LNG (Liquefied Natural Gas), biomass power plant and data center energy collaborative utilization system
By developing a collaborative energy utilization system for LNG, biomass power plants and data centers, the problems of large energy loss and resource consumption in biomass power plants, data centers and LNG systems are solved, and the collaborative utilization of hot and cold energy and efficient resource circulation are realized.
Patent Information
- Application Number
- CN202411886703.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-21
AI Technical Summary
Biomass power plants, data centers and LNG systems have problems with large energy losses and resource consumption, and the existing technology cannot effectively utilize hot and hot energy resources in a coordinated manner.
Develop a collaborative energy utilization system for LNG, biomass power plants and data centers. Through the cold energy of the LNG system, the cooling energy of the biomass power plants and data centers is provided, and the thermal energy of the biomass power plants and data centers is recycled to the LNG system. At the same time, the green electricity and thermal energy generated by the biomass power plants are used to reuse the recycled water into the data center and the LNG system.
It has realized the coordinated utilization of energy between LNG, biomass power plants and data centers, reduced their respective energy consumption and resource waste, improved energy utilization, and wasted in line with the concept of green, environmentally friendly and low-carbon development.
Smart Images
Figure CN119665206A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of cold and heat source utilization, and more specifically, to a system for coordinated utilization of energy among LNG, biomass power plants, and data centers. Background Art
[0002] In order to promote the supply of green energy, resource recycling and utilization of waste heat and waste cooling, improve energy utilization, reduce fossil energy consumption, help "carbon peak" and "carbon neutrality", promote the advantages of coordinated utilization of factory energy, and provide a new track for factory energy conservation and consumption reduction. At present, biomass power plants mostly use circulating cooling water for cooling, dissipating heat to nature, resulting in resource waste. Data centers use electric cooling to consume a lot of electricity, and heat is dissipated to nature through cooling towers, which also causes resource waste. LNG gasification mostly uses natural gas combustion to generate heat energy, which consumes a lot of energy. All three have problems such as energy loss and large resource consumption. Therefore, in view of the current status of the existing process, the biomass power plant, data center and LNG system are reshaped to provide cold, hot and electric energy to all parties while solving their own cooling and heating problems. For this purpose, a new system is developed to make coordinated use of LNG cold energy, biomass power plant heat and electricity, and data center heat. This system can provide green electricity for LNG system heating and data center, as well as cooling for biomass power plants and data centers, saving their respective energy consumption and energy loss, and seeking a new way for LNG process heating, biomass power plant cooling, and data center electricity and cooling. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide a system for the coordinated utilization of energy among LNG, biomass power plants and data centers, so as to solve the problems that currently biomass power plants mostly use circulating cooling water for cooling, dissipating heat into nature, resulting in waste of resources; data centers use electric energy for refrigeration, which consumes a large amount of electricity, and at the same time, heat is dissipated into nature through cooling towers, which also causes waste of resources; LNG gasification mostly uses natural gas combustion to generate heat energy, which consumes a large amount of energy. All three have the problems of large energy loss and resource consumption.
[0004] To achieve the above objectives, the technical solution adopted in this application is: a LNG, biomass power plant and data center energy synergistic utilization system, including: A data center, the data center is composed of a cooling tower, electrical equipment and cooling pipelines of the electrical equipment, the cooling pipelines are connected to the cooling tower, and the cooling pipelines are used to cool the electrical equipment; A biomass power generation component is electrically connected to the electrical equipment via an electric wire, and the biomass power generation component is used to provide electrical energy to the electrical equipment; A reclaimed water reuse component is disposed between the biomass power generation component and the cooling tower, and is used to transport the sewage generated by the biomass power generation component to the cooling tower after purification; A data center heat and cold energy conversion component, connected to the cooling pipeline, for cooling the water in the cooling pipeline; The cold and heat energy conversion component of the biomass power plant is arranged on the biomass power generation component and is used for reusing the steam heat energy through the LNG condensate water medium.
[0005] Preferably, the biomass power generation component comprises: Biomass storage pools, mainly used for decomposing biomass and converting it into renewable energy; A biomass boiler is connected to the biomass storage tank via a feeder; A steam turbine connected to a biomass boiler through a pipeline; A generator is connected to the steam turbine to convert the mechanical energy of the steam turbine into electrical energy. The generator is electrically connected to the electrical equipment.
