LNG (Liquefied Natural Gas), biomass power plant and data center energy collaborative utilization system

Abstract

The utility model provides an LNG, biomass power plant and data center energy collaborative utilization system which comprises a data center, the data center is composed of a cooling tower, electric equipment and a cooling pipeline of the electric equipment, the cooling pipeline communicates with the cooling tower, and the cooling pipeline is used for cooling the electric equipment; the biomass power generation assembly is electrically connected with the electric equipment through an electric wire, and the biomass power generation assembly is used for providing electric energy for the electric equipment; the reclaimed water recycling assembly is arranged between the biomass power generation assembly and the cooling tower, and the reclaimed water recycling assembly is used for purifying sewage generated by the biomass power generation assembly and then conveying the purified sewage to the cooling tower; the data center cold and heat energy conversion assembly communicates with the cooling pipeline and is used for cooling water in the cooling pipeline; and the biomass power plant cold and heat energy conversion assembly is arranged on the biomass power generation assembly and used for recycling the steam heat energy after the steam heat energy passes through the LNG condensation water medium. The problems of large energy loss and large resource consumption in the background technology are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cold and heat source utilization, and more particularly to an LNG, biomass power plant and data center energy collaborative utilization system. BACKGROUND

[0002] At present, the biomass power plant mostly adopts circulating cooling water cooling, and heat is dissipated to nature, causing resource waste. The data center utilizes electric energy refrigeration and consumes a large amount of electric energy, and at the same time, heat is dissipated to nature through a cooling tower, also causing resource waste. The LNG gasification mostly adopts natural gas combustion to generate heat energy, consuming a large amount of energy. The three all have problems of large energy loss and resource consumption. Therefore, in view of the current process status, the biomass power plant, data center and LNG system are reshaped to solve the cooling and heating of each party and provide cold and heat electric energy for each party. A new system is developed to collaboratively utilize the LNG cold energy, biomass power plant heat energy and electric energy, data center heat energy. The system can provide heating for the LNG system and green electricity for the data center, and can also provide cooling for the biomass power plant and data center, saving the energy consumption and energy loss of each party, and seeking a new way for LNG process heating, biomass power plant cooling and data center electricity and cooling. CONTENT OF THE INVENTION

[0003] The purpose of the embodiment of the application is to provide an LNG, biomass power plant and data center energy collaborative utilization system to solve the problems of large energy loss and resource consumption of the three, i.e. the biomass power plant mostly adopts circulating cooling water cooling, and heat is dissipated to nature, causing resource waste; the data center utilizes electric energy refrigeration and consumes a large amount of electric energy, and at the same time, heat is dissipated to nature through a cooling tower, also causing resource waste; the LNG gasification mostly adopts natural gas combustion to generate heat energy, consuming a large amount of energy.

[0004] To achieve the above purpose, the technical scheme adopted by the application is as follows: an LNG, biomass power plant and data center energy collaborative utilization system, comprising:

[0005] a data center, which is composed of a cooling tower, an electric equipment and a cooling pipeline of the electric equipment, the cooling pipeline is communicated with the cooling tower, and the cooling pipeline is used for cooling the electric equipment;

[0006] a biomass power generation assembly, which is electrically connected with the electric equipment through an electric wire, and is used for providing electric energy for the electric equipment;

[0007] a reclaimed water reuse assembly, which is arranged between the biomass power generation assembly and the cooling tower, and is used for conveying sewage generated by the biomass power generation assembly to the cooling tower after purification.

[0008] A data center cold-heat energy conversion assembly, which is connected to the cooling pipeline and used for cooling water in the cooling pipeline;

[0009] A biomass power plant cold-heat energy conversion assembly, which is arranged on the biomass power generation assembly and used for recycling steam heat energy through LNG condensate water medium.

[0010] Preferably, the biomass power generation assembly comprises:

[0011] A biomass storage pool, which is mainly used for decomposition and conversion of biomass renewable energy;

[0012] A biomass boiler, which is connected to the biomass storage pool through a feeder;

[0013] A steam turbine, which is connected to the biomass boiler through a pipeline;

[0014] A generator, which is connected to the steam turbine and converts mechanical energy of the steam turbine into electrical energy, and which is electrically connected to the electrical equipment.

