JPH04115470A - Power storage generator - Google Patents

Abstract

PURPOSE:To efficiently perform power preservation by electrolyzing steam with the use of surplus power to produce and store hydrogen and at the time of power shortage supplying the hydrogen to a fuel cell for power generation. CONSTITUTION:The surplus power of a power source line 2 from a power regulation unit 3 is converted into a direct current and applied to a hydrogen electrode 8 and an oxygen electrode 9. Nextly, water is fed out from a water storage tank 15 by a pump 16 and made into steam having a temperature of not less than approximately 800 deg.C by heat exchangers 17, 18, 20, and the steam is fed to a hydrogen-electrode-side manifold 10 and electrolyzed there and then stored in a hydrogen storage tank 24. And then at the time of power shortage the hydrogen is supplied to the hydrogen-electrode-side manifold 10 from the hydrogen storage tank 24 and oxygen is supplied to an oxygen-electrode-side manifold 11 and power generation is performed in an oxygen hydrogen electro- chemical reactor 14, whereby since the steam is electrolyzed by the surplus power and the hydrogen is produced and stored and at the time of power shortage the power generation is performed by electro-chemical reaction of hydrogen, power storage may be efficiently performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power storage power generation device for storing surplus power and using it in times of power shortage.

[Prior Art] Looking at today's energy situation, it is expected that nuclear power and natural energy (particularly solar energy) will become the next energy source in place of fossil fuels, which are scarce in resources and have a negative impact on the environment.

Nuclear power generation is technically and economically desirable to operate at a constant output, and as the proportion of nuclear power generation increases, the need to store electricity when there is a surplus and use it when there is a shortage increases.

2. Description of the Related Art Conventionally, there is a power storage power generation system using a redox flow battery as a system for storing power and generating power. This system uses a Fe3+/Fe2+ hydrochloric acid solution for the positive electrode liquid and a Cr''/Cr'+ hydrochloric acid solution for the negative electrode liquid. During charging, the positive f!
r''+e-+Cr'+, and during discharging, the reverse reaction is performed to perform charging and power generation.

Problems to be Solved by the Invention] However, the power storage power generation system using redox flow batteries uses a Fe3+/Fe2+ hydrochloric acid solution or a Cr''/Cr'+ hydrochloric acid solution for storage, and is susceptible to corrosion due to strong acids, chromium, etc. There are problems with security, environmental protection, etc.

Therefore, in recent years, it has been proposed to use surplus electricity to electrolyze water to extract hydrogen and store it, and to supply the stored hydrogen to a fuel cell to generate electricity when there is a power shortage. Unlike the power storage power generation system using redox flow batteries mentioned above, this hydrogen storage power generation system uses water, hydrogen, and oxygen and is easy to store and handle, but the power generation efficiency is considered to be extremely low. .

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a power storage power generation device that can store surplus power and use it when necessary, and has high power generation efficiency.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a power storage power generation device for storing power during surplus power and using it in times of power shortage. an oxygen-hydrogen electrification reactor in which a hydrogen electrode is sandwiched between electrolytes and manifolds are formed on both sides of the electrode, a steam supply line that supplies steam to the manifold on the hydrogen electrode side, and a storage for the produced hydrogen. a hydrogen storage device that supplies hydrogen to the hydrogen electrode side manifold of the oxygen-hydrogen electrification reaction device during power generation, an air supply line that supplies air to the oxygen electrode side manifold of the oxygen-hydrogen electrification reaction device, and direct current that supplies excess power to both electrodes during electrolysis. It is equipped with a power adjustment device that converts and supplies direct current to alternating current during power generation. In addition, an electrolytic hydrogen production device that uses water vapor as a raw material and electrolyzes it with surplus power to produce hydrogen and oxygen, in a power storage power generation device that stores power when there is surplus power and uses it in times of power shortage; A boiler plant that supplies steam to the electrolytic hydrogen production device and uses the produced oxygen as combustion air, a hydrogen storage device that stores the produced hydrogen, and a reactor that causes the stored hydrogen to react with oxygen in the air. The system is equipped with a fuel cell that generates electricity using a fuel cell, and a power adjustment device that converts surplus power into direct current to feed the electrolytic hydrogen production device and converts the direct current from the fuel cell into alternating current.

