CN206070012U - A hydrogen production energy storage device coupled with resource utilization of CO2 - Google Patents

Abstract

This utility model provides a kind of coupling CO₂The hydrogen manufacturing energy storage device of recycling, including generator unit, Hydrogen Unit, control unit, it is provided with CO₂Import and the reversible SOFC of fuel inlet, the electricity output end of generator unit is connected with the electrical input of Hydrogen Unit and reversible SOFC respectively, the electricity output end of reversible SOFC is connected with Hydrogen Unit, the electric energy output of the power consumption control generator unit needed for power consumption of the control unit according to needed for the generated energy of generator unit, Hydrogen Unit are electrolysed and reversible SOFC electrolysis, the electric energy input of Hydrogen Unit, the electric energy input/output of reversible SOFC.Device of the present utility model has not only laid in regenerative resource, also achieves CO₂Recycling, efficiently solve the intermittent and fluctuation sex chromosome mosaicism because causing electrolytic hydrogen production using wind energy, solar electrical energy generation, and also it is avoided that the conventional electric energy of consumption, electrolytic hydrogen production cost, raising electrolytic efficiency are greatly reduced, extend the service life of electrolysis unit, improving the stability and capacity usage ratio of electrolysis unit.

Description

A hydrogen production energy storage device coupled with resource utilization of CO2

technical field

The utility model belongs to the technical field of energy utilization, in particular to a hydrogen production energy storage device for SPE coupling _CO2 resource utilization with wind energy-solar energy-SOEC energy complementary.

Background technique

In the course of human development, fossil energy such as coal, oil, and natural gas has made outstanding contributions to the progress of human civilization. In the next few decades, fossil energy will still play a pivotal role in the development of human society. However, with the rapid development of economy and population, factors such as over-exploitation and low utilization of fossil energy have caused a worldwide energy crisis and seriously damaged the ecological balance, especially in underdeveloped countries with relatively backward technology or In developing countries, environmental pollution is increasingly harmful to people's lives. Therefore, developing new energy sources and developing clean and efficient energy conversion strategies has become an inevitable choice for human survival and development.

As a clean renewable energy source, hydrogen is recognized as the ultimate choice for energy supply. Solid oxide electrolyte (SPE) water electrolysis hydrogen production technology can produce high-purity hydrogen, so it is very suitable for the development of hydrogen fuel cells. At present, the electrolysis efficiency of SPE hydrogen production can reach up to 75%, but the total hydrogen production efficiency is only 35%. This is because hydrogen production technology mainly consumes electric energy, and the average electric energy required to produce hydrogen per cubic meter is 4.5~ 5.5kWh, electricity consumption accounts for 80% of the entire hydrogen production cost. Therefore, how to effectively reduce the cost of hydrogen production and improve the efficiency of hydrogen production is an important topic of research in this field.

In recent years, the power generation technology using renewable energy such as wind energy and solar energy has developed rapidly around the world, and the production scale and marketization of wind energy and solar power generation have also been further expanded. However, due to the instability of wind energy and solar power generation, it is difficult to intelligently connect to the grid. Therefore, wind energy and solar energy can be indirectly stored in _H2 through SPE electrolysis of water to produce hydrogen. This method is more conducive to energy storage and integration. Transportation, and the transportation process does not require a complicated grid transportation system, and the energy loss is small. For example, the Chinese patent document CN105631230A discloses a direct coupling optimization method of solar photovoltaic modules and SPE electrolyzers. This method accurately calculates the number of photovoltaic panels connected in series in the photovoltaic power generation and hydrogen production system, so that photovoltaic modules can be directly coupled with SPE The electrolyzer is connected, thereby optimizing the resource allocation and improving the overall working efficiency of the hydrogen production system. However, wind and solar power generation is greatly affected by weather factors. When there is no sunlight at night, cloudy and rainy days, or insufficient wind power, wind and solar power generation alone will be intermittent and volatile, which will affect the efficiency of SPE electrolytic hydrogen production. The above-mentioned technologies Obviously, this actual situation has not been taken into account, so it is impossible to overcome the intermittent and fluctuating defects of SPE electrolytic hydrogen production caused by the use of wind or solar power.

