A mooring system, a mooring system installation method and a floating wind power platform

Abstract

The present application discloses a mooring system, a mooring system installation method and a floating wind power platform, and relates to the technical field of floating wind power platforms, wherein the mooring system comprises a pre-installed anchor chain mooring group and a plurality of positioning anchor chain mooring groups; the pre-installed anchor chain device and the positioning anchor chain device both comprise an anchor chain and a chain stopper for locking the anchor chain, the chain stopper comprises a fixedly arranged first machine base and two gate knives mounted on the first machine base; the positioning anchor chain device comprises a detachably arranged lifting anchor machine, the sprocket assembly comprises a detachably connected second machine base and a sprocket mounted on the second machine base, the rocker assembly comprises a third machine base detachably connected to a column directly or indirectly, a rocker cylinder mounted on the third machine base and a rocker connected to the rocker cylinder, the rocker is equipped with a ratchet cylinder for controlling the rotation of a ratchet, and the anchor chain is lifted by controlling the rocker cylinder and the ratchet cylinder to adjust the tension of the anchor chain. The present application can reduce the overall cost of the mooring system.

Description

Technical Field

[0001] The present application relates to the technical field of floating wind power platforms, and in particular to a mooring system, a mooring system installation method, and a floating wind power platform. Background Art

[0002] As a new type of offshore wind power infrastructure, the mooring system of the floating wind power platform is an important component of the floating wind power platform and a key technology for maintaining the stability of the floating foundation. The commonly used mooring systems are mainly catenary and tensioning. The catenary type is a traditional mooring type that uses steel chains or cables as mooring lines. The mooring anchor chain of this type is long and mainly relies on the gravity of the anchor chain itself as the mooring restoring force. Therefore, the water area covered by the mooring cable increases with the water depth. The tensioning mooring cable is in a tensioned state, so the lower end of the mooring cable needs to be fixed on the seabed. The mooring restoring force is mainly provided by the seabed anchor foundation, so the design and construction cost of the anchor foundation is relatively high. The catenary mooring system mainly relies on the gravity of the cable as the mooring restoring force, so the cable is required to have sufficient weight, and usually an anchor chain is used.

[0003] For the current floating wind power platform, the main form is a column-stabilized platform configuration with an equilateral triangle layout. The mooring system used is a catenary type. Specifically, an anchor chain mooring group is arranged on each column. Each anchor chain mooring group is provided with three groups of anchor chains. Then, the anchor chains of each anchor chain mooring group are lifted by the anchor cable machine to position the floating wind power platform. Nine anchor cables are required for three columns. After the mooring system of the floating wind power platform is installed, the anchor cable machine will no longer work. The current anchor cable machine is difficult to disassemble after installation because the chain stop device for fixing the anchor chain is a part of the anchor cable machine and cannot be disassembled as an integrated structure. The anchor cable machine is an indispensable component in the mooring system of the floating wind power platform. Because the anchor chain needs to be lifted to adjust the tension of each anchor chain to complete the positioning of the floating wind power platform, the cost of the anchor cable machine is high, which results in a high overall cost of the mooring system.

[0004] In view of this, there is a need for a floating wind power platform mooring system that can reduce the overall construction cost. Summary of the invention

[0005] The present application aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present application provides a mooring system that can ensure the positioning requirements of the anchor chain on the floating wind power platform and reduce the overall cost of the mooring system.

[0006] The embodiment of the present application also provides a mooring system installation method for installing the above-mentioned mooring system.

[0007] The embodiment of the present application also provides a floating wind power platform equipped with the above-mentioned mooring system.

[0008] According to an embodiment of the first aspect of the present application, there is provided a mooring system, comprising a pre-installed anchor chain mooring group, the pre-installed anchor chain mooring group being installed on one of the columns of a floating wind power platform, the pre-installed anchor chain mooring group comprising at least one pre-installed anchor chain device; and a plurality of positioning anchor chain mooring groups, the positioning anchor chain mooring groups being installed on the remaining columns of the floating wind power platform respectively, the positioning anchor chain mooring groups comprising at least one positioning anchor chain device;

[0009] Wherein, the pre-installed anchor chain device and the positioning anchor chain device both include the anchor chain and a chain stopper for locking the anchor chain, the chain stopper includes a first machine base directly or indirectly fixed to a column, two gate knives installed on the first machine base, the lower part of the gate knives is hinged to the first machine base, the upper part of the gate knives has a stopper for clamping the anchor chain, the first machine base is equipped with a gate oil cylinder connected to the gate knives to control the rotation of the gate knives, so that the gate knives have an open state and a closed state, when the gate knives are in the open state, there is a channel between the two gate knives for the anchor chain to pass through, when the gate knives are in the closed state, the stoppers on the upper parts of the two gate knives are close to each other and respectively press against the anchor chain to lock the anchor chain;

