CN102800878B - Integrated direct fuel cell energy storing and supplying system based on liquid hydrogen storage material - Google Patents

Abstract

The invention relates to a direct fuel cell energy storage energy supply system. An integrated direct fuel cell energy storage and energy supply system based on liquid hydrogen storage materials, characterized in that: the electrochemical hydrogenation device unit and the fuel cell unit are integrated; the working medium inlet of the fuel cell unit is controlled by the first working The medium pipe communicates with the first port of the second three-way valve, the second port of the second three-way valve communicates with the bottom of the hydrogen storage material hydride tank through the second working medium pipe, and the third port of the second three-way valve The port is connected with the bottom of the hydrogen storage material tank through the sixth working medium pipe; the working medium outlet of the fuel cell monomer is connected with the first port of the third three-way valve through the fifth working medium pipe, and the outlet of the third three-way valve The second port communicates with the hydrogen storage material hydride tank through the fourth working medium pipe, and the third port of the third three-way valve communicates with the hydrogen storage material tank through the third working medium pipe; the hydrogen storage material tank contains A hydrogen storage material, the hydrogen storage material is a multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon. The invention not only simplifies the device (simple structure), but also greatly improves the safety.

Description

An integrated direct fuel cell energy storage and energy supply system based on liquid hydrogen storage materials

technical field

The invention relates to hydrogen energy utilization technology in the field of clean energy and new energy. Specifically, it is an energy optimization utilization technology centered on the storage of hydrogen energy and the mutual conversion technology of hydrogen energy and electric energy. That is, electrochemical hydrogenation is performed on a specific reversible hydrogen storage material to achieve electrical energy storage, and the hydrogen energy in the hydrogen storage material hydride is converted into electrical energy through a direct fuel cell. In particular, it relates to an integrated direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials.

Background technique

Energy is the basis for the survival and development of modern society. The supply capacity of energy is closely related to the sustainable development of the national economy and is one of the strategic foundations of national security. Due to the rapid economic development, the traditional non-renewable fossil fuels and other energy sources are becoming more and more urgent. Today, governments of all countries are placing their hopes on hydrogen energy, solar energy, wind energy and other emerging energy sources. However, due to the significant time instability of these new energy sources, therefore The development and utilization of these new energy sources are limited. In addition, due to the unbalanced power consumption pattern, the grid has insufficient power during peak power consumption and excess power during low power consumption, which also affects the full utilization of existing energy sources. In view of the urgent need for the development of new energy sources and the effective utilization of traditional energy sources, all countries today are committed to the development of "peak-shaving and valley-filling" technologies. At present, the "peak shaving and valley filling" technology mainly stores and utilizes excess electric energy by using batteries, compressed air, and water storage in highlands. However, these methods cannot be popularized on a large scale either because of their low efficiency or because of the limitations of regional environmental conditions. Hydrogen energy is non-polluting and has high energy conversion efficiency (up to 80%), and it can also be converted into electric energy without being restricted by region and environment. Therefore, if a convenient and efficient electric energy-hydrogen energy conversion and storage technology can be developed, It will be widely applicable to the needs of "peak shaving and valley filling" of various power supply systems. Therefore, it is necessary to develop an integrated system of energy storage and energy supply based on hydrogen energy.

We believe that the system can realize the mutual conversion of electric energy and hydrogen energy and the storage and supply of energy according to the following electrochemical reactions,

Electrolytic hydrogenation reaction: aromatic ring molecule + H ₂ O → aromatic ring hydrogenation molecule + O ₂ (1)

Dehydrogenation discharge reaction: aromatic ring hydrogenation molecule + O ₂ → aromatic ring molecule + H ₂ O (2)

Among them, the electrolytic hydrogenation reaction (1) is to directly hydrogenate organic molecules containing unsaturated bonds through electrolysis of water. When being electrolyzed, the anode water is decomposed into oxygen and protons, and the protons diffuse to the cathode through the electrolyte, and the hydrogen atoms formed in the adsorbed state directly react with the aromatic ring molecules to hydrogenate the aromatic ring molecules. Thus, electrical energy is converted into hydrogen energy and stored in hydrogenated aromatic ring molecules.

