A deep water hoisting device and a construction method thereof

Abstract

The application discloses a deep-water hoisting device and a construction method thereof. The deep-water hoisting device comprises a first hoisting beam, a second hoisting beam, a hoisting arm and a deck. The deck is provided with a hoisting beam storage area and a sling storage area. The first hoisting beam and the second hoisting beam are connected by a first sling and a second sling at two ends respectively. The first hoisting beam is connected with the hoisting arm through a third sling. The hoisting arm hoists the first hoisting beam and the second hoisting beam, so that the second hoisting beam is placed on a hanging buckle on the deck. The first hoisting beam is separated from the second hoisting beam. The first hoisting beam is connected with a plurality of third hoisting beams, so that the plurality of third hoisting beams are connected with the second hoisting beam. The plurality of third hoisting beams are placed on the hanging buckle in sequence. The second hoisting beam is connected with a hoisted object through a fourth sling and a fifth sling, so that the hoisted object is lowered to the seabed. The deep-water hoisting device provided by the application places the hoisting beam on the hanging buckle through the hoisting arm, realizes in-situ hoisting of the hoisted object on the seabed, and the hoisting slings and the hoisting beam can be recycled after hoisting, thereby saving resources.

Description

Technical Field

[0001] This invention belongs to the field of marine oil engineering, and particularly relates to a deep-water hoisting device and its construction method. Background Technology

[0002] As my country's offshore oil development continues to advance into deep water, the demand for lifting deep-water underwater structures is also increasing. Currently, the common practice is to modify the rope threading method of the floating crane hook, reduce the number of ropes threaded through pulleys to obtain more rope length, and install AR winches with large-capacity drums on the side of the vessel.

[0003] Changing the rope threading method of the floating crane hook and reducing the number of ropes threaded through pulleys can increase the diving depth of the hook, but it sacrifices the lifting capacity of the hook and is limited by the capacity of the drum, making it unsuitable for deep-sea operations. Adding an AR winch to the side of the ship and equipping it with a large-capacity drum is costly and limited by the winch's capacity, making it only suitable for underwater installation of small structures.

[0004] Therefore, there is an urgent need to design a deep-water hoisting device to solve the problem mentioned above that it cannot adapt to seabed operations in deep water areas. Summary of the Invention

[0005] To address the technical problem mentioned in the background art of being unable to adapt to deep-water seabed operations, a deep-water lifting device is provided to solve the problem of deep-water lifting. To achieve the above objectives, the specific technical solution of the deep-water hoisting device of the present invention is as follows:

[0006] A deep-water lifting device includes a first lifting beam, a second lifting beam, a lifting boom, and a deck. The deck has a lifting beam storage area and a sling storage area. The first and second lifting beams are connected at both ends by a first sling and a second sling, respectively. The first lifting beam is connected to the lifting boom via a third sling. The lifting boom lifts the first and second lifting beams so that the second lifting beam is placed on a hook on the deck. The first and second lifting beams are separated. The first lifting beam is connected to multiple third lifting beams so that the multiple third lifting beams are connected to the second lifting beam. The multiple third lifting beams are placed sequentially on the hook. The second lifting beam is connected to the object to be lifted via a fourth sling and a fifth sling to lower the object to the seabed.

[0007] Furthermore, both sides of the first and second lifting beams are provided with symmetrical inner and outer slots. The outer slots at both ends of the first lifting beam and the inner slots at both ends of the second lifting beam are connected by the first and second lifting cables, respectively.

[0008] Furthermore, the inner and outer slots at both ends of the lifting beam body are composed of three identical ear plates spaced apart.

[0009] Furthermore, the ear plate is provided with multiple pin holes, and the pin holes of adjacent ear plates are set accordingly. The pin passes through the pin holes of adjacent ear plates so that the first sling and the second sling are stably connected to the inner groove and the outer groove, respectively.

[0010] Furthermore, the hooks are spaced on one side of the deck, with one side of the hooks fixedly connected to the deck, and the side of the hooks away from the deck extending out of the deck, so that the second lifting beam can be placed on the hooks.

[0011] Furthermore, the hook has a groove on the side extending out of the deck, with the groove opening upwards, so that the second lifting beam can be suspended and placed in the groove.