Dual Actions The above configuration uses surplus electricity to electrolyze water vapor to produce hydrogen, and stores the hydrogen to efficiently electrolyze and store the produced hydrogen for a long period of time. The stored electricity can be used by supplying the hydrogen to a fuel cell to generate electricity.

Embodiment E] Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, which basically consists of an electrolytic hydrogen production device/fuel cell plant 1 consisting of an electrolyzer and a fuel cell, an electrolytic hydrogen production device/fuel cell plant 1, and a power source. It consists of a power adjustment device 3 connected to a line 2.

First, the oxygen-hydrogen electrochemical reaction device 4 that shares the electrolyzer and fuel cell of the electrolytic hydrogen production device and fuel cell plant 1 is as follows.
As shown in FIG. 2, a three-layer reaction membrane 6 is provided in the center of a reaction tank 5. This reaction three-layer membrane 6 has an electrolyte 7
is sandwiched between hydrogen [i8 and an oxygen electrode 9, the electrolyte 7 is made of i-thria-stabilized zirconia, the hydrogen electrode 8 is made of Ni porous plate, and the oxygen electrode 9 is made of LaMnOs<
lanthanum mancanite) is a porous plate, and there are various other combinations.

In the reaction tank 5, a hydrogen electrode side manifold 10 is formed on the hydrogen electrode 8 side of the reaction three-layer membrane 6, and an oxygen electrode side manifold 11 is formed on the oxygen electrode side.

During electrolysis in this oxygen-hydrogen electrochemical reaction device 4, steam at a temperature of 800°C or higher is supplied to the hydrogen electrode side manifold 10, a DC voltage is applied to the hydrogen electrode 8 and the oxygen electrode 9, and H2O is converted into a reaction represented by the following formula. Decompose it with.

At this time, hydrogen scum is generated on the hydrogen [i (positive'#l) side,
Also, oxygen gas is generated on the oxygen electrode (cathode) side.
H2+ 1/20□ (1) At this time, in the reaction tank 5, the entire amount of H2O supplied is not consumed in the reaction of equation (1), so a mixed gas of H2O and H2 comes out at the outlet side of the hydrogen electrode. I have to go.

On the other hand, when used as a fuel cell, H2 is supplied to the hydrogen electrode side manifold 10, and the oxygen electrode side manifold 1
By supplying 02 to 1, electricity is generated through a reaction opposite to the electrolysis of water.

In the reaction tank 5 serving as a fuel cell, the reaction of equation (2), which is the reverse reaction of equation (1) above, takes place, and a voltage of 0.6 to 0.9 μ is applied between the hydrogen electrode 8 and the oxygen electrode 9. DC power is generated.

H2+1/202-H2O<2> Now, in FIG. 1, a steam supply line 12 and a hydrogen supply line 13 are connected to the hydrogen l7fl side manifold 10 of the oxygen-hydrogen electrochemical reaction device 4, and the oxygen electrode side manifold 11 is connected to the hydrogen supply line 12 and the hydrogen supply line 13. An air supply line 14 is connected.

In the steam supply line 12, water from a water storage tank 15 is pumped by a pump 16, passed through a plurality of heat exchangers 17 and 18, and then passed through a heat exchanger 20 from a steam side valve 19 to become steam at a temperature of 800°C or higher and hydrogen. It is supplied to the pole side manifold 10. Also, generated H2 and unreacted H
20 passes through the heat exchanger 20 and is separated into H2O and H2 by the separator 21, HxO is returned to the water storage tank 15, and H2
After being pressurized by the compressor 22, the H2
It is stored in the storage tank 24. Further, the hydrogen supply line 13 is
H2 from the 2 storage tank 24 is sent to the hydrogen side valve 2 by the pump 25.
6, further passes through an intermediate valve 27, a heat exchanger 20, and is introduced into the hydrogen electrode side manifold 10.