The principle of the above-mentioned discharge dehydrogenation reaction (2) is shown in Figure 2. The aromatic ring hydrogenation molecules directly undergo incomplete oxidative dehydrogenation discharge at the anode of the battery to generate aromatic ring molecules and protons, which diffuse to the cathode through the electrolyte. Oxygen reacts to form water. This converts the hydrogen energy stored in the hydrogenated aromatic ring molecules into electrical energy. It is not difficult to see that the reaction product of this process, the aromatic ring molecules, can be recycled again through reaction (1) hydrogenation. Aromatic ring molecules and their hydrogenated molecules acted as hydrogen storage materials and directly provided hydrogen sources, respectively. It can be seen that the battery formed by the reaction (2) is a recyclable hydrogenated hydrogen storage material direct fuel cell. For the sake of brevity, it is called R-direct fuel cell (Reversible-direct fuel cell) to distinguish it from the existing direct fuel cell in which organic matter is completely oxidized.

As for the direct fuel cell where the fuel is completely oxidized, it is mainly an alcohol small molecule direct fuel cell at present. The products of the battery are CO ₂ and H ₂ O water, which are the complete oxidation products of alcohol. It is difficult to reverse the electrolysis into alcohol and store electrical energy as chemical energy. Thereby it is impossible to be used for the "peak-shaving and valley-filling" of the above-mentioned electric energy. And the R-direct fuel cell related to the above-mentioned cell reaction (2) in the present invention has not been reported yet.

The electrochemical catalytic hydrogenation of unsaturated organic molecules about the above-mentioned battery reaction (1) has been studied since the 1980s, such as Karivmiller. In 1986 and 1988, Karivmiller studied the cathodic electrochemical reduction hydrogenation of phenanthrene, anthracene, etc. in aqueous solution ( Karivmiller, E. and R.I. Pacut (1986). Tetrahedron 42(8): 2185-2192./Karivmiller, E., R.I. Pacut, et al. (1988). Topics in Current Chemistry 148: 97-130.); Pintauro Equal to 1991, the electrochemical hydrogenation effect of benzene and other aromatic compounds on the Raney nickel electrode was verified (Pintauro, P.N. & J.R.Bontha(1991).Journal of Applied Electrochemistry 21(9):799-804.); Jiang, In 2006, J.H et al. used AB5 alloy hydrogen-carrying materials as electrode catalytic materials, and also studied the electrochemical hydrogenation behavior of nitrobenzene (Jiang, J.H. and B.L.Wu(2006).Journal of Applied Electrochemistry36(7) : 733-738.). These studies are mainly aimed at the basic research of the electrochemical hydrogenation of unsaturated molecules, and are not aimed at the conversion and storage of electric energy to hydrogen energy and convenient discharge dehydrogenation. Therefore, the types and types of aromatic molecules selected in the present invention Its physical state, temperature conditions and energy loss in the dehydrogenation process are obviously different from those of the above-mentioned reported research molecules, which will be analyzed and discussed in detail below.

1) Molecules must be non-volatile liquids at working temperature (<150°C), not solids. Although some solids can be dissolved in a certain solvent, the solvent will reduce its concentration on the electrode surface, such as solids such as phenanthrene and anthracene, and volatile liquids such as benzene cannot be used as their working medium;

2) The dehydrogenation temperature of the hydrogenation molecule should not be too high. For example, the dehydrogenation temperature of cyclohexane, a hydrogenation molecule of benzene, is higher than 300°C, which is far beyond the working temperature of the battery and should not be used as a working medium; at the same time, if the dehydrogenation temperature High, the polarization of the anode of the battery is severe, which increases the energy loss in the dehydrogenation discharge. If the dehydrogenation temperature is high, small aromatic ring molecules such as benzene, which require a large amount of heat, are not suitable as working media. In addition, unstable molecules such as vinyl alcohol cannot be used as a working medium.

