Method for quickly installing marine berthing piece

Abstract

The invention discloses a method for quickly installing a marine berthing piece. The method comprises the following steps that the berthing piece is lowered to the position of a reverse bottom layer of a platform; a lock of the single-beam crane is connected with the berthing piece; the platform crane and the single-beam crane are used for transferring the weight of the berthing piece; the single-beam traveling crane moves the berthing piece in place to be aligned with the welding part for welding; and the tool is withdrawn and recycled for subsequent repeated use. According to the method, the berthing piece is installed at the welding part by means of the single-beam crane tool, a multi-directional scaffold does not need to be erected, the platform crane and the single-beam crane have the self-hoisting capacity, manual hoisting through a guide chain is not needed, manpower is saved, the berthing piece is rapidly in place under the cooperation of the platform crane and the slide way beam, the project construction cost is greatly reduced, and the construction efficiency is improved. And the tool can be recycled and reused, the competitiveness of a building site is improved, the actual construction period of the method is two days, the high-altitude operation time of offshore workers is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore berthing member installation, and particularly relates to a method for quickly installing an offshore berthing member. Background Technique

[0002] At present, when a ten-thousand-ton offshore oil production platform is in place with a jacket at sea, the floating towing method is commonly used. The tugboat advances from the middle of the jacket. When the upper limit plate on the tugboat contacts the upper limit plate on the jacket (where the berthing member will be installed subsequently), and then the platform reaches the designated position. The tugboat is ballasted, and the spud at the bottom of the platform falls into the jacket to complete the floating tow.

[0003] In the above method, the upper limit plate on the jacket needs to be cut off subsequently and a new berthing member needs to be installed. Usually, the berthing member is fixed to the anti-bottom layer of the platform before going to sea. In this way, a large amount of scaffolding and welding lugs need to be erected during installation, and welding lugs need to be welded. Multiple chain hoists (hand-pulled hoists) are used for manual lifting. The manpower, material resources and financial resources invested will be relatively large. In terms of personnel safety, the risk is also high during the long construction period. Through the above method, the construction period for installing the berthing member is more than four days, consuming a large amount of manpower, material resources and time. Moreover, there are a large number of offshore high-altitude operations during this construction period for personnel, and there is a relatively high risk in terms of safety. For this reason, we propose a method for quickly installing an offshore berthing member. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for quickly installing an offshore berthing member, which solves the problems of long construction period, high cost and high danger in the current situation.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A method for quickly installing an offshore berthing member, including the following steps:

[0006] Step 1: Lower the berthing member to the position of the anti-bottom layer of the platform;

[0007] Step 2: Connect the lock of the single-girder overhead crane to the berthing member;

[0008] Step 3: Transfer the weight of the berthing member by the platform crane and the single-girder overhead crane;

[0009] Step 4: The single-girder overhead crane moves the berthing member into place and aligns it with the welding part for welding;

[0010] Step 5: Withdraw and recycle the tooling for subsequent reuse.

[0011] Preferably, in the above Step 1, the berthing member is prepared to the position of the top layer of the platform before going to sea. Before installing the berthing member, the platform crane is used to lift the berthing member to the position of the anti-bottom layer of the platform, and a floating rope is arranged on the berthing member.

[0012] Preferably, when installing the ship fender in the first step, a scaffolding is erected in advance beside the position of the slideway beam to the outer layer of the anti-bottom layer of the platform, for the staff to hook the single-girder crane and the ship fender, and a scaffolding is erected around the welding part for the staff to carry out welding work.

[0013] Preferably, in the second step, before the slideway beam tooling goes to sea, it is assembled in sections on the profiled steel of the anti-bottom layer of the platform using clamping bolts.

[0014] Preferably, in the second step, measure the point where the single-girder crane moves and positions on the slideway beam, and weld a stop limit plate at this point. After the jacket on the offshore platform is in place, remove the original platform positioning block to obtain the welding part.

