A marine multi-core tube installation process

Abstract

This invention discloses a marine multi-core tube installation process, comprising the following steps: installation preparation, installation location confirmation and bracket installation, roller fixture positioning, multi-core tube laying, tube bundle arrangement, tube bundle fixing, pre-connection, nitrogen purging cleaning, and reconnection. This invention first confirms the installation location and installs the bracket, then fixes the roller fixture, followed by laying the multi-core tube, arranging and fixing the tube bundle, then pre-connection and nitrogen purging cleaning, and finally connecting the multi-core tube to the corresponding valve and control box to complete the installation. Compared with traditional methods, this method is simpler, clearer, and easier to operate, enabling quick and accurate installation of multi-core tubes, effectively protecting them from damage during installation, improving construction efficiency, and can be applied to all shipbuilding and marine engineering projects. It has broad application prospects and is worthy of promotion.

Description

Technical Field

[0001] This invention relates to the field of marine piping technology, and in particular to a marine multi-core pipe installation process. Background Technology

[0002] Ships are vehicles that can navigate or anchor in waterways for transportation or operations. They have different technical performance, equipment, and structural forms according to different usage requirements. In the construction of products in the fields of ships and offshore platforms, remote-controlled butterfly valves are widely used in the compartment piping valves. The control of remote-controlled butterfly valves is achieved by valve remote control systems. In valve remote control systems, multi-core tubes are usually used to transmit hydraulic media to realize the remote opening and closing of butterfly valves in each compartment by the valve control unit. Multi-core tubes are usually in the form of one tube with two cores or one tube with multiple cores. Each core is connected to a butterfly valve to realize its opening and closing control. Multi-core tubes are delivered in the form of roller winding. A whole roll of multi-core tubes is a whole multi-core tube. Before laying, it is necessary to cut them according to the actual required length.

[0003] During the installation of multi-core pipes, roller brackets are required for auxiliary installation. Multi-core pipes penetrate many construction areas, typically including work compartments, pipe tunnels, ballast water tanks, etc. During construction, they need to be dragged by external force to be laid in place. Moreover, the leakage prevention requirements for multi-core pipes are extremely high. Typically, the entire pipe from the hydraulic control unit to the hydraulic butterfly valve drive mechanism must be a complete, jointless pipe without any splices. However, most existing multi-core pipe installation methods are complex and difficult to operate, and the multi-core pipes are easily damaged during installation, resulting in low installation efficiency and making them unworthy of widespread application. Therefore, this invention proposes a marine multi-core pipe installation process to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to propose a marine multi-core tube installation process. This process is specifically designed for the installation of multi-core tubes in remote control systems for butterfly valves on ships and offshore platforms. It develops a multi-core tube installation process that enables rapid and accurate installation of multi-core tubes, effectively protects them from damage during installation, and improves construction efficiency.

[0005] To achieve the objectives of this invention, the invention is implemented through the following technical solution: a marine multi-core tube installation process, comprising the following steps:

[0006] Step 1: Installation Preparation

[0007] First, obtain the design drawings based on the ship's structure and actual installation needs, and then calculate the length data of the multi-core tubes required for each path in the valve remote control system;

[0008] Step 2: Confirming the installation location and installing the bracket

[0009] First, determine if there are any other outfitting components that have not been installed on the multi-core tube installation path. If there is any interference, avoid the uninstalled outfitting components. Then, mark the lines and make holes on the installation path according to the requirements of the design drawings, and install the through-cabin components. Next, pull the line to install the tube support.

[0010] Step 3: Positioning the roller fixture

[0011] First, check the condition of the roller fixture containing multi-core tubing. Once it is confirmed to be in good condition, place the roller fixture in the designated position. Then, fix the bottom of the roller fixture by welding or binding.

[0012] Step 4: Multi-core tube installation

[0013] First, pull the multi-core tube out of the reel fixture. Then, cut the pulled-out multi-core tube according to the calculated length data of the multi-core tube required for each path in the valve remote control system. Mark the tube number and the connecting valve number on both ends of each multi-core tube. At the same time, seal the ends of the multi-core tube with electrical tape. Then, lay the multi-core tube according to the installation path.

