Ship liquid tank swash device

Abstract

The utility model discloses a ship liquid tank swash device, and belongs to the technical field of ship liquid tank swash. A first support steel plate with a semi-ring-shaped second support steel plate is arranged on the four walls of the liquid tank, a third support steel plate with a semi-ring-shaped fourth support steel plate is arranged in the center of the bottom of the tank, and sliding rails in the horizontal direction and the vertical direction are formed. The two ends of the cross-shaped swash plate are welded to the first connecting pipe and the second connecting pipe which are embedded in the track respectively, and the floating ball is fixed to the top end of the swash plate. The first connecting pipe and the second connecting pipe form a closed cavity through the pipe cover plate, and the closed cavity and the floating ball jointly provide buoyancy, so that the swash plate can freely ascend and descend and horizontally slide along the semi-annular track along with the height of the liquid level. The inner wall of the semi-annular track is in clearance fit with the outer wall of the connecting pipe. Limiting plates are arranged at the two ends of the track to prevent disengagement. The movable oscillation suppression structure adapts to the working conditions of rolling and pitching of the ship, the cross-shaped oscillation suppression plate driven by buoyancy is used for suppressing free liquid level shaking of liquid in the liquid tank, and the ship navigation stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship liquid tank oscillation technology field especially, relates to a ship liquid tank oscillation device. BACKGROUND

[0002] The prior art is as follows: ① porous bulkhead design, impact pressure amplitude is reduced by fluid friction and flow guiding effect. ② vertical partition design, through bidirectional fluid-structure coupling model verification, elastic partition (Young's modulus optimization) can reduce impact pressure peak value. ③ horizontal partition design, combined with annular partition or floating anchor chain structure, the sloshing energy under liquid surface resonance frequency is suppressed. From the ship design point of view, mainly the porous bulkhead design is most.

[0003] However, during the navigation of the ship, since the liquid tank is not filled, the liquid surface is in contact with air, when the ship shakes, the liquid surface will change accordingly, keeping parallel with the water surface outside the ship, this change will affect the shape of the liquid and its center of gravity position, thereby reducing the stability of the ship.

[0004] Therefore, we propose a ship liquid tank oscillation device. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the shortcomings in the prior art that during the navigation of the ship, since the liquid tank is not filled, the liquid surface is in contact with air, when the ship shakes, the liquid surface will change accordingly, keeping parallel with the water surface outside the ship, this change will affect the shape of the liquid and its center of gravity position, thereby reducing the stability of the ship, and proposes a ship liquid tank oscillation device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A ship liquid tank oscillation device, comprising:

[0008] First support steel plates fixed respectively on the inner walls of four sides of the ship liquid tank, one side of each first support steel plate is fixed with a second support steel plate, the second support steel plate is semicircular, and a first connecting pipe is slidably accommodated in the semicircular space of the second support steel plate;

[0009] A third support steel plate fixed on the center position of the inner wall of the bottom of the ship liquid tank, fourth support steel plates are fixed on the four sides of the third support steel plate, the fourth support steel plates are semicircular, and a second connecting pipe is slidably accommodated in the semicircular space of the fourth support steel plate;

[0010] Four oscillation plates are distributed in a cross shape, and the two ends of each oscillation plate are fixedly connected with the first connecting pipe and the second connecting pipe respectively, and each branch is perpendicular to the inner wall of the liquid tank;

[0011] Four floating balls are fixed respectively on the top ends of the four oscillation plates.

[0012] In a possible design, the first support steel plate is a folding plate with a folding angle, and the folding plate surface is attached to the inner wall of the liquid tank.

[0013] In a possible design, the inner wall of the semi-circular space of the second support steel plate is gap-fitted with the outer wall of the first connecting pipe, and the inner wall of the semi-circular space of the fourth support steel plate is gap-fitted with the outer wall of the second connecting pipe.

[0014] In a possible design, the top end and the bottom end of the second support steel plate and the fourth support steel plate are provided with limiting plates to limit the vertical movement range of the first connecting pipe and the second connecting pipe.

[0015] In a possible design, the top end and the bottom end of the first connecting pipe and the second connecting pipe are welded with pipe cover plates to form closed cavities to provide buoyancy.

