An underwater cavern data center based on island layout and its construction and operation methods

Abstract

This invention discloses an underwater cavern data center based on an island layout, along with its construction and operation methods, belonging to the technical field of cavern-type data centers. The underwater cavern data center includes two parallel transport caverns located within an island, connected by several connecting caverns. Several underwater data storage caverns are located below the sides of these connecting caverns within the island, situated below the water surface of the island's surrounding waters. Each underwater data storage cavern houses a data train, and the connecting caverns contain data train traction equipment. This traction equipment passes through vertical lifting caverns at both ends of its respective connecting cavern before connecting to both ends of the data train within the underwater data storage cavern. The data compartments within the data train undergo immersion cooling within the underwater data storage caverns, improving cooling efficiency and reducing operational energy consumption.

Description

Technical Field

[0001] This invention relates to an underwater cavern data center based on an island layout and its construction and operation methods, belonging to the field of cavern data center technology. Background Technology

[0002] Cave-based data centers, protected by external mountains, possess the significant advantage of "high structural protection," effectively meeting the high security requirements of data centers and thus being gradually promoted and implemented in Guizhou and other regions. However, cave-based data centers have relatively limited advantages in "low-carbon and energy-saving" aspects, severely restricting their development. Therefore, researching and improving "low-carbon and energy-saving" features has undoubtedly become a key breakthrough direction for the sustainable development of cave-based data centers.

[0003] Chinese patent document CN119711807B discloses a cave-type data center built based on an underground river, along with its construction and operation methods. The data center includes a mountain with an underground river flowing through caves within it. Several equipment storage tunnels are located on one or both sides of the underground river within the mountain. These tunnels are connected to the caves via ramps. Each equipment storage tunnel contains equipment racks and liquid heat exchangers. A river water transport component is connected to the liquid heat exchanger, with one end of the component, away from the heat exchanger, passing through the ramp-connected tunnels and extending into the underground river. Liquid cooling is used to cool and dissipate heat from the equipment racks. This direct temperature control method significantly improves the heat dissipation and cooling effect on the IT equipment racks, while also achieving high heat exchange efficiency and reducing the data center's operating energy consumption.

[0004] However, the cooling effect of using liquid heat exchangers to cool equipment cabinets is limited, resulting in still high energy consumption for data center operation. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an underwater cavern data center based on an island layout, along with its construction and operation methods.

[0006] This invention is achieved through the following technical solution: An underwater cavern data center based on an island layout includes two parallel transport caverns located within the island, connected by several horizontal connecting caverns. Several underwater data storage caverns are located below each of the horizontal connecting caverns on the island. The transport caverns and horizontal connecting caverns are situated above the water surface of the island's waters, while the underwater data storage caverns are located below the water surface. The two ends of each horizontal connecting cavern are connected to their corresponding underwater data storage caverns below it via vertical lifting caverns. The underwater data storage caverns traverse the island and contain data trains. The transport caverns span all the underwater data storage caverns, and data warehouse lifting equipment is located directly above the vertical lifting caverns within each transport cavern. Data train traction equipment is located within each horizontal connecting cavern, and this traction equipment passes through the vertical lifting caverns at both ends of its respective horizontal connecting cavern before connecting to the two ends of the data train within the underwater data storage cavern.

[0007] The island is equipped with multiple underwater data storage caves. All the underwater data storage caves are arranged in the same direction, and adjacent underwater data storage caves are staggered in height. The distance between the underwater data storage cavern and the water surface of the island is 5 to 20 meters.

[0008] The drainage slope of the underwater data storage cavern is 0.3% to 1%, and the terrain at the lower end of the underwater data storage cavern is relatively flat compared to the upper end.

[0009] The bottom plate of the underwater data storage cavern is covered with track B, which includes two parallel steel rails on which the data train is placed. The data train includes multiple train chassis and multiple data compartments. The multiple train chassis are connected in series by couplers, and the multiple data compartments are placed one-to-one on the multiple train chassis.

[0010] The data train traction equipment includes a forward winch, an energy supply device, a reverse winch, and two steering turntables. The forward winch, energy supply device, and reverse winch are all located inside the transverse connecting cavern. The energy supply device is electrically connected to the forward and reverse winches. The two steering turntables are located at opposite ends of the underwater data storage cavern. The traction rope of the forward winch passes through the vertical lifting cavern at one end of the transverse connecting cavern, goes around one of the steering turntables, and connects to one end of the data train. The traction rope of the reverse winch passes through the vertical lifting cavern at the other end of the transverse connecting cavern, goes around the other steering turntable, and connects to the other end of the data train.