[0014] Step 5: Tube Arrangement

[0015] The laid cables should be tidied up and temporarily fixed with temporary cable ties, while leaving gaps between adjacent multi-core pipes passing through the hatch.

[0016] Step Six: Fixing the Tube Bundle

[0017] Stainless steel plastic-coated cable ties are used to secure the arranged multi-core tubes, ensuring that the tightening ends of the cable ties are in the same direction and on a straight line.

[0018] Step 7: Pre-connection

[0019] First, connect the multi-core tube to the corresponding valve and control box interface according to the pre-marked tube number and valve number. Then, cut off the excess length at the interface. Next, cut the multi-core tube end with a pipe cutter and remove the burrs with a file. Then, apply sealant to both ends of the multi-core tube to seal it and put on a matching shrink finger sleeve. Then, fix it to the tube body by baking. After that, put the matching clip and sleeve on each multi-core tube. After all the remote control valve heads are connected, connect the remote control valve control unit.

[0020] Step 8: Nitrogen cleaning

[0021] First, use a nitrogen cylinder to clean each multi-core tube by blowing nitrogen. After cleaning, wrap the tube opening with a white cloth and tie it securely before cleaning the next multi-core tube.

[0022] Step Nine: Reinstall the connecting pipe

[0023] First, confirm that the clamps and sleeves of each multi-core pipe interface are intact. After confirming that they are intact, connect the multi-core pipe to the corresponding valve and control box according to the pipe number and valve number to complete the installation. After the installation is completed, conduct a system performance test to check the installation tightness.

[0024] Further improvements are made in the following steps: In step two, the pipe supports are determined according to the installation height required by the design drawings, the excess allowance of the hanging feet is cut off, and continuous fillet welding is performed around the structure. The pipe supports are arranged in a straight and neat manner, and skew is prohibited. After the installation of the pipe supports and the through-cabin parts is completed and confirmed, the path area is painted until it meets the standards for finished paint.

[0025] Further improvements are made in the following steps: In step four, when cutting the multi-core tube, the multi-core tube with the longer layout length is cut first, and then the multi-core tube with the shorter layout length is cut. When laying the multi-core tube, the order of inside to outside, top to bottom, and middle to side is followed, and crossing, mixing, twisting and detours are prohibited. The number of multi-core tubes stacked does not exceed three layers, and the number of tubes laid in each layer is the same or decreases from bottom to top.

[0026] A further improvement is made in step four, where the bending radius of the multi-core tube is greater than or equal to four times the cross-sectional diameter of the multi-core tube, and a professional tube bender is used for bending, prohibiting the use of heat for bending.

[0027] Further improvements are made in step five, where the multi-core tubes laid in straight paths ensure that each tube, each layer, and each group of tubes is straight and neat, and the multi-core tubes laid in curved paths ensure that the corner angles of each tube, each layer, and each group of tubes are consistent, smooth, and neat.

[0028] A further improvement is made in step five, where if an MCT module is used for sealing, the gap should be reserved according to the specifications of the MCT module; if grouting is used for sealing, a gap of 10-15mm should be reserved.

[0029] A further improvement is made in step six, where the tubes are manually shaken during the process to ensure that the cable ties are tightened to be flush with the surface of the multi-core tube and that there is no slippage between the layers.

[0030] A further improvement is made in step eight, during cleaning, intermittently opening the main valve of the nitrogen cylinder for 10-15 seconds, blowing air into each of the multi-core tubes, and tapping the tube bundle with a wooden hammer. One end of the air outlet is checked with a white cloth until the gas rushes out onto the white cloth. The white cloth is then checked to ensure it is clean, with no debris or dirt on it.