[0016] In a possible design, the thickness of the first support steel plate, the second support steel plate, the third support steel plate and the fourth support steel plate is 6mm.

[0017] In a possible design, the thickness of the oscillation plate is 8mm.

[0018] In a possible design, the floating ball is an air bag, and the buoyancy of the air bag and the closed cavities of the first connecting pipe and the second connecting pipe jointly act on the oscillation plate to make the oscillation plate slide along the semi-circular track according to the liquid level height.

[0019] During installation, the first support steel plate is welded and fixed with the four walls of the liquid tank, the semi-circular tracks of the second support steel plate and the fourth support steel plate are assembled with the first connecting pipe and the second connecting pipe respectively, the oscillation plate is welded to connect the two connecting pipes, and finally the floating ball and the pipe cover plate are installed.

[0020] Beneficial effects:

[0021] The utility model considers the ship roll and pitch, fixes four floating balls on the oscillation plate, simultaneously, the upper and lower ends of the first connecting pipe and the second connecting pipe connected with the side edge of the oscillation plate are closed, guarantees the first connecting pipe, the second connecting pipe and the floating ball provide necessary buoyancy, utilizes the track of four directions of outside and four directions of middle part can be changed freely according to the liquid level change, further reduces the influence of free liquid level, ensures the safety when the ship is sailing.

[0022] Normally only one direction is considered, and the utility model considers the oscillation demand of two directions, and the buoyancy provided by the floating ball and the connecting pipe can be changed freely according to the liquid level change, so that effective oscillation is achieved.

[0023] The utility model has simple overall structure design, convenient installation, and suitable parts for production. Attached Figure Description

[0024] Fig. 1 This is a schematic diagram of the plan view of a ship liquid tank anti-sloshing device proposed in this utility model;

[0025] Fig. 2 This is a side view structural schematic diagram of a ship liquid tank anti-sloshing device proposed in this utility model;

[0026] Fig. 3 This is a cross-sectional structural schematic diagram of a ship liquid tank anti-sloshing device proposed in this utility model.

[0027] In the diagram: 1. First support steel plate; 2. Second support steel plate; 3. Squeezing plate; 4. Third support steel plate; 5. Fourth support steel plate; 6. First connecting pipe; 7. Limiting plate; 8. Pipe cover plate; 9. Second connecting pipe; 10. Float. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Refer to Figs. 1-3 A buoyancy-controlling device includes: a first support steel plate 1, a second support steel plate 2, a buoyancy-controlling plate 3, a third support steel plate 4, a fourth support steel plate 5, a first connecting pipe 6, a limiting plate 7, a pipe cover plate 8, a second connecting pipe 9, and a float 10. The first support steel plate 1 is a folded plate with a 60° angle, welded and fixed to the inner walls of the four sides of the ship's liquid tank. Its folded plate structure increases the contact area with the liquid tank wall, improving support stability. The second support steel plate 2 is welded and fixed to the side of the first support steel plate 1, forming a semi-annular shape. The first connecting pipe 6 is embedded in the semi-annular space of the second support steel plate 2, with the inner and outer walls of both fitting together. Pipe cover plates 8 are welded to the top and bottom ends of the first connecting pipe 6, forming a closed cavity to store air and provide buoyancy.

[0030] The third support steel plate 4 is welded to the center of the inner wall at the bottom of the liquid tank, and fourth support steel plates 5 are welded to its four sides. The fourth support steel plate 5 is also semi-annular, and the second connecting pipe 9 is embedded within this semi-annular space, with their inner and outer walls in contact. Pipe caps 8 are welded to the top and bottom of the second connecting pipe 9, forming a closed cavity that, together with the first connecting pipe 6, provides buoyancy. Limiting plates 7 are welded to the top and bottom of both the second support steel plate 2 and the fourth support steel plate 5, respectively, to restrict the vertical movement of the first connecting pipe 6 and the second connecting pipe 9, preventing them from derailing.

[0031] The application can be used in the field of ship liquid tank sloshing, and can also be used in other fields applicable to the application.

[0032] Embodiment 2: a ship liquid tank sloshing device improved on the basis of embodiment 1, which is applied to the field of ship liquid tank sloshing.

