A method for manufacturing and installing a marine pipeline

Abstract

The application provides a ship pipeline manufacturing method and installation method. According to pipeline data of the whole ship pipeline system, each pipeline is manufactured by using a reproducer to convert into pipeline manufacturing data. When each pipeline is manufactured, the flanges are positioned and fixed, so that the flanges of the front and rear pipelines correspond to the flanges on the pipeline to be manufactured, thereby making the error smaller when the installation between each pipeline is subsequently performed, and ensuring the overall installation quality of the pipeline. In addition, the flanges are fixed first, and then the pipeline without flanges is welded, so that the position of the flanges at both ends of the pipeline is fixed and unchanged, and the position of the flanges is more accurate. At the same time, the influence caused by the bending or elbow manufacturing and splicing error between the flanges at both ends of the pipeline can be compensated and eliminated.

Description

Technical Field

[0001] This invention relates to the technical field of ship pipeline construction, and in particular to a method for manufacturing and installing ship pipelines. Background Technology

[0002] Traditional ship piping fabrication involves the design department issuing piping fabrication drawings, and the production department then receiving prefabricated or on-site calibration materials based on these drawings and a pallet list. Prefabricated pipes can be directly installed on board, while on-site calibration requires adjustments and fabrication on-site. However, both prefabricated and on-site calibration are fabricated by hand, leading to numerous errors during installation. These errors include those related to pipe fabrication, pipe support positioning, and hull deformation. This traditional piping fabrication and installation method results in significant errors, easily leading to rework and substantial waste of piping materials. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a method for manufacturing and installing ship pipelines, which solves the problem that the pipeline manufacturing and installation in the prior art has large errors, which easily leads to rework and waste of a large amount of pipeline materials.

[0004] To achieve the above and other related objectives, the present invention provides a method for manufacturing ship piping systems, including a ship piping system fabrication drawing and a reproduction machine, wherein the method for manufacturing ship piping systems includes:

[0005] The piping data in the ship piping system fabrication diagram is converted into the piping fabrication data of the reproduction machine;

[0006] Fabricate the various pipes within the ship's piping system based on the aforementioned pipe fabrication data;

[0007] The fabrication steps for each of the aforementioned pipelines include:

[0008] Based on the aforementioned pipe fabrication data, fabricate a flangeless pipe system;

[0009] The reproduction machine is adjusted according to the pipeline fabrication data, and the flanges to be welded at both ends of the flangeless pipeline are fixed on the adjusted reproduction machine.

[0010] Trim the flangeless pipeline according to the spacing between the flanges;

[0011] The flange and the trimmed flangeless pipeline are spot-welded to secure them together.

[0012] The flange and the trimmed flangeless pipeline are fully welded together to obtain each of the pipelines.

[0013] Optionally, the pipeline data includes the spacing and angle between the flanges, and the pipeline fabrication data includes the movement distance and rotation angle of each axis of the fabrication equipment of the reproduction machine.

[0014] Optionally, the steps for manufacturing the flangeless conduit include:

[0015] The pipe break points are drawn on the ship piping fabrication drawing to meet the length and angle limitations of the reproduction machine during pipe fabrication.

[0016] Based on the pipeline break points, the reproduction mechanism is used to recreate each section of the flangeless pipeline and the bend joints.

[0017] By splicing together the various pipe sections and the bend joints, the flangeless pipeline is obtained.

[0018] Optionally, after the pipeline is manufactured, it is cleaned and sealed before use.

[0019] Optionally, each of the pipelines is divided into a merging pipe and other pipelines. The merging pipe is used to connect the other pipelines to each other. The manufacturing steps of the other pipelines are the same as the manufacturing steps of each of the pipelines.

[0020] The manufacturing steps of the closure tube include:

[0021] The remaining pipelines, once fabricated, will be connected on-site at the ship.

[0022] The reproduction machine is used to perform on-site measurements to obtain the pipeline fabrication data corresponding to the closure pipe;

[0023] The merging pipe is manufactured according to the pipeline manufacturing data corresponding to the merging pipe.

[0024] The present invention also provides a method for installing marine pipelines, the method comprising:

[0025] The closure pipe is selected from the ship's piping system;

[0026] The closing pipe and the remaining pipes are made using the aforementioned reproduction mechanism;

[0027] The assembled pipe is then connected and installed with the remaining pipes.

[0028] The fabrication of the remaining pipelines and the fabrication of the merging pipe are both based on the ship pipeline fabrication method described above.

