A breakwater system for a combined subsea data center

Abstract

The application discloses a breakwater system for combined seabed data center, which comprises a cellular protection layer, an energy dissipation cavity layer, a support wall layer and a flow guide adjusting mechanism, the cellular protection layer, the energy dissipation cavity layer, the support wall layer and the combined seabed data center are sequentially arranged along the direction of water flow and waves, the flow guide adjusting mechanism is installed on the support wall layer, the cellular protection layer, the energy dissipation cavity layer and the support wall layer are communicated with each other, the flow guide adjusting mechanism is used for adjusting the flow area of water flow flowing to the combined seabed data center, so as to adjust the flow velocity of the water flow, and the cellular protection layer and the energy dissipation cavity layer are used for weakening the vibration energy in waves and reducing the influence of the flow velocity of the water flow. The application realizes the wave dissipation and heat dissipation of the combined seabed data center, and can adjust the wave dissipation efficiency according to the sea conditions.

Description

Technical Field

[0001] This invention relates to the field of submarine infrastructure technology, specifically a breakwater system for a combined submarine data center. Background Technology

[0002] A modular subsea data center is a novel type of subsea data center that combines an underwater corridor with a data container. Located on the seabed, this data center is subject to wave impacts, and the data container within the modular subsea center requires heat dissipation. To withstand wave impacts, existing technologies typically employ a wall-like foundation structure made of concrete or rubble. While this foundation structure can withstand wave impacts, it significantly interferes with the natural flow of seawater. Furthermore, the data container's heat dissipation relies primarily on heat exchange through underwater currents, thus impacting the data center's cooling efficiency. This makes traditional foundation structures unsuitable for wave mitigation in modular subsea data centers.

[0003] In addition, generally speaking, the higher the water flow velocity, the better the heat dissipation effect of the data container. However, excessive water flow may threaten the long-term stability of the modular subsea data center. It is necessary to balance the heat dissipation effect brought by the water flow velocity with the stability of the modular data center.

[0004] Furthermore, the wave dissipation efficiency achieved by existing basic structures for resisting ocean waves is often fixed and cannot be adjusted according to different sea conditions.

[0005] In summary, existing technologies lack suitable basic structures that can dissipate heat and resist wave energy, and also lack the ability to adjust wave dissipation efficiency according to different sea conditions. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a breakwater system for a combined submarine data center, which can solve the problems described in the background art.

[0007] The technical solution to achieve the objective of this invention is as follows: a breakwater system for a modular subsea data center, comprising a honeycomb protective layer, an energy-dissipating cavity layer, a supporting wall layer, and a flow-guiding and regulating mechanism. The honeycomb protective layer, energy-dissipating cavity layer, supporting wall layer, and the modular subsea data center are sequentially arranged along the water flow and wave direction. The flow-guiding and regulating mechanism is installed in the supporting wall layer. The honeycomb protective layer, energy-dissipating cavity layer, and supporting wall layer are interconnected. The flow control mechanism is used to adjust the flow area of ​​water flowing towards the combined subsea data center, thereby regulating the flow velocity. The honeycomb protective layer and the energy-dissipating cavity layer are used to weaken the vibrational energy in the waves and reduce the impact of water flow velocity.

[0008] Furthermore, the lower outermost end of the honeycomb protective layer is provided with an upward-sloping ramp, which is used to guide the water flow upward to reduce the erosion of the breakwater by the water flow.

[0009] Furthermore, a groove is excavated on the supporting wall layer, and the flow guiding and adjusting mechanism is installed in the groove, which is connected to the energy dissipation cavity layer.

[0010] Furthermore, the porosity of the honeycomb structure in the honeycomb protective layer is controlled at 30%-40%, the pore size of the honeycomb structure is set at 20-50 cm, and the pore size of the honeycomb structure decreases gradually along the water flow direction.

[0011] Furthermore, the energy dissipation cavity is filled with a porous basalt fiber composite material, and the pore density of the porous basalt fiber composite material decreases gradually from 60% to 30% along the water flow direction. A damper is also installed in the energy dissipation cavity layer to absorb high-frequency vibrations.

