A freely combinable leakage diversion device for the outer wall panel of a Type B cabin

Abstract

A freely combinable leakage diversion device for the outer wall plate of a Type B cabin. The Type B cabin is fixed within the hull structure through a support structure. A leakage diversion device is fixed on the outer wall plate of the Type B cabin. The leakage diversion device includes a strip-shaped first diversion groove, a right-angled diversion groove, and a square diversion groove. The first diversion groove is butt-jointed by two first diversion pieces. The square diversion groove is formed by butt-jointing two square diversion pieces. The right-angled diversion groove is formed by butt-jointing four right-angled diversion pieces. Multiple first diversion grooves can be connected through the right-angled diversion groove or the square diversion groove. A liquid plugging or gas connection piece is fixed at one end of the first diversion groove away from the right-angled diversion groove or the square diversion groove. The present invention can be freely combined, and the leakage diversion device that completely fits the support structure is not affected by the complex arrangement of the support structure. At the same time, it can completely cover the fillet weld formed by the connection between the support structure and the outer wall plate, effectively guiding the flow of leaked liquid and avoiding danger.

Description

Technical Field

[0001] The present invention relates to the field of ship construction and manufacturing, and particularly to a leakage liquid diversion device provided on the outer wall plate of a Type B storage tank, which is a leakage diversion device that is not restricted by a support structure and can be freely combined. Background Art

[0002] The Type B tank is located inside the hull structure and is supported by a support structure. A large number of support structures are fixed on the outer wall plate of the Type B tank, and they are fixed to the toe ends of the support structures by fillet welding (as shown in Figure 1 , 2 ). During the movement of the hull, the alternating load will make such welds become high-risk areas for fatigue and crack propagation. It is necessary to set up a leakage diversion device to introduce the leaked cryogenic liquefied gas or liquid into the secondary screen wall collection tank. Generally, the leaked liquid is introduced into the secondary screen wall collection tank through a diversion pipe. However, due to the complex support structure, it is difficult to lay the diversion pipe, which in turn leads to difficulty in draining the leaked liquid. Summary of the Invention

[0003] To solve the above problems, the present invention provides a freely combinable leakage diversion device for the outer wall plate of a Type B tank, aiming to achieve the purpose of arranging the leakage diversion device reasonably without being affected by the support structure and making the leakage diversion device effectively drain the leaked liquid. The technical solution adopted is as follows:

[0004] A freely combinable leakage diversion device for the outer wall plate of a Type B tank. The Type B tank is fixed in the hull structure through a support structure, and a leakage diversion device is fixed on the outer wall plate of the Type B tank. The leakage diversion device has a long strip-shaped first diversion groove, and the first diversion groove is formed by docking two first diversion pieces to form a long strip-shaped groove. A plurality of the first diversion grooves can be connected by a right-angled diversion groove or a square diversion groove. One end of the first diversion groove away from the right-angled diversion groove or the square diversion groove is fixed with a liquid plugging or gas connection piece. The first diversion groove can be freely combined with the square diversion groove and the right-angled diversion groove. The right-angled diversion groove is located in the center, and its four toe ends can be respectively connected to a first diversion groove to form a diversion device with an overall "cross" shape. Two first diversion grooves can also be connected by a square diversion groove to form a diversion device with an overall "one" shape. The first diversion groove is formed by docking two arc-shaped first diversion pieces to form a groove, the square diversion groove is formed by docking two square diversion pieces, and the right-angled diversion groove is formed by docking four right-angled diversion pieces. By using such sheet-shaped diversion pieces, it is convenient to install them under the support structure, and they can fit with the support structure, further covering the fillet formed by the connection between the support structure and the outer wall plate.

[0005] The liquid plug has an open end and a sealed end. The open end of the liquid plug is arc-shaped and wraps around the end of the first diversion channel. The gas connector has a gas through-hole, and the gas through-hole communicates with the first diversion channel. The toe end of the diversion device is connected to the gas connector or the liquid plug. The liquid plug can block the excess leakage liquid generated by crack propagation, and the gas connector can allow an inert gas to flow through and lead out the inert gas.

[0006] The right-angled diversion channel is in an overall "cross" shape and has a sunken "cross" groove. The four toe ends of the right-angled diversion channel are butted against the first diversion channel. After butting, the groove of the right-angled diversion channel communicates with the groove of the first diversion channel.

