Wind scooper and container ship

Abstract

The invention discloses a wind scooper and a container ship, and relates to the technical field of ship manufacturing. The wind scooper is of a curved surface structure arranged on a ship bow of the ship body and comprises a main body part, the width of the main body part is gradually increased from the front portion to the rear portion of the ship body, and the main body part extends from the ship bow to the upper portion of the ship body and is symmetrically arranged on the two sides of the ship body in the width direction. Therefore, high pressure of partial areas caused by the fact that wind directly blows on goods behind the ship can be avoided, airflow behind the wind scooper is attached to the goods on the ship, and wind resistance in the operation process of the ship body is reduced. In the direction from the center to the two sides in the width direction of the ship body, the distance from the upper edge of the main body part to the rear end of the main body part in the length direction of the ship body is increased firstly and then decreased, so that the main body part is in a double-convex shape, and air at different positions is guided to the rear portion more smoothly; air blown from the front of the ship bow is smoothly transited to goods at the back, obvious turbulent flow generated when air flow directly blows to the goods is reduced, and energy dissipation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to a wind deflector and a container ship. Background Art

[0002] The resistance encountered by ships during operation can be divided into wind resistance and water resistance due to different fluid media. In terms of wind resistance, there are two main factors that change the wind resistance of ships. One is that different stacking modes lead to different wind loads; the other is to change the wind resistance by setting a wind deflector at the bow. Among them, container ships have a larger windward area than other ship types, so the wind resistance is more obvious and the energy consumption is higher. However, the wind deflector in the existing technology is not effective in reducing wind resistance. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of large wind resistance and large energy consumption during the operation of ships in the prior art, and to provide a wind deflector and a container ship.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides a wind deflector, which is a curved surface structure arranged at the bow of a hull, and comprises a main body portion, the width of which gradually widens from the front to the rear of the hull, the main body portion extends from the bow to the top of the hull, and the main body portion is symmetrically arranged on both sides of the width direction of the hull;

[0006] In the direction from the center of the width direction of the hull to both sides, the distance from the upper edge of the main body part to the rear end of the main body part in the length direction of the hull first increases and then decreases, so that the main body part is biconvex and the upper edge of the main body part is streamlined.

[0007] In this scheme, a wind guide cover is set at the bow of the hull, and the wind guide cover includes a main part. The width of the main part gradually widens from the front to the rear of the hull, and the main part extends from the bow to the top of the hull, thereby preventing the wind from blowing directly on the cargo at the rear and causing high pressure in some areas, so that the airflow behind the wind guide cover fits the cargo on the ship, reducing the wind resistance during the operation of the hull, and can reduce the energy consumption during the operation of the ship. The wind guide cover adopts a curved structure to make the surface of the wind guide cover smoother and the effect of guiding the wind direction is better.

[0008] In the direction from the center of the width direction of the hull to both sides, the distance from the upper edge of the main part to the rear end of the main part in the length direction of the hull first increases and then decreases, so that the main part is biconvex. By setting the main part to be biconvex, the air at different positions can be more smoothly directed to the rear, so that the air blowing in front of the bow can smoothly transition to the rear cargo, reducing the obvious turbulence generated when the airflow blows directly to the cargo, thereby reducing energy dissipation. The upper edge of the main part is streamlined, so that the edge of the wind guide cover is smoother, the effect of reducing wind resistance is better, and the appearance of the ship is more dynamic and the shape is more beautiful. In addition, the wind guide cover can also serve as a wave-breaking board of the ship, reducing the bow waves and improving safety and comfort.

[0009] Preferably, in the length direction of the hull, the maximum distance from the lower edge of the main body part to the rear end of the main body part is L1, the maximum distance from the upper edge of the main body part to the rear end of the main body part is L2, and the minimum distance from the upper edge of the main body part to the rear end of the main body part is L3;

[0010] L1>L2>L3.