[0029] Optionally, the ship piping system includes a main pipe system and a branch pipe system, and at least one section of pipe in both the main pipe system and the branch pipe system is the closure pipe.

[0030] Optionally, the remaining pipelines are all fabricated directly inside the ship and assembled and installed on-site; or,

[0031] All other pipelines are fabricated at the ship's external site and transported to the ship's internal site for on-site assembly and installation.

[0032] Optionally, before selecting the merging pipe, the entire pipeline system is modeled, and the location of the merging pipe is selected based on the pipeline model.

[0033] The selection of the closure pipe follows the principle of not interfering with the other pipes during installation.

[0034] Optionally, the pipeline modeling step includes:

[0035] Based on the general arrangement drawing and the outfitting arrangement drawing of the compartments, model the equipment in the ship's compartments;

[0036] Piping modeling is performed by combining the modeling of the ship's cabin equipment with the fabrication drawings of the ship's piping system.

[0037] In a method for manufacturing and installing ship piping according to the present invention, the piping data of the entire ship's piping system is converted into piping manufacturing data using a reproduction machine to manufacture each pipe. During the manufacturing of each pipe, flanges are positioned and fixed to ensure that the flanges of the preceding and following pipes correspond to the flanges on the pipes to be manufactured. This minimizes errors during subsequent installation between pipes and ensures the overall quality of the piping installation. Furthermore, fixing the flanges before welding flangeless pipes ensures that the flange positions at both ends of the pipe remain fixed, resulting in more precise flange placement. Simultaneously, it can compensate for and eliminate the effects of fabrication and splicing errors of elbows or bends between the flanges at both ends of the pipe. Attached Figure Description

[0038] Figure 1 This is a flowchart illustrating the manufacturing method of various pipelines in one embodiment of the present invention.

[0039] Figure 2 This is a flowchart of a method for manufacturing a flangeless pipeline according to one embodiment of the present invention;

[0040] Figure 3 This is a flowchart of the manufacturing method of the closing tube in one embodiment of the present invention;

[0041] Figure 4 This is a flowchart of a ship pipeline installation method according to an embodiment of the present invention. Detailed Implementation

[0042] The following reference Figures 1 to 4This invention describes a method for manufacturing and installing marine piping. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0043] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] like Figure 1As shown, this embodiment of the invention provides a method for fabricating ship piping systems, including a ship piping system fabrication diagram and a reproduction machine. The ship piping system fabrication diagram includes all the piping systems of the entire ship. Alternatively, it can only include one group of piping systems. The ship piping system fabrication method includes:

[0047] Convert the piping data in the ship piping system fabrication drawing into the piping fabrication data of the reproduction machine.

[0048] The ship piping system fabrication drawing is created by establishing a piping model A based on the piping system schematic diagram, and then converting it into a model based on the piping model A and the piping system schematic diagram. The piping data from the ship piping system fabrication drawing is imported into the data generation system of the reproduction machine to establish a piping model B. The data generation system of the reproduction machine, combined with piping model B, can calculate the piping fabrication data for the reproduction machine. This piping data includes the spacing and angles between the flanges at both ends of the pipe. The piping fabrication data includes the movement distance and rotation angle of each axis of the reproduction machine's fabrication equipment, as well as basic information about the piping, such as dimensions and connection relationships.

[0049] The various pipes within the ship's piping system are fabricated based on the piping fabrication data. The fabrication steps for each pipe include:

[0050] S11, based on the pipe fabrication data, fabricate a flangeless pipe.

[0051] S12, Adjust the reproduction machine according to the pipeline fabrication data, and fix the flanges to be welded to both ends of the flangeless pipeline on the fabrication equipment of the adjusted reproduction machine.

[0052] S13, trim flangeless pipelines according to the spacing between flanges;

[0053] S14, Spot weld the flange and the trimmed flangeless pipeline to fix it;

[0054] S15 involves fully welding the flanges and the trimmed, flangeless pipes to obtain the various pipes.