[0010] The anchor chain positioning device comprises a detachable lifting anchor machine, the lifting anchor machine comprises a sprocket assembly and a rocker assembly, the sprocket assembly comprises a second machine base detachably connected to a column directly or indirectly and a sprocket mounted on the second machine base, the rocker assembly comprises a third machine base detachably connected to the column directly or indirectly, a rocker cylinder mounted on the third machine base and a rocker connected to the rocker cylinder, one end of the rocker is hinged to the telescopic end of the rocker cylinder, the other end of the rocker is hinged to the sprocket, the rocker is equipped with a pawl, one end of the pawl is hinged to the rocker, the other end of the pawl has a pushing portion for clamping the anchor chain, the rocker is equipped with a pawl cylinder for controlling the rotation of the pawl, the anchor chain is lifted by controlling the rocker cylinder and the pawl cylinder to adjust the tension of the anchor chain;

[0011] The positioning anchor chain mooring group also includes a detachable hydraulic pump station, which provides hydraulic oil to the knife cylinder, the rocker cylinder and the pawl cylinder through a hydraulic hose;

[0012] The anchor chains of the pre-installed anchor chain mooring group and the positioning anchor chain mooring group are respectively extended outwards along the direction of each column to form a chain arrangement mode in which each anchor chain is respectively arranged around the circumference of the floating wind power platform.

[0013] According to the embodiment of the first aspect of the present application, the two ends of the lower part of the knife are respectively provided with a driving end and a reset end after passing through the first machine base, and the driving end is radially provided with a first connecting seat outward, one end of the knife gate cylinder is hinged to the first machine base, and the other end of the knife gate cylinder is hinged to the first connecting seat to push the knife gate to rotate through the knife gate cylinder.

[0014] According to an embodiment of the first aspect of the present application, the reset end is provided with a second connecting seat, the first machine seat is installed with a reset spring, one end of the reset spring is hinged to the first machine seat, and the other end of the reset spring is hinged to the second connecting seat, and the reset spring applies an elastic force to the stop parts of the knife gate to rotate closer to each other, so as to realize the automatic cutting of the knife gate into a closed state.

[0015] According to an embodiment of the first aspect of the present application, the driving end or the reset end is provided with a third connecting seat, and the third connecting seat and the first machine base are both provided with pin holes for installing a stop safety pin, and the stop safety pin is inserted into the pin holes of the third connecting seat and the first machine base to limit the rotation of the knife gate, thereby locking and fixing the knife gate.

[0016] According to an embodiment of the first aspect of the present application, the pre-installed anchor chain device is provided with a first base fixed on a column, and the first machine base of the pre-installed anchor chain device is installed on the first base through fasteners; the positioning anchor chain device is provided with a second base fixed on the column, and the first machine base of the positioning anchor chain device is installed on the second base through fasteners, and the second machine base and the third machine base of the positioning anchor chain device are respectively installed on the second base through fasteners and are distributed on both sides of the first machine base to achieve detachable connection.

[0017] According to an embodiment of the first aspect of the present application, the pre-installed anchor chain device and the positioning anchor chain device both include a chain guide, and the chain guide is located below the chain stopper to guide the anchor chain. The chain stopper includes an upper base, a lower base, a rotating pivot, a sprocket bracket and a guide chain wheel. The upper base and the lower base are fixedly arranged on the side walls of the column, and the upper and lower ends of the rotating pivot are respectively hingedly mounted on the upper base and the lower base, the sprocket bracket is fixed to the rotating pivot, and the guide chain wheel is rotatably mounted on the sprocket bracket.

[0018] According to an embodiment of the first aspect of the present application, one preinstalled anchor chain mooring group is provided, and the preinstalled anchor chain mooring group includes three preinstalled anchor chain devices; two positioning anchor chain mooring groups are provided, and the positioning anchor chain mooring group includes three positioning anchor chain devices.

[0019] According to an embodiment of the second aspect of the present application, a mooring system installation method is provided, wherein the mooring system of the embodiment of the first aspect of the present application is installed, comprising the following steps:

[0020] The step of installing the pre-installed anchor chain mooring group is as follows: installing the anchor chain and the chain stopper of the pre-installed anchor chain device, and fixing the anchor chain by the chain stopper;

[0021] The step of installing the pre-installed anchor chain device is as follows: installing the anchor chain, the chain stopper, the lifting anchor machine and the hydraulic pump station of the positioning anchor chain device;

[0022] Anchoring step: anchoring each of the anchor chains using an anchoring device;

[0023] Anchor chain lifting step: the anchor chain is lifted by the lifting anchor windlass in the anchor chain positioning device, wherein the ratchet oil cylinder drives the ratchet to press the corresponding anchor chain, the gate knife is rotated to be in an open state, and the rocker arm oil cylinder drives the ratchet to extend the anchor chain; the gate knife is rotated to be in a closed state, the ratchet is released, and the ratchet and the rocker arm are reset; this process is repeated until the tension of each anchor chain is adjusted and the positioning of the floating wind power platform is completed;

[0024] Steps for removing and lifting the anchor winch: locking and fixing the blades of each chain stopper to keep the blades in a closed state, and removing the pressure of the hydraulic pump station; removing the pipe interface of the hydraulic hose and sealing it; loosening the second machine base and the third machine base, and then separating the rocker arm from the sprocket, lifting the anchor chain hanging on the sprocket, and removing the rocker arm assembly and the sprocket assembly;

[0025] Steps for dismantling the hydraulic pump station: loosen and remove the hydraulic pump station.

