Large tidal range self-adaptive lifting type mooring system

Abstract

The invention discloses a large tidal range self-adaptive lifting type mooring system, and relates to the technical field of mooring systems, the large tidal range self-adaptive lifting type mooring system comprises a fixed anchor block, a lifting anchor block, a self-adaptive structure, a connecting mooring rope and a mooring mooring rope; the weight of the lifting anchor block is smaller than that of the fixed anchor block; the self-adaptive structure comprises a mooring frame, a mooring rope channel is arranged on the mooring frame, one end of a connecting mooring rope is connected with the fixed anchor block, the other end of the connecting mooring rope penetrates through the mooring rope channel in a sliding mode and is connected with the lifting anchor block, and a mooring rope is connected with a mooring object and the mooring frame. In the dynamic change of the moored object along with the wind direction, surge and water flow, the moored object drags the self-adaptive structure through the moored cable, the height of the lifting anchor block relative to the fixed anchor block is changed so as to adapt to the relative height between the moored object and the fixed anchor block, the tension borne by the moored cable is kept stable, buffering between the moored object and the fixed anchor block is achieved, and therefore the moored object and the fixed anchor block can be fixed. Therefore, the mooring rope can control the moored object to be kept at the preset position, and the displacement and overturning risks of the moored object are effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mooring system, in particular to a large tide difference adaptive lifting mooring system. BACKGROUND

[0002] In the field of ocean engineering, single-point mooring and multi-point mooring are the two most widely used mooring technologies. Single-point mooring system fixes the mooring object to a fixed or floating structure in the form of single-point connection, allowing the mooring object to rotate freely around the connection point by 360°, and can maintain a relatively stable fixed position in complex sea conditions. However, this technology has significant defects in extreme weather conditions - the anchor chain and the cable need to bear an extraordinary tension, which not only requires a very high strength of the mooring cable, but also results in high overall cost due to the large total length of the cable and low actual utilization rate. In addition, the mooring cable usually enters the sea from one side of the mooring object, and when the tension of the mooring cable is too large, the anchor chain and the cable pull the mooring object from one side, which may cause the mooring object to overturn. When the water level is low, the mooring cable has a large redundant length, which may cause the mooring object to deviate from the predetermined position.

[0003] In contrast, the multi-point mooring system uses multiple anchor points to fix the mooring object, but this way limits the freedom of the mooring object, making it difficult to adapt to the dynamic changes of wind direction, wave surge and water flow. Therefore, this technology is only suitable for specific sea areas with large water depth, good shelter conditions and relatively stable hydrological environment, and has obvious limitations in application scenarios.

[0004] In the face of increasingly complex marine operation requirements, it is necessary to develop a mooring system that can adapt to large tide difference environment, control the mooring object to maintain the predetermined position under the comprehensive action of wind, wave, flow and other natural forces, effectively avoid displacement and overturning risk, and balance the mooring stability and economic feasibility, which has become a core technical problem to be solved in the field of ocean engineering. SUMMARY

[0005] To solve the above technical problems, the present application provides a large tide difference adaptive lifting mooring system, which controls the mooring object to maintain the predetermined position and effectively avoids displacement and overturning risk.

[0006] To achieve the above purpose, the present application provides the following solutions:

[0007] The present application provides a large tide difference adaptive lifting mooring system, which comprises

[0008] A fixed anchor block;

[0009] A lifting anchor block, the weight of the lifting anchor block is less than the weight of the fixed anchor block;

[0010] An adaptive structure comprising a mooring frame, the mooring frame is provided with a cable passage;

[0011] A connecting cable, one end of which is connected to the fixed anchor block, and the other end of which slides through the cable channel and is connected to the lifting anchor block;

[0012] A mooring rope has one end connected to the mooring object and the other end connected to the mooring frame.

[0013] Optionally, a limiting structure is provided on the connecting cable, and the limiting structure is located between the lifting anchor block and the cable channel.

[0014] Optionally, a sheave is provided on the mooring frame, and an annular groove is provided on the circumferential outer wall of the sheave toward the center of the sheave to form the cable channel.