Based on the above factors, it is necessary to develop a new type of organic liquid hydrogen storage material that is liquid at least at the working temperature and whose hydride dehydrogenation temperature is low enough to provide a simple structure and a new type of direct fuel cell energy storage system.

Contents of the invention

The object of the present invention is to provide an integrated direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials, which has the characteristics of simple structure.

In order to achieve the above object, the technical solution adopted by the present invention is: an integrated direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials, which includes fuel cell monomers and electrochemical hydrogenation device monomers, fuel cell monomers The body is connected to the generator and the load respectively through an AC/DC conversion circuit; its feature is that the structure of the electrochemical hydrogenation device is the same as that of the fuel cell, and the electrochemical hydrogenation device and the fuel cell are integrated , the cathode of the fuel cell monomer is shared with the anode of the electrochemical hydrogenation device monomer, and the anode of the fuel cell monomer is shared with the cathode of the electrochemical hydrogenation device monomer; the water and gas outlet 17 of the fuel cell monomer 16 is connected by the water outlet pipe 18 and The water tank 20 is connected, and the water tank 20 is provided with an air vent (exhaust port) 19; one end of the first water inlet pipe 21 is connected with the bottom of the water tank 20, and the other end of the first water inlet pipe 21 is connected with the first three The first port of the through valve 23 is connected, and the first water inlet pipe 21 is provided with a water pump 22; the second port of the first three-way valve 23 is connected with the water and gas inlet 26 of the fuel cell unit 16 by the second water inlet pipe 25 , the third port of the first three-way valve 23 is connected to the oxygen pipe 24; the working medium inlet 13 of the fuel cell 16 is communicated with the first port of the second three-way valve 30 through the first working medium pipe 27, and the first working medium The medium pipe 27 is provided with a working medium pump 29, the second port of the second three-way valve 30 is communicated with the bottom of the hydrogen storage material hydride tank 32 by the second working medium pipe 28, the third port of the second three-way valve 30 The port is connected to the bottom of the hydrogen storage material tank 31 by the sixth working medium pipe 37; the working medium outlet 14 of the fuel cell unit 16 is connected to the first port of the third three-way valve 35 by the fifth working medium pipe 36, The second port of the third three-way valve 35 is connected with the hydrogen storage material hydride tank 32 by the fourth working medium pipe 34, and the third port of the third three-way valve 35 is connected with the hydrogen storage material tank by the third working medium pipe 33. 31 is connected; the hydrogen storage material tank 31 is filled with hydrogen storage materials, and the hydrogen storage materials are multiple mixed liquid unsaturated heterocyclic aromatic hydrocarbons.

The multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically a plurality of liquid unsaturated heterocyclic aromatic hydrocarbon molecules (such as: carbazole, N-methylcarbazole, N-ethylcarbazole, indole, quinoline, etc.) Any one or any two or more of them are mixed, and any two or more of them are mixed in any proportion.

The heterocycles in the liquid unsaturated heterocyclic aromatic hydrocarbon molecules can be all rings are heterocycles, or some heterocycles, and the total number of heteroatoms ranges from 1 to 20; the total number of heterocycles and aromatic rings ranges from 1 to 20. 20; The number of carbon atoms in a single ring in the liquid unsaturated heterocyclic aromatic hydrocarbon molecule is 4 to 10.

The heteroatoms in the heterocycle are any one or two or more of nitrogen, oxygen, sulfur and the like.

The liquid unsaturated heterocyclic aromatic hydrocarbon molecules are carbazole, N-methylcarbazole, N-ethylcarbazole, indole or quinoline and the like.

