Photovoltaic-driven IDC electric cooling linkage method and device

Abstract

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

Description

Technical Field

[0001] This invention belongs to the field of IDC electric cooling linkage technology, specifically relating to a photovoltaic-driven IDC electric cooling linkage method and device. Background Technology

[0002] Existing advanced data centers (IDCs) are generally built underwater or in caves, primarily to utilize natural cooling sources and minimize energy consumption for cooling generation, aiming for a Power Usage Effectiveness (PUE) as close to 1 as possible. Due to the lack of water and natural cooling sources, traditional deserts are not considered ideal locations for IDCs. However, some IDC construction projects have commenced in desert regions, mainly based on policy planning, land costs, and energy prices. Common technologies adapted to desert environments include "dry mode" cooling systems (zero water consumption) and evaporative cooling that utilizes the dry desert air and diurnal temperature variations.

[0003] Therefore, this invention proposes an underground IDC building and a linkage method, with the scenario pre-set as a desert surface environment and underground waste oil or mineral layers, to create a highly autonomous energy system. Summary of the Invention

[0004] To address the above problems, this invention proposes a photovoltaic-driven IDC (Internet Data Center) power cooling linkage method and device.

[0005] The technical solution of this invention is: a photovoltaic-driven IDC (Internet Data Center) power-cooling linkage method, comprising the following steps:

[0006] S1. Construct a gravity-based energy storage structure;

[0007] S2. Use a gravity energy storage structure to lift the gravity object to the highest point of the gravity object channel;

[0008] S3. When the output of the photovoltaic system is 0, control the gravity object to descend, compress the air at the bottom of the gravity object channel a second time, and cause a thermal decomposition reaction.

[0009] S4. The air after secondary compression is injected into the gas engine chamber, the pyrolysis gas produced by the pyrolysis reaction is diverted, and it is mixed with natural gas and ambient air for combustion. The combustion products are discharged into the gas storage chamber.

[0010] S5. After the thermal decomposition reaction of the gravity object is completed, the hot water in the heat cooler is heated, and the waste heat of the steam generated drives the turbine in the turbine room to do work and generate electricity.

[0011] S6. The exhaust waste heat of the gas turbine room is used to prepare domestic hot water and nighttime heating hot water. Convection heat exchange is carried out, and the low-temperature water after heat exchange is heated into high-temperature steam in the cooler. After entering the turbine, it becomes high-temperature water and flows into the control center or water storage tank.

[0012] Furthermore, in S1, the waste is compressed into blocks to serve as filler for the gravity storage structure.

[0013] Furthermore, in S2, energy output from photovoltaics and steam turbines is used to lift the gravitational object; the time period of energy output... The expression is:

[0014] ;

[0015] in, Indicates the starting time of the lift. Indicates the point in time when the lifting process ended;

[0016] Lifting start time point satisfy ; End time of the lift satisfy ;in, Indicates the real-time output of the photovoltaic system. This indicates the real-time output of the steam turbine. This indicates the real-time power load of the IDC data center.

[0017] Furthermore, in S3, the control commands for the photovoltaic system The expression is:

[0018] ;

[0019] in, This indicates the amount of electricity output from the photovoltaic bus to the system inverter. This indicates the amount of electricity output by the photovoltaic bus to the system's DC power supply.

[0020] Furthermore, in S3, the gravity object is controlled to descend to the lowest point of the gravity object channel, and the air at the bottom of the gravity object channel is compressed for the first time to form a high temperature and high pressure environment, and trigger the waste in the gravity object to undergo a thermal decomposition reaction to produce thermal decomposition gas; the air after the first compression is discharged into the gas storage chamber, and when the photovoltaic output is greater than the set threshold, the gas in the gas storage chamber is compressed a second time to more than 7MPa by an electric compressor, so that the liquid mixture in the gas flows into the underground waste mineral layer through the drilling channel.

[0021] Furthermore, the gas storage chamber comprises several gas storage units.

[0022] Furthermore, in S5, after the gravity thermal decomposition reaction is completed, when the gravity rises to the elevation, it is cooled by a cooler. The gravity is used as a high-temperature heat source to heat the hot water in the cooler, and the generated steam waste heat drives the turbine in the turbine room to do work and generate electricity.