[0026] According to an embodiment of the second aspect of the present application, the hydraulic pump station is configured according to the number of the positioning anchor chain mooring groups; the anchor chain of the pre-installed anchor chain device is installed in a pre-installed manner and locked by the chain stopper, wherein one of the hydraulic pump stations is used to control the chain stopper of the pre-installed anchor chain device; after completing the installation of the pre-installed anchor chain mooring group, each of the hydraulic pump stations is moved to the corresponding column position, and the hydraulic pump station respectively controls each positioning anchor chain device of the positioning anchor chain mooring group, and then adjusts the tension of the anchor chain in each of the positioning anchor chain devices one by one to adjust the positioning of the floating wind power platform.

[0027] According to an embodiment of the third aspect of the present application, there is provided a floating wind power platform, wherein the floating wind power platform is equipped with a mooring system according to an embodiment of the first aspect of the present application.

[0028] Based on the above technical scheme, the embodiment of the present application has at least the following beneficial effects: In the above technical scheme, a pre-installed anchor chain mooring group is used at one column position, and the positioning anchor chain device is only equipped with a chain stopper, and the anchor chain is directly clamped by the chain stopper; the positioning anchor chain mooring group is used at the other column positions, and the positioning anchor chain device is equipped with a lifting anchor machine in addition to the chain stopper. The lifting anchor machine can lift the anchor chain by controlling the rocker cylinder and the ratchet cylinder, thereby adjusting the tension of the anchor chain, and adjusting the positioning of the floating wind power platform by adjusting the tension of each anchor chain of the other columns one by one. The lifting anchor machine and the chain stopper adopt a modular design and can be used in combination and disassembled. In this way, the pre-installed anchor chain device is only equipped with a chain stopper. After the positioning anchor chain device completes the adjustment of the anchor chain tension, the positioning anchor machine and the hydraulic pump station can be disassembled and moved to other floating wind power platforms to continue to serve the mooring and positioning operations of other floating wind power platforms, greatly improving the utilization rate of the equipment and significantly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present application is further described below with reference to the accompanying drawings and embodiments;

[0030] Figure 1 is a schematic diagram of the installation of the mooring system of an embodiment of the present application;

[0031] Figure 2 yes Figure 1 A partial enlarged view of circle A in the middle;

[0032] Figure 3 yes Figure 2 Schematic diagram of the structure in the CC direction;

[0033] Figure 4 yes Figure 1 A partial enlarged view of circle B in the middle;

[0034] Figure 5 yes Figure 4 Schematic diagram of the structure in the middle DD direction;

[0035] Figure 6 is a front view of a chain stopper in an embodiment of the present application;

[0036] Figure 7 is a top view of the chain stopper in an embodiment of the present application;

[0037] Figure 8 is a front view of the lifting windlass in the embodiment of the present application, wherein a chain stopper is also shown;

[0038] Fig. 9 1 is a schematic diagram of the structure of the anchor chain lifting windlass in the embodiment of the present application, wherein a chain stopper is also shown;

[0039] Fig.10 is a front view of a chain guide in an embodiment of the present application;

[0040] Fig.11 It is a structural schematic diagram of lifting the anchor chain in the step of removing and lifting the anchor machine in an embodiment of the present application;

[0041] Fig.12 It is a structural schematic diagram of removing the rocker arm assembly and the sprocket assembly in the step of dismantling the lifting anchor machine in an embodiment of the present application.

[0042] Reference numerals: floating wind power platform 100, first column 110, first chain locker 111, first chain guide pipe 112, first base 113, second column 120, second chain locker 121, second chain guide pipe 122, second base 123, third column 130;

[0043] Pre-installed anchor chain mooring group 210, pre-installed anchor chain device 211, positioned anchor chain mooring group 220, positioned anchor chain device 221;

[0044] Anchor chain 300;

[0045] Chain stopper 400, first base 411, gate knife 421, stopper 422, first connecting base 423, second connecting base 424, third connecting base 425, gate knife oil cylinder 431, return spring 441;

[0046] Lifting anchor winch 500, sprocket assembly 510, second machine base 511, sprocket 512, rocker arm assembly 520, third machine base 521, rocker arm cylinder 522, rocker arm 523, ratchet 524, push part 525, ratchet pawl cylinder 526;

[0047] Chain guide 600, upper base 611, lower base 612, rotation pivot 621, sprocket bracket 631, guide sprocket 641;

[0048] Hydraulic pump station 700. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0055] like Figure 1 As shown, the current floating wind power platform 100 is a column-stabilized platform configuration, which is arranged in an equilateral triangle, wherein the floating wind power platform 100 includes a first column 110 , a second column 120 and a third column 130 .