[0012] Furthermore, a notch is provided on one side of the hook groove, extending towards the deck side, so that the second lifting beam can be lifted towards the deck side.

[0013] Furthermore, the lifting boom is rotatably mounted on the floating crane vessel. The lifting boom is equipped with a hook, and the inner slots at both ends of the first lifting beam are connected to the third sling. The hook lifts the third sling, so that the first lifting beam can move between the lifting beam storage area, the sling storage area, and the hook. A construction method for a deep-water hoisting device mainly includes the following steps: S1, the hook of the lifting boom is connected to the first lifting beam through the third sling, and the two ends of the third sling are connected to the two ends of the first lifting beam; S2, the crane boom lifts the first lifting beam, and takes the first and second slings from the deck sling storage area. The first and second slings are then connected to both ends of the first lifting beam. S3, hoist the first lifting beam and the first and second lifting cables connected at both ends together to the lifting beam storage area, and connect the ends of the first and second lifting cables away from the first lifting beam to the two ends of the second lifting beam; S4, the lifting boom lifts the first and second lifting beams, and takes the fourth and fifth lifting cables from the sling storage area and connects them to both ends of the second lifting beam; S5, the lifting boom lifts the first and second lifting beams above the object being lifted, and connects the fourth and fifth slings to the object being lifted at the ends away from the second lifting beam; S6, place the second lifting beam on the hook, and remove the first and second slings connected to both ends of the second lifting beam; S7, the lifting boom lifts the first lifting beam, the first sling and the second sling, and moves them to the sling storage area. The ends of the first sling and the second sling away from the first lifting beam are connected to the two ends of the third lifting beam. S8, the lifting boom lifts the first and third lifting beams, and takes the sixth and seventh lifting cables from the sling storage area and connects them to both ends of the third lifting beam; S9, the lifting boom lifts the first and third lifting beams, and connects the end of the sixth and seventh slings away from the third lifting beam to both ends of the second lifting beam;

[0014] S10, the crane boom lifts the first and third lifting beams so that the second lifting beam is disengaged from the hook and the third lifting beam is placed on the hook to lower the load to the seabed.

[0015] Furthermore, pins are inserted into the pin holes on the ear plates on both sides of the inner and outer slots at both ends of the first and third lifting beams to prevent the slings from falling off. The deep-water hoisting device and its construction method of the present invention have the following advantages:

[0016] The lifting beam is hoisted by the boom and placed at the hook, thus achieving the underwater positioning of the suspended object. The lifting slings and beams can be recovered and reused, saving resources. The lifting beams are connected by additional slings to adapt to different seawater depths and allow for flexible adjustment of sling lengths, solving the engineering problem of positioning suspended objects in deep water. Attached Figure Description Figure 1 This is a front view of the deep-water hoisting device of the present invention; Figure 2 This is a top view of the deep-water hoisting device of the present invention; Figure 3 This is a perspective view of the hook of the deep-water hoisting device of the present invention; Figure 4 This is a perspective view of the lifting beam of the deep-water hoisting device of the present invention;

[0017] Figure 5 This is a front view of the lifting beam of the deep-water hoisting device of the present invention. Explanation of markings in the diagram:

[0018] 1. Lifting boom; 2. Deck; 3. First lifting beam; 4. Second lifting beam; 5. Third lifting beam; 6. Lifting beam storage area; 7. Sling storage area; 8. First sling; 9. Second sling; 10. Third sling; 11. Fourth sling; 12. Fifth sling; 13. Sixth sling; 14. Seventh sling; 15. Hook; 16. Lifted object; 17. Lifting beam body; 18. Ear plate; 19. Pin hole; 20. Pin; 21. Floating crane vessel. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0021] The following is a reference to the appendix. Figure 1 To be continued Figure 5 The deep-water hoisting apparatus of the present invention is described.