As we all know, the consumption of fossil energy is closely related to the emission of CO ₂ , and the issue of global warming caused by greenhouse gases such as CO ₂ has become an important issue discussed by the international community today. The solid oxide electrolysis cell (SOEC) technology can co-electrolyze _CO2 and water to produce synthesis gas, turning _CO2 into treasure and realizing the resource utilization of _CO2 . In addition, the reverse operation of SOEC becomes a solid oxide fuel cell (SOFC), which can convert chemical energy into electrical energy, has wide fuel adaptability (for example, the fuel used can be H ₂ , CO or hydrocarbons), compact structure, Simple maintenance, high partial load efficiency, etc. The above-mentioned solid oxide fuel cell that can be in both the SOFC working mode and the SOEC working mode is called a reversible solid oxide fuel cell, or reversible SOFC for short.

In summary, how to realize the coupling of reversible SOFC and SPE electrolytic hydrogen production technology, so that the SOFC power generation system can be used to supply power to SPE to solve the intermittent and fluctuating problems of SPE electrolytic hydrogen production caused by wind or solar power generation , and the purpose of resource utilization of CO ₂ can be achieved through the SOEC electrolysis system, which is still a technical blank in this field.

Utility model content

The technical problem to be solved by the utility model is to overcome the defect that the existing technology cannot realize the coupling of reversible SOFC and electrolytic hydrogen production due to low conversion efficiency, and then provide a hydrogen production energy storage device that can couple _CO2 resource utilization to solve Intermittent and fluctuating problems of electrolytic hydrogen production due to the use of wind or solar power generation, while realizing the resource utilization of _CO2 .

For this reason, the technical scheme that the utility model realizes the above-mentioned purpose is:

A hydrogen production energy storage device coupled with resource utilization of _CO2 , comprising:

Power generation units, including wind turbines and/or solar cells;

A hydrogen production unit, which includes an electrolysis device and a hydrogen storage tank connected to the electrolysis device, and the electrolysis device is connected to the electrical output end of the power generation unit;

Also includes:

A reversible SOFC, the electrical input of the reversible SOFC is connected to the electrical output of the power generation unit, the electrical output of the reversible SOFC is connected to the electrolysis device, and the reversible SOFC is also provided with a _CO2 inlet and a fuel inlet ;

The control unit is used for controlling the electric energy output of the power generation unit, controlling the The electric energy input of the hydrogen production unit, and the electric energy output or input for controlling the reversible SOFC.

Preferably, the control unit is used to control the power generation unit to supply power to the electrolysis device and the reversible SOFC respectively when Q1>Q2+Q3, so that the electrolysis device electrolyzes water to produce hydrogen, and the reversible SOFC Enter the SOEC working mode to co-electrolyze water and CO ₂ to produce a mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ ; and/or

The control unit is used to control the power generation unit to only supply power to the electrolysis device when Q2+Q3>Q1>Q2; and/or

The control unit is used to control the reversible SOFC to enter the SOFC working mode to generate electricity when Q2>Q1, and the generated electric energy supplies power to the electrolysis device;

Wherein, Q1 is the power generation capacity of the power generation unit, Q2 is the power consumption required for the electrolysis of water by the electrolysis device, and Q3 is the power consumption required for the co-electrolysis of water and _CO by the reversible SOFC.

Preferably, the control unit includes an A/D converter, a transformer and a controller connected in sequence;

The controller is used to transmit the electric energy generated by the power generation unit to the electrolysis device, the reversible SOFC and/or the grid, and transmit the electric energy generated by the reversible SOFC to the electrolysis device and/or the grid.

Preferably, the fuel inlet is connected to the hydrogen storage tank; the reversible SOFC is also provided with a cathode tail gas outlet, and the cathode tail gas outlet is connected to a cathode water recovery device.

Further, it also includes:

A _CO gas tank connected to the _CO inlet of the reversible SOFC;

a water storage tank, respectively connected to the water inlet of the reversible SOFC and the water inlet of the electrolysis device;

A mixed gas tank is connected to the gas outlet of the reversible SOFC, and the mixed gas tank is used for containing mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ .

Furthermore, it also includes:

A water exchange tank, the water exchange tank includes a water tank body and a first heat exchange pipe and a second heat exchange pipe spirally arranged along the outer wall of the water tank body;

The water tank body is provided with a water inlet and a water outlet, the water inlet is connected to the water storage tank, and the water outlet is respectively connected to the water inlet of the reversible SOFC and the water inlet of the electrolysis device;

The two ends of the first heat exchange pipe are respectively connected with the gas outlet of the reversible SOFC and the mixed gas tank;

Both ends of the second heat exchange pipe are respectively connected with the cathode tail gas outlet and the cathode water recovery device.

Furthermore, it also includes a condensation recovery device, which is arranged on the first heat exchange pipe between the water tank body and the mixed gas tank, and communicates with the gas outlet of the reversible SOFC and the mixed gas tank .

Preferably, the condensation recovery device is connected to the water tank body through a first solenoid valve;

The cathode water recovery device is connected with the water tank body through a second electromagnetic valve.

Preferably, the control unit also includes:

The third solenoid valve is arranged on the connection line between the _CO2 gas tank and the _CO2 inlet of the reversible SOFC;

The fourth solenoid valve is arranged on the connection line between the water storage tank and the water inlet of the reversible SOFC;

The fifth electromagnetic valve is arranged on the connection line between the hydrogen inlet of the reversible SOFC and the hydrogen storage tank;

The sixth electromagnetic valve is arranged on the connection line between the water storage tank and the water tank body.

Preferably, the controller is used to control on/off of the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve and the sixth solenoid valve.

The above-mentioned technical scheme of the utility model has the following advantages:

1. The hydrogen production energy storage device coupled with _CO2 resource utilization described in the utility model includes a power generation unit composed of a wind generator and/or a solar cell, a hydrogen production unit, a control unit, and a _CO2 inlet and For the reversible SOFC with fuel inlet, the electrical output end of the power generation unit is connected to the electrolysis device in the hydrogen production unit and the electrical input end of the reversible SOFC respectively, and the electrical output end of the reversible SOFC is also connected to the electrolysis device. The power generation, the power consumption required for the electrolysis of the hydrogen production unit and the power consumption required for the electrolysis of the reversible SOFC are used to control the power output of the power generation unit, control the power input of the hydrogen production unit, and control the power output or input of the reversible SOFC. The device described in the utility model is provided with a control unit, so that the control unit can be based on the power generation Q1 of the power generation unit, the power consumption _Q2 required for the electrolysis of water by the electrolysis device, and the power consumption required for the co-electrolysis of water and CO by reversible SOFC Q3 The size relationship between the three determines the power output of the power generation unit, the power input of the hydrogen production unit, and the power output or input of the reversible SOFC, which effectively solves the inability to realize the coupling of SOFC and electrolytic hydrogen production due to low conversion efficiency in the existing technology Specifically, when Q1>Q2+Q3, the power generation unit supplies power to the electrolysis device and the reversible SOFC respectively, so that the electrolysis device electrolyzes water to produce hydrogen, and the reversible SOFC also enters the SOEC working mode to jointly electrolyze water and CO ₂ A mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ is obtained, so that wind energy and solar energy are converted into chemical energy and stored in hydrogen and the above mixed gas, which not only reserves renewable energy, but also realizes CO ₂ resource utilization; when Q2+Q3>Q1>Q2, the power generation unit only supplies power to the electrolysis device to ensure continuous hydrogen production; and when Q2>Q1, that is, the power generated by the power generation unit cannot meet the needs of the electrolysis device for electrolysis of water The reversible SOFC enters the SOFC working mode, uses fuel and air to generate electricity, and then provides electric energy for the electrolysis device, thereby ensuring the continuous electrolysis of hydrogen production by the electrolysis device, thereby effectively solving the problem of electrolysis hydrogen production caused by the use of wind energy and solar power. Intermittent and volatility issues.

Moreover, the device of the present invention provides electric energy for the hydrogen production unit and the reversible SOFC by using renewable energy such as wind energy and solar energy to generate electricity. negative impact; even in the case of insufficient wind energy and solar energy, the utility model can continue to provide electric energy for the hydrogen production unit through reversible SOFC power generation. The electrolysis efficiency is improved, so that the hydrogen production efficiency of the utility model can be as high as 70%. On the other hand, it also helps to prolong the service life of the electrolysis device and improve the stability and energy utilization rate of the electrolysis device.

