are respectively communicated with the upper ends of three upper blind flange water pipeline interfaces 41 on the upper blind flange 4 in a sealing way;
wherein, the middle part of the special-shaped four-way pipeline 25 is provided with a special-shaped three-way pipeline mounting opening;
the special-shaped three-way pipeline mounting port is hermetically communicated with a lower end connecting port of the special-shaped three-way pipeline 24;
the special-shaped three-way pipeline 24 is provided with a left end connecting port and a right end connecting port which are respectively communicated with the water outlet 23 of the suction pump 21 and an inlet and outlet reserved on the side wall of the dry-type cabin shell 27 in a sealing way;
it should be noted that an inlet and outlet reserved on the side wall of the dry type cabin shell 27 is communicated with the external environment.
It should be noted that, in the present invention, both the water inlet 22 and the water outlet 23 are connected to a special-shaped three-way pipeline 24, and the special-shaped three-way pipeline 24 is connected to a special-shaped four-way pipeline 25, so that a complete water pumping and draining or air pumping and exhausting system can be formed in the dry type cabin shell 27.
In concrete implementation, a fourth electric valve 34 is arranged on a connecting port at the upper end of the special-shaped four-way pipeline 25;
the first electric valve 31, the second electric valve 32 and the third electric valve 33 are respectively arranged on three connecting ports arranged at the lower end of the special-shaped four-way pipeline 25.
In concrete implementation, a fifth electric valve 35 is installed on a right end connecting port of the special-shaped three-way pipeline 24;
and a sixth electric valve 36 is arranged on a lower end connecting port of the special-shaped three-way pipeline 24.
It should be noted that, based on the six electric valves installed on the special-shaped three-way pipeline 24 and the special-shaped four-way pipeline 25, the opening degree of each valve can be changed through a land control system (for example, an existing electromagnetic valve controller), so as to control the water or gas pumping rate of different pipelines, thereby realizing the sinking leveling control of different cylinders in the multi-cylinder foundation 1.
In particular, the suction pump 21 is connected to an external power supply via an umbilical cable 26.
It should be noted that the suction pump 21 may be powered by an umbilical 26 connected to a land-based power supply. The umbilical 26 is used to provide a source of electrical power to the suction pump 21.
In a specific implementation, referring to fig. 4, the lower blind flange 5 includes a lower blind flange water pipe joint 51 and a bottom support structure 52;
a bottom support structure 52 welded to the top of one of the drums of the multi-drum foundation 1;
three vertically-through lower blind flange water pipe joints 51 are arranged on the bottom supporting structure 52;
when the upper blind flange 4 is rigidly connected with the lower blind flange 5, the upper ends of the three lower blind flange water pipeline interfaces 51 are correspondingly and hermetically communicated with the lower ends of the three upper blind flange water pipeline interfaces 41 on the upper blind flange 4;
the lower ends of the three lower blind flange water pipeline connectors 51 are respectively communicated with one end of the three water pipelines 7 through a connecting pipeline;
the other ends of the three water pipelines 7 are respectively communicated with the reserved openings at the tops of the three cylinders in a sealing way.
It should be noted that the first ball valve 71, the second ball valve 72 and the third ball valve 73 are respectively mounted on the connecting pipes connected to the lower ends of the three lower blind flange water pipe joints 51. After the multi-barrel foundation 1 is installed in place and the dry cabin skid 2 is hoisted and retrieved, the three water lines 7 can be closed by the subsea operator by closing the first ball valve 71, the second ball valve 72 and the third ball valve 73.
In the specific implementation, for three barrels included in the multi-barrel foundation 1, the top center positions of any two adjacent barrels are respectively connected through a multi-barrel foundation connecting structure 8;
the water pipe 7 is laid in the multi-cylinder basic connection structure 8 at the part between any two adjacent cylinders.
In a specific implementation, the multi-cylinder foundation connection structure 8 may be, for example, a steel pipe with a hollow interior.
It should be noted that, because the water pipeline 7 is laid in the multi-cylinder foundation connecting structure 8, the overall structural rigidity between the water pipelines 7 is indirectly increased, and the driving effect of the water pipeline on the adjacent cylinders and the interaction between the pipelines in the process of sucking the negative pressure to a single cylinder are reduced, so that the leveling controllability and accuracy of the multi-cylinder foundation 1 are increased, and the leveling work of the multi-cylinder foundation is facilitated.
In particular, for three cylinders included in the multi-cylinder foundation 1, a suction pump interface 91, a standby pump interface 92 and a grouting interface 93 are arranged at the top of each cylinder at intervals;
the suction pump interface 91 is communicated with the water inlet 22 at the bottom of the suction pump 21 sequentially through the water pipeline 7, the lower blind flange water pipeline interface 51 on the lower blind flange 5, the three upper blind flange water pipeline interfaces 41 on the upper blind flange 4 and the special-shaped four-way pipeline 25.