[0007] The square diversion channel is formed by butting two square diversion pieces to form a square-shaped groove as a whole. The two ends of the square diversion channel can be butted against the first diversion channel. After butting, the groove of the square diversion channel communicates with the groove of the first diversion channel. At the center of the square diversion piece, there is a branch interface extending outwards, and the branch interface forms a 45° angle with the ground. This structure with a 45° angle to the ground is to fit the reinforcing rib of the support structure. The bottom edge of the reinforcing rib slopes upwards at 45°, and the branch interface can perfectly fit the bottom of the reinforcing rib, covering the weld angle formed by the connection between the reinforcing rib and the outer wall plate.

[0008] For the above-mentioned freely combinable leakage diversion device for the outer wall plate of the B-type cabin, further, the first diversion channel, the right-angled diversion channel, the square diversion channel, the liquid plug, the gas connector are bonded to the outer wall plate.

[0009] For the above-mentioned freely combinable leakage diversion device for the outer wall plate of the B-type cabin, further, the first diversion channel is adhesively connected to the right-angled diversion channel or the square diversion channel, and the first diversion channel is adhesively connected to the liquid plug or the gas connector.

[0010] For the above-mentioned freely combinable leakage diversion device for the outer wall plate of the B-type cabin, further, the gusset plate of the support structure is inserted into the first diversion channel and the right-angled diversion channel, and the reinforcing rib of the support structure is inserted into the groove of the square diversion channel. The gusset plate and the reinforcing rib of the support structure are connected to each other, and the structure is complex. Its bottom is completely embedded in the groove formed by the diversion channel, enabling the diversion channel to better fit the support structure and also better cover the weld angle formed by the connection between the support structure and the outer wall plate.

[0011] For the above-mentioned freely combinable leakage diversion device for the outer wall plate of the B-type cabin, further, the inert gas flows out through the gas through-hole.

[0012] The above-mentioned leak diversion device for the outer wall plate of the combinable B-type cabin. Further, the gusset plate of the support structure is bonded to the first diversion groove and the right-angled diversion groove, and the stiffener of the support structure is bonded to the square diversion groove.

[0013] The present invention is designed according to the structural characteristics of the hull support structure. It is a leak diversion device that can completely fit the support structure, fully cover the connection between the support structure and the outer wall plate, and is not affected by the complex layout of the support structure. At the same time, it can completely cover the fillet weld formed by the connection between the support structure and the outer wall plate, effectively guide the leakage liquid flow, and avoid danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the outer wall plate and the support structure;

[0015] Figure 2 is Figure 1 the enlarged schematic structural diagram of the circle in

[0016] Figure 3 is a schematic diagram after the leak diversion device is connected to the support structure;

[0017] Figure 4 is a schematic structural diagram of the leak diversion device;

[0018] Figure 5 is a schematic structural diagram of the end of the support structure;

[0019] Figure 6 is a schematic structural diagram of a square diversion groove arranged at the stiffener;

[0020] Figure 7 is a schematic structural diagram of a right-angled diversion groove arranged at the intersection of the gusset plate and the web;

[0021] Figure 8 is a schematic structural diagram of the liquid plug installed at the toe end of the leak diversion device;

[0022] Wherein: 1 - outer wall plate, 2 - support structure, 3 - web, 4 - gusset plate, 5 - stiffener, 6 - right-angled diversion groove, 7 - square diversion groove, 8 - first diversion groove, 9 - liquid plug, 10 - gas connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] A leak diversion device for the outer wall plate of the combinable B-type cabin. The B-type cabin is fixed in the hull structure through the support structure. The outer surface of the outer wall plate 1 of the B-type cabin is bonded with the support structure 2, as Figure 3As shown in the figure, according to the structural characteristics of the support structure, different diversion channels are used for splicing to form a leakage diversion device that fits the current support structure and can completely cover the fillet weld. A right-angle diversion channel 6 is used at the position where the bracket 4 of the support structure and the web 3 form a cross shape, a square diversion channel 7 is used at the position of the stiffener 5 of the support mechanism, and a first diversion channel 8 is used at the bracket or web of the support structure. At the stiffener, two square diversion pieces are butted to form a square diversion channel (as shown in Figure 6 ), and a branch interface extending outward and obliquely upward is provided at the center of the square diversion piece. The branch interface forms an angle of 45° with the ground. This 45° angle structure can make the branch interface of the square diversion channel fit the bottom of the stiffener, completely covering the fillet weld formed by the welding of the stiffener and the bracket to the outer wall plate. At the bracket or web, two first diversion pieces are butted to form a first diversion channel, wrapping the bottom of the bracket or web, that is, covering the fillet weld formed by the welding of the bracket or web to the outer wall plate. At the cross-shaped position where the bracket and the web intersect, four right-angle diversion pieces are butted to wrap the bottom of the bracket and the web (as shown in Figure 7 ), that is, covering the fillet weld formed by the welding of the bracket and the web to the outer wall plate. The diversion piece is made of stainless steel material with a thickness of 10 mm. The first diversion channel is adhesively bonded to the right-angle diversion channel and the square diversion channel with a low-temperature glue. Compared with the welding method, it can effectively reduce the local stress caused by the low-temperature shrinkage of the main screen wall of the B-type cabin and the residual stress caused by welding, forming an integral leakage diversion device (as shown in Figure 4 ).