2. In the hydrogen production energy storage device coupled with _CO resource utilization described in the utility model, the control unit is provided with a controller to transmit the electric energy generated by the power generation unit to the electrolysis device, the reversible SOFC and/or the power grid, and the The electric energy generated by the reversible SOFC is transmitted to the electrolysis device and/or the power grid, so that the device of the utility model can not only store hydrogen, but also realize grid-connected operation. During the peak period of power consumption, the power generation unit can provide excess power to the power grid , At the same time, the reversible SOFC can also use the chemical energy stored in its own co-electrolysis to transmit electricity to thousands of households, so as to achieve the purpose of peak shaving and valley filling.

3. The hydrogen production energy storage device coupled with _CO2 resource utilization described in this utility model, since the working temperature of the reversible SOFC in the SOEC working mode is about 800°C, the co-electrolyzed water and _CO2 produced at such a high temperature The mixed gas itself carries a large amount of heat, and the cathode tail gas produced by the reversible SOFC in the SOFC working mode also has a certain amount of heat. Therefore, the utility model is also provided with a heat exchange tank, which includes a water tank body and a spiral along the outer wall of the water tank body. The first heat exchange pipe and the second heat exchange pipe are provided. The water tank body is provided with a water inlet and a water outlet. The water inlet is connected to the water storage tank, and the water outlet is respectively connected to the water inlet of the reversible SOFC and the water inlet of the electrolysis device. , the two ends of the first heat exchange pipe are respectively connected with the gas outlet of the reversible SOFC and the mixed gas tank, and the two ends of the second heat exchange pipe are respectively connected with the cathode tail gas outlet and the cathode water recovery device; thus it is possible to use the mixed gas and The cathode tail gas preheats the water source required in the electrolysis process, which is conducive to further reducing the cost of hydrogen production, improving system efficiency, and realizing cogeneration of heat and power.

Description of drawings

In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the accompanying drawings that need to be used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some of the embodiments of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the schematic diagram of the hydrogen production energy storage device coupling _CO2 resource utilization described in the utility model;

Wherein, the reference signs are as follows:

1-solar battery; 2-wind generator; 3-electrolysis device; 4-hydrogen storage tank; 5-electrical output of power generation unit; 6-electrical output of reversible SOFC; 7-electrical input of reversible SOFC, 8 -Reversible SOFC; 9-control unit; 10-cathode water recovery device; 11-CO ₂ gas tank; 12-mixed gas tank; 13-water storage tank; 14-water tank body; 15-first heat exchange pipe; 16- The second heat exchange pipeline; 17-condensation recovery device; 18-the first solenoid valve; 19-the second solenoid valve; 20-the third solenoid valve; 21-the fourth solenoid valve; 22-the fifth solenoid valve; 23-the first solenoid valve Six solenoid valves; 24-water vaporizer; 25-gas mixer; 26-oxygen tank.

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Example 1

As shown in Figure 1, the hydrogen production energy storage device coupled with resource utilization of _CO2 in this embodiment includes a power generation unit, a hydrogen production unit, a reversible SOFC and a control unit, wherein: the power generation unit includes a solar cell 1 and a wind power Generator 2; the hydrogen production unit includes an electrolysis device 3 and a hydrogen storage tank 4 and an oxygen tank 26 connected to the electrolysis device 3, and the electrolysis device 3 is connected to the electrical output terminal 5 of the power generation unit; the The electrical input terminal 7 of the reversible SOFC 8 is connected to the electrical output terminal 5 of the power generation unit, the electrical output terminal 6 of the reversible SOFC 8 is connected to the electrolysis device 3, and the reversible SOFC 8 is also provided with _CO2 inlet and Fuel inlet; the control unit 9 is used to control the power consumption of the power generation unit according to the power generation of the power generation unit, the power consumption required for the electrolysis of the hydrogen production unit and the power consumption required for the electrolysis of the reversible SOFC 8 Electrical energy output, electrical energy input to control the hydrogen production unit, and electrical energy output or input to control the reversible SOFC 8 .