It should be noted that the suction pump port 91 is directly in sealed communication with the other end of the water pipe 7. The top of each cylinder is provided with a suction pump interface 91, a standby pump interface 92 and a grouting interface 93 for assisting the sinking installation work of the multi-cylinder foundation.
In the present invention, it should be noted that the suction pump port 91 is used to connect with the corresponding water pipe 7, and water in the cartridge can be sucked out through the suction pump port 91.
In the present invention, the backup pump interface 92 functions as: when the suction pump connector 91 is blocked or damaged, the connector can be used as a substitute connector to avoid the difficulty in continuing the operation.
In the present invention, the grouting port 93 is used for grouting operation when the cylinder body is sunk to a preset distance (for example, 0-0.5m) from the top cover of the cylinder body to the seabed level, and in general engineering, the top of the cylinder body is not sunk to the bottom continuously, and grouting is performed into the cylinder body to achieve a sealing and reinforcing effect. The grout joint 93, which is used to connect the grout pipe on the land-based grouting equipment (e.g., a grout injector), helps complete the installation of the entire cylinder.
When the cylinder sinks to a preset distance (e.g. 0-0.5m) from the top of the cylinder to the seabed, it will not continue to sink the top of the cylinder to the bottom because: when the barrel body is sunk under the action of negative pressure, the barrel body is not sunk until the barrel top cover contacts the sea bed surface generally, a little margin is left, and the accurate leveling and other work are facilitated. For example, a 20m high can sink to 19.5m high (i.e. submerge 19.5m into the seabed), leaving 0.5m of can top to contact the surface of the seabed. This 0.5m is typically sealed by grouting.
In particular, for three cylinders included in the multi-cylinder foundation 1, a plurality of prying block positioning bellmouths 6 (not limited to four ones shown in fig. 3) are welded to the top of each cylinder;
a plurality of pry block positioning bellmouths 6 which are arranged corresponding to the supporting legs 28 at the bottom of the dry-type cabin shell 27;
each prying block positioning bell mouth 6 is provided with an inner cavity with an opening at the top;
the supporting legs 28 are inserted into the inner cavity of the pry block positioning bell mouth 6;
it should be noted that, sled piece location horn mouth 6 can be including restricting supporting leg 28, and sled piece location horn mouth 6 upper portion horn structure has the guide effect, realizes the accurate location of dry-type cabin sled piece 2. The bellmouth is used for guiding and limiting the supporting leg.
In a specific implementation, the suction pump 21 includes a motor 210;
the surface of the radiating fin on the motor 210 is provided with a water cooling block 10;
the water cooling block 10 is internally provided with a hollow water channel;
one end of the water channel is communicated with the water inlet 22 through a motor heat radiation water inlet pipeline 211;
the other end of the water channel is communicated with the water outlet 23 through a motor heat dissipation water outlet pipeline 212.
It should be noted that, for the present invention, the motor 210 is an indispensable part of the suction pump 21, if the motor 210 burns out, the suction pump 21 will stop working, and considering the underwater heat dissipation of the motor, the branch pipelines of the water inlet 22 and the water outlet 23 of the suction pump are communicated with the water cooling block 10, and the water channel is left inside the water cooling block 10 and contacts with the heat sink on the surface of the motor. When the suction pump starts to work, the water pressure at the water inlet 22 is high, a part of the water is pumped into the water cooling block 10 through the pipeline, and the flowing water in the water cooling block takes away the heat of the motor 210 and flows out through the water outlet 23.
In particular, the water cooling block 10 is preferably made of copper, which is beneficial to heat dissipation of the motor 210. The present invention is not limited to the above-described embodiments.
Example two.
The dry type cabin prying blocks 2 can be in various forms, for example, as shown in fig. 8, a mode of one cylinder and one prying block is adopted, each dry type cabin prying block 2 controls one cylinder, the pipeline is prevented from being laid, the structure is simple, and sinking installation work of a multi-cylinder foundation is facilitated.
That is, for the present invention, a dry cabin skid 2 may be disposed on each of the cylinders of the multi-cylinder foundation 1. The concrete structure is as follows:
the top of each barrel in the multi-barrel foundation 1 is respectively provided with a dry-type cabin prying block 2;
each dry bay skid 2, comprising a hollow sealed dry bay casing 27;
it should be noted that the dry tank casing 27 is a sealed structure, and is rigid enough to resist deep water high pressure.
