A horizontal limiting device for a ship independent cabin

Abstract

The present application relates to a kind of horizontal limiting device of ship independent cabin, independent cabin is separately arranged in corresponding cargo cabin place, and there is gap between the periphery cargo cabin place bulkhead respectively, is divided into front and rear gap and left and right gap;Horizontal limiting component is arranged in at least one of the front and rear gap and left and right gap, and the horizontal limiting component includes: the support fixedly arranged on at least one of independent cabin side wall and cargo cabin place bulkhead, and the support is fixedly connected with the other one of independent cabin side wall and cargo cabin place bulkhead or another support by intermediate chock.The present application has the advantages of convenient construction, stable stress, simple structure, low cost and the like.

Description

Technical Field

[0001] This invention relates to a horizontal limiting device for independent cabins on ships, belonging to the field of marine technology. Background Technology

[0002] In gas carriers with independent compartments, the longitudinal loads under longitudinal acceleration and collision conditions are borne by longitudinal supports. These supports are typically located in the middle of the bottom of the independent compartment and consist of independent supports distributed on both sides of the hull and the independent compartment, combined with a central contact pad. To withstand the enormous loads during a ship collision, the structure of these longitudinal supports needs to be strengthened and enlarged, forcing them to be coupled with connected vertical supports. This coupled structure further increases the stress and structural complexity. Furthermore, the support is located between the independent compartment and the bottom of the hull, resulting in limited construction space. To meet construction requirements, additional handholes or process holes need to be drilled in the longitudinal support. All of these factors contribute to the high design and structural costs and significant construction difficulties of these longitudinal supports, making them a major challenge in the design and manufacture of independent compartment supports. Summary of the Invention

[0003] The technical problem this invention aims to solve is that the independent compartments (used for gas storage) of gas transport ships are fixed inside the hull by distributed, independent supports (restricting devices), which can be divided into longitudinal supports, transverse supports, and vertical supports according to different load directions. Currently, longitudinal supports are mainly arranged in the middle of the independent compartment and are mostly coupled with vertical supports, resulting in complex structures and stress patterns, as well as limited construction space. This invention proposes a horizontal limiting device installed on both sides of the independent compartment, which has significant advantages such as convenient construction, stable stress, simple structure, and low cost.

[0004] The present invention adopts the following technical solution: A horizontal limiting device for an independent cabin on a ship, wherein the independent cabin is separately set in a corresponding cargo hold space and has gaps between itself and the surrounding cargo hold space bulkheads, namely, aft and lateral gaps; a horizontal limiting component is provided in at least one of the aft and lateral gaps, the horizontal limiting component comprising: a support fixedly installed on at least one of the independent cabin side wall and the cargo hold space bulkhead, the support being fixedly connected to the other of the independent cabin side wall and the cargo hold space bulkhead, or the other support, via a central wooden block 3; the horizontal limiting component is located adjacent to the planar portion at the low corner of the independent cabin.

[0005] Preferably, the cargo hold space bulkhead is a transverse bulkhead 5 of the hull, and the horizontal limiting component is a longitudinal limiting component.

[0006] Preferably, the cargo hold bulkhead is a longitudinal bulkhead of the hull, and the horizontal limiting component is a lateral limiting component.

[0007] Preferably, the support includes an independent cabin support 1 and a hull side support 2, which are fixedly connected by the intermediate wooden block 3.

[0008] Preferably, the support includes an independent compartment support 1, which is directly fixedly connected to the bulkhead of the cargo hold space via an intermediate pad 3.

[0009] Preferably, the support includes a hull-side support 2, which is directly and fixedly connected to the bulkhead of the cargo hold via an intermediate wooden block 3.

[0010] Furthermore, the longitudinal limiting components on both sides of the transverse bulkhead 5 of the hull are located in corresponding longitudinal positions.

[0011] Preferably, the horizontal limiting component has an upper and lower pair, respectively located near the top and bottom of the independent cabin.

[0012] Preferably, the horizontal limiting components are provided on the front and rear sides of a single independent cabin, and / or on the left and right sides simultaneously.