The device described in this embodiment is provided with a control unit, so that the control unit can be based on the power generation Q1 of the power generation unit, the power consumption Q2 required for the electrolysis of water by the electrolysis device, and the power consumption required for the reversible SOFC co-electrolysis of water and _CO2 Q3 The size relationship between the three determines the power output of the power generation unit, the power input of the hydrogen production unit, and the power output or input of the reversible SOFC, which effectively solves the inability to realize the coupling of SOFC and electrolytic hydrogen production due to low conversion efficiency in the existing technology Specifically, when Q1>Q2+Q3, the power generation unit supplies power to the electrolysis device and the reversible SOFC respectively, so that the electrolysis device electrolyzes water to produce hydrogen, and the reversible SOFC also enters the SOEC working mode to jointly electrolyze water and CO ₂ A mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ is obtained, so that wind energy and solar energy are converted into chemical energy and stored in hydrogen and the above mixed gas, which not only reserves renewable energy, but also realizes CO ₂ resource utilization; when Q2+Q3>Q1>Q2, the power generation unit only supplies power to the electrolysis device to ensure continuous hydrogen production; and when Q2>Q1, that is, the power generated by the power generation unit cannot meet the needs of the electrolysis device for electrolysis of water The reversible SOFC enters the SOFC working mode, uses fuel and air to generate electricity, and then provides electric energy for the electrolysis device, thereby ensuring the continuous electrolysis of hydrogen production by the electrolysis device, thereby effectively solving the problem of electrolysis hydrogen production caused by the use of wind energy and solar power. Intermittent and volatility issues. Moreover, the device of this embodiment provides electric energy for the hydrogen production unit and the reversible SOFC by utilizing renewable energy such as wind energy and solar energy to generate electricity. negative impact; even in the case of insufficient wind energy and solar energy, this embodiment can continue to provide electric energy for the hydrogen production unit through reversible SOFC power generation. The electrolysis efficiency is improved, so that the hydrogen production efficiency of this embodiment can be as high as 70%. On the other hand, it also helps to prolong the service life of the electrolysis device, improve the stability and energy utilization rate of the electrolysis device.

In this embodiment, the control unit 9 includes an A/D converter, a transformer and a controller connected in sequence; the controller is used to transmit the electric energy generated by the power generation unit to the electrolysis device 3, the The reversible SOFC 8 and/or the grid, and the electric energy generated by the reversible SOFC 8 is transmitted to the electrolysis device 3 and/or the grid, so that the device of this embodiment can not only store hydrogen, but also realize grid-connected operation. During the peak period of electricity consumption, the power generation unit can provide excess electric energy to the grid, and at the same time, the reversible SOFC can also use the chemical energy stored in its own co-electrolysis to transmit electricity to thousands of households to achieve the purpose of peak load reduction and valley filling.

As a preferred embodiment, the fuel inlet is connected to the hydrogen storage tank 4, so that the hydrogen produced by electrolysis of the hydrogen production device is used as the fuel of the SOFC to generate electricity. Further, the reversible SOFC 8 is also provided with a cathode tail gas outlet, and the cathode tail gas outlet is connected to a cathode water recovery device 10 .

As an optional implementation, the device in this embodiment also includes a _CO gas tank 11 connected to the _CO inlet of the reversible SOFC 8, a water inlet of the reversible SOFC 8 and the electrolysis device 3 respectively. The water storage tank 13 connected to the water inlet, the water vaporizer 24, the gas mixer 25, and the mixed gas tank 12 connected to the gas outlet of the reversible SOFC 8; in this embodiment, the water storage tank 13 After the water is vaporized by the water vaporizer 24, it is fully mixed with the CO ₂ gas from the CO ₂ gas tank 11 in the gas mixer 25, and then enters the reversible SOFC 8 for co-electrolysis to produce gas containing H ₂ , CO, CH ₄ and C ₂ The mixed gas of H ₄ is stored in the mixed gas tank 12. The mixed gas can be used as fuel for SOFC, and can be separated to obtain pure H ₂ , CO, CH ₄ and C ₂ H ₄ gases.