[0015] Preferably, in the second step, the staff stands on the scaffolding of the anti-bottom layer of the platform and connects the sling of the single-girder crane and the lifting lug of the ship fender.

[0016] Preferably, in the third step, the slings of the platform crane and the single-girder crane continue to be lowered. After reaching the appropriate position, the single-girder crane starts to pull upwards. At this time, the force on the platform crane is transferred to the single-girder crane, and the platform crane is not stressed and only responsible for controlling the direction.

[0017] Preferably, in the fourth step, after the single-girder crane is fully stressed, it then moves towards the installation position of the ship fender until it reaches the stop limit plate and can be in place. The staff on the bottom layer platform of the jacket takes out the floating rope to control the direction of the ship fender so that the socket is inserted into the welding part position to complete the installation.

[0018] Preferably, in the fourth step, the construction workers stand on the scaffolding and first use a marlinespike to preliminarily position the ship fender, and then weld the fixed ship fender.

[0019] Preferably, in the fifth step, after the ship fender is spot-welded, the sling can be removed. The construction workers disassemble the slideway beam in sections and then use the platform crane to lift it to the platform deck for cage recycling.

[0020] The present invention discloses a method for quickly installing an offshore ship fender, and its beneficial effects are as follows:

[0021] (1) The method for quickly installing the offshore ship fender uses a single-girder crane tooling to complete the installation of the ship fender at the welding part, without erecting multi-directional scaffolding. Both the platform crane and the single-girder crane have their own lifting capabilities, and there is no need for manual hoisting with a chain block, saving manpower. With the cooperation of the platform crane and the slideway beam, the ship fender is quickly positioned, greatly reducing the project construction cost, minimizing the personnel safety risk, and the tooling can be recycled and reused, improving the competitiveness of the construction site. The actual construction period using this method is two days, reducing the high-altitude operation time of offshore workers and accelerating the construction efficiency.

[0022] (2) In the method for rapid installation of the marine ship docking component, before the slideway beam tooling goes to sea, it is assembled in segments on the steel profiles of the platform's anti-bottom layer through clamping and bolts, which has multiple advantages. First of all, the segmented assembly method reduces the difficulty of offshore operations, shortens the on-site assembly time, and improves the overall construction efficiency. Secondly, the flexible connection using clamping and bolts not only ensures the stable combination of the slideway, the slideway beam tooling and the platform steel profiles, but also facilitates subsequent adjustment or disassembly, enhancing adaptability. In addition, prefabricating in a standardized manner on land can reduce the dependence on large equipment for offshore construction, reduce the risk of high-altitude operations, and avoid installation errors caused by fluctuations in the offshore environment, ensuring structural accuracy and safety. This step provides a reliable foundation support for subsequent operations and optimizes resource utilization.

[0023] (3) In the method for rapid installation of the marine ship docking component, by measuring and calculating the moving and positioning position of the single-girder crane on the slideway beam and welding the stop and limit plate, it has significant advantages. First of all, accurate measurement and calculation and welding of the stop and limit plate can ensure that the moving position of the single-girder crane on the slideway beam is accurate and error-free, avoiding installation errors caused by deviation or sliding, and improving the docking accuracy of the ship docking component. Secondly, the setting of the stop and limit plate enhances the stability and safety of the slideway beam, preventing the single-girder crane from exceeding the predetermined range during the moving process and reducing the operation risk. In addition, after the jacket is in place on the offshore platform, the original platform positioning block is removed, providing a clear working space for the welding part, facilitating the smooth progress of subsequent welding work, and reducing the interference to the original structure, ensuring the high efficiency and structural integrity of the overall installation. This step lays a solid foundation for the accurate installation and welding of the ship docking component, optimizes the construction process and improves safety.