[0006] Preferably, the biomass power plant heat and cold energy conversion component comprises: A condenser connected to the steam turbine to condense the steam heat through the LNG water medium for reuse; A condensate pump is provided between the condenser and the biomass boiler, and is used to transport part of the condensate in the condenser to the biomass boiler for reuse; An LNG condensate circulation pump is disposed between the condenser and the pipeline insulation device to transport part of the condensate in the condenser to the pipeline insulation device; a first LNG vaporizer, connected to the pipeline insulation device, for performing heat exchange between liquid LNG flowing through the first LNG vaporizer and condensed water flowing through the first LNG vaporizer; The cold water atomizing booster pump is arranged between the condenser and the first LNG vaporizer to transport the LNG cold water after heat exchange to the condenser for reuse.
[0007] Preferably, the condenser comprises: A steam interface part connected to the steam turbine; A precooling part is connected to the end of the steam interface part away from the steam turbine, and a steam flow channel is formed with the steam interface part. The precooling part is also connected to the pipeline insulation device to form a closed circulating water flow channel. When the steam contacts the precooling part through the steam flow channel, a part of the steam heat is first extracted and used for pipeline insulation to reduce pipeline heat loss; A mixing cooling part connected to the pre-cooling part and in communication with the steam flow channel, the mixing cooling part being used for spraying water to the steam flow channel to completely condense the steam into water; A water storage chamber is connected to the mixing cooling part and communicated with the steam flow channel. The water storage chamber is used to receive condensed water. The water storage chamber has a first water outlet and a second water outlet. The first water outlet is connected to the condensate pump, and the second water outlet is connected to the LNG condensate circulation pump.
[0008] Preferably, the pre-cooling unit comprises: A water inlet chamber of the precooling section is connected to the pipeline insulation device; A water outlet chamber of the precooling section, connected to the pipeline insulation device; A plurality of heat exchange tube bundles are provided between the precooling section water inlet chamber and the precooling section water outlet chamber, the steam flow channel is formed between the plurality of heat exchange tube bundles, and a spiral pattern is provided inside the heat exchange tube bundle; A circulating water pump is arranged between the water outlet chamber of the precooling section and the pipeline insulation device.
[0009] Preferably, the hybrid cooling unit comprises: There are two mixing cooling unit water inlet chambers, the two mixing cooling unit water inlet chambers are located on both sides of the steam flow channel, and the two mixing cooling unit water inlet chambers are both connected to the cold water atomizing booster pump; A plurality of spiral atomizing nozzles are provided, and the plurality of spiral atomizing nozzles are installed in the water inlet chamber of the mixing and cooling part on one side of the steam flow channel.
[0010] Preferably, the two mixing cooling unit water inlet chambers are each provided with a pressure sensor for detecting the water pressure inside the mixing cooling unit water inlet chamber; Temperature sensors are installed on both sides of the mixing cooling part close to the water storage chamber, and the temperature sensors are used to detect the temperature of the steam flow channel in the mixing cooling part.
[0011] Preferably, the reclaimed water reuse component comprises: a leachate treatment device connected to the biomass storage tank and used to treat sewage generated by the biomass storage tank; The resource recycling water pump is arranged between the leachate treatment equipment and the cooling tower, and is used to transport the water treated by the leachate treatment equipment to the cooling tower.
[0012] Preferably, it also includes a steam heating standby component, the steam heating standby component includes A steam turbine first-stage steam extraction port is arranged on the steam turbine; The second LNG vaporizer is connected to the first-stage steam extraction port of the steam turbine. A drain tank connected to the second LNG vaporizer, used to receive drain water after heat exchange in the second LNG vaporizer; A drain pump is disposed between the drain tank and the biomass boiler, and is used to transport the drain in the drain tank to the biomass boiler.
[0013] Preferably, the data center heat and cold energy conversion component includes: a third LNG vaporizer, connected to the cooling pipeline, for exchanging heat with water in the cooling pipeline; The data center cold water circulation pump is arranged between the third LNG vaporizer and the cooling pipeline.
