CN115057759A - Distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production - Google Patents
Distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production Download PDFInfo
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- CN115057759A CN115057759A CN202210812870.3A CN202210812870A CN115057759A CN 115057759 A CN115057759 A CN 115057759A CN 202210812870 A CN202210812870 A CN 202210812870A CN 115057759 A CN115057759 A CN 115057759A
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 210
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000001257 hydrogen Substances 0.000 title claims abstract description 117
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 117
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 70
- 238000004146 energy storage Methods 0.000 title claims abstract description 67
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000003860 storage Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 42
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 42
- 238000002360 preparation method Methods 0.000 claims abstract description 32
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 26
- 238000012983 electrochemical energy storage Methods 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims abstract description 16
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910052987 metal hydride Inorganic materials 0.000 claims description 3
- 150000004681 metal hydrides Chemical class 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005518 electrochemistry Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
- C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
- H01M8/0668—Removal of carbon monoxide or carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
Abstract
The application relates to a distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production, which comprises a pure water preparation system, a water electrolysis hydrogen production system, a hydrogen storage system, a hydrogen fuel cell system, a carbon dioxide storage system, a carbon dioxide hydrogenation methanol production system, a methanol storage system, an electrochemical energy storage system, an energy storage inversion cabinet, an electrical cabinet, an operation cabinet, a temperature control system and a fire fighting system. Through combining together electrochemistry energy storage, hydrogen energy storage, methyl alcohol energy storage, realize more nimble energy storage mode, when charge-discharge response speed is high, reach longer cycle, the energy storage demand of large capacity. When the distributed scene such as a new energy station is oriented, the container type movable energy storage mode has higher adaptability.
Description
Technical Field
The application belongs to the technical field of energy storage, and particularly relates to a distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production.
Background
In order to better promote social progress and realize sustainable development, the production of clean energy is gradually emphasized. The near consumption of clean energy is particularly important, the energy utilization efficiency of different areas can be improved, and the stable development of the areas is promoted.
The distributed comprehensive energy system is an energy development and utilization mode arranged on a user side, has the characteristics of on-site utilization, cleanness, low carbon, multi-element interaction, flexibility, high efficiency and the like, and is an indispensable important component of a modern energy system.
China vigorously promotes the development of distributed energy, and adheres to the principle that centralized development and distributed development are combined, distributed utilization is taken as a main part, and the high-proportion development of renewable energy is promoted. When the power generation load of the distributed energy is inconsistent with the load required by the power grid, the distributed comprehensive energy system is required to adjust and absorb the power load in forms of energy storage and the like, so that the efficient utilization of energy is realized. When the distributed comprehensive energy system is oriented to scenes such as a distributed new energy station and an active power distribution network, the flexible and efficient distributed comprehensive energy system is required to support.
The patent with the application number of CN202111339246.8 discloses a distributed comprehensive energy system for a data center, which proposes a method of combining a waste heat utilization system and an energy storage battery device, and is oriented to an application scenario of the data center, so that waste heat generated by the data center is effectively utilized, UPS batteries are effectively utilized, the total power consumption of the data center is reduced, and electricity charges are saved. However, the energy storage mode of the invention is single, and the application scene limitation is large.
The patent with the application number of CN202210043308.9 discloses a CHP and water source heat pump comprehensive energy system and a control method thereof, wherein a workshop waste heat system is utilized, the temperature is raised through a heat pump to supply heat to surrounding customers, a CHP system is used as a standby heat source to carry out load peak regulation, and in addition, the CHP system and a boiler can provide steam service for users. However, the present invention is primarily directed to the storage and utilization of heat and does not allow for the consumption and support of electrical loads.