Since the working temperature of the reversible SOFC 8 in the SOEC working mode is about 800°C, the mixed gas produced by the co-electrolysis of water and CO ₂ at such a high temperature carries a large amount of heat itself, and the reversible SOFC 8 produces in the SOFC working mode The cathode tail gas also has a certain amount of heat, so as a preferred embodiment, the device described in this embodiment is also provided with a water exchange tank, the water exchange tank includes a water tank body 14 and a spirally arranged water tank along the outer wall of the water tank body 14 The first heat exchange pipe 15 and the second heat exchange pipe 16, wherein, the water tank body 14 is provided with a water inlet and a water outlet, the water inlet is connected with the water storage tank 13, and the water outlet is connected with the water storage tank 13 respectively. The water inlet of the reversible SOFC 8 is connected to the water inlet of the electrolysis device 3, and the two ends of the first heat exchange pipe 15 communicate with the gas outlet of the reversible SOFC 8 and the mixed gas tank 12 respectively , the two ends of the second heat exchange pipe 16 are respectively connected with the cathode tail gas outlet and the cathode water recovery device 10; thus, the water source required in the electrolysis process can be preheated by using the mixed gas and the cathode tail gas respectively, thereby facilitating Further reduce the cost of hydrogen production, improve system efficiency, and realize cogeneration of heat and power.

In order to obtain as pure fuel gas as possible, the device described in this embodiment also includes a condensation recovery device 17, which is arranged on the first heat exchange pipe 15 between the water tank body 14 and the mixed gas tank 12, And communicate with the gas outlet of the reversible SOFC 8 and the mixed gas tank 12, so that the water vapor doped in the mixed gas produced by co-electrolysis can be removed.

Considering that the water in the condensation recovery device and the cathode water recovery device is relatively pure and has a certain temperature, the device described in this embodiment is further provided with a first solenoid valve 18 and a second solenoid valve 19, so as to separate the The condensation recovery device 17 and the cathode water recovery device 10 are connected to the water tank body 14 . In addition, the device described in this embodiment also includes a third solenoid valve 20 arranged on the connecting line between the CO ₂ gas tank 11 and the CO ₂ inlet of the reversible SOFC 8, and is arranged in the The fourth electromagnetic valve 21 on the connection line between the water storage tank 13 and the water inlet of the reversible SOFC 8 is arranged on the connection line between the hydrogen inlet of the reversible SOFC 8 and the hydrogen storage tank 4 The fifth solenoid valve 22, and the sixth solenoid valve 23 arranged on the connection line between the water storage tank 13 and the water tank body 14, and the controller controls the opening/closing of the six solenoid valves In order to realize the automatic supply of _CO2 gas, hydrogen, water vapor and water, it is also beneficial to improve the hydrogen production and energy storage efficiency of the device described in this embodiment.

The SOEC in this example is a hydrogen electrode-supported or electrolyte-supported type, and the electrolyte can be one of YSZ, SDC, GDC, LSGM or a composite electrolyte, and the hydrogen electrode material is Ni-(YSZ, SDC, GDC), LSCM or For SFM, the oxygen electrode material is BSCF, LSCF or SSC.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the scope of protection of the utility model.

Claims (12)

