A method for dividing and constructing a machinery room section of a container ship

Abstract

The application discloses a kind of container ship engine room segmentation division and construction method, specifically comprising the following steps: step 1, between inner bottom plate and upper platform is divided into engine room;Step 2, construct rib and longitudinal, rib is perpendicular to deck and ship longitudinal arrangement;Longitudinal is set along ship longitudinal;Step 3, in the outside of rib and longitudinal, in turn install outer plate reinforcing rib, scattered paste outer plate, patch and bulk piece, install deck, patch and bulk piece below longitudinal;By reasonable segmentation board frame division, curved surface outer plate and component form curved surface three-dimensional small piece, reduce high-altitude operation, reduce the erection of scaffold.The vertical weld and overhead weld that originally need to carry out high-altitude welding become plane welding weld, improve welding efficiency, reduce welding operation amount, shorten the period of segmentation construction.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, specifically to a method for dividing and constructing the engine room section of a container ship. Background Technology

[0002] In shipbuilding, the rationality of the hull structure directly affects the ship's strength, stability, manufacturability, and service performance. Traditional ship structural designs often suffer from uneven strength distribution, inefficient material utilization, and high assembly difficulty in component layout, impacting the ship's overall performance and manufacturing efficiency.

[0003] The cabin has a large linearity and a high segment height, making construction difficult. Conventional construction methods use the deck as the base, then install ribs, and finally attach outer plates in a piecemeal manner. This method involves a large amount of high-altitude welding work, a long construction period, and poor construction safety. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a method for dividing and constructing the engine room of a container ship.

[0005] The technical solution of this invention to solve the above problems is: a method for dividing and constructing the engine room section of a container ship, specifically including the following steps: Step 1: Divide the area between the inner floor and the upper platform into the engine room; Step 2: Construct the ribs and longitudinal girder. The ribs are perpendicular to the deck and arranged longitudinally along the ship. The longitudinal girder is set along the longitudinal direction of the ship. Step 3: Install outer plate reinforcing ribs, loose outer plates, patch plates, and loose components sequentially on the outside of the ribs and longitudinal girder. Install decks, patch plates, and loose components below the longitudinal girder. The deck serves as the basic load-bearing surface of the ship and is laid along the length of the ship to provide installation foundation support for other components. The outer plate reinforcing ribs are distributed in the outer plate area to strengthen the ship's outer plate. Loose outer plates cover the outside of the ship. Patch plates are used to repair and strengthen local structures of the ship. Loose components are flexibly arranged and assembled according to the functional requirements of the ship.

[0006] Furthermore, step 2 specifically includes: The ribs of the cabin are divided into four parts: rib I, rib II, rib III, and rib IV. The ribs I, rib II, rib III, and rib IV are welded to the outer plate using fillet welds.

[0007] Furthermore, the rib plate is a curved frame, and its fabrication specifically includes the following steps: Step 201: Pre-fabricate the curved surfaces of ribs I, II, III, and IV according to their designed curvature to provide a support surface for the curved outer plate, preventing deformation due to its own weight or external forces during processing. Precise dimensional control of the jig ensures the forming accuracy of the curved outer plate, meeting the docking requirements for subsequent assembly. After welding, considering the steel plate processing accuracy and welding shrinkage, the fully welded curved outer plate is treated as a whole and subjected to secondary scribing. Step 202: Based on the secondary scribing results of the curved outer plate, install the upper ribs and longitudinal girder to form a curved three-dimensional sheet, and the corresponding welding changes from high-altitude welding to fillet welds.

[0008] Furthermore, the installation method for the ribs and longitudinal girder in step 202 is as follows: First, install the longitudinal girder, use measuring instruments to accurately position it, adjust the levelness and straightness, and fix it with embedded parts or anchor bolts to serve as the load-bearing structure of the frame foundation. Hoist ribs III and IV to align them with the inner bottom plate. Use temporary supports for positioning and initially fix them with welding or bolts. Take real-time measurements during the process to ensure surface compatibility. Install rib plate I and rib plate II, and accurately position them using a lifting device. Adjust their angle and spacing with rib plate III and rib plate IV, and temporarily fix them using tooling fixtures. Weld or fasten the connection parts of each component, prioritizing the completion of the main load-bearing welds, and then handle the auxiliary connections. Control the welding parameters during welding to avoid deformation, and tighten bolt connections to the specified torque.

