CN214734501U - System-storage-use integrated multi-energy combined supply system based on hydrogen energy - Google Patents
System-storage-use integrated multi-energy combined supply system based on hydrogen energy Download PDFInfo
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- CN214734501U CN214734501U CN202120951773.3U CN202120951773U CN214734501U CN 214734501 U CN214734501 U CN 214734501U CN 202120951773 U CN202120951773 U CN 202120951773U CN 214734501 U CN214734501 U CN 214734501U
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The utility model discloses a system-storage-use integrated multi-energy combined supply system based on hydrogen energy, which comprises a photovoltaic power generation device and a wind power generation device, wherein the photovoltaic power generation device and the wind power generation device are used for converting wind and light renewable energy into electric energy; the photovoltaic power generation equipment utilizes electric power generated by solar energy to be sent into a low-voltage direct current network; the power generated by the wind power generation equipment is transmitted into a low-voltage alternating current network after passing through a frequency converter, the low-voltage alternating current network is connected with a low-voltage direct current network through an inverter, an external power grid is connected with the low-voltage alternating current network through a transformer, and the low-voltage direct current network is connected with an electric hydrogen production device; the electric hydrogen production device inputs hydrogen produced by electric energy into a hydrogen pipeline and is connected with a hydrogen storage device, a natural gas pipe network and a hydrogen combustion engine through the hydrogen pipeline. The utility model discloses hydrogen is prepared and storage hydrogen with the unnecessary electric quantity of usable renewable energy or low price millet electricity to satisfy the multiple energy demand of using of user's cold and hot electricity through the hydrogen energy conversion, can play the effect that the millet was filled out in the electric power peak clipping, and can effectively reduce renewable energy and abandon the electricity.
Description
Technical Field
The utility model relates to a system for preparing, storing and utilizing hydrogen energy, in particular to a system-storage-use integrated multi-energy combined supply system based on hydrogen energy.
Background
In recent years, with the development of energy policy, relevant market and hydrogen energy preparation, storage and utilization technology, the function of hydrogen energy in the future energy field cannot be replaced.
Aiming at the extensive popularization of future renewable energy sources and the reformation and promotion of an electric power market system, the problem of wind and electricity abandonment of new energy sources can exist due to uncertainty and periodicity, the price difference between the peak and the valley of electric power can be gradually increased, when the new energy source electric power cannot be completely absorbed or the price of the valley electric power is low enough, the new energy source electric power absorption and the peak load shifting of a power grid can be assisted by the electric hydrogen production, hydrogen storage and hydrogen energy utilization technology, and meanwhile, various energy using requirements of users can be met.
SUMMERY OF THE UTILITY MODEL
For solving present new forms of energy electric power consumption and the problem of millet is filled out in the peak clipping of electric power, the utility model provides a system-storage-use integration multipotency allies oneself with confession system based on hydrogen energy, it utilizes renewable energy surplus electric quantity or low price millet electricity to prepare and save hydrogen to satisfy the multiple energy demand of cold and hot electricity of user through the hydrogen energy conversion, in order to play the effect of millet is filled out in the peak clipping of electric power, and can effectively reduce renewable energy and abandon the electricity.
Therefore, the utility model discloses a technical scheme is: a hydrogen energy-based production-storage-use integrated multi-energy combined supply system comprises a photovoltaic power generation device and a wind power generation device, wherein the photovoltaic power generation device and the wind power generation device are used for converting wind and light renewable energy into electric energy;
the photovoltaic power generation equipment utilizes electric power generated by solar energy to be sent into a low-voltage direct current network;
the power generated by the wind power generation equipment is transmitted into a low-voltage alternating current network after passing through a frequency converter, the low-voltage alternating current network is connected with a low-voltage direct current network through an inverter, an external power grid is connected with the low-voltage alternating current network through a transformer, and the low-voltage direct current network is connected with an electric hydrogen production device;
the hydrogen produced by the electric hydrogen production device is input into a hydrogen pipeline and is connected with a hydrogen storage device, a natural gas pipe network and a hydrogen combustion engine through the hydrogen pipeline, the hydrogen combustion engine generates electricity by using hydrogen or mixed fuel gas of hydrogen and natural gas, and the generated electricity is supplied to an electric refrigerating unit and a user side.
The user side of the utility model is an industrial park or a single enterprise with various user demands of cooling, heating and power.
Furthermore, a waste heat outlet of the hydrogen combustion engine is connected with a waste heat boiler, a hot water outlet of the waste heat boiler is connected with a hot water pipeline, a steam outlet of the waste heat boiler is connected with a steam pipeline, the hot water pipeline supplies hot water to a user side, and the steam pipeline supplies steam to the user side.