An upper blind flange 4 is welded at the center of the bottom of the dry-type cabin shell 27;
wherein, the inner cavity of the dry-type cabin shell 27 is provided with a suction pump 21;
the bottom of the suction pump 21 is provided with a water inlet 22;
a water outlet 23 is arranged on the right side of the suction pump 21;
the water inlet 22 is in sealed communication with the upper end of one upper blind flange water pipeline interface 41 (only one upper blind flange water pipeline interface 41 is arranged) on the upper blind flange 4 through a first connecting pipeline 221;
the water outlet 23 is hermetically communicated with an inlet and an outlet reserved on the side wall of the dry-type cabin shell 27 through a second connecting pipeline 222;
the middle part of the first connection pipe 221 is in sealed communication with the middle part of the second connection pipe 222 through a third connection pipe 223;
at the moment, for the multi-cylinder foundation 1, the top of each cylinder body is respectively welded with a lower blind flange 5;
each lower blind flange 5 comprises a vertically through lower blind flange water pipeline interface 51 (only one lower blind flange water pipeline interface 51 is arranged);
each upper blind flange 4 is respectively and correspondingly and rigidly connected with one lower blind flange 5, and the upper end of a lower blind flange water pipeline interface 51 on the lower blind flange 5 is correspondingly and hermetically communicated with the lower end of an upper blind flange water pipeline interface 41 on the upper blind flange 4;
the lower end of each lower blind flange water pipeline interface 51 is communicated with one end of a water pipeline 7 through a connecting pipeline respectively;
the other end of each water line 7 is in sealed communication with a reserved opening (e.g., suction pump port 91) in the top of one of the cylinders.
In the second embodiment, a ball valve is respectively installed at the connection between the first connection pipe 221 and the upper blind flange 4, the connection between the second connection pipe 222 and the inlet/outlet reserved on the sidewall of the dry-type cabin casing 27, and the middle of the third connection pipe 223.
In the second embodiment, for three barrels included in the multi-barrel foundation 1, the top center positions of any two adjacent barrels are respectively connected through a multi-barrel foundation connecting structure 8. The multi-cylinder foundation connection structure 8 may be, for example, a steel pipe with a hollow interior.
In the second embodiment, as in the first embodiment, a plurality of vertically distributed support legs 28 (not limited to four as shown in fig. 3) are circumferentially arranged around the bottom of the dry type cabin casing 27;
a plurality of slings 29 (not limited to the four illustrated in fig. 3, such as wire rope) are circumferentially provided around the top peripheral edge of the dry-chamber housing 27.
It should be noted that the support legs 28 are used for supporting the dry type cabin prying block 2, so that the dry type cabin prying block 2 is installed on the top of one barrel in the multi-barrel foundation 1. And the sling 29 is used for being matched with an external crane to hoist the dry-type cabin prying block 2.
In the second embodiment, as in the first embodiment, for three cylinders included in the multi-cylinder foundation 1, a plurality of pry block positioning bellmouths 6 (not limited to four as shown in fig. 3) are welded on the top of each cylinder respectively
A plurality of pry block positioning bellmouths 6 which are arranged corresponding to the supporting legs 28 at the bottom of the dry-type cabin shell 27;
each prying block positioning bell mouth 6 is provided with an inner cavity with an opening at the top;
the supporting legs 28 are inserted into the inner cavity of the pry block positioning bell mouth 6;
it should be noted that, sled piece location horn mouth 6 can be including restricting supporting leg 28, and sled piece location horn mouth 6 upper portion horn structure has the guide effect, realizes the accurate location of dry-type cabin sled piece 2. The bellmouth is used for guiding and limiting the supporting leg.
In particular, in the second embodiment, the same as the first embodiment, the water-cooling structure design of the motor shown in fig. 9 is also provided, and details are not repeated herein.
In order to more clearly understand the present invention, the following description describes the dry-type cabin skid structure and the pipeline system suitable for multi-barrel foundation sinking, which mainly include the following working modes:
firstly, the multi-cylinder foundation 1 enters water through hoisting equipment, seawater flows into an inner cavity of the cylinder from an opening at the bottom of the multi-cylinder foundation 1, at this time, air in the inner cavity of the cylinder is extruded by the seawater and is exhausted outwards from an inlet and an outlet reserved on the side wall of a dry-type cabin shell 27 through a pipeline inside a dry-type cabin prying block 2 until the seawater level completely does not contain the multi-cylinder foundation 1, and the multi-cylinder foundation 1 continuously sinks in the seawater;
then, the cylinder body gradually enters the mud under the action of the dead weight, and when the dead weight of the multi-cylinder foundation 1 is equal to the sinking resistance of the seabed to the multi-cylinder foundation 1, the mud does not continuously enter, and the dead weight mud entering operation of the seabed is completed;
then, the corresponding valves are opened and closed (wherein in the first embodiment, the first electric valve 31, the second electric valve 32, the third electric valve 33, the fourth electric valve 34 and the fifth electric valve 35 are opened, and the sixth electric valve 36 is closed, and in the second embodiment, the ball valve of the third connecting pipeline 223 is closed, and the ball valves of the first connecting pipeline 221 and the second connecting pipeline 222 are opened), then the suction pump 21 in the dry-type cabin prying block 2 is started, seawater flowing in each cylinder body in the multi-cylinder foundation 1 is pumped out through the water pipeline 7, so that negative pressure is generated in the multi-cylinder foundation 1, and the gradual sinking is realized until each cylinder body penetrates into the seabed to the preset depth.