[0013] A horizontal limiting device for an independent cabin on a ship, wherein the independent cabin is separately set in a corresponding cargo hold space and has gaps between itself and the surrounding cargo hold space bulkheads, namely, aft and lateral gaps; a horizontal limiting component is provided in at least one of the aft and lateral gaps, the horizontal limiting component comprising: supports fixedly installed on the side wall of the independent cabin and the cargo hold space bulkhead facing the ground, and two supports being fixedly connected by a hydraulic rod or a spring 6.

[0014] The beneficial effects of this invention are as follows: 1) Achieve complete decoupling between horizontal limit and bottom vertical support, abandon the traditional bottom coupling support structure, and completely solve the pain points of narrow construction space, need to open process hand holes, complex stress and easy to generate additional torque of the original support, thus greatly reducing design and construction costs.

[0015] 2) The horizontal limiting components are arranged between the independent compartment sidewall and the hull bulkhead, and are preferably located at the low corner thick wall plane. The hull corner itself has sufficient rigidity, so there is no need for additional thickening and reinforcement structure. The load transmission path is straight and the force is stable and uniform.

[0016] 3) The buffer and limiting structure adopts supports and intermediate wooden blocks. The wooden blocks are adapted to the deformation difference between the hull and the independent compartment. The horizontal load is transferred through the bearing form, avoiding the risk of weld shear failure. It can be adapted to the transverse bulkhead of the hull for longitudinal limiting and the longitudinal bulkhead for lateral limiting. One structural concept can simultaneously constrain the displacement in both the length and width of the ship, making it more versatile.

[0017] 4) The sidewall arrangement provides ample space for construction and maintenance operations, reduces the alignment accuracy requirements during independent hoisting, and is not affected by the bilge air chamber or suction trap structure, allowing for greater freedom in choosing the arrangement location.

[0018] 5) In one embodiment, three simplified support configurations are provided (double-sided support, cabin-side support only, and hull-side support only), which can be flexibly selected according to cabin space and load size, reducing the amount of steel plate welding and adapting to the lightweight design requirements of small and medium-sized independent cabins.

[0019] 6) In one embodiment, the limiting components on both sides of the transverse bulkhead are symmetrically arranged, and the longitudinal loads of the front and rear of the bulkhead are canceled in both directions, avoiding the off-center load caused by unilateral limiting and improving the structural fatigue performance under navigation conditions.

[0020] 7) In one embodiment, the impact forces at different heights are dispersed near the top and bottom of the cabin, respectively, to suppress cabin deflection and torsional displacement, and to adapt to high-load conditions of large-size independent cabins.

[0021] 8) In one embodiment, limit groups are arranged synchronously in front of, behind, left and right of the cabin. The bidirectional constraint cancels the reciprocating horizontal inertial force, and the reliability of the limit is significantly improved when the ship accelerates, decelerates and collides.

[0022] 9) As another independent solution (hydraulic rod / spring limit), it abandons the wooden pad structure, has elastic buffering capability, can adapt to small deformations, and is suitable for special independent cabin scenarios with large temperature difference deformation and low impact load, thus expanding the application range of the device. Attached Figure Description

[0023] Figure 1 This is a plan view of the support arrangement at the bottom of the existing independent cabin in the comparative embodiment.

[0024] Figure 2 This is a side view of the existing independent cabin in the comparative embodiment, showing the arrangement of the longitudinal supports.

[0025] Figure 3 yes Figure 2 Enlarged view of the longitudinal support section at the bottom center.

[0026] Figure 4 yes Figure 3 A further enlarged view of the relevant area.

[0027] Figure 5 This is a layout diagram of the ship's independent cabin horizontal limiting device in the first embodiment of the present invention.

[0028] Figure 6 This is a layout diagram of the ship's independent cabin horizontal limiting device in the second embodiment of the present invention.

[0029] Figure 7This is a layout diagram of the ship's independent cabin horizontal limiting device in the third embodiment of the present invention.

[0030] Figure 8 This is a layout diagram of the ship's independent cabin horizontal limiting device in the fourth embodiment of the present invention.

[0031] Figure 9 This is a layout diagram of the horizontal limiting device for an independent cabin on a ship according to the fifth embodiment of the present invention.

