CN112701771A - Near-zero energy consumption zero-carbon building multi-energy complementary energy supply system and method - Google Patents
Near-zero energy consumption zero-carbon building multi-energy complementary energy supply system and method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
- F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/272—Solar heating or cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention relates to a near-zero energy consumption zero-carbon building multi-energy complementary energy supply system which comprises a building roof photovoltaic system, an electrochemical energy storage system, a hydrogen energy system, a heat supply system and an injection type refrigerating system, wherein the heat supply system is respectively connected with the hydrogen energy system and the injection type refrigerating system. In order to fully consume the self renewable energy of the building body, the invention adopts two forms of electrochemical energy storage and hydrogen energy storage, can coordinate and solve the energy storage problem, improves the energy density of the energy storage system, can reduce the charging and discharging times and the charging and discharging depth of the electrochemical energy storage, and prolongs the service life of the energy storage system.
Description
Technical Field
The invention belongs to the field of comprehensive utilization of energy, relates to clean energy, and particularly relates to a near-zero energy consumption zero-carbon building multi-energy complementary energy supply system and method.
Background
The carbon emission peak-reaching target and the carbon neutralization vision provide requirements for low-carbon transformation of energy and electricity, the building energy consumption in China currently accounts for about 1/3 of the total national energy consumption, the energy consumption is only the proportion of the energy consumed by a building body in the building and using processes, if the energy consumed in the building material production process (accounts for 16.7 percent of the total social energy consumption), the energy consumption related to the building accounts for 46.7 percent of the total social energy consumption, and the carbon dioxide gas emitted by the building body accounts for 40 percent of the total global emission. Such a large amount of energy consumption and carbon dioxide emission are imperative to greatly reduce the energy consumption and carbon emission of the building.
At present, the design concept of a plurality of near-zero energy consumption buildings is based on the fact that the generated energy meets the electricity consumption, renewable energy is utilized to meet the electricity consumption requirement of the buildings, and an electrochemical energy storage system is matched for source-charge fluctuation adjustment. The energy consumption of the building body comprises electricity, heat and cold, and if the self-sufficiency of the electric energy is only considered, the realization difficulty is increased and the energy waste is caused; the electrochemical energy storage service life is limited, is related to the charging and discharging times, and a large-capacity energy storage system cannot be arranged to store the difference value between the renewable energy power generation load and the electricity utilization load of the building body in the limited building area and the consideration of investment economy, so that the waste of partial energy is caused.
The hydrogen energy is used as a flexible green energy carrier to replace the current hydrocarbon energy, zero pollution and zero carbon emission can be really realized by utilizing renewable energy to electrolyze water to prepare hydrogen, the energy density is high, energy dissipation does not exist in the storage process, waste heat is generated in the power generation process of the electrolyzed water and hydrogen fuel cell, the comprehensive utilization efficiency is high, and the power and heat requirements can be provided for buildings.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a near-zero energy consumption and zero carbon building multi-energy complementary energy supply system, couples and integrates a building roof photovoltaic system, an electrochemical energy storage and hydrogen energy system, a heating system and an injection type refrigerating system, meets various energy using requirements of building electricity, heat, cold and hot water, and realizes the annual dynamic zero energy consumption operation of a building.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides a nearly zero energy consumption zero carbon building multipotency complementary energy supply system, includes building body roof photovoltaic system, electrochemistry energy storage system, hydrogen energy system, heating system, injection formula refrigerating system, and hydrogen energy system and injection formula refrigerating system are connected respectively to the heating system.
Moreover, building body roof photovoltaic system include solar module, solar module connects electrochemistry energy storage system and inverter, converts the consumer power supply of this energy supply system into through the inverter.
Moreover, the hydrogen energy system comprises an electrolytic cell, a hydrogen storage device and a hydrogen fuel cell which are connected in sequence, the electric energy generated by photovoltaic is utilized to electrolyze water to produce hydrogen, and the hydrogen energy is stored in the hydrogen storage device through a compressor.
The heat supply system comprises a heat medium sharing box, two plate heat exchangers, a heat supply coil and a heat storage water tank, wherein the heat medium sharing box is respectively connected with the electrolytic cell and the hydrogen fuel cell, waste heat generated in the process of hydrogen production by water electrolysis and the operation of the hydrogen fuel cell is recovered and stored in the box, the heat medium sharing box is connected with the two plate heat exchangers and supplies heat in two ways, and one way exchanges heat through the plate heat exchangers in the heating season to provide heat for the heat supply coil; the other path exchanges heat through a plate heat exchanger to provide heat for domestic water.