It should be noted that, when the seawater in the cylinder is pumped by the suction pump 21, the seawater is gradually pumped out from the cylinder, the pressure in the cylinder is reduced, that is, a negative pressure is generated, and the pressure inside and outside the cylinder continuously presses the cylinder downwards and finally the cylinder is completely inserted into the seabed (that is, the top cover of each cylinder contacts the top plane of the seabed).
Based on the dry type cabin prying block structure and the pipeline system suitable for sinking of the multi-cylinder foundation, the invention also provides a sinking leveling control method suitable for the multi-cylinder foundation, namely, based on the dry type cabin prying block structure and the pipeline system, the multi-cylinder foundation can also adopt the following sinking leveling control mode, and the method specifically comprises the following steps:
step one, sinking in water: hoisting the multi-cylinder foundation 1 to a designated installation site through existing hoisting equipment (such as a crane and a crane), enabling the multi-cylinder foundation 1 to enter water, opening the first electric valve 31, the second electric valve 32, the third electric valve 33, the fifth electric valve 35 and the sixth electric valve 36, closing the fourth electric valve 34, and simultaneously opening the first ball valve 71, the second ball valve 72 and the third ball valve 73 (sinking under the self-weight action of the multi-cylinder foundation in the process without starting a suction pump), so that the multi-cylinder foundation 1 is exhausted and sinks slowly;
it should be noted that, in the first step, in the process of sinking the multi-cylinder foundation 1 in water, the opening degree of the electric valves corresponding to different cylinders can be changed, and the air displacement of different cylinders can be controlled, so that the multi-cylinder foundation 1 can be guaranteed to sink stably.
Step two, self-weight sinking: the self-weight of the multi-cylinder foundation 1 overcomes the sinking resistance and enters the mud.
In the second step, the method for judging whether the multi-cylinder foundation 1 finishes the operation of entering the seabed under the action of self weight comprises the following steps: when the air pressure in each cylinder of the multi-cylinder foundation 1 is kept unchanged, the stress of a sling 29 (such as a steel wire rope) for hoisting the multi-cylinder foundation 1 is zero, and the multi-cylinder foundation does not sink any more, the multi-cylinder foundation 1 is judged to have completed the mud feeding operation to the seabed under the action of self weight.
In the second step, the respective electric valves are similarly kept in the open state (i.e., the first electric valve 31, the second electric valve 32, the third electric valve 33, the fifth electric valve 35, and the sixth electric valve 36 are opened, and the fourth electric valve 34 is closed) during the self-weight sinking of the multi-cylinder foundation 1.
Thirdly, sinking under negative pressure: when the dead weight of the multi-cylinder foundation 1 is equal to the sinking resistance applied to the multi-cylinder foundation 1 by the seabed (namely, when the multi-cylinder foundation 1 completes the mud entering operation to the seabed through the dead weight), in order to increase the soil entering depth of the multi-cylinder foundation 1, the negative pressure sinking is realized by virtue of the dry type cabin prying block structure and the water pumping system provided by the invention.
Referring to fig. 7, for ease of analysis, the tilt directions are specified as shown in fig. 7: clockwise along the m-axis to an X tilt angle and clockwise along the n-axis to a Y tilt angle. For example, when the X inclination angle is positive, it means that the first cylinder 11 is high, the second cylinder 12 and the third cylinder 13 are low; when the inclination angle Y is positive, it means that the third cylinder 13 is low and the second cylinder 12 is high.
It should be noted that, for the present invention, the m-axis and the n-axis are taken for convenience of description, the n-axis is an axis perpendicular to the central line of the second cylinder 12 and the third cylinder 13 and passing through the center of the first cylinder 11, and the m-axis is an axis perpendicular to the n-axis.