[0015] Optionally, a sheave shaft is provided on the sheave, the sheave is rotatably provided on the sheave shaft, and the sheave shaft is connected to the mooring frame.

[0016] Optionally, the sheave shaft includes a shaft and a first flange; the sheave is rotatably arranged in the middle of the shaft, and the first flange is provided at the end of the shaft; a second flange is provided on the mooring frame, and the first flange is connected to the second flange.

[0017] Optionally, an anti-slip structure is provided on the rope pulley.

[0018] Optionally, a fixed bollard is provided on the fixed anchor block, and a lifting bollard is provided on the lifting anchor block. One end of the connecting cable is connected to the fixed bollard, and the other end of the connecting cable is connected to the lifting bollard.

[0019] Optionally, a receiving cavity is provided on a side of the fixed anchor block facing the lifting anchor block, and the lifting anchor block is located in the receiving cavity when it is at the lowest position.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] When using the large tidal range adaptive lifting mooring system of the present invention, as the moored object changes with the dynamic changes of wind direction, surge and water flow, the relative position between the moored object and the fixed anchor block tends to change. Since the length of the mooring cable remains unchanged, in order to adapt to the changing trend, the relative height between the mooring frame and the fixed anchor block tends to change, and the length of the connecting cable between the cable channel and the fixed anchor block tends to change accordingly. Since the connecting cable pulls the fixed anchor block and the lifting anchor block at the same time, and the weight of the lifting anchor block is less than the weight of the fixed anchor block, at this time, the lifting anchor block is relatively close to the fixed anchor block. The anchor block moves. With the movement of the lifting anchor block, the relative height between the mooring frame and the fixed anchor block changes accordingly, and the relative position between the moored object and the fixed anchor block changes, and finally the tension of the mooring cable remains stable. When the water level is high, the mooring cable is prevented from pulling the moored object downward from one side, which puts the moored object at risk of capsizing. When the water level is low, the redundant length of the mooring cable is prevented from being too large, which causes the moored object to deviate from the predetermined position, and a buffer is achieved between the moored object and the fixed anchor block, so that the mooring cable can control the moored object to remain in the predetermined position, effectively avoiding the displacement and capsizing risk of the moored object. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the large tidal range adaptive lifting mooring system of the present invention;

[0024] Figure 2 This is a schematic diagram of the main structure of the large tidal range adaptive lifting mooring system of the present invention;

[0025] Figure 3 This is a schematic top view of the structure of the large tidal range adaptive lifting mooring system of the present invention;

[0026] Figure 4 Detailed diagram of the sheave and sheave shaft structure in the large tidal range adaptive lifting mooring system of the present invention;

[0027] Figure 5 This is a structural diagram of the sheave frame in the large tidal range adaptive lifting mooring system of the present invention;

[0028] Figure 6 This is a schematic top view of the structure of the large tidal range adaptive lifting mooring system of the present invention, with the lifting anchor block at the lowest position;

[0029] Figure 7 Fig. 1 is a schematic view of the top structure of a rope wheel frame in a large tidal difference adaptive lifting mooring system according to the present application.

[0030] Legend:

[0031] 1, fixed anchor block; 2, lifting anchor block; 3, connecting cable; 4, limiting block; 5, rope wheel; 6, rope wheel shaft; 7, mooring frame; 8, mooring cable;

[0032] 1-1, fixed mooring bitt; 2-1, lifting mooring bitt; 6-1, shaft; 6-2, first flange; 7-1, second flange. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] As shown in Figures 1 to 7 The present embodiment provides a large tidal difference adaptive lifting mooring system, which comprises a fixed anchor block 1, a lifting anchor block 2, an adaptive structure, a connecting cable 3 and a mooring cable 8. The weight of the lifting anchor block 2 is less than that of the fixed anchor block 1. The adaptive structure comprises a mooring frame 7, which is provided with a cable passage. One end of the connecting cable 3 is connected with the fixed anchor block 1, and the other end of the connecting cable 3 is slidably penetrated through the cable passage and connected with the lifting anchor block 2. One end of the mooring cable 8 is connected with a moored object, and the other end of the mooring cable 8 is connected with the mooring frame 7.

