A low-carbon cave-type data center arranged based on karst caves, its construction method and operation method

Abstract

The present invention discloses a low-carbon cavern-type data center based on cave layout and its construction method and operation method, which belongs to the technical field of cavern-type data center construction. The data center includes a mountain, an underground river is developed in the mountain, and the underground river flows through the cave in the mountain, a bridge-type support platform is provided in the cave, and the top surface elevation of the bridge-type support platform is higher than the highest water level of the underground river, and the bridge-type support platform is provided with an equipment cabinet and a liquid heat exchanger, and the liquid heat exchanger is connected to the equipment cabinet through a coolant delivery component, and a river water delivery component is connected to the liquid heat exchanger, and the end of the river water delivery component away from the liquid heat exchanger extends into the underground river. Making full use of natural caves to build cavern-type data centers reduces the excavation volume of cavern-type data centers, and can significantly reduce the construction cost of cavern-type data centers.

Description

Technical Field

[0001] The present invention relates to a low-carbon cave-based data center arranged based on a karst cave, and a construction method and an operation method thereof, belonging to the technical field of cave-based data center construction. Background Art

[0002] As a carrier of massive data, the demand for data centers has increased significantly, and its construction market will be in a rapid development stage for a long time. In order to meet the requirements of the safety performance of data centers, Guizhou region has proposed and constructed a cave-based data center integrally buried inside a mountain body. It uses the external mountain body as a shelter, and its structural protection ability is significantly better than other types of data centers, and it has become a new direction for the development of data centers. However, the mountain body outside the cave-based data center is relatively closed and cannot meet the rapid heat dissipation requirements of the IT equipment in the data center.

[0003] Chinese patent document with the publication number CN118292682A discloses a combined ecological building complex for a cave-based data center. During operation, when the computers in the transverse data center chamber are working, heat is continuously generated, causing the air to rise steadily and accumulate in the arch of the transverse data center chamber. At this time, the hot air accumulated at the top of the cross-section of the transverse data center chamber is absorbed by the ceiling suction fan and transmitted to the first heat exchanger through the hot air delivery pipe. The first heat exchanger converts the hot air into cold air through heat absorption treatment and transmits it outward through the cold air delivery pipe, and then diffuses it relatively evenly into the transverse data center chamber through the side-standing air supply fans arranged at the side wall positions of the transverse data center chamber, so as to realize the temperature control adjustment of the transverse data center chamber.

[0004] However, the longitudinal connection channels, transverse data center chambers, and zigzag ventilation shafts of this cave-based data center all need to be excavated and newly built, resulting in a large amount of engineering excavation and further causing a substantial increase in project investment. In addition, this cave-based data center uses the method of regulating the air temperature inside the transverse data center chamber to achieve the purpose of dissipating heat and cooling the IT equipment in the data center. This indirect temperature control method has extremely limited effects on the heat dissipation and cooling of IT equipment. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a low-carbon cave-based data center arranged based on a karst cave, and a construction method and an operation method thereof.

[0006] The present invention is achieved through the following technical solutions:

[0007] A low-carbon cave-based data center arranged based on a karst cave, comprising a mountain body. There is an underground river developed in the mountain body, and the underground river flows through the karst cave in the mountain body. A bridge-type support platform is arranged in the karst cave, and the top elevation of the bridge-type support platform is higher than the highest water level of the underground river. Equipment cabinets and a liquid heat exchanger are arranged on the bridge-type support platform. The liquid heat exchanger is connected to the equipment cabinets through a coolant delivery assembly. A river water delivery assembly is connected to the liquid heat exchanger, and the end of the river water delivery assembly far from the liquid heat exchanger extends into the underground river;

[0008] A jacket is arranged on the outer wall of the equipment cabinet;

[0009] The coolant delivery assembly includes a coolant cold pipe and a coolant heat pipe. The coolant cold pipe and the coolant heat pipe are both connected to the jacket on the outer wall of the equipment cabinet and the liquid heat exchanger, and a coolant circulation pump is arranged on the coolant cold pipe;

[0010] The river water delivery assembly includes a river water cold pipe and a river water heat pipe. One end of the river water cold pipe is connected to the water inlet of the liquid heat exchanger, and the other end extends into the underground river, and a river water circulation pump is installed at this end. One end of the river water heat pipe is connected to the water outlet of the liquid heat exchanger, and the other end extends above the underground river or extends into the underground river, and this end is located downstream of the river water circulation pump.

[0011] The bridge-type support platform spans across the underground river;

[0012] The bridge-type support platform includes a platform board and a plurality of support assemblies arranged side by side at the bottom of the platform board;

[0013] The support assembly includes a middle arch support body and two side truss support bodies. The middle arch support body is located between the two side truss support bodies and is used to support the middle of the platform board. The middle arch support body spans across the underground river, and its foundations at both ends are correspondingly arranged on the rock masses on both sides of the underground river. The two side truss support bodies are correspondingly arranged on the karst cave rock masses on both sides of the underground river and are used to support the two ends of the platform board along the transverse direction of the underground river;

[0014] Both ends of the platform board along the transverse direction of the underground river are respectively connected to the side wall of the karst cave through side wall anchor rods;

[0015] A ladder is also arranged on the bridge-type support platform. The upper end of the ladder is connected to the platform board, and the lower end extends to the bottom surface of the karst cave.