The X-tilt angle and the Y-tilt angle are defined as tilt angles, and are also taken for convenience of description and distinction, which means that the multi-cylinder foundation 1 is tilted in which direction, clockwise rotation around the m-axis is the X-positive direction, and clockwise rotation around the n-axis is the Y-positive direction.
According to fig. 2, the first to fifth electric valves 31 to 35 are opened, and the electric valve 36 is confirmed to be closed; the opening of the electric valves of the water pumping pipes connected with the three cylinders is the same, so that the same pressure difference is applied to the three cylinders. In the sinking process, the inclination angle of the multi-cylinder foundation 1 is continuously monitored, and the Y inclination angle is judged firstly, wherein the Y inclination angle needs to be smaller than the inclination angle Y' specified by the standard (namely the design rule of the foundation base of the wind turbine generator set of the hydropower engineering design institute) and the leveling controllable inclination angle threshold value YcrOtherwise, leveling will be achieved by increasing or decreasing the negative pressure in the cylinder, depending on the tilt direction. And after the Y dip angle meets the requirement, the X dip angle is judged, and the subsequent operation and control processes are the same. When the X, Y inclination angles meet the requirements, the multi-cylinder foundation 1 continues to sink until the designed depth is reached; wherein the design depth is the expected and designed depth of the multi-cylinder foundation inserted into the seabed before the multi-cylinder foundation is sunk for construction. For example, the barrel may be 20m high and the design depth may be 19.5m, leaving 0.5m of grout. The design depth is determined according to a construction party of a specific engineering project.
In the present invention, in a specific implementation, an inclination angle sensor may be installed through a top and other parts of each cylinder, and an inclination angle of each cylinder in the multi-cylinder foundation 1 is monitored (acquired) by the inclination angle sensor. The data of the tilt sensor can be collected and transmitted to a land centralized control center through a collecting instrument. The tilt angles are the X tilt angle and the Y tilt angle.
In the invention, the inclination angle Y' specified by the specification of foundation design regulation of the wind turbine generator is the maximum inclination angle allowed by the specification, and if the inclination angle is exceeded, the foundation is considered to be failed to be installed.
In the present invention, the controllable inclination angle threshold value Y is leveledcrFor maximum adjustable angle, beyond which angle of inclination, bySuction of negative pressure (i.e. water in the cartridge) can no longer level the foundation. Possible reasons include: 1. the inclination is too large and the negative pressure generated by suction is not sufficient to adjust the foundation to a level condition. 2. The inclination angle is too large, larger negative pressure leveling is needed, the foundation soil body is damaged by infiltration due to the too large negative pressure, and the foundation soil body is damaged when the inclination angle is not leveled.
In the invention, considering that the improper application of negative pressure causes the seepage damage of foundation soil, the buckling damage of a foundation structure and the like, thereby causing the failure of the installation of the multi-cylinder foundation, the upper limit of negative pressure control such as the seepage damage critical negative pressure, the buckling critical negative pressure and the like needs to be calculated in advance. The larger the inclination angle of the multi-cylinder foundation is, the larger the negative pressure required for leveling is, and in the process of sinking, when the inclination angle of the multi-cylinder foundation is too large, the negative pressure required for leveling may exceed the critical negative pressure of the seepage damage of the soil body of the foundation, thereby causing the leveling failure. Leveling controllable inclination angle threshold value Xcr、YcrThe upper limit of the leveling inclination angle corresponding to the upper limit of the negative pressure control can be obtained through a construction early stage experiment or a digital analogy.
It should be noted that the leveling controllable inclination angle threshold value Xcr、YcrThe maximum adjustable angle in the preset X direction and the preset Y direction and the like are respectively set. For leveling controllable inclination angle threshold value Xcr、YcrThe two threshold values can be obtained through actual engineering experience, consult in scientific and technical paper, or perform a model test with a small scale in advance, that is, can be set in advance. For example, in sandy foundations, these two threshold sizes are recommended to be 3 ° for this type of multi-cylinder foundation, i.e. the inclination angle does not exceed 3 °.
In the invention, when the inclination angle of the multi-cylinder foundation 1 is smaller than the leveling controllable inclination angle threshold value Xcr、YcrIn the prior art, the leveling can be carried out by only adopting a method of sucking the negative pressure of the high-level cylinder;
once the inclination angle of the multi-cylinder foundation 1 reaches the leveling controllable inclination angle threshold value Xcr、YcrThe high-level cylinder is sucked and leveled by combining a method of filling water and jacking the low-level cylinder.
In the present invention, it should be noted that the high-position cylinder is a cylinder higher than the three cylinders included in the multi-cylinder foundation 1, that is, a cylinder tilted upward, in an inclined state. The lower cylinder, i.e. the cylinder that is the lower of the three cylinders. The leveling device is used for judging which direction leveling is performed and which leveling operation means is implemented to level the multi-cylinder foundation.
