Energy dissipation device, moon pool and ship
By installing a buffer plate, a perforated plate, and a turbulence-dissipating component in the moon pool, the problem of insufficient energy dissipation due to fluid sloshing in the moon pool is solved, achieving efficient energy dissipation, reducing equipment vibration and noise, and improving safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI ZHENHUA HEAVY IND
- Filing Date
- 2025-12-30
- Publication Date
- 2026-05-29
Smart Images
Figure CN121448556B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of marine technology, specifically to an energy dissipation device, a moon pool, and a ship. Background Technology
[0002] Moon pools are common vertical openings penetrating the hull of research vessels, drilling platforms, and pipelaying vessels with Type J pipelaying systems, providing a passage for the deployment, construction, and retrieval of underwater equipment. However, the presence of a moon pool disrupts the continuity of the main hull, and the fluid (seawater) inside it experiences violent sloshing under the excitation of the ship's motion. The sloshing fluid periodically and violently impacts the inner wall of the moon pool, generating significant impact pressure, which can easily damage the inner wall structure and even cause ship vibration and noise problems, thus affecting the stable operation of equipment and the comfort and safety of the crew. However, existing methods typically involve reinforcing structures or simply attaching damping materials to the inner wall of the moon pool, which cannot effectively dissipate the energy generated by the fluid sloshing within the moon pool, resulting in poor energy dissipation and low safety, stability, and reliability. Summary of the Invention
[0003] The purpose of this application is to provide an energy dissipation device, a moon pool, and a vessel that effectively dissipates the energy generated by fluid sloshing within the moon pool, suppresses the amplitude and impact force of fluid sloshing, reduces equipment vibration and noise, and improves equipment safety, stability, and security.
[0004] To solve at least one of the above-mentioned technical problems, this application adopts the following technical solution:
[0005] According to a first aspect of this application, an energy dissipation device is provided for installation on the inner wall of a moon pool of a ship, comprising: a buffer plate, disposed vertically and parallel to the inner wall of the moon pool; a perforated plate, disposed on the side of the buffer plate opposite to the inner wall of the moon pool and parallel to the buffer plate, the perforated plate having a plurality of through holes for fluid passage, each through hole penetrating the perforated plate in a direction perpendicular to the buffer plate; and a flow disturbance component, disposed on the side of the perforated plate opposite to the buffer plate, for guiding and dispersing sloshing fluid in the moon pool, the perforated plate for dissipating energy from the dispersed fluid, and the buffer plate for dissipating energy from the fluid passing through the perforated plate.
[0006] In one possible implementation of the first aspect above, the energy dissipation device of this application further includes: a housing, a buffer plate, a perforated plate and a turbulence evacuation assembly disposed inside the housing, the housing being disposed on the inner wall of the moon pool, and an opening being provided on the side of the housing facing away from the inner wall of the moon pool.
[0007] In one possible implementation of the first aspect described above, the buffer plate, the perforated plate, and the turbulence assembly are disposed inside the housing through the opening; the bottom and top of the housing are respectively provided with first overflow holes; the housing is detachably connected to the inner wall of the moon pool.
[0008] In one possible implementation of the first aspect above, multiple through holes are arranged to form a honeycomb structure in a porous plate. The radial cross-section of each through hole is hexagonal. A second overflow hole is provided on the lower and upper surfaces of each through hole. Each second overflow hole is connected to the corresponding through hole below or above it.
[0009] In one possible implementation of the first aspect above, the turbulence-disrupting component includes: a plurality of turbulence-disrupting plates arranged vertically and spaced apart sequentially along the width direction of the inner wall of the moon pool; wherein each turbulence-disrupting plate is parallel to each other and is connected to a perforated plate respectively.
[0010] In one possible implementation of the first aspect described above, each spoiler is inclined relative to the perforated plate; the angle between each spoiler and the perforated plate is 45° to 60°.
[0011] In one possible implementation of the first aspect mentioned above, each spoiler is perpendicular to the perforated plate, and the spoiler is provided with a vertically extending spoiler structure, which is serrated or wavy.
[0012] In one possible implementation of the first aspect described above, each spoiler is provided with a first connecting part for connecting with a perforated plate. The length direction of the first connecting part is consistent with the axial direction of the through hole. The first connecting part is used to insert into the corresponding through hole. The first connecting parts are multiple parts arranged at intervals in the vertical direction.