[0022] like Figure 1 and Figure 2 As shown, the deep-water lifting device of this invention includes a first lifting beam 3, a second lifting beam 4, a lifting boom 1, and a deck 2. The deck 2 has a lifting beam storage area 6 and a sling storage area 7. The first lifting beam 3 and the second lifting beam 4 are connected at both ends by a first sling 8 and a second sling 9, respectively. The first lifting beam 3 is connected to the lifting boom 1 via a third sling 10. The lifting boom 1 lifts the first lifting beam 3 and the second lifting beam 4, placing the second lifting beam 4 onto a hook 15 on the deck 2. The first lifting beam 3 and the second lifting beam 4 are then separated. The first lifting beam 3 is connected to multiple third lifting beams 5, connecting the multiple third lifting beams 5 to the second lifting beam 4. The multiple third lifting beams 5 are sequentially placed onto the hook 15. The second lifting beam 4 is connected to the object to be lifted 16 via a fourth sling 11 and a fifth sling 12, lowering the object to be lifted 16 to the seabed. This device uses the lifting boom 1 to lift the lifting beams and place them at the hook 15, achieving the seabed positioning of the object to be lifted 16. The lifting slings and beams can be recovered and reused, saving resources. The lifting beams are connected by additional slings to adapt to different seawater depths and allow for flexible adjustment of the sling length, thus solving the engineering problem of positioning objects suspended in deep sea.

[0023] Furthermore, such as Figure 1 and Figure 5As shown, both sides of the lifting beam body 17 of the first lifting beam 3 and the second lifting beam 4 are provided with symmetrical inner and outer grooves. The outer grooves at both ends of the first lifting beam 3 and the inner grooves at both ends of the second lifting beam 4 are connected by the first lifting cable 8 and the second lifting cable 9, respectively. The inner and outer grooves at both ends of the lifting beam body 17 are formed by three identical ear plates 18 spaced apart. The ear plates 18 are provided with multiple pin holes 19, and the pin holes 19 of adjacent ear plates 18 are correspondingly arranged. The pins 20 pass through the pin holes 19 of adjacent ear plates 18 so that the first lifting cable 8 and the second lifting cable 9 are stably connected to the inner and outer grooves, respectively. In this embodiment, the first lifting beam 3 and the second lifting beam 4 have the same structure, both consisting of a lifting beam body 17 and multiple ear plates 18. The two ends of the lifting beam body 17 are respectively formed by the ear plates 18 arranged at intervals to form symmetrical inner and outer slots. The inner and outer slots are spaced at the same distance, so that the first lifting cable 8 and the second lifting cable 9 are connected to the outer slots at both ends of the first lifting beam 3. The ends of the first lifting cable 8 and the second lifting cable 9 away from the first lifting beam 3 are connected to the inner slots at both ends of the second lifting beam 4.

[0024] Multiple pin holes 19 are evenly distributed on the ear plate 18, and the pin holes 19 on adjacent ear plates 18 correspond one-to-one. When the first sling 8 and the second sling 9 are connected to the inner groove and the outer groove, pins 20 are inserted into the pin holes 19 to prevent the first sling 8 and the second sling 9 from detaching from the inner groove and the outer groove when they are connected, thus ensuring the stability of the hoisting.

[0025] Furthermore, such as Figure 3 As shown, hooks 15 are spaced apart on one side of the deck 2. One side of the hooks 15 is fixedly connected to the deck 2. The side of the hooks 15 away from the deck 2 extends out of the deck 2 so that the second lifting beam 4 can be suspended on the hooks 15. The side of the hooks 15 extending out of the deck 2 has a groove with the opening facing upward so that the second lifting beam 4 can be suspended in the groove. The side of the groove of the hooks 15 has a notch that extends towards the side of the deck 2 so that the second lifting beam 4 can be lifted towards the side of the deck 2.

[0026] In this embodiment, multiple hooks 15 are spaced apart on the deck 2, evenly distributed, and at a consistent horizontal height. One end of each hook 15 is fixedly connected to the deck 2, and the other end extends out of the deck 2. The end extending out of the deck 2 has a groove, which is an annular shape with an upward opening, to match the external shape of the lifting beam body 17, allowing the lifting beam body 17 to be stably placed within the groove. A notch is provided on the hook 15 body near the side of the groove on the deck 2 side. The opening of the notch extends towards the side of the deck 2, allowing the second lifting beam 4 to be lifted along one side of the deck 2. The notch also prevents the second lifting beam 4 from detaching when being lifted upwards, thus acting as a barrier.