[0033] The sloshing plate 3 is in a cross shape, and four ends thereof are welded and fixed with the first connecting pipe 6 and the second connecting pipe 9, respectively, and each branch keeps a vertical state with the inner wall of the liquid tank. The thickness of the sloshing plate 3 is 8 mm, and the liquid impact force is dispersed to four directions through the cross structure to reduce local stress concentration. The top end of the sloshing plate 3 is fixed with a floating ball 10, and the buoyancy of the floating ball 10 cooperates with the closed cavities of the first connecting pipe 6 and the second connecting pipe 9 to make the sloshing plate 3 freely ascend and descend along the semi-circular track and horizontally slide along with the liquid level change.

[0034] The thicknesses of the first supporting steel plate 1, the second supporting steel plate 2, the third supporting steel plate 4 and the fourth supporting steel plate 5 are all 6 mm, which reduces the overall weight of the device while meeting the structural strength. The semi-circular track of the second supporting steel plate 2 and the fourth supporting steel plate 5 allows the first connecting pipe 6 and the second connecting pipe 9 to move in the transverse and longitudinal directions of the liquid tank at the same time, and the position of the sloshing plate 3 is self-adaptively adjusted by the buoyancy of the floating ball 10 to suppress the free surface fluctuation of the liquid caused by the transverse and longitudinal rolling of the ship.

[0035] The drawings in the specification of the application are only of a schematic nature, and the sizes and shapes of the components shown are not actual limitations but only a schematic representation. In the actual implementation process, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] The above is only a preferred specific implementation manner of the application, but the protection scope of the application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A ship tank sloshing device, characterized by, The utility model relates to a kind of liquid tank stabilizer for ship, including: First support steel plate (1) is respectively fixed in the inner wall of four sides of ship liquid tank, one side of the first support steel plate (1) is fixed with second support steel plate (2), the second support steel plate (2) is half ring, and first connecting pipe (6) is slidably contained in its half ring space; Third support steel plate (4) is fixed in the inner wall center position of ship liquid tank bottom, fourth support steel plate (5) is fixed in the four sides of the third support steel plate (4), the fourth support steel plate (5) is half ring, and second connecting pipe (9) is slidably contained in its half ring space; Four stabilizing plates (3) are distributed in cross shape, and two ends thereof are fixedly connected with the first connecting pipe (6) and the second connecting pipe (9), and each branch is perpendicular to the inner wall of liquid tank; Four floating balls (10) are respectively fixed in the top of four stabilizing plates (3).

2. A tank sloshing device for a marine vessel according to claim 1, wherein, The first support steel plate (1) is the folding plate of 60 ° angle, and the folding plate surface is attached to the inner wall of liquid tank.

3. A tank sloshing device for a marine vessel as claimed in claim 1, wherein, The inner wall of the half ring space of the second support steel plate (2) is gap matched with the outer wall of first connecting pipe (6), and the inner wall of the half ring space of the fourth support steel plate (5) is gap matched with the outer wall of second connecting pipe (9).

4. A tank sloshing device for a marine vessel as claimed in claim 1, wherein, The top and bottom of the second support steel plate (2) and the fourth support steel plate (5) are provided with limit plate (7), and the vertical movement range of the first connecting pipe (6) and the second connecting pipe (9) is limited.

5. A tank sloshing device for a marine vessel as claimed in claim 1, wherein, The top and bottom of the first connecting pipe (6) and the second connecting pipe (9) are welded with pipe cover plate (8), and closed cavity is formed to provide buoyancy.

6. A tank sloshing device for a marine vessel as claimed in claim 1, wherein, The thickness of the first support steel plate (1), the second support steel plate (2), the third support steel plate (4) and the fourth support steel plate (5) is 6mm.

7. A tank sloshing device for a marine vessel as defined in claim 1, wherein The thickness of the stabilizing plate (3) is 8mm.

8. A tank sloshing device for a marine vessel as claimed in claim 1, wherein, The floating ball (10) is air bag, and the buoyancy and the closed cavity of the first connecting pipe (6) and the second connecting pipe (9) jointly act, so that stabilizing plate (3) slides along half ring track along with liquid level.

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