CN216896784U - High-pressure hydrogen storage device and system - Google Patents
High-pressure hydrogen storage device and system Download PDFInfo
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- CN216896784U CN216896784U CN202220247168.2U CN202220247168U CN216896784U CN 216896784 U CN216896784 U CN 216896784U CN 202220247168 U CN202220247168 U CN 202220247168U CN 216896784 U CN216896784 U CN 216896784U
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Abstract
The utility model discloses a high-pressure hydrogen storage device and a system, which comprise a plurality of capillaries for storing hydrogen, wherein a metal organic framework adsorption material or a covalent organic compound adsorption material is synthesized in situ in each capillary; then integrating a plurality of capillaries in an array to form a hydrogen storage tube bundle; and (3) connecting external compressed hydrogen from one end of the hydrogen storage tube bundle, and storing the hydrogen in each capillary tube in the hydrogen storage tube bundle. The utility model adopts the integrated low-density capillary tube bundle with high tensile strength and internally filled with the metal organic framework adsorption material or covalent organic compound adsorption material in situ to store hydrogen, has flexible assembly, high hydrogen storage pressure and strong hydrogen storage capacity, and realizes the storage of high-pressure hydrogen in a relatively light container.
Description
Technical Field
The utility model relates to the technical field of hydrogen storage, in particular to a high-pressure hydrogen storage device and system.
Background
The hydrogen energy is used as a novel green and clean energy source, has the characteristics of high combustion heat value and no pollution, and is an attractive substitute for the traditional fossil energy source. Fuel cell powered vehicles power the vehicle by combining hydrogen with air to convert chemical energy into electrical energy, and the only product of the reaction is water, there is no emission of pollutants, and it can be recycled to regenerate hydrogen. The popularization of hydrogen energy is very expected to provide an effective solution for relieving the air quality problem.
The storage and transportation of hydrogen has been a key challenge in the development of hydrogen energy applications. Two major problems have prompted innovation in current hydrogen storage systems. First, hydrogen, the element with the smallest atomic radius, has very high permeability in many materials. Hydrogen permeation can cause changes in the internal structure of the hydrogen storage material, resulting in hydrogen embrittlement. Hydrogen embrittlement results in a material with greatly reduced ductility and is highly susceptible to cracking and failure. Therefore, high tensile strength, no reaction with hydrogen, and low hydrogen diffusivity are desirable characteristics of the hydrogen storage material. Furthermore, the gas storage system should be able to withstand the high pressures associated with compressed hydrogen and, for ease of transportation, the system must be portable and mobile. The hydrogen storage systems that meet these requirements are currently made of metallic materials, alloys and/or composite materials, which are generally heavy, making the bulk and mass densities of the storage systems difficult to meet.
High pressure cylinders are currently the most widely used hydrogen storage technology and provide hydrogen storage densities of 1 wt% and 16g/L by weight and volume, respectively. The substitute of the steel cylinder comprises a liquid hydrogen storage tank, a composite material hydrogen storage tank, adsorption hydrogen storage, metal hydride hydrogen storage modes and the like.
Liquid hydrogen storage tanks are typically only used for large-scale long distance hydrogen transportation because of the high capital cost and energy consumption requirements of hydrogen liquefaction plants. Although this is a relatively mature technology, it is difficult to scale down efficiently. For small tanks, evaporation due to the higher surface/volume ratio is a major problem.
In order to reduce the structural weight, fiber-reinforced composites are known to be used for manufacturing hydrogen storage tanks. The inner liner of such hydrogen storage tanks is usually made of aluminum or polymer, which is then coated with glass or carbon fiber. Such gas storage tanks can provide hydrogen storage densities up to 5 wt% and 26g/L by weight and volume. However, the carbon fiber has a high production cost, so that the composite material gas cylinder made of the carbon fiber is much more expensive than a steel cylinder.
Adsorption hydrogen storage is a method of weakly binding hydrogen molecules to the surface of an adsorbent by physical adsorption, however, considerable hydrogen storage capacity can be obtained only at low temperature close to 77K, and the method is difficult to be commercially applied.