[0012] Furthermore, it also includes a group of energy dissipation and power generation piles, which are located on the side of the combined submarine data center away from the supporting wall layer and at the drop-off point.

[0013] Furthermore, the energy dissipation and power generation pile group includes a vibration power generation mechanism, which is used to generate electricity using the energy generated by the cascading water to power the data cabin.

[0014] Furthermore, the energy dissipation and power generation pile group also includes pile poles, on which the vibration power generation mechanism is installed. The pile poles are equipped with spiral guide channels, which are used to guide water flow to the vibration power generation mechanism and convert horizontal eddies into vertical vibrations. The spiral guide channels are located above the vibration power generation mechanism, and the lower end of the pile poles is equipped with a pointed pole head.

[0015] Furthermore, the flow guiding and adjusting mechanism includes an upper flow guide plate, a lower flow guide plate, and a hydraulic drive device. The upper and lower flow guide plates are respectively installed at the upper and lower ends of the groove, and are spaced apart. The upper and lower flow guide plates are funnel-shaped, with the openings aligned with the data cabin. The upper guide vane is embedded in a bearing seat pre-placed within the energy dissipation cavity layer via a rotating shaft, allowing the upper guide vane to rotate relative to the energy dissipation cavity layer. The hydraulic drive unit is connected to the upper guide plate. The hydraulic drive unit is used to drive the upper guide plate to rotate, so as to adjust the opening size between the upper guide plate and the lower guide plate, thereby adjusting the water flow velocity and the water flow area.

[0016] Furthermore, the upstream surfaces of the upper and / or lower guide vanes are engraved with femtosecond lasers to form several parallel and spaced grooves on the upstream surfaces. These grooves are used to reduce water flow friction resistance, suppress boundary layer separation, and delay the occurrence of turbulence.

[0017] The beneficial effects of this invention are as follows: This invention effectively achieves wave dissipation and heat dissipation for modular subsea data centers, and can adjust the wave dissipation efficiency according to sea conditions. More specifically, it includes the following beneficial effects: (1) Weaken wave energy while minimizing the impact on flow velocity. The breakwater is equipped with a three-stage wave-dissipating layer. The wave energy is reduced by the honeycomb protective layer and the energy-dissipating cavity layer, while ensuring the normal flow of water and heat dissipation of the data cabin.

[0018] (2) This makes the heat dissipation and protection of the seabed data center more reliable. By adjusting and controlling the deflector, the Venturi effect is utilized to shrink the water delivery channel in low sea states, accelerate the water flow velocity, and enhance heat dissipation; in high sea states, the water delivery channel is extended to reduce the flow velocity and reduce the direct scouring effect of the water flow on the data container.

[0019] (3) Improve the efficiency of ocean energy utilization. By deploying a ring-shaped energy dissipation pile group on the back side of the combined subsea data center, the energy of the ocean current can be converted into green electricity that can be used by the combined subsea data center while reducing the scouring of the seabed by the cascading action.

[0020] (4) Makes underwater structure protection and equipment replacement more convenient. By using multiple sensors to analyze the stress on the underwater structure and the inspection results of the underwater robot, the underwater structure can be precisely coated with protective coatings and the equipment structure can be replaced. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A cross-sectional view of line A-A'; Figure 3 This is a schematic diagram of the vibration power generation mechanism; Figure 4 This is a schematic diagram showing the connection between the hydraulic drive unit and the upper guide plate. In the diagram, 1-honeycomb protective layer, 2-energy dissipation cavity layer, 3-supporting wall layer, 4-hydraulic drive device, 5-upper guide plate, 6-heat dissipation vent, 7-data cabin, 8-inspection door, 9-submarine corridor, 10-corridor platform, 11-energy dissipation and power generation pile group, 12-vibration power generation mechanism, 121-spiral guide channel, 122-pile rod, 123-piezoelectric power generation device, 124-pole head, 13-first foundation, 14-lower guide plate, 15-second foundation, 16-rotating shaft. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4 As shown, a breakwater system for a modular subsea data center includes a honeycomb protective layer 1, an energy-dissipating cavity layer 2, a supporting wall layer 3, and a flow-guiding and regulating mechanism. The honeycomb protective layer 1, energy-dissipating cavity layer 2, supporting wall layer 3, and the modular subsea data center are arranged sequentially along the direction of water flow and waves. The flow-guiding and regulating mechanism is installed on the supporting wall layer 3. The honeycomb protective layer 1, energy-dissipating cavity layer 2, and supporting wall layer 3 are interconnected, allowing water to flow sequentially through them. Specifically, seawater from the energy-dissipating cavity layer 2 can flow through the supporting wall and thus through the supporting wall layer 3.