In particular, the method for pumping the negative pressure of the high-level cylinder body can be as follows: water in the cylinder at the higher position is pumped to generate negative pressure, so that the cylinder at the higher position continues to sink, and the multi-cylinder foundation reaches a horizontal state. The high-level cylinder is pumped by opening the valve on the water pipeline corresponding to the high-level cylinder.
In the concrete implementation, the method for water-filling and jacking the low-level cylinder body specifically comprises the following steps: and filling water into the barrel body at the bottom position, and jacking the barrel body at the bottom position, so that the multi-barrel foundation reaches a horizontal state. The bottom cylinder is filled with water by opening a valve on a water pipeline corresponding to the bottom cylinder.
In concrete implementation, the water pumping and filling operations are realized by a suction pump 21. The suction pump is a bidirectional pump.
Compared with the prior art, the dry type cabin prying block structure and the pipeline system suitable for multi-cylinder foundation sinking provided by the invention have the following beneficial effects:
1. the invention adopts a dry-type cabin prying block structure to replace an underwater robot, and the existing underwater robot has a complex structure and high construction cost;
2. the suction pump adopted by the invention is a submersible pump capable of bearing deep water high pressure, and has extremely strict requirements on the pump. The designed dry-type cabin prying block structure and the existence of the dry-type cabin prying block structure are beneficial to reducing the high-pressure resistance requirement of the deepwater construction environment on the suction pump, saving the cost of waterproof treatment on the suction pump, and ensuring the rigidity of the dry-type cabin structure only to be enough to resist the underwater pressure.
3. By reasonable pipeline design, the invention realizes the integration of water pumping and drainage and air pumping and exhausting in the sinking installation process of the multi-cylinder foundation, and avoids the increase of construction difficulty caused by excessive pipeline laying;
4. according to the invention, the barrel top water pumping pipeline is laid in the multi-barrel foundation connecting structure in advance, and the pipeline and the multi-barrel foundation connecting structure are integrated, so that the integrity of a pipeline system is enhanced, and the leveling error caused by interaction among the pipelines is favorably reduced.
5. Based on the invention, a sinking and leveling installation method suitable for a multi-cylinder foundation can be adopted, and various risk factors such as buckling, seepage damage and the like in the sinking and installation process of the multi-cylinder foundation are considered, so that the negative pressure required by foundation sinking is reasonably controlled, the real-time leveling in the sinking process of the foundation is realized, the foundation is ensured to be smoothly installed in place, and the requirements of designed inclination rate and designed bearing capacity are met.
Compared with the prior art, the dry-type cabin prying block structure and the pipeline system suitable for sinking the multi-cylinder foundation provided by the invention have the advantages that the design is scientific, the aims of safety, high efficiency and low cost are taken, the existing underwater robot structure with high manufacturing cost is replaced by the dry-type cabin prying block structure, the sinking and installation cost of the multi-cylinder foundation is greatly reduced, the smooth installation of the multi-cylinder foundation is ensured, and the production practice significance is great.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A dry type cabin prying block structure and a pipeline system suitable for sinking a multi-cylinder foundation are characterized by comprising a multi-cylinder foundation (1) and a dry type cabin prying block (2);
the multi-cylinder foundation (1) comprises three hollow cylinders with openings at the bottoms;
wherein, the top of the multi-cylinder foundation (1) is provided with a dry cabin prying block (2);
the multi-cylinder foundation (1) is used for carrying out mud entering operation on a seabed under the action of self weight when the multi-cylinder foundation is placed into seawater;
the dry-type cabin sled piece (2) is communicated with the inner space of each barrel through a water pipeline (7) and is used for pumping out water in each barrel in the multi-barrel foundation (1) when the barrels complete the mud entering operation to the seabed under the action of self weight, so that negative pressure is generated in the multi-barrel foundation (1), and the gradual sinking is realized until each barrel goes deep into the seabed to the preset depth.
2. The dry type cabin pry block structure and the pipeline system suitable for multi-cylinder foundation sinking as claimed in claim 1, wherein the multi-cylinder foundation (1) has a connection line of the top center points of three cylinders to form an equilateral triangle;
the multi-cylinder foundation (1) is provided with three cylinders which are centrosymmetric with each other.