[0015] Preferably, the biomass power plant cold-heat energy conversion assembly comprises:

[0016] A condenser, which is connected to the steam turbine and recycles steam heat energy through LNG condensate water medium;

[0017] A condensate water pump, which is arranged between the condenser and the biomass boiler and used for conveying part of condensate water in the condenser to the biomass boiler for recycling;

[0018] An LNG condensate water circulating pump, which is arranged between the condenser and a pipeline insulation device and used for conveying part of condensate water in the condenser to the pipeline insulation device;

[0019] A first LNG gasifier, which is connected to the pipeline insulation device and used for heat exchange between liquid LNG flowing through the first LNG gasifier and condensate water flowing through the first LNG gasifier;

[0020] A cold water atomizing booster pump, which is arranged between the condenser and the first LNG gasifier and used for conveying LNG cold water after heat exchange to the condenser for recycling.

[0021] Preferably, the condenser comprises:

[0022] A steam interface part, which is connected to the steam turbine;

[0023] A pre-cooling section is connected to the steam interface section far away from the steam turbine and forms a steam flow channel with the steam interface section, and the pre-cooling section is also connected to the pipeline heat preservation device and forms a closed circulating water flow channel, when the steam contacts with the pre-cooling section through the steam flow channel, a part of the steam heat is extracted first to be used for pipeline heat preservation to reduce the pipeline heat loss;

[0024] A mixed cooling section is connected to the pre-cooling section and connected to the steam flow channel, and the mixed cooling section is used for atomizing water spray to the steam flow channel to make the steam completely condense into water;

[0025] A water storage chamber is connected to the mixed cooling section and connected to the steam flow channel, and the water storage chamber is used for receiving the condensed water, and the water storage chamber has a first water outlet and a second water outlet, the first water outlet is connected to the condensed water pump, and the second water outlet is connected to the LNG condensed water circulating pump.

[0026] Preferably, the pre-cooling section comprises:

[0027] A pre-cooling section water inlet chamber is connected to the pipeline heat preservation device;

[0028] A pre-cooling section water outlet chamber is connected to the pipeline heat preservation device;

[0029] A plurality of heat exchange tube bundles are arranged between the pre-cooling section water inlet chamber and the pre-cooling section water outlet chamber, and the heat exchange tube bundles form the steam flow channel therebetween, and the heat exchange tube bundles are provided with spiral threads inside;

[0030] A circulating water pump is arranged between the pre-cooling section water outlet chamber and the pipeline heat preservation device.

[0031] Preferably, the mixed cooling section comprises:

[0032] Two mixed cooling section water inlet chambers are arranged on both sides of the steam flow channel, and the mixed cooling section water inlet chambers are connected to the cold water atomizing booster pump;

[0033] A plurality of spiral atomizing nozzles are arranged on one side of the mixed cooling section water inlet chamber in the steam flow channel.

[0034] Preferably, the two mixed cooling section water inlet chambers are provided with pressure sensors for detecting the water pressure inside the mixed cooling section water inlet chambers;

[0035] Temperature sensors are arranged on both sides of the mixed cooling section close to the water storage chamber, and the temperature sensors are used for detecting the temperature of the steam flow channel in the mixed cooling section.

[0036] Preferably, the reclaimed water recycling assembly comprises:

[0037] A leachate treatment device connected to the biomass storage pool and configured to treat sewage generated by the biomass storage pool;

[0038] A resource recycling water pump arranged between the leachate treatment device and the cooling tower and configured to deliver water treated by the leachate treatment device to the cooling tower.

[0039] Preferably, the system further comprises a steam heating standby assembly, which comprises

[0040] A steam turbine first-stage extraction port arranged on the steam turbine;

[0041] A second LNG gasifier connected to the steam turbine first-stage extraction port,

[0042] A drain tank connected to the second LNG gasifier and configured to receive drain water after heat exchange of the second LNG gasifier;

[0043] A drain pump arranged between the drain tank and the biomass boiler and configured to deliver drain water in the drain tank to the biomass boiler.

