Low-carbon cave depot type data center based on karst cave layout and construction method and operation method of low-carbon cave depot type data center

Abstract

The invention discloses a low-carbon cave depot type data center based on karst cave layout and a construction method and an operation method of the low-carbon cave depot type data center, and belongs to the technical field of cave depot type data center construction. The data center comprises a mountain body, an underground river is developed in the mountain body, the underground river flows through a karst cave in the mountain body, a bridge type supporting platform is arranged in the karst cave, the elevation of the top face of the bridge type supporting platform is higher than the highest water level of the underground river, and an equipment cabinet and a liquid heat exchanger are arranged on the bridge type supporting platform. The liquid heat exchanger is connected with the equipment cabinet through a cooling liquid conveying assembly, the liquid heat exchanger is connected with a river water conveying assembly, and the end, away from the liquid heat exchanger, of the river water conveying assembly extends into an underground river. The natural karst cave is fully utilized to build the cave depot type data center, the excavation volume of the cave depot type data center is reduced, and the building cost of the cave depot type data center can be remarkably reduced.

Description

Technical Field

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

[0002] As a carrier of massive data, the demand for data centers has increased significantly, and the construction market will be in a rapid development stage for a long period of time. In order to meet the needs of data center security performance, Guizhou Province proposed and built a cave-type data center that is completely buried inside the mountain. It uses the external mountain as a shelter, which is significantly better than other types of data centers in terms of structural protection capabilities and has become a new direction for the development of data centers. However, the mountain outside the cave-type data center is relatively closed and cannot meet the rapid heat dissipation needs of the data center's IT equipment.

[0003] A Chinese patent document with publication number CN118292682A discloses a combined ecological building complex of a cavern-type data center. During operation, the computers inside the cavern of the horizontal data center continuously generate heat when working, causing the air to rise steadily and gather in the arch of the cavern of the horizontal data center. At this time, the hot air gathered at the top of the cross-section of the cavern of the horizontal data center 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 to the outside through the cold air delivery pipe, and then diffuses it relatively evenly into the cavern of the horizontal data center through the side vertical blower arranged on the side wall of the cavern of the horizontal data center, thereby realizing temperature control and regulation of the cavern of the horizontal data center.

[0004] However, the vertical communication channel, horizontal data center cavern and zigzag ventilation shaft of the cavern-style data center all need to be excavated and newly built, resulting in a large amount of excavation work, which further leads to a significant increase in project investment. In addition, the cavern-style data center adopts the method of regulating the air temperature in the horizontal data center cavern to achieve the purpose of heat dissipation and cooling of IT equipment in the data center. This indirect temperature control method has extremely limited effect 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 cavern-type data center based on cave layout and a construction method and an operation method thereof.

[0006] The present invention is achieved through the following technical solutions: A low-carbon cavern-type data center based on cave layout, comprising a mountain, wherein an underground river is developed in the mountain, and the underground river flows through the cave in the mountain, wherein 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, wherein an equipment cabinet and a liquid heat exchanger are provided on the bridge-type support platform, wherein the liquid heat exchanger is connected to the equipment cabinet through a coolant delivery component, wherein a river water delivery component is connected to the liquid heat exchanger, and an end of the river water delivery component away from the liquid heat exchanger extends into the underground river; A jacket is provided on the outer wall of the equipment cabinet; The coolant delivery assembly includes a coolant cold pipe and a coolant heat pipe, both of which are connected to the jacket on the outer wall of the equipment cabinet and the liquid heat exchanger, and a coolant circulation pump is provided on the coolant cold pipe; The river water transport assembly includes a river water cooling pipe and a river water heat pipe. One end of the river water cooling 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 to directly above the underground river or into the underground river, and this end is located downstream of the river water circulation pump.

[0007] The bridge-type support platform spans the underground river; The bridge-type support platform includes a platform plate and a plurality of support components arranged side by side at the bottom of the platform plate; 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 plate. The middle arch support body spans the underground river, and the foundations at both ends of the middle arch support body 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 rock masses on both sides of the underground river, and are used to support the two ends of the platform plate along the underground river in the horizontal direction. The two ends of the platform plate along the dark river in the horizontal direction are connected to the side walls of the cave through side wall anchor rods; The bridge-type supporting platform is also provided with a ladder, the upper end of which is connected to the platform plate, and the lower end of which extends to the bottom surface of the cave.