[0032] In the diagram, 1. Side support of independent compartment, 2. Side support of hull, 3. Intermediate support, 4. Aft bulkhead of independent compartment, 5. Transverse bulkhead of hull, 6. Forehead bulkhead of independent compartment. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Comparative Example: See Figure 1 and Figure 2 , Figure 1 The support arrangement at the bottom of the independent compartment is shown, including vertical supports (bearing gravity), longitudinal supports (bearing forces along the length of the ship), and transverse supports (bearing forces along the width of the ship).

[0035] Among them, the longitudinal support and the transverse support are collectively referred to as the horizontal limiting device. This embodiment will be described using the longitudinal support as an example.

[0036] Figure 2-4 The arrangement of the longitudinal supports is shown, from Figure 3 As can be seen, the longitudinal supports are coupled with the transverse and vertical supports, resulting in structural complexity and stress distribution, which poses challenges to ship load design. Furthermore, in this comparative embodiment, both the longitudinal and transverse supports are located between the double bottom of the hull and the independent compartment, making construction, inspection, and maintenance inconvenient. Simultaneously, when the longitudinal supports bear load, the height difference between the center of force and the bottom surface of the independent compartment introduces additional moments. Located simultaneously in the middle of the hull and within the independent compartment, the stiffness is relatively weak, requiring extensive structural reinforcement and calculations to meet strength requirements, resulting in a large structural weight and high cost.

[0037] Meanwhile, the longitudinal supports are located in the space between the independent compartment and the bottom of the hull, where the construction space is narrow. In order to meet the construction requirements, additional hand holes or process holes need to be opened on the longitudinal supports, which makes the process complicated. Example

[0038] See Figure 5 Independent compartments are tanks used to store gaseous or liquid gases. They are located within cargo hold spaces and are spaced apart from the surrounding cargo hold spaces. Figure 5 Only the gap located at one of the transverse bulkheads 5 of the hull is shown.

[0039] See Figure 5 , Figure 5 The diagram shows a partial structure of the corner of a transverse bulkhead 5 of the hull, and an independent compartment located on each side of the transverse bulkhead 5 in the longitudinal direction, as well as the gaps between them.

[0040] As shown in the figure, a horizontal limiting component is installed in the gap. The horizontal limiting component is adjacent to the plane part of the low corner of the independent compartment. Specifically, it includes: an independent compartment side support 1 fixedly installed on the independent compartment, a corresponding hull side support 2 fixedly installed on the transverse bulkhead 5 of the hull, and an intermediate wooden block 3 fixedly installed between the two. Unlike the vertical support, the wooden block 3 of the longitudinal support is not always under pressure. Therefore, the horizontal limiting component needs to be arranged on both the front and rear sides of the independent compartment to achieve force balance.

[0041] It should be noted that there is an advantage to setting the flat part at the low corner of the independent cabin. First, it is stable under stress. Second, the wall thickness of the corner of the independent cabin is very thick, and the design rigidity and strength are very high, so no additional reinforcement design is required.

[0042] Figure 5 It can be seen that the height of the horizontal limiting component is not within the space between the independent compartment and the bottom of the hull, so the construction space is relatively spacious and there is no need to open additional hand holes or process holes on the longitudinal support. Example

[0043] See Figure 6 Similarly, this embodiment also uses the longitudinal limiting component as an example for explanation, but the actual lateral limiting component is exactly the same in principle.

[0044] The difference between this embodiment and embodiment one is that: in this embodiment, the hull side support 2 is not provided (e.g., Figure 5 Instead, the intermediate wooden block 3 is directly connected to the transverse bulkhead 5 of the hull.

[0045] The rest is the same as in Example 1. Example

[0046] See Figure 7 The difference between this embodiment and Embodiment 1 is that this embodiment does not include independent cabin-side supports (such as...). Figure 5 Instead, the intermediate support 3 is directly connected to the independent cabin.