[0044] Preferably, the data center cold-heat energy conversion assembly comprises:

[0045] A third LNG gasifier in communication with the cooling pipeline and configured to perform heat exchange on water in the cooling pipeline;

[0046] A data center cold water circulating pump arranged between the third LNG gasifier and the cooling pipeline.

[0047] The LNG, biomass power plant and data center energy co-utilization system provided by the present application has the following beneficial effects:

[0048] 1. The utility model solves the problems of high energy consumption of LNG, biomass power plant and data center and large consumption of fossil energy, uses cold energy generated by LNG system process to provide cooling for biomass power plant and data center, recovers heat energy of biomass power plant and data center to supply to LNG process, uses green electricity, heat energy and reclaimed water generated by biomass power plant to data center and LNG, is an important link for realizing green resource co-utilization, seeks a new way for LNG, biomass power plant and data center energy co-utilization, reduces production pressure, promotes resource conservation and circular economy development, and conforms to the current green, environmental protection and low-carbon development concept.

[0049] 2. The reclaimed water recovery system purifies leachate sewage generated by biomass and then utilizes the leachate sewage to data center, so as to achieve the purpose of sewage resource recovery.

[0050] 3. LNG steam heating standby system is a standby of the whole collaborative system, which ensures the supply of heat energy required for LNG gasification when overhauling or in winter, mainly using the primary steam extraction system of the biomass power plant to increase the heat energy utilization rate of the system.

[0051] 4. The condenser is a device for converting LNG cold energy and biomass power plant waste heat, which increases the heat exchange effect of the system and improves the collaborative utilization effect of the two system process energy cycles.

[0052] 5. The condenser is designed as a mixed heat exchanger, which internally uses a pre-cooling part and a mixed cooling part, and is equipped with multiple heat exchange tube bundles and multiple spiral atomizing nozzles, so that the steam waste heat after work of the biomass power plant is effectively utilized, and the heat exchange effect is increased.

[0053] 6. Through the control process logic design of the left and right side temperature sensors and the cold water atomizing booster pump, the frequency of the cold water atomizing booster pump is controlled according to the left and right side temperature, so that the cold water flow can be adjusted according to the load of the steam turbine, and the influence of overcooling of the condensate water is avoided.

[0054] 7. The LNG condensate water circulation heat preservation system extracts the heat energy of the pre-cooling part of the condenser and utilizes it in the LNG condensate water pipeline heat preservation device, which reduces the pipeline heat loss and improves the LNG heat energy utilization rate.

[0055] 8. The spiral atomizing nozzle arranged in the mixed cooling part is provided with a double-stage atomizing mode, the first stage atomizing makes the low-temperature cold water form a spiral fan-shaped jet, the jet angle is between 60-120°, and the jet distance is relatively short; the second stage atomizing makes the low-temperature cold water jet angle be 15-30°, the jet distance is half of the whole condenser, and the cold water entering the mixed cooling area is ensured to be fully mixed and contacted with the steam.

[0056] 9. All areas of the condensing device are sealed tightly, the water in each area is maintained at positive pressure, air cannot leak into the interior of the condenser, the interior of the condenser is maintained at negative pressure, the biomass power generation efficiency is improved, and the water storage chamber is provided with a desalted water replenishing system to maintain the stability of the water quantity of the system and provide safety guarantee for the collaborative operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0058] Fig. 1A structural schematic diagram of an LNG, biomass power plant and data center energy collaborative utilization system provided by an embodiment of the present application;

[0059] Fig. 2 A three-dimensional structural schematic diagram of a condenser provided by an embodiment of the present application;

[0060] Fig. 3 A sectional structural schematic diagram of a condenser provided by an embodiment of the present application;

[0061] Fig. 4 A sectional structural schematic diagram of a spiral atomizing nozzle provided by an embodiment of the present application.