[0013] In one possible implementation of the first aspect described above, the aerodynamic component further includes a support member for connecting to each aerodynamic plate; the support member is a horizontal support plate, which is arranged horizontally and its length direction is consistent with the width direction of the inner wall of the moon pool; the horizontal support plate is located in the middle of each aerodynamic plate and is connected to each aerodynamic plate respectively; the horizontal support plate is provided with a second connecting part for connecting to a perforated plate, the second connecting part is used to insert into a corresponding through hole, the length direction of the second connecting part is consistent with the axial direction of the through hole, and a third overflow hole is provided on the second connecting part through the vertical direction; the second connecting parts are multiple of them arranged at intervals along the length direction of the horizontal support plate.
[0014] In one possible implementation of the first aspect above, the buffer plate is made of wood, rubber, or composite material; the perforated plate is made of metal, which is made of steel, stainless steel, or aluminum alloy.
[0015] According to a second aspect of this application, a moon pool is provided, including the energy dissipation device of the first aspect of this application.
[0016] According to a third aspect of this application, a vessel is provided that includes the moon pool of the second aspect of this application.
[0017] The above-mentioned technical solution of this application has at least one of the following beneficial effects:
[0018] According to the energy dissipation device of this application, the energy dissipation device is installed on the inner wall of the moon pool and includes a buffer plate, a perforated plate, and a flow-dispersing component arranged sequentially. When the movement of a ship in waves causes fluid sloshing in the moon pool, the fluid first impacts the flow-dispersing component, which disperses the fluid flow into multiple turbulent flows with chaotic directions. These turbulent flows, along with some water that directly impacts the perforated plate, enter the various through-holes of the perforated plate. The kinetic energy of the fluid is rapidly dissipated through significant surface friction. The water that passes through the perforated plate impacts the buffer plate, which further absorbs and dissipates the kinetic energy of the fluid. Thus, the energy dissipation device of this application can effectively dissipate the energy generated by fluid sloshing in the moon pool, suppress the amplitude and impact force of fluid sloshing, reduce equipment vibration and noise, improve equipment safety and stability, has high energy dissipation efficiency, and extends the service life of the equipment.
[0019] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by conventional means in the field. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of an energy dissipation device according to one embodiment of this application;
[0022] Figure 2 This is an exploded view of an energy dissipation device according to one embodiment of this application;
[0023] Figure 3 This is a three-dimensional structural diagram of an energy dissipation device according to one embodiment of this application after removing the outer casing;
[0024] Figure 4 A top view of an energy dissipation device according to one embodiment of this application after removing the outer casing;
[0025] Figure 5 This is a side view of a turbulence component according to one embodiment of this application;
[0026] Figure 6 This is a top view of a turbulence-disrupting component according to one embodiment of this application;
[0027] Figure 7This is a schematic diagram of the structure of the wave-shaped spoiler and the outer shell according to one embodiment of this application;
[0028] Figure 8 This is a schematic diagram of the serrated spoiler and the outer shell according to one embodiment of this application;
[0029] Figure 9 This is a schematic diagram of the structure of an energy dissipation device installed on the inner wall of a moon pool, according to one embodiment of this application.
[0030] Figure 10 This is a top view of a ship according to one embodiment of this application.
[0031] Explanation of the labels in the attached drawings:
[0032] Moon Pool 1;
[0033] Energy dissipation device 10;
[0034] Buffer plate 100;
[0035] Perforated plate 200; Through hole 201; Second overflow through hole 202;
[0036] spoiler assembly 300; spoiler plate 310; spoiler structure 311; first connecting part 312; support member 320; cross brace plate 321; third overflow hole 322; second connecting part 323;
[0037] Casing 400; First overflow port 401;
[0038] Hull 2. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0040] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.
[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral molding; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] refer to Figure 9 , Figure 10 The diagram schematically illustrates an energy dissipation device 10 provided according to an embodiment of this application. The energy dissipation device 10 is used to install on the inner wall of the moon pool 1 of a ship, which vertically penetrates the hull 2 of the ship. It should be noted that the horizontal cross-section of the moon pool 1 can be rectangular. The four inner walls of the moon pool 1 are arranged vertically (in the direction of the ship's depth). An energy dissipation device 10 can be installed on each inner wall of the moon pool 1. The width direction of the inner wall of the moon pool 1 is parallel to the horizontal direction of that inner wall, and the width of the energy dissipation device 10 can be approximately equal to the width of the inner wall of the moon pool 1.