Working medium: the hydrogen storage material (i.e. working medium) of the present invention is a multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon (with a ring number of 1 to 20) containing heteroatoms such as nitrogen, oxygen, and sulfur in the ring. It is a mixture liquid hydrogen storage material containing different side groups on the aromatic ring to form a series of condensed/aromatic aromatic hydrocarbons. When the number of fused hetero/aromatic aromatic hydrocarbons is less than 8, it exists in the form of a single organic molecule; when the number of rings is 8-15, it is in the form of an oligomer; when the number of rings exceeds 15, it is in the form of a conjugated polymer . Studies have shown that the more rings of fused-ring aromatic hydrocarbons, the lower the dehydrogenation temperature of hydrogenated molecules, and the less energy consumed for dehydrogenation, but the higher the melting point. In addition, if the ring contains heteroatoms, the dehydrogenation temperature of the condensed ring aromatic hydrocarbon hydride will be further reduced, but its melting point will be further increased. If multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbons are used as hydrogen storage materials, the electrolytic cell of the above-mentioned direct electrolytic hydrogenation reaction (1) and the R-direct fuel coupling of the dehydrogenation discharge reaction (2) can form a hydrogen energy-based integrated energy storage and energy supply system. The system's working medium (multiple mixed liquid unsaturated heterocyclic aromatic hydrocarbons) can be recycled, has zero emissions, is environmentally friendly, and is not restricted by regions and environments, so it can meet the urgent needs of "shaving peaks and filling valleys" of various power supply systems. The multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbons in the present invention can realize reversible hydrogen storage and discharge within the temperature range of 50 to 280° C., and the hydrogen storage capacity can reach 8.0 wt%.

Principle of the present invention:

(1) Direct electrochemical hydrogenation electrolysis cell

The principle of the electrolytic cell for direct electrochemical hydrogenation of hydrogen storage materials is shown in Figure 1. The reaction of the electrolytic cell is: hydrogen storage material molecules + H ₂ O → hydrogen storage material hydride molecules + O ₂ , and the structure of the electrolytic cell device is shown in Figure 3 , when the electrolytic cell is working, the hydrogen storage material in the hydrogen storage material tank (the storage tank is separated into a hydrogen storage material tank and a hydrogen storage material hydride tank by a movable partition) is pumped into the cathode of the battery, and when water is electrolyzed, the anode water It is decomposed into oxygen and protons, and the protons diffuse to the cathode through the electrolyte to be reduced, and the hydrogen atoms formed in the adsorbed state directly react with the molecules of the organic liquid hydrogen storage material to hydrogenate the organic liquid hydrogen storage material containing unsaturated hetero/aromatic rings. The hydrogenated molecules enter the hydrogen storage material hydride tank. The system can use membrane electrodes to form a stack. Each cell in the stack includes flow field plates, seals, and membrane electrodes (as shown in Figures 6 and 7).

(2) R-direct fuel cell

R-direct fuel cell is a new type of direct fuel cell. Its principle is shown in Figure 2. The battery reaction is: hydrogen storage material hydride molecules + O ₂ →hydrogen storage material molecules + H ₂ O. The structure of the battery device is shown in Figure 4. When the fuel cell is working, the hydrogen storage material hydride in the hydrogen storage material hydride tank (the storage tank is separated into a hydrogen storage material tank and a hydrogen storage material hydride tank by a movable partition) is Pumped into the anode of the battery and the anode directly undergoes a dehydrogenation discharge reaction to generate hydrogen storage material molecules and protons. The hydrogen storage material molecules flow out of the electrode and enter the hydrogen storage material tank, while the protons diffuse to the cathode through the electrolyte and react with oxygen on the cathode to form water. . The system can use membrane electrodes to form a stack. Each cell in the stack includes flow field plates, seals, and membrane electrodes (as shown in Figures 6 and 7).

The above-mentioned direct fuel cell reaction and direct electrochemical hydrogenation processes are inverse processes, that is, when the fuel cell process occurs, the system discharges outward, and hydrogen energy is converted into electrical energy; storage of hydrogen energy. Thus, a pollution-free, zero-emission integrated energy storage and energy supply system can be formed.