[0047] The rest is the same as in Example 1. Example

[0048] See Figure 8The difference between this embodiment and Embodiment 1 is that this embodiment not only sets up a horizontal limiting assembly at the low position of the independent cabin, but also at the high position of the independent cabin. The horizontal limiting assembly has an upper and lower pair, respectively close to the top and bottom of the independent cabin.

[0049] The rest is the same as in Example 1. Example

[0050] See Figure 9 The difference between this embodiment and Embodiment 1 is: The horizontal limiting components have different structures. The horizontal limiting components include: supports fixedly installed on the side wall of the independent compartment and the cargo hold space bulkhead, facing the ground. The two supports are fixedly connected by a hydraulic rod or spring 6.

[0051] In this embodiment, the horizontal limiting components do not necessarily have to be installed on both the front and rear sides of the independent cabin; they can be installed simultaneously on both sides or only on one side.

[0052] In summary, this application decouples the longitudinal and vertical supports of the independent compartment and arranges them between the forward and aft rear bulkheads of the independent compartment and the transverse bulkheads of the hull. This new arrangement, combined with the inherent structural rigidity, results in cost reduction and ease of construction and maintenance. Furthermore: The longitudinal supports are arranged between the fore and aft bulkheads of the independent compartments and the transverse bulkheads of the hull, which facilitates construction and maintenance.

[0053] The arrangement of longitudinal and vertical supports is completely decoupled, preventing them from affecting each other. This simplifies the structural form and stress analysis.

[0054] The new type of support has high structural rigidity for the hull and independent compartments, and the center of force can be easily adjusted to be flush with the outer plate of the independent compartment, resulting in more reasonable structural stress, less additional reinforcement, and lower design and construction costs.

[0055] The above are preferred embodiments of the present invention. Those skilled in the art can make various modifications or improvements based on these embodiments. Without departing from the overall concept of the present invention, such modifications or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A horizontal limiting device for an independent cabin on a ship, characterized in that: Independent compartments are set up separately in their corresponding cargo hold spaces, and there are gaps between them and the bulkheads of the surrounding cargo hold spaces, which are divided into front and rear gaps and left and right gaps. A horizontal limiting component is provided within at least one of the front-to-back gap and the left-to-right gap, the horizontal limiting component comprising: A support is fixedly provided on at least one of the independent compartment sidewall and the cargo hold space bulkhead, the support being fixedly connected to the other of the independent compartment sidewall and the cargo hold space bulkhead, or the other support, via an intermediate pad (3); The horizontal limiting component is located on the plane adjacent to the low corner of the independent cabin.

2. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The cargo hold space bulkhead is a transverse bulkhead of the hull (5), and the horizontal limiting component is a longitudinal limiting component.

3. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The cargo hold bulkhead is a longitudinal bulkhead of the hull, and the horizontal limiting component is a lateral limiting component.

4. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The supports include independent cabin supports (1) and hull side supports (2), which are fixedly connected by the intermediate pad (3).

5. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The support includes an independent compartment support (1), which is directly fixed to the cargo hold bulkhead via an intermediate pad (3).

6. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The support includes a hull side support (2), which is directly fixed to the bulkhead of the cargo hold via a central wooden block (3).

7. The ship independent cabin horizontal limiting device as described in claim 2, characterized in that: The longitudinal limiting components on both sides of the transverse bulkhead (5) of the hull are located in corresponding longitudinal positions.

8. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The horizontal limiting assembly has an upper and lower pair, located near the top and bottom of the independent cabin, respectively.

9. The ship independent cabin horizontal limiting device as described in claim 1, characterized in that: The horizontal limiting components are simultaneously installed on the front and rear sides of each independent cabin, and / or simultaneously on the left and right sides.

10. A horizontal limiting device for an independent cabin on a ship, characterized in that: Independent compartments are set up separately in their corresponding cargo hold spaces, and there are gaps between them and the bulkheads of the surrounding cargo hold spaces, which are divided into front and rear gaps and left and right gaps. A horizontal limiting component is provided within at least one of the front-to-back gap and the left-to-right gap, the horizontal limiting component comprising: Supports are fixedly installed on the side walls of independent compartments and cargo hold spaces, facing the ground, and the two supports are fixedly connected by hydraulic rods or springs (6).

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