CN115710722A - Hydrolysis hydrogen production system and use method thereof - Google Patents

Abstract

The invention relates to a hydrolysis hydrogen production system and its use method, and relates to the technical field of hydrogen production, including a reactor, a feed assembly and a power generation assembly. The first reactant and the second reactant are respectively passed into the reaction space, the phase change heat storage layer is arranged on the outer wall of the reactor to form a hot end, and the heat dissipation fin is arranged on The outside of the thermoelectric battery pack is placed in the air to form a cold end. The thermoelectric battery pack performs thermoelectric power generation through the temperature difference between the hot end and the cold end. The heat can be used in parallel, and the temperature in the reaction space can be stabilized, which is conducive to the continuous and stable production of hydrogen. The phase change heat storage layer, thermoelectric battery pack and cooling fins are set up, on the one hand, it can continuously absorb through the hot end The reaction heat is combined with the cold end to generate power. On the other hand, the waste heat can be continuously dissipated into the air through the heat dissipation fins, which is conducive to stable power generation.

Description

A hydrolysis hydrogen production system and its application method

technical field

The invention relates to the technical field of hydrogen production, in particular to a hydrolysis hydrogen production system and its use method.

Background technique

The fuel cell power system has the advantages of high energy conversion efficiency, low emission, low operating noise and adaptability to different power requirements, and is an important option for conventional power systems. At present, the main application directions of fuel cell power systems are: ships, vehicles and underwater equipment. With the development and improvement of fuel cell technology, fuel cell power systems will be widely used. At present, long endurance is a major bottleneck in the development of fuel cell power systems. It has become the key to the development of long-endurance fuel cell power systems by greatly increasing the hydrogen storage density of hydrogen sources, thereby increasing the energy density of fuel cell power systems. However, the current mainstream high-pressure hydrogen cylinders cannot meet the needs of high energy density. Metal hydrides represented by sodium borohydride, magnesium hydride, calcium hydride and lithium hydride produce hydrogen through hydrolysis, and the hydrogen storage density can reach up to 25wt%, which is more than 7 times the hydrogen storage density of 35MPa high-pressure gas cylinders. It is the most advanced One of the revolutionary hydrogen source technologies.

There are also unsolved problems in the application of hydrogen production by hydrolysis, and one of the key issues is heat management. The hydrolysis reaction releases a large amount of heat. If the heat cannot be removed smoothly, the temperature of the hydrolysis hydrogen production system will rise. The hydrolysis reaction is greatly affected by temperature. The increase of temperature can promote the hydrogen production rate of hydrolysis, which can increase the hydrogen production rate and reaction conversion rate, but too high temperature is not conducive to the stable control of hydrogen production rate, and the reaction system temperature is too high There is a risk of uncontrolled reactions. At present, the temperature is regulated by means of cooling water heat exchange, which causes a lot of waste of heat. For example, the hydrolysis hydrogen production devices disclosed in patents CN104555916B and CN101973520B all perform heat exchange through cooling, and there is a waste of heat. The patent CN111533087A discloses a rate-controllable hydrolysis hydrogen production device and a control method. The hydrogen production rate is controlled by current pulses. Although the hydrogen production rate is controllable, it also causes waste of reaction heat generation.

However, how to remove the heat of hydrolysis reaction and utilize the heat of reaction is a technical problem of hydrogen production by hydrolysis. Therefore, the present invention proposes a hydrogen production system by hydrolysis.

Contents of the invention

In view of this, it is necessary to provide a hydrolysis hydrogen production system and its use method to solve the technical problem of how to remove the heat of hydrolysis reaction and utilize the heat of reaction in the prior art.

The present invention realizes through following technical scheme:

The invention provides a hydrolysis hydrogen production system, comprising:

A reactor, wherein a reaction space for hydrogen production by hydrolysis is formed inside the reactor, and the reactor is made of a heat-conducting material.

A feed assembly, the feed assembly is used to respectively feed the first reactant and the second reactant into the reaction space, and the first reactant and the second reactant react in the reaction space to generate hydrogen gas and exotherm.

A power generation component, the power generation component includes a phase change heat storage layer, a thermoelectric battery group and cooling fins connected in sequence, the phase change heat storage layer is arranged on the outer wall of the reactor, and the thermoelectric battery group is arranged on the On the outside of the phase-change heat storage layer, the heat dissipation fins are arranged outside the thermoelectric battery group, and the thermoelectric battery group performs thermoelectric power generation through the temperature difference between the phase-change heat storage layer and the heat dissipation fins.