[0062] In the drawings, various reference signs represent:

[0063] 1, data center; 101, cooling tower; 102, server heat exchange device; 103, storage device heat exchanger; 104, network device heat exchanger; 105, cold water circulating pump;

[0064] 2, biomass storage pool; 3, biomass boiler; 4, steam turbine; 5, generator; 6, leachate treatment device; 7, resource reuse water pump; 8, pressure stabilizing tank;

[0065] 9, condenser; 901, steam interface part; 902, vacuum air extraction interface; 903, pre-cooling part water inlet chamber; 904, pre-cooling part water outlet chamber; 905, heat exchange tube bundle; 906, mixed cooling part 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, desalinated water supplement interface; 916, steam flow channel;

[0066] 10, condensate pump; 11, LNG condensate circulating pump; 12, pipe heat preservation device; 13, first LNG gasifier; 14, cold water atomizing booster pump; 15, second LNG gasifier; 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 gasifier; 23, data center cold water circulating pump; 24, desalinated water supplement pipeline; 25, circulating water supplement pipeline. DETAILED DESCRIPTION

[0067] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the 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.

[0068] It should be noted that when an element is referred to as being "fixed" or "set" 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.

[0069] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0070] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0071] Please refer to Figs. 1 to 4 , now a LNG, biomass power plant and data center energy collaborative utilization system provided by the embodiment of the present application will be described.

[0072] A LNG, biomass power plant and data center 1 energy collaborative utilization system comprises a data center 1, a biomass power generation assembly, a reclaimed water reuse assembly, a data center 1 cold and heat energy conversion assembly, and a biomass power plant cold and heat energy conversion assembly.

[0073] Specifically, the data center 1 is composed of a cooling tower 101, an electric equipment and a cooling pipeline of the electric equipment. The cooling pipeline is communicated with the cooling tower 101, and is used for cooling the electric equipment. The electric equipment includes a server, a storage device and a network device. The cooling pipeline is communicated with a server heat exchange device 102, a storage device heat exchanger 103 and a network device heat exchanger 104. A cold water circulating pump 105 is installed on the cooling pipeline, so that the cold water is cooled and then returned to the cooling tower 101.

[0074] The biomass power generation assembly is electrically connected with the power utilization device through an electric wire, and is used for providing electric energy for the power utilization device. Specifically, the biomass power generation assembly comprises a biomass storage pool 2 mainly used for decomposition and conversion of biomass renewable energy; a biomass boiler 3 connected with the biomass storage pool through a feeding machine; a steam turbine 4 connected with the biomass boiler 3 through a pipeline; and a generator 5 connected with the steam turbine 4, wherein the generator 5 converts mechanical energy of the steam turbine 4 into electric energy, and the generated electric energy is transmitted to the power utilization device of the data center 1 through the electric wire.

[0075] The biomass power plant cold and heat energy conversion assembly is arranged on the biomass power generation assembly, and is used for repeatedly using steam heat energy by condensing LNG into water medium. Specifically, the biomass power plant cold and heat energy conversion assembly comprises a condenser 9 connected with the steam turbine 4, which repeatedly uses steam heat energy by condensing LNG into water medium; a condensate pump 10 arranged between the condenser 9 and the biomass boiler 3, which is used for transmitting part of condensate in the condenser 9 to the biomass boiler 3 for repeated use; an LNG condensate circulating pump 11 arranged between the condenser 9 and a pipeline heat preservation device 12, which is used for transmitting part of condensate in the condenser 9 to the pipeline heat preservation device 12; a first LNG gasifier 13 communicated with the pipeline heat preservation device 12, which is used for heat exchanging between LNG in liquid state flowing through the first LNG gasifier 13 and condensate flowing through the first LNG gasifier 13; a cold water atomization booster pump 14 arranged between the condenser 9 and the first LNG gasifier 13, wherein the water inlet end of the cold water atomization booster pump 14 is connected with the heat exchange outlet pipeline of the first LNG gasifier 13 through a pipeline, and the cold water atomization booster pump 14 transmits LNG cold water after heat exchange to the condenser 9 for repeated use; the first LNG gasifier 13 is further connected with an LNG liquid storage tank 19 and an LNG storage tank 18 respectively, liquid natural gas is gasified after absorbing heat energy through the first LNG gasifier 13 and flows back to the LNG storage tank 18, and an LNG pump 20 is further connected with the outlet pipeline of the LNG liquid storage tank 19, which is used for transmitting liquid natural gas to the LNG gasifier.