[0023] Based on the above methods, the present invention also proposes a photovoltaic-driven IDC electric cooling linkage device, which includes a gravity object, a control center, an IDC data center, a cooler, a gravity object channel, a gas storage chamber, and a drilling channel arranged from top to bottom;

[0024] The gas chamber's intake pipe and turbine exhaust pipe are connected to the gas storage chamber respectively; the turbine chamber is located below the gas chamber; the lower water storage tank is located below the turbine chamber; the upper water storage tank is located above the horizon; triboelectric nanogenerators are attached to the contact surfaces between the control center and the road and gravity passage; a photovoltaic system is used for power supply.

[0025] Furthermore, the controller is used to distribute the DC power of the photovoltaic system into two paths. One path is used to lift the gravity object, drive the gas storage chamber, and supply the gas turbine chamber. The other path is used to drive the IDC data center and charge the energy storage batteries in the control center.

[0026] The beneficial effects of this invention are:

[0027] (1) The present invention uses organic compressed waste as gravity storage material. This combination spreads the cost of specially building gravity materials or waste disposal, and allows the gravity storage process to produce high-value products such as heavy oil, solid fuel and adsorbent.

[0028] (2) The present invention takes into account that gravity energy storage is not used for power generation, but is directly used for the first stage of compressed air energy storage, which reduces the energy loss of energy storage conversion. It is equivalent to saving energy consumption for the first stage of compressed air energy storage, and the heat of compression is used for the thermal pyrolysis treatment of waste.

[0029] (3) In this invention, the two-stage compression energy storage process of compressed air mixed with gas turbine exhaust naturally and incidentally realizes the separation and pressurized deep burial of carbon dioxide, which saves a lot of energy and cost compared with the separate pressurized deep burial of carbon dioxide.

[0030] (4) In this invention, compressed air does not pass through the turbine to do work, but directly enters the combustion chamber of the gas turbine, which is equivalent to saving the gas turbine 50%-60% of its energy-consuming compressor part. This maximizes the utilization of compressed oxygen. Compared with generating electricity by compressing air alone, it not only uses the pressure of compressed air, but also its components, and at the same time consumes the pyrolysis gas generated by waste. The whole process cleverly helps large-capacity photovoltaic systems achieve peak shaving and valley filling. Attached Figure Description

[0031] Figure 1 A flowchart of a photovoltaic-driven IDC power-cooling linkage method;

[0032] Figure 2 This is a schematic diagram of a photovoltaic-driven IDC (Internet Data Center) electric cooling linkage device.

[0033] Figure 3 This is a scaled-down overview of the system.

[0034] Figure 4 Construct a side sectional view for the main body;

[0035] Among them, 1. IDC data center; 2. Gravity object; 3. Gravity object channel; 4. Gas storage room; 5. Cooler; 6. Drilling channel; 7. Gas chamber; 8. Turbine room; 9-1. Upper water storage tank; 9-2. Lower water storage tank; 10. Control center; 11. Road; 12. Photovoltaic system. Detailed Implementation

[0036] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] like Figure 1 As shown, this invention provides a photovoltaic-driven IDC (Internet Data Center) power-cooling linkage method, comprising the following steps:

[0038] S1. Construct a gravity-based energy storage structure;

[0039] S2. Use a gravity energy storage structure to lift the gravity object to the highest point of the gravity object channel;

[0040] S3. When the output of the photovoltaic system is 0, control the gravity object to descend, compress the air at the bottom of the gravity object channel a second time, and cause a thermal decomposition reaction.

[0041] S4. The air after secondary compression is injected into the gas engine chamber, the pyrolysis gas produced by the pyrolysis reaction is diverted, and it is mixed with natural gas and ambient air for combustion. The combustion products are discharged into the gas storage chamber.

[0042] S5. After the thermal decomposition reaction of the gravity object is completed, the hot water in the heat cooler is heated, and the waste heat of the steam generated drives the turbine in the turbine room to do work and generate electricity.