Further, the phase-change heat storage layer is made of aluminum alloy or stainless steel, and the phase-change heat storage layer is a box structure with an accommodation cavity formed inside, and the accommodation cavity is filled with fatty acid organic matter.

Further, the heat dissipation fins are made of copper alloy material, and the heat dissipation fins include a plurality of fin bodies distributed at intervals.

Further, the first reactant is a metal hydride.

Further, the second reactant is an aqueous solution, an aqueous ethylene glycol solution or an aqueous glycerin solution.

Further, the metal hydride includes at least one of sodium borohydride, magnesium hydride, calcium hydride or lithium hydride.

Further, the metal hydride is made into pellets with a diameter of 3-8mm.

Further, the thermoelectric battery pack is composed of a plurality of N-type electrodes and P-type electrodes, and the material of the N-type electrodes is composed of SiGe and GaP with a mass ratio of 1:1 or Bi ₂ Te with a mass ratio of 1:1 ₃ and GaP, and the material of the P-type electrode is SiGe or Bi ₂ Te ₃ .

Further, the feeding assembly includes a first feeding assembly and a second feeding assembly, the first feeding assembly is used to feed the metal hydride into the reaction space; the second feeding assembly includes a storage A liquid tank and a pump body, the liquid storage tank is used to store aqueous solution, ethylene glycol aqueous solution or glycerin aqueous solution, and the pump body is used to transport the solution in the liquid storage tank to the reaction space.

The method for using any one of the above-mentioned hydrolysis hydrogen production systems includes the following steps:

S1: firstly pass the first reactant and the second reactant into the reaction space respectively, and generate hydrogen and release heat after the first reactant and the second reactant react in the reaction space.

S2: The phase change heat storage layer is arranged on the outer wall of the reactor to form a hot end, the heat dissipation fin is arranged on the outer side of the thermoelectric battery pack and placed in the air to form a cold end, the temperature difference The battery pack performs thermoelectric power generation through the temperature difference between the hot end and the cold end.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

In the present invention, the first reactant and the second reactant are respectively passed into the reaction space by setting the parts such as the reactor, the feeding assembly and the power generation assembly, and the first reactant and the second reactant The reactants react in the reaction space to generate hydrogen and release heat. The phase change heat storage layer is arranged on the outer wall of the reactor to form a hot end, and the heat dissipation fins are arranged on the thermoelectric battery pack. outside and placed in the air to form a cold end, the thermoelectric battery pack performs thermoelectric power generation through the temperature difference between the hot end and the cold end, and the thermoelectric battery pack can continuously absorb and utilize the heat generated by the reaction, and can The temperature in the reaction space is stabilized, which is conducive to the continuous and stable production of hydrogen. The phase change heat storage layer, thermoelectric battery pack and heat dissipation fins are set. On the one hand, the hot end can continuously absorb the reaction heat and cooperate with the cold end. To generate electricity, on the other hand, the waste heat can be continuously dissipated into the air through the heat dissipation fins to ensure that the temperature difference between the hot end and the cold end is stable, which is conducive to stable power generation. Therefore, the present invention adopts the above-mentioned structure , can remove the heat of hydrolysis reaction and utilize the reaction heat, avoiding the waste of energy.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a hydrolysis hydrogen production system provided by the present invention.

Reference signs: 1. Reactor; 11. Reaction space; 2. Feed assembly; 201, first reactant; 202, second reactant; 21, second delivery assembly; 211, liquid storage tank; 212, 3. Power generation components; 31. Phase change heat storage layer; 32. Thermoelectric battery pack; 33. Radiating fins.

Detailed ways

The preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to illustrate the present invention, but not to limit the present invention.

As shown in FIG. 1 , a hydrolysis hydrogen production system includes a reactor 1 , a feed assembly 2 and a power generation assembly 3 .

Inside the reactor 1 is formed a reaction space 11 for the hydrolysis reaction to produce hydrogen, and the reactor 1 is made of heat-conducting materials.

The feed assembly 2 is used to feed the first reactant 201 and the second reactant 202 into the reaction space 11 respectively, and the first reactant 201 and the second reactant 202 react in the reaction space 11 Hydrogen gas is produced and is exothermic.

