CN218662312U - Construction structure for hoisting multiple fans in combination with mobile wharf - Google Patents

Construction structure for hoisting multiple fans in combination with mobile wharf Download PDF

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Publication number
CN218662312U
CN218662312U CN202223065175.XU CN202223065175U CN218662312U CN 218662312 U CN218662312 U CN 218662312U CN 202223065175 U CN202223065175 U CN 202223065175U CN 218662312 U CN218662312 U CN 218662312U
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mooring
semi
submersible
ship
hoisting
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CN202223065175.XU
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Inventor
闫建国
余海东
孙天学
彭昌阳
陈玺
杨薛亮
洪驭辰
王坤
张慧
陈建树
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PowerChina Offshore Wind Power Engineering Co Ltd
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PowerChina Offshore Wind Power Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model discloses a construction structures that a plurality of fans combine to remove pier hoist and mount, include: a semi-submersible hoisting ship with a bottom in a shallow water area soft soil layer; the self-elevating mounting platform is arranged in a soft soil layer of a shallow water area, is fixedly moored and is positioned at the side end of the semi-submersible type hoisting ship; the semi-submersible lifting ship and the self-elevating mounting platform form a mobile dock together; the fan floating bodies are distributed on the sides of the semi-submersible lifting ship and the self-elevating mounting platform and are mounted on the semi-submersible lifting ship through mooring systems. Because the soft soil layer of the shallow water area at the bottom of the semi-submersible type hoisting ship bears the hoisting load of the fan, and the self-elevating type mounting platform bears the load during hoisting, the problem that the construction period is long in newly-built wharfs capable of bearing the hoisting load of the fan is solved, and the offshore construction efficiency with a specific time window period is improved.