[0023] The flow-guiding and regulating mechanism is used to adjust the flow area of ​​water passing through the groove and flowing towards the modular subsea data center, thereby regulating the flow velocity. This achieves accelerated water flow and enhanced heat dissipation in low sea states, and dispersed water flow velocity in high sea states, reducing the direct impact of the water flow on the data container 7 of the modular subsea data center.

[0024] The honeycomb protective layer 1 and the energy-dissipating cavity layer 2 are used to weaken the vibrational energy in the waves and minimize the impact of water flow velocity. The honeycomb protective layer 1 and the energy-dissipating cavity layer 2 reduce the vibrational energy generated by the waves moving towards the breakwater by breaking them up, and transform the turbulent flow acting on the breakwater into a laminar flow state, thus minimizing the impact on water flow velocity.

[0025] Among them, the honeycomb protective layer 1 plays the role of the first layer of energy dissipation, and the energy dissipation cavity layer 2 plays the role of the second layer of energy dissipation.

[0026] For example, the outermost side of the honeycomb protective layer 1 (i.e., the side furthest from the energy dissipation cavity layer 2) is the flow-facing side, directly contacting the waves in the sea. The lower end of the outermost side of the honeycomb protective layer 1 is provided with an upwardly sloping slope at a certain angle, which serves to guide the water flow upward to reduce the scouring of the second foundation 15 of the breakwater by the water flow.

[0027] For example, the modular subsea data center includes a data container 7, an underwater corridor 9, a corridor platform 10, and a first foundation 13. The first foundation 13 is fixed to the target seabed and protrudes beyond it, meaning the height of the first foundation 13 exceeds a preset threshold, resulting in the top surface of the first foundation 13 being at a certain height from the surface of the target seabed. The corridor platform 10 is fixed to the first foundation 13, the underwater corridor 9 is fixed to the corridor platform 10, and the data container 7 is installed on the corridor platform 10, located on the side of the corridor platform 10 closest to the supporting wall layer 3.

[0028] The data cabin 7 is circular and is installed on the connecting corridor platform 10 via an arc-shaped support frame (not shown in the figure).

[0029] For example, the underwater corridor 9 is also equipped with an inspection door 8, which is located on the side of the underwater corridor 9 closest to the data cabin 7. Through the inspection door 8... The data cabin 7 has a heat dissipation vent 6 on one side of the supporting wall layer 3. Water flowing out from the flow guiding and regulating mechanism flows into the heat dissipation vent 6, thereby achieving heat dissipation for the data cabin 7.

[0030] Understandably, the first foundation 13 can be formed by excavating and leveling a trench on the seabed of the target seabed, laying gravel on the leveled trench, and then pouring concrete on the gravel-lined trench. A hydrophobic antifouling coating can also be applied to the surface of the first foundation 13 to reduce biofouling and seawater corrosion.

[0031] Understandably, the horizontal distance and vertical height difference between the combined subsea data center and the supporting wall layer 3 and the flow diversion and adjustment mechanism can be adjusted according to the actual situation. It is only necessary to ensure that the water flowing out through the flow diversion and adjustment mechanism is sufficient to flow into the heat dissipation port 6 and dissipate heat from the data container 7.

[0032] It is understood that the breakwater system is suitable for environments where the direction of water flow and wave is consistent. When the direction of water flow and wave is inconsistent, it is not necessary to set up the honeycomb protective layer 1, the energy dissipation cavity layer 2 and the flow guiding and regulating mechanism. Existing breakwaters or only wall-type foundation structures can be used.