The patent with the application number of CN202210183784.0 discloses a comprehensive energy system, a scheduling method and a scheduling system based on multi-energy complementation, which are applied to the technical field of comprehensive energy scheduling. The comprehensive energy system comprises a combined cooling heating and power supply module, a cooling device, a heating device and an energy storage module; the combined cooling heating and power module is used for supplying power by using natural gas, performing waste heat recovery treatment on heat energy generated during power supply, and respectively supplying heat and cooling according to the waste heat recovery treatment; the cooling equipment is used for assisting cooling; the heating equipment is used for auxiliary heating; the energy storage module is used for charging and discharging electric energy, heat energy and cold energy. However, the invention has large occupied area and investment and is not suitable for the scene of distributed energy.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the distributed comprehensive energy system integrates energy storage, hydrogen production and methanol production into a whole to solve the problems of insufficient flexibility, low adaptability and poor residual electricity consumption capability of an energy storage system in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production comprises a pure water preparation system, a water treatment system and a water treatment system, wherein the pure water preparation system is used for preparing pure water, so that pure water and wastewater can be separated from raw water entering the pure water preparation system, and the wastewater can be discharged;
the system comprises an electrolytic water hydrogen production system, a pure water preparation system and a hydrogen storage system, wherein the electrolytic water hydrogen production system is connected with the pure water preparation system, pure water generated by the pure water preparation system is introduced into the electrolytic water hydrogen production system, hydrogen and oxygen are separated from the pure water in an electrolytic manner, and the hydrogen is introduced into the hydrogen storage system;
the hydrogen storage system is connected with the water electrolysis hydrogen production system and stores the hydrogen generated in the water electrolysis hydrogen production system;
the hydrogen fuel cell system is connected with the hydrogen storage system, and hydrogen in the hydrogen storage system enters the hydrogen fuel cell system to generate electricity;
a carbon dioxide storage system for storing carbon dioxide gas;
the system comprises a carbon dioxide hydrogenation methanol preparation system, a carbon dioxide storage system and a hydrogen storage system, wherein the carbon dioxide hydrogenation methanol preparation system is connected with the carbon dioxide storage system and the hydrogen storage system, and carbon dioxide gas entering a hydrogen fuel cell system and hydrogen enter the carbon dioxide hydrogenation methanol preparation system together to prepare a methanol product; and introducing the methanol into a methanol storage system;
the methanol storage system is connected with the carbon dioxide hydrogenation methanol preparation system, and the methanol generated in the carbon dioxide hydrogenation methanol preparation system is stored in the methanol storage system;
and the energy storage inverter cabinet is respectively connected with the electrochemical energy storage system and the hydrogen fuel cell system and is used for controlling the conversion of alternating current and direct current.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production further comprises an electrical cabinet, an operation cabinet and a temperature control system, wherein the electrical cabinet controls an alternating current power supply required by each system, the operation cabinet controls the operation state and data monitoring of each system, and the temperature control system controls the air temperature in the container, the operation temperature of the hydrogen storage system and the operation temperature of the carbon dioxide hydrogenation methanol production system.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is characterized in that hardware of the system is arranged in a container, the interior of the container is divided into a plurality of areas in the form of isolation doors, the electrical cabinet and the operation cabinet are respectively positioned in the independent areas at two ends in the container, and the electrochemical energy storage system is independently positioned in the middle area.
Preferably, the hydrogen storage system adopts a metal hydride hydrogen storage mode, releases heat when storing hydrogen and absorbs heat when releasing hydrogen.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is set to be 50-300 ℃ at the working temperature, and heat is released in the operation process of preparing methanol by carbon dioxide hydrogenation.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is internally provided with a heat exchanger, and the heat exchanger is used for exchanging and coupling heat of the hydrogen storage system and the carbon dioxide hydrogenation methanol production system so as to maintain the optimal temperature required by the system operation.
Preferably, the operation cabinet is used for monitoring the operation data of each system, analyzing and controlling the operation states of electrochemical energy storage and hydrogen energy storage, preferentially performing electrochemical energy storage and energy supply during day-to-day peak-valley difference adjustment, and preferentially performing hydrogen energy storage and energy supply during weather or climate long-period power peak-valley adjustment.
Preferably, the operation cabinet is set to complete the mutual switching of the working states of energy storage, standby and energy supply of the whole system within 1s of receiving the energy storage running state change signal, and maintain the stability.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is further provided with a fire fighting system, and the fire fighting system is used for monitoring the temperature of each hardware device in the container and carrying out fire fighting when fire occurs.
Preferably, the distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is characterized in that oxygen and hydrogen produced by water electrolysis in the water electrolysis hydrogen production system are separated and are separately collected and stored.
The invention has the beneficial effects that: 1. the invention combines the technical advantages of electrochemical energy storage, hydrogen energy storage and methanol energy storage, can simultaneously realize the application scenes of day-to-day peak-valley difference, weather or climate equal-period power peak-valley adjustment and the like, and the methanol product has the characteristics of high energy density, convenient transportation and the like, so that the energy storage system has higher flexibility.
2. The invention has the advantages of miniaturization, modularization, mobility and the like, and has higher adaptability when aiming at distributed energy storage scenes such as new energy stations and the like.