Further, oxygen is introduced into the compressor 29 through the air filter 28, is pressurized, and is introduced into the oxygen electrode side manifold 11 through the heat exchanger 30. Furthermore, air containing unreacted oxygen after being introduced into the manifold 11 is discharged to the outside of the system through a heat exchanger 30.

In the embodiment shown in FIG. 1, when there is surplus power, hydrogen storage operation is performed by electrolysis of water. First, the power adjustment device 3 converts the surplus power of the power supply line 2 into direct current and applies it to the hydrogen electrode 8 and the oxygen electrode 9. During this hydrogen storage operation, the valves 26 and 27 of the hydrogen supply line 13 are kept closed, and the water vapor side valve 19 and the storage valve 23 are kept open. In this state, water vapor is supplied from the water vapor supply line 12 to the hydrogen electrode side manifold 10. That is, water from the water storage tank 15 is pumped by the pump 16, and the water is pumped through the plurality of heat exchangers 17, 18.
The water vapor passes through the heat exchanger 20 from the water vapor side valve 19 and becomes water vapor at a temperature of 800° C. or higher, and then flows into the hydrogen electrode side manifold 10.
supplied to At this time, a heat exchanger 17.1 that heats the water
8 uses steam generated in nuclear power generation such as BWR or steam generated in thermal power generation as a heat source. In addition, air is supplied as a carrier gas to the oxygen electrode manifold 11 from an air supply line 14 to balance the pressure of the three-layer reaction membrane 6 so that the pressure is the same as that of the hydrogen electrode manifold 10.

H2 decomposed in the hydrogen electrode side manifold 10 and unreacted H20 pass through a heat exchanger 20 and are separated into H, O and H2 in a separator 21, and H2O is returned to the water storage tank 15 and H2
After being pressurized by the compressor 22, the H2
It is stored in the storage tank 24. Further, oxygen flows through the three-layer membrane 6 to the oxygen side manifold 11, passes through the heat exchanger 30, and is discharged to the outside of the system.

In addition, when there is a power shortage, hydrogen stored in the H2 storage tank 24 is supplied from the hydrogen supply line 13 to the hydrogen electrode side manifold 10, and oxygen (air) is supplied to the air supply line 14 and the oxygen electrode side manifold 11 to provide oxygen. The hydrogen electrochemical reaction device 4 generates electricity. During this power generation operation, the steam side valve 19 and the storage valve 23 are closed, and the valves 26 and 27 of the hydrogen supply line 13 are left open. H2 storage tank 24
H2 is introduced into the hydrogen electrode side manifold 10 through the hydrogen side valve 23 via the pump 25, and further through the heat exchanger 20 via the intermediate valve 27. Further, atmospheric air is introduced into the compressor 29 through the air filter 28, the pressure is increased, and the oxygen is introduced into the oxygen electrode side manifold 11 through the heat exchanger 30.

In the oxygen-hydrogen electrochemical reaction device 4, hydrogen and oxygen are reacted in the reaction of the above-mentioned formula (2) using the reaction three-layer film 6. The DC power generated by this reaction is converted into AC power by the power adjustment device 3, and is used as power to supplement the power shortage from the power supply line 2.