[0011] The data train traction equipment also includes rope guide and limit wheel sets. Multiple rope guide and limit wheel sets are installed in the horizontally connected tunnel, the vertically lifting tunnel, and the underwater data storage tunnel to guide and radially limit the traction rope.

[0012] The data warehouse lifting equipment includes two transverse tracks, which are installed and fixed to the arch of the transport tunnel by a suspension device. A movable suspension device is provided on both transverse tracks, and a data warehouse grasping device is provided at the execution end of the movable suspension device.

[0013] A construction method for an underwater cavern data center based on an island layout includes the following steps: Step 1: Select the terrain where the underwater cave data center is to be built, and construct a transport road along the perimeter of the island, connecting the transport road to the bottom of the cave entrance. Step 2: Construct the transport tunnel and the horizontal connecting tunnel using water-based operations, and at the same time construct water-retaining cofferdams at both ends of the underwater data storage tunnel. Step 3: Install data warehouse lifting equipment inside the transport tunnel, and then excavate the vertical lifting tunnel from top to bottom using the transport tunnel. Use the data warehouse lifting equipment to lift and transport slag, building materials, construction personnel and equipment in the vertical lifting tunnel. At the same time, use water pumps and supporting pipelines to pump out water from the vertical lifting tunnel in a timely manner. Step 4: Pump the water out of the cofferdam at the lower entrance of the underwater data storage cavern using water pumps and supporting pipelines. Then, start unidirectional excavation of the underwater data storage cavern from the lower end of the cavern. During the construction process, the water from the surrounding rock flows through the underwater data storage cavern to the cofferdam at its lower entrance, and is then pumped out to the outside of the cofferdam using water pumps and supporting pipelines. When the underwater data storage tunnel is excavated to a point 100 meters from the upper entrance, the water in the cofferdam at the upper entrance will be pumped out to prepare for the tunnel's completion. Step 5: Complete the installation and commissioning of the data train, data train traction equipment, and remaining equipment and facilities; Step 6: Fill the underwater data storage cavern and the water-retaining cofferdams at both ends of the cavern with water until the water pressure inside and outside the underwater data storage cavern is balanced. Then, remove the water-retaining cofferdams at both ends of the underwater data storage cavern.

[0014] In step two, a water-retaining cofferdam is independently constructed at the upper opening of each underwater data storage cave, and a common water-retaining cofferdam is constructed at the lower opening of all underwater data storage caves.

[0015] An operation method for an underwater cavern data center based on an island layout includes the following operation modes: Normal operating mode: The data train operates underwater in the underwater data storage cavern and uses the water in the underwater data storage cavern to cool down the data warehouse; Maintenance Mode: When a data warehouse needs maintenance, the data train is towed by the data train traction equipment and moved within the underwater data storage cavern until the data warehouse is directly below the nearest vertical lifting cavern. Then, the data warehouse lifting equipment is used to lift the data warehouse into the transport cavern. Next, the data warehouse is transported to the transport cavern for maintenance using the data warehouse lifting equipment. Alternatively, the data warehouse can be first hoisted into the transport cavern using the data warehouse lifting equipment, and then transported to a specialized location outside the transport cavern by a transport vehicle for maintenance.

[0016] The beneficial effects of this invention are as follows: 1. Because the underwater data storage cavern runs through the island and is located below the water surface of the island's surrounding waters, it is constantly filled with water. Based on this, deploying a data train within the cavern allows the water to submerge the data storage compartments, significantly improving cooling efficiency and greatly reducing the energy consumption of the cavern data center. Furthermore, the cavern's location beneath the island's waters facilitates smooth water flow, further enhancing the submersion cooling effect. Moreover, the cavern's location provides dual protection from both the mountain and the water, offering high concealment and security. This creates a new data center system that combines the structural advantages of cavern-style data centers with the low-carbon, energy-saving benefits of underwater data centers, resulting in significant technological advancements and practical benefits.

[0017] 2. The staggered arrangement of adjacent underwater data storage tunnels along their vertical axes increases the clearance between them, reducing mutual interference during excavation and improving construction efficiency. The distance from the underwater data storage tunnels to the water surface of the island is controlled between 5 and 20 meters. Setting a lower limit of 5 meters ensures effective immersion cooling of the data storage compartments; setting an upper limit of 20 meters reduces the difficulty of constructing the underwater data storage tunnels.

