CN217215980U - Electric power peak regulation system based on fuel distribution pipe network - Google Patents
Electric power peak regulation system based on fuel distribution pipe network Download PDFInfo
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- CN217215980U CN217215980U CN202123081719.7U CN202123081719U CN217215980U CN 217215980 U CN217215980 U CN 217215980U CN 202123081719 U CN202123081719 U CN 202123081719U CN 217215980 U CN217215980 U CN 217215980U
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model relates to an electric power peak shaving system based on fire pipe network, including firing the pipe network of joining in marriage, the power supply electric wire netting, and domestic gas main valve, domestic power supply bus, the output that fires the pipe network of joining in marriage is connected to domestic gas main valve, the power supply electric wire netting is connected to domestic power supply bus, electric power peak shaving system still includes electrolysis hydrogen plant, methanation device and gas power generation facility, fire the output that the pipe network connects the methanation device respectively and gas power generation facility's input, electrolysis hydrogen plant and gas power generation facility all are connected with the power supply electric wire netting, electrolysis hydrogen plant and methanation device are connected. Compared with the prior art, the utility model discloses based on fire the transport that pipe network realized the energy medium, with the help of gas power generation facility and electrolysis hydrogen plant, methanation device realization energy medium's conversion, always and can not need newly-built pipeline, also reduced the safety risk and the high cost of the direct transportation of hydrogen energy.
Description
Technical Field
The utility model relates to an electric power peak shaving system especially relates to an electric power peak shaving system based on fire distribution network.
Background
In order to effectively cope with the continuous increase of greenhouse gas emission and global energy demand, the environment-friendly new electric power technology is necessary. Renewable sources such as solar energy and wind have great potential, but the utilization difficulty is high due to the volatility and intermittence of the renewable sources. Renewable energy sources so far have great difficulty in utilization due to its volatility and intermittency. The volatility and intermittent power problems brought by renewable energy sources so far only occur in local power grids with high renewable energy ratio, and in the future, the high-proportion renewable energy penetration is expected to be realized more greatly. For example, germany aims to achieve 80% of electricity from renewable sources to 2050, but this means that more technology is required to keep the electricity smooth, whereas at higher renewable energy generation rates, batteries, compressed air, flywheels, etc. are suitable for short term energy storage by means of electrical energy storage technology, whereas hydrogen as an energy carrier enables long term storage of electrical energy, leading to the concept of PTX.
PTX is to be understood as a general definition describing all the technical trajectories from the production of hydrogen by electrolysis of water to the final use in the whole energy field. The definition and scope of PTX coverage is evolving due to its relative novelty in conceptualization and the variety of technical approaches involved.
PTX mainly refers to Power To Gas (PTG), an energy conversion technology originated in european countries at the beginning of this century. The technology of converting electricity into gas in a broad sense refers to hydrogen production by electrolysis, wherein electricity is converted into hydrogen by water electrolysis, and the hydrogen is stored in a pressure tank and can be converted into electric energy again by a fuel cell or a hydrogen internal machine when in use.
Then, since the transportation and storage costs of hydrogen gas are high, it is costly to directly use hydrogen as energy for the final user terminal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric power peak regulation system based on fire distribution network, realize the transport of energy medium based on firing distribution network, with the help of gas power generation facility and electrolysis hydrogen plant, methanation assembly and realize the conversion of energy medium, always and can not need newly-built pipeline, also reduced the safety risk and the high cost of direct transportation of hydrogen energy.
The purpose of the utility model can be realized by the following technical proposal:
an electric power peak regulation system based on a fuel distribution pipe network comprises the fuel distribution pipe network, a power supply grid, a household fuel gas main valve and a household power supply bus, wherein the output end of the fuel distribution pipe network is connected to the household fuel gas main valve, the power supply grid is connected to the household power supply bus, the electric power peak regulation system further comprises an electrolytic hydrogen production device, a methanation device and a fuel gas power generation device,
the fuel distribution network is respectively connected with the output end of the methanation device and the input end of the fuel gas power generation device, the electrolysis hydrogen production device and the fuel gas power generation device are both connected with a power supply grid, and the electrolysis hydrogen production device is connected with the methanation device.