Metal hydrides are formed by the dissociation of hydrogen molecules to form hydrogen atoms that occupy interstitial sites in the crystal structure of a metal, intermetallic compound or alloy. The formation of such metal hydrides is often accompanied by the release of heat of absorption (typically 30-70kJ/mol), expansion of the crystal structure (up to 30%) and the decrepitation/settling effect on cycling. Therefore, in this system, thermal control and control of mechanical deformation are important. In addition, the cost which is too expensive is a great obstacle to the commercial application of the solid hydrogen storage.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a high-pressure hydrogen storage method, a device and a system, wherein the high-pressure hydrogen storage method, the device and the system are characterized in that a low-density capillary tube bundle which has high tensile strength and is internally filled with MOF or COF materials in situ is integrated, one end of the low-density capillary tube bundle is connected with external compressed hydrogen, the hydrogen is stored in a capillary tube, the structure is simple, the use efficiency is high, the hydrogen can be repeatedly filled, the cost is low, and the high-pressure hydrogen is stored in a relatively lighter container.
The utility model adopts the following technical scheme:
a high-pressure hydrogen storage method comprises multiple capillaries for storing hydrogen, and in-situ synthesizing metal organic framework adsorption material or covalent organic compound adsorption material in each capillary; then integrating a plurality of capillary tubes in an array to form a hydrogen storage tube bundle; and external compressed hydrogen is connected from one end of the hydrogen storage tube bundle, and the hydrogen is stored in each capillary tube in the hydrogen storage tube bundle.
The method for in-situ synthesis of the metal organic framework adsorption material in the capillary comprises the following steps:
s1-1, mixing zinc nitrate Zn (NO)3)2 6H2Dissolving 0 and 4, 4' -benzene-1, 3, 5-triacyl tribenzoic acid in N, N-diethylformamide to form a first solution;
s1-2, enabling the first solution to enter the capillary tube through vacuumizing, reacting for two days at 80-85 ℃ to generate tiny crystals, and pouring out a yellow solution after cooling;
s1-3, washing the crystal with N, N-dimethylformamide for 2-4 times, and then soaking in chloroform for 48-96 hours;
and S1-4, putting the soaked crystal into a vacuum oven, and drying for 6-8 hours at 110-120 ℃ to obtain the metal organic framework adsorbing material distributed in the capillary.
The method for in-situ synthesis of the covalent organic compound adsorption material in the capillary comprises the following steps:
s2-1, uniformly mixing the mixed solution of mesitylene and dioxane with tetrakis (4-boraphenyl) methane to form a second solution;
s2-2, enabling the second solution to enter the capillary tube through vacuumizing, reacting for 80-110 hours at 80-85 ℃ to obtain a white precipitate I, and pouring out the residual solution;
and S2-3, washing the obtained white precipitate I with anhydrous tetrahydrofuran, and then drying in vacuum at room temperature to remove the solvent, thereby obtaining the covalent organic compound adsorbing material distributed in the capillary.
Or, the method for in-situ synthesizing the covalent organic compound adsorbing material in the capillary tube comprises the following steps:
s3-1, uniformly mixing the mixed solution of mesitylene and dioxane with tetra (4-phenyl borate) silane to form a second solution;
s3-2, enabling the second solution to enter the capillary tube through vacuumizing, reacting for 80-110 hours at 80-85 ℃ to obtain a white precipitate II, and pouring out the residual solution;
and S3-3, washing the obtained white precipitate II with anhydrous tetrahydrofuran, and then drying in vacuum at room temperature to remove the solvent, thereby obtaining the covalent organic compound adsorbing material distributed in the capillary.
Zinc nitrate Zn (NO) in the S1-13)2 6H20. The mass/volume ratio of 4, 4' -benzene-1, 3, 5-triacyl tribenzoic acid to N, N-diethylformamide is (17-20 mg) and (3.5-4.5 mg) is 1 mL;
the volume/mass ratio of trimethylbenzene, dioxane and tetra (4-boranophenyl) methane in the S2-1 is 1mL to 1mL (40-60 mg);
the volume/mass ratio of trimethylbenzene, dioxane and tetra (4-phenyl borate) silane in the S3-1 is 3mL to 1mL (50-60 mg).