And the injection refrigeration system comprises an injector, a condenser, a throttle valve, an evaporator and a working medium pump, wherein a water inlet of the injector is connected with the heat medium common box, an air inlet of the injector is connected with the evaporator, an outlet of the injector is connected with an inlet of the condenser, an outlet of the condenser is divided into two paths, one path is connected with the evaporator through the throttle valve, and the other path is connected with the heat medium common box through the working medium pump.
A near-zero energy consumption zero-carbon building multi-energy complementary energy supply method comprises the following steps:
when the photovoltaic power generation load is larger than the building energy load, redundant electric energy is stored in the electrochemical energy storage system and is used for producing hydrogen by electrolyzing water, the produced hydrogen is compressed and stored in the hydrogen storage tank through the compressor, and the waste heat in the hydrogen production process by electrolyzing water is collected in the heating medium shared box through heat exchange;
when the photovoltaic power generation load is smaller than the building energy load, an electrochemical energy storage and hydrogen energy system is cooperatively allocated and started to supply energy according to the building electricity and heat load requirements, wherein a hydrogen fuel cell supplies power, and a large amount of waste heat is collected in a heating medium shared box;
the heating medium common tank collects the waste heat generated when the hydrogen energy system operates, when the heat is insufficient, the electric heating is assisted for heating, and domestic hot water generated by heat exchange of the first plate heat exchanger is stored in the heat storage water tank; in the heating season, heat is exchanged through the second plate heat exchanger to supply heat to the heating coil pipe, so that the building body is heated; in the cooling season, hot water is introduced into the ejector, mixed with low-pressure steam introduced from the evaporator, and then condensed in the condenser; the condensed water is divided into two paths, one path of the condensed water enters the evaporator after being depressurized and cooled through the throttle valve, and the condensed water absorbs heat and is vaporized in the evaporator to realize the refrigeration effect; one path is pumped back to the heating medium public box by the working medium pump to complete circulation.
The invention has the advantages and positive effects that:
1. in order to fully consume the self renewable energy of the building body, the invention adopts two forms of electrochemical energy storage and hydrogen energy storage, can coordinate and solve the energy storage problem, improves the energy density of the energy storage system, can reduce the charging and discharging times and the charging and discharging depth of the electrochemical energy storage, and prolongs the service life of the energy storage system.
2. The hydrogen energy system is a very stable energy supply system, can provide electric energy and heat energy for a building body at the same time, and has high energy gradient utilization rate. Under the conditions of power shortage and power failure, the energy requirement of the building can be maintained for more than ten hours.
3. The jet type refrigerating system does not consume mechanical work, has low manufacturing cost, simple operation and maintenance, consumes a small amount of electric energy, takes water as a working medium, saves energy and is environment-friendly.
4. The whole system of the invention takes renewable energy power generation as a source, utilizes electrochemistry and hydrogen energy as energy storage to realize the adjustment of building source-charge fluctuation, fully utilizes the heat generated in the processes of hydrogen production by water electrolysis and hydrogen fuel cell power generation, combines a jet refrigeration system to realize the combined supply of cold, heat and electricity to the building body, and truly realizes the zero-energy-consumption and zero-carbon operation of the building body.
5. The invention fully utilizes the waste heat of the hydrogen energy system and provides cold energy for the building by combining with the jet type refrigerating system. The jet type refrigerating system has the advantages of simple structure, low consumption of electric energy, low metal consumption, low manufacturing cost, high running reliability, long service life, simplicity in operation and higher economy. And the operation working medium is water, so that the system is more environment-friendly compared with the traditional refrigeration system.