[0056] Refer to the following Figures 1 to 12 , describes a mooring system according to an embodiment of the present invention, including a pre-installed anchor chain mooring group 210 and a plurality of positioning anchor chain mooring groups 220, the pre-installed anchor chain mooring group 210 is installed on one of the columns of the floating wind power platform 100, and the positioning anchor chain mooring groups 220 are respectively installed on the remaining columns of the floating wind power platform 100, such as Figure 1 As shown, this embodiment has three columns in total, based on which, one pre-installed anchor chain mooring group 210 is provided, and two positioning anchor chain mooring groups 220 are provided. Specifically, the first column 110 is installed with the pre-installed anchor chain mooring group 210, and the second column 120 and the third column 130 are respectively installed with the positioning anchor chain mooring groups 220.

[0057] Among them, Figure 2 As shown, the pre-installed anchor chain mooring group 210 includes at least one pre-installed anchor chain device 211, and three are provided in this embodiment; Figure 4 As shown, the positioning anchor chain mooring group 220 includes at least one positioning anchor chain device 221, and three are provided in this embodiment.

[0058] Reference Figure 2 and Figure 3 The pre-installed anchor chain device 211 includes an anchor chain 300 and a chain stopper 400 for locking the anchor chain 300. The first column 110 is provided with a first anchor chain compartment 111, and a first chain guide pipe 112 is provided on the top of the first anchor chain compartment 111. The anchor chain 300 is locked by the chain stopper 400 to fix the length, and the excess anchor chain is stored from the first chain guide pipe 112 to the first anchor chain compartment 111.

[0059] Specifically, refer to Figure 6 and Figure 7The chain stopper 400 includes a first machine base 411 directly or indirectly fixed to the column, two gate knives 421 installed on the first machine base 411, the lower part of the gate knives 421 is hinged to the first machine base 411, and the upper part of the gate knives 421 has a stopper 422 for clamping the anchor chain 300. The first machine base 411 is equipped with a gate knife cylinder 431 connected to the gate knife 421 to control the rotation of the gate knife 421, so that the gate knife 421 has an open state and a closed state.

[0060] The pre-installed anchor chain device 211 is provided with a first base 113 fixed on the first column 110, and the first machine base 411 of the pre-installed anchor chain device 211 is installed on the first base 113 through fasteners.

[0061] exist Figure 6 In the figure, the gate knife 421 is shown in the open state in the form of a double-dotted line. It can be understood that when the gate knife 421 is in the open state, the stopper portions 422 on the two gate knives 421 are separated from each other, and there is a passage for the anchor chain 300 to pass through between the two gate knives 421. When the anchor chain 300 needs to be locked, the gate knife oil cylinder 431 drives the gate knife 421 to rotate. At this time, Figure 6 As shown, the switch 421 is Figure 6 The marked rotation direction cuts into the closed state, the stoppers 422 on the two blades 421 are close to each other and respectively press against the anchor chain 300 to lock the anchor chain 300, and the blades 421 are shown in the closed state in the form of solid lines.

[0062] Reference Figure 6 and Figure 7 The specific connection between the knife cylinder 431 and the knife 421 is as follows: the two ends of the lower part of the knife 421 are respectively provided with a driving end and a reset end after passing through the first base 411, and the driving end is provided with a first connecting seat 423 radially outwardly, one end of the knife cylinder 431 is hinged to the first base 411, and the other end of the knife cylinder 431 is hinged to the first connecting seat 423, so as to push the knife 421 to rotate through the knife cylinder 431. Figure 6 It can be understood that when the telescopic ends of the two gate knife oil cylinders 431 are extended, the gate knife 421 is driven to rotate respectively, and the stop parts 422 on the two gate knives 421 are separated from each other, so that the gate knives 421 are cut into an open state; when the telescopic ends of the two gate knife oil cylinders 431 are retracted, the gate knives 421 are driven to rotate respectively, and the stop parts 422 on the two gate knives 421 are moved closer to each other, so that the gate knives 421 are cut into a closed state.

[0063] In this embodiment, the gate knife 421 is also provided with a reset function, specifically, a second connection seat 424 is provided at the reset end, a reset spring 441 is installed at the first machine base 411, one end of the reset spring 441 is hinged to the first machine base 411, and the other end of the reset spring 441 is hinged to the second connection seat 424, and the reset spring 441 applies an elastic force to the stopper 422 of the gate knife 421 to rotate close to each other, so as to realize that the gate knife 421 automatically cuts into a closed state. If the gate knife oil cylinder 431 has an abnormal oil unloading condition, the gate knife 421 can automatically reset, and the gate knife 421 is pulled to rotate by the reset spring 441, and the stopper 422 of the two gate knives 421 is close to each other, respectively supporting the anchor chain 300, thereby preventing the anchor chain 300 from falling.