The high pressure hydrogen storage device comprises a plurality of capillary tubes for storing hydrogen, wherein the capillary tubes are integrated in an array to form a hydrogen storage tube bundle, two ends of the hydrogen storage tube bundle are opened, a metal organic framework adsorption material or a covalent organic compound adsorption material is synthesized in situ in the capillary tubes, one end of the hydrogen storage tube bundle 1 is provided with an air inlet adapter for storing external compressed hydrogen, the other end of the hydrogen storage tube bundle is provided with an air outlet adapter for flowing out of the internal compressed hydrogen, and two ends of each capillary tube are respectively communicated with the air inlet adapter and the air outlet adapter.
Preferably, the capillary material is one of magnesium silicate glass, borosilicate glass, fused silica or polymer, and the ratio of the tensile strength alpha to the material density rho satisfies alpha/rho > 1750 MPa-cm3/g。
Preferably, the cross-sectional shape of the capillary is one of circular, hexagonal or square, and the diameter or cross-sectional width thereof is 1 μm to 8 mm; the particle size of the metal organic framework adsorption material or covalent organic compound adsorption material is 1nm-5 mu m.
The hydrogen storage tube bundle is sequentially provided with a plurality of capillaries, an enhancement layer and an outer shell layer from inside to outside, and the enhancement layer coats the capillaries; the capillary tube is arranged along the length direction of the outer shell layer in a through-length mode, and the air inlet adapter and the air outlet adapter are fixedly and hermetically connected with the two end portions of the outer shell layer through threads or adhesives respectively.
The air inlet adapter is internally integrated with a one-way valve which can be conducted only from outside to inside, and the air outlet adapter is internally integrated with a one-way valve which can be conducted only from inside to outside.
Preferably, the reinforcing layer and the outer shell layer are one of a metal layer, a plastic layer, or a composite material layer.
A hydrogen inlet is formed in one end, far away from the hydrogen storage tube bundle, of the air inlet adapter, and the one-way valve which is conducted from outside to inside is arranged close to the hydrogen inlet; one end of the air outlet adaptor, which is far away from the hydrogen storage tube bundle, is provided with a hydrogen outlet, and the one-way valve which is communicated from inside to outside is arranged close to the hydrogen outlet end.
A high-pressure hydrogen storage system comprises n (n is more than or equal to 2) high-pressure hydrogen storage devices, and an inlet coupler and an outlet coupler which are arranged at two ends of the high-pressure hydrogen storage devices, wherein the n high-pressure hydrogen storage devices are connected in parallel and then are communicated with each inlet adapter through the inlet coupler, and are communicated with each outlet adapter through the outlet coupler, and guide pipes for adding hydrogen into the system or releasing the hydrogen from the system are respectively arranged on the inlet coupler and the outlet coupler.
The technical scheme of the utility model has the following advantages:
A. the utility model adopts the integrated low-density capillary tube bundle which has high tensile strength and is internally filled with the metal organic framework adsorption material or covalent organic compound adsorption material in situ to store hydrogen, has flexible assembly, high hydrogen storage pressure (up to 150MPa), strong hydrogen storage capacity (the weight hydrogen storage density is up to 20-25 percent, and the volume hydrogen storage density is up to 70-80 g/L), and realizes the storage of high-pressure hydrogen in a relatively light container.
B. The capillary tube bundle adopts a bidirectional opening, the two ends of the capillary tube bundle are respectively provided with the one-way valves, one end of the capillary tube bundle is used for air inlet, and the other end of the capillary tube bundle is used for air outlet.
C. Compared with a high-pressure hydrogen storage tank, the capillary hydrogen storage technology is formed by combining numerous tiny pressure-resistant capillaries to form an ultra-strong stable structure. Each fine capillary tube is used as a single pressure container, and because the hydrogen storage capacity of the single capillary tube is very small, the hydrogen leakage cannot form an explosion environment.
D. The capillary tube hydrogen storage technology is convenient and fast to connect, rapid in hydrogen filling and modular and replaceable. The capillary tube stores hydrogen and is formed in a modularized mode, a small capillary tube is combined together to form a large storage unit assembly, then the storage unit assemblies are stacked to form a large storage system, and module replacement is quick and convenient.
