Bow thrusting curved surface type flow guide grille and ship

Abstract

The utility model provides a bow thruster curved surface type flow guide grille and a ship, the flow guide grille comprises a vertical flat steel bar, the outer edge line of the vertical flat steel bar is matched with the line type of a ship body outer plate at the position where the vertical flat steel bar is located; the outer edge lines of the longitudinal flat steel bars are matched with the line type of the hull outer plate at the positions where the longitudinal flat steel bars are located, and the longitudinal flat steel bars and the vertical flat steel bars are perpendicularly crossed to form a curved surface latticed structure; the connecting eye plates are arranged at the two ends of the vertical flat steel bars and the longitudinal flat steel bars, and the outer edge lines of the connecting eye plates are matched with the line type of the hull outer plate. The outer edge line of the curved grid is the same as the line type of the outer plate of the ship body, so that the outer edge line of the curved grid is smooth and consistent with the line type of the outer plate of the ship body, the spatial distance between the traditional planar flow guide grid and the outer plate of the ship body is eliminated, the retention of flow choking obstacles is reduced, and the hydrodynamic performance of the ship is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship accessory technical field, especially a bow side thrust curved surface type flow guide grid. BACKGROUND

[0002] With the development of shipping industry and the progress of ship design technology, the maneuverability and energy efficiency of the ship become important considerations in the design. The bow side thruster, as a device to improve the maneuverability of the ship, is widely used in various types of ships, especially in narrow water areas or in work environments that require precise positioning. The bow side thruster generates thrust on the side of the bow to help the ship perform operations such as turning, docking, and shifting.

[0003] In the prior art, the bow side thrust flow guide grid is usually designed as a planar structure and is installed in the bow side thrust flow guide pipe. Although this design can achieve a certain flow guiding effect, it also has some shortcomings. Specifically, there is a space distance between the outboard end face of the planar flow guide grid and the hull plating. This space is prone to retaining flow resistance obstacles such as marine organisms and sediments, which can affect the flow guiding effect and reduce the performance of the bow side thruster. In addition, the presence of the planar flow guide grid also breaks the streamline of the hull plating, affecting the hydrodynamic performance of the ship and increasing the resistance of the ship, thereby affecting the energy efficiency and maneuverability of the ship. SUMMARY

[0004] Therefore, the utility model solves the technical problems in the prior art and provides a bow side thrust curved surface type flow guide grid and a ship. The outer edge line of the grid is designed as a curved surface, which matches the line type of the hull plating at the location, achieving smooth consistency with the line type of the hull plating, eliminating the space distance between the traditional planar flow guide grid and the hull plating, reducing the retention of flow resistance obstacles, and improving the hydrodynamic performance of the ship.

[0005] In a first aspect, to solve the above technical problems, the utility model provides a bow side thrust curved surface type flow guide grid, comprising:

[0006] a vertical flat steel strip, the outer edge line of which matches the line type of the hull plating at the location;

[0007] a longitudinal flat steel strip, the outer edge line of which matches the line type of the hull plating at the location, and the longitudinal flat steel strip and the vertical flat steel strip are perpendicular to each other to form a curved surface grid structure;

[0008] a connecting eye plate, which is provided at both ends of the vertical flat steel strip and the longitudinal flat steel strip and whose outer edge line matches the line type of the hull plating.

[0009] In one embodiment of the utility model, the longitudinal flat steel strip is provided with a plurality of clamping grooves at equal intervals along the length direction, and the vertical flat steel strip is embedded into the clamping grooves to realize the connection with the longitudinal flat steel strip.

[0010] In one embodiment of the utility model, the cross-sectional width of the longitudinal flat steel strip is the same as that of the vertical flat steel strip.

[0011] In one embodiment of the utility model, the connecting eye plate is connected and fixed with the end of the vertical flat steel strip and the longitudinal flat steel strip through bolts and nuts.

[0012] In one embodiment of the utility model, a connecting plate is added at the connecting position of the connecting eye plate and the vertical flat steel strip and the longitudinal flat steel strip to improve the stability and reliability of the connection.

[0013] In one embodiment of the utility model, a reinforcing structure is arranged at the intersection of the vertical flat steel strip and the longitudinal flat steel strip to enhance the overall strength and impact resistance of the flow guide grid.

[0014] In one embodiment of the utility model, reinforcing ribs are arranged on the back or inside of the vertical flat steel strip and the longitudinal flat steel strip.

[0015] In one embodiment of the utility model, a drainage hole is arranged on the connecting eye plate to prevent water accumulation.

[0016] In one embodiment of the utility model, the surface of the vertical flat steel strip, the longitudinal flat steel strip and the connecting eye plate is coated with an anti-corrosion coating.

[0017] In a second aspect, to solve the above technical problems, the utility model provides a ship comprising the bow side thrust curved surface type flow guide grid.