[0043] S6. The exhaust waste heat of the gas turbine room is used to prepare domestic hot water and nighttime heating hot water. Convection heat exchange is carried out, and the low-temperature water after heat exchange is heated into high-temperature steam in the cooler. After entering the turbine, it becomes high-temperature water and flows into the control center or water storage tank.

[0044] In this embodiment of the invention, in S1, the waste is compressed into blocks and used as filler for the gravity in the gravity energy storage structure.

[0045] In this embodiment of the invention, in S2, the energy output from photovoltaics and steam turbines is used to lift the gravitational object; the time period of energy output... The expression is:

[0046] ;

[0047] in, Indicates the starting time of the lift. Indicates the point in time when the lifting process ended;

[0048] Lifting start time point satisfy ; End time of the lift satisfy ;in, Indicates the real-time output of the photovoltaic system. This indicates the real-time output of the steam turbine. This indicates the real-time power load of the IDC data center.

[0049] In this embodiment of the invention, in S3, the control command of the photovoltaic system The expression is:

[0050] ;

[0051] in, This indicates the amount of electricity output from the photovoltaic bus to the system inverter. This indicates the amount of electricity output by the photovoltaic bus to the system's DC power supply.

[0052] The photovoltaic bus supplies power to the system inverter. The DC-to-AC converter provides power to the system's high-power motors, compressors, and other components.

[0053] It is the power output from the photovoltaic bus to the system's DC power supply (energy storage battery), and drives the IDC DC equipment through the DC / DC converter.

[0054] In this embodiment of the invention, in S3, the gravity object is controlled to descend to the lowest point of the gravity object channel, and the air at the bottom of the gravity object channel is compressed for the first time to form a high temperature and high pressure environment, and trigger the waste in the gravity object to undergo a thermal decomposition reaction to generate thermal decomposition gas; the air after the first compression is discharged into the gas storage chamber, and when the photovoltaic output is greater than the set threshold, the gas in the gas storage chamber is compressed a second time to more than 7MPa by an electric compressor, so that the liquid mixture in the gas flows into the underground waste mineral layer through the drilling channel.

[0055] In this embodiment of the invention, the gas storage chamber includes several gas storage units.

[0056] In this embodiment of the invention, in S5, after the gravity thermal decomposition reaction is completed, when the gravity rises to the elevation, it is cooled by a cooler. The gravity is used as a high-temperature heat source to heat the hot water in the cooler, and the generated steam waste heat drives the turbine in the turbine room to do work and generate electricity.

[0057] In this embodiment of the invention, waste is compressed into blocks with an average density of 1 t / m³, which serve as the filling material for the gravity storage structure. The gravity structure is equivalent to a cylindrical body with a base area of ​​2000 m² and a height of 25 m. When fully filled with these blocks, the total weight is approximately 50,000 tons. The total height of the gravity channel is 150 m, with 30 m extending above the ground. The upper part of the channel is open to the atmosphere, while the lower part is sealed but has a first vent that can be controlled to open and close.

[0058] The height of the above-ground section can be adjusted to facilitate the unloading and disposal of garbage blocks by garbage trucks. Once filled with gravity, the system is self-sealing. The lifting speed can be controlled by a motor, and a second vent at the top can be controlled to open and close.

[0059] The energy for lifting the object under normal operating conditions is entirely output from photovoltaic and steam turbines, and the output time period is from... Decide.

[0060] At that time, the gravity object is adjusted to the optimal starting position—the highest point of the channel travel (25 meters above the upper edge of the gravity object).

[0061] When the photovoltaic output drops to zero due to nightfall, the object descends, compressing the sealed air below. It continues to descend until it reaches the lowest point of the channel (approximately -80 meters above the top of the object), achieving force equilibrium. At this point, the high-pressure, high-temperature air below causes the waste to undergo a thermal decomposition reaction. The main reaction equations are as follows:

[0062] (C6H 10 O5) n → Tar (containing acids, alcohols, aldehydes, etc.) + coke + H2O + CO2 + small amount of gas;

[0063] (C6H 10 O5) n →Main products: H2+CO+CH4+CO2+coke;

[0064] [CH2-CH2] n →C m H 2m ₊2(alkane, such as methane, paraffin oil) + C m H 2m (olefins, such as ethylene and propylene);

[0065] [C5H8] n →Liquid fuels (isoprene, limonene, etc.) + CH4 + C2H4 + ... + carbon black;

[0066] The generated pyrolysis gas is naturally drawn into the gas turbine combustion chamber through the second vent hole under the injection of a high-pressure jet.