E. The capillary tube hydrogen storage technology is a modular structure, and the shape, the size and the capacity of the hydrogen storage device can be designed and installed at will.
F. The present invention can construct a hydrogen storage system of a particular size and shape to couple to any desired consumption system by selecting the pattern and number of array elements and the form of assembly of a particular array element. For example, a hydrogen storage system module can be constructed by making full use of a narrow space in an automobile and mounted on a hydrogen fuel cell automobile to supply power to a fuel cell.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive effort.
FIG. 1 is a perspective view of a high pressure hydrogen storage apparatus provided by the present invention;
FIG. 2 is a cross-sectional view (one) of the bundle of hydrogen storage tubes of FIG. 1;
FIG. 3 is a cross-sectional view of the hydrogen storage tube bundle of FIG. 1;
FIG. 4 is a cross-sectional view (III) of the hydrogen storage tube bundle of FIG. 1;
FIG. 5 is a schematic view of the overall structure of the high pressure hydrogen storage system provided by the present invention.
The labels in the figure are as follows:
1-hydrogen storage tube bundle, 11-capillary tube, 12-enhancement layer, 13-shell layer; 2 a-intake adapter, 2a 1-hydrogen inlet; 2 b-outlet adapter, 2b 1-hydrogen outlet; 3 a-an intake coupler; 3 b-an out-coupling; 4-a catheter.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships indicated on the basis of the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a high-pressure hydrogen storage method, which comprises a plurality of capillaries for storing hydrogen, and in-situ synthesis of metal organic framework compounds (MOF) or covalent organic framework Compounds (COF) in each capillary; then integrating a plurality of capillaries in an array to form a hydrogen storage tube bundle; and external compressed hydrogen is connected from one end of the hydrogen storage tube bundle, and the hydrogen is stored in each capillary tube in the hydrogen storage tube bundle. MOFs are coordination polymers formed by self-assembly of organic ligands with transition metal ions, which have the advantage of hydrogen storage that the compounds of the MOF series have a high specific surface area and pore volume. The COF is a novel porous material developed on the basis of an MOF material, because the skeleton of the COF material is completely composed of light elements (H, B, O, C, Si and the like), the COF material has low crystal density and is more favorable for hydrogen adsorption, and hydrogen elements are connected through strong covalent bonds (C-C, C-O, B-O, Si-C and the like), so that a one-dimensional or three-dimensional porous structure can be formed, and the COF material has high specific surface area and is suitable for hydrogen storage. According to the structural characteristics of the capillary tube, the MOF and the COF are synthesized in situ in the capillary tube, and the particle diameters of the MOF and the COF are 1nm-5 mu m, so that the advantages of hydrogen storage of the MOF and the COF are combined together, and a better hydrogen storage effect can be achieved.
Further, the method for in-situ synthesizing the metal organic framework adsorption material inside the capillary tube comprises the following steps:
s1-1, mixing zinc nitrate Zn (NO)3)2 6H2Dissolving 0 and 4,4 '-benzene-1, 3, 5-triacyl tribenzoic acid in N, N-diethylformamide to form a first solution, wherein the mass/volume ratio of the 0 and 4, 4' -benzene-1, 3, 5-triacyl tribenzoic acid to the N, N-diethylformamide is (17-20 mg): 3.5-4.5 mg):1 mL;
s1-2, enabling the first solution to enter the capillary tube through vacuumizing, reacting for two days at 80-85 ℃ to generate tiny crystals, and pouring out a yellow solution after cooling;
s1-3, washing the crystal with N, N-dimethylformamide for 2-4 times, and then soaking in chloroform for 48-96 hours;
and S1-4, putting the soaked crystal into a vacuum oven, and drying for 6-8 hours at 110-120 ℃ to obtain the metal organic framework adsorbing material distributed in the capillary.