The power generation assembly 3 includes a phase change heat storage layer 31, a thermoelectric battery pack 32 and a heat dissipation fin 33 connected in sequence, the phase change heat storage layer 31 is arranged on the outer wall of the reactor 1, and the thermoelectric battery pack 32 is arranged on the outside of the phase change heat storage layer 31, and the heat dissipation fins 33 are arranged on the outside of the thermoelectric battery pack 32, and the thermoelectric battery pack 32 passes through the phase change heat storage layer 31 and the heat dissipation fins 33 The temperature difference between the two ends of the power generation.

Wherein, the first reactant 201 and the second reactant 202 can be reactants in the prior art, as long as the reaction between the two can generate hydrogen and release heat, for example, the first reactant 201 has a mass ratio of A 2:1 mixture of magnesium hydride and sodium borohydride, the second reactant 202 is an aqueous solution, an aqueous solution of ethylene glycol or an aqueous glycerin solution, wherein, when the ambient temperature of the reaction is above 0°C, the second reactant 202 It can be any one of aqueous solution, ethylene glycol aqueous solution or glycerin aqueous solution. When the ambient temperature of the reaction is below 0°C, the second reactant 202 is preferably ethylene glycol aqueous solution or glycerin aqueous solution. This design can Ensure that the aqueous solution does not freeze during the reaction, which is conducive to the stable progress of the reaction. In particular, as long as the various reactants in the prior art can react as the first reactant 201 and the second reactant 202 respectively, and generate hydrogen And exothermic, can be applied to the hydrolysis hydrogen production system of the present invention.

In the present invention, the first reactant 201 and the second reactant 202 are respectively passed into the reaction space 11 by setting the reactor 1, the feed assembly 2 and the power generation assembly 3 and other components, and the first reactant The first reactant 201 and the second reactant 202 react in the reaction space 11 to produce hydrogen and release heat. The phase change heat storage layer 31 is arranged on the outer wall of the reactor 1 to form a hot end. The cooling fins 33 are arranged on the outside of the thermoelectric battery pack 32 and placed in the air to form a cold end. The thermoelectric battery pack 32 performs thermoelectric power generation through the temperature difference between the hot end and the cold end. The battery pack 32 can continuously absorb and utilize the heat generated by the reaction, and can stabilize the temperature in the reaction space 11, which is conducive to the continuous and stable production of hydrogen. The phase change heat storage layer 31, the thermoelectric battery pack 32 and the The cooling fins 33, on the one hand, can continuously absorb the reaction heat through the hot end and cooperate with the cold end to generate electricity; The temperature difference is stable, which is conducive to stable power generation. Therefore, by setting the above structure, the present invention can remove the heat of hydrolysis reaction and utilize the heat of reaction to avoid waste of energy.

In order to ensure that the temperature value of the hot end is stable so as to facilitate the stable operation of thermoelectric power generation, the phase change heat storage layer 31 is made of aluminum alloy or stainless steel material, and the phase change heat storage layer 31 is a box structure with internally formed The accommodating chamber is filled with fatty acid organic matter. By arranging the phase-change heat storage layer 31 and fatty acid organic matter, the temperature of the phase-change heat storage layer 31 after absorbing the heat of reaction is constant, which is beneficial to stable thermoelectric power generation. In particular, the accommodating cavity can also be filled with materials such as paraffin wax or raw oil. In theory, as long as it is an existing filling material that can maintain the absorbed reaction heat at a constant temperature, it can also be applied to the present invention.

In order to ensure that the temperature value of the cold end is stable so as to facilitate stable thermoelectric power generation, the heat dissipation fin 33 is made of copper alloy material, and the heat dissipation fin 33 includes a plurality of fin bodies distributed at intervals. On the one hand, arranging multiple fin bodies can speed up the rate of thermoelectric power generation, and on the other hand, the multiple fin bodies can dissipate waste heat to ensure that the temperature value of the cold end is stable, which is beneficial to the stable thermoelectric power generation.