3. The dry tank skid structure and the pipeline system suitable for multi-barrel foundation settlement as claimed in claim 1, wherein the first setting of the dry tank skid (2) is as follows:
a dry type cabin prying block (2) is arranged at the top of one barrel in the multi-barrel foundation (1);
the multi-cylinder foundation (1) is connected with the dry-type cabin prying block (2) through an upper blind flange (4) and a lower blind flange (5);
for the multi-cylinder foundation (1), a lower blind flange (5) is welded at the top of one cylinder body;
an upper blind flange (4) is welded at the bottom of the dry-type cabin prying block (2);
the upper blind flange (4) and the lower blind flange (5) are rigidly connected.
4. The dry tank skid structure and piping system for multi-barrel foundation settlement according to claim 3, wherein the dry tank skid (2) comprises a hollow sealed dry tank shell (27);
wherein, an upper blind flange (4) is welded at the center of the bottom of the dry-type cabin shell (27);
wherein, the inner cavity of the dry-type cabin shell (27) is provided with a suction pump (21);
a water inlet (22) is arranged at the bottom of the suction pump (21);
a water outlet (23) is arranged on the right side of the suction pump (21);
the water inlet (22) is communicated with a connecting port at the upper end of the special-shaped four-way pipeline (25);
the lower end of the special-shaped four-way pipeline (25) is provided with three connecting ports which are respectively communicated with the upper ends of three upper blind flange water pipeline interfaces (41) on the upper blind flange (4) in a sealing way;
wherein, the middle part of the special-shaped four-way pipeline (25) is provided with a special-shaped three-way pipeline mounting opening;
the special-shaped three-way pipeline mounting port is hermetically communicated with a lower end connecting port of the special-shaped three-way pipeline (24);
the left end connector and the right end connector of the special-shaped three-way pipeline (24) are respectively communicated with the water outlet (23) of the suction pump (21) and an inlet and an outlet reserved on the side wall of the dry-type cabin shell (27) in a sealing way.
5. The dry-type cabin skid structure and pipeline system suitable for multi-barrel foundation settlement according to claim 4, wherein the lower blind flange (5) comprises a lower blind flange water pipeline interface (51) and a bottom support structure (52);
a bottom support structure (52) welded to the top of one of the cylinders of the multi-cylinder foundation (1);
three vertically-through lower blind plate flange water pipeline interfaces (51) are arranged on the bottom supporting structure (52);
when the upper blind flange (4) is rigidly connected with the lower blind flange (5), the upper ends of the three lower blind flange water pipeline interfaces (51) are correspondingly and hermetically communicated with the lower ends of the three upper blind flange water pipeline interfaces (41) on the upper blind flange (4);
the lower ends of the three lower blind flange water pipeline interfaces (51) are respectively communicated with one ends of the three water pipelines (7) through a connecting pipeline;
the other ends of the three water pipelines (7) are respectively communicated with the reserved openings at the tops of the three cylinders in a sealing way.
6. The dry type cabin prying block structure and the pipeline system suitable for multi-barrel foundation sinking as claimed in claim 4, wherein a fourth electric valve (34) is mounted on a connecting port at the upper end of the special-shaped four-way pipeline (25);
a first electric valve (31), a second electric valve (32) and a third electric valve (33) are respectively arranged on three connecting ports arranged at the lower end of the special-shaped four-way pipeline (25);
wherein, a fifth electric valve (35) is arranged on a right end connecting port of the special-shaped three-way pipeline (24);
and a sixth electric valve (36) is arranged on a lower end connecting port of the special-shaped three-way pipeline (24).
7. The dry type cabin prying block structure and the pipeline system suitable for multi-cylinder foundation sinking as claimed in claim 5, wherein for three cylinders included in the multi-cylinder foundation (1), the top center positions of any two adjacent cylinders are respectively connected through a multi-cylinder foundation connecting structure (8);
the water pipeline (7) is positioned between any two adjacent cylinders and correspondingly laid in the multi-cylinder basic connecting structure (8).