The method for in-situ synthesis of covalent organic compound adsorbing material in the capillary comprises the following steps:
s2-1, uniformly mixing the mixed solution of mesitylene and dioxane with 1mL (40-60 mg) of tetra (4-boraophenyl) methane according to the volume/mass ratio of 1mL to form a second solution;
s2-2, enabling the second solution to enter the capillary tube through vacuumizing, reacting for 80-110 hours at 80-85 ℃ to obtain a white precipitate I, and pouring out the residual solution;
and S2-3, washing the obtained white precipitate I with anhydrous tetrahydrofuran, and then drying in vacuum at room temperature to remove the solvent, thereby obtaining the covalent organic compound adsorbing material distributed in the capillary.
Alternatively, the method for in situ synthesis of covalent organic compound adsorbent material inside capillary is as follows:
s3-1, uniformly mixing the mixed solution of mesitylene and dioxane with 1mL (50-60 mg) of tetra (4-boraophenyl) silane according to the volume/mass ratio of 3mL to 1mL to form a second solution;
s3-2, enabling the second solution to enter the capillary tube through vacuumizing, reacting for 80-110 hours at 80-85 ℃ to obtain a white precipitate II, and pouring out the residual solution;
and S3-3, washing the obtained white precipitate II with anhydrous tetrahydrofuran, and then drying in vacuum at room temperature to remove the solvent, thereby obtaining the covalent organic compound adsorbing material distributed in the capillary.
As shown in fig. 1, the present invention further provides a high pressure hydrogen storage device, which includes a plurality of capillaries 11 for storing hydrogen, the capillaries 11 are integrated in an array to form a hydrogen storage tube bundle 1, two ends of the hydrogen storage tube bundle 1 are open, and a Metal Organic Framework (MOF) or covalent organic Compound (COF) adsorbent is synthesized in situ in each capillary 11, one end of the hydrogen storage tube bundle 1 is provided with an inlet adapter 2a for storing external compressed hydrogen, the other end is provided with an outlet adapter 2b for allowing internal compressed hydrogen to flow out, and two ends of each capillary 11 are respectively connected to the inlet adapter 2a and the outlet adapter 2 b.
The utility model adopts the integrated low-density capillary tube bundle which has high tensile strength and is internally filled with the MOF or COF material in situ for hydrogen storage, has flexible assembly, high hydrogen storage pressure (up to 150MPa), strong hydrogen storage capacity (the weight hydrogen storage density is up to 20-25 percent, and the volume hydrogen storage density is up to 70-80 g/L), and realizes the storage of high-pressure hydrogen in a relatively lighter container. Compared with a high-pressure hydrogen storage tank, the capillary hydrogen storage technology is formed by combining numerous tiny pressure-resistant capillaries to form an ultra-strong stable structure. Each fine capillary tube is used as a single pressure container, and because the hydrogen storage capacity of a single capillary tube is extremely small, the hydrogen leakage cannot form an explosion environment.
Furthermore, the hydrogen storage tube bundle 1 is sequentially provided with a plurality of capillary tubes 11, a reinforcing layer 12 and an outer shell layer 13 from inside to outside, and the reinforcing layer 12 coats the plurality of capillary tubes 11; the capillary tube 11 is arranged along the length direction of the outer shell layer 13, and the air inlet adapter 2a and the air outlet adapter 2b are respectively fixedly and hermetically connected with two end parts of the outer shell layer 13 through threads or adhesives. The air inlet adapter 2a is integrated with a one-way valve which can be conducted only from outside to inside and is used for storing external compressed hydrogen into the hydrogen storage tube bundle 1, and the air outlet adapter 2b is integrated with a one-way valve which can be conducted only from inside to outside and is used for discharging the compressed hydrogen in the hydrogen storage tube bundle 1. The capillary tube bundle in the structure of the utility model adopts a bidirectional opening, and two ends of the capillary tube bundle are respectively provided with a one-way valve, one end of the capillary tube bundle is used for air inlet, and the other end of the capillary tube bundle is used for air outlet. The check valve of the utility model is a check valve.
The single hydrogen storage capillary tube 11 is made of a material having a high tensile strength alpha and a low mass density rho, and the ratio of the tensile strength alpha to the material density rho satisfies alpha/rho > 1750 MPa-cm3In terms of/g, the materials that can be selected are magnesium silicate glass, borosilicate glass, fused silica, polymers, or the like. The reinforcement layer 12 and the outer shell layer 13 may be free of any suitable metal, plastic or composite material depending on the desired thickness, shape and stiffness to provide sufficient mechanical strength to protect the internal capillary hydrogen storage array.