[0018] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0019] The bow side thrust curved surface type flow guide grid has the same outer edge line of the grid as the outer plate line type of the ship body, realizes the smooth consistency with the outer plate line type of the ship body, removes the influence of the outer plate line type separation caused by the planar type flow guide grid, improves the hydrodynamic performance of the ship, eliminates the space distance between the planar type flow guide grid and the outer plate, reduces the possibility of retaining the resistance flow obstacles such as marine organisms and sediments in the space, improves the flow guide efficiency, the curved surface type design increases the flow guide area of the side thrust grid, more water flow can be effectively guided, the side thrust effect is increased, and the performance of the bow side thruster is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the bow-side curved guide grille in a preferred embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the bow-side curved guide grille in a preferred embodiment of the present invention;

[0023] Figure 3 for Figure 1 The diagram shows the structural schematic of the bow thrust curved guide grille being installed on the hull plating.

[0024] Figure 4 for Figure 3 The cross-sectional view shown is of the bow thrust curved guide grille mounted on the hull hull aft.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Vertical flat steel bar; 2. Longitudinal flat steel bar; 3. Connecting eye plate; 4. Bolt; 5. Nut; 6. Hull plating; 7. Bow thruster tube. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example

[0027] Reference Figures 1-4 As shown, this utility model provides a bow-side curved guide grille, comprising:

[0028] The outer edge of the vertical flat steel bar 1 matches the profile of the hull plate 6 at its location;

[0029] The longitudinal flat steel bar 2 has an outer edge line that matches the line shape of the hull plate 6 at its location, and the longitudinal flat steel bar 2 and the vertical flat steel bar 1 intersect perpendicularly to form a curved grid structure.

[0030] The connecting eye plate 3 is set at both ends of the vertical flat steel bar 1 and the longitudinal flat steel bar 2, and its outer edge line matches the line shape of the hull plate 6.

[0031] The curved flow guide grille, which matches the hull line 6 of the aforementioned hull, eliminates the spatial distance between the traditional planar flow guide grille and the hull line 6, reduces the presence of flow obstructions, and improves the ship's hydrodynamic performance.

[0032] The longitudinal flat steel strip 2 is provided with a plurality of clamping grooves at equal intervals along the length direction in this embodiment, and the vertical flat steel strip 1 is embedded into the clamping grooves to realize the connection with the longitudinal flat steel strip 2. After the vertical flat steel strip 1 is embedded into the clamping grooves, it can be fixedly connected with the longitudinal flat steel strip 2 through the welding connection, thereby realizing the stable connection of the two.

[0033] Through the design of the clamping grooves, the connection of the vertical flat steel strip 1 and the longitudinal flat steel strip 2 is more accurate, avoiding the misalignment problem that may occur in traditional welding, improving the structural stability and strength of the flow guide grid; the embedded connection mode is convenient for disassembly and replacement of damaged flat steel strips, improving the maintenance convenience of the flow guide grid, simplifying the installation and maintenance process; the evenly spaced clamping grooves also ensure the uniform distribution of the connection points of the vertical flat steel strip 1 and the longitudinal flat steel strip 2, further optimizing the structural layout of the flow guide grid, making it perform more uniformly and efficiently in water flow guiding, eliminating the gaps or protrusions that may occur in traditional connection, making the surface of the flow guide grid smoother, reducing the resistance when the water flows through, and improving the water flow guiding efficiency. These improvements significantly improve the overall performance of the flow guide grid, making it perform well in ship water power performance optimization and maneuverability improvement.

[0034] The cross-sectional width of the longitudinal flat steel strip 2 is the same as that of the vertical flat steel strip 1 in this embodiment. By ensuring that the cross-sectional width of the longitudinal flat steel strip 2 is the same as that of the vertical flat steel strip 1, the consistency and uniformity of the flow guide grid structure are realized, which helps to improve the overall strength and stability of the flow guide grid.

[0035] The connecting eye plate 3 is connected and fixed with the end portions of the vertical flat steel strip 1 and the longitudinal flat steel strip 2 through the bolts 4 and the nuts 5. By connecting and fixing the connecting eye plate 3 through the bolts 4 and the nuts 5, a simple and effective installation method is provided, which is convenient for the installation and maintenance of the flow guide grid.

[0036] In this embodiment, the connecting eye plate 3 is welded in the bow side thrust flow pipe 7 according to the position and is connected and fixed with the end portions of the vertical flat steel strip 1 and the longitudinal flat steel strip 2 through the bolts 4 and the nuts 5. After the bolts 4 and the nuts 5 are tightly fixed, they are respectively spot welded with the vertical flat steel strip 1, the longitudinal flat steel strip 2 and the connecting eye plate 3 at two to four points to prevent loosening. The plate thickness and cross-sectional width of the vertical flat steel strip 1, the longitudinal flat steel strip 2 and the connecting eye plate 3, as well as the material and specifications of the bolts 4 and the nuts 5, are determined according to the design strength.