[0076] In further embodiments, the condenser 9 comprises: a steam interface part 901 connected to the steam turbine 4, and a vacuum exhaust interface 902 further provided at the steam interface part 901, through which a vacuum exhaust device is connected, steam is condensed in the condenser 9, and the inside of the condenser 9 is in a vacuum state, and the non-condensed gas in the condenser 9 can be exhausted through the vacuum exhaust interface 902 to ensure the vacuum degree inside the condenser 9; a pre-cooling part connected to the end of the steam interface part 901 away from the steam turbine 4, and forming a steam flow channel 916 with the steam interface part 901, the pre-cooling part is further connected to the pipeline heat preservation device 12 and forms a closed circulating water flow channel, when the steam passes through the steam flow channel 916 and contacts the pre-cooling part, a part of the steam heat is extracted first to be used for pipeline heat preservation to reduce pipeline heat loss; specifically, the pre-cooling part comprises: a pre-cooling part water inlet chamber 903 connected to the pipeline heat preservation device 12; a pre-cooling part water outlet chamber 904 connected to the pipeline heat preservation device 12, and a circulating water pump 21 installed between the pre-cooling part water outlet chamber 904 and the pipeline heat preservation device 12; a plurality of heat exchange tube bundles 905, the plurality of heat exchange tube bundles 905 are arranged between the pre-cooling part water inlet chamber 903 and the pre-cooling part water outlet chamber 904 and are connected to the pre-cooling part water inlet chamber 903 and the pre-cooling part water outlet chamber 904, and the plurality of heat exchange tube bundles 905 form the steam flow channel 916; the heat exchange tube bundles 905 have a spacing of 15-35 mm, a bundle diameter of 20-40 mm, and a triangular arrangement, the heat exchange tube bundles 905 are made of 304 stainless steel and have a spiral thread inside to increase low-temperature cold water turbulence. Under the action of the circulating water pump 21, the water in the pipeline heat preservation device 12 enters the pre-cooling part water inlet chamber 903, exchanges heat with the steam through the heat exchange tube bundles 905, and then flows back to the pipeline heat preservation device 12 through the pre-cooling part water outlet chamber 904, a part of the steam heat is extracted first to be used for pipeline heat preservation to reduce pipeline heat loss, and the cycle is repeated, and it should be noted that a circulating water replenishment pipeline 25 is further connected in the circulating pipeline to replenish the loss of water in the circulating process. After the steam exchanges heat, water droplets are formed on the outer surface of the heat exchange tube bundles 905.

[0077] The mixed cooling part is connected to the pre-cooling part and communicates with the steam flow channel 916, and is used for atomizing water to the steam flow channel 916 to make the steam completely condense into water. Specifically, the mixed cooling part comprises two mixed cooling part water inlet chambers 906, both of which are located on both sides of the steam flow channel 916 and communicate with the cold water atomizing booster pump 14; a plurality of spiral atomizing nozzles 907 are arranged, and the spiral atomizing nozzles 907 are installed on one side of the steam flow channel 916 of the two mixed cooling part water inlet chambers 906, and the spiral atomizing nozzles 907 are provided with a double-stage atomizing mode. The first stage atomizing 908 makes the low-temperature cold water form a spiral fan-shaped jet, the jet angle is between 60-120°, and the jet distance is relatively short; the second stage atomizing 909 makes the low-temperature cold water jet angle 15-30°, the jet distance is half of the entire condenser 9, and the cold water entering the mixed cooling area is ensured to be fully mixed and contacted with the steam. The proportion of the pre-cooling part and the mixed cooling part is that the proportion of the pre-cooling part is 15%-33%, and the proportion of the mixed cooling part is 67%-75%.

[0078] Further, both of the mixed cooling part water inlet chambers 906 are provided with pressure sensors 910 for detecting the water pressure inside the mixed cooling part water inlet chambers 906; temperature sensors 911 are installed on both sides of the mixed cooling part close to the water storage chambers 912, and the temperature sensors 911 are used for detecting the temperature of the steam flow channel 916 in the mixed cooling part. Both of the pressure sensors 910 and the temperature sensors 911 are electrically connected with the controller, and the controller is also electrically connected with the cold water atomizing booster pump 14 in signal connection. At this time, the cold water atomizing booster pump 14 is a variable frequency booster pump 20. When the pressure of the water in the mixed cooling part water inlet chamber 906 drops to 0.05 MPa, the controller receives the signal from the pressure sensor 910 and sends a command to the cold water atomizing booster pump 14 to increase the working frequency, so as to ensure that the pressure in the mixed cooling area water inlet chamber is higher than the atmospheric pressure, and prevent air from entering to affect the vacuum degree of the condenser 9. When the temperature sensor 911 in the steam flow channel 916 sends a signal to the controller, the controller sends a variable frequency command to the cold water atomizing booster pump 14 (when the temperature is lower than 40℃, the frequency of the booster pump is reduced, and when the temperature is higher than 48℃, the frequency of the booster pump is increased), so as to adjust the water injection flow and the atomizing effect, so that the cold water injection flow can be adjusted according to the load fluctuation of the steam turbine 4.