[0008] A water retaining dam is provided on the downstream side of the bridge-type supporting platform on the underground river. The height of the water retaining dam is 3 to 5 meters, and the top surface of the bridge-type supporting platform is at least meters higher than the top surface of the water retaining dam.

[0009] 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 outlet extends to the downstream of the water retaining dam. The outlet of the river water heat pipe extends into the suspended hot wastewater discharge pipeline.

[0010] A plurality of elastic rubber ropes are connected to the bottom of the suspended hot wastewater discharge pipe, and stones are tied to one end of the elastic rubber ropes away from the suspended hot wastewater discharge pipe, and the stones sink to the bottom of the underground river.

[0011] The mountain is provided with an electric power cavern, and the bottom elevation of the electric power cavern is not lower than the top elevation of the bridge-type support platform; The power cavern is provided with a voltage conversion device, a distribution box and a power storage device. The distribution box and the power storage device are both electrically connected to the voltage conversion device, and the distribution box is electrically connected to the power storage device.

[0012] The underground river is connected with the surface water system outside the mountain at the entrance of the cave. A hydroelectric dam is arranged on the underground river at the entrance of the cave. The hydroelectric dam closes the entrance of the 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 arranged in the hydroelectric dam, and hydroelectric power generation equipment is arranged in the water flow channel. The hydroelectric power generation equipment is electrically connected to the voltage conversion equipment in the power cavern through a waterproof cable.

[0013] An air inlet tunnel is provided on one side of the underground river in the mountain, and an air outlet tunnel is provided on the other side of the underground river. The air inlet tunnel is connected to the power cavern. One end of the air inlet tunnel and the air outlet tunnel are connected to the karst cave, and the other end is connected to the outside of the mountain. The road surface elevations of the air inlet tunnel and the air outlet tunnel are consistent with the top surface elevation of the bridge-type support platform.

[0014] The air inlet tunnel is located at the upstream side of the bridge-type supporting platform, and the air outlet tunnel is located at the downstream side of the bridge-type supporting platform. Axial flow fans are installed on the tops of the air inlet tunnel and the air outlet tunnel.

[0015] There are roads and supporting buildings on both sides of the underground river outside the mountain. The roads on both sides of the underground river are connected to the entrances of the air inlet tunnel and the air outlet tunnel one by one. The supporting buildings are located on one side of the road and arranged close to the road.

[0016] A construction method of a low-carbon cavern-type data center based on cave layout, characterized in that it includes the following steps: Step 1: Select the mountain, cave, underground river and surface water system where the cavernous data center is to be built through survey, and build roads and construction access roads outside the selected mountain; Step 2: construct the road into the cave, then clean the dangerous rocks on the cave wall, and seal the surface of the local cave wall; Step 3: construct a water retaining dam and reserve a position on the water retaining dam for connection with the suspended hot wastewater discharge pipeline. At the same time, excavate the air inlet tunnel and the air outlet tunnel from the outside of the mountain to the cave side, and reserve the opening of the power cavern during the construction of the air inlet tunnel. After the construction of the air inlet tunnel is completed, the power cavern is excavated horizontally along the air inlet tunnel; Step 4: After the construction of the water retaining dam is completed, start to build the bridge-type support platform; Step 5: After the construction of the bridge support platform, the air inlet tunnel and the air outlet tunnel is completed, the hydroelectric dam is constructed, and a position for connecting it with the suspended hot wastewater discharge pipeline is reserved during the construction process; Step 6: After the construction of the hydroelectric dam is completed, the suspended hot wastewater discharge pipeline is installed and constructed, and the upstream end of the suspended hot wastewater discharge pipeline is connected to the hydroelectric dam, and the downstream end is connected to the water retaining dam, and the middle suspended section of the suspended hot wastewater discharge pipeline is limited and fixed using an elastic rubber rope tied with a stone block; Step 7: Use the air inlet tunnel to transport the voltage conversion equipment, distribution box and power storage equipment to the power cavern for installation and construction, and electrically connect the voltage conversion equipment to the hydropower equipment; Step 8: Transport the equipment cabinet and liquid heat exchanger to the bridge-type support platform through the air inlet tunnel and the air outlet tunnel for installation; Step 9: Construct supporting buildings, complete the construction of remaining facilities, and install and connect the remaining equipment.