The beneficial effects of the present invention are: the electrolytic hydrogenation cell and the R-direct fuel cell in the above direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials can also be used as a system with independent functions, especially wherein the R-direct fuel cell The battery can be directly used in the field of mobile transportation as vehicle power. Compared with the existing vehicle fuel cell system, the device is greatly simplified, and the system has the characteristics of simple structure. Since there is no need to release hydrogen first, not only the device is simplified, but also the safety is greatly improved. At the same time, since the R-direct fuel will not be automatically dehydrogenated when the external circuit is open, it will be convenient to adjust the number of single cells in the battery stack at any time, and change the output power of the battery to meet the needs of random speed change of electric vehicles.

Description of drawings

Figure 1 is a schematic diagram of electrochemical hydrogenation.

Figure 2 is a schematic diagram of a direct fuel cell.

Fig. 3 is a structural diagram of an electrochemical hydrogenation electrolysis cell.

Figure 4 is a structural diagram of the R-direct fuel cell.

Fig. 5 is a schematic structural diagram of the present invention.

Figure 6 is a schematic diagram of the stack structure.

Fig. 7 is a left side view of the liquid flow field plate.

Reference numerals: Reference numerals: 1 is a gas flow field plate, 2 is a seal, 3 is a membrane electrode, 9 is a liquid flow field plate, 10 is an air flow channel, 11 is an air and water flow channel, and 12 is a liquid flow channel , 13 is the working medium (hydrogen storage material) inlet, 14 is the working medium outlet, 15 is the air cooling unit; 16-fuel cell unit, 17-water and gas outlet, 18-water outlet pipe, 19-vent hole, 20- Water tank, 21-first water inlet pipe, 22-water pump, 23-first three-way valve, 24-oxygen pipe, 25-second water inlet pipe, 26-water and air inlet, 27-first working medium pipe, 28- Second working medium pipe, 29-working medium pump, 30-second three-way valve, 31-hydrogen storage material tank, 32-hydrogen storage material hydride tank, 33-third working medium pipe, 34-fourth working medium Pipe, 35-the third three-way valve, 36-the fifth working medium pipe, 37-the sixth working medium pipe.

Detailed ways

In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

Example 1:

An integrated direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials, which includes a fuel cell unit and an electrochemical hydrogenation unit; the structure of the electrochemical hydrogenation unit unit is the same as that of the fuel cell unit, The electrochemical hydrogenation device unit is integrated with the fuel cell unit, the fuel cell unit (also the electrochemical hydrogenation unit unit) is connected to the generator and the load through the AC/DC conversion circuit, the cathode of the fuel cell unit and the battery The anode of the chemical hydrogenation unit monomer is shared, and the anode of the fuel cell unit is shared with the cathode of the electrochemical hydrogenation unit unit; the water and gas outlet 17 of the fuel cell unit 16 is communicated with the water tank 20 by the water outlet pipe 18, and the water tank 20 An exhaust hole (exhaust port) 19 is arranged on the top; one end of the first water inlet pipe 21 communicates with the bottom of the water tank 20, and the other end of the first water inlet pipe 21 communicates with the first port of the first three-way valve 23 , the first water inlet pipe 21 is provided with a water pump 22; the second port of the first three-way valve 23 communicates with the water and gas inlet 26 of the fuel cell unit 16 through the second water inlet pipe 25, and the second port of the first three-way valve 23 The three ports are connected to the oxygen pipe 24; the working medium inlet 13 of the fuel cell unit 16 is communicated with the first port of the second three-way valve 30 by the first working medium pipe 27, and the first working medium pipe 27 is provided with a working medium pump 29. The second port of the second three-way valve 30 is communicated with the bottom of the hydrogen storage material hydride tank 32 through the second working medium pipe 28, and the third port of the second three-way valve 30 is connected with the sixth working medium pipe 37. The bottom of the hydrogen storage material tank 31 is connected; the working medium outlet 14 of the fuel cell unit 16 is connected with the first port of the third three-way valve 35 by the fifth working medium pipe 36, and the second port of the third three-way valve 35 The port is communicated with the hydrogen storage material hydride tank 32 by the fourth working medium pipe 34, and the third port of the third three-way valve 35 is communicated with the hydrogen storage material tank 31 by the third working medium pipe 33; the hydrogen storage material The tank 31 contains a hydrogen storage material, which is a multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon. The multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically an indole hydrogen storage material with a hydrogen storage capacity of 6.4 wt%.

