A floating vessel mooring chain tension monitoring arrangement

Abstract

The utility model discloses a kind of floating body mooring anchor chain tension monitoring arrangement structures, comprising: force arm and the anchor chain of three groups of quantity;The anchor chain is connected with force arm by shackle;Three groups of the anchor chain are connected with the middle part and left and right side of force arm respectively, since the anchor chain of force arm both sides is connected with floating body platform, make hydraulic swivel tension gauge not easily reach limit value, even if hydraulic swivel tension gauge exceeds limit value and disconnects after, force arm left anchor chain is connected with floating body platform to guarantee that floating body platform and suction anchor are moored and connected, solve the problem that tension gauge exceeds self limit and disconnects in use process, make floating body platform and suction anchor mooring connection failure.

Description

Technical Field

[0001] This utility model relates to a structure for monitoring the tension of anchor chains in floating mooring systems, and belongs to the field of construction technology for anchor chains in floating mooring systems. Background Technology

[0002] The floating foundation platform of a floating wind turbine is connected to multiple anchor chains. One end of each anchor chain is connected to a pile anchor or suction anchor driven into the seabed, while the other end is attached to the floating platform, constraining its movement. To monitor the anchor chain tension, tension monitoring devices must be installed on the anchor chains.

[0003] The existing technology of installing a tension monitoring device on the anchor chain, as described in Chinese patent application publication number CN116952439A, involves directly connecting a unidirectional tension gauge in series with the anchor chain. This can easily cause the tension gauge to break off due to exceeding its own limit during use, resulting in the failure of the mooring connection between the floating platform and the suction anchor. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a floating system mooring anchor chain tension monitoring arrangement structure.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a floating system mooring anchor chain tension monitoring arrangement structure, including: The lever arm and the anchor chain consisting of three sets.

[0007] The anchor chain is connected to the lever arm via a shackle; the three sets of anchor chains are respectively connected to the middle and left and right sides of the lever arm.

[0008] A hydraulic rotary tension gauge is installed in the middle of the anchor chain on the right side of the lever arm.

[0009] The lever arms include: a first lever arm, a second lever arm, and a third lever arm.

[0010] The hydraulic rotary force gauge includes an upper pull ring, a thrust ring, a locking ring, a force gauge, and a lower pull ring.

[0011] The force gauge includes a stress cylinder concave block, a stress cylinder convex block, a first sealing groove, a second sealing groove, a compression groove, and a pressure sensor mounting port.

[0012] The stress cylinder recess has a through-hole for mounting a pressure sensor on the radial side away from the cylindrical rod.

[0013] The beneficial effects of this utility model are as follows: Since the anchor chains on both sides of the lever arm are connected to the floating platform, the hydraulic rotary force gauge is less likely to reach its limit value. Even if the hydraulic rotary force gauge exceeds its limit value and disconnects, the anchor chain on the left side of the lever arm is connected to the floating platform to ensure the mooring connection between the floating platform and the suction anchor. This solves the problem of the force gauge disconnecting when it exceeds its own limit during use, causing the mooring connection between the floating platform and the suction anchor to fail. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main view distribution of this utility model; Figure 3 This is a schematic diagram of the front view distribution of the hydraulic rotary force gauge of this utility model; Figure 4 yes Figure 3 A sectional view along line AA. Figure 5 This is a schematic diagram of the upper pull ring of this utility model; Figure 6 This is a schematic diagram of the thrust ring structure of this utility model; Figure 7 This is a top view of the locking ring structure of this utility model; Figure 8 This is a bottom view of the locking ring structure of this utility model; Figure 9 This is a front view of the stress cylinder concave block and stress cylinder convex block of this utility model; Figure 10 yes Figure 9 Sectional view along line BB; Figure 11 This is a schematic diagram of the structure of the pull-down ring of this utility model; Figure 12 This is a schematic diagram of the component arm of this utility model. Detailed Implementation

[0015] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0016] like Figures 1 to 12 As shown.

[0017] This application discloses a floating system mooring anchor chain tension monitoring arrangement structure, comprising: The structure comprises a curved lever arm 3 and three sets of anchor chains 12. The anchor chains 12 are connected to the lever arm 3 via shackles 11. The anchor chain 12 in the middle of the lever arm 3 is used to connect to a suction anchor, while the anchor chains 12 on both sides of the lever arm 3 are used to connect to a floating platform. This presents a floating mooring anchor chain tension monitoring arrangement structure.

[0018] A hydraulic rotary tension gauge is installed in the middle of the anchor chain 12 on the right side of the lever arm 3. The hydraulic rotary tension gauge converts the tension of the anchor chain 12 into pressure and outputs it outward for monitoring.