[0079] A water storage chamber 912 is connected to the mixed cooling part and communicates 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 connected to the condensed water pump 10 and a second water outlet 914 connected to the LNG condensed water circulating pump 11. A desalted water supplement interface 915 is further arranged on the water storage chamber 912 and connected to the desalted water supplement pipeline 24. In the system, the LNG condensed water circulating pump 11 and the condensed water pump 10 are both provided with a standby pump 20.

[0080] 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.

[0081] The steam condensation stage S1 includes the following steps:

[0082] S1-1, steam enters the turbine 4 to do work and is discharged into the steam interface part 901, then enters the pre-cooling part to exchange heat with the heat exchange tube bundle 905 to pre-condense part of the steam;

[0083] S1-2, other un-condensed steam enters the mixed cooling part to contact and mix with the cold water sprayed by the left and right spiral atomizing nozzles 907, and the steam is completely condensed into water;

[0084] S1-3, the condensed water enters the water storage chamber 912 for storage, part of which enters the condensed water pump 10 through the condensed water pump 10 interface, and part of which enters the LNG condensed water circulating pump 11 through the LNG condensed water circulating pump 11 interface to be delivered to the pipeline heat preservation device 12 and then to the first LNG gasifier 13;

[0085] The circulating water working stage S2 includes the following steps:

[0086] S2-1, the cooling water enters the circulating water pump 21 through the pre-cooling part outlet to be pressurized and delivered to the LNG condensed water pipeline heat preservation device 12;

[0087] S2-2, the circulating water releases heat in the pipeline heat preservation device 12 to ensure the temperature of the condensed water pipeline, and then returns to the pre-cooling part inlet through the pipeline heat preservation device 12 outlet;

[0088] S2-3, the circulating water enters the pre-cooling part inlet through the pre-cooling part inlet, then enters the heat exchange tube bundle 905, and exchanges heat with the steam to increase the temperature;

[0089] S2-4, the circulating water in the heat exchange tube bundle 905 enters the pre-cooling part outlet and then enters the circulating water pump 21 through the pre-cooling part outlet;

[0090] The cold water working stage S3 includes the following steps:

[0091] S3-1, the cold water is pressurized by the LNG condensate water circulating pump 11, transported to the pipeline insulation device 12, and then to the first LNG gasifier 13 to exchange heat with the LNG, so that the temperature is reduced;

[0092] S3-2, the low-temperature cold water is transported by the pipeline to the cold water atomizing booster pump 14, the cold water is pressurized by the cold water atomizing booster pump 14, and enters the left and right mixing cooling part water inlet chambers 906 of the mixing cooling part;

[0093] S2-3, the cold water entering the mixing cooling part water inlet chamber 906 controls the water amount entering the mixing cooling part water inlet chamber 906 by adjusting the frequency of the cold water atomizing booster pump 14;

[0094] S2-4, the cold water in the mixing cooling part water inlet chamber 906 is sprayed out by the spiral atomizing nozzle 907 to contact and exchange heat with the steam, and finally the cold water is mixed with the condensate water and enters the water storage chamber 912.

[0095] S2-5, the cold water mixed with the condensate water in the water storage chamber 912 is discharged by the condensate pump 10 and the LNG condensate water circulating pump 11 for recycling.