1. A hydrogen production energy storage device coupled with resource utilization of _CO2 , comprising: A power generating unit comprising solar cells (1) and/or wind generators (2); A hydrogen production unit comprising an electrolysis device (3) and a hydrogen storage tank (4) connected to the electrolysis device (3), the electrolysis device (3) being connected to the electrical output terminal (5) of the power generation unit; It is characterized in that it also includes: A reversible SOFC (8), the electrical input terminal (7) of the reversible SOFC (8) is connected to the electrical output terminal (5) of the power generation unit, and the electrical output terminal (6) of the reversible SOFC (8) is connected to the The electrolysis device (3) is connected, and the reversible SOFC (8) is also provided with _CO2 inlet and fuel inlet; A control unit (9), configured to control the power consumption of the power generation unit according to the power generation of the power generation unit, the power consumption required for the electrolysis of the hydrogen production unit, and the power consumption required for the electrolysis of the reversible SOFC (8). Electric energy output, controlling the electric energy input of the hydrogen production unit, and controlling the electric energy output or input of the reversible SOFC (8). 2. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 1, characterized in that the control unit (9) is used to control the power generation unit to generate The electrolysis device (3) and the reversible SOFC (8) are powered so that the electrolysis device (3) electrolyzes water to produce hydrogen, while the reversible SOFC (8) enters the SOEC working mode to electrolyze water and _CO to produce hydrogen Mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ ; Wherein, Q1 is the power generation capacity of the power generation unit, Q2 is the power consumption required for the electrolysis of water by the electrolysis device (3), and Q3 is the power consumption required for the co-electrolysis of water and _CO by the reversible SOFC (8) quantity. 3. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 1, wherein the control unit (9) is used to control the power generation unit to only supplying power to the electrolysis device (3); Wherein, Q1 is the power generation capacity of the power generation unit, Q2 is the power consumption required for the electrolysis of water by the electrolysis device (3), and Q3 is the power consumption required for the co-electrolysis of water and _CO by the reversible SOFC (8) quantity. 4. The hydrogen production energy storage device coupled with _CO resource utilization according to claim 1, characterized in that the control unit (9) is used to control the reversible SOFC (8) to enter the SOFC when Q2>Q1 The working mode generates electricity, and the electric energy generated supplies power for the electrolysis device (3); Wherein, Q1 is the power generation capacity of the power generation unit, and Q2 is the power consumption required by the electrolysis device (3) for electrolyzing water. 5. The hydrogen production energy storage device coupled with resource utilization of _CO according to any one of claims 1-4, characterized in that the control unit (9) includes an A/D converter and a transformer connected in sequence and the controller; The controller is used to transmit the electric energy generated by the power generation unit to the electrolysis device (3), the reversible SOFC (8) and/or the power grid, and transmit the electric energy generated by the reversible SOFC (8) to the The electrolysis device (3) and/or the grid. 6. The hydrogen production energy storage device coupled with _CO resource utilization according to claim 5, characterized in that, the fuel inlet is communicated with the hydrogen storage tank (4); The reversible SOFC (8) is also provided with a cathode tail gas outlet, and the cathode tail gas outlet is connected to a cathode water recovery device (10). 7. The hydrogen production energy storage device coupled with _CO resource utilization according to claim 6, further comprising: CO _The gas tank (11), is connected with the _CO inlet of the reversible SOFC (8); A water storage tank (13), connected to the water inlet of the reversible SOFC (8) and the water inlet of the electrolysis device (3) respectively; A mixed gas tank (12) is connected to the gas outlet of the reversible SOFC (8), and the mixed gas tank (12) is used for containing mixed gas containing H ₂ , CO, CH ₄ and C ₂ H ₄ . 8. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 7, further comprising: A water exchange tank, the water exchange tank includes a water tank body (14) and a first heat exchange pipe (15) and a second heat exchange pipe (16) spirally arranged along the outer wall of the water tank body (14); The water tank body (14) is provided with a water inlet and a water outlet, the water inlet is connected with the water storage tank (13), and the water outlet is respectively connected with the water inlet of the reversible SOFC (8) and the water outlet. The water inlet of the electrolysis device (3) is connected; The two ends of the first heat exchange pipe (15) communicate with the gas outlet of the reversible SOFC (8) and the mixed gas tank (12) respectively; Both ends of the second heat exchange pipe (16) communicate with the cathode tail gas outlet and the cathode water recovery device (10) respectively. 9. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 8, characterized in that it further comprises a condensation recovery device (17), which is arranged between the water tank body (14) and the mixed gas The first heat exchange pipe (15) between the tanks (12) is connected with the gas outlet of the reversible SOFC (8) and the mixed gas tank (12). 10. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 9, characterized in that, the condensation recovery device (17) connects with the water tank body (14) through the first solenoid valve (18) connected; The cathode water recovery device (10) is connected with the water tank body (14) through a second electromagnetic valve (19). 11. The hydrogen production energy storage device coupled with resource utilization of _CO according to any one of claims 8-10, characterized in that the control unit further comprises: The third electromagnetic valve (20), is arranged on the _CO connection line between the gas tank (11) and the _CO inlet of the reversible SOFC (8); The fourth solenoid valve (21) is arranged on the connection line between the water storage tank (13) and the water inlet of the reversible SOFC (8); The fifth electromagnetic valve (22) is arranged on the connection line between the hydrogen inlet port of the reversible SOFC (8) and the hydrogen storage tank (4); The sixth electromagnetic valve (23) is arranged on the connection line between the water storage tank (13) and the water tank body (14). 12. The hydrogen production energy storage device coupled with resource utilization of _CO according to claim 11, characterized in that the controller is used to control the first solenoid valve (18), the second solenoid valve (19), On/off of the third solenoid valve (20), the fourth solenoid valve (21), the fifth solenoid valve (22) and the sixth solenoid valve (23).