[0064] In addition, the first base 411 is also provided with a limit gear, and the rotation angle of the knife 421 is limited by a limit block.

[0065] In this embodiment, the length of the anchor chain 300 of each pre-installed anchor chain device 211 of the pre-installed anchor chain mooring group is preset, and only the chain stopper 400 needs to be locked.

[0066] After locking, the blades 421 are closed, and the force of the anchor chain 300 on the two blades 421 is downward, which can also make the blades self-lock and remain closed when the anchor chain 300 is stressed. In order to ensure the safety of the blades 421 during the mooring stage, in this embodiment, the chain stopper 400 is also provided with a safety pin, specifically, the driving end or the reset end of the blade 421 is provided with a third connection seat 425, and the third connection seat 425 and the first machine base 411 are both provided with pin holes for installing a stop safety pin, which is inserted into the pin holes of the third connection seat 425 and the first machine base 411 to limit the rotation of the blade 421, thereby locking and fixing the blade 421.

[0067] Reference Figures 4 to 9 The anchor chain device 221 also includes an anchor chain 300 and a chain stopper 400 for locking the anchor chain 300. Different from the pre-installed anchor chain device 211, the anchor chain device 221 includes a detachable lifting windlass 500.

[0068] like Figure 8 and Fig. 9 As shown, the windlass 500 includes a sprocket assembly 510 and a rocker arm assembly 520 .

[0069] The sprocket assembly 510 includes a second machine base 511 detachably connected to the column directly or indirectly and a sprocket 512 mounted on the second machine base 511. The second column 120 is provided with a second anchor chain compartment 121, and a second chain guide pipe 122 is provided on the top of the second anchor chain compartment 121. After the anchor chain 300 passes through the chain stopper 400 and the sprocket assembly 510, the excess anchor chain is stored in the second anchor chain compartment 121 from the second chain guide pipe 122.

[0070] The rocker arm assembly 520 includes a third machine base 521 which is directly or indirectly detachably connected to the column, a rocker arm cylinder 522 installed on the third machine base 521, and a rocker arm 523 connected to the rocker arm cylinder 522, one end of the rocker arm 523 is hinged to the telescopic end of the rocker arm cylinder 522, the other end of the rocker arm 523 is hinged to the sprocket 512, the rocker arm 523 is equipped with a pawl 524, one end of the pawl 524 is hinged to the rocker arm 523, the other end of the pawl 524 has a pushing portion 525 for clamping the anchor chain 300, the rocker arm 523 is equipped with a pawl cylinder 526 for controlling the rotation of the pawl 524, and the anchor chain 300 is lifted by controlling the rocker arm cylinder 522 and the pawl cylinder 526 to adjust the tension of the anchor chain 300.

[0071] Reference Figure 8 , the pawl 524 shows an initial state in the form of a double-dotted line; when the anchor chain 300 needs to be lifted, the pawl cylinder 526 drives the pawl 524 to rotate, so that the pushing portion 525 clamps the anchor chain 300, and then the telescopic end of the rocker arm cylinder 522 extends out, driving the rocker arm 523 to rotate around the axis of the sprocket 512, and the pawl 524 on the rocker arm 523 pushes the anchor chain 300 and the sprocket 512 to rotate, thereby lifting the anchor chain 300 and adjusting the tension of the anchor chain 300.

[0072] The positioning anchor chain device 221 is provided with a second base 123 fixed on the column, the first machine base 411 of the positioning anchor chain device 221 is installed on the second base 123 through fasteners, the second machine base 511 and the third machine base 521 of the positioning anchor chain device 221 are respectively installed on the second base 123 through fasteners and distributed on both sides of the first machine base 411 to achieve detachable connection.

[0073] The positioning anchor chain mooring group 220 also includes a detachable hydraulic pump station 700, which provides hydraulic oil to the knife cylinder 431, the rocker cylinder 522 and the ratchet cylinder 526 through a hydraulic hose. In this embodiment, the three positioning anchor chain devices 221 of the positioning anchor chain mooring group 220 share a hydraulic pump station 700 for oil supply. The positioning anchor chain device 221 adopts a full cylinder drive mode design, which has significant characteristics such as large mooring tension, small size, and low cost. Compared with traditional mooring positioning equipment with the same load, its volume is only 1 / 5, the cost is only 1 / 3, and the mooring system cost is low.

[0074] In the mooring system of the existing floating wind power platform, three columns require nine anchor cables, and after the mooring system of the floating wind power platform is installed, the anchor cables will no longer work. The existing anchor cables are difficult to disassemble after installation because the chain stopper for fixing the anchor chain is a part of the anchor cable and cannot be disassembled as an integrated structure. The anchor cable is an indispensable component in the mooring system of the floating wind power platform, but the cost of the anchor cable is high, which results in a high overall cost of the mooring system.