Description

Construction structure for hoisting multiple fans in combination with mobile wharf
Technical Field
The utility model relates to a construction structures that a plurality of fans combine to remove pier hoist and mount belongs to fan construction technical field.
Background
When the floating type fan is constructed and installed on the sea, a barrel, a machine head and blades of the fan need to be installed on a floating body by means of a wharf, and then the floating type fan is transported to a construction installation point by a transport ship to be moored and fixed.
When the construction installation point is far offshore and the nearby wharf can not bear the fan hoisting load, the newly-built wharf constructed on the coast can bear the fan hoisting load, but the newly-built wharf needs to be subjected to time periods such as concrete formwork pouring, solidification and maintenance, so that the problem of long construction period exists, and the offshore construction efficiency with a specific time window period can be reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a construction structures that a plurality of fans combine to remove pier hoist and mount.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of a plurality of fans combine to remove construction structures of pier hoist and mount, include:
a semi-submersible hoisting ship with a soft soil layer in a shallow water area;
the self-elevating mounting platform is arranged in a soft soil layer of a shallow water area, is fixedly moored and is positioned at the side end of the semi-submersible lifting ship; the semi-submersible lifting ship and the self-elevating mounting platform form a mobile wharf together;
the fan floating bodies are distributed on the sides of the semi-submersible lifting ship and the self-elevating mounting platform and are mounted on the semi-submersible lifting ship through mooring systems.
The number of the fan floating bodies is two, and the two fan floating bodies are distributed on two sides of the semi-submersible type lifting ship through the mooring system.
The mooring system is contacted with the side of the semi-submersible type hoisting ship through a buffer piece which can absorb impact force to provide buffer.
The self-elevating mounting platform and the semi-submersible hoisting ship are horizontal in an overlooking state.
The mooring system comprises: constructing a mooring pile fixed on a soft soil layer in a shallow water area, wherein the mooring pile is connected and moored with two ends of one side of a floating body triangular body of the fan through a mooring cable A;
constructing a limiting pile fixed on a soft soil layer in a shallow water area, wherein the limiting pile is in contact limiting with one side of the fan floating body close to the mooring pile;
a mooring cable B which is connected with the other side of the floating body of the fan in a mooring way;
and the two ends of the fan floating body triangular body close to the semi-submersible lifting ship are correspondingly connected with one ends of the mooring cable C and the mooring cable D.
The mooring lines C cross the mooring lines D.
And the other ends of the mooring cable C and the mooring cable D after crossing are connected with a semi-submersible hoisting ship for mooring.
The number of the mooring cables B is two.
One ends of the two mooring cables B are correspondingly connected with two ends of the other side of the fan floating body triangle in a mooring mode respectively, and the other ends of the two mooring cables B are connected with a semi-submersible lifting ship in a mooring mode.
The number of the mooring cables A is two, and a winch is installed at the top of the mooring pile and used for connecting and installing the mooring cables A.
The beneficial effects of the utility model reside in that: because the soft soil layer of the shallow water area at the bottom of the semi-submersible type hoisting ship bears the hoisting load of the fan, and the self-elevating type mounting platform bears the load during hoisting, the problem that the construction period is long in newly-built wharfs capable of bearing the hoisting load of the fan is solved, and the offshore construction efficiency with a specific time window period is improved.
Drawings
FIG. 1 is a schematic view of the top distribution of the construction structure of the present invention;
fig. 2 is a schematic top distribution view of the mooring system of the present invention;
fig. 3 is a schematic view of the distribution of the mobile dock and the jack-up mounting platform in shallow water in soft soil;
in the figure: 1-semi-submersible hoisting ship; 2-soft soil layer in shallow water area; 3, self-elevating mounting platform; 4-mooring system; 41-a fan float; 42-mooring piles; 43-mooring line A; 44-mooring lines B; 45-mooring line C; 46-mooring line D; 47-limiting piles; 5-buffer member.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1-3.
The application discloses a plurality of fans combine construction structures who removes pier hoist and mount includes:
the semi-submersible type hoisting ship 1 is arranged on a soft soil layer 2 in a shallow water area, and the semi-submersible type hoisting ship 1 is mainly used for mooring a fan floating body 41, stacking fan equipment, hoisting a tower drum by a fan, turning over a fan impeller and the like; the length of the semi-submersible lifting ship 1 is about 140m, the profile width is 37m, the maximum width is 47m, the profile depth is 12m, the maximum draught is 9m, and the maximum sinking depth is 25.5m; the semi-submersible type hoisting ship is provided with an 800t full-rotation ship crane, the hoisting weight is 600t @40m, the maximum hoisting height is 160m, and the semi-submersible type hoisting ship 1 contains two sets of towers, two sets of engine rooms, two sets of hubs and one set of blades.
The self-elevating type installation platform 3 is inserted into the soft soil layer 2 of the shallow water area through the elevating feet, is moored and fixed and is positioned at the side end of the semi-submersible type lifting ship 1, and the self-elevating type installation platform 3 and the semi-submersible type lifting ship 1 are horizontal in a overlooking state.
The draught fan floating bodies 41 are distributed on the sides of the semi-submersible type lifting ship 1 and the self-elevating type mounting platform 3, more than two draught fan floating bodies 41 are respectively arranged on the semi-submersible type lifting ship 1 through mooring systems 4 in a mooring mode, and the two draught fan floating bodies 41 are distributed on the two sides of the semi-submersible type lifting ship 1 through the mooring systems 4.
The mooring system 4 is contacted with the side edge of the semi-submersible type hoisting ship 1 through a buffer piece 5 capable of absorbing impact force to provide buffering, and the buffer piece 5 is a tire or an elastic rubber body or an elastic air bag and the like.