In order to remove the heat of hydrolysis reaction and utilize the heat of reaction, the first reactant 201 is a metal hydride. The metal hydride includes at least one of sodium borohydride, magnesium hydride, calcium hydride or lithium hydride. The second reactant 202 is an aqueous solution, an aqueous ethylene glycol solution or an aqueous glycerin solution. The metal hydride is made into pellets with a diameter of 3-8mm. The thermoelectric battery pack 32 is composed of a plurality of N-type electrodes and P-type electrodes, and the material of the N-type electrodes is composed of SiGe and GaP with a mass ratio of 1:1 or Bi2Te3 and GaP with a mass ratio of 1:1. The material of the P-type electrode is SiGe or Bi2Te3. The feeding assembly 2 includes a first feeding assembly and a second feeding assembly 21, the first feeding assembly is used to feed metal hydride into the reaction space 11; the second feeding assembly 21 includes Liquid storage tank 211 and pump body 212, described liquid storage tank 211 is used for storing aqueous solution, ethylene glycol aqueous solution or glycerol aqueous solution, and described pump body 212 is used for delivering the solution in described liquid storage tank 211 to described reaction space11.

The method for using the hydrolysis hydrogen production system in any of the above embodiments includes the following steps:

S1: first pass the first reactant 201 and the second reactant 202 into the reaction space 11 respectively, and the first reactant 201 and the second reactant 202 react in the reaction space 11 to produce Hydrogen and exothermic.

S2: The phase change heat storage layer 31 is arranged on the outer wall of the reactor 1 to form a hot end, and the heat dissipation fin 33 is arranged on the outer side of the thermoelectric battery pack 32 and placed in air to form a cold end , the thermoelectric battery pack 32 performs thermoelectric power generation via the temperature difference between the hot end and the cold end.

The specific application examples of the hydrolysis hydrogen production system provided by the present invention are as follows:

Use case 1:

Firstly, composite pellets of magnesium hydride and sodium borohydride with a mass ratio of 2:1 are pre-installed in the reactor 1, with a diameter of 3-4mm. The outer wall of the reactor 1 is sequentially provided with phase change storage Thermal layer 31, thermoelectric battery pack 32 and cooling fins 33, the phase change heat storage layer 31 is filled with phase change paraffin, the phase change temperature is 70°C (relative to the temperature of the hot end), and the N pole material is mass The composition of SiGe and GaP with a ratio of 1:1, and the material of the P pole is SiGe. The cooling fins 33 have a multi-fin structure and are made of oxygen-free copper.

When the working environment temperature is -40°C (relative to the temperature of the cold end), the liquid storage tank 211 provides an aqueous solution of ethylene glycol with a volume fraction of 54%, and the pump body 212 is powered externally when starting. The pump body 212 injects the ethylene glycol aqueous solution into the reactor 1 at a rate of 0.5 L/min. At the same time, the hydrolysis hydrogen production reaction starts, and the external hydrogen supply is 3 SL/min. The air temperature is -40°C, and the power generated by the thermoelectric battery pack 32 is 15W.

Use case 2:

Firstly, composite pellets of magnesium hydride and sodium borohydride with a mass ratio of 2:1 are pre-installed in the reactor 1, with a diameter of 3-4mm. The outer wall of the reactor 1 is sequentially provided with phase change storage Thermal layer 31, thermoelectric battery pack 32 and cooling fins 33, the phase change heat storage layer 31 is filled with phase change paraffin, the phase change temperature is 70°C (relative to the temperature of the hot end), and the N pole material is mass The composition of SiGe and GaP with a ratio of 1:1, and the material of the P pole is SiGe. The cooling fins 33 have a multi-fin structure and are made of oxygen-free copper.

When the working environment temperature is -20°C (relative to the temperature of the cold end), the liquid storage tank 211 provides an aqueous solution of ethylene glycol with a volume fraction of 54%. Inject ethylene glycol aqueous solution into reactor 1 at a rate of 1/min to start the hydrolysis hydrogen production reaction, and the external hydrogen supply is 3SL/min. At this time, the wall temperature of reactor 1 is 70°C, and the ambient air temperature is -40°C. The generating power of the thermoelectric battery pack 32 is 12W.

Use case 3:

Firstly, composite pellets of magnesium hydride and sodium borohydride with a mass ratio of 2:1 are pre-installed in the reactor 1, with a diameter of 3-4mm. The outer wall of the reactor 1 is sequentially provided with phase change storage Thermal layer 31, thermoelectric battery pack 32 and cooling fins 33, the phase change heat storage layer 31 is filled with phase change paraffin, the phase change temperature is 70°C (relative to the temperature of the hot end), and the N pole material is mass The composition of SiGe and GaP with a ratio of 1:1, and the material of the P pole is SiGe. The cooling fins 33 have a multi-fin structure and are made of oxygen-free copper.