[0014] The beneficial effects of the LNG, biomass power plant and data center energy synergistic utilization system provided by the present application are: 1. The present invention solves the problems of high energy consumption of LNG, biomass power plants and data centers, as well as large consumption of fossil energy. It uses the cold energy generated by the LNG system process to provide cooling for biomass power plants and data centers, and recycles the heat energy of biomass power plants and data centers to supply them to the LNG process. At the same time, the green electricity, heat energy and reclaimed water generated by the biomass power plant are used in the data center and LNG, which is an important part of realizing the coordinated utilization of green resources. It seeks a new way for the coordinated utilization of LNG, biomass power plants and data center energy, reduces production pressure, promotes resource conservation and circular economic development, and is in line with today's green, environmentally friendly and low-carbon development concepts.
[0015] 2. The grey water recovery system purifies the leachate wastewater produced by biomass and reuses it in the data center to achieve the purpose of reusing wastewater resources.
[0016] 3. The LNG steam heating backup system is the backup for the entire coordinated system. It guarantees the supply of heat energy required for LNG gasification during maintenance or in winter. It mainly uses the primary steam extraction system of the biomass power plant to increase the thermal energy utilization rate of the system.
[0017] 4. The condenser is a device that converts LNG cold energy into waste heat from the biomass power plant, which increases the heat exchange effect of the system and improves the synergistic utilization of the process energy cycle of the two systems.
[0018] 5. The condenser is designed as a hybrid heat exchanger, which uses a pre-cooling section and a mixed cooling section inside, and is equipped with multiple heat exchange tube bundles and multiple spiral atomizing nozzles, so that the waste heat of steam after the biomass power plant works can be effectively utilized and the heat exchange effect can be increased.
[0019] 6. Through the control process logic design of the cold water atomizing booster pump and the temperature sensors on the left and right sides, the frequency conversion size of the cold water atomizing booster pump is controlled by the temperatures on the left and right sides, so that the cold water flow rate can be adjusted according to the turbine load to avoid the impact of condensate overcooling.
[0020] 7. The LNG condensate circulation insulation system extracts the heat energy from the condenser pre-cooling part and uses it in the LNG condensate pipeline insulation device, reducing pipeline heat loss and improving the utilization rate of LNG heat energy.
[0021] 8. The spiral atomizing nozzle arranged in the mixed cooling part of the device is provided with a two-stage atomizing mode. The first stage atomizing makes the low-temperature cold water form a spiral fan-shaped spray, the spray angle is between 60-120°, and the spray distance is short; the second stage atomizing makes the low-temperature cold water spray angle be 15-30°, and the spray distance is half of the entire condenser, ensuring that the cold water entering the mixed cooling area is fully mixed and contacted with the steam.
[0022] 9. All areas of the condensing device are tightly sealed, and the water inlet of each area maintains positive pressure to ensure that air cannot leak into the condenser, to ensure negative pressure inside the condenser, and to improve the efficiency of biomass power generation. At the same time, the water storage room is equipped with a desalted water replenishment system to maintain the water volume of the system stable, providing safety protection for the coordinated operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0024] Figure 1 A schematic diagram of the structure of a LNG, biomass power plant and data center energy collaborative utilization system provided in an embodiment of the present application; Figure 2 A schematic diagram of the three-dimensional structure of a condenser provided in an embodiment of the present application; Figure 3 A schematic cross-sectional view of a condenser provided in an embodiment of the present application; Figure 4 This is a schematic diagram of the cross-sectional structure of the spiral atomizing nozzle provided in an embodiment of the present application.
[0025] Among them, the reference numerals in the figure are: 1. Data center; 101. Cooling tower; 102. Server heat exchange equipment; 103. Storage equipment heat exchanger; 104. Network equipment heat exchanger; 105. Chilled water circulation pump; 2. Biomass storage tank; 3. Biomass boiler; 4. Steam turbine; 5. Generator; 6. Leachate treatment equipment; 7. Resource recycling water pump; 8. Pressure regulating tank; 9. Condenser; 901. Steam interface; 902. Vacuum extraction interface; 903. Precooling water inlet chamber; 904. Precooling water outlet chamber; 905. Heat exchange tube bundle; 906. Mixing cooling water inlet chamber; 907. Spiral atomizing nozzle; 908. First stage atomization; 909. Second stage atomization; 910. Pressure sensor; 911. Temperature sensor; 912. Water storage chamber; 913. First water outlet; 914. Second water outlet; 915. Desalted water replenishment interface; 916. Steam flow channel; 10. Condensate pump; 11. LNG condensate circulation pump; 12. Pipeline insulation device; 13. First LNG vaporizer; 14. Cold water atomization booster pump; 15. Second LNG vaporizer; 16. Drain tank; 17. Drain pump; 18. LNG storage tank; 19. LNG liquid storage tank; 20. LNG pump; 21. Circulating water pump; 22. Third LNG vaporizer; 23. Data center cold water circulation pump; 24. Desalted water make-up pipeline; 25. Circulating water make-up pipeline. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] Please also read Figures 1 to 4 , a LNG, biomass power plant and data center energy collaborative utilization system provided in an embodiment of the present application is now described.