[0043] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the energy dissipation device 10 of this application may include: a buffer plate 100, a perforated plate 200, and a turbulence component 300.
[0044] The buffer plate 100 is vertically aligned and parallel to the inner wall of the moon pool 1. A perforated plate 200 is disposed on the side of the buffer plate 100 facing away from the inner wall of the moon pool 1 and parallel to the buffer plate 100. A flow-dispersing component 300 is disposed on the side of the perforated plate 200 facing away from the buffer plate 100. The perforated plate 200 has multiple through-holes 201 for fluid passage, each through-hole 201 penetrating the perforated plate 200 in a direction perpendicular to the buffer plate 100. The flow-dispersing component 300 guides and disperses the sloshing fluid within the moon pool 1, the perforated plate 200 dissipates energy from the dispersed fluid, and the buffer plate 100 dissipates energy from the fluid passing through the perforated plate 200. The widths of the buffer plate 100 and the perforated plate 200 can be slightly smaller than the width of the inner wall of the moon pool 1.
[0045] When the ship's movement in the waves causes the fluid (i.e., seawater or water body) in Moon Pool 1 to slosh, the fluid impacts the inner wall of Moon Pool 1. The fluid first impacts the turbulence-inducing component 300, which disperses the large-scale, regular vortex-induced oscillating fluid flow into small-scale, disordered turbulence, i.e., disperses it into multiple streams of turbulent flow with chaotic directions. Then, these turbulent flows, along with some of the fluid that directly impacts the perforated plate 200, enter the various through-holes 201 of the perforated plate 200. The fluid generates enormous friction with each through-hole 201, causing the fluid's kinetic energy to be converted into heat energy and rapidly dissipated. The fluid passing through the perforated plate 200 continues to impact the buffer plate 100, which further absorbs and dissipates the fluid's kinetic energy, thereby efficiently dissipating the kinetic energy generated by the sloshing of the fluid in Moon Pool 1.
[0046] Therefore, the energy dissipation device 10 of this application can perform triple energy dissipation through guiding and dispersing, fluid friction and buffer absorption of the impact of the sloshing fluid in the moon pool 1. It achieves rapid energy dissipation within the fluid, effectively dissipating the energy generated by the sloshing of the fluid in the moon pool 1, suppressing the amplitude and impact force of the fluid sloshing, reducing equipment vibration and noise, protecting equipment and personnel safety, improving the safety, stability and security of the equipment, and having high energy dissipation efficiency. Even in severe sea conditions, it can ensure that the fluid movement in the moon pool 1 is effectively suppressed, protecting the structure of the hull 2 and the operating equipment in the moon pool 1, and extending the service life of the equipment.
[0047] In some embodiments, reference Figure 1 , Figure 2As shown, the energy dissipation device 10 of this application also includes a housing 400, a buffer plate 100, a perforated plate 200, and a flow-dispersing component 300 disposed within the housing 400. The housing 400 is used to mount on the inner wall of the moon pool 1, and an opening is provided on the side of the housing 400 facing away from the inner wall of the moon pool 1. For example, the housing 400 can be rectangular, and the inner cavity and opening of the housing 400, the perforated plate 200, and the buffer plate 100 can all be rectangular. The four sides of the perforated plate 200 and the buffer plate 100 can respectively fit against the four inner walls of the inner cavity of the housing 400. Thus, the housing 400 integrates the buffer plate 100, the perforated plate 200, and the flow-dispersing component 300 into a single unit, making the energy dissipation device 10 modular, with higher safety and reliability, and more convenient and faster operation.
[0048] In one embodiment, reference Figure 1 , Figure 2 As shown, the outer shell 400 has openings on both the side facing away from the inner wall of the moon pool 1 and the side facing the moon pool 1. That is, the outer shell 400 is a frame structure surrounding the buffer plate 100, the perforated plate 200, and the flow-deflecting assembly 300. The buffer plate 100, the perforated plate 200, and the flow-deflecting assembly 300 pass through the openings and are disposed within the outer shell 400. The buffer plate 100 can directly contact the inner wall of the moon pool 1. This results in a simpler structure and a more stable buffer plate 100.
[0049] In another embodiment, the buffer plate 100, the perforated plate 200, and the baffle assembly 300 are disposed within the housing 400 through an opening. The housing 400 has an opening on the side facing away from the inner wall of the moon pool 1, and the side of the housing 400 facing the moon pool 1 is closed, for example, by a back plate. The baffle assembly 300 can be connected to the housing 400 and fix the perforated plate 200 and the buffer plate 100 within the housing 400. The baffle assembly 300 and the housing 400 can be connected by fasteners or by welding. This facilitates the assembly of the energy dissipation device 10 and the installation and disassembly of the energy dissipation device 10 as a whole on the inner wall of the moon pool 1, improving efficiency and enhancing safety and reliability.