When the working environment temperature is 20° C. (relative to the temperature of the cold end), the liquid storage tank 211 provides an aqueous solution of ethylene glycol with a volume fraction of 54%. When starting, the external power supply for the water pump is 0.5 L/ Inject water into the reactor 1 at a rate of 1 min to start the hydrolysis hydrogen production reaction, and the external hydrogen supply is 3 SL/min. At this time, the wall temperature of the reactor 1 is 70°C, and the power generated by the thermoelectric battery pack 32 is 10W, which can be used for the water pump Power consumption is 10W.

Practical example 4:

Firstly, composite pellets of magnesium hydride and sodium borohydride with a mass ratio of 2:1 are pre-installed in the reactor 1, and the diameter is 4-6 mm. The outer wall of the reactor 1 is sequentially provided with phase change storage Thermal layer 31, thermoelectric battery pack 32 and cooling fins 33, the phase change heat storage layer 31 is filled with phase change paraffin, the phase change temperature is 70°C (relative to the temperature of the hot end), and the N pole material is mass The composition of SiGe and GaP with a ratio of 1:1, and the material of the P pole is SiGe. The cooling fins 33 have a multi-fin structure and are made of oxygen-free copper.

When the working environment temperature is -40°C (relative to the temperature of the cold end), the liquid storage tank 211 provides an aqueous solution of ethylene glycol with a volume fraction of 54%, and the pump body 212 is powered externally when starting. The pump body 212 injects the ethylene glycol aqueous solution into the reactor 1 at a rate of 0.5 L/min. At the same time, the hydrolysis hydrogen production reaction starts, and the external hydrogen supply is 3 SL/min. The air temperature is -40°C, and the power generated by the thermoelectric battery pack 32 is 14W.

Practical example 5:

Firstly, composite pellets of magnesium hydride and sodium borohydride with a mass ratio of 2:1 are pre-installed in the reactor 1, with a diameter of 6-8 mm, and the outer wall of the reactor 1 is sequentially provided with phase change reservoirs. Thermal layer 31, thermoelectric battery pack 32 and cooling fins 33, the phase change heat storage layer 31 is filled with phase change paraffin, the phase change temperature is 70°C (relative to the temperature of the hot end), and the N pole material is mass The composition of SiGe and GaP with a ratio of 1:1, and the material of the P pole is SiGe. The cooling fins 33 have a multi-fin structure and are made of oxygen-free copper.

When the working environment temperature is -40°C (relative to the temperature of the cold end), the liquid storage tank 211 provides an aqueous solution of ethylene glycol with a volume fraction of 54%, and the pump body 212 is powered externally when starting. The pump body 212 injects the ethylene glycol aqueous solution into the reactor 1 at a rate of 0.5 L/min. At the same time, the hydrolysis hydrogen production reaction starts, and the external hydrogen supply is 3 SL/min. The air temperature is -40°C, and the power generated by the thermoelectric battery pack 32 is 12W.

In summary, it can be seen from practical example 1, practical example 2 and practical example 3 that the temperature of the hot end can be controlled by the phase change heat storage layer 31 and the fatty acid organic matter in the containing chamber. When the temperature of the hot end is constant , the lower the ambient temperature, the lower the temperature of the cold end, so the temperature difference between the two ends of the thermoelectric battery pack 32 can be increased, and the power of power generation can be increased; it can be seen from practical example 1, practical example 4 and practical example 5 , the temperature at the hot end can be controlled by the diameter of the metal hydride. In theory, the smaller the diameter of the metal hydride, the more violent the reaction, resulting in an uncontrollable reaction. Therefore, in practical applications, adjusting the metal hydride The diameter of the hydride is 3-8mm, which is conducive to the stable progress of the reaction. When the temperature of the cold end is constant, the larger the diameter of the metal hydride, the more stable the reaction. Although the power generation is reduced, the temperature difference The temperature difference between the two ends of the battery pack 32 is relatively stable, which facilitates the stable progress of the reaction.