The electric power peak regulation system also comprises a fuel cell power generation device, and the fuel cell power generation device is respectively connected with the electrolytic hydrogen production device and the power supply grid.
The gas power generation device is a distributed gas generator set.
The distributed gas generator sets are distributed in each community.
The cell is a power consumer cell.
The system also comprises a centralized heat exchanger and a hot water tank, wherein a heat release loop of the centralized heat exchanger is connected to a circulating water pipeline of the distributed gas generator set, and a heat absorption loop of the centralized heat exchanger is connected to the hot water tank.
The hot water tank is connected to a domestic hot water main valve.
The output end of the household hot water main valve is connected to a household water heater.
The centralized heat exchanger is a plate heat exchanger.
The electric power peak regulation system also comprises a hydrogen storage device, and the hydrogen storage device is connected with the electrolytic hydrogen production device.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the fuel pipe network is used for conveying the energy medium, the fuel gas power generation device, the electrolytic hydrogen production device and the methanation device are used for converting the energy medium, a newly-built pipeline is not needed, and the safety risk and high cost of direct transportation of hydrogen energy are reduced.
2. The fuel cell power plant can reduce the loss of energy conversion.
3. The gas power generation device is a distributed gas power generation unit, so that the response speed can be increased, and local compensation can be realized.
4. Through the concentrated heat exchanger, the surplus heat energy generated by the distributed gas generator set can be effectively utilized.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic diagram of a user-side energy conversion structure;
wherein: 1. the system comprises a power supply grid, 2 a fuel distribution pipe network, 3 an electrolytic hydrogen production device, 4 a methanation device, 5 a fuel gas power generation device, 6 a household fuel gas main valve, 7 a power supply bus, 8 a centralized heat exchanger, 9 and a hot water tank.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment of the present invention is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the existing urban energy supply network, a mature power supply grid 1 for supplying electric energy and a fuel distribution grid 2 for supplying fuel gas are provided, the application aims to realize PTX by utilizing the mature fuel distribution grid 2, and specifically, an electric power peak regulation system based on the fuel distribution grid 2 is provided, as shown in figures 1 and 2, the electric power peak regulation system comprises the fuel distribution grid 2, the power supply grid 1, a household fuel gas main valve 6 and a household power supply bus 7, wherein the output end of the fuel distribution grid 2 is connected to the household fuel gas main valve 6, the power supply grid 1 is connected to the household power supply bus 7, the electric power peak regulation system further comprises an electrolytic hydrogen production device 3, a methanation device 4 and a fuel gas power generation device 5,
the fuel distribution pipe network 2 is respectively connected with the output end of the methanation device and the input end of the fuel gas power generation device 5, the electrolysis hydrogen production device 3 and the fuel gas power generation device 5 are both connected with the power supply grid 1, and the electrolysis hydrogen production device 3 is connected with the methanation device 4.
The fuel distribution network 2 is used for conveying the energy medium, the fuel gas power generation device 5, the electrolysis hydrogen production device 3 and the methanation device 4 are used for converting the energy medium, no new pipeline is needed, and the safety risk and high cost of direct transportation of hydrogen energy are reduced.
In some embodiments, the power peaking system further includes a fuel cell power generation device, which is connected to the electrolytic hydrogen production device 3 and the power supply grid 1, respectively. Since the one-step energy conversion is reduced, since the energy consumption is reduced, in this case a certain amount of hydrogen can be mixed into the natural gas for transport, the hydrogen being injected into the natural gas network, which results in an unreacted gas mixture. Without conversion, the energy losses that it generates are low and only a limited additional investment is required. The volume is still limited by regulatory hurdles and the hydrogen concentration, which can be mixed into the gas network without adjustment. The latter depends on pipeline integrity and safety issues, hydraulic constraints and the sensitivity of the terminal equipment to hydrogen/methane mixtures. Typically, the entire natural gas pipeline network should be able to withstand 5% volume mixing, up to 20% volume mixing in distribution pipelines or regional transport in equipment downstream of the key concerned. Therefore, hydrogen can be conveyed through a gas pipe network, and the hydrogen in the hydrogen can be extracted by matching with some separation equipment at a terminal hydrogen adding station.
