Resistance reduction device and breeding platform

Abstract

The invention discloses a drag reduction device and a breeding platform, and relates to the technical field of drag reduction devices.The drag reduction device is used for drag reduction when the breeding platform sails, the drag reduction device is used for being installed at the stern of the breeding platform, the drag reduction device comprises a pipeline and a sealing assembly, and an inner cavity is formed in the pipeline; openings communicating with the inner cavity are formed in the two ends of the pipeline. The sealing assembly comprises a first control part, a plurality of first sealing plates and a plurality of second sealing plates, the first sealing plates are all mounted at an opening in one side of the pipeline, and the second sealing plates are all mounted at an opening in the other side of the pipeline; the first control part is used for driving the first sealing plates and the second sealing plates to move towards the centers of the openings or move away from the centers of the openings so as to close or open the openings in the two sides of the pipeline. In this way, seawater can enter the pipeline during sailing, the effect of reducing flow resistance can be achieved, and therefore the sailing speed of the breeding platform is increased.

Description

Technical Field

[0001] The invention relates to the technical field of drag reduction devices, and in particular to a drag reduction device and a breeding platform. Background Art

[0002] The deep-sea drag reduction device refers to a special ship that conducts aquaculture operations in open waters far from the coast. This ship integrates modern marine engineering technology and biotechnology, can operate stably in relatively harsh marine environments, and achieve efficient and environmentally friendly aquaculture.

[0003] Current deep-sea drag reduction devices are generally open-type drag reduction device hulls with a hollow middle and a water-permeable net enclosed to form a cage structure for aquaculture. This structure is convenient for aquaculture in marine areas, but will encounter greater resistance during navigation, resulting in a slower speed.

[0004] Therefore, it is necessary to provide a new drag reduction device and aquaculture platform to solve the above technical problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a drag reduction device and a breeding platform, aiming to improve the technical problem of the breeding platform in the prior art that the sailing speed is too slow.

[0006] To achieve the above object, according to one aspect of the present invention, the present invention provides a drag reduction device, which is used to reduce the drag of a breeding platform during navigation, and the drag reduction device is used to be installed at the stern of the breeding platform, comprising:

[0007] A pipe, wherein the pipe is formed with an inner cavity, and both ends of the pipe are formed with openings that communicate with the inner cavity;

[0008] A sealing assembly, the sealing assembly comprising a first control component, a plurality of first sealing plates and a plurality of second sealing plates, the plurality of first sealing plates being installed at the opening on one side of the pipe, the plurality of second sealing plates being installed at the opening on the other side of the pipe, the first control component being used to drive the plurality of first sealing plates and the plurality of second sealing plates to move toward or away from the center of the opening to close or open the openings on both sides of the pipe.

[0009] In one embodiment, the opening is a trumpet-shaped opening.

[0010] In one embodiment, the drag reduction device further includes a plurality of flow guide components, each of which extends along the length direction of the pipeline, each of which is installed on the inner wall of the inner cavity, and each of which surrounds the central axis of the pipeline.

[0011] In one embodiment, the drag reduction device also includes a second control component, the guide component includes a guide plate and a rotating shaft, the rotating shaft is installed on the inner wall of the inner cavity, the guide plate is rotatably installed on the rotating shaft, and the second control component is used to control the rotation of the rotating shaft.

[0012] In one embodiment, the drag reduction device further comprises a control component, and the control component is respectively connected to the second control component in each of the flow guide components by signal.

[0013] In one embodiment, the drag reduction device further includes a drain valve, the pipeline is further formed with a drain hole, the drain hole is used to connect the inner cavity with the outside, and the drain valve is installed in the drain hole.

[0014] In one embodiment, there are multiple drainage holes and multiple drainage valves, and the number of the multiple drainage holes is equal to the number of the multiple drainage valves and they are arranged in a one-to-one correspondence.

[0015] According to another aspect of the present invention, the present invention also provides a breeding platform, including a hull and the above-mentioned drag reduction device, wherein the stern of the hull is formed with an installation groove extending along the length direction of the hull, the drag reduction device is installed in the installation groove, and the drag reduction device is arranged away from the hull.