[0017] A method for operating a low-carbon cavern-type data center based on cave layout, comprising the following steps: Step A, start the coolant circulation pump to circulate the coolant in the jacket on the outer wall of the equipment cabinet, the coolant cold pipe, the coolant heat pipe and the liquid heat exchanger; Step B, start the river water circulation pump, pump the river water in the dark river to the liquid heat exchanger to exchange heat with the coolant, the coolant that has completed the heat exchange in the liquid heat exchanger flows back to the jacket on the outer wall of the equipment cabinet to cool down and dissipate the heat of the equipment cabinet, and the river water that has completed the 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; Step C: When the air inside the cave needs to be changed, the axial flow fans in the air inlet tunnel and the air outlet tunnel are started, and the air inlet tunnel is used as the air inlet channel and the air outlet tunnel is used as the air exhaust channel.

[0018] The beneficial effects of the present invention are: 1. On the one hand, making full use of natural caves to build cave-type data centers reduces the amount of excavation of cave-type data centers, which can significantly reduce the construction cost of cave-type data centers; on the other hand, making full use of natural, cold underground river water to exchange heat with the coolant in the liquid heat exchanger, and ultimately achieving heat dissipation and cooling of IT equipment cabinets through the coolant, significantly reducing the operating cost of the cave-type data center.

[0019] 2. The river water in the underground river is transported to the liquid heat exchanger through the river water transport component. The river water exchanges heat with the coolant in the liquid heat exchanger. The coolant cooled by the river water is transported to the equipment cabinet through the coolant transport component to directly cool and dissipate the heat of the equipment cabinet. This direct temperature control method significantly improves the heat dissipation and cooling effect of the IT equipment cabinet.

[0020] 3. The hot river water that completes heat exchange with the coolant in the liquid heat exchanger is first discharged into the suspended hot wastewater discharge pipe through the river water heat pipe, and then discharged to the downstream of the dam through the suspended hot wastewater discharge pipe, so as to avoid directly discharging the hot river water into the dam reservoir area, which will cause the water temperature in the reservoir area to rise, so that the water in the reservoir area of ​​the dam can continue to maintain a low temperature, further ensuring the heat exchange effect between the underground river water and the coolant in the liquid heat exchanger.

[0021] 4. The hydroelectric power generation equipment installed in the hydroelectric power dam cooperates with the voltage conversion equipment, distribution box and power storage equipment in the power tunnel to provide the power required for the operation of the data center's electrical equipment, thereby 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 hydroelectric power generation 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 the voltage conversion equipment with power supply, further ensuring that the cave-type data center can operate continuously, safely and stably. In extreme cases where neither the hydroelectric power generation equipment nor the external power grid line can supply power to the data center's electrical equipment, it can also be powered by batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural layout diagram of the present invention along the horizontal direction of the underground river; Figure 2 This is a structural layout diagram of the present invention along the longitudinal direction of the underground river; Figure 3 for Figure 2 A local enlarged view at position I; Figure 4 A plan layout of the mountain, karst cave, underground river, surface water system, hydroelectric dam, water retaining dam, air inlet tunnel, air outlet tunnel, power cavern, road and supporting buildings of the present invention; Figure 5 It is a block diagram of the power supply principle of the hydroelectric power generation equipment of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention for changing the air in the cave; Figure 7 A trajectory map of data center staff entering and exiting the cave-type data center; In the figure: 1-mountain, 2-karst cave, 3-underground river, 4-surface water system, 5-hydroelectric dam, 51-flow channel, 52-hydroelectric equipment, 6-water retaining dam, 7-bridge support platform, 71-platform plate, 72-side truss support body, 73-middle arch support body, 74-side wall anchor rod, 8-air inlet tunnel, 9-air outlet tunnel, 10-equipment cabinet, 11-liquid heat exchanger, 111-coolant delivery assembly, 1 111-cooling liquid cooling pipe, 1112-cooling liquid heat pipe, 1113-cooling liquid circulation pump, 113-river water transport component, 1131-river water cooling pipe, 1132-river water heat pipe, 1133-river water circulation pump, 12-suspended hot wastewater discharge pipe, 13-elastic rubber rope, 14-power cavern, 141-voltage conversion equipment, 142-distribution box, 143-power storage equipment, 15-road, 16-supporting buildings. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0024] like Figures 1 to 7 As shown, a low-carbon cavern-type data center based on cave layout described in the present invention includes a mountain 1, in which an underground river 3 is developed, and the underground river 3 flows through a cave 2 in the mountain 1, and a bridge-type support platform 7 is provided in the 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, and the liquid heat exchanger 11 is connected to the equipment cabinet 10 through a coolant conveying component 111, and a river water conveying component 113 is connected to the liquid heat exchanger 11, and an end of the river water conveying component 113 away from the liquid heat exchanger 11 extends into the underground river 3.