[0016] A water retaining dam is arranged on the underground river on the downstream side of the bridge-type support platform. The height of the dam body of the water retaining dam is 3 meters to 5 meters, and the top surface of the bridge-type support platform is at least meters higher than the top surface of the water retaining dam.

[0017] A suspended hot wastewater discharge pipeline is provided on the underground river. The downstream end of the suspended hot wastewater discharge pipeline is connected to the water retaining dam, and its water outlet extends to the downstream of the water retaining dam. The water outlet of the river water heat pipe extends into the suspended hot wastewater discharge pipeline.

[0018] Multiple elastic rubber ropes are connected to the bottom of the suspended hot wastewater discharge pipeline. One end of the elastic rubber rope far from the suspended hot wastewater discharge pipeline is tied with a block stone, and the block stone sinks to the bottom of the underground river.

[0019] An electric power chamber is provided in the mountain body, and the bottom elevation of the electric power chamber is not lower than the top elevation of the bridge - type support platform;

[0020] A voltage conversion device, a distribution box and a power storage device are provided in the electric power chamber. Both the distribution box and the power storage device are electrically connected to the voltage conversion device, and the distribution box is electrically connected to the power storage device.

[0021] The underground river is connected to the surface water system outside the mountain body at the entrance of the karst cave. A hydraulic power generation dam is provided on the underground river at the entrance of the karst cave. The hydraulic power generation dam closes the entrance of the karst cave and is located on the upstream side of the bridge - type support platform. A water flow channel connecting the upstream and downstream water bodies is provided in the hydraulic power generation dam, and a hydraulic power generation device is provided in the water flow channel;

[0022] The hydraulic power generation device is electrically connected to the voltage conversion device in the electric power chamber through a waterproof cable.

[0023] An air inlet tunnel is provided on one side of the underground river in the mountain body, and an air outlet tunnel is provided on the other side of the underground river. The air inlet tunnel is connected to the electric power chamber. One end of both the air inlet tunnel and the air outlet tunnel is connected to the karst cave, and the other end is connected to the outside of the mountain body. The road surface elevations of both the air inlet tunnel and the air outlet tunnel are the same as the top elevation of the bridge - type support platform.

[0024] The air inlet tunnel is located on the upstream side of the bridge - type support platform, and the air outlet tunnel is located on the downstream side of the bridge - type support platform. Axial flow fans are installed on the tops of both the air inlet tunnel and the air outlet tunnel.

[0025] Roads and supporting buildings are provided on both sides of the underground river outside the mountain body. The roads on both sides of the underground river are respectively connected to the entrances of the air inlet tunnel and the air outlet tunnel. The supporting buildings are arranged on one side of the road and close to the road.

[0026] A construction method of a low - carbon cave - type data center arranged based on a karst cave, characterized by comprising the following steps:

[0027] Step 1: Select a mountain body, a karst cave, an underground river and a surface water system for the planned construction of the cave - type data center through exploration, and build roads and construction access roads outside the selected mountain body;

[0028] Step 2: Construct the road leading to the karst cave, then clean the dangerous rocks on the cave wall of the karst cave, and conduct surface sealing treatment on the local cave wall of the karst cave;

[0029] Step 3: Construct the water retaining dam, and reserve a position on the water retaining dam for connecting it with the suspended hot wastewater discharge pipeline. At the same time, conduct tunneling construction of the intake tunnel and the exhaust tunnel from the outside of the mountain to the karst cave side, and reserve an opening for the power chamber during the construction of the intake tunnel. After the construction of the intake tunnel is completed, horizontally excavate the power chamber along the intake tunnel;

[0030] Step 4: After the construction of the water retaining dam is completed, start building the bridge-type support platform;

[0031] Step 5: After the construction of the bridge-type support platform, the intake tunnel and the exhaust tunnel are completed, conduct the construction of the hydroelectric dam, and reserve a position for connecting it with the suspended hot wastewater discharge pipeline during the construction process;

[0032] Step 6: After the construction of the hydroelectric dam is completed, conduct the installation construction of the suspended hot wastewater discharge pipeline, connect the upstream end of the suspended hot wastewater discharge pipeline with the hydroelectric dam, and connect the downstream end with the water retaining dam. Use an elastic rubber rope tied with block stones to limit and fix the middle suspended section of the suspended hot wastewater discharge pipeline;

[0033] Step 7: Use the intake tunnel to transport the voltage conversion equipment, distribution box and power storage equipment to the power chamber for installation construction, and electrically connect the voltage conversion equipment with the hydroelectric power generation equipment;

[0034] Step 8: Transport the equipment cabinet and the liquid heat exchanger to the bridge-type support platform through the intake tunnel and the exhaust tunnel for installation construction;

[0035] Step 9: Construct the supporting buildings, complete the construction of the remaining facilities, and the installation and connection work of the remaining equipment.

[0036] An operation method of a low-carbon cave-type data center arranged based on a karst cave, including the following steps:

[0037] Step A: Start the coolant circulation pump to make the coolant circulate in the jacket on the outer wall of the equipment cabinet, the coolant cold pipe, the coolant heat pipe and the liquid heat exchanger;

[0038] Step B: Start the river water circulation pump to pump the river water in the underground river into the liquid heat exchanger for heat exchange with the coolant. The coolant that has completed heat exchange in the liquid heat exchanger flows back to the jacket on the outer wall of the equipment cabinet to cool and dissipate heat from the equipment cabinet. The river water that has completed heat exchange in the liquid heat exchanger is discharged to the downstream of the water retaining dam through the river water heat pipe and the suspended hot wastewater discharge pipeline;

[0039] Step C: When ventilation inside the karst cave is required, start the axial flow fans in the air intake tunnel and the air outlet tunnel, use the air intake tunnel as the air intake passage, and use the air outlet tunnel as the exhaust passage.