The integrated direct fuel cell energy storage energy supply system (two-electrode system) based on liquid hydrogen storage materials means that the selected electrodes of the fuel cell and the electrochemical hydrogenation device are exactly the same, the cathode of the fuel cell is shared with the anode of the electrochemical hydrogenation device, and the anode of the fuel cell and the anode of the electrochemical hydrogenation device are shared. The cathode of the electrochemical hydrogenation device is shared. The system only needs two kinds of electrodes, referred to as the AB structure, and its principle structure is shown in Figure 5. The system can use the membrane electrode method to form a stack. Each cell in the stack contains flow field plates, seals, and membrane electrodes (as shown in Figure 7). The structure of the AB type system is simple and compact, and the volume is small.

As shown in Figure 5, the entire fuel cell is composed of the same monomer superposition, and each monomer includes a fuel cell gas flow field plate 1, a seal 2, a membrane electrode 3, and a liquid flow field plate 9; every two fuel cell cells An air cooling device 15 is spaced between the bodies. Since the fuel cell process and the electrochemical hydrogenation process are completely reversible, each fuel cell cell is also a single electrochemical hydrogenation device. In the electrochemical hydrogenation process, the fuel cell cathode is the electrochemical hydrogenation device anode, and the fuel cell anode is also an electrochemical hydrogenation device. Hydrogenation plant cathode. Each part has a working medium (hydrogen storage material) inlet 13 and a working medium (hydrogen storage material) outlet 14, the gas flow field plate 1 has air and water flow channels 11, and the liquid flow field plate 9 has a liquid flow channel 12 (as shown in Figure 7).

When the power peak, the system is powered (charged), and the electrochemical hydrogenation process occurs. The hydrogen storage material is pumped out from the hydrogen storage material tank 31 and passes through the working medium inlet 13 and the liquid flow channel 12 to the surface of the cathode to undergo a hydrogenation reaction (the second working medium pipe 28, the third working medium pipe 33 is blocked, and the oxygen pipe does not work), the hydrogen storage material after hydrogenation flows out from the working medium outlet 14, and reaches the hydrogen storage material hydride tank 32 through the pipeline; Oxygen evolution reaction occurs on the surface of the anode. When the power is low, the fuel cell process occurs, the system supplies power to the outside (discharge), and the hydrogenated hydrogen storage material (hydrogen storage material hydride) reaches the surface of the anode through the working medium inlet 13 and the liquid flow channel 12, and a dehydrogenation reaction occurs ( The sixth working medium pipe 37, the fourth working medium pipe 34, the first water inlet pipe 21 are blocked, and the water pump does not work), the product reaches the hydrogen storage material tank 31 through the working medium outlet 14; the air passes through the air and water flow channel 11 to reach the cathode surface to generate reaction, the generated water enters the water tank 20 through the pipeline.

Example 2:

It is basically the same as Example 1, except that the multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically a binary mixed hydrogen storage material of quinoline and N-ethylcarbazole, and the mass ratio of the two components is quinoline Phenyl:N-ethylcarbazole=2:3, and its hydrogen storage capacity is 5.3wt%.

Example 3:

It is basically the same as Example 1, except that the multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically a ternary mixed hydrogen storage material of N-methylcarbazole, quinoline and N-ethylcarbazole, three The mass ratio of the components is N-methylcarbazole:quinoline:N-ethylcarbazole=5:3:3, and its hydrogen storage capacity is 5.0wt%.

Example 4:

It is basically the same as Example 1, except that the multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically a quaternary mixed hydrogen storage material of carbazole, N-methylcarbazole, N-ethylcarbazole and quinoline , the mass ratio of the four components is carbazole:N-methylcarbazole:N-ethylcarbazole:quinoline=4:3:5:1, and its hydrogen storage capacity is 6.3wt%.