[0025] When in use, the top surface elevation of the bridge-type support platform 7 is higher than the highest water level of the underground river 3, so as to prevent equipment such as the equipment cabinet 10 and the liquid heat exchanger 11 installed on the bridge-type support platform 7 from wading in water, thereby ensuring that these equipment can operate safely.

[0026] The river water in the underground river 3 is transported to the liquid heat exchanger 11 through the river water transport component 113, and the river water exchanges heat with the coolant in the liquid heat exchanger 11. The coolant cooled by the river water is transported to the equipment cabinet 10 through the coolant transport component 111, and the equipment cabinet 10 is directly cooled and dissipated. This direct temperature control method significantly improves the heat dissipation and cooling effect of the equipment cabinet 10. Compared with the method of using air to exchange heat with air in the prior art, the heat exchange efficiency is high by using river water and coolant, which 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 to dissipate heat and cool the equipment cabinet 10, which further reduces the operating energy consumption of the cave-type data center.

[0027] On the one hand, full use is made of the natural cave 2 to build the cave-type data center, which 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, full use is made of the natural, cold underground river 3 water to exchange heat with the coolant in the liquid heat exchanger 11, and finally the coolant is used to dissipate heat and cool the equipment cabinet 10, which significantly reduces the operating cost of the cave-type data center.

[0028] A jacket is provided on the outer wall of the equipment cabinet 10; The cooling liquid delivery component 111 includes 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 the jacket on the outer wall of the equipment cabinet 10 and the liquid heat exchanger 11, and a cooling liquid circulation pump 1113 is provided on the cooling liquid cooling pipe 1111.

[0029] The river water transport assembly 113 includes 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 to 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 the top of the underground river 3 or to the underground river 3, and this end is located downstream of the river water circulation pump 1133. The river water of the underground river 3 is pumped to the liquid heat exchanger 11 by the river water circulation pump 1133, 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; the heat exchange between the river water and the coolant in the liquid heat exchanger 11 is used to realize the effective use of natural resources and reduce the operating cost of the cave-type data center. In addition, the continuous flow of river water can continuously maintain a relatively low temperature, ensuring the heat exchange efficiency and heat exchange effect between the river water and the coolant, and further ensuring the coolant. It has heat dissipation and cooling effect on the IT equipment cabinet 10; the river water that completes heat exchange with the coolant in the liquid heat exchanger 11 is discharged into 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 hot water discharged from the river water heat pipe 1132 causing the river water temperature at the river water circulation pump 1133 to rise, thereby ensuring that the river water pumped into the liquid heat exchanger 11 continues to maintain a low temperature, thereby achieving the purpose of ensuring the heat exchange effect between the river water and the coolant in the liquid heat exchanger 11.

[0030] The bridge-type support platform 7 spans the underground river 3; 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; The support assembly 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 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. The two side truss support bodies 72 are correspondingly arranged on the rock masses of the 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 horizontal direction of the underground river 3. 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 through side wall anchor rods 74; The bridge-type supporting platform 7 is also provided with a ladder, the upper end of which is connected to the platform plate 71 , and the lower end of which extends to the bottom surface of the cave 2 .