[0024] (4) In the method for rapid installation of the marine ship docking component, the construction workers stand on the scaffolding and first use the horse brand to preliminarily position the ship docking component, and then weld the fixed ship docking component. First of all, the setting of the scaffolding provides a safe and stable working platform for the construction workers, reduces the risk of high-altitude operations, and is convenient for close-range operation to ensure the accuracy of the preliminary positioning. Secondly, using the horse brand for preliminary positioning can quickly adjust the position and angle of the ship docking component, reduce the adjustment time during subsequent welding, and improve the construction efficiency. In addition, the process of positioning first and then welding ensures the close fit between the ship docking component and the welding part, improves the welding quality and structural strength, and avoids potential safety hazards caused by misalignment or loosening. This step not only optimizes the installation process, but also guarantees the construction accuracy and safety, providing reliable support for the high-quality completion of the overall project. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a front structural schematic diagram of the offshore platform of the present invention.

[0027] Figure 2 It is a front structural schematic diagram of the slideway beam of the present invention.

[0028] Figure 3 It is a side structural schematic diagram of the slideway beam of the present invention.

[0029] In the figure: 101, platform anti-bottom layer; 102, platform crane; 201, slideway beam; 202, single-girder overhead crane; 203, stop limit plate; 301, ship fender; 302, welding part; 401, clamp; 402, bolt. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] The embodiment of the present application provides a method for quickly installing a ship fender on the sea, which solves the problems of long construction period, high cost and high danger in the current situation. With the help of the single-girder overhead crane 202 tooling, the ship fender 301 is installed at the welding part 302, without setting up multi-directional scaffolding. Moreover, both the platform crane 102 and the single-girder overhead crane 202 have their own lifting capabilities, without manual hoisting using a chain block, saving manpower. With the cooperation of the platform crane 102 and the slideway beam 201, the ship fender 301 is quickly positioned, greatly reducing the project construction cost, minimizing the safety risk to personnel, and the tooling can be recycled and reused, improving the competitiveness of the construction site. Actually, the construction period of using this method is two days, reducing the high-altitude operation time of offshore workers and accelerating the construction efficiency.

[0032] To better understand the above technical solutions, the following will detail the above technical solutions in combination with the specification drawings and specific embodiments.

[0033] According to the appendix Figure 1 - Figure 3As shown in the figure, an embodiment of the present invention discloses a method for quickly installing a ship fender, which includes the following steps:

[0034] Step 1: Lower the ship fender 301 to the position of the platform anti-bottom layer 101;

[0035] Step 2: Connect the locking device of the single-girder overhead crane 202 to the ship fender 301;

[0036] Step 3: The platform crane 102 and the single-girder overhead crane 202 transfer the weight of the ship fender 301;

[0037] Step 4: The single-girder overhead crane 202 moves the ship fender 301 into position and aligns it with the welding part 302 and performs welding;

[0038] Step 5: Withdraw and recycle the tooling for subsequent reuse.

[0039] First, the ship fender 301 is accurately lowered to the position of the platform anti-bottom layer 101 to ensure accurate initial positioning. Then, the locking device of the single-girder overhead crane 202 is connected to the ship fender 301 to ensure stability during the hoisting process. Subsequently, the platform crane 102 and the single-girder overhead crane 202 cooperate to transfer the weight, disperse the load, and reduce the single-point pressure. The single-girder overhead crane 202 moves the ship fender 301 to the welding part 302 and performs welding to ensure a firm connection. Finally, the tooling is withdrawn and recycled for subsequent reuse, saving resources. This series of actions not only improves the installation accuracy but also reduces the operation risk, realizing the efficient and safe installation of the ship fender 301.

[0040] With the help of the single-girder overhead crane 202 tooling, the ship fender 301 is installed at the welding part 302 without setting up multi-directional scaffolding. Moreover, both the platform crane 102 and the single-girder overhead crane 202 have their own lifting capacities, eliminating the need for manual hoisting with a chain hoist, saving manpower. With the cooperation of the platform crane 102 and the slideway beam 201, the ship fender 301 is quickly positioned, greatly reducing the project construction cost, minimizing the personnel safety risk, and the tooling can be recycled and reused, improving the competitiveness of the construction site. The actual construction period using this method is two days, reducing the high-altitude operation time of offshore workers and accelerating the construction efficiency.