[0050] In some embodiments, reference Figures 1-4As shown, the bottom and top of the outer casing 400 are respectively provided with first overflow holes 401. The bottom and top of the outer casing 400 can be planes extending along the width direction of the inner wall of the moon pool 1. Multiple first overflow holes 401 at the bottom and top of the outer casing 400 can be sequentially spaced along the width direction of the inner wall of the moon pool 1. The first overflow hole 401 at the bottom of the outer casing 400 can be connected one-to-one with the adjacent through hole 201 above it, and the first overflow hole 401 at the top of the outer casing 400 can be connected one-to-one with the adjacent through hole 201 below it. The first overflow hole 401 can be elliptical, waist-shaped, or other shapes. This facilitates the outflow of seawater inside the outer casing 400 through the first overflow holes 401, preventing seawater from accumulating inside the outer casing 400 and causing corrosion and other problems, thus improving the safety and reliability of the device.
[0051] In some embodiments, the outer casing 400 is detachably connected to the inner wall of the moon pool 1, for example, by using fasteners such as screws, which facilitates installation, disassembly, and maintenance, improving efficiency. Alternatively, the outer casing 400 can also be connected to the inner wall of the moon pool 1 by welding or other methods.
[0052] In some embodiments, reference Figures 1-4 As shown, multiple through holes 201 cover the porous plate 200 to form a honeycomb structure, and the radial cross-section of each through hole 201 is hexagonal. For example, each side of the hexagonal through hole 201 shares an edge with its adjacent through hole 201. This not only ensures the structural strength of the porous plate 200 but also increases the friction between the fluid and the through holes 201, improving the energy dissipation effect. It should be noted that the diameter of the through holes 201 needs to be appropriate, and the through holes 201 need to have a certain depth to ensure fluid friction energy dissipation. Furthermore, the radial cross-section of the through holes 201 can also be circular, rectangular, polygonal, or other shapes.
[0053] Optionally, refer to Figures 1-4 As shown, each through hole 201 has a second overflow hole 202 on its upper and lower surfaces, and each second overflow hole 202 is connected to the corresponding through hole 201 below or above it. For example, the first overflow hole 401 at the bottom of the housing 400 can be connected to the adjacent through hole 201 above it or the second overflow hole 202, and the first overflow hole 401 at the top of the housing 400 can be connected to the adjacent through hole 201 below it or the second overflow hole 202. Two adjacent through holes 201 are connected through the second overflow hole 202 respectively. The second overflow hole 202 can be elliptical, waist-shaped, or other shapes. This better prevents seawater from accumulating in the through holes 201 and causing corrosion and other problems, further improving the safety and reliability of the device. It should be noted that the through holes 201 around the perimeter of the perforated plate 200 can be complete regular hexagonal holes or incomplete regular hexagonal holes, such as one-third regular hexagonal holes, half-regular hexagonal holes, etc.
[0054] In some embodiments, reference Figures 1-6 As shown, the flow-dispersing assembly 300 includes multiple flow-dispersing plates 310, which are arranged vertically and spaced apart sequentially along the width of the inner wall of the moon pool 1. The flow-dispersing plates 310 are parallel to each other and are connected to the perforated plate 200. Thus, the multiple flow-dispersing plates 310 form a flow-dispersing array, ensuring the guidance and dispersion of the fluid and improving the efficiency of flow guidance and dispersion.
[0055] Optionally, refer to Figures 1-6 As shown, each baffle 310 is arranged vertically and tilted relative to the perforated plate 200, forming a louver-like structure. For example, the angle between each baffle 310 and the perforated plate 200 can be 45° to 60°, and the baffle 310 can also be a fin structure. Thus, the multiple baffles 310 form a baffle array, tilted at a certain angle relative to the perforated plate 200, thereby ensuring better fluid guidance and dispersion, and improving the efficiency of fluid guidance and dispersion.