3. When the invention is oriented to a new energy station with residual electric quantity for a long time, the invention can break through the limitation that the traditional electrochemical energy storage only has fixed capacity, can continuously convert the residual electric quantity into hydrogen and methanol products, and has stronger capacity for absorbing the residual electric quantity of the new energy.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
Fig. 1 is a schematic diagram of connection relationships and position distribution in an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
The embodiment provides a distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production, and referring to fig. 1, the system comprises a pure water preparation system, a water electrolysis hydrogen production system, a hydrogen storage system, a hydrogen fuel cell system, a carbon dioxide storage system, a carbon dioxide hydrogenation methanol production system, a methanol storage system, an electrochemical energy storage system and an energy storage inverter cabinet; pure water generated by the pure water preparation system is introduced into the electrolyzed water hydrogen production system; the water electrolysis hydrogen production system prepares hydrogen and oxygen in an electrolysis mode, the oxygen and the hydrogen are separately collected and stored, the oxygen product is used for other production purposes, and the hydrogen is introduced into the hydrogen storage system; introducing part of hydrogen in the hydrogen storage system into a hydrogen fuel cell system to generate electricity; the other part of hydrogen in the hydrogen storage system and the carbon dioxide gas in the carbon dioxide storage system enter a methanol preparation system by carbon dioxide hydrogenation together to prepare a methanol product and are introduced into the methanol storage system; the energy storage inversion cabinet is respectively connected with the electrochemical energy storage system and the hydrogen fuel cell system and is used for controlling the conversion of alternating current and direct current; the system also comprises an electric cabinet, an operation cabinet and a temperature control system, wherein the electric cabinet controls an alternating current power supply required by each system, the operation cabinet controls the operation state and data monitoring of each system, and the temperature control system controls the air temperature in the container, the operation temperature of the hydrogen storage system and the operation temperature of the carbon dioxide hydrogenation methanol preparation system;
in this embodiment, the hardware of the system is arranged in the container, a 40-foot universal container is adopted, the system layout refers to fig. 1, the container is divided into 4 areas, the areas are separated by isolation doors, wherein the energy storage inverter cabinet and the electrical cabinet are positioned in the frontmost area, the operation cabinet and the fire protection system are positioned in the rearmost area, the pure water preparation system, the electrolyzed water hydrogen production system, the hydrogen storage system, the hydrogen fuel cell system, the carbon dioxide storage system, the carbon dioxide hydrogenation methanol production system, the methanol storage system and the temperature control system are positioned in the same area, and the electrochemical energy storage system is positioned in a single area. The maximum energy storage power of the container energy storage system is set to be 150kW, the maximum energy supply power is set to be 200kW, the capacity of the electrochemical energy storage system is set to be 500 kW.h, and the corresponding time for switching the energy storage operation state of the system is 150 ms.
Hydrogen storage systems use metal hydrides to store hydrogen and release heat when storing hydrogen and absorb heat when releasing hydrogen. The working temperature of the carbon dioxide hydrogenation methanol preparation system is set to be 50-300 ℃, and heat is released in the operation process of preparing methanol by carbon dioxide hydrogenation. The temperature control system is internally provided with a heat exchanger which exchanges and couples heat of the hydrogen storage system and the carbon dioxide hydrogenation methanol preparation system, maintains the temperature requirement during the operation of the system and keeps the optimal temperature working state of each system.
In this embodiment, the operation cabinet is used for monitoring the operation data of each system, and the running state of analysis control electrochemistry energy storage and hydrogen energy storage carries out electrochemistry energy storage and energy supply preferentially when the peak-valley difference between the days is adjusted, carries out hydrogen energy storage and energy supply preferentially when adjusting towards weather or the long-period electric power peak-valley such as weather. The operation cabinet is set to complete the mutual switching of the working states of the energy storage, standby and energy supply of the whole system within 1s of the received energy storage running state change signal, and maintain the stable running of the working states of all the systems.
This system still is provided with fire extinguishing system, and fire extinguishing system is used for monitoring each hardware device's in the container temperature, carries out the fire control when the condition of a fire and puts out a fire, avoids taking place the conflagration.