[0041] Among them, in Step 1, the ship fender 301 is prepared and transported to the top layer of the platform before going to sea. Before installing the ship fender 301, the platform crane 102 is used to lift the ship fender 301 to the position of the bottom layer 101 of the platform, and floating ropes are arranged on the ship fender 301. First of all, preparing materials in advance and arranging floating ropes can improve the installation efficiency and reduce the time of offshore operations. Secondly, using the platform crane 102 for the following operations ensures the stability and safety of the ship fender 301 during the transfer process, reducing the risk of accidents. Finally, the arrangement of floating ropes facilitates subsequent precise positioning and installation, enhancing the flexibility and controllability of the operation. This step lays a monitoring foundation for subsequent installations, improving the overall safety and efficiency of the operation.

[0042] Among them, when installing the ship fender 301 in Step 1, a scaffolding is erected beside the position of the slideway beam 201 to the outer layer of the bottom layer 101 of the platform before going to sea, for the staff to hook the single-girder crane 202 and the ship fender 301, and a scaffolding is erected around the welding part 302 for the staff to carry out welding work. First of all, the scaffolding provides a safe and stable high-altitude working platform for the staff, effectively reducing the risk of falling from a height during hooking and welding. Secondly, the layout close to the slideway beam 201 and the welding part 302 enables the workers to accurately operate the hook of the single-girder crane 202, ensuring the quick docking of the ship fender 301 and the slideway beam 201, and at the same time facilitating real-time adjustment of the welding position, improving the welding quality and efficiency. In addition, planning the scaffolding layout in advance can reduce the time of temporary erection during offshore operations, further optimizing the installation process and ensuring the safety and construction progress of the overall project.

[0043] Among them, in Step 2, before the slideway beam 201 tooling goes to sea, it is segmented and assembled on the section steel of the bottom layer 101 of the platform using the clamp 401 and the bolt 402. The slideway beam 201 tooling is segmented and assembled on the section steel of the bottom layer 101 of the platform using the clamp 401 and the bolt 402 before going to sea, which has multiple advantages. First of all, the segmented assembly method reduces the difficulty of offshore operations, shortens the on-site assembly time, and improves the overall construction efficiency. Secondly, the flexible connection using the clamp 401 and the bolt 402 not only ensures the firm combination of the slideway beam 201 tooling and the platform section steel, but also facilitates subsequent adjustment or disassembly, enhancing adaptability. In addition, pre-standardized assembly on land can reduce the dependence on large equipment during offshore construction, reduce the risk of high-altitude operations, and at the same time avoid installation errors caused by fluctuations in the offshore environment, ensuring the structural accuracy and safety. This step provides a reliable basic support for subsequent operations and optimizes resource utilization.

[0044] Among them, in step two, measure the point where the single-girder overhead crane 202 moves and positions on the slide beam 201, and weld the upper stop limit plate 203 at this point. After the offshore platform is in place on the jacket, remove the original platform positioning block to obtain the welding part 302. By measuring the moving and positioning position of the single-girder overhead crane 202 on the slide beam 201 and welding the stop limit plate 203, there are significant advantages. First of all, accurately measuring and welding the stop limit plate 203 can ensure that the moving position of the single-girder overhead crane 202 on the slide beam 201 is accurate and error-free, avoiding installation errors caused by deviation or sliding, and improving the docking accuracy of the fender 301. Secondly, the setting of the stop limit plate 203 enhances the stability and safety of the slide beam 201, preventing the single-girder overhead crane 202 from exceeding the predetermined range during the moving process and reducing the operation risk. In addition, after the offshore platform is in place on the jacket, removing the original platform positioning block provides a clear working space for the welding part 302, facilitating the smooth progress of the subsequent welding work, while reducing the interference to the original structure and ensuring the high efficiency and structural integrity of the overall installation. This step lays a solid foundation for the accurate installation and welding of the fender 301, optimizes the construction process and improves safety.