Example 5:

It is basically the same as Example 1, except that the multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbon is specifically a quaternary mixed hydrogen storage material of carbazole, N-methylcarbazole, N-ethylcarbazole and indole , the mass ratio of the four components is carbazole:N-methylcarbazole:N-ethylcarbazole:indole=2:7:3:5, and its hydrogen storage capacity is 5.9wt%.

All raw materials of multi-component mixed liquid unsaturated heterocyclic aromatic hydrocarbons listed in the present invention can realize the present invention, and the examples are not listed here one by one.

Claims (1)

1. based on an integral type direct fuel cell energy storage energy supplying system for liquid hydrogen storage material, it comprises fuel cell and electrochemical hydrogen gasifying device monomer, and fuel cell is connected with generator, load respectively by AC/DC change-over circuit; It is characterized in that: the structure of electrochemical hydrogen gasifying device monomer is identical with the structure of fuel cell, electrochemical hydrogen gasifying device monomer and fuel cell are integrated, the negative electrode of fuel cell and the anode of electrochemical hydrogen gasifying device monomer share, and the anode of fuel cell and the negative electrode of electrochemical hydrogen gasifying device monomer share; The gentle outlet of water (17) of fuel cell (16) is connected with water pot (20) by outlet pipe (18), and water pot (20) is provided with steam vent (19); One end of first water inlet pipe (21) is connected with the bottom of water pot (20), and the other end of the first water inlet pipe (21) is connected with the first port of the first triple valve (23), and the first water inlet pipe (21) is provided with water pump (22); Second port of the first triple valve (23) is connected with the gentle entrance of water (26) of fuel cell (16) by the second water inlet pipe (25), and the 3rd port of the first triple valve (23) connects oxygen hose (24); The working medium inlet (13) of fuel cell (16) is connected with the first port of the second triple valve (30) by the first working media pipe (27), first working media pipe (27) is provided with working media pump (29), second port of the second triple valve (30) is connected with the bottom of hydrogen storage material hydride tank (32) by the second working media pipe (28), and the 3rd port of the second triple valve (30) is connected with the bottom of hydrogen storage material tank (31) by the 6th working media pipe (37); The working medium exit port (14) of fuel cell (16) is connected by first port of the 5th working media pipe (36) with the 3rd triple valve (35), second port of the 3rd triple valve (35) is connected with hydrogen storage material hydride tank (32) by the 4th working media pipe (34), and the 3rd port of the 3rd triple valve (35) is connected with hydrogen storage material tank (31) by the 3rd working media pipe (33); Described hydrogen storage material tank (31) fills hydrogen storage material, and described hydrogen storage material is the liquid unsaturated heterocycle aromatic hydrocarbons of Diversity;

When cell operation, hydrogen storage material in hydrogen storage material tank is pumped to cell cathode, during brine electrolysis, oxygen and proton is decomposed in anode water, proton is reduced to negative electrode by electrolyte diffusion, directly and the molecular reaction of organic liquid hydrogen storage material, make hydrogen storage material obtain hydrogenation, the molecule after hydrogenation enters hydrogen storage material hydride tank to the hydrogen atom forming ADSORPTION STATE; When the fuel cell is operating, hydrogen storage material hydride in hydrogen storage material hydride tank is pumped to galvanic anode and directly anode generation dehydrogenation exoelectrical reaction, generate hydrogen storage material molecule and proton, hydrogen storage material molecule flows out electrode and enters hydrogen storage material tank, and proton by electrolyte diffusion to negative electrode, negative electrode reacts with oxygen generation water; The liquid unsaturated heterocycle aromatic hydrocarbons of described Diversity is specially any two the above mixing in multiple liquid unsaturated heterocycle aromatic hydrocarbon molecule, is any proportioning during any two above mixing; In described liquid unsaturated heterocycle aromatic hydrocarbon molecule, all rings are heterocycle, and hetero-atom total quantity scope is 1 to 20; Heterocycle total quantity is 1 to 20; In single ring in liquid unsaturated heterocycle aromatic hydrocarbon molecule, carbon atom number is 4 to 10; Hetero-atom in heterocycle is sulphur.