[0016] In one embodiment, there are multiple installation grooves, and the multiple installation grooves are arranged at intervals along the length direction perpendicular to the hull. There are multiple drag reduction devices, and the number of the multiple drag reduction devices is equal to the number of the multiple installation grooves, and they are arranged one by one.

[0017] In one embodiment, the breeding platform further comprises a main control computer, and the main control computer is respectively connected to the first control component in each of the drag reduction devices by signal.

[0018] In the above scheme, the drag reduction device is used to reduce the drag of the aquaculture platform when it is sailing, and the drag reduction device is used to be installed at the stern of the aquaculture platform. The drag reduction device includes a pipeline and a sealing assembly. The pipeline is formed with an inner cavity, and both ends of the pipeline are formed with openings that are interconnected with the inner cavity; the sealing assembly includes a first control component, a plurality of first sealing plates and a plurality of second sealing plates, the plurality of first sealing plates are all installed at the opening on one side of the pipeline, and the plurality of second sealing plates are all installed at the opening on the other side of the pipeline, and the first control component is used to drive the plurality of first sealing plates and the plurality of second sealing plates to move toward the center of the opening or away from the center of the opening to close or open the openings on both sides of the pipeline. Specifically, when the aquaculture platform is in a breeding state, the aquaculture area in the hull of the aquaculture platform exchanges water with seawater through the opening on the hull to ensure the breeding effect of the fish in the aquaculture area, and at this time the first control component drives the multiple second sealing plates to move toward the center of the opening of the pipeline toward the side of the hull, so that the multiple second sealing plates gather to close the opening of the pipeline toward the side of the hull, thereby preventing the aquacultured fish from entering the pipeline and then returning to the sea from the opening. When the aquaculture platform is in a navigation state, the first control component drives the multiple first sealing plates to move away from the center of the opening of the pipeline away from the side of the hull, so that the multiple first sealing plates disperse to open the opening of the pipeline away from the side of the hull, thereby During navigation, seawater will enter the pipeline from the opening, which can effectively reduce wake and turbulence, thereby reducing the resistance of the hull when moving in the water. By reducing resistance, not only the navigation speed and fuel efficiency can be improved, but also the stability and anti-roll ability of the aquaculture platform can be significantly improved. In the present invention, the movement of the first sealing plate is controlled by the first control component to realize the opening and closing of the opening, so that during navigation, seawater will enter the pipeline, which can play a role in reducing flow resistance, thereby increasing the speed of the aquaculture platform, and according to the speed and sea conditions, the opening size of the opening can be controlled by the first control component to control the flow rate and speed of water flowing through the pipeline, thereby realizing the adjustment of the navigation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the opening and closing of an embodiment of a drag reduction device provided by the present invention;

[0021] Figure 2 A schematic diagram of an opening of an embodiment of a drag reduction device provided by the present invention;

[0022] Figure 3 A schematic diagram of the opening adjustment of an embodiment of the drag reduction device provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 100. Drag reduction device; 11. Pipe; 12. Sealing assembly; 111. Inner cavity; 112. Opening; 121. First sealing plate; 13. Guide component; 131. Guide plate; 132. Rotating shaft; 113. Drain hole.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The deep-sea drag reduction device refers to a special ship that conducts aquaculture operations in open waters far from the coast. This ship integrates modern marine engineering technology and biotechnology, can operate stably in relatively harsh marine environments, and achieve efficient and environmentally friendly aquaculture.

[0030] Current deep-sea drag reduction devices are generally open-type drag reduction device hulls with a hollow middle and a water-permeable net enclosed to form a cage structure for aquaculture. This structure is convenient for aquaculture in marine areas, but will encounter greater resistance during navigation, resulting in a slower speed.