[0045] Among them, in step two, the staff stand on the scaffold of the platform anti-bottom layer 101 to connect the lock of the single-girder overhead crane 202 and the lifting lug of the fender 301. First of all, the scaffold provides a safe and stable high-altitude working platform for the staff, significantly reducing the falling risk during the connection operation and ensuring personnel safety. Secondly, the close-range operation enables the staff to more accurately dock the lock with the lifting lug, ensuring the firmness and reliability of the connection and avoiding installation hidden dangers caused by misalignment or loosening. In addition, the setting of the scaffold reduces the dependence on large lifting equipment in offshore operations, simplifies the operation process, improves work efficiency, and provides convenient conditions for subsequent weight transfer and installation of the fender 301. This step not only improves the installation accuracy and safety, but also optimizes the overall construction process and lays a solid foundation for subsequent work.

[0046] Among them, in Step 3, the slings of the platform crane 102 and the single-girder overhead crane 202 continue to lower. After reaching the appropriate position, the single-girder overhead crane 202 starts to pull upward. At this time, the force on the platform crane 102 is transferred to the single-girder overhead crane 202, and the platform crane 102 is not stressed and only responsible for controlling the direction. First of all, this force transfer mechanism ensures the stability and safety of the fender 301 during the weight transfer process, avoiding the risk of shaking or loss of control caused by sudden force changes. Secondly, the platform crane 102 focuses on direction control and can adjust the position of the fender 301 more precisely to ensure its accurate docking with the slide beam 201, improving the installation accuracy. In addition, the single-girder overhead crane 202 bears the main force, giving full play to its structural advantages, reducing the load on the platform crane 102, extending the service life of the equipment, optimizing resource allocation at the same time, and improving the overall construction efficiency. This step provides a stable and reliable foundation for subsequent installations, reducing operation risks and improving the operation quality.

[0047] Among them, in Step 4, after the single-girder overhead crane 202 is fully stressed, it then moves towards the installation position of the fender 301 until it reaches the stop limit plate 203 and can be in place. The staff on the bottom layer platform of the jacket take out the floating rope to control the direction of the fender 301 so that the socket is inserted into the welding part 302 to complete the installation. First of all, the setting of the stop limit plate 203 ensures the accuracy and controllability of the movement of the single-girder overhead crane 202, avoiding installation errors caused by over-limit movement and improving the accuracy of the fender 301 in place. Secondly, the use of the floating rope provides the staff with a flexible means of direction control, enabling real-time adjustment of the position and angle of the fender 301 to ensure the perfect docking of the socket and the welding part 302, reducing rework and adjustment time. In addition, this step gives full play to the advantages of human-machine cooperation, ensuring the stability of the operation and improving the installation efficiency, laying a solid foundation for subsequent welding work, and reducing the risks and complexities of offshore operations at the same time.

[0048] Among them, in Step 4, the construction workers stand on the scaffolding and first use the marlinespike to make a preliminary positioning of the fender 301, and then weld the fixed fender 301. First of all, the setting of the scaffolding provides a safe and stable working platform for the construction workers, reducing the risk of high-altitude operations and facilitating close-range operations to ensure the accuracy of the preliminary positioning. Secondly, using the marlinespike for preliminary positioning can quickly adjust the position and angle of the fender 301, reducing the adjustment time during subsequent welding and improving the construction efficiency. In addition, the process of positioning first and then welding ensures the close fit of the fender 301 and the welding part 302, improving the welding quality and structural strength, and avoiding potential safety hazards caused by misalignment or loosening. This step not only optimizes the installation process but also guarantees the accuracy and safety of the construction, providing reliable support for the high-quality completion of the overall project.