[0018] 3. The underwater data storage cavern is equipped with a drainage longitudinal slope to ensure that the water from the surrounding rock inside the cavern can flow naturally to the outside during the construction of the underwater data storage cavern, thereby reducing pumping costs; the drainage longitudinal slope is controlled within the range of 0.3% to 1% to avoid the slope being too small, which would not be conducive to rapid drainage, and to avoid the slope being too large, which would significantly increase the difficulty of the data train traction equipment to pull the data train upward.

[0019] 4. The underwater data storage cavern located below the water surface of the island's waters is connected to the transport cavern and the lateral connecting cavern located above the water surface of the island's waters via a vertical lifting cavern. Data train traction equipment is installed in the lateral connecting cavern to enable data train traction, ensuring flexible movement of the data warehouse within the underwater data center cavern. In conjunction with the data warehouse lifting equipment installed in the transport cavern, the data warehouse can be hoisted between the underwater data storage cavern, the vertical lifting cavern, and the transport cavern. Compared with the use of floating cranes, barges, and other equipment for underwater data warehouse salvage, it has advantages such as high hoisting efficiency and low cost, significantly reducing the difficulty of daily maintenance and repair of the underwater data warehouse. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the left-side structure of Embodiment 1 of the present invention; Figure 3 This is a partial structural diagram of the connection between the underwater data storage tunnel and the vertical lifting tunnel in Embodiment 1 of the present invention; Figure 4 This is a partial structural diagram of the connection between the underwater data storage tunnel and the vertical lifting tunnel when the data warehouse grasping device of Embodiment 1 of the present invention grasps the data warehouse on the train chassis; Figure 5 This is a partial structural diagram of the connection between the vertical lifting tunnel and the transport tunnel when the data warehouse lifting device in Embodiment 1 of the present invention transports the data warehouse directly above the transport vehicle inside the transport tunnel; Figure 6 This is a schematic diagram of the data train traction device after the rope guide limit wheel assembly is removed, according to Embodiment 1 of the present invention. Figure 7 This is a plan view of the data train traction equipment in the horizontally connecting tunnel and the vertically lifting tunnel according to Embodiment 1 of the present invention; Figure 8 This is a plan view of the transportation road, transportation tunnel, transverse connecting tunnel, and data train traction equipment according to Embodiment 1 of the present invention; Figure 9 This is a diagram showing the layout of the water-retaining cofferdam according to Embodiment 1 of the present invention; Figure 10 This is a partial structural diagram of the connection between the vertical lifting tunnel and the transportation tunnel when the data warehouse lifting device of Embodiment 2 of the present invention transports the data warehouse to the transportation tunnel.

[0021] In the diagram: 1-Underwater data storage cavern, 2-Transportation cavern, 20-Roadway, 21-Passing lane, 3-Horizontal connecting cavern, 4-Vertical lifting cavern, 5-Data train, 51-Train chassis, 52-Data warehouse, 6-Data warehouse lifting equipment, 61-Horizontal track, 62-Suspension device, 63-Mobile suspension device, 64-Data warehouse grabbing device, 7-Data train traction equipment, 71-Forward winch, 72-Energy supply equipment, 73-Reverse winch, 74-Rope guide limit wheel set, 75-Steering turntable, 76-Torture rope, 8-Island, 9-Track B, 10-Water-retaining cofferdam, 11-Transport vehicle, 12-Transport road, 13-Longitudinal track. Detailed Implementation

[0022] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0023] Example 1: like Figures 1 to 9 As shown, the underwater cave data center based on an island layout according to the present invention includes two parallel transport caves 2 located within an island 8. The two transport caves 2 are connected by several horizontally connecting caves 3. Several underwater data storage caves 1 are correspondingly located below the sides of the horizontally connecting caves 3 within the island 8. The transport caves 2 and the horizontally connecting caves 3 are located above the water surface of the water area where the island 8 is located, while the underwater data storage caves 1 are located below the water surface of the water area where the island 8 is located. The two ends of each horizontally connecting cave 3 are connected by vertical lifting tunnels. The storage tank 4 is connected to the corresponding underwater data storage cave 1 below it. The underwater data storage cave 1 runs through the island 8 and is equipped with a data train 5. The transport cave 2 spans all the underwater data storage caves 1 and is equipped with a data warehouse lifting device 6 directly above the vertical lifting cave 4. The horizontal connecting cave 3 is equipped with a data train traction device 7, which passes through the vertical lifting caves 4 at both ends of the horizontal connecting cave 3 and connects to both ends of the data train 5 in the underwater data storage cave 1.