[0031] See also Figures 1 to 3 The present invention proposes a drag reduction device 100, which is used for reducing the drag of a farming platform during navigation, and is used to be installed at the stern of the farming platform. The drag reduction device 100 includes a pipe 11 and a sealing assembly 12. The pipe 11 is formed with an inner cavity 111, and both ends of the pipe 11 are formed with openings 112 that are interconnected with the inner cavity 111; the sealing assembly 12 includes a first control component, a plurality of first sealing plates 121 and a plurality of second sealing plates, the plurality of first sealing plates 121 are all installed at the opening 112 on one side of the pipe 11, and the plurality of second sealing plates are all installed at the opening 112 on the other side of the pipe 11, and the first control component is used to drive the plurality of first sealing plates 121 and the plurality of second sealing plates to move toward the center of the opening 112 or away from the center of the opening 112 to close or open the openings 112 on both sides of the pipe 11. Specifically, when the breeding platform is in a breeding state, the breeding area in the breeding platform hull exchanges water with seawater through the opening 112 on the hull to ensure the breeding effect of the fish in the breeding area, and at this time the first control component drives the multiple second sealing plates to move toward the center of the opening 112 of the pipe 11 on one side of the hull, so that the multiple second sealing plates gather to close the opening 112 of the pipe 11 on the side of the hull, thereby preventing the breeding fish from entering the pipe 11 and then returning to the sea from the opening 112. When the breeding platform is in a navigation state, the first control component drives the multiple first sealing plates 121 to move away from the center of the opening 112 on the side of the hull of the pipe 11, so that the multiple first sealing plates 121 disperse the pipe 11 away from the opening on the side of the hull. 112 is opened, so that during navigation, seawater will enter the pipe 11 from the opening 112, which can effectively reduce wake and turbulence, thereby reducing the resistance of the hull when moving in the water. By reducing the resistance, not only the navigation speed and fuel efficiency can be improved, but also the stability and anti-roll ability of the aquaculture platform can be significantly improved; in this embodiment, the movement of the first sealing plate 121 is controlled by the first control component to realize the opening and closing of the opening 112, so that during navigation, seawater will enter the pipe 11, which can play a role in reducing flow resistance, thereby increasing the speed of the aquaculture platform, and according to the speed and sea conditions, the opening size of the opening 112 can be controlled by the first control component to control the flow rate and speed of water flowing through the pipe 11, thereby realizing the adjustment of the navigation speed.

[0032] See also Figures 1 to 3In one embodiment, the opening 112 is a trumpet-shaped opening 112. Specifically, unlike the general circular or elliptical opening 112 design, the opening 112 in this embodiment is a trumpet-shaped opening 112, and the trumpet-shaped openings 112 on both sides of the pipe 11 can be completely closed, preventing external seawater from entering the breeding area during the breeding process, and preventing the fish in the breeding area from being lost through the pipe 11; the trumpet-shaped opening 112 can smoothly guide the seawater to enter or flow out, reduce turbulence and resistance, and thus improve the efficiency of fluid flow. The use of trumpet-shaped openings 112 at the entrance can help to evenly distribute the tax, reduce local pressure concentration, and improve the stability and reliability of the system. Due to the reduction of turbulence, the trumpet-shaped openings 112 can also reduce the noise generated by the flow of seawater.

[0033] See also Figures 1 to 3 In one embodiment, the drag reduction device 100 further includes a plurality of flow guide components 13, which extend along the length direction of the pipe 11, are mounted on the inner wall of the inner cavity 111, and surround the central axis of the pipe 11. Specifically, after seawater enters the pipe 11 through the opening 112, the plurality of flow guide components 13 in the pipe 11 can further optimize the flow field inside the pipe 11, improve the turning performance of the hull, and enhance the accuracy and safety of the operation.

[0034] See also Figures 1 to 3 In one embodiment, the drag reduction device 100 further includes a second control component, the guide component 13 includes a guide plate 131 and a rotating shaft 132, the rotating shaft 132 is mounted on the inner wall of the inner cavity 111, the guide plate 131 is rotatably mounted on the rotating shaft 132, and the second control component is used to control the rotation of the rotating shaft 132. Specifically, according to the current environment, that is, the sea conditions and the ship speed, the second control component controls the rotation of the rotating shaft 132, and the guide plate 131 rotates to a suitable angle, so that the plurality of second control components cooperate, so that the plurality of guide plates 131 are all located at a suitable angle, thereby changing the flow field inside the pipeline 11, and further realizing the function of drag reduction.

[0035] See also Figures 1 to 3 In one embodiment, the drag reduction device 100 further includes a control component, which is respectively connected to the second control component in each guide component 13 by signal. By controlling multiple second control components simultaneously through the control component, multiple second control components can be operated simultaneously, and multiple rotating shafts 132 can be driven to rotate simultaneously, thereby realizing simultaneous control of the guide plate 131 and improving the efficiency of adjusting the guide plate 131.