The semi-submersible lifting ship 1 with the bottom in the soft soil layer 2 of the shallow water area bears the load of the fan assembly, the ship lifting implementation fan assembly of the semi-submersible lifting ship 1 is overflowed from a transport ship to the semi-submersible lifting ship 1, the self-elevating mounting platform 3 lifts the fan assembly on a fan floating body 41 which is moored and mounted on the semi-submersible lifting ship 1, mooring after lifting is achieved, the fan assembly is consigned to a construction installation point through the transport ship and is moored and fixed, the semi-submersible lifting ship 1 and the self-elevating mounting platform 3 can form a mobile dock together due to movement on the sea surface, the soft soil layer 2 of the shallow water area of the semi-submersible lifting ship 1 bears the fan lifting load, the self-elevating mounting platform 3 bears the load during lifting, the problem that the construction period of the newly-built dock bearing the fan lifting load is long is solved, and the offshore construction efficiency with a specific time window period is improved.
When a floating body needs to be transferred to a mobile wharf on the sea for fan hoisting construction, the floating body of a fan needs to be moored on the sea, and the prior art refers to a shallow-water offshore floating type fan mooring system with the Chinese patent publication number of CN216508898U, and the open adopted technology is as follows: the multiple groups of mooring structures arranged around the floating body foundation can complete mooring by the multiple groups of mooring structures around the floating body foundation, but the multiple groups of mooring structures can excessively occupy the sea surface around the floating body foundation, so that other production and transportation operations on the sea surface of a construction point are influenced.
The mooring system 4, specifically the mooring system 4 with a foundation of a fan float 41 moored at a mobile dock, includes: constructing a mooring pile 42 fixed on the soft soil layer 2 in the shallow water area, wherein the mooring pile 42 is connected and moored with two ends of one side of a triangular body of a fan floating body 41 through a mooring cable A43; the number of the mooring lines A43 is two, and a winch is installed at the top of the mooring pile 42 and used for connecting and installing the mooring lines A43, so that the mooring lines A43 can be tightened or loosened through the winch.
Constructing a limiting pile 47 fixed on the soft soil layer 2 in the shallow water area, wherein the limiting pile 47 is in contact limiting with one side of the fan floating body 41 close to the mooring pile 42; during construction, the limiting pile 47 is positioned on one side of the fan floating body 41 far away from the semi-submersible lifting ship 1.
The number of the mooring cables B44 is two, one end of each mooring cable B44 is correspondingly connected with the two ends of the other side of the triangular body of the fan floating body 41 in a mooring mode, and the other end of each mooring cable B44 is connected with the semisubmersible hoisting ship 1 in a mooring mode;
the two ends of the triangular body of the fan floating body 41, which lean against the semi-submersible type hoisting ship 1, are correspondingly connected with one ends of a mooring rope C45 and a mooring rope D46, the mooring rope C45 is crossed with the mooring rope D46, and the other ends of the crossed mooring rope C45 and the crossed mooring rope D46 are connected with the semi-submersible type hoisting ship 1 for mooring.
One end of a fan floating body 41 is moored on a mooring pile 42 through a mooring cable A43, the other end of the fan floating body 41 is moored on the semi-submersible type lifting ship 1 through a mooring cable B44, the side face of the fan floating body 41 is moored on the semi-submersible type lifting ship 1 through a mooring cable C45 and a mooring cable D46 to be limited by a limiting pile 47, the mooring cable is not arranged on the outer periphery of the limiting pile 47, the influence on other production and transportation operations on the sea surface of a construction point is reduced, and the problem that a plurality of groups of mooring structures occupy the sea surface too much on the periphery of a floating body foundation is solved.
The application provides a construction method for combining a plurality of fans and hoisting a mobile wharf, which comprises the following steps: the construction method is characterized in that a semi-submersible lifting ship 1 sits on a soft soil layer 2 in a shallow water area, self-elevating mounting platforms 3 are distributed at the side end of the semi-submersible lifting ship 1 and inserted into the soft soil layer 2 in the shallow water area, two sets of mooring systems 4 correspondingly moor and mount two fan floating bodies 41 on the semi-submersible lifting ship 1 to form a construction structure for hoisting by combining a plurality of fans with a movable wharf, and one or more fans are hoisted on the sea.
Because the soft soil layer 2 of the shallow water area at the bottom of the semi-submersible type hoisting ship 1 bears the hoisting load of the fan, and the self-elevating type mounting platform 3 bears the load when hoisting, the problem that a newly-built wharf capable of bearing the hoisting load of the fan has long construction period is solved, and the offshore construction efficiency with a specific time window period is improved.
The construction method specifically comprises the following steps:
1) Surveying the topography, geology and storm flow conditions of a water area (west side of a continent island), and further determining an operation water area capable of meeting the installation requirement;
2) Performing pile sinking operation on the mooring pile 42 and the limiting pile 47, installing a winch on the pile top, and installing a floating body bottom-sitting caisson;
3) The semi-submersible type hoisting ship enters a field and is in place and sits on the bottom of the soft soil layer 2 in the shallow water area to form a semi-submersible type hoisting ship 1, and the self-elevating type mounting platform 3 enters the field and is in place and completes pile inserting operation in the soft soil layer 2 in the shallow water area;
4) The deck transport ship carries two sets of fan equipment, a berthing semi-submersible lifting ship 1 with a tower drum and a self-elevating mounting platform 3, ship hoisting implementation equipment on the semi-submersible lifting ship 1 and the self-elevating mounting platform 3 is used for refuting, and an impeller is assembled by the self-elevating platform;
5) The foundation of the fan floating body 41 is berthed to the semi-submersible lifting ship 1 and the self-elevating mounting platform 3, and the fan floating body 41 is adjusted to sit at the bottom through the mooring system 4 and is moored and fixed on the semi-submersible lifting ship 1;
6) Assembling the fan assembly on the fan floating body 41 by using the self-elevating mounting platform 3 and the semi-submersible lifting ship 1 in an alternate running water manner; (the semi-submersible hoisting ship 1 mainly hoists a tower, and the self-elevating mounting platform 3 is mainly responsible for hoisting an engine room and an impeller);
7) The tug is hung on the cable fan floating body 41, and the fan floating body 41 is adjusted to float, so that the mooring operation is completed.