[0024] Specifically, the data train 5 includes multiple train chassis and multiple data devices. Any two adjacent data train chassis are connected by a coupler. The multiple data devices are installed one-to-one on the multiple train chassis, and the outer casing of the data devices is sealed and waterproof.

[0025] Because the underwater data storage cavern 1 runs through island 8 and is located below the water surface of the waters surrounding island 8, it is constantly filled with water. Based on this, the data train 5 is deployed inside the underwater data storage cavern 1. The water inside the cavern 1 provides immersion cooling for the data warehouse 52 within the data train 5, significantly improving the cooling effect of the data warehouse 52 and greatly reducing the energy consumption of the cavern data center. Furthermore, the fact that the underwater data storage cavern 1 runs through island 8 also facilitates smooth water flow within it, further enhancing the immersion cooling effect of the data warehouse 52.

[0026] A pumping facility can be installed inside the underwater data storage cavern 1 to guide water flow from the upper opening to the lower opening, thereby further improving the cooling effect of the water flow on the data storage chamber 52.

[0027] One or both ends of the transport cavern 2 are connected to the outside of island 8. For example... Figure 7 and Figure 8 As shown, the bottom plate of the transport tunnel 2 is horizontally connected to the vertical lifting tunnel 4 in the part near the horizontally connected tunnel 3. The bottom plate of the transport tunnel 2 between multiple vertical lifting tunnels 4 is used as a passing lane 21; the part away from the horizontally connected tunnel 3 is used as a driving lane 20 as a vehicle passage.

[0028] The vertical lifting tunnel 4 is connected to the arch of the underwater data storage tunnel 1. The lateral structural dimensions of the vertical lifting tunnel 4 should be able to meet the requirements for serving as a transportation channel and pipeline layout for the data warehouse 52.

[0029] like Figure 2 As shown, the horizontal connecting cavern 3 is located above the underwater data storage cavern 1 in a one-to-one correspondence. In other words, the horizontal connecting cavern 3 and the vertical lifting caverns 4 at both ends are staggered to facilitate the passage of vehicles and personnel between the transport cavern 2 and the horizontal connecting cavern 3.

[0030] The island 8 is equipped with multiple underwater data storage caves 1. All the underwater data storage caves 1 are arranged in the same direction, and adjacent underwater data storage caves 1 are staggered in height. The distance between the underwater data storage cavern 1 and the water surface of the island 8 is 5 to 20 meters.

[0031] Specifically, such as Figure 1 As shown, the projections of the underwater data storage tunnel 1 and the transversely connecting tunnel 3 onto the horizontal plane are parallel and perpendicular to the projection of the transport tunnel 2 onto the horizontal plane. Figure 2As shown, the two adjacent underwater data storage caverns 1 are staggered in height, which increases the net distance between the two adjacent underwater data storage caverns 1 with the bottom plate at the same elevation, reduces mutual interference during the excavation process, and improves construction efficiency. The distance from the underwater data storage cavern 1 to the water surface of the island 8 is controlled between 5 meters and 20 meters. On the one hand, setting 5 meters as the lower limit is to ensure the immersion cooling effect of the water on the data warehouse 52; on the other hand, setting 20 meters as the upper limit is to reduce the construction difficulty of the underwater data storage cavern 1.

[0032] The drainage slope of the underwater data storage cavern 1 is 0.3% to 1%, and the terrain at the lower end of the underwater data storage cavern 1 is relatively flat compared to the terrain at the upper end.

[0033] Specifically, the underwater data storage cavern 1 is equipped with a drainage longitudinal slope to ensure that the water from the surrounding rock inside the cavern can flow naturally to the outside during the construction of the underwater data storage cavern 1, thereby reducing pumping costs; the slope of the drainage longitudinal slope is controlled within the range of 0.3% to 1% to avoid the slope being too small, which would be unfavorable for rapid drainage, and to avoid the slope being too large, which would significantly increase the difficulty of the data train traction equipment 7 pulling the data train 5 upward.

[0034] The terrain at the lower end of the underwater data storage cavern 1 is relatively flat compared to the upper end. During the unidirectional excavation of the underwater data storage cavern 1 starting from the lower end, it is convenient to use the relatively flat terrain to jointly construct a water-retaining cofferdam 10 at the lower entrance of all underwater data storage caverns 1, and it is also convenient to use the relatively flat terrain to provide favorable conditions for the layout of the construction site.

[0035] The bottom plate of the underwater data storage cavern 1 is covered with track B9, which includes two parallel steel rails. The data train 5 is placed on the two steel rails. The data train 5 includes multiple train chassis 51 and multiple data compartments 52. The multiple train chassis 51 are connected in series by couplers, and the multiple data compartments 52 are placed one-to-one on the multiple train chassis 51.