6. The invention fully utilizes the self renewable energy power generation system of the building body, and is provided with the electrochemical energy storage system and the hydrogen energy system to realize the source-load fluctuation regulation; the waste heat of make full use of hydrogen energy system can satisfy the domestic water of the building body and the heating demand of heating period to combine injection formula refrigerating system, satisfy the cold demand of the building body. The system can realize the electric energy conversion of renewable energy sources and the cascade utilization of energy, achieves the effect of zero carbon emission, and has a very strong utilization prospect.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Wherein: the system comprises a solar cell module 1, an electrochemical energy storage device 2, an electrolytic tank 3, a hydrogen storage device 4, a hydrogen fuel cell 5, a heating medium sharing box 6, an electric auxiliary heater 7, a first plate heat exchanger 8, a heat storage water tank 9, a second plate heat exchanger 10, a heat supply coil 11, an ejector 12, an evaporator 13, a condenser 14, a throttle valve 15 and a working medium pump 16.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
A near-zero energy consumption zero-carbon building multi-energy complementary energy supply system comprises a building roof photovoltaic system 1, an electrochemical energy storage system 2, a hydrogen energy system, a heat supply system and an injection type refrigerating system.
The building roof photovoltaic system comprises a solar cell module, the solar cell module is sequentially connected with an electrochemical energy storage system and an inverter, an electric auxiliary heater 7 of a heating medium sharing box is converted into the inverter, and a working medium pump of an injection refrigeration system and other electric equipment provide electric energy.
The hydrogen energy system comprises an electrolytic cell 3, a hydrogen storage device 4 and a hydrogen fuel cell 5 which are connected in sequence. The electric energy generated by photovoltaic is utilized to electrolyze water to produce hydrogen, the hydrogen energy is stored in the hydrogen storage device through the compressor, and under the condition of insufficient photovoltaic power generation load, the electric energy is provided for the building body through the coordination and coordination of electrochemical energy storage and the hydrogen fuel cell.
The heating system comprises a heating medium shared box 6, two sets of plate heat exchangers 8 and 10, a heating disc 11 and a heat storage water tank 9. The heating medium sharing box is respectively connected with the electrolytic cell and the hydrogen fuel cell, waste heat generated in the hydrogen production by the electrolyzed water and the operation of the hydrogen fuel cell is recovered and stored in the box, the heating medium sharing box is connected with the two plate heat exchangers and supplies heat in two ways, and one way exchanges heat through the second plate heat exchanger 10 in a heating season to provide heat for the heating coil; the other path exchanges heat through a first plate heat exchanger 8, and tap water is heated and stored in a heat storage water tank for domestic water.
The injection refrigeration system comprises an injector 12, a condenser 14, a throttle valve 15, an evaporator 13 and a working medium pump 16. The water inlet of the ejector is connected with the heat medium common box, the air inlet of the ejector is connected with the evaporator, the outlet of the ejector is connected with the inlet of the condenser, the outlet of the condenser is divided into two paths, one path is connected with the evaporator through the throttle valve, and the other path is connected with the heat medium common box through the working medium pump. Hot water of the heat medium common tank is introduced into the ejector, expands in the spray pipe to obtain high-speed airflow, is mixed with low-pressure steam introduced from the evaporator and then enters the condenser for condensation; the condensed water is divided into two paths. One path of the refrigerant enters an evaporator after being depressurized and cooled by a throttle valve, and absorbs heat and vaporizes in the evaporator to realize the refrigeration effect; one path is pumped back to the heating medium public box by the working medium pump to complete circulation.
When renewable energy power generation load is greater than the energy load for building, redundant electric energy is stored in the electrochemistry energy storage system and is used for the electrolytic water hydrogen production, and the hydrogen of output is stored in the hydrogen storage tank through the compressor compression, and the waste heat of electrolytic water hydrogen production in-process is collected in the heat medium sharing case by the heat transfer.
When renewable energy power generation load is less than energy load for the building, according to building electricity, heat load demand, the cooperation is allocated and is started electrochemistry energy storage and hydrogen energy system and carry out the energy supply, and wherein when hydrogen fuel cell powered, a large amount of waste heat is collected in heat medium sharing case.
The heating medium sharing box mainly collects the residual heat generated during the operation of the hydrogen energy system, and can assist electric heating to heat when the heat is insufficient. Domestic hot water generated by heat exchange of the first plate heat exchanger 8 is stored in the heat storage water tank; in the heating season, heat can be exchanged through the second plate heat exchanger 10 to supply heat to the heating coil pipe, so that the building body is heated; in the cooling season, hot water is introduced into the ejector, mixed with low-pressure steam introduced from the evaporator, and then condensed in the condenser; the condensed water is divided into two paths. One path of the refrigerant enters an evaporator after being depressurized and cooled by a throttle valve, and absorbs heat and vaporizes in the evaporator to realize the refrigeration effect; one path is pumped back to the heating medium public box by the working medium pump to complete circulation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. The utility model provides a nearly zero energy consumption zero carbon building multipotency complementary energy supply system which characterized in that: the system comprises a building roof photovoltaic system, an electrochemical energy storage system, a hydrogen energy system, a heating system and an injection type refrigerating system, wherein the heating system is respectively connected with the hydrogen energy system and the injection type refrigerating system.