[0031] An LNG, biomass power plant and data center 1 energy synergistic utilization system includes a data center 1, a biomass power generation component, a reclaimed water recycling component, a data center 1 cold and heat energy conversion component, and a biomass power plant cold and heat energy conversion component.
[0032] Specifically, the data center 1 is composed of a cooling tower 101, electrical equipment and cooling pipelines of the electrical equipment. The cooling pipelines are connected to the cooling tower 101 and are used to cool the electrical equipment. The electrical equipment includes servers, storage equipment and network equipment. The cooling pipelines are connected to the server heat exchange equipment 102, the storage equipment heat exchanger 103 and the network equipment heat exchanger 104, and a cold water circulation pump 105 is installed on the cooling pipeline so that the cold water returns to the cooling tower 101 after heat exchange.
[0033] The biomass power generation component is electrically connected to the electrical equipment through electric wires, and the biomass power generation component is used to provide electrical energy for the electrical equipment; the specific biomass power generation component includes: a biomass storage tank 2, which is mainly used to decompose biomass and convert it into renewable energy; a biomass boiler 3, which is connected to the biomass storage tank through a feeder; a steam turbine 4, which is connected to the biomass boiler 3 through a pipeline; a generator 5, which is connected to the steam turbine 4, and the generator 5 converts the mechanical energy of the steam turbine 4 into electrical energy, and transmits the generated electrical energy to the electrical equipment of the data center 1 through electric wires.
[0034] The cold and heat energy conversion component of the biomass power plant is arranged on the biomass power generation component, and is used to condense the steam heat energy into a water medium through LNG and reuse it. Specifically, the cold and heat energy conversion component of the biomass power plant includes: a condenser 9, which is connected to the steam turbine 4, and reuses the steam heat energy after condensing the LNG into a water medium; a condensate pump 10, which is arranged between the condenser 9 and the biomass boiler 3, and is used to transport part of the condensate in the condenser 9 to the biomass boiler 3 for reuse; an LNG condensate circulation pump 11, which is arranged between the condenser 9 and the pipeline insulation device 12, and is used to transport part of the condensate in the condenser 9 to the pipeline insulation device 12; a first LNG vaporizer 13, which is connected to the pipeline insulation device 12, and is used to transport the liquid LNG flowing through the first LNG vaporizer 13 to the liquid LNG flowing through the first LNG vaporizer 13. condensed water for heat exchange; a cold water atomizing booster pump 14 is arranged between the condenser 9 and the first LNG vaporizer 13, and the water inlet end of the cold water atomizing booster pump 14 is connected to the heat exchange outlet pipe of the first LNG vaporizer 13 through a pipe, and the cold water atomizing booster pump 14 transports the LNG cold water after heat exchange to the condenser 9 for repeated reuse; the first LNG vaporizer 13 is also connected to the LNG liquid storage tank 19 and the LNG storage tank 18 respectively, and the liquefied natural gas absorbs heat energy through the first LNG vaporizer 13 and is vaporized and refluxed to the LNG storage tank 18, and an LNG pump 20 is also connected to the outlet pipe of the LNG liquid storage tank 19 for transporting the liquefied natural gas to the LNG vaporizer.