[0026] At the toe end of the leakage diversion device, a liquid plug 9 or a gas connector 19 is fixed. One end of the liquid plug is closed and the other end is open, and the open end is connected to the toe end (as shown in Figure 8 ), and the liquid plug can further block the excess leakage liquid. The gas connector realizes the dual functions of inert gas (or nitrogen) gas circulation and leakage liquid diversion.

[0027] The leakage diversion device of the present invention can adopt different combination schemes according to the different structures of the support structure. It is preferably highly flexible and can comprehensively cover the welded joint of the support structure and the outer wall plate, thereby effectively guiding the leakage liquid.

[0028] The present invention is a leakage diversion device designed according to the structural characteristics of the hull support structure, which can completely fit the support structure. It is not affected by the complex layout of the support structure. At the same time, it can completely cover the connection between the support structure and the outer wall plate, especially the fillet weld formed by the connection between the support structure and the outer wall plate, effectively guiding the flow of the leakage liquid and avoiding danger.

Claims

1. A leak diversion device for the outer wall panel of a Type B cabin that can be freely combined. The Type B cabin is fixed within the hull structure through a support structure. A leak diversion device is fixed on the outer wall panel (1) of the Type B cabin, and it is characterized in that: The leakage diversion device has a long strip-shaped first diversion groove (8). The first diversion groove is formed by butting two first diversion pieces to form a long strip-shaped groove. A plurality of the first diversion grooves are connected by a right-angled diversion groove (6) or a square diversion groove (7). One end of the first diversion groove away from the right-angled diversion groove or the square diversion groove is fixed with a liquid seal (9) or a gas connector (10). One end of the liquid seal is open and the other end is sealed. The open end of the liquid seal is arc-shaped and wraps around the end of the first diversion groove. The gas connector has a gas through-hole, and the gas through-hole is communicated with the first diversion groove. The right-angled diversion groove is formed by butting four right-angled diversion pieces to form a groove with an overall "cross" shape. The four toe ends of the right-angled diversion groove are butted against the first diversion groove. After butting, the groove of the right-angled diversion groove is communicated with the groove of the first diversion groove. The square diversion groove is formed by butting two square diversion pieces to form a square-shaped groove. The two ends of the square diversion groove are butted against the first diversion groove. After butting, the groove of the square diversion groove is communicated with the groove of the first diversion groove. A branch interface extends outward from the center of the square diversion piece, and the branch interface forms an angle of 45° with the ground.

2. The leakage diversion device for the outer wall panel of the B-type cabin that can be freely combined according to claim 1, characterized in that: The first diversion groove, the right-angled diversion groove, the square diversion groove, the liquid seal, and the gas connector are bonded to the outer wall plate.

3. The leakage diversion device for the outer wall panel of the B-type cabin that can be freely combined according to claim 1, characterized in that: The first diversion groove is adhesively connected to the right-angled diversion groove or the square diversion groove, and the first diversion groove is adhesively connected to the liquid seal or the gas connector.

4. The leak diversion device for the outer wall panel of the B-type cabin that can be freely combined according to claim 1, wherein: The gusset plate (4) of the support structure is inserted into the first diversion groove and the right-angled diversion groove, and the reinforcing rib (5) of the support structure is inserted into the groove of the square diversion groove.

5. The leakage diversion device for the outer wall panel of the B-type cabin that can be freely combined according to claim 1, characterized in that: Inert gas flows out through the gas through-hole.

6. The leak diversion device for the outer wall panel of the B-type cabin that can be freely combined according to claim 4, characterized in that: The gusset plate of the support structure is adhesively connected to the first diversion groove and the right-angled diversion groove, and the reinforcing rib of the support structure is adhesively connected to the square diversion groove.

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