[0031] The beneficial effects of this invention are as follows: First, the installation location is confirmed and the bracket is installed. Then, the roller fixture is fixed. Next, the multi-core tube is laid, and the tube bundle is arranged and fixed. Then, the pre-connected tube is installed and cleaned with nitrogen. Finally, the multi-core tube is connected to the corresponding valve and control box to complete the installation. Compared with the traditional method, this invention is simple and clear, easy to operate, and can quickly and accurately install the multi-core tube. It effectively protects the multi-core tube from damage during the installation process, improves construction efficiency, and can be applied to all shipbuilding and marine engineering projects of the company. It has broad application prospects and is worth promoting. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a process flow diagram of the present invention;

[0034] Figure 2 This is a schematic diagram of the multi-core tube layout of the present invention;

[0035] Figure 3 This is a schematic diagram of the multi-core tube stacking of the present invention. Detailed Implementation

[0036] 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, and 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.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Example 1

[0040] See Figure 1 , 2 3. This embodiment provides a marine multi-core tube installation process, including the following steps:

[0041] Step 1: Installation Preparation

[0042] First, obtain the design drawings based on the ship's structure and actual installation needs, and then calculate the length data of the multi-core tubes required for each path in the valve remote control system;

[0043] Step 2: Confirming the installation location and installing the bracket

[0044] First, determine if there are any other outfitting components that have not been installed on the multi-core tube installation path. If there is any interference, avoid the uninstalled outfitting components. Then, mark the lines and make holes on the installation path according to the requirements of the design drawings, and install the through-cabin components. Next, install the tube supports by pulling the line. The installation height of the tube supports is determined according to the requirements of the design drawings. Cut off the excess of the hanging feet and make continuous fillet welds to the perimeter of the structure. The tube supports should be arranged in a straight and neat manner, and skew is prohibited. After the installation of the tube supports and through-cabin components is completed and confirmed, paint the path area until it meets the standards for finished paint.

[0045] Step 3: Positioning the roller fixture

[0046] First, check the condition of the roller fixture containing the multi-core tube. After confirming that it is in good condition, place the roller fixture in the designated position. Then, fix the bottom of the roller fixture by binding. By fixing the roller fixture, the multi-core tube will be laid more stably.

[0047] Step 4: Multi-core tube installation

[0048] Before laying the multi-core conduit, confirm the quantity and model of the conduit. If correct, use it for subsequent installation; otherwise, return it to the warehouse. First, pull the multi-core conduit out of the reel fixture. Then, cut the pulled-out multi-core conduit according to the calculated length data of the multi-core conduit required for each path in the valve remote control system. Mark the pipe number and connecting valve number on both ends of each multi-core conduit. At the same time, seal the ends of the multi-core conduit with electrical tape. Then, lay the multi-core conduit according to the installation path. When cutting the multi-core conduit, cut the longer section first, then cut the section with the longer section. When laying multi-core pipes with short lengths, follow the order of inside to outside, top to bottom, and middle to side, and prohibit crossing, mixing, twisting, and detours. The number of multi-core pipes stacked should not exceed three layers, and the number of pipes in each layer should be the same or decrease from bottom to top. The bending radius of the multi-core pipe should be greater than or equal to four times the cross-sectional diameter of the multi-core pipe, and a professional pipe bender should be used for bending. It is forbidden to bend by heating with fire. By marking the pipe number and connecting valve number at both ends of the multi-core pipe, the problem of incorrect connection during installation can be avoided, thus ensuring the accuracy of multi-core pipe installation.

[0049] Step 5: Tube Arrangement

[0050] The laid cables are tidied up and temporarily fixed with temporary cable ties. At the same time, gaps are reserved between adjacent multi-core pipes passing through the through-hole components. For multi-core pipes laid in straight paths, each pipe, each layer, and each group of pipes must be straight and neat. For multi-core pipes laid in curved paths, each pipe, each layer, and each group of pipes must have consistent corner angles, be smooth, and be neat. When reserving gaps, if MCT modules are used for sealing, gaps must be reserved according to the specifications of the MCT modules. If grouting is used for sealing, a 10mm gap is reserved. By reserving gaps, it is easier to place the through-hole components, thus bringing convenience to subsequent installation.

[0051] Step Six: Fixing the Tube Bundle

[0052] Stainless steel plastic-coated cable ties are used to secure the arranged multi-core tubes, ensuring that the tightening ends of the cable ties are in the same direction and in a straight line. While stacking the tubes, the ties are manually shaken to check that they are tightened to be flush with the surface of the multi-core tubes and that there is no slippage between layers. By securing the arranged multi-core tubes with stainless steel plastic-coated cable ties and checking them, the installation stability of the multi-core tubes is guaranteed.

