JP2004259492A - Feed system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feed system helping advancement of a less-populated area, hardly causing environmental pollution, and dispensing with an electric feeder line from a power generation plant installed in the less-populated area to an urban area of a power consuming location where a lot of electricity feed stations are established. <P>SOLUTION: An electric generator 2 for generating power with natural energy is installed in a first power generation plant 1 established in the less-populated area; electricity generated by the electric generator 2 is transmitted to an electrolysis device 3; hydrogen obtained by applying electrolysis to water by the electrolysis device 3 is carried to a second power generation plant 10 established in the vicinity of a city; power is generated by a fuel cell 14 using hydrogen as a fuel in the generation plant 10; and the generated power is distributed to a charging device 16 installed in an electricity feed station as a driving source for an electric automobile. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a system that supplies power or the like generated by a power plant to a supply station that supplies a vehicle as a driving source to the vehicle.
[0002]
[Prior art]
Conventionally, petroleum fuels such as gasoline and light oil have been used as fuel for automobiles.However, in the future, the unstable supply of oil, the effects on health caused by emission of harmful gases such as nitrogen oxides, Due to concerns such as the impact of emissions on global warming, electric vehicles using electricity and hydrogen vehicles using hydrogen have attracted attention as new driving sources that do not cause pollution.
[0003]
On the other hand, the electricity required for electric vehicles is generated by power plants, and the main energy used for power generation is hydro, thermal or nuclear, but hydro has already been developed and thermal or nuclear power plants are required. Have been. However, the construction opposition movement has made it difficult to build a new power plant due to the issue of pollution from thermal power and the problem of radioactive contamination from nuclear power. No hydrogen vehicle has been specifically established as an organization that produces hydrogen for vehicles.
[0004]
In addition, an electric supply station that supplies electricity to a vehicle and a power plant are connected by a power transmission line.
[0005]
The above prior art is conventionally performed by those skilled in the art, and is not related to the invention disclosed in the literature.
[0006]
[Problems to be solved by the invention]
In this way, when a power plant is constructed, it will be located far away from the urban area where many power supply stations are assumed to be installed, the construction cost of transmission lines will increase, and the electricity supply by long-distance transmission will be increased. Transmission loss is increasing. Further, the place where the electric supply station can be installed is limited to the place where the transmission line can be constructed, which may hinder the spread of electric vehicles. For hydrogen vehicles, it is not easy to always secure the hydrogen to be charged into the vehicle. For this purpose, it was necessary to separately construct a hydrogen production plant.
[0007]
The object of the present invention is to solve the disadvantages of the conventional example, to promote the depopulated area, to reduce the occurrence of pollution, and to supply electricity to the electricity supply station. To provide a supply system that eliminates the need for transmission lines to urban areas, which are often installed as power consumers, and that can secure hydrogen supply to automobiles without separately constructing a hydrogen production plant at the hydrogen supply station. It is in.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention firstly provides a first power plant provided in a depopulated area with a generator for generating electricity with natural energy, and sends the electricity generated by the generator to the electrolyzer. The hydrogen obtained by electrolyzing water with the electrolyzer is transported to a second power station provided near the city, where the power is generated by a fuel cell using hydrogen as fuel, and the generated power is As a driving source for an electric vehicle and to distribute power to an electric supply station.
[0009]
Second, the generator is a solar cell, a wave generator, a wind generator or a geothermal generator. Third, the hydrogen is stored in a hydrogen storage alloy from the first power plant. It is intended to be transported to a second power plant.
[0010]
According to the first aspect of the present invention, since the first power plant is provided in the depopulated area, it is useful for promotion of the depopulated area, and since the first power station generates power using natural energy, the occurrence of pollution is small. . The generated electric energy is converted into hydrogen and transported to a second power station near the city where electricity supplied to electric vehicles is generated. There is no need, and there is no transmission loss due to long-distance transmission. In addition, since the second power station near the city generates power using a fuel cell that uses hydrogen as fuel, there is little pollution, and even if a power station is built near the city, it is unlikely to be a target of opposition.
[0011]
Furthermore, if hydrogen obtained at the first power plant is stored as it is in a cylinder and transported to a hydrogen supply station, it can be used as a driving source for a hydrogen vehicle.
[0012]
According to the present invention as set forth in claim 2, in addition to the above operation, since the power generator is a solar cell, a wave generator, a wind power generator or a geothermal power generator, it may cause pollution or destroy the natural environment. Less is.
[0013]
According to the third aspect of the present invention, in addition to the above-described functions, hydrogen is carried in a state of being stored in the hydrogen storage alloy, so that the handling of hydrogen having a high risk of explosion is simplified.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a conceptual diagram showing a first embodiment of a supply system of the present invention, in which 1 shows a first power plant, which is provided in a depopulated area such as an uninhabited island, a remote island, or a mountainous area. Is provided with a generator 2 using natural energy.