[0036] See also Figures 1 to 3In one embodiment, the drag reduction device 100 further includes a drain valve, and the pipeline 11 further forms a drain hole 113 , the drain hole 113 is used to connect the inner cavity 111 with the outside, and the drain valve is installed in the drain hole 113 . Specifically, when the aquaculture platform is in a navigation state, the first control component drives the plurality of first sealing plates 121 to move away from the center of the opening 112 on the side of the hull of the pipe 11, so that the plurality of first sealing plates 121 disperse and open the opening 112 on the side of the hull of the pipe 11, so that during navigation, seawater will enter the pipe 11 from the opening 112, which can effectively reduce wake and turbulence, thereby reducing the resistance of the hull when moving in the water. By reducing resistance, not only the navigation speed and fuel efficiency can be improved, but also the stability and anti-rolling ability of the aquaculture platform can be significantly improved; when the aquaculture platform is in a breeding state, the breeding area in the hull of the breeding platform exchanges water with seawater through the opening 112 on the hull to ensure the breeding effect of the fish in the breeding area, and at this time, the first control component drives the plurality of second sealing plates to move toward the center of the opening 112 on the side of the hull of the pipe 11, so that the plurality of second sealing plates gather and open the opening 112 on the side of the hull of the pipe 11. 12 is closed, so that the fish in the culture can be prevented from entering the pipe 11 and then returning to the sea from the opening 112. At this time, there may still be seawater in the pipe 11, which may affect the movement of the culture platform. In order to discharge the seawater from the pipe 11, the drain valve is opened, and the seawater in the pipe 11 will be discharged from the drain hole 113, thus ensuring the movement of the culture platform; in this embodiment, the movement of the first sealing plate 121 is controlled by the first control component to realize the opening and closing of the opening 112, so that seawater will enter the pipe 11 during navigation, which can play a role in reducing flow resistance, thereby increasing the speed of the culture platform, and according to the speed and sea conditions, the opening size of the opening 112 can be controlled by the first control component to control the flow rate and speed of water passing through the pipe 11, thereby realizing the adjustment of the speed; and the seawater in the pipe 11 is discharged through the drain hole 113 and the drain valve to ensure the normal navigation of the culture platform.

[0037] See also Figure 1 In one embodiment, the number of the drainage holes 113 is multiple, the number of the drainage valves is multiple, the number of the multiple drainage holes 113 is equal to the number of the multiple drainage valves, and they are arranged in a one-to-one correspondence; specifically, by setting a plurality of drainage holes 113, the efficiency of seawater drainage in the pipeline 11 can be improved. Compared with setting only one drainage hole 113, setting a plurality of drainage holes 113 can achieve higher drainage efficiency per unit time.

[0038] According to another aspect of the present invention, the present invention further provides a breeding platform, comprising a hull and the above-mentioned drag reduction device 100, the stern of the hull is formed with an installation groove extending along the length direction of the hull, the drag reduction device 100 is installed in the installation groove, and the drag reduction device 100 is arranged away from the hull; when the breeding platform is in a navigation state, the first control component drives multiple first sealing plates 121 to move away from the center of the opening 112 of the side of the pipe 11 away from the hull, so that the multiple first sealing plates 121 disperse and open the opening 112 of the side of the pipe 11 away from the hull, so that during the navigation process, seawater will enter the pipe 11 from the opening 112, which can effectively reduce wake and turbulence, thereby reducing the resistance of the hull when moving in the water. By reducing the resistance, not only the navigation speed and fuel efficiency can be improved, but also the stability and anti-roll ability of the breeding platform can be significantly improved; when the breeding platform is in a breeding state, the inside of the breeding platform hull The breeding area exchanges water with seawater through the opening 112 on the hull to ensure the breeding effect of the fish in the breeding area, and at this time the first control component drives the multiple second sealing plates to move toward the center of the opening 112 of the pipe 11 on the side of the hull, so that the multiple second sealing plates gather to close the opening 112 of the pipe 11 on the side of the hull, thereby preventing the farmed fish from entering the pipe 11 and then returning to the sea from the opening 112. At this time, there may still be seawater in the pipe 11, which may affect the movement of the breeding platform. In order to discharge the seawater from the pipe 11, the drain valve is opened, and the seawater in the pipe 11 will be discharged from the drain hole 113, thereby ensuring the movement of the breeding platform; since the breeding platform includes all implementation methods of all embodiments of the above-mentioned drag reduction device 100, it at least has all the beneficial effects brought by all the above-mentioned implementation methods, which will not be repeated here one by one.