In other embodiments, the gas power generation device 5 is a distributed gas power generation unit, and in particular, the distributed gas power generation unit is distributed in each cell. The community is a power consumer community and is not completely consistent with a real community, and each power consumer is divided by a power supply unit, so that the response speed can be increased, and local compensation can be realized.
In this embodiment, the system further includes a centralized heat exchanger 8 and a hot water tank 9, a heat release loop of the centralized heat exchanger 8 is connected to a circulating water pipeline of the distributed gas generator set, and a heat absorption loop is connected to the hot water tank 9, so that excess heat energy generated by the distributed gas generator set can be effectively utilized. Wherein, the hot water tank 9 is connected to the domestic hot water main valve, and the output of domestic hot water main valve is connected to domestic water heater, then follows existing hot water pipeline and carries out the transport, can't modify the pipeline. In one embodiment, the heat exchange efficiency can be improved by the 8-position disk heat exchanger of the centralized heat exchanger.
In some embodiments, the peak shaving system further comprises a hydrogen storage device, which is connected to the electrolytic hydrogen production device 3 and may additionally store hydrogen.
Claims (10)
1. An electric power peak regulation system based on a fuel distribution pipe network comprises the fuel distribution pipe network, a power supply grid, a household fuel gas main valve and a household power supply bus, wherein the output end of the fuel distribution pipe network is connected to the household fuel gas main valve, the power supply grid is connected to the household power supply bus, and the electric power peak regulation system is characterized by further comprising an electrolytic hydrogen production device, a methanation device and a fuel gas power generation device,
the fuel distribution network is respectively connected with the output end of the methanation device and the input end of the fuel gas power generation device, the electrolysis hydrogen production device and the fuel gas power generation device are both connected with a power supply grid, and the electrolysis hydrogen production device is connected with the methanation device.
2. The fuel distribution network-based power peak shaving system according to claim 1, further comprising a fuel cell power generation device, wherein the fuel cell power generation device is respectively connected with the electrolytic hydrogen production device and the power supply grid.
3. The fuel distribution network-based power peak shaving system according to claim 1, wherein the gas power generation device is a distributed gas generator set.
4. The fuel distribution network-based power peak shaving system according to claim 3, wherein the distributed gas generator set is distributed in each cell.
5. The fuel distribution network-based power peak shaving system according to claim 4, wherein the cell is a power consumer cell.
6. The fuel distribution network-based power peak shaving system according to claim 3, further comprising a centralized heat exchanger and a hot water tank, wherein a heat release loop of the centralized heat exchanger is connected to a circulating water pipeline of the distributed gas generator set, and a heat absorption loop of the centralized heat exchanger is connected to the hot water tank.
7. The fuel distribution network-based power peaking system of claim 6, wherein the hot water tank is connected to a domestic hot water main valve.
8. The network based electric power peak shaving system of claim 7, wherein the output of the main domestic hot water valve is connected to a domestic water heater.
9. The fuel distribution network-based power peaking system of claim 6, wherein the central heat exchanger is a disk heat exchanger.
10. The fuel distribution network-based power peak shaving system according to claim 1, further comprising a hydrogen storage device, wherein the hydrogen storage device is connected with the electrolytic hydrogen production device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081719.7U CN217215980U (en) | 2021-12-09 | 2021-12-09 | Electric power peak regulation system based on fuel distribution pipe network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081719.7U CN217215980U (en) | 2021-12-09 | 2021-12-09 | Electric power peak regulation system based on fuel distribution pipe network |
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| CN217215980U true CN217215980U (en) | 2022-08-16 |
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| CN202123081719.7U Active CN217215980U (en) | 2021-12-09 | 2021-12-09 | Electric power peak regulation system based on fuel distribution pipe network |
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2021
- 2021-12-09 CN CN202123081719.7U patent/CN217215980U/en active Active
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