Traction floating stopping mechanism and supporting system for independent liquid cargo tank of ship

Abstract

The invention discloses a ship independent liquid cargo tank traction floating stopping mechanism and a supporting system. According to the traction floating stopping mechanism and the supporting system, the traction floating stopping mechanism (6) is arranged between the inner bottom of a main hull structure (1) and the bottom of an independent liquid cargo tank (2), and the traction floating stopping mechanism can form downward traction on the independent liquid cargo tank based on the main hull structure; the traction floating stopping mechanism comprises two rope fixing seats (61) and a traction rope (62), the two rope fixing seats are fixedly arranged at the inner bottom of the main ship body structure and the bottom of the independent liquid cargo tank respectively, and the two ends of the traction rope are assembled and connected with the two rope fixing seats respectively; the supporting system comprises the traction floating stopping mechanisms, and the multiple traction floating stopping mechanisms are evenly and discretely arranged. When the main hull structure is damaged, water enters the independent liquid cargo tank, and the independent liquid cargo tank begins to float upwards, the independent liquid cargo tank cannot float upwards and collide with the main hull structure under the traction action of the traction floating stopping mechanism.

Description

Technical Field

[0001] The present invention relates to a ship cargo hold structure, and in particular to a pulling and anti-floating mechanism and a support system for an independent liquid cargo hold of a ship. Background Art

[0002] An independent liquid cargo hold of a ship is a ship cargo hold specifically used for transporting liquid cargo. This cargo hold is separated from the main hull structure of the ship, so that the cargo can be stored, transported and unloaded in the independent liquid cargo hold.

[0003] Generally, an independent liquid cargo hold is provided with a set of complex support systems. During operation, various loads such as the weight of the independent liquid cargo hold and the cargo, the additional load of movement, and the load of loading and unloading temperature are transmitted to the main hull structure through the independent liquid cargo hold support system.

[0004] See Figure 1 , for the support system provided for the independent liquid cargo hold 2, there are 4 types of supports set according to different functions, namely a vertical support 3, an anti-roll support 4, a longitudinal limit support (not shown in the figure), and an anti-floating support 5.

[0005] Among them, the vertical support 3 provides the vertical support of the independent liquid cargo hold 2, and the anti-roll support 4 and the longitudinal limit support are used to limit the relative displacement between the independent liquid cargo hold 2 and the main hull structure 1. The anti-floating support 5 prevents the independent liquid cargo hold 2 from floating up and colliding with the main hull structure 1 when the main hull structure 1 is damaged and flooded.

[0006] A variety of supports should be reasonably arranged and sufficient in quantity, and meet the requirements of support and limit functions. Currently, the supports are usually composed of a support structure, laminated wood, epoxy resin, and stainless steel sheets, and are connected by bolts, with a complex structure and construction process.

[0007] It should be particularly noted that the anti-floating support 5 is to prevent the independent liquid cargo hold 2 from floating up and colliding with the main hull structure 1 when the main hull structure 1 is damaged and flooded. Specifically, when the main hull structure 1 is damaged and flooded, the buoyancy received by the independent liquid cargo hold 2 is greater than its own gravity, and the independent liquid cargo hold 2 floats up until the anti-floating support 5 contacts the main hull structure 1. And the body of the independent liquid cargo hold 2 will not collide with the main hull structure 1. In this way, the structural safety of the whole ship can be ensured.

[0008] The current problem is:

[0009] The existing installation structure of the anti-floating support 5 is complex, and it needs to be composed of multiple components such as a support structure, laminated wood, and epoxy resin. Moreover, the installation accuracy requirements are also very high, which makes the entire installation process extremely cumbersome and complex, resulting in a relatively high cost (including labor cost, material cost, and time cost) required for setting the anti-floating support 5, and thus it is not conducive to popularization and implementation. Summary of the Invention

[0010] The object of the present invention is to provide a pulling and anti-floating mechanism and a support system for an independent liquid cargo tank of a ship. The pulling and anti-floating mechanism in the support system can prevent the independent liquid cargo tank from floating up and colliding with the main hull structure, thereby avoiding damage to the hull.