[0039] In one embodiment, there are multiple installation slots, and the multiple installation slots are arranged at intervals along the length direction perpendicular to the hull. There are multiple drag reduction devices 100, and the number of the multiple drag reduction devices 100 is equal to the number of the multiple installation slots, and they are arranged one by one. Because multiple installation slots are arranged at the tail, and a drag reduction device 100 is installed in each installation slot, it is possible to adjust the number of drag reduction devices 100 to be opened according to different sea conditions, which can further improve the navigation performance of the aquaculture platform; when the aquaculture platform needs to turn, it is possible to choose to open only one side of the drag reduction device 100, which can reduce the resistance on one side, so that the aquaculture platform has better turning performance.

[0040] In one embodiment, the breeding platform further comprises a main control computer, which is respectively connected to the first control component in each drag reduction device 100 by signal. Specifically, the first control component in each drag reduction device 100 is respectively controlled by the main control computer, so that multiple modes of adjustment can be achieved, thereby improving the applicable range of the breeding platform.

[0041] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A drag reduction device, which is used to reduce the drag of a breeding platform during navigation, and is used to be installed at the stern of the breeding platform, characterized in that: include: A pipe, wherein the pipe is formed with an inner cavity, and both ends of the pipe are formed with openings communicating with the inner cavity; A sealing assembly, the sealing assembly comprising a first control component, a plurality of first sealing plates and a plurality of second sealing plates, the plurality of first sealing plates being installed at the opening on one side of the pipe, the plurality of second sealing plates being installed at the opening on the other side of the pipe, the first control component being used to drive the plurality of first sealing plates and the plurality of second sealing plates to move toward or away from the center of the opening to close or open the openings on both sides of the pipe.

2. The drag reduction device according to claim 1, characterized in that: The opening is a trumpet-shaped opening.

3. The drag reduction device according to claim 1, characterized in that: The drag reduction device also includes a plurality of flow guide components, each of which extends along the length direction of the pipeline, is installed on the inner wall of the inner cavity, and surrounds the central axis of the pipeline.

4. The drag reduction device according to claim 3, characterized in that: The drag reduction device also includes a second control component. The guide component includes a guide plate and a rotating shaft. The rotating shaft is installed on the inner wall of the inner cavity. The guide plate is rotatably installed on the rotating shaft. The second control component is used to control the rotation of the rotating shaft.

5. The drag reduction device according to claim 4, characterized in that: The drag reduction device further comprises a control component, and the control component is respectively connected to the second control component in each of the flow guide components by signal.

6. The drag reduction device according to any one of claims 1 to 5, characterized in that: The drag reduction device also includes a drain valve. The pipeline is also formed with a drain hole. The drain hole is used to connect the inner cavity with the outside. The drain valve is installed in the drain hole.

7. The drag reduction device according to claim 6, characterized in that: There are multiple drainage holes, and there are multiple drainage valves. The number of the multiple drainage holes is equal to the number of the multiple drainage valves, and they are arranged in a one-to-one correspondence.

8. A breeding platform, characterized in that: It comprises a hull and the drag reduction device described in any one of claims 1 to 7, wherein a mounting groove extending along the length direction of the hull is formed at the stern of the hull, the drag reduction device is installed in the mounting groove, and the drag reduction device is arranged away from the hull.

9. The breeding platform according to claim 8, characterized in that: There are multiple installation grooves, which are spaced apart along a length direction perpendicular to the hull. There are multiple drag reduction devices, which are equal to the number of installation grooves and are arranged in one-to-one correspondence.

10. The breeding platform according to any one of claims 8 or 9, characterized in that: The breeding platform also includes a main control computer, which is respectively connected to the first control component in each of the drag reduction devices by signal.

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