[0053] Step 7: Pre-connection

[0054] First, connect the multi-core tube to the corresponding valve and control box interface according to the pre-marked pipe number and valve number. Then, cut off the excess length at the interface. Next, cut the multi-core tube end with a pipe cutter and remove the burrs with a file. Then, apply sealant to both ends of the multi-core tube for sealing and put on a matching shrink finger sleeve. Then, fix it to the tube body by heating. After that, put the matching clip and sleeve on each multi-core tube. After all the remote control valve heads are connected, connect the remote control valve control unit. By cutting and removing burrs from the multi-core tube interface and applying sealant to both ends of the multi-core tube for sealing, the sealing at the interface is guaranteed.

[0055] Step 8: Nitrogen cleaning

[0056] First, use a nitrogen cylinder to clean each multi-core tube by blowing nitrogen. After cleaning, wrap the tube opening with a white cloth and tie it securely before cleaning the next multi-core tube. During cleaning, open the main valve of the nitrogen cylinder intermittently for 10 seconds to blow air into each multi-core tube and tap the tube bundle with a wooden hammer. Check the outlet end with a white cloth until the gas rushes out onto the white cloth. Check that there are no debris or dirt on the white cloth to ensure that it is clean. This ensures the cleanliness of the multi-core tube after installation and avoids the multi-core tube from being affected by foreign objects inside.

[0057] Step Nine: Reinstall the connecting pipe

[0058] First, confirm that the clamps and sleeves of each multi-core tube interface are intact. After confirming that they are intact, connect the multi-core tube to the corresponding valve and control box according to the tube number and connecting valve number to complete the installation. After the installation is completed, conduct a system performance test to check the installation tightness, thereby ensuring the sealing performance of the multi-core tube after installation.

[0059] Example 2

[0060] See Figure 1 , 2 3. This embodiment provides a marine multi-core tube installation process, including the following steps:

[0061] Step 1: Installation Preparation

[0062] First, obtain the design drawings based on the ship's structure and actual installation needs, and then calculate the length data of the multi-core tubes required for each path in the valve remote control system;

[0063] Step 2: Confirming the installation location and installing the bracket

[0064] First, determine if there are any other outfitting components that have not been installed on the multi-core tube installation path. If there is any interference, avoid the uninstalled outfitting components. Then, mark the lines and make holes on the installation path according to the requirements of the design drawings, and install the through-cabin components. Next, install the tube supports by pulling the line. The installation height of the tube supports is determined according to the requirements of the design drawings. Cut off the excess of the hanging feet and make continuous fillet welds to the perimeter of the structure. The tube supports should be arranged in a straight and neat manner, and skew is prohibited. After the installation of the tube supports and through-cabin components is completed and confirmed, paint the path area until it meets the standards for finished paint.

[0065] Step 3: Positioning the roller fixture

[0066] First, check the condition of the roller fixture containing the multi-core tube. After confirming that it is in good condition, place the roller fixture in the designated position. Then, fix the bottom of the roller fixture by binding. By fixing the roller fixture, the multi-core tube will be laid more stably.

[0067] Step 4: Multi-core tube installation

[0068] Before laying the multi-core conduit, confirm the quantity and model of the conduit. If correct, use it for subsequent installation; otherwise, return it to the warehouse. First, pull the multi-core conduit out of the reel fixture. Then, cut the pulled-out multi-core conduit according to the calculated length data of the multi-core conduit required for each path in the valve remote control system. Mark the pipe number and connecting valve number on both ends of each multi-core conduit. At the same time, seal the ends of the multi-core conduit with electrical tape. Then, lay the multi-core conduit according to the installation path. When cutting the multi-core conduit, cut the longer section first, then cut the section with the longer section. When laying multi-core pipes with short lengths, follow the order of inside to outside, top to bottom, and middle to side, and prohibit crossing, mixing, twisting, and detours. The number of multi-core pipes stacked should not exceed three layers, and the number of pipes in each layer should be the same or decrease from bottom to top. The bending radius of the multi-core pipe should be greater than or equal to four times the cross-sectional diameter of the multi-core pipe, and a professional pipe bender should be used for bending. It is forbidden to bend by heating with fire. By marking the pipe number and connecting valve number at both ends of the multi-core pipe, the problem of incorrect connection during installation can be avoided, thus ensuring the accuracy of multi-core pipe installation.