[0035] In a further embodiment, the condenser 9 includes: a steam interface part 901, which is connected to the steam turbine 4, and a vacuum pumping interface 902 is also provided on the steam interface part 901. The vacuum pumping device is connected through the vacuum pumping interface 902. The steam condenses in the condenser 9, and the interior of the condenser 9 is in a vacuum state. The non-condensable gas in the condenser 9 can be extracted by using this vacuum pumping interface 902 to ensure the vacuum degree inside the condenser 9; a precooling part, which is connected to the end of the steam interface part 901 away from the steam turbine 4, and a steam flow channel 916 is formed with the steam interface part 901. The precooling part is also connected to the pipeline insulation device 12 to form a closed circulating water flow channel. When the steam contacts the precooling part through the steam flow channel 916, a part of the steam heat is first extracted for pipeline insulation to reduce pipeline heat loss. Loss; Specifically, the precooling part includes: a precooling part water inlet chamber 903, which is connected to the pipe insulation device 12; a precooling part water outlet chamber 904, which is connected to the pipe insulation device 12, and a circulating water pump 21 is installed between the precooling part water outlet chamber 904 and the pipe insulation device 12; a heat exchange tube bundle 905, which is a plurality of tube bundles, and the plurality of heat exchange tube bundles 905 are arranged between the precooling part water inlet chamber 903 and the precooling part water outlet chamber 904, and are all connected to the precooling part water inlet chamber 903 and the precooling part water outlet chamber 904, and the steam flow channel 916 is formed between the plurality of heat exchange tube bundles 905; the spacing between the heat exchange tube bundles 905 is 15-35mm, the tube bundle diameter is 20-40mm, and a triangular arrangement is adopted. The heat exchange tube bundle 905 is made of 304 stainless steel and has a spiral pattern inside to increase the turbulence of low-temperature cold water. Under the action of the circulating water pump 21, the water in the pipe insulation device 12 enters the precooling part water inlet chamber 903, passes through the heat exchange tube bundle 905, exchanges heat with the steam, and then flows back to the pipe insulation device 12 through the outlet of the precooling part water outlet chamber 904. A part of the steam heat is first extracted and used for pipe insulation to reduce the heat loss of the pipe. This cycle is repeated. It should be noted that a circulating water replenishment pipe 25 is also connected to the circulating pipeline to supplement the water loss during the circulation process. After the steam exchanges heat, water droplets will form on the outer surface of the heat exchange tube bundle 905.
[0036] A mixing cooling unit is connected to the pre-cooling unit and communicated with the steam flow channel 916. The mixing cooling unit is used to spray water to the steam flow channel 916 to completely condense the steam into water. Specifically, the mixing cooling unit includes: two mixing cooling unit water inlet chambers 906, the two mixing cooling unit water inlet chambers 906 are located on both sides of the steam flow channel 916, and the two mixing cooling unit water inlet chambers 906 are communicated with the cold water atomizing booster pump 14; a spiral atomizing nozzle 907 is provided with multiple, multiple The spiral atomizing nozzle 907 is installed on one side of the two mixing cooling part water inlet chambers 906 located on the steam flow channel 916. The spiral atomizing nozzle 907 is provided with a two-stage atomizing mode. The first stage atomizing 908 makes the low-temperature cold water form a spiral fan-shaped spray, the spray angle is between 60-120°, and the spray distance is short; the second stage atomizing 909 makes the low-temperature cold water spray angle 15-30°, and the spray distance is half of the entire condenser 9, ensuring that the cold water entering the mixing cooling area is fully mixed and contacted with the steam. The proportion of the precooling part and the mixing cooling part is 15%-33% for the precooling part and 67%-75% for the mixing cooling part.
[0037] Furthermore, the two water inlet chambers 906 of the mixing cooling section are each provided with a pressure sensor 910 for detecting the water pressure inside the water inlet chamber 906 of the mixing cooling section; temperature sensors 911 are installed on both sides of the mixing cooling section close to the water storage chamber 912, and the temperature sensors 911 are used to detect the temperature of the steam flow channel 916 in the mixing cooling section. The two pressure sensors 910 and the two temperature sensors 911 are all electrically connected to the controller, and the controller is also electrically connected to the cold water atomizing booster pump 14. At this time, the cold water atomizing booster pump 14 is a variable frequency booster pump 20; when the water pressure in the water inlet chamber 906 of the mixed cooling part drops to 0.05MPa, the controller receives the signal from the pressure sensor 910 and sends a command to increase the working frequency to the cold water atomizing booster pump 14 to ensure that the pressure in the water inlet chamber of the mixed cooling area is higher than the atmospheric pressure, so as to prevent air from entering and affecting the vacuum degree of the condenser 9; when the temperature sensor 911 in the steam flow channel 916 receives the signal from the temperature sensor 911, the controller sends a variable frequency command to the cold water atomizing booster pump 14 (when the temperature is lower than 40°C, the booster pump frequency is reduced, and when the temperature is higher than 48°C, the booster pump frequency is increased), thereby adjusting the water spray flow rate and the atomization effect, so that the cold water injection flow rate can be adjusted according to the load fluctuation of the turbine 4.