[0011] In order to achieve the above technical object, the present invention adopts the following technical solutions:

[0012] A pulling and anti-floating mechanism for an independent liquid cargo tank of a ship, wherein the independent liquid cargo tank is arranged in the main hull structure; the pulling and anti-floating mechanism is arranged between the inner bottom of the main hull structure and the bottom of the independent liquid cargo tank, and the pulling and anti-floating mechanism can form a downward pulling force on the independent liquid cargo tank based on the main hull structure.

[0013] Further, the pulling and anti-floating mechanism includes two rope fixing seats and a pulling rope. The two rope fixing seats are respectively fixedly arranged on the inner bottom of the main hull structure and the bottom of the independent liquid cargo tank, and the two ends of the pulling rope are respectively assembled and connected with the two rope fixing seats.

[0014] Further, the rope fixing seat is an eye plate, and the pulling rope is a steel wire rope or a chain.

[0015] A support system for an independent liquid cargo tank of a ship, wherein the independent liquid cargo tank is arranged in the main hull structure; the support system includes a plurality of pulling and anti-floating mechanisms as described above, and the plurality of pulling and anti-floating mechanisms are evenly and discretely arranged.

[0016] Further, the support system also includes a plurality of vertical supports, anti-rolling supports and longitudinal limit supports; the vertical supports are arranged at the gaps between the inner bottom of the main hull structure and the outer side of the bottom of the independent liquid cargo tank, and the plurality of vertical supports are evenly and discretely arranged; the plurality of anti-rolling supports are divided into two groups and are respectively arranged at the gaps between the inner side of the top of the main hull structure and the outer side of the top of the independent liquid cargo tank, and between the inner bottom of the main hull structure and the outer side of the bottom of the independent liquid cargo tank, and these anti-rolling supports are evenly and discretely arranged along the longitudinal axis of the hull; the plurality of longitudinal limit supports,...

[0017] Further, the plurality of pulling and anti-floating mechanisms and vertical supports arranged at the gaps between the inner bottom of the main hull structure and the outer side of the bottom of the independent liquid cargo tank are arranged in a staggered and spaced arrangement form.

[0018] The pulling and anti-floating mechanism and support system for an independent liquid cargo tank of the present invention have the following beneficial effects compared with the prior art:

[0019] 1) A pulling and anti-floating mechanism is arranged at the gap between the inner bottom of the main hull structure and the outer side of the bottom of the independent liquid cargo tank. It can form a downward pulling effect on the independent liquid cargo tank based on the main hull structure. When the situation of "the main hull structure is damaged and flooded, and the independent liquid cargo tank in the main hull structure starts to float due to the rising water level" occurs, under the pulling action of numerous pulling and anti-floating mechanisms, the independent liquid cargo tank will not float and collide with the main hull structure;

[0020] 2) The pulling and anti-floating mechanism arranged at the gap between the inner bottom of the main hull structure and the outer side of the bottom of the independent liquid cargo tank has a simple structure, is very convenient to implement and construct, and has a low cost, thus being conducive to large-scale promotion;

[0021] 3) Setting the pulling and anti-floating mechanism at the bottom of the hull can make full use of the strong structures at the bottom of the hull and the bottom of the independent liquid cargo tank, which not only meets the requirements but also is a more favorable arrangement. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the support system for the independent liquid cargo tank of a ship in the prior art, and this figure is a cross-sectional view of the hull structure;

[0023] Figure 2 It is a schematic diagram of the support system for the independent liquid cargo tank of the ship of the present invention, and this figure is a cross-sectional view of the hull structure;

[0024] Figure 3 It is an enlarged schematic diagram of the pulling and anti-floating mechanism in the support system for the independent liquid cargo tank of the ship of the present invention. Detailed Embodiment

[0025] The following further describes the detailed embodiment of the present invention:

[0026] In this embodiment, for the independent liquid cargo tank of the ship, a support system is provided.