[0069] Step 5: Tube Arrangement

[0070] The laid cables are tidied up and temporarily fixed with temporary cable ties. At the same time, gaps are reserved between adjacent multi-core pipes passing through the through-hole components. For multi-core pipes laid in straight paths, each pipe, each layer, and each group of pipes must be straight and neat. For multi-core pipes laid in curved paths, each pipe, each layer, and each group of pipes must have consistent corner angles, be smooth, and be neat. When reserving gaps, if MCT modules are used for sealing, gaps must be reserved according to the specifications of the MCT modules. If grouting is used for sealing, a 15mm gap is reserved. By reserving gaps, it is easier to place the through-hole components, thus bringing convenience to subsequent installation.

[0071] Step Six: Fixing the Tube Bundle

[0072] Stainless steel plastic-coated cable ties are used to secure the arranged multi-core tubes, ensuring that the tightening ends of the cable ties are in the same direction and in a straight line. While stacking the tubes, the ties are manually shaken to check that they are tightened to be flush with the surface of the multi-core tubes and that there is no slippage between layers. By securing the arranged multi-core tubes with stainless steel plastic-coated cable ties and checking them, the installation stability of the multi-core tubes is guaranteed.

[0073] Step 7: Pre-connection

[0074] First, connect the multi-core tube to the corresponding valve and control box interface according to the pre-marked pipe number and valve number. Then, cut off the excess length at the interface. Next, cut the multi-core tube end with a pipe cutter and remove the burrs with a file. Then, apply sealant to both ends of the multi-core tube for sealing and put on a matching shrink finger sleeve. Then, fix it to the tube body by heating. After that, put the matching clip and sleeve on each multi-core tube. After all the remote control valve heads are connected, connect the remote control valve control unit. By cutting and removing burrs from the multi-core tube interface and applying sealant to both ends of the multi-core tube for sealing, the sealing at the interface is guaranteed.

[0075] Step 8: Nitrogen cleaning

[0076] First, use a nitrogen cylinder to clean each multi-core tube by blowing nitrogen. After cleaning, wrap the tube opening with a white cloth and tie it securely before cleaning the next multi-core tube. During cleaning, open the main valve of the nitrogen cylinder intermittently for 15 seconds to blow air into each multi-core tube and tap the tube bundle with a wooden hammer. Check the outlet end with a white cloth until the gas rushes out onto the white cloth. Check that there are no debris or dirt on the white cloth to ensure that it is clean. This ensures the cleanliness of the multi-core tube after installation and avoids the multi-core tube from being affected by foreign objects inside.