[0031] When in use, the middle arch support 73 is a steel arch structure, and the side truss support 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 73 and two side truss supports 72, which ensures the support stability of the support component to the platform plate 71; in the horizontal direction of the underground river 3, the two ends of the platform plate 71 are connected to the side wall of the cave 2 through the side wall anchor rods 74, which can improve the installation stability of the platform plate 71, so as to form a stable and reliable equipment installation platform.

[0032] A ladder is installed on the bridge-type supporting platform 7 to facilitate workers to go up and down the platform plate 71.

[0033] A water dam 6 is provided on the downstream side of the bridge support platform 7 on the underground river 3. The height of the water dam 6 is 3 to 5 meters, and the top surface of the bridge support platform 7 is at least 3 meters higher than the top surface of the water dam 6. When in use, the water of the underground river 3 is cut off by the water dam 6 to ensure that there is sufficient water to exchange heat with the coolant in the liquid heat exchanger 11 all year round, further ensuring the cooling and heat dissipation effect of the coolant on the equipment cabinet 10. The top surface of the bridge support platform 7 is at least 3 meters higher than the top surface of the water 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 support platform 7 to the top surface of the cave 2 should meet the installation requirements of equipment cabinets 10 and liquid heat exchangers 11.

[0034] The underground river 3 is provided with a suspended hot wastewater discharge pipe 12, the downstream end of which 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. The hot river water discharged from 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 the direct discharge of the hot river water to the reservoir area of ​​the water retaining dam 6, which causes the water temperature in the reservoir area to rise, so that the water in the reservoir area of ​​the water retaining dam 6 can continue to maintain a relatively low temperature, further ensuring the heat exchange effect between the river water in the underground river 3 and the coolant in the liquid heat exchanger 11.

[0035] The bottom of the suspended hot wastewater discharge pipe 12 is connected to a plurality of elastic rubber ropes 13, and a stone is tied to one end of the elastic rubber rope 13 away from the suspended hot wastewater discharge pipe 12, and the stone sinks to the bottom of the underground river 3. When in use, the suspended hot wastewater discharge pipe 12 is made of light heat-resistant material, and its upstream end is anchored on the hydroelectric dam 5, and its downstream end is anchored on the water retaining dam 6. At the same time, the stability of the suspended hot wastewater discharge pipe 12 under the impact of water flow is improved by cooperating with the stone and the elastic rubber rope 13. When the water level is different, the distance from the suspended hot wastewater discharge pipe 12 to the riverbed of the underground river 3 will change, so the present invention uses an elastic rubber rope 13 that can be appropriately extended or shortened to connect the 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, and at the same time, the elasticity of the elastic rubber rope 13 can offset the kinetic energy of the water flow impacting the suspended hot wastewater discharge pipe 12.

[0036] The mountain 1 is provided with an electric power cavern 14, 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 .

[0037] When in use, the voltage conversion device 141 is a step-down transformer, and the power storage device 143 includes a rectifier, a battery, and an inverter. The electricity that has been stepped down by the step-down transformer is directly delivered to the distribution box 142 in one way to power the electrical equipment of the present invention, and is delivered to the rectifier in the other way, and is stored in the battery after being rectified by the rectifier. When the hydroelectric power generation equipment 52 has a short-term fault, or when the water volume of the dark river 3 is insufficient, resulting in the hydroelectric power generation equipment 52 The power generation is insufficient to maintain the operation of the cave-type data center, the direct current output of the battery is converted into alternating current by the inverter and then delivered to the distribution box 142 to power the electrical equipment of the present invention, ensuring the continuous, safe, and stable operation of the cave-type data center. Power distribution is carried out through the distribution box 142, and the distribution box 142 is electrically connected to each electrical equipment of the cave-type data center through a waterproof cable.