Also, from the outlet of the hydrogen electrode side manifold 10, H2O, H
2 mixed gas is discharged, and the oxygen electrode side manifold 1
02:a degree of thin air is discharged from each of the outlet ports 1 and 1 separately. The mixed gas of H2O and H2 from the outlet of the hydrogen electrode side manifold 10 undergoes heat exchange with the inlet scum in the heat exchanger 10 and recovers the heat, and then is converted into H2O in the separator 21.
and H2, H2O is returned to the water storage tank 15, and H2O is
2 is pressurized by the compressor 22, and then circulated to the hydrogen electrode side manifold 10 via the intermediate valve 27 together with H2 from the H2 storage tank 24.

Furthermore, the air with a reduced O2 concentration at the outlet of the oxygen electrode side manifold 11 passes through the heat exchanger 30, where it exchanges heat with the inlet side air, and is then discharged to the outside of the system.

For example, this hydrogen production operation and power generation operation are performed using surplus power from 6:00 pm to 6:00 am, and when there is a power shortage from 6:00 am to 6:00 pm, power generation operation is performed to compensate for the power shortage. .

FIG. 3 shows the relationship between applied voltage and generated voltage with respect to electrolysis and power generation temperature, where line A is a theoretical voltage line, line B is an applied voltage line during electrolysis, and line C is a generated voltage line during power generation. In this figure, it can be seen that as the temperature increases, the electrolysis and applied voltage decrease, and the difference in the generated voltage with respect to the applied voltage also decreases. Therefore, efficient operation can be achieved by performing electrolysis and power generation at high temperatures.

FIG. 4 shows another embodiment of the invention.

The embodiment shown in FIG. 4 is basically the same as the embodiment shown in FIG. 1, and specifically shows the heat source of the heat exchanger 18 in the steam supply line 12.

First, during electrolysis, the water vapor sent into the hydrogen electrode side manifold 10 of the oxygen-hydrogen electrochemical reaction device 4 needs to be at a high temperature of 800° C. or higher. Such water vapor is first supplied from a water storage tank 15 through a pump 16, heated to 100-200°C in a first heat exchanger 17, and then heated in a second heat exchanger 18 to a high-temperature gas-cooled nuclear reactor 40. It is heated to 700 to 800° C. by the heat generated, and is sent to the hydrogen electrode side manifold 10 after being heat exchanged with the outlet gas at the inlet side heat exchanger 20 via the steam valve 19.

The heat generated by the high-temperature gas-cooled nuclear reactor 40 operates the steam turbine 41 during normal power shortages. That is, a primary helium circulation line 42 is connected to the high-temperature gas-cooled nuclear reactor 40, and a helium heat exchanger 43 is connected to the line 42. On the other hand, a steam line 44 is connected to the steam turbine 41 at its steam inlet and outlet, and a condenser 45 . Circulation pump 46. A steam heater 47 is connected, and steam from the steam heater 47 is supplied to the turbine 41 through a line 44.

This steam turbine 41 also drives a power generation unit 1148. A turbine-side secondary helium circulation line 49 connecting the helium heat exchanger 43 of the helium circulation line 42 and the steam heater 47 of the steam line 44 is connected, and the helium heat exchanger 49 is connected in parallel with the turbine-side secondary helium circulation line 49. An electrolysis-side secondary helium circulation line 50 connecting the exchanger 43 and the second heat exchanger 8 is connected, and a turbine-side valve 5152 and an electrolysis-side valve 53.54 that switch both lines 49.50 are connected.

In the embodiment shown in FIG. 4, when there is a surplus of power, the heat generated in the high-temperature gas-cooled nuclear reactor 40 is transferred to the steam supply line 1.
It is used for heating the water supply in step 2.

In this case, the turbine side valve 51. The valve 53, 54 on the electrolytic side is opened. Helium in the helium circulation line 42 is heated by the heat generated in the high-temperature gas-cooled nuclear reactor 40, and the heat is used in the helium heat exchanger 43 to heat the secondary helium circulating in the electrolysis side secondary helium circulation line 50. The feed water, which was heated to about 200°C passing through the second heat exchanger 18, is heated to 800°C by the heat of the secondary helium.