[0036] Specifically, the top of the train chassis 51 is provided with a limiting groove. After the data compartment 52 is placed inside the limiting groove, it only has the upward degree of freedom. Lifting lugs are provided on the side wall of the data compartment 52 to facilitate the reliable gripping and lifting of the data compartment 52 by the data compartment gripping device 64.

[0037] The data train traction device 7 includes a forward winch 71, an energy supply device 72, a reverse winch 73, and two steering turntables 75. The forward winch 71, the energy supply device 72, and the reverse winch 73 are all located inside the transverse connecting cavern 3. The energy supply device 72 is electrically connected to the forward winch 71 and the reverse winch 73. The two steering turntables 75 are located at opposite ends of the inner side of the underwater data storage cavern 1. The traction rope 76 of the forward winch 71 passes through the vertical lifting cavern 4 at one end of the transverse connecting cavern 3, then goes around one of the steering turntables 75 and connects to one end of the data train 5. The traction rope 76 of the reverse winch 73 passes through the vertical lifting cavern 4 at the other end of the transverse connecting cavern 3, then goes around the other steering turntable 75 and connects to the other end of the data train 5.

[0038] Specifically, the energy supply equipment 72 provides electrical power to the forward winch 71 and the reverse winch 73. The energy supply equipment 72 is a generator, or includes a battery and an inverter. The battery is electrically connected to the forward winch 71 and the reverse winch 73 through the inverter. Alternatively, an external power grid can be used to supply power to the forward winch 71 and the reverse winch 73.

[0039] The data train traction device 7 also includes a rope guide and limit wheel set 74. Multiple rope guide and limit wheel sets 74 are installed in the horizontally connected cave 3, the vertically lifting cave 4 and the underwater data storage cave 1 to guide and radially limit the traction rope 76.

[0040] Specifically, the rope guide limit wheel assembly 74 adopts the structure disclosed in the patent with announcement number CN220078443U and patent name "A Limiting and Stabilizing Traction Rope Limit Wheel Assembly for Coal Mine Transportation System", which is prior art and will not be described in detail here.

[0041] The data warehouse lifting equipment 6 includes two horizontal rails 61, which are installed and fixed to the arch of the transport tunnel 2 by a suspension device 62. A movable suspension device 63 is provided on both horizontal rails 61, and a data warehouse gripping device 64 is provided at the execution end of the movable suspension device 63.

[0042] Specifically, the transverse track 61 is the track system of the KBK crane, which is installed and fixed to the arch of the transport tunnel 2 via the suspension device 62. The movable suspension device 63 includes the traveling trolley and the lifting mechanism of the KBK crane. The traveling trolley runs within the transverse track 61, and the lifting mechanism is installed at the bottom of the traveling trolley. It is equipped with a chain electric hoist to drive the data warehouse gripping device 64 for lifting and lowering. The KBK crane is existing technology and will not be described in detail here.

[0043] The suspension device 62 can be an anchor, as long as it can securely install and fix the transverse track 61 to the arch of the transport tunnel 2 and meet the load-bearing requirements.

[0044] The data warehouse gripping device 64 can realize the functions of gripping, hoisting and releasing the sealed data warehouse 52. The data warehouse gripping device 64 can adopt the structure disclosed in the patent with announcement number CN223372554U and patent name "Quick Positioning and Gripping Device for Container Gantry Crane", which is the prior art and will not be described in detail here.

[0045] A construction method for an underwater cavern data center based on an island layout includes the following steps: Step 1: Select the terrain where the underwater cave data center is to be built, and construct a transport road 12 along the perimeter of the island 8, with the transport road 12 connected to the bottom of the entrance of the transport cave 2.

[0046] Step 2: Construct the transport tunnel 2 and the transverse connecting tunnel 3 using water-based operations, and simultaneously construct water-retaining cofferdams 10 at both ends of the underwater data storage tunnel 1.

[0047] Step 3: Install the data warehouse lifting equipment 6 inside the transport tunnel 2, and then excavate the vertical lifting tunnel 4 from top to bottom using the transport tunnel 2. Use the data warehouse lifting equipment 6 to lift and transport slag, building materials, construction personnel and equipment in the vertical lifting tunnel 4. At the same time, use water pumps and supporting pipelines to pump out the water in the vertical lifting tunnel 4 in a timely manner.