[0067] The pre-compressed air is naturally discharged into the gas storage chamber through the second vent. The gas storage chamber is circumferentially distributed at the bottom of the channel and divided into 6 independent gas storage units. Gas turbine exhaust (if any) is pre-discharged, and one heavy-load compression exhaust process occupies one gas storage unit (a mixture of O2, N2, H2O, CO2, and NOx).

[0068] During peak photovoltaic power output in the daytime, the gas inside the storage unit is compressed to over 7 MPa by an electric compressor. At this time, a liquid mixture of H2O, CO2, and NOx flows from the abandoned mine entrance into underground fissures under high pressure.

[0069] The compressed air is injected at high speed into the gas turbine combustion chamber at night, where it mixes with pyrolysis gas, natural gas, and ambient air under low pressure for combustion. The chemical reactions that occur are as follows:

[0070] 2H₂ + O₂ → 2H₂O;

[0071] 2CO + O2 → 2CO2;

[0072] CH4 + 2O2 → CO2 + 2H2O;

[0073] C2H6 + 7O2 → 4CO2 + 6H2O;

[0074] The reaction products are mainly a mixture of H2O and CO2, which are discharged into the gas storage chamber after being restored from compressed conditions to normal atmospheric pressure. (Gas turbine output time period) .

[0075] After the reaction is complete, based on the working rules, the object can only continue to rise after being cooled by the cooler during the ascent (upper edge of the object at an elevation of -25m).

[0076] The gravity object acts as a high-temperature heat source, heating the hot water in the cooler. The waste heat from the steam drives the turbine to do work. After being heated, the cooler water is cooled by the surrounding constant low-temperature wall environment and then recycled.

[0077] Waste heat from exhaust gas is used as a low-temperature heat source to provide domestic hot water and nighttime heating water. After use, it becomes low-temperature greywater. , .

[0078] As the object rises, the air pressure at the bottom decreases. Opening the first vent allows outside air to be drawn in and replenished at the bottom of the object until it returns to its highest point in the passage.

[0079] The heavy oil, solid fuel, and adsorbent obtained from the reaction are loaded onto garbage trucks and transported away.

[0080] The photovoltaic system automatically adjusts the DC / AC ratio. The main controller of the photovoltaic system is responsible for receiving the feedback signal R and outputting control commands CI. .

[0081] The data center has an equivalent cylindrical area of ​​4000㎡ and a height of 10m. The ceiling is at an elevation of -1.5m.

[0082] The ceiling has a 0.5m thick vacuum insulation layer covered with reflective material to isolate it from the heat conduction and heat radiation of the environment.

[0083] During the day, the gravity-fed object is usually suspended at a high position, and the air inside the channel, after expanding and cooling at the bottom, exchanges heat with the IDC environment; at the same time, the gravity-fed object plays a significant role in heat storage, reducing heat transfer from top to bottom. At night, the gravity-fed object sinks to the bottom, and the cold, dry desert air above exchanges heat with the IDC environment.

[0084] This causes the server chips in the data center to generate heat. This causes the chip temperature to rise. The chip temperature decreases as the thermally conductive material contacts the liquid cooling plate, which, driven by a pump, undergoes forced convection heat exchange with the coolant. coolant temperature rises .

[0085] heated coolant The coolant flows from the manifold to the coolant distribution unit (CDU), where it undergoes indirect heat exchange via a plate heat exchanger.

[0086] Hot end: heated coolant .

[0087] Cold end: low temperature medium water , .

[0088] The heat load may fluctuate, preventing the greywater temperature from decreasing to the required level. Let us refer to the following as Then, the low-temperature water in the storage room is used to lower it to [a certain temperature]. The low-temperature water in the water storage room is obtained by convective heat exchange with the low-temperature, dry air in the desert at night.