[0038] The underground river 3 is connected with the surface water system 4 outside the mountain 1 at the entrance of the cave 2. A hydroelectric dam 5 is provided on the underground river 3 at the entrance of the cave 2. The hydroelectric dam 5 closes the entrance of the cave 2 and is located on the upstream side of the bridge-type support platform 7. A water flow channel 51 connecting the upstream and downstream water bodies is provided in the hydroelectric dam 5, and a hydroelectric power generation device 52 is provided in the water flow channel 51. The hydroelectric power generation equipment 52 is electrically connected to the voltage conversion equipment 141 in the power cavern 14 via a waterproof cable. When in use, the high-level water of the surface water system 4 flows through the water channel 51 in the hydroelectric dam 5, and in the process drives the hydroelectric power generation equipment 52 to operate and generate electricity. The hydroelectric power generation equipment 52 includes a hydroelectric generator set and a step-up transformer, which steps up the voltage of the electricity output by the hydroelectric generator set. The step-up transformer is connected to the voltage conversion equipment 141 and the external power grid line through cables to realize power supply and transmission. In addition, if Figure 5 As shown, the voltage conversion device 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 power the voltage conversion device 141, further ensuring that the cave-type data center can operate continuously, safely and stably.

[0039] The priority order of power supply for the cavernous data center is: power supply from the hydroelectric power generation equipment 52, power supply from the external power grid line, and power supply from the battery.

[0040] 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 cave 2, and the other end is both connected to the outside of the mountain 1. The road elevations of the air inlet tunnel 8 and the air outlet tunnel 9 are consistent with the top elevation of the bridge-type support platform 7. The air inlet tunnel 8 and the air outlet tunnel 9 are used as inlet and outlet passages for staff and equipment, and as ventilation passages for cavern-type data centers. When in use, the power cavern 14 is arranged on one side of the air inlet tunnel 8 and is connected to the air inlet tunnel 8, so that the cable used to connect the external power grid line and the voltage conversion device 141 can be introduced into the power cavern 14 by using the air inlet tunnel 8.

[0041] The air inlet tunnel 8 is located on the upstream side of the bridge support platform 7, and the air outlet tunnel 9 is located on the downstream side of the bridge support platform 7. Axial flow fans are installed on the tops of the air inlet tunnel 8 and the air outlet tunnel 9. Figure 6 As shown, when the cave 2 is ventilated, the wind enters the cave 2 from the air inlet tunnel 8, then flows from the upstream end of the bridge-type support platform 7 to the downstream end thereof, and finally is discharged from the air outlet tunnel 9 to the outside of the mountain 1. Axial flow fans are installed on the top of the air inlet tunnel 8 and the air outlet tunnel 9, which can guide the wind to flow in the cave-type data center and achieve the purpose of improving the ventilation efficiency of the cave 2.

[0042] 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 arranged on one side of the road 15 and close to the road 15. The supporting buildings 16 include dormitories, canteens, etc.

[0043] A construction method of a low-carbon cavern-type data center based on cave layout, characterized in that it includes the following steps: 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Step 4: After the construction of the water retaining dam 6 is completed, the bridge-type support platform 7 is constructed.

[0048] 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.

[0049] 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.

[0050] 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 .

[0051] Step eight: 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.

[0052] Step nine: construct supporting buildings 16, and complete the construction of remaining facilities, and the installation and connection of remaining equipment.

[0053] A method for operating a low-carbon cavern-type data center based on cave layout, comprising the following steps: 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; 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 the air inside the cave 2 needs to be changed, the axial flow fans in the air inlet tunnel 8 and the air outlet tunnel 9 are started, and the air inlet tunnel 8 is used as the air inlet channel and the air outlet tunnel 9 is used as the air 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).

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: A water retaining dam (6) is provided on the underground river (3) at the downstream side of the bridge-type support platform (7); the 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).

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 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); 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 6 is characterized by: 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).

9. The low-carbon cavern-type data center based on cave layout according to claim 8 is characterized by: 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).

10. The low-carbon cavern-type data center based on cave layout according to claim 8 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).

11. A construction method for a low-carbon cavern-type data center based on cave layout according to any one of claims 1 to 10, 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.

12. An operating method of a low-carbon cavern-type data center based on cave layout according to any one of claims 1 to 10, 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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