Further, when there is a power shortage, the turbine side valve 5152 is opened and the electrolysis side valves 53 and 54 are closed. The helium in the helium circulation line 42 of the high-temperature gas-cooled nuclear reactor 40 heats the secondary helium circulating in the Tahin side secondary helium circulation line 49 in the helium heat exchanger 43, and the secondary helium is heated in the steam heater 47. The water supplied in the steam line 44 is heated, and the steam turns the turbine 41 and also drives the power generation rJ448.

In this embodiment, the high-temperature waste-cooled nuclear reactor 40 can be operated at a constant amount of power at all times, both when there is a surplus of power and when there is a shortage of power.

FIG. 5 shows another embodiment of the present invention, in which a boiler is connected to the water supply line instead of heating the feed water in the steam supply line 12 using the heat generated in the high-temperature gas-cooled nuclear reactor 40 shown in FIG. This is what I did.

First, in the boiler 60, water supplied from a water supply pump 61 is heated via a water supply valve 62 in a heat exchanger tube 63 in the boiler 60, separated into gas and liquid in a gas-liquid separation drum 64, and the steam is passed from a steam valve 65 to a steam line. 66 and is supplied to a steam turbine 67 to drive a generator 68, and then to a condenser 69.
The water is then circulated again by the water supply pump 61.

On the other hand, the water in the water storage tank 15 is supplied from the pump 16 to the water supply line 70.
Water can be supplied to the heat exchanger tubes 63 of the boiler 60 via the electrolysis side water supply valve 71.

During electrolysis operation of this oxygen-hydrogen electrochemical reaction device 4, the water supply valve 62 and the steam valve 65 are closed, and the water storage tank 1
The water supplied in No. 5 is heated by the water supply pump 16 from the water supply line 70 through the valve 71 and through the heat transfer tube 63, and the steam separated into gas and liquid by the gas-liquid separation drum 64 is passed through the electrolysis side valve 72 to the steam supply line. 73 and further to the heat exchanger 20
is guided to the hydrogen electrode manifold 10 via the hydrogen electrode manifold 10, and is electrolyzed using surplus power from the power conditioning device 3. In this case, the mixed gas of H2O and H2 discharged from the hydrogen electrode side manifold 10 undergoes heat exchange with the inlet gas in the heat exchanger 20 and recovers the heat, and then is separated into H2O and H2 in the separator 21. The H2O is returned to the water storage tank 15, and after being pressurized by the compressor 22, the H2 is stored in the H2 storage tank 24 from the storage line 74 via the storage valve 23. Further, oxygen is passed through the heat exchanger 30 from the oxygen electrode side manifold 11 and is used as combustion air in the boiler 60 as an oxygen-rich gas. In this case, H2 stored in the H2 storage tank 24 may be used as fuel for the boiler 60 via the hydrogen utilization line 75 and valve 76 from the pump 25 as appropriate.

During power generation operation, hydrogen stored in the H2 storage tank 24 is supplied from the pump 25 to the hydrogen electrode side manifold 10 via the hydrogen supply line 13 and hydrogen supply valve 77, and oxygen is supplied from the air supply line 14 to the hydrogen electrode side manifold 10. Power is generated by being supplied to the pole side manifold 11. In this case boiler 60
In this case, the water supply valve 62 and the steam valve 65 are opened, the turbine 67 is driven, and the generator is driven.

FIG. 6 shows still another embodiment of the present invention, in which the oxygen-hydrogen electrochemical reaction device 4 is divided into two parts: an electrolytic cell 4a and a fuel cell 4b. 6 basically consists of an electrolytic hydrogen production device IA, a fuel cell plant IB, and a power adjustment device 3 that connects the electrolytic hydrogen production device IA, the fuel cell plant IB, and the power line 2.