2. The near-zero energy consumption zero carbon building multi-energy complementary energy supply system of claim 1, wherein: the building roof photovoltaic system comprises a solar cell module, wherein the solar cell module is connected with an electrochemical energy storage system and an inverter, and the inverter is used for converting the electrochemical energy storage system into power for power utilization equipment of the energy supply system.
3. The near-zero energy consumption zero carbon building multi-energy complementary energy supply system of claim 1, wherein:
the hydrogen energy system comprises an electrolytic cell, a hydrogen storage device and a hydrogen fuel cell which are connected in sequence, the electric energy generated by photovoltaic is utilized to electrolyze water to produce hydrogen, and the hydrogen energy is stored in the hydrogen storage device through a compressor.
4. The near-zero energy consumption zero carbon building multi-energy complementary energy supply system of claim 1, wherein:
the heat supply system comprises a heat medium sharing box, two plate type heat exchangers, a heat supply coil and a heat storage water tank, wherein the heat medium sharing box is respectively connected with an electrolytic cell and a hydrogen fuel cell, waste heat generated in the process of hydrogen production by water electrolysis and the operation of the hydrogen fuel cell is recovered and stored in the box, the heat medium sharing box is connected with the two plate type heat exchangers and supplies heat in two ways, and one way exchanges heat through the plate type heat exchangers in the heating season to provide heat for the heat supply coil; the other path exchanges heat through a plate heat exchanger to provide heat for domestic water.
5. The near-zero energy consumption zero carbon building multi-energy complementary energy supply system of claim 1, wherein: the injection refrigeration system comprises an injector, a condenser, a throttle valve, an evaporator and a working medium pump, wherein a water inlet of the injector is connected with a heating medium common box, an air inlet of the injector is connected with the evaporator, an outlet of the injector is connected with an inlet of the condenser, an outlet of the condenser is divided into two paths, one path is connected with the evaporator through the throttle valve, and the other path is connected with the heating medium common box through the working medium pump.
6. The near-zero energy consumption zero-carbon building multi-energy complementary energy supply method according to claim 1, characterized in that:
when the photovoltaic power generation load is larger than the building energy load, redundant electric energy is stored in the electrochemical energy storage system and is used for producing hydrogen by electrolyzing water, the produced hydrogen is compressed and stored in the hydrogen storage tank through the compressor, and the waste heat in the hydrogen production process by electrolyzing water is collected in the heating medium shared box through heat exchange;
when the photovoltaic power generation load is smaller than the building energy load, an electrochemical energy storage and hydrogen energy system is cooperatively allocated and started to supply energy according to the building electricity and heat load requirements, wherein a hydrogen fuel cell supplies power, and a large amount of waste heat is collected in a heating medium shared box;
the heating medium common tank collects the waste heat generated when the hydrogen energy system operates, when the heat is insufficient, the electric heating is assisted for heating, and domestic hot water generated by heat exchange of the first plate heat exchanger is stored in the heat storage water tank; in the heating season, heat is exchanged through the second plate heat exchanger to supply heat to the heating coil pipe, so that the building body is heated; in the cooling season, hot water is introduced into the ejector, mixed with low-pressure steam introduced from the evaporator, and then condensed in the condenser; the condensed water is divided into two paths, one path of the condensed water enters the evaporator after being depressurized and cooled through the throttle valve, and the condensed water absorbs heat and is vaporized in the evaporator to realize the refrigeration effect; one path is pumped back to the heating medium public box by the working medium pump to complete circulation.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113487065A (en) * | 2021-06-18 | 2021-10-08 | 浙江中新电力工程建设有限公司 | Zero-carbon power optimization planning system based on clean power and optimization method thereof |
| CN113669943A (en) * | 2021-07-24 | 2021-11-19 | 华北电力大学（保定） | Submarine multi-energy combined supply system with chemical upgrading and heat storage functions |
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