[0027] See Figure 2 , the support system provided in this embodiment is similar to the support system in the prior art, and also adopts a vertical support 3, an anti-rolling support 4 and a longitudinal limit support (not shown in the figure). The main difference is that in this embodiment, the design of the original anti-floating support 5 is removed, and instead, a new design of a pulling and anti-floating mechanism 6 is adopted to replace the function of the anti-floating support 5, that is, "prevent the top of the independent liquid cargo tank 2 from colliding with the main hull structure 1".

[0028] More specifically, the support system of this embodiment includes a certain number of vertical supports 3, anti-rolling supports 4 and longitudinal limit supports (not shown in the figure).

[0029] The described certain number of vertical supports 3 are all disposed at the gap between the inner bottom of the main hull structure 1 and the outer bottom of the independent liquid cargo tank 2, and these vertical supports 3 are evenly and discretely arranged. These vertical supports 3 are used to provide vertical support for the independent liquid cargo tank 2.

[0030] The described certain number of anti-rolling supports 4 are divided into two groups and are respectively disposed at the gap between the inner top of the main hull structure 1 and the outer top of the independent liquid cargo tank 2, and at the gap between the inner bottom of the main hull structure 1 and the outer bottom of the independent liquid cargo tank 2, and these anti-rolling supports 4 are evenly and discretely arranged along the longitudinal axis of the hull. These anti-rolling supports 4 are used to limit the lateral displacement of the independent liquid cargo tank 2 relative to the main hull structure 1.

[0031] The described certain number of longitudinal limiting supports are disposed at the gap between the inner bottom of the main hull structure 1 and the outer bottom of the independent liquid cargo tank 2, and these longitudinal limiting supports are evenly and discretely arranged along the transverse axis of the hull. These longitudinal limiting supports are used to limit the longitudinal displacement of the independent liquid cargo tank 2 relative to the main hull structure 1.

[0032] The most important design in the support system of this embodiment lies in a kind of pulling and anti-floating mechanism 6 mentioned above.

[0033] Specifically, the support system of this embodiment also includes a large number of pulling and anti-floating mechanisms 6. These pulling and anti-floating mechanisms 6 are all disposed at the gap between the "inner bottom of the main hull structure 1" and the "outer bottom of the independent liquid cargo tank 2", and these pulling and anti-floating mechanisms 6 are evenly and discretely arranged. These pulling and anti-floating mechanisms 6 are used to prevent the situation of "when the main hull structure 1 is damaged and flooded, the independent liquid cargo tank 2 floats up and collides with the main hull structure 1", thereby avoiding damage to the hull.

[0034] More specifically,

[0035] See Figure 3 , for a single pulling and anti-floating mechanism 6, the pulling and anti-floating mechanism 6 includes two rope fixing seats 61 and a pulling rope 62. The two rope fixing seats 61 are respectively fixedly disposed at the "inner bottom of the main hull structure 1" part and the "outer bottom of the independent liquid cargo tank 2" part, and the two ends of the pulling rope 62 are respectively assembled and connected with the two rope fixing seats 61. In this way, these pulling and anti-floating mechanisms 6 can form a downward pulling effect on the independent liquid cargo tank 2 based on the main hull structure 1.

[0036] The functional implementation principle of this pulling and anti-floating mechanism 6 is as follows:

[0037] When the situation of "the main hull structure 1 takes in water due to damage and the independent liquid cargo tank 2 inside the main hull structure 1 starts to float upward as the water level rises" occurs, under the pulling action of numerous pulling and anti-floating mechanisms 6, the independent liquid cargo tank 2 will not actually float upward, thus ensuring that the upper part of the independent liquid cargo tank 2 will not collide with the main hull structure 1.

[0038] The design solution of the pulling and anti-floating mechanism 6 provided in this embodiment can replace the original design solution of the "anti-floating support". It can not only achieve the basic requirement effect of "preventing the top of the independent liquid cargo tank from colliding with the main hull structure", but also be more convenient to implement, with lower costs, which is conducive to large-scale promotion.