[0011] In this scheme, the wind guide cover is made to satisfy L1>L2>L3, thereby forming a double convex shape, and the air at different positions is guided to the rear more smoothly, so that the air blowing in from the front of the bow can be smoothly transitioned to the rear cargo, reducing the obvious turbulence generated when the airflow blows directly to the cargo, thereby reducing energy dissipation.

[0012] Preferably, in a direction from below the hull to above the hull, the main body portion extends obliquely toward the rear of the hull.

[0013] In the present scheme, by tilting and extending the main body toward the rear of the hull from the bottom of the hull to the top of the hull, when the wind blows towards the wind guide cover, the airflow can be lifted upward, so that the airflow can avoid the cargo behind the wind guide cover, and the shape of the wind guide cover can be more in line with the direction of wind flow, so that the wind guide cover can better reduce the wind resistance during the operation of the hull and reduce the energy consumption during the operation of the ship.

[0014] Preferably, the angle between the lower end of the main body portion and the horizontal plane is A1, the angle between the lower end of the main body portion and the horizontal plane is A2, and A2>A1.

[0015] In this solution, by setting the angle between the main body and the horizontal plane to satisfy A2>A1, the airflow is directed upward at a larger angle. Combined with the double convex form, the air guide cover can achieve global smooth guidance with a smaller overall height.

[0016] Preferably, the air guide cover further includes a transition portion, the transition portion is connected to the bottom of the main body portion, and the shape of the upper edge of the transition portion matches the shape of the lower edge of the main body portion.

[0017] In this solution, the wind guide cover also includes a transition part, which is connected to the bottom of the main part. The transition part cooperates with the main part, so that the wind guide cover has a better effect of reducing wind resistance. The height of the transition part can be adjusted to find a better combination of the transition part and the main part, so that the wind resistance is lower. The shape of the upper edge of the transition part matches the shape of the lower edge of the main part, so that the transition part and the main part can be better connected, thereby enhancing the strength of the wind guide cover.

[0018] Preferably, in the height direction of the hull, the transition portion extends vertically upward from the bow away from the bow.

[0019] In this solution, the transition part extends vertically upward from the bow away from the bow, so that the effect of increasing the height of the transition part is better. By adjusting the height of the transition part, a better combination of the transition part and the main part is found to reduce wind resistance.

[0020] Preferably, the wind deflector further comprises a forecastle portion, the forecastle portion is connected to the lower portion of the transition portion, and the shape of the lower edge of the forecastle portion matches the shape of the bow;

[0021] And / or, the shape of the upper edge of the forecastle portion matches the shape of the lower edge of the transition portion.

[0022] In this solution, the wind deflector further includes a forecastle part, which is connected to the bottom of the transition part. The forecastle part can also serve as the forecastle of the ship. The shape of the lower edge of the forecastle part matches the shape of the bow, so that the forecastle part is better connected to the bow. The shape of the upper edge of the forecastle part matches the shape of the lower edge of the transition part, so that the forecastle part and the transition part can be better connected, thereby enhancing the strength of the wind deflector.

[0023] Preferably, in the height direction of the hull, the forecastle portion extends obliquely from the bow away from the bow toward the outer side of the hull.

[0024] In this solution, the forecastle part is extended obliquely from the bow away from the bow toward the outside of the hull, thereby increasing the width of the wind deflector to match the widest part of the hull, so that the wind deflector has a better effect of reducing wind resistance.

[0025] The present invention further provides a container ship, comprising the above-mentioned wind deflector and a container, wherein the container is arranged behind the wind deflector.

[0026] Preferably, the height of the container exceeding the deck of the hull is H, the height of the wind deflector is h, and h<0.6*H.

[0027] In this solution, by making the height of the air guide cover satisfy h<0.6*H, the height of the air guide cover can be lowered, thereby reducing the material consumption and the cost.

[0028] The positive and progressive effects of the present invention are:

[0029] A wind deflector is set at the bow of the hull, and the wind deflector includes a main part. The width of the main part gradually widens from the front to the rear of the hull, and the main part extends from the bow to the top of the hull, thereby preventing the wind from blowing directly on the cargo at the rear and causing high pressure in some areas, so that the airflow behind the wind deflector fits the cargo on the ship, reducing the wind resistance during the operation of the hull, and can reduce the energy consumption during the operation of the ship. The wind deflector adopts a curved structure, which makes the surface of the wind deflector smoother and the effect of guiding the wind direction is better.