[0048] Step 4: Pump out the water from the cofferdam 10 at the lower entrance of the underwater data storage cavern 1 using water pumps and supporting pipelines. Then, start unidirectional excavation of the underwater data storage cavern 1 from the lower end. During the construction process, the water from the surrounding rock flows through the underwater data storage cavern 1 to the cofferdam 10 at its lower entrance, and is then pumped out to the outside of the cofferdam 10 using water pumps and supporting pipelines. When the underwater data storage cavern 1 is excavated to a distance of 100 meters from the upper entrance, the water inside the water-retaining cofferdam 10 at the upper entrance is pumped out to prepare for the completion of the underwater data storage cavern 1.

[0049] When the underwater data storage cavern 1 is constructed to the intersection with the vertical lifting cavern 4, the lining structure of the intersection of the two caverns should be cast as a single unit to effectively improve the reliability of the intersection lining structure. When the underwater data storage cavern 1 is excavated to the vicinity of its upper entrance, the water in the upper water-retaining cofferdam 10 of the underwater data storage cavern 1 should be pumped out in advance to prepare for the breakthrough of the underwater data storage cavern 1.

[0050] Step 5: Complete the installation and commissioning of Data Train 5, Data Train Traction Equipment 7, and the remaining equipment and facilities.

[0051] Step 6: Fill the underwater data storage cavern 1 and the water-retaining cofferdams 10 at both ends of the cavern with water until the water pressure inside and outside the underwater data storage cavern 1 is balanced. Then remove the water-retaining cofferdams 10 at both ends of the underwater data storage cavern 1.

[0052] In step two, a water-retaining cofferdam 10 is independently constructed at the upper opening of each underwater data storage cave 1, and a water-retaining cofferdam 10 is jointly constructed at the lower opening of all underwater data storage cave 1.

[0053] Specifically, such as Figure 9 As shown, the water-retaining cofferdam 10 at the upper entrance of the underwater data storage cavern 1 only needs to retain water during the construction of the upper entrance section of the underwater data storage cavern 1. Therefore, a separate water-retaining cofferdam 10 (small cofferdam) is constructed at the upper entrance of each underwater data storage cavern 1. In addition to retaining water, the water-retaining cofferdam 10 at the upper entrance of the underwater data storage cavern 1 also needs to provide working space, equipment and excavated soil hoisting space for the construction of the underwater data storage cavern 1, and facilitate the pumping out of the water in the water-retaining cofferdam 10. Therefore, a single water-retaining cofferdam 10 (large cofferdam) is constructed at the lower entrance of all underwater data storage caverns 1.

[0054] During the construction of the underwater data storage cavern 1, the entrance of the underwater data storage cavern 1 is separated from the waters where the island 8 is located by the water-retaining cofferdam 10, which creates favorable conditions for the construction of the underwater data storage cavern 1. Therefore, the water-retaining cofferdam 10 should have sufficient strength, rigidity and reliable sealing.

[0055] An operation method for an underwater cavern data center based on an island layout includes the following operation modes: Normal operating mode: Data train 5 operates underwater in underwater data storage cavern 1 and uses the water in underwater data storage cavern 1 to cool down data warehouse 52; Maintenance mode: When a data warehouse 52 needs to be maintained, the data train 5 is moved within the underwater data storage cavern 1 by the data train traction device 7 until the data warehouse 52 is directly below the nearest vertical lifting cavern 4. Then, the data warehouse lifting device 6 is used to lift the data warehouse 52 into the transport cavern 2. Next, the data warehouse 52 is transported into the transport cavern 2 for maintenance by the data warehouse lifting device 6. Alternatively, the data warehouse 52 can be hoisted into the transport cavern 2 by the data warehouse lifting device 6 first, and then transported to a specialized location outside the transport cavern 2 by the transport vehicle 11 for maintenance.

[0056] When a data warehouse 52 needs maintenance, the forward winch 71 and the reverse winch 73 operate synchronously. The forward winch 71 winds up the traction rope 76, and the reverse winch 73 releases the traction rope 76, pulling the data train 5 towards the upper part of the underwater data storage tunnel 1. When the data warehouse 52 to be maintained moves to the area directly below the nearest vertical lifting tunnel 4, the forward winch 71 and the reverse winch 73 shut down. Simultaneously, the movable suspension device 63 moves along the transverse track 61 to a position aligned with the vertical lifting tunnel 4. Then, the movable suspension device 63 lowers the data warehouse grabbing device 64 to the data warehouse 52 to be maintained. The data warehouse grabbing device 64 then grabs the data warehouse 52. Next, the movable suspension device 63 lifts the data warehouse grabbing device 64 and the data warehouse 52 to be maintained together into the transport tunnel 2.