[0075] In the mooring system of this embodiment, a pre-installed anchor chain mooring group 210 is used at one column position, i.e., the first column 110. The pre-installed anchor chain device 211 is only equipped with a chain stopper 400, and the anchor chain 300 is directly clamped by the chain stopper 400. The remaining column positions, i.e., the second column 120 and the third column 130, use a positioning anchor chain mooring group 220. In addition to the chain stopper 400, the positioning anchor chain device 221 is also provided with a lifting anchor windlass 500. The lifting anchor windlass 500 can lift the anchor chain 300 by controlling the rocker cylinder 522 and the ratchet cylinder 526, thereby adjusting the tension of the anchor chain 300. By adjusting the tension of each anchor chain of the second column 120 and the third column 130 one by one, the positioning of the floating wind power platform is adjusted.

[0076] The anchor chains of the pre-installed anchor chain mooring group 210 and the positioning anchor chain mooring group 220 are respectively extended outwards along the direction of each column to form a chain arrangement mode in which each anchor chain is arranged around the circumference of the floating wind power platform.

[0077] The lifting anchor windlass 500 and the chain stopper 400 adopt a modular design and can be used in combination or separately. For example, the pre-installed anchor chain mooring group 210 uses the chain stopper 400 alone, and the positioning anchor chain mooring group 220 uses the lifting anchor windlass 500 and the chain stopper 400 in combination. Through this technical solution, the pre-installed anchor chain device 211 is only equipped with the chain stopper 400. After the positioning anchor chain device 221 completes the tension adjustment of the anchor chain 300, the positioning anchor windlass 500 and the hydraulic pump station 700 can be disassembled, and the anchor chain 300 can be locked only by the chain stopper 400. The disassembled positioning anchor windlass 500 and the hydraulic pump station 700 can be moved to other floating wind power platforms to continue to serve the mooring and positioning operations of other floating wind power platforms, greatly improving the utilization rate of the equipment and significantly reducing costs.

[0078] In addition, it should be noted that due to Figure 3 What is shown is Figure 2 The cross-sectional view along the CC direction, in which the plate thickness is greatly different from the main structure size, the plate thickness cannot be reflected, and the main structure of the first column 110 is not the invention point of the present application, therefore, Figure 3 In the first column 110 shown in FIG. 1 , the structural plate is only marked with a line segment, and no cross-sectional line is shown; similarly, Figure 5In the second column 120 shown, the structural plate is only marked with a line segment, and the section line is not shown. Figure 2 and Figure 4 The plate thickness is not reflected.

[0079] Reference Fig.10 In this embodiment, both the pre-installed anchor chain device 211 and the positioning anchor chain device 221 include a chain guide 600, which is located below the chain stopper 400 to guide the anchor chain 300. The chain stopper 400 includes an upper base 611, a lower base 612, a rotating pivot 621, a sprocket bracket 631 and a guide chain wheel 641. The upper base 611 and the lower base 612 are fixedly arranged on the side wall of the column, and the upper and lower ends of the rotating pivot 621 are respectively hingedly mounted on the upper base 611 and the lower base 612. The sprocket bracket 631 is fixed to the rotating pivot 621, and the guide chain wheel 641 is rotatably mounted on the sprocket bracket 631. It can be understood that when the floating wind power platform moves under the action of external forces such as wind, waves, and tides, the chain guide 600 can rotate accordingly, ensuring that the force direction of the chain stopper 400 and the lifting anchor machine 50 is stable.

[0080] Reference Figure 1 This embodiment also shows a floating wind power platform, and the floating wind power platform 100 is installed with the above-mentioned mooring system.

[0081] Reference Figures 1 to 12 , describing the mooring system installation method according to an embodiment of the present invention, installing the above mooring system includes the following steps:

[0082] The steps of installing the pre-installed anchor chain mooring group are as follows: the anchor chain 300 and the chain stopper 400 of the pre-installed anchor chain device 211 are installed, and the anchor chain 300 is fixed by the chain stopper 400. In the above mooring system, the hydraulic pump station 700 is configured according to the number of the positioning anchor chain mooring group 220, that is, each positioning anchor chain mooring group 220 is configured with a hydraulic pump station 700. When the chain stopper 400 of the pre-installed anchor chain device 211 is used, one of the hydraulic pump stations 700 is first installed on the first column 110 to supply oil to the chain stopper 400 and control the chain stopper 400. After the installation of the pre-installed anchor chain mooring group 210 is completed, the hydraulic pump station 700 is moved to another column position.

[0083] The steps of installing the pre-installed anchor chain device are as follows: installing the anchor chain 300, the chain stopper 400, the lifting anchor windlass 500 and the hydraulic pump station 700 of the positioning anchor chain device 221.

[0084] Anchoring step: anchoring each anchor chain 300 by using an anchoring device, and the anchoring device can be an anchoring boat.

