Hydrolysis hydrogen production device with multiple hydrogen storage modules

Abstract

The utility model relates to the technical field of hydrolysis hydrogen production equipment, and provides a hydrolysis hydrogen production device with a plurality of hydrogen storage modules, which comprises a reactor and a plurality of hydrogen storage modules, a plurality of hydrogen storage modules are stacked in the reactor; gaps are reserved among the hydrogen storage modules; the hydrogen storage module is filled with metal hydride, and a space for hydrolytic expansion of the metal hydride is reserved at the upper part; a plurality of inner fins are welded on the inner wall of the reactor; the inner fins are inserted into gaps between the adjacent hydrogen storage modules; a nozzle is arranged at the top in the reactor, and a hydrogen outlet is formed in the bottom in the reactor. According to the utility model, metal hydrides can be stacked in the reactor in a modularized manner, and a gas-water channel can be expanded, so that the reaction is sufficient; meanwhile, reaction heat can be conducted out, the heat dissipation effect is improved, and the hydrogen production rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrolysis hydrogen production equipment, in particular to a hydrolysis hydrogen production device with multiple hydrogen storage modules. Background Art

[0002] Metal solid-state hydrogen storage technology in hydrogen energy is an important hydrogen storage method with many advantages and application prospects. Metal solid-state hydrogen storage refers to the chemical storage of hydrogen in metals or metal alloys. Through the chemical reaction between metals and hydrogen, hydrogen atoms are stored inside the lattice of metal materials to form metal hydrides. Metal solid-state hydrogen storage has the advantages of high hydrogen storage density, good safety, simple operation, and the ability to purify hydrogen.

[0003] Metal hydride magnesium hydride reacts with water to generate magnesium hydroxide and hydrogen, which has a high hydrogen storage density. The hydrogen production process by hydrolysis is relatively safe and is not prone to accidents such as leakage and explosion. The entire hydrogen production process does not produce harmful substances and is environmentally friendly. It is an ideal hydrogen production technology.

[0004] However, the hydrolysis of magnesium hydride to produce hydrogen has the problems of high heat release and difficulty in heat dissipation, resulting in incomplete reaction and high local temperature. At the same time, there are problems such as caking, coexistence of reactants and products, and low hydrogen production rate. Utility Model Content

[0005] The utility model mainly solves the technical problems of the prior art of magnesium hydride hydrolysis hydrogen production equipment, such as high reaction heat release and difficulty in heat dissipation, which lead to insufficient reaction and high local temperature. A hydrolysis hydrogen production device with multiple hydrogen storage modules is proposed. Metal hydrides are modularly stacked in a reactor, and the gas-water channel can be expanded to ensure sufficient reaction; at the same time, the reaction heat can be conducted out, the heat dissipation effect is improved, and the hydrogen production rate is increased.

[0006] The utility model provides a hydrolysis hydrogen production device with multiple hydrogen storage modules, comprising: a reactor and multiple hydrogen storage modules;

[0007] A plurality of hydrogen storage modules are stacked in the reactor; gaps are left between the plurality of hydrogen storage modules;

[0008] The hydrogen storage module is filled with metal hydride, and a space is reserved at the top for the metal hydride to hydrolyze and expand;

[0009] A plurality of inner fins are welded on the inner wall of the reactor; and the inner fins are inserted into the gaps between adjacent hydrogen storage modules;

[0010] A nozzle is arranged at the top of the reactor, and a hydrogen outlet is arranged at the bottom of the reactor.

[0011] Preferably, the reactor is cylindrical or square.

[0012] Preferably, the hydrogen storage module is enclosed in a fixed shape by a stainless steel wire mesh.

[0013] Preferably, the hydrogen storage module is arranged in two layers, an orifice plate is arranged between the upper hydrogen storage module and the lower hydrogen storage module, and the orifice plate is grooved.

[0014] Preferably, a plurality of internal fins are distributed in the circumferential direction inside the reactor.

[0015] Preferably, the height of the internal fin is not less than the stacking height of the hydrogen storage module.

[0016] Preferably, the reactor has a jacket; circulating water is passed through the inside of the jacket; the jacket has a circulating water inlet and a circulating water outlet.

[0017] The hydrolysis hydrogen production device with a plurality of hydrogen storage modules provided by the present utility model has the following advantages compared with the prior art:

[0018] 1. The materials are loaded in a modular form, and the reaction materials are controlled in the hydrogen storage module, which is not easy to cause caking, and the reactants and products can coexist. The modularization of materials is more beneficial to the unloading of reaction products and the loading of new reaction materials.