[0009] The present invention has the following beneficial effects: This invention provides a method for segmenting and constructing the engine room of a container ship. Through rational segmentation using plate frames, curved outer plates and components are combined into small, curved three-dimensional pieces, reducing high-altitude work and scaffolding erection. Vertical and overhead welds that previously required high-altitude welding are transformed into planar welds, improving welding efficiency, reducing welding workload, and shortening the segment construction cycle. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 Exploded view of the assembly of the ribs and longitudinal girder; Figure 3 This is a structural diagram showing the assembled ribs and longitudinal girder; In the diagram: 1-rib plate, 2-longitudinal girder, 3-deck, 4-outer plate stiffener, 5-loose outer plate, 6-patch plate and loose components; 101-Rib plate I, 102-Rib plate II, 103-Rib plate III, 104-Rib plate IV. Detailed Implementation

[0011] 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 will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0012] As shown in the figure, a method for dividing and constructing the engine room of a container ship includes the following steps: Step 1: Divide the area between the inner floor and the upper platform into the engine room; Step 2: Construct the ribs and longitudinal girder. The ribs are arranged perpendicular to the deck and the longitudinal direction of the ship, which enhances the ship's lateral strength and resistance to deformation. Together with the deck, longitudinal girder and other components, they form a stable lateral force-bearing system. The longitudinal girder is set along the longitudinal direction of the ship. Together with the ribs and deck, it strengthens the longitudinal strength of the ship, transmits longitudinal loads, and improves the stability of the overall ship structure.

[0013] The ribs of the cabin are divided into four parts, namely rib I, rib II, rib III, and rib IV. The welding of rib I, rib II, rib III, and rib IV to the outer plate adopts flat fillet welds to avoid vertical and overhead welding of the ribs to the curved outer plate. The rib plate is a curved surface frame, and its preparation includes the following steps: Step 201: Pre-fabricate the curved surfaces of ribs I, II, III, and IV according to their designed curvature to provide a support surface for the curved outer plate, preventing deformation due to its own weight or external forces during processing. Precise dimensional control of the jig ensures the forming accuracy of the curved outer plate, meeting the docking requirements for subsequent assembly. After welding, considering the steel plate processing accuracy and welding shrinkage, the fully welded curved outer plate is treated as a whole and subjected to secondary scribing. Step 202: Based on the secondary scribing results of the curved outer plate, install the upper ribs and longitudinal girder to form a curved three-dimensional sheet, and the corresponding welding changes from high-altitude welding to fillet welds. First, install the longitudinal girder, use measuring instruments to accurately position it, adjust the levelness and straightness, and fix it with embedded parts or anchor bolts to serve as the load-bearing structure of the frame foundation. Hoist ribs III and IV to align them with the inner bottom plate. Use temporary supports for positioning and initially fix them with welding or bolts. Take real-time measurements during the process to ensure surface compatibility. Install ribs I and II, precisely positioning them using lifting equipment. Adjust their angle and spacing with ribs III and IV, and temporarily fix them using tooling fixtures. Weld or tighten the connecting parts of each component, prioritizing the completion of the main load-bearing welds before handling auxiliary connections. Control welding parameters during welding to avoid deformation, and tighten bolt connections to the specified torque.