[0077] Step Nine: Reinstall the connecting pipe

[0078] First, confirm that the clamps and sleeves of each multi-core tube interface are intact. After confirming that they are intact, connect the multi-core tube to the corresponding valve and control box according to the tube number and connecting valve number to complete the installation. After the installation is completed, conduct a system performance test to check the installation tightness, thereby ensuring the sealing performance of the multi-core tube after installation.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process for installing marine multi-core tubes, characterized in that: Includes the following steps: Step 1: Installation Preparation First, obtain the design drawings based on the ship's structure and actual installation needs, and then calculate the length data of the multi-core tubes required for each path in the valve remote control system; Step 2: Confirming the installation location and installing the bracket First, determine if there are any other outfitting components that have not been installed on the multi-core tube installation path. If there is any interference, avoid the uninstalled outfitting components. Then, mark the lines and make holes on the installation path according to the requirements of the design drawings, and install the through-cabin components. Next, pull the line to install the tube support. Step 3: Positioning the roller fixture First, check the condition of the roller fixture containing multi-core tubing. Once it is confirmed to be in good condition, place the roller fixture in the designated position. Then, fix the bottom of the roller fixture by welding or binding. Step 4: Multi-core tube installation First, pull the multi-core tube out of the reel fixture. Then, cut the pulled-out multi-core tube according to the calculated length data of the multi-core tube required for each path in the valve remote control system. Mark the tube number and the connecting valve number on both ends of each multi-core tube. At the same time, seal the ends of the multi-core tube with electrical tape. Then, lay the multi-core tube according to the installation path. Step 5: Tube Arrangement The laid cables should be tidied up and temporarily fixed with temporary cable ties, while leaving gaps between adjacent multi-core pipes passing through the hatch. Step Six: Fixing the Tube Bundle Stainless steel plastic-coated cable ties are used to secure the arranged multi-core tubes, ensuring that the tightening ends of the cable ties are in the same direction and on a straight line. Step 7: Pre-connection First, connect the multi-core tube to the corresponding valve and control box interface according to the pre-marked tube number and valve number. Then, cut off the excess length at the interface. Next, cut the multi-core tube end with a pipe cutter and remove the burrs with a file. Then, apply sealant to both ends of the multi-core tube to seal it, and put on a matching shrink finger sleeve. Then, fix it to the tube body by baking. After that, put the matching clip and sleeve on each multi-core tube. After all the remote control valve heads are connected, connect the remote control valve control unit. Step 8: Nitrogen cleaning First, use a nitrogen cylinder to clean each multi-core tube by blowing nitrogen. After cleaning, wrap the tube opening with white cotton cloth and tie it securely before cleaning the next multi-core tube. Step Nine: Reinstall the connecting pipe First, confirm that the clamps and sleeves of each multi-core pipe interface are intact. After confirming that they are intact, connect the multi-core pipe to the corresponding valve and control box according to the pipe number and valve number to complete the installation. After the installation is completed, conduct a system performance test to check the installation tightness.

2. The marine multi-core tube installation process according to claim 1, characterized in that: In step two, the pipe supports are determined according to the installation height required by the design drawings. Excess allowances of the hanging feet are cut off, and continuous fillet welds are made to the perimeter of the structure. The pipe supports are arranged in a straight and neat manner, and skew is prohibited. After the installation of the pipe supports and the through-cabin parts is completed and confirmed, the path area is painted until it meets the standards for finished paint.

3. The marine multi-core tube installation process according to claim 1, characterized in that: In step four, when cutting the multi-core tube, first cut the multi-core tube with the longer layout length, and then cut the multi-core tube with the shorter layout length. When laying the multi-core tube, follow the order of inside to outside, top to bottom, and middle to side. Crossing, mixing, twisting and detours are prohibited. The number of multi-core tubes stacked should not exceed three layers, and the number of tubes laid in each layer should be the same or decrease from bottom to top.

4. The marine multi-core tube installation process according to claim 1, characterized in that: In step four, the bending radius of the multi-core tube is greater than or equal to four times the cross-sectional diameter of the multi-core tube, and a professional tube bender is used for bending; heat bending is prohibited.

5. The marine multi-core tube installation process according to claim 1, characterized in that: In step five, the multi-core tubes laid along straight paths ensure that each tube, each layer, and each group of tubes is straight and neat, while the multi-core tubes laid along curved paths ensure that the corner angles of each tube, each layer, and each group of tubes are consistent, smooth, and neat.

6. The marine multi-core tube installation process according to claim 1, characterized in that: In step five, if an MCT module is used for sealing, the gap should be reserved according to the specifications of the MCT module. If grouting is used for sealing, a gap of 10-15mm should be reserved.

7. The marine multi-core tube installation process according to claim 1, characterized in that: In step six, while the tubes are being crimped, they are manually shaken to check and ensure that the cable ties are tightened to be flush with the surface of the multi-core tube and that there is no slippage between the layers.

8. The marine multi-core tube installation process according to claim 1, characterized in that: In step eight, during cleaning, the main valve of the nitrogen cylinder is opened intermittently for 10-15 seconds to blow air into each of the multi-core tubes, and the tube bundle is tapped with a wooden hammer. One end of the air outlet is checked with a white cloth until the gas rushes out onto the white cloth. The white cloth is then checked to ensure that there are no impurities or dirt on it, indicating that it is clean.

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