[0019] 2. The hydrogen storage module is enclosed in a fixed shape by a stainless steel wire mesh; there is a gap between the hydrogen storage modules, and they are separated by a stainless steel orifice plate, which increases the channels for gas and water, enables water and hydrogen to pass through, makes the reaction more sufficient, and effectively takes out the heat at the same time, making the thermal field inside the reactor uniform, the hydrogen production rate stable, improving the heat dissipation effect, and enhancing the hydrogen production rate.

[0020] 3. The arrangement of the orifice plate and the internal fins between the upper hydrogen storage module and the lower hydrogen storage module effectively increases the heat transfer area; the internal fins are welded inside the reactor, which can fix the module on the one hand and play a role in heat conduction on the other hand. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the hydrolysis hydrogen production device with a plurality of hydrogen storage modules provided by the present utility model;

[0022] Figure 2 is a schematic layout diagram of a plurality of hydrogen storage modules provided in Embodiment 1;

[0023] Figure 3 is a schematic layout diagram of a plurality of hydrogen storage modules provided in Embodiment 2.

[0024] Reference numerals: 1, reactor; 2, hydrogen storage module; 3, internal fin; 4, orifice plate; 5, jacket; 6, nozzle; 7, circulating water inlet; 8, circulating water outlet; 9, hydrogen outlet. Detailed Embodiments

[0025] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the content are shown in the drawings.

[0026] Embodiment 1

[0027] As Figure 1 shown, a hydrogen production device by hydrolysis with multiple hydrogen storage modules provided in this embodiment includes: a reactor 1 and multiple hydrogen storage modules 2.

[0028] The reactor 1 is a container for hydrolysis reaction. According to different hydrolysis reaction conditions, the reactor 1 can be in a vertical cylindrical or square shape, and is provided with a device flange at the top.

[0029] A plurality of hydrogen storage modules 2 are stacked in the reactor 1; there are gaps between the multiple hydrogen storage modules 2, serving as gas-water channels. The interior of the hydrogen storage module 2 is filled with metal hydride (magnesium hydride), and a space for the hydrolysis expansion of the metal hydride is reserved at the upper part. The hydrogen storage module 2 is enclosed in a fixed shape by a stainless steel wire mesh. The cross-section of the hydrogen storage module 2 can be of any shape, preferably a square cross-section, and has a certain height. The wire mesh material is not limited, and carbon steel wire mesh, stainless steel wire mesh, or other forms of mesh structures can be used as long as they can withstand the reaction temperature.

[0030] In this embodiment, as Figure 2 shown, the hydrogen storage module 2 is a cube with a size of 80x80 mm and a height of 250 mm, and is arranged in the reactor 1 in the form of Figure 2 . Figure 2 The gap between the hydrogen storage modules 2 is 10 mm, and the thickness of the inner fin is 6 mm.

[0031] Specifically, the hydrogen storage module 2 is arranged in two layers up and down. However, those skilled in the art can know that the stacking layers are not limited to two layers, and the hydrogen storage module 2 can be stacked in multiple layers according to the size of the reactor 1. A perforated plate 4 is arranged between the upper hydrogen storage module 2 and the lower hydrogen storage module 2. The perforated plate 4 is grooved and clamped on the inner fin 3. On the one hand, it plays a supporting role for the upper hydrogen storage module 2, and on the other hand, it can increase the gas-water channel and the heat transfer area, and conduct the heat released by the reaction. The aperture and arrangement form on the perforated plate 4 can be opened according to different hydrogen storage materials and experimental parameters.

[0032] A plurality of internal fins 3 are welded to the inner wall of the reactor 1; the plurality of internal fins 3 are distributed in the circumferential direction inside the reactor 1. The internal fins 3 are stainless steel plates welded vertically along the inner wall of the reactor 1, and the internal fins 3 are inserted into the gaps between adjacent hydrogen storage modules 2. While fixing the positions of the hydrogen storage modules 2, the heat in the hydrogen storage modules 2 can be conducted out; the height of the internal fins 3 is not lower than the stacking height of the hydrogen storage modules 2 (the height of the internal fins 3 is the same as or slightly higher than the height after stacking of the hydrogen storage modules 2).