[0030] In the direction from the center of the width direction of the hull to both sides, the distance from the upper edge of the main part to the rear end of the main part in the length direction of the hull first increases and then decreases, so that the main part is biconvex. By setting the main part to be biconvex, the air at different positions can be more smoothly directed to the rear, so that the air blowing in front of the bow can smoothly transition to the rear cargo, reducing the obvious turbulence generated when the airflow blows directly to the cargo, thereby reducing energy dissipation. The upper edge of the main part is streamlined, so that the edge of the wind guide cover is smoother, the effect of reducing wind resistance is better, and the appearance of the ship is more dynamic and the shape is more beautiful. In addition, the wind guide cover can also serve as a wave-breaking board of the ship, reducing the bow waves and improving safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a partial three-dimensional structure of a container ship according to an embodiment of the present invention.

[0032] Figure 2 It is a partial side view of a container ship according to an embodiment of the present invention.

[0033] Figure 3 The figure is a front view of an air guide cover according to an embodiment of the present invention.

[0034] Figure 4 FIG. 4 is a top view of an air guide cover according to an embodiment of the present invention.

[0035] Figure 5 The figure is a side view of an air guide cover according to an embodiment of the present invention.

[0036] Figure 6 FIG. 4 is a top view of an air guide cover according to another embodiment of the present invention.

[0037] Figure 7 A diagram showing the pressure distribution before a wind deflector is provided on a container ship according to an embodiment of the present invention.

[0038] Figure 8 This is a pressure distribution diagram of a container ship after a wind deflector is provided according to an embodiment of the present invention.

[0039] Fig. 9 This is a velocity flow field distribution diagram before a wind deflector is provided on a container ship according to an embodiment of the present invention.

[0040] Fig.10 This is a velocity flow field distribution diagram of a container ship after a wind deflector is provided according to an embodiment of the present invention.

[0041] Fig.11 This is a diagram of resistance variation before a wind deflector is provided on a container ship according to an embodiment of the present invention.

[0042] Fig.12 This is a diagram showing the change in resistance after a wind deflector is provided on a container ship according to an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] Container ship 100

[0045] Hull 110

[0046] Bow 112

[0047] Air guide hood 200

[0048] Main body 210

[0049] Transition Section 220

[0050] Forecastle section 230

[0051] Container 300 DETAILED DESCRIPTION

[0052] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the following examples.

[0053] like Figure 1 and Figure 2 As shown, this embodiment provides a container ship 100, which includes the above-mentioned wind deflector 200 and a container 300, and the container 300 is arranged behind the wind deflector 200. By providing the wind deflector 200, the wind blowing directly on the container 300 is diverted, the fluid disturbance and separation are reduced, and the wind resistance on the container ship 100 is reduced, so as to achieve the effect of energy saving and emission reduction.

[0054] like Figure 2-Figure 5As shown, the wind deflector 200 is a curved structure arranged at the bow 112 of the hull 110. The wind deflector 200 includes a main body 210. The width of the main body 210 gradually widens from the front to the rear of the hull 110. The main body 210 extends from the bow 112 to the top of the hull 110. The main body 210 is symmetrically arranged on both sides of the width direction of the hull 110, so as to prevent the wind from blowing directly on the cargo at the rear and causing high pressure in some areas, so that the airflow behind the wind deflector 200 fits the cargo on the ship, reduces the wind resistance during the operation of the hull 110, and can reduce the energy consumption during the operation of the ship. The wind deflector 200 adopts a curved structure, which makes the surface of the wind deflector 200 smoother and the effect of guiding the wind direction is better.