[0035] When the mooring object changes its relative position with the fixed anchor block 1 due to the dynamic changes of the wind direction, wave surge and water flow, and the relative height between the mooring frame 7 and the fixed anchor block 1 changes to adapt to the change trend, the length of the connecting cable between the cable channel and the fixed anchor block changes accordingly, and since the connecting cable 3 pulls the fixed anchor block 1 and the lifting anchor block 2 at the same time, and the weight of the lifting anchor block 2 is less than that of the fixed anchor block 1, at this time, the lifting anchor block 2 moves relative to the fixed anchor block 1, and with the movement of the lifting anchor block 2, the relative height between the mooring frame 7 and the fixed anchor block 1 changes, and further changes the relative position between the mooring object and the fixed anchor block 1, and finally keeps the tension of the mooring cable 8 stable. When the water level is high, it prevents the mooring cable 8 from pulling the mooring object downward from one side, which may cause the mooring object to overturn, and when the water level is low, it prevents the mooring cable 8 from having a large redundant length, which may cause the mooring object to deviate from the predetermined position and achieve the buffering between the mooring object and the fixed anchor block 1, so that the mooring cable 8 can control the mooring object to remain in the predetermined position, effectively avoiding the displacement and overturning risk of the mooring object.

[0036] In a more specific embodiment, the mooring frame 7 is provided with a rope wheel 5, and an annular groove is formed on the circumferential outer wall of the rope wheel 5, which is arranged towards the center of the rope wheel 5 to form a cable channel. The rope wheel 5 is provided with a rope wheel shaft 6, and the rope wheel shaft 6 is rotatably connected with the mooring frame 7.

[0037] The rope wheel shaft 6 includes a shaft 6-1 and a first flange 6-2; the rope wheel 5 is rotatably arranged at the middle part of the shaft 6-1, and the end part of the shaft 6-1 is provided with the first flange 6-2; the mooring frame 7 is provided with a second flange 7-2, and the first flange 6-2 is connected with the second flange 7-2.

[0038] More specifically, as Figure 1As shown, the mooring system in this embodiment includes a lifting anchor block 2, the weight of the lifting anchor block 2 is less than the weight of the fixed anchor block 1, the lifting anchor block 2 is provided with three lifting mooring bitts 2-1 around, the fixed anchor block 1 is provided with three fixed mooring bitts 1-1 around, and the mooring frame 7 is provided with three rope wheels 5; one end of the three connecting ropes 3 is connected with one fixed mooring bitt 1-1 respectively, and the other end is connected with one lifting mooring bitt 2-1 after passing through one rope wheel 5 respectively. When the moored object changes dynamically with the wind direction, surge and water flow, the moored object pulls the mooring frame 7 through the mooring rope 8, and with the change of the relative height between the mooring frame 7 and the fixed anchor block 1, the length of the part of the connecting rope 3 between the fixed anchor block 1 and the mooring frame 7 changes, and under the action of the gravity of the lifting anchor block 2, the connecting rope 3 moves around the rope wheel 5, so that the lengths of the connecting ropes 3 on both sides of the rope channel are complementary, so that the weight of the lifting anchor block 2 can always act on the mooring frame 7 through the connecting rope 3, and then the mooring object is pulled through the mooring rope 8, so that the mooring object can be kept in the predetermined position, and the displacement and overturning risk of the mooring object can be effectively avoided.

[0039] Further, the middle part of the fixed anchor block 1 is provided with a containing hole, and the lifting anchor block 2 can enter the containing hole completely when it is in the lowest position, which can not only increase the lifting range of the lifting anchor block 2 and improve the adaptability of the mooring system to the water level, but also reduce the impact between the lifting anchor block 2 and the fixed anchor block 1, thereby protecting the lifting anchor block 2 and the fixed anchor block 1. More specifically, the fixed anchor block 1 is a cylindrical structure, the containing hole is a hollow part in the middle part of the cylindrical structure, and the lifting anchor block is a cylindrical structure.