[0056] Optionally, refer to Figure 7 , Figure 8 As shown, each baffle 310 is arranged vertically and is perpendicular to the perforated plate 200. Each baffle 310 has a vertically extending baffle structure 311. The baffle structure 311 can be serrated or wavy. Each baffle 310 can also be entirely serrated or wavy in the vertical direction. Therefore, by guiding and dispersing the fluid through the serrated or wavy structure, the wall-attachment effect and uniformity of the fluid flowing along the inner wall of the moon pool 1 can be better actively disrupted, resulting in more efficient fluid guidance and dispersion, and rapid energy dissipation within the fluid.
[0057] Optionally, the spacing between two adjacent spoilers 310 can be the same as the spacing between two adjacent ribs (lateral supports) or two adjacent longitudinal supports (longitudinal supports) on the hull 2. If the energy dissipation device 10 is installed on the inner wall of the moon pool 1, which is perpendicular to the transverse direction of the hull 2, the spacing between two adjacent spoilers 310 can be the same as the spacing between two adjacent ribs on the hull 2, and the spoilers 310 can correspond one-to-one with the ribs. If the energy dissipation device 10 is installed on the inner wall of the moon pool 1, which is perpendicular to the longitudinal direction of the hull 2, the spacing between two adjacent spoilers 310 can be the same as the spacing between two adjacent longitudinal supports on the hull 2, and the spoilers 310 can correspond one-to-one with the longitudinal supports. This results in more uniform stress distribution and a more stable and reliable structure.
[0058] Optionally, refer to Figure 5 , Figure 6As shown, each spoiler 310 is provided with a first connecting portion 312 for connecting to the perforated plate 200. The first connecting portion 312 is used to insert into the corresponding through hole 201. The length direction of the first connecting portion 312 is consistent with the axial direction of the through hole 201, and the first connecting portion 312 can be embedded in the perforated plate 200. There can be multiple first connecting portions 312 arranged sequentially at intervals along the vertical direction, and each first connecting portion 312 is inserted into the corresponding through hole 201. As a result, the connection is tighter, and the structure is more compact and stable. In addition, the spoiler 310 can also be welded to the perforated plate 200, etc.
[0059] In some embodiments, reference Figures 1-6 As shown, the spoiler assembly 300 also includes a support member 320, which is used to connect with each spoiler 310. The support member 320 can be one, two, or more, and can be connected to each spoiler 310 by welding or other means. The support member 320 can be a plurality of horizontal braces and / or a plurality of diagonal braces respectively disposed between two adjacent spoilers 310. Alternatively, the support member 320 can be a single horizontal brace 321 connected to each spoiler 310 and located in the middle of each spoiler 310. This improves the structural strength of the spoiler assembly 300, making it more stable and reliable.
[0060] Optionally, refer to Figures 1-6 As shown, the support member 320 is a horizontal support plate 321. The horizontal support plate 321 is arranged horizontally, and its length direction is consistent with the width direction of the inner wall of the moon pool 1. The horizontal support plate 321 is located in the middle of each spoiler 310 and is connected to each spoiler 310 respectively. For example, the horizontal support plate 321 may be provided with a first groove for each spoiler 310 to pass through, and the first groove corresponds one-to-one with the spoiler 310. Each spoiler 310 passes through its corresponding first groove hole and connects to the horizontal support plate 321, such as by welding. Alternatively, each spoiler 310 may be provided with a second groove for the horizontal support plate 321 to pass through, or the horizontal support plate 321 may divide each spoiler 310 into upper and lower parts. As a result, the connection is tighter and more reliable, improving the structural strength.
[0061] Optionally, refer to Figures 1-6 As shown, the cross brace 321 is provided with a second connecting portion 323 for connecting with the perforated plate 200. The second connecting portion 323 is used to insert into the corresponding through hole 201. The length direction of the second connecting portion 323 is consistent with the axial direction of the through hole 201, and the second connecting portion 323 can be embedded in the perforated plate 200. Multiple second connecting portions 323 are arranged sequentially at intervals along the length direction of the cross brace 321, and each second connecting portion 323 is inserted into the corresponding through hole 201. This results in a tighter connection and a more compact and stable structure.
[0062] Optionally, refer to Figure 6 As shown, each second connection portion 323 is provided with a third overflow hole 322 extending vertically through it. The third overflow hole 322 can be elliptical, oblong, or other shapes. This facilitates fluid passage, prevents seawater accumulation and corrosion, and improves the safety and reliability of the device.
[0063] In some embodiments, the buffer plate 100 may be made of an energy-absorbing material, such as wood, rubber, or composite material, which provides good cushioning and energy absorption. Alternatively, the buffer plate 100 may also be made of a cushioning material.