[0014] Step 3: Install the outer plate reinforcing ribs, loose outer plates, patch plates, and loose components sequentially on the outside of the ribs and longitudinal girder. Install the deck, patch plates, and loose components below the longitudinal girder. The deck, as the basic load-bearing surface of the ship, is laid along the length of the ship, providing a foundation support for the installation of other components. Its structural dimensions and strength are adapted to the overall load-bearing requirements of the ship. The outer plate reinforcing ribs are distributed in the outer plate area to strengthen the ship's outer plate, resisting water pressure, wave impact, etc., during the ship's navigation, and preventing deformation of the outer plate. Loose outer plates cover the outside of the ship. Through a reasonable loose plate layout, they are adapted to the ship's lines and work with the outer plate reinforcing ribs and ribs to ensure the sealing and structural strength of the outer plate. Patch plates are used to repair and strengthen local structures of the ship. Loose components are flexibly arranged and assembled according to the ship's functional requirements, such as equipment installation and pipeline connections, to improve the ship's functionality.

[0015] Deck, ribs, and longitudinal girder constitute the basic load-bearing structure of the ship's main frame, with longitudinal and transverse mutual support and constraint. Outer plate stiffeners and loose outer plates serve as the ship's "shell" protection and reinforcement structure, attached to the main frame, enhancing the ship's outer plate's resistance to damage. Patch plates and loose components are used for local structural reinforcement and functional supplementation, adapting to the main frame and outer plate structure. All components work together to achieve the optimal balance of ship structure in terms of strength, stability, and functionality, meeting the ship's navigation, operation, and other needs.

[0016] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for dividing and constructing the engine room section of a container ship, characterized in that: Specifically, the following steps are included: Step 1: Divide the area between the inner floor and the upper platform into the engine room; Step 2: Construct the ribs and longitudinal girder. The ribs are perpendicular to the deck and arranged longitudinally along the ship. The longitudinal girder is set along the longitudinal direction of the ship. Step 3: Install the outer plate stiffeners, loose outer plates, patch plates and loose components in sequence on the outside of the ribs and longitudinal girder. Install the deck, patch plates and loose components below the longitudinal girder. The deck serves as the basic load-bearing surface of the ship and is laid along the length of the ship to provide the installation foundation support for other components. Outer plate reinforcing ribs are distributed in the outer plate area to strengthen the ship's outer plate; loose outer plates cover the outside of the ship; patch plates are used to repair and strengthen local structures of the ship; loose components are flexibly arranged and assembled according to the functional requirements of the ship.

2. The method for dividing and constructing the engine room of a container ship as described in claim 1, characterized in that: Step 2 specifically includes: The ribs of the cabin are divided into four parts: rib I, rib II, rib III, and rib IV. The ribs I, rib II, rib III, and rib IV are welded to the outer plate using fillet welds.

3. The method for dividing and constructing the engine room section of a container ship as described in claim 2, characterized in that: The rib plate is a curved surface frame, and its preparation specifically includes the following steps: Step 201: Pre-fabricate the curved surfaces of ribs I, II, III, and IV according to their designed curvature to provide a support surface for the curved outer plate, preventing deformation due to its own weight or external forces during processing. Precise dimensional control of the jig ensures the forming accuracy of the curved outer plate, meeting the docking requirements for subsequent assembly. After welding, considering the steel plate processing accuracy and welding shrinkage, the fully welded curved outer plate is treated as a whole and subjected to secondary scribing. Step 202: Based on the secondary scribing results of the curved outer plate, install the upper ribs and longitudinal girder to form a curved three-dimensional sheet, and the corresponding welding changes from high-altitude welding to fillet welds.

4. The method for dividing and constructing the engine room section of a container ship as described in claim 1, characterized in that: The installation method for the ribs and longitudinal girder in step 202 is as follows: First, install the longitudinal girder, use measuring instruments to accurately position it, adjust the levelness and straightness, and fix it with embedded parts or anchor bolts to serve as the load-bearing structure of the frame foundation. Hoist ribs III and IV to align them with the inner bottom plate. Use temporary supports for positioning and initial fixation with welding or bolts. Take real-time measurements during the process to ensure surface compatibility. Install rib plate I and rib plate II, and accurately position them using a lifting device. Adjust their angle and spacing with rib plate III and rib plate IV, and temporarily fix them using tooling fixtures. Weld or fasten the connection parts of each component, prioritizing the completion of the main load-bearing welds, and then handle the auxiliary connections. Control the welding parameters during welding to avoid deformation, and tighten bolt connections to the specified torque.

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