[0040] The beneficial effects of the present invention are as follows:

[0041] 1. On the one hand, by making full use of natural karst caves to build a cave-type data center, the excavation volume of the cave-type data center is reduced, and the construction cost of the cave-type data center can be significantly reduced; on the other hand, by making full use of the natural and cold river water in the underground river to exchange heat with the coolant in the liquid heat exchanger, and finally cooling and lowering the temperature of the IT equipment cabinets through the coolant, the operation cost of the cave-type data center is significantly reduced.

[0042] 2. The river water in the underground river is transported to the liquid heat exchanger through the river water transportation component. The river water exchanges heat with the coolant in the liquid heat exchanger, and the coolant cooled by the river water is transported to the equipment cabinets through the coolant transportation component to directly cool and dissipate heat from the equipment cabinets. This direct temperature control method significantly improves the heat dissipation and temperature reduction effects on the IT equipment cabinets.

[0043] 3. The hot river water that has completed heat exchange with the coolant in the liquid heat exchanger is first discharged into the suspended hot wastewater discharge pipeline through the river water heat pipe, and then discharged downstream of the water retaining dam through the suspended hot wastewater discharge pipeline, avoiding directly discharging the hot river water into the reservoir area of the water retaining dam, which may cause the water temperature in the reservoir area to rise, so that the water in the reservoir area of the water retaining dam can continuously maintain a relatively low temperature, further ensuring the heat exchange effect between the underground river water and the coolant in the liquid heat exchanger.

[0044] 4. The hydropower equipment installed in the hydropower dam, in cooperation with the voltage conversion equipment, distribution box and power storage equipment in the power tunnel, provides the electrical energy required for the operation of the electrical equipment in the data center, thus realizing the green and low-carbon operation of the data center. In addition, the voltage conversion equipment is also electrically connected to the external power grid line. When the hydropower equipment fails or the power generation is insufficient, or when the underground river is in the dry season, the external power grid line can be used to assist in power supply for the voltage conversion equipment, further ensuring the continuous, safe and stable operation of the cave-type data center. In the extreme case where neither the hydropower equipment nor the external power grid line can supply power to the electrical equipment in the data center, power supply can also be provided through the storage battery. Description of the Drawings

[0045] Figure 1 It is the structural layout diagram of the present invention along the transverse direction of the underground river;

[0046] Figure 2 It is the structural layout diagram of the present invention along the longitudinal direction of the underground river;

[0047] Figure 3 isFigure 2 Partial enlarged view at I;

[0048] Figure 4 Plan layout diagram of the mountain body, karst cave, underground river, surface water system, hydropower dam, water retaining dam, air intake tunnel, air outlet tunnel, power chamber, road and supporting buildings of the present invention;

[0049] Figure 5 Power supply principle block diagram of the hydropower equipment of the present invention;

[0050] Figure 6 Structural schematic diagram of air change in the karst cave of the present invention;

[0051] Figure 7 Track diagram of the staff of the data center entering and leaving the cave-type data center;

[0052] In the figure: 1 - mountain body, 2 - karst cave, 3 - underground river, 4 - surface water system, 5 - hydropower dam, 51 - water flow channel, 52 - hydropower equipment, 6 - water retaining dam, 7 - bridge-type support platform, 71 - platform plate, 72 - side truss support body, 73 - middle arch support body, 74 - side wall anchor rod, 8 - air intake tunnel, 9 - air outlet tunnel, 10 - equipment cabinet, 11 - liquid heat exchanger, 111 - coolant delivery component, 1111 - coolant cold pipe, 1112 - coolant heat pipe, 1113 - coolant circulation pump, 113 - river water delivery component, 1131 - river water cold pipe, 1132 - river water heat pipe, 1133 - river water circulation pump, 12 - suspended hot wastewater discharge pipe, 13 - elastic rubber rope, 14 - power chamber, 141 - voltage conversion equipment, 142 - distribution box, 143 - power storage equipment, 15 - road, 16 - supporting building. Detailed implementation manners

[0053] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0054] As Figures 1 to 7 shown, a low-carbon cave-type data center arranged based on a karst cave according to the present invention includes a mountain body 1. An underground river 3 is developed in the mountain body 1, and the underground river 3 flows through the karst cave 2 in the mountain body 1. A bridge-type support platform 7 is provided in the karst cave 2, and the top elevation of the bridge-type support platform 7 is higher than the highest water level of the underground river 3. An equipment cabinet 10 and a liquid heat exchanger 11 are provided on the bridge-type support platform 7. The liquid heat exchanger 11 is connected to the equipment cabinet 10 through a coolant delivery component 111. A river water delivery component 113 is connected to the liquid heat exchanger 11, and the end of the river water delivery component 113 far from the liquid heat exchanger 11 extends into the underground river 3.

[0055] During use, the top elevation of the bridge-type support platform 7 is higher than the highest water level of the underground river 3, preventing equipment such as the equipment cabinet 10 and the liquid heat exchanger 11 installed on the bridge-type support platform 7 from being waded by water and ensuring the safe operation of these devices.