[0057] For simple maintenance of data warehouse 52, it can be placed on passing lane 21 for inspection. When a comprehensive overhaul of data warehouse 52 is required, it is transported by transport vehicle 11 to a specialized location outside transport cavern 2 for inspection. This specialized location is located on island 8. Alternatively, a ship can be used in conjunction with transport vehicle 11 to transport data warehouse 52 to other specialized locations for inspection.

[0058] like Figure 1 As shown, the train chassis 51 can be numbered. The left vertical lifting tunnel 4 serves as the transport channel for the data warehouse 52 on the front half of the train chassis 51 of the data train 5, and the right vertical lifting tunnel 4 serves as the transport channel for the data warehouse 52 on the rear half of the train chassis 51 of the data train 5. By using the two vertical lifting tunnels 4 as corresponding transport channels for the data warehouses 52 on the front and rear halves of the train chassis 51 of the data train 5, it is ensured that each train chassis 51 can travel directly under the vertical lifting tunnel 4 without the data train 5 leaving the underwater data storage tunnel 1.

[0059] Example 2: The difference between Example 2 and Example 1 is as follows: Figure 10 In Embodiment 2, two longitudinal tracks 13 arranged along the longitudinal direction of the transport tunnel 2 are installed and fixed in the arch of the transport tunnel 2 by means of a suspension device 62. Two transverse tracks 61 in the data warehouse lifting equipment 6 are arranged perpendicularly to the two longitudinal tracks 13 and are connected to the two longitudinal tracks 13 by a traveling trolley.

[0060] After the data warehouse 52 is hoisted into the transport cavern 2 by the data warehouse lifting equipment 6, when a comprehensive overhaul of the data warehouse 52 is required, the data warehouse lifting equipment 6 moves along the two longitudinal tracks 13 to hoist the data warehouse 52 to a specialized site built on the island 8 outside the transport cavern 2 for overhaul, instead of transporting the data warehouse 52 to the specialized site outside the transport cavern 2 by the transport vehicle 11.

Claims

1. An underwater vault data center based on island arrangement, characterized by: The system includes two parallel transport tunnels (2) located within the island (8), which are connected by several transverse connecting tunnels (3). Several underwater data storage tunnels (1) are located below each of the transverse connecting tunnels (3) within the island (8). The transport tunnels (2) and transverse connecting tunnels (3) are situated above the water surface of the island (8), while the underwater data storage tunnels (1) are situated below the water surface of the island (8). The two ends of each transverse connecting tunnel (3) are connected to their corresponding underwater data storage tunnels below them via vertical lifting tunnels (4). The underwater data storage cave (1) is connected to the island (8), and the underwater data storage cave (1) is equipped with a data train (5). The transport cave (2) spans all the underwater data storage caves (1), and the transport cave (2) is equipped with a data warehouse lifting device (6) directly above the vertical lifting cave (4). The horizontal connecting cave (3) is equipped with a data train traction device (7), and the data train traction device (7) passes through the vertical lifting caves (4) at both ends of the horizontal connecting cave (3) and connects to both ends of the data train (5) in the underwater data storage cave (1).

2. The underwater cave data center based on island arrangement as claimed in claim 1, wherein: The island (8) is equipped with multiple underwater data storage caves (1). All the underwater data storage caves (1) are arranged in the same direction, and two adjacent underwater data storage caves (1) are arranged at different heights. The distance between the underwater data storage caves (1) and the water surface of the island (8) is 5 meters to 20 meters.

3. The underwater cave data center based on island arrangement as claimed in claim 1, wherein: The drainage slope of the underwater data storage cavern (1) is 0.3% to 1%, and the terrain at the lower end of the underwater data storage cavern (1) is relatively flat compared to the terrain at the upper end.

4. The underwater cave data center based on island arrangement as claimed in claim 1, wherein: The underwater data storage cavern (1) has a track B (9) laid on its bottom plate. The track B (9) includes two parallel steel rails. The data train (5) is placed on the two steel rails. The data train (5) includes multiple train chassis (51) and multiple data compartments (52). The multiple train chassis (51) are connected in series by a coupler. The multiple data compartments (52) are placed on the multiple train chassis (51) one by one.