Furthermore, the lithium bromide unit is connected with the steam pipeline through a three-way valve, and cold water produced by the lithium bromide unit through steam and cold water produced by the electric refrigerating unit through electric energy are supplied to the user end through the cold water pipeline.
Further, the hydrogen pipeline is connected with a hydrogen storage device through a hydrogen storage valve.
Further, the hydrogen pipeline is connected with a natural gas pipe network through a communication valve.
The utility model discloses the beneficial effect who has as follows: the hydrogen is prepared and stored by utilizing the excess electric quantity of the renewable energy or the low-price valley electricity, and the various energy requirements of cold, heat and electricity of users are met through hydrogen energy conversion, so that the effects of peak clipping and valley filling of the electric power are achieved, and the electricity abandonment of the renewable energy can be effectively reduced; the system has the advantages of reasonable design, simple structure and convenient realization, and has good application value after the renewable energy power generation is widely applied and the valley electricity price is continuously reduced in the future.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-photovoltaic power generation; 2, wind power generation; 3-a frequency converter; 4-a transformer; 5-an inverter; 6-hydrogen storage device; 7-an electric refrigeration unit; an 8-three-way valve; 9-a waste heat boiler; 10-a lithium bromide unit; 11-hydrogen combustion engine; 12-a communication valve; 13-a hydrogen storage valve; 14-electrical hydrogen production device.
Detailed Description
The invention is further described with reference to the drawings and examples.
The embodiment is an integrated multi-energy combined supply system for hydrogen energy production, storage and use, which comprises a photovoltaic power generation 1, a wind power generation 2, a frequency converter 3, a transformer 4, an inverter 5, a hydrogen storage device 6, an electric refrigerating unit 7, a three-way valve 8, a waste heat boiler 9, a lithium bromide unit 10, a hydrogen combustion engine 11, a communication valve 12, a hydrogen storage valve 13 and an electric hydrogen production device 14.
The photovoltaic power generation 1 utilizes electric power generated by solar energy to be sent into a low-voltage direct current network, the low-voltage direct current network is connected with a hydrogen production device 14, the hydrogen production device utilizes partial photovoltaic power to produce hydrogen and sends the hydrogen into a hydrogen pipeline, the low-voltage direct current network is connected with a low-voltage alternating current network through the inverter 5, and the electric power of the photovoltaic power generation 1 can also be sent into the low-voltage alternating current network through the inverter 5 and then sent into an external power grid through a transformer 4.
The wind power generation 2 utilizes wind energy to generate electric power which is sent to a low-voltage alternating current network through a frequency converter 3, the low-voltage alternating current network sends the electric power to a low-voltage direct current network through an inverter 5, and the low-voltage alternating current network can also send the electric power to an external power grid through a transformer 4.
The hydrogen production device 14 can utilize surplus electric power of the photovoltaic power generation 1 and the wind power generation 2 to produce hydrogen, and when the price of the valley electricity is low enough, the hydrogen production device 14 can also receive the valley electricity of an external power grid to produce hydrogen.
The hydrogen storage device 6 can preferentially store unapproved hydrogen by opening the hydrogen storage valve 13, and when the hydrogen is still redundant, redundant hydrogen can be injected into a natural gas pipeline by opening the communication valve 12, so that new energy electric power is consumed or valley electricity energy is stored; when hydrogen is insufficient, hydrogen is released preferentially by opening the hydrogen storage valve 13, and when hydrogen is still insufficient, the communication valve 12 can be opened to introduce natural gas to meet the energy demand.
The hydrogen combustion engine 11 can not only use pure hydrogen to generate electricity, but also use the mixed fuel gas of hydrogen and natural gas to generate electricity, when the user load is large and the hydrogen is insufficient, the communication valve 12 can be opened to improve the load factor of the hydrogen combustion engine 11, and the user energy is satisfied.
The waste heat boiler 9 utilizes the waste heat of the hydrogen combustion engine 11 to produce steam and hot water, and the steam and the hot water are sent to a steam pipeline and a hot water pipeline, the steam pipeline supplies the steam to the lithium bromide unit 10 and the user end through a three-way valve, and the hot water pipeline supplies the hot water to the user end.