[0056] The river water in the underground river 3 is conveyed to the liquid heat exchanger 11 through the river water conveying component 113. The river water exchanges heat with the coolant in the liquid heat exchanger 11, and the coolant cooled by the river water is conveyed to the equipment cabinet 10 through the coolant conveying component 111 to directly cool and dissipate heat from the equipment cabinet 10. This direct temperature control method significantly improves the heat dissipation and cooling effect of the equipment cabinet 10. Compared with the existing technology of heat exchange between air and air, the use of river water and coolant for heat exchange has a high heat exchange efficiency, can improve the heat dissipation and cooling effect of the coolant on the equipment cabinet 10, and also helps to reduce the operating energy consumption of the cave-type data center. There is no need to add equipment such as suction fans and supply fans to continuously operate for heat dissipation and cooling of the equipment cabinet 10, further reducing the operating energy consumption of the cave-type data center.

[0057] On the one hand, making full use of the natural karst cave 2 to build the cave-type data center reduces the excavation volume of the cave-type data center and can significantly reduce the construction cost and project investment of the cave-type data center; on the other hand, making full use of the natural and cold river water in the underground river 3 to exchange heat with the coolant in the liquid heat exchanger 11, and finally realizing heat dissipation and cooling of the equipment cabinet 10 through the coolant, significantly reducing the operating cost of the cave-type data center.

[0058] A jacket is provided on the outer wall of the equipment cabinet 10;

[0059] The coolant conveying component 111 includes a coolant cold pipe 1111 and a coolant heat pipe 1112. The coolant cold pipe 1111 and the coolant heat pipe 1112 are both connected to the jacket on the outer wall of the equipment cabinet 10 and the liquid heat exchanger 11, and a coolant circulation pump 1113 is provided on the coolant cold pipe 1111.

[0060] The river water conveying component 113 includes a river water cold pipe 1131 and a river water heat pipe 1132. One end of the river water cold pipe 1131 is connected to the water inlet of the liquid heat exchanger 11, and the other end extends into the underground river 3, and a river water circulation pump 1133 is installed at this end. One end of the river water heat pipe 1132 is connected to the water outlet of the liquid heat exchanger 11, and the other end extends above the underground river 3 or into the underground river 3, and this end is located downstream of the river water circulation pump 1133. The river water in the underground river 3 is pumped by the river water circulation pump 1133 to the liquid heat exchanger 11, and the river water exchanges heat with the coolant in the liquid heat exchanger 11, so as to achieve the purpose of cooling the coolant; by using the river water to exchange heat with the coolant in the liquid heat exchanger 11, the effective utilization of natural resources is realized, and the operation cost of the cave-type data center is reduced. In addition, the continuous river water can continuously maintain a relatively low temperature, ensuring the heat exchange efficiency and heat exchange effect with the coolant, and further ensuring the heat dissipation and cooling effect of the coolant on the IT equipment cabinet 10; the river water that has completed heat exchange with the coolant in the liquid heat exchanger 11 is discharged into the river water in the underground river 3 downstream of the river water circulation pump 1133 through the river water heat pipe 1132, with low energy consumption; at the same time, it can avoid the river water temperature at the river water circulation pump 1133 from rising due to the hot water discharged by the river water heat pipe 1132, and further ensure that the river water pumped into the liquid heat exchanger 11 continuously maintains a low temperature, so as to achieve the purpose of ensuring the heat exchange effect between the river water and the coolant in the liquid heat exchanger 11.

[0061] The bridge-type support platform 7 spans across the underground river 3;

[0062] The bridge-type support platform 7 includes a platform plate 71 and a plurality of support components arranged side by side at the bottom of the platform plate 71;

[0063] The support component includes a middle arch support body 73 and two side truss support bodies 72. The middle arch support body 73 is located between the two side truss support bodies 72 and is used to support the middle of the platform plate 71. The middle arch support body 73 spans across the underground river 3, and its bases at both ends are correspondingly arranged on the rock masses on both sides of the underground river 3. The two side truss support bodies 72 are correspondingly arranged on the rock masses of the karst caves 2 on both sides of the underground river 3 and are used to support the two ends of the platform plate 71 along the transverse direction of the underground river 3;

[0064] Both ends of the platform plate 71 along the transverse direction of the underground river 3 are respectively connected to the side wall of the karst cave 2 through side wall anchor rods 74;

[0065] A ladder is also provided on the bridge-type support platform 7. The upper end of the ladder is connected to the platform plate 71, and the lower end extends to the bottom surface of the karst cave 2.

[0066] During use, the middle arch support body 73 is a steel arch structure, and the side truss support body 72 is a steel truss structure. In the thickness direction of the platform plate 71 (i.e., in the height direction of the platform plate 71), it is supported by multiple support components, and each support component includes a middle arch support body 73 and two side truss support bodies 72, ensuring the support stability of the support component for the platform plate 71; in the transverse direction of the underground river 3, both ends of the platform plate 71 are connected to the side wall of the karst cave 2 through side wall anchor rods 74, which can improve the installation stability of the platform plate 71 to form a structurally stable and reliable equipment installation platform.

[0067] A ladder is installed on the bridge-type support platform 7 to facilitate the staff to get on and off the platform plate 71.