[0019] The anchor chain 12 at the middle of the force-sharing arm 3 is connected to the suction anchor, and the anchor chains 12 on both sides of the force-sharing arm 3 are connected to the floating platform. When the anchor chain 12 in the middle of the force-sharing arm 3 is subjected to tension, the force is distributed to the anchor chains 12 on both sides of the force-sharing arm 3 through the force-sharing arm 3. The hydraulic rotary tension gauge installed in the middle of the right anchor chain 12 of the force-sharing arm 3 converts the tension into pressure and outputs it outward for monitoring. Since the anchor chains 12 on both sides of the force-sharing arm 3 are connected to the floating platform, the hydraulic rotary tension gauge is less likely to reach its limit value. Even if the hydraulic rotary tension gauge exceeds its limit value and disconnects, the anchor chain 12 on the left side of the force-sharing arm 3 is connected to the floating platform to ensure the mooring connection between the floating platform and the suction anchor. This solves the problem of the tension gauge disconnecting when it exceeds its own limit during use, causing the mooring connection between the floating platform and the suction anchor to fail.

[0020] When the anchor chain 12 is subjected to tensile force, a symmetrical triangular plate is used to connect to the anchor chain 12 (see Chinese Patent Publication No. CN217198550U). The average component of the force from the symmetrical triangular plate is transmitted to the hydraulic rotary tensile gauge, thereby reducing the measurement range of the hydraulic rotary tensile gauge.

[0021] The force-shaping arm of a tension monitoring device disclosed in this application is an asymmetrical triangular plate-based force-shaping arm, comprising: The three anchor arms are a first arm 31, a second arm 32, and a third arm 33. The first arm 31 is provided with a first pin hole 331, the second arm 32 is provided with a second pin hole 332, and the third arm 33 is provided with a third pin hole 333. The first pin hole 331, the second pin hole 332, and the third pin hole 333 are used to connect the three sets of anchor chains 12 through shackles 11.

[0022] The first lever arm 31 and the third lever arm 33 are integrally fixedly distributed on the left and right sides of the second lever arm 32. The third lever arm 33 is longer than the first lever arm 31, so that the horizontal distance between the center of the first pin hole 331 and the second pin hole 332 is L, and the horizontal distance between the center of the second pin hole 332 and the third pin hole 333 is n*L (n≥2).

[0023] When the anchor chain 12 in the middle of the force-sharing arm 3 is subjected to tension, with the second pin hole 332 as the pry point, the forces on the first force-sharing arm 31 and the second force-sharing arm 32 are centered on the pry point. The force-sharing arm of the third force-sharing arm 33 is longer than that of the first force-sharing arm 31. The tension on the anchor chain 12 on the left side of the force-sharing arm 3 is greater than that on the anchor chain 12 on the right side of the force-sharing arm 3. This results in a smaller force on the hydraulic rotary force gauge, which increases the measurement range of the hydraulic rotary force gauge. This solves the problem of the average force component of the symmetrical triangle plate being transmitted to the hydraulic rotary force gauge, thus reducing the measurement range of the hydraulic rotary force gauge.

[0024] The first lever arm 31 and the third lever arm 33 are relatively upward and inward, so that the first lever arm 31, the second lever arm 32 and the third lever arm 33 form an arc-shaped curved body.

[0025] This application discloses a hydraulic rotary force gauge, which includes an upper pull ring 21, a thrust ring 22, a locking ring 23, a force gauge 24, and a lower pull ring 25.

[0026] The upper pull ring 21 includes an O-ring 211, a connecting cap 212, a cylindrical rod 213, a retaining slot 214, and threaded holes 215. The O-ring 211 is connected to the shackle 11 collar, and the lower part of the O-ring 211 is fixedly connected to the connecting cap 212. A cylindrical rod 213 is integrally fixed below the connecting cap 212. The cylindrical rod 213 has a retaining slot 214 that surrounds it, and the lower part of the cylindrical rod 213 has several (usually four) threaded holes 215.

[0027] The thrust ring 22 is fitted into the bayonet 214. The thrust ring 22 is circular, with the diameter of the upper surface being larger than that of the lower surface, and the surrounding area forming a bevel.

[0028] The locking ring 23 includes a locking ring cap 231, a cylindrical groove 232, and a circular hole 233; the locking ring cap 231 has a partially open cylindrical groove 232 in the middle, so that the cylindrical rod 213 can be inserted into the cylindrical groove 232 and connected to it.

[0029] The lower part of the locking ring cap 231 has a through circular hole 233. The opening position of the circular hole 233 is on the same straight line as the center of the threaded hole 215, and the diameter of the circular hole 233 is slightly larger than that of the threaded hole 215.

[0030] By setting bolts to be inserted into the round hole 233 and the threaded hole 215 in sequence, and threadedly connected to the threaded hole 215, the locking ring 23 and the upper pull ring 21 are fixedly connected.

[0031] To achieve the monitoring of converting tension into pressure and outputting it outward, existing pressure detection technologies (see Chinese Patent Announcement No. CN106840723A) are prone to interference due to the sensor being located on the displacement output path.

[0032] The force gauge 24 is a hydraulic conversion force measuring structure. The force gauge 24 includes a stress cylinder concave block 241, a stress cylinder protrusion 242, a first sealing groove 243, a second sealing groove 244, a compression groove 245, and a pressure sensor mounting port 246.