The lithium bromide unit 10 is connected with a steam pipeline through a three-way valve, cold water is prepared by steam and is sent to a cold water pipeline, and when the cold water is insufficient, the electric refrigerating unit 7 utilizes the electric power generated by the hydrogen combustion engine 11 to refrigerate and send the cold water pipeline to meet the cold requirement of a user; when the steam is insufficient, the steam quantity of the lithium bromide unit 10 is reduced to meet the requirement of a user.
The utility model discloses a new forms of energy power generation technique, hydrogen manufacturing technique, hydrogen storage technique and hydrogen energy utilization technique can turn into the millet electricity of the unnecessary electric power of renewable energy or outside electric wire netting into hydrogen and save, utilize, not only can effectively reduce the new forms of energy and abandon the electricity phenomenon, still can assist the electric wire netting peak clipping simultaneously and fill up millet. In addition, the utilization efficiency of hydrogen energy is improved through a multi-energy combined supply technology, and the waste of an energy conversion process is reduced. In the future, new forms of energy electricity generation generally promotes, under the poor trend of drawing big continuously of electric power peak valley, this utility model will have fine practical value.
As mentioned above, the preferred embodiment of the present invention is only, not intended to limit the present invention, and any simple modification, change and equivalent structure change made by the technical entity of the present invention to the above embodiments all still belong to the protection scope of the technical solution of the present invention.
Claims (5)
1. A hydrogen energy-based production-storage-use integrated multi-energy combined supply system is characterized by comprising a photovoltaic power generation device (1) and a wind power generation device (2) which are used for converting wind-light renewable energy into electric energy;
the photovoltaic power generation equipment (1) utilizes electric power generated by solar energy to send into a low-voltage direct current network;
the power generated by the wind power generation equipment (2) is transmitted into a low-voltage alternating current network after passing through a frequency converter (3), the low-voltage alternating current network is connected with a low-voltage direct current network through an inverter (5), an external power grid is connected with the low-voltage alternating current network through a transformer (4), and the low-voltage direct current network is connected with an electric hydrogen production device (14);
the hydrogen produced by the electric hydrogen production device (14) is input into a hydrogen pipeline, the hydrogen pipeline is connected with the hydrogen storage device (6), the natural gas pipe network and the hydrogen combustion engine (11), the hydrogen combustion engine (11) generates electricity by using hydrogen or mixed fuel gas of hydrogen and natural gas, and the generated electricity is supplied to the electric refrigerating unit (7) and a user side.
2. The system of claim 1, wherein the waste heat outlet of the hydrogen gas turbine (11) is connected to a waste heat boiler (9), the hot water outlet of the waste heat boiler (9) is connected to a hot water pipeline, the steam outlet of the waste heat boiler (9) is connected to a steam pipeline, the hot water pipeline supplies hot water to the user terminal, and the steam pipeline supplies steam to the user terminal.
3. The system of claim 2, wherein the lithium bromide unit (10) is connected to the steam pipeline through a three-way valve (8), and cold water produced by the lithium bromide unit (10) through steam and cold water produced by the electric refrigeration unit (7) through electric energy are supplied to the user end through the cold water pipeline.
4. The integrated combined multi-energy system for production, storage and utilization based on hydrogen energy as claimed in any one of claims 1 to 3, wherein the hydrogen pipeline is connected to the hydrogen storage device (6) through a hydrogen storage valve (13).
5. The integrated combined multi-energy supply system for hydrogen energy generation, storage and utilization according to any one of claims 1 to 3, wherein the hydrogen pipeline is connected with a natural gas pipe network through a communication valve (12).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123265A (en) * | 2021-11-25 | 2022-03-01 | 东北电力大学 | Method for producing hydrogen by electrolyzing water through wind-driven electricity in sea |
| CN114123264A (en) * | 2021-11-25 | 2022-03-01 | 东北电力大学 | Method for electrolytic hydrogen production by desert photovoltaic |
| CN114738662A (en) * | 2022-04-02 | 2022-07-12 | 中山先进低温技术研究院 | Renewable energy comprehensive utilization system and method based on liquid hydrogen energy storage |
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2021
- 2021-05-06 CN CN202120951773.3U patent/CN214734501U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123265A (en) * | 2021-11-25 | 2022-03-01 | 东北电力大学 | Method for producing hydrogen by electrolyzing water through wind-driven electricity in sea |
| CN114123264A (en) * | 2021-11-25 | 2022-03-01 | 东北电力大学 | Method for electrolytic hydrogen production by desert photovoltaic |
| CN114738662A (en) * | 2022-04-02 | 2022-07-12 | 中山先进低温技术研究院 | Renewable energy comprehensive utilization system and method based on liquid hydrogen energy storage |
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