[0033] For example, a groove (not shown in the figure) is excavated in the supporting wall layer 3, and the flow guiding and adjusting mechanism is installed in the groove. The groove is connected to the energy dissipation cavity layer 2, so that the seawater flowing out of the energy dissipation cavity layer 2 can flow into the groove and pass through the flow guiding and adjusting mechanism in the groove, and then flow out from the flow guiding and adjusting mechanism, thereby flowing to the combined subsea data center located on one side of the supporting wall layer 3, and the flowing seawater dissipates heat from the combined subsea data center.

[0034] For example, the supporting wall layer 3 can be a structure formed by concrete casting. The honeycomb protective layer 1 can also be formed by concrete casting, and a honeycomb structure is formed during the casting process. The surface of the honeycomb protective layer 1 is also coated with a hydrophobic antifouling coating to reduce biofouling and seawater corrosion.

[0035] For example, the porosity of the honeycomb structure of the honeycomb protective layer 1 is controlled at 30%-40%, the thickness of the honeycomb protective layer 1 is set at 2-3 m, the pore size of the honeycomb structure is set at 20-50 cm, and decreases gradually along the direction of water flow.

[0036] For example, the energy dissipation cavity layer 2 is filled with a porous basalt fiber composite material, the pore density of which decreases gradually from 60% to 30% along the water flow direction. A damper is also installed within the energy dissipation cavity layer 2 to absorb high-frequency vibrations.

[0037] For example, it also includes a second base 15, on which the honeycomb protective layer 1, the energy-dissipating cavity layer 2, and the supporting wall layer 3 are all installed. The second base 15 is fixed to the target seabed and protrudes beyond it, meaning that the height of the second base 15 exceeds a preset threshold, so that the top surface of the second base 15 is at a certain height from the surface of the target seabed. The heights of the first base 13 and the second base 15 can be the same or different.

[0038] Understandably, similar to the first foundation 13, the second foundation 15 can be formed by excavating a trench on the seabed of the target seabed, leveling the trench, laying gravel on the leveled trench, and then pouring concrete on the gravel-lined trench. A hydrophobic antifouling coating can also be applied to the surface of the second foundation 15 to reduce biofouling and seawater corrosion.

[0039] For example, it also includes an energy dissipation and power generation pile group 11, which is located on the side of the combined subsea data center away from the supporting wall layer 3 and at the drop-off point, that is, the distance between the energy dissipation and power generation pile group 11 and the combined subsea data center is exactly at the drop-off point. The height of the energy dissipation and power generation pile group 11 is lower than the height of the subsea corridor 9, thereby forming a height difference and realizing power generation by utilizing the drop-off effect.

[0040] The energy dissipation and power generation pile group 11 includes a vibration power generation mechanism 12, which is a piezoelectric power generation device 123. The vibration power generation mechanism 12 is used to generate electricity using the energy generated by the cascading water to power the data cabin 7. That is, the vibration power generation mechanism 12 is electrically connected to the data cabin 7 to supply power to the data cabin 7.

[0041] The energy dissipation and power generation pile group 11 can reduce the scouring of the seabed surface on the rear side of the submarine corridor 9 (i.e. the side away from the supporting wall layer 3) caused by the drop effect.

[0042] This invention achieves a three-stage energy dissipation structure through a honeycomb protective layer 1, an energy dissipation cavity layer 2, and a supporting wall layer 3. This allows water flow and waves to dissipate energy step by step along the direction of movement, effectively resisting wave impact and simultaneously achieving heat dissipation for the data cabin 7. The energy dissipation and power generation pile group 11 provides power while also reducing erosion of the seabed.

[0043] For example, the energy dissipation and power generation pile group 11 also includes pile rods 122, on which vibration power generation mechanisms 12 are installed. A spiral guide channel 121 is provided on the pile rod 122, which guides water flow to the vibration power generation mechanism 12, converting horizontal eddies into vertical vibrations to improve the power generation efficiency of the vibration power generation mechanism 12. The spiral guide channel 121 is located above the vibration power generation mechanism 12, and the lower end of the pile rod 122 is provided with a pointed rod head 124, which facilitates the insertion and fixation of the pile rod 122 onto the seabed surface.

[0044] The energy dissipation and power generation pile group 11 can suppress eddy currents.