Compared with the prior art, the hydrolysis hydrogen production system provided by the present invention has the following beneficial effects:

In the present invention, the first reactant 201 and the second reactant 202 are respectively passed into the reaction space 11 by setting the reactor 1, the feed assembly 2 and the power generation assembly 3 and other components, and the first reactant The first reactant 201 and the second reactant 202 react in the reaction space 11 to produce hydrogen and release heat. The phase change heat storage layer 31 is arranged on the outer wall of the reactor 1 to form a hot end. The cooling fins 33 are arranged on the outside of the thermoelectric battery pack 32 and placed in the air to form a cold end. The thermoelectric battery pack 32 performs thermoelectric power generation through the temperature difference between the hot end and the cold end. The battery pack 32 can continuously absorb and utilize the heat generated by the reaction, and can stabilize the temperature in the reaction space 11, which is conducive to the continuous and stable production of hydrogen. The phase change heat storage layer 31, the thermoelectric battery pack 32 and the The cooling fins 33, on the one hand, can continuously absorb the reaction heat through the hot end and cooperate with the cold end to generate electricity; The temperature difference is stable, which is conducive to stable power generation. Therefore, by setting the above structure, the present invention can remove the heat of hydrolysis reaction and utilize the heat of reaction to avoid waste of energy.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. All simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the present invention. .

Claims (10)

1. A system for hydrolysis hydrogen production, comprising:

the reactor is internally provided with a reaction space for hydrolysis hydrogen production reaction, and is made of a heat conducting material;

the feeding assembly is used for respectively feeding a first reactant and a second reactant into the reaction space, and the first reactant and the second reactant can generate hydrogen and release heat after reacting in the reaction space;

the electricity generation subassembly, the electricity generation subassembly is including the phase transition heat storage layer, the thermoelectric cell group and the radiating fin that connect gradually, the phase transition heat storage layer is located the lateral wall of reactor, the thermoelectric cell group is located the phase transition heat storage layer outside, radiating fin locates the outside of thermoelectric cell group, the thermoelectric cell group via thermoelectric cell group carries out thermoelectric generation with radiating fin's both ends temperature difference.

2. The system for hydrolysis hydrogen production according to claim 1, wherein the phase-change heat storage layer is made of aluminum alloy or stainless steel material, the phase-change heat storage layer is of a box structure, a containing cavity is formed inside the phase-change heat storage layer, and fatty acid organic matters are filled in the containing cavity.

3. The system for hydrogen production by hydrolysis according to claim 2, wherein the heat dissipation fin is made of a copper alloy material and comprises a plurality of fin bodies distributed at intervals.

4. The system for hydrolysis hydrogen production according to claim 3, wherein the first reactant is a metal hydride.

5. The system for hydrolysis hydrogen production according to claim 4, wherein the second reactant is an aqueous solution, an aqueous ethylene glycol solution, or an aqueous glycerol solution.

6. The system for hydrogen production by hydrolysis of claim 5, wherein the metal hydride comprises at least one of sodium borohydride, magnesium hydride, calcium hydride, or lithium hydride.

7. The system for hydrogen production by hydrolysis of claim 6, wherein the metal hydride is formed into pellets having a diameter of 3 to 8 mm.

8. The hydrolysis hydrogen production system of claim 7, wherein the temperature difference battery pack is composed of a plurality of N-type electrodes and P-type electrodes, the N-type electrodes are made of SiGe and GaP with a mass ratio of 1 ₂ Te ₃ And GaP, the material of the P-type electrode is SiGe or Bi ₂ Te ₃ 。

9. The system for hydrolysis hydrogen production according to claim 8, wherein the feed assembly comprises a first feed assembly and a second feed assembly, the first feed assembly is used for feeding metal hydride to the reaction space; the second material conveying component comprises a liquid storage tank and a pump body, the liquid storage tank is used for storing aqueous solution, glycol aqueous solution or glycerol aqueous solution, and the pump body is used for conveying the solution in the liquid storage tank to the reaction space.

10. Use of a system for hydrolysis hydrogen production according to any of claims 1 to 9, characterized in that it comprises the following steps:

s1: the first reactant and the second reactant are respectively introduced into the reaction space, and the first reactant and the second reactant generate hydrogen and release heat after reacting in the reaction space;

s2: the phase change heat storage layer is arranged on the outer side wall of the reactor to form a hot end, the radiating fins are arranged on the outer side of the temperature difference battery pack and arranged in air to form a cold end, and the temperature difference battery pack conducts temperature difference power generation through the temperature difference between the two ends of the hot end and the cold end.

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