[0027] Furthermore, such as Figure 1 and Figure 4As shown, the lifting boom 1 is rotatably mounted on the floating crane vessel 21. The lifting boom 1 is equipped with a hook. The inner slots at both ends of the first lifting beam 3 are connected to the third sling 10. The hook lifts the third sling 10, allowing the first lifting beam 3 to move between the lifting beam storage area 6, the sling storage area 7, and the hook 15. In this embodiment, the inner slots at both ends of the first lifting beam 3 are connected to the two ends of the third sling 10. The hook of the lifting boom 1 lifts the third sling 10 to lift the first lifting beam 3. The lifting boom 1 is rotatably mounted on the floating crane vessel 21, allowing the first lifting beam 3 to move between the lifting beam storage area 6 and the sling storage area 7 to add slings and beams; it then moves above the hook 15 to perform the lifting and lowering operation on the beam placed on the hook 15. Both the beam and sling can be recycled and reused, saving resources and reducing construction costs. The hook of the lifting boom 1 completes the placement and installation of the seabed structure above the water surface, ensuring that the hook does not enter the water and its capacity is not reduced. This application also provides a construction method for a deep-water hoisting device, which mainly includes the following steps; S1, the hook of the lifting boom 1 is connected to the first lifting beam 3 through the third sling 10, and both ends of the third sling 10 are connected to the inner groove of the first lifting beam 3; S2, the lifting boom 1 lifts the first lifting beam 3, and takes the first sling 8 and the second sling 9 from the sling storage area 7 of the deck 2. The first sling 8 and the second sling 9 are respectively connected to the outer groove of the first lifting beam 3. S3, hoist the first lifting beam 3 and the first lifting cable 8 and the second lifting cable 9 connected at both ends to the lifting beam storage area 6, and connect the ends of the first lifting cable 8 and the second lifting cable 9 away from the first lifting beam 3 to the inner groove of the second lifting beam 4; S4, the lifting boom 1 lifts the first lifting beam 3 and the second lifting beam 4, and takes the fourth lifting cable 11 and the fifth lifting cable 12 from the sling storage area 7 and connects them to the outer groove of the second lifting beam 4; S5, lifting boom 1 lifts first lifting beam 3 and second lifting beam 4 above the object 16, and connects the fourth sling 11 and the fifth sling 12 away from the second lifting beam 4 to the object 16; S6, lifting boom 1 lifts the first lifting beam 3 and the second lifting beam 4, rotates lifting boom 1, places the second lifting beam 4 on hook 15, and removes the first sling 8 and the second sling 9 connected to the inner groove of the second lifting beam 4; S7, the lifting boom 1 lifts the first lifting beam 3, the first sling 8 and the second sling 9 and moves them to the sling storage area 7. The ends of the first sling 8 and the second sling 9 away from the first lifting beam 3 are connected to the inner groove of the third lifting beam 5. S8, lifting boom 1 lifts the first lifting beam 3 and the third lifting beam 5, and takes the sixth lifting cable 13 and the seventh lifting cable 14 from the sling storage area 7 and connects them to the outer slots at both ends of the third lifting beam 5; S9, lifting boom 1 lifts the first lifting beam 3 and the third lifting beam 5, and connects the end of the sixth lifting cable 13 and the seventh lifting cable 14 away from the third lifting beam 5 to the inner groove of the second lifting beam 4;

[0028] S10, the lifting boom 1 lifts the first lifting beam 3 and the third lifting beam 5 so that the second lifting beam 4 is disengaged from the hook 15 and the third lifting beam 5 is placed on the hook 15 so that the object to be lifted 16 is lowered to the seabed.

[0029] Finally, with the help of an ROV robot, the second lifting beam 4 was detached from the object 16 on the seabed, and the lifting boom 1 gradually retrieved the lifting beam and slings upwards, thus completing the underwater lifting of the object.

[0030] Furthermore, such as Figure 5 As shown, pins 20 are inserted into the pin holes 19 on the inner and outer ear plates at both ends of the first and third lifting beams 3 and 5 to prevent the slings from falling off. In this embodiment, multiple third lifting beams 5 are connected in sequence, and pins 20 are inserted into the pin holes 19 on both end ear plates 18 to ensure that the multiple third lifting beams 5 are stably connected by slings.