The cross-sectional shape of the capillary 11 includes, but is not limited to, a circle, a hexagon, a square, etc., and the diameter or cross-sectional width thereof is 1 μm to 8 mm. The capillary tube 11 may be capped at both ends by melting, brazing, welding or other methods known in the art, and compressed hydrogen gas may be admitted into the capillary tube through one end opening and stored therein, and discharged from the capillary tube through one end opening for fuel application.
The capillaries with different cross-sectional shapes can obtain array packages with different structural shapes by close combination. As shown in fig. 2, the capillaries 11 having a quadrangular cross section can be assembled in close contact in an array having a square or rectangular cross section, and reinforced by a reinforcing layer 12, enclosed in an outer shell layer 13. Also, as shown in fig. 3, the capillaries 11 having a hexagonal cross section can be assembled into an array having a hexagonal cross section. It should be noted that in an array, if there are gaps between adjacent capillaries that do not fit closely together, the space between the walls of the tube is filled with a material, such as epoxy, glass, etc. In fig. 4, the cylindrical capillaries 11 can be assembled in an array with a cross-section of a nearly circular shape, but there are still gaps between the closely packed cylinders, which can be filled with epoxy adhesive or glass. From the foregoing, it can be appreciated that by varying the shape and combination of the capillaries, a hydrogen storage tube bundle 1 of any desired size and shape of capillary array can be obtained.
In addition, one end of the air inlet adapter 2a, which is far away from the hydrogen storage tube bundle 1, is provided with a hydrogen inlet 2a1, and the one-way valve which is communicated from outside to inside is arranged close to the end of the hydrogen inlet 2a 1; one end of the air outlet adaptor 2b far away from the hydrogen storage tube bundle 1 is provided with a hydrogen outlet 2b1, and the one-way valve which is communicated from inside to outside is arranged close to the end of the hydrogen outlet (2b 1). The one-way valve can control hydrogen gas to be sealed in the capillary tube and allow hydrogen gas to pass through when needed, for example, when the one-way valve on the gas inlet adapter 2a is opened, external compressed hydrogen gas is added to the hydrogen storage tube bundle 1 through the hydrogen gas inlet 2a1 for hydrogenation, or when the one-way valve on the gas outlet adapter 2b is opened, the hydrogen gas outlet 2b1 is connected to an external hydrogen burning device for hydrogen gas release.
As shown in fig. 5, the present invention further provides a system for high pressure hydrogen storage, which comprises n (n is greater than or equal to 2) high pressure hydrogen storage devices, and an inlet coupler 3a and an outlet coupler 3b arranged at two ends of the high pressure hydrogen storage devices, wherein the n high pressure hydrogen storage devices are connected in parallel and then are communicated with each inlet coupler 2a through the inlet coupler 3a, and are communicated with each outlet coupler 2b through the outlet coupler 3b, and the inlet coupler 3a and the outlet coupler 3b are respectively provided with a conduit 4 for adding hydrogen to the system or releasing hydrogen therefrom. The high-pressure hydrogen storage system has the advantages of convenient and fast connection of capillary hydrogen storage technology, rapid hydrogen charging and modularized replacement. The capillary tube stores hydrogen for the modularization constitution, combines a tiny capillary tube together and constitutes big storage unit subassembly, superposes storage unit subassembly and constitutes big storage system again, and the module replacement is very swift convenient.
Since the capillary hydrogen storage technology is a modular structure, the present invention can construct a specific size and shape of a high pressure hydrogen storage system by selecting the pattern and number of the array hydrogen storage tube bundles and the assembly form of the specific array hydrogen storage tube bundles 1 to couple to any desired hydrogen consumption system required externally. For example, a hydrogen storage system module can be constructed by making full use of a narrow space in an automobile and mounted on a hydrogen fuel cell automobile to supply power to a fuel cell.
The utility model is applicable to the prior art where nothing is said.