[0045] For example, the flow guiding and adjusting mechanism includes an upper guide plate 5, a lower guide plate 14, and a hydraulic drive device 4. The upper guide plate 5 and the lower guide plate 14 are respectively installed at the upper and lower ends of the groove, and are spaced apart. The upper guide plate 5 and the lower guide plate 14 are funnel-shaped, with the openings aligned with the data cabin 7. For example, the upper guide plate 5 can be installed at the upper end of the groove, and the lower guide plate 14 can be installed at the lower end of the groove. The lower guide plate 14 is set at an acute angle to the water flow direction, preferably at an angle of 5° to the water flow direction, to ensure that the water flows obliquely upward along the lower guide plate 14. The upper guide plate 5 is embedded in a bearing seat (not shown in the figure) pre-placed in the energy dissipation cavity layer 2 via a rotating shaft 16, so that the upper guide plate 5 can rotate relative to the energy dissipation cavity layer 2.

[0046] The hydraulic drive device 4 is embedded in the supporting wall layer 3. That is, most of the hydraulic drive device 4 is hidden inside the supporting wall layer 3. Only the output end of the hydraulic drive device 4 (usually a jack) extends out of the supporting wall layer 3 and reaches the groove, and connects with the upper guide plate 5 in the groove.

[0047] The hydraulic drive device 4 is connected to the upper guide plate 5. The hydraulic drive device 4 is used to drive the upper guide plate 5 to rotate, so that the upper guide plate 5 rotates relative to the energy dissipation cavity layer 2 through the rotating shaft 16. Simultaneously, the upper guide plate 5 rotates relative to the lower guide plate 14, so that the upper guide plate 5 moves away from or closer to the lower guide plate 14, thereby adjusting the size of the opening and closing between the upper guide plate 5 and the lower guide plate 14, that is, adjusting the degree of opening and closing, so as to adjust the water flow velocity and the water flow passage area.

[0048] It is understandable that by adjusting the opening angle between the upper guide plate 5 and the lower guide plate 14, the Venturi effect can be achieved. Thus, by utilizing the Venturi effect, the water delivery channel is contracted at low sea states to accelerate the water flow velocity and enhance heat dissipation; at high sea states, the water delivery channel is extended to reduce the flow velocity and reduce the direct scouring effect of the water flow on the data container 7.

[0049] For example, the backflow side (i.e. the side away from the water flow) of the upper guide plate 5 involves a sliding groove, on which the rotating shaft 16 is slidably mounted, so that the rotating shaft 16 can slide along the sliding groove to allow the rotating shaft 16 to slide when the angle of the upper guide plate 5 is adjusted as needed.

[0050] In actual use, in order to maximize the heat dissipation effect on the data cabin 7, the distance between the upper guide plate 5 and the lower guide plate 14 and the data cabin 7 is less than 1 m.

[0051] The deflector can be made of 304 stainless steel and coated with an anti-corrosion and anti-fouling coating.

[0052] For example, the upstream surfaces of the upper guide plate 5 and / or the lower guide plate 14 are engraved using a femtosecond laser to form a plurality of parallel and spaced grooves on the upstream surfaces. These grooves reduce water flow friction resistance, suppress boundary layer separation, and delay the occurrence of turbulence. The depth of the grooves is 200 nm, and the spacing is 500 nm.

[0053] For example, the system also includes a controller. The lower guide plate 14 is also equipped with a pressure sensor and a water flow sensor. The pressure sensor is used to measure the pressure on the lower guide plate 14 from the water flow, and the water flow sensor is used to detect the flow rate of the water flow. The data cabin 7 is equipped with a temperature sensor, which is used to measure the temperature of the data cabin 7. The pressure sensor, water flow sensor, temperature sensor and hydraulic drive device 4 are all electrically connected to the controller. The controller adjusts the opening angle of the upper guide plate 5 and the lower guide plate according to the uploaded pressure, flow rate and temperature to ensure normal heat dissipation of the data cabin 7.

[0054] Underwater anti-corrosion and antifouling coatings can crack due to dynamic loads and other factors, reducing the service life of underwater structures. Data collected by sensors installed on underwater breakwaters can be used to analyze the structural stress and deformation, and underwater robot inspections can reveal deficiencies in protection. Furthermore, underwater robots can be used for precise spraying of anti-corrosion and antifouling coatings.