[0038] The water storage chamber 912 is connected to the mixing cooling part and communicated with the steam flow channel 916. The water storage chamber 912 is used to receive condensed water. The water storage chamber 912 has a first water outlet 913 and a second water outlet 914. The first water outlet 913 is connected to the condensed water pump 10, and the second water outlet 914 is connected to the LNG condensed water circulation pump 11. The water storage chamber 912 is also provided with a desalted water replenishment interface 915, and the desalted water replenishment interface 915 is connected to the desalted water replenishment pipeline 24. In this system, the LNG condensed water circulation pump 11 and the condensed water pump 10 are both provided with a backup pump 20.
[0039] The working process of the condenser 9 includes a steam condensation stage S1, a circulating water working stage S2 and a cold water working stage S3; The steam condensation stage S1 comprises the following steps: S1-1, the steam enters the steam turbine 4 to do work and then is discharged into the steam interface 901, and then enters the pre-cooling part to exchange heat with the heat exchange tube bundle 905 to pre-condense a part of the steam; S1-2, the remaining uncondensed steam enters the mixing cooling section and mixes with the cold water sprayed from the spiral atomizing nozzles 907 on the left and right sides, and all the steam is condensed into water; S1-3, the condensate enters the water storage chamber 912 for storage, a part of it enters the condensate pump 10 through the condensate pump 10 interface, and a part of it enters the LNG condensate circulation pump 11 through the LNG condensate circulation pump 11 interface to be transported to the pipeline insulation device 12, and then to the first LNG vaporizer 13; The circulating water working stage S2 includes the following steps: S2-1, cooling water passes through the outlet of the pre-cooling unit water outlet chamber 904 and enters the circulating water pump 21 for pressure transport to the LNG condensate water pipeline insulation device 12; S2-2, the circulating water releases heat in the pipe insulation device 12 to ensure the water temperature of the condensate pipe, and then returns to the pre-cooling part water inlet chamber 903 from the outlet of the pipe insulation device 12; S2-3, the circulating water enters the pre-cooling section water inlet chamber 903 through the inlet of the pre-cooling section water inlet chamber 903, and then enters the heat exchange tube bundle 905, and the temperature increases due to heat exchange with steam; S2-4, the circulating water in the heat exchange tube bundle 905 enters the pre-cooling water outlet chamber 904, and enters the circulating water pump 21 through the outlet of the pre-cooling water outlet chamber 904; The cold water working stage S3 comprises the following steps: S3-1, cold water is pressurized and transported to the pipeline insulation device 12 through the LNG condensate circulation pump 11, and then to the first LNG vaporizer 13 to exchange heat with LNG, and the temperature is reduced; S3-2, low-temperature cold water is transported to the cold water atomizing booster pump 14 through a pipeline, and the cold water atomizing booster pump 14 boosts the cold water and enters the mixing cooling unit water inlet chamber 906 on the left and right sides of the mixing cooling unit; S2-3, the amount of cold water entering the water inlet chamber 906 of the mixing cooling unit is controlled by adjusting the frequency of the cold water atomizing booster pump 14; S2-4, the cold water in the water inlet chamber 906 of the mixed cooling unit is sprayed out through the spiral atomizing nozzle 907 to contact and exchange heat with the steam, and finally the cold water is mixed with the condensed water and enters the water storage chamber 912.
[0040] S2-5. The cold water in the water storage chamber 912 is mixed with the condensate and then discharged by the condensate pump 10 and the LNG condensate circulation pump 11 for recycling.
[0041] The reclaimed water reuse component is arranged between the biomass power generation component and the cooling tower 101. The reclaimed water reuse component is used to transport the sewage generated by the biomass power generation component to the cooling tower 101 after purification; the specific reclaimed water reuse component includes: leachate treatment equipment 6, connected to the biomass storage tank 2, used to treat the sewage generated by the biomass storage tank 2; resource recycling water pump 7, arranged between the leachate treatment equipment 6 and the cooling tower 101, used to transport the water treated by the leachate treatment equipment 6 to the cooling tower 101. In the reclaimed water reuse component, a part of the water is connected to the cold and heat energy conversion component of the data center 1 through pipelines and a surge tank 8 to compensate for the cold water loss in the cold water circulation process of the data center 1. The surge tank 8 is to ensure a certain pressure value in the cold water circulation system pipeline of the data center 1. When the pressure drops, the leachate purified water replenishes the surge tank 8 to increase the pressure of the surge tank 8, thereby ensuring the cold water pressure in the system pipeline.