[0068] A water retaining dam 6 is provided on the downstream side of the bridge-type support platform 7 on the underground river 3. The dam height of the water retaining dam 6 is 3 to 5 meters, and the top surface of the bridge-type support platform 7 is at least 3 meters higher than the top surface of the water retaining dam 6. During use, the water of the underground river 3 is intercepted by the water retaining dam 6 to ensure that there is sufficient river water for heat exchange with the coolant in the liquid heat exchanger 11 throughout the year, further ensuring the cooling and heat dissipation effect of the coolant on the equipment cabinet 10. The top surface of the bridge-type support platform 7 is at least 3 meters higher than the top surface of the water retaining dam 6 to prevent the water of the underground river 3 from splashing onto the platform plate 71, and the height from the top surface of the bridge-type support platform 7 to the top surface of the karst cave 2 should meet the installation requirements of equipment such as the equipment cabinet 10 and the liquid heat exchanger 11.

[0069] A suspended hot wastewater discharge pipe 12 is provided on the underground river 3. The downstream end of the suspended hot wastewater discharge pipe 12 is connected to the water retaining dam 6, and its water outlet extends to the downstream of the water retaining dam 6. The water outlet of the river water heat pipe 1132 extends into the suspended hot wastewater discharge pipe 12. The hot river water discharged by the river water heat pipe 1132 is discharged to the downstream of the water retaining dam 6 through the suspended hot wastewater discharge pipe 12, avoiding directly discharging the hot river water into the reservoir area of the water retaining dam 6, which may cause the water temperature in the reservoir area to rise, so that the water body in the reservoir area of the water retaining dam 6 can continuously maintain a relatively low temperature, further ensuring the heat exchange effect between the water of the underground river 3 and the coolant in the liquid heat exchanger 11.

[0070] A plurality of elastic rubber ropes 13 are connected to the bottom of the suspended hot wastewater discharge pipe 12. At one end of the elastic rubber rope 13 away from the suspended hot wastewater discharge pipe 12, a block stone is tied, and the block stone sinks to the bottom of the underground river 3. During use, the suspended hot wastewater discharge pipe 12 is made of a lightweight heat-resistant material. Its upstream end is anchored to the hydroelectric dam 5, and its downstream end is anchored to the water retaining dam 6. At the same time, through the cooperation of the block stone and the elastic rubber rope 13, the stability of the suspended hot wastewater discharge pipe 12 under the impact of water flow is improved. When the water level height is different, the distance between the suspended hot wastewater discharge pipe 12 and the riverbed of the underground river 3 will change. Therefore, in the present invention, the elastic rubber rope 13 that can be appropriately extended or shortened is used to connect the block stone and the suspended hot wastewater discharge pipe 12, so that the elastic rubber rope 13 can adapt to the change of the water level height. At the same time, the kinetic energy of the water flow impacting the suspended hot wastewater discharge pipe 12 can be offset by the elasticity of the elastic rubber rope 13.

[0071] An electric power chamber 14 is provided in the mountain body 1, and the bottom elevation of the electric power chamber 14 is not lower than the top elevation of the bridge-type support platform 7;

[0072] A voltage conversion device 141, a distribution box 142 and an electric power storage device 143 are provided in the electric power chamber 14. The distribution box 142 and the electric power storage device 143 are both electrically connected to the voltage conversion device 141, and the distribution box 142 is electrically connected to the electric power storage device 143.

[0073] During use, the voltage conversion device 141 is a step-down transformer. The electric power storage device 143 includes a rectifier, a storage battery and an inverter. The electricity stepped down by the step-down transformer is directly transmitted to the distribution box 142 to supply power to the electrical equipment of the present invention. The other path is transmitted to the rectifier and stored in the storage battery after being rectified by the rectifier. When the hydroelectric power generation equipment 52 has a short-term failure, or when the water volume of the underground river 3 is insufficient, resulting in the power generation of the hydroelectric power generation equipment 52 being insufficient to maintain the operation of the cave-type data center, the direct current output by the storage battery is converted into alternating current by the inverter and then transmitted to the distribution box 142 to supply power to the electrical equipment of the present invention, ensuring the continuous, safe and stable operation of the cave-type data center. Through the distribution box 142 for power distribution, the distribution box 142 is electrically connected to each electrical equipment of the cave-type data center through a waterproof cable.

[0074] The underground river 3 is connected to the surface water system 4 outside the mountain body 1 at the entrance of the karst cave 2. A hydroelectric dam 5 is provided on the underground river 3 at the entrance of the karst cave 2. The hydroelectric dam 5 closes the entrance of the karst cave 2 and is located on the upstream side of the bridge-type support platform 7. A water flow channel 51 communicating the upstream and downstream water bodies is provided in the hydroelectric dam 5, and a hydroelectric power generation equipment 52 is provided in the water flow channel 51;

[0075] The hydroelectric power generation equipment 52 is electrically connected to the voltage conversion equipment 141 in the power tunnel 14 through a waterproof cable. During use, the high-level water flow of the surface water system 4 flows through the water flow channel 51 in the hydroelectric dam 5, and drives the operation of the hydroelectric power generation equipment 52 to generate electricity during this process. The hydroelectric power generation equipment 52 includes a hydroelectric generating set and a step-up transformer to step up the electricity output by the hydroelectric generating set through the step-up transformer. The step-up transformer is connected to the voltage conversion equipment 141 and the external power grid line through cables respectively to achieve power supply and transmission. In addition, as Figure 5 shown, the voltage conversion equipment 141 is also electrically connected to the external power grid line. When the hydroelectric power generation equipment 52 fails or the power generation is insufficient, the external power grid line can be used to supply power to the voltage conversion equipment 141, further ensuring the continuous, safe and stable operation of the cavern-type data center.