[0049] Among them, in step five, after spot welding the ship fender 301, the locking device can be removed. The construction workers remove the slideway beam 201 in sections and then use the platform crane 102 to lift it onto the platform deck for cage loading and recycling. First of all, removing the locking device in time after spot welding can release equipment resources, facilitate the efficient progress of subsequent operations, reduce the equipment occupation time, and improve resource utilization rate. Secondly, removing the slideway beam 201 in sections reduces the removal difficulty and risk, and facilitates the operators to complete the disassembly work safely and quickly. In addition, using the platform crane 102 to load the removed slideway beam 201 into the cage for recycling not only reduces the waste of offshore operations, but also realizes the reuse of tooling, reduces the construction cost, and meets the requirements of environmental protection and economic benefits. This step optimizes the recycling process of tooling equipment, thereby improving the overall construction efficiency, while taking into account safety and sustainability.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A method for rapid installation of ship-mounted parts at sea, characterized in that: The following steps are involved: Step 1: The berthing member (301) is lowered to the position of the platform anti-bottom layer (101); Step 2: Connect the lock of the single-beam crane (202) to the docking member (301); Step 3: The platform crane (102) and the single-beam crane (202) transfer the weight of the berthing member (301); Step 4: The single-beam crane (202) moves the berthing part (301) to a position aligned with the welding part (302) and performs welding; Step 5: Remove and recycle the tooling for subsequent reuse.

2. A method for rapid installation of offshore berthing parts according to claim 1, characterized in that: In the step 1, the mooring member (301) is prepared to the top layer of the platform before going out to sea, and before installing the mooring member (301), the mooring member (301) is lifted to the anti-bottom layer (101) of the platform with the help of the platform crane (102), and the drift rope is arranged on the mooring member (301).

3. A method for rapid installation of offshore berthing parts according to claim 2, characterized in that: When installing the mooring member (301) in step 1, a scaffold is set up in advance beside the slideway beam (201) to the outer layer of the platform anti-bottom layer (101) for workers to hook the single-beam crane (202) with the mooring member (301), and a scaffold is set up around the welding part (302) for workers to perform welding work.

4. A method for rapid installation of offshore berthing parts according to claim 3, characterized in that: In the step 2, the slideway beam (201) is assembled in sections onto the steel sections of the platform counter bottom layer (101) using clamps (401) and bolts (402) before the tooling is put out to sea.

5. A method for rapid installation of offshore berthing parts according to claim 4, characterized in that: In the step 2, the point where the single-beam crane (202) moves into position on the slideway beam (201) is measured, and a stop plate (203) is welded on this point. After the offshore platform is positioned on the conductor frame, the original platform positioning block is cut off to obtain the welding part (302).

6. A method for rapid installation of offshore berthing parts according to claim 5, characterized in that: In the second step, the lock of the single-beam crane (202) and the lifting lug of the berthing member (301) are connected on the scaffolding of the platform anti-bottom layer (101).

7. A method for rapid installation of offshore berthing parts according to claim 6, characterized in that: In step three, the locks of the platform crane (102) and the single-beam traveling crane (202) continue to be lowered. When they reach a suitable position, the single-beam traveling crane (202) starts to pull upward. At this time, the force on the platform crane (102) is transferred to the single-beam traveling crane (202). The platform crane (102) is not subjected to force and is only responsible for controlling the direction.

8. A method for rapid installation of offshore berthing parts according to claim 7, characterized in that: In the step 4, after the single-beam crane (202) is fully stressed, it is moved toward the position of the berthing part (301) to the stop limit plate (203) and is in place. The staff of the bottom platform of the jacket takes out the flow rope to control the direction of the berthing part (301) so that the socket is inserted into the welding part (302) to complete the position.

9. A method for rapid installation of offshore berthing parts according to claim 8, characterized in that: In the step 4, the anchoring member (301) is initially positioned on the scaffold using a horse brand, and then the fixed anchoring member (301) is welded.

10. A method for rapid installation of offshore berthing parts according to claim 9, characterized in that: In the step 5, after the docking parts (301) are spot welded, the locks can be removed, the slideway beam (201) can be dismantled in sections, and then dropped onto the platform deck with the help of the platform crane (102) for cage recovery.

Images