[0055] The embodiments disclosed in this specification are merely illustrative of one aspect of the invention, and the scope of protection of the invention is not limited to these embodiments. Any other functionally equivalent embodiments fall within the scope of protection of the invention. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the scope of protection of the claims of this invention.

Claims

1. A breakwater system for a combined subsea data center, characterized in that, The system includes a honeycomb protective layer, an energy-dissipating cavity layer, a supporting wall layer, and a flow-guiding and regulating mechanism. These components are arranged sequentially along the water flow and wave direction, with the flow-guiding and regulating mechanism installed in the supporting wall layer. The honeycomb protective layer, energy-dissipating cavity layer, and supporting wall layer are interconnected. The flow control mechanism is used to adjust the flow area of ​​water flowing towards the combined subsea data center, thereby regulating the flow velocity. The honeycomb protective layer and the energy-dissipating cavity layer are used to weaken the vibrational energy in the waves and reduce the impact of water flow velocity.

2. The breakwater system for a combined submarine data center according to claim 1, characterized in that, The outermost lower end of the honeycomb protective layer is provided with an upward sloping slope, which is used to guide the water flow upward to reduce the erosion of the breakwater.

3. The breakwater system for a combined submarine data center according to claim 1, characterized in that, A groove is excavated in the supporting wall layer, and the flow guiding and adjusting mechanism is installed in the groove. The groove is connected to the energy dissipation cavity layer.

4. The breakwater system for a combined submarine data center according to claim 1, characterized in that, The porosity of the honeycomb structure in the honeycomb protective layer is controlled at 30%-40%, and the pore size of the honeycomb structure is set at 20-50 cm. The pore size of the honeycomb structure decreases gradually along the direction of water flow.

5. The breakwater system for a combined submarine data center according to claim 1, characterized in that, The energy dissipation cavity is filled with a porous basalt fiber composite material, and the pore density of the porous basalt fiber composite material decreases gradually from 60% to 30% along the direction of water flow. A damper is also installed in the energy dissipation cavity layer to absorb high-frequency vibrations.

6. The breakwater system for a combined submarine data center according to claim 1, characterized in that, It also includes a group of energy dissipation and power generation piles, which are located on the side of the combined submarine data center away from the supporting wall layer and at the drop-off position.

7. The breakwater system for a combined submarine data center according to claim 6, characterized in that, The energy dissipation and power generation pile group includes a vibration power generation mechanism, which is used to generate electricity by utilizing the energy generated by the cascading water to power the data cabin.

8. The breakwater system for a combined submarine data center according to claim 7, characterized in that, The energy dissipation and power generation pile group also includes pile poles, on which the vibration power generation mechanism is installed. The pile poles are equipped with spiral guide channels, which are used to guide water flow to the vibration power generation mechanism and convert horizontal eddies into vertical vibrations. The spiral guide channels are located above the vibration power generation mechanism, and the lower end of the pile poles is equipped with a pointed pole head.

9. The breakwater system for a combined submarine data center according to claim 3, characterized in that, The flow guiding and adjusting mechanism includes an upper flow guide plate, a lower flow guide plate, and a hydraulic drive device. The upper and lower flow guide plates are respectively installed at the upper and lower ends of the groove, and are spaced apart. The upper and lower flow guide plates are funnel-shaped, with the openings aligned with the data cabin. The upper guide vane is embedded in a bearing seat pre-placed within the energy dissipation cavity layer via a rotating shaft, allowing the upper guide vane to rotate relative to the energy dissipation cavity layer. The hydraulic drive unit is connected to the upper guide plate. The hydraulic drive unit is used to drive the upper guide plate to rotate, so as to adjust the opening size between the upper guide plate and the lower guide plate, thereby adjusting the water flow velocity and the water flow area.

10. The breakwater system for a combined submarine data center according to claim 9, characterized in that, The upstream surface of the upper and / or lower guide vanes is engraved with a femtosecond laser to form several parallel and spaced grooves. These grooves are used to reduce water flow friction resistance, suppress boundary layer separation, and delay the occurrence of turbulence.

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