[0076] The priority order of power supply to the cavern-type data center is: power supply by the hydroelectric power generation equipment 52, power supply by the external power grid line, and power supply by the storage battery.

[0077] An air intake tunnel 8 is provided on one side of the underground river 3 inside the mountain body 1, and an air outlet tunnel 9 is provided on the other side of the underground river 3. The air intake tunnel 8 is communicated with the power tunnel 14. One ends of the air intake tunnel 8 and the air outlet tunnel 9 are both communicated with the karst cave 2, and the other ends are both communicated with the outside of the mountain body 1. The road surface elevations of the air intake tunnel 8 and the air outlet tunnel 9 are the same as the top surface elevation of the bridge-type support platform 7. The air intake tunnel 8 and the air outlet tunnel 9 are used as the access channels for staff and equipment, and are used as the air exchange channels of the cavern-type data center. During use, the power tunnel 14 is arranged on one side of the air intake tunnel 8 and is communicated with the air intake tunnel 8, which is convenient for introducing the cable for connecting the external power grid line and the voltage conversion equipment 141 into the power tunnel 14 by using the air intake tunnel 8.

[0078] The air intake tunnel 8 is located on the upstream side of the bridge-type support platform 7, and the air outlet tunnel 9 is located on the downstream side of the bridge-type support platform 7. Axial flow fans are installed on the tops of the air intake tunnel 8 and the air outlet tunnel 9. As Figure 6 shown, when the air in the karst cave 2 is exchanged, the air enters the karst cave 2 from the air intake tunnel 8, then flows from the upstream end to the downstream end of the bridge-type support platform 7, and finally is discharged to the outside of the mountain body 1 from the air outlet tunnel 9. Installing axial flow fans on the tops of the air intake tunnel 8 and the air outlet tunnel 9 can guide the air to flow in the cavern-type data center and achieve the purpose of improving the air exchange efficiency of the karst cave 2.

[0079] On both sides of the underground river 3 outside the mountain body 1, there are roads 15 and supporting buildings 16. The roads 15 on both sides of the underground river 3 are respectively connected to the entrances of the air intake tunnel 8 and the air outlet tunnel 9. The supporting buildings 16 are arranged on one side of the road 15 and are close to the road 15. The supporting buildings 16 include dormitories, canteens, etc.

[0080] A construction method of a low-carbon cavern-type data center based on cave layout, characterized in that it includes the following steps:

[0081] Step 1: Select the mountain 1, cave 2, underground river 3 and surface water system 4 where the cave-type data center is to be built through investigation, and build a road 15 and a construction access road outside the selected mountain 1.

[0082] When selecting, it is required that the water source of the underground river 3 is relatively abundant, the cross-section of the cave 2 is relatively large, the length of the cave body should be no less than 100m, the width of the cave body at the narrowest point should be no less than 10m, and the height of the cave body at the shortest point should be no less than 15m.

[0083] Step 2: construct the road 15 into the cave 2, then clean the dangerous rocks on the pit wall of the cave 2, and seal the surface of the local pit wall of the cave 2. The surface of the local pit wall can be sealed by spraying concrete on the inner wall of the cave 2.

[0084] Step three, construct a water retaining dam 6 and reserve a position on the water retaining dam 6 for connection with the suspended hot wastewater discharge pipe 12. At the same time, excavate the air inlet tunnel 8 and the air outlet tunnel 9 from the outside of the mountain 1 to the side of the cave 2, and reserve an opening for the power cavern 14 during the construction of the air inlet tunnel 8. After the construction of the air inlet tunnel 8 is completed, the power cavern 14 is excavated horizontally along the air inlet tunnel 8.

[0085] Step 4: After the construction of the water retaining dam 6 is completed, the bridge-type support platform 7 is constructed.

[0086] Step 5: After the construction of the bridge support platform 7, the air inlet tunnel 8 and the air outlet tunnel 9 is completed, the hydroelectric dam 5 is constructed, and a position for connecting it with the suspended hot wastewater discharge pipe 12 is reserved during the construction process. Since the entrance of the karst cave 2 will be blocked after the construction of the hydroelectric dam 5 is completed, before the construction is carried out, it is necessary to ensure that the air inlet tunnel 8 and the air outlet tunnel 9 connecting the inside of the karst cave 2 have been opened.

[0087] Step 6: After the construction of the hydroelectric dam 5 is completed, the suspended hot wastewater discharge pipe 12 is installed and constructed, and the upstream end of the suspended hot wastewater discharge pipe 12 is connected to the hydroelectric dam 5, and the downstream end is connected to the water retaining dam 6, and the middle suspended section of the suspended hot wastewater discharge pipe 12 is limited and fixed using an elastic rubber rope 13 tied with stones.

[0088] Step 7: Use the air inlet tunnel 8 to transport the voltage conversion equipment 141 , the distribution box 142 and the power storage equipment 143 to the power cavern 14 for installation and construction, and electrically connect the voltage conversion equipment 141 to the hydropower equipment 52 .

[0089] Step 8: Transport the equipment cabinet 10 and the liquid heat exchanger 11 to the bridge-type support platform 7 through the air inlet tunnel 8 and the air outlet tunnel 9 for installation construction.

[0090] Step 9: Construct the supporting building 16, complete the construction of the remaining facilities, and install and connect the remaining equipment.