First, the electrolytic hydrogen production device IA includes an H20 electrolytic cell 4a that electrolyzes water in a steam state into hydrogen and oxygen.
The electrodes in the electrolytic cell 4a are connected to the AC/DC converter 3a of the power adjustment device 3. Water vapor, which is a raw material to be supplied to the electrolytic cell 4a, is heated from a water storage tank 15a by a water supply pump 16a through a water supply line 70 through a valve 71 and a heat transfer tube 63, and the vapor is separated into gas and liquid by a gas-liquid separation drum 64 and then electrolyzed. flows through a side valve 72 to a steam supply line 73;
Further, it is guided to the electrolytic cell 4a via the heat exchanger 20a, where it is electrolyzed using surplus power from the power adjustment device 3.

In this electrolytic cell 4a, H2O is decomposed by the reaction shown in equation (1) above, and hydrogen gas is generated at the hydrogen electrode (anode'), and oxygen gas is also generated at the oxygen electrode (cathode) side.

At this time, in the decomposition tank 4a, the entire amount of H2O supplied is not consumed in the reaction of equation (1), so a mixed gas of H2O and H2 comes out at the outlet side of the hydrogen electrode.

This mixed dregs is heat exchanged with the inlet dregs in the heat exchanger 20a and heat is recovered, and then separated! H2O and H2 at 21a
H2O is returned to the water storage tank 15a, and H2 is pressurized by the compressor 12a and then transferred to the H2 storage tank 24.
stored in a.

Further, oxygen is discharged from the oxygen electrode side to the outside of the system through the heat exchanger 30a.

On the other hand, the fuel cell plant IB consists of a fuel cell 4b formed by sandwiching an electrolyte between a hydrogen electrode and an oxygen electrode, and supplies H2 to the hydrogen electrode and 02 to the oxygen electrode, which is the reverse of water electrolysis. The reaction generates electricity.

First, H2 in the H2 storage tank 13b is introduced into the hydrogen electrode side of the fuel cell 4b by a pump 25b through a heat exchanger 20b, while oxygen is pressurized by atmospheric air introduced into a compressor 29b via an air filter 28b. , heat exchanger 30b
is introduced into the oxygen electrode side of the fuel cell 4b through the fuel cell 4b.

The DC power generated by this fuel cell 4b is converted into AC by the orthogonal converter 3b of the power adjustment device 3, and the power supply line 2
It is supplied as electricity to make up for power shortages.

Note that H2O is released from the outlet of the hydrogen electrode of the fuel cell 4b.

A mixed gas of H2 is discharged, and from the outlet of the oxygen electrode, 0
Two concentrations of diluted air are discharged separately.

The mixed gas of H2O and H2 from the outlet of the hydrogen electrode is heat exchanged with the inlet gas in the heat exchanger 20b and the heat is recovered, and then separated into H2O and H2 in the separator 21b, and the H2O is returned to the water storage tank 15b. After the H2 is pressurized by the compressor 22b, it is circulated again to the hydrogen electrode side of the fuel cell 4b together with H2 from the H2 storage tank 24b. In addition, the air with reduced O2 concentration at the outlet of the oxygen electrode passes through the heat exchanger 30b,
There, it exchanges heat with the air on the inlet side and is then discharged outside the system.

The H2O returned to the water storage tank 15b is transferred to the water storage tank 15a of the electrolytic hydrogen production device IA by the pump 16b, and the H2 stored in the H2 storage tank 24a of the electrolytic hydrogen production device IA is transferred from the pump 25a to the water storage tank 15a of the electrolytic hydrogen production device IA. 76b to the H2 storage tank 24b of the fuel cell plant IB as appropriate, and the hydrogen utilization line 75. valve 7
It is supplied as fuel to the boiler 60 via 6a.