Example 2
The container is divided into 5 areas, and the areas are separated by isolation doors, wherein an energy storage inverter cabinet and an electrical cabinet are located in the frontmost area, an operation cabinet and a fire protection system are located in the rearmost area, a pure water preparation system, an electrolyzed water hydrogen production system, a hydrogen storage system, a hydrogen fuel cell system and a temperature control system are located in the same area, a carbon dioxide storage system, a carbon dioxide hydrogenation methanol preparation system and a methanol storage system are located in the same area, and an electrochemical energy storage system is located in a single area. The maximum energy storage power of the container energy storage system is 200kW, the maximum energy supply power is 300kW, the capacity of the electrochemical energy storage system is 1MW & h, and the corresponding time for switching the energy storage operation state of the system is 150 ms.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production is characterized by comprising:
a pure water preparation system for preparing pure water, separating pure water and wastewater from raw water entering the pure water preparation system, and discharging the wastewater;
the water electrolysis hydrogen production system is connected with the pure water preparation system, pure water in the water electrolysis hydrogen production system is introduced, and hydrogen and oxygen are separated in an electrolysis mode;
the hydrogen storage system is connected with the water electrolysis hydrogen production system and is used for storing the hydrogen generated in the water electrolysis hydrogen production system;
a hydrogen fuel cell system connected to the hydrogen gas storage system to generate electricity from the hydrogen gas introduced into the hydrogen fuel cell system;
a carbon dioxide storage system for storing carbon dioxide gas;
the system comprises a carbon dioxide hydrogenation methanol preparation system, a carbon dioxide storage system and a hydrogen storage system, wherein the carbon dioxide hydrogenation methanol preparation system is connected with the carbon dioxide storage system and the hydrogen storage system, and carbon dioxide gas entering a hydrogen fuel cell system and hydrogen enter the carbon dioxide hydrogenation methanol preparation system together to prepare a methanol product; and introducing the methanol into a methanol storage system;
the methanol storage system is connected with the carbon dioxide hydrogenation methanol preparation system and is used for storing the methanol generated in the carbon dioxide hydrogenation methanol preparation system;
the electrochemical energy storage system is connected with the hydrogen fuel cell system, so that electricity generated by the hydrogen fuel cell system can be stored;
and the energy storage inverter cabinet is respectively connected with the electrochemical energy storage system and the hydrogen fuel cell system and is used for controlling the conversion of alternating current and direct current.
2. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 1, wherein: the system comprises a container, a hydrogen storage system, an operation cabinet and a temperature control system, wherein the container is provided with a container, the container is provided with a hydrogen storage system, the operation cabinet is connected with each power utilization system and is used for providing an alternating current power supply required by each system, the operation cabinet is used for controlling the operation state and data monitoring of each system, and the temperature control system is used for controlling the air temperature in the container, the operation temperature of the hydrogen storage system and the operation temperature of the carbon dioxide hydrogenation methanol preparation system.
3. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 2, wherein: the electrical cabinet, the operation cabinet and the electrochemical energy storage system are arranged in the container, the interior of the container is divided into a plurality of areas in the form of isolation doors, the electrical cabinet and the operation cabinet are respectively positioned in the two end independent areas in the container, and the electrochemical energy storage system is independently positioned in the middle area.
4. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in any one of claims 1 to 3, wherein: the hydrogen storage system adopts a metal hydride hydrogen storage mode, releases heat when storing hydrogen and absorbs heat when releasing hydrogen.
5. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 1, wherein: the working temperature of the carbon dioxide hydrogenation methanol preparation system is set to be 50-300 ℃, and heat is released in the running process of preparing methanol by carbon dioxide hydrogenation.
6. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 2, wherein: the temperature control system is internally provided with a heat exchanger which exchanges and couples heat between the hydrogen storage system and the carbon dioxide hydrogenation methanol preparation system, and maintains the optimal temperature required by the system during operation.
7. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 6, wherein: the operation cabinet is used for monitoring the operation data of each system, analyzing and controlling the operation states of electrochemical energy storage and hydrogen energy storage, preferentially performing electrochemical energy storage and energy supply during day-to-day peak-valley difference adjustment, and preferentially performing hydrogen energy storage and energy supply during weather or climate long-period power peak-valley adjustment.
8. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production according to claim 7, characterized in that: the operation cabinet is set to complete the mutual switching of the working states of the energy storage, standby and energy supply of the whole system within 1s of the change signal of the energy storage running state, and the working states are maintained stable.
9. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 3, wherein: still be provided with fire extinguishing system, fire extinguishing system is used for monitoring each hardware device's in the container temperature, carries out the fire control when having the condition of a fire and puts out a fire.
10. The distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production as claimed in claim 1, wherein: oxygen and hydrogen generated by water electrolysis in the water electrolysis hydrogen production system are separated and are separately collected and stored.
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| CN202210812870.3A CN115057759A (en) | 2022-07-11 | 2022-07-11 | Distributed comprehensive energy system integrating energy storage, hydrogen production and methanol production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115806469A (en) * | 2022-12-26 | 2023-03-17 | 中国重汽集团济南动力有限公司 | Biomass carbon neutralization fuel overall energy storage production method based on alcohol-water fixation |
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