[0055] In the direction from the center of the width direction of the hull 110 to both sides, the distance from the upper edge of the main part 210 to the rear end of the main part 210 in the length direction of the hull 110 increases first and then decreases, so that the main part 210 is biconvex. By setting the main part 210 to be biconvex, the air at different positions is more smoothly directed to the rear, so that the air blowing in front of the bow 112 smoothly transitions to the rear cargo, reducing the obvious turbulence generated when the airflow blows directly to the cargo, thereby reducing energy dissipation. The upper edge of the main part 210 is streamlined, so that the edge of the wind guide cover 200 is smoother, the effect of reducing wind resistance is better, and the appearance of the ship is more dynamic and the shape is more beautiful. In addition, the wind guide cover 200 can also serve as a wave-breaking board of the ship, reducing the bow waves, and improving safety and comfort.

[0056] In the length direction of the hull 110, the maximum distance from the lower edge of the main body 210 to the rear end of the main body 210 is L1, the maximum distance from the upper edge of the main body 210 to the rear end of the main body 210 is L2, and the minimum distance from the upper edge of the main body 210 to the rear end of the main body 210 is L3; L1>L2>L3. By making the wind deflector 200 satisfy L1>L2>L3, the wind deflector 200 forms a double convex shape, thereby guiding the air at different positions to the rear more smoothly, so that the air blowing in front of the bow 112 can smoothly transition to the rear cargo, reducing the obvious turbulence generated when the airflow blows directly to the cargo, thereby reducing energy dissipation. Figure 5 FIG. 2 shows the shape of the air guide cover 200 of this embodiment. Figure 6 A slightly flatter shape is shown, and those skilled in the art may select one according to actual needs.

[0057] In the direction from the bottom of the hull 110 to the top of the hull 110, the main body 210 extends obliquely toward the rear of the hull 110, so that when the wind blows towards the wind guide cover 200, the airflow can be lifted upward, allowing the airflow to avoid the cargo behind the wind guide cover 200, making the shape of the wind guide cover 200 more in line with the direction of wind flow, so that the wind guide cover 200 can better reduce the wind resistance of the hull 110 during operation, thereby reducing energy consumption during ship operation.

[0058] The angle between the lower end of the main body 210 and the horizontal plane is A1, and the angle between the lower end of the main body 210 and the horizontal plane is A2, where A2>A1. By satisfying the angle between the main body 210 and the horizontal plane A2>A1, the airflow is directed upward at a larger angle, and combined with the double convex form, the air guide cover 200 can achieve global smooth guidance with a smaller overall height.

[0059] The wind deflector 200 further includes a transition portion 220, which is connected to the lower part of the main body 210. The transition portion 220 cooperates with the main body 210, so that the wind deflector 200 has a better effect of reducing wind resistance. The height of the transition portion 220 can be adjusted to find a better combination of the transition portion 220 and the main body 210, so that the wind resistance is lower. The shape of the upper edge of the transition portion 220 matches the shape of the lower edge of the main body 210, so that the transition portion 220 and the main body 210 can be better connected, thereby enhancing the strength of the wind deflector 200.

[0060] In the height direction of the hull 110, the transition portion 220 extends vertically upward from the bow 112 to away from the bow 112, so that the transition portion 220 has a better effect of increasing the height. By adjusting the height of the transition portion 220, a better combination of the transition portion 220 and the main body portion 210 is found to reduce wind resistance.

[0061] The wind deflector 200 further includes a forecastle portion 230, which is connected to the lower portion of the transition portion 220. The shape of the lower edge of the forecastle portion 230 matches the shape of the bow 112, so that the forecastle portion 230 is better connected to the bow 112. The shape of the upper edge of the forecastle portion 230 matches the shape of the lower edge of the transition portion 220, so that the forecastle portion 230 and the transition portion 220 can be better connected, thereby enhancing the strength of the wind deflector 200.

[0062] In the height direction of the hull 110, the forecastle part 230 extends obliquely from the bow 112 to the outside of the hull 110 away from the bow 112, thereby increasing the width of the wind deflector 200 to match it with the widest part of the hull 110, so that the wind deflector 200 can better reduce wind resistance.