[0096] The reclaimed water recycling assembly is arranged between the biomass power generation assembly and the cooling tower 101, and is used to transport the sewage generated by the biomass power generation assembly to the cooling tower 101 after purification. Specifically, the reclaimed water recycling assembly comprises: a leachate treatment device 6 connected to the biomass storage pool 2 and used to treat the sewage generated by the biomass storage pool 2; and a resource recycling water pump 7 arranged between the leachate treatment device 6 and the cooling tower 101 and used to transport the water treated by the leachate treatment device 6 to the cooling tower 101. In the reclaimed water recycling assembly, a part of water is connected to the data center 1 cold and heat energy conversion assembly through a pipeline and a pressure stabilizing tank 8 to make up for the loss of cold water in the data center 1 cold water circulation process. The pressure stabilizing tank 8 is used to ensure a certain pressure value in the pipeline of the data center 1 cold water circulation system. When the pressure decreases, the leachate purified water supplies water to the pressure stabilizing tank 8 to increase the pressure of the pressure stabilizing tank 8, so as to ensure the pressure of the cold water in the pipeline.

[0097] The data center 1 cold heat energy conversion assembly is connected with the cooling pipeline and is used for cooling 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 data center 1 cold heat energy conversion assembly comprises a third LNG gasifier 22 connected with the cooling pipeline, and the third LNG gasifier 22 is also connected with an LNG liquid storage tank 19 and an LNG storage tank 18. Liquid LNG is returned to the LNG storage tank 18 after being gasified by the third LNG gasifier 22 and is used for exchanging heat with 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 circulating pump 23 is arranged between the third LNG gasifier 22 and the cooling pipeline.

[0098] In further embodiments, the system further comprises a steam heating backup assembly, the steam heating backup assembly comprising a steam turbine 4 first stage extraction port arranged on the steam turbine 4, a second LNG gasifier 15 connected with the steam turbine 4 first stage extraction port, a drain tank 16 connected with the second LNG gasifier 15 and used for receiving drain water after heat exchange of the second LNG gasifier 15, and a drain pump 17 arranged between the drain tank 16 and the biomass boiler 3 and used for conveying the drain water in the drain tank 16 to the biomass boiler 3 for reuse. In winter, the data center 1 adopts free refrigeration, and the cold water circulating pump 105 is used for conveying water in the cooling tower 101 to the server heat exchange equipment 102, the storage equipment heat exchanger 103 and the network equipment heat exchanger 104 in the data center 1, and then returning to the cooling tower 101 so that heat is dissipated to the outdoor, and the cycle is repeated. In winter, the third LNG gasifier 22 is closed, and the heat required by the third LNG gasifier 22 is supplied by the steam turbine 4 first stage extraction of the biomass power plant, and the heat is transmitted to LNG by the second LNG gasifier 15 to make the LNG gasify. In other seasons, the heat generated by the condenser 9 of the biomass power plant and the server heat exchange equipment 102, the storage equipment heat exchanger 103 and the network equipment heat exchanger 104 of the data center 1 is transmitted to the liquid LNG by the first LNG gasifier 13 and the third LNG gasifier 22 to make the LNG gasify, and the LNG system operation is completed, and the second LNG gasifier 15 is used when the heat is insufficient. It should be noted that the first LNG gasifier 13, the second LNG gasifier 15 and the third LNG gasifier 22 are all connected with the LNG liquid storage tank 19 and the LNG storage tank 18, and the liquid LNG is returned to the LNG storage tank 18 after being gasified by the LNG gasifier. The devices not specifically introduced in the utility model are all common devices on the market, and the specific connection relationship is also a common connection relationship. The utility model does not make too much elaboration.

[0099] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle 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 co-utilization system, characterized in that, The application relates to a data center cooling system. The data center cooling system comprises a data center, a biomass power generation assembly, a middle water recycling assembly and a data center cold-heat energy conversion assembly. The data center is composed of a cooling tower, an electric device and a cooling pipeline of the electric device, the cooling pipeline is communicated with the cooling tower, and the cooling pipeline is used for cooling the electric device. The biomass power generation assembly is electrically connected with the electric device through an electric wire, and is used for providing electric energy for the electric device. The middle water recycling assembly is arranged between the biomass power generation assembly and the cooling tower, and is used for conveying sewage generated by the biomass power generation assembly to the cooling tower after purification. The data center cold-heat energy conversion assembly is communicated with the cooling pipeline, and is used for cooling water in the cooling pipeline.