It should be understood that the above-described embodiments are merely examples for clarity of description and are not intended to limit the scope of the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This list is neither intended to be exhaustive nor exhaustive. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (8)
1. The utility model provides a high pressure hydrogen storage device, its characterized in that includes a plurality of capillaries (11) that store hydrogen, capillary (11) are array integration back formation hydrogen storage tube bank (1), the both ends opening of hydrogen storage tube bank (1), and every the inside in situ synthesis metal organic framework adsorption material or the covalent organic compound adsorption material of capillary (11), the one end of hydrogen storage tube bank (1) is equipped with the adapter (2 a) of admitting air that is used for outside compressed hydrogen to deposit, and the other end is equipped with the adapter (2 b) of giving vent to anger that is used for inside compressed hydrogen to flow, every the both ends of capillary (11) respectively with the adapter (2 a) of admitting air and the adapter (2 b) of giving vent to anger switch on mutually.
2. A high pressure hydrogen storage apparatus according to claim 1, characterized in that the capillary tube (11) material is one of magnesium silicate glass, borosilicate glass, fused silica or a polymer, and the ratio of the tensile strength α to the material density ρ is such that α/ρ > 1750MPa x cm3/g。
3. The high pressure hydrogen storage apparatus according to claim 2, wherein the capillary tube (11) has a cross-sectional shape of one of a circle, a hexagon or a square, and has a diameter or a cross-sectional width of 1 μm to 8 mm; the particle size of the metal organic framework adsorption material or covalent organic compound adsorption material is 1nm-5 mu m.
4. The high-pressure hydrogen storage device according to claim 3, wherein the bundle (1) is provided with a plurality of capillaries (11), a reinforcing layer (12) and an outer shell layer (13) in sequence from inside to outside, the reinforcing layer (12) covering the plurality of capillaries (11); the capillary tube (11) is arranged along the length direction of the outer shell layer (13), and the air inlet adapter (2 a) and the air outlet adapter (2 b) are respectively fixedly and hermetically connected with two end parts of the outer shell layer (13) through threads or adhesives.
5. The device for storing hydrogen under high pressure as claimed in claim 4, wherein the inlet adapter (2 a) has a one-way valve integrated therein that can be conducted only from the outside to the inside, and the outlet adapter (2 b) has a one-way valve integrated therein that can be conducted only from the inside to the outside.
6. The high pressure hydrogen storage arrangement according to claim 5, characterized in that the reinforcement layer (12) and the outer shell layer (13) are one of a metal layer, a plastic layer or a composite layer.
7. The high-pressure hydrogen storage device according to claim 6, wherein the inlet adapter (2 a) is provided with a hydrogen inlet (2 a 1) at the end far away from the hydrogen storage tube bundle (1), and the one-way valve conducting from outside to inside is arranged near the end of the hydrogen inlet (2 a 1); one end of the air outlet adaptor (2 b) far away from the hydrogen storage tube bundle (1) is provided with a hydrogen outlet (2b1), and the one-way valve which is communicated from inside to outside is arranged close to the end of the hydrogen outlet (2b 1).
8. A high pressure hydrogen storage system, comprising n (n ≧ 2) high pressure hydrogen storage devices according to any one of claims 1 to 7, and a gas inlet coupler (3 a) and a gas outlet coupler (3 b) provided at both ends of the devices, wherein the n high pressure hydrogen storage devices are connected in parallel and then conducted with each of the gas inlet adapters (2 a) through the gas inlet coupler (3 a), and conducted with each of the gas outlet adapters (2 b) through the gas outlet coupler (3 b), and the gas inlet coupler (3 a) and the gas outlet coupler (3 b) are respectively provided with a conduit (4) for adding hydrogen to the system or releasing hydrogen therefrom.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114370603A (en) * | 2022-01-30 | 2022-04-19 | 北京东方红升新能源应用技术研究院有限公司 | High-pressure hydrogen storage method, device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370603A (en) * | 2022-01-30 | 2022-04-19 | 北京东方红升新能源应用技术研究院有限公司 | High-pressure hydrogen storage method, device and system |
| CN114370603B (en) * | 2022-01-30 | 2024-05-10 | 北京东方红升新能源应用技术研究院有限公司 | High-pressure hydrogen storage method, device and system |
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