[0042] The heat-cold energy conversion component of data center 1 is connected to the cooling pipeline and is used to cool the water in the cooling pipeline so as to exchange heat with the server heat exchange equipment 102, the storage equipment heat exchanger 103, and the network equipment heat exchanger 104 in the data center 1; specifically, the heat-cold energy conversion component of data center 1 includes: a third LNG vaporizer 22 connected to the cooling pipeline, and the third LNG vaporizer 22 is also connected to the LNG liquid storage tank 19 and the LNG storage tank 18. The liquid LNG is vaporized by the third LNG vaporizer 22 and then flows back to the LNG storage tank 18, which is used to exchange heat with the water in the cooling pipeline so as to exchange heat with the server heat exchange equipment 102, the storage equipment heat exchanger 103, and the network equipment heat exchanger 104 in the data center 1; a data center cold water circulation pump 23 is arranged between the third LNG vaporizer 22 and the cooling pipeline.
[0043] In a further embodiment, the system further comprises a steam heating standby component, which comprises a primary steam extraction port of the steam turbine 4, which is arranged on the steam turbine 4; a second LNG vaporizer 15, which is connected to the primary steam extraction port of the steam turbine 4; a drain tank 16, which is connected to the second LNG vaporizer 15, and is used to receive the drain water after the heat exchange of the second LNG vaporizer 15; and a drain pump 17, which is arranged between the drain tank 16 and the biomass boiler 3, and is used to transport the drain water in the drain tank 16 to the biomass boiler 3 for reuse. In winter, the data center 1 adopts free cooling, and uses a cold water circulation pump 105 to transport the water in the cooling tower 101 to the server heat exchange equipment 102, storage equipment heat exchanger 103, and network equipment heat exchanger 104 in the data center 1, and then returns to the cooling tower 101, so that its heat is dissipated to the outdoors, and the cycle continues. In winter, the third LNG vaporizer 22 is closed, and the heat required by the third LNG vaporizer 22 is supplied by the first-stage steam extraction of the turbine 4 of the biomass power plant, and the heat is transferred to the LNG by the second LNG vaporizer 15 to gasify it; in other seasons, the heat generated by the condenser 9 of the biomass power plant and the server heat exchange equipment 102, storage equipment heat exchanger 103, and network equipment heat exchanger 104 of the data center 1 is transferred to the liquid LNG by the first LNG vaporizer 13 and the third LNG vaporizer 22 to gasify it and complete the operation of the LNG system. When the heat is insufficient, it is completed by the second LNG vaporizer 15. It should be noted that the first LNG vaporizer 13, the second LNG vaporizer 15, and the third LNG vaporizer 22 are all connected to the LNG liquid storage tank 19 and the LNG storage tank 18, and the liquid LNG is gasified by the LNG vaporizer and refluxed to the LNG storage tank 18. The equipment not specifically introduced in the present invention is all common equipment on the market, and the specific connection relationship is also a common connection relationship, and the present invention does not make too many redundant descriptions.
[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A LNG, biomass power plant and data center energy collaborative utilization system, characterized in that: include: A data center, the data center is composed of a cooling tower, electrical equipment and cooling pipelines of the electrical equipment, the cooling pipelines are connected to the cooling tower, and the cooling pipelines are used to cool the electrical equipment; A biomass power generation component is electrically connected to the electrical equipment via an electric wire, and the biomass power generation component is used to provide electrical energy to the electrical equipment; A reclaimed water reuse component is disposed between the biomass power generation component and the cooling tower, and is used to transport the sewage generated by the biomass power generation component to the cooling tower after purification; A data center heat and cold energy conversion component, connected to the cooling pipeline, for cooling the water in the cooling pipeline; The cold and heat energy conversion component of the biomass power plant is arranged on the biomass power generation component and is used for reusing the steam heat energy through the LNG condensate water medium.
2. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 1, characterized in that: The biomass power generation component comprises: Biomass storage pools, mainly used for decomposing biomass and converting it into renewable energy; A biomass boiler is connected to the biomass storage tank via a feeder; A steam turbine connected to a biomass boiler through a pipeline; A generator is connected to the steam turbine to convert the mechanical energy of the steam turbine into electrical energy. The generator is electrically connected to the electrical equipment.
3. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 2, characterized in that: The biomass power plant heat and cold energy conversion component comprises: A condenser connected to the steam turbine to condense the steam heat through the LNG water medium for reuse; A condensate pump is provided between the condenser and the biomass boiler, and is used to transport part of the condensate in the condenser to the biomass boiler for reuse; An LNG condensate circulation pump is disposed between the condenser and the pipeline insulation device to transport part of the condensate in the condenser to the pipeline insulation device; a first LNG vaporizer, connected to the pipeline insulation device, for performing heat exchange between liquid LNG flowing through the first LNG vaporizer and condensed water flowing through the first LNG vaporizer; The cold water atomizing booster pump is arranged between the condenser and the first LNG vaporizer to transport the LNG cold water after heat exchange to the condenser for reuse.
4. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 3, characterized in that: The condenser comprises: A steam interface part connected to the steam turbine; A precooling part is connected to the end of the steam interface part away from the steam turbine, and a steam flow channel is formed with the steam interface part. The precooling part is also connected to the pipeline insulation device to form a closed circulating water flow channel. When the steam contacts the precooling part through the steam flow channel, a part of the steam heat is first extracted and used for pipeline insulation to reduce pipeline heat loss; A mixing cooling part connected to the pre-cooling part and in communication with the steam flow channel, the mixing cooling part being used for spraying water to the steam flow channel to completely condense the steam into water; A water storage chamber is connected to the mixing cooling part and communicated with the steam flow channel. The water storage chamber is used to receive condensed water. The water storage chamber has a first water outlet and a second water outlet. The first water outlet is connected to the condensate pump, and the second water outlet is connected to the LNG condensate circulation pump.
5. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 4, characterized in that: The pre-cooling unit comprises: A water inlet chamber of the precooling section is connected to the pipeline insulation device; A water outlet chamber of the precooling section, connected to the pipeline insulation device; A plurality of heat exchange tube bundles are provided between the precooling section water inlet chamber and the precooling section water outlet chamber, the steam flow channel is formed between the plurality of heat exchange tube bundles, and a spiral pattern is provided inside the heat exchange tube bundle; A circulating water pump is arranged between the water outlet chamber of the precooling section and the pipeline insulation device.
6. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 5, characterized in that: The mixed cooling unit comprises: There are two mixing cooling unit water inlet chambers, the two mixing cooling unit water inlet chambers are located on both sides of the steam flow channel, and the two mixing cooling unit water inlet chambers are both connected to the cold water atomizing booster pump; A plurality of spiral atomizing nozzles are provided, and the plurality of spiral atomizing nozzles are installed in the water inlet chamber of the mixing and cooling part on one side of the steam flow channel.
7. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 6, characterized in that: The two mixing cooling unit water inlet chambers are both provided with a pressure sensor for detecting the water pressure inside the mixing cooling unit water inlet chamber; Temperature sensors are installed on both sides of the mixing cooling part close to the water storage chamber, and the temperature sensors are used to detect the temperature of the steam flow channel in the mixing cooling part.
8. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 1 or 7, characterized in that: The reclaimed water reuse component comprises: a leachate treatment device connected to the biomass storage tank and used to treat sewage generated by the biomass storage tank; The resource recycling water pump is arranged between the leachate treatment equipment and the cooling tower, and is used to transport the water treated by the leachate treatment equipment to the cooling tower.
9. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 8, characterized in that: It also includes a steam heating standby component, the steam heating standby component includes A steam turbine first-stage steam extraction port is arranged on the steam turbine; The second LNG vaporizer is connected to the first-stage steam extraction port of the steam turbine. A drain tank connected to the second LNG vaporizer, used to receive drain water after heat exchange in the second LNG vaporizer; A drain pump is disposed between the drain tank and the biomass boiler, and is used to transport the drain in the drain tank to the biomass boiler.
10. The LNG, biomass power plant and data center energy collaborative utilization system according to claim 9, characterized in that: The data center heat and cold energy conversion component includes: a third LNG vaporizer, connected to the cooling pipeline, for exchanging heat with water in the cooling pipeline; The data center cold water circulation pump is arranged between the third LNG vaporizer and the cooling pipeline.