[0033] A nozzle 6 is arranged at the top inside the reactor 1, and a hydrogen outlet 9 is arranged at the bottom inside the reactor 1. The nozzle 6 is connected to a water source and can add water into the reactor 1. According to the required reaction rate of different hydrogen storage modules 2, a spiral nozzle, a solid cone nozzle, a hollow cone nozzle, etc. can be adopted.

[0034] The reactor 1 is provided with a jacket 5; circulating water passes through the inside of the jacket 5; the jacket 5 is provided with a circulating water inlet 7 and a circulating water outlet 8. When the outer wall of the reactor 1 is overheated, the circulating water is turned on for heat exchange to conduct out the heat on the outer wall of the reactor 1 and prevent the reactor 1 from overheating.

[0035] The working principle of the hydrogen production device by hydrolysis with multiple hydrogen storage modules of the present utility model: At the beginning of the reaction, water is added into the reactor 1 through the nozzle 9 at the top of the reactor 1. The water reacts with the metal hydride, releasing hydrogen and generating a large amount of heat. If this heat is not conducted out in time, the temperature inside the reactor 1 will rise rapidly and the pressure will increase, causing the reactor 1 to overheat and overpressure; if heat is only removed through the external jacket 5, only the heat near the wall of the reactor 1 can be removed, and the heat at the reaction center cannot be removed quickly. In the present utility model, the metal hydride is respectively filled in individual hydrogen storage modules 2, and the hydrogen storage modules 2 are enclosed in a fixed shape by a stainless steel wire mesh; there is a certain gap between the hydrogen storage modules 2 to increase the gas-water channels; at the same time, the hydrogen storage modules 2 can be stacked, and an orifice plate 4 is arranged between the upper hydrogen storage module 2 and the lower hydrogen storage module 2, which can not only play a supporting role but also conduct out the heat from the reactor, so that the hydrogen release rate can be stable.

[0036] Embodiment 2

[0037] A hydrogen production device by hydrolysis with multiple hydrogen storage modules provided in this embodiment has the same main structure as that in Embodiment 1, and the difference lies in: the arrangement form of the multiple hydrogen storage modules 2.

[0038] In this embodiment, the cross-section of the hydrogen storage module 2 can be of any shape, preferably a hexagonal cross-section, and has a certain height. As Figure 3 shown, the hydrogen storage module 2 is a columnar body with a hexagonal shape with a side length of 30 mm and a height of 200 mm, and is arranged in the reactor 1 in the form of Figure 3 .Figure 3 The gap between the middle hydrogen storage module 2 and the hydrogen storage module 2 is 10 mm, and the thickness of the inner fin 3 is 6 mm.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifying the technical solutions recorded in the foregoing embodiments, or equivalently replacing some or all of the technical features therein, does not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrolysis hydrogen production device having multiple hydrogen storage modules, characterized in that: include: A reactor (1) and a plurality of hydrogen storage modules (2); A plurality of hydrogen storage modules (2) are stacked in the reactor (1); gaps are left between the plurality of hydrogen storage modules (2); The hydrogen storage module (2) is filled with metal hydride, and a space is reserved at the top for the metal hydride to hydrolyze and expand; A plurality of inner fins (3) are welded to the inner wall of the reactor (1); and the inner fins (3) are inserted into the gaps between adjacent hydrogen storage modules (2); A nozzle (6) is arranged at the top of the reactor (1), and a hydrogen outlet (9) is arranged at the bottom of the reactor (1).

2. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 1, characterized in that: The reactor (1) is cylindrical or square.

3. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 1, characterized in that: The hydrogen storage module (2) is formed into a fixed shape by using a stainless steel wire mesh.

4. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 1 or 3, characterized in that: The hydrogen storage module (2) is arranged in two layers, an upper layer and an lower layer, and a perforated plate (4) is arranged between the upper layer hydrogen storage module (2) and the lower layer hydrogen storage module (2), and the perforated plate (4) is grooved.

5. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 1, characterized in that: A plurality of inner fins (3) are distributed in the circumferential direction of the reactor (1).

6. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 5, characterized in that: The height of the inner fins (3) is not less than the stacking height of the hydrogen storage modules (2).

7. The hydrolysis hydrogen production device with multiple hydrogen storage modules according to claim 1, characterized in that: The reactor (1) has a jacket (5); circulating water flows inside the jacket (5); and the jacket (5) has a circulating water inlet (7) and a circulating water outlet (8).

Images