5. The island-based underwater cave data center of claim 1, wherein: The data train traction device (7) includes a forward winch (71), an energy supply device (72), a reverse winch (73), and two steering turntables (75). The forward winch (71), the energy supply device (72), and the reverse winch (73) are all located inside the transverse connecting cavern (3). The energy supply device (72) is electrically connected to the forward winch (71) and the reverse winch (73). The two steering turntables (75) are located at opposite ends of the underwater data storage cavern (1). The traction rope (76) of the forward winch (71) passes through the vertical lifting cavern (4) at one end of the transverse connecting cavern (3), then goes around one of the steering turntables (75) and connects to one end of the data train (5). The traction rope (76) of the reverse winch (73) passes through the vertical lifting cavern (4) at the other end of the transverse connecting cavern (3), then goes around the other steering turntable (75) and connects to the other end of the data train (5).

6. The underwater cave data center based on island arrangement as claimed in claim 5, wherein: The data train traction equipment (7) also includes a rope guide and limit wheel set (74). Multiple rope guide and limit wheel sets (74) are installed in the horizontally connected cave (3), the vertical lifting cave (4) and the underwater data storage cave (1) to guide and radially limit the traction rope (76).

7. The island-based underwater cave data center of claim 1, wherein: The data warehouse lifting equipment (6) includes two horizontal rails (61). The two horizontal rails (61) are installed and fixed on the arch of the transport cave (2) by a suspension device (62). A movable suspension device (63) is provided on both horizontal rails (61). A data warehouse grabbing device (64) is provided at the execution end of the movable suspension device (63).

8. A method of construction of an underwater cave data center based on island arrangement as claimed in any one of claims 1 to 7, characterized in that: Includes the following steps: Step 1: Select the terrain where the underwater cave data center is to be built, and construct a transport road (12) around the perimeter of the island (8), with the transport road (12) connected to the bottom of the cave entrance of the transport cave (2); Step 2: Construct a transport tunnel (2) and a transverse connecting tunnel (3) using water-based operations, and at the same time construct water-retaining cofferdams (10) at both ends of the underwater data storage tunnel (1). Step 3: Install the data warehouse lifting equipment (6) inside the transport tunnel (2), and then excavate the vertical lifting tunnel (4) from top to bottom using the transport tunnel (2). Use the data warehouse lifting equipment (6) to carry out slag removal, building material lifting, construction personnel and equipment lifting in the vertical lifting tunnel (4). At the same time, use water pumps and supporting pipelines to pump out the water in the vertical lifting tunnel (4) in a timely manner. Step 4: Pump the water out of the cofferdam (10) at the lower entrance of the underwater data storage cavern (1) using a water pump and supporting pipeline. Then, start the unidirectional excavation of the underwater data storage cavern (1) from the lower end of the underwater data storage cavern (1). During the construction process, the water from the surrounding rock flows along the underwater data storage cavern (1) to the cofferdam (10) at its lower entrance, and then pumps it out to the outside of the cofferdam (10) using a water pump and supporting pipeline. When the underwater data storage cavern (1) is excavated to a distance of 100 meters from the upper opening, the water in the water-blocking cofferdam (10) at the upper opening is pumped out to prepare for the underwater data storage cavern (1) to be connected. Step 5: Complete the installation and commissioning of the data train (5), the data train traction equipment (7), and the remaining equipment and facilities; Step 6: Fill the underwater data storage cavern (1) and the water-retaining cofferdams (10) at both ends of the cavern with water until the water pressure inside and outside the underwater data storage cavern (1) is balanced. Then remove the water-retaining cofferdams (10) at both ends of the underwater data storage cavern (1).

9. The construction method of an underwater cave data center based on island arrangement according to claim 8, characterized in that: In step two, a water-blocking cofferdam (10) is independently constructed at the upper opening of each underwater data storage cave (1), and a water-blocking cofferdam (10) is jointly constructed at the lower opening of all underwater data storage caves (1).

10. A method of operating an island-based underwater cave data center as claimed in claim 4, characterized by: Including the following operating modes: Normal working mode: The data train (5) performs underwater work in the underwater data storage cave (1) and uses the water in the underwater data storage cave (1) to cool down the data warehouse (52); Maintenance mode: When a data warehouse (52) needs to be maintained, the data train (5) is moved in the underwater data storage cave (1) by the data train traction equipment (7) until the data warehouse (52) is moved directly below the nearest vertical lifting cave (4). Then, the data warehouse (52) is lifted into the transport cave (2) by the data warehouse lifting equipment (6). Next, the data warehouse (52) is hoisted into the transport cave (2) by the data warehouse lifting equipment (6) for maintenance. Alternatively, the data warehouse (52) can be hoisted into the transport cave (2) by the data warehouse lifting equipment (6) first, and then transported to a professional site outside the transport cave (2) by the transport vehicle (11) for maintenance.

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