[0089] Based on the above methods, this invention also proposes a photovoltaic-driven IDC (Internet Data Center) electric cooling linkage device, such as... Figure 2 As shown, it includes, from top to bottom, a gravity structure 2, a control center 10, an IDC data center 1, a cooler 5, a gravity channel 3, a gas storage chamber 4, and a drilling channel 6;

[0090] The intake pipe and exhaust pipe of the gas chamber 7 are connected to the gas storage chamber 4 respectively; the turbine chamber 8 is located below the gas chamber 7; the lower water storage tank 9-2 is located below the turbine chamber 8; the upper water storage tank 9-1 is located above the horizon; the contact surface between the control center 10 and the road 11 and the gravity channel 3 is covered with a triboelectric nanogenerator; the photovoltaic system 12 is used for power supply.

[0091] In this embodiment of the invention, the controller 9 is used to distribute the DC power of the photovoltaic system 11 into two paths. One path of DC power is used to lift the gravity object 2, drive the gas storage chamber 4, and supply the gas turbine chamber 7. The other path of DC power is used to drive the IDC data center 1 and charge the energy storage battery of the control center 9.

[0092] In this embodiment of the invention, in IDC data center 1, the key geometric parameter is: the inner diameter of the annulus. Height of the toroid Equivalent floor area Key electrical parameters: average power consumption Key thermal parameters: Allowable temperature rise of the chip Coolant circulation flow rate .

[0093] The initial settings of this invention are as follows Let's expand the calculations. Assuming an average power consumption of 10kW per rack, a total load of 10MW corresponds to 1000 racks, requiring approximately 4000m² of space (including aisle and maintenance space). Therefore, we take... , Cylinder height It takes into account both the cabinet installation and the top heat exchange space.

[0094] In Gravity Object 2, the key geometric parameter is the base area of ​​the cylinder. (equivalent diameter) ),high Effective volume Key mass parameter: Gross weight at full load (fill density) Key motion parameters: range of motion Rated lifting speed Key thermal parameter: pyrolysis gas discharge flow rate (Effective flow area of ​​top vent) ).

[0095] The gravity-fill design uses compressed organic waste blocks with a high density. Effective volume Therefore, the total mass of the fully loaded object is... Itinerary range Upper endpoint elevation Lower endpoint elevation It is sealed to the inner diameter of the channel and can be vertically driven by a motor or locked at a certain height. The bottom area is about 2000㎡; the height is 25 meters, and the full load weight is about 50,000 tons.

[0096] In Gravity physics 3, the key geometric parameter is the inner diameter of the cylinder. Total height Height of the above-ground portion Effective flow area of ​​bottom and side vent holes .

[0097] The overall dimensions are designed based on a capacity of approximately 15MWh of potential energy change per cycle. The passageway is open to the atmosphere at the top and sealed at the bottom; there is a buffer height of about 5 meters at the top. The bottom is designed with a high gas compression height. Approximately 40m; therefore, Inner diameter of the channel outer diameter of gravity object 2 Matching ensures a sliding seal.

[0098] In gas storage chamber 4, the key geometric parameter is the inner diameter of the annulus. ,high Number of independent chambers Single-cavity volume Key thermal parameters: gas storage pressure initial temperature .

[0099] The centerline of the gas storage chamber is located at an elevation of -105 meters, surrounding the passageway [C]; =6, chamber size equal; designed to support gas turbine continuous operation for more than 5 hours, single chamber volume This constrains the diameter of the gas storage chamber. ,high Gas storage pressure , 4 The pressure range is determined by the liquefaction conditions of CO2.

[0100] In cooler 5, the key geometric parameter is the inner diameter of the annulus. ,high Key thermal parameters: heat exchange power (Cooling water circulation flow rate) ).

[0101] Heat exchange power This determines the inner diameter of the annulus. , .

[0102] In borehole 6, the key geometric parameter is depth. Interface diameter .

[0103] The upper end of the duct connects to the drain outlet of gas storage chamber 4, and the lower part connects to the depth of... Abandoned mineral layers.

[0104] In the gas engine compartment 7, key geometric parameters include: cuboid dimensions. Key equipment parameters: Gas turbine power generation capacity .