[0091] An operation method of a low-carbon cave-type data center arranged based on a karst cave includes the following steps:

[0092] Step A: Start the coolant circulation pump 1113 to make the coolant circulate in the jacket on the outer wall of the equipment cabinet 10, the coolant cold pipe 1111, the coolant heat pipe 1112, and the liquid heat exchanger 11.

[0093] Step B: Start the river water circulation pump 1133 to pump the river water in the underground river 3 into the liquid heat exchanger 11 for heat exchange with the coolant. The coolant that has completed heat exchange in the liquid heat exchanger 11 flows back to the jacket on the outer wall of the equipment cabinet 10 to cool and dissipate heat from the equipment cabinet 10. The river water that has completed heat exchange in the liquid heat exchanger 11 is discharged to the downstream of the water retaining dam 6 through the river water heat pipe 1132 and the suspended hot wastewater discharge pipe 12.

[0094] Step C: When it is necessary to ventilate the inside of the karst cave 2, start the axial flow fans in the air inlet tunnel 8 and the air outlet tunnel 9, and use the air inlet tunnel 8 as the air inlet channel and the air outlet tunnel 9 as the exhaust channel.

Claims

1. A low-carbon cavern-type data center based on cave layout, characterized by: The invention comprises a mountain (1), wherein an underground river (3) is developed in the mountain (1), and the underground river (3) flows through a karst cave (2) in the mountain (1), wherein a bridge-type support platform (7) is provided in the karst cave (2), and the top surface elevation of the bridge-type support platform (7) is higher than the highest water level of the underground river (3), and an equipment cabinet (10) and a liquid heat exchanger (11) are provided on the bridge-type support platform (7), wherein the liquid heat exchanger (11) is connected to the equipment cabinet (10) via a coolant delivery component (111), and a river water delivery component (113) is connected to the liquid heat exchanger (11), and an end of the river water delivery component (113) away from the liquid heat exchanger (11) extends into the underground river (3); A jacket is provided on the outer wall of the equipment cabinet (10); The cooling liquid transport component (111) comprises a cooling liquid cooling pipe (1111) and a cooling liquid heat pipe (1112); the cooling liquid cooling pipe (1111) and the cooling liquid heat pipe (1112) are both connected to a jacket on the outer wall of the equipment cabinet (10) and a liquid heat exchanger (11), and a cooling liquid circulation pump (1113) is provided on the cooling liquid cooling pipe (1111); The river water transport component (113) comprises a river water cooling pipe (1131) and a river water heat pipe (1132); one end of the river water cooling pipe (1131) is connected to the water inlet of the liquid heat exchanger (11), and the other end extends into the underground river (3), and a river water circulation pump (1133) is installed at this end; one end of the river water heat pipe (1132) is connected to the water outlet of the liquid heat exchanger (11), and the other end extends to directly above the underground river (3) or into the underground river (3), and this end is located downstream of the river water circulation pump (1133); A water retaining dam (6) is provided on the underground river (3) at the downstream side of the bridge-type support platform (7); The underground river (3) is connected to the surface water system (4) outside the mountain (1) at the entrance of the karst cave (2). A hydroelectric dam (5) is provided on the underground river (3) at the entrance of the karst cave (2). The hydroelectric dam (5) closes the entrance of the karst cave (2) and is located on the upstream side of the bridge-type support platform (7). A water flow channel (51) is provided in the hydroelectric dam (5) to connect the upstream and downstream water bodies, and a hydroelectric power generation device (52) is provided in the water flow channel (51); An air inlet tunnel (8) is provided on one side of the underground river (3) in the mountain (1), and an air outlet tunnel (9) is provided on the other side of the underground river (3); the air inlet tunnel (8) is connected to the power cavern (14); one end of the air inlet tunnel (8) and the air outlet tunnel (9) are both connected to the karst cave (2), and the other end is both connected to the outside of the mountain (1); the road surface elevations of the air inlet tunnel (8) and the air outlet tunnel (9) are consistent with the top surface elevation of the bridge-type support platform (7); The air inlet tunnel (8) is located on the upstream side of the bridge-type support platform (7), and the air outlet tunnel (9) is located on the downstream side of the bridge-type support platform (7). Axial flow fans are installed on the tops of the air inlet tunnel (8) and the air outlet tunnel (9).

2. The low-carbon cavern-type data center based on cave layout according to claim 1 is characterized by: The bridge-type support platform (7) spans the underground river (3); The bridge-type support platform (7) comprises a platform plate (71) and a plurality of support components arranged side by side at the bottom of the platform plate (71); The support assembly comprises a middle arch support body (73) and two side truss support bodies (72), wherein the middle arch support body (73) is located between the two side truss support bodies (72) and is used to support the middle part of the platform plate (71), the middle arch support body (73) spans the underground river (3), and the foundations at both ends thereof are correspondingly arranged on the rock masses on both sides of the underground river (3), and the two side truss support bodies (72) are correspondingly arranged on the rock masses of the karst cave (2) on both sides of the underground river (3), and are used to support the two ends of the platform plate (71) along the underground river (3) in a horizontal direction; The two ends of the platform plate (71) along the horizontal direction of the underground river (3) are connected to the side walls of the cave (2) via side wall anchor rods (74); The bridge-type supporting platform (7) is also provided with a ladder, the upper end of the ladder is connected to the platform plate (71), and the lower end extends to the bottom surface of the cave (2).

3. The low-carbon cavern-type data center based on cave layout according to claim 1 is characterized by: The dam body height of the water retaining dam (6) is 3 meters to 5 meters, and the top surface of the bridge-type support platform (7) is at least 3 meters higher than the top surface of the water retaining dam (6).