[0040] In other more specific embodiments, a plurality of lifting anchor blocks 2 are arranged around the fixed anchor block 1, and the total weight of the plurality of lifting anchor blocks 2 is less than the weight of the fixed anchor block 1. One end of the connecting rope 3 is connected with the fixed mooring bitt 1-1 on the fixed anchor block 1, and the other end enters the rope channel from the inner side of the mooring frame 7 and is connected with the lifting mooring bitt 2-1 located in the middle part of the lifting anchor block 2 after extending out from the outer side of the mooring frame 7. Without the containing hole in the middle part of the fixed anchor block 1, the impact between the lifting anchor block 2 and the fixed anchor block 1 can be reduced, which is conducive to enhancing the structural strength of the fixed anchor block 1 and avoiding the breaking of the fixed anchor block 1.

[0041] In order to prevent the lifting anchor block 2 from colliding with the mooring frame 7, a limiting structure is arranged on the connecting rope 3, and the limiting structure is located between the lifting anchor block 2 and the rope channel. Specifically, the limiting structure includes a limiting block 4 fixed on the connecting rope 3, and the limiting block 4 can be a cement block or a metal block resistant to seawater corrosion, such as a stainless steel block.

[0042] In order to prevent the connecting cable 3 from being detached from the rope wheel 5, causing the rope wheel 5 to be jammed by the connecting cable 3, a detachment-preventing structure is arranged on the rope wheel 5. The detachment-preventing structure includes a detachment-preventing wheel or a detachment-preventing baffle arranged at the position where the cable passage contacts the connecting cable 3, as long as the structure can prevent the connecting cable 3 from being detached from the rope wheel 5.

[0043] It is to be understood that the application is not limited to the details of the above-exemplified embodiments and can be implemented in various other forms without departing from the spirit or essential characteristics of the application. The embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are meant to be covered by the claims. No feature of the application is to be construed as limiting the scope of the claims to its precise configuration set forth herein.

[0044] The principles and implementations of the present application are described in the specification by specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation and application range will have changes. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A high tidal range adaptive lifting mooring system, characterized in that: include Fixed anchor block; a lifting anchor block, the weight of the lifting anchor block being less than the weight of the fixed anchor block; An adaptive structure includes a mooring frame provided with a cable channel; A connecting cable, one end of which is connected to the fixed anchor block, and the other end of which slides through the cable channel and is connected to the lifting anchor block; A mooring rope has one end connected to the mooring object and the other end connected to the mooring frame.

2. The large tidal range adaptive lifting mooring system according to claim 1, characterized in that: A limiting structure is provided on the connecting cable, and the limiting structure is located between the lifting anchor block and the cable channel.

3. The large tidal range adaptive lifting mooring system according to claim 1, characterized in that: A rope pulley is provided on the mooring frame, and an annular groove is provided on the circumferential outer wall of the rope pulley toward the center of the rope pulley to form the cable channel.

4. The large tidal range adaptive lifting mooring system according to claim 3, characterized in that: The rope wheel is provided with a rope wheel shaft, the rope wheel is rotatably arranged on the rope wheel shaft, and the rope wheel shaft is connected to the mooring frame.

5. The large tidal range adaptive lifting mooring system according to claim 4, characterized in that: The sheave shaft includes a shaft and a first flange; the sheave is rotatably arranged in the middle of the shaft, and the first flange is arranged at the end of the shaft; a second flange is arranged on the mooring frame, and the first flange is connected to the second flange.

6. The large tidal range adaptive lifting mooring system according to claim 3, characterized in that: The rope pulley is provided with an anti-slip structure.

7. The large tidal range adaptive lifting mooring system according to claim 1, characterized in that: The fixed anchor block is provided with a fixed bollard, and the lifting anchor block is provided with a lifting bollard. One end of the connecting cable is connected to the fixed bollard, and the other end of the connecting cable is connected to the lifting bollard.

8. The large tidal range adaptive lifting mooring system according to claim 1, characterized in that: A receiving cavity is provided on one side of the fixed anchor block facing the lifting anchor block, and the lifting anchor block is located in the receiving cavity when it is at the lowest position.

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