[0064] In some embodiments, the perforated plate 200 can be made of metal materials, such as steel, stainless steel, or aluminum alloy, which have high structural strength, good seawater resistance, and long service life. Alternatively, the perforated plate 200 can also be made of other high-strength materials, and the flow-deflecting component 300 can be made using materials similar to those of the perforated plate 200.
[0065] refer to Figure 9 , Figure 10 As shown, a moon pool 1 is also provided according to an embodiment of this application, including the energy dissipation device 10 of this application described above. Other structures of the moon pool 1 will not be described here.
[0066] refer to Figure 9 , Figure 10 As shown, a ship is also provided according to an embodiment of this application, including the moon pool 1 of the above application. Other structures of the ship will not be described in detail here.
[0067] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.
[0068] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of this application. In this case, all details can be replaced with equivalent elements, and materials, shapes, and sizes can also be arbitrary.
Claims
1. An energy dissipation device for installation on the inner wall of the moon pool of a ship, characterized in that, include: A buffer plate is provided vertically and parallel to the inner wall of the moon pool; A perforated plate is disposed on the side of the buffer plate opposite to the inner wall of the moon pool and parallel to the buffer plate. The perforated plate is provided with a plurality of through holes for fluid to pass through, and each of the through holes penetrates the perforated plate in a direction perpendicular to the buffer plate. A flow-dispersing component is disposed on the side of the porous plate opposite to the buffer plate, and is used to guide and disperse the sloshing fluid in the moon pool. The porous plate is used to dissipate energy from the dispersed fluid, and the buffer plate is used to dissipate energy from the fluid passing through the porous plate. The turbulence-disrupting component includes: Multiple spoilers are arranged vertically and spaced apart along the width of the inner wall of the moon pool. The various spoilers are parallel to each other and connected to the perforated plate. Each spoiler is provided with a first connecting part for connecting to the perforated plate. The first connecting part is used to insert into the corresponding through hole. The length direction of the first connecting part is consistent with the axial direction of the through hole. There are multiple first connecting parts arranged at intervals along the vertical direction.
2. The energy dissipation device according to claim 1, characterized in that, Also includes: The outer shell, the buffer plate, the porous plate and the turbulence-disrupting assembly are disposed inside the outer shell, the outer shell is used to be disposed on the inner wall of the moon pool, and the side of the outer shell facing away from the inner wall of the moon pool is provided with an opening.
3. The energy dissipation device according to claim 2, characterized in that, The buffer plate, the porous plate, and the turbulence-disrupting component are disposed inside the housing through the opening; The bottom and top of the outer casing are respectively provided with first overflow holes; The outer shell is detachably connected to the inner wall of the moon pool.
4. The energy dissipation device according to claim 1, characterized in that, Multiple through holes are distributed throughout the porous plate to form a honeycomb structure. The radial cross-section of each through hole is hexagonal. A second overflow hole is provided on the lower and upper surfaces of each through hole. Each second overflow hole is connected to the through hole below or above it.
5. The energy dissipation device according to claim 1, characterized in that, Each of the spoilers is inclined relative to the perforated plate, and the angle between each spoiler and the perforated plate is 45° to 60°.
6. The energy dissipation device according to claim 1, characterized in that, Each of the aforementioned baffles is perpendicular to the perforated plate, and the baffles are provided with a vertically extending baffle structure, which is serrated or wavy.
7. The energy dissipation device according to claim 1, characterized in that, The spoiler assembly also includes a support member for connecting to each of the spoilers; The support member is a horizontal support plate, which is arranged in a horizontal direction and its length direction is consistent with the width direction of the inner wall of the moon pool. The horizontal support plate is located in the middle of each of the baffles and is connected to each of the baffles respectively. The cross brace is provided with a second connecting part for connecting with the perforated plate. The second connecting part is used to insert into the corresponding through hole. The length direction of the second connecting part is consistent with the axial direction of the through hole. The second connecting part is provided with a third overflow hole that passes through in the vertical direction. The second connecting part consists of a plurality of parts arranged at intervals along the length direction of the cross brace.
8. The energy dissipation device according to claim 1, characterized in that, The buffer plate is made of wood, rubber, or composite materials. The perforated plate is a metal material component, which can be a steel component or an aluminum alloy component.
9. A moon pool, characterized in that, Includes the energy dissipation device according to any one of claims 1 to 8.
10. A ship, characterized in that, Includes the moon pool as described in claim 9.
Citation Information
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