Claims (9)

1. The utility model provides a construction structures of a plurality of fans combination removal pier hoist and mount which characterized in that includes:
a semi-submersible hoisting ship (1) with a soft soil layer (2) in a shallow water area;
the self-elevating type mounting platform (3) is mounted in a soft soil layer (2) of a shallow water area, is fixedly moored and is positioned at the side end of the semi-submersible type hoisting ship (1); the semi-submersible lifting ship (1) and the self-elevating mounting platform (3) together form a mobile wharf;
the fan floating bodies (41) are distributed on the sides of the semi-submersible lifting ship (1) and the self-elevating mounting platform (3), and the fan floating bodies (41) are moored and mounted on the semi-submersible lifting ship (1) through a mooring system (4).
2. The construction structure that a plurality of fans combine mobile dock hoist of claim 1 characterized in that: the number of the fan floating bodies (41) is two, and the two fan floating bodies are distributed on two sides of the semi-submersible lifting ship (1) through the mooring system (4).
3. The construction structure for hoisting a plurality of fans in combination with a mobile wharf as claimed in claim 1, characterized in that: the mooring system (4) is contacted with the side edge of the semi-submersible lifting ship (1) through a buffer piece (5) which can absorb impact force to provide buffer.
4. The construction structure that a plurality of fans combine mobile dock hoist of claim 1 characterized in that: the self-elevating mounting platform (3) and the semi-submersible hoisting ship (1) are horizontal in a top view state.
5. Construction structure hoisted by multiple fans combined with mobile wharf according to claim 1, characterized in that said mooring system (4) comprises: constructing a mooring pile (42) fixed on a soft soil layer (2) in a shallow water area, wherein the mooring pile (42) is connected and moored with two ends of one side of a triangular body of a fan floating body (41) through a mooring rope A (43);
constructing a limiting pile (47) fixed on a soft soil layer (2) in the shallow water area, wherein the limiting pile (47) is in contact limiting with one side of the fan floating body (41) close to the mooring pile (42);
a mooring line B (44) connected with the other side of the fan floating body (41) in a mooring way;
the two ends of the triangular body of the fan floating body (41) close to the semi-submersible type hoisting ship (1) are correspondingly connected with one ends of the mooring cable C (45) and one end of the mooring cable D (46).
6. The construction structure that a plurality of fans combine mobile dock hoist of claim 5, characterized in that: the mooring line C (45) intersects with a mooring line D (46).
7. The construction structure that a plurality of fans combine removal pier hoist and mount of claim 6, characterized by: the other ends of the mooring cable C (45) and the mooring cable D (46) after crossing are connected with a semi-submersible hoisting ship (1) for mooring.
8. The construction structure that a plurality of fans combine mobile dock hoist of claim 5, characterized in that: the number of the mooring cables B (44) is two, one ends of the two mooring cables B (44) are correspondingly connected with two ends of the other side of the triangular body of the fan floating body (41) in a mooring mode respectively, and the other ends of the two mooring cables B (44) are connected with the semi-submersible lifting ship (1) in a mooring mode.
9. The construction structure that a plurality of fans combine removal pier hoist and mount of claim 5, characterized by: the number of the mooring lines A (43) is two, and a winch is installed at the top of the mooring pile (42) and used for connecting and installing the mooring lines A (43).
CN202223065175.XU 2022-11-18 2022-11-18 Construction structure for hoisting multiple fans in combination with mobile wharf Active CN218662312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223065175.XU CN218662312U (en) 2022-11-18 2022-11-18 Construction structure for hoisting multiple fans in combination with mobile wharf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223065175.XU CN218662312U (en) 2022-11-18 2022-11-18 Construction structure for hoisting multiple fans in combination with mobile wharf

Publications (1)

Publication Number Publication Date
CN218662312U true CN218662312U (en) 2023-03-21

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