[0105] The rated power output of the gas turbine generator is designed to be... ;according to The size of the gas turbine should be determined with reference to relevant specifications. , The above-ground portion is 5m high, and the underground portion is 10m deep. The gas turbine combustion chamber intake pipe and turbine exhaust pipe are connected to gas storage chamber 4 respectively. Simultaneously, an external natural gas pipeline is connected, allowing it to mix with outside air to ensure continuous and stable operation of the backup power supply.

[0106] Turbine Chamber 8, Key Geometric Parameters: Cuboid Dimensions Key equipment parameters: turbine power generation capacity .

[0107] Turbine Chamber Setting Dimensions This layout accommodates a small to medium-sized steam turbine generator set and auxiliary equipment, and is vertically located below the gas turbine room 7 (for ease of engineering operations). Waste heat steam parameters are estimated based on the cooler [E] outlet water temperature. .

[0108] Key geometric parameters for upper reservoir 9-1 and lower reservoir 9-2: dimensions of the cuboid reservoirs. (Water storage capacity) Key thermal parameters: Temperature drop of upper water storage tank 9-1 Heat exchange capacity of lower water storage tank 9-2 .

[0109] The lower reservoir 9-2 is vertically located below the turbine room 8; the upper reservoir is as follows: Figure 2 As shown, it is located above the horizon. Single pool size. Single pool water storage capacity The upper pool utilizes the convection cooling of dry, cold air from the desert at night, while the lower pool obtains a stable low temperature (approximately 15°C) through burial to meet the circulating water flow requirements of the cooler. Depending on the specific geological conditions during construction, introducing groundwater as a flowing cold source is optimal.

[0110] In Control Center 10, the key geometric parameter is the outer diameter of the annulus. ,high Key electrical parameters: Total electrochemical energy storage capacity Triboelectric nano-power generation installed area .

[0111] Control Center 10 is located above IDC Data Center 1, with the inner and outer diameters of the circular ring being the same. The underground height is 1.5m, and the above-ground height is 5m (to facilitate alignment with all above-ground buildings and provide natural support for the photovoltaic system). The system's control center supports the daily operations of staff. Electrochemical energy storage containers are mounted on the inner and outer walls of the circular structure, with a designed total capacity... The control center has triboelectric nanogenerators attached to the contact surfaces with road 11 and gravity channel 3. These generators can absorb the pressure vibrations from the upper road and the vibrations from the side wall channels and convert them into electrical energy for storage.

[0112] In Road 11, the key geometric parameter is width. ,length Key transportation parameters: Maximum daily waste processing capacity Maximum daily raw material output .

[0113] width It can accommodate two heavy-duty trucks running side-by-side. The transport vehicles take in compressed waste, which is mainly composed of organic matter, and take out raw materials such as heavy oil, solid fuel, adsorbents, and paving ash.

[0114] In photovoltaic system 12, key geometric parameters include: footprint. Key electrical parameters: Rated power .

[0115] Photovoltaic design rated power Therefore, the area of ​​land occupied can be estimated. The erection height is 5m.

[0116] The overall proportions of the system are as follows Figure 3 As shown, the main structure side sectional view is as follows. Figure 4 As shown.

[0117] The various modules of the device system are tightly coupled through energy and material flows to achieve the triple goals of low-carbon energy supply for the data center, waste resource utilization, and negative CO2 emissions. The collaborative relationships between the component modules include energy flow, material flow, information flow, and other environmental effects.

[0118] The DC power generated by the photovoltaic system 12 is distributed into two paths by the intelligent controller in the control center 10: one path powers a high-power motor via an inverter to lift the gravity object 2; or powers a compressor for secondary compression, acting on the gas storage chamber 4; and supplies some auxiliary equipment of the gas turbine, located in the gas chamber 7. The other path drives the IDC server and cooling pump via a DC / DC converter, located in the IDC data center 1; and simultaneously charges the energy storage battery in the control center 10.

[0119] Gravity energy storage and release specifically refer to:

[0120] When the photovoltaic system 12 has excess output during the day, the control center 10 starts the motor to lift the gravity object 2 to the top of the gravity object channel 3, converting electrical energy into gravitational potential energy.