[0037] In this embodiment, a connecting plate is added at the connection between the connecting eye plate 3 and the vertical flat steel strip 1 and the longitudinal flat steel strip 2 to improve the stability and reliability of the connection. The addition of the connecting plate at the connection between the connecting eye plate 3 and the vertical flat steel strip 1 and the longitudinal flat steel strip 2 enhances the stability and reliability of the connection and improves the structural strength of the flow guide grid.

[0038] Further, the intersection of the vertical flat steel bars 1 and the longitudinal flat steel bars 2 is provided with a reinforcing structure to enhance the overall strength and impact resistance of the flow guide grid. The reinforcing structure at the intersection of the vertical flat steel bars 1 and the longitudinal flat steel bars 2 significantly enhances the overall strength and impact resistance of the flow guide grid, improving its durability in severe sea conditions.

[0039] Further, reinforcing ribs are arranged on the back or inside of the vertical flat steel bars 1 and the longitudinal flat steel bars 2. The reinforcing ribs arranged on the back or inside of the vertical flat steel bars 1 and the longitudinal flat steel bars 2 further enhance the bending and compression resistance of the flow guide grid, improving its structural stability.

[0040] In the embodiment, the connecting eye plate 3 is provided with a drainage hole to prevent water accumulation. This design reduces the additional burden caused by water accumulation, improving the durability of the flow guide grid.

[0041] Further, the vertical flat steel bars 1, the longitudinal flat steel bars 2 and the surface of the longitudinal flat steel bars 2 are coated with an anti-corrosion coating. The design of the anti-corrosion coating improves the corrosion resistance of the flow guide grid, prolonging its service life.

[0042] It should be noted that the included angle α between the longitudinal flat steel bars 2 and the horizontal center line is determined by the water entry angle of the model test. In the model test, by measuring the performance indicators (such as water flow guiding efficiency, ship maneuvering performance, etc.) under different water entry angles, an optimal water entry angle can be determined. This optimal water entry angle directly determines the installation angle of the longitudinal flat steel bars 2, i.e. the included angle α. The setting of this angle aims to optimize the hydrodynamic performance of the flow guide grid, so that it can more effectively guide water flow in actual application, improving the maneuverability and energy efficiency of the ship. Embodiment

[0043] The utility model provides a kind of ship, including the bow side thrust curved surface type flow guide grid described in embodiment one.

[0044] Obviously, the above embodiments are only examples for clarity, and are not limited to the implementation. For ordinary skilled in the art, other different forms of changes or variations can be made based on the above description. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A bow side thruster curved fairwater characterized in that, The application relates to a bow side thrust curved surface type flow guide grid, which comprises the following parts: vertical flat steel strips, the outer edge lines of which match the hull plate line type at the positions; longitudinal flat steel strips, the outer edge lines of which match the hull plate line type at the positions, and the longitudinal flat steel strips and the vertical flat steel strips are perpendicularly crossed into a curved surface grid structure; connecting eye plates, which are arranged at the two ends of the vertical flat steel strips and the longitudinal flat steel strips and the outer edge lines of which match the hull plate line type.

2. A bow thrust curved fairwater according to claim 1, characterised in that A plurality of clamping grooves are arranged on the longitudinal flat steel strips along the length direction at equal intervals, and the vertical flat steel strips are embedded into the clamping grooves to realize the connection with the longitudinal flat steel strips.

3. A bow thruster curved fairwater according to claim 2, characterized in that The cross-sectional width of the longitudinal flat steel strips is the same as that of the vertical flat steel strips.

4. A bow thrust curved fairwater according to claim 1, characterized in that The connecting eye plates are connected and fixed with the end portions of the vertical flat steel strips and the longitudinal flat steel strips through bolts and nuts.

5. A bow thrust curved fairwater according to claim 1, characterized in that Connecting plates are added at the connecting positions of the connecting eye plates, the vertical flat steel strips and the longitudinal flat steel strips to improve the stability and reliability of the connection.

6. A bow thrust curved fairwater according to claim 1, characterized in that Reinforcing structures are arranged at the intersection points of the vertical flat steel strips and the longitudinal flat steel strips to enhance the overall strength and impact resistance of the flow guide grid.

7. A bow thrust curved fairwater according to claim 1, characterized in that Reinforcing ribs are arranged at the back or inside of the vertical flat steel strips and the longitudinal flat steel strips.

8. A bow thrust curved fairwater according to claim 1, characterized in that Drainage holes are arranged on the connecting eye plates to prevent water accumulation.

9. A bow thrust curved fairwater according to claim 1, wherein The surfaces of the vertical flat steel strips, the longitudinal flat steel strips and the connecting eye plates are coated with an anticorrosion coating.

10. A ship comprising the bow side thrust curved surface type flow guide grid according to any one of claims 1 to 9.

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