[0015]
As the generator 2 using natural energy, various generators are selected according to the local conditions. For example, a solar cell is used in a place where the sunshine is long, a wind generator is used in a place where the wind is strong, and a wave is high in a remote island. A wave generator can be used in a place, and a geothermal generator can be used in a volcanic area.
[0016]
The electricity generated by the generator 2 is sent to an electrolyzer 3, where the electricity decomposes water into hydrogen and oxygen. The decomposed hydrogen is pressurized by the compressor 4, sent to the storage chamber 5, and stored in the hydrogen storage alloy 6 in the storage chamber 5.
[0017]
As the hydrogen storage alloy 6, a lanthanum / nickel alloy, an iron / titanium alloy, or the like can be used. The lanthanum-nickel alloy is particularly effective because when it is brought into contact with 3 atmospheres of hydrogen at 20 ° C., it absorbs about 3 moles of hydrogen per mole, and when heated to 80 ° C., it emits about 17 atmospheres of hydrogen.
[0018]
The storage chamber 5 is cooled by the cooler 7 so that the storage of hydrogen is promoted. When the hydrogen storage alloy 6 is a lanthanum-nickel alloy, the cooling temperature of the storage chamber 5 is 20 ° C. or lower.
[0019]
The hydrogen storage alloy 6 storing the hydrogen in this way is carried to the second power plant 10 provided near the city and is put into the discharge chamber 11. The release chamber 11 is heated by the heater 12 so that the release of hydrogen from the hydrogen storage alloy 6 is promoted.
The heating temperature of the discharge chamber 11 is 80 ° C. or more when the hydrogen storage alloy 6 is a lanthanum-nickel alloy.
[0020]
The hydrogen released into the discharge chamber 11 is sent to the fuel cell 14 by the pump 13.
Hydrogen reacts with oxygen to form water, and the generated power is converted to AC by an inverter 15 and distributed to an electric supply station that supplies electricity to the vehicle, and supplied to a charging device 16 installed here. Is done.
[0021]
As the fuel cell, a phosphoric acid fuel cell that generates power using hydrogen as fuel can be used.
This fuel cell has a power generation efficiency of 60% or more, is small in size, generates little noise, and does not pollute the air. Therefore, even if it is installed in a suburban power plant, it will not be a target of opposition. .
[0022]
Oxygen produced by the electrolyzer 3 of the first power plant 1 is pressurized by the compressor 8 and stored in the oxygen cylinder 9 and transported to the city for effective use. The hydrogen pressurized by the compressor 4 is stored in a cylinder 17 and transported to a filling station 20, which is a hydrogen supply station, where it is pressurized by a compressor 18 and then transferred to a vehicle 19 at the filling station 20. It can also be supplied.
[0023]
As a result, hydrogen obtained in the process of producing electricity can be used as it is as a drive source for a hydrogen vehicle.
[0024]
【The invention's effect】
As described above, the power supply system of the present invention is provided with a generator that generates power with natural energy in a first power plant provided in a depopulated area, and sends electricity generated by the generator to an electrolyzer, Hydrogen obtained by electrolyzing water with the electrolyzer is transported to a second power station provided near the city, where the power is generated by a fuel cell using hydrogen as fuel, and the generated power is generated. Electricity is distributed to an electric supply station that supplies electricity to electric vehicles.
[0025]
Since the first power plant is provided in the depopulated area in this way, it is useful for the promotion of the depopulated area, and the first power station generates electricity with natural energy, so that there is less pollution. In addition, the generated electric energy is converted into hydrogen and transported to a second power station near the city, where electricity to be supplied to electric vehicles is generated. Electric wires are not required, and power transmission loss due to long-distance power transmission is eliminated. In the second power station near the city, power is generated by a fuel cell that uses hydrogen as fuel, so that there is little pollution.
[0026]
Further, even in a place where transmission lines cannot be installed, an electric supply station can be constructed, which can contribute to the spread of electric vehicles. In addition, hydrogen obtained in the process of producing electricity can be used directly as a driving source for hydrogen vehicles, so hydrogen can be easily secured without specially constructing a manufacturing facility to supply hydrogen for hydrogen vehicles. It is possible to use hydrogen effectively.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a first embodiment of a supply system of the present invention.
FIG. 2 is a conceptual diagram showing a supply system according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... 1st power station 2 ... Generator 3 ... Electrolyzer 4 ... Compressor 5 ... Storage chamber 6 ... Hydrogen storage alloy 7 ... Cooler 8 ... Compressor 9 ... Oxygen cylinder 10 ... Second power station 11 ... Release chamber DESCRIPTION OF SYMBOLS 12 ... Heater 13 ... Pump 14 ... Fuel cell 15 ... Inverter 16 ... Charging device 17 ... Cylinder 18 ... Compressor 19 ... Vehicle 20 ... Filling station

Claims (3)

A first power plant provided in a depopulated area is provided with a generator for generating electricity with natural energy, electricity generated by the generator is sent to an electrolyzer, and water is electrolyzed by the electrolyzer. Transports the generated hydrogen to a second power station located near the city, generates power using a fuel cell that uses hydrogen as fuel, and distributes the generated power to an electric supply station as a driving source for an electric vehicle. Supply system characterized by the following. The supply system according to claim 1, wherein the generator is a solar cell, a wave generator, a wind generator, or a geothermal generator. 3. The supply system according to claim 1, wherein the hydrogen is transported from the first power plant to the second power plant while being stored in the hydrogen storage alloy. 4.

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