2. The LNG, biomass power plant and data center energy co-utilization system according to claim 1, characterized in that, The biomass power plant cold-heat energy conversion assembly is arranged on the biomass power generation assembly, and is used for recycling steam heat energy through LNG condensate water medium. The biomass power generation assembly comprises a biomass storage pool, a biomass boiler, a steam turbine and a generator. The biomass storage pool is mainly used for decomposing and converting biomass into renewable energy. The biomass boiler is connected with the biomass storage pool through a conveying machine. The steam turbine is connected with the biomass boiler through a pipeline.

3. The LNG, biomass power plant and data center energy co-utilization system according to claim 2, characterized in that, The generator is connected with the steam turbine, converts mechanical energy of the steam turbine into electric energy, and is electrically connected with the electric device. The biomass power plant cold-heat energy conversion assembly comprises a condenser, a condensate water pump, an LNG condensate water circulating pump, a first LNG gasifier and a cold water atomization booster pump. The condenser is connected with the steam turbine. The pre-cooling part is communicated with the pipeline heat preservation device, and forms a closed circulating water flow channel. The mixed cooling part is connected with the pre-cooling part and the steam flow channel. The water storage chamber is connected with the mixed cooling part and the steam flow channel.

4. The LNG, biomass power plant and data center energy co-utilization system according to claim 3, characterized in that, The pre-cooling part comprises a first LNG gasifier, a condensate water pump, an LNG condensate water circulating pump, a cold water atomization booster pump and a condenser. ​ ​ ​ ​ 5. The LNG, biomass power plant and data center energy co-utilization system according to claim 4, characterized in that, ​ A pre-cooling water inlet chamber is in communication with the pipeline heat preservation device; A pre-cooling water outlet chamber is in communication with the pipeline heat preservation device; A plurality of heat exchange tube bundles are arranged between the pre-cooling water inlet chamber and the pre-cooling water outlet chamber, and the heat exchange tube bundles form the steam flow channel therebetween, and the heat exchange tube bundles are internally provided with spiral threads; A circulating water pump is arranged between the pre-cooling water outlet chamber and the pipeline heat preservation device. The mixed cooling part comprises:

6. The LNG, biomass power plant and data center energy co-utilization system according to claim 5, characterized in that, Two mixed cooling water inlet chambers are arranged on both sides of the steam flow channel, and the mixed cooling water inlet chambers are in communication with the cold water atomizing booster pump; A plurality of spiral atomizing nozzles are arranged on one side of the mixed cooling water inlet chamber. Pressure sensors are arranged on both sides of the mixed cooling water inlet chamber to detect the water pressure in the mixed cooling water inlet chamber; 7. The LNG, biomass power plant and data center energy co-utilization system according to claim 6, characterized in that: Temperature sensors are arranged on both sides of the mixed cooling water inlet chamber to detect the temperature of the steam flow channel in the mixed cooling part. The reclaimed water recycling assembly comprises:

8. The LNG, biomass power plant and data center energy co-utilization system according to claim 2 or 7, characterized in that: A leachate treatment device is connected to the biomass storage pool to treat sewage generated by the biomass storage pool; A resource recycling water pump is arranged between the leachate treatment device and the cooling tower to deliver water treated by the leachate treatment device to the cooling tower. A steam heating standby assembly is further included, and the steam heating standby assembly comprises a steam turbine first-stage steam extraction port arranged on the steam turbine; 9. The LNG, biomass power plant and data center energy co-utilization system according to claim 8, characterized in that: A second LNG gasifier is connected to the steam turbine first-stage steam extraction port, A drain tank is connected to the second LNG gasifier to receive drain water after heat exchange of the second LNG gasifier; A drain pump is arranged between the drain tank and the biomass boiler to deliver drain water in the drain tank to the biomass boiler. The data center cold and heat energy conversion assembly comprises:

10. The LNG, biomass power plant and data center energy co-utilization system according to claim 9, characterized in that: A third LNG gasifier is in communication with the cooling pipeline to perform heat exchange on water in the cooling pipeline; A data center cold water circulating pump is arranged between the third LNG gasifier and the cooling pipeline. ​

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