The electrolytic cell 4a of the electrolytic hydrogen production device IA includes an air filter 15a, a compressor 16a, and a heat exchanger 17a.
Air can be supplied through the

In the above, the electrolytic hydrogen production apparatus IA is operated when there is surplus electricity. That is, surplus power is supplied from the power supply line 2 to the electrolytic cell 4a via the orthogonal converter 3a, and the boiler 6
0 through the steam supply line 73 to the electrolytic cell 4a to produce H2, and convert the H2 into H2.
2 storage tank 24a and, as appropriate, the fuel cell plant I.
Transfer to the H2 storage tank 24b of B. In addition, when there is a power shortage, the fuel cell plant IB is operated and the H2 storage tank 24b is operated.
H2 is supplied to the hydrogen electrode side of the fuel cell 4b, and at the same time, air is supplied to the oxygen electrode to generate power, and the obtained power is supplied to the power supply line 2 via the orthogonal converter 3b.

In the embodiment shown in FIG. 6, the electrolytic hydrogen production apparatus I
A and the fuel cell plant IB are operated by alternately switching between power storage operation and power generation operation, but since both are independent, they can be operated even when both are wrapped at the same time.

3 Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.

(1) By electrolyzing water vapor using surplus electricity and storing it as hydrogen, there is little loss attrition during storage, and the overall efficiency of the power storage device is extremely high.

(2) Efficient power generation can be achieved by generating electricity using stored hydrogen through an electrochemical reaction.

[Brief explanation of the drawing]

Fig. 1 is a system diagram showing one embodiment of the present invention, and Fig. 2 is a system diagram showing an embodiment of the present invention.
Figure 3 is a detailed cross-sectional view of the oxygen-hydrogen electrochemical reaction device shown in Figure 2. Figure 3 is a diagram showing the theory, electrolysis and power generation voltage characteristics for temperature of the oxygen-hydrogen electrochemical reaction equipment shown in Figure 2. Figure 4 is a modification of Figure 1. A system diagram showing an example, FIG. 5 is a system diagram showing a modification of the pond in FIG. 1, and FIG. 6 is a system diagram showing a modification of the pond in FIG. In the figure, 52 is a power supply line, 3 is a power adjustment device, 4 is an oxygen-hydrogen electrochemical reaction device, 7 is an electrolyte, 8 is a hydrogen electrode, 9 is an oxygen electrode, 10 is a hydrogen electrode side manifold, 11 is an oxygen electrode side manifold, 12 is a steam supply line, 13 is a hydrogen supply line, 14 is an air supply line, 15 is a water storage tank, and 24 is an H2 storage tank.

Claims (1)

[Claims] 1. In a power storage power generation device for storing power during surplus power and using it in times of power shortage, a hydrogen electrode and an oxygen electrode are formed sandwiched between electrolytes, and the electrodes are An oxygen-hydrogen electrification reactor with manifolds formed on both sides,
a steam supply line that supplies steam to the hydrogen electrode side manifold; a hydrogen storage device that stores the produced hydrogen;
A hydrogen supply line that supplies hydrogen to the hydrogen electrode side manifold of the oxygen-hydrogen electrification reactor during power generation, an air supply line that supplies air to the oxygen electrode manifold, and surplus power that is converted into DC and supplied to both electrodes during electrolysis. What is claimed is: 1. A power storage power generation device characterized by comprising: a power adjustment device that converts direct current to alternating current during power generation; 2. An electrolytic hydrogen production device that uses water vapor as a raw material and electrolyzes it with surplus electricity to produce hydrogen and oxygen, in a power storage power generation device that stores electricity when there is surplus electricity and uses it in times of electricity shortage. , a boiler plant that supplies steam to the electrolytic hydrogen production device and uses the produced oxygen as combustion air, a hydrogen storage device that stores the produced hydrogen, and a reactor that reacts the stored hydrogen with oxygen in the air. A power storage device characterized by comprising: a fuel cell that generates electricity by converting surplus power into direct current, and a power adjustment device that converts surplus power into direct current to supply power to an electrolytic hydrogen production device, and converts direct current from the fuel cell into alternating current. Power generator.