[0031] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A deep-water hoisting device, characterized in that, The system includes a first lifting beam, a second lifting beam, a lifting boom, and a deck. The deck has a lifting beam storage area and a sling storage area. The first and second lifting beams are connected at both ends by a first sling and a second sling, respectively. The first lifting beam is connected to the lifting boom via a third sling. The lifting boom lifts the first and second lifting beams so that the second lifting beam is placed on the hook on the deck. The first and second lifting beams are then separated. The two ends of the first lifting beam are connected to the third lifting beam via slings. The two ends of the third lifting beam are connected to the two ends of the second lifting beam via slings. The first, second, and third lifting beams are lifted simultaneously so that the third lifting beam is placed on the hook. The first and third lifting beams are then separated, resulting in multiple third lifting beams. The two ends of the multiple third lifting beams are connected sequentially by slings and placed sequentially on the hooks. The second lifting beam is connected to the object being lifted via a fourth and a fifth sling to lower the object to the seabed.

2. The deep-water hoisting device according to claim 1, characterized in that, The first and second lifting beams are provided with symmetrical inner and outer grooves on both sides of the beam body. The outer grooves at both ends of the first lifting beam and the inner grooves at both ends of the second lifting beam are connected by the first and second lifting cables, respectively.

3. The deep-water hoisting device according to claim 2, characterized in that, The inner and outer slots at both ends of the lifting beam body are composed of three identical ear plates spaced apart.

4. The deep-water hoisting device according to claim 3, characterized in that, The ear plate is provided with multiple pin holes, and the pin holes of adjacent ear plates are set in a corresponding manner. The pin passes through the pin holes of adjacent ear plates so that the first sling and the second sling are stably connected to the inner groove and the outer groove, respectively.

5. The deep-water hoisting device according to claim 1, characterized in that, The hooks are spaced on one side of the deck, with one side of the hook fixedly connected to the deck, and the side of the hook away from the deck extending out of the deck so that the second lifting beam can be placed on the hook.

6. The deep-water hoisting device according to claim 5, characterized in that, The hook has a groove on the side extending out of the deck, with the groove opening upwards so that the second lifting beam can be suspended and placed in the groove.

7. The deep-water hoisting device according to claim 6, characterized in that, The hook groove has a notch on one side, which extends toward the deck side so that the second lifting beam can be lifted toward the deck side.

8. The deep-water hoisting device according to claim 2, characterized in that, The lifting boom is rotatably mounted on the floating crane vessel. The lifting boom is equipped with hooks. The inner slots at both ends of the first lifting beam are connected to the third sling. The hooks lift the third sling, so that the first lifting beam can move between the lifting beam storage area, the sling storage area and the hook.

9. A construction method for a deep-water hoisting device, characterized in that, The main steps include: S1, the hook of the lifting boom is connected to the first lifting beam through the third sling, and the two ends of the third sling are connected to the two ends of the first lifting beam; S2, the crane boom lifts the first lifting beam, and takes the first and second slings from the deck sling storage area. The first and second slings are then connected to both ends of the first lifting beam. S3, hoist the first lifting beam and the first and second lifting cables connected at both ends together to the lifting beam storage area, and connect the ends of the first and second lifting cables away from the first lifting beam to the two ends of the second lifting beam; S4, the lifting boom lifts the first and second lifting beams, and takes the fourth and fifth lifting cables from the sling storage area and connects them to both ends of the second lifting beam; S5, the lifting boom lifts the first and second lifting beams above the object being lifted, and connects the fourth and fifth slings to the object being lifted at the ends away from the second lifting beam; S6, place the second lifting beam on the hook, and remove the first and second slings connected to both ends of the second lifting beam; S7, the lifting boom lifts the first lifting beam, the first sling and the second sling, and moves them to the sling storage area. The ends of the first sling and the second sling away from the first lifting beam are connected to the two ends of the third lifting beam. S8, the lifting boom lifts the first and third lifting beams, and takes the sixth and seventh lifting cables from the sling storage area and connects them to both ends of the third lifting beam; S9, the lifting boom lifts the first and third lifting beams, and connects the end of the sixth and seventh slings away from the third lifting beam to both ends of the second lifting beam; S10, the crane boom lifts the first and third lifting beams so that the second lifting beam is disengaged from the hook and the third lifting beam is placed on the hook to lower the load to the seabed.

10. The construction method of the deep-water hoisting device according to claim 9, characterized in that, Pins are inserted into the pin holes on the ear plates on both sides of the inner and outer slots at both ends of the first and third lifting beams to prevent the slings from falling off.

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