[0033] The stress cylinder concave block 241 has a sliding groove in the middle to ensure that the stress cylinder protrusion 242 can slide in the sliding groove and form a compression groove 245 after being tightly fitted. The compression groove 245 can be compressed in volume when it is not filled with a medium, and is filled with a difficult-to-compress medium when it is in working state.

[0034] The top of the stress cylinder recess 241 has a number of positioning pin holes 2411, and positioning pins 2521 are installed in the positioning pin holes 2411 to position the outer shell 252 and the top of the stress cylinder recess 241.

[0035] The stress cylinder recess 241 has a first sealing groove 243 on the side away from the cylindrical rod 213, and the stress cylinder protrusion 242 has a second sealing groove 244 on the side close to the cylindrical rod 213. The first sealing groove 243 and the second sealing groove 244 are filled with sealing medium.

[0036] The stress cylinder recess 241 has a through pressure sensor mounting port 246 radially on the side away from the cylindrical rod 213, positioned higher than the first sealing groove 243. Within the measurement range of the tension gauge 2, the pressure sensor mounting port 246 communicates with the compression groove 245, meaning the upper surface of the stress cylinder protrusion 242 is always lower than the pressure sensor mounting port 246, ensuring the sensor can measure. A pressure sensor is fixedly mounted on the pressure sensor mounting port 246. The pressure sensor, located on the radial pressure sensor mounting port 246 of the stress cylinder recess 241, does not interfere with the displacement output path of the stress cylinder protrusion 242 and the stress cylinder recess 241, thus solving the problem of interference easily occurring when the sensor is located on the displacement output path.

[0037] The pull-down ring 25 includes a U-shaped pull ring 251, a housing 252, a hollow groove 253, and a mounting through hole 254.

[0038] The outer shell 252 is located below the connecting cap 212. A hollow groove 253 is opened in the middle of the outer shell 252. The outer shell 252 wraps around the cylindrical rod 213, the locking ring 23, and the force gauge 24 through the hollow groove 253 and can slide. The upper structure of the outer shell 252 fits and is movably engaged with the groove formed between it and the cylindrical rod 213, the force gauge 24, and the connecting cap 212.

[0039] The housing 252 is provided with a positioning pin 2521 inside, and the positioning pin hole 2411 and the positioning pin 2521 are engaged and locked together.

[0040] A U-shaped pull ring 251 is fixedly installed on the outer side of the outer shell 252. Under stress, the U-shaped pull ring 251 can cause the outer shell 252 to move downward. The U-shaped pull ring 251 is connected to the anchor chain 12 on the right side of the force-shaping arm 3.

[0041] When pressure sensors are used to display pressure, in order to protect the pressure sensors from being damaged by contact with the outside world, sometimes the pressure sensors are completely built-in for protection (see Chinese Patent Publication No. CN207080437U), which makes it inconvenient to replace the pressure sensors later.

[0042] The outer casing 252 has through mounting holes 254 on both sides. The pressure sensor is located inside the mounting holes 254. The width of the mounting holes 254 is greater than the sum of the width of the compression groove 245 and the pressure sensor body. When the outer casing 252 slides up and down, it ensures that the pressure sensor does not touch the mounting holes 254. The pressure sensor is not completely built-in when it is in the space of the mounting holes 254 of the outer casing 252 and has a certain protective environment. This makes it easy to replace the pressure sensor and solves the problem of inconvenience in replacing the pressure sensor when it is completely built-in in the prior art.

[0043] When in use, when the upper pull ring 21 and the lower pull ring 25 are under tension, the lower pull ring 25, the upper pull ring 21, the thrust ring 22, and the locking ring 23 form a whole with a tendency to move relative to each other. This will cause the compression groove 245 of the force gauge 24 to be squeezed, and the pressure inside the compression groove 245 cavity will increase. The pressure can be monitored by an external pressure sensor. The tension on the force gauge 2 can be calculated by the relationship between pressure and area. Then, the tension on the anchor chain can be obtained through mechanical principles.

Claims

1. A structure for monitoring the tension of anchor chains in a floating mooring system, characterized in that, include: The lever arm (3) and the anchor chain (12) in three sets; The anchor chain (12) is connected to the lever arm (3) via a shackle (11); the three sets of anchor chains (12) are respectively connected to the middle and left and right sides of the lever arm (3); A hydraulic rotary tension gauge is installed in the middle of the anchor chain (12) on the right side of the lever arm (3); The lever arms include: a first lever arm (31), a second lever arm (32), and a third lever arm (33); The hydraulic rotary force gauge includes an upper pull ring (21), a thrust ring (22), a locking ring (23), a force gauge (24), and a lower pull ring (25).

2. The floating mooring anchor chain tension monitoring arrangement structure as described in claim 1, characterized in that: The force gauge (24) includes a stress cylinder recess (241), a stress cylinder protrusion (242), a first sealing groove (243), a second sealing groove (244), a compression groove (245), and a pressure sensor mounting port (246).

3. The floating mooring anchor chain tension monitoring arrangement structure as described in claim 2, characterized in that: The stress cylinder recess (241) has a through pressure sensor mounting port (246) on the radial side away from the cylindrical rod (213).

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