[0055] When fabricating various pipelines, flangeless pipelines are fabricated first. Then, the flanges to be welded to both ends of the flangeless pipeline are fixed to the fabrication machine using locking devices. Before fixing the flanges, the positions of the axes and the turntables at both ends of the fabrication machine need to be adjusted according to the pipeline fabrication data to ensure that the flanges on the two pipelines connected to the pipeline correspond to the flanges to be welded. The flangeless pipeline is then hoisted between the two flanges, and trimmed according to the spacing between the flanges. An extra length should be left during fabrication of the flangeless pipeline to facilitate subsequent trimming. The trimmed flangeless pipeline is first tack-welded to the flanges at both ends for initial fixation. Then, according to the pipeline fabrication process requirements, the flanges and flangeless pipeline are fully welded to obtain the desired pipeline. To minimize welding shrinkage and deformation, attention must be paid to the welding current and welding sequence. Based on the piping data of the entire ship's piping system, each pipe is fabricated. During fabrication, flanges are positioned and fixed to ensure that the flanges of the preceding and following pipes correspond to the flanges on the pipes to be fabricated. This minimizes errors during subsequent installation between pipes and ensures the overall quality of the piping installation. Fixing the flanges first, and then welding flangeless pipes, guarantees that the flange positions at both ends of the pipe remain fixed, making the flange positions more precise. Simultaneously, it can compensate for and eliminate the impact of fabrication and splicing errors of elbows or bends between the flanges at both ends of the pipe.

[0056] Furthermore, such as Figure 2 As shown, the steps for making a flangeless pipe include:

[0057] S21. Mark the pipe break points on the ship piping fabrication drawing. Since the fabrication equipment of the reproduction machine has limitations on the length and angle of the pipes during fabrication, the pipe break points must be fully considered when making the ship piping fabrication drawing.

[0058] S22, combined with the pipeline break point, uses a reproduction machine to manufacture various pipe sections and bends of the flangeless pipeline.

[0059] S23. By welding and splicing the various pipe sections and bends together, a flangeless pipeline can be obtained.

[0060] Further, refer to Figure 1 Following step S15, the procedure also includes step S16, which involves cleaning the pipeline and sealing it before use. Cleaning the pipeline prevents blockages from occurring inside during installation. Sealing the pipeline before use prevents foreign objects from entering and causing it to re-block after cleaning.

[0061] In some embodiments of the present invention, the ship piping system includes a closure pipe and other pipes. The closure pipe connects the other pipes to each other. The fabrication steps for the other pipes are the same as those for the pipes in the above embodiments, i.e., the ship piping system fabrication drawing is directly converted into piping fabrication data in the reproduction machine, and the reproduction machine fabricates the piping based on the piping fabrication data. (Reference) Figure 3 The manufacturing steps for the closure tube include:

[0062] S31, Connect the remaining fabricated pipes on-site at the ship;

[0063] S32, Use a reproduction machine to perform on-site measurements to obtain the pipeline fabrication data corresponding to the closure pipe;

[0064] S33, based on the pipeline fabrication data corresponding to the closure pipe, fabricate the closure pipe.

[0065] After the remaining pipelines are connected, installation space is reserved for the closure pipe. At this point, the measurement system of the reproducing machine is used to perform on-site measurements to obtain the relevant pipeline fabrication data for the closure pipe. Then, based on this data, the closure pipe is fabricated. The steps for fabricating the closure pipe based on its fabrication data are the same as those for fabricating the remaining pipelines after obtaining their fabrication data.

[0066] This invention also provides a method for installing marine pipelines, such as... Figure 4 As shown, the methods for installing ship piping include:

[0067] S41, Select a closure pipe in the ship's piping system;

[0068] S42, using the reproduction mechanism to create the closing pipe and other pipelines;

[0069] S43, connect and install the fabricated closure pipe with the remaining pipes.

[0070] The fabrication of the remaining pipelines and the closure pipe are all based on the ship pipeline fabrication method described in the above embodiments.

[0071] When installing ship piping, the remaining pipes are fabricated and installed first, reserving installation space for the closure pipe. Then, the measurement system of the reproducing machine is used to conduct on-site measurements, obtaining the relevant piping fabrication data for the closure pipe. Based on this data, the closure pipe is fabricated. Finally, the closure pipe is spliced ​​and installed with the remaining pipes. Using the reproducing machine's measurement system to obtain the reserved fabrication data for the closure pipe on-site ensures more precise fabrication, thereby eliminating early installation errors and ensuring the overall installation quality of the piping.

[0072] Furthermore, the ship's piping system includes a main pipe system and a branch pipe system. Both the main pipe system and the branch pipe system have a section of pipe that serves as a merging pipe. When encountering a pipeline with branch pipe installations, a merging pipe section can also be pre-installed on the branch pipe, which similarly reduces installation errors. Of course, multiple merging pipe sections are also possible.