[0121] At night, the photovoltaic system 12 returns to zero, the gravity object 2 descends in a controlled manner, compressing the air at the bottom of the gravity object channel 3, generating a high-temperature and high-pressure environment that triggers the thermal decomposition of the waste; the compressed air is discharged into the gas storage chamber 4, completing the first-stage compressed energy storage.

[0122] The specific methods for the cascade utilization of waste heat are as follows:

[0123] During the descent of the gravity object 2, the high-temperature air at the bottom exchanges heat through the cooler 5, generating steam to drive the turbine to generate electricity as an auxiliary power source.

[0124] Secondary compressed air is injected at high speed into the gas turbine combustion chamber (located in the gas chamber 7) in the gas storage chamber 4 at night, driving the generator as the main power source for IDC data center 1 and control center 10 at night.

[0125] The exhaust waste heat from the gas turbine in the gas turbine room 7 is used to prepare domestic hot water and heating. The low-temperature water after heat exchange selectively enters the upper water storage tank 9-1 and acts on the cold end of the IDC cooling system (linked with the lower water storage tank 9-2).

[0126] Waste input and transformation specifically include:

[0127] Road 11 transports urban compressed waste (density 1t / m³) and unloads it into the internal cavity of gravity object 2.

[0128] During the descent and compression of gravity object 2, the high-temperature air (≥400℃) at the bottom of the channel causes the waste in gravity object 2 to undergo thermal decomposition, producing tar, coke, and thermal decomposition gas (H2, CO, CH4, etc.).

[0129] The pyrolysis gas is drawn into the gas turbine combustion chamber (located in the gas engine chamber 7) under negative pressure through the vent hole on gravity object 2, and the exhaust gas (rich in CO2 and H2O) is discharged into the cavity of gas storage chamber 4. Solid products such as tar and coke are transported out by the original transport vehicle as gravity object 2 rises.

[0130] Air compression and carbon sequestration specifically refer to:

[0131] As the gravity object descends, the air (O2, N2) at the bottom of the gravity object channel 3 enters the independent chamber of the gas storage chamber 4 through the air vent.

[0132] The electric compressor compresses the gas in the gas storage chamber 4 (including the exhaust gas from the gas engine chamber 7) to a pressure of over 7 MPa. CO2 and H2O are liquefied under high pressure and injected into the underground abandoned mineral layer fissures along with SOx, NOx, etc. through the borehole channel 6 to achieve permanent sealing.

[0133] The working fluid cycle of the thermal system is as follows:

[0134] The heat from the IDC server (located in IDC data center 1) is transferred to the coolant through liquid cooling plates. The heated coolant then exchanges heat with low-temperature water from control center 10 or a water storage tank through a heat exchanger.

[0135] After heat exchange, the low-temperature water is heated into high-temperature steam in cooler 5, and then enters the turbine (located in turbine chamber 8) and becomes high-temperature water, flowing into control center 10 or water storage tank.

[0136] Important data collected in real time by the control center 10 includes, but is not limited to: 1) Photovoltaic output (from photovoltaic system 12); 2) IDC load (from IDC data center 1); 3) Turbine and gas turbine output (from turbine room 8 and gas turbine room 7, respectively); 4) Gravity object position and gas storage chamber pressure (from gravity object channel 3 and gas storage chamber 4, respectively); 5) Energy storage battery SOC (from control center 10).

[0137] The important decision outputs of the control center 10 include, but are not limited to: 1) gravity object lifting start and stop and speed (pointing to gravity object 2); 2) gas storage chamber compression / release sequence (pointing to gas storage chamber 4); 3) gas turbine ignition / shutdown (pointing to gas turbine room 7); 4) photovoltaic DC bus DC / AC power flow ratio (pointing to photovoltaic system 12); 5) energy storage charging and discharging power (pointing to control center 10).