[0039] It should be noted that setting the anti-floating mechanism at the bottom of the hull can make full use of the strong structures at the bottom of the hull and the bottom of the independent liquid cargo tank (usually stronger structural members are arranged at the bottom of the hull and the independent liquid cargo tank), which not only meets the requirements but also is a more advantageous arrangement.

[0040] It should be noted that in this embodiment, numerous pulling and anti-floating mechanisms 6 and vertical supports 3 are arranged at the gap between the inner bottom of the main hull structure 1 and the outer side of the bottom of the independent liquid cargo tank 2 in a layout form of "staggered at intervals one by one". The advantage of this setting is that by arranging the pulling and anti-floating mechanism 6 near the vertical support 3, the strong structure of the vertical support 3 can be effectively utilized and the load distribution is more reasonable.

[0041] It should be noted that in this embodiment, the rope fixing seat 61 adopts a common eye plate, and the pulling rope 62 can adopt a steel wire rope or a chain.

[0042] It should be noted that the vertical support 3, the anti-rolling support 4 and the longitudinal limit support are all devices of the prior art, and the structural designs of these devices are all public. Those skilled in the art can clearly understand the structural composition and assembly and use methods of these devices by querying public materials.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pulling and anti-floating mechanism for an independent liquid cargo tank of a ship, wherein the independent liquid cargo tank (2) is arranged in the main hull structure (1); It is characterized in that: The pulling and anti-floating mechanism (6) is arranged between the inner bottom of the main hull structure (1) and the bottom of the independent liquid cargo tank (2), and the pulling and anti-floating mechanism (6) can form a downward pulling force on the independent liquid cargo tank (2) based on the main hull structure (1).

2. The independent liquid cargo tank pulling and anti-floating mechanism for a ship according to claim 1, characterized in that: The pulling and anti-floating mechanism (6) includes two rope fixing seats (61) and a pulling rope (62). The two rope fixing seats (61) are respectively fixedly arranged on the inner bottom of the main hull structure (1) and the bottom of the independent liquid cargo tank (2), and the two ends of the pulling rope (62) are respectively assembled and connected to the two rope fixing seats (61).

3. The pulling and anti-floating mechanism for the independent liquid cargo tank of a ship according to claim 2, wherein: The rope fixing seat (61) is an eye plate, and the pulling rope (62) is a steel wire rope or a chain.

4. A supporting system for an independent liquid cargo tank of a ship, wherein the independent liquid cargo tank (2) is arranged in the main hull structure (1); It is characterized in that: The supporting system includes a plurality of pulling and anti-floating mechanisms (6) as described in any one of claims 1 to 3, and the plurality of pulling and anti-floating mechanisms (6) are evenly and discretely arranged.

5. The independent liquid cargo tank support system for a ship according to claim 4, characterized in that: The supporting system further includes a plurality of vertical supports (3), anti-rolling supports (4) and longitudinal limiting supports; The vertical supports (3) are arranged at the gaps between the inner bottom of the main hull structure (1) and the outer side of the bottom of the independent liquid cargo tank (2), and the plurality of vertical supports (3) are evenly and discretely arranged; The plurality of anti-rolling supports (4) are divided into two groups and are respectively arranged at the gaps between the inner side of the top of the main hull structure (1) and the outer side of the top of the independent liquid cargo tank (2), and between the inner bottom of the main hull structure (1) and the outer side of the bottom of the independent liquid cargo tank (2), and these anti-rolling supports (4) are evenly and discretely arranged along the longitudinal axis of the ship; The plurality of longitudinal limiting supports are arranged at the gaps between the inner bottom of the main hull structure (1) and the outer side of the bottom of the independent liquid cargo tank (2), and these longitudinal limiting supports are evenly and discretely arranged along the transverse axis of the ship.

6. The independent liquid cargo tank support system for a ship according to claim 5, characterized in that: The plurality of pulling and anti-floating mechanisms (6) and vertical supports (3) arranged at the gaps between the inner bottom of the main hull structure (1) and the outer side of the bottom of the independent liquid cargo tank (2) are arranged in a staggered interval arrangement form.

Images