[0085] Lifting anchor chain steps: Combine Figures 6 to 9It is understood that the anchor chain 300 is lifted by the lifting anchor machine 500 in the positioning anchor chain device 221, wherein the ratchet cylinder 526 drives the ratchet 524 to press the corresponding anchor chain 300, the gate knife 421 is turned to be in an open state, and the rocker cylinder 522 drives the ratchet 524 to extend the anchor chain 300; the gate knife 421 is turned to be in a closed state, the ratchet 524 is released, and the ratchet 524 and the rocker 523 are reset; and so on and so forth, until the tension of each anchor chain 300 is adjusted, and the positioning of the floating wind power platform 100 is completed. Among them, the hydraulic pump station 700 controls each positioning anchor chain device 221 of the positioning anchor chain mooring group 220 respectively, and then adjusts the tension of the anchor chain in each positioning anchor chain device 221 one by one to adjust the positioning of the floating wind power platform 100.

[0086] Among them, in the above-mentioned anchor chain lifting step, in some embodiments, the rotation of the knife 421 can be realized by relying on the reset function of the knife 421, combined with Figure 6 and Figure 7 It is understood that when the pawl 524 pushes the anchor chain 300 upward, the chain link of the anchor chain 300 will also push the knife 421, and the knife 421 will rotate to overcome the elastic force of the return spring 441 and enter the open state; if the chain link of the anchor chain 300 does not push the knife 421, the return spring 441 will drive the knife 421 to rotate, so that the stopper 422 is close to each other and respectively supports the anchor chain 300, and enters the closed state. In this embodiment, the rotation of the knife 421 is driven by the knife cylinder 431, which can reduce the driving load of the rocker cylinder 522, and there is no need to overcome the gravity of the knife 421 and the elastic force of the return spring 441.

[0087] The steps for removing the lifting anchor machine are as follows:

[0088] The blades 421 of each chain stopper 400 are locked and fixed to be in a closed state. Fig.11 Then, the pressure of the hydraulic pump station 700 is released, and then the pipe interface of the hydraulic hose is removed and sealed, and a threaded plug can be used for sealing.

[0089] like Fig.11 , loosen the second machine base 511 and the third machine base 521, specifically, remove the fasteners connected to the second base 123; then separate the rocker arm 523 from the sprocket 512.

[0090] The anchor chain 300 hanging on the sprocket 512 is lifted by a lifting device to disengage the anchor chain 300 from the sprocket 512, and then the rocker arm assembly 520 and the sprocket assembly 510 are removed. Fig.12 shown.

[0091] Steps for dismantling the hydraulic pump station: Loosen and remove the hydraulic pump station 700.

[0092] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A mooring system, characterized in that: include A pre-installed anchor chain mooring group, wherein the pre-installed anchor chain mooring group is installed on one of the columns of the floating wind power platform, and the pre-installed anchor chain mooring group includes at least one pre-installed anchor chain device; as well as A plurality of positioning anchor chain mooring groups, each of which is installed on the remaining columns of the floating wind power platform, and each of which includes at least one positioning anchor chain device; wherein: The pre-installed anchor chain device and the positioning anchor chain device both include the anchor chain and a chain stopper for locking the anchor chain, the chain stopper includes a first machine base directly or indirectly fixed to a column, two gate knives installed on the first machine base, the lower part of the gate knives is hinged to the first machine base, the upper part of the gate knives has a stopper for clamping the anchor chain, the first machine base is equipped with a gate oil cylinder connected to the gate knives to control the rotation of the gate knives, so that the gate knives have an open state and a closed state, when the gate knives are in the open state, there is a passage for the anchor chain to pass through between the two gate knives, when the gate knives are in the closed state, the stoppers on the upper parts of the two gate knives are close to each other and respectively support the anchor chain to lock the anchor chain; The anchor chain positioning device comprises a detachable lifting anchor machine, the lifting anchor machine comprises a sprocket assembly and a rocker assembly, the sprocket assembly comprises a second machine base detachably connected to a column directly or indirectly and a sprocket mounted on the second machine base, the rocker assembly comprises a third machine base detachably connected to the column directly or indirectly, a rocker cylinder mounted on the third machine base and a rocker connected to the rocker cylinder, one end of the rocker is hinged to the telescopic end of the rocker cylinder, the other end of the rocker is hinged to the sprocket, the rocker is equipped with a pawl, one end of the pawl is hinged to the rocker, the other end of the pawl has a pushing portion for clamping the anchor chain, the rocker is equipped with a pawl cylinder for controlling the rotation of the pawl, the anchor chain is lifted by controlling the rocker cylinder and the pawl cylinder to adjust the tension of the anchor chain; The positioning anchor chain mooring group also includes a detachable hydraulic pump station, which provides hydraulic oil to the knife cylinder, the rocker cylinder and the pawl cylinder through a hydraulic hose; The anchor chains of the pre-installed anchor chain mooring group and the positioning anchor chain mooring group are respectively extended outwards along the direction of each column to form a chain arrangement mode in which each anchor chain is respectively arranged around the circumference of the floating wind power platform.