[0073] Furthermore, the remaining pipelines can be fabricated directly inside the ship and assembled on-site. Alternatively, they can be fabricated outside the ship and transported to the ship's interior for on-site assembly and installation.

[0074] Furthermore, the selection of the closure pipe follows the principle of not interfering with other pipelines during installation, thereby facilitating on-site measurement of the closure pipe manufacturing data and subsequent installation of the closure pipe.

[0075] Furthermore, to make the selection of the closure pipe more intuitive, the entire piping system is modeled before selection, and the location of the closure pipe is selected based on the piping model. The piping modeling steps include:

[0076] Based on the general arrangement drawing and the outfitting layout drawing of the cabins, model the equipment in the ship's cabins. This includes modeling manholes, stairwells, and other equipment within the cabins.

[0077] Piping modeling is performed by combining ship cabin equipment modeling and ship piping system fabrication drawings.

[0078] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method of making a marine pipe, characterized by, The method for fabricating ship piping systems includes: (This includes ship piping system fabrication drawings and a reproduction machine.) The piping data in the ship piping system fabrication drawing is converted into the piping fabrication data of the reproduction machine. The piping data includes the spacing and angle between flanges, and the piping fabrication data includes the movement distance and rotation angle of each axis of the fabrication equipment of the reproduction machine. Fabricate the various pipes within the ship's piping system based on the aforementioned pipe fabrication data; The fabrication steps for each of the aforementioned pipelines include: Based on the aforementioned pipe fabrication data, fabricate a flangeless pipe system; The reproduction machine is adjusted according to the pipeline fabrication data, and the flanges to be welded at both ends of the flangeless pipeline are fixed on the adjusted reproduction machine. Trim the flangeless pipeline according to the spacing between the flanges; The flange and the trimmed flangeless pipeline are spot-welded to secure them together. The flange and the trimmed flangeless pipeline are fully welded together to obtain each of the pipelines. After the pipeline is manufactured, it is cleaned and sealed before use. The fabrication of the flangeless piping includes: The pipe break points are drawn on the ship piping fabrication drawing to meet the length and angle limitations of the reproduction machine during pipe fabrication. Based on the pipeline break points, the reproduction mechanism is used to recreate each section of the flangeless pipeline and the bend joints. By splicing together the various pipe sections and the bend joints, the flangeless pipeline is obtained.

2. The method for manufacturing ship piping according to claim 1, characterized in that, Each of the aforementioned pipelines is divided into a connecting pipe and other pipelines. The connecting pipe is used to connect the other pipelines to each other. The manufacturing steps of the other pipelines are the same as the manufacturing steps of each of the aforementioned pipelines. The manufacturing steps of the closure tube include: The remaining pipelines, once fabricated, will be connected on-site at the ship. The reproduction machine is used to perform on-site measurements to obtain the pipeline fabrication data corresponding to the closure pipe; The merging pipe is manufactured according to the pipeline manufacturing data corresponding to the merging pipe.

3. A method for installing marine pipelines, characterized in that, The ship piping installation method includes: The closure pipe is selected from the ship's piping system; The closing pipe and the remaining pipes are made using the aforementioned reproduction mechanism; The assembled pipe is then connected and installed with the remaining pipes. The fabrication of the remaining pipelines and the fabrication of the merging pipe are both based on the ship pipeline fabrication method as described in claim 2.

4. The method for installing ship pipelines according to claim 3, characterized in that, The ship's piping system includes a main pipe system and a branch pipe system, and at least one section of pipe in both the main pipe system and the branch pipe system is the closure pipe.

5. The method for installing ship pipelines according to claim 4, characterized in that, The remaining pipelines are all fabricated directly inside the ship and assembled on-site; or, All other pipelines are fabricated at the ship's external site and transported to the ship's internal site for on-site assembly and installation.

6. The method for installing ship pipelines according to claim 4, characterized in that, Before selecting the closure pipe, the entire pipeline system is modeled, and the location of the closure pipe is selected based on the pipeline model. The selection of the closure pipe follows the principle of not interfering with the other pipes during installation.

7. The method for installing ship pipelines according to claim 6, characterized in that, The steps for pipeline modeling include: Based on the general arrangement drawing and the outfitting arrangement drawing of the compartments, model the equipment in the ship's compartments; Piping modeling is performed by combining the modeling of the ship's cabin equipment with the fabrication drawings of the ship's piping system.

Images