4. The low-carbon cavern-type data center based on cave layout according to claim 1 is characterized by: A suspended hot wastewater discharge pipe (12) is provided on the underground river (3), the downstream end of the suspended hot wastewater discharge pipe (12) is connected to the water retaining dam (6), and its outlet extends to the downstream of the water retaining dam (6), and the outlet of the river water heat pipe (1132) extends into the suspended hot wastewater discharge pipe (12).

5. The low-carbon cavern-type data center based on cave layout according to claim 4 is characterized by: The bottom of the suspended hot wastewater discharge pipe (12) is connected to a plurality of elastic rubber ropes (13), and a stone block is tied to one end of the elastic rubber rope (13) away from the suspended hot wastewater discharge pipe (12), and the stone block sinks to the bottom of the underground river (3).

6. The low-carbon cavern-type data center based on cave layout according to claim 1 is characterized by: An electric power cavern (14) is provided in the mountain (1), and the bottom elevation of the electric power cavern (14) is not lower than the top elevation of the bridge-type support platform (7); The power cavern (14) is provided with a voltage conversion device (141), a distribution box (142) and a power storage device (143); the distribution box (142) and the power storage device (143) are both electrically connected to the voltage conversion device (141), and the distribution box (142) is electrically connected to the power storage device (143).

7. The low-carbon cavern-type data center based on cave layout according to claim 6 is characterized by: The hydroelectric power generation equipment (52) is electrically connected to the voltage conversion equipment (141) in the power cavern (14) via a waterproof cable.

8. The low-carbon cavern-type data center based on cave layout according to claim 1 is characterized by: Roads (15) and supporting buildings (16) are provided on both sides of the underground river (3) outside the mountain (1). The roads (15) on both sides of the underground river (3) are connected to the openings of the air inlet tunnel (8) and the air outlet tunnel (9) in a one-to-one correspondence. The supporting buildings (16) are provided on one side of the road (15) and are arranged close to the road (15).

9. A construction method for a low-carbon cavern-type data center based on cave layout according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Select the mountain (1), karst cave (2), underground river (3) and surface water system (4) where the cavernous data center is to be built through investigation, and build a road (15) and a construction access road outside the selected mountain (1); Step 2: construct a road (15) leading into the cave (2), then clear the dangerous rocks on the pit wall of the cave (2), and perform surface sealing treatment on a part of the pit wall of the cave (2); Step 3: construct a water retaining dam (6), and reserve a position on the water retaining dam (6) for connecting it to the suspended hot wastewater discharge pipe (12). At the same time, excavate the air inlet tunnel (8) and the air outlet tunnel (9) from the outside of the mountain (1) to the side of the cave (2), and reserve an opening for the power cavern (14) during the construction of the air inlet tunnel (8). After the construction of the air inlet tunnel (8) is completed, the power cavern (14) is excavated horizontally along the air inlet tunnel (8); Step 4: After the construction of the water retaining dam (6) is completed, the bridge-type support platform (7) is constructed; Step 5: After the construction of the bridge support platform (7), the air inlet tunnel (8) and the air outlet tunnel (9) is completed, the hydroelectric dam (5) is constructed, and a position for connecting it with the suspended hot wastewater discharge pipeline (12) is reserved during the construction process; Step 6: After the construction of the hydroelectric dam (5) is completed, the suspended hot wastewater discharge pipe (12) is installed and constructed, and the upstream end of the suspended hot wastewater discharge pipe (12) is connected to the hydroelectric dam (5), and the downstream end is connected to the water retaining dam (6), and the middle suspended section of the suspended hot wastewater discharge pipe (12) is limited and fixed using an elastic rubber rope (13) tied with a stone block; Step 7: using the air inlet tunnel (8) to transport the voltage conversion equipment (141), the distribution box (142) and the power storage equipment (143) to the power cavern (14) for installation, and electrically connecting the voltage conversion equipment (141) to the hydroelectric power generation equipment (52); Step 8: transport the equipment cabinet (10) and the liquid heat exchanger (11) to the bridge-type support platform (7) through the air inlet tunnel (8) and the air outlet tunnel (9) for installation; Step 9: Construct supporting buildings (16), complete the construction of remaining facilities, and install and connect the remaining equipment.

10. An operating method of a low-carbon cavern-type data center based on cave layout according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step A, starting the coolant circulation pump (1113) to allow the coolant to circulate in the jacket on the outer wall of the equipment cabinet (10), the coolant cold pipe (1111), the coolant heat pipe (1112) and the liquid heat exchanger (11); Step B, start the river water circulation pump (1133), pump the river water in the underground river (3) to the liquid heat exchanger (11) to exchange heat with the coolant, the coolant in the liquid heat exchanger (11) that has completed the heat exchange flows back to the jacket on the outer wall of the equipment cabinet (10) to cool down and dissipate the heat of the equipment cabinet (10), and the river water in the liquid heat exchanger (11) that has completed the heat exchange is discharged to the downstream of the water retaining dam (6) through the river water heat pipe (1132) and the suspended hot wastewater discharge pipe (12); Step C: When it is necessary to change the air inside the cave (2), start the axial flow fans in the air inlet tunnel (8) and the air outlet tunnel (9), and use the air inlet tunnel (8) as an air inlet passage and the air outlet tunnel (9) as an air exhaust passage.

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