2. The mooring system according to claim 1, characterized in that: The two ends of the lower part of the knife are respectively provided with a driving end and a reset end after passing through the first machine base, and the driving end is radially provided with a first connecting seat outward, one end of the knife gate cylinder is hinged to the first machine base, and the other end of the knife gate cylinder is hinged to the first connecting seat to push the knife gate to rotate through the knife gate cylinder.

3. The mooring system according to claim 2, characterized in that: The reset end is provided with a second connecting seat, the first machine seat is installed with a reset spring, one end of the reset spring is hinged to the first machine seat, and the other end of the reset spring is hinged to the second connecting seat, and the reset spring applies an elastic force to the stop parts of the gate knife to rotate closer to each other, so as to realize that the gate knife automatically cuts into a closed state.

4. The mooring system according to claim 3, characterized in that: The driving end or the reset end is provided with a third connecting seat, and the third connecting seat and the first machine base are both provided with pin holes for installing a stop safety pin, and the stop safety pin is inserted into the pin holes of the third connecting seat and the first machine base to limit the rotation of the knife gate, thereby locking and fixing the knife gate.

5. The mooring system according to claim 1, characterized in that: The pre-installed anchor chain device is provided with a first base fixed on the column, and the first machine base of the pre-installed anchor chain device is installed on the first base through fasteners; the positioning anchor chain device is provided with a second base fixed on the column, and the first machine base of the positioning anchor chain device is installed on the second base through fasteners, and the second machine base and the third machine base of the positioning anchor chain device are respectively installed on the second base through fasteners and distributed on both sides of the first machine base to achieve detachable connection.

6. The mooring system according to claim 1, characterized in that: The pre-installed anchor chain device and the positioning anchor chain device both include a chain guide, and the chain guide is located below the chain stopper to guide the anchor chain. The chain stopper includes an upper base, a lower base, a rotating pivot, a sprocket bracket and a guide chain wheel. The upper base and the lower base are fixedly arranged on the side walls of the column, and the upper and lower ends of the rotating pivot are respectively hingedly mounted on the upper base and the lower base, the sprocket bracket is fixed to the rotating pivot, and the guide chain wheel is rotatably mounted on the sprocket bracket.

7. The mooring system according to claim 1, characterized in that: One pre-installed anchor chain mooring group is provided, and the pre-installed anchor chain mooring group includes three pre-installed anchor chain devices; two positioning anchor chain mooring groups are provided, and the positioning anchor chain mooring group includes three positioning anchor chain devices.

8. A method for installing a mooring system, comprising installing the mooring system according to any one of claims 1 to 7, characterized in that: The following steps are involved: The step of installing the pre-installed anchor chain mooring group is as follows: installing the anchor chain and the chain stopper of the pre-installed anchor chain device, and fixing the anchor chain by the chain stopper; The step of installing the pre-installed anchor chain device is as follows: installing the anchor chain, the chain stopper, the lifting anchor machine and the hydraulic pump station of the positioning anchor chain device; Anchoring step: anchoring each of the anchor chains using an anchoring device; Anchor chain lifting step: the anchor chain is lifted by the lifting anchor windlass in the anchor chain positioning device, wherein the ratchet oil cylinder drives the ratchet to press the corresponding anchor chain, the gate knife is rotated to be in an open state, and the rocker arm oil cylinder drives the ratchet to extend the anchor chain; the gate knife is rotated to be in a closed state, the ratchet is released, and the ratchet and the rocker arm are reset; this process is repeated until the tension of each anchor chain is adjusted and the positioning of the floating wind power platform is completed; Steps for removing and lifting the anchor winch: locking and fixing the blades of each chain stopper to keep the blades in a closed state, and removing the pressure of the hydraulic pump station; removing the pipe interface of the hydraulic hose and sealing it; loosening the second machine base and the third machine base, and then separating the rocker arm from the sprocket, lifting the anchor chain hanging on the sprocket, and removing the rocker arm assembly and the sprocket assembly; Steps for dismantling the hydraulic pump station: loosen and remove the hydraulic pump station.

9. The mooring system installation method according to claim 8, characterized in that: The hydraulic pump station is configured according to the number of the positioning anchor chain mooring groups; The anchor chain of the pre-installed anchor chain device is installed in a pre-installed manner and locked by the chain stopper, wherein one of the hydraulic pump stations is used to control the chain stopper of the pre-installed anchor chain device; After completing the installation of the pre-installed anchor chain mooring group, each of the hydraulic pump stations is moved to the corresponding column position, and the hydraulic pump station controls each positioning anchor chain device of the positioning anchor chain mooring group respectively, and then adjusts the tension of the anchor chain in each positioning anchor chain device one by one to adjust the positioning of the floating wind power platform.

10. A floating wind power platform, characterized in that: The floating wind power platform is installed with a mooring system according to any one of claims 1 to 7.

Images