[0138] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A photovoltaic-driven IDC (Internet Data Center) power-cooling linkage method, comprising the following steps: S1. Construct a gravity energy storage structure; S2. Use a gravity energy storage structure to lift the gravity object to the highest point of the gravity object channel; S3. When the output of the photovoltaic system is 0, control the gravity object to descend, compress the air at the bottom of the gravity object channel a second time, and cause a thermal decomposition reaction. S4. The air after secondary compression is injected into the gas engine chamber, the pyrolysis gas produced by the pyrolysis reaction is diverted, and it is mixed with natural gas and ambient air for combustion. The combustion products are discharged into the gas storage chamber. S5. After the thermal decomposition reaction of the gravity object is completed, the hot water in the heat cooler is heated, and the waste heat of the steam generated drives the turbine in the turbine room to do work and generate electricity. S6. The exhaust waste heat of the gas turbine room is used to prepare domestic hot water and nighttime heating hot water. Convection heat exchange is carried out, and the low-temperature water after heat exchange is heated into high-temperature steam in the cooler. After entering the turbine, it becomes high-temperature water and flows into the control center or water storage tank.

2. The photovoltaic-driven IDC power-cooling linkage method according to claim 1, characterized in that, In step S1, the waste is compressed into blocks to serve as filler for the gravity storage structure.

3. The photovoltaic-driven IDC power-cooling linkage method according to claim 1, characterized in that, In step S2, energy output from photovoltaics and steam turbines is used to lift the gravitational object; the time period for energy output... The expression is: ； in, Indicates the starting time of the lift. Indicates the point in time when the lifting process ended; The lifting start time point satisfy The time point at which the lifting ends; satisfy ;in, Indicates the real-time output of the photovoltaic system. This indicates the real-time output of the steam turbine. This indicates the real-time power load of the IDC data center.

4. The photovoltaic-driven IDC power-cooling linkage method according to claim 1, characterized in that, In S3, the control commands for the photovoltaic system The expression is: ； in, This indicates the amount of electricity output from the photovoltaic bus to the system inverter. This indicates the amount of electricity output by the photovoltaic bus to the system's DC power supply.

5. The photovoltaic-driven IDC power-cooling linkage method according to claim 1, characterized in that, In step S3, the gravity object is controlled to descend to the lowest point of the gravity object channel, and the air at the bottom of the gravity object channel is compressed for the first time to form a high temperature and high pressure environment, and trigger the waste in the gravity object to undergo a thermal decomposition reaction to generate thermal decomposition gas. The compressed air is discharged into the gas storage chamber, and when the photovoltaic output is greater than the set threshold, the gas in the gas storage chamber is compressed a second time to more than 7MPa by an electric compressor, so that the liquid mixture in the gas flows into the underground waste mineral layer through the drilling channel.

6. The photovoltaic-driven IDC power-cooling linkage method according to claim 5, characterized in that, The gas storage chamber includes several gas storage units.

7. The photovoltaic-driven IDC power-cooling linkage method according to claim 1, characterized in that, In S5, after the gravity thermal decomposition reaction is completed, when the gravity rises to the elevation, it is cooled by a cooler. The gravity is used as a high-temperature heat source to heat the hot water in the cooler, and the generated steam waste heat drives the turbine in the turbine room to do work and generate electricity.

8. A photovoltaic-driven IDC (Internet Data Center) electric cooling linkage device, characterized in that, The structure includes, from top to bottom, a gravity structure (2), a control center (10), an IDC data center (1), a cooler (5), a gravity channel (3), a gas storage chamber (4), and a drilling channel (6). The intake pipe and turbine exhaust pipe of the gas chamber (7) are respectively connected to the gas storage chamber (4); the turbine chamber (8) is located below the gas chamber (7); the lower water storage tank (9-2) is located below the turbine chamber (8); the upper water storage tank (9-1) is located above the horizon; the contact surface between the control center (10) and the road (11) and the gravity channel (3) is attached with a triboelectric nanogenerator; the photovoltaic system (12) is used for power supply.

9. The IDC electric cooling linkage device according to claim 8, characterized in that, The controller (9) is used to distribute the DC power of the photovoltaic system (12) into two paths, one of which is used to lift the gravity object (2), drive the gas storage chamber (4) and supply the gas turbine chamber (7), and the other is used to drive the IDC data center (1) and charge the energy storage battery of the control center (10).

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