8. The dry tank skid structure and the pipeline system suitable for multi-barrel foundation settlement as claimed in claim 1, wherein the second setting of the dry tank skid (2) is as follows:
the top of each barrel in the multi-barrel foundation (1) is respectively provided with a dry-type cabin prying block (2);
each dry bay skid (2) comprising a hollow sealed dry bay casing (27);
an upper blind flange (4) is welded at the center of the bottom of the dry-type cabin shell (27);
wherein, the inner cavity of the dry-type cabin shell (27) is provided with a suction pump (21);
a water inlet (22) is arranged at the bottom of the suction pump (21);
a water outlet (23) is arranged on the right side of the suction pump (21);
the water inlet (22) is communicated with the upper end of an upper blind flange water pipeline interface (41) on the upper blind flange (4) in a sealing way through a first connecting pipeline (221);
the water outlet (23) is communicated with an inlet and an outlet reserved on the side wall of the dry-type cabin shell (27) in a sealing way through a second connecting pipeline (222);
the middle part of the first connecting pipeline (221) is hermetically communicated with the middle part of the second connecting pipeline (222) through a third connecting pipeline (223);
at the moment, for the multi-cylinder foundation (1), the top of each cylinder body is respectively welded with a lower blind flange (5);
each lower blind flange (5) comprises a lower blind flange water pipeline interface (51) which is vertically penetrated;
each upper blind flange (4) is respectively and correspondingly and rigidly connected with one lower blind flange (5), and the upper end of a lower blind flange water pipeline interface (51) on the lower blind flange (5) is correspondingly and hermetically communicated with the lower end of an upper blind flange water pipeline interface (41) on the upper blind flange (4);
the lower end of each lower blind flange water pipeline interface (51) is communicated with one end of a water pipeline (7) through a connecting pipeline respectively;
the other end of each water pipeline (7) is respectively communicated with a reserved opening at the top of one cylinder in a sealing way;
for three barrels included by the multi-barrel foundation (1), the top center positions of any two adjacent barrels are respectively connected through a multi-barrel foundation connecting structure (8).
9. The dry type cabin pry block structure and the pipeline system suitable for multi-barrel foundation sinking according to any one of claims 4 to 8, wherein a grouting port (93) is arranged at the top of each barrel;
a grouting interface (93) for performing grouting operation when the cylinder body is sunk to a preset distance from the top cover of the cylinder body to the sea bed level;
a plurality of supporting legs (28) which are vertically distributed are arranged around the periphery of the bottom of the dry-type cabin shell (27);
a plurality of slings (29) are arranged around the periphery of the top of the dry-type cabin shell (27);
for three cylinders included by the multi-cylinder foundation (1), a plurality of prying block positioning bell mouths (6) are respectively welded at the top of each cylinder;
the prying block positioning bellmouths (6) are arranged corresponding to the supporting legs (28) at the bottom of the dry-type cabin shell (27);
each prying block positioning bell mouth (6) is provided with an inner cavity with an opening at the top;
the supporting legs (28) are inserted into the inner cavity of the pry block positioning bell mouth (6);
when the air pressure in each cylinder of the multi-cylinder foundation (1) is kept unchanged, the stress of a sling (29) for hoisting the multi-cylinder foundation (1) is zero, and the multi-cylinder foundation does not sink any more, the multi-cylinder foundation (1) is judged to have completed the mud entering operation to the seabed under the action of self weight;
wherein the suction pump (21) comprises a motor (210);
a water cooling block (10) is arranged on the surface of a radiating fin on the motor (210);
the water cooling block (10) is internally provided with a hollow water channel;
one end of the water channel is communicated with the water inlet (22) through a motor heat dissipation water inlet pipeline (211);
the other end of the water channel is communicated with the water outlet (23) through a motor heat dissipation water outlet pipeline (212).
10. A dry-type cabin pry block structure and a pipeline system suitable for multi-barrel foundation sinking according to any one of claims 4 to 8, wherein the following working modes are included:
firstly, a multi-cylinder foundation (1) enters water through hoisting equipment, seawater flows into an inner cavity of a cylinder from an opening at the bottom of the multi-cylinder foundation, at this time, air in the inner cavity of the cylinder is extruded by the seawater and is exhausted outwards from an inlet and an outlet reserved on the side wall of a dry-type cabin shell (27) through a pipeline inside a dry-type cabin prying block (2) until the seawater level completely does not cover the multi-cylinder foundation (1), and the multi-cylinder foundation (1) continuously sinks in the seawater;
then, the cylinder body gradually enters mud under the action of the dead weight, and when the dead weight of the multi-cylinder foundation (1) is equal to the sinking resistance of the seabed on the multi-cylinder foundation (1), the cylinder body does not continue to enter the mud, and the operation of the dead weight mud entering of the seabed is completed;
and then, starting a suction pump (21) in the dry-type cabin prying block (2), and pumping out seawater which floods into each barrel in the multi-barrel foundation (1) through a water pipeline (7) to generate negative pressure in the multi-barrel foundation (1), so that the gradual sinking is realized until each barrel is deeply buried into the seabed to a preset depth.
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| CN202110783866.4A CN113464374B (en) | 2021-07-12 | 2021-07-12 | Dry-type cabin sled piece structure and pipe-line system suitable for many bases are sunk |
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| CN202110783866.4A CN113464374B (en) | 2021-07-12 | 2021-07-12 | Dry-type cabin sled piece structure and pipe-line system suitable for many bases are sunk |
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| KR20140108388A (en) * | 2013-02-26 | 2014-09-11 | 현대중공업 주식회사 | Floating facility having packagef power station and desalination device |
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