[0063] like Figure 3As shown, the maximum width of the lower end of the forecastle part 230 is B1, the maximum width of the upper end of the forecastle part 230 is B2, and the maximum width of the hull 110 is B, wherein B1<B2<B.

[0064] like Figure 3 As shown, the height of the forecastle part 230 is H1, the height of the transition part 220 is H2, the maximum height of the main part 210 is H3, the height of the wind deflector 200 is h, h=H1+H2+H3, the height of the container 300 exceeding the deck of the hull 110 is H, h<0.6*H, so that the height of the wind deflector 200 can be significantly reduced, reducing materials and reducing costs.

[0065] like Figure 7 and Figure 8 As shown in the pressure distribution diagram in FIG. 1 , different colors represent different pressures. When the wind guide cover 200 is not added, the high pressure area at the bow 112 is obvious. After the wind guide cover 200 is installed, the range and peak value of the high pressure area are reduced.

[0066] like Fig. 9 and Fig.10 As shown in the velocity flow field in FIG. 1 , different colors represent different wind speeds. Before the wind guide cover 200 is installed, the airflow disturbance on the top of the container 300 is obvious and has a large impact range. After the wind guide cover 200 is installed, the airflow is more smoothly guided from the bow 112 to the container 300. The flow field fits the container 300 body and the disturbance range is relatively small, thereby achieving the purpose of reducing wind resistance.

[0067] like Fig.11 and Fig.12 It can be seen from the resistance curve that in the wind direction of the bow 112, the wind resistance can be reduced by 20% after the wind guide cover 200 is installed, and the effect of reducing the wind resistance is obvious.

[0068] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or element in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation of the present invention in this regard.

[0069] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An air guide cover, characterized in that: The wind deflector is a curved structure provided at the bow of the hull, and includes a main body portion, the width of the main body portion gradually widens from the front to the rear of the hull, the main body portion extends from the bow to the top of the hull, and the main body portion is symmetrically arranged on both sides of the width direction of the hull; In the direction from the center of the width direction of the hull to both sides, the distance from the upper edge of the main body part to the rear end of the main body part in the length direction of the hull first increases and then decreases, so that the main body part is biconvex and the upper edge of the main body part is streamlined.

2. The air guide cover according to claim 1, characterized in that: In the length direction of the hull, the maximum distance from the lower edge of the main body part to the rear end of the main body part is L1, the maximum distance from the upper edge of the main body part to the rear end of the main body part is L2, and the minimum distance from the upper edge of the main body part to the rear end of the main body part is L3; L1>L2>L3.

3. The air guide cover according to claim 1, characterized in that: The main body portion extends obliquely toward the rear of the hull in a direction from the bottom of the hull to the top of the hull.

4. The air guide cover according to claim 3, characterized in that: The included angle between the lower end of the main body part and the horizontal plane is A1, and the included angle between the lower end of the main body part and the horizontal plane is A2, and A2>A1.

5. The air guide cover according to any one of claims 1 to 4, characterized in that: The wind guide cover also includes a transition portion, which is connected to the lower part of the main body portion, and the shape of the upper edge of the transition portion matches the shape of the lower edge of the main body portion.

6. The air guide cover according to claim 5, characterized in that: In the height direction of the hull, the transition portion extends vertically upward from the bow away from the bow.

7. The air guide cover according to claim 6, characterized in that: The wind deflector further includes a forecastle portion, the forecastle portion is connected to the lower portion of the transition portion, and the shape of the lower edge of the forecastle portion matches the shape of the bow; And / or, the shape of the upper edge of the forecastle portion matches the shape of the lower edge of the transition portion.

8. The air guide cover according to claim 7, characterized in that: In the height direction of the hull, the forecastle part extends obliquely from the bow away from the bow toward the outer side of the hull.

9. A container ship, characterized in that: The container ship comprises the wind deflector as described in any one of claims 1 to 8 and a container, and the container is arranged behind the wind deflector.

10. The container ship according to claim 9, characterized in that: The height of the container above the